69th and Mohawk Pump Station

69th and Mohawk Pump Station

The project proposes to replace an existing water pump station on an approximately 0.22-acre lot at 6910 Mohawk Street with a new water pump station. Removal of the existing pump station would consist of the demolition of two existing one-story buildings and an existing asphalt and gravel parking lot, removal of existing landscaping and irrigation, and removal of existing retaining walls and fences along the north, south and west property lines. An existing wall and fence along the east property line would remain. The new pump station would consist of a new 2,573 sf, 19-ft tall, one story structure, which would house an electrical room, mechanical room and six water pumps. The pump station building materials include concrete masonry unit (CMU) walls with a plaster finish, skylights, acoustical louvers, obscured glazed windows, and concrete tile roof to integrate with the surrounding neighborhood. The project would include construction of a 15.5 foot tall by 28-foot long by 18-foot wide decorative CMU block wall enclosure with a wrought iron gate and a steel tube trellis cover, to house a temporary emergency generator. A new asphalt parking area and access driveway off of Mohawk St. would be constructed, and new landscaping and irrigation would be installed as part of the new pump station. For security purposes, a combination of new 4-foot tall CMU wall with 4 foot tall perimeter wrought iron fence on top of the wall is proposed to be constructed along the site's north, west and south property lines. An approx. 8-foot diameter by 18-foot long above ground pressure surge tank would be installed as part of the project. Project would also include the installation of 2,800 linear feet of new water pipeline and replacement and upsizing of 4,660 linear feet of existing water pipelines for a total of 7,460 feet linear feet of new or replaced pipelines. Approx. 5,442 linear feet of the pipeline installation/replacement would occur on El Cajon Blvd., Mohawk St., and 67, 68th, and 69th streets near the pump station replacement site. One thousand eighteen linear feet of pipeline would be installed or replaced on College Grove Drive approx. 2.5 miles southwest of the pump station site. The open trenching method would be used to install/replace the pipelines at a depth of 4-8 feet deep with trench widths of approx. 2-4 feet. New or replacement water lines would be located within existing paved public road right of way and all trenches would be backfilled and paved to match the existing paving on the affected public roads. The water pump station replacement site is designated as RM-1-1 (Multi-family Residential) Zone.

San Diego