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Document ID ca-on-ornncgwdrdfbbmrfaswwsdr-2019-10-09 Title ORDER R9-2019-0008 NPDES NO. CAG719001 GENERAL WASTE DISCHARGE REQUIREMENTS FOR DISCHARGES FROM BOATYARDS AND BOAT MAINTENANCE AND REPAIR FACILITIES ADJACENT TO SURFACE WATERS WITHIN THE SAN DIEGO REGION URL https://www.ontario.ca/page/water-management-policies-guidelines-provincial-water-quality-objectives Jurisdiction /ca/on Subdomain(s) none Language Status completed Analyzed at 2026-05-13 12:42:52.632588+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (81)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001operationaloperationalmandatoryMaintain Water Quality Better Than Objectivesaquatic life, recreational waterIn areas which have water quality better than the Provincial Water Quality Objectives, water quality shall be maintained at or above the Objectives.Applies to areas with water quality better than Provincial Water Quality Objectiveshigh
#Q002corrective_actionoperationalmandatoryPrevent Further Degradation and Upgrade Water Qualityaquatic life, recreational waterWater quality which presently does not meet the Provincial Water Quality Objectives shall not be degraded further and all practical measures shall be taken to upgrade the water quality to the Objectives.Applies to water quality which presently does not meet the Provincial Water Quality Objectiveshigh
#Q003monitoringoperationalmandatoryProblem Area Evaluations and Upgradesaquatic life, recreational waterEvaluations of existing conditions in problem areas shall be conducted and all reasonable and practical measures shall be taken to upgrade water quality to the Provincial Water Quality Objectives.Applies to problem areas not meeting objectiveshigh
#Q004prohibitionoperationalmandatoryProhibition of Degradation from New or Expanded DischargesotherWhere new or expanded discharges are proposed, no further degradation will be permitted and all practical measures shall be undertaken to upgrade water quality.Applies where new or expanded discharges are proposed in areas not meeting objectiveshigh
#Q005administrativereportingrecommendedPeriodic Review of DeviationsotherAs a condition to granting a deviation, a periodic review should be required of the reasons leading to the deviation and an evaluation of their continued relevance.Applies when a deviation from Policy 2 is grantedhigh
#Q006prohibitionhealthmandatoryPrevent Release of Banned Hazardous Substancesaquatic life, recreational waterPrevent the release, in any concentration, of hazardous substances that have been banned.Applies to banned hazardous substanceshigh
#Q007operationalhealthmandatoryMinimize Release of Unbanned Hazardous Substancesaquatic life, recreational waterEnsure that special measures are taken on a case by case basis to minimize the release of hazardous substances that have not been banned.Applies to hazardous substances that have not been bannedhigh
#Q008designoperationalrecommendedMinimization of Mixing ZonesotherMixing zones should be as small as possible and not interfere with beneficial uses. Mixing zones are not to be used as an alternative to reasonable and practical treatment.Applies to the design and implementation of mixing zoneshigh
#Q009prohibitionhealthmandatoryProhibition of Toxic Conditions in Mixing Zonesaquatic life, recreational water, drinking waterConditions within a mixing zone must not result in toxic conditions or irreparable environmental damage including risk to ecosystem integrity and human health nor interfere with water supply, recreational or other water uses.Applies to conditions within a mixing zonehigh
#Q010administrativeoperationalrecommendedProcedures for Establishing Effluent RequirementsotherIn establishing effluent requirements for discharges to surface waters, the procedures outlined below should be followed: 1. Site-specific receiving water assessments will be conducted to assess existing conditions and determine effluent requirements based on the waste assimilative capacity of the receiver. 2. The site-specific effluent requirement, so derived, will be compared, where applicable, to appropriate federal or provincial regulations or guidelines for effluent discharges and the most stringent requirement will be applied. 3. The effluent requirement derived from the above procedures, expressed as waste loadings and/or concentrations, will be incorporated into a Certificate of Approval or other control document. 4. For existing discharges in areas where water quality is degraded and does not meet the Provincial Water Quality Objectives, the Ministry may develop a pollution control program with each discharger to meet the effluent requirement determined from the above procedures.Applies when establishing effluent requirements for discharges to surface watershigh
#Q011treatmentoperationalmandatoryTreatment from Existing Regulated SourcesotherThe treatment or elimination of pollutants from existing regulated sources is required where the polluter fails to demonstrate that such measures are impractical and unnecessary to remediate use impairment, prevent further degradation and improve water quality.Applies to existing regulated sources of pollutionhigh
#Q012treatmentoperationalmandatoryTreatment from Unregulated SourcesotherThe treatment or elimination of pollution from unregulated sources will be required where it is demonstrated that such measures are practicable and necessary to correct use impairment and will prevent further degradation or improve water quality.Applies to unregulated sources of contaminationhigh
#Q013administrativeoperationalmandatoryControl of Water TakingsotherWater takings will be controlled to prevent interference with other uses of water wherever possible and to resolve such problems if they do occur.Applies generally to water takingshigh
#Q014reportingreportingguidanceRecords of Water WithdrawalsotherPermitees may be required to keep records of the withdrawals.Applies to permittees authorized by a Permit to Take Waterhigh
#Q015operationaloperationalmandatoryControl of Withdrawals and Dischargesaquatic life, recreational waterSurface and ground water withdrawals, and the discharge of water to surface water bodies will be controlled to assist in maintaining or restoring water quality for the protection of aquatic ecosystems and recreation and to provide for downstream withdrawal uses.high
#Q016operationaloperationalrecommendedSurface and Ground Water Conservation MeasuresotherAll reasonable and practical measures should be taken to conserve the quantity of surface and ground water to sustain ecosystem integrity and to maximize its availability for existing or potential uses.high
#Q017designoperationalmandatoryFlow Control Device InstallationotherWhere a new flowing well is constructed, a flow control device must be installed in accordance with the requirements of Ontario Regulation 903.Applies where a new flowing well is constructedhigh
#Q018corrective_actionoperationalmandatoryRestoration of Supplies upon InterferenceotherIf the taking of water from wells causes interference with streamflow, restoration of supplies is required if serious interference with surface water uses occur.Applies if the taking of water from wells causes serious interference with streamflow and surface water useshigh
#Q019administrativeoperationalmandatoryMaintenance of Downstream Flowaquatic lifePermits for stream takings shall contain a requirement that the taking of water be carried out in such a manner that downstream flow is not stopped or reduced to a rate that will interfere with downstream uses of water or the natural functions of the stream.Applies to permits for stream takingshigh
#Q020administrativeoperationalmandatoryAlteration of Permits Interfering with Other UsesotherA permit for a taking from any surface waterbody shall contain a requirement that if the taking interferes with the use of water by other persons, the terms and conditions of the permit may be altered.Applies to permits for taking from any surface waterbodyhigh
#Q021operationaloperationalmandatoryMaintenance of Downstream Flow in Seasonal Streamsaquatic lifeWhen water is taken from streams which cease to flow seasonally due to natural causes, downstream flow must be maintained whenever there is an inflow.Applies when water is taken from streams which cease to flow seasonallyhigh
#Q022designoperationalmandatoryCooling Water Intake Entrainment Minimizationaquatic lifeWith respect to the taking of cooling water, the design and location of the water intake must be such that entrainment of fish, including larval fish and eggs, and other aquatic life is minimized.Applies to the taking of cooling waterhigh
#Q023corrective_actionoperationalmandatoryElimination of Groundwater Taking Interferencedrinking water, otherIf a ground water taking authorized by permit interferes with other water supplies obtained from any adequate sources that were in use prior to the issuance of the permit, the permittee shall restore the affected supplies or reduce the taking so as to eliminate the interference.Applies if an authorized ground water taking interferes with pre-existing water supplieshigh
