St. Elizabeth Parish Plan- Sep 13 2011 · 2 Draft St. Elizabeth WS PPLan – October 12 2011 1...

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Draft St. Elizabeth WS PPLan – October 12 2011

ST. ELIZABETH

WATER SUPPLY PLANS

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1 Introduction

St. Elizabeth is located on the south western side of the Jamaica and is bordered on the east

by Manchester, on the north by the parishes of Trelawny and St. James and on the west by

Westmoreland; the Caribbean Sea forms the southern boundary of the parish. St. Elizabeth

has a diverse terrain, with deserted beaches all along the southern coastline, with fishing

villages and small sandy coves hidden among the rocks; the southern border of the Cockpit

Country lies to the north of the parish, with the Santa Cruz range falling away sharply to

the semi-arid savannah of the Pedro Plain.

The principal towns are Lacovia, Santa Cruz, Newmarket, Siloah, Malvern and Maggotty.

On the northern boundary of the parish is Accompong, a Maroon settlement.

The bauxite/alumina industry has played a major role in the economic activity of the

parish. It has a deep water pier at port Kaiser, located near Alligator Pond, where alumina

and bauxite are exported. The Alpart alumina refinery is located at Nain in the parish and

is the largets alumina plant in the island.

Apart from bauxite mining, the parish also produces a large quantity of Jamaica's sugar;

there are two sugar factories in the parish - . St. Elizabeth is known for its farming activities

and is called the “feeding basket” of Jamaica. The parish also cultivates crops such as

cassava, corn, peas, beans, pimento, ginger, tobacco, tomato, rice sweet potatoes and coffee.

As a result of the fertile soil that provide for grazing fields, pastoralism is possible.

Livestock include goats, sheep, hogs, and cattle, horses. Fishing is a major industry in the

parish, as is tomato canning; a plant is at Bull Savannah

The parish has become a notable tourist destination since the 1990s, with most visitors

going to the Treasure Beach area. The Appleton rum distillery, near Cockpit Country in the

north of the parish, is also a tourist destination. Ecological tourism along the Black and YS

rivers, and in the Great Morass has been developed in recent years

National Water Commission (NWC) produces some 380 million gallons of water per month

in St. Elizabeth through twenty (21) wells and six (6) surface sources. The average billed

volume is only 54 million gallons per month which translates to an average non-revenue

water (NRW) of 326 million gallons per month i.e. 86% of production. This unacceptable

level of NRW has had an adverse impact on the level of service provided to the people of

the parish and on its financial performance and that of NWC.

NWC now provides water to some 50% of the population in St. Elizabeth, which is a

marginal improvement over that in 2001 when the level of coverage was 44%. The

reliability of service to those who are served by NWC is estimated to average 16 hours per

day.

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A Water Supply Improvement plan has been prepared for the parish and is presented in

this document. The WSIP for the parish will involve an expenditure of $6.15b over the next

five years in carrying out a number of water supply rehabilitation and upgrading works. A

substantial portion of the proposed works is aimed at addressing the unacceptable level of

NRW through the replacement of major sections of the aged and undersized water supply

infrastructure and improvement in water supply pressure management. It is planned to

increase water supply coverage to xx% of the parish population by end 2015 and service

reliability to 22 hours per day at that time.

2 Existing Water Supply System

2.1 Water Resource

Surface Water

Some 10% of the water abstracted in the parish is obtained from surface sources. The

following are the main surface sources in the parish:

Black River

Y. S. River

South Elim River

Wallywash Pond

The Black River is a

Ground Water

There is a significant amount of groundwater available in the alluvial aquifers in St.

Elizabeth.

An enormous quantity of brackish to saline water is available in the limestone aquifers west

of Nain.

2.2 Water Supply Systems

The parish of St. Elizabeth is supplied with potable water from 21 wells, with a combined

average output of 13.2 mgd. This accounts for 94% of the total average water production

for the parish. The major wells in the parish are

The combined reliable yield from the six surface sources is 0.9 mgd.

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The water supply network throughout the parish is aged and undersized, contributing to

unacceptable level of service there. Information on the water supply network is

summarized in table 2.1 below.

Figure 2.1 – St. Elizabeth Water Supply

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Table 2.1 – Summary Information on St. Elizabeth Pipe Network

PIPE

DIAMETER

Total Length

(km)

Portion of

Total

1/2 inch 0.83 0.06%

3/4 inch 2.41 0.19%

1 inch 59.15 4.62%

1.5 inch 35.97 2.81%

2 inch 368.33 28.78%

3 inch 265.73 20.76%

4 inch 349.92 27.34%

6 inch 107.59 8.41%

8 inch 54.48 4.26%

10 inch 14.99 1.17%

12 inch 15.14 1.18%

14 inch 2.11 0.16%

20 inch 3.30 0.26%

TOTAL 1,280

Total length of the transmission and distribution pipelines in the parish is 1,280 km, with

over 75% being 2 inches, 3inches and 4 inches or 4 inches.

Pipes less than 4 inches are mainly made of galvanized iron pipes and are over 40 years old

and are badly encrusted and corroded in sections. The larger sized pipes are made of either

cast iron or asbestos cement..

3 NON-REVENUE WATER LEVELS

Set out in figure 3.1 is the annual water balance for St. Elizabeth. This was derived from the

water balances that were prepared for each of the water supply systems in the parish. The

water balances are based on flow measurements that were conducted at sections of the

water supply network and examinations of customer records.

NWC water production facilities provide approximately 20.79 M cubic meters of water per

year to the water supply network in St. Elizabeth i.e. 4,573.8 M gallons per year. Physical

losses amount to 13.13 M cubic meters (2,888.6M gallons) per year. This represents 63% of

the amount produced.

Revenue water in the parish is only 2.95M cubic meters which is only 14% of the water

produced.

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It would be noted that 4.58M cubic meters of water is attributed to unauthorized

consumption (i.e. 22% of production). This is largely due to illegal connections to some of

the cross country transmission pipelines to obtain water for irrigation.

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Figure 3.1 – Water Balance for St. Elizabeth

System Input Volume

Unbilled Authorized

Consumption

m3/year4,713,2365.0%Error Margin [+/-]:

Error Margin [+/-]:

2,946,621 m3/year

0.0%

5.8%Error Margin [+/-]:24.3%

Error Margin [+/-]:

Error Margin [+/-]: 3.0%

5.8%

Error Margin [+/-]:

Water Losses

17,843,296 m3/year

Revenue Water

17,843,296 m3/year

2,946,621 m3/year

Non-Revenue Water


Physical Losses

m3/year13,130,060

0.0%Error Margin [+/-]:

m3/year0

Commercial Losses


20,789,917 m3/year


Unauthorized Consumption

128,455 m3/year

0 m3/year

4,584,781 m3/year

Unbilled Unmetered Consumption

0 m3/year

Unbilled Metered Consumption

Billed Unmetered Consumption

235,731 m3/year

2,946,621 m3/year

Water Balance in m3/year

Home

Customer Meter Inaccuracies and Data Handling Errors

Billed Metered Consumption

m3/year2,710,890Billed Authorized

Consumption

Authorized

Consumption

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4 Water Requirement

4.1 Parish Population

General

In 2001 the population in St. Elizabeth was 146,400, which was a 0.05% increase over the 145,650

in 1991. Based on an annual population growth rate of 0.05%, it is estimated that the population

in the parish in 2010 is 147,060 persons.

