REPORT TO THE CITY COUNCIL
January 28, 2021
FROM: MICHAEL CARBAJAL, Director
Department of Public Utilities
THROUGH: RICK STAGGS, Wastewater Manager
Department of Public Utilities - Wastewater Management Division
BY: RAY ARTHUR. Project Manager - Air Resources
Department of Public Utilities - Wastewater Management Division
SUBJECT
Title
Award a requirements contract in the estimated amount of $1,218,821.80 to Kemira Water Solutions, Inc. a Delaware Corporation, for Ferric Chloride (Bulk Delivery) to the Fresno-Clovis Regional Wastewater Reclamation Facility (RWRF) Bid File 9562 (Council District 3)
Body
RECOMMENDATION
Staff recommends the City Council award a three year contract, with provisions for (two) one-year extensions, in the annual estimated amount of $1,218,821.80.
EXECUTIVE SUMMARY
The Department of Public Utilities Wastewater Management Division is seeking a requirements contract for Ferric Chloride for use at the RWRF Headworks for odor control and for hydrogen sulfide reduction in the digester gas produced during the treatment process. The hydrogen sulfide level in the digester gas and the odor control activities at the Headworks are both regulated under Environmental Protection Agency rules administered by the San Joaquin Valley Air Pollution Control District.
BACKGROUND
The RWRF currently treats approximately 60 million gallons of wastewater per day from Fresno, Clovis, and some unincorporated areas of Fresno County. The wastewater flows for six-to-ten hours in the trunk lines before reaching the plant, arriving in a septic condition in which hydrogen sulfide, a toxic malodorous gas, is present in the wastewater and is emitted into the air treatment system at the Headworks. At both the Headworks facility and the primary treatment units, there is a potential for emission of hydrogen sulfide gas from the as-yet-untreated wastewater into the atmosphere. Ferric Chloride is added at the Headworks as part of the odor control ...
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