#Q024corrective_actionoperationalmandatoryRestoration of Flowing Well SupplyotherIn the event of interference with a flowing well supply, restoration of the supply is required, provided that the well was equipped with at least a shallow-well pump having an adequate intake located in the portion of the well that is in direct hydraulic connection with the water-bearing formation.Applies in the event of interference with an adequately equipped flowing well supplyhigh
#Q025corrective_actionoperationalmandatoryRestoration of Water Supply due to Non-Community OperationsotherWhere interference in a water serviced area is caused by an operation not associated with a community improvement, restoration of a water supply is required.Applies in water serviced areas where interference is caused by operations not associated with a community improvementhigh
#Q026corrective_actionoperationalmandatoryTemporary Water Supply ProvisionotherParties causing short-term interference with existing supplies where water service is or is not available are required to make available a temporary supply of water to those experiencing interference.Applies to parties causing short-term interference with existing water supplieshigh
#Q027prohibitionhealthmandatoryFreedom from Objectionable Conditionsaquatic life, recreational water, drinking waterAll waters shall be free from contaminating levels of substances and materials attributable to human activities which in themselves or in combination with other factors can: Settle to form objectionable deposits; Float as debris, scum or oil or other matter to form nuisances; Produce objectionable colour, odour, taste or turbidity; Injure, are toxic to, or produce adverse physiological or behavioral responses in humans, animals or plants; or Enhance the production of undesirable aquatic life or result in the dominance of nuisance species.Applies generally to all watershigh
#Q028prohibitionaestheticrecommendedAesthetic Quality of Recreational Waterrecreational waterWater used for swimming, bathing and other recreational activities should be aesthetically pleasing. The water should be devoid of debris, oil, scum and any substance which would produce an objectionable deposit, colour, odour, taste or turbidity.Applies to water used for swimming, bathing and other recreational activitieshigh
#Q029prohibitionhealthrecommendedProhibition of Oxygen Depletion in Hypolimnetic Watersaquatic lifeIn some hypolimnetic waters, dissolved oxygen is naturally lower than the concentrations specified in the above table. Such a condition should not be altered by adding oxygen demanding materials causing a depletion of oxygen.Applies to hypolimnetic waters with naturally lower dissolved oxygenhigh
#Q030prohibitionhealthrecommendedProhibition of Oil and Petrochemical Concentrationsaquatic life, recreational waterOil or petrochemicals should not be present in concentrations that: can be detected as a visible film, sheen, or discolouration on the surface; can be detected by odour; can cause tainting of edible aquatic organisms; can form deposits on shorelines and bottom sediments that are detectable by sight or odour, or are deleterious to resident aquatic organisms.Applies to all surface watershigh
#Q031operationalhealthrecommendedRadionuclide Exposure Minimizationdrinking water, otherRadiation exposure should be kept as low as reasonably achievable, economic and social factors being taken into account.high
#Q032prohibitionhealthmandatoryPrevention of Thermal Regime Alterationaquatic lifeThe natural thermal regime of any body of water shall not be altered so as to impair the quality of the natural environment. In particular, the diversity, distribution and abundance of plant and animal life shall not be significantly changed.Applies to the natural thermal regime of any body of waterhigh
#Q033operationaloperationalmandatoryCooling Water Temperature Proceduresaquatic life, otherUsers of cooling water shall meet both the Objectives for temperature outlined above and the "Procedures for the Taking and Discharge of Cooling Water" as outlined in the MOEE publication Deriving Receiving-Water Based, Point-Source Effluent Requirements for Ontario Waters (1994).Applies to users of cooling waterhigh
#Q034prohibitionhealthmandatoryWaste Dumping Prohibitionsaquatic life, recreational waterThe dumping, deposition or discharge of the following wastes from land, docks, or boats directly into receiving waters, or adjacent to such waters in any manner that may allow its being transported into the waters is prohibited: 1. Paint chips; 2. Blasting materials; 3. Paint overspray; 4. Paint spills; 5. Water contaminated with abrasive blast materials, paint, oils, fuels, lubricants, solvents, or petroleum; 6. Hydro-blast water; 7. Tank cleaning water used to remove sludge and/or dirt; 8. Clarified water from oil and water separators, except for storm water discharges treated by an oil and water separator and reported by the Discharger to the San Diego Water Board; 9. Steam cleaning water; 10. Pipe and tank hydrostatic test water; 11. Saltbox water; 12. Hydraulic oil leaks and spills; 13. Fuel leaks and spills; 14. Trash; 15. Refuse and rubbish including, but not limited to, any cans, bottles, paper, plastic, vegetable matter, or dead animals deposited or caused to be deposited by human activities; 16. Fiberglass dust; 17. Swept materials; 18. Ship repair and maintenance activity debris; 19. Waste zinc plates; 20. Marine fouling organisms except the discharge of marine fouling organism removed from unpainted, uncoated surfaces by underwater operations; 21. Demineralizer and reverse osmosis brine; 22. Oily bilge water; 23. Materials of petroleum origin in sufficient quantities to be visible; and 24. Polychlorinated biphenyl compounds, such as those used for transformer fluid.Applies to all land, docks, or boats adjacent to receiving watershigh
#Q035prohibitionhealthmandatoryStorm Water First Flush Prohibitionaquatic life, recreational waterThe discharge of the first flush of storm water from each storm (first 0.25 inches of rainfall) from maintenance and repair areas, storage areas, or other onsite locations where industrial activity may occur (including floating drydocks, if any) is prohibited.Applies to first 0.25 inches of rainfall from maintenance, repair, and storage areashigh
#Q036operationaloperationalmandatoryFloating Drydock Deck Cleaningaquatic lifePrior to submergence, or flooding, the entire area of the floating drydock deck shall be cleaned by scraping, broom cleaning, and power and pressure washing or other effective best management practices (BMPs) as soon as practical.Applies prior to every submergence or flooding eventhigh
#Q037administrativereportingmandatoryOnsite Record MaintenanceotherA copy of this General Order and the NOA shall be maintained onsite at the facility, and shall be available to San Diego Water Board, State Water Board, and USEPA personnel and/or their authorized representative at all times.high
#Q038designoperationalmandatorySWPPP Development and MaintenanceotherThe Discharger shall develop, implement, and maintain a Storm Water Pollution Prevention Plan (SWPPP) consistent with the requirements of Attachment J of this General Order.high
#Q039administrativeoperationalmandatoryVessel Owner/Operator NotificationswastewaterThe Discharger shall develop and implement a method of notifying the owner/operator of each vessel at the Dischargers leasehold of their obligation to prevent the discharge of waste and to comply with Basin Plan Prohibitions regarding the discharge of sewage from vesselsApplies to all vessels within the Discharger's leaseholdhigh
#Q040monitoringoperationalmandatoryAnnual No Exposure Facility InspectionotherInspect and evaluate the facility annually to determine that storm water exposed to industrial materials or equipment has not and will not be discharged to waters of the United States.Applicable to dischargers seeking No Exposure Certification (NEC)high
#Q041administrativereportingmandatorySubmit Notice of IntentotherAny person proposing to discharge industrial storm water runoff from a boatyard or a boat maintenance and repair facility located adjacent to a surface water in the San Diego Region shall submit a completed Notice of Intent (NOI) Form (Attachment G) with filing fee for coverage under this General Order and obtain authorization from the San Diego Water Board prior to discharging industrial storm water runoff.Applicable to new Dischargers proposing industrial storm water dischargehigh
#Q042administrativereportingmandatorySubmit Notice of TerminationotherThe Discharger shall submit a completed Notice of Termination (NOT) form (Attachment H) to the San Diego Water Board when coverage under this General Order is no longer required.Applicable when facility ownership changes, operations cease, or alternative coverage is obtainedhigh
#Q043administrativereportingmandatoryTransfer of Ownership ProcedureotherEnrollment under this General Order is not transferable. The enrolled Discharger must submit an NOT to the San Diego Water Board in the event of any change in control or ownership of land or waste discharge facilities presently owned or controlled by the enrolled Discharger. The new succeeding owner or operator must submit an NOI application of enrollment under this General Order and obtain authorization from the San Diego Water Board.Applicable upon change in control or ownershiphigh