There were 40,934 households in 2001 of which 18,055 had piped water (44%). There are now

22,089 customer accounts of which some 20,764 are domestic accounts. Based on this

information, it is estimated there was a 15% increase in the number of dwellings with piped

since 2001, an average annual increase of 1.5%. It is estimated that 50% of the population of the

parish now has piped water.

Demand Centres

The enumeration districts (EDs) that were used in the 2001 population census were used to

establish priority areas that will be targeted to be provided with water supply. EDs with

population densities in excess of 150 persons per square kilometres were grouped to form these

demand centres.

Figure 4.1 – Demand Centres

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EnumerationDistrict (ED)- Population Data

Pipeline

Pump Station

Subdivision

WATER DEMAND CENTRESLight Blue Shaded EDs-Pop > 150p/sq Km-Priority given to fully supply

TYPES OF DATA

As far as possible, each demand centre (DC) is linked to a water supply system. It is related to a

water distribution system that now serves it or has the potential to serve by it. .

Figure 4.2 shows “supply zones” with the DCs related to existing and potential water supply

systems in the parish. These system groupings form the basis for water supply/demand

analyses and project development and packaging.

Figure 4.2 – Supply Zones - Demand Centres /Water Supply Systems

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Set out in table 4.1 is information showing the population in each supply zone, indicating

estimates for 2010, 2015, 2030.

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Table 4.1 – Population Projections by Supply Zones Supply Zone POP 2010 POP 2015 2020 2030

Elderslie/Niagara -

Siloah-Aberdeen W/S 5,847 5,862 5,876 5,906

Maggotty WS 3,087 3,095 3,102 3,118

Union/Balaclava W/S 5,657 5,671 5,685 5,714

Newton-Haughton WS 2,194 2,199 2,205 2,216

Black River WS 13,915 13,949 13,984 14,054

Burnt Savannah W/S 6,687 6,704 6,721 6,754

Bogue-Elim 3,978 3,988 3,998 4,018

Santa Cruz/Southampton 20,591 20,643 20,695 20,798

Pepper W/S 4,535 4,546 4,558 4,581

Parottee/Hopewell W/S 6,256 6,272 6,287 6,319

Malvern/Munro 19,440 19,489 19,537 19,635

Pedro Plains 5,882 5,897 5,912 5,942

New Forest 15,823 15,863 15,902 15,982

New Market/Brighton WS 5,779 5,793 5,808 5,837

TOTAL 119,671 119,971 120,271 120,874

The estimated total 2010 population in the DCs is shown to be 119,671 (82% of parish

population)

4.2 Water Supply

4.2.1 Current Water Requirement

The current water supply situation in St. Elizabeth is reflected in the information that is

presented in table 4.2 below. It can be seen that, overall, there is sufficient water in the

parish to meet the water requirement, even with the existing technical losses (leaks, tank

overflows, etc).

The average daily water production in the parish is 14.1 million gallons. The average day

base water consumption (domestic, commercial, institutional, etc), is 5.5 million gallons and

the technical water losses is estimated to be 7.2 million gallons per day (mgd). The current

water requirement in the parish is estimated to be 12.7 mgd; therefore, there is an estimated

surplus of some 1.4 million gallons per day in the parish.

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Table 4.2 – Current Water Supply Situation

Supply Zone Supply Population Base Demand Technical Losses Deficit

Elderslie/Niagara 42,000 640 25,600 19,139 (2,739)

Siloah-Aberdeen W/S 840,000 5,847 268,828 139,566 431,606

Maggotty WS 504,000 3,087 141,931 203,537 158,532

Union/Balaclava W/S 230,000 5,657 260,092 11,946 (42,038)

Newton-Haughton WS 1,080,000 2,194 100,874 746,021 233,106

Black River WS 1,637,000 13,915 639,752 1,140,063 (142,815)

Burnt Savannah W/S 691,000 6,687 307,448 487,392 (103,840)

Bogue-Elim 648,000 3,978 182,897 419,325 45,778

Santa Cruz/Southampton 1,541,000 20,591 946,732 1,045,035 (450,768)

Pepper W/S 1,080,000 4,535 208,506 49,563 821,932

Parottee/Hopewell W/S 606,000 6,256 287,632 122,448 195,920

Malvern/Munro 1,000,000 19,440 893,793 214,939 (108,732)

Pedro Plains 2,404,000 5,882 270,455 1,143,238 990,306

New Forest 1,824,000 15,823 727,499 1,433,114 (336,612)

New Market/Brighton WS 17,000 5,779 265,686 6,970 (255,656)

TOTAL 14,102,000 119,671 5,502,124 7,163,156 1,433,981

ST. ELIZABETH - YR 2010

4.3 Water Requirement in 2015 and 2030

The water supply situation in day of maximum demand in 2030, if no water supply improvement works are undertaken, is summarized in table 4.3. Maximum day demand is based on 120% of the average day demand. Table 4.3 – Water Supply Situation in 2030 (Maximum Day/No Change)

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Supply Zone Supply Population Base Demand Technical Losses Deficit

Elderslie/Niagara 42,000 646 25,857 19,139 (2,997)


Maggotty WS 504,000 3,118 172,029 203,537 128,435



Black River WS 1,637,000 14,054 775,416 1,140,063 (278,479)

Burnt Savannah W/S 691,000 6,754 372,645 487,392 (169,037)

Bogue-Elim 648,000 4,018 221,681 419,325 6,994

Santa Cruz/Southampton 1,541,000 20,798 1,147,494 1,045,035 (651,529)

Pepper/Goshen W/S 1,080,000 4,581 252,721 49,563 777,716


Malvern/Munro 1,000,000 19,635 1,083,328 214,939 (298,268)

Pedro Plains 2,404,000 5,942 327,807 1,143,238 932,954

New Forest 1,824,000 15,982 830,546 1,433,114 (439,660)

New Market WS 17,000 5,837 322,026 6,970 (311,996)

TOTAL 14,144,000 121,520 6,643,522 7,182,296 318,182

ST. ELIZABETH - YR 2030 - Maximum Day

As is noted, there would be significant water supply shortfalls in most of the supply zones

