C C in 2014. · 2020. 7. 24. · Kyogle Council – IWCM Issues Paper Page 104 in annual average...

Kyogle Council – IWCM Issues Paper

04

in annual average maximum temperatures since 2010 of 2.96 °C was observed for the Bonalbo area with the highest average annual temperature of 32 °C in 2014.

There was a small increase in metered usage for most customer sectors between 2010 and 2018 which corresponds with the increase in maximum average temperature in the same period. However, any link between usage and temperature is not quantifiable in the absence of more detailed data.

Figure 54: Annual metered usage and temperature - Bonalbo 2010 - 2018

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13.3.3 Demand Forecast

As discussed in Section 13.3.1, raw water extraction and WTP production at Bonalbo has been influenced by the leak in the reservoir. Hence recorded NRW is high (37% on average). For the purposes of forecasting future demand, the NRW following the repair of the reservoir is assumed to be 15% on average (similar to Kyogle NRW, Section 13.4.1).

Annual dry year demand for each of the customer categories was calculated based on years with high temperatures and low rainfall along with high metered usage (2014 for the industrial category, 2018 for the residential un-sewered category and 2017 for other categories). The current average and dry year demand is shown in Table 43.

Table 43: Average and dry year demand – Bonalbo water supply

Customer category Metered connections

(2018)

Average Dry year

Metered usage (kL/a/connection)

Demand (ML/a)


Demand (ML/a)

Commercial 17 158 2.8 202 3.4

Industrial 4 53 0.2 84 0.4

Institutional 15 159 2.4 183 2.7

Public Parks 2 271 0.5 328 0.7

Residential sewered 181 99 17.9 104 18.8

Residential un-sewered

4 168 0.7 194 0.8

Total Metered Usage - 24.4 - 26.8

NRW (15%) - 4.3 - 4.7

Total Dry Year Demand - 28.7 - 31.5

The current dry year unrestricted demand for Bonalbo is 31.5 ML/a. Future growth in metered connections for the residential sewered and commercial sectors is assumed to be 0.75 % with zero growth in the other customer categories (refer Section 12.2.2). Figure 55 shows the raw water average and dry year demand forecast to 2048. The historical annual demand reflects the losses attributable to the reservoir leaks. The dry year demand forecast assumes that following repairs to the reservoir, the losses from the reservoir will be reduced to 15% and hence the starting level for forecast production has been set correspondingly lower. Annual metered use may reduce further with improvements in infrastructure and public awareness of water conservation.


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Figure 55: Forecast average and dry year demand - Bonalbo

13.4 Kyogle Water Supply

13.4.1 Water Production and Consumption

Council has provided data on WTP production between 1967 and June 2018. The following time series graphs show historical daily, monthly and annual WTP production (data errors have been removed). Raw water inflow to Kyogle WTP is not monitored. Production has decreased significantly since the introduction of user pays pricing in the late 1980s and again with the introduction of further demand management measures in the early 2000s. The spike in production in 2002/2003 is associated with metering errors and has not been corrected in this data set. Since the early 2000s demand has stayed relatively stable with a high summer/low winter demand pattern.

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Figure 56: Kyogle WTP historical daily production 1967 - 2018

Figure 57: Kyogle WTP historical monthly production 1967 – 2018

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Figure 58: Kyogle WTP historical monthly production 2000 – 2018

Figure 59: Kyogle WTP historical annual production

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Figure 60 shows the annual metered consumption data for Kyogle for the years 2010-2018. Residential consumption makes up an average of 76% of total consumption. The data for 2015 may be erroneous (refer Section 12.2.1).

Figure 60: Kyogle demand profile for 2006 - 2018

Water production, consumption and non-revenue water are shown in Figure 61. Data on non-revenue water (NRW, the difference between raw water supply and metered customer consumption) from Figure 61 are shown in Table 44 below. As raw water extraction is not metered, raw water losses are assumed to be 3% of WTP production (in the absence of actual data).

Table 44: Non-revenue water - Kyogle

Year Raw water extraction

(ML/a)1

Total water production

(ML/a)

Total metered demand (ML/a)

NRW (ML/a) % NRW

2006 336 326 286 50 15%

2007 330 320 290 40 12%

2008 299 290 221 78 26%

2009 306 297 273 32 11%

2010 335 325 211 124 37%

2011 294 286 168 126 43%

2012 290 281 207 83 29%

2013 304 295 219 85 28%

2014 304 295 233 71 23%

2015 296 287 291 5 2%

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Year Raw water extraction

(ML/a)1

Total water production

(ML/a)

Total metered demand (ML/a)

NRW (ML/a) % NRW

2016 291 282 253 38 13%

2017 334 325 280 54 16%

2018 361 350 299 61 17%

Average (since 2016)

328 319 277 51 15%

1. WTP losses estimated as 3% of WTP production.

Figure 61: Raw water input, metered consumption and NRW - Kyogle

13.4.2 Water Demand Analysis

Water Production

Historically, water usage in Kyogle (indicated by WTP production) has been much greater than in recent years. From 1967 – 1987, average daily production was 2.38 ML/d. Between 1988 and 2000 (prior to the drought) when formal demand management measures were introduced average daily production was 1.55 ML. During the 2001/02 drought, average daily production increased to 2.05 ML/d. More recent production (since 2009) averaged 830 kL/d. Council’s demand management program, user pays pricing and other measures such as BASIX appear to have reduced the level of consumption based on the historical data.

Previous work on climate correction, tracking and demand prediction has been undertaken for Kyogle Council as reported in the IWCM Strategy Study (MWH, 2006). The aim of climate correction is to adjust or normalise the observed consumption on the basis of the climate factors experienced in that period. As part of the previous IWCM, MWH initially applied the DEUS Water Tracking Software with a view to establishing climate-corrected demand, however the model failed to adequately describe per capita water production

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(attributed to data input factors). An alternative analysis was then undertaken using purpose-built software which adopted a typical climate-corrected demand of 400 L/person per day (for the period following the introduction of volumetric charges and prior to known restrictions i.e. 1999 - 2002). This resulted in a then current (2005) climate corrected demand for Kyogle of 38 ML/month or 460 ML/a (MWH, 2006). Since the IWCM Strategy, water usage in Kyogle has decreased significantly (with the introduction of demand management measures) and has remained relatively constant in the last 10 years. Due to the recent changes in water usage patterns, 460 ML/a is no longer considered to be an appropriate starting point for extrapolation of water demand into the future.

Since the introduction of water restrictions during 2002/03, demand has dropped significantly and has remained at this lower level, indicating that behavioural changes have had a long-lasting influence which is likely to continue into the future. Water restrictions up to Level 2 were imposed during the Kyogle WTP upgrade (2016). Restrictions were also imposed in 2018/19 due to drought (up to Level 2 in April 2019). There were no other restrictions during the period of water production data available.

Demand management measures have also significantly influenced demand in Kyogle as shown in Figure 58. It is considered appropriate to adopt the recent (last 10 years) historical demand (WTP production) as representative of current demand patterns.

A comparison of monthly WTP production and deviation of annual maximum temperature with the long-term average at Kyogle (Figure 62) shows that higher temperatures from the beginning of summer appear to correspond with increased demand although the higher demand is not sustained throughout the summer period. Cooler conditions also correspond with lower demand.

Figure 62: Kyogle WTP production compared to temperature deviation

Monthly WTP production over the last ten years is compared to rainfall in Figure 63. Periods of low rainfall generally correspond with higher demand. The highest monthly WTP production for the months of January – September was experienced since March 2017 with October, November and December’s highest demand experienced in 2009.

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Figure 63: Monthly WTP production and rainfall – Kyogle 2009 - 2018

Annual WTP production over the last ten years is compared to rainfall in Figure 64. The maximum production was experienced in 2017/18 (350 ML/a) with rainfall of 1,010 mm (similar to average rainfall). There is no clear correlation between annual rainfall and demand.

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Figure 64: Annual WTP production and rainfall – Kyogle 2010 - 2018

A peak day demand (WTP output) of 2.9 ML/d was experienced in November 2009 (Figure 56, last ten years). Average daily treated water demand over the last ten years is 830 kL/d. Table 45 lists the highest production days for the Kyogle WTP from 2009 - 2018 (i.e. production > 2 ML/day). Generally, days of peak demand were preceded by hot, dry conditions and in most cases there was an obvious ramping up of water production prior to the peak and a ramping down following the peak. The data suggests that a real peak day demand of 2.9 ML/day was experienced in November 2009, following a sustained period of dry, hot weather and very high temperatures on the day of the peak. Data on connection types is not available to analyse the proportion of peak demand attributable to various uses. However, it is expected that increased water usage during hot, dry conditions would be primarily due to increased outdoor use such as watering gardens and rural uses.

The highest demand experienced since 2013 was 1.9 ML/d in November 2016.

Table 45: Peak day production data from Kyogle WTP (2009 – 2013)

Date Peak day Production (ML)

Discussion of climatic and other factors

20/11/2009 2.89 Production levels ramping up on days before peak, then a slightly higher peak recorded the following day and then ramping down

Dry month leading up to peak and only 0.5mm in 9 days prior to peak.

Very high temperatures in week before and day of peak (max temp 37°C)

21/11/2009 2.91 Production levels ramping up and down either side of peak

Dry month leading up to peak and only 0.5mm in 10 days prior to peak.

Very high temperatures in week before and day of peak (max temp 37°C)

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Discussion of climatic and other factors

27/9/2010 2.07 No obvious ramping up on days before or after peak

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14/12/2010 2.12 Ramping up 3 days before peak, dropped back to average (0.7) after peak.

Moderate rainfall in month prior (>100mm) and 34.6mm the day before peak, 2.8mm the day of peak.

High temperatures in week before and day of peak (max temp 27°C)

31/5/2012 2.27 Ramping down in 3 days previous, then ramping down after peak

Dry month prior to peak (13mm), but some rainfall in week leading up to peak (11mm) and 31mm on day of peak.

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7/6/2012 2.27 Production levels ramping up either side of peak

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Cool temperatures (max temp 17°C)

15/1/2013 2.28 No obvious ramping up on days before or after peak

Moderate rainfall in month prior (124mm) but only 0.6mm in 2 weeks before peak, 9mm the day of peak.

Moderate temperatures in week before and day of peak (max temp 26°C).

Metered Usage

Annual metered usage for each customer category is compared to annual rainfall at Kyogle between 2010 and 2018 (Figure 65). The 2015 data provided is considered unreliable and has not been included in the demand analysis.

An increase in metered usage since 2010 in the majority of customer categories was observed. Most increases are likely to be due to additional metered connections across all sectors rather than an increase in water usage (refer Appendix 3). The largest increase was in residential sewered usage with the second largest increase in the commercial sector. Residential sewered connections increased by 318 since 2010 with commercial sector connections increasing by 46.

Analysis of rainfall and metered usage data shows annual metered usage is not directly correlated to annual rainfall. No real relationship between the two parameters could be established from the data provided. The increase in metered usage is potentially due to the increase in metered connections over time.


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Figure 65: Annual metered usage and rainfall – Kyogle 2010 – 2018

The average annual maximum temperature in Kyogle is compared to metered usage in all customer sectors (Figure 66). The average of annual maximum temperatures was used for comparison as it is considered to be a realistic indicator of overall temperature for the purposes of this analysis. An increase in annual average

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Page 116

maximum temperatures since 2010 of 2.9°C was observed in the SILO data for Kyogle with the highest average annual maximum temperature of 34°C observed in 2014.

The general increase in metered usage across all sectors observed between 2010 and 2018 corresponds with the increase in maximum average temperature in the same period. Based on annual metered usage data and annual averages of maximum temperatures, there does appear to be a link between temperature and annual customer consumption, although the increase in metered connections may also contribute to this outcome.

Figure 66: Annual Metered Usage and temperature – Kyogle 2010 - 2018

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Raw water extracted from the Richmond River is not recorded. NRW is assumed to be 15% in future (refer Section 13.3.2). Annual dry year demand for each of the customer categories was calculated based on years with high temperatures and low rainfall along with high metered usage (2014 for the Institutional category, 2016 for the Public Parks category and 2018 for all other categories). The current average and dry year demand is shown in Table 46.

Table 46: Average and dry year demand – Kyogle water supply


(2018)

Average Dry year


Demand (ML/a)


Demand (ML/a)

Commercial 109 296 32.2 309 33.6

Industrial 38 778 29.5 1,040 39.5

Institutional 41 337 13.8 429 17.6

Public Parks 14 426 6.0 502 7.0

Residential sewered 1,272 145 18.4 150 190.8

Residential Un-sewered

56 292 16.4 286 16.0


NRW (15%) - 49.8 - 53.7


The forecast dry year unrestricted demand is 358 ML/a. Growth in metered connections for the residential sewered and commercial sectors is assumed to be 1.0% with zero growth in the other customer categories (refer Section 12.2.2). Figure 67 shows the raw water average and dry year demand forecast to 2048.


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Figure 67: Forecast dry year demand - Kyogle

13.5 Woodenbong/Muli Muli Water Supply

13.5.1 Water Production and Consumption

Council has provided data for bulk water supplied to Woodenbong and Muli Muli from Urbenville WTP (operated by Tenterfield Shire Council) between January 2001 and May 2019 (Figure 68). These data are taken from a bulk supply meter that supplies both Muli Muli and Woodenbong and there is no further breakdown of the metered data for the two locations. The meter was read weekly until 2013 and daily after that. Monthly and annual bulk water supply data (where data are available) are shown in Figure 69 and Figure 70.

Daily bulk supply fluctuates between 0 and approximately 490 kL/day, with an average daily bulk supply of 158 kL/day between July 2010 and June 2018. Total annual bulk water supply ranged from 48 ML to 61 ML with an annual average of 56 ML/a.

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Figure 68: Woodenbong Muli Muli daily bulk water supply

Figure 69: Woodenbong Muli Muli monthly bulk water supply

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Figure 70: Woodenbong Muli Muli annual metered water supply

Figure 71 shows the demand profile for Woodenbong/Muli Muli for the years 2010 - 2018. Residential consumption makes up an average of 52% of total consumption. The data for 2015 may be erroneous (refer Section 12.2.1).

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Figure 71: Woodenbong Muli Muli demand profile

Water production, consumption and non-revenue water are shown in Figure 72. Data on NRW from Figure 72 are shown in Table 47.

Table 47: Non-revenue water – Woodenbong/Muli Muli

Year Bulk supply (kL/a) Total metered demand (kL/a)

NRW (kL/a) % NRW

2012 52,475 29,893 22,582 43%

2013 56,984 25,346 31,638 56%

2014 58,114 32,025 26,089 45%

2015 59,967 47,796 12,171 20%

2016 62,790 36,030 26,760 43%

2017 57,426 43,524 13,902 24%

2018 56,856 38,503 18,353 32%

Average 57,802 36,160 21,642 38%

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Page 122

Figure 72: Bulk supply, metered consumption and NRW – Woodenbong/Muli Muli

13.5.2 Water Demand Analysis

Water Production

Annual bulk supply over the last seven years is compared to rainfall at Woodenbong in Figure 73. The maximum supply was experienced in 2015/16 (62.8 ML) with rainfall of 890 mm (lower than average rainfall, 987 mm). Metered consumption was low in that year. In 2014, rainfall was very low (680 mm) and supply was 58 ML.

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Page 123

Figure 73: Annual WTP production and rainfall – Woodenbong/Muli Muli 2011 – 2018

Metered usage

Annual metered usage for each customer category is compared to annual rainfall at Woodenbong between 2010 and 2018. The 2015 data provided was considered unreliable and has not been included in the demand analysis.

Analysis of rainfall and metered usage from the data provided show that there is no correlation between annual metered usage and annual rainfall. Some customer sectors show some correlations in usage and rainfall over some years but no conclusions can be drawn without additional data.

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Figure 74: Annual metered usage and rainfall – Woodenbong/Muli Muli 2010 – 2018

Annual average maximum temperature is compared to annual metered usage in Figure 75. An increase in annual average maximum temperatures since 2010 of 3.2°C was observed in the SILO data for the Woodenbong area with highest average annual temperature of 32°C observed in 2014.

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Page 125

The general increase in metered usage across all the majority of sectors observed between 2010 and 2018 corresponds with the increase in maximum average temperature in the same period. Based on annual metered usage data and annual average maximum temperatures there does appear to be a linkage to customer consumption, although the increase in metered connections may also contribute to this outcome.

Figure 75: Annual metered usage and temperature – Woodenbong/Muli Muli 2010 – 2018

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Page 126


NRW is assumed to be 38% (refer Section 13.3.2) Annual dry year demand for each of the customer categories was calculated based on years with high temperatures and low rainfall along with high metered usage (2016 for the Institutional category and 2017 for all other categories). The current average and dry year demand is shown in Table 48.

Table 48: Dry year demand – Woodenbong/Muli Muli water supply


(2018)

Average Dry year


Demand (ML/a)


Demand (ML/a)

Commercial 49 289 14.1 317 15.5

Industrial 7 69 0.5 97 0.7

Institutional 18 230 4.1 303 5.4

Public Parks 1 600 0.6 758 0.8

Residential sewered 136 98.9 13.4 103 14.0

Residential un-sewered

25 240 6.0 256 6.4


NRW (38%) - 23.8 - 26.3


The current dry year unrestricted demand is 69.1 ML/a. Growth in metered connections for the residential sewered and commercial sectors is assumed to be 0.75% with zero growth in the other customer categories (refer Section 12.2.2). Figure 76 shows the raw water average and dry year demand forecast to 2048.

Figure 76: Forecast average and dry year demand – Woodenbong/Muli Muli

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Page 127

13.6 Water Demand - Unserviced Areas

The available data on current and future population in each of the unserviced villages is given in Section 12.4. Recent investigations (Public Works Advisory, 2018) into the provision of a water supply for Tabulam have assumed that the ultimate number of residential tenements in Tabulam (once the sewerage system is constructed) will be 120 with a peak demand of 1,200 L/day/tenement (144 kL/day total demand). Additional allowance for non-residential demand will be required.

The nearby Aboriginal community of Jubullum is also to be considered during the investigation of options for the Tabulam water supply. Jubullum is already serviced by an unfiltered, reticulated water supply with water sourced from the Rock River tributary of the Clarence River which flows into the Clarence from the south west of Tabulam. This water supply is currently owned by the Jubullum community and services only that community. The scheme is operated by contractors through the NSW Government’s Aboriginal Communities Water and Sewerage Program and issues with the security and quality of supply have been identified. Council has made a commitment to investigate the possibility of a joint water supply with Jubullum as part of the investigation works for the Tabulam water supply project.

Demand data for the other villages has not been estimated.

13.7 Sewerage System Flows

13.7.1 Bonalbo Sewerage System

Sewerage system flows are not metered at the pumping stations. Data on Bonalbo STP inflow and outflow are available from January 2009 to June 2018. Graphs of STP flows and rainfall (measured at the Bonalbo Post Office BOM site) are provided in the following figures.

Figure 77: Bonalbo STP inflow, outflow and rainfall (daily) – January 2009 to June 2018

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Page 128

Figure 78: Bonalbo STP inflow, outflow and rainfall (monthly)

Figure 79: Bonalbo STP inflow and rainfall (annual)

The above figures demonstrate a significant increase in STP inflow with rainfall.

Since November 2015, all effluent has been reused with no discharge to Peacock Creek.

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A summary of the inflow data is provided in the following table. The average dry weather flow has been calculated by removing the 7 days of flow after significant rainfall (greater than 10mm in 7 days) has occurred.

Table 49: Bonalbo STP inflows

Year STP Inflow (ML/a)

Rainfall (mm) ADWF (kL/d) PDWF (kL/d) PWWF (kL/d)

2010 29.7 755 Below average 64.4 121 1,261

2011 45.3 1,331 Very high 86.1 570 1,303

2012 46.5 1,298 Very high 98.2 981 1,054

2013 40.5 1,105 Above average 58.6 146 1,421

2014 26.4 726 Below average 60.0 211 831

2015 35.7 1,024 Average 63.0 128 1,208

2016 32.3 942 Average 66.1 120 832

2017 36.0 961 Average 87.2 1,038 1,311

2018 33.1 899 Below average 61.7 189 1,142

Further analysis of dry weather flows during March - June 2018 (a dry period) is shown below. The dry period in April/May 2018 is considered to be most representative of the current ADWF (52 kL/d). The peak dry weather flow was experienced in October 2017 (1,038 kL/d). The maximum flow recorded was 1,421 kL/d in January 2013 following a period of sustained rainfall 179 mm in the previous 5 days. This equates to a wet weather ratio of 27 times ADWF.

Table 50: Bonalbo STP inflows

Period No. days in dry period

Rainfall in dry period (mm)

ADWF (kL/d)

Comment

29/3/18 – 8/4/18 11 1.3 58 7.8 mm rainfall in previous week has increased flows.

16/4/18 – 10/5/18 25 10.8 52 No significant rain in previous week. Representative of dry weather flow.


The existing EP has been estimated from the measured sewer flows (ADWF) assuming each EP discharges 210 L/EP/day. The average EP served is 250. Using an occupancy ratio of 2.4 (from the 2016 Census data for Bonalbo Urban Centre/Locality) there are 104 ET served by the Bonalbo STP. The design loading assumed in the current DSPs is 240 L/EP/day which would equate to 220 EP (90 ET).

The Intensity, Frequency and Duration (IFD) analysis of rainfall at Bonalbo and selected monthly periods of rainfall and inflow data experienced during storm events are shown in the following figures.


Page 130

.

Figure 80: Intensity, Frequency, Duration Analysis of Rainfall – Bonalbo

Source: BOM (2015)


Page 131

Figure 81: Inflow variation during storm events

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Page 132

13.7.2 Kyogle Sewerage System

Sewerage system flows are not metered at the pumping stations. Data on inflow to Kyogle STP is available from July 2001 to June 2018. Data on Kyogle STP outflow is available since July 2009. Time series graphs of STP flows and rainfall at Kyogle are provided in the following figures.

Figure 82: Kyogle STP inflow and rainfall (daily) – July 2001 to June 2009

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Figure 83: Kyogle STP inflow, outflow and rainfall (daily) – July 2009 to June 2018

Figure 84: Kyogle STP inflow, outflow and rainfall (monthly)

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Page 134

Figure 85: Kyogle STP inflow, outflow and rainfall

The above figures demonstrate an increase in STP inflow with rainfall.

A summary of the inflow data is provided in Table 51. The average dry weather flow has been calculated by removing the 7 days of flow after significant rainfall (greater than 10 mm in the 7 days) has occurred.

Table 51: Kyogle STP inflows



2002 139 737 Very Low 313 1,422 3,741

2003 133 818 Below average 281 783 6,001

2004 262 1,145 Average 462 1,076 9,970

2005 261 965 Below average 604 1,251 11,601

2006 330 1,144 Average 661 1,108 9,460

2007 263 881 Below average 634 2,230 3,221

2008 434 1,513 Very high 685 2,378 13,263

2009 443 1,609 Very high 803 1,510 7,064

2010 330 970 Below average 697 1,397 9,836

2011 526 1,737 Very high 835 2,346 10,754

2012 440 1,467 Very high 756 1,811 11,662

2013 381 1,294 Above average 651 1,840 13,881

2014 245 819 Below average 581 1,216 5,959

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2015 329 1,299 Above average 610 1,006 11,237

2016 330 1,169 Average 684 1,715 8,567

2017 392 1,383 High 715 2,341 8,882

2018 299 1,010 Average 685 1,129 5,251

Further analysis of dry weather flows during the first half of 2018 (a dry period) is shown below. The dry period in January 2018 is considered to be most representative of the current ADWF (592 kL/d). The peak dry weather flow was experienced in June 2011 (2,346 kL/d). The maximum flow recorded was 13,881 kL/d in February 2013 following a period of sustained rainfall 260 mm in the previous 10 days. This equates to a wet weather ratio of 23 times ADWF.

