ZV-705

ZV-705

Covina Irrigating Company (ClCo) is a nonprofit, mutual water company that provides water to municipal, public, and private water purveyors in the eastern San Gabriel Valley. ClCo's BPPP is an approximately 2.52-acre property at 15342 East Ramona Boulevard in Baldwin Park, California. For security, ClCo maintains a 6 foot-high chain link fence, topped with barbed wire, around the entire perimeter of the Baldwin Park Pumping Plant (BPPP). The northern fence configuration is such that the entrance gate is set back into the property so that vehicles entering the site do not obstruct traffic on East Ramona Boulevard. In addition to ClCo's perimeter fence, certain of the adjoining developments feature concrete block walls or wooden fences of their own, which provide additional site security. The property features a large covered reservoir, four free-standing buildings, an electrical substation featuring a pad-mounted electrical transformer, and three pole-mounted electrical transformers. The reservoir is approximately half above grade and half below grade. Property does not feature any office space and is not normally manned. ClCo personnel generally visit the site once per day for monitoring and routine maintenance purposes. Proposed Single-Use Ion Exchange System and Related To remove perchlorate from the water pumped from Wells 2 and 3, and in anticipation of increased perchlorate concentrations in Well 1, ClCo proposes to install a perchlorate treatment system at the BPPP. More specifically, ClCo proposes to install a single-use or "disposable" ion exchange (IX) resin treatment system. IX treatment was selected based on its effectiveness and its acceptance by the relevant regulatory agencies, notably the CDPH. Replace the existing pad-mounted and pole-mounted electrical transformers with a single new electrical transformer and consolidate the two existing electrical services into a single service with a single meter. Replace three existing horizontal split-case booster pumps currently in the existing Well 1 Pump House with four new vertical turbine pumps. Replace the existing electrical control panel in the existing Well 1 Pump House with a new panel that integrates the controls for all three production wells, the four new booster pumps, a new pump-to-waste treatment system, and the IX treatment system. The existing Well 1 Pump House building will be demolished and replaced by a new pump house. Add CDPH-mandated sanitary seals to Wells 1 and 2. Install an IX treatment system, with a maximum flow-through capacity of 6,600 gallons per minute (gpm), capable of treating water from all three wells at the BPPP. Add CDPH mandated "pump-to-waste" capability to each of Wells 1, 2, and 3. Replace and/or modify the existing conveyance piping such that production water from the three wells is routed through the IX treatment system before entering the reservoir and pump-to-waste water is routed through the pump-to-waste IX treatment system before being discharged to the existing onsite storm drain inlet structure. Upgrade, repair, or replace certain of the existing equipment, such as well pump shafts and bowls, well pump motors, and the like. Upgrade, reconfigure, repair, or replace existing infrastructure as necessary based on conditions observed during construction of the perchlorate treatment system. Install a new radio communications antenna to replace the existing antenna mounted on the roof of the Well 1 pump house. Construct a concrete block wall along the south, east, and west boundaries of the BPPP and replace the existing chain link fence along the northern boundary with an ornamental, wrought iron or similar fence with an electrically operated gate. Install landscaping and hardscaping to improve the appearance and functionality of the BPPP.

Baldwin Park

Los Angeles