Waste Discharge Requirements Order No. 5-01-107, NPDES No. CA0004863, Mirant Delta LLC, Contra Costa Power Plant, Contra Costa County

Summary

SCH Number
2001068085
Public Agency
Regional Water Quality Control Board, Region 5 (Central Valley), Sacramento
Document Title
Waste Discharge Requirements Order No. 5-01-107, NPDES No. CA0004863, Mirant Delta LLC, Contra Costa Power Plant, Contra Costa County
Document Type
NOE - Notice of Exemption
Received
Posted
6/7/2001

Document Description
The Contra Costa Power Plant (CCPP) uses water from the San Joaquin River to cool electrical generating units. Cooling water is drawn from and discharged back to the San Joaquin River. The owner and operator of the CCPP, Mirant Delta LLC, has proposed construction of a 530 net megawatt combined cycle power generation unit, Unit 8. Unit 8 would be located within the existing CCPP site complex and will rely on the existing CCPP systems including plant process make-up water, wastewater treatment systems, cooling water supply, fire water supply, and other ancillary systems. As proposed, Unit 8 will require no new water intake or discharge structures. Cooling water from the operation of the existing Units 6 and 7 would be used for Unit 8, with no increase in temperature of the discharge as a result of the proposed project. The discharge of water to the San Joaquin River, a water of the United States, is conducted pursuant to a National Pollutant Discharge Elimination System (NPDES permit) issued by the Central Valley Regional Water Quality Control Board (Regional Board). The Regional Board adopted a renewed NPDES permit for the CCPP, including Unit 8, on April 27, 2001.

Contact Information
Jon Ericson
Regional Water Quality Control Board, Region 5 (Central Valley),
Lead/Public Agency
3443 Routier Road, Suite A
Sacramento, CA 95827

Phone : (916) 255-3060

Location

Cities
Antioch
Counties
Contra Costa
Other Location Info
Location: Southern bank of the San Joaquin River, approximately 0.75 mile east of the City of the City of Antioch, and approximately 1,500 feet downstream (west) of the Antioch Bridge (SR 160), in Contra Costa County.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Section 15301
Reasons for Exemption
The issuance of an NPDES permit is a discretionary action that is exempt from the requirement to prepare an environmental document. The NPDES permitting process furthers, and is consistent with, the remaining sections of CEQA that may apply. The CCPP and Pittsburg Power Plant are existing facilities.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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