#Q044prohibitionoperationalmandatoryProhibition of Unauthorized Liquids DischargeotherDischarges of liquids or materials other than industrial storm water or floating drydock ballast water and flood water, either directly or indirectly to waters of the United States, are prohibited.high
#Q045prohibitionoperationalmandatoryProhibition of Reused Industrial Storm Water DischargeotherIf a Discharger reuses or recycles stored or contained industrial storm water in processing activities (e.g., hydrowashing vessels, general vessel washdown, etc.), then the reused/recycled water shall be considered industrial process water and is prohibited from discharge to waters of the United States and/or State under this General Order.Applicable when storm water is reused or recycled in processing activitieshigh
#Q046prohibitionoperationalmandatoryFloating Drydock Ballast and Flood Water Purityaquatic lifeIf a floating drydock is used, any discharge other than receiving water in the floating drydock ballast tank discharge or in flood water is prohibited. The discharge of sediment, chlorine, biocides, or other maintenance byproducts from the floating drydock ballast tanks or in the flood water is prohibited.Applicable to floating drydock operationshigh
#Q047corrective_actionoperationalmandatoryDuty to Mitigate Adverse ImpactsotherThe Discharger shall take all reasonable steps to minimize or correct any adverse impact on the environment resulting from noncompliance with this General Order or the NOA, including such accelerated or additional monitoring as may be necessary to determine the nature, and effect of the noncomplying discharge.Applicable in the event of noncompliancehigh
#Q048reportingreportingmandatorySWPPP Submission and Amendment DeadlineotherA completed copy of the SWPPP shall be submitted to the San Diego Water Board within 90 days of the effective date for this General Order or of submission of an NOA. The Discharger shall amend its SWPPP in accordance with 40 CFR 125.100 through 125.104 whenever there is a change in facility/leasehold/work area design, construction, operation, or maintenance, which materially affects the potential for discharge of toxic and hazardous pollutant to surface waters.Submission within 90 days; amendment required upon material facility changeshigh
#Q049designoperationalmandatoryMaintenance Area Isolation via BermsotherAppropriate means, such as but not limited to berms, shall be used to isolate the Facility's maintenance/repair area(s) to prevent storm water run-on from commingling with the industrial storm water discharge from the maintenance/repair area, and to prevent storm water runoff to offsite areas.Applicable to facility maintenance and repair areashigh
#Q050reportingreportingmandatoryNEC Annual Coverage RecertificationotherBy August 1 of each reporting year beginning in 2020, any Discharger who has previously registered for NEC coverage shall annually submit and certify an NEC Annual Certification Report prepared and certified by a California licensed professional engineer, competent and proficient in the fields pertinent to the report and qualified to prepare such report, demonstrating that the facility has been evaluated, and that none of the Industrial Materials or Activities described above are, or will be in the foreseeable future, exposed to precipitation and have the potential to be discharged in storm water, aerially, or by other means.Required for facilities with No Exposure Certification (NEC)high
#Q051corrective_actionoperationalmandatoryNAL Level 1 Exceedance Response ActionsotherEvaluate industrial pollutant sources and the Storm Water Pollution Prevention Plan (SWPPP) to identify where additional operational source control BMPs and/or SWPPP implementation measures are necessary to prevent or reduce industrial pollutants... Implement additional BMPs and SWPPP implementation measures as soon as practicable; and Revise the SWPPP as soon as practicable, but no later than October 1 of the following reporting year.In the event that sampling results indicate that an Instantaneous Maximum or Annual Average NAL is exceededhigh
#Q052corrective_actionoperationalmandatoryNAL Level 2 Exceedance Response ActionsotherEvaluate industrial pollutant sources and the SWPPP to identify locations and install structural and/or treatment control BMPs as necessary to prevent or reduce industrial pollutants in industrial storm water discharges in compliance with BAT/BCT.In any subsequent reporting year that sampling indicates a Discharger in Level 1 status exceeds an Instantaneous Maximum or Annual Average NALhigh
#Q053designoperationalmandatoryBMP Design Storm Frequency StandardotherAll treatment BMPs for any pollutant shall be designed for no less than a 5-year frequency, 24-hour storm event.high
#Q054operationaloperationalmandatoryDisposal of Removed Solids from Liquid WastesotherThe Discharger shall dispose of solids removed from liquid wastes in a manner that is consistent with title 27 of the CCR and approved by the San Diego Water Board.high
#Q055reportingreportingmandatoryFloating Drydock Flooding NotificationotherThe Discharger shall provide written notification to the San Diego Water Board 48 hours prior to flooding of its floating drydock.Applicable to facilities with floating drydockshigh
#Q056monitoringoperationalmandatoryFloating Drydock Condition DocumentationotherThe Discharger shall document the condition of its floating drydock prior to each flooding. The conditions shall be digitally documented either by video or photographs.Applicable to facilities with floating drydockshigh
#Q057monitoringoperationalmandatoryWeekly BMP Inspection RequirementotherThe Discharger shall conduct BMP Inspections of all work areas within its Facility for the proper implementation of BMPs and the presence of unauthorized non-storm water discharges... BMP Inspections shall be conducted on a weekly basis all year round.high
#Q058administrativereportingmandatoryHazardous Materials RecordkeepingotherThe Discharger shall maintain records of the hazardous materials used at its Facility over the previous 5-year period and make these records available to the San Diego Water Board upon request.high
#Q059reportingreportingmandatorySpill and Illicit Discharge Logging and ReportingotherThe Discharger shall log and report all spills and illicit discharges to surface water originating within and/or from its leasehold.high
#Q060designoperationalmandatoryWater and Sediment Monitoring Plan SubmissionotherThe Discharger shall prepare and submit a Water and Sediment Monitoring Plan to assess compliance with Receiving Water Limitations of this General Order. The Water and Sediment Monitoring Plan shall be submitted within 12 months of the effective date of this General Order.Applicable to Category 1 Dischargershigh
#Q061administrativereportingmandatoryInitial Investigation TRE Work Plan SubmissionotherThe Discharger shall prepare and submit a copy of the Discharger's Initial Investigation TRE Work Plan to the San Diego Water Board within 90 days of the effective date of this General Order.Applicable to all dischargers except those with NEC coveragehigh
#Q062monitoringoperationalmandatoryFlow Measurement Device CalibrationotherAll flow measurement devices shall be calibrated at least once per year, or more frequently, to ensure continued accuracy of the devices (i.e., no more than 12 months between calibrations for the flow measurement devises).high
#Q063monitoringreportingmandatoryLaboratory Quality Assurance Plan ImplementationotherThe Discharger shall have, and implement, an acceptable written quality assurance (QA) plan for laboratory analyses.high
#Q064designoperationalmandatoryClimate Change Impact ProtectionotherAll waste and storm water treatment, containment and disposal facilities shall be protected against regional impacts due to climate change including but not limited to sea level rise, coastal water surges, changes in receiving water chemistry and the gradual warming of water body temperatures.high
#Q065administrativereportingmandatoryExisting Boatyard NOI Submission DeadlineotherExisting Boatyards shall submit a complete NOI Form (Attachment G) no later than February 6, 2020 or else risk losing permit coverage.Applicable to boatyards previously enrolled under General Order No. R9-2013-0026high
#Q066administrativereportingmandatoryCategory 2 Engineering Report SubmissionotherCategory 2 Dischargers must submit an engineering report certifying that the facility is engineered and constructed to only discharge industrial storm water from a 5-year frequency, 24-hour storm event or larger to waters of the United States.Applicable to boatyards only discharging from 5-year/24-hour storms or largerhigh
#Q067administrativereportingmandatoryRegional Monitoring ParticipationotherThe Discharger shall, as directed by the San Diego Water Board, participate with other regulated entities, other interested parties, and the San Diego Water Board in development and implementation of new and improved monitoring and assessment programs for receiving waters in the San Diego Region and discharges to those waters.Upon direction by the San Diego Water Boardhigh
