Operation of Well 16 Temporary Granular Activated Carbon (GAC) Treatment System


SCH Number
Lead Agency
State Water Resources Control Board
Document Title
Operation of Well 16 Temporary Granular Activated Carbon (GAC) Treatment System
Document Type
NOE - Notice of Exemption

Document Description
The State Water resources Control Board (State Water Board), as the responsible agency, will be issuing a water supply permit. The City of Chino proposed project is for one treatment system that includes four skid-mounted pre-filters and two Granular Activated Carbon (GAC) Treatment Vessels and piping to an existing treatment facility. The pre-filter unit is 10 ft x 15 ft and installed above ground with no permanent foundation. Vessels will be installed on a 17 ft x 38 ft concrete pad. New 8 inch distribution piping will be installed for GAC treatment system influent (raw-untreated), effluent (treated), and backwash supply 9approx. 230 ft totals). The GAC Treatment System will utilize GAC material that will need to be removed from the vessels every 1-3 years (varied based on water quality) and transported (non-hazardous) to an off-site locations to be reactivated for reuse. The Project proposes a shallow excavation to install concrete pad for the GAC Treatment Systems. No permanent grading is proposed outside project and any areas disturbed during construction will be restored to its original condition. Total disturbed area is estimated to be approximately <1,000 square feet.

Contact Information
Eric Zuniga
State Water Resources Control Board
San Bernardino District Office 464 West 4th Street, Suite 437
San Bernardino, CA 94201

(909) 383-4328


Chino Ontario
San Bernardino
Cross Streets
Bon View Avenue, Scharfer Avenue, Benson Avenue, Francis Avenue

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1 - S: 15301, S: 60101
Reasons for Exemption
The project consists of exterior alterations of water treatment units (14 CCR 15301 and 22 CCR 60101(a)(1)) with no expansion of an existing use. The State Water Board is a responsible agency for this project and is not responsible for the California Department of Fish and Wildlife filing fees.
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