Home Return to Topic Board Activities Conservation Contact Info Customer Service Employment Engineering Finance Department For Kids Master Plan Information on Lead Office Hours Operations Projects Water Quality Utility Memberships Creating Municipalities

 

Water System Master Plan

(2006)

 

  •   Past, Present and Estimate of Future Water Requirements

      1.             Average daily demands and associated peak factors in the system have remained constant over the past seven years.

      2.              Water consumption has remained constant across customer classifications.

      3.              Large water users account for approximately 1.3% of meters and approximately 35% of the total water consumed.

      4.              Population increases have varied dramatically from decade to decade.  However, household growth has been an almost continuous 1.3% per year.  There has been a decrease in the number of persons per household.

      5.              Population growth since the last Master Plan was far lower than projected.

      6.              Future demand based on population growth is easier to account for than changes in industrial/commercial demand.

      7.              System source capacity is more than adequate for future demand conditions.  However, water diversion allocations are limited and will not be increased.

      8.              Adequacy of supply provides safety and redundancy.  Higher demands must be met with water purchased from outside sources.

  •   Water Quality and Treatment

      1.              All of the Authority’s sources of supply are in compliance with all current and projected primary water quality regulations.  The secondary water quality standard for hardness is exceeded in several wells and sodium levels exceed the recommended maximum at Morris Plains Well and Littleton Well.

      2.              Certain groundwater sources are susceptible to VOC and MTBE contamination.  Two sources are now treated for VOC removal and two additional sources contain low level VOC and MTBE contamination.

      3.              The capital program should anticipate providing VOC and possibly MTBE removal at Wing Well.

      4.              New and pending regulations do not portend significant additional capital investment for compliance.

      5.             The Capital Program should anticipate replacement of membranes at the Clyde Potts Treatment Plant every seven (7) to ten (10) years and replacement of Greensand filter media at Black Brook Wells and McCabe Well every ten (10) years.

      6.              All well water sources will require continuous chlorine residual monitoring.

      7.              Laboratory certifications for compliance monitoring to be obtained for heterotrophic plate count and orthophosphate.  Certifications for control monitoring to be obtained for alkalinity, hardness, turbidity and color.

  •   Pumping, Transmission and Distribution

  1.              The ability to transfer water among service zones is complete except for a recommended interconnection between the 670 and 568 gradients.

  2.              For the planning period, upgrades are recommended for Countrywood Booster Station, Mountain Way Booster Station and Jockey Hollow Booster Station.  All of the other pumping and water transfer facilities are modernized and in good condition.

  3.             Only one change is recommended for the transmission system.  Complete the connection between the 16-inch Black Brook transmission main in South Street and the proposed 12-inch main in Madison Avenue.

  4.              There are very few dead end loops and undersized mains that need to be corrected.  Those that remain can be addressed in future Capital projects.

  5.             The primary conclusion of this section is that the distribution system is aging and future Capital Improvements should focus on water main replacements based upon age and service conditions.

  6.              The areas of the distribution system that will need the most attention are those that were installed after World War II and prior to the widespread use of ductile iron pipe for water main installation. 

  7.              The oldest pipe in the system should be scheduled for replacement as well except for the large diameter mains.  These tend to be of high quality material and still provide good service.  Future projects may consider rehabilitation of these mains rather than replacement.

  8.             The majority of the service area has adequate or excellent fire flow protection, there are only a few areas of the system with less than adequate fire flows, these can not be practicably improved with Capital projects.

  9.              Drain and fill cycles for Easley Tank are less than ideal under maximum demand conditions.  This should be monitored and managed by system operators.

10.             There are no clear benefits to the Authority to change any of the interconnections with neighboring utilities at this time.

  •   Water Accountability

1.                 Excessive unaccounted-for water in the system was brought under control in the mid ‘90s.  Since then the percent unaccounted-for had steadily increased and has recently begun to decrease to below 22%.

2.                 Additional efforts are warranted to effect a reduction in unaccounted-for water.  Specifically, this includes expanded leak detection efforts using additional correlation equipment.

3.                 Outside contractors should be employed to assist this effort if further reductions in unaccounted for water are not realized in 2006.

4.                 The plan outlined in Chapter 4 for long term replacement of distribution system infrastructure should be prioritized in the near term for leakage reduction.

5.                 Additional testing of water meters throughout the water system should be undertaken immediately in conjunction with the AMR program to determine the accuracy of the consumption data.

  •   Metering and Meter Reading

1.                 The Automatic Meter Reading System currently in use by the Authority is almost 17 years old and operating satisfactorily.

2.                  The cost to maintain the AMR System and keep the high number of customers on the system is rapidly increasing.

3.                  System components are nearing obsolescence and future availability is uncertain.

4.                 The majority of water meters are also aver 17 years old and show some inaccuracy but no sign of excessive wear or increasing failure.  However, additional testing of meters is warranted.

5.                  As long as the current AMR system is operational, a compatible radio system would be installed in phases or as existing MIUs fail.  A full water meter change out at this time is not warranted.

  •  Summary of Recommendations
Phase 1 Projects
(1-3 Years)
Project Description  Estimated Project Cost 
1.      Replace Filter Media at Black Brook Manganese Removal Plant  $                   500,000
2.      Lake Valley Road Water Main and Interconnection to 568 Gradient  $                   350,000
3.      Countrywood Booster and Todd Tower Improvements  $                   575,000
4.      Mountain Way Booster Generator and Electrical Improvements  $                   200,000
5.      Jockey Hollow Booster Electrical Improvements  $                   100,000
6.      Automatic Meter Reading (AMR) MIUs  $                   900,000
7.      Transmission and Distribution System Improvements  $                4,150,000
Subtotal
 $                7,075,000
   
   
Phase 2 Projects
(4-6 Years)
Project Description  Estimated Project Cost 
1.      Filter Media Replacement at McCabe Well  $                   500,000
2.      Replace Automatic Meter Reading System and MIUs  $                2,100,000
3.      Standby Generator at Wing or Black Brook  $                   650,000
4.      Distribution System Improvements  $                4,500,000
Subtotal
 $                7,750,000
   
   
Phase 3 Projects
(7-10 Years)
Project Description

 Estimated Project Cost 

1.      Filter Media Replacement at Clyde Potts Treatment Plant  $                   600,000
2.      New AMR MIUs and Meter Changes  $                1,000,000
3.      Standby Generator  $                   650,000
4.      Wing Well Treatment Facility  $                2,500,000
5.      Distribution System Improvements (identified)  $                1,300,000

6.      Distribution System Improvements (not yet identified) –

$1,500,000 per year

 $                4,500,000
Subtotal
 $              10,550,000
   
   
TOTAL  $              25,375,000

 

Home Return to Topic Board Activities Conservation Contact Info Customer Service Employment Engineering Finance Department For Kids Master Plan Information on Lead Office Hours Operations Projects Water Quality Utility Memberships Creating Municipalities