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Document ID us-fwpca-2025-12-18-3 Title Federal Water Pollution Control Act URL https://www.epa.gov/sites/default/files/2021-01/documents/2021_msgp_-_permit_part_8_-_sector_specific_requirements.pdf Jurisdiction /us Subdomain(s) none Language Status completed Analyzed at 2026-05-12 07:26:51.638100+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (99)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001prohibitionoperationalmandatoryTimber Products Discharges Prohibitionwastewater, otherNot covered by this permit: stormwater discharges from areas where there may be contact with the chemical formulations sprayed to provide surface protection. These discharges must be covered by a separate NPDES permit.Applies to Sector A (Timber Products) facilities with chemical formulations sprayed to provide surface protection.high
#Q002operationaloperationalmandatoryTimber Products Good Housekeepingwastewater, otherIn areas where storage, loading and unloading, and material handling occur, perform good housekeeping to minimize the discharge of wood debris, leachate generated from decaying wood materials, and the generation of dust.Areas where storage, loading and unloading, and material handling occur.high
#Q003reportingreportingmandatoryTimber Products SWPPP Drainage Site Mapwastewater, otherDocument in your SWPPP where any of the following may be exposed to precipitation or stormwater: processing areas, treatment chemical storage areas, treated wood and residue storage areas, wet decking areas, dry decking areas, untreated wood and residue storage areas, and treatment equipment storage areas.Applies to Sector A SWPPP documentation.high
#Q004monitoringreportingmandatoryTimber Products Monthly Inspectionswastewater, otherIf your facility performs wood surface protection and preservation activities, inspect processing areas, transport areas, and treated wood storage areas monthly to assess the usefulness of practices to minimize the deposit of treatment chemicals on unprotected soils and in areas that will come in contact with stormwater discharges.If facility performs wood surface protection and preservation activities.high
#Q005prohibitionoperationalmandatoryChemical Products Discharge Prohibitionwastewater, otherThe following are not covered by this permit: non-stormwater discharges containing inks, paints, or substances (hazardous, nonhazardous, etc.) resulting from an onsite spill, including materials collected in drip pans; wash water from material handling and processing areas; and wash water from drum, tank or container rinsing and cleaning.Applies to Sector C facilities.high
#Q006prohibitionoperationalmandatoryAsphalt Paving and Roofing Limits on Coveragewastewater, otherThe following stormwater discharges associated with industrial activity are not authorized by this permit... Stormwater discharges from petroleum refining facilities, including those that manufacture asphalt or asphalt products... Stormwater discharges from oil recycling facilities... Stormwater discharges associated with fats and oils rendering...Applies to Sector D facilities.high
#Q007operationaloperationalmandatoryGlass, Clay, Cement Good Housekeeping Measureswastewater, otherSweep or vacuum paved surfaces of the site that are exposed to stormwater at regular intervals or use other equivalent measures (e.g., wash down the area and collect and/or treat and properly dispose of the washdown water) to minimize the potential discharge of these materials in stormwater... You must also prevent the exposure of fine granular solids (e.g., cement, fly ash, kiln dust) to stormwater, where practicable, by storing these materials in enclosed silos, hoppers, buildings or under other covering.Applies to Sector E facilities.high
#Q008operationaloperationalmandatoryPrimary Metals Cleaning and Maintenancewastewater, otherAs part of your good housekeeping program, you must implement a cleaning and maintenance program for all impervious areas of the facility where particulate matter, dust or debris may accumulate to minimize the discharge of pollutants in stormwater. Stabilize unpaved areas using vegetation or paving where there is vehicle traffic or where material loading and unloading, storage, handling and processing occurs, unless feasible.Applies to Sector F facilities.high
#Q009monitoringreportingmandatoryPrimary Metals Inspection Requirementswastewater, otherAs part of conducting your routine facility inspections at least quarterly (Part 3.1), address all potential sources of pollutants, including (if applicable) air pollution control equipment (e.g., baghouses, electrostatic precipitators, scrubbers, cyclones), for any signs of degradation (e.g., leaks, corrosion, improper operation) that could limit their efficiency and lead to excessive emissions.Quarterly routine facility inspections.high
#Q010prohibitionoperationalmandatoryMetal Mining Discharge Prohibitionswastewater, otherStormwater discharges not authorized by this permit: discharges from active metal mining facilities that are subject to effluent limitation guidelines for the Ore Mining and Dressing Point Source Category (40 CFR Part 440).Applies to Sector G active metal mining facilities.high
#Q011treatmenttreatmentmandatoryErosion and Sediment Control Installationwastewater, otherBy the time construction activities commence, install and make operational downgradient sediment controls, unless this timeframe is infeasible. If infeasible you must install and make such controls operational as soon as practicable or as soon as site conditions permit.Earth-disturbing activities conducted prior to active mining activities.high
#Q012operationaloperationalmandatoryErosion and Sediment Control Maintenancewastewater, otherEnsure that all erosion and sediment controls remain in effective operating condition. Wherever you determine that a stormwater control needs maintenance to continue operating effectively, initiate efforts to fix the problem immediately after its discovery, and complete such work by the end of the next work day.Applies to stormwater controls during earth-disturbing activities prior to active mining.high
#Q013operationaloperationalmandatoryMinimize Soil Exposure Areawastewater, otherYou must minimize the amount of soil exposed during construction activities.Applies during construction of staging areas for structures and access roads.high
#Q014operationaloperationalmandatoryPollution Prevention Requirements for Constructionwastewater, otherMinimize the discharge of pollutants from pollutant sources by: Minimizing exposure; Using secondary containment, spill kits, or other equivalent measures; Locating pollution sources away from surface waters, storm sewer inlets, and drainageways; Cleaning up spills immediately (do not clean by hosing area down).Applies to earth-disturbing activities for construction of staging areas and access roads.high
#Q015monitoringreportingmandatoryEarth-Disturbing Inspection Frequencywastewater, otherAt least once every 7 calendar days, or Once every 14 calendar days and within 24 hours of a storm event of 0.25 inches or greater.Applies to inspections during earth-disturbing activities prior to active mining.high
#Q016prohibitionoperationalmandatoryCoal Mines Non-Stormwater Discharges Prohibitionwastewater, otherNot covered by this permit: discharges from pollutant seeps or underground drainage from inactive coal mines and refuse disposal areas that do not result from precipitation events, and discharges from floor drains in maintenance buildings and other similar drains in mining and preparation plant areas.Applies to Sector H facilities.high
#Q017monitoringoperationalmandatoryCoal Mines Preventive Maintenancewastewater, otherPerform inspections or other equivalent measures of storage tanks and pressure lines of fuels, lubricants, hydraulic fluid, and slurry to prevent leaks due to deterioration or faulty connections.Applies to Sector H facilities.high
#Q018prohibitionoperationalmandatoryOil and Gas Drilling Discharge Guidelineswastewater, otherThis permit does not authorize stormwater discharges from drilling operations that are subject to nationally established effluent limitation guidelines found at 40 CFR Part 435, respectively.Applies to Sector I facilities.high
#Q019prohibitionoperationalmandatoryNon-Metallic Mineral Mining Limitations on Coveragewastewater, otherMost stormwater discharges subject to an existing effluent limitation guideline at 40 CFR Part 436 are not authorized by this permit. The exceptions to this limitation, which are covered by this permit, are mine dewatering discharges composed entirely of stormwater or uncontaminated ground water seepage from construction sand and gravel, industrial sand, and crushed stone mining facilities.Applies to Sector J facilities.high
#Q020operationaloperationalmandatoryNon-Metallic Mineral Employee Trainingwastewater, otherConduct employee training at least annually at active and temporarily inactive sites.Applies to Sector J facilities.high
#Q021prohibitionoperationalmandatoryTSDFs Prohibition of Non-Stormwater Dischargeswastewater, otherThe following are not authorized by this permit: leachate, gas collection condensate, drained free liquids, contaminated ground water, laboratory-derived wastewater, and contact wash water from washing truck and railcar exteriors and surface areas that have come in direct contact with solid waste at the landfill facility.Applies to Sector K facilities.high
#Q022prohibitionoperationalmandatoryLandfills Prohibition of Non-Stormwater Dischargeswastewater, otherThe following discharges are not authorized by this permit: leachate, gas collection condensate, drained free liquids, contaminated ground water, laboratory wastewater, and contact wash water from washing truck and railcar exteriors and surface areas that have come in direct contact with solid waste at the landfill facility.Applies to Sector L facilities.high
#Q023monitoringreportingmandatoryLandfills Active Sites Inspection Frequencywastewater, otherExcept in arid and semi-arid climates, inspect operating landfills, open dumps, and land application sites at least once every 7 days... For stabilized sites and areas where land application has been completed, or where the climate is arid or semi-arid, conduct inspections at least once every month.Applies to active Sector L facilities.high
#Q024operationaloperationalmandatoryAutomobile Salvage Yards Spill and Leak Preventionwastewater, otherDrain vehicles intended to be dismantled of all fluids upon arrival at the site (or as soon thereafter as practicable), or employ some other equivalent means to prevent spills and leaks.Applies to Sector M facilities upon vehicle arrival.high
#Q025prohibitionoperationalmandatoryScrap Recycling Prohibition of Non-Stormwater Dischargeswastewater, otherNon-stormwater discharges from turnings containment areas are not covered by this permit (see also Part 8.N.3.1.3). Discharges from containment areas in the absence of a storm event are prohibited unless covered by a separate NPDES permit.Applies to Sector N facilities.high
#Q026prohibitionoperationalmandatorySteam Electric Generating Prohibition of Dischargeswastewater, otherNon-stormwater discharges subject to effluent limitations guidelines are not covered by this permit.Applies to Sector O facilities.high
