Parameter Viewer

Document ID us-npdescgpsdfca-2025-04-08 Title National Pollutant Discharge Elimination System (NPDES) Construction General Permit (CGP) for Stormwater Discharges from Construction Activities URL https://www.epa.gov/system/files/documents/2025-04/2022-cgp-permit-as-modified.pdf Jurisdiction /us Subdomain(s) none Language Status completed Analyzed at 2026-05-12 05:35:27.141288+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (68)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001administrativeoperationalmandatorySubmit Notice of Intent (NOI)wastewater, otherAll 'operators' (as defined in Appendix A) associated with your construction site who meet the Part 1.1 eligibility conditions, and who seek coverage under this permit, must submit to EPA a complete and accurate NOI in accordance with the deadlines in Table 1 prior to commencement of construction activities (as defined in Appendix A).Prior to commencement of construction activitieshigh
#Q002administrativeoperationalmandatorySWPPP Development Prerequisitewastewater, otherYou must develop a SWPPP consistent with Part 7 before submitting your NOI for coverage under this permit.Before submitting your NOIhigh
#Q003administrativereportingmandatoryNotice of Permit Coverage Postingwastewater, otherYou must post a sign or other notice of your permit coverage at a safe, publicly accessible location in close proximity to the construction site.high
#Q004designtreatmentmandatoryGeneral Stormwater Control Implementationwastewater, otherYou must design, install, and maintain stormwater controls required in Parts 2.2, 2.3, and 2.4 to minimize the discharge of pollutants in stormwater from construction activities.high
#Q005operationaloperationalmandatoryStormwater Control Maintenancewastewater, otherEnsure all stormwater controls are maintained and remain in effective operating condition during permit coverage and are protected from activities that would reduce their effectiveness.During permit coveragehigh
#Q006operationaltreatmentmandatoryInstall Perimeter Controlswastewater, otherInstall sediment controls along any perimeter areas of the site that are downslope from any exposed soil or other disturbed areas.high
#Q007operationaloperationalmandatoryMinimize Sediment Track-outwastewater, otherMinimize sediment track-out. Restrict vehicle use to properly designated exit points; Use appropriate stabilization techniques at all points that exit onto paved roads;high
#Q008operationaloperationalmandatoryStabilize Exposed Portions of Sitewastewater, otherStabilize exposed portions of the site. Implement and maintain stabilization measures ( e.g., seeding protected by erosion controls until vegetation is established, sodding, mulching, erosion control blankets, hydromulch, gravel ) that minimize erosion from any areas of exposed soil on the site in accordance with Part.high
#Q009operationaloperationalmandatoryPollution Prevention Implementationwastewater, otherYou must implement pollution prevention controls in accordance with the following requirements to minimize the discharge of pollutants in stormwater and to prevent the discharge of pollutants from spilled or leaked materials from construction activities.high
#Q010reportingreportingmandatoryEmergency Spill Notificationwastewater, otherDischarges of toxic or hazardous substances from a spill or other release are prohibited, consistent with Part 1.3.5. Where a leak, spill, or other release containing a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under either 40 CFR part 110, 40 CFR part 117, or 40 CFR part 302 occurs during a 24-hour period, you must notify the National Response Center (NRC) at (800) 424-8802 or, in the Washington, DC metropolitan area, call (202) 267-2675 in accordance with the requirements of 40 CFR part 110, 40 CFR part 117, and 40 CFR part 302 as soon as you have knowledge of the release.Where a leak, spill, or other release containing a hazardous substance or oil in an amount equal to or in excess of a reportable quantity occurs during a 24-hour periodhigh
#Q011operationaloperationalmandatoryConstruction Dewatering Requirementswastewater, otherComply with the following requirements to minimize the discharge of pollutants from dewatering operations.During dewatering operationshigh
#Q012monitoringoperationalmandatoryConduct Site Inspectionswastewater, otherAt a minimum, you must conduct a site inspection in accordance with one of the two schedules listed below, unless you are subject to the Part 4.3 site inspection frequency for discharges to sediment or nutrient-impaired or high quality waters, or qualify for a Part 4.4 reduction in the inspection frequency: 4.2.1 At least once every seven (7) calendar days; or 4.2.2 Once every 14 calendar days and within 24 hours of the occurrence of: A storm event that produces 0.25 inches or more of rain within a 24-hour period.high
#Q013reportingreportingmandatoryComplete Inspection Reportswastewater, otherYou must complete an inspection report within 24 hours of completing any site inspection.Within 24 hours of completing any site inspectionhigh