Tables 4.4 shows the expected water supply situation on the day of maximum demand in 2015 if an aggressive programme is undertaken to reduce the technical losses to at least 30% of water production by then and water supply production remains at the current level. Table 4.4 shows the similar situation in 2030, with adjustments in the base demand driven by growth in the population. Table 4.3 – Water Supply Situation in 2015 (Maximum Day/Technical Losses Reduced to at least 30% of Supply)

Supply Zone Supply Base Demand

Technical

Losses

Total Water

Requirement Deficit

Elderslie/Niagara 42,000 30,797 27,650 58,447 (16,447)


Maggotty WS 504,000 170,743 151,200 321,943 182,057



Black River WS 1,637,000 769,623 491,100 1,260,723 376,277

Burnt Savannah W/S 691,000 369,861 207,300 577,161 113,839

Bogue-Elim 648,000 220,025 194,400 414,425 233,575

Santa Cruz/Southampton 1,541,000 1,138,922 462,300 1,601,222 (60,222)

Pepper/Goshen W/S 1,080,000 250,833 49,563 300,396 779,604


Malvern/Munro 1,000,000 1,075,236 300,000 1,375,236 (375,236)

Pedro Plains 2,404,000 325,359 1,143,238 1,468,597 935,403

New Forest 1,824,000 875,183 547,200 1,422,383 401,617

New Market WS 17,000 278,070 5,100 283,170 (266,170)

TOTAL 14,102,000 6,577,521 4,208,713 10,786,234 3,315,766

ST. ELIZABETH - YR 2015 - Max Day Technical Losses @ 30%

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Table 4.4 – Water Supply Situation in 2030 (Maximum Day/Technical Losses Reduced to at least 30% of Supply)

Supply Zone Supply Base Demand

Technical

Losses

Total Water

Requirement Deficit

Elderslie/Niagara 42,000 31,029 12,600 43,629 (1,629)


Maggotty WS 504,000 206,434 151,200 357,634 146,366



Black River WS 1,637,000 930,499 491,100 1,421,599 215,401

Burnt Savannah W/S 691,000 447,174 207,300 654,474 36,526

Bogue-Elim 648,000 266,017 194,400 460,417 187,583

Santa Cruz/Southampton 1,541,000 1,376,993 462,300 1,839,293 (298,293)

Pepper/Goshen W/S 1,080,000 303,265 324,000 627,265 452,735


Malvern/Munro 1,000,000 1,299,994 300,000 1,599,994 (599,994)

Pedro Plains 2,404,000 393,369 721,200 1,114,569 1,289,431

New Forest 1,824,000 996,655 547,200 1,543,855 280,145

New Market WS 17,000 386,431 5,100 391,531 (374,531)

TOTAL 14,102,000 7,941,198 4,118,166 12,059,364 2,042,636

ST. ELIZABETH - YR 2030 - Maximum Day Technical Losses @ 30%

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5 Summary of the Water Supply Improvement Plans

5.1 Introduction

It is planned to undertake a number of water supply improvement works in St. Elizabeth to

address supply deficiencies and to improve overall operational efficiencies. The focus will

be on reducing the unacceptable high level of technical losses, largely due to the aged water

supply infrastructure; strengthening the transfer capacities of critical water transmission

mains, and facilitating supply flexibility between water supply systems; significantly

improved pressure management through the establishment of pressure zones; and water

supply extensions to areas that are not now been served.

A comprehensive audit of the water supply systems in St. Elizabeth is to be undertaken in

the early stages of the improvement works. This will include establishing district metered

areas (DMAs) and setting up monitoring systems.

Wells in St. Elizabeth will be part of the proposed islandwide Well Inspection and

Rehabilitation Programme, aimed at assessing the conditions of existing wells and carrying

out rehabilitation works to ensure sustained supplies from these sources.

5.2 Proposed Projects and Cost

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5.3 Economic Analysis

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6 Water Supply Projects

6.1 Set Up and Detailed Audit of the St. Elizabeth Water

Supply System

The level of NRW in the parish is unacceptably high. As shown in the sections above, the

overall NRW i

In order to proceed with the audit of the network and to obtain reliable and accurate

information on users and consumption, the following activities is required to be implemented

within the Parish during the Audit Phase:

Technical Area:

• Network survey to define and locate pipes (material and size) & fittings (valves, PRV, fire hydrants) to draw up the network inventory. Then all the information gathered on site will be transferred in Geographic Information System (GIS) following the NWC specifications.

• Investigation of all the NWC facilities (production facilities, reservoirs and pumping stations). All defects and anomalies detected and remedial works for repairs and/or upgrading have must be clearly stated for every facility.

• Flow & pressure measurements as well as level measurement of reservoirs at production facilities, on the trunk mains and various off-takes.

• Leak detection campaign on the entire network and mapping of leaks detected to further decide for pipe section replacement.

• Establishment and set-up of network models complying with the network operation and measurements carried out.

• Network partition into District Metering Area (DMA) to monitor flows and NRW control with definition of equipment (valves and bulk meters) to be installed.

• Setting-up of pressure management program including evaluation of existing pressure zones and Pressure Reducing Valves (PRV) and definition new pressure areas with location for new equipment.

Commercial Area:

• “Door to Door” Consumer survey audits to ascertain specific elements of the water supply among the residential & commercial users: to locate the NWC users (mapping under GIS), to check the status and condition of water meters installed on site, to gather other relevant information regarding the supply and to find out illegal connections.

• CS analysis to check the reliability and accuracy of the NWC database, to analyze trends of consumption and users and to establish the initial billable consumption.

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• Consumption profiles measuring campaign to analyze the apparent losses engendered by the customer metering policies and thereof to optimize the invoicing /revenues of NWC by defining new metering policies for domestic and commercial users.

• Specific investigation on site to check the discrepancies between the CS database and the field, mainly for the temporary and permanent disconnected accounts as well as for the accounts with zero/low consumption.

6.2 Cost of Audit

The total cost to undertake the proposed set up and audit of the St. Elizabeth water supply

system is $92M. A breakdown is provided in the table below.

Activity Estimated

Cost ($M)

1 Network Survey (including leak

detection/Pressure Survey and

Management

20

2 Establishment of DMA 50

3 Customer Mapping and audits 10

Sub-Total 80

4 Administrative and Other Cost 12

TOTAL 92

6.3 Expected Benefits

The detailed audit of the St. Elizabeth Water Supply system will provide information that

will be used to help in defining detailed NRW reduction intervention activities. The results

of the audit will be used to target the most critical sections of the parish water supply

system that require attention and assist in scheduling of the required works.

The information will be used to populate the asset database for the parish which will form

a critical part of the asset management system (AMS) that will be established for St.