#Q027monitoringreportingmandatorySteam Electric Generating Monthly Inspectionswastewater, otherAs part of your inspection, inspect the following areas monthly: coal handling areas, loading or unloading areas, switchyards, fueling areas, bulk storage areas, ash handling areas, areas adjacent to disposal ponds and landfills, maintenance areas, liquid storage tanks, and long term and short term material storage areas.Applies to Sector O facilities.high
#Q028prohibitionoperationalmandatoryLand Transportation Prohibited Dischargeswastewater, otherThis permit does not authorize the discharge of vehicle/equipment/surface wash water, including tank cleaning operations. Such discharges must be authorized under a separate NPDES permit, discharged to a sanitary sewer in accordance with applicable industrial pretreatment requirements, or recycled on-site.Applies to Sector P facilities.high
#Q029prohibitionoperationalmandatoryWater Transportation Prohibition of Non-Stormwater Dischargeswastewater, otherThe following are not authorized by this permit: discharges from vessels including bilge and ballast water, sanitary wastes, pressure wash water, and cooling water. Any discharge of pollutants from a point source to a water of the U.S. requires coverage under an NPDES permit.Applies to Sector Q facilities.high
#Q030prohibitionoperationalmandatoryShip and Boat Building Prohibition of Dischargeswastewater, otherThe following are not authorized by this permit: discharges from vessels including bilge and ballast water, sanitary wastes, pressure wash water, and cooling water.Applies to Sector R facilities.high
#Q031prohibitionoperationalmandatoryAir Transportation Prohibition of Dischargeswastewater, otherThis permit does not authorize the discharge of aircraft, ground vehicle, runway and equipment wash waters; nor the dry weather discharge of deicing chemicals. Such discharges must be covered by separate NPDES permit(s).Applies to Sector S facilities.high
#Q032administrativereportingmandatoryAir Transportation Multiple Operators Coveragewastewater, otherWhere an airport transportation facility has multiple industrial operators that discharge stormwater, each individual operator must obtain coverage under an NPDES stormwater permit.Air transportation facilities with multiple operators.high
#Q033prohibitionoperationalmandatoryAirfield Pavement Deicing Limitationwastewater, otherFor both existing and new 'primary airports' (as defined at 40 CFR 449.2) with 1,000 or more annual non-propeller aircraft departures that discharge stormwater from airfield pavement deicing activities, there shall be no discharge of airfield pavement deicers containing urea. To comply with this limitation, such airports must do one of the following: (1) certify annually on the annual report that you do not use pavement deicers containing urea, or (2) meet the effluent limitation in Table 8.S-3.Primary airports with 1,000 or more annual non-propeller aircraft departures discharging stormwater from airfield pavement deicing activities.high
#Q034prohibitionoperationalmandatoryTreatment Works Prohibition of Dischargeswastewater, otherSanitary and industrial wastewater and equipment and vehicle wash water are not authorized by this permit.Applies to Sector T facilities.high
#Q035prohibitionoperationalmandatoryFood and Kindred Products Prohibitionswastewater, otherThe following discharges are not authorized by this permit: discharges containing boiler blowdown, cooling tower overflow and blowdown, ammonia refrigeration purging, and vehicle washing and clean-out operations.Applies to Sector U facilities.high
#Q036prohibitionoperationalmandatoryTextile Mills Prohibition of Non-Stormwater Dischargeswastewater, otherThe following discharges are not authorized by this permit: discharges of wastewater (e.g., wastewater resulting from wet processing or from any processes relating to the production process), reused or recycled water, and waters used in cooling towers. If you have these types of discharges from your facility, you must cover them under a separate NPDES permit.Applies to Sector V facilities.high
#Q037reportingreportingmandatoryFurniture and Fixtures Drainage Site Mapwastewater, otherDocument in your SWPPP where any of the following may be exposed to precipitation or stormwater: material storage (including tanks or other vessels used for liquid or waste storage) areas; outdoor material processing areas; areas where wastes are treated, stored, or disposed of; access roads; and rail spurs.Applies to Sector W facilities.high
#Q038operationaloperationalmandatoryPrinting and Publishing Material Storage Housekeepingwastewater, otherPlainly label and store all containerized materials (e.g., skids, pallets, solvents, bulk inks, hazardous waste, empty drums, portable and mobile containers of plant debris, wood crates, steel racks, and fuel oil) in a protected area, away from drains.Applies to Sector X facilities.high
#Q039operationaloperationalmandatoryRubber and Plastics Zinc Controlwastewater, otherMinimize the discharge of zinc in your stormwater discharges.Applies to Sector Y Rubber Manufacturers.high
#Q040operationaloperationalmandatoryLeather Tanning Material Storage Labelingwastewater, otherLabel storage containers of all materials (e.g., specific chemicals, hazardous materials, spent solvents, waste materials) and minimize contact of such materials with stormwater.Applies to Sector Z material storage areas.high
#Q041operationaloperationalmandatoryFabricated Metals Storage Areas Cleanup Impedimentswastewater, otherKeep these areas free of conditions that could cause, or impede appropriate and timely response to, spills or leakage of materials through implementation of control measures such as the following, where determined to be feasible (list not exclusive): maintaining storage areas so that there is easy access in the event of a spill, and labeling stored materials to aid in identifying spill contents.Applies to Sector AA storage areas for raw metal.high
#Q042administrativereportingmandatoryDesignated Stormwater Discharges Permissionwastewater, otherBecause this sector is primarily intended for use by discharges designated by the Director as needing a stormwater permit (which is an atypical circumstance), and your facility may or may not normally be discharging stormwater associated with industrial activity, you must obtain the Director's written permission to use this permit prior to submitting an NOI.Applies to Sector AD designated facilities.high
#Q043administrativeoperationalmandatoryNPDES Coverage RequirementwastewaterThis Order requires persons discharging, or proposing to discharge, extracted groundwater to waters of the U.S. in the San Diego Region as described in section I.A of this Order, excluding those persons that meet the exception criteria identified in section I.B of this Order, to obtain NPDES regulatory coverage through enrollment in this General NPDES Order.Applicable to all persons discharging or proposing to discharge extracted groundwater to waters of the U.S. in the San Diego Region.high
#Q044prohibitionoperationalmandatoryDischarge Compliance with DescriptionwastewaterThe discharge of extracted groundwater at a location, for a purpose or duration, or in a manner, different from that described in section I of this Order, the NOI, or the NOA is prohibited.All authorized groundwater extraction discharges.high
#Q045prohibitionoperationalmandatoryFlowrate Limitation ProhibitionwastewaterThe discharge of extracted groundwater in excess of the flowrate specified in an NOA is prohibited, unless the Discharger obtains a revised discharge NOA authorizing an increased flowrate that is issued pursuant to section II.E above.All authorized groundwater extraction discharges.high
#Q046prohibitionoperationalmandatoryAddition of Pollutants ProhibitionwastewaterThe addition of pollutants to extracted groundwater to be discharged to surface waters within the San Diego Region is prohibited. The only exception to this prohibition is that chemicals may be added to extracted groundwater to control biofouling in treatment systems and enhance treatment, provided that the extracted groundwater discharged meets the effluent limitations for such chemicals and toxicity established by this Order and any additional requirements specified in the discharge NOA.All authorized groundwater extraction discharges.high
#Q047administrativereportingmandatoryNOI Application DeadlinewastewaterTo obtain coverage under this Order, a Discharger must submit a complete NOI application package to the San Diego Water Board office at least 60 days before proposed commencement of the discharge.Prior to commencement of groundwater extraction discharge.high
#Q048designtreatmentmandatoryTreatment Facility PE CertificationwastewaterIf the groundwater extraction discharge will need treatment to comply with the effluent limitations, then the NOI must include a report describing and certifying the adequacy of each component of the treatment facilities prepared by a California licensed professional engineer, competent and proficient in the field pertinent to the report and qualified to prepare such report.If treatment is required to comply with effluent limitations.high
#Q049administrativereportingmandatoryMS4 Operator NotificationwastewaterDischargers proposing to discharge extracted groundwater to an MS4 shall include with their NOI, documentation demonstrating that they have notified the MS4 operator of the point of proposed discharge into the MS4.When proposing discharge into a municipal separate storm sewer system.high
#Q050administrativereportingmandatoryOwnership Transfer Notification RequirementwastewaterIn the event of any planned change in ownership of land or waste discharge facilities presently owned by the Discharger, the Discharger must notify the new succeeding owner, by letter 120 days prior to property transfer, of the obligation to apply for coverage under this Order for the extracted groundwater discharge. A copy of this notification shall be promptly submitted to the San Diego Water Board.Planned change in ownership of land or waste discharge facilities.high
#Q051operationaloperationalmandatoryOnsite Permit AvailabilitywastewaterA copy of this Order and the NOA shall be maintained onsite at the groundwater extraction facility, and shall be available to operating personnel, at all times.All authorized groundwater extraction facilities.high
#Q052corrective_actiontreatmentmandatoryChronic Toxicity TRE Triggerwastewater, aquatic lifeIf the discharge causes or contributes to chronic toxicity in the effluent, a Toxicity Reduction Evaluation (TRE) shall be required as defined in section IV of the MRP. The San Diego Water Board shall require the Discharger to conduct a TRE if repeated tests reveal toxicity as a result of waste discharge under this Order.If discharge causes or contributes to chronic toxicity.high
#Q053operationaloperationalmandatoryRemoved Solids DisposalwastewaterThe 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.Management of solids removed from groundwater treatment.high
