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Document ID us-ca-wqcpucewppccoop-2023-12-05 Title Water Quality Control Policy on the Use of Coastal and Estuarine Waters for Power Plant Cooling (Once-Through Cooling or OTC Policy) URL https://www.waterboards.ca.gov/water_issues/programs/ocean/cwa316/policy.html Jurisdiction /us/ca Subdomain(s) none Language Status completed Analyzed at 2026-05-12 05:02:07.020394+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (12)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001reportingreportingmandatoryEnergy Agencies Quarterly Reportingaquatic life, otherFinding 19 of this resolution identified that the state’s energy agencies will provide quarterly reports to the State Water Board providing the status of all associated projects anticipated to be online by August 1, 2021, which comprise half of the 3,300 MW of capacity ordered by Decision 19-11-016.high
#Q002administrativeunknownguidanceQuarterly Report Copy Request ProcedureotherTo obtain copies of these quarterly reports, please submit a request to Katherine Walsh or Jonathan Dolan using the contact information listed below.To obtain copies of these quarterly reportsmedium
#Q003administrativeoperationalmandatoryRegional Board Discretionary Permit Requirementwastewater, othera Regional Water Quality Control Board may require a facility to obtain permit coverage even if it is not otherwise required to do so if the Regional Water Quality Control Board determines that the facility’s discharge contributes to a violation of water quality standards or is a significant contributor of pollutants to waters of the United States.If discharge contributes to water quality standard violation or is a significant pollutant contributorhigh
#Q004administrativeoperationalmandatoryTransportation Facilities Regulation ScopewastewaterThe facility is regulated only if it has vehicle maintenance shops, equipment cleaning operations, or airport deicing operations, and only the portions of the facility involved in vehicle maintenance (including vehicle rehabilitation, mechanical repairs, painting, fueling, and lubrication) are regulated.Applicable to SIC codes with footnote 6high
#Q005administrativeoperationalmandatorySewage and Wastewater Treatment Works CriteriawastewaterThe facilities regulated by the Industrial General Permit are facilities used in the storage, treatment, recycling, and reclamation of municipal or domestic sewage, including land dedicated to the disposal of sewage sludge, that are located within the confines of the facility, with a design flow of one million gallons per day or more, or required to have an approved pretreatment program under 40 Code of Federal Regulations part 403.Applicable to SIC code 4952high
#Q006administrativeoperationalmandatoryRecycling Facilities Regulation ScopewastewaterOnly facilities involved in the recycling of materials, including metal scrapyards, battery reclaimers, salvage yards, and automobile junkyards are regulated by the Industrial General Permit.Applicable to SIC codes 5015 and 5093high
#Q007administrativeoperationalmandatoryLivestock and Dairy Facility Regulation ConditionwastewaterThe facility is regulated only if it has other activities on-site that are subject to the requirements of 40 Code of Federal Regulations, Chapter I, Subchapter N, Part 412, Subparts A, C, or D. Only the portions of the facility involved in those activities are regulated.Applicable to livestock and general farming SIC codes with footnote 2high
#Q008administrativereportingmandatoryHazardous Waste and Landfill Regulation Conditionwastewater, otherFacilities classified under this SIC code are regulated by the Industrial General Permit if they conduct activities described in the Industrial General Permit, Attachment A, category 4, “Hazardous Waste Treatment, Storage, or Disposal Facilities,” or category 5 “Landfills, Land Application Sites, and Open Dumps.”Applicable to SIC code 4953 (Refuse Systems)high
#Q009administrativeoperationalmandatorySteam Electric Power Generation Regulation Scopewastewater, otherOnly facilities that generate steam for electric power through the combustion of coal, oil, wood, etc. are regulated by the Industrial General Permit.Applicable to SIC code 4911 (Electric Services)high
#Q010administrativeoperationalmandatoryMining Operation ExclusionsotherFacilities not regulated by the Industrial General Permit include (1) areas of coal mining operations no longer meeting the definition of a reclamation area under 40 Code of Federal Regulations 434.11(1) because the performance bond issued to the facility by the appropriate Surface Mining Control and Reclamation Acts authority has been released; (2) areas of non-coal mining operations which have been released from applicable State or Federal reclamation requirements after December 17, 1990; (3) sites where mining claims are being maintained prior to disturbances associated with the extraction, beneficiation, or processing of mined material; and (4) sites where minimal activities are undertaken for the sole purpose of maintaining a mining claim.Applicable to SIC codes identified with footnote 5 (Mining and Oil/Gas)high
#Q011administrativeoperationalguidanceSIC Code Footnote EvaluationotherWhen evaluating whether a facility is required to obtain coverage under the Industrial General Permit on the basis of its SIC code, please consider any applicable footnote at the bottom of this webpage.During evaluation of Industrial General Permit coverage requirementshigh
#Q012administrativeoperationalguidanceAttachment A Complete Description ReferenceotherRefer to Attachment A of the Industrial General Permit for complete descriptions of the types of facilities requiring coverage.To determine complete list of facilities requiring permit coveragehigh