Elizabeth. A fully functional AMS will be a valuable operational tool that can be used to

sustain the benefits that will be derived from the various projects and activities that are set

out in this document.

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6.4 Elderslie-Niagara Demand Zone (SE-1)

6.4.1 System Description

The Elderslies-Niagara Water Supply System is supplied by water from southern St. James

T

6.4.2 Service Area

Some of the communities supplied by this system include Cedar Spring.

6.4.3 Water Requirement

The current population in the DC in St. Elizabeth that is served by the Elderslie-Niagara

system is estimated to be 640 persons and this is not expected to increase much more by

2030. There is a supply deficit of just .

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6.4.4 Addressing the Supply Deficiencies

Efforts will be made to reduce the level of technical losses on the Elderslie-Niagra Water Supply system. It will be necessary to extend service from the Maggotty Supply Zone where there is a supply surplus.

6.4.5 Cost for Improvements

The estimated total cost for the improvement works is $38.2M as shown below.

Activity Qnty Cost ($)Establish Pump Station sum 6,000,000

Install 150 mm PVC pipeline 2,000 20,010,000

Upgrade Distribution Mian 600 5,847,000

Sub-total 31,857,000

Engineering and Other Cost 6,371,400

TOTAL 38,228,400

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6.5 Siloah-Aberdeen Demand Zone (SE-2)


The Siloah-Aberdeen (Benlomond) Water Supply system is supplied by the Benlomond

Spring and the River, with a combined average output of 0.84 mgd

6.5.2 Service Area

Some of the communities supplied by this system include Benlomond, Siloah, Windsor,

Thornton, Bagdale Mtn. Road, Raheen, Aberdeen Spring and Borewood. It is estimated that

the current population in the area is 2,500 persons.

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The current population of the area served by the Siloah-Aberdeen system is estimated to be

5,847 persons and this is expected to marginally increase to 5,906 by 2030. There is minimal

commercial activity in this region. The current estimated base average water requirement

(domestic, commercial, etc.) is 0.27mgd, while the projected water demand is expected to

increase to 0.33 mgd in the maximum day in 2030. Additional information for years 2010,

2015 and 2030 provided below.

Year Supply Base Demand

Technical

Losses

Total Water

Requirement Deficit

2010 840,000 268,828 139,566 408,394 431,606

2015 840,000 269,500 139,566 409,066 430,934

2030 840,000 325,834 139,566 465,400 374,600

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It should be noted that the overall NRW on this system is 80% of water produced. The

technical losses account for 20% of the production, while commercial losses account for 60%

of production. Focus will clearly have to be focused on reducing the commercial losses.


Efforts will be made to reduce the level of technical losses on the Siloah-Aberdeen (Benlomond) Water Supply system and to upgrade the water supply network to ensure that there is sufficient distribution capacity to transfer across the supply system. The proposed works are set out brelow.

In addition to the proposed works, additional work will be done to reduce the commercial losses. This will be included in the activities set out in section 5.1.

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Tank Relocation

Pipeline Replacement

Distribution Network Replacement

Distribution Network Replacement

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Activity Qnty CostReplace some 3 km of 200mm DI pipeline 3,000 36,000,000

Relocate 20,000 gallon steel water storage tank

from Williamsfield to Abeedeen 6,000,000

Rehabiliation of Treatment Facilities 1,000,000


Engineering and Other Cost 8,600,000

TOTAL 51,600,000

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6.5.6 Economic Assessment

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ST ELIZABETH - SILOAH-ABERDEEN WS

PARAMETER 2011 2012 2015 2020 2025 2030

WITHOUT PROJECT

SUPPLY TO EXISTING CUSTOMERS

Production from Existing Sources

Plant Capacity 840,000 840 840 840 840 840 840

Output 306,600 306,600 306,600 306,600 306,600 306,600

Plant Capacity Factor 0.50% 70.0% 70% 69% 67% 65% 64%

Available Annual Production 214,620 213,547 210,360 205,153 200,075 195,123

Population 0.05% 5,850 5,853 5,862 5,876 5,891 5,906

Ratio of Population Served/Population 62.0% 62% 65% 75% 83% 83% 83%

Population Served 5% 3,625 3,810 4,417 4,882 4,895 4,907

Average Consumption per Person 40 40 40 40 40 40 40

Total Consumption 59,808 62,861 72,878 80,549 80,751 80,953

79,409 79,012 77,833 75,907 74,028 72,196

SUPPLY REQUIRED - WITHOUT PROJECT Leakage 161,642 169,894 196,969 217,701 218,246 218,792

Unmet Demand 19,602 16,152 4,955 (4,643) (6,723) (8,758)

Supply Surplus/Shortfall Required W/O NRW

Reduction 52,978 43,653 13,391 (12,548) (18,171) (23,669)

WITH PROJECT

SUPPLY AVAILED BY PROJECT

Production from New Sources

Plant Capacity 0.0

Plant Capacity - - - - - -

Plant Capacity Factor 95% 95% 95% 95% 95% 95% 95%

Available Annual Production - - - - - -

Benefit from UFW Reduction & Control

Leakage Level 63% 63% 32% 30% 30% 30%

20%

Additional Supply Availed - - 64,673 67,700 66,025 64,391

Benefit from Plant Rehab

Plant Capacity 95%

Additional Water Availed - - 80,910 86,117 91,195 96,147

Additional Supply

Supply Available from Project - - 145,583 153,817 157,220 160,538

Supply Required - - - 4,643 6,723 8,758

Additional Supply Sold - - - 4,643 6,723 8,758

Surplus/Shortfall - - - - - -

Additional Billed Water Sales - - - 4,643 6,723 8,758

% Commercial for Existing Areas 13% 13% 13% 13% 13% 13%

Sales to Domestic - - - 4,039 5,849 7,619

Sales to Commercial - - - 604 874 1,138

Total Billed Water Sale - - - 4,643 6,723 8,758

Domestic - - - 4,039 5,849 7,619

Commercial - - - 604 874 1,138

AVERAGE TARIFF

Domestic 400.00 400.00 400.00 400.00 400.00 400.00

Commercial 1,000.00 1,000.00 1,000.00 1,000.00 1,000.00 1,000.00

ADDITIONAL REVENUE - - - 1,997,365 2,892,335 3,767,517

Collection Efficiency 90.0%

Domestic - - - 1,454,148 2,105,717 2,742,878

Commercial - - - 543,216 786,618 1,024,638

OTHER BENEFITS - - 9,348,198 9,563,676 9,642,982 9,719,995

Operational Improvements

Energy Cost W/O Project 50 - - 15,330,000 15,330,000 15,330,000 15,330,000

Energy Cost With Project 48 - - 14,716,800 14,716,800 14,716,800 14,716,800

Savings - - 613,200 613,200 613,200 613,200

Reduction in Production - - 145,583 149,175 150,496 151,780

Cost of Production 60

Savings in Production Cost 8,734,998 8,950,476 9,029,782 9,106,795

NET BENEFIT - - 9,348,198 11,561,041 12,535,317 13,487,512

Capital Cost 51,600,000 10,320,000 10,320,000 - - -

Total Cost - 10,513,500 10,513,500 193,500 193,500 193,500

NET BENEFIT OF THE PROJECT - (10,513,500) (1,165,302) 11,367,541 12,341,817 13,294,012

NPV OF PROJECT @ 10% 33,900,789

IRR OF PROJECT 26.2%

28


NET BENEFIT OF THE PROJECT -

NPV OF PROJECT @ 10% 33,900,789


29


6.6 Maggotty Water Demand Zone (SE-3)


The Maggotty Water Supply system is supplied by the Maggotty Well which has an

average output of 0.5 mgd. Set out below is a schematic of this water supply system.