#Q054monitoringoperationalmandatoryFlow Device Calibration FrequencywastewaterAll monitoring instruments and devices used by the Discharger to fulfill the prescribed monitoring program shall be properly maintained and calibrated as necessary to ensure their continued accuracy. All flow measurement devices shall be calibrated at least once per year to ensure continued accuracy of the devices.Maintenance of monitoring equipment.high
#Q055reportingoperationalmandatoryDisposal Alternative Analysis RequirementwastewaterAn evaluation of a range of alternative disposal methods to the proposed extracted groundwater discharge to surface waters including reasons and conclusions as to why it is technically or economically infeasible to implement these alternatives.Must be included in the Notice of Intent (NOI) application package.high
#Q056reportingreportingmandatoryProject Map Content RequirementswastewaterA scaled project map(s) that identifies the following: a. The essential features of the groundwater control and extraction system including the extent of any drawdown; b. All known groundwater contamination sites and plumes within 0.5 miles of each groundwater extraction point to be used in the groundwater control system; c. The receiving waters for each proposed groundwater extraction discharge; and d. If discharge of extracted groundwater into a MS4 is proposed, the MS4 that will receive the groundwater extraction discharge.Required element for a complete NOI application.high
#Q057administrativereportingmandatoryElectronic Submission and Storage FormatwastewaterPlease convert all submissions with attachments to a searchable Portable Document Format (PDF) and submit the documents on a compact disk.Applies to all application submissions to the San Diego Water Board.high
#Q058administrativereportingmandatoryNOA Modification Request ProcedurewastewaterThe request for NOA modification shall include 'Request for NOA Amendment' in the subject line; the Waste Discharge Identification Number (WDID) assigned to the Discharger in the original NOA; the name and address of the Discharger; all of the information the Discharger believes is necessary for the San Diego Water Board to evaluate the request for modification; and shall be signed and certified by the Discharger.When the Discharger seeks modification of an existing Notice of Applicability.high
#Q059administrativereportingmandatoryNotice of Termination RequirementswastewaterTo terminate coverage under this Order, the Discharger must submit a complete and accurate Notice of Termination (NOT), to the San Diego Water Board... The NOT should include 'Notice of Termination' in the subject line, the Waste Discharge Identification Number (WDID) assigned to the project by the San Diego Water Board in the NOA, and the name and address of the Discharger. The NOT must be signed and dated.When the Discharger has ceased the discharge of extracted groundwater.high
#Q060administrativereportingmandatorySuccessor Owner NOI ObligationwastewaterThe new succeeding owner must submit a new NOI application package for coverage under this Order prior to discharging extracted groundwater.Upon change in ownership of land or waste discharge facilities.high
#Q061prohibitionoperationalmandatoryASBS Discharge Prohibitionwastewater, aquatic lifeThe discharge of extracted groundwater to areas designated by the State Water Board as Areas of Special Biological Significance (ASBS) is prohibited except as provided in an exception issued by State Water Board pursuant to provisions of the Ocean Plan.Applies to all groundwater extraction discharges.high
#Q062prohibitionoperationalmandatorySan Diego Bay Permanent Discharge ProhibitionwastewaterPermanent groundwater extraction discharges to San Diego Bay from a groundwater control system are prohibited.Except for One America Plaza in the City of San Diego.high
#Q063administrativereportingmandatoryStandard Provisions Records RetentionwastewaterThe Discharger shall retain records of all monitoring information, including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this Order, and records of all data used to complete the application for this Order, for a period of at least three (3) years from the date of the sample, measurement, report or application.Standard recordkeeping for all permittees.high
#Q064reportingreportingmandatoryMass Emission Rate Reporting RequirementwastewaterThe Discharger shall calculate and report the mass emission rate (MER) of the constituent for each sample taken. The MER shall be calculated in accordance with the effluent limitations specified in section V of this Order.Part of the effluent sampling and analysis program.high
#Q065reportingreportingmandatoryAnnual Summary of Monitoring DatawastewaterIf the duration of discharge is six months or more, the Discharger shall submit a summary of monitoring data for the previous year to the San Diego Water Board prior to March 1st of each year. The annual report shall contain both tabular and graphical summaries of the previous year's data.Discharge duration of six months or more.high
#Q066prohibitionoperationalmandatoryTMDL Discharge Prohibitionswastewater, aquatic lifePursuant to the TMDL wasteload allocations (WLAs), summarized in Attachment B of this Order, discharges including copper to the Shelter Island Yacht Basin (SIYB) watershed are prohibited; discharges including diazinon to Chollas Creek, are prohibited; the discharge of total coliform, fecal coliform, and enterococci bacteria to the water quality segments identified in sections V and VI of Attachment B are prohibited; the discharge of total nitrogen and total phosphorus to Rainbow Creek is prohibited; the discharge of dissolved copper, lead, and zinc to Chollas Creek, above the effluent limitations specified in Table 4, is prohibited; and the discharge of sediment to Los Penasquitos Lagoon is prohibited.Applicable to specific watersheds and receiving waters subject to TMDLs.high
#Q067administrativereportingmandatoryApplication Fee RequirementwastewaterPayment of the application fee, equal to the first annual fee, made payable to "SWRCB." In accordance with California Code of Regulations (CCR) title 23, division 3, chapter 9, Waste Discharge Reports and Requirements, article 1, Fees.Required element for a complete NOI application.high
#Q068administrativereportingmandatoryExisting Discharger Re-enrollment DeadlinewastewaterExisting Dischargers shall submit a complete NOI package as described in section II.A of this Order (excluding the fee) no later than March 24, 2016 or else risk losing permit coverage.Existing Dischargers subject to San Diego Water Board Order Nos. R9-2007-0034 or R9-2008-0002.high
#Q069operationaloperationalmandatoryLaboratory Calibration InstructionswastewaterDischargers are to instruct laboratories to establish calibration standards so that the ML value (or its equivalent if there is differential treatment of samples relative to calibration standards) is the lowest calibration standard.Analytical reporting protocols.high
#Q070corrective_actiontreatmentmandatoryTRE Work Plan Submittal Timelinewastewater, aquatic lifeThe Discharger shall prepare and submit a TRE Work plan to the San Diego Water Board no later than 30 days from the time the Discharger becomes aware that a TRE work plan is required by section IV.A or IV.B of this Order.Triggered if accelerated toxicity tests result in failure.high
#Q071reportingreportingmandatoryToxicity Limit Exceedance Notificationwastewater, aquatic lifeThe Discharger shall notify the San Diego Water Board in writing within 14 days of receipt of any test result with an exceedance of the toxicity limit.Upon receipt of any toxicity test result exceeding limits.high
#Q072corrective_actionoperationalmandatoryDuty to Mitigate NoncompliancewastewaterThe Discharger shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in violation of this Order that has a reasonable likelihood of adversely affecting human health or the environment.Standard Provision for permit compliance.high
#Q073administrativereportingmandatoryNOI Signatory and Certification RequirementwastewaterA Notice of Intent (NOI) Form (see Attachment C of this Order), completed in accordance with the form instructions... must be signed and certified in accordance with Signatory and Certification Requirements contained in section V.B of Attachment D Standard Provisions.Required element for a complete NOI application.high
#Q074prohibitionoperationalmandatoryCompliance with Basin and Ocean Plan ProhibitionswastewaterThe discharge of extracted groundwater must comply with Discharge Prohibitions contained in the Water Quality Control Plan for Ocean Waters of California, California Ocean Plan (Ocean Plan) and chapter 4 of the Water Quality Control Plan for the San Diego Basin (Basin Plan).All authorized groundwater extraction discharges.high
#Q075administrativeoperationalmandatoryGeneral Legal CompliancewastewaterThe Discharger shall comply with all applicable federal, state, and local laws and regulations for handling, transport, treatment, or disposal of waste.San Diego Water Board Standard Provision.high
#Q076administrativeoperationalmandatoryGeneral Duty to ComplywastewaterThe Discharger must comply with all of the conditions of this Order. Any noncompliance constitutes a violation of the Clean Water Act (CWA) and the California Water Code (CWC) and is grounds for enforcement action.All authorized dischargers.high
#Q077operationaloperationalmandatoryProper Operation and MaintenancewastewaterThe Discharger shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the Discharger to achieve compliance with the conditions of this Order.Standard Provision for all facilities.high
#Q078administrativereportingmandatoryInspection and Entry RightswastewaterThe Discharger shall allow the San Diego Water Board, State Water Board, U.S. EPA, and/or their authorized representatives... to (1) Enter upon the Discharger's premises... (2) Have access to and copy... records... (3) Inspect and photograph... (4) Sample or monitor...Upon the presentation of credentials.high
#Q079reportingreportingmandatory24-Hour Noncompliance ReportingwastewaterThe 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...For incidents endangering health or environment.high
#Q080administrativereportingmandatorySupplemental Information AuthoritywastewaterUpon request, the Discharger must submit any additional supplemental information that the San Diego Water Board deems necessary to determine whether the discharge meets the criteria for coverage under this Order, or to prescribe an appropriate MRP, or both.Upon Board request during application process.high
#Q081reportingreportingmandatoryPlanned Physical Alterations NoticewastewaterThe Discharger shall give notice to the San Diego Water Board as soon as possible of any planned physical alterations or additions to the permitted facility.When alteration meets criteria for a new source or changes pollutant nature/quantity.high
#Q082monitoringreportingmandatoryMonitoring Method Detection Limit ReportingwastewaterThe Discharger must report with each sample result the acceptable reported ML and the laboratory's current Method Detection Limit (MDL).All monitoring reports.high
