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Draft St. Elizabeth WS PPLan – October 12 2011
ST. ELIZABETH
WATER SUPPLY PLANS
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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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
Error Margin [+/-]: 11.8%
Physical Losses
m3/year13,130,060
0.0%Error Margin [+/-]:
m3/year0
Commercial Losses
Error Margin [+/-]: 0.0%
20,789,917 m3/year
Error Margin [+/-]: 25.0%
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
Supply Zone Supply Population Base Demand Technical Losses Deficit
Elderslie/Niagara 42,000 646 25,857 19,139 (2,997)
Siloah-Aberdeen W/S 840,000 5,906 325,834 139,566 374,600
Maggotty WS 504,000 3,118 172,029 203,537 128,435
Union/Balaclava W/S 230,000 5,714 315,246 11,946 (97,192)
Newton-Haughton WS 1,080,000 2,216 122,265 746,021 211,715
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
Parottee/Hopewell W/S 606,000 6,319 348,627 122,448 134,925
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)
Siloah-Aberdeen W/S 840,000 323,400 139,566 462,966 377,034
Maggotty WS 504,000 170,743 151,200 321,943 182,057
Union/Balaclava W/S 230,000 312,891 11,946 324,837 (94,837)
Newton-Haughton WS 1,080,000 121,351 324,000 445,351 634,649
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
Parottee/Hopewell W/S 606,000 346,022 181,800 527,822 78,178
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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Draft St. Elizabeth WS PPLan – October 12 2011
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)
Siloah-Aberdeen W/S 840,000 391,001 139,566 530,567 309,433
Maggotty WS 504,000 206,434 151,200 357,634 146,366
Union/Balaclava W/S 230,000 378,296 69,000 447,296 (217,296)
Newton-Haughton WS 1,080,000 146,717 324,000 470,717 609,283
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
Parottee/Hopewell W/S 606,000 418,352 181,800 600,152 5,848
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
5.3 Economic Analysis
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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
• 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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
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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Draft St. Elizabeth WS PPLan – October 12 2011
6.5 Siloah-Aberdeen Demand Zone (SE-2)
6.5.1 System Description
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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Draft St. Elizabeth WS PPLan – October 12 2011
6.5.3 Water Requirement
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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Draft St. Elizabeth WS PPLan – October 12 2011
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.
6.5.4 Addressing the Supply Deficiencies
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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Draft St. Elizabeth WS PPLan – October 12 2011
Tank Relocation
Pipeline Replacement
Distribution Network Replacement
Distribution Network Replacement
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Draft St. Elizabeth WS PPLan – October 12 2011
6.5.5 Cost for Improvements
The estimated total cost for the improvement works is $51.6M as shown below.
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
Sub-total 43,000,000
Engineering and Other Cost 8,600,000
TOTAL 51,600,000
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Draft St. Elizabeth WS PPLan – October 12 2011
6.5.6 Economic Assessment
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Draft St. Elizabeth WS PPLan – October 12 2011
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
Draft St. Elizabeth WS PPLan – October 12 2011
NET BENEFIT OF THE PROJECT -
NPV OF PROJECT @ 10% 33,900,789
IRR OF PROJECT 26.2%
29
Draft St. Elizabeth WS PPLan – October 12 2011
6.6 Maggotty Water Demand Zone (SE-3)
6.6.1 System Description
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.
6.6.3 Water Requirement
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
6.6.4 Addressing the Supply Deficiencies
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
Draft St. Elizabeth WS PPLan – October 12 2011
6.6.5 Cost for Improvements
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
Draft St. Elizabeth WS PPLan – October 12 2011
6.6.6 Economic Assessment
6.7 Union/Balaclava Demand Zone (SE-4)
6.7.1 System Description
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
6.7.3 Water Requirement
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.
Year Supply Population
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.
6.7.4 Addressing the Supply Deficiencies
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
Draft St. Elizabeth WS PPLan – October 12 2011
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.
6.7.5 Cost for Improvements
The estimated total cost for the improvement works is $639.5M as shown below.
Activity Qnty Cost ($)
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
Engineering and other costs 106,598,464.48
TOTAL 639,590,786.88
33
Draft St. Elizabeth WS PPLan – October 12 2011
6.7.6 Economic Assessment
NET BENEFIT OF THE PROJECT -
NPV OF PROJECT @ 10% (217,876,723)
IRR OF PROJECT -5.4%
34
Draft St. Elizabeth WS PPLan – October 12 2011
6.8 Black River Demand Zone (SE-5)
6.8.1 System Description
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.