#Q068reportingreportingmandatory24-Hour Noncompliance ReportingotherThe Discharger shall report any noncompliance that may endanger health or the environment. Any information shall be provided orally within 24 hours from the time the Discharger becomes aware of the circumstances. A written submission shall also be provided within five (5) days...In the event of noncompliance endangering health or environmenthigh
#Q069reportingreportingmandatoryTabular Data ArrangementotherThe Discharger shall arrange all reported data in a tabular format. The data shall be summarized to clearly illustrate whether the Facility is operating in compliance with interim and/or final effluent limitations.high
#Q070reportingreportingmandatorySMR Cover Letter RequirementsotherThe Discharger shall attach a cover letter to the SMR. The information contained in the cover letter shall clearly identify violations of the WDRs; discuss corrective actions taken or planned; and the proposed time schedule for corrective actions.high
#Q071administrativereportingmandatoryElectronic SMR SubmissionotherThe Discharger shall electronically submit SMRs using the State Water Board’s California Integrated Water Quality System (CIWQS) Program website at http://www.waterboards.ca.gov/water_issues/programs/ciwqs/.high
#Q072administrativereportingmandatoryStaffing and Resources for ReportingotherThe Discharger shall maintain sufficient staffing and resources to ensure SMR submittals are complete and timely. This includes provision for training and supervision of individuals on how to prepare and submit SMRs.high
#Q073monitoringoperationalmandatoryNon-Discharging Storm Event RecordingotherThe Discharger shall record all storm events that that do not produce a discharge to surface water.high
#Q074monitoringoperationalmandatoryMonthly Storage Area Visual ObservationsotherMonthly, the Discharger shall visually observe storm water storage and containment areas to detect leaks and ensure appropriate maintenance.high
#Q075administrativeoperationalmandatoryLaboratory Certification RequirementotherAll analyses shall be performed in a laboratory certified to perform such analyses by the State Water Resource Control Board (State Water Board), Division of Drinking Water (DDW) or a laboratory approved by the San Diego Water Board.high
#Q076monitoringoperationalmandatoryLaboratory Calibration Standard InstructionotherThe Discharger shall instruct laboratories to establish calibration standards so that the RL value (or its equivalent if there is differential treatment of samples relative to calibration standards) is the lowest calibration standard.high
#Q077designoperationalmandatoryWaste Management System Integrityaquatic lifeWaste management systems must be designed and operated in a manner that will maintain the indigenous marine life and a healthy and diverse marine community.high
#Q078operationaltreatmentmandatoryEffluent Dilution Minimizationaquatic lifeWaste effluents shall be discharged in a manner that provides sufficient initial dilution to minimize the concentrations of substances not removed in treatment.high
#Q079prohibitionoperationalmandatoryProhibition of Discharge Pollutionaquatic life, otherThe Discharger shall not cause pollution, contamination, or nuisance, as those terms are defined in Water Code section 13050, as a result of the treatment or discharge of wastes.high
#Q080corrective_actiontreatmentmandatoryPost-Identification Toxicity Controlaquatic lifeThe Discharger shall take all reasonable steps to control toxicity once the source of toxicity is identified.Applicable after source identification via TRE/TIEhigh
#Q081reportingreportingmandatoryTotal Metals Reporting StandardotherAll metals shall be reported as total metals.Applicable to all laboratory analyses reporting for metalshigh

P Quantitative Requirements (92)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001operationaloperationalmandatoryPermit to Take Water Thresholdotherrequirement> 50000 litres/daytakings in excess of 50,000 litres in a day require authorization by means of a Permit to Take Watermostly applies to takings except for individual ordinary household purposes, livestock watering, and fire fightinghigh
#P002chemicalhealthrecommendedAmmonia (un-ionized)aquatic liferequirement20 µg/LPWQO for un-ionized ammoniadepends on temperature and pH conditionshigh
#P003chemicalhealthrecommendedArsenicaquatic liferequirement100 µg/LPWQOhigh
#P004chemicalhealthrecommendedArsenic (revised)aquatic liferequirement5 µg/LInterim PWQOWhere a greater level of aquatic protection is appropriate, the more stringent Interim PWQO may be usedhigh
#P005chemicalhealthrecommendedCadmiumaquatic liferequirement0.2 µg/LPWQOhigh
#P006chemicalhealthrecommendedChlorineaquatic liferequirement2 µg/LPWQOhigh
#P007chemicalhealthrecommendedChromium VIaquatic liferequirement1 µg/LPWQO for hexavalent chromiumhigh
#P008chemicalhealthrecommendedChromium IIIaquatic liferequirement8.9 µg/LPWQO for trivalent chromiumhigh
#P009chemicalhealthrecommendedCopperaquatic liferequirement5 µg/LInterim PWQOhigh
#P010microbiologicalhealthrecommendedEscherichia colirecreational waterrequirement100 E. coli per 100 mLrecreational water quality guideline published by the Ontario Ministry of Health in 1992Based on a geometric mean of at least 5 samples per site taken within a given swimming area and collected within a one month periodhigh
#P011chemicalhealthrecommendedIronaquatic liferequirement300 µg/LPWQOhigh
#P012chemicalhealthrecommendedLeadaquatic liferequirement5 µg/LPWQOAlkalinity as CaCO3 < 20 mg/Lhigh
#P013chemicalhealthrecommendedLeadaquatic liferequirement25 µg/LPWQOAlkalinity as CaCO3 > 80 mg/Lhigh
#P014chemicalhealthrecommendedMercuryaquatic liferequirement0.2 µg/LPWQOhigh
#P015physicalhealthrecommendedpHaquatic life, recreational waterrequirement6.5 - 8.5 pHThe pH should be maintained within the range of 6.5 - 8.5to protect aquatic life; and both alkaline and acid waters may cause irritation to anyone using the water for recreational purposeshigh
#P016chemicalaestheticrecommendedPhosphorus, totalaquatic liferequirement20 µg/LTo avoid nuisance concentrations of algae in lakesaverage total phosphorus concentrations for the ice-free period should not exceed 20 µg/Lhigh
#P017chemicalaestheticrecommendedPhosphorus, totalaquatic liferequirement10 µg/LA high level of protection against aesthetic deteriorationtotal phosphorus concentration for the ice-free period of 10 µg/L or less. This should apply to all lakes naturally below this valuehigh
#P018radiologicalhealthrecommended137Cesiumaquatic liferequirement50 Becquerels/LitreProvincial Water Quality Objectivebased on the total concentration in an unfiltered water samplehigh
#P019radiologicalhealthrecommendedTritiumaquatic liferequirement7000 Becquerels/LitreProvincial Water Quality Objectivebased on the total concentration in an unfiltered water samplehigh
#P020physicalhealthmandatoryTemperatureaquatic liferequirement<= 30 °CThe maximum temperature of the receiving body of water, at any point in the thermal plume outside a mixing zone, shall not exceed 30 °Chigh
#P021chemicalhealthrecommendedDDT and Metabolitesaquatic liferequirement<= 1 µg/gFish tissue residue criteriaThe sum of the concentrations of DDT and its metabolites in whole-fish should not exceed 1 µg/g (wet weight basis) for the protection of fish-consuming birdshigh
#P022chemicalhealthrecommendedMercuryaquatic liferequirement<= 0.5 µg/gFish tissue residue criteriaConcentrations of mercury in whole-fish should not exceed 0.5 µg/g (wet weight basis) for the protection of aquatic life and fish-consuming birdshigh
#P023physicaltreatmentmandatoryFirst Flush Storm Water Discharge Prohibitionotherrequirement0.25 inchesProhibition of the first flush of storm water from maintenance/repair/storage areasApplies to each storm eventhigh
#P024chemicalhealthmandatoryIndustrial Storm Water Chronic Toxicity MDELotherMACPass and/or <50% Effect TST OutcomeMaximum Daily Effluent Limitation for chronic toxicity in industrial storm waterMeasured at monitoring location SW-SDDRIS or as specified in NOAhigh
#P025chemicaloperationalmandatoryDrydock Ballast/Flood Water Oil and Grease AMELwastewaterMAC25 mg/LAverage Monthly Effluent Limitation for drydock dischargeCalculated as concentration; also applicable as mass-based (lbs/day)high
#P026physicaloperationalmandatoryDrydock Ballast/Flood Water Settleable Solids AMELwastewaterMAC1.0 ml/LAverage Monthly Effluent Limitation for drydock dischargehigh
#P027physicalhealthmandatoryDrydock Ballast/Flood Water pH Rangewastewaterrequirement6.0 - 9.0 Standard UnitsInstantaneous minimum and maximum for drydock dischargehigh
#P028physicalhealthmandatoryDrydock Ballast/Flood Water Temperature Differentialwastewaterrequirement<= 20 °FInstantaneous maximum temperature above receiving waterMeasured relative to natural temperature of receiving waterhigh
#P029physicaloperationalguidelinepH Numeric Action Level (NAL)otherrequirement6.0 - 9.0 pH unitsInstantaneous Maximum NAL Range for industrial storm waterhigh
#P030physicaloperationalguidelineTotal Suspended Solids Annual Average NALotherrequirement100 mg/LAnnual average threshold for corrective action in storm waterhigh
#P031chemicaloperationalguidelineZinc Annual Average NALotherrequirement0.26 mg/LTotal Recoverable Zinc threshold for industrial storm waterBased on hardness tables in EPA 2008 MSGPhigh
#P032chemicaloperationalguidelineCopper Annual Average NALotherrequirement0.0332 mg/LTotal Recoverable Copper threshold for industrial storm waterBased on hardness tables in EPA 2008 MSGPhigh