Table 52: Kyogle STP inflows



ADWF (kL/d)

Comment

10/1/18 – 28/1/18 19 3.4 592 No significant rain in previous week. Representative of dry weather flow.

11/2/18 – 16/ 2/18 6 6.7 658 Short period. 9.3 mm rainfall in previous week has increased flows.

19/2/18 – 20/2/18 2 0 581 Short period.

18/3/18 - 22/3/18 5 6.3 739 Short period. 9.2 mm rainfall in previous week has increased flows.

6/4/18 - 18/4/18 13 11.5 674 6.0 mm rainfall in previous week has increased flows.

2/5/18 - 8/5/18 7 0.7 649 Short period. 3.4 mm rainfall in previous week has increased flows.



The existing EP has been estimated from the measured sewer flows (ADWF) assuming each EP discharges 210 L/EP/day. The average EP served is 2,820. Using an occupancy ratio of 2.5 (from the 2016 Census data for Kyogle Urban Centre/Locality) there are 1,130 ET served by the Kyogle STP. The design loading assumed in the 2011 DSPs is 240 L/EP/day which would equate to 2,470 EP (990 ET).

The Intensity, Frequency and Duration (IFD) analysis of rainfall at Kyogle and selected periods of rainfall and inflow data experienced during storm events are shown in the following figures.


Page 136

Figure 86: Intensity, Frequency, Duration Analysis of Rainfall – Kyogle

Source: BOM (2015)


Page 137


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Page 138

13.7.3 Woodenbong/Muli Muli Sewerage System

Sewerage system flows are not metered at the pumping stations. Data on inflow to Woodenbong STP is available from August 2008 to June 2018. Data on Woodenbong STP outflow is not available for this whole time period. Time series graphs of STP flows and rainfall (measured at the Woodenbong BOM site) are provided in the following figures.

Figure 88: Woodenbong STP inflow, outflow and rainfall (daily) – January 2009 to June 2018

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Page 139

Figure 89: Woodenbong STP inflow, outflow and rainfall (monthly)

Figure 90: Woodenbong STP inflow, outflow and rainfall (annual)

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The above figures demonstrate an increase in STP inflow with rainfall.

A summary of the inflow data is provided in the following table. The average dry weather flow has been calculated by removing the 7 days of flow after significant rainfall (greater than 10mm in 7 days) has occurred.

Table 53: Woodenbong STP inflows



2010 29.0 879 Low 55.6 131 1,593

2011 32.0 1,521 Very high 63.4 183 726

2012 26.0 1,094 Average 54.5 145 409

2013 25.4 1,139 Above average 52.4 83 632

2014 19.8 680 Very low 48.7 71 586

2015 45.7 1,279 Above average 82.6 143 1,595

2016 39.5 890 Low 94.3 507 858

2017 45.4 1,155 Above average 90.6 185 1,038

2018 40.4 845 Low 85.8 312 730

Further analysis of dry weather flows during March - June 2018 (a dry period) is shown below. The dry periods in April/May 2018 and June 2018 are considered to be most representative of the current ADWF (85 kL/d). The peak dry weather flow was experienced in August 2015 (507 kL/d). The maximum flow recorded was 1,595 kL/d in May 2015 following a period of high rainfall 144 mm in the previous 3 days. This equates to a wet weather ratio of 19 times ADWF.

Table 54: Woodenbong STP inflows



ADWF (kL/d)

Comment

17/3/18 – 27/3/18 11 7 97 10 mm rainfall in previous week has increased flows.

4/4/18 – 8/5/18 35 22 83 9.6 mm rainfall in previous week although represents a long dry period.

16/5/18 – 8/6/18 24 10 104 High flows (211 – 312 kL/d) experienced.

14/6/18 – 30/6/18 17 4.7 87 9.6 mm rainfall in previous week although represents a long dry period.

The existing EP has been estimated from the measured sewer flows (ADWF) assuming each EP discharges 210 L/EP/day. The average EP served is 405. Using an occupancy ratio of 2.3 (from the 2016 Census data for Bonalbo Urban Centre/Locality) there are 175 ET served by the Woodenbong STP. The design loading assumed in the current DSPs is 240 L/EP/day which would equate to 350 EP (150 ET).

The Intensity, Frequency and Duration (IFD) analysis of rainfall at Woodenbong and selected monthly periods of rainfall and inflow data experienced during storm events are shown in the following figures.


Page 141

Figure 91: Intensity, Frequency, Duration Analysis of Rainfall – Woodenbong

Source: BOM (2015)


Page 142


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13.8 Biological and Nutrient Load

Inlet sewage quality data are shown in the following tables. The Bonalbo sewage inflows have a very high suspended solids (SS), nutrients and BOD load. All of the sewage flows are pumped directly to the STP in Bonalbo. The average strength of the Woodenbong sewage inflows is typical of domestic sewage with high SS and nutrient loads. The average strength of the Kyogle sewage inflows is typical of domestic sewage with slightly lower values for SS and BOD. Much of the sewage in Kyogle is pumped to the STP and has time to break down in the system.

Table 55: Bonalbo STP inflow quality (January 2009 - June 2018)

Inlet Sewage Quality Suspended Solids (SS)

Total Nitrogen (TN) Total Phosphorous (TP)

Biological Oxygen Demand (BOD)

Average strength (mg/L) 2,662 122 49 448

Average daily load (g/d) 242,872 11,049 4,295 42,835

Biological load (g/EP.d) 1 971 44 17 171

1. Using average EP = 250

Table 56: Kyogle STP inflow quality (August 2008 - October 2018)




Average strength (mg/L) 174 44.1 7.6 151


Biological load (g/EP.d) 1 49 12 2.1 41

STP design load (g/EP.d) 2 70 - - 60

1. Using average EP = 2,820 2. 2009 STP upgrade.

Table 57: Woodenbong STP inflow quality (August 2008 - October 2018)




Average strength (mg/L) 1,008 86.5 26.0 365


Biological load (g/EP.d) 1 307 21 7.1 91

1. Using average EP = 405.

13.9 Forecast STP Flows

Water efficiency measures (such as BASIX, Council pricing and natural propagation of water efficient appliances) are expected to reduce the discharge of sewage. Council is undertaking a sewer relining program to reduce inflow and infiltration. The forecast wet weather flows are expected to increase due to projected growth but also reduce due to the relining although the future flows are not quantifiable. No significant change in STP inflows is expected over time.


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13.10 Sewer Projections - Unserviced Areas

The design ADWF for each of the village sewerage schemes under consideration (based on maximum future growth) are listed below. There are no data on the sewer demand in other rural areas of the LGA.

Table 58: Maximum sewage flows for village sewerage schemes

Village Number of serviced lots Ultimate Population (EP) Total ADWF (kL/day)

Mallanganee 85 222 53.1

Tabulam 120 239 61.8

Wiangaree 73 188 45.0

Source: NSW Public Works (2014a)

14. EXISTING URBAN WATER SYSTEM CAPACITY AND PERFORMANCE

14.1 DWMS Review

A review of the DWMS was undertaken for the 2017/18 reporting period (Viridis Consultants, 2019). During the 2017/18 period, there was 100% compliance for all three schemes against the ADWG health-based guidelines. No E. coli detections were recorded during the reporting period for all schemes. Critical control points (CCPs) were reviewed and rationalised for the schemes as part of the 2018 DWMS review to be in line with ADWG and industry practice. CCPs in force during 2017-18 were generally being monitored, though some CCP breaches were not always reported to the PHU as required. Following the 2018 DWMS review, implementation of the updated CCPs and external reporting of critical limit breaches to the PHU will be undertaken. During the reporting period, one water quality complaint was received relating to dirty water at Fawcett Street, which Council investigated appropriately. The investigation did not reveal any secondary issues and the complaint may have been related to an internal plumbing issue. The complaint did not indicate of any systematic problem or potential health risk.

The Improvement Plan, which forms an integral part of the DWMS and demonstrates the practice of continual improvement was also reviewed. Council has implemented or closed out a number of actions. Several new items were added to the Improvement Plan following the 2018 DWMS review, as part of continual improvement. During the preparation of the Annual Report, the DWMS was also reviewed, with input from the PHU and DoI Water. An update to the DWMS documents (manual, CCPs, schematics, operational monitoring, risk register, incident management and Improvement Plan) is required based on the findings of the review. The DWMS documents will be updated as part of NSW Health support work and submitted to the PHU by Council.

14.2 Bonalbo Town Water Supply

14.2.1 Secure Yield and Forecast Demand

The volume of water in Petrochilos Dam since 2004 is shown in Figure 93. In recent times, the dam has been topped-up with water from the bore commissioned in 2007/08, as well as the original surface water extraction system from Peacock Creek.


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Figure 93: Petrochilos Dam – historical water volume

The most recent secure yield estimation for Bonalbo was reported in the NOROC Regional Bulk Water Supply Strategy (Hydrosphere Consulting, 2012). The secure yield of the Bonalbo water supply was estimated in 2005 as 52 ML/a based on the 5/10/20 rule. The secure yield needs to be reassessed in accordance with the current security of supply methodology and the upgrade works completed (particularly the bore supply and increase in transfer capacity from Peacock Creek).

The potential future supply (based on assumed 10% reduction in secure yield due to climate change by 2030 and a 20% reduction by 2060) and the forecast future demand for the Bonalbo water supply are shown on Figure 94. The combined extraction limit for Peacock Creek weir and Bonalbo bores is 116 ML/a. Based on the available data on secure yield, the Bonalbo water supply is considered to be secure for at least the next 30 years.

0

5

10

15

20

25

30

35

40

45

50

Volu

me

(ML)

Petrochilos Dam Volume


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Figure 94: Bonalbo future demand and supply forecasts

14.2.2 Treatment Capacity and Performance

Table 59 summarises Bonalbo raw water quality data available from 2011 - 2018. pH ranges from 6.1 to 8.5 with a median value of pH 6.9, which is typical for freshwater rivers. Turbidity varies widely with a range of 0.14 – 14.4 NTU, with a median value of 3.3 NTU indicating a range of conditions from very clear water to moderately turbid water most likely associated with high rainfall and flooding events. Apparent colour results ranged from 0 to 480 Pt-Co, with a median value of 93 Pt-Co.

Table 59: Analysis of Bonalbo WTP raw water quality from July 2011 - July 2018

Statistic pH Raw water turbidity (NTU) Apparent colour (HU)

Min 6.07 0.14 0

Max 8.49 14.4 480

Mean 6.9 4.0 107

Median 6.9 3.3 93

Standard Deviation 0.3 2.5 58

5th %ile 6.49 1.24 37

95th %ile 7.39 9.37 217

Count 404 409 406

The DWMS (Viridis Consultants, 2012) identifies microbiological hazards (i.e. bacteria, protozoa and viruses) as the highest risk (‘Extreme’) to drinking water quality. Turbidity and Colour, Iron and Manganese were identified as High level risks.

31.5

38.0

52.0

43.7

0

10

20

30

40

50

60Ra

w w

ater

dem

and

(ML/

a)

Historical demand Forecast dry year demand Secure yield


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Table 60 summarises Bonalbo clear water quality data available from 2011 - 2018. pH ranges from 5.39 to 11.46 with a median value of pH 6.75. Turbidity varies widely with a range of 0 – 7.6 NTU, with a median value of 0.20 NTU. Apparent colour ranged from 0 - 337 Pt-Co with a median value of 12 Pt-Co. Chlorine levels ranged from 0 - 32 mg/L. Total iron ranged from 0 – 3.3 mg/L with a median value of 0.06 mg/L and manganese ranged from 0 – 1.0 mg/L with a median value of 0.02 mg/L.

Table 60: Analysis of Bonalbo WTP clear water quality from July 2011 - July 2018

pH Turbidity (NTU)

Apparent colour (HU)

Total chlorine (mg/L)

Total manganese

(mg/L)

Total iron (mg/L)

Min 5.39 0 0 0 0 0

Max 11.5 7.56 337.00 32.0 1.00 3.30

Mean 6.95 0.27 14.7 2.24 0.04 0.12

Median 6.75 0.20 12.0 2.30 0.02 0.06

Standard Deviation 0.73 0.33 15.2 1.43 0.10 0.22

5th %ile 8.39 0.66 39.0 4.0 0.10 0.45

95th %ile 6.10 0.02 0.00 0.21 0.01 0.01

Count 2,512 2,461 2,507 2,031 295 297

ADWG limit 6.5 - 8.5 1.0 15 (true colour)

5 0.5 0.3

NSW Health data on reticulated water quality since 2013/14 are summarised in the following table and compared to ADWG guideline values. Water quality results for other parameters tested were within guideline values. Some results have exceeded the guideline values as shown in red in the table. Free chlorine results have often been below the minimum guideline value.

Table 61: Reticulated water quality - Bonalbo

Parameter Units ADWG (2011)

guideline value

Minimum Average Maximum No. of samples

% meeting guideline

value

E. coli cfu/100 mL

0 <1 13.5 24 278 99%

Fluoride mg/L 1.5 0.58 0.98 1.16 67 100%

Free chlorine mg/L 0.2 – 5.0 0 0.378 2.03 278 57%

pH - 6.5 – 8.5 7.12 8.14 9.23 289 91%

Total coliforms cfu/100 mL

0 1 15 70 277 94%

TDS mg/L 600 224 304 364 11 100%

Hardness as CaCO3

mg/L 200 61 110 138 11 100%

True colour HU 15 1 1.8 3 11 100%

Turbidity NTU 5 0.1 0.90 6.6 287 99.6%


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The 2017-18 review of the DWMS (Viridis Consultants, 2019) identified the need to undertake a comprehensive review of the risk register and update the DWMS with review findings. Improvement actions for Bonalbo include:

• High priority:

o Bonalbo – investigate reason for high turbidity reading from clear water sample point when plant is not running.

o Bonalbo – change filter backwash trigger to 0.5 NTU from 0.8 NTU.

o Bonalbo – investigate online monitoring for final treated water free chlorine from the reservoir (CCP 2 – mains sample location), including SMS alarming and plant shut down on low level chlorine.

o Bonalbo – investigate process optimisation to reduce precursors (organic load) for formation of disinfection by-products.

o Replace the CCPs pasted on the walls with the revised ones.

o Ensure that all operators implement CCPs, including recording/reporting requirements for critical limit breaches.

• Medium-low priority:

o Consider locking the Bonalbo reservoir hatch as an additional barrier.

o Consider developing a blue-green algae (BGA) management plan.

o Investigate a special monitoring project for testing of pesticides (monthly for one year) and radioactivity (one-off) for the Bonalbo scheme.

o Investigate water quality sampling of potential sources (for water security) through NSW Health special monitoring projects, as required.

Due to the major leak in the Bonalbo reservoir, the current peak demand is not representative of a real PDD.

The WTP has a capacity of 0.3 ML/d which has been exceeded in recent times. Based on the current dry year demand for Bonalbo residential (sewered) customers of 104 kL/a (1 equivalent tenement, ET), the systems supplies a current demand of 257 ET. Assuming a PDD of 1,400 L/ET/d, the PDD is 0.36 ML/d which is slightly above the design capacity of the WTP.

Table 62: Total dry year demand and ET – Bonalbo water supply

Customer category Dr year demand per connection (kL/a)

ET per connection

Connections (2018)

ETs (2018)

Commercial 202 1.9 17 33

Industrial 84 0.8 4 3

Institutional 183 1.8 15 26

Public Parks 328 3.2 2 6

Residential Sewered 104 1.0 181 181

Residential Un-Sewered 194 1.9 4 7

All connections - - 223 257

14.2.3 Distribution System Performance

Water supply system modelling has not been undertaken. The reservoir has a capacity of 0.9 ML (compared with the PDD of 0.36 ML/d).


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14.3 Kyogle Water Supply


The Kyogle water supply sources water from the Kyogle weir on the Richmond River. Water is also stored in a 200 ML off-stream storage. Emergency bores are also available.

The Kyogle Water Supply Yield Study (NSW Urban Water Services, 2014a) updated the secure yields for Kyogle’s water supply headworks system with the new off-stream storage and fishway at Kyogle weir. The study used a two staged approach to estimating yield of the headworks system: streamflow estimation and system behaviour modelling. The secure yield of the existing system has been estimated as 555 ML/a for the climate experienced over the last 120 years or so. For 1°C climate warming (assumed to occur at 2030) the study estimated the secure yield would reduce to 305 ML/a (0.55 climate change factor). Prior to the construction of the off-stream storage and weir modifications, the secure yield was assessed as 255 ML/a (decreasing to 135 ML/a with climate change).

The NSW Urban Water Services (2014a) assessment assumed that the water supply would be subject to a cease to pump rule when the flow is less than 15 ML/d at the Kyogle gauge. However, Kyogle Council is exempt from the cease to pump rule and the secure yield with no environmental flow or release requirement has been estimated as 1,365 ML/a for the historical climate and 751 ML/a for 1°C climate warming (NSW Urban Water Services, 2014a). The secure yield is therefore effectively restricted to the licence entitlement (564 ML/a).

The above estimates of secure yield from NSW Urban Water Services (2014a) exclude Kyogle’s groundwater bores which are used for temporary emergency supply. The two bores are available to provide additional water to meet water supply demands (bore 1 flow rate 1.5 L/s, bore 2 flow rate 3 L/s). If both bores can continuously deliver to their flow rates, the total bore supply is 142 ML/a (bore 1 supply 47.3 ML/a, bore 2 supply 94.6 ML/a). However each bore has a licence entitlement of 60 ML/a, restricting the available bore supply to 107.3 ML/a. There is no information on the sustainable yield of the bores. The bores are used to supplement the raw water extraction from the river to the off-stream storage. The assumed yield of the bores is 100 ML/a.

Figure 95 shows the observed historical water production in Kyogle and projected future dry weather demand versus secure yield for the existing system. The Kyogle water supply system is assumed to be secure until 2034.


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Figure 95: Projected future demand versus estimated secure yield for the existing system

14.3.2 Treatment Capacity and Performance

Table 63 summarises Kyogle raw water quality data available from 2011 - 2018. pH ranges from 6 to 8.5 with a median value of pH 7, which is typical for freshwater rivers. Turbidity varies widely with a range of 0 – 691 NTU, with a median value of 5 NTU indicating a range of conditions from very clear water to highly turbid water most likely associated with major flooding events. Turbidity over 50 NTU requires flocculation processes and associated chemical dosing rates at the WTP to be checked (and possibly adjusted) in accordance with the DWMS (Kyogle Council, 2012f). This level was exceeded on 5% of the samples.

True colour similarly displayed a broad range of results from 0 to 550 Pt-Co, with a median value of 136 Pt-Co. Colour over 50 Pt-Co requires flocculation processes and associated chemical dosing rates at the WTP to be checked and this level was exceeded for 94% of the samples, indicating a recurring issue in raw water quality that could influence effective performance of the water treatment process.

Table 63: Analysis of Kyogle WTP raw water quality from July 2011- July 2018

Statistic pH Turbidity (NTU) True colour (Pt-Co)

Min 6.0 0 0

Max 8.5 691 550

Mean 7.0 13 184

Median 7.0 5 136

Standard Deviation 0 29 136

5th %ile 6.8 1.41 48

95th %ile 7.8 49.3 550

358

450

255

1,365

751

355

1,465

851

684

0

200

400

600

800

1000

1200

1400

1600Vo

lum

e (M

L/a)

Historical demand Forecast dry year demand Secure yield Secure yield with bores

Water supply augmentation

Secure until 2034

Licence extraction limit - weir and bores:


Page 151

Statistic pH Turbidity (NTU) True colour (Pt-Co)

Count 2,521 2,398 2,541

1. Source: Kyogle WTP Operations Manual (Kyogle Council, 2012f)

The Drinking Water Management System (Viridis Consultants, 2012) identifies microbiological hazards (i.e. bacteria, protozoa and viruses) as the highest risk (‘Extreme’) to drinking water quality. Turbidity and colour were identified as ‘High’ level risks.

Table 64 summarises Kyogle clear water quality data available from 2011 - 2018. pH ranges from 6.0 to 8.9 with a median value of pH 7.5. pH exceeded the ADWG limit of 8.5 on 14 occasions accounting for approximately 0.6% of the samples. Chlorine levels ranged from 0.03 - 3.9 mg/L. Turbidity varies widely with a range of 0.03 – 80 NTU, with a median value of 0.43 NTU. Approximately 13% of samples measured turbidity over the ADWG limit of 1 NTU. From the available data, it appears that turbidity levels in clear water have improved in the last 2 years, but exceedances of guideline values still occur occasionally (April 2018). True colour limits were also frequently exceeded in clear water samples with range of 0 - 546 Pt-Co and a median value of 46 Pt-Co, the ADWG limit of 15 Pt-Co was exceeded 87% of the time.

Table 64: Analysis of Kyogle WTP clear water quality from July 2011 - July 2018

Data pH Chlorine (mg/L)

Residual chlorine (mg/L)

Turbidity (NTU)

True colour (Pt-Co) (HU)

Min 6.80 0.03 0.04 0.03 0.00

Max 8.70 1.13 1.22 50.00 546.00

Mean 7.52 0.42 0.49 1.80 34.61

Median 7.60 0.36 0.42 0.60 19.00

Standard Deviation 0.32 0.21 0.24 6.26 58.39

5th %ile 7.00 0.20 0.23 0.11 0.00

95th %ile 7.90 0.81 0.98 2.81 103.60

Count 250 246 246 228 249

ADWG limit 6.5 - 8.5 5 5 1 15

NSW Health data on reticulated water quality since 2013/14 are summarised in the following table and compared to ADWG guideline values. Water quality results for other parameters tested were within guideline values. Some results have exceeded the guideline values as shown in red in the table. Free chlorine results have often been below the minimum guideline value. Aluminium results have complied with guideline values since 2015.

Table 65: Reticulated water quality - Kyogle


guideline value


% meeting guideline

value

Aluminium mg/L 0.2 0.01 0.096 0.28 11 82%

E. coli cfu/100 mL

0 <1 <1 1 503 99.8%

Fluoride mg/L 1.5 0.11 0.904 1.3 67 100%



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guideline value


% meeting guideline

value

pH - 6.5 – 8.5 5.94 7.46 8.79 512 99%

Temperature °C 30 9.7 22.7 31.5 49 96%


0 1 9.9 25 501 93%

TDS mg/L 600 120 146 212 11 100%

Hardness as CaCO3

mg/L 200 53.8 79.0 90.3 11 100%

True colour HU 15 1 1.1 2 11 100%

Turbidity NTU 5 0.1 0.78 6.84 509 99.6%

The 2017-18 review of the DWMS (Viridis Consultants, 2019) identified the need to undertake a comprehensive review of the risk register and update the DWMS with review findings. Improvement actions identified for Kyogle include:

• High priority:



o Rectify issues with the fluoridation system at Kyogle WTP (in progress).