#Q014corrective_actionoperationalmandatoryConditions Triggering Corrective Actionwastewater, otherYou must take corrective action to address any of the following conditions identified at your site: 5.1.1 A stormwater control needs a significant repair or a new or replacement control is needed... 5.1.2 A stormwater control necessary to comply with the requirements of this permit was never installed, or was installed incorrectly; or 5.1.3 Your discharges are not meeting applicable water quality standards; 5.1.4 A prohibited discharge has occurredWhen specific triggering conditions are identified at the sitehigh
#Q015operationaloperationalmandatoryAssemble Stormwater Teamwastewater, otherEach operator, or group of multiple operators, must assemble a 'stormwater team' that will be responsible for carrying out activities necessary to comply with this permit.high
#Q016administrativereportingmandatorySWPPP Contents Requirementwastewater, otherAt a minimum, the SWPPP must include the information specified in this Part and as specified in other parts of this permit.high
#Q017administrativereportingmandatorySubmit Notice of Termination (NOT)wastewater, otherUntil you terminate coverage under this permit, you must comply with all conditions and effluent limitations in the permit. To terminate permit coverage, you must submit to EPA a complete and accurate Notice of Termination (NOT), which certifies that you have met the requirements for terminating in Part 8.When terminating coveragehigh
#Q018prohibitionhealthmandatorySurface Water Discharge ProhibitionotherThe discharge of any waste to surface waters is prohibited.high
#Q019prohibitionhealthmandatoryPollution, Contamination, or Nuisance ProhibitionotherThe disposal of wastes shall not cause pollution, contamination, or nuisance as defined in CWC Section 13050.high
#Q020prohibitionoperationalmandatoryLand Control RequirementotherDischarge of wastes to lands not owned or controlled by the discharger is prohibited, unless the discharger has a written lease or an agreement with the owner.Applies when land is not owned by the dischargerhigh
#Q021operationaloperationalmandatoryInert Waste Load Checking ProgramotherInert solid waste facilities shall develop and implement a load checking program to ensure that all the types of waste accepted at the site are in compliance with these General WDRs.Applies to Small Inert Solid Waste Operationshigh
#Q022prohibitiontreatmentmandatoryBoring Waste Sump Solvent ProhibitionotherDischarges of boring waste, drilling mud, and cuttings from well-drilling operations shall be discharged to on-site sumps and shall not contain halogenated solvents.Applies to well-drilling operationshigh
#Q023operationaloperationalmandatoryPond Freeboard RequirementotherA minimum freeboard of two feet shall be maintained at all wastewater disposal ponds and wastewater storage ponds.Applies to all wastewater disposal and storage pondshigh
#Q024monitoringreportingmandatoryDischarge Monitoring Plan (DMP) SubmissionotherDischargers applying for coverage under these General WDRs shall submit with their NOI a discharge monitoring plan (DMP). The DMP shall include the following information: a. All pollutants believed to be present in the discharge b. Approximate concentration of pollutants in the discharge c. Monitoring locations d. Monitoring frequencies e. Report schedule (dates that reports will be submitted to the Regional Board).Submission required with NOIhigh
#Q025operationaloperationalmandatoryContingency Measure DevelopmentotherThe Discharger shall develop a discharge management plan incorporating contingency measures, should sampling results show violation of water quality standards.high
#Q026reportingoperationalmandatoryMaterial Change ReportingotherPrior to any modifications in the Discharger's facility, that would result in a material change in the quality or quantity of waste discharged or any material change in the location of the discharge, the Discharger shall report in writing to the appropriate Regional Board all pertinent information and obtain confirmation from the Regional Board that such modifications do not disqualify the Discharger from coverage under these General WDRs.Before implementing facility modificationshigh
#Q027reportingreportingmandatoryCritical Noncompliance ReportingotherThe Discharger shall immediately report any noncompliance potentially endangering public health or the environment. Any information shall be provided orally to the Regional Board within 24 hours of the time the Discharger becomes aware of the occurrence. A written report shall also be submitted to the Regional Board Executive Officer within five (5) calendar days of the time the Discharger becomes aware of the occurrence.Noncompliance endangering public health or environmenthigh
#Q028prohibitionhealthmandatoryHazardous Waste Prohibitionwastewater, otherThe discharge of waste classified as 'hazardous' or 'designated' as defined in Title 22 CCR, Section 66261 and CWC Section 13173, is prohibited.high
#Q029prohibitionhealthmandatoryGroundwater Contamination Spread ProhibitionotherThe discharge of waste causing the spread of groundwater contamination is prohibited.high