#P033physicaloperationalmandatoryDrydock Ballast/Flood Water Total Suspended Solids AMELwastewaterMAC60 mg/LAverage Monthly Effluent Limitation for drydock dischargeCalculated as concentration; also applicable as mass-based (lbs/day)high
#P034physicalaestheticmandatoryDrydock Ballast/Flood Water Turbidity AMELwastewaterMAC75 NTUAverage Monthly Effluent Limitation for drydock dischargehigh
#P035physicalaestheticmandatoryDrydock Ballast/Flood Water Turbidity Weekly AveragewastewaterMAC100 NTUWeekly Average Effluent Limitation for drydock dischargehigh
#P036physicalaestheticmandatoryDrydock Ballast/Flood Water Turbidity Instantaneous MaximumwastewaterMAC225 NTUInstantaneous Maximum Effluent Limitation for drydock dischargehigh
#P037chemicaloperationalmandatoryDrydock Ballast/Flood Water Oil and Grease Weekly AveragewastewaterMAC40 mg/LWeekly Average Effluent Limitation for drydock dischargehigh
#P038chemicaloperationalmandatoryDrydock Ballast/Flood Water Oil and Grease Instantaneous MaximumwastewaterMAC75 mg/LInstantaneous Maximum Effluent Limitation for drydock dischargehigh
#P039physicaloperationalmandatoryDrydock Ballast/Flood Water Settleable Solids Weekly AveragewastewaterMAC1.5 ml/LWeekly Average Effluent Limitation for drydock dischargehigh
#P040physicaloperationalmandatoryDrydock Ballast/Flood Water Settleable Solids Instantaneous MaximumwastewaterMAC3.0 ml/LInstantaneous Maximum Effluent Limitation for drydock dischargehigh
#P041chemicalhealthmandatoryDrydock Ballast/Flood Water Chronic Toxicity MDELwastewaterMACPass and/or <50% Effect TST OutcomeMaximum Daily Effluent Limitation for chronic toxicity in drydock dischargehigh
#P042chemicaloperationalguidelineTotal Oil & Grease Annual Average NALotherrequirement15 mg/LAnnual average threshold for corrective action in storm waterhigh
#P043chemicaloperationalguidelineTotal Oil & Grease Instantaneous Maximum NALotherrequirement25 mg/LInstantaneous maximum threshold for corrective action in storm waterhigh
#P044physicaloperationalguidelineTotal Suspended Solids Instantaneous Maximum NALotherrequirement400 mg/LInstantaneous maximum threshold for corrective action in storm waterhigh
#P045chemicaloperationalguidelineLead Annual Average NALotherrequirement0.262 mg/LTotal Recoverable Lead threshold for industrial storm waterBased on hardness tables in EPA 2008 MSGPhigh
#P046chemicaloperationalguidelineChemical Oxygen Demand Annual Average NALotherrequirement120 mg/LAnnual average threshold for corrective action in storm waterhigh
#P047chemicaloperationalguidelineBiochemical Oxygen Demand Annual Average NALotherrequirement30 mg/LAnnual average threshold for corrective action in storm waterhigh
#P048microbiologicalhealthmandatoryE. coli (REC-1, Salinity <= 1 ppt)drinking water, recreational waterrequirement<= 100 CFU/100 mLSix-week rolling geometric mean concentrationwhere salinity is <= 1 ppt 95 percent or more of the timehigh
#P049microbiologicalhealthmandatoryEnterococci (REC-1, Salinity > 1 ppt)recreational waterrequirement<= 30 CFU/100 mLSix-week rolling geometric mean concentrationwhere salinity is > 1 ppt five percent or more of the timehigh
#P050microbiologicalhealthmandatoryShellfish Harvesting Total Coliform Medianagricultural water, otherrequirement<= 70 organisms per 100 mLMedian total coliform concentration throughout the water columnany 30-day periodhigh
#P051chemicalhealthmandatoryDissolved Oxygen Minimum (Bays/Estuaries)aquatic lifeMAC>= 5.0 mg/LDissolved oxygen concentrationat any timehigh
#P052chemicalhealthmandatoryUn-ionized Ammonia (Bays/Estuaries)aquatic lifeMAC<= 0.025 mg/L (as N)Concentrations of un-ionized ammonia (NH3)discharge of wasteshigh
#P053physicalhealthmandatoryReceiving Water pH Range (Bays/Estuaries)aquatic life, recreational waterrequirement7.0 - 9.0 Standard UnitspH level of the receiving watershall not be depressed below 7.0 nor raised above 9.0high
#P054microbiologicalhealthmandatoryOcean Total Coliform (30-day Geomean)recreational waterMAC<= 1000 per 100 mlGeometric mean of the five most recent samplesOcean Waters within 1000 feet of shoreline or 30-foot depth contourhigh
#P055designtreatmentmandatoryCompliance Storm Event Frequencyotherrequirement>= 5-year frequency, 24-hour stormDesign standard for all treatment BMPshigh
#P056operationalreportingmandatoryIndividual NPDES Permit Volume Thresholdotherrequirement> 10 million gallons per yearVolume threshold where an individual NPDES permit may be requiredhigh
#P057chemicalhealthmandatoryChronic Toxicity Fail Percent Effect Thresholdaquatic lifeMAC>= 50 %The chronic toxicity MDEL is exceeded when a toxicity test results in a 'Fail' and the percent effect is >= 50%measured at the IWC using the TST approachhigh
#P058microbiologicalhealthmandatoryBacteria STV (REC-1, Salinity <= 1 ppt)recreational waterrequirement320 CFU/100 mLStatistical threshold value (STV) for E. coli in waters with salinity <= 1 pptNot to be exceeded more than 10 percent of samples in a calendar monthhigh
#P059microbiologicalhealthmandatoryBacteria STV (REC-1, Salinity > 1 ppt)recreational waterrequirement110 CFU/100 mLStatistical threshold value (STV) for Enterococci in waters with salinity > 1 pptNot to be exceeded more than 10 percent of samples in a calendar monthhigh
#P060microbiologicalhealthmandatorySan Diego Bay Whole Fish Handling Bacteria Limitotherrequirement<= 7 organisms per mLDensity of E. coli in San Diego Bay waters used for whole fish handlingIn more than 20 percent of any 20 daily consecutive sampleshigh
#P061microbiologicalhealthmandatoryOcean Fecal Coliform (30-day Geomean)recreational waterMAC<= 200 per 100 mlGeometric mean of the five most recent samples for ocean water bacterial objectivesWithin 1,000 feet of shoreline or 30-foot depth contourhigh
#P062microbiologicalhealthmandatoryOcean Enterococcus (30-day Geomean)recreational waterMAC<= 35 per 100 mlGeometric mean of the five most recent samples for ocean water bacterial objectivesWithin 1,000 feet of shoreline or 30-foot depth contourhigh
#P063chemicalhealthmandatoryOcean Dissolved Oxygen Depressionaquatic lifeMAC<= 10 percentDepression of dissolved oxygen from natural levels in ocean watersAs a result of the discharge of oxygen demanding waste materialshigh
#P064operationaloperationalmandatoryFlow Measurement Device Accuracyotherrequirement< 5 percentMaximum deviation from true discharge rates for flow measurement devicesThroughout the range of expected discharge volumeshigh
#P065operationaloperationalmandatoryFlow Meter Calibration Frequencyotherrequirement12 monthsMaximum interval between calibrations for flow measurement devicesCalibrated at least once per yearhigh
#P066operationaloperationalmandatoryToxicity Sample Maximum Holding Timeotherrequirement<= 72 hoursMaximum allowable time between sample collection and test initiation for toxicityhigh
#P067operationaloperationalmandatoryStorm Water Sample Collection Windowotherrequirement4 hoursTimeframe for collecting industrial storm water samples for grab parametersDuring the first four hours of dischargehigh
#P068microbiologicalhealthmandatoryOcean Total Coliform Single Sample Maximumrecreational waterMAC10000 per 100 mlOcean water bacteria objective for waters designated as REC-1Within 1,000 feet of shoreline or 30-foot depth contourhigh
#P069microbiologicalhealthmandatoryOcean Fecal Coliform Single Sample Maximumrecreational waterMAC400 per 100 mlOcean water bacteria objective for waters designated as REC-1Within 1,000 feet of shoreline or 30-foot depth contourhigh
#P070microbiologicalhealthmandatoryOcean Enterococcus Single Sample Maximumrecreational waterMAC104 per 100 mlOcean water bacteria objective for waters designated as REC-1Within 1,000 feet of shoreline or 30-foot depth contourhigh
#P071microbiologicalhealthmandatoryShellfish Harvesting Upper ThresholdotherMAC230 per 100 mLUpper limit for total coliform in shellfish harvesting watersFive-tube decimal dilution testhigh
#P072chemicalhealthmandatoryAnnual Mean Dissolved Oxygenaquatic lifeMAC>= 7 mg/LAnnual mean dissolved oxygen concentration for bays and estuariesShall not be less than 7 mg/L more than 10 percent of the timehigh
#P073physicalhealthmandatoryReceiving Water pH Varianceaquatic life, recreational waterrequirement0.2 Standard UnitsAllowable pH change from normal ambient pHApplies to both bays/estuaries and ocean watershigh
#P074microbiologicalhealthmandatoryOcean Coliform Ratio Limitrecreational waterMAC1000 per 100 mlTotal coliform density limit when fecal coliform/total coliform ratio exceeds 0.1Within 1,000 feet of shoreline or 30-foot depth contourhigh
#P075operationaloperationalmandatoryIndividual Permit Duration Thresholdotherrequirement> 3 yearsCases where an individual NPDES permit may be requiredwhere the duration of a discharge exceeds this valuehigh
#P076operationalreportingmandatoryLevel 1 Status Response Timelineotherrequirement60 daysWithin this timeframe of obtaining Level 1 status, the Discharger shall evaluate sources and SWPPPFollowing an Instantaneous Maximum or Annual Average NAL exceedancehigh
#P077operationaloperationalmandatoryBaseline Status Return Criteriaotherrequirement8 consecutive QSEsDischargers in Level 1 or Level 2 status will return to baseline status upon these resultsResulting in no exceedances of Instantaneous Maximum or Annual Average NAL valueshigh