#Q083treatmenttreatmentmandatoryOcean Discharge Removal EfficiencywastewaterThe Discharger shall remove 75 percent of the suspended solids as a monthly average unless the average monthly influent is 80 mg/L or less, then the effluent limit shall be 60 mg/L.Applies to discharges to the surf zone of the Pacific Ocean.high
#Q084reportingreportingmandatorySMR Noncompliance DocumentationwastewaterThe SMRs shall clearly identify any violations of this Order and its cause; the period of noncompliance, including exact dates and times; and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence...Self-Monitoring Report submittals.high
#Q085operationaloperationalmandatoryCompliance Maintenance During NOA ModificationwastewaterThe submittal of a request by the Discharger for modification of the NOA does not stay any condition of this Order and the Discharger shall continue to comply with this Order and the NOA until further notice from the San Diego Water Board.During modification request period.high
#Q086administrativereportingmandatoryAdministrative Duty to Provide InformationwastewaterThe Discharger shall furnish to the San Diego Water Board, State Water Board, or U.S. EPA within a reasonable time, any information which the San Diego Water Board, State Water Board, or U.S. EPA may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this Order or to determine compliance.Upon reasonable request by authorities.high
#Q087reportingreportingmandatoryNotice of Discharge Commencement NotificationwastewaterNew Dischargers must notify the San Diego Water Board of the time and date for commencement of the new groundwater extraction discharge(s) authorized under the NOA at least seven days prior to initiating a discharge.Prior to initiating a new authorized dischargehigh
#Q088reportingreportingmandatoryAnalytical Determination Reporting ProtocolswastewaterThe Discharger must also report results of analytical determinations for the presence of chemical constituents in a sample using the following reporting protocols: a. Sample results greater than or equal to the reported ML must be reported 'as measured by the laboratory (i.e., the measured chemical concentration in the sample). b. Sample results less than the reported ML, but greater than or equal to the laboratory's MDL, must be reported as 'Detected, but Not Quantified', or DNQ. ... c. Sample results less than the laboratory's MDL shall be reported as 'Not Detected,' or ND.All monitoring and compliance reportshigh
#Q089reportingreportingmandatorySMR Format and Cover Letter RequirementwastewaterAll reported data shall be arranged in a tabular format. The data shall be summarized to clearly illustrate whether the discharge is in compliance with the effluent limitations of this Order. ... The Discharger shall attach a cover letter to the SMR. The information contained in the cover letter shall clearly identify violations of the Order.Submittal of Self-Monitoring Reports (SMRs)high
#Q090reportingreportingmandatoryChemical Addition DisclosurewastewaterIn the NOI, the Discharger must notify the San Diego Water Board of the types and amounts of any such chemicals proposed to be added to the extracted groundwater.When proposing to add chemicals to control biofouling or enhance treatment.high
#Q091administrativereportingmandatoryMonitoring Location Change NoticewastewaterMonitoring locations shall not be changed without notification to and the approval of the San Diego Water Board.Prior to changing established sampling points.high
#Q092administrativereportingmandatorySMR Resource MaintenancewastewaterThe Discharger shall maintain sufficient staffing and resources to ensure SMR submittals are complete and timely.Ongoing administrative requirement for reporting compliance.high
#Q093reportingreportingmandatoryToxicity Testing SOP Submissionwastewater, aquatic lifeStandard Operating Procedures used by the toxicity testing laboratory to identify and report valid, invalid, anomalous, or inconclusive effluent (and receiving water) toxicity test measurement results from the TST statistical approach, including those that incorporate a consideration of concentration-response patterns, must be submitted to the San Diego Water BoardAll laboratories performing toxicity tests for the discharger.high
#Q094reportingreportingmandatoryAnticipated Bypass NotificationwastewaterIf the Discharger knows in advance of the need for a bypass, it shall submit a notice, if possible at least 10 days before the date of the bypass.Foreseen maintenance requiring waste stream diversion.high
#Q095administrativereportingmandatoryCompliance Statistics ProtocolwastewaterWhen determining compliance with an AMEL or MDEL for priority pollutants and more than one sample result is available, the Discharger shall compute the arithmetic mean unless the data set contains one or more reported determinations of 'Detected, but Not Quantified' (DNQ) or 'Not Detected' (ND). In those cases, the Discharger shall compute the median in place of the arithmetic meanWhen multiple sample data points exist for a priority pollutant within a reporting period.high
#Q096operationaloperationalmandatoryAmbient Turbidity CompliancewastewaterIn addition to an instantaneous maximum of 20 NTU, the discharge shall not exceed the ambient turbidity of the surface water at any time.Applicable to freshwater inland surface water discharges.high
#Q097reportingreportingmandatoryAnticipated Noncompliance NoticewastewaterThe Discharger shall give advance notice to the San Diego Water Board or State Water Board of any planned changes in the permitted facility or activity that may result in noncompliance with this Order's requirements.Prior to any physical or operational change affecting compliance.high
#Q098reportingreportingmandatoryCorrection of Information OmissionswastewaterWhen the Discharger becomes aware that it failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or in any report to the San Diego Water Board, State Water Board, or U.S. EPA, the Discharger shall promptly submit such facts or information.Upon discovery of reporting or application errors.high
#Q099administrativereportingmandatoryEnrollment Conversion DeadlinewastewaterDischargers enrolled under Order Nos. R9-2007-0034 and R9-2008-0002 must obtain coverage under this new Order within 365 days after the effective date of this Order to continue their discharge under WDRs in this Order.Existing dischargers enrolled under the previous San Diego Region general dewatering permits.high

P Quantitative Requirements (75)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001chemicaloperationalmandatoryChemical Oxygen Demand (COD)wastewaterrequirement120.0 mg/LBenchmark Monitoring Concentration for Subsector A1. General Sawmills and Planing MillsApplies to primary industrial activity and co-located activities for Sector A1high
#P002physicaloperationalmandatoryTotal Suspended Solids (TSS)wastewaterrequirement100 mg/LBenchmark Monitoring Concentration for Subsector A1. General Sawmills and Planing MillsApplies to primary industrial activity and co-located activities for Sector A1high
#P003chemicaloperationalmandatoryTotal Recoverable Zinc (saltwater)wastewaterrequirement90 µg/LBenchmark Monitoring Concentration for Subsector A1. General Sawmills and Planing MillsSaltwater benchmark values apply to stormwater discharges into saline watershigh
#P004chemicaloperationalmandatoryTotal Recoverable Arsenic (freshwater)wastewaterrequirement150 µg/LBenchmark Monitoring Concentration for Subsector A2. Wood PreservingApplies to primary industrial activity and co-located activitieshigh
#P005chemicaloperationalmandatoryTotal Recoverable Arsenic (saltwater)wastewaterrequirement69 µg/LBenchmark Monitoring Concentration for Subsector A2. Wood PreservingSaltwater benchmark values apply to stormwater discharges into saline watershigh
#P006physicaloperationalmandatorypHwastewaterrequirement6.0 - 9.0 s.u.Effluent Limitation for discharges resulting from spray down or intentional wetting of logs at wet deck storage areasMonitor annuallyhigh
#P007chemicaloperationalmandatoryTotal Phosphorus (as P)wastewaterrequirement105.0 mg/LEffluent Limitation: Runoff from phosphate fertilizer manufacturing facilities that comes into contact with raw materials, finished product, by-products or waste productsDaily maximum. Monitor annually.high
#P008chemicaloperationalmandatoryTotal Phosphorus (as P)wastewaterrequirement35 mg/LEffluent Limitation: Runoff from phosphate fertilizer manufacturing facilities that comes into contact with raw materials, finished product, by-products or waste products30-day avg. Monitor annually.high
#P009chemicaloperationalmandatoryFluoridewastewaterrequirement75.0 mg/LEffluent Limitation: Runoff from phosphate fertilizer manufacturing facilitiesDaily maximum. Monitor annually.high
#P010physicaloperationalmandatoryTotal Suspended Solids (TSS)wastewaterrequirement23.0 mg/LEffluent Limitation: Discharges from asphalt emulsion facilitiesDaily maximum. Monitor annually.high
#P011physicaloperationalmandatoryTotal Suspended Solids (TSS)wastewaterrequirement15.0 mg/LEffluent Limitation: Discharges from asphalt emulsion facilities30-day avg. Monitor annually.high
#P012chemicaloperationalmandatoryOil and Greasewastewaterrequirement15.0 mg/LEffluent Limitation: Discharges from asphalt emulsion facilitiesDaily maximum. Monitor annually.high
#P013physicaloperationalmandatoryTotal Suspended Solids (TSS)wastewaterrequirement50 mg/LEffluent Limitation: Discharges from material storage piles at cement manufacturing facilitiesDaily maximum. Monitor annually. Untreated overflow from 10-yr 24-hr rainfall event not subject to this limitation.high
#P014physicaloperationalmandatoryTSSwastewaterrequirement50 mg/lEffluent Limitation: Discharges from coal storage piles at Steam Electric Generating FacilitiesMonitor annuallyhigh
#P015chemicaloperationalmandatoryAmmonia as Nitrogenwastewaterrequirement14.7 mg/LEffluent Limitation: Runoff containing urea from airfield pavement deicing at existing and new primary airports with 1,000 or more annual non-propeller aircraft departuresDaily maximumhigh
#P016chemicaltreatmentmandatoryCadmium, Total Recoverable (Hardness < 200)wastewater, aquatic liferequirementAMEL 3.5; MDEL 7.0 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersHardness up to 200 mg/Lhigh
#P017chemicaltreatmentmandatoryCopper, Total Recoverable (Hardness < 200)wastewater, aquatic liferequirementAMEL 14; MDEL 28 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersHardness up to 200 mg/Lhigh
#P018physicaltreatmentmandatorySettleable Solidswastewater, drinking waterrequirementAMEL 0.1; Instantaneous Maximum 0.2 ml/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseApplicable to All Dischargershigh
#P019physicaltreatmentmandatoryTotal Suspended Solids (TSS)wastewater, drinking waterrequirementAMEL 30; Instantaneous Maximum 50 mg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseApplicable to All Dischargershigh
#P020physicalaestheticmandatoryTurbiditywastewater, drinking waterrequirement20 NTUEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseInstantaneous Maximum. Applicable to All Dischargers.high
#P021physicaltreatmentmandatorypHwastewater, drinking waterrequirement6.5 - 8.5 s.u.Effluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseInstantaneous Maximum. Applicable to All Dischargers.high