#Q030prohibitiontreatmentmandatoryNon-Potable System Flushing Restrictiondrinking waterThe discharge of water main, water storage tank, water hydrant pipeline flushing, or hydrostatic testing water from tanks or pipelines that have been used to store or convey any medium other than potable water is prohibited, unless the Discharger has demonstrated to the Regional Board that all residual pollutant concentrations have been reduced to levels below Regional Board Basin Plan groundwater quality objectives.When tanks or pipelines were used for non-potable mediahigh
#Q031designtreatmentmandatoryOnsite Residual Waste Disposal StandardsotherResidual wastes discharged onsite shall meet the following requirements: (1) the discharge must be located greater than 5 feet above local groundwater level, (2) the discharge must be covered by a minimum of 1 foot of clean soil, and (3) the discharge must be located at least 100 feet from the nearest surface water.Applies to onsite disposal of boring waste residualshigh
#Q032operationaloperationalmandatoryMonitoring Well Purge ManagementotherMonitoring well purge water shall be discharged at the monitoring well facility and shall not degrade underlying groundwater. Monitoring well purge water shall not be discharged in a manner causing ponding or threatening a discharge to surface waters.high
#Q033designoperationalmandatoryErosion and Runoff ProtectionotherAll storage and disposal facilities shall be protected against erosion, overland runoff, and other impacts resulting from storm events.high
#Q034reportingreportingmandatoryNew Discharge Site NotificationotherDischargers of well development water, boring waste, and clear water discharges shall provide written notice to the Regional Board before initiating any discharge to a new site.Prior to initiating discharge at new sitehigh
#Q035reportingreportingmandatoryOwnership Change NotificationotherIn the event of any change in control or ownership of land or waste discharge facilities presently owned or controlled by the discharger, the discharger shall notify the succeeding owner or operator of the existence of these General WDRs by letter, a copy of which shall be immediately forwarded to the appropriate Regional Board office.Change in control or ownershiphigh
#Q036administrativereportingmandatoryMonitoring Record RetentionotherRecords shall be maintained for a minimum of three years from the date of the sample, measurement, or report.high
#Q037monitoringreportingmandatoryLaboratory Certification RequirementotherUnless otherwise approved by the appropriate Regional Water Quality Control Board (Regional Board) Executive Officer, all analyses shall be conducted at a laboratory certified for such analyses by the California Department of Health Services.high
#Q038prohibitionhealthmandatoryBasin Plan Objective ComplianceotherThe discharge of waste shall not cause, wholly or in combination with any other discharge(s), the applicable Regional Board's Basin Plan objectives for ground or surface waters to be exceeded.high
#Q039prohibitionoperationalmandatorySmall Inert Waste Disposal ProhibitionotherThe discharge of wastes at Small Inert Solid Waste Disposal Operations that are not listed in Attachment 2 to these General WDRs or approved by the Regional Board is prohibited.Applies to Small Inert Solid Waste Disposal Operationshigh
#Q040treatmenttreatmentmandatoryGroundwater Quality Objective ComplianceotherTable 1 discharges, except monitoring well purge water and boring waste dischargers, shall not contain concentrations of pollutants in excess of the Basin Plan ground water quality objectives.Excludes monitoring well purge water and boring wastehigh
#Q041operationaloperationalmandatoryInert Waste Acceptance RestrictionotherInert solid waste facilities shall only accept inert solid wastes that are listed in Attachment 2 to these General WDRs or that are approved by the Regional Board.Applies to inert solid waste facilitieshigh
#Q042operationaloperationalmandatoryFacility Access ControlotherAccess to the facility shall be limited to ensure that all types of inert solid wastes accepted at the site are in compliance with these General WDRs.Applies to inert solid waste facilitieshigh
#Q043prohibitionoperationalmandatorySite Restriction ProhibitionotherAll other dischargers covered under these General WDRs are prohibited from discharging to sites not described in their NOI or ROWD.Applies to dischargers not specifically covered by Provision C.7 noticehigh
#Q044prohibitiontreatmentmandatoryNonaqueous Phase Liquid ProhibitionotherDischarges of liquids derived from the purging, development, or sampling of groundwater from monitoring wells shall not contain nonaqueous phase liquids (i.e., concentrations of pollutants above the solubility limits).Applies to monitoring well dischargeshigh
#Q045administrativeoperationalmandatoryFacility Document MaintenanceotherA copy of these General WDRs shall be kept at the discharge facility for reference by operating personnel. Key operating and site management personnel shall be familiar with its contents.high