#P078microbiologicalhealthmandatoryShellfish Harvesting Total Coliform (Three-Tube)otherMAC330 organisms per 100 mLTotal coliform limit for shellfish harvesting watersWhen a three-tube decimal dilution test is usedhigh
#P079physicalaestheticmandatoryEstuary Transparency Minimumaquatic liferequirement>= 50 percentTransparency of waters in lagoons and estuariesCalculated as percentage of the depthhigh
#P080physicalaestheticmandatoryTurbidity Increase Limit (0-50 NTU Background)aquatic liferequirement<= 20 percentAllowable turbidity increase over natural levelsLocations with a natural turbidity of 0 to 50 NTUhigh
#P081physicalaestheticmandatoryTurbidity Increase Limit (50-100 NTU Background)aquatic liferequirement10 NTUAllowable turbidity increase over natural levelsLocations with a natural turbidity of 50 to 100 NTUhigh
#P082physicalaestheticmandatorySan Diego Bay Transparency Minimumaquatic liferequirement>= 8 feetWithin San Diego Bay, transparency insofar as it may be influenced by controllable factorsIn more than 20 percent of readings in any zonehigh
#P083operationalreportingmandatoryRecords Retention Period (General)otherrequirement>= 3 yearsThe Discharger shall retain records of all monitoring informationFrom the date of sample, measurement, report or applicationhigh
#P084operationalreportingmandatoryNoncompliance Oral Reporting Windowotherrequirement24 hoursOral report of any noncompliance that may endanger health or the environmentFrom the time the Discharger becomes aware of the circumstanceshigh
#P085operationalreportingmandatoryNoncompliance Written Reporting Timelineotherrequirement5 daysWritten submission of noncompliance that may endanger health or environmentFollowing the oral report/awareness of circumstanceshigh
#P086chemicalreportingmandatoryRoutine Toxic Notification Level (General)otherrequirement100 µg/LNotification level for routine/frequent toxic pollutant discharge not limited in Orderhigh
#P087chemicalreportingmandatoryRoutine Toxic Notification Level (Acrolein/Acrylonitrile)otherrequirement200 µg/LNotification level for routine/frequent dischargeSpecific to acrolein and acrylonitrilehigh
#P088chemicalreportingmandatoryRoutine Toxic Notification Level (Antimony)otherrequirement1 mg/LNotification level for routine/frequent dischargeSpecific to antimonyhigh
#P089chemicalreportingmandatoryNon-Routine Toxic Notification Level (General)otherrequirement500 µg/LNotification level for non-routine/infrequent toxic pollutant dischargehigh
#P090operationaloperationalmandatoryQSE Dry Period Criterionotherrequirement>= 48 hoursPreceding dry period for a Qualifying Storm EventNo discharge from any drainage area prior to the eventhigh
#P091operationaloperationalguidelineNEC Temporary Shelter Durationotherrequirement<= 90 daysNo Exposure Certification (NEC) exclusion from shelter requirementDue to facility construction or remodelinghigh
#P092operationalreportingmandatoryDrydock Flooding Notification Windowotherrequirement48 hoursWritten notification required prior to flooding of floating drydockhigh

D Definitions (107)

Req ID Category Name Context Confidence
#D001Waste'Waste' includes sewage and any and all other waste substances, liquid, solid, gaseous, or radioactive, associated with human habitation, or of human or animal origin, or from any producing, manufacturing, or processing operation, including waste placed within containers of whatever nature prior to, and for purposes of, disposal.high
#D002Waters of the state'Waters of the state' means any surface water or groundwater, including saline waters, within the boundaries of the state.high
#D003Beneficial uses'Beneficial uses' of the waters of the state that may be protected against quality degradation include, but are not limited to, domestic, municipal, agricultural and industrial supply; power generation; recreation; aesthetic enjoyment; navigation; and preservation and enhancement of fish, wildlife, and other aquatic resources or preserves.high
#D004Water quality objectives'Water quality objectives' means the limits or levels of water quality constituents or characteristics which are established for the reasonable protection of beneficial uses of water or the prevention of nuisance within a specific area.high
#D005Water quality control'Water quality control' means the regulation of any activity or factor which may affect the quality of the waters of the state and includes the prevention and correction of water pollution and nuisance.high
#D006Contamination'Contamination' means an impairment of the quality of the waters of the state by waste to a degree which creates a hazard to the public health through poisoning or through the spread of disease. 'Contamination' includes any equivalent effect resulting from the disposal of waste, whether or not waters of the state are affected.high
#D007Pollution'Pollution' means an alteration of the quality of the waters of the state by waste to a degree which unreasonably affects either of the following: (A) The waters for beneficial uses. (B) Facilities which serve these beneficial uses.high
#D008Nuisance'Nuisance' means anything which meets all of the following requirements: (1) Is injurious to health, or is indecent or offensive to the senses, or an obstruction to the free use of property, so as to interfere with the comfortable enjoyment of life or property. (2) Affects at the same time an entire community or neighborhood, or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal. (3) Occurs during, or as a result of, the treatment or disposal of wastes.high
#D009Recycled water'Recycled water' means water which, as a result of treatment of waste, is suitable for a direct beneficial use or a controlled use that would not otherwise occur and is therefor considered a valuable resource.high
#D010Injection well'injection well' means any bored, drilled, or driven shaft, dug pit, or hole in the ground into which waste or fluid is discharged, and any associated subsurface appurtenances, and the depth of which is greater than the circumference of the shaft, pit, or hole.high
#D011Direct potable reuse'Direct potable reuse' means the planned introduction of recycled water either directly into a public water system, as defined in Section 116275 of the Health and Safety Code, or into a raw water supply immediately upstream of a water treatment plant.high
#D012Indirect potable reuse for groundwater recharge'Indirect potable reuse for groundwater recharge' means the planned use of recycled water for replenishment of a groundwater basin or an aquifer that has been designated as a source of water supply for a public water system, as defined in Section 116275 of the Health and Safety Code.high
#D013Wastewater treatment plant'Wastewater treatment plant' means any of the following: (A) Any facility owned by a state, local, or federal agency and used in the treatment or reclamation of sewage or industrial wastes. (B) Any privately owned facility used in the treatment or reclamation of sewage or industrial wastes, and regulated by the Public Utilities Commission pursuant to Sections 216 and 230.6 of, and Chapter 4 (commencing with Section 701) of Part 1 of Division 1 of, the Public Utilities Code. (C) Any privately owned facility used primarily in the treatment or reclamation of sewage for which the state board or a regional board has issued waste discharge requirements.high
#D014Well or water well'Well' or 'water well' as used in this chapter, means any artificial excavation constructed by any method for the purpose of extracting water from, or injecting water into, the underground.high
#D015Waters of the United StatesGenerally refers to surface waters, as defined for the purposes of the federal Clean Water Act (CWA). For the purpose of this Order, the terms 'surface water' and 'receiving water' are interchangeably used to mean 'waters of the United States' unless noted otherwise.high
#D016No Exposureall Industrial Materials and Activities are protected by a stormresistant shelter to prevent exposure to rain, snow, snowmelt, and/or runoff.high
#D017Industrial Materials and Activitiesincludes, but is not limited to, material handling activities or equipment, industrial machinery, raw materials, intermediate products, by-products, final products, or waste products.high
#D018Material Handling Activitiesincludes the storage, loading and unloading, transportation, or conveyance of any raw material, intermediate product, final product, or waste product.high
#D019Sealedbanded or otherwise secured, but without operational taps or valves.high
#D020Storm-Resistant Sheltersincludes completely roofed and walled buildings or structures. They also include structures with only a top cover supported by permanent supports but with no side coverings, provided material within the structure is not subject to wind dispersion (sawdust, powders, etc.), track-out, and there is no storm water discharged from within the structure that has come into contact with any materials.high