• Medium-low priority:

o Investigate options for improving turnover in Geneva reservoir.

o Consider locking the Geneva reservoir hatch as an additional barrier.

o Consider developing a blue-green algae (BGA) management plan.

o Investigate if an additional sampling point for the east side of Kyogle town can be added to the verification testing allocation.

o Consider adding an in-house operational monitoring point for the east side of Kyogle WTP to test for free chlorine, pH and turbidity.

o Investigate a special monitoring project for testing of pesticides (monthly for one year) and radioactivity (one-off) for the Kyogle scheme.

o Investigate water quality sampling of potential sources (for water security) through NSW Health special monitoring projects, as required.

The observed peak day treated water demand is 2.9 ML/d (Section 13.4.1) and the current capacity of Kyogle WTP is 4.5 ML/d. PDD is not expected to exceed the capacity of the WTP within the next 30 years. Based on the current dry year demand for Kyogle residential (sewered) customers of 150 kL/a (1 equivalent tenement, ET), the systems supplies a current demand of 2,030 ET (Table 66). The PDD is therefore 1,430 L/ET/d.


Page 153

Table 66: Total dry year demand and ET – Kyogle water supply

Customer category Dry year demand per connection (kL/a)

ET per connection Connections (2018)

ETs (2018)

Commercial 309 2.1 109 224

Industrial 1040 6.9 38 263

Institutional 429 2.9 41 117

Public Parks 502 3.3 14 47

Residential Sewered 150 1.0 1,272 1,272

Residential Un-Sewered 285 1.9 56 107

All connections - - 1,530 2,030


Water supply system modelling has not been undertaken. The reservoirs have a combined capacity of 5.9 ML (compared with the PDD of 2.9 ML/d).

14.4 Urbenville, Woodenbong and Muli Muli Town Water Supply


The UWMM water supply sources water from a weir on Tooloom Creek. The Urbenville, Woodenbong and Muli Muli Water Supply Yield Study (NSW Urban Water Services, 2014b) updated the secure yield previously estimated for Urbenville, Woodenbong and Muli Muli’s combined water supply headworks system. The secure yield of the existing system based on a useable river pond storage of 161 ML has now been estimated as 205 ML/a for the climate experienced over the last 120 years or so. For increased climate variability from 1°C climate warming it is estimated the secure yield is reduced to 135 ML/a.

Figure 96 shows the observed historical water demand of UWMM water supply (WTP outflow) and estimated secure yield for the existing system. Tenterfield Shire Council predicts that demand is not expected to increase significantly in future and that the Urbenville water supply is expected to be secure.


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Figure 96: Urbenville WTP outflow versus secure yield (including Urbenville, Woodenbong and Muli Muli)

Source: updated from Tenterfield Shire Council IWCM Strategy Plan (2019)

14.4.2 Treatment Performance

NSW Health data on reticulated water quality since 2013/14 in Woodenbong and Muli (supplied by the Urbenville WTP) are summarised in the following table and compared to ADWG guideline values. Water quality results for other parameters tested were within guideline values. Some results have exceeded the guideline values as shown in red in the table. Free chlorine results have often been below the minimum guideline value.

Table 67: Reticulated water quality – Woodenbong and Muli Muli


guideline value


% meeting guideline

value

E. coli cfu/100 mL

0 <1 29 89 485 99%

Fluoride mg/L 1.5 0.42 0.69 0.96 2 100%


pH - 6.5 – 8.5 7.4 8.1 8.9 483 93%


0 1 17 89 483 92%

Turbidity NTU 5 0 0.88 7.9 482 98%

205

135

175

0

50

100

150

200

250

2000 2005 2010 2015 2020 2025 2030 2035 2040 2045

Dem

and/

Yiel

d (M

L/a)

Year

Observed Annual Demand (ML/a) Secure yield (ML/a) Licence extraction limit (ML/a)

Secure yield

Licence extraction limit:


Page 155

The 2017-18 review of the DWMS (Viridis Consultants, 2019) identified the need to undertake a comprehensive review of the risk register and update the DWMS with review findings. Improvement actions identified for Woodenbong/Muli Muli included:

• High priority:

o Woodenbong/Muli Muli – maintain communication with TSC on process improvements/ optimisation for the Urbenville WTP.




Water supply system modelling has not been undertaken.

14.5 Asset Condition – Water Supply

Asset condition data from the asset register is summarised in the following figure. Most of the water supply assets are graded as “satisfactory” or better condition.

Figure 97: Condition and replacement value of water supply assets

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

- 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Repl

acem

ent v

alue

(201

8 $'

000)

Condition rating

Lines

Services

Points

Plant


Page 156

14.6 Unserviced Areas – Water Supply

Kyogle Council has been planning for a reticulated water supply for Tabulam since the 1950s. In the 1990s a group of private landowners joined together in providing a community operated raw water supply pumping out of the Clarence River. It is understood that this system uses a mobile pump and an unauthorised system of poly pipework to fill rainwater tanks when necessary. Currently, the water supply is managed by each resident. Dwellings have storage tanks and collect rainwater from roof tops. Testing of the water quality from the Clarence River between 1965 and 1973 indicate E. coli have been detected with high hardness, true colour and turbidity (Public Works Advisory, 2018).

In July 1972, a community meeting was held in the village for “the purpose of obtaining the views of property owners within the village as to whether a water supply scheme should proceed – particularly in relation to the financing of the annual costs of operating the scheme.” Records show that the majority of responses were not in favour of the water supply scheme at the time (Public Works Advisory, 2018). The recent consultation surrounding the Tabulam Vision of Village life master planning process showed a significant change in attitude with the provision of water supply and sewerage services high on the priority list for the community. Due to growth in regional areas and concerns with public health, Council will reinvestigate the installation of centralised water treatment and reticulation system for Tabulam.

There are no data on the performance of the other private water supplies in unserviced areas.

14.7 Bonalbo Sewerage System

The Environment Protection Licence for Bonalbo sewage treatment system specifies monitoring locations and concentration flow limits as shown below.

Table 68: Environment Protection Licence conditions – Bonalbo sewerage scheme

EPA No. Type/location 100 percentile concentration limit

Volume limit Monitoring requirements

1 Influent volume - - -

2 Discharge to waters BOD: 20 mg/L

Oil & grease: 10 mg/L

TSS: 30 mg/L

N (total): not specified.

P (total): not specified.

Faecal coliforms: not specified.

840 kL/d Monthly sample

3 Effluent quality - - Monthly sample

4 Discharge volume Daily

5 Reuse volume

The results of monitoring of the Bonalbo STP treated effluent at the licence monitoring report are provided below. The LOS target is compliance with the Environment Protection Licence. Non-compliance with the licence limits are highlighted red in the table.


Page 157

Table 69: Bonalbo STP – licence monitoring

Financial Year 100 percentile (mg/L)

TSS BOD O&G

2007 23 12 5

2008 30 7 5

2009 26 20 2

2010 45 10 4

2011 24 9 2

2012 84 15 2

2013 82 27 3

2014 70 20 2

2015 135 55 3

2016 144 25 2

2017 126 45 9

2018 91 34 3

2019 92 68 5

Licence limit 30 20 10

Recent issues with non-compliance (volume and concentration exceedances) are discussed in the following table.

Table 70: Details of Bonalbo STP non-compliances from EPA Annual Returns and EPA website

Year Result Licence Requirement

Discussion

2011/12

TSS concentration limit exceeded (1 value of 84mg/L)

100%ile limit of 30mg/L

Unknown, sample appears out of trend for site and may be due to sampling error.

Outlet flow limit exceeded on 3 occasions

840kL/day Heavy rain and storms

2012/13

BOD concentration limit exceeded on 2 occasions


Maximum result = 27 mg/L.

Unknown, result not consistent with trends

TSS concentration limit exceeded on 5 occasions



Primarily due to heavy rainfall and flood events, but also related to dry weather (low flows) and algae.


840 kL/day Heavy rain associated with 2 separate natural disaster events

2013/14 TSS concentration limit exceeded on 6 occasions



Algal bloom in reuse storage dam

2015/16 TSS concentration limit exceeded 100%ile limit of 30mg/L


2016/17 Inflow limit exceeded on 1 occasion

840 kL/day Heavy rain.


Page 158


Discussion

2017/18 Inflow flow limit exceeded on two occasions

840 kL/day Heavy rain.

2018/19 TSS concentration limit exceeded 100%ile limit of 30mg/L


2018/19 BOD concentration limit exceeded 100%ile limit of 20mg/L


The predicted low level of connection growth is not expected to affect the performance of the STP.

Design criteria for the Bonalbo STP are not available.

A comparison of the effluent flows with the EPL discharge limit is given in the following figure. The discharge limit has been exceeded on a number of occasions as discussed above.

Figure 98: Effluent flows and daily discharge limits – Bonalbo STP

14.8 Kyogle Sewerage System

The Environment Protection Licence for Kyogle sewage treatment system specifies monitoring locations and concentration flow limits as shown below.

0

200

400

600

800

1,000

1,200

1,400

1,600

1,800

2,000

STP

disc

harg

e to

cre

ek (k

L/da

y)

EPL discharge limit 840 kL/d


Page 159

Table 71: Environment Protection Licence conditions – Kyogle sewerage scheme

EPA No.

Type/location 90 percentile concentration limit

100 percentile concentration limit

Volume limit

Monitoring requirements

1 Discharge to waters. Effluent quality monitoring and volume monitoring

BOD: 10 mg/L


N (total): 10 mg/L

P (total): 2 mg/L

TSS: 15 mg/L


BOD: 20 mg/L


N (total): 40 mg/L

P (total): 5 mg/L

TSS: 30 mg/L


4,300 kL/d Fortnightly sample

Inline flow monitoring

2 Influent volume - - Inline flow monitoring

3 Effluent quality Fortnightly sample

The results of monitoring of the Kyogle STP treated effluent at the licence monitoring report are provided below (since upgrade of the STP in 2009). The LOS target is compliance with the Environment Protection Licence. Non-compliance with the licence limits are shaded red in the table.

Table 72: Kyogle STP – Licence Monitoring

Financial Year

90 percentile (mg/L) 100 percentile (mg/L)

TSS BOD TN TP O&G TSS BOD TN TP O&G

2010 29 4.8 19.4 4.42 2 126 11 20.5 6.2 3

2011 13.8 4 7.28 4.88 2 24 7 9.1 6.9 2

2012 10.2 3 8.86 2.65 2 14 3 12 3.5 2

2013 9.8 5 16.7 2.47 2 26 10 30 3.2 3

2014 23 4 8.58 5.77 2 38 6 9.2 7.9 2

2015 17.8 3 9.99 7.26 2 25 5 10 8.1 3

2016 14.8 10.3 12.5 2.85 2 23 21 17 3.4 3

2017 30.2 5.9 7.22 4.82 2 34 6 11 6.4 2

2018 19.9 6.5 9.06 1.73 2 34 13 10 2.7 2

Licence limit 15 10 10 2 5 30 20 40 5 10


Table 73: Details of Kyogle STP Non-Compliances from EPA Annual Returns and EPA website


Discussion

2011/12

Total Phosphorus concentration exceeded limit on 4 occasions

90%ile concentration limit of 2mg/L

90%ile result was 2.65 mg/L.

Dosing system failure

Daily volume limit exceeded on 5 occasions

4,300 kL/day High flow and infiltration rates during wet weather


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Discussion

2012/13

Daily volume limit exceeded on 9 occasions

4,300 kL/day Periods of heavy rain and flooding

Total Nitrogen concentration limit exceeded 5 of 14 tests (35% of time)



Periods of heavy rainfall, flooding and periods of lower performance for hydroponic wetland

Total Phosphorus concentration limit exceeded 6 out of 14 tests (42% of time)



Periods of heavy rainfall, flooding and periods of lower performance for hydroponic wetland

2013/14

Total Suspended Solids concentration limit exceeded (1 value of 38mg/L)

30 mg/L Cause not clear and is a once off event not associated with operations. Possibly due to algal growth. Prolonged dry period and discharge volumes greatly reduced.

Total Phosphorus annual load limit exceeded

Annual load limit of 600 kgTP/yr

Chemical dosing system off-line for reporting period due to on-site works.

Total Phosphorus concentration limit exceeded on a number of occasions


90%ile result was 5.77 mg/L. Maximum result was 7.9 mg/L.

Chemical dosing system off-line for reporting period due to on-site works.

2014/15 Mass load limit for phosphorous exceeded

600 kg PRP issued

Total Phosphorus concentration limit exceeded

90%ile concentration limit of 2 mg/L

PRP issued

Total Phosphorus concentration limit exceeded


PRP issued

Volume limit exceeded on nine occasions

4,300 kL/day Heavy rainfall and infiltration.

2015/16 Total Phosphorus concentration limit exceeded


Under investigation

TSS concentration limit exceeded twice


Total Nitrogen concentration limit exceeded


BOD concentration limit exceeded twice


BOD concentration limit exceeded


Mass load limit for phosphorous exceeded

600 kg


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Discussion

2016/17 Total Phosphorus concentration limit exceeded on a number of occasions


Sludge removal from ponds caused reactivation of phosphorous.

TSS concentration limit exceeded twice


Heavy rainfall and infiltration.

Volume limit exceeded on a number of occasions


2017/18 TSS concentration limit exceeded once


Algae in test area

Volume limit exceeded on two occasions


The issues with non-compliance with licence discharge limits are a key priority for Council. Council has taken steps to identify the causes of treatment deficiencies including a report examining the performance of the hydroponic wetland system (Pollution Reduction Program U2). The Kyogle Sewage Treatment Works Final Wetland Performance Report (Kyogle Council, 2013) concluded that the major factor impacting discharge water quality was the highly variable flows into the STP associated with wet weather. The report recommended that the main focus for the Kyogle sewerage system be the reduction of inflow and infiltration into the reticulation to minimise the impact of wet weather flows on the STP and its processes. Other factors associated with licence non-compliances include issues with the ingress of silt, grit and sediment into the STP affecting treatment processes and issues resulting in the carry-over of solids into the downstream treatment components. Council has installed inlet screening and a grit removal chamber and renewed valve work and pumping infrastructure to address these issues. During the works there have been some impacts on discharge water quality due to disruption of treatment processes. The last of the refurbishment works were completed at the end of 2014.

Despite the variable water quality results in the last few years, Kyogle Council (2013) reported that monitoring of the inlet and outlet water quality of the wetland system shows that this component of the treatment process has been performing well, with significant reductions in all pollutants through the system.

Consultation with EPA regarding the performance of the hydroponic wetland and the STP are on-going. Council is continuing to report on the progress of the stormwater inflow and infiltration abatement program including sewer main inspections and relining, illegal connections and flow monitoring in accordance with Pollution Reduction Program U1.

The EPL also includes a Pollution Reduction Program U3 to implement sludge management works including chemical dosing and sludge removal (by 30 December 2019). A new pond will be constructed from August 2019 to allow the existing ponds to be cleaned out.

Pollution Reduction Program U4 – telemetry and monitoring system upgrades was completed in February 2019. Levels of sewage in the pump stations can now be used to monitor sewer infiltration, estimate sewerage system flows and compare dry and wet weather flows. Data have been collected since March 2019 which will allow Council to target the catchments affected by infiltration in conjunction with the condition data to identify high priority areas for relining and infiltration reduction programs.

The predicted low level of connection growth is not expected to affect the performance of the STP. As discussed in Section 13.9, no significant change in STP inflows is expected over time. A comparison of ADWF for each year and the design ADWF for the 2009 STP upgrade is shown below.


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Figure 99: Comparison of STP inflow with design ADWF – Kyogle STP


Figure 100: Effluent flows and daily discharge limits – Kyogle STP

0

100

200

300

400

500

600

700

800

900AD

WF

(kL/

day)

Design ADWF = 750 kL/d

0

5,000

10,000

15,000

20,000

25,000

STP

Out

flow

(kL/

day)

EPL discharge limit 4,300

Average discharge 909 kL/d


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14.9 Woodenbong/Muli Muli Sewerage System

The Environment Protection Licence for Woodenbong sewage treatment system specifies monitoring locations and concentration flow limits as shown below.

Table 74: Environment Protection Licence conditions – Woodenbong sewerage scheme

EPA No. Type/location 100 percentile concentration limit

Volume limit Monitoring requirements

1 Discharge to waters BOD: 20 mg/L


TSS: 30 mg/L

N (total): not specified.

P (total): not specified.


840 kL/d Monthly sample

2 Effluent quality - - Monthly sample

3 Discharge volume Daily

4 Reuse volume

5 Reuse quality

The results of monitoring of the Woodenbong STP treated effluent at the licence monitoring report are provided below. The LOS target is compliance with the Environment Protection Licence. Non-compliance with the licence limits are highlighted red in the table.

Table 75: Woodenbong STP – licence monitoring

Financial Year 100 percentile (mg/L)

TSS BOD O&G

2007 53 23 5

2008 51 23 2

2009 83 18 2

2010 50 13 2

2011 28 6 2

2012 41 7 2

2013 49 17 5

2014 29 10 2

2015 21 3 4

2016 30 12 4

2017 16 4 2

2018 33 10 2

2019 24 15 2

Licence limit 30 20 10


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Table 76: Details of Woodenbong STP non-compliances from annual returns and EPA website


Discussion

2011/12

TSS concentration limit exceeded (1 value of 41mg/L)

100%ile limit of 30 mg/L

Period of heavy rain during natural disaster event.


840 kL/day Rainfall on STP ponds and channel and/or poor meter calibration

2012/13

TSS concentration limit exceeded on 1 occasion



Heavy rainfall combined with algal growth in tertiary ponds.


840 kL/day Periods of heavy rainfall associated with natural disaster events.

2013/14 TSS concentration limit exceeded on 6 occasions



2015/16 TSS concentration limit exceeded on 1 occasion



2016/17 Outlet flow limit exceeded on 3 occasions

840 kL/day High rainfall.

2017/18 TSS concentration limit exceeded on 1 occasion


High rainfall.

The predicted low level of connection growth is not expected to affect the performance of the STP.

Design criteria for the Woodenbong STP are not available.



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Figure 101: Effluent flows and daily discharge limits – Woodenbong STP

14.10 Asset Condition - Sewerage

Asset condition data from the asset register is summarised in the following figure. Most of the sewerage assets are graded as “satisfactory” or better condition. Some of the pipes are graded as poor or very poor and require renewal.

0

500

1,000

1,500

2,000

2,500

3,000

STP

Out

flow

(kL/

day)

Average discharge 106 kL/d

Licence discharge limit 840 kL/d


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Figure 102: Condition and replacement value of sewerage assets

14.11 Recycling Systems

14.11.1 Bonalbo STP Reuse System

Tertiary treated effluent from Bonalbo STP is reticulated to the nearby school agricultural plots and the golf course where it is used to irrigate fairways and tees. Historical reuse water quality monitoring data (faecal coliforms in the reuse dam) are available from November 2000 to June 2018. The EPL does not specify quality requirements for reuse water. There are no data available on the sustainability performance or future loads and reuse flows.

Table 77: Reuse water quality – Bonalbo STP

Data Faecal coliforms (cfu)

Minimum 1

10th percentile 4

Median 64

90th percentile 7,230

Maximum 31,900

Number of results 171

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

- 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Repl

acem

ent v

alue

(201

8 $'

000)

Condition rating

Lines

Services

Points

Plant


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14.11.2 Kyogle STP Reuse System

Treated effluent from the Kyogle STP is partially reused via the hydroponic wetland and the discharged effluent flows via a storage dam on the adjacent property where it is used to irrigate grazing pasture and crops when required. This same dam also provides stormwater detention and reuse from a small portion of the Kyogle urban area, as well as currently undeveloped land which is the site of a future industrial estate. The water is used for irrigation from the site known as “Vary’s Dam”. However, this site is downstream of the licenced discharge point for the Kyogle sewerage system and as such the EPL does not specify quality requirements for reuse of this water. There are no data available on the sustainability performance or future loads and reuse flows as the reuse patterns from Vary’s Dam are ad hoc and opportunistic and not critical to the performance of the sewerage system.

14.11.3 Woodenbong STP Reuse System

Tertiary treated effluent from Woodenbong STP is reticulated to the nearby school agricultural plots and golf course. Historical reuse water quality monitoring data (faecal coliforms in the reuse dam) are available from October 2002 to October 2014. Historical reuse water quality monitoring data (faecal coliforms in the reuse dam) are available from November 2000 to June 2018. The EPL does not specify quality requirements for reuse water. There are no data available on the sustainability performance or future loads and reuse flows.

Table 78: Reuse water quality – Woodenbong STP

Data Faecal coliforms (cfu)

Minimum 1

10th percentile 2

Median 20

90th percentile 688

Maximum 5,150

Number of results 171

14.11.4 Urban Stormwater Reuse

The only stormwater reuse (apart from household rainwater tanks) is the irrigation of combined treated effluent and stormwater runoff from the Kyogle STP reuse dam and the stormwater dam located within the golf course at Bonalbo. Objectives and performance targets have not been specified for these stormwater reuse systems.

14.12 Unserviced Areas - Sewerage

Most of the villages within the Kyogle Council area are not sewered and rely on Onsite Sewage Management Systems (OSMS) as discussed in Table 9. However, in many of the un-sewered villages, problems with the OSMS have been evident for some time. In the past, Council has had some difficulty requiring home owners to rectify failing systems. This is primarily due to the costs involved to design a suitable system to operate adequately within the constraints of many allotments. The majority of difficulties involve effluent “disposal” related to include small lot size, density of adjoining development, unsuitable soil types and high water tables. Due to difficulties with compliance and limited resources available for regulation, repairs or upgrades of failing systems in the villages are difficult to enforce (Kyogle Council, 2009b).

In 2009, the total number of OSMS within the LGA was 2,829 with approximately 23% (630) in the villages and the remainder in rural areas. Overall, of those inspected by Council, 48% of systems were classified as having a major failure in 2009. The highest risk villages were found to be Mallanganee, Old Bonalbo, Tabulam and Wiangaree (Kyogle Council, 2009b).


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A 2006 audit of on-site sewage management systems in Wiangaree (Kyogle Council, 2006) found public health and environmental risks attributed to odours, potential contamination of private water supply bores, contamination of a natural lagoon which overflows during rainfall events to the Richmond River upstream of Kyogle weir and unauthorised use of greywater. A 2010 report on the surface and groundwater quality in Wiangaree (Brown, M., 2010) studied the impact of on-site wastewater management, the extent of nutrient and microbial pollution and the cumulative effect on surface water bodies and found:

• Significant pollution of the groundwater with nitrogen, phosphorous and pathogen indicators with concentration of contaminants greatest in shallow aquifer and village bores; and

• Nutrient pollution in all surface waters with high concentrations of nitrogen, phosphorous and chlorophyll-a, eutrophication of the lagoon and high pH in the Richmond River.

Council has investigated the possibility of providing reticulated sewerage systems to service the villages of Wiangaree, Old Bonalbo/Joe’s Box, Mallanganee and Tabulam. The most feasible option for each village was found to be on-site treatment and off-site polishing and disposal as follows (NSW Public Works, 2014):

• Use of on-site treatment for each house using either existing or new septic systems, installed close to each home;

• Connection of each on-site system to a sewer collection system and transfer of the collected sewage waste to a central off-site polishing and disinfection system; and

• Disposal of the treated effluent by land application on local pastures, sporting fields or golf courses with possible wet weather/emergency discharge to local waterways. These centralised systems require further investigation to confirm the feasibility of the treatment and disposal methods.