#P022unknowntreatmentmandatoryChronic Toxicitywastewater, aquatic liferequirementPass Pass/FailEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseMaximum Daily Effluent Limitation (MDEL). Applicable to All Dischargers.high
#P023chemicalaestheticmandatoryGrease and Oilwastewater, recreational waterrequirementAMEL 25; AWEL 40; Instantaneous Maximum 75 mg/LEffluent Limitations for Discharges to the Surf Zone of the Pacific OceanApplicable to All Dischargershigh
#P024physicaltreatmentmandatorySuspended Solidswastewater, recreational waterrequirement60 mg/LEffluent Limitations for Discharges to the Surf Zone of the Pacific OceanAMEL. Applicable to All Dischargers.high
#P025chemicalhealthmandatoryDissolved Oxygen (Inland Surface Waters)aquatic liferequirement>= 5.0 mg/LReceiving Water Limitations for Inland Surface WatersNot at any time. The annual mean dissolved oxygen concentration shall not be less than 7 mg/L more than 10% of the time.high
#P026chemicaltreatmentmandatoryLead, Total Recoverable (Hardness < 200 mg/L)aquatic liferequirementAMEL 6.3; MDEL 13 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersHardness up to 200 mg/Lhigh
#P027chemicaltreatmentmandatoryNickel, Total Recoverable (Hardness < 200 mg/L)aquatic liferequirementAMEL 77; MDEL 150 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersHardness up to 200 mg/Lhigh
#P028chemicaltreatmentmandatorySilver, Total Recoverable (Hardness < 200 mg/L)aquatic liferequirementAMEL 6.7; MDEL 13 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersHardness up to 200 mg/Lhigh
#P029chemicaltreatmentmandatoryZinc, Total Recoverable (Hardness < 200 mg/L)aquatic liferequirementAMEL 110; MDEL 210 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersHardness up to 200 mg/Lhigh
#P030chemicaltreatmentmandatoryCopper, Total Recoverable (Chollas Creek, Hardness < 200 mg/L)aquatic liferequirementAMEL 11.6; MDEL 23.2 µg/LHardness-Dependent Metal Limitations for Chollas CreekHardness up to 200 mg/Lhigh
#P031chemicalaestheticmandatoryIron, Total Recoverabledrinking waterrequirement0.3 mg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseInstantaneous Maximumhigh
#P032chemicalaestheticmandatoryManganese, Total Recoverabledrinking waterrequirement0.05 mg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseInstantaneous Maximumhigh
#P033microbiologicalhealthmandatoryTotal Coliform (Bays and Estuaries)recreational water, otherrequirement30 day geometric mean 1,000; Single Sample Maximum 10,000 Organisms/ 100 mLBacteria Effluent Limitations for Discharges to Bays and Estuaries not Including Buena Vista LagoonApplicable to all discharges to bays and estuaries except Buena Vista Lagoonhigh
#P034chemicalhealthmandatoryAntimony, Total Recoverabledrinking waterrequirementAMEL 14; MDEL 28 µg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseBased on Results of Reasonable Potential Analysishigh
#P035chemicalhealthmandatoryArsenic, Total Recoverabledrinking waterrequirementAMEL 120; MDEL 250 µg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseBased on Results of Reasonable Potential Analysishigh
#P036chemicaltreatmentmandatoryLead, Total Recoverable (Chollas Creek)aquatic liferequirementAMEL 3.9; MDEL 7.8 µg/LHardness-Dependent Metal Limitations for Chollas CreekHardness Up to 200 mg/Lhigh
#P037chemicaltreatmentmandatoryZinc, Total Recoverable (Chollas Creek)aquatic liferequirementAMEL 94.4; MDEL 189.4 µg/LHardness-Dependent Metal Limitations for Chollas CreekHardness Up to 200 mg/Lhigh
#P038chemicalaestheticmandatoryHydrogen Sulfidedrinking waterrequirementAMEL 2.0; MDEL 4.0; Instantaneous Maximum 10 µg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseBased on Results of Reasonable Potential Analysishigh
#P039chemicalhealthmandatoryTotal Nitrogendrinking waterrequirementAMEL 1.0; Instantaneous Maximum 2.0 mg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseBased on Results of Reasonable Potential Analysishigh
#P040microbiologicalhealthmandatoryFecal Coliform (Bays and Estuaries)recreational waterrequirement30 day geometric mean 200; Single Sample Maximum 400 Organisms/ 100 mLBacteria Effluent Limitations for Discharges to Bays and Estuaries not Including Buena Vista LagoonApplicable to all discharges to bays and estuaries except Buena Vista Lagoonhigh
#P041microbiologicalhealthmandatoryEnterococcus (Bays and Estuaries)recreational waterrequirement30 day geometric mean 35; Single Sample Maximum 104 Organisms/ 100 mLBacteria Effluent Limitations for Discharges to Bays and Estuaries not Including Buena Vista LagoonApplicable to all discharges to bays and estuaries except Buena Vista Lagoonhigh
#P042chemicalhealthmandatoryUn-ionized ammonia (NH3)aquatic liferequirement0.025 mg/l (as N)Receiving Water Limitations for Inland Surface WatersThe discharge of wastes shall not cause concentrations to exceed this level.high
#P043chemicaltreatmentmandatoryCadmium, Total Recoverable (Hardness 200 - 300 mg/L)wastewater, aquatic liferequirementAMEL 4.8; MDEL 9.6 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness between 200 and 300 mg/Lhigh
#P044chemicaltreatmentmandatoryCadmium, Total Recoverable (Hardness 300 mg/L and above)wastewater, aquatic liferequirementAMEL 6.0; MDEL 12 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness 300 mg/L and abovehigh
#P045chemicaltreatmentmandatoryCopper, Total Recoverable (Hardness 200 - 300 mg/L)wastewater, aquatic liferequirementAMEL 20; MDEL 39 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness between 200 and 300 mg/Lhigh
#P046chemicaltreatmentmandatoryTotal Phosphoruswastewater, drinking waterrequirementAMEL 0.1; Instantaneous Maximum 0.2 mg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseBased on Results of Reasonable Potential Analysishigh
#P047physicaltreatmentmandatorySettleable Solids (Bays and Estuaries)wastewater, otherrequirementAMEL 1.0; AWEL 1.5; Instantaneous Maximum 3.0 ml/LEffluent Limitations for Discharges to Bays and Estuaries, including San Diego Bay but not including Buena Vista LagoonApplicable to All Dischargershigh
#P048physicalaestheticmandatoryTurbidity (Bays and Estuaries)wastewater, otherrequirementAMEL 75; AWEL 100; Instantaneous Maximum 225 NTUEffluent Limitations for Discharges to Bays and Estuaries, including San Diego Bay but not including Buena Vista LagoonApplicable to All Dischargershigh
#P049microbiologicalhealthmandatoryShellfish Harvesting Total Coliform densitydrinking water, otherrequirementmonthly median <= 70; <= 10 percent of samples > 230 /100 mLEffluent Limitations - Surf Zone of the Pacific OceanAt all areas where shellfish may be harvested for human consumptionhigh
#P050physicaltreatmentmandatorypH (Bays and Harbors)wastewater, aquatic liferequirement6.0 - 9.0 s.u.Effluent Limitations for Discharges to Bays and Estuaries, including San Diego Bay but not including Buena Vista LagoonWithin these limits at all times for all bays and harborshigh
#P051chemicalhealthmandatoryBenzene (MUN Freshwater)drinking water, wastewaterrequirementAMEL 1.2; MDEL 2.4 μg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseBased on Results of Reasonable Potential Analysishigh
#P052chemicalhealthmandatoryVinyl Chloride (MUN Freshwater)drinking water, wastewaterrequirementAMEL 2.0; MDEL 4.0 μg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseBased on Results of Reasonable Potential Analysishigh
#P053chemicalhealthmandatoryMercury, Total Recoverable (MUN Freshwater)drinking water, wastewaterrequirementAMEL 0.05; MDEL 0.1 μg/LEffluent Limitations for Discharges to Freshwater Inland Surface Waters with MUN Beneficial UseBased on Results of Reasonable Potential Analysishigh
#P054chemicalhealthmandatoryAmmonia, Total (Bays and Estuaries)aquatic life, wastewaterrequirementMDEL 2,400; Instantaneous Maximum 6,000; 6-Month Median 600 μg/LEffluent Limitations for Discharges to Bays and EstuariesBased on Results of Reasonable Potential Analysishigh
#P055chemicalhealthmandatoryCyanide, Total (Bays and Estuaries)aquatic life, wastewaterrequirementAMEL 0.50; MDEL 1.00 μg/LEffluent Limitations for Discharges to Bays and EstuariesBased on Results of Reasonable Potential Analysishigh
#P056physicalhealthmandatorypH Receiving Water Range (Inland)aquatic liferequirement7.0 - 9.0 s.u.Receiving Water Limitations for Inland Surface WatersShall not be depressed below 7.0 nor raised above 9.0high
#P057chemicalhealthmandatoryUn-ionized ammonia (NH3) Receiving Wateraquatic liferequirement<= 0.025 mg/l (as N)Receiving Water Limitations for Inland Surface WatersApplicable to all inland surface watershigh
#P058chemicaltreatmentmandatoryLead, Total Recoverable (Hardness 300+ mg/L)aquatic liferequirementAMEL 15; MDEL 31 μg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersHardness 300 mg/L and abovehigh
#P059chemicaltreatmentmandatoryZinc, Total Recoverable (Hardness 300+ mg/L)aquatic liferequirementAMEL 190; MDEL 390 μg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersHardness 300 mg/L and abovehigh
#P060chemicaltreatmentmandatoryTotal Residual Chlorine (Surf Zone)aquatic life, recreational waterrequirement6-month median 8; Daily Maximum 32; Instantaneous Maximum 240 μg/LEffluent Limitations for Discharges to the Surf Zone of the Pacific OceanApplicable when identified by RPAhigh
#P061chemicaltreatmentmandatoryLead, Total Recoverable (Hardness 200 - 300 mg/L)aquatic liferequirementAMEL 11; MDEL 21 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness between 200 and 300 mg/Lhigh
#P062chemicaltreatmentmandatoryNickel, Total Recoverable (Hardness 200 - 300 mg/L)aquatic liferequirementAMEL 110; MDEL 220 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness between 200 and 300 mg/Lhigh
#P063chemicaltreatmentmandatorySilver, Total Recoverable (Hardness 200 - 300 mg/L)aquatic liferequirementAMEL 13; MDEL 27 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness between 200 and 300 mg/Lhigh
#P064chemicaltreatmentmandatoryZinc, Total Recoverable (Hardness 200 - 300 mg/L)aquatic liferequirementAMEL 150; MDEL 300 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness between 200 and 300 mg/Lhigh
#P065chemicaltreatmentmandatoryCopper, Total Recoverable (Hardness 300+ mg/L)aquatic liferequirementAMEL 25; MDEL 50 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness 300 mg/L and abovehigh
#P066chemicaltreatmentmandatoryNickel, Total Recoverable (Hardness 300+ mg/L)aquatic liferequirementAMEL 140; MDEL 280 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness 300 mg/L and abovehigh
#P067chemicaltreatmentmandatorySilver, Total Recoverable (Hardness 300+ mg/L)aquatic liferequirementAMEL 22; MDEL 44 µg/LHardness-Dependent Metal Limitations for Freshwater Inland Surface WatersReceiving water hardness 300 mg/L and abovehigh
#P068chemicaltreatmentmandatoryCopper, Total Recoverable (Saltwater Inland Surface Waters)aquatic liferequirementAMEL 2.9; MDEL 5.8 µg/LEffluent Limitations for Discharges to Saltwater Inland Surface Waters, Not Including Bays and EstuariesBased on Results of Reasonable Potential Analysishigh
#P069chemicaltreatmentmandatoryZinc, Total Recoverable (Saltwater Inland Surface Waters)aquatic liferequirementAMEL 47; MDEL 95 µg/LEffluent Limitations for Discharges to Saltwater Inland Surface Waters, Not Including Bays and EstuariesBased on Results of Reasonable Potential Analysishigh