#Q046operationaloperationalmandatoryProper Operation and Maintenance DutyotherThe Discharger shall properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) at all times to assure compliance with these General WDRs.high
#Q047administrativereportingmandatoryInspection and Monitoring Access DutyotherThe Discharger shall allow the Regional Board or an authorized representative... to: a. Enter upon the Discharger's premises... b. Access and copy, at reasonable times, any records... c. Inspect at reasonable times any facilities, equipment... d. Sample or monitor, at reasonable times... any substances or parameters at any location.Upon presentation of credentialshigh
#Q048monitoringoperationalmandatoryMRP and DMP Compliance RequirementotherThe Discharger shall comply with Monitoring and Reporting Program for Water Quality Order No. 2003-0003-DWQ, the approved DMP, and any revisions as prescribed thereto by the Regional Board Executive Officer.high
#Q049reportingreportingmandatoryPlanned Alterations NotificationotherThe Discharger shall give notice to the Regional Board as soon as possible of any planned alterations to the permitted facility that may change the nature or concentration of pollutants in the discharge.high
#Q050monitoringreportingmandatoryExcessive Monitoring Data SubmissionotherIf the Discharger monitors any constituent more frequently than required by the General WDRs, the monitoring results shall be submitted.When monitoring exceeds required frequencyhigh
#Q051monitoringoperationalmandatoryInstrument Calibration RequirementotherAll monitoring instruments and devices that are used by the Discharger to fulfill the prescribed monitoring program shall be properly maintained and calibrated as necessary to ensure their continued accuracy.high
#Q052operationaloperationalmandatoryDuty to Mitigate ViolationsotherThe Discharger shall take all reasonable steps to prevent any discharge in violation of these General WDRs.high
#Q053administrativereportingmandatoryInformation Correction DutyotherWhere the Discharger becomes aware that it failed to submit any relevant facts in a ROWD/NOI or submitted incorrect information in an ROWD/NOI or in any report to the Regional Board, it shall promptly submit the required facts or information.Upon awareness of incorrect or missing information in submittalshigh
#Q054corrective_actionoperationalmandatoryAdverse Impact Mitigation and Accelerated MonitoringotherThe Discharger shall take all necessary steps to minimize or correct any adverse impact on the environment resulting from noncompliance with these General WDRs, including such accelerated or additional monitoring as may be necessary to determine the nature and impact of the noncompliance.Following an instance of noncompliancehigh
#Q055administrativereportingmandatorySignatory RequirementsotherAll reports, NOI, other documents required by these General WDRs, and other information requested by the Regional Board shall be signed by a person described below or by a duly authorized representative of that person.high
#Q056monitoringreportingmandatoryMonitoring Record SpecificationotherRecords of monitoring information shall include the following: a. The date, exact place, and time of sampling or measurements, b. The individual(s) who performed the sampling or measurements, c. The date(s) analyses were performed, d. The individual(s) who performed the analyses, e. The analytical techniques or method used, and f. The results of such analyses.high
#Q057prohibitiontreatmentmandatoryAsphalt Placement Prohibitionotherasphalt shall not be discharged to standing water nor shall it be placed below the highest anticipated groundwater elevationApplies to broken asphalt paving fragmentshigh
#Q058reportingreportingmandatoryWaste Discharge Reporting RequirementotherSection 13260(a) of the California Water Code (CWC) requires that any person discharging waste or proposing to discharge waste within any region, other than to a community sewer system, which could affect the quality of the waters of the State, file a report of waste discharge (ROWD).high
#Q059administrativeoperationalmandatoryDischarge Initiation Approval Requirementwastewater, otherThe discharge may not be initiated until the Regional Board Executive Officer approves the DMP and sends notification of this approval by letter.Prior to initiation of dischargehigh
#Q060administrativereportingmandatoryDuty to Provide Requested InformationotherThe Discharger shall furnish, within a reasonable time, any information the Regional Board or SWRCB may request to determine whether cause exists for modifying, revoking and reissuing, or terminating the Discharger's coverage under these General WDRs.Upon request by Regional Board or SWRCBhigh
#Q061reportingreportingmandatoryReporting Other NoncomplianceotherThe Discharger shall report all instances of noncompliance not reported under Provision No. E.19 at the time monitoring reports are submitted.During regular monitoring report submission cyclehigh