Strategic Master Plans for each village were developed in 2017/18 under Councils Visions of Village Life process. Community consultation and surveys were used to assess each communities’ priorities and focus areas. The villages of Tabulam, Wiangaree and Mallanganee rated the sewer reticulation systems as a high priority to improve the village amenities, economic growth and environmental and public health. The village of Old Bonalbo did not rate the provision of a sewerage system as a high priority and the nature of the soils in Old Bonalbo can provide for sustainable on-site sewerage systems in the long term and as such it is not proposed to be sewered.


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REFERENCES

ABS (2014) 2011 Census QuickStats http://www.abs.gov.au/websitedbs/censushome.nsf/home/quickstats?opendocument&navpos=220 Accessed 21/1/15

Brown, M (2010) Rural village water quality assessment: Wiangaree, northern New South Wales. Integrated Project prepared as partial fulfilment of the requirements of the Bachelor of Applied Science (Environmental Resources Management), Southern Cross University

Bureau of Meteorology ((BOM) (2015) Rainfall IFD Data System. http://www.bom.gov.au/water/designRainfalls/ifd/ accessed April 2015

David Ardill and Associates (2002) Kyogle Council Urban Stormwater Management Strategy

DPI Water (2016) Water Sharing Plan for the North Coast Fractured and Porous Rock Groundwater Sources: Background document

DPI Water (2017) 2015-16 NSW Water Supply and Sewerage Benchmarking Report.

DPWS (1998b) Urbenville-Woodenbong Water Supply Augmentation Strategy Report

Hydrosphere Consulting (2013a) Northern Rivers Regional Bulk Water Supply Study prepared for NOROC

Hydrosphere Consulting (2013b) Northern Rivers Regional Bulk Water Supply Strategy – Interim Report 2 – Long-Term Water Resources and Demand

Kyogle Council (2005) Water Services Drought Management Plan

Kyogle Council (2006) Kyogle Council On-Site Sewage Management Systems - Audit Report Wiangaree.

Kyogle Council (2008). Kyogle Sewage Treatment Works Augmentation 2008: Information to accompany application to the Department of Water and Energy for financial assistance under the Country Towns Water Supply and Sewerage Program.

Kyogle Council (2009a) Kyogle Council Liquid Trade Waste Policy

Kyogle Council (2009b) On-Site Sewage Management Systems (OSMS) in Un-Sewered Villages. Report prepared for Water and Waste Committee meeting, June 2009

Kyogle Council (2009c) Report to Council – Stormwater and Flood Management

Kyogle Council (2010) Kyogle Council Local Growth Management Strategy

Kyogle Council (2012a) Drinking Water Management System – Kyogle Council. Prepared for Kyogle Council by Viridis Consultants Pty Ltd.

Kyogle Council (2012b) Asset Revaluations 2012 - Water Supply, Sewerage and Stormwater, Version 2, October 2012.

Kyogle Council (2012c) Kyogle Water Treatment Plan Operations Manual, Draft November 2012.

Kyogle Council (2016) Community Strategic Plan 2016-2026

Kyogle Council (2018a) Kyogle Council Water Supply Asset Management Plan

Kyogle Council (2018b) Kyogle Council Sewerage Services Asset Management Plan

Kyogle Council (2018c) Kyogle Council Stormwater Asset Management Plan

MC Environmental Consulting, (2011) Kyogle Council Development Servicing Plan 1: Kyogle and villages water supply, sewerage and stormwater services


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MWH (2006) Kyogle Integrated Water Cycle Management Strategy Study, Final Report

MWH (2010) Kyogle Water Supply Augmentation Concept Development Report

Northern Rivers Water Group (2015) Regional Demand Management Plan

NSW Department of Commerce (2005) Bonalbo Long Term Water Supply and Drought Strategy

NSW Department of Industry (2019a) Integrated Water Cycle Management Strategy Check List – February 2019.

NSW Department of Industry (2019b) Kyogle Council Water Supply and Sewerage Planning Data Set.

NSW Government (2014) NSW Population and housing projections.http://www.planning.nsw.gov.au/en-au/deliveringhomes/populationandhousingprojections.aspx, accessed 13/5/14

NSW Ministry of Energy and Utilities (2003) Kyogle Integrated Water Cycle Management Strategy. Part 1: Concept Study – Draft

NSW Office of Water (2009). Report card for the Kyogle Area Water Source in the Water Sharing Plan for the Richmond River Area Unregulated, Regulated and Alluvial Water Sources.

NSW Office of Water (2010). Water Sharing Plan for the Richmond River Area Unregulated, Regulated and Alluvial Water Sources — Background document.

NSW Office of Water (2012a) 2010-11 NSW Water Supply and Sewerage Performance Monitoring Report

NSW Office of Water (2012b) 2010-11 Water Supply and Sewerage NSW Benchmarking Report



NSW Office of Water (2013c) NSW Floodplain Harvesting Policy



NSW Office of Water (2014c) 2012-13 Kyogle Council TBL Water Supply and Sewerage Performance Reports

NSW Office of Water (2014d) Kyogle Council Water Supply and Sewerage Planning Data Set

NSW Office of Water (2014e) Report card for the Peacock Creek Water Source in the Water Sharing Plan for the Clarence River Area Unregulated, Regulated and Alluvial Water Sources.

NSW Office of Water (2014f) Report card for the Tooloom Creek Water Source in the Water Sharing Plan for the Clarence River Area Unregulated, Regulated and Alluvial Water Sources.

NSW Office of Water (2015a). Flow Statistics Report for Richmond River at Kyogle, http://realtimedata.water.nsw.gov.au/water.stm accessed 25/3/15 accessed 25/3/15

NSW Office of Water (2015b). Flow Statistics Report for Peacock Creek at Bonalbo, http://realtimedata.water.nsw.gov.au/water.stm accessed 25/3/15

NSW Office of Water (2015c). Flow Statistics Report for Clarence River at Tabulam, http://realtimedata.water.nsw.gov.au/water.stm accessed 25/3/15

NSW Office of Water (2015d). Water Sharing Plan for the Clarence River Unregulated and Alluvial Water Sources 2015 (Draft).

NSW Office of Water (2016) 2015/16 Water Supply and Sewerage Benchmarking Report.


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NSW Public Works (2013) Dam Safety Emergency Plan for Bonalbo (Petrochilos) Dam

NSW Public Works (2014) Final Summary Report on Feasibility of Sewering the Villages of Mallanganee, Old Bonalbo, Tabulam and Wiangaree

NSW Urban Water Services (2014a). Kyogle Water Supply Yield Study. Prepared on behalf of Hydrosphere Consulting for Kyogle Council

NSW Urban Water Services (2014b). Urbenville, Woodenbong and Muli Muli Water Supply Yield Study. Prepared on behalf of Hydrosphere Consulting for Kyogle Council

Public Works Advisory (2018) Tabulam Water Supply Background Report, November 2018.

Ryder, D., Mika, S., Richardson, M., Burns, A., Veal, R., Schmidt, J. and Osborne, M. (2014). Clarence Catchment Ecohealth Project: Assessment of River and Estuarine Condition 2014. Final Technical Report to the Clarence Valley Council. University of New England, Armidale. 225 pp.

SILO (2014) Climate data online, http://www.bom.gov.au/climate/data/stations/ accessed 16/7/14

Viridis Consultants (2019) DWMS Annual Report 2017-18.

Water Systems (2008). Bonalbo Water Treatment Plant General Details Sludge Lagoons: Drawing No. P344-020. Prepared for Kyogle Council.


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GLOSSARY AND ABBREVIATIONS

ADWF Average dry weather flow

ADWG Australian Drinking Water Guidelines

AHD Australian Height Datum is a geodetic datum for altitude measurement in Australia. According to Geoscience Australia, "In 1971 the mean sea level for 1966-1968 was assigned the value of 0.000m on the Australian Height Datum at thirty tide gauges around the coast of the Australian continent”.

BASIX SEPP Building Sustainability Index

DCP Development Control Plan

DEUS Department of Energy Utilities and Sustainability, now NSW Office of Water.

DWMS Drinking Water Quality Management System

EP Equivalent population

EPA Environment Protection Authority

EPL Environmental Protection Licence

ET Equivalent tenement

Greywater Any domestic wastewater produced, excluding sewage

IWCM Integrated Water Cycle Management

LEP Local Environmental Plan

LGA Local Government Area

LOS Levels of Service

LWU Local Water Utility

OMA Operating cost

OSSM On-site Sewage Management

PDWF Peak dry weather flow

PRG Project Reference Group

PRP Pollution Reduction Program

PS Pump Station

PWWF Peak wet weather flow

Reticulated Sewage System Sewage piped to a centralised sewage treatment plant for treatment and disposal.

SBP Strategic Business Plan

Secure Yield The water demand that can be expected to be supplied with only moderate restrictions during a significantly more severe drought than has been experienced since about 1895 (from when generally reliable rainfall records are available). It has been argued that the definition of Secure Yield in effect allows meeting demand with moderate restrictions through a severe drought akin to a ‘1 in 1000 year’ drought.

SEPP State Environmental Planning Policy

STP Sewage Treatment Plant. Raw sewage is collected from homes and businesses and transported via a network of pipes and pump stations to the sewage treatment plant, a centralised system for treatment and disposal.

TAMP Total Asset Management Planning

Telemetry The measurement of data at a remote source and transmission of the data (typically by radio) to a monitoring station.

Turbidity A measure of the amount of light-attenuating particles in a water body.

WSP Water Sharing Plan

WSUD Water Sensitive Urban Design

WTP Water Treatment Plant


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APPENDIX 1: IWCM STRATEGY CHECKLIST – PARTS 2-7


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Council is preparing an IWCM Strategy in accordance with the Integrated Water Cycle Management Strategy Check List – July 2014 (NSW Office of Water, 2019a). Items 2 to 8 of the checklist are addressed in this IWCM Issues Paper (refer Section 1 and Table 79). Data adequacy is discussed in Section 5. Items 1 and 9 to 17 of the checklist will be addressed in the IWCM Strategy.

Table 79: IWCM Strategy – check list requirements 2-7

Outcome Achieved Data available

2. Introduction

A. Includes the study area context (e.g. map of the local government area (LGA) showing the cities, towns and villages, etc.).

B. Includes a table of all the urban centres/areas (i.e. towns and villages) within the study area indicating the nature of the water supply and sewerage service provision.

Part A, Section 2.

C. Includes a summary table of current IWCM strategy measures and the status of outcomes.

D. Includes with evidence any changes to the assumptions underpinning the current IWCM strategy, the outstanding issues, the new and emerging issues, etc. with respect to the urban water services.

Part B, Section 9 and Appendix 2.

3.1. Operating Environment Compliance

A. The regulatory and contractual compliance requirements are clearly defined and linked to objectives, performance standards and performance indicators.

B. Includes all issues from the operating environment compliance situation analysis.

Part B, Section 10.

3.2. Levels of Service (LOS)

A. Target LOS are clearly defined and linked to objectives, performance standards and performance indicators, and have taken account of your existing SBP.

B. Includes all issues from the LOS situation analysis.

C. Any warranted changes to the Target LOS are identified and explained.

D. Community consultation is essential on the proposed levels of service (LOS) in order to negotiate an appropriate balance between LOS and the required Typical Residential Bill.

LOS refer generally to operational levels of service such as aesthetic drinking water quality, water pressure, response times etc. Regulatory requirements such as complying with your utility’s water extraction licence, sewerage system licence and dam safety and workplace health and safety requirements cannot be negotiated down by a water utility. Similarly, utilities must meet the health related aspects of the Australian Drinking Water Guidelines 2011 (ADWG) such as microbiological and chemical water quality compliance.

Part B, Section 10.6

4. Description of Existing Urban Water Services Systems

For all serviced and unserviced towns and villages the existing water supply, sewerage and stormwater systems are described in detail including the following where practicable:

A. A map or aerial image of each urban centre (i.e. city, town or village) clearly showing the water supply and sewer serviced area boundary.

Part B, Section 11.2.

B. A schematic plan of each water supply system showing the headworks, treatment and pumping facilities, service reservoirs, trunk mains and reticulation and their capacities.

C. A brief description of the catchment characteristics (e.g., average annual runoff volume, land use, annual usage by all users, significant industries, etc.) from which water is drawn. Include as an appendix the relevant publicly available water catchment maps, score cards, etc.



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D. A brief description of each of the water supply assets/facilities including their characteristics, capacities, purpose, standby/emergency arrangements, water extraction/operating licence conditions (include licence conditions as an appendix) and the overall scheme control philosophy and communication system used for control and monitoring.


E. A schematic and a brief description of each water treatment process including the sludge and wastewater management practices.

F. A summary outline of your Category 3 trade waste discharges and reports whether trade waste policy, approvals and pricing, and reporting are in place.

Part B, Section 11.3.1.

G. A schematic plan of each sewerage system showing the hierarchy of the sewer pumping facilities, gravity catchments, treatment facilities, water recycling systems and their capacities.


Licences are available for download from the EPA website.

H. A brief description of each of the sewerage system assets/facilities including their characteristics, capacities, purpose, standby/emergency arrangements, overall scheme control philosophy and communication system used, discharge/operating licence conditions (include licence conditions as an appendix) and the receiving environment.

I. A schematic and a brief description of each sewage treatment process including the grit and biosolids management practices and capacity of key treatment process units.

J. A schematic and a brief description of each water recycling system and their capacities/area, the types of end use of water within the enterprises and the associated management practices and agreements.

K. A schematic plan of the urban area showing the urban stormwater sub-catchments including the urban stormwater harvesting and use systems, common detention/retention systems.


L. A brief description of the stormwater sub-catchments (i.e., land-use characteristics), the assets/facilities including their capacities, purpose, the overall scheme control philosophy, discharge/operating licence conditions and the receiving environment.

M. A summary outline of trend of key asset and financial performance indicators of the water and sewer assets and business respectively from the latest Valuation Report and Special Schedules 4 to 7 of your LWU’s annual financial statements including commentary of its appropriateness.

Part B, Section 10.5.2.

N. A summary of the current price signals such as typical residential bill (TRB), developer charges (DC), water usage charge per kL, the percentage of residential water supply revenue from usage charges, non-residential sewerage charge per kL, etc.


O. Summary of existing management systems used for assets, customer complaints/relationship, finance and its effectiveness in use by staff including status/completeness, level of integration, familiarity, etc..


5. 30-Year Population and Demographic Projection

For each service reservoir zone in each of your potable and non-potable water supply systems provide the following where practicable:

A. The number of existing connected properties (residential and non-residential) and assessments (since 1996) obtained using your LWU’s water customer billing database and reservoir zone layers (linked to Geographic Information Systems (GIS) where practicable).

B. An estimate of the existing unoccupied and seasonally occupied (e.g. holiday dwellings) connected residential properties obtained from sources such as the local real estate agent or Council staff or tourist information services or customer billing database or Australian Bureau of Statistics (ABS) C-data.



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C. An estimate of the connected permanent residential population including household size using ABS C-data.


D. For the non-residential sector the number of existing commercial, industrial, rural, and institutional, hospital, school, hotel/motel, public swimming pools, council premises, and urban public parks and gardens connections.


E. Nature of major water using and/or discharging industries. Part B, Section 13.1.

F. An estimate of the total number of existing and new beds in connected tourist premises (e.g. motels/hotels, cabins/caravans, etc.) obtained from sources such as the local real estate agent or Council staff or customer billing database or premise operators or ABS data.

Part B, Section 12.

G. An estimate of the vacant lots, lot yield from larger lots that are likely to be subdivided within the existing zoned urban areas, lot yield from redevelopment areas, and lot yield from the new release area(s) that are to be serviced by each reservoir {establish using the reservoir zone, cadastre and Local Environment Plan (LEP) zone layers (linked to GIS where practicable} and their timing and take-up rate. Provide a map and table summarising the development type with details in an appendix.

H. The number of existing (since 1996) and new connected residential and non-residential properties and assessments, and the permanent and peak population to be served by each reservoir for the next 30 years.

I. The number of existing (since 1996) and new connected residential and non- residential properties and assessments, and the permanent and peak population to be served by each scheme’s headworks for the next 30 years.

Part B, Section 12.

A detailed review of growth projections and potential development areas is required.


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For each sewer catchment (i.e., sewer pumping station and/or gravity) in each of your sewerage systems establish the following where practicable:

J. The number of existing connected properties (residential and non-residential) and assessments (since 1996) obtained using the LWU’s sewer/water customer billing database, ABS C-data and sewer catchment layers.

K. An estimate of the existing unoccupied and seasonally occupied (e.g. holiday dwellings) connected residential properties obtained from sources such as the local real estate agent or Council staff or tourist information services or customer billing database or ABS C-data.

L. The number of existing dwellings that are serviced with town water supply but not with town sewer system (i.e. on-site systems).

M. For the non-residential sector the number of commercial, industrial, rural, institutional, hospital, school, hotel/motel, public swimming pools, council premises and public toilet connections and an estimate of the equivalent tenements (ETs) involved.

N. The vacant lots, lot yield from larger lots that are likely to be subdivided within the existing zoned urban areas, lot yield from redevelopment areas, and lot yield from the new release area(s) that are to be serviced by individual sewer catchments and their timing and take-up rate.

O. The number of existing (since 1996) and new connected residential and non-residential properties and assessments, and the permanent and peak equivalent population (EP) and equivalent tenement (ET) to be served by each catchment for the next 30 years.

P. The number of existing (since 1996) and new connected residential and non-residential properties and assessments, and the permanent and peak equivalent population (EP) and equivalent tenement (ET) to be served by each scheme’s sewage treatment works for the next 30 years. A reliable measurement of existing EP from measured sewer flows may be used.

Q. For each unserviced urban centre/area provide existing and projected 30-year permanent and peak population and occupied properties.

Part B, Section 12.3 and Appendix 5.

A detailed review of growth projections and potential development areas is required.


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6. 30-Year Water Cycle Analysis and Projection

For each scheme’s potable and non-potable water supply headworks systems establish the following where practicable:

A. A time series graph showing the actual and corrected historical daily, monthly and annual production as well as annual consumption of potable and non-potable (if present) water.

B. The factors/trends (such as demographic, climatic, economic, lot size, water efficiency, restriction impacts, pricing, etc.) that have affected historic water production and consumption.

C. The volume of non-revenue water (NRW) [represented as L/connection/d]. This comprises real losses (mostly leakage), apparent losses (under-registration of customers’ meters and illegal use) and authorised unbilled water (e.g. mains flushing and firefighting).

D. The climatic and other factors/trends corrected unrestricted annual dry year demand per connected residential property.

E. The climatic and other factors/trends corrected unrestricted average annual residential water supplied per connected property.

F. The climatic and other factors/trends (e.g. reservoir effect, etc.) corrected unrestricted peak day demand per connected property.

G. The historical persistence of daily demand leading up to and after the peak day demand event.

H. The unrestricted annual and peak day water demands of each non-residential connection type with climatic and other factors/trend correction if possible. For the non-residential sector, the total water supplied should be recorded for each of commercial, industrial, rural, institutional, public parks and gardens and non-revenue water (NRW).

The following 30-year water demand projections taking account of the reservoir level analysis information, the impact of natural propagation of water efficiency, BASIX, water pricing and other current and planned LWU water efficiency measures:

I. Total unrestricted annual dry year demand aggregated from the residential and non-residential connections for sizing of headworks infrastructure such as a dam, etc.;

J. Total unrestricted annual average year demand aggregated from residential and non-residential connections for licensing and revenue requirements prediction; and

K. Total unrestricted peak day demand aggregated from residential and non-residential connections for sizing of water treatment works, pumping facility, etc.

Part B, Sections 13.3, 13.4 and 13.5.

A detailed demand forecast is required.

For each scheme’s potable and non-potable service reservoir zones establish the following where practicable:

L. The unit demands of connected residential property and of each non-residential connection type and NRW using the bulk flow meter/ pumping records and consumer meter records.

M. The total current peak and average day demands aggregated from the residential and non-residential connections for each reservoir zone.

N. The 30-year total unrestricted peak day demand aggregated from the residential and non-residential connections for each reservoir zone for sizing of reservoirs, distribution mains, booster pumping facility, etc.

O. Check that the water savings due to implementation of best-practice pricing (refer to Circular LWU11 of March 2011) and BASIX requirements have been accounted for in the annual and peak day demand projections.

P. Includes brief analysis of the impact of climate variability on the unrestricted annual and peak day demand projections.


Data are not available for each reservoir zone.


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Q. Lists all the unserviced urban centres/areas within the local government area or LWU’s area of operation and includes for each unserviced urban centre/area the projected 30-year peak day and annual demands aggregated from the residential and non-residential occupied properties.

Part B, Sections 12.4 and 13.6.

For each sewer catchment establish the following where practicable:

R. The actual and designed average dry and peak wet weather flows per ET and per EP using the consumer water meter records, SPS telemetry data and the sewer design manual. Include the dates, daily rainfall and the estimated ARI the actual per ET and EP flows were based on.

S. The current actual and design ADWF, PDWF and PWWF for each catchment aggregated from the residential and non-residential connections.

T. The 30-year projection of actual and designed ADWF, PDWF and PWWF for each catchment taking into account the impact from natural propagation of water efficiency, BASIX, water pricing and other current Council water efficiency and sewer flow management measures.

For each sewage treatment works system establish the following where practicable:

U. A time series graph showing the historical daily, monthly and annual sewage and effluent flows in conjunction with daily rainfall records.

V. The actual current per EP and ET average dry weather flow. A reliable measurement of existing EP from measured sewer flows may be used.

W. The actual ADWF, PDWF and PWWF over time (since 1996) using the historic flow analysis and data.

X. The 30-year projection of actual and design ADWF, PDWF, PWWF and annual effluent volume as a time series taking account of the catchment level analysis information, pumping capacities and the impact of natural propagation of water efficiency, BASIX, water pricing and other current and planned LWU water efficiency and sewer management measures.

Y. The actual current per EP biological and nutrient loads.

Z. The 30-year projection of biological and nutrient loads as a time series.

AA. Include a brief analysis of the impact of climate variability on peak wet weather flows using the location-specific intensity, frequency and duration of rainfall analysis available on the Bureau of Meteorology (BOM) website.


Sewerage system flow data are not available for each sewer catchment.

Sewerage system modelling has not been undertaken.

AB. Lists all the unserviced urban centres/areas within the local government area or LWU’s area of operation and for each unserviced urban centres/areas includes the projected 30-year ADWF.


For each Water/Effluent Recycling System establish the following where practicable:

AC. A time series graph (since 1996) showing the historical daily, monthly and annual usage in conjunction with daily rainfall records for each of the discharge or reuse pathways (urban use, reclaimed water, industrial, agricultural or discharge).

AD. The average per connected property and peak daily per connected property usage when used as reclaimed water for urban customers.

AE. The estimated 30-year daily and annual projection for each of the discharge and/or reuse pathway as a time series.

There are no data available on recycled water flows.

For each Urban Stormwater System establish the following where practicable:

AF. The current and 30-year projection of annual stormwater volumes for each of the discharge and/or urban stormwater harvesting and use pathways as a time series.

