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Mallika Ramanathan, PE

alternative will improve energy efficiency of secondary treatment, provide process optimization, and flexibility
for the City to meet potential future nutrient discharge regulations.

Pinole Water Pollution Control Facility Upgrade. Mallika served as the project engineer for preparation of
the preliminary and final design of upgrades at the WPCF necessary to comply with the new National Pollutant
Discharge Elimination System permit. Predesign and detailed design efforts included: flow and load analysis,
process modeling for secondary system upgrades, construction phasing options, influent pumping, new
headworks facility screening, and grit removal; aeration basin modifications to include nitrification, new
aeration blowers, new secondary clarifiers, and new return activated sludge (RAS)/waste activated sludge
(WAS) pumping station; new disinfection facilities.
Russian River County Sanitation District Treatment Plant Biological Nutrient Removal (BNR)
Facilities, Sonoma County Water Agency. Mallika prepared the predesign and final design and provided
bid period, construction and startup support for BNR upgrades. The upgrades provided nitrogen and biological
phosphorous removal to meet new NPDES discharge limitations.

Conceptual and Detailed Design for Various California Wastewater Treatment Projects. Mallika led
flows and load analysis, process engineering support and detailed design for a variety of California and Bay
Area projects. Examples include preparing the basis of design flow and load analysis for the City of San Mateo,
nitrifier growth rate testing at CCCSD, a new digester at Union Sanitary District, solids handling capacity and
digester preliminary design for EBMUD, new solids thickening facilities at CMSA, struvite mitigation at Encina
Water Pollution Control Plant, a facilities plan for the City of San Luis Obispo, design of new switchgear and
standby power systems for Yuba City and USD, master plans for Truckee Meadows Water Reclamation Facility
and Douglas County Sewer Improvements District No. 1.

Recycled Water Master Planning
Recycled Water Master Planning for East Bay Municipal Utility District. Mallika most recently worked
on a recycled water master plan update to address the District’s desire to increase recycled water deliveries.
The update considered potable and non-potable reuse. Mallika also recently completed an assessments of the
District’s East Bayshore Recycled Water facility to identify improvements that could be made to increase
recycled water deliveries and improve customer acceptance of recycled water.
Industrial Water Reuse Study, City of Benicia. Mallika developed a feasibility study and environmental
permit (initial study) for the City of Benicia to deliver 2,200 acre-feet per year of recycled water to the nearby
petroleum refinery for use as cooling tower makeup water. The feasibility study included developing preliminary
water quality specifications, evaluating pipeline alignments and delivery alternatives, as well as evaluating and
identifying treatment upgrades needed at the City’s WWTP. The feasibility study was prepared to meet
Proposition 1 grant requirements and the directives and standards of the USBR's Title XVI Recycled Water
Program. The project details were coordinated with the City and the refinery to reach consensus with the
project stakeholders.
Recycled Water Feasibility Studies. Mallika has led a number of recycled water studies across the state
that consider recycled water supply and demand, recycled water management, treatment upgrades,
conveyance, project costs and feasibility. The list of projects includes the identification of improvements to
improve recycled water quality for the Los Angeles Department of Water and Power, preparing recycled water
facilities evaluation and feasibility studies for the San Francisco Public Utilities Commission, Alameda County
Water District, CCCSD, Town of Windsor, and EBMUD.
Industrial Reuse and Zero Discharge Evaluations. Malika has been involved with industrial reuse studies
that consider producing recycled water from a municipal wastewater treatment facility and/or consider reuse
of industrial wastewater. Examples of projects include leading the pilot testing for EBMUD’s RARE project to
deliver municipal wastewater for boiler feed water at a local refinery; the pilot testing supported the preliminary
design for the project and also supported permitting efforts. Other experience includes reuse of industrial
wastewater at an automotive, chromium plating facility in Ohio, and a zero-discharge evaluation at an
aluminum smelting and casting facility in Maryland and a dairy production facility in Idaho.

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