#Q062prohibitionoperationalmandatoryBoring Waste Threat ProhibitionotherDischargers of boring waste shall not threaten an exceedance of applicable Basin Plan ground water quality objectives.Applies to boring waste discharge operationshigh
#Q063reportingreportingmandatoryMonitoring Reporting ScheduleotherMonitoring reports shall be submitted to the Regional Board Executive Officer in accordance with the following schedule: Quarterly (due May 15, August 15, November 15, February 15) or Semiannually (due August 15, February 15).Based on the prescribed monitoring frequencyhigh
#Q064administrativeoperationalmandatoryApplication for Coverage RequirementsotherDischargers seeking coverage under these General WDRs must file with the appropriate Regional Board: (a) a Notice of Intent (NOI) to comply with the terms and conditions of these General WDRs or a ROWD, (b) the applicable first annual fee as required by Title 23, CCR, Section 2200, (c) a project map, (d) evidence of California Environmental Quality Act (CEQA) compliance, and (e) a discharger monitoring plan.When seeking coverage under the General WDRshigh
#Q065operationaltreatmentmandatorySump Decommissioning Procedural RequirementotherAt the end of drilling operations, the Discharger shall either: a. Remove all wastes from the sump; or b. Remove all free liquid from the sump and cover residual solid and semi-solid wastes, provided that representative sampling of the sump contents after liquid removal shows residual solid wastes to be nonhazardous.At the end of drilling operationshigh
#Q066reportingreportingmandatoryNew Discharge Site Geographic Information RequirementotherWells/boring waste and clear water dischargers shall submit the following information before initiation of discharge at a new site: (a) discharge site address and (b) discharge site latitude and longitude (if known).Before initiation of discharge at a new sitehigh
#Q067administrativereportingmandatorySignatory Certification Text RequirementotherAny person signing a document under Provision E.17 makes the following certification, whether written or implied: "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."When signing reports, NOI, or other documents required by the WDRshigh
#Q068reportingreportingmandatoryNew Discharge Site Compliance CertificationotherDischargers of well development water, boring waste, and clear water discharges shall certify that the new discharge site is in compliance with these General WDRs and the requirements established by Sections VII-XVI of Attachment 3 (NOI).Prior to initiating discharge at a new sitehigh

P Quantitative Requirements (31)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001physicaltreatmentmandatoryturbidityotherrequirement<= 50 NTUturbidity measurements of less than or equal to 50 nephelometric turbidity units (NTU) in the controlled construction discharges at the outlet prior to mixing with the receiving surface watersWith regards to controlled construction discharges, if there is no visible turbidity or benthic depositshigh
#P002physicaltreatmentmandatoryturbidityotherrequirement<= 10 NTUthe difference between the upstream and downstream turbidity level is no greater than 10 NTUshall continue until the turbidity water quality standards are met in the receiving waterhigh
#P003physicaltreatmentmandatoryturbidityotherrequirement25 NTUPermittees shall compare the weekly average of the turbidity monitoring results with the established benchmark turbidity value of 25 Nephelometric Turbidity Units (NTU).permittees that have been authorized to dewater under the 2022 CGP and that discharge to Outstanding Resource Watershigh
#P004physicaltreatmentmandatoryturbidityotherrequirement<= 10 %the turbidity limit shall NOT exceed 10% of natural background within the receiving water(s) as determined by Office of Water Protection staff.If the project will entail a discharge to any watercourse or open water bodyhigh
#P005physicaltreatmentmandatoryTurbidityotherrequirement<= 5 NTUTurbidity shall not exceed 5 NTU over natural background turbiditywhen the background turbidity is 50 NTU or lesshigh
#P006physicaltreatmentmandatoryturbidityotherrequirement<= 10 %turbidity shall not increase more than 10%when the background turbidity is more than 50 NTU.high
#P007physicaloperationalmandatoryVolumes of sedimentotherrequirement> 5 cubic yardsVolumes of sediment over five (5) cubic yards must be removed from the active construction sitehigh
#P008physicaltreatmentmandatoryturbidityaquatic liferequirement10 NTUCool Water Aquatic Community/Trout Fisheries: 10 NTUsDewatering discharges into sediment or nutrient-impaired waters, and waters identified as Tier 2, Tier 2.5, or Tier 3high
#P009physicaltreatmentmandatoryturbidityotherrequirement25 NTULakes: 25 NTUsDewatering discharges into sediment or nutrient-impaired waters, and waters identified as Tier 2, Tier 2.5, or Tier 3high
#P010physicaloperationalmandatoryImpacts to wetlandsotherrequirement<= 4.92 acresImpacts to wetlands shall not exceed 4.92 acres.high