AG. The current and 30-year projection of annual biological and nutrient loads as a time series.

There are no data available on stormwater flows.


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7. Existing Urban Water System Capacity and Performance Assessment

For each Water Supply System the following outcomes are reported based on sound analysis:

A. Secure yield of existing headworks system undertaken in accordance with draft NSW Guidelines on Assuring Future Urban Water Security – Assessment and Adaption Guidelines for NSW Local Water Utilities.

B. Sustainable yield of groundwater sources that form part of the headworks system.

C. A time series graph showing the historical and projected annual unrestricted dry year demand super-imposed with the assessed secure yield or sustainable yield (if groundwater source) of the existing headworks system and licensed annual extraction volume. Includes commentary on the headworks ability to meet current and future demands and LOS.

D. A table summarising the historical raw water quality data of each supply source including a discussion on the variables that has an influence on the effective performance of the water treatment process to meet the LOS.

E. A table summarising the historical reticulated water quality data of each scheme including a comparison to the LOS target. Also include a brief discussion on the effectiveness of the treatment process, barriers and management systems in meeting the LOS target.

F. A time series graph showing the historical and projected peak day unrestricted demand super-imposed with the design/assessed capacity of the existing treatment works (including raw and treated water pumping facilities) and licensed daily extraction volume (if applicable). Includes commentary on the ability of the treatment works to meet current and future demands and LOS.

G. A summary showing the performance of the distribution system against the LOS targets under current and future demand scenarios. The details of the analysis may be included as an Attachment.


Groundwater yield data are not available.

Data on distribution system performance are not available.

H. A summary of the asset condition for each key class of assets from the latest Valuation Report including commentary on how current conditions meet Council’s and LWU’s stated objectives. If asset conditions are not available establish preliminary ratings for key assets in each facility.


For each Sewerage System the following outcomes are reported based on sound analysis:

I. A table showing the performance of each sewer catchment with respect to inflow/infiltration, pumping capacity, pump run time in dry and wet weather conditions, available storage at 4 hours of ADWF and odour/septicity potential assessed using the historical sewer pumping/bulk flow meter records obtained via Telemetry including a brief commentary on the potential performance with the future loads/flows and LOS targets.

Sewerage system flows are not monitored.

Sewerage system modelling has not been undertaken.

J. A table summarising the historical effluent quality data of each scheme including a comparison to the LOS target and discharge limits for the licence. Also include a brief discussion on the effectiveness of the treatment process, barriers and management systems in meeting the LOS target and discharge limits for current and future scenario.

K. A time series graph showing the historical and projected biological and hydraulic loads super-imposed with the design/assessed capacity of the existing treatment works and licensed daily discharge volume (if applicable) including commentary on the ability of the treatment works to meet current and future loads and LOS targets.

Part B, Section 14.7, 14.8 and 14.9.

L. Summary of the asset condition for each key class of assets from the latest Valuation Report including commentary on how current conditions meet Council’s and LWU’s stated objectives. If asset conditions are not available establish preliminary ratings for key assets in each facility.

Part B, Section 14.10 .


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For each Water/Effluent Recycling System the following outcomes are reported based on sound analysis:

M. A table summarising the historical data and showing the existing sustainability performance (e.g. nutrient, salt and hydraulic, etc.) against the compliance and/or LOS targets and a brief commentary on the potential performance with the future loads and flows.


There are no data available on the sustainability performance or future loads and reuse flows.

For each Urban Stormwater Harvesting and Use System the following outcomes are reported based on sound analysis:

O. A table showing its performance against the objectives and LOS targets.

No data available.

For each unserviced town/village include the following:

P. Assessment of performance of the existing water supply relating to environmental sustainability, public health and availability of supply (estimated and actual observed) during extended dry periods and during average rainfall years.

Q. Assessment of performance of the existing on-site sewage management systems based on LGA clause 68 inspections relating to environmental sustainability and public health.

R. A review with respect to the requirements in the Environment and Health Protection Guidelines: On-Site Sewage Management for Single Households and any other relevant guidelines, standards or policies including local geology and topography.



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APPENDIX 2: STATUS OF 2006 IWCM STRATEGY ISSUES AND ACTIONS


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The status of the IWCM issues and actions identified in the 2006 Kyogle IWCM Strategy is discussed in Table 80 and Table 81.

Table 80: Kyogle IWCM Strategy (2006) action plan status

Description Actions identified in 2006 Current Status

Water Source

Off stream storage and upgrade WTP (low cost option requiring restricted demand)

Further development of this concept required to determine site for off-stream storage and allow for design and construction works.

Water supply security at Kyogle was provided through the Kyogle water augmentation strategy. The project consisted of the following major components:

• Construction of a 200 ML off-stream storage dam to provide drought security and consistent raw water quality; and

• Modifications to the existing on-stream weir to provide fish passage to over 400 km of high quality upstream fish habitat.

WTP backwash water discharge to be addressed as a matter of priority. Treatment concept to be developed to allow for construction.

Modifications to the waste water disposal from the WTP to the sewerage system to eliminate discharge to river were completed in 2012.

Drought Management Plan to be reviewed particularly with respect to triggers for imposing of water restrictions. Level 1 Water Restrictions are expected to be permanently imposed.

Drought management plan has not yet been reviewed. Restrictions to be adopted consistent with other North Coast LWUs.

Investigation of existing WTP to assess the possible peak capacity of the plant and identify works required for refurbishment and improvements.

Upgrades to the existing WTP to meet future demands and ensure reliable water quality to meet the ADWG were completed in 2012.

Sewage Treatment

Secondary + nutrient removal + disinfection

Concept to be developed to detailed design stage to allow construction as soon as possible. Council to liaise closely with the Department of Environment and Conservation to develop concept to the point where detailed design can commence.

Project Specific Reference Group to be formed.

Kyogle STP upgrade was completed in 2011.

Inflow and infiltration reduction

Ongoing program of rehabilitation works and internal plumbing repairs based on detailed CCTV and smoke testing results.

CCTV inspection and sewer main relining program is ongoing.


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On-site systems Connection of remaining township residential properties to the sewer system.

Since 2006 a total of 7 separate projects have been completed providing sewerage extensions to service an additional 23 existing properties that were previously serviced by on-site sewerage systems or septic effluent pump out systems in Kyogle and Bonalbo. There are 2 properties remaining in the Geneva area that still require the extension of the system, and both are existing residential properties with a septic effluent pump out system.

Recycled Water

Dry weather non-contact irrigation/wetlands

Included as part of the "Sewage Treatment - Secondary + nutrient removal + disinfection" component above.

Effluent reuse has been implemented at Kyogle, Bonalbo and Woodenbong STPs. Recycled water management systems and irrigation management plans have not yet been prepared.

Greywater

Greywater (diversion) Review of NSW Health guidelines and Council policies to be undertaken to determine system standards and approvals process.

Council has included provisions in the DCP that utilise the NSW Guidelines for Greywater Reuse in Sewered, Single Household Residential Premises (2008). This allows property owners to implement grew water reuse in accordance with these external requirements.

Greywater (new development)

Development Control Plan and/or conditions of development consent to be reviewed to cover greywater systems on new development.

Rainwater

Mandatory tanks (new development)

Development Control Plan and/or conditions of development consent to be reviewed to require rainwater tanks as well as compliance with BASIX.

SEPP Building Sustainability Index (BASIX), 2004 was mandatory for regional NSW from 2005/06. Council cannot impose mandatory requirements in excess of BASIX and therefore recommendations relating to additional development requirements can only be entered into on a voluntary basis between Council and each individual developer.

Retrofit/rebate tanks (existing development)

Detailed rebate program to be established. Rebate program in place since November 2006 for rainwater tanks and rainwater utilisation.

Stormwater

Stormwater current initiatives

Stormwater revenue stream to be established to help fund both current and proposed initiatives.

A Stormwater and Flood Special Rate applies to developed property within the villages of Kyogle, Woodenbong, Wiangaree, Old Grevillia, Old Bonalbo, Bonalbo, Tabulam and Mallanganee


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WSUD (new development) Development Control Plan and/or conditions of development to be reviewed to ensure Water Sensitive Urban Design principles are followed for new developments and redevelopments.

Council adopted the Northern Rivers Local Government Development Design and Construction Manual which were recently been updated to include the Stormwater Drainage Handbook, incorporating the principles of WSUD across the region. The DCP was then developed to ensure that there was the requirement to meet certain criteria with regards to on-site detention and incorporating WSUD principles in industrial and commercial development, all using the regional manual as the primary specifications.

WSUD (new and key existing development)

As above, and investigation works required in each village to identify key stormwater improvement projects and formulate a program of works.

Council adopted the Kyogle Floodplain Risk Management Plan in 2009. This plan is mainly focussed on the village of Kyogle, but also provides some details of flooding and development control for the village of Wiangaree.

Since the commencement of the additional revenue stream for stormwater management, there have been funds available to improve the stormwater systems to address some of these issues. Some other key areas have been identified for improvements based on a history of known problems.

Council to review revenue stream to source funding levels required to provide desired levels of service.

Council applied to IPART for a special rate variation to increase the stormwater management charge in December 2014.

Conservation

Current initiatives (incl. BASIX)

Continue current conservation activities. Council is continuing its water conservation education initiatives, rebate scheme and user pays pricing as well as investigating water losses.

Improved community education

Community education program to be developed in conjunction with rebate program, and to incorporate items such as greywater recycling and water sensitive urban design.

Program and associated information was developed as part of the implementation of the rebate program.

Fixture retrofits and rebates Detailed rebate program to be established. Including plumbing contracts, marketing materials, quality assurance and reporting procedures.

Rebates for water efficient fixtures have not been adopted.


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Inclining block tariff On-going revenue modelling to set adjustments to fixed and variable charges. Revenue Policy to be amended to reflect new water consumption charges.

Two-part tariff applies with two step consumption charge. Inclining block tariff is no longer recommended.

Leakage reduction, audits and metering

Identification and metering of un-metered connections.

All connections are now metered.

Active participation in the Water Directorate’s state-wide Water Loss Program.

Kyogle Council did not participate in this program which was undertaken in 2010.

Audits of high water users on a voluntary basis

No formal audits of high water users have been undertaken. Council found and repaired substantial leaks in the public pools. A partnership between Council and the high water users (which are generally commercial and industrial sites) to review business practices to reduce costs to the business and water consumption may be appropriate.

Self-sufficient new rural development

Development Control Plan and/or conditions of development to be reviewed to ensure all new rural development is self- sufficient in water and sewerage services.

DCP Chapter 2 – Subdivision addresses water and sewer infrastructure provision in rural areas.

Development Control Plan and/or conditions of development to be reviewed to ensure Water Sensitive Urban Design principles are followed for new developments and redevelopments.

Council adopted the Northern Rivers Local Government Development Design and Construction Manual which were recently been updated to include the Stormwater Drainage Handbook, incorporating the principles of WSUD across the region. The DCP was then developed to ensure that there was the requirement to meet certain criteria with regards to on-site detention and incorporating WSUD principles in industrial and commercial development, all using the regional manual as the primary specifications.


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Monitoring and Review

Water Quality Monitoring Continuation of current water quality monitoring program.

Water quality monitoring is undertaken in accordance with licence and regulatory requirements.

Development and implementation of revised water quality monitoring program for the Kyogle STP augmentation works.

Monitoring is undertaken in accordance with the EPA licence for the Kyogle sewerage system.

Involvement in regionally co-ordinated water quality monitoring programs such as the NRCMA Northern Rivers Ecosystem Health Monitoring program and NSW health programs such as pesticide monitoring programs.

Council participated in the Clarence Catchment and Richmond Catchment EcoHealth Projects.

Water Quantity Metering Continuation of current monitoring program including sectoral consumption records.

Raw and treated water flow monitoring is undertaken at the WTPs.

Installation of backwash metering at the WTP.

Kyogle WTP backwash water usage is monitored.

Maintenance and regular calibration of all existing meters, flow measuring devices and telemetry data recording.

Maintenance and calibration is undertaken in accordance with manufacturer recommendations.

Integrated Water Cycle Management

Review of the Kyogle IWCM Strategy. This IWCM Strategy review.

The secure yield of the Kyogle and Urbenville, Woodenbong and Muli Muli (UWMM) water supplies were re-assessed in 2014 in accordance with the current guidelines.

Consolidation of other village IWCM strategies and long term strategies to allow one IWCM strategy to cover all serviced villages.

Administration Review of water billing system data to better reflect water and sewerage customer categories

Complete.

Review of Developer Contributions for Water, Sewer and Stormwater and Flood Mitigation.

Development Servicing Plan for Kyogle and Villages Water Supply Sewerage and Stormwater Services was adopted in 2011. Council is exempt due to low growth.

Review of current Water Supply and Sewerage Services Strategic Business Plans to reflect IWCM Strategy outcomes and revision of levels of service.

Now undertaken as part of the Integrated Planning and Reporting Framework process across all Council functions. No future separate Strategic Business Plans are proposed to be developed for water and sewerage services.


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Table 81: Status of issues from 2006 Kyogle IWCM Strategy

Issue1 Possible Impacts1 Current Status Current Issues

Catchment

Agricultural extractions • During low flow periods, river extractions can exceed the total river flows

• Fluctuations in agricultural demand may impact on the preferred water cycle management strategy

• Impacts downstream users, including town water supply

The Water Management Act, 2000 governs the issue of new water licences and the trade of water licences and allocations for those water sources (rivers, lakes and groundwater) in NSW where water sharing plans have commenced. The Kyogle water supply is subject to the Water Sharing Plan for the Richmond River Area Unregulated, Regulated and Alluvial Water Sources, 2010.

The Bonalbo water supply is subject to the Water Sharing Plan for the Clarence River Unregulated and Alluvial Water Sources, 2016 and Water Sharing Plan for the North Coast Fractured and Porous Rock Groundwater Sources, 2016. The Urbenville water supply has been incorporated in the Clarence Unregulated and Alluvial Water Sources Water Sharing Plan.

The secure yield of the Kyogle and UWMM water supplies were assessed in 2014 in accordance with the current guidelines. The secure yield of Bonalbo was assessed in 2005 (using the 5/10/20 rule) and requires review.

This issue has been resolved as far as possible within the IWCM framework.

Bonalbo secure yield to be assessed.

Poor river water quality, including faecal coliforms, total phosphorus, turbidity and salinity. Consistently fails requirements for aquatic ecosystem protection, drinking water and primary recreation.

• Reduces the usability of the river water

• Algal blooms (potential health issues)

• Impacts on town water supply

• Reduces ecological diversity of river system

Water treatment facilities are provided in Kyogle, Bonalbo and Urbenville (servicing Woodenbong and Muli Muli).

Kyogle is currently investigating options for sewering of Wiangaree, Tabulam and Mallanganee.

Ecological health issues in the Clarence and Richmond Rivers are being addressed through other programs including the EcoHealth project and Local Land Services(LLS) initiatives.

Kyogle Council will participate in the development of the Coastal Management Program for the Richmond River (2020 onwards).

Impacts on water quality (including drinking water catchments) from unsewered villages remain.

Dryland salinity in upper catchment areas

• Reduces downstream water quality

• Decreases productivity of land

• Reduces ecological diversity

Dryland salinity issues are addressed through LLS initiatives.




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Soil erosion • Reduces downstream water quality

• Decreases productivity of land

Soil erosion is addressed through LLS initiatives.



River bank erosion • Reduces river water quality

• Reduces ecological diversity of river bank and river system

River bank erosion is addressed through LLS initiatives.



Deforestation and monodiversity

• Reduces river water quality

• Reduces ecological diversity

Deforestation and monodiversity is addressed through LLS initiatives.



Climate change and greenhouse gases

• May impact availability of water resources

• Potentially exacerbates issues such as soil erosion and dry land salinity

• Potentially impacts stormwater quantity and quality

Council has assessed the impact of climate change on the availability of Kyogle and UWMM water supplies in accordance with current guidelines. The Kyogle water supply augmentation will address future reduction in water available due to climate change.

Soil erosion and dry land salinity are addressed through LLS initiatives.

Council prepared and adopted the Kyogle Floodplain Risk Management Plan in 2009. This plan is mainly focussed on the village of Kyogle, but also provides some details of flooding and development control for the village of Wiangaree. The final plan identified some flood modification works in Kyogle consisting of a 1:10 year partial ring levee and flood break out channel between the Richmond River and Fawcetts Creek at the western end of McDougal Street.

There are many localised issues with stormwater runoff or surcharge in higher intensity events, and damage can often be caused to both Council assets and private property. In many cases the causes are associated with both poor drainage design and uncontrolled discharge from private properties and, in particular, poorly constructed vehicular access.


There remain some issues in many of the villages relating to stormwater and flood management.

Bonalbo secure yield to be assessed.

Tabulam Flood Study completed.

Bonalbo Flood Study to commence in 2019.


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Ecological health of waterways

• Threatened species may potentially be impacted by activities in the catchment

• Changes to Kyogle’s water cycle infrastructure (e.g. the weir) could impact on the rivers environmental flows and fish migration patterns

Ecological health is addressed through LLS initiatives.

The Kyogle water supply augmentation included provision for fish passage at the weir.



Increases in numbers of small landholders‘ dams

• Potential to alter stream flows The NSW Government issued the NSW Floodplain Harvesting Policy in 2013 to bring floodplain harvesting activities into a statutory licensing and approvals framework under the Water Management Act, 2000. The Policy provides a framework for the management of water extraction from floodplains for the benefit of existing water users and the environment. The Policy ensures that eligible floodplain water users have the security of a water licence that is compensable under the Water Management Act, which is the case for most other water categories. Under the Policy, the amount of floodwater available for extraction in NSW will be capped and shared among existing water users. All works undertaking floodplain harvesting extractions will require an approval from the NSW Office of Water before being used to capture floodplain harvesting water.


Thought to be a large number of unregistered bores

• Difficult to quantify and regulate groundwater extraction

• Aquifer at “high” risk

Bore extraction is subject to the Water Act, 1912 or the Water Management Act, 2000. This issue has been resolved as far as possible within the IWCM framework.

Kyogle Water Supply Issues

Poor condition of WTP • Increased OH&S risks

• Reduced reliability and performance

The Kyogle WTP has been upgraded.

DWMS has been prepared.

Review of WTP performance has been undertaken as part of the ongoing review of the DWMS.


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Lack of town water supply security

• Social and economic ramifications e.g. water restrictions

• Potential storage options may have environmental impacts including: altered stream flows; altered catchment ecology and reduced flood impacts.

• Potential source replacements may reduce river extraction however may also not be socially acceptable.

Water supply security was addressed through the Kyogle water augmentation strategy.

Long-term security of supply will be addressed in the IWCM Strategy.

Drought Management Plan requires review.

Variable poor raw water quality

• Impacts on water treatment processes

The Kyogle WTP has been upgraded. Council has also prepared a DWMS. Review of WTP performance has been undertaken as part of the ongoing review of the DWMS.

Water filter backwash to river

• Filter backwash increases pollutant loads in receiving creek and river

The Kyogle WTP upgrade has addressed this. This issue has been resolved as far as possible

Kyogle Sewerage Issues

STP plant capacity and performance

• Higher than ideal hydraulic loads cause short circuits in the treatment process which in turn reduces the receiving water quality

• Ageing infrastructure also reduces the effluent quality

Stormwater infiltration and inflow abatement program has been implemented. Review of STP performance has been undertaken for the IWCM Issues Paper.

Some issues with non-compliance with EPA licence conditions.


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DEC (EPA) Pollution Reduction Program

• Aims to improve water quality and increase effluent reuse

• Requires Council’s attention

Council is complying with the licence PRPs. Effluent reuse has been implemented at Kyogle.

Recycled water management systems/ irrigation management plans have not been prepared for the effluent reuse schemes.

Licence compliance has been reviewed in the IWCM Issues Paper.

Contribution STP has on Richmond River during low flows

• Increased recycling of effluent may cause changes to the extraction/effluent release ratio in the Richmond River

• Relative nutrient loads on river are increased during low flow periods

The effects of effluent reuse from Kyogle STP on Richmond River flows will be assessed as part of consideration of additional effluent reuse opportunities if these are considered viable.

The Kyogle STP was upgraded in 2009 to improved effluent discharge quality.

The need for potable water substitution and any associated impacts will be considered as part of the IWCM Strategy.

Sewerage reticulation infiltration and storm inflow

• Causes large peaks in flows during storm events, which in turn results in poor effluent quality and potential system surcharges

The sewer relining program is still the main focus of the ongoing capital renewals program.

Sewerage infiltration and inflow remains an issue.

On-site sewerage treatment systems

• Potential impact on receiving water quality

• Some on-site systems within the town service area with potential water quality and health issues

23 properties with on-site sewerage systems were connected to the Kyogle sewerage system since 2006. Two properties in Geneva with septic effluent pump out systems remain unconnected.

On-site sewerage management in the smaller villages remains an issue.


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Kyogle Stormwater Issues

Stormwater system hydraulic bottlenecks

• Potential flood issues in commercial district

The existing stormwater systems have been constructed on an ad hoc basis as the villages developed. The piped systems are limited, and in many cases do not have sufficient capacity to cater for the current design events. There are many open drains within the villages, catering for both local stormwater discharges and trunk drainage. These open drains are of some concern due to their limited capacity, frequency of surcharge, poor amenity and high maintenance requirements.

There are still some localised issues with stormwater runoff or surcharge in higher intensity events, and damage can often be caused to both Council assets and private property. In many cases the causes are associated with both poor drainage design and uncontrolled discharge from private properties and, in particular, poorly constructed vehicular access.

Since the commencement of the stormwater management charge, there have been funds available each year to start to make improvements to the stormwater systems to address some of these issues. However, the current levels of funding mean that it will still take many years to undertake the improvements required across all villages.

Stormwater and flooding continues to be an issue in the LGA.

Stormwater quality impacts

• Receiving waters can be adversely impacted by poor stormwater quality

• Lack of formal stormwater litter, sedimentation and erosion control measures

Some stormwater discharges to private property

• May impact land holder

1. As identified in the Kyogle IWCM Strategy (MWH, 2006).


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APPENDIX 3: RELEVANT LEGISLATION AND GUIDELINES


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Table 82: Key legislation

Target Summary of requirements

Local Government Act, 1993, and Local Government (General) Regulation 2005

This Act provides the legal framework for the system of local government in NSW. The Act addresses:

• Requirement to comply with DPIE – Water best-practice management guidelines (Integrated Planning and Reporting Manual);

• General pricing (sections 501, 502, 552) as well as developer charges for water supply and sewerage services and stormwater contributions (section 64);

• Inspection, assessment and licensing of on-site sewage systems (section 68);

• Approval from the Minister of Land and Water Conservation (i.e. Office of Water) to undertake water supply or sewerage works (Section 60);

• Trade waste approvals (section 68);

• Accountable, effective end economical management;

• Self-funding of water utility operations, and no cross subsidy with other Council activities; and

• Stormwater management service charge (section 496A);

Local Government (Water Services) Regulation,1999

The Regulation supplements the provisions of the Local Government Act 1993 relating to the carrying out of water supply, sewerage and stormwater drainage works by councils and regulates the use of such works including:

• The imposing of water restrictions,

• The discharge of prohibited matter into sewers and drains,

• The functions of councils in relation to water supply, sewerage and stormwater drainage (includes provisions for joint council works, installation of fire hydrants, inspection of pipes and drains, cutting off of water supply and connections to sewerage systems),

• General requirements for the carrying out of water supply, sewerage and stormwater drainage work,

• The installation, use and testing of water meters,

• The use and misuse of water, and

• The prohibition of joint sewerage services. The Regulation refers to the Plumbing and Drainage Code of Practice in relation to the laying of house service pipes.

