HomeMy WebLinkAboutCentral Valley Regional Water Quality Control Brd - Drinking Water SupplyCENTRAL VALLEY REGIONAL WATER QUALITY CONTROL BOARD
ISSUE PAPER
Drinking Water Supply and Public Health Related Issues
Proposed NPDES Permit Renewal
for
Sacramento Regional County Sanitation District
Sacramento Regional Wastewater Treatment Plant
14 December 2009
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Central Valley Regional Water Quality Control Board (Central Valley Water
Board) staff is developing the National Pollutant Discharge Elimination System
(NPDES) permit renewal for the Sacramento Regional County Sanitation
District's (SRCSD) Regional Wastewater Treatment Plant discharge to the
Sacramento River. The proposed permit renewal is scheduled to be considered
by the Central Valley. Water Board for adoption in 2010. The existing NPDES
permit (Waste Discharge Requirements Order No. 5-00-188) regulates the
discharge of up to 181 million gallons per day (mgd) of secondary treated
municipal wastewater to the Sacramento River, within the Sacramento -San
Joaquin Delta (Delta). For the proposed permit renewal, the SRCSD is
requesting an increase of its permitted average dry weather discharge flow from
181 mgd to 218 mgd for this regional facility to accommodate future growth in the
greater Sacramento area.
There are many significant interrelated issues that must be addressed in the
renewed NPDES permit. The major issues are within two main topics:
(1) drinking water supply and public health and (2) aquatic toxicity. Through the
attached Issue Paper, Central Valley Water Board staff has identified human
health-related issues and is seeking public comments and additional information
regarding the NPDES permitting requirements necessary to protect the municipal
and domestic supply (MUN) beneficial use of the Delta (e.g., drinking water
supply issues). Issues regarding public health protection due to public contact
with treated wastewater are also discussed in this issue paper (e.g., disinfection
issues). Through this effort, Central Valley Water Board staff is soliciting input
from stakeholders to assist in identifying deficiencies -in -protection of the
beneficial uses of the Sacramento River (and the Delta), and potential conflicts
with other agency's programs, as it pertains to the subject discharge.
The issue paper can accessed at the Central Valley Regional Water Quality
Control website under Sacramento County Tentative Orders —
http://www.waterboards.ca.gov/centralvalley/board decisions/tentative orders/index.shtml#specific
For questions regarding the attached issue paper, please contact Ms. Kathy
Harder at (916) 464-4778 or kharder@waterboards.ca.gov. Please submit
written comments regarding the attached issue paper by 1 February 2010
addressed to:
Ms. Kathy Harder
Central Valley Regional Water Quality Control Board
11020 Sun Center Drive, Ste 200
Rancho Cordova, CA 95670-6114