News

Evaluation of suitable pipeline rehabilitation improvement methods and Design Solution

The City of South Gate (City) is in Los Angeles County, approximately seven miles south of the downtown area of the City of Los Angeles. With growing concerns about Sanitary Sewer Overflows (SSO) and in compliance with the Sanitary Sewer Systems and Monitoring and Reporting Program, the City recently updated an internal program audit report that completed a Sewer System Management Plan (SSMP).

Projects Elements include Grit Dewatering Building Equipment Replacement; Reactor Drain, Gallery Drain, and Washdown Water (3W) Improvements; and Wet Weather Storage Basin Rehabilitation

LEE + RO is providing the Santa Clarita Valley Water Agency (Agency) with engineering services for an evaluation of replacement options, and preparation of the preliminary and final design for the replacement of an underground storage tank at its Rio Vista Water Treatment Plant (RVWTP). The existing 8,000-gallon Underground Storage Tank (UST) provides diesel fuel for the RVWTP Emergency Standby Generator. The replacement tank will be of similar size but will be an Aboveground Storage Tank (AST).

Goleta Water District (GWD) has seven different facilities equipped with stationary diesel-fueled emergency power generators ranging in size from 16 kW up to 750 kW. GWD issued a task order to LEE + RO to evaluate and perform a condition assessment on these generators and provide prioritized recommendations for repairs or replacement to avert potential future failures.

Goleta Water District’s (GWD) Hollister Booster Pump Station (BPS) is an underground facility that is part of the GWD’s recycled water system. An Arc Flash Study had recommended that the main switchboard/MCC and VFD/PLC be replaced in their entirety.

The Pierce Street Pump Station is the largest wastewater lift station in the City of Riverside. It handles on average 4.5 MGD and is currently experiencing operational challenges. Issues include non-operational valves, leakage from the wet well into the dry well, aging mechanical equipment, and outdated electrical components.

Evaluating Motor Control Centers and Pump Control Panels for 123 Facilities

LEE + RO is providing Elsinore Valley Municipal Water District (EVMWD) with engineering services for inspection, evaluation, and condition assessment of the Motor Control Centers (MCC) and Pump Control Panels at 123 EVMWD facilities.

Irvine Ranch Water District’s (IRWD) Turtle Rock Zone 3 Reservoir (TR Z3 Res) is located in Irvine and supplies water to the surrounding Turtle Rock neighborhood and to the Zone 3 to 4 Pump Station (TR Z4 PS), which serves the uppermost portion of the neighborhood.

The City of Brawley (City) owns and operates a wastewater treatment plant with a 5.9 million gallons per day permitted capacity. The influent wastewater is treated by extended aeration basins (i.e., Biolac system) and secondary clarifiers. The secondary effluent is then disinfected by a Trojan UV4000 system and then discharged to the New River.