#P070chemicaltreatmentmandatoryCopper, Total Recoverable (Bays and Estuaries)aquatic liferequirementAMEL 2.9; MDEL 5.8 µg/LEffluent Limitations for Discharges to Bays and Estuaries, including San Diego Bay but not including Buena Vista LagoonBased on Results of Reasonable Potential Analysishigh
#P071chemicaltreatmentmandatoryZinc, Total Recoverable (Bays and Estuaries)aquatic liferequirementAMEL 47; MDEL 95 µg/LEffluent Limitations for Discharges to Bays and Estuaries, including San Diego Bay but not including Buena Vista LagoonBased on Results of Reasonable Potential Analysishigh
#P072chemicaltreatmentmandatoryCopper, Total Recoverable (Surf Zone)aquatic liferequirement6- month median 6; Daily Maximum 42; Instantaneous Maximum 110 µg/LEffluent Limitations for Discharges to the Surf Zone of the Pacific OceanBased on Results of Reasonable Potential Analysishigh
#P073chemicaltreatmentmandatoryZinc, Total Recoverable (Surf Zone)aquatic liferequirement6- month median 56; Daily Maximum 300; Instantaneous Maximum 780 µg/LEffluent Limitations for Discharges to the Surf Zone of the Pacific OceanBased on Results of Reasonable Potential Analysishigh
#P074microbiologicalhealthmandatoryFecal Coliform (Surf Zone)recreational waterrequirement30 day geometric mean 200; Single Sample Maximum 400 Organisms/ 100 mLBacteria Effluent Limitations for Discharges to the Surf ZoneApplicable to all surf zone dischargeshigh
#P075microbiologicalhealthmandatoryE. coli (San Diego Bay fish handling)aquatic life, otherrequirement<= 7 organisms per mLReceiving Water Limitations for Bays, Estuaries, and Coastal LagoonsIn more than 20 percent of any 20 daily consecutive samples of bay water where bay waters are used for whole fish handlinghigh

D Definitions (189)

Req ID Category Name Context Confidence
#D001Groundwater Extraction DischargeThe discharge of groundwater removed from the ground or drainage collection systems to lower groundwater levels or pressures, control or eliminate groundwater seepage or leakage, stabilize slopes and other earth structures, or form part of a system to remediate groundwater contamination. Groundwater extraction discharges are associated with groundwater control systems employed in construction and foundation dewatering projects, trench and ditch dewatering projects, monitoring wells, tank removal projects, groundwater remediation projects, permanent groundwater drainage and seepage control projects, and other similar activities. The term as used in this Order does not include permanent groundwater extraction discharges to San Diego Bay or reaches of its tributaries under tidal influence with the exception of the discharge to San Diego Bay from the permanent groundwater drainage control system at One America Plaza in the City of San Diego.high
#D002DischargerAny person that is authorized to discharge extracted groundwater under this Order through an NOA issued by the San Diego Water Board.high
#D003Waters of the United StatesGenerally refers to surface waters, as defined for the purposes of the federal Clean Water Act. 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
#D004AMELAverage Monthly Effluent Limitationhigh
#D005ASBSAreas of Special Biological Significancehigh
#D006AWELAverage Weekly Effluent Limitationhigh
#D007Basin PlanWater Quality Control Plan for the San Diego Basinhigh
#D008BATBest Available Technology Economically Achievablehigh
#D009BCTBest Conventional Pollutant Control Technologyhigh
#D010BMPBest Management Practice(s)high
#D011BPJBest Professional Judgementhigh
#D012BPTBest Practicable Treatment Control Technologyhigh
#D013CCRCalifornia Code of Regulationshigh
#D014CEQACalifornia Environmental Quality Acthigh
#D015CIWQSCalifornia Integrated Water Quality Systemhigh
#D016CFRCode of Federal Regulationshigh
#D017CTRCalifornia Toxics Rulehigh
#D018CVCoefficient of Variationhigh
#D019CWAClean Water Acthigh
#D020CWCCalifornia Water Codehigh
#D021DDTDichlorodiphenyltrichloroethanehigh
#D022DmInitial Dilutionhigh
#D023DNQDetected, but Not Quantifiedhigh
#D024ECAEffluent Concentration Allowancehigh
#D025ELAPEnvironmental Laboratory Accreditation Programhigh
#D026ELGEffluent Limitation Guidelineshigh
#D027gpdGallons per Dayhigh
#D028HCHHexachlorocyclohexanehigh
#D029IWCInstream waste concentrationhigh
#D030μgMicrogramhigh
#D031μg/LMicrograms per Literhigh
#D032lbs/dayPounds per Dayhigh
#D033LC 50Percent Waste Giving 50 Percent Survival of Test Organismshigh
#D034LTALong Term Averagehigh
#D035mg/LMilligrams per Literhigh
#D036ml/LMilliliters per Literhigh
#D037MBASMethylene Blue Activated Substanceshigh
#D038MCLMaximum Contaminant Levelshigh
#D039MDELMaximum Daily Effluent Limitationhigh
#D040MDLMethod Detection Limithigh
#D041MERMass Emission Ratehigh
#D042MGDMillion Gallons per Dayhigh
#D043MLMinimal Levelhigh
#D044MPNMost Probable Numberhigh
#D045MRPMonitoring and Reporting Programhigh
#D046MS4Municipal Separate Storm Sewer Systemhigh
#D047MTBEMethyl-tert-butyl etherhigh
#D048MUNMunicipal and Domestic Supply Beneficial Usehigh
#D049NDNot Detectedhigh
#D050NTUNephelometric Turbidity Unithigh
#D051NPDESNational Pollutant Discharge Elimination Systemhigh
#D052NOANotice of Applicabilityhigh
#D053NOELNo Observed Effect Levelhigh
#D054NOEXNotice of Exclusionhigh
#D055NOINotice of Intenthigh
#D056NOTNotice of Terminationhigh
#D057NSPSNew Source Performance Standardhigh
#D058NTRNational Toxics Rulehigh
#D059Ocean PlanCalifornia Ocean Plan, Water Quality Control Plan Ocean Waters Of Californiahigh
#D060PAHPolynuclear Aromatic Hydrocarbonshigh
#D061PCBPolychlorinated Biphenylshigh
#D062PDFPortable Document Formathigh
#D063REC-1Contact Water Recreation Beneficial Usehigh
#D064REC-2Non-contact Water Recreation Beneficial Usehigh
#D065RLReporting Levelhigh
#D066RMDRegulatory Management Decisionhigh
#D067RPAReasonable Potential Analysishigh
#D068RWDReport of Waste Dischargehigh
#D069San Diego Water BoardCalifornia Regional Water Quality Control Board, San Diego Regionhigh
#D070SCCWRPSouthern California Coastal Waters Research Projecthigh
#D071SHELLShellfish Harvesting Beneficial Usehigh
#D072SIPPolicy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed Bays, and Estuaries of Californiahigh
#D073SIYBShelter Island Yacht Basinhigh
#D074SMRSelf Monitoring Reporthigh
#D075State Water BoardState Water Resources Control Boardhigh
#D076TBELTechnology-Based Effluent Limitationshigh
#D077TCDDTetrachlorodibenzo dioxin and congenershigh
#D078Thermal PlanWater Quality Control Plan for Control of Temperature in the Coastal and Interstate Waters and Enclosed Bays and Estuarieshigh
#D079TIEToxicity Identification Evaluationhigh
#D080TMDLTotal Maximum Daily Loadhigh
#D081TREToxicity Reduction Evaluationhigh
#D082TSSTotal Suspended Solidshigh
#D083TSTTest of Significant Toxicityhigh
#D084TUaToxic Units Acutehigh
#D085TUcToxic Units Chronichigh
#D086USEPAUnited Stated Environmental Protection Agencyhigh
#D087U.S.United Stateshigh
#D088WDIDWaste Discharge Identification numberhigh
#D089WDRWaste Discharge Requirementshigh
#D090WERWater Effect Ratiohigh
#D091WETWhole Effluent Toxicityhigh
#D092WLAWasteload Allocationshigh
#D093WQSWater Quality Standardshigh
#D094Average 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
#D095Average 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
#D096Clean Water Act (CWA)The Federal Water Pollution Control Act enacted by Public Law 92-500 as amended by Public Laws 95217, 95-576, 96-483.high
#D097Chronic ToxicityThis parameter shall be used to measure the acceptability of waters for supporting a healthy biota until improved methods are developed to evaluate biological response.high
#D098Contamination'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. [CWC section 13050(k)]high
#D099Daily 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
#D100Detected, 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
#D101DischargerAny person that is authorized to discharge extracted groundwater under this Order through an approved NOA issued by the San Diego Water Board.high
#D102Effluent Concentration Allowance (ECA)ECA is a value derived from the water quality criterion/objective, dilution credit, and ambient background concentration that is used, in conjunction with the coefficient of variation for the effluent monitoring data, to calculate a long-term average (LTA) discharge concentration. The ECA has the same meaning as waste load allocation (WLA) as used in U.S. EPA guidance (Technical Support Document For Water Quality-based Toxics Control, March 1991, second printing, EPA/505/2-90-001).high
#D103Enclosed BaysEnclosed Bays are 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. Enclosed bays of the San Diego Region include, but are not limited to, Mission Bay, and San Diego Bay. Enclosed bays do not include inland surface waters or ocean waters.high
#D104EstuariesEstuaries means waters, including coastal lagoons, located at the mouths of streams that serve as areas of mixing for fresh and ocean waters. Coastal lagoons and mouths of streams that are temporarily separated from the ocean by sandbars shall be considered estuaries. Estuarine waters shall be considered to extend from a bay or the open ocean to a point upstream where there is no significant mixing of fresh water and seawater. Estuarine waters of the San Diego Region include, but are not limited to, the Tijuana River Estuary, the Mouth of San Diego River, Famosa Slough and Channel, Los Penasquitos Lagoon, San Dieguito Lagoon, Batiquitos Lagoon, San Elijo Lagoon, Agua Hedionda Lagoon, Buena Vista Lagoon, Loma Alta Slough, Mouth of San Luis Rey River, Santa Margarita Lagoon, Aliso Creek Mouth, San Juan Creek Mouth, San Mateo Creek Mouth, and the San Onofre Creek Mouth. . Estuaries do not include inland surface waters or ocean waters.high
#D105ExtractionExtraction is the act of forcibly withdrawing groundwater from the sub surface. Extraction through mechanical means is termed 'active' extraction, such as when using pumps to extract groundwater. Alternatively, 'passive' extraction is through the use of gravity, such as with a french drain or weep hole.high
#D106GroundwaterGroundwater means any water, except capillary moisture, located beneath the land surface in soil pore spaces and in the fractures of rock formations or beneath the bed of any river, stream, lake, reservoir, or other body of surface water, whatever the subsurface geologic structure in which such water stands, flows, percolates or otherwise occurs.high
#D107HardnessA characteristic of water caused mainly by the salts of calcium and magnesium, such as bicarbonate, carbonate, sulfate, chloride and nitrate. Hardness or total hardness is generally defined as the sum of the calcium and magnesium concentrations expressed in milligrams per liter of equivalent calcium carbonate.high
#D108Inland Surface WatersAll surface waters of the San Diego Region exclusive of the waters of the Pacific Ocean, enclosed bays and estuaries, coastal lagoons, and groundwaters. Inland Surface Waters includes reservoirs and lakes.high
#D109Instantaneous Maximum Effluent LimitationThe highest allowable value for any single grab sample or aliquot (i.e., each grab sample or aliquot is independently compared to the instantaneous maximum limitation).high
