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Mon, Oct. 21

Prescott Valley's water portfolio includes six well fields

PRESCOTT VALLEY – The Town of Prescott Valley is expanding its water supply by developing a northern section of six well fields, in addition to its minority role in the JWK Ranch purchase.

Larry Tarkowski, the town's interim town manager, said the town is nearing completion of its north well field project. The project, west of the Viewpoint subdivision, features six wells capable of producing as many as 630 gallons of water a minute.

"We are going to equip them at about 600 gallons a minute, even though we have found three of our sites have the ability to produce between 2,000 and 3,000 gallons per minute," he said. "We have wildly exceeded any of our expectations with water resources."

The north well field will allow the town to rotate pumping from its wells, Tarkowski said. That will allow the town to rest its primary well field near Glassford Hill. He said about 50 percent of the town's water production capability comes from the wells north of Bradshaw Mountain High School on the east side of Glassford Hill.

"Our primary experience has been when we rest that area, then we end up getting extremely good recovery," he said. The town currently has a total of 17 wells, some of which are not located on well fields.

For example, one of the town's wells is on the south side of Lakeshore Drive, across from the town's Civic Center.

The town has two separate water companies – the Prescott Valley Water District and the Prescott Valley Municipal System. The municipal system hydrates homes north of Highway 89A, while the water district pumps water into homes south of the highway.

Tarkowski said the town has agreements that allow it to transfer water from the district to the sys-tem.

Neil Wadsworth, the town's utility operations manager, said the town always keeps 5 million to 8 million gallons of water in storage.

"Our wells are operating during the day time, and we are pumping water into the system to the homes as well as augmenting the storage," he said. "When the demand is greater than the wells can put out, it draws from storage. Then at night, when the demand goes down, we are pumping the storage back up again."

Wadsworth said Prescott Valley residents used 4,712 acre-feet last year. The town has 8,100 acre-feet of water in its water portfolio, including certificates of assured water supply and the service area rights, not including recharge credits.

The town receives credit for 90 percent of the water it recharges, Wadsworth said. The town recharges about 85 percent of its wastewater, he added.

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