6.8.3 Water Requirement
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.
Year Supply Population
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.
6.8.4 Addressing the Supply Deficiencies
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
Draft St. Elizabeth WS PPLan – October 12 2011
Additional water is available from the YS Spring and is available to augment the water
supply system.
36
Draft St. Elizabeth WS PPLan – October 12 2011
37
Draft St. Elizabeth WS PPLan – October 12 2011
6.8.5 Cost for Improvements
The estimated total cost for the improvement works is $1,172M as shown below.
Activity Qnty Cost ($)
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
6.8.6 Economic Assessment
NET BENEFIT OF THE PROJECT -
NPV OF PROJECT @ 10% (217,876,723)
IRR OF PROJECT -5.4%
38
Draft St. Elizabeth WS PPLan – October 12 2011
6.9 Burnt Savannah Water Demand Zone
6.9.1 System Description
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
6.9.3 Water Requirement
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.
Year Supply Population
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)
6.9.4 Addressing the Supply Deficiencies
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.
Year Supply Population
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
Draft St. Elizabeth WS PPLan – October 12 2011
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.
6.9.5 Cost for Improvements
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
Draft St. Elizabeth WS PPLan – October 12 2011
6.9.6 Economic Assessment
NET BENEFIT OF THE PROJECT -
NPV OF PROJECT @ 10% 59,093,096
IRR OF PROJECT 22.0%
6.10 Bogue-Elim Water Demand Zone
6.10.1 System Description
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
6.10.3 Water Requirement
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.
Year Supply Population
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
Draft St. Elizabeth WS PPLan – October 12 2011
6.10.4 Addressing the Supply Deficiencies
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.
Year Supply Population
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
Draft St. Elizabeth WS PPLan – October 12 2011
6.10.5 Cost for Improvements
The estimated total cost for the improvement works is $179.5 M as shown below.
Activity Qnty Cost ($)
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
Engineering Costs 46,886,458.80
Total 281,318,752.80
6.10.6 Economic Assessment
NET BENEFIT OF THE PROJECT J$ -
NPV OF PROJECT @ 10% J$ (79,206,556)
IRR OF PROJECT -4.1%
43
Draft St. Elizabeth WS PPLan – October 12 2011
Santa Cruz/South Hampton Demand Zone
6.10.7 System Description
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
6.10.9 Water Requirement
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.
Year Supply Population
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)
6.10.10 Addressing the Supply Deficiencies
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
Draft St. Elizabeth WS PPLan – October 12 2011
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
Draft St. Elizabeth WS PPLan – October 12 2011
6.10.11 Cost for Improvements
The estimated total cost for the improvement works is $599.5 M as shown below.
Activity Qnty Cost ($)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
NET BENEFIT OF THE PROJECT -
NPV OF PROJECT @ 10% 63,589,589
IRR OF PROJECT 12.9%
46
Draft St. Elizabeth WS PPLan – October 12 2011
Pepper/Goshen Demand Zone
6.11.1 System Description
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
6.11.3 Water Requirement
The current population in the Pepper/Goshen 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.
Year Supply Population
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
6.11.4 Addressing the Supply Deficiencies
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
Draft St. Elizabeth WS PPLan – October 12 2011
6.11.5 Cost for Improvements
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
Engineering and Other Costs 64,829,000
TOTAL 388,974,000
6.11.6 Economic Assessment
NET BENEFIT OF THE PROJECT -
NPV OF PROJECT @ 10% (198,798,281)
IRR OF PROJECT -7.5%
48
Draft St. Elizabeth WS PPLan – October 12 2011
6.12 Parottee/Hopewell Demand Zone
6.12.1 System Description
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
6.12.3 Water Requirement
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.
Year Supply Population
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
6.12.4 Addressing the Supply Deficiencies
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
Draft St. Elizabeth WS PPLan – October 12 2011
6.12.5 Cost for Improvements
The estimated total cost for the improvement works is $ 406.1 M as shown below.