6.6.2 Service Area

Some of the communities supplied by this system include Maggotty, Dry River, Cameron

Hill, Red Hills and Maggotty Pass.


The current population of the area served by the Maggotty Water Supply System is 3,087

persons and this is expected to increase to 3,118 persons by 2030. There is a current water

supply surplus in the Maggotty Supply Zone which will be further improved with the

proposed works to reduce the level of technical losses.

Year Supply Population

Base

Demand

Technical

Losses

Surplus/

Deficit

2010 504,000 3,087 141,931 203,537 158,532

2015 504,000 3,095 170,743 151,200 182,057

2020 504,000 3,118 206,434 151,200 146,366


It is planned to utilize the excess capacity of the Maggotty Supply Zone to upgrade the

level of service to areas such as White Hall and Carisbrooks and optimize the water

distribution system. This will involve upgrading the transmission facilities and

rehabilitating water storage tanks at Whitehall and Carisbrook.

It is also planned to link the Maggotty Supply System with that for Newton-Haughton. The

surplus will also be used to augment the Elderslie-Niagra Supply Sysytem.

30



The estimated total cost for the proposed improvement works is $277M as shown below.

Activity Qnty Cost ($)

Rehab 100,000 gallon tank at White Hill 8,000,000.00

Rehab 100,000 gallon tank at Carisbrook 8,000,000.00

Install booster and appurtenances at Cameron Hill 20,000,000.00

Install 3.5Km 6” DI line from Maggoty to tank at

Carisbrook

3,500 61,438,356.00

Install 3 Km 6” DI line from Cameron Hill to tank at

White Hill

3000 52,661,448.00

Install 4.6 Km 6" transmission line and

appurtenances from Maggotty to Newton

4,600 80,747,553.60

Engineering and other costs 46,169,471.52

TOTAL 277,016,829.12

31



6.7 Union/Balaclava Demand Zone (SE-4)


The Union/Balaclava Water Supply system is supplied by the Union Well which has an

average output of 0.23 mgd. Set out below is a schematic of this water supply system

6.7.2 Service Area

Some of the communities supplied by this system include


The current population in the area served by the Union Water Supply System is 5,657

persons and this is expected to increase to 5,714 persons by 2030.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 230,000 5,657 260,092 11,946 (42,038)

2015 230,000 5,671 312,891 11,946 (94,837)

2030 230,000 5,714 378,296 11,946 (160,241)

Based on the average water demand and current supply, there is now a shortfall of 42,038

gallons per day. The water supply shortfall in the day of maximum demand in 2030 is

estimated to be 0.16 mgd.


It is planned to augment the Union-Balaclava Water Supply system with the Siloah-

Aberdeen water supply system, in order to utilize the surplus water from the Siloah-

Aberdeen, by connecting these two systems. There will be an upgrading of the transmission

32


system with the Union Balaclava system to ensure an adequate transfer of water across the

distribution network.

The water storage at St. Pauls will be rehabilitated to reduce losses due to leaks and to

optimize the water supply system.




Increase the capacity of tank at Union to 60,000 gallons Sum 11,000,000.00

Procure and install new pump, motor, and S/G. Rehabilitation

of electrical system at Union

Sum 10,000,000.00

Rehabilitation of tank at St Paul’s to include fittings and

appurtenances

Sum 8,000,000.00

Install 7.6 Km 8” DI transmission line from Benlomond to Union

and interconnect

7,600 168,714,436.80

Ugrade 14.5 Km Marlborough #1 distribution lines to 6” 14,500 254,530,332.00

Ugrade 4.6 Km Marlborough #2 transmission mains to 6” 4,600 80,747,553.60

Sub-Total 532,992,322.40


TOTAL 639,590,786.88

33




NPV OF PROJECT @ 10% (217,876,723)

IRR OF PROJECT -5.4%

34


6.8 Black River Demand Zone (SE-5)


The Black River Water Supply system is supplied by the YS and the Hannah Springs, and

the Dalintober and Luana Wells, with a combined average output of 1.64 mgd. Set out

below is a schematic of this water supply system

6.8.2 Service Area

Some of the communities supplied by this system include :

Black River, Dalintober, Crawford Hill, Top Galleon Beach, Cambridge, Lewis Town,

Sandy Ground, Speculation, Brompton, Oxford, Spring Park, Pondpen, Fyffes Pen,

Cotterwood, Sellington, Fuctic Grove, New Town, Crane Road, Parottee Beach, Luana,

Baptist, point, Middle Quarters, Bailey Ground, Y.S, New Holland, Shrewsberry and

Gragie.


The current population of the area served by the Black River Water Supply system is 13,915

and this is expected to increase to 14,054 by 2030.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 1,637,000 13,915 639,752 1,140,063 (142,815)

2015 1,637,000 13,949 769,623 491,100 376,277

2030 1,637,000 14,054 930,499 491,100 215,401

The level of technical losses on the Black River system is significant, estimated to be some

70% of production. It is planned to reduce this to at least 30% of production.


The high level of technical losses in the Black River Supply Zone is largely due to the aged infrastructure, which breaks frequently and where there are a number of leaks. It is

planned to replace major sections of the water distribution system and the transmission

main.

35


Additional water is available from the YS Spring and is available to augment the water

supply system.

36


37



The estimated total cost for the improvement works is $1,172M as shown below.