Environmental Planning and Assessment (EP&A) Act, 1979

The Act requires that all proposals, activities and functions which are investigated, designed, planned, constructed and operated should be studied during all stages to identify their environmental impact on the basis of scale, location and performance. Environmental impact assessments may also be required to satisfy Commonwealth legislation processes. The Act provides the basis for the preparation of environmental planning instruments (refer ).

Water Management Act, 2000

This Act provides for the sustainable and integrated management of the water sources of NSW. The Act provides a framework for WSPs and environmental flows, sets out bulk water supply regimes, defines local water utility access licences and requires Council to levy developer charges.



Protection of the Environment Operations (POEO) Act, 1997

Councils and private businesses are required to exercise due diligence to avoid environmental impact. The Act addresses:

• Penalties to individuals and corporations who cause pollution;

• Council needs to develop operations emergency plans and due diligence plans to ensure that procedures are in place to prevent / minimise pollution;

• A system is required to monitor operations, improve controls and reduce risks;

• Council’s officers, as well as the Council, may be liable for breaches of requirements;

• Council has a duty to notify Office of Environment and Heritage of pollution incidents;

• System licensing for sewerage systems (Schedule 1 Scheduled Activity) including Pollution Reduction Program (PRP) requirements; and

• Pollution from private systems – Local councils are the regulatory authorities for non-scheduled activities, except activities undertaken by a public authority which the EPA will regulate.

Public Health Act, 2010 This Act commenced in 2012, replacing the Public Health Act, 1991. The Act requires drinking water suppliers to establish and adhere to a quality assurance program that complies with the Regulation.

The Act gives NSW Health powers with respect to the provision of safe drinking water. These include powers to:

• Require the issuing of advice to the public on the safety of a drinking water supply;

• Require the correction of any misleading information issued to the public;

• Enter and inspect premises of a supplier of drinking water;

• Require testing of drinking water;

• Require production of information including the results of testing; and

• Order the rectification or closure of a water supply.

The Act was amended to mandate compliance with the “health critical” elements of the Australian Drinking Water Guidelines in regional NSW. Part 3 Division 1 of the Act deals with safety measures for drinking water and requires that:

• Drinking water must be fit for human consumption; and

• A supplier of drinking water must establish, and adhere to, a quality assurance program that complies with the requirements prescribed by the regulations. The regulations may make provision for water testing, maintenance of records.

Fisheries Management Act, 1994

The objects of this Act are to conserve, develop and share the fishery resources of NSW for the benefit of present and future generations. Often works associated with water supply structures including dams, weirs, pipelines and extraction points involve works that trigger certain approval requirements under the Act, in particular:

• S198-202 provisions relating to dredging and reclamation activities on and within water;

• S218-220 provision relating to fish passage; and

• Part 7A relating to threatened fish species.

Work Health and Safety Act 2011 and Regulation 2011

The Acts places emphasis on risk management and consultation with staff to minimise work related accidents and health impacts. Council needs to train staff in safety issues and provide a safe working environment and supply equipment to ensure safety. Council and Council’s officers may be liable for breaches of these requirements.

Competition Policy including Competition Policy Reform Act, 1995

Council is subject to prohibition on anti-competitive behaviour, according to the Trade Practices Act. The provision of services by a monopoly is subject to compliance with the National Water Commission (previously the National Competition Council).


Page 201


Water Industry Competition Act, 2006

The objectives of the Act and supporting Regulations are to encourage competition in the water industry and to foster innovative recycling projects and dynamic efficiency in the provision of water and wastewater services. The core reforms introduced by the Act are the establishment of a new licensing regime for private sector providers of reticulated drinking water, recycled water and sewerage services, provisions to authorise IPART to arbitrate certain sewer mining disputes and the establishment of a third-party access regime for water and sewerage infrastructure.

Fluoridation of Public Water Supplies Act, 1957

Under the Act, approval of NSW Health is required in order that a Council can add fluoride to a water supply.

Independent Pricing and Regulatory Tribunal Act 1992

The Independent Pricing and Regulatory Tribunal Act establishes the Independent Pricing and Regulatory Tribunal and enables the Tribunal to determine and advise on prices and pricing policy for government monopoly services.

Dam Safety Act 2015 Under this Act the owners of prescribed dams (such as the Petrochilos Dam in Bonalbo) are required to meet standards relating to the construction, monitoring, maintenance and emergency planning and any other risks that may arise in relation to these prescribed dams.

Table 83: Environmental planning instruments

Instrument Summary of requirements

SEPP Building Sustainability Index (BASIX), 2004

BASIX was mandatory for new residential dwellings in regional NSW from 2005/06. It has now been extended to all residential developments valued in excess of $50,000. BASIX sets energy and water reduction targets for new homes and apartments. Rainwater tanks are now required for all new developments in NSW including new developments for swimming pools or spas that require a BASIX certificate. Water targets range from 40% to 0% across NSW, taking into account the significant variances in climate.

State and Regional Development SEPP, 2011

The system establishes two separate assessment frameworks for State significant development (SSD) and State significant infrastructure (SSI). Projects that fall within these categories will be assessed by the Department of Planning and Infrastructure and determined by the Minister, the Planning Assessment Commission or senior departmental staff.

The SSD assessment system has been established to guide planning decisions on:

• Large-scale industrial, resource and other proposals in 24 different development classes; or

• Development in precincts identified as important for the State by the NSW Government.

The SSI assessment system has been established to allow planning decisions on major infrastructure proposals, in particular linear infrastructure (such as roads, railway lines or pipes which often cross a number of council boundaries) or development which doesn’t require consent but which could have a significant environmental impact (such as a port facility).

SEPP Infrastructure, 2007

Provides a consistent planning regime for infrastructure and the provision of services across NSW, along with providing for consultation with relevant public authorities during the assessment process.

Kyogle LEP 2012 The Kyogle Local Environmental Plan (LEP) 2012 is the principal planning instrument for the Council area.

Development Control Plans (DCPs)

The Kyogle DCP 2014 makes provisions to guide the design of development proposals, the preparation of applications for development consent and the assessment of development applications in the Kyogle Council LGA. Council is required under Section 79C of the Environmental Planning and Assessment Act 1979 to take into consideration the relevant provisions of the DCP in determining development applications on land to which the DCP applies.


Table 84: Relevant urban water management guidelines

Target Summary of objectives related to IWCM

Best Practice Management of Water Supply and Sewerage Guidelines

The NSW Government encourages best-practice by all NSW LWUs. The purpose of best-practice management is:

• To encourage the effective and efficient delivery of water supply and sewerage services; and

• To promote sustainable water conservation practices and water demand management throughout NSW.

Through the NSW Government’s Country Towns Water Supply and Sewerage Program, sections 283 to 322 of the Water Management Act 2000, and sections 56 to 66 of the Local Government Act 1993, the Minister for Water is responsible for overseeing the performance of LWUs. The Best Practice Management of Water Supply and Sewerage Guidelines (DWE, 2007) were prepared to encourage continuing improvement in performance and identify criteria for best practice management of water supply and sewerage. Substantial compliance with the Best-Practice Guidelines is a pre-requisite for State Government financial assistance towards the capital cost of backlog water supply and sewerage infrastructure and for payment of a dividend from the surplus of the water supply or sewerage business to the council’s general revenue. Compliance with the Best-Practice Management Guidelines is also a requirement of the Division of Local Government’s Planning and Reporting Manual. To facilitate council reporting under the NSW Local Government Integrated Planning and Reporting Framework, the IWCM Strategy and Strategic Business Plan are now required to provide input to the 10-year Community Strategic Plan, the 4-year Delivery Program and the Annual Operational Plan.

DPIE - Water has prepared checklists for the Integrated Water Cycle Management Strategy and Strategic Business Plans.

Australian Drinking Water Guidelines (ADWG, 2011)

The ADWG defines safe, good quality water and how it can be achieved and assured. The ADWG provides a framework for management of drinking water supplies, which will assure safety at point of use when correctly implemented. The Public Health Act, 2010 and Regulation 2012 require water utilities to prepare and implement a risk-based drinking water quality management plan in accordance with the ADWG. The Framework for Management of Drinking Water Quality is a preventive management approach that encompasses all steps in water production from catchment to consumer. The Framework incorporates a preventive risk management approach including elements of the Hazard Analysis and Critical Control Point (HACCP) system, Australian and International Standards (ISO 9001 and AS/NZS 4360), but applies them in a drinking water supply context to support consistent and comprehensive implementation by suppliers.

NSW Health and DPI-Office of Water have prepared guidelines for Drinking Water Management Systems based on the ADWG.

Australian Guidelines for Water Recycling (AGWR): Managing Health and Environmental Risks (2006)

The AGWR adopt a risk management approach to managing risks to human health and the environment from recycling of water from greywater and treated sewage.

DPI-Office of Water has prepared guidelines for Recycled Water Management Systems based on the AGWR.

NSW Interim Guidelines for Management of Private Recycle Schemes (2008)

Provides advice, for obtaining approval to install and operate a private recycled water scheme.

NSW Guidelines for Greywater Reuse in Sewered, Single Household Residential Premises (2008)

Guidelines for approval of greywater treatment systems in accordance with Item C6, Section 68, Local Government Act, 1993.


Page 203

Target Summary of objectives related to IWCM

Environmental Guidelines: Use and Disposal of Biosolids Products (2000)

Guidelines related to the beneficial use and disposal of biosolids.

Environment and Health Protection Guidelines: On-site Sewage Management for Single Households (known as the ‘Silver Book’), 1998

Guidelines to assist with the assessment, regulation and management of single household on-site sewage management systems.

Managing Urban Stormwater: Soils and Construction Guidelines

Guidelines for managing erosion and sediment control during construction works.

Environmental Guidelines: Use of Effluent by Irrigation (DECC, 2004)

Guidelines for use of treated effluent in landscape watering, irrigation of pasture, crops, orchards, vineyards, plantation forests or rehabilitated sites and irrigation of golf courses, racecourses and other recreation grounds.


Page 205

APPENDIX 4: TBL PERFORMANCE REPORTS AND ACTION PLANS (2015/16)

Kyogle Council TBL Water Supply Performance 2015-16

IMPLEMENTATION OF OUTCOMES REQUIRED BY THE NSW BEST-PRACTICE MANAGEMENT (BPM) FRAMEWORK (1) Complete Current Strategic Business Plan & Financial Plan YES (3) Sound water conservation implemented(2) (2a) Pricing - Full Cost Recovery, without significant cross subsidies Yes (4) Sound drought management implemented

(2b,2c) Pricing - Appropriate Residential Charges No (5) Complete performance reporting (by 15 September)(2d) Pricing - Appropriate Non-residential Charges Yes (6) Integrated water cycle management strategy(2e) Pricing - DSP with Commercial Developer Charges Yes IMPLEMENTATION OF ALL OUTCOMES

TRIPLE BOTTOM LINE (TBL) PERFORMANCE INDICATORS RESULT

NWI No. All LWUs Statewide National

C1 1 Population served: 3,700 (Number of assessments: 2,000) Col 1 Col 2 Col 3 Col 4 Col 5

C4 2 Number of connected properties: Council is within Size Group 3: (1,501 to 4,000 properties) 1,9003 Residential connected properties % of total 87 914 New residences connected to water supply % 0.7 2 3 1.0

A3 5 Properties served prop/km 34 33 346 Rainfall % median annual rainfall 91 4 4 104

W11 7 Total urban water supplied at master meters ML 430 6,900 9,7708 Peak week to average consumption % 126 1 1 1429 Renewals expenditure % CRC 0.6

10 Employees per 1,000 prop 3.7 5 5 1.5

P1 Residential tariff structure for 2016-17: inclining block; independent of land value; access charge $361P1.3 12a Residential water usage charge for 2015-16 for usage <200 kL c/kL (2015-16) 150 3 4 228 190

12 Residential water usage charge for 2016-17 for usage <200 kL c/kL (2016-17) 158 3 4 230P3 14a Typical residential bill for 2015-16 $/assessment (2015-16) 550 1 1 601 623

14 Typical residential bill for 2016-17 $/assessment (2016-17) 578 1 1 62515 Typical developer charge for 2016-17 $/ET (2016-17) 2,930 4 4 5,600

F4 16 Residential revenue from usage charges % residential bills 43 5 5 73 66F5 17 Revenue - Water $/prop 790 5 4 928 921

18 Water Supply Coverage (% of Urban Population with reticulated WS) % of population 87.0 5 5 99.2H4 19b % population with chemical compliance % of population 100 1 1 100H3 20a % population with microbiological compliance % of population 100 1 1 100 100

C9 25 Water quality complaints per 1,000 prop 1.0 4 3 3 2C10 26 Water service complaints per 1,000 prop 14 4 4 4 0.5C17 27 Incidence of unplanned interruptions per 1,000 prop 12 2 3 32 90A8 30 Number of water main breaks per 100km main 7 1 2 9 13

32 Total days lost % 2.2 4 3 3.5

W12 33 Average annual residential water supplied - STATEWIDE result kL/prop 137 1 1 162 18133a Average annual residential water supplied - COASTAL LWUs kL/prop 137 1 1 155

A10 34 Real losses (leakage) L/connection/day 30 1 1 70 7635 Energy consumption kWh/ML 660

E12 36a Net greenhouse gas emissions - WS & Sge t CO2 eq per 1,000 prop 310 3 2 390 402

42 Current replacement cost $/assessment 13,800 4 4 17,400F17 43 Economic real rate of return - Water % 1.4 3 3 2.3 2.8

44 Return on assets - Water % 0.9 3 4 1.7F22 45 Net Debt to equity - WS & Sge % -1 1 2 -3 7F23 46 Interest cover - WS & Sge 4 1 1 34 2

47 Loan payment - Water $/prop 47 1 2 11F24 47b Net profit after tax - WS & Sge $'000 350 3 4 3,800 9300

48 Operating cost (OMA) per 100km of main $'000 1,890 4 5 1,120F11 49 Operating cost (OMA) per property - Note 8 $/prop 631 4 4 440 485

50 Operating cost (OMA) per kilolitre c/kL 247 5 5 12051 Management cost $/prop 167 3 3 14852 Treatment cost $/prop 241 4 5 5953 Pumping cost $/prop 65 3 3 2854 Energy cost $/prop 15 2 2 1755 Water main cost $/prop 71 1 2 71

F28 56 Capital Expenditure $/prop 2,019 1 1 212 193

NOTES :12345

67

7.18910

90%

YES YES YES

MEDIANS

FIN

ANC

E

YES*

2016-17 Non-res tariff: Access Chg based on Service Connection Size: 40mm: $1445, Inc Block; Usage up to 200 kL: Usage Chg 158 c/kL; Usage >200 kL: 200 c/kL.

RANKING

Col 2 rankings are on a % of LWUs basis - best reveals performance compared to LWUs in a similar Size Group (ie. Result in Col 1 is compared with LWUs in Size Group 3).Col 3 rankings are on a % of LWUs basis - best reveals performance compared to all NSW LWUs (ie. Result in Col 1 is compared with all NSW LWUs).

Size Group 3

WATER SUPPLY SYSTEM - Kyogle Council serves a population of 3,700 (1,900 connected properties). Water is drawn from the Richmond River to supply Kyogle, and in the Clarence River catchment from Peacock Creek to supply Bonalbo and Toolom Creek to supply Woodenbong and the Aboriginal community of Muli Muli in a joint water supply with Tenterfield Shire Council also supplying Urbenville. Council has 1 storage dam in Bonalbo (total capacity 45 ML). The water supply network comprises 3 conventional treatment works, one in Kyogle (3 ML/d), Bonalbo (0.3ML/d) and one in Urbenville which is shared with Tenterfield Shire Council, 5 service reservoirs (6 ML), 5 pumping stations, 3.3 ML/d delivery capacity into the distribution system, 26 km of transfer and trunk mains and 45 km of reticulation. 91% of water supplied is potable and 9% nonpotable (recycled).

PERFORMANCE - The 2016-17 typical residential bill was $578 which was close to the statewide median of $625 (Indicator 14). The economic real rate of return was 1.4% which was less than the statewide median (Indicator 43). The operating cost (OMA) per property was $631 which was well above the statewide median of $440 (Indicator 49). Water quality complaints were less than the statewide median of 3 (Indicator 25). Compliance with ADWG was achieved for microbiological water quality (100% of the population, 3 of 3 zones compliant), chemical water quality and physical water quality. There were no failures of the chlorination system or the treatment system. Kyogle Council reported no water supply public health incidents. Council has a risk-based Drinking Water Management System (DWMS) and had 365 days of water restrictions. Current replacement cost of system assets was $28M ($13,800 per assessment). Cash and investments were $2.6M and revenue was $1.5M (excluding capital works grants).

BPM IMPLEMENTATION - Kyogle Council achieved 90% implementation of the outcomes required by the NSW BPM Framework. Council needs to prepare a 30-year IWCM Strategy, Financial Plan and Report in accordance with the July 2014 IWCM Check List (www.water.nsw.gov.au) and needs to implement appropriate residential charges (50% from usage charges) (2c).

LWUs are required to annually review key projections & actions in the later of their IWCM Strategy and financial plan and their Strategic Business Plan and to annually

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Col 4 (Statewide Median) is on a % of connected properties basis- best reveals statewide performance (gives due weight to larger LWUs & reduces effect of smaller LWUs).Col 5 (National Median) is the median value for the 75 utilities reporting water supply performance in the National Performance Report 2015-16 (www.bom.gov.au).

NAT

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'roll forward', review and update their 30-year total asset management plan (TAMP) and 30-year financial plan.

Kyogle Council has 7 fully qualified water treatment operators who meet the requirements of the National Certification Framework.

Non-residential water supplied was 35% of potable water supplied (excluding non-revenue water). Non-residential revenue was 30% of annual rates and charges. This indicates fair pricing of services between the residential and non-residential sectors.Operating cost (OMA/ property) was $631, components were bulk supply ($75), management ($167), operation ($218), maintenance ($133), energy ($15) & chemical ($22).Rehabilitations included 0.42% of service connections.

WATER SUPPLY SYSTEM -

PERFORMANCE -

BPM IMPLEMENTATION -

Kyogle Council TBL Water Supply Performance (page 2) 2015-16(Results shown for 10 years together with Statewide Median and 2015-16 Top 20%)

RESIDENTIAL USE/REVENUE FROM USAGE

COST RECOVERY

WATER QUALITY/CUSTOMER SERVICE/CAPITAL EXPENDITURE

RELIABILITY

EFFICIENCY

NOTES:

1 Costs are in Jan 2016$ except for graphs 12 and 14, which are in Jan 2017$.2 Microbiological water quality compliance up to 2010-11 was on the basis of 2004 NHMRC/NRMMC Australian State Median for all years

Drinking Water Guidelines (ADWG) and for 2011-12 to 2015-16 compliance was on the basis of the 2011 ADWG. Top 20% for 2015-16 ×3 Indicator 33c - Yellow bars show Peak Week Water Supplied for comparison with Peak Day Water Supplied shown in green.4 Indicators 33 and 33c - Green shading of bars shows % of time Drought Water Restrictions applied in each year: 0 - 30% 30-50% >50% of time

LEGEND

0

500

1,000

1,500

2,000

2,500

06/07 08/09 10/11 12/13 14/15

($/p

rope

rty)

56. Capital Expenditure - F28Plant & Equipment (Acquisition)RenewalsNew Assets for Improved Standards

0

50

100

150

200

250

300

07/08 09/10 11/12 13/14 15/16

(Res

iden

tial W

ater

Usa

ge C

harg

e c/

kL)

12. Water usage charge - P1.3

-2.0

-1.0

0.0

1.0

2.0

3.0

4.0

5.0

06/07 08/09 10/11 12/13 14/15

(%)

43. Economic real rate of return - F17

0

20

40

60

80

100

120

140

160

180

06/07 08/09 10/11 12/13 14/15

(min

)

28. Average duration of interruptions - C15

0

100

200

300

400

500

600

700

800

06/07 08/09 10/11 12/13 14/15

($/p

rope

rty)

49a. Operating cost OMA - F11 - Asset Type

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

06/07 08/09 10/11 12/13 14/15

(Num

ber p

er 1

000

prop

ertie

s)

10. Employees

0

100

200

300

400

500

600

700

06/07 08/09 10/11 12/13 14/15

($/p

rope

rty)

49. Operating cost OMA - F11 - Process

0

2

4

6

8

10

12

14

16

06/07 08/09 10/11 12/13 14/15

(Num

ber p

er 1

00km

of M

ain)

30. Main breaks - A8

0

10

20

30

40

50

60

06/07 08/09 10/11 12/13 14/15

(Num

ber p

er 1

000

prop

ertie

s)

27. Incidence of unplanned interruptions - C17

0

50

100

150

200

250

06/07 08/09 10/11 12/13 14/15

(kL/

a/Pr

oper

ty)

33. Average annual residential water supplied - W12

0.0

0.5

1.0

1.5

2.0

2.5

06/07 08/09 10/11 12/13 14/15

(kL/

d/Pr

oper

ty)

33c. Peak day water supplied Yellow bars show peak week for comparison - see note 3

0

100

200

300

400

500

600

700

07/08 09/10 11/12 13/14 15/16

($/A

sses

smen

t)

14. Typical residential bill - P3

0

10

20

30

40

50

60

70

80

90

100

06/07 08/09 10/11 12/13 14/15

(%)

16. Residential Revenue from Usage - F4

0

20

40

60

80

100

06/07 08/09 10/11 12/13 14/15

(%)

20. Microbiological water quality compliance

0

5

10

15

20

25

30

35

06/07 08/09 10/11 12/13 14/15

(Num

ber p

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,000

pro

perti

es)

25. Water quality complaints - C9 [dark] and 26. Water service complaints - C10 [light]

Management Operation Maintenance Energy Chemicals Management Mains Pump Stations Reservoirs Treatment Dams/Weirs Other

Kyogle Council TBL Sewerage Performance 2015-16

IMPLEMENTATION OF OUTCOMES REQUIRED BY THE NSW BEST-PRACTICE MANAGEMENT (BPM) FRAMEWORK (1) Complete current strategic business plan & financial plan YES (2e) Pricing - DSP with commercial developer charges(2) (2a) Pricing - Full Cost Recovery without significant cross subsidies Yes (2f) Pricing - Liquid trade waste approvals & policy

(2b) Pricing - Appropriate Residential Charges Yes (3) Complete performance reporting (by 15 September)

(2c) Pricing - Appropriate Non-Residential Charges Yes (4) Integrated water cycle management strategy

(2d) Pricing - Appropriate Trade Waste Fees and Charges Yes IMPLEMENTATION OF ALL OUTCOMES

TRIPLE BOTTOM LINE (TBL) PERFORMANCE INDICATORS RESULT

NWI No. Size Group 3 All LWUs Statewide National

C5 1 Population served: 3,600 (Number of assessments: 1,930) Col 1 Col 2 Col 3 Col 4 Col 5