#D021NuisanceWater Code section 13050, subdivision (m), defines nuisance as anything which meets all of the following requirements: 1. Is injurious to health, or is indecent or offensive to the senses, or an obstruction to the free use of property, so as to interfere with the comfortable enjoyment of life or property. 2. Affects at the same time an entire community or neighborhood, or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal. 3. Occurs during, or as a result of, the treatment or disposal of wastes.high
#D022WasteAs used in the Ocean Plan, waste includes a Dischargers total discharge, of whatever origin (i.e., gross, not net, discharge).high
#D023DischargerAny owner or operator of a boatyard or boat maintenance and repair facility that is located adjacent to a surface water in the San Diego Region.high
#D02440 CFRCode of Federal Regulations, title 40high
#D025AMELAverage Monthly Effluent Limitationhigh
#D026Acute ToxicityThe ability of a substance to cause severe biological harm or death soon after a single exposure or dose. The term acute toxicity also encompasses any poisonous effect resulting from a single short-term exposure to a toxic substance.high
#D027Anti-BackslidingProvisions in the Clean Water Act (CWA) and United States Environmental Protection Agency regulations [CWA part 303 (d) (4); CWA part 402 (c); CFR section 122.44 (1)] that require a reissued permit to be as stringent as the previous permit with some exceptions.high
#D028AntidegradationPolicies which ensure protection of water quality for a particular body where the water quality exceeds levels necessary to protect fish and wildlife propagation and recreation on and in the water. This also includes special protection of waters designated as outstanding natural resource waters. Antidegradation plans are adopted by the State to minimize adverse effects on water.high
#D029Arithmetic Mean ( μ )Also called the average, is the sum of measured values divided by the number of samples. For ambient water concentrations, the arithmetic mean is calculated as follows: Arithmetic mean = μ = Σ x / n where: Σ x is the sum of the measured ambient water concentrations, and n is the number of samples.high
#D030Beneficial UsesThe Beneficial Uses of waters of the State may be protected against quality degradation include, but are not limited to, domestic, municipal, agricultural and industrial supply; power generation; recreation; aesthetic enjoyment; navigation; and preservation and enhancement of fish, wildlife, and other aquatic resources or preserves.high
#D031Best Available Technology Economically Achievable (BAT)The best existing performance of treatment technologies that are economically achievable within an industrial point source category. BAT standards apply to toxic and non-conventional pollutants.high
#D032Best Management Practices (BMPs)Schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of waters of the United States. BMPs also include treatment requirements, operating procedures, and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage.high
#D033Chronic ToxicityChronic toxicity is the measure of the sub-lethal effects of a discharge or ambient water sample (e.g. reduced growth or reproduction.) Certain chronic toxicity tests include an additional measurement of lethality.high
#D034First FlushStorm water runoff that occurs between the time a storm event begins and when a minimum of 0.25 inches of precipitation has been collected in a rain gauge or equivalent measurement device at a location on the site which is representative of precipitation at the site. A storm event is a period of rainfall that is preceded by at least seven days without rainfall.high
#D035Industrial Storm WaterStorm water which has the potential to come in contact with areas used for manufacturing, processing, or raw materials storage at an industrial facility. The term includes, but is not limited to, storm water discharges from industrial plant yards; immediate access roads and rail lines used or traveled by carriers of raw materials; manufactured products, waste material, or by-products used or created by the facility; material handling sites; refuse sites; sites used for the application or disposal of process wastewaters (as defined at 40 CFR section 401); sites used for the storage and maintenance of material handling equipment; sites used for residual treatment, storage, or disposal; shipping and receiving areas; manufacturing buildings; storage areas (including tank farms) for raw materials, and intermediate and finished products; and areas where industrial activity has taken place in the past and significant materials remain and are exposed to storm waterhigh
#D036Qualifying Storm Events (QSEs)A qualifying storm event occurs when sufficient precipitation generates runoff from the Facility that is discharged into the receiving water and is preceded by at least 48 hours with no discharge from any drainage area.high
#D037Average Monthly Effluent Limitation (AMEL)The highest allowable average of daily discharges over a calendar month, calculated as the sum of all daily discharges measured during a calendar month divided by the number of daily discharges measured during that month.high
#D038Average Weekly Effluent Limitation (AWEL)The highest allowable average of daily discharges over a calendar week (Sunday through Saturday), calculated as the sum of all daily discharges measured during a calendar week divided by the number of daily discharges measured during that week.high
#D039Best Conventional Pollutant Control Technology (BCT)The control from existing industrial point sources of conventional pollutants including BOD, TSS, fecal coliform, pH, and oil and grease. The BCT standard is established after considering the 'cost reasonableness' of the relationship between the cost of attaining a reduction in effluent discharge and the benefits that would result, and also the cost effectiveness of additional industrial treatment beyond best practicable treatment control technology (BPT).high
#D040Best practicable treatment control technology (BPT)The average of the best performance by plants within an industrial category or subcategory. BPT standards apply to toxic, conventional, and non-conventional pollutants.high
#D041Best Professional Judgment (BPJ)The method used by permit writers to develop technology-based NPDES permit conditions on a case-by-case basis using all reasonably available and relevant data.high
#D042Bioaccumulative PollutantsThose substances taken up by an organism from its surrounding medium through gill membranes, epithelial tissue, or from food and subsequently concentrated and retained in the body of the organism.high
#D043Biochemical Oxygen Demand (BOD)A measurement of the amount of oxygen utilized by the decomposition of organic material, over a specified time period (usually 5 days) in a wastewater sample; it is used as a measurement of the readily decomposable organic content of a wastewater.high
#D044CarcinogenicPollutants are substances that are known to cause cancer in living organisms.high
#D045Composite SampleSample composed of two or more discrete samples of at least 100 milliliters collected at periodic intervals during the operating hours of a facility over a 24-hour period. The aggregate sample will reflect the average water quality covering the compositing or sample period. For volatile pollutants, aliquots must be combined in the laboratory immediately before analysis. The composite must be flow proportional; either the time interval between each aliquot or the volume of each aliquot must be proportional to either stream flow at the time of sampling or the total stream flow since the collection of the previous aliquot. Aliquots may be collected manually or automatically.high
#D046Conventional PollutantsPollutants typical of municipal sewage, and for which municipal secondary treatment plants are typically designed; defined at 40 CFR section 401.16 as BOD, TSS, fecal coliform bacteria, oil and grease, and pH.high
#D047Daily DischargeDaily Discharge is defined as either: (1) the total mass of the constituent discharged over the calendar day (12:00 am through 11:59 pm) or any 24-hour period that reasonably represents a calendar day for purposes of sampling (as specified in the permit), for a constituent with limitations expressed in units of mass or; (2) the unweighted arithmetic mean measurement of the constituent over the day for a constituent with limitations expressed in other units of measurement (e.g., concentration).high
#D048Detected, but Not Quantified (DNQ)DNQ are those sample results less than the RL, but greater than or equal to the laboratory's MDL. Sample results reported as DNQ are estimated concentrations.high
#D049Discharge Monitoring Report (DMR)Means the USEPA uniform form, including any subsequent additions, revisions, or modifications for the reporting of self-monitoring results by permittees. DMRs must be used by approved states as well as by USEPA. The USEPA will supply DMRs to any approved state upon request.high
#D050Effluent LimitationAny restriction imposed by an Order on quantities, discharge rates, and concentrations of pollutants that are discharged from point sources into waters of the United States, the waters of the contiguous zone, or the ocean.high
#D051Enclosed BaysEnclosed Bays means indentations along the coast that enclose an area of oceanic water within distinct headlands or harbor works. Enclosed bays include all bays where the narrowest distance between the headlands or outermost harbor works is less than 75 percent of the greatest dimension of the enclosed portion of the bay.high