Replace 10.5 Km 8” decayed AC main from Sandy Ground to Black

River with 10” DI

10,500 334,496.29

Install variable speed drive at Dalintober pumping station Sum 24,000,000.00

Replace/upgrade pipeline from Y/S intake to Middle Quarters with

200mm pipeline

9,500 216,172,500.00

Replace and upgrade pipeline Hannah Spring – Lewis Town: 6 Km

150mm PVC

6,000 84,042,000.00

Replace and upgrade pipeline Sellington – Cotterwood: 1.3 Km

150mm PVC

1,300 18,209,100.00

Replace and upgrade pipeline Sellington – Shrewbury: 1.7Km 200mm

PVC

1,700 30,023,700.00

Replace and upgrade pipeline Speculation – Cambridge: 2.2 Km

200mm PVC

2,200 38,854,200.00

Replace and upgrade pipeline Brompton – Brompton Mtn: 2Km

200mm PVC

2,000 35,322,000.00

Replace and upgrade pipeline Speculation – Hodges: 2.7Km 200mm

PVC

2,700 47,684,700.00

Replace and upgrade pipeline Speculation – Spring Park: 3 Km

200mm DI

3,000 66,597,804.00

Upgrade line 7 Km from Black River to Luana to 250mm 7,000 222,997,530.00

Upgrade 2.2 Km of pipeline from Luana to Middle Quarters to

250mm.

2,200 70,084,938.00

Upgrade 7.2 Km 4” distribution lines in Black River 7,200 122,362,228.80

Sub-Total 976,685,197.09

Engineering and other costs: 195,337,039.42

TOTAL 1,172,022,236.51



NPV OF PROJECT @ 10% (217,876,723)


38


6.9 Burnt Savannah Water Demand Zone


The Burnt Savannah Water Supply system is supplied by the Burnt Savannah Well, which

has an average output of 0.69 mgd. Set out below is a schematic of this water supply system

6.9.2 Service Area

Some of the communities supplied by this system include : Knoxwood, Cuffies Pen, Middlesex, Lacovia, Holland Mountain, Holland Village, Dry Harbour, Burton, Frenchman, Punches


The current population in the Burnt Savannah Demand Zone is shown below, along with

the water supply situation in 2010 (based on average demand) and in 2015 and 2030 based

on maximum day demand if the current level of technical losses are maintained.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 691,000 6,687 307,448 1,143,238 (759,687)

2015 691,000 6,704 369,861 1,143,238 (822,100)

2030 691,000 6,754 447,174 1,143,238 (899,412)


The level of technical losses in the Burnt Savannah Water Supply System is some 70.5% of

production. It is planned to replace sections of the undersized and aged water supply

network in order to reduce the high level of technical losses to below 30% of production.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 691,000 6,687 307,448 1,143,238 (759,687)

2015 691,000 6,704 369,861 207,300 113,839

2030 691,000 6,754 447,174 207,300 36,526

39


In addition the main from Burnt Savannah to Knoxwood will be replaced and upgraded

from 1 ½ inches to 150mm diameter.

The water storage steel tank at Holland, which is defective and leaks in sections, will be

repaired and the float valve replaced.


The estimated total cost for the improvement works is $127.3 M as shown below.

Activity Qnty Cost

Rehabilitate steel tank at Holland, include install float valve Sum 500,000.00

Replace distribution mains with 100mm PVC pipelines 6,000 58,470,000.00

Upgrade 3 Km pipeline from Burnt Savannah to Knoxwood

to 4” DI

3,000 50,984,262.00

Sub-Total 109,954,426.20

Engineering Costs 21,990,852.40

Total 131,945,114.40

40




NPV OF PROJECT @ 10% 59,093,096


6.10 Bogue-Elim Water Demand Zone


The Bogue-Elim Water Supply System is supplied by the Bogue well and the Red Ground

Spring. The average combined output from these sources is 0.65 mgd.

6.10.2 Service Area

The areas that now served by the Bogue-Elim Water Supply System include Bogue, Elim,

Cabbage Valley, Brase River, Pipe Piece, George Valley, E3 Road, College Road, Longcaster,

Red Ground, Air House Road


The current population in the Bogue Elim Demand Zone is shown below, along with the

water supply situation in 2010 (based on average demand) and in 2015 and 2030 based on

maximum day demand if the current level of technical losses are maintained.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 648,000 3,978 182,897 419,325 45,778

2015 648,000 3,988 220,025 419,325 8,650

2030 648,000 4,018 266,017 419,325 (37,342)

41



The level of technical losses in the Bogue Elim Water Supply System is some 64.5% of

production. The proposed work will involve rehabilitating the 20,000 gallon water storage

tank at Cabbage Valley and replacement of the aged 2 inch diameter pipeline from Two

mile wood to Elim. Provision has been made to replace sections of the water supply

netwoork.

.

There is concern about the condition of the Bogue Well, with the possible existence of a cavity about this well. An urgent inspection is required. Provision has been made for this inspection and the possible replacement of this well.

With an aggressive programme to reduce technical losses to 30% of production by 2015, the resulting water supply situation on maximum day in 2015 and 2030 are shown below.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 648,000 3,978 182,897 419,325 45,778

2015 648,000 3,988 220,025 194,400 233,575

2030 648,000 4,018 266,017 419,325 194,400 The surplus capacity of this system could potentiall augment the Santa Cruz Water Supply System to serve that Demand Zone.

42





Rehab 20,000 gallon storage tank at Cabbage Valley Sum 8,000,000.00

Upgrade 11Km 2” lines to 4” from Two Mile Wood to Elim 11,000 186,942,294.00

Inspect Bogue well & provide for its replacement sum 20,000,000.00

Replace distribution mains with 100mm PVC 2,000 19,490,000.00

Sub-Total 234,432,294.00


Total 281,318,752.80


NET BENEFIT OF THE PROJECT J$ -

NPV OF PROJECT @ 10% J$ (79,206,556)


43


Santa Cruz/South Hampton Demand Zone


6.10.8 Service Area

The communities that comprise the Santa Cruz/South Hampton Demand Zone, some which

are Water Supply System include:

South Hampton, Lovely Point, North Hampton, Leeds, Beadles Blvd, Oliver Park, Glenco

Housing Scheme, Contemporary Housing Scheme, Longwood, Ashwood, Jerusalem

Housing Scheme, Sevens Corner, Waterloo, Burnt Ground, Beadles Heights, Santa Cruz,

Park, Rocky Hill, New River, Dr. Rock, Brighton, Booxwood, Bybrook


The current population in the Santa Cruz/South Hampton Demand Zone is shown below,

along with the water supply situation in 2010 (based on average demand) and in 2015 and

2030 based on maximum day demand if the current level of technical losses are maintained.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 1,541,000 20,591 946,732 1,045,035 (450,768)

2015 1,541,000 20,643 1,138,922 1,045,035 (642,957)

2030 1,541,000 20,798 1,376,993 1,045,035 (881,028)


The level of technical losses in the Santa Cruz/South Hampton Water Supply System is some

68% of production. It is planned to replace sections of the aged water supply network and

establish pressure zones in order to reduce the high level of technical losses to below 30%

of production.

44


After completing the pipeline replacement and establishing pressure zone by 2015, the water

supply situations on the maximum day demand in 2015 and 2030 are shown below.