C8 2 Number of connected properties: Council is within Size Group 3: (1,501 to 4,000 properties) 1,830C6 3 Residential connected properties No. 1,580

4 New residences connected to sewerage % 0.3 4 4 1.2

A6 5 Properties served prop/km main 30 38 40

W18 6 Volume of sewage collected ML 416 4,900 5,610

7 Renewals expenditure % CRC 0.5

8 Employees per 1,000 prop 3.8 5 5 1.7

P4 Description of residential tariff structure for 2016-17: access charge/prop; independent of land value

P6 12a Typical residential bill for 2015-16 $/assessment (2015-16) 662 4 3 697 703

12 Typical residential bill for 2016-17 $/assessment (2016-17) 688 4 4 718

13 Typical developer charge for 2016-17 $/ET (2016-17) 2,160 4 4 4,700

14 Non-residential sewer usage charge for 2016-17 c/kL (2016-17) 103 4 5 159

F6 15 Revenue - Sge $/prop 800 2 3 1,095 1032

16 Sewerage Coverage (% of Urban Population with Reticulated Sge Service) % of population 87.0 4 5 97.8

E3 17 Percent of sewage treated to a tertiary level % 75 3 4 95 85

18 Percent of sewage volume treated that was compliant % 100 1 1 100

21 Odour complaints per 1,000 prop 0.0 1 1 0.9

C11 22 Service complaints - Sge per 1,000 prop 4.4 2 2 5 1

C16 23a Average sewerage interruption min 90 2 2 108 101

25 Total days lost % 2.2 4 4 3.5

W19 26 Volume of sewage collected kL/prop 227 4 4 234 202

W26 26a Total recycled water supplied ML 40 4 4 740 1,580

W27 27 Recycled water % of effluent 10 3 3 11 17

E8 28 Biosolids reuse % 100 1 1 100 90

30 Energy consumption kWh/ML 303 1 1 810

E12 32 Net greenhouse gas emissions - WS & Sge t CO2 eq per 1,000 prop 310 3 2 390 402

33 90th

Percentile licence limits for effluent discharge:

34 Compliance with BOD in licence % 100 1 1 100

35 Compliance with SS in licence % 100 1 1 100

A14 36 Sewer main breaks and chokes per 100km main 5 1 1 38 20

37a Sewer overflows per 100km main 10 5 4 14

E13 37b Sewer overflows reported to environmental regulator per 100km main 0.0 1 1 0.9 0.8

39 Non residential & trade waste sewage volume % of sewage 28 1 1 204243 Revenue from non-residential & trade waste charges % of revenue 19 3 3 19

44 Revenue from trade waste charges % of revenue 4.6 1 1 1.0

F18 46 Economic real rate of return - Sge % 1.3 2 3 2.5 2.9

46a Return on assets - Sge % 1.0 4 3 1.8

48a Loan payment - Sge $/prop 37 1 2 83

49 Operating cost (OMA) per 100 km of main $'000 1,510 4 3 1,700

F12 50 Operating cost (OMA) per property - Note 9 $/prop 510 5 4 470 429

51 Operating cost (OMA) per kL c/kL 224 4 4 208

52 Management cost $/prop 154 3 3 164

53 Treatment cost $/prop 221 5 5 159

54 Pumping cost $/prop 77 4 4 59

55 Energy cost $/prop 22 2 2 34

56 Sewer main cost $/prop 57 4 3 51

F29 57 Capital Expenditure $/prop 10 5 5 186 212

NOTES :

1

2

3

4

5

6

7

7

8

9

10

11

SEWERAGE SYSTEM - Kyogle Council serves a population of 3,600 (1,830 connected properties) and has 3 sewage treatment works providing secondary treatment in Kyogle, Bonalbo and

Woodenbong which also services the Aboriginal community of Muli Muli. The system comprises 4,365 EP treatment capacity (Intermittent Extended Aeration (Activated Sludge) in Bonalbo and

Woodenbong and Trickling Filter in Kyogle), 9 pumping stations (13 ML/d), 10 km of rising mains and 52 km of gravity trunk mains and reticulation. 10% of effluent was recycled (Indicator 27)

and the treated effluent is discharged to river.

BPM IMPLEMENTATION - Kyogle Council achieved 100% implementation of the outcomes required by the NSW BPM Framework, however, Council needs to prepare a 30-year IWCM

Strategy, Financial Plan and Report in accordance with the July 2014 IWCM Check List (www.water.nsw.gov.au) to maintain 100% BPM Implementation.

Yes

PERFORMANCE - Residential growth for 2015-16 was 0.3% which is lower than the statewide median. The 2016-17 typical residential bill was $688 which was close to the statewide median

of $718 (Indicator 12). The economic real rate of return was 1.3% which was less than the statewide median (Indicator 46). The operating cost per property (OMA) was $510 which was above

the statewide median of $470 (Indicator 50). Sewage odour complaints were less than the statewide median of 0.9 (Indicator 21). Kyogle Council reported no public health incidents. 3 of 3

sewage treatment works were compliant at all times. Council complied with the requirements of the environmental regulator for effluent discharge. The current replacement cost of system

assets was $30M ($15,600 per assessment), cash and investments were $1M and revenue was $1.5M (excluding capital works grants).

LWUs are required to annually review key projections and actions in the later of their IWCM Strategy and financial plan and their Strategic Business Plan and

to annually 'roll forward', review and update their 30-year total asset management plan (TAMP) and 30-year financial plan.

MEDIANS

Yes

YES

YES*

FIN

AN

CE

100%

RANKING

CH

AR

AC

TE

RIS

TIC

S

Col 5 (National Median) is the median value for the 74 utilities reporting sewerage performance in the National Performance Report 2015-16 (www.bom.gov.au).

Col 3 rankings are on a % of LWUs basis - best reveals performance compared to all NSW LWUs (ie. Result in Col 1 is compared with all NSW LWUs).

EF

FIC

IEN

CY

Col 2 rankings are on a % of LWUs basis - best reveals performance compared to similar sized LWUs (ie. Result in Col 1 is compared with LWUs in Size Group 3).

Col 4 (Statewide Median) is on a % of connected properties basis- best reveals statewide performance (gives due weight to larger LWUs & reduces effect of smaller LWUs).

EC

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NA

TU

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OU

RC

E

MA

NA

GE

ME

NT

UT

ILIT

YE

NV

IRO

NM

EN

TA

L

EN

VIR

ON

ME

NT

AL

PE

RF

OR

MA

NC

E

SO

CIA

L

SE

RV

ICE

LEV

ELS

HE

ALT

HC

HA

RG

ES

& B

ILLS

Non-residential access charge - $552 (uniform access charge). Sewer usage charge - 103 c/kL.

Non-residential and trade waste volume was 28% of total sewage collected.

Non-residential revenue was 19% of revenue from access, usage & trade waste charges.

Compliance with Total N in Licence was 100%. Compliance with Total P in Licence was 100%.

Operating cost (OMA)/property was $510. Components were: management ($154), operation ($266), maintenance ($57), energy ($22) and chemical ($11).

Kyogle Council rehabilitations included 0.1% of its service connections.

Council has 7 fully qualified wastewater treatment operators who meet the NSW Certification requirements.

SEWERAGE SYSTEM -

BPM IMPLEMENTATION -

PERFORMANCE -

Kyogle Council TBL Sewerage Performance (page 2) 2015-16

(Results shown for 10 years together with Statewide Median and 2015-16 Top 20%)

COST RECOVERY

COMPLIANCE

CUSTOMER SERVICE/RELIABILITY

ENVIRONMENT

EFFICIENCY

NOTES:

1 Costs are in Jan 2016$ except for graphs 12 and 14, which are in Jan 2017$. LEGEND

State Median for all years

Top 20% for 2015-16 ×

0

61

122

183

244

305

366

427

489

06/07 08/09 10/11 12/13 14/15

(net

tonn

es C

O2

equi

vale

nts

per

1000

pr

oper

ties)

32. Net Greenhouse gas emissions WS & SGE - E12 Water Supply Sewerage Other

0

200

400

600

800

1000

1200

1400

1600

06/07 08/09 10/11 12/13 14/15

($/p

rope

rty)

57. Capital Expenditure - F29 Plant & Equipment (Acquisition) Renewals New Assets for Improved Standards New Assets for Growth

0

100

200

300

400

500

600

06/07 08/09 10/11 12/13 14/15

($/p

rope

rty)

50a. Operating cost OMA - F12 - Asset Type

0

100

200

300

400

500

600

06/07 08/09 10/11 12/13 14/15

($/p

rope

rty)

50. Operating cost OMA - F12 - Process

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

06/07 08/09 10/11 12/13 14/15

(per

100

0 pr

oper

ties)

8. Employees

0

20

40

60

80

100

06/07 08/09 10/11 12/13 14/15

(%)

27. Recycled water - W27

0.0

0.5

1.0

1.5

2.0

2.5

3.0

06/07 08/09 10/11 12/13 14/15

(per

100

0 pr

oper

ties)

21. Odour complaints

0

10

20

30

40

50

60

06/07 08/09 10/11 12/13 14/15

(pe

r 1

00

km

of m

ain

)

37a. Sewer overflows per 100km of main

0

10

20

30

40

50

60

06/07 08/09 10/11 12/13 14/15

(per

100

km o

f mai

n)

36. Sewer main breaks and chokes - A12

0

20

40

60

80

100

06/07 08/09 10/11 12/13 14/15

(%)

34. Compliance with BOD in licence

0

20

40

60

80

100

06/07 08/09 10/11 12/13 14/15

(%

) 35. Compliance with SS in licence

0

10

20

30

40

50

60

70

80

90

100

06/07 08/09 10/11 12/13 14/15

(%)

18. % Sewage treated that complied

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

06/07 08/09 10/11 12/13 14/15

(%)

46. Economic real rate of return - F18

0

100

200

300

07/08 09/10 11/12 13/14 15/16

(c /

kL)

14. Non-residential Sewer Usage Charge

0

100

200

300

400

500

600

700

800

07/08 09/10 11/12 13/14 15/16

($/

asse

ssm

ent)

12. Typical residential bill - P6

Management Mains Pump Stations Treatment Other Management Operation Maintenance Energy Chemicals Effluent Mgmt


Page 207

APPENDIX 5: DETAILED CUSTOMER AND METERED WATER USAGE DATA


Page 209

Table 85: Bonalbo customers and metered water usage

Customer Type Classification 2010 Connections

2010 Metered usage (kL/a)

2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections


Commercial No Sewer Discharge 1 65 1 133 1 25 1 15 1 13 1 19 1 1 1 2 1 4Commercial Non-Residential Sewer 4 524 4 358 4 247 4 186 4 475 4 364 4 208 4 563 4 348Commercial Single Dwelling 3 532 3 631 3 549 3 385 3 367 3 395 3 449 3 880 3 715Commercial Single Unit 1 22 1 21 1 16 1 96 1 67Commercial Trade Waste Discharge 6 1,697 7 1,891 7 1,681 7 1,227 7 1,672 9 2,096 7 1,179 8 1,886 8 2,141Total Bonalbo Village - Commercial 14 2,818 15 3,013 15 2,502 15 1,813 16 2,549 18 2,895 16 1,853 17 3,427 17 3,275Industrial No Sewer Discharge 2 96 2 60 2 69 2 110 2 106 2 134 2 104 2 93 2 111Industrial Trade Waste Discharge 1 106 1 84 1 109 1 76 1 102 2 203 2 120 2 123 2 80Total Bonalbo Village - Industrial 3 202 3 144 3 178 3 186 3 208 4 337 4 224 4 216 4 191Institution No Sewer Discharge 1 48 1 33 1 145 1 51 1 88 1 253 1 329 1 138 2 103Institution Non-Residential Sewer 7 842 8 783 8 492 8 376 8 274 8 377 8 522 8 314 8 159Institution Single Dwelling 1 163 2 175 1 13Institution Trade Waste Discharge 3 1,370 4 1,258 4 1,495 4 1,512 4 1,485 6 2,925 4 1,430 6 2,475 4 1,242Total Bonalbo Village - Institution 11 2,260 13 2,074 13 2,132 13 1,939 13 1,847 16 3,718 13 2,281 17 3,102 15 1,517Public Parks No Sewer Discharge 1 406 1 281 1 190 1 184 1 140 1 192 1 174 1 311 1 215Public Parks Non-Residential Sewer 1 44 1 92 1 259 1 44 1 65 1 132 1 188 1 345 1 393Total Bonalbo Village - Public Parks 2 450 2 373 2 449 2 228 2 205 2 324 2 362 2 656 2 608Residential Sewered Common Meter - Four Units 1 208 1 166 1 279 1 146 1 93 1 82 1 101 1 114 1 128Residential Sewered Dwelling with Dialysis 1 23 1 18 1 31 1 22 1 21 1 45 1 23 1 122 1 177Residential Sewered No Sewer Discharge 1 38 1 27 1 65 1 53Residential Sewered Non-Residential Sewer 1 0 1 0 1 0 1 0 1 0 1 0Residential Sewered Single Dwelling 142 17,097 142 13,215 147 15,499 149 16,015 150 16,233 157 19,281 153 16,302 157 18,383 155 16,813Residential Sewered Trade Waste Discharge 1 76 1 48 1 66 1 66 1 80 1 64 1 52 1 50 1 57Residential Sewered Vacant Land - No Meter 10 0 12 0 13 0 13 0 18 0 14 0 16 0 15 0Residential Sewered Vacant Land - Water Meter 1 0 1 0 1 2 1 1 2 185 2 291 4 67 6 140Total Bonalbo Village - Residential Sewered 145 17,404 157 13,447 164 15,875 167 16,251 168 16,428 181 19,695 174 16,796 181 18,801 181 17,368Residential Un-Sewered No Sewer Discharge 3 450 3 1,360 3 330 3 401 3 453 4 405 3 445 4 643 4 777Total Bonalbo Village 178 23,584 193 20,411 200 21,466 203 20,818 205 21,690 225 27,374 212 21,961 225 26,845 223 23,736

2018201720112010 20162015201420132012

Bonalbo Village


Page 210

Table 86: Kyogle customers and metered water usage



2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections

Metered usage (kL/a)

Commercial No Sewer Discharge 3 6 3 10 3 13 3 3 3 3 3 11 3 97Commercial Non-Residential Sewer 30 5,137 30 3,893 35 5,687 36 6,096 37 4,786 44 6,081 41 6,884 43 5,428 44 7,056Commercial Single Dwelling 1 202 1 231 1 391 1 35 1 21 2 153 1 27 2 42 2 119Commercial Trade Waste Discharge 20 8,002 21 6,738 27 8,468 29 8,912 29 9,673 40 12,884 34 17,141 40 18,883 39 19,625Total Kyogle Central PS1 - Commercial 51 13,341 52 10,862 66 14,552 69 15,053 70 14,493 89 19,121 79 24,055 88 24,364 88 26,897Industrial No Sewer Discharge 1 241 1 129 1 152 2 369 2 435 2 653 2 852 2 777 2 993Industrial Non-Residential Sewer 2 3,648 2 4,098 2 5,481 2 4,922 2 4,315 2 4,611 2 5,331 2 5,559 2 3,970Industrial Single Dwelling 2 255 2 199 2 190 2 198 3 399 3 774 3 563 3 834 3 880Industrial Trade Waste Discharge 2 172 3 257 5 401 5 448 5 491 7 1,199 5 1,451 7 2,469 6 4,905Industrial Vacant Land - Water Meter 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0Total Kyogle Central PS1 - Industrial 8 4,316 9 4,683 11 6,224 12 5,937 13 5,640 15 7,237 13 8,197 15 9,639 14 10,748Institution No Sewer Discharge 1 703 1 2 1 2 1 101 1 5 1 92 1 25 1 125 1 3Institution Non-Residential Sewer 10 1174 10 804 10 949 10 1223 10 1447 13 1891 12 1293 14 1222 16 1787Institution Trade Waste Discharge 3 242 3 328 4 691 4 473 4 504 4 497 4 423 4 460 4 581Total Kyogle Central PS1 - Institution 14 2,119 14 1,134 15 1,642 15 1,797 15 1,956 18 2,480 17 1,741 19 1,807 21 2,371Public Parks No Sewer Discharge 1 23 1 5 1 1092 2 55 2 105 2 126 2 43 2 48 2 31Public Parks Non-Residential Sewer 1 86 1 59 1 57 2 67 5 208 6 1313 5 667 6 1003 5 971Public Parks Trade Waste Discharge 1 1754 1 2091 1 1159 1 1844 1 2650 1 3008 1 3718 1 2012 1 1933Total Kyogle Central PS1 - Public Parks 3 1,863 3 2,155 3 2,308 5 1,966 8 2,963 9 4,447 8 4,428 9 3,063 8 2,935Residential Sewered Common Meter - Four Units 1 170 1 193 1 334 1 235 1 147 1 163 1 270 1 201 1 285Residential Sewered Common Meter - Six Units 1 366 1 125 1 394 1 385Residential Sewered Common Meter - Three Units 2 579 2 486 2 697 2 620 2 625 2 710 2 1,014 2 814 2 707Residential Sewered Common Meter - Two Units 1 284 1 215 1 249 1 258 1 228 1 232 1 365 1 412 1 317Residential Sewered No Sewer Discharge 1 33 1 172 1 126 3 308 2 15 2 16 2 8Residential Sewered Non-Residential Sewer 1 8 1 36 1 9Residential Sewered Single Dwelling 346 53,431 350 43,694 374 51,752 393 51,677 410 56,397 471 68,310 437 58,162 471 63,837 467 65,564Residential Sewered Single Unit 30 3,022 32 2,298 33 2,823 34 2,726 34 2,858 38 3,642 38 3,268 42 2,940 42 3,076Residential Sewered Trade Waste Discharge 1 91 1 146 1 147 1 164 1 155 1 182 2 167 2 76 2 138Residential Sewered Vacant Land - No Meter 12 0 12 0 13 0 13 0 25 0 15 0 21 0 17 0Residential Sewered Vacant Land - Water Meter 1 95 1 119 1 168 2 154 2 1,813 5 734 8 1,609Total Kyogle Central PS1 - Residential Sewered 381 57,577 399 47,032 426 56,130 447 55,971 464 60,704 545 74,067 502 65,207 549 69,460 544 72,098Residential Un-Sewered No Sewer Discharge 1 679 1 662 1 806 2 1879Total Kyogle Central PS1 457 79,216 477 65,866 521 80,856 548 80,724 570 85,756 677 108,031 620 104,290 681 109,139 677 116,928

2014 2015 2016 2017 20182010 2011 2012 2013

Kyogle Central PS1



2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections


Commercial No Sewer Discharge 1 449 1 413 1 535 1 531 1 556 1 639 1 751 1 896 1 1,092Commercial Trade Waste Discharge 1 383 1 156 1 165 1 156 1 138 1 149 1 137 1 46 1 148Total Kyogle-Geneva PS2 - Commercial 2 832 2 569 2 700 2 687 2 694 2 788 2 888 2 942 2 1,240Industrial No Sewer Discharge 1 366 1 169 1 300 1 362 1 333 2 299 2 212 2 265 1 208Residential Sewered Common Meter - Five Units 1 541 1 291 1 275 1 316 1 291 1 286 1 227 1 221 1 318Residential Sewered Common Meter - Two Units 1 92 1 85 1 93 1 111 1 104 1 148 1 202 1 251 1 396Residential Sewered Dwelling with Dialysis 1 110 1 91 1 96 1 78 1 75 1 88 1 71 1 67 1 56Residential Sewered No Sewer Discharge 1 0Residential Sewered Single Dwelling 182 31,225 184 25,580 200 32,059 206 33,585 210 35,209 235 40,667 218 32,855 237 36,884 228 36,730Residential Sewered Single Unit 1 134 1 97 1 171 1 70 1 73 2 141 2 90 2 41 2 24Residential Sewered Vacant Land - No Meter 5 0 5 0 6 0 6 0 9 0 6 0 9 0 6 0Residential Sewered Vacant Land - Water Meter 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 3 21Total Kyogle-Geneva PS2 - Residential Sewered 187 32,102 194 26,144 210 32,694 217 34,160 221 35,752 250 41,330 230 33,445 252 37,464 243 37,545Residential Un-Sewered No Sewer Discharge 27 10,048 28 6,394 32 7,440 32 9,333 33 10,417 43 15,362 35 9,180 42 12,869 37 9,447Residential Un-Sewered Single Dwelling 1 60 1 46 1 51 1 53 1 56 2 79 2 266 2 241 2 222Residential Un-Sewered Vacant Land - No Meter 2 0 2 0 2 0 2 0 3 0 2 0 2 0 2 0Residential Un-Sewered Vacant Land - Water Meter 1 0 1 62Total Kyogle-Geneva PS2 - Residential Un-Sewered 28 10,108 31 6,440 35 7,491 35 9,386 36 10,473 48 15,441 39 9,446 47 13,110 42 9,731Total Kyogle-Geneva PS2 218 43,408 228 33,322 248 41,185 255 44,595 260 47,252 302 57,858 273 43,991 303 51,781 288 48,724

2015 2016 2017 20182010 2011 2012 2013 2014

Kyogle-Geneva PS2


Page 211



2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections


Commercial Non-Residential Sewer 2 104 2 87 2 227 3 321 3 602 3 627 3 592 3 477 3 528Commercial Trade Waste Discharge 2 507 2 266 2 352 3 653 3 776 4 731 3 616 4 708 4 993Total Kyogle Gravity - Commercial 4 611 4 353 4 579 6 974 6 1,378 7 1,358 6 1,208 7 1,185 7 1,521Industrial No Sewer Discharge 3 4,739 3 4,016 4 4,056 4 4,253 5 6,097 4 5,155 5 9,286 6 10,192 6 16,572Industrial Non-Residential Sewer 1 133 1 178 1 141 1 462 1 120 1 137 1 226 2 131 2 167Industrial Single Dwelling 1 115 1 128 1 159 1 315 1 93 1 78 1 54 1 151 1 135Industrial Trade Waste Discharge 7 1,639 7 1,418 8 1,331 8 1,094 8 1,695 9 1,264 8 864 9 1,045 9 2,272Total Kyogle Gravity - Industrial 12 6,626 12 5,740 14 5,687 14 6,124 15 8,005 15 6,634 15 10,430 18 11,519 18 19,146Institution Common Meter - Four Units 1 111 1 326Institution No Sewer Discharge 1 0 1 0 2 2 2 1 2 1 2 9 2 6 2 0 2 1Institution Non-Residential Sewer 1 253 1 125 2 225 2 211 2 222 4 305 3 213 3 240 3 274Institution Single Dwelling 1 59 1 72 1 46 1 120 1 147 1 112 1 160Institution Trade Waste Discharge 7 6,588 7 5,842 7 7,285 8 11,222 8 11,190 8 10,225 8 10,777 8 9,409 8 10,051Total Kyogle Gravity - Institution 9 6,841 9 5,967 12 7,571 13 11,506 13 11,459 15 10,659 14 11,143 15 9,872 15 10,812Public Parks No Sewer Discharge 1 139 1 90 1 49 1 246 1 87 1 19 1 16 1 41 1 415Public Parks Non-Residential Sewer 1 2,222 1 1,742 2 1,232 2 1,106 2 1,971 2 3,080 2 2,549 2 2,453 2 2,307Total Kyogle Gravity - Public Parks 2 2,361 2 1,832 3 1,281 3 1,352 3 2,058 3 3,099 3 2,565 3 2,494 3 2,722Residential Sewered Common Meter - Six Units 1 311 1 273 1 232 1 218 1 210 1 281 1 297 1 330 1 401Residential Sewered Common Meter - Three Units 1 277 1 247 1 313 1 393 1 313 1 518 1 626 1 364 1 319Residential Sewered Dwelling with Dialysis 1 40 1 68 1 21Residential Sewered No Sewer Discharge 1 750 1 221 1 296 2 445 3 2,340 3 3,242 3 2,515 3 2,535 3 2,934Residential Sewered Non-Residential Sewer 1 33 1 33 1 23 1 34 1 36 1 68 1 40 1 76 1 77Residential Sewered Single Dwelling 276 45,458 283 35,099 293 43,045 297 42,184 302 44,555 326 49,784 311 46,424 323 47,529 323 48,241Residential Sewered Single Unit 10 747 12 861 12 944 12 1,081 12 1,029 10 814 12 845 12 956 12 883Residential Sewered Vacant Land - No Meter 7 0 7 0 7 0 7 0 9 0 7 0 9 0 7 0Residential Sewered Vacant Land - Water Meter 3 0 3 0 3 0 3 0 3 0 3 0 3 0 3 0 3 0Total Kyogle Gravity - Residential Sewered 293 47,576 309 36,734 319 44,853 324 44,355 330 48,483 355 54,747 339 50,747 354 51,858 352 52,876Residential Un-Sewered No Sewer Discharge 1 264 1 272 1 213 1 291 1 248 1 196 1 78 1 55 1 47

