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Document ID us-ca-npdes-2025-10-17 Title National Pollutant Discharge Elimination System (NPDES) - Wastewater URL https://www.waterboards.ca.gov/water_issues/programs/npdes/ Jurisdiction /us/ca Subdomain(s) none Language Status completed Analyzed at 2026-05-12 04:54:13.148611+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (12)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001administrativeunknownmandatoryNPDES Permit Requirementwastewater, otherIf you discharge pollutants from a point source to a water of the United States you need an NPDES permit.If you discharge pollutants from a point source to a water of the United Stateshigh
#Q002administrativereportingmandatoryRegional Water Board Contact ProcedurewastewaterUsing the map, determine where your discharge will occur and contact the appropriate Regional Water Board NPDES Program Manager for that region.medium
#Q003administrativeunknownmandatoryWater Boards Responsibilitywastewater, drinking water, agricultural water, aquatic life, recreational water, otherIt is the responsibility of the Water Boards to preserve and enhance the quality of the state's waters through the development of water quality control plans and the issuance of (WDRs.high
#Q004administrativeoperationalmandatoryState Water Board Fee AdjustmentotherThe California Water Code requires the State Water Board to adjust the fees each fiscal year to conform with the revenue levels set forth in the California Budget Act.each fiscal yearhigh
#Q005operationaloperationalmandatoryRegional Water Board Compliance Oversight DutywastewaterRegional Water Boards... ensure compliance with their permits through compliance inspections, monitoring report reviews, and enforce actions, if necessary.for discharges regulated under NPDES permitshigh
#Q006operationaltreatmentmandatoryPOTW Pretreatment Program RequirementwastewaterPOTWs are required to have pretreatment programs when their total design flows are greater than five million gallons per day (5 mgd) and they receive industrial pollutants that could pass through or interfere with POTW operations.total design flows are greater than 5 mgd and they receive industrial pollutants that could pass through or interfere with POTW operationshigh
#Q007treatmenttreatmentmandatoryDental Amalgam Separator InstallationwastewaterInstall and maintain amalgam separators;dental offices that place and/or remove amalgamhigh
#Q008operationaltreatmentmandatoryDental Amalgam Discharge Elimination PracticeswastewaterImplement further necessary industrial practices to eliminate disposal of amalgam into the local sewer system;dental offices that place and/or remove amalgamhigh
#Q009reportingreportingmandatoryDental Amalgam Compliance ReportingwastewaterSubmit a one-time compliance report to their Control Authority by October 12, 2020.dental offices that place and/or remove amalgamhigh
#Q010monitoringoperationalmandatoryRegional Water Board Pretreatment Compliance AuditswastewaterAudits take place every five years.Regional Water Board's pretreatment program oversight of POTWshigh
#Q011monitoringoperationalmandatoryRegional Water Board Pretreatment Compliance InspectionswastewaterInspections usually occur every year, except when an audit is scheduled.Regional Water Board's pretreatment program oversight of POTWshigh
#Q012administrativeoperationalmandatoryState Water Board Pretreatment Program DutieswastewaterThis responsibility includes the following: Providing general oversight of the pretreatment program in California; Providing technical and legal assistance to Regional Water Boards’ staff, POTWs, and industrial users; Developing and maintaining a data management system; Providing information to USEPA and other organizations as required and/or requested; and Reviewing and ruling on petitions for review of Regional Water Board decisions.high

P Quantitative Requirements (0)

No quantitative requirements.

D Definitions (0)

No definitions.