#D110Instantaneous Minimum Effluent LimitationThe lowest allowable value for any single grab sample or aliquot (i.e., each grab sample or aliquot is independently compared to the instantaneous minimum limitation).high
#D111Maximum 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
#D112MedianThe 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
#D113Method 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, Attachment B, revised as of July 3, 1999.high
#D114Minimum 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
#D115MS4 OperatorThe municipal separate storm sewer system (MS4) operator is the entity responsible for the operation of its local MS4 subject to an MS4 NPDES Permit.high
#D116Not Detected (ND)Sample results which are less than the laboratory's MDL.high
#D117Nuisance'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 waste. [Water Code section 13050(m).high
#D118Ocean WatersThe territorial marine waters of the state as defined by California law to the extent these waters are outside of enclosed bays, estuaries, and coastal lagoons. Discharges to ocean waters are regulated in accordance with the State Water Board's California Ocean Planhigh
#D119PollutantsSubstances defined in Clean Water Act section 502(6) (33 U.S.C. section 1362(6)), and incorporated by reference into CWC section 13373.high
#D120Pollution'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. 'Pollution' may include 'contamination.' [Water Code section 13050(l)high
#D121Reporting 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 Order, including an additional factor if applicable as discussed herein.high
#D122Standard Deviation ( σ )Standard Deviation is a measure of variability that is calculated as follows: σ = ( ∑ [(x µ ) 2 ]/(n - 1)) 0.5 where: x is the observed value; µ is the arithmetic mean of the observed values; and n is the number of samples.high
#D123Test of Significant Toxicity (TST)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
#D124Toxicity 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.high
#D125Water Quality StandardsWater quality standards, as defined in CWA Section 303(c) and 40 CFR section 131.6, consist of 1) the beneficial uses of a water body, 2) criteria (referred to as water quality objectives in California law) to protect those uses, and 3) an anti-degradation policy.high
#D126Permanent groundwater extraction dischargeslong-term discharges from groundwater control systems for completed structures needed to lower groundwater levels, reduce hydrostatic pressure, or control infiltration and leakage of groundwater into below ground completed structureshigh
#D127NOEXa notice that indicates that the discharge is not eligible for coverage under this Order and states the reason why.high
#D128NOTprovides notice that the Discharger has ceased the discharge of extracted groundwater associated with the groundwater control activities at the site under this Order.high
#D129Bypassthe intentional diversion of waste streams from any portion of a treatment facility.high
#D130Severe property damagesubstantial physical damage to property, damage to the treatment facilities, which causes them to become inoperable, or substantial and permanent loss of natural resources that can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production.high
#D131Upsetan exceptional incident in which there is unintentional and temporary noncompliance with technology based permit effluent limitations because of factors beyond the reasonable control of the Discharger. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.high
#D132responsible corporate officermeans: (i) A president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy- or decision-making functions for the corporation, or (ii) the manager of one or more manufacturing, production, or operating facilities, provided, the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.high
#D133duly authorized representativeA person is a duly authorized representative only if: a. The authorization is made in writing by a person described in Standard Provisions Reporting V.B.2 above; b. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company; and c. The written authorization is submitted to the San Diego Water Board and State Water Board.high
#D134SMEVsix-month median effluent value determined for a given parameter by calculating the statistical median of all daily effluent values (DEVs) for each parameter within each six-month calendar period (January-June and July-December).high
#D135DEVdaily effluent valueshigh
#D136SMELsix-month median effluent limitationhigh
#D137MMELMedian Monthly Effluent Limithigh
#D138PassA test result that rejects the null hypothesis [Ho = Mean discharge instream waste concentration (IWC) response <= 0.75 x Mean control response] using the Test of Significant Toxicity (TST) approach.high
#D139FailA test result that does not reject the null hypothesis [Ho = Mean discharge instream waste concentration (IWC) response <= 0.75 x Mean control response] using the Test of Significant Toxicity (TST) approach.high
#D140Percent EffectThe relative value at the discharge IWC defined and reported as: Percent Effect = (Mean control response - Mean discharge IWC response) x 100 / (Mean control response).high
#D141Toxicity 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
#D142Standard Deviation ( sigma )a measure of variability that is calculated as follows: sigma = ( sum [ (x - mu)^2 ] / (n - 1) )^0.5 where: x is the observed value; mu is the arithmetic mean of the observed values; and n is the number of samples.high
#D143Standard Deviation ( σ )Standard Deviation is a measure of variability that is calculated as follows: σ = ( ∑ [(x - µ)^2 ]/(n - 1))^0.5 where: x is the observed value; µ is the arithmetic mean of the observed values; and n is the number of samples.high
#D144Waters of the United StatesWaters of the United States are defined as: '(a) All waters, which are currently used, were used in the past, or may be susceptible to use in interstate or foreign commerce, including all waters which are subject to the ebb and flow of the tide; (b) All interstate waters, including interstate 'wetlands;' (c) All other waters such as intrastate lakes, rivers, streams (including intermittent streams), mudflats, sandflats, 'wetlands,' sloughs, prairie potholes, wet meadows, playa lakes, or natural ponds the use, degradation or destruction of which would affect or could affect interstate or foreign commerce including any such waters: (1) Which are or could be used by interstate or foreign travelers for recreational or other purposes; (2) From which fish or shellfish are or could be taken and sold in interstate or foreign commerce; or (3) Which are used or could be used for industrial purpose by industries in interstate commerce; (d) All impoundments of waters otherwise defined as waters of the United States under this definition: (e) Tributaries of waters identified in paragraphs (a) through (d) of this definition; (f) The territorial seas; and (g) 'Wetlands' adjacent to waters (other than waters that are themselves wetlands) identified in paragraphs (a) through (f) of this definition. Waters of the United States do not include prior converted cropland. Notwithstanding the determination of an area's status as prior converted cropland by any other federal agency, for the purposes of the Clean Water Act, the final authority regarding Clean Water Act jurisdiction remains with the EPA.' (40 CFR 122.2)high
#D145Water Quality StandardsWater quality standards, as defined in CWA Section 303(c) and 40 CFR section 131.6, consist of 1) the beneficial uses of a water body, 2) criteria (referred to as water quality objectives in California law) to protect those uses, and 3) an anti-degradation policy. Under state law, the water boards establish beneficial uses and water quality objectives in their water quality control or basin plans. Together with an anti-degradation policy (State Water Board Resolution 68-16), these beneficial uses and water quality objectives serve as water quality standards under the CWA. In CWA parlance, state beneficial uses are called 'designated uses' and state water quality objectives are called 'criteria.' Throughout this Order, the relevant term is used depending on the statutory scheme. The water quality standards described in section V of this Order are enforceable receiving water limitations for the surface water bodies for which they are established.high
#D146HSAhydrologic sub areahigh
#D147Groundwater Extraction DischargeThe discharge of groundwater removed from the ground or drainage collection systems to lower groundwater levels or pressures, control or eliminate groundwater seepage or leakage, stabilize slopes and other earth structures or form part of a system to remediate groundwater contamination. Groundwater extraction discharges are associated with groundwater control systems employed in construction and foundation dewatering projects, trench and ditch dewatering projects, underground monitoring wells, tank removal projects, groundwater remediation projects, permanent groundwater drainage and seepage control projects and other similar activities. The term as used in this Order does not include permanent groundwater extraction discharges to San Diego Bay or its tributaries under tidal influence with the exception of the discharge to San Diego Bay from the permanent groundwater drainage control system at One America Plaza in the City of San Diegohigh
#D148Mining operationsFor this permit, mining operations are grouped into two distinct categories, with distinct effluent limits and requirements applicable to each: a) earth-disturbing activities conducted prior to active mining activities); and b) active mining activities, which includes reclamation. 'Mining operations' can occur at both inactive mining facilities and temporarily inactive mining facilities.high
#D149Earth-disturbing activities conducted prior to active mining activitiesConsists of two classes of earth-disturbing (i.e., clearing, grading and excavation) activities: a. activities performed for purposes of mine site preparation, including: cutting new rights of way (except when related to access road construction); providing access to a mine site for vehicles and equipment (except when related to access road construction); other earth disturbances associated with site preparation activities on any areas where active mining activities have not yet commenced (e.g., for heap leach pads, waste rock facilities, tailings impoundments, wastewater treatment plants); and b. construction of staging areas to prepare for erecting structures such as to house project personnel and equipment, mill buildings, etc., and construction of access roads.high
#D150Active mining activitiesActivities related to the extraction, removal or recovery, and beneficiation of metal ore from the earth; removal of overburden and waste rock to expose mineable minerals; and site reclamation and closure activities. All such activities occur within the 'active mining area.' Reclamation involves activities undertaken, in compliance with applicable mined land reclamation requirements, to return the land to an appropriate post-mining contour and land use in order to meet applicable federal and state reclamation requirements. In addition, once earth-disturbing activities conducted prior to active mining activities have ceased and all related requirements in Part 8.G.4 have been met, and a well-delineated 'active mining area' has been established, all activities (including any clearing, grading, and excavation) that occur within the active mining area are 'active mining activities.'high