321 64,279 337 50,898 353 60,184 361 64,602 368 71,631 396 76,693 378 76,171 398 76,983 396 87,124

2015 2016 2017 20182010 2011 2012 2013 2014

Total Kyogle Gravity

Kyogle Gravity



2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections


Industrial No Sewer Discharge 1 140 1 201 4 12,560 1 163 3 8,152 2 9,040Institution No Sewer Discharge 5 413 5 175 5 329 5 692 5 728 5 488 5 401 5 405 5 402Public Parks No Sewer Discharge 3 114 3 110 3 179 3 134 3 94 3 80 3 33 3 18 3 21Residential Sewered No Sewer Discharge 14 3,358 14 2,240 14 2,358 15 3,401 16 3,278 20 5,500 17 3,260 20 4,533 19 6,306Residential Sewered Single Dwelling 14 2,381 15 2,457 15 2,907 15 2,804 15 2,853 16 3,017 16 2,765 16 3,055 16 4,635Residential Sewered Single Unit 2 277 2 179 2 205 2 244 2 272 2 285 2 275 2 198 2 179Residential Sewered Vacant Land - No Meter 1 0 1 0 1 0 1 0 2 0 1 0 2 0 1 0Residential Sewered Vacant Land - Water Meter 1 63Total Kyogle-Highfield PS4 - Residential Sewered 30 6,016 32 4,876 32 5,470 33 6,449 34 6,403 40 8,802 36 6,300 40 7,786 39 11,183Residential Un-Sewered No Sewer Discharge 1 73 1 38 2 40 2 55 2 139 2 91 4 613Residential Un-Sewered Vacant Land - Water Meter 1 33 1 295Total Kyogle-Highfield PS4 - Residential Un-Sewered 0 0 0 0 1 73 1 38 2 40 2 55 2 139 3 124 5 908

38 6,543 40 5,161 41 6,051 43 7,453 45 7,466 54 21,985 47 7,036 54 16,485 54 21,554

2010 2011 2012 2013 2014 2015 2016 2017 2018

Total Kyogle-Highfield PS4

Kyogle-Highfield PS4



2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections


Commercial No Sewer Discharge 1 101 1 210 2 533 2 469 2 541Commercial Non-Residential Sewer 1 48 1 8 1 22 1 15 1 2 1 0 1 0 1 1 1 0Commercial Trade Waste Discharge 2 1,301 2 1,063 2 1,296 2 1,494 2 1,377 2 1,771 2 1,525 2 1,775 2 1,244Total Kyogle-Newpark PS5 - Commercial 3 1,349 3 1,071 3 1,318 3 1,509 4 1,480 4 1,981 5 2,058 5 2,245 5 1,785Industrial No Sewer Discharge 1 0 1 2 1 1 1 6 1 3 1 0 1 0Residential Sewered Single Dwelling 21 4,989 22 3,485 25 4,921 26 5,676 28 5,705 32 8,555 29 5,424 32 6,883 30 6,508Residential Sewered Vacant Land - No Meter 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0Total Kyogle-Newpark PS5 - Residential Sewered 21 4,989 24 3,485 27 4,921 28 5,676 30 5,705 34 8,555 31 5,424 34 6,883 32 6,508Residential Un-Sewered No Sewer Discharge 6 4,742 6 2,509 6 3,327 6 3,541 6 4,541 6 4,500 6 3,609 6 3,698 6 3,410

30 11,080 33 7,065 37 9,566 38 10,728 41 11,727 45 15,042 43 11,094 46 12,826 44 11,703

2015 2016 2017 20182010 2011 2012 2013 2014

Total Kyogle-Newpark PS5

Kyogle-Newpark PS5


Page 212



2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections


Industrial Trade Waste Discharge 1 92 1 52 1 52 1 78 1 77 1 62 1 78Residential Sewered Single Dwelling 8 1,571 8 926 10 1,307 11 2,527 11 2,527 12 2,754 12 2,273 12 2,544 12 2,327

8 1,571 8 926 11 1,399 12 2,579 12 2,579 13 2,832 13 2,350 13 2,606 13 2,405

2010 2011 2012 2013 2014 2015 2016 2017 2018

Total Total Kyogle-Newpark PS5

Kyogle-Saville PS6



2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections


Commercial No Sewer Discharge 1 449 1 413 4 541 4 541 5 670 5 852 6 1,287 6 1,376 6 1,730Commercial Non-Residential Sewer 34 5,342 34 4,029 40 5,988 42 6,482 43 5,435 51 6,817 47 7,521 49 5,961 50 7,654Commercial Single Dwelling 1 202 1 231 1 391 1 35 2 121 3 364 2 187 3 235 3 348Commercial Trade Waste Discharge 27 10,890 28 8,925 34 11,195 37 12,112 37 12,730 50 17,000 43 20,114 51 23,160 50 23,924Total Kyogle - all areas - Commercial 63 16,883 64 13,598 79 18,115 84 19,170 87 18,956 109 25,033 98 29,109 109 30,732 109 33,656Industrial No Sewer Discharge 5 5346 5 4314 7 4508 9 5126 10 7067 13 18673 11 10516 14 19386 12 26813Industrial Non-Residential Sewer 3 3781 3 4276 3 5622 3 5384 3 4435 3 4748 3 5557 4 5690 4 4137Industrial Single Dwelling 3 370 3 327 3 349 3 513 4 492 4 852 4 617 4 985 4 1015Industrial Trade Waste Discharge 9 1811 10 1675 14 1824 14 1594 14 2238 18 2869 15 2442 18 3876 17 7554Industrial Vacant Land - Water Meter 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0Total Kyogle - all areas - Industrial 21 11,308 22 10,592 28 12,303 30 12,617 32 14,232 39 27,142 34 19,132 41 29,937 38 39,519Institution Common Meter - Four Units 1 111 1 326Institution No Sewer Discharge 7 1116 7 177 8 333 8 794 8 734 8 589 8 432 8 530 8 406Institution Non-Residential Sewer 11 1427 11 929 12 1174 12 1434 12 1669 17 2196 15 1506 17 1462 19 2061Institution Single Dwelling 1 59 1 72 1 46 1 120 1 147 1 112 1 160Institution Trade Waste Discharge 10 6830 10 6170 11 7976 12 11695 12 11694 12 10722 12 11200 12 9869 12 10632Total Kyogle - all areas - Institution 28 9,373 28 7,276 32 9,542 33 13,995 33 14,143 38 13,627 36 13,285 39 12,084 41 13,585Public Parks No Sewer Discharge 5 276 5 205 5 1320 6 435 6 286 6 225 6 92 6 107 6 467Public Parks Non-Residential Sewer 2 2308 2 1801 3 1289 4 1173 7 2179 8 4393 7 3216 8 3456 7 3278Public Parks Trade Waste Discharge 1 1754 1 2091 1 1159 1 1844 1 2650 1 3008 1 3718 1 2012 1 1933Total Kyogle - all areas - Public Parks 8 4,338 8 4,097 9 3,768 11 3,452 14 5,115 15 7,626 14 7,026 15 5,575 14 5,678Residential Sewered Common Meter - Six Units 1 311 1 273 1 232 1 218 1 210 2 647 2 422 2 724 2 786Residential Sewered Common Meter - Five Units 1 541 1 291 1 275 1 316 1 291 1 286 1 227 1 221 1 318Residential Sewered Common Meter - Four Units 1 170 1 193 1 334 1 235 1 147 1 163 1 270 1 201 1 285Residential Sewered Common Meter - Three Units 3 856 3 733 3 1010 3 1013 3 938 3 1228 3 1640 3 1178 3 1026Residential Sewered Common Meter - Two Units 2 376 2 300 2 342 2 369 2 332 2 380 2 567 2 663 2 713Residential Sewered Dwelling with Dialysis 1 110 1 91 1 96 1 78 1 75 2 128 1 71 2 135 2 77Residential Sewered No Sewer Discharge 16 4108 16 2462 17 2704 19 4021 21 5746 27 9052 23 5792 26 7339 26 9248Residential Sewered Non-Residential Sewer 1 33 1 33 1 23 1 34 1 36 1 68 2 48 2 112 2 86Residential Sewered Single Dwelling 880 143698 895 115734 955 142841 987 145208 1017 153111 1134 179403 1065 154620 1134 168470 1119 171939Residential Sewered Single Unit 43 4180 47 3435 50 4181 51 4284 51 4443 54 5157 56 4708 60 4425 60 4465Residential Sewered Trade Waste Discharge 1 91 1 146 1 147 1 164 1 155 1 182 2 167 2 76 2 138Residential Sewered Vacant Land - No Meter 31 0 31 0 33 0 33 0 51 0 35 0 47 0 37 0Residential Sewered Vacant Land - Water Meter 4 0 4 0 5 95 5 119 5 168 6 154 6 1813 9 734 15 1693Total Kyogle - all areas - Residential Sewered 954 154,474 1,004 123,691 1,069 152,280 1,106 156,059 1,138 165,652 1,285 196,848 1,199 170,345 1,291 184,278 1,272 190,774Residential Un-Sewered Vacant Land - Water Meter 2 33 2 357Residential Un-Sewered Vacant Land - No Meter 2 0 2 0 2 0 2 0 3 0 2 0 2 0 2 0Residential Un-Sewered Single Dwelling 1 60 1 46 1 51 1 53 1 56 2 79 2 266 2 241 2 222Residential Un-Sewered No Sewer Discharge 34 15054 35 9175 40 11053 40 13203 42 15246 53 20792 45 13668 52 17519 50 15396Total Kyogle - all areas - Residential Un-Sewered 35 15,114 38 9,221 43 11,104 43 13,256 45 15,302 58 20,871 49 13,934 58 17,793 56 15,975

1,109 211,490 1,164 168,475 1,260 207,112 1,307 218,549 1,349 233,400 1,544 291,147 1,430 252,831 1,553 280,399 1,530 299,187Total Kyogle - all areas

2017 2018

Kyogle - all areas

2010 2011 2012 2013 2014 2015 2016


Page 213

Table 87: Woodenbong and Muli Muli customers and metered water usage



2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections


Commercial Non-Residential Sewer 1 200 1 472 1 189 1 116 1 113 1 233 1 782 1 274 1 223Commercial Single Dwelling 28 9759 28 7994 28 9214 11 2148 28 7015 32 13159 29 10110 32 12409 29 11553Commercial Vacant Land - Water Meter 1 96 1 62 1 32 1 0 1 0 1 0 1 0 1 0Total Woodenbong-Muli Muli - Commercial 29 9,855 29 8,056 29 9,246 11 2,148 29 7,015 33 13,159 30 10,110 33 12,409 30 11,553

30 10,055 30 8,528 30 9,435 12 2,264 30 7,128 34 13,392 31 10,892 34 12,683 31 11,776

Residential Un-Sewered No Sewer Discharge 7 1136 7 816 7 1347 8 1969 9 3538 14 4821 11 2487 14 3686 11 3032Residential Un-Sewered Vacant Land - No Meter 1 0 1 0 1 0 2 0 2 0 2 0 2 0 2 0Total Woodenbong-Rising Main - Residential Un-Sewered 7 1,136 8 816 8 1,347 9 1,969 11 3,538 16 4,821 13 2,487 16 3,686 13 3,032

7 1,136 8 816 8 1,347 9 1,969 11 3,538 16 4,821 13 2,487 16 3,686 13 3,032

Commercial No Sewer Discharge 1 500 1 852 1 2073 1 448 1 556 1 457 1 345 1 722 1 806Commercial Non-Residential Sewer 2 2 2 10 2 2 2 3 2 1 2 4 2 2 2 1 2 2Commercial Vacant Land - No Meter 1 0 1 0 1 0Total Woodenbong-Village-Gravity - Commercial 3 502 3 862 3 2,075 3 451 3 557 3 461 4 347 4 723 4 808Industrial No Sewer Discharge 1 0 1 143 1 55 3 89 3 101 3 271 3 54Institution No Sewer Discharge 2 1,389 2 2,096 2 1,517 3 1,842 3 1,569 4 2,688 3 1,161 3 3,603 4 2,776Institution Non-Residential Sewer 3 20 3 14 3 29 3 41 3 38 3 31 3 10 3 9 3 33Institution Single Dwelling 1 620 1 247 1 383 1 383 1 354 1 424Institution Trade Waste Discharge 1 1169 1 953 1 897 2 1078 2 951 2 1034 2 732 2 741 2 630Total Woodenbong-Village-Gravity - Institution 6 2,578 6 3,063 6 2,443 9 3,581 9 2,805 10 4,136 9 2,286 9 4,707 10 3,863Public Parks No Sewer Discharge 1 261 1 308 1 316 1 293 1 430 1 365 1 531 1 387 1 512Public Parks Non-Residential Sewer 1 235 1 371Total Woodenbong-Village-Gravity - Public Parks 1 261 1 308 1 316 1 293 1 430 2 600 1 531 2 758 1 512Residential Sewered Dwelling with Dialysis 1 459Residential Sewered Single Dwelling 29 3562 30 3221 32 3085 34 3162 35 3370 37 3602 36 4471 38 3518 37 3622Residential Sewered Vacant Land - No Meter 1 0Residential Sewered Vacant Land - Water Meter 1 0 1 0 1 0 1 7Total Woodenbong-Village-Gravity - Residential Sewered 29 3,562 30 3,221 32 3,085 34 3,162 35 3,370 40 4,061 37 4,471 39 3,518 38 3,629Residential Un-Sewered No Sewer Discharge 3 353 3 193 3 271 5 2331 5 2475 8 4470 6 2683 8 3957 6 3329Residential Un-Sewered Vacant Land - No Meter 3 0 3 0 3 0 3 0 4 0 4 0 4 0 4 0Residential Un-Sewered Vacant Land - Water Meter 1 0 1 0 1 8 1 0 1 0 1 0 1 0 1 0Total Woodenbong-Village-Gravity - Residential Un-Sewered 3 353 7 193 7 271 9 2,339 9 2,475 13 4,470 11 2,683 13 3,957 11 3,329

42 7,256 47 7,647 50 8,190 57 9,969 58 9,692 71 13,817 65 10,419 70 13,934 67 12,195

Total Woodenbong-Muli Muli

2010 2011 2012 2013 2014 2015 2016 2017 2018

Woodenbong-Rising Main

Woodenbong-Muli Muli

Total Woodenbong-Muli Muli

Total Woodenbong-Village-Gravity

Woodenbong-Village-Gravity



2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


2016 Connections


2017 Connections


2018 Connections


Commercial No Sewer Discharge 1 1 1 1 1 1 1 0 1 1 1 0 1 0 1 1 1 24Commercial Non-Residential Sewer 1 176 1 213 1 39 1 308 1 7 4 549 3 658 4 518 3 463Commercial Single Dwelling 2 351 2 302 2 311 2 251 2 371 4 969 3 563 4 532 3 320Commercial Trade Waste Discharge 6 1043 6 852 6 822 6 954 6 1320 8 1550 6 1215 8 1089 7 1259Total Woodenbong Village PS1 - Commercial 10 1,571 10 1,368 10 1,173 10 1,513 10 1,699 17 3,068 13 2,436 17 2,140 14 2,066Industrial No Sewer Discharge 1 157 1 21 1 83 1 107 1 68 1 61 1 83 1 38 1 16Industrial Single Dwelling 1 92Industrial Trade Waste Discharge 1 309 1 137 1 153 1 197 1 148 1 120 1 300 1 70 2 78Total Woodenbong Village PS1 - Industrial 2 466 2 158 2 236 2 304 2 216 2 181 2 383 2 108 4 186Institution No Sewer Discharge 2 14 2 1 2 3 2 2 2 8Institution Non-Residential Sewer 3 19 3 12 3 37 3 23 3 19 4 147 3 17 4 121 3 10Institution Trade Waste Discharge 1 26 1 17 1 208 1 288 1 6 3 179 2 147 2 312 3 353Total Woodenbong Village PS1 - Institution 4 45 4 29 4 245 4 311 6 39 9 327 7 167 8 435 8 371Residential Sewered Common Meter - Four Units 1 379 1 190 1 240 1 244 1 385 1 320 1 226 1 128 1 124Residential Sewered Non-Residential Sewer 1 4Residential Sewered Single Dwelling 72 9281 73 7794 75 8824 76 8668 76 9279 98 11758 84 8963 98 10325 91 8612Residential Sewered Trade Waste Discharge 1 0 1 0Residential Sewered Vacant Land - No Meter 3 0 3 0 3 0 3 0 4 0 3 0 4 0 4 11Residential Sewered Vacant Land - Water Meter 2 17 2 5 2 50 2 91Total Woodenbong Village PS1 - Residential Sewered 73 9,660 77 7,984 79 9,064 80 8,912 80 9,664 107 12,099 90 9,194 106 10,503 98 8,838Residential Un-Sewered No Sewer Discharge 1 214 1 291 1 203 1 104 1 49 1 91 1 52 1 35 1 39

90 11,956 94 9,830 96 10,921 97 11,144 99 11,667 136 15,766 113 12,232 134 13,221 125 11,500

2015 2016 2017 20182010 2011 2012 2013 2014

Total Woodenbong Village PS1

Woodenbong Village PS1


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2011 Connections


2012 Connections


2013 Connections


2014 Connections


2015 Connections


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2017 Connections


2018 Connections


Commercial No Sewer Discharge 2 501 2 853 2 2,074 2 448 2 557 2 457 2 345 2 723 2 830Commercial Non-Residential Sewer 4 378 4 695 4 230 4 427 4 121 7 786 6 1,442 7 793 6 688Commercial Single Dwelling 30 10,110 30 8,296 30 9,525 13 2,399 30 7,386 36 14,128 32 10,673 36 12,941 32 11,873Commercial Vacant Land - Water Meter 1 96 1 62 1 32 1 0 1 0 1 0 1 0 1 0Commercial Vacant Land - No Meter 1 0 1 0 1 0Commercial Trade Waste Discharge 6 1,043 6 852 6 822 6 954 6 1,320 8 1,550 6 1,215 8 1,089 7 1,259Total Woodenbong-Muli Muli - all areas - Commercial 43 12,128 43 10,758 43 12,683 25 4,228 43 9,384 54 16,921 48 13,675 55 15,546 49 14,650Industrial No Sewer Discharge 1 157 1 21 2 83 2 250 2 123 4 150 4 184 4 309 4 70Industrial Single Dwelling 1 92Industrial Trade Waste Discharge 1 309 1 137 1 153 1 197 1 148 1 120 1 300 1 70 2 78Total Woodenbong-Muli Muli - all areas - Industrial 2 466 2 158 3 236 3 447 3 271 5 270 5 484 5 379 7 240Institution Common Meter - Four Units 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0Institution No Sewer Discharge 2 1,389 2 2,096 2 1,517 3 1,842 5 1,583 6 2,689 5 1,164 5 3,605 6 2,784Institution Non-Residential Sewer 6 39 6 26 6 66 6 64 6 57 7 178 6 27 7 130 6 43Institution Single Dwelling 0 0 0 0 0 0 1 620 1 247 1 383 1 383 1 354 1 424Institution Trade Waste Discharge 2 1,195 2 970 2 1,105 3 1,366 3 957 5 1,213 4 879 4 1,053 5 983Total Woodenbong-Muli Muli - all areas - Institution 10 2,623 10 3,092 10 2,688 13 3,892 15 2,844 19 4,463 16 2,453 17 5,142 18 4,234Public Parks No Sewer Discharge 1 261 1 308 1 316 1 293 1 430 1 365 1 531 1 387 1 512Public Parks Non-Residential Sewer 1 235 1 371 0 0Total Woodenbong-Muli Muli - all areas - Public Parks 1 261 1 308 1 316 1 293 1 430 2 600 1 531 2 758 1 512Residential Sewered Common Meter - Four Units 1 379 1 190 1 240 1 244 1 385 1 320 1 226 1 128 1 124Residential Sewered Dwelling with Dialysis 1 459Residential Sewered Non-Residential Sewer 1 4Residential Sewered Single Dwelling 101 12,843 103 11,015 107 11,909 110 11,830 111 12,649 135 15,360 120 13,434 136 13,843 128 12,234Residential Sewered Vacant Land - No Meter 3 0 3 0 3 0 3 0 5 0 3 0 4 0 4 11Residential Sewered Vacant Land - Water Meter 3 17 3 5 3 50 3 98Total Woodenbong-Muli Muli - all areas - Residential Sewered 102 13,222 107 11,205 111 12,149 114 12,074 115 13,034 146 16,160 127 13,665 144 14,021 136 12,467Residential Un-Sewered Vacant Land - Water Meter 1 0 1 0 1 8 1 0 1 0 1 0 1 0 1 0Residential Un-Sewered Vacant Land - No Meter 4 0 4 0 4 0 5 0 6 0 6 0 6 0 6 0Residential Un-Sewered No Sewer Discharge 11 1,703 11 1,300 11 1,821 14 4,404 15 6,062 23 9,382 18 5,222 23 7,678 18 6,400Total Woodenbong-Muli Muli - all areas - Residential Un-Sewere 11 1,703 16 1,300 16 1,821 19 4,412 21 6,062 30 9,382 25 5,222 30 7,678 25 6,400

169 30,403 179 26,821 184 29,893 175 25,346 198 32,025 256 47,796 222 36,030 253 43,524 236 38,503

2014 2015 2016 2017 2018

Woodenbong-Muli Muli - all areas

2010 2011 2012 2013

Total Woodenbong-Muli Muli - all areas

C C in 2014. · 2020. 7. 24. · Kyogle Council – IWCM Issues Paper Page 104 in annual average...

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Transcript of C C in 2014. · 2020. 7. 24. · Kyogle Council – IWCM Issues Paper Page 104 in annual average...