#P011designtreatmentmandatorystorage capacityotherrequirement5000 cubic feet per acremaintain the storage capacity of five thousand cubic feet {5,000 cu. ft.) per acre of project area tributary to the basin.The Operators who install a sediment basin or similar impoundmenthigh
#P012physicaltreatmentmandatoryTurbidityotherrequirement25 NTU25 NTUs at the point where the stormwater is discharged from the site.Discharges to segments of waterbodies listed as impaired by the State of Washington under Section 303(d) of the Clean Water Act for turbidity, fine sediment, phosphorus, or pHhigh
#P013chemicaltreatmentmandatorypHotherrequirement6.5 - 8.5 suIn the range of 6.5 - 8.5Discharges to segments of waterbodies listed as impaired by the State of Washington under Section 303(d) of the Clean Water Act for turbidity, fine sediment, phosphorus, or pHhigh
#P014chemicalhealthmandatoryChlorine (Freshwater)drinking water, aquatic lifeMAC20 µg/LMaximum Daily Effluent Limitation for Chlorine in FreshwaterFreshwater aquatic life protectionhigh
#P015chemicalhealthmandatoryChlorine (Saltwater)aquatic life, recreational waterMAC10 µg/LMaximum Daily Effluent Limitation for Chlorine in SaltwaterCalifornia Ocean Plan compliancehigh
#P016chemicalhealthmandatoryCopper (Saltwater)aquatic lifeMAC3.1 µg/LDissolved Saltwater Copper Chronic limitationSaltwater criteria apply when salinity is >= 10 parts per thousand 95% of the timehigh
#P017microbiologicaltreatmentmandatoryPf CL145A-Sdrinking water, aquatic lifeMAC6 mg Active Ingredient/LiterMaximum Daily Effluent Limitation for Pseudomonas fluorescens strain CL145ABased on approximately one-tenth of the lowest LC50 value for rainbow trouthigh
#P018physicalhealthmandatoryTemperature Increaseaquatic liferequirement<= 5 ºFThe ambient temperature to increase more than 5ºF.Receiving water limitationhigh
#P019chemicalhealthmandatoryCopper (Freshwater) Chronicaquatic lifeMAC0.960exp{0.8545 [ln(hardness)] - 1.702} µg/LDissolved Freshwater Copper Chronic limitationWaters where salinity is <= 1 part per thousand 95% or more of the timehigh
#P020chemicalhealthmandatoryChlorine (Freshwater) Monthly Averageaquatic liferequirement10 µg/LMonthly Average limitation for chlorine residuals in freshwaterFreshwater aquatic life protectionhigh
#P021operationaloperationalmandatoryStandard Sampling Depthotherrequirement3 feetSamples shall be collected at three feet below the surface, or mid-depth if water body is less than six feet deep.Standard grab sample protocolhigh
#P022chemicalhealthmandatoryChlorine (Saltwater)aquatic lifeMAC< 10 µg/LMaximum Daily Effluent Limitation for Chlorine in Saltwater per California Ocean PlanWaters where salinity is equal to or greater than 10 parts per thousand 95 percent or more of the timehigh
#P023physicaloperationalmandatoryHardness Cap for Copper Calculationaquatic liferequirement400 mg/LFor waters with a hardness of over 400 mg/L as calcium carbonate, a hardness of 400 mg/L shall be used in calculationsFreshwater aquatic life criteria calculationhigh
#P024physicaloperationalmandatorySalinity Threshold (Freshwater)aquatic liferequirement<= 1 part per thousandFor waters in which the salinity is equal to or less than 1 part per thousand 95 percent or more of the time, the freshwater criteria applyCriterion selectionhigh
#P025physicaloperationalmandatorySalinity Threshold (Saltwater)aquatic liferequirement>= 10 parts per thousandFor waters in which the salinity is equal to or greater than 10 parts per thousand 95 percent or more of the time, saltwater criteria applyCriterion selectionhigh
#P026operationaloperationalmandatoryInstrument Calibration Frequencyotherrequirement1 yearThe Discharger shall maintain and calibrate all monitoring and analysis instruments... at least yearlyhigh
#P027operationaloperationalmandatoryCorrective Action Deadlineotherrequirement60 daysThe Discharger shall make changes to control measures within 60 days of determining changes are necessaryFollowing an unauthorized release, standard violation, or monitoring failurehigh
#P028operationalreportingmandatoryMinimum Sampling Frequency per Environmental Settingotherrequirement6 samplesIf applying six or more times a year, collect six samples for each environmental setting (agricultural, urban, or wetland)Standard monitoring program requirementhigh
#P029operationalreportingmandatoryApplication completeness notification periodotherrequirement30 daysA RWQCB representative will notify you within 30 days of receipt of the application form and any supplemental documents whether your application is complete.Upon receipt of application form and supplemental documentshigh
#P030designreportingrecommendedSite map scaleotherrequirement1:24,000 ratioPlease try to limit your maps to a scale of 1:24,000 (7.5' USGS Quadrangle) or a street map, if more appropriate.Requirement for site map submissionhigh
#P031designreportingguidelineUSGS map resolutionotherrequirement7.5 minuteA USGS 7.5' Quadrangle map or a street map, if more appropriate, is sufficient for most applications.high

D Definitions (140)

Req ID Category Name Context Confidence
#D001monitoring well facilityA facility where monitoring well(s) have been installed to monitor the migration or levels of a pollutant or the effects and/or migration of a particular discharge.high
