"Emergency Recycled Water Storage Pond Project" ENV 17-0002

"Emergency Recycled Water Storage Pond Project" ENV 17-0002

The City of Escondido·proposes the construction of an emergency recycled water storage pond, which would provide ten (10) million gallons of additional emergency storage in the City's recycled water system. The emergency storage would be utilized to reduce flows from the City's Hale Avenue Resource Recovery Facility (HARRF) to an existing land outfall during wet weather storm events. The proposed storage pond would tie into a new pipeline that is part of the City's Eastern Recycled Water System Project (which is a separate but associated project under the City's larger recycled water project), that is anticipated to be near completion when construction of the proposed project begins. The proposed fill pipe would include a manual valve, which would be opened by a City employee during heavy storm events when the additional storage is needed, and manually closed once the pond is full. The pond would drain through an eight- (8) inch pond drain line on the southwestern side of the pond to irrigate the property owner's avocado grove further west of the proposed pond. Construction of the pond would utilize an earthen dam that would be stabilized using soil cement. The 5.9-acre, five- (5) sided pond would have a varying width between approximately 225 and 308 feet, with a 21.8-foot height to the water surface and 14.4 inches of freeboard. Construction would also involve the installation of a twelve- (12) foot wide permanent driving surface at the top of the slopes around the pond, and the installation of a temporary construction-easement. The total project disturbance area, including the pond site, access road, and temporary construction easement, is estimated to be approximately 7.2 acres.

Unincorporated