#D052Grab SampleAn individual sample of at least 100 milliliters collected at a randomly selected time over a period not exceeding 15 minutes. The sample is taken from a waste stream on a one-time basis without consideration of the flow rate of the waste stream and without consideration of time of day.high
#D053Maximum Daily Effluent Limitation (MDEL)The highest allowable daily discharge of a pollutant, over a calendar day (or 24-hour period). For pollutants with limitations expressed in units of mass, the daily discharge is calculated as the total mass of the pollutant discharged over the day. For pollutants with limitations expressed in other units of measurement, the daily discharge is calculated as the arithmetic mean measurement of the pollutant over the day.high
#D054Method Detection Limit (MDL)MDL is the minimum concentration of a substance that can be measured and reported with 99 percent confidence that the analyte concentration is greater than zero, as defined in in 40 CFR part 136, Appendix B.high
#D055Minimum Level (ML)ML is the concentration at which the entire analytical system must give a recognizable signal and acceptable calibration point. The ML is the concentration in a sample that is equivalent to the concentration of the lowest calibration standard analyzed by a specific analytical procedure, assuming that all the method specified sample weights, volumes, and processing steps have been followed.high
#D056Not Detected (ND)Sample results which are less than the laboratory's MDL.high
#D057Test of Significant Toxicity (TST)Test of Significant Toxicity (TST) is a statistical approach used to analyze toxicity test data. The TST incorporates a restated null hypothesis, Welch's t-test, and biological effect thresholds for chronic and acute toxicity.high
#D058Water Quality ObjectivesNumerical or narrative limits on constituents or characteristics of water designed to protect designated beneficial uses of the water. [Water Code section 13050(h)].high
#D059Whole Effluent Toxicity (WET)The aggregate toxic effect of an effluent measured directly by a chronic or acute toxicity test.high
#D060AWELAverage Weekly Effluent Limitationhigh
#D061Basin PlanWater Quality Control Plan for the San Diego Basinhigh
#D062BATBest Available Technologyhigh
#D063BMPsBest Management Practiceshigh
#D064CTRCalifornia Toxics Rulehigh
#D065CWAClean Water Acthigh
#D066MDELMaximum Daily Effluent Limitationhigh
#D067MLMinimal Levelhigh
#D068NPDESNational Pollutant Discharge Elimination Systemhigh
#D069USEPAU.S. Environmental Protection Agencyhigh
#D070ChlordaneChlordane shall mean the sum of chlordane-alpha, chlordane-gamma, chlordane-alpha, chlordane-gamma, nonachlor-alpha, nonachlor-gamma, and oxychlordane.high
#D071No Observed Effect Level (NOEL)The NOEL is expressed as the maximum percent effluent or receiving water that causes no observable effect on a test organism, as determined by the result of a critical life stage toxicity test listed in Ocean Plan Appendix III.high
#D072Coefficient of Variation (CV)CV is a measure of the data variability and is calculated as the estimated standard deviation divided by the arithmetic mean of the observed values.high
#D073ToxicityThe aggregate toxic effect of a waste discharge measured directly by a chronic or acute toxicity test. This aggregate effect is frequently referred to as 'whole effluent toxicity'.high
#D074Toxic PollutantPollutants or combinations of pollutants, including disease-causing agents, which after discharge and upon exposure, ingestion, inhalation or assimilation into any organism, either directly from the environment or indirectly by ingestion through food chains, will, on the basis of information available to the Administrator of USEPA, cause death, disease, behavioral abnormalities, cancer, genetic mutations, physiological malfunctions, (including malfunctions in reproduction) or physical deformations, in such organisms or their offspring. Toxic pollutants also include those pollutants listed by the Administrator under CWA section 307(a)(1) or any pollutant listed under section 405 (d) which relates to sludge management.high
#D075CCRCalifornia Code of Regulationshigh
#D076CEQACalifornia Environmental Quality Acthigh
#D077CIWQSCalifornia Integrated Water Quality Systemhigh
#D078NOINotice of Intenthigh
#D079NOTNotice of Terminationhigh
#D080SIPState Implementation Policyhigh
#D081TMDLTotal Maximum Daily Loadhigh
#D082TSSTotal Suspended Solidshigh
#D083SOUSingle Operational Upsethigh
#D084Reporting Level (RL)The RL is the ML (and its associated analytical method) chosen by the Discharger for reporting and compliance determination from the MLs included in this General Order, including an additional factor if applicable as discussed herein.high
#D085DichlorobenzenesThe sum of 1,2- and 1,3-dichlorobenzene.high
#D086EndosulfanThe sum of endosulfan-alpha and -beta and endosulfan sulfate.high
#D087HalomethanesThe sum of bromoform, bromomethane (methyl bromide) and chloromethane (methyl chloride).high
#D088Hexachlorocyclohexane (HCH)The sum of the alpha, beta, gamma (lindane) and delta isomers of HCH.high
#D089TCDD equivalentsTCDD equivalents represent the sum of concentrations of chlorinated dibenzodioxins (2,3,7,8 CDDs) and chlorinated dibenzofurans (2,3,7,8-CDFs) multiplied by their respective toxicity factorshigh
#D090TrashTrash means all improperly discarded solid material from any production, manufacturing, or processing operation including, but not limited to, products, product packaging, or containers constructed of plastic, steel, aluminum, glass, paper, or other synthetic or natural materials.high
#D091Water Quality Control PlanThere are two types of water quality control plans - Basin Plans and Statewide Plans. Regional Boards adopt Basin Plans for each region based upon surface water hydrologic basin boundaries.high
#D092Water Quality StandardsProvisions of State or federal law which consist of a designated use or uses for waters of the United States and water quality criteria for such waters based upon such uses.high
#D093Degrade (Degradation)Degradation shall be determined by comparison of the waste field and reference site(s) for characteristic species diversity, population density, contamination, growth anomalies, debility, or supplanting of normal species by undesirable plant and animal species.high
#D094NECNo Exposure Certificationhigh
#D095PCBPolychlorinated Biphenylshigh
#D096PAHPolynuclear Aromatic Hydrocarbonshigh
#D097NTRNational Toxics Rulehigh
#D098Dilution CreditDilution Credit is the amount of dilution granted to a discharge in the calculation of a water quality-based effluent limitation, based on the allowance of a specified mixing zone. It is calculated from the dilution ratio or determined through conducting a mixing zone study or modeling of the discharge and receiving water.high
#D099Dredged MaterialAny material excavated or dredged from the navigable waters of the United States, including material otherwise referred to as 'spoil'.high
#D100MedianThe middle measurement in a set of data. The median of a set of data is found by first arranging the measurements in order of magnitude (either increasing or decreasing order). If the number of measurements (n) is odd, then the median = X(n+1)/2. If n is even, then the median = (Xn/2 + X(n/2)+1)/2 (i.e., the midpoint between the n/2 and n/2+1).high
#D101Mixing ZoneMixing Zone is a limited volume of receiving water that is allocated for mixing with a wastewater discharge where water quality criteria can be exceeded without causing adverse effects to the overall water body.high
#D102Pollution PreventionPollution Prevention means any action that causes a net reduction in the use or generation of a hazardous substance or other pollutant that is discharged into water and includes, but is not limited to, input change, operational improvement, production process change, and product reformulation (as defined in Water Code section 13263.3).high
#D103Storm WaterStorm water runoff, snowmelt runoff, and storm water surface runoff and drainage.high
#D104Toxicity Identification Evaluation (TIE)A set of procedures to identify the specific chemical(s) responsible for toxicity. These procedures are performed in three phases (characterization, identification, and confirmation) using aquatic organism toxicity tests.high
#D105Toxicity Reduction Evaluation (TRE)TRE is a study conducted in a step-wise process designed to identify the causative agents of effluent or ambient toxicity, isolate the sources of toxicity, evaluate the effectiveness of toxicity control options, and then confirm the reduction in toxicity. The first steps of the TRE consist of the collection of data relevant to the toxicity, including additional toxicity testing, and an evaluation of facility operations and maintenance practices, and best management practices. A TIE may be required as part of the TRE, if appropriate.high
#D106Technology-Based Effluent LimitA permit limit for a pollutant that is based on the capability of a treatment method to reduce the pollutant to a certain concentration.high
#D107Storm EventA storm event is a period of rainfall of at least 0.25 inches of rain that is preceded by at least seven days without rainfall.high