#D002Appropriate Regional BoardAppropriate Regional Board is the Regional Board that regulates discharges of pollutants to waters of the State for the area that the proposed discharge will occur.high
#D003Well Development DischargeWell Development Discharge is any discharge of water to land during the development of a water well.high
#D004Monitoring Well Purge Water DischargeMonitoring Well Purge Water Discharge is any discharge of well water to land in the immediate vicinity of the monitoring well site during monitoring well sampling.high
#D005Boring Waste DischargeBoring Waste Discharge is any discharge of drilling mud and cuttings from well-drilling operations or any other borings in uncontaminated soils.high
#D006Water main, storage tank, and hydrant flushing dischargesWater main, storage tank, and hydrant flushing discharges are discharges of potable or untreated clear water to land from water line and tank flushing operations.high
#D007Pipeline and Tank Hydrostatic Testing DischargesPipeline and Tank Hydrostatic Testing Discharges are discharges of potable or untreated clear water to land from hydrostatic testing of pipelines and tanks.high
#D008Commercial and Public Swimming Pool DischargesCommercial and Public Swimming Pool Discharges are discharges of swimming pool water to land.high
#D009Small Temporary Dewatering ProjectsSmall Temporary Dewatering Projects are projects that discharge groundwater to land from small construction projects, excavation projects, or dewatering of underground utility vaults.high
#D010Small Inert Solid Waste Disposal OperationsSmall Inert Solid Waste Disposal Operations are operations or facilities, covering two acres of land or less, that accept wastes, which do not contain hazardous waste or soluble pollutants at concentrations in excess of applicable water quality objectives and do not contain significant quantities of decomposable waste.high
#D011Cooling DischargeCooling Discharge is non-contact cooling water discharge, air conditioner condensate discharge, discharge from evaporators, and discharge from heat exchangers.high
#D012ACUTE TOXICITYa. Acute Toxicity (TUa) Expressed in Toxic Units Acute (TUa). b. Lethal Concentration 50% (LC 50) LC 50 (percent waste giving 50% survival of test organisms) shall be determined by static or continuous flow bioassay techniques using standard marine test species as specified in Appendix III. If specific identifiable substances in wastewater can be demonstrated by the discharger as being rapidly rendered harmless upon discharge to the marine environment, but not as a result of dilution, the LC 50 may be determined after the test samples are adjusted to remove the influence of those substances. When it is not possible to measure the 96-hour LC 50 due to greater than 50 percent survival of the test species in 100 percent waste, the toxicity concentration shall be calculated by the expression: TUa = log(100 - S) / 1.7 where: S = percentage survival in 100% waste. If S > 99, TUa shall be reported as zero.high
#D013ALL FORMS OF MARINE LIFEincludes all life stages of all marine species.high
#D014AREA PRODUCTION FOREGONE (APF)also known as habitat production foregone, is an estimate of the area that is required to produce (replace) the same amount of larvae or propagules* that are removed via entrainment at a desalination facilities* intakes. APF is calculated by multiplying the proportional mortality* by the source water body,* which are both determined using an empirical transport model.*high
#D015AREAS OF SPECIAL BIOLOGICAL SIGNIFICANCE (ASBS)are those areas designated by the State Water Board as ocean areas requiring protection of species or biological communities to the extent that maintenance of natural water quality is assured. All Areas of Special Biological Significance are also classified as a subset of STATE WATER QUALITY PROTECTION AREAS.* ASBS are also referred to as State Water Quality Protection Areas* - Areas of Special Biological Significance (SWQPA-ASBS).high
#D016BACTERIA WATER QUALITY OBJECTIVE(S)are the bacteria water quality objectives set forth in Chapter II.B.1.a.(1).high
#D017BASIN PLANis a water quality control plan that consists of a designation or establishment for the waters within a specified area of all of the following: (1) Beneficial uses to be protected, (2) Water quality objectives, (3) A program of implementation needed for achieving water quality objectives.high
#D018BRINEis the byproduct of desalinated* water having a salinity* concentration greater than a desalination facility's* intake source water.high
#D019BRINE MIXING ZONEis the area where salinity* may exceed 2.0 parts per thousand above natural background salinity,* or the concentration of salinity* approved as part of an alternative receiving water limitation. The standard brine mixing zone shall not exceed 100 meters (328 feet) laterally from the points of discharge and throughout the water column. An alternative brine mixing zone, if approved as described in chapter III.M.3.d, shall not exceed 200 meters (656 feet) laterally from the points of discharge and throughout the water column. The brine mixing zone is an allocated impact zone where there may be toxic effects on marine life due to elevated salinity.high