Activity Qnty Cost ($)
Upgrade 3.3 Km distribution line: Barbury Hall to Cherry
Gardens to 4” PVC
Sum 45,017,280.00
Upgrade 4.3 Km distribution line: Stonefield to Barbury Hall
to 4” PVC
11,000 58,658,880.00
Upgrade 3.5 Km distribution line: Brownberry Lane to
Brucefield to 4” PVC
sum 47,745,600.00
Upgrade 5.3 Km transmission line to 8” from Hopewell well
to Parottee and from Hopewell well to Williamsfield
2,000 117,656,120.40
Install 8.5 Km 6” distribution line from Hopewell to Fort
Charles
149,207,436.00
Construct 200,000 gallon tank 50,000,000.00
Sub-Total 468,285,316.40
Engineering Costs 93,657,063.28
Total 561,942,379.68
6.12.6 Economic Assessment
NET BENEFIT OF THE PROJECT J$ -
NPV OF PROJECT @ 10% J$ (178,180,650)
IRR OF PROJECT -3.7%
50
Draft St. Elizabeth WS PPLan – October 12 2011
6.13 Malvern/Munro Demand Zone
6.13.1 System Description
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
6.13.3 Water Requirement
The current population in the Malvern/Munro 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.
Year Supply Population
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
Draft St. Elizabeth WS PPLan – October 12 2011
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
6.13.4 Addressing the Supply Deficiencies
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
Draft St. Elizabeth WS PPLan – October 12 2011
6.13.5 Cost for Improvements
The estimated total cost for the improvement works is $595.8 M as shown below.
Activity Qnty Cost ($)
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
Engineering and other costs 139,406,078.40
Total 836,436,470.40
53
Draft St. Elizabeth WS PPLan – October 12 2011
6.13.6 Economic Assessment
NET BENEFIT OF THE PROJECT -
NPV OF PROJECT @ 10% 59,814,114
IRR OF PROJECT 12.8%
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Draft St. Elizabeth WS PPLan – October 12 2011
6.14 Pedro Plains Demand Zone
6.14.1 System Description
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
6.14.3 Water Requirement
The current population in the Pedro Plains 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.
Year Supply Population
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
6.14.4 Addressing the Supply Deficiencies
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.
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Draft St. Elizabeth WS PPLan – October 12 2011
It is planned to fully integrate the Hounslow Well into supply system by strengthening the transmission mains from this well.
6.14.5 Cost for Improvements
The estimated total cost for the improvement works is $331.7 M as shown below.
Activity Qnty Cost ($)
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
Engineering Costs 105,676,868.80
Total 634,061,212.80
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Draft St. Elizabeth WS PPLan – October 12 2011
6.14.6 Economic Assessment
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Draft St. Elizabeth WS PPLan – October 12 2011
6.15 New Forest Demand Zone
6.15.1 System Description
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
6.15.3 Water Requirement
The current population in the New Forest 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 is maintained.
Year Supply Population
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.
6.15.4 Addressing the Supply Deficiencies
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.
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Draft St. Elizabeth WS PPLan – October 12 2011
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.
Year Supply Population
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
6.15.5 Cost for Improvements
The estimated total cost for the improvement works is $127.3 M as shown below.
Activity Qnty Cost ($)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
Sub-total 97,602,500
Engineering and Other Costs 19,520,500
TOTAL 117,123,000
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Draft St. Elizabeth WS PPLan – October 12 2011
6.15.6 Economic Assessment
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Draft St. Elizabeth WS PPLan – October 12 2011
6.16 New Market Demand Zone
6.16.1 System Description
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.
6.16.3 Water Requirement
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%).
6.16.4 Addressing the Supply Deficiencies
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.
6.16.5 Cost for Improvements
The estimated total cost for the improvement works is $299 M as shown below.
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Draft St. Elizabeth WS PPLan – October 12 2011
New Market
Activity Qnty Cost ($)
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
Engineering and Other Costs 49,841,000
TOTAL 299,046,000
6.16.6 Economic Assessment
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Draft St. Elizabeth WS PPLan – October 12 2011
6.17 Ginger Hill Demand Zone
6.17.1 System Description
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.
6.17.3 Water Requirement
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%).
6.17.4 Addressing the Supply Deficiencies
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.
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Draft St. Elizabeth WS PPLan – October 12 2011
6.17.5 Cost for Improvements
The estimated total cost for the improvement works is $119.1 M as shown below.
Ginger Hill
Activity Qnty Cost ($)
Install 150mm PVC main 7,000 70,035,000
Provision for constructing distribution network 3,000 29,235,000
Sub-total 99,270,000
Engineering and Other Costs 19,854,000
TOTAL 119,124,000
6.17.6 Economic Assessment
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Draft St. Elizabeth WS PPLan – October 12 2011
6.18 Essex Valley Demand Zone
6.18.1 System Description
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,
6.18.3 Water Requirement
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%).
6.18.4 Addressing the Supply Deficiencies
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.
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