It would be noted that there is a supply deficit that remains despite reduction in technical losses

to 30% of production.

In order to address the supply deficit in the Santa Cruz/South Hampton Demand Zone, it is

planned to augment the Santa Cruz/South Hampton Demand Zone with water from the Pepper

Goshen Water Supply System. Another option that will be explored is to augment the supply

with water from the limited excess available from the Bogue Elim Water Supply System.

The improvement work will include the construction of a 350,000 gallon water storage tank at

Burnt Ground.

45




Activity Qnty Cost ($)Inspect Santa Cruz Well and provide for

replacementsum 25,000,000

Replace transmission main along main roads with

300mm DI pipeline2,000 45,860,000

Replace distribution mains in sections of supply

network with 150mm PVC main6,000 60,030,000

Install 200mm transmission line along main street2,000 31,720,000

Southampton - supply and install new pumps,

motors and S/G; Rehabilitation of electrical and

procure spare D/W pump sum

33,500,000

Santa Cruz - Installation of air valves, PRV's,

PSV's, isolating valves to minimize technical

losses sum

20,000,000

Erect 350,000 gallon tank at Burnt Ground sum 100,000,000

Install 300mm transmission main from Goshen 8,000 183,440,000

Sub-total 499,550,000

Engineering and Other Costs 99,910,000

TOTAL 599,460,000

6.11 Economic Assessment


NPV OF PROJECT @ 10% 63,589,589


46


Pepper/Goshen Demand Zone


The Pepper/Goshen Water Supply System is supplied by water from the Pepper wells.

6.11.2 Service Area

Some of the communities that are now supplied by the Pepper/Goshen Water Supply System

include Pepper, Goshen, Content, Phantilands, Bungo Hill, Grosmond, Mitcham, Wilton


The current population in the Pepper/Goshen Demand Zone is shown below, along with




Base

Demand

Technical

Losses

Surplus/

Deficit

2010 1,080,000 4,535 208,506 49,563 821,932

2015 1,080,000 4,546 250,833 49,563 779,604

2030 1,080,000 4,581 303,265 49,563 727,172


It is planned to replace the pipeline from Goshen to Wilton, replace the 3 inch diameter

main to Phantilands, and the 4 inch main to Bungo Hill. The water storage tank on the

water supply network is to be repaired, a level of automation of the pumping facilities as

well as the installation of a variable speed drive.

47



The estimated total cost for the improvement works is $ 389 M as shown below.

Activity Qnty Cost ($)Installation of 150mm replacement pipeline from

Goshen to Wilton6,000 75,240,000

Installation of 200mm DI replacement pipeline

from Pepper to Phantilands 11,500 182,390,000

Install 250 mm DI replacement pipeline from

Goshen to Bungo Hill 3,000 30,015,000

Upgrade and relocate Pepper tank to 200,000

gallonssum 36,000,000

Install feedback level control automation on new

tanksum 500,000

Sub-total 324,145,000


TOTAL 388,974,000



NPV OF PROJECT @ 10% (198,798,281)


48


6.12 Parottee/Hopewell Demand Zone


The Parottee/Hopewell Water Supply system is supplied by water from the Parotte Well

and the Hopewell Well which have a combined output of 0.6 mgd.

6.12.2 Service Area


The current population in the Parottee/Hopewell Demand Zone is shown below, along

with the water supply situation in 2010 (based on average demand) and in 2015 and 2030

based on maximum day demand.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 606,000 6,256 287,632 122,448 195,920

2015 606,000 6,272 346,022 122,448 137,530

2030 606,000 6,319 418,352 122,448 65,200


The level of technical losses in the Parottee/Hopewell Water Supply System is under 30%

of production. However, there is need to improve the transfer capacity across the demand

zone and to strengthen the transfer capacity to areas such as Treasure Beach.

49



The estimated total cost for the improvement works is $ 406.1 M as shown below.


Upgrade 3.3 Km distribution line: Barbury Hall to Cherry

Gardens to 4” PVC

Sum 45,017,280.00

Upgrade 4.3 Km distribution line: Stonefield to Barbury Hall

to 4” PVC

11,000 58,658,880.00

Upgrade 3.5 Km distribution line: Brownberry Lane to

Brucefield to 4” PVC

sum 47,745,600.00

Upgrade 5.3 Km transmission line to 8” from Hopewell well

to Parottee and from Hopewell well to Williamsfield

2,000 117,656,120.40

Install 8.5 Km 6” distribution line from Hopewell to Fort

Charles

149,207,436.00

Construct 200,000 gallon tank 50,000,000.00

Sub-Total 468,285,316.40


Total 561,942,379.68


NET BENEFIT OF THE PROJECT J$ -

NPV OF PROJECT @ 10% J$ (178,180,650)


50


6.13 Malvern/Munro Demand Zone


The Malvern Munro Water Supply System is the system targeted to supply the Malvern

Munro Demand Zone. This water supply system is supplied by water from the Park Lee

Wells. There is series of lift from these wells to the Malvern No. Pump Stations, where

water is further lifted through to the Malvern No. 2 Pump Station.The Malvern No. 2 Pump

Station pumps water to the Munroe water storage tank.

6.13.2 Service Area

The areas supplied by the Malvern/Munro Water Supply System include : Mountainside,

Corby, Southfield, Manningsfield, Top Hill, Seaview, Flagaman, St. Mary’s, Belleview,

Yardley Chase, Hampton, Bethleham, Munro, Malvern, Brown Berry Lane, Round Hill,

Parklee, Bantin, Epping Forest, Congo Hole, Red Bank, Port Sea, Melksham


The current population in the Malvern/Munro Demand Zone is shown below, along with




Base

Demand

Technical

Losses

Surplus/

Deficit

2010 1,000,000 19,440 893,793 214,939 (108,732)

2015 1,000,000 19,489 1,075,236 214,939 (290,175)

2030 1,000,000 19,635 1,299,994 214,939 (514,933)

The level of technical losses is some 21,5% of production, however commercial losses are

some 65.6% (see below). There is extensive theft of water by farmers who connect to the

51


transmission main on this supply system, particularly the sections between Malvern No 1

to Malvern No 2 tanks.

The level of service on this system is poor, aggravated by the theft of water by farmers


The level of commercial losses from the Malvern/Munro System is unacceptably high. The

transmission main between Malvern No. 1 and Malvern No. 2 Pump Stations runs cross-

country, in the vicinity of a number of farms. Illegal connections are made to this pipeline,

mainly from air valves located on the pipeline. Despite aggressive efforts over the year to

remove these connections and to relate with these farmers, the problem persists.

It is being proposed to re-route the transmission main along the roadway to minimize the

opportunity for to make illegal connections to NWC transmission main.