#D020CALENDAR MONTH(S)is a period of time from a day of one month to the day before the corresponding day of the next month if the corresponding day exists, or if not to the last day of the next month (e.g. from January 1 to January 31, from June 15 to July 14, or from January 31 to February 28).high
#D021CHLORDANEshall mean the sum of chlordane-alpha, chlordane-gamma, chlordenealpha, chlordene-gamma, nonachlor-alpha, nonachlor-gamma, and oxychlordane.high
#D022CHRONIC TOXICITYThis parameter shall be used to measure the acceptability of waters for supporting a healthy marine biota until improved methods are developed to evaluate biological response. a. Chronic Toxicity (TUc) Expressed as Toxic Units Chronic (TUc) b. No Observed Effect Level (NOEL) The NOEL is expressed as the maximum percent effluent or receiving water* that causes no observable effect on a test organism, as determined by the result of a critical life stage toxicity test listed in Appendix III, Table III-1.high
#D023DDTshall mean the sum of 4,4'DDT, 2,4'DDT, 4,4'DDE, 2,4'DDE, 4,4'DDD, and 2,4'DDD.high
#D024DEGRADEDegradation shall be determined by comparison of the waste field and reference site(s) for characteristic species diversity, population density, contamination, growth anomalies, debility, or supplanting of normal species by undesirable plant and animal species. Degradation occurs if there are significant* differences in any of three major biotic groups, namely, demersal fish, benthic invertebrates, or attached algae. Other groups may be evaluated where benthic species are not affected, or are not the only ones affected.high
#D025DESALINATION FACILITYis an industrial facility that processes water to remove salts and other components from the source water to produce water that is less saline than the source water.high
#D026DICHLOROBENZENESshall mean the sum of 1,2- and 1,3-dichlorobenzene.high
#D027DOWNSTREAM OCEAN WATERSshall mean waters downstream with respect to ocean currents.high
#D028DREDGED MATERIALAny material* excavated or dredged from the navigable waters of the United States, including material* otherwise referred to as 'spoil'.high
#D029EELGRASS BEDSare aggregations of the aquatic plant species of the genus Zostera .high
#D030EMPIRICAL TRANSPORT MODEL (ETM)is a methodology for determining the spatial area known as the source water body* that contains the source water population, which are the organisms that are at risk of entrainment as determined by factors that may include but are not limited to biological, hydrodynamic, and oceanographic data. ETM can also be used to estimate proportional mortality,* Pm.high
#D031ENCLOSED BAYSare indentations along the coast which enclose an area of oceanic water within distinct headlands or harbor works. Enclosed bays include all bays where the narrowest distance between headlands or outermost harbor works is less than 75 percent of the greatest dimension of the enclosed portion of the bay. This definition includes but is not limited to: Humboldt Bay, Bodega Harbor, Tomales Bay, Drakes Estero, San Francisco Bay, Morro Bay, Los Angeles Harbor, Upper and Lower Newport Bay, Mission Bay, and San Diego Bay.high
#D032ENDOSULFANshall mean the sum of endosulfan-alpha and -beta and endosulfan sulfate.high
#D033ESTUARIES AND COASTAL LAGOONSwaters at the mouths of streams that serve as mixing zones for fresh and ocean* waters during a major portion of the year. Mouths of streams that are temporarily separated from the ocean by sandbars shall be considered as estuaries. Estuarine waters will generally be considered to extend from a bay or the open ocean to the upstream limit of tidal action but may be considered to extend seaward if significant* mixing of fresh and salt water occurs in the open coastal waters. The waters described by this definition include but are not limited to the Sacramento-San Joaquin Delta as defined by section 12220 of the California Water Code, Suisun Bay, Carquinez Strait downstream to Carquinez Bridge, and appropriate areas of the Smith, Klamath, Mad, Eel, Noyo, and Russian Rivers.high
#D034FEASIBLEfor the purposes of chapter III.M, shall mean capable of being accomplished in a successful manner within a reasonable period of time, taking into account economic, environmental, social, and technological factors.high
#D035FLOW AUGMENTATIONis a type of in-plant dilution and occurs when a desalination facility* withdraws additional source water for the specific purpose of diluting brine* prior to discharge.high
#D036FULL CAPTURE SYSTEMis a treatment control*, or series of treatment controls*, including but not limited to, a multi-benefit project* or a low-impact development control* that traps all particles that are 5 mm or greater, and has a design treatment capacity that is either: a) of not less than the peak flow rate, Q, resulting from a one-year, one-hour, storm