ACTIVE PROJECTS

Updated February 3, 2017

 

The following projects are ‘active’ as of the last update of this webpage. They are budgeted, funded and authorized and may be in progress or may be scheduled in the near future.

 

  • Well No. 19

A new well site study was completed in 2014, and a suitable site was identified in 2015. An easement for the new well site was executed in September 2015. Drilling of a test well at the site began in December 2015 and was completed to a depth of 970 feet in the Spring of 2016. Pump tests indicate that the well is capable of sustained production of 100-120 gpm. Design of the well production facilities were initiated in May 2016. Due to Antimony levels in the water close to the EPA maximum contaminant level, the design incorporates a blending system that will mix and dilute Well 19 water with water from other wells before it enters the water distribution system. A construction award for the project is expected in March 2017.

  • Well 2A/2B Dual Production

This project will design and construct piping modifications, a well house addition, and other appurtenances needed to allow dual pumping and production from both EAWSD Well 2A and 2B. In 2015, EAWSD replaced its existing Well No. 2 (now 2A) with Well 2B due to declining production in the original well. The two wells are approximately 70 feet apart. Well 2B produces approximately 70 gallons per minute (gpm) of water, about the same amount that was produced by Well 2A. While it was expected that the two wells would be hydrologically connected and that pumping one well would interfere with production from the other, a simultaneous pumping test revealed that both wells could be pumped at 60 gpm each, with a total sustainable capacity of 120 gpm. Limited improvements are needed to the site to allow for simultaneous pumping that would increase production capacity from the site by 70%.

  • Pressure Zone Optimization – Phase 2

The EAWSD Pressure Zone Optimization Project will design and construct improvements to the EAWSD water system to reduce system pressures, water loss and use and to help evenly distribute storage requirements among existing tanks. Many of the existing main lines currently experience pressures above 100 psi, which increases waterline breaks, reduces the service life of waterlines and other system components, and increases the frequency of pipe and valve failure. High pressures also lead to increased water loss and customer use, since higher system pressures result in higher velocities and flows within pipes. Higher pressures can cause water pipes to expand slightly, increasing the size of cracks in the pipes and gaskets, allowing for additional water loss. Reducing pressures will increase the service life of existing system assets and reduce demand on water production wells due to reduced system water loss and customer use. Another major objective of this project is to redistribute and reduce water demand from pressure zones with limited storage capacity to pressure zones with adequate storage capacity to maintain fire and emergency storage as system demands increase. Additional growth or increase in water demand in two EAWSD pressure zones could currently compromise the District's ability to maintain adequate water storage for fire protection. The project will ensure that all areas affected will meet fire codes for fire flow and pressure with adequate storage for emergencies equal to 2 days of average daily use plus fire flow for 4 hours. This project is being phased on the basis of priorities described in the EAWSD Pressure Zone Optimization Study, June 2014. Phase 2 consists of implementing 3 or 4 of the 20 recommendations (Nos. 6, 7, 16 and 5 if funding is available).