52





Install 12 Km 20" transmission from ParkLee to Munroe

tank along roadway

12,000 667,030,392.00

Install 2 delivery pumps at Park Lee sum 30,000,000.00

Sub-Total


Total 836,436,470.40

53




NPV OF PROJECT @ 10% 59,814,114


54


6.14 Pedro Plains Demand Zone


The Pedro Plains Demand Zone will be supplied by the Pedro Plains Water Supply System.

This water supply system is supplied by the Little Park, Newell and the Hounslow Wells.

The combined output from these three sources is 2.4 mgd.

6.14.2 Service Area

The area that comprise the Pedro Plains Demand Zone are : Treasure Beach, Bluntas,

Beacon, Ridge Pen,Newcombe Valley, Greenfield, Watchwell,Hopewell, Barbury Hall,

Stonefield, Cherry Gardens, Lewis Town


The current population in the Pedro Plains Demand Zone is shown below, along with the


maximum day demand if the current level of technical losses are maintained.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 1,824,000 5,882 270,455 1,143,238 410,306

2015 1,824,000 5,897 325,359 1,143,238 355,403

2030 1,824,000 5,942 393,369 1,143,238 287,393

The technical losses on the Pedro Plains Water Supply system is some 48% of production


The proposed works will seek to address the supply deficiencies in the Demand Zone, these deficiencies include technical losses of some 48% of production, lack of water supply to the communities such as Stonefield, Cherry Gardens, Charlesburg and Brown Berry. Sections of the water supply network will be replaced. For example, the existing 1 ¼” diameter galvanized pipeline between Brucefield and Babury Hall is old and has many leaks on it; it will be one section of the network that will be immediately replaced.

55


It is planned to fully integrate the Hounslow Well into supply system by strengthening the transmission mains from this well.




Upgrade 7.5 Km distribution line from Newell to Calabash

Bay to 8” DI

7,500 166,494,510.00

Upgrade line 5 Km from Hounslow to Claremont Park to 4”

DI

5,000 84,973,770.00

Replace 16Km of 4” lines in the Treasure Beach area 16,000 271,916,064.00

Procure 50 HP standby turbine, motor and starter sum 5,000,000.00

Sub-Total 528,384,344


Total 634,061,212.80

56



57


6.15 New Forest Demand Zone


The New Forest Demand Zone is supplied with water by the New Forest Wells with a

combined output of 1.8 mgd

6.15.2 Service Area

The areas that are served by the New Forest Water Supply System includes areas such as New Forest, Comma Pen, Bull Savannah, Bent Town, Ballards Valley, Dunder Hill,

Cheapside, Morningside, Rowe’s Corner, Alligator Pond, Duff House, Exeton, Ridge,

Thatchwalk, Lease Land, Tryall, Baseeda, Chocolate Hole


The current population in the New Forest Demand Zone is shown below, along with the


maximum day demand if the current level of technical losses is maintained.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 1,824,000 15,823 727,499 1,433,114 (336,612)

2015 1,824,000 15,863 875,183 1,433,114 (484,297)

2030 1,824,000 15,982 996,655 1,433,114 (605,769)

The water supply deficit is noted above.


The level of technical losses on the New Forest Water Supply System is some 79% of

production. It is planned to replace sections of the undersized and aged water supply

network in order to reduce the high level of technical losses.

58


Efforts will be made to reduce the level of technical losses to below 30% of production. With this achieved by 2015, the water supply situation in the Demand Zone is expected to be as set out in the table below.


Base

Demand

Technical

Losses

Surplus/

Deficit

2010 1,824,000 15,823 727,499 1,433,114 (336,612)

2015 1,824,000 15,863 875,183 547,200 401,617

2030 1,824,000 15,982 996,655 547,200 280,145



Activity Qnty Cost ($)Install 1.5 Km 10” DI transmission line from Bull

Savannah to Ridge1,500 34,132,500

Replacement of sections of the water supply

network with 100 mm PVC Pipes6,000 58,470,000

Pressure management sum 5,000,000



TOTAL 117,123,000

59



60


6.16 New Market Demand Zone


There is no current supply to the New Market Demand Zone

6.16.2 Service Area

The communities in the New market Demand Zone include New Market, Mocho and

Lewisville.


The current population in the New Market Demand Zone is 5,779 persons and this is

expected to increase to 5,837 persons by 2030. This translates to a water requirement of

some 0.46 mgd (assuming technical losses of some 30%).


A well was constructed and capped at Whitehall near New Market. It is planned to equip

this well and construct a 150mm transmission main to New Market from this well site. In

addition, it is planned to construct a water storage tank for this system at Mocho.


The estimated total cost for the improvement works is $299 M as shown below.

61


New Market


Equip well at Whitehall 30,000,000

Install 150 mm transmission main from from Whitehall

Well to New Market11,000 174,460,000

Erect 100,000 gallon tank at Mocho to gravity feed to

New Market sum35,000,000

Provision for distribution network refurbishing (100mm

PVC Pipes)1,000 9,745,000

Sub-total 249,205,000


TOTAL 299,046,000


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6.17 Ginger Hill Demand Zone


There is no current supply to the Ginger Hill Demand Zone

6.17.2 Service Area

The communities in the Ginger Hill Demand Zone include New Market, Mocho and

Lewisville.


The current population in the Ginger Hill Demand Zone is 2,772 persons and this is

expected to marginally increase to about 2,749 in 2030. This translates to a water

requirement of some 0.22 mgd based on the maximum day demand in 2030 (assuming

technical losses of 30%).


It is planned to extend supply from the proposed New Market water supply system to the

Ginger Hill Demand Zone. This would involve constructing a transmission main to the

Ginger Hill Area and installing distribution mains.

63




Ginger Hill


Install 150mm PVC main 7,000 70,035,000

Provision for constructing distribution network 3,000 29,235,000



TOTAL 119,124,000


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6.18 Essex Valley Demand Zone


At present, there is no water supply to the Essex Valley Demand Zone

6.18.2 Service Area

The communities in the Essex Valley Demand Zone include Long Hill, Warmister, Content,

Stephen’s Run, Nain, Myersville, Essex Valley,


The current population in the Essex Valley Demand Zone is 2,772 persons and this is

expected to marginally increase to about 2,749 in 2030. This translates to a water

requirement of some 0.22 mgd based on the maximum day demand in 2030 (assuming

technical losses of 30%).


It is planned to extend supply from the proposed New Market water supply system to the

Ginger Hill Demand Zone. This would involve constructing a transmission main to the

Ginger Hill Area and installing distribution mains.

St. Elizabeth Parish Plan- Sep 13 2011 · 2 Draft St. Elizabeth WS PPLan – October 12 2011 1...

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Transcript of St. Elizabeth Parish Plan- Sep 13 2011 · 2 Draft St. Elizabeth WS PPLan – October 12 2011 1...