#D151Active mining areaA place where work or other activity related to the extraction, removal or recovery of metal ore is being conducted, except, with respect to surface mines, any area of land on or in which grading has been completed to return the earth to desired contour and reclamation work has begun.high
#D152Inactive metal mining facilityA site or portion of a site where metal mining and/or milling occurred in the past but there are no active mining activities occurring as defined above, and where the inactive portion is not covered by an active mining permit issued by the applicable state or federal agency. An inactive metal mining facility has an identifiable owner / operator.high
#D153Temporarily inactive metal mining facilityA site or portion of a site where metal mining and/or milling occurred in the past but currently are not being actively undertaken, and the facility is covered by an active mining permit issued by the applicable state or federal agency.high
#D154Contaminated stormwaterStormwater that comes into direct contact with landfill wastes, the waste handling and treatment areas, or landfill wastewater as defined in Part 8.K.4.4. Some specific areas of a landfill that may produce contaminated stormwater include (but are not limited to) the open face of an active landfill with exposed waste (no cover added); the areas around wastewater treatment operations; trucks, equipment, or machinery that has been in direct contact with the waste; and waste dumping areas.high
#D155Drained free liquidsAqueous wastes drained from waste containers (e.g., drums) prior to landfilling.high
#D156LandfillAn area of land or an excavation in which wastes are placed for permanent disposal, but that is not a land application or land treatment unit, surface impoundment, underground injection well, waste pile, salt dome formation, salt bed formation, underground mine, or cave as these terms are defined in 40 CFR 257.2, 258.2, and 260.10.high
#D157Landfill wastewaterAs defined in 40 CFR Part 445 (Landfills Point Source Category), all wastewater associated with, or produced by, landfilling activities except for sanitary wastewater, non-contaminated stormwater, contaminated ground water, and wastewater from recovery pumping wells. Landfill wastewater includes, but is not limited to, leachate, gas collection condensate, drained free liquids, laboratory derived wastewater, contaminated stormwater, and contact wash water from washing truck, equipment, and railcar exteriors and surface areas that have come in direct contact with solid waste at the landfill facility.high
#D158LeachateLiquid that has passed through or emerged from solid waste and contains soluble, suspended, or miscible materials removed from such waste.high
#D159Non-contaminated stormwaterStormwater that does not come into direct contact with landfill wastes, the waste handling and treatment areas, or landfill wastewater as defined in Part 8.K.4.4. Non-contaminated stormwater includes stormwater that flows off the cap, cover, intermediate cover, daily cover, and/or final cover of the landfill.high
#D160deicingthe term 'deicing' in this permit will generally be used to mean both deicing (removing frost, snow or ice) and anti-icing (preventing accumulation of frost, snow or ice) activities, unless specific mention is made otherwise.high
#D161Inactive coal mining facilityA site or portion of a site where coal mining and/or milling occurred in the past but there are no active mining operations occurring as defined above, and where the inactive portion is not covered by an active mining permit issued by the applicable state or federal agency. An inactive coal mining facility has an identifiable owner / operator. Sites where mining claims are being maintained prior to disturbances associated with the extraction, beneficiation, or processing of mined materials and sites where minimal activities are undertaken for the sole purpose of maintaining a mining claim are not considered either active or inactive mining facilities and do not require an NPDES industrial stormwater permit.high
#D162Temporarily inactive coal mining facilityA site or portion of a site where coal mining and/or milling occurred in the past but currently are not being actively undertaken, and the facility is covered by an active mining permit issued by the applicable state or federal agency.high
#D163Inactive mineral mining facilityA site or portion of a site where mineral mining and/or milling occurred in the past but there are no active mining activities occurring as defined above, and where the inactive portion is not covered by an active mining permit issued by the applicable state or federal agency. An inactive mineral mining facility has an identifiable owner / operator. Sites where mining claims are being maintained prior to disturbances associated with the extraction, beneficiation, or processing of mined materials, and sites where minimal activities are undertaken for the sole purpose of maintaining a mining claim are not considered either active or inactive mining facilities and do not require an NPDES industrial stormwater permit.high
#D164Temporarily inactive mineral mining facilityA site or portion of a site where nonmetallic mineral mining and/or milling occurred in the past but currently are not being actively undertaken, and the facility is covered by an active mining permit issued by the applicable state or federal agency.high
#D165Active mining areaA place where work or other activity related to the extraction, removal or recovery of coal is being conducted, except, with respect to surface mines, any area of land on or in which grading has been completed to return the earth to desired contour and reclamation work has begun.high
#D166Active mining areaA place where work or other activity related to the extraction, removal or recovery of non-metallic minerals is being conducted, except, with respect to surface mines, any area of land on or in which grading has been completed to return the earth to desired contour and reclamation work has begun.high
#D167Contaminated stormwaterStormwater that comes into direct contact with landfill wastes, the waste handling and treatment areas, or landfill wastewater.high
#D168Within 24 hours of the occurrence of a storm eventmeans that you are required to conduct an inspection within 24 hours once a storm event has produced 0.25 inches, even if the storm event is still continuing.high
#D169initiation of stabilizationEPA will consider any of the following types of activities to constitute the initiation of stabilization: 1. Prepping the soil for vegetative or non-vegetative stabilization; 2. Applying mulch or other non-vegetative product to the exposed area; 3. Seeding or planting the exposed area; 4. Starting any of the activities in # 1 - 3 on a portion of the area to be stabilized, but not on the entire area; and 5. Finalizing arrangements to have stabilization product fully installed in compliance with the applicable deadline for completing stabilization.high
#D170Active mining activitiesActivities related to the extraction, removal or recovery, and preparation of coal; removal of overburden and waste rock to expose mineable minerals; and site reclamation and closure activities. All such activities occur within the 'active mining area.' Reclamation involves activities undertaken, in compliance with applicable mined land reclamation requirements, to return the land to an appropriate post-mining contour and land use in order to meet applicable federal and state reclamation requirements. In addition, once earth-disturbing activities conducted prior to active mining activities have ceased and all related requirements in Part 8.H.4 have been met, and a well-delineated 'active mining area' has been established, all activities (including any clearing, grading, and excavation) that occur within the active mining area are 'active mining activities.'high
#D171Active mining activitiesActivities related to the extraction, removal or recovery, and beneficiation of non-metallic minerals from the earth; removal of overburden and waste rock to expose mineable minerals; and site reclamation and closure activities. All such activities occur within the 'active mining area.' Reclamation involves activities undertaken, in compliance with applicable mined land reclamation requirements, to return the land to an appropriate post-mining contour and land use in order to meet applicable federal and state reclamation requirements. In addition, once earth-disturbing activities conducted prior to active mining activities have ceased and all related requirements in Part 8.J.4 have been met, and a well-delineated 'active mining area' has been established, all activities (including any clearing, grading, and excavation) that occur within the active mining area are 'active mining activities'high
#D172Landfill wastewaterAs defined in 40 CFR Part 445 (Landfills Point Source Category) all wastewater associated with, or produced by, landfilling activities except for sanitary wastewater, non-contaminated stormwater, contaminated ground water, and wastewater from recovery pumping wells. Landfill process wastewater includes, but is not limited to, leachate; gas collection condensate; drained free liquids; laboratory- derived wastewater; contaminated stormwater; and contact wash water from washing truck, equipment, and railcar exteriors and surface areas that have come in direct contact with solid waste at the landfill facility.high
#D173Non-contaminated stormwaterStormwater that does not come into direct contact with landfill wastes, the waste handling and treatment areas, or landfill wastewater.high
#D174clear ice deicingapplying deicing fluids during non-precipitation eventshigh
#D175TSDFsHazardous Waste Treatment, Storage, or Disposal facilitieshigh
#D176MSWLFMunicipal Solid Waste Landfillhigh
#D177OSMOffice of Surface Mininghigh
#D178SMCRASurface Mining Control and Reclamation Acthigh
#D179MRFmaterial recovery facilitieshigh
#D180SPCCSpill Prevention, Control, and Countermeasurehigh
#D181SDSSafety Data Sheetshigh
#D182RQReportable Quantityhigh
#D183MGDmillion gallons per dayhigh
#D184Debriswoody material such as bark, twigs, branches, heartwood, or sapwoodhigh
#D185uncontaminated dischargea discharge that meets applicable water quality standardshigh
#D186temporarilythe land will be idle for a period of 14 days or more but earthdisturbing activities will resume in the futurehigh
#D187constructionEarth-disturbing activities associated with the construction of staging areas and the construction of access roads conducted prior to active mininghigh
#D188s.u.standard pH unitshigh
#D189Reclamationactivities undertaken, in compliance with applicable mined land reclamation requirements, to return the land to an appropriate post-mining contour and land use in order to meet applicable federal and state reclamation requirementshigh