P Quantitative Requirements (5)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#R001designtreatmentmandatoryRegulated Projects Impervious Surface Thresholdotherrequirement>= 5000 square feetCriteria for projects classified as Regulated Projects requiring LID BMPsProjects that create and/or replace impervious surfacehigh
#R002designtreatmentmandatorySmall Project Site Design Measure Threshold (Minimum)otherrequirement>= 2500 square feetMinimum threshold for projects required to quantify runoff reductions using the Post-construction CalculatorApplicable to projects not filing an NOI under the General Construction Storm Water Permithigh
#R003designtreatmentmandatorySmall Project Site Design Measure Threshold (Maximum)otherrequirement< 5000 square feetMaximum threshold for projects using the Small Project Post-construction CalculatorProjects exceeding this limit are classified as Regulated Projectshigh
#R004designtreatmentmandatoryDetached Single Family Home Site Design Thresholdotherrequirement> 2500 square feetRequirement for detached single family homes to implement site design measuresApplies to homes creating and/or replacing impervious surfacehigh
#R005operationaloperationalmandatorySewage Treatment Works Design Flow Thresholdwastewaterrequirement>= 1000000 gallons per dayThreshold for facilities used in storage, treatment, recycling, and reclamation of municipal or domestic sewage to be regulated by the Industrial General Permit.Facility must be located within the confines of the facility and manage municipal or domestic sewage.high

D Definitions (25)

Req ID Category Name Context Confidence
#D001SWAMPSurface Water Ambient Monitoring Programhigh
#D002HABsHarmful Algal Bloomshigh
#D003CWTClean Water Teamhigh
#D004State Water BoardState Water Resources Control Boardhigh
#D005OTC PolicyOnce-Through Cooling Policyhigh
#D006CWAClean Water Acthigh
#D007NPDESNational Pollutant Discharge Elimination Systemhigh
#D008MWMegawattshigh
#D009CPUCCalifornia Public Utilities Commissionhigh
#D010DivisionDivision of Water Rightshigh
#D011CEQACalifornia Environmental Quality Acthigh
#D012PolicyPolicy for Maintaining Instream Flows in Northern California Coastal Streamshigh
#D013CDACumulative Diversion Analysishigh
#D014Cumulative Diversion AnalysisThe Policy utilizes a CDA to evaluate whether or not a proposed project, in combination with senior diversions, adversely affects the instream flows needed for the protection of fishery resources.high
#D015DemandFor purposes of the CDA, any reduction in discharge rates or volumes to a surface water body will be treated as a demand on current instream flows, analogous to a diversion.high
#D016OALOffice of Administrative Lawhigh
#D017SEDSubstitute Environmental Documenthigh
#D018CAISOCalifornia Independent System Operatorhigh
#D019CECCalifornia Energy Commissionhigh
#D020CalGEMCalifornia Geologic Energy Management Divisionhigh
#D021Class II UIC wellswells used to inject fluids that are associated with oil and natural gas production operations into the subsurfacehigh
#D022MOAMemorandum of Agreementhigh
#D023Water BoardsState and Regional Water Boardshigh
#D024UICUnderground Injection Controlhigh
#D025SB4Oil and Gas Groundwater Monitoringhigh