and allows the groundwater wells to be turned off for periods at a time, reducing the rate of pumping of the local aquifers.
Suburban-Rosemont Service Area The Suburban-Rosemont System was originally permitted and operated as two water systems adjacent to each other. Along with the design and construction of the Folsom Pump Station, CAW worked to combine these two systems into one larger system. The Rosemont system had been using fluoride for some time. In order to combine the two systems, the Suburban system needed to be fluoridated. CAW received grant funding from the First 5 Sacramento Commission in order to add fluoridation equipment to the system. This had the added benefit that the City of Sacramento used fluoride and, to utilize their surface water resources, it was necessary to have a system that was fluoridated. Once both systems were fluoridated, they had to be combined into one by the California Department of Public Health (CDPH). The regulatory process required significant data manipulation and coordination between agencies.
This project resulted from a regional effort to bring surface water from the City of Sacramento to CAW.
One example of this was the modification of the two systems’ monitoring and sampling plans. Once the regulatory process was completed and the infrastructure was in place, the operation of the system had to be modified to accommodate the new pump station. This involved water system modeling as well as field operational changes.
Conjunctive Use
The Folsom Pump Station is a state-of-the-art facility from the ground up.
46
APWA Reporter
February 2014
The Folsom Pumping Station that was built in the Suburban-Rosemont Water System area will allow the conjunctive use of both surface water and groundwater in the system. Before the pump station was built, the area was primarily reliant on local groundwater to provide for a population of about 56,000. Implementation of conjunctive use in this system has been a long-term goal of CAW and is part of a regional effort that seeks to utilize our natural resources in a sustainable manner. As a conjunctive use system, environmental and water quality benefits are increased, allowing
for better use of the surface water during months of significant rainfall. This project resulted from a regional effort to bring surface water from the City of Sacramento to CAW. The water will be used to support conjunctive use in the area, allowing the groundwater aquifer to rest and recover from pumping. It will also offset water supplies lost to groundwater contamination. The new source of supply will increase the efficiency and reliability of the water system. The project required significant coordination between the City of Sacramento and CAW. The project was dependent on developing a water purchase agreement between the two parties. Both agencies worked diligently to accomplish development of the agreement. Construction activities also required close coordination. Schedules, costs and construction activities were all closely monitored in an effort to bring a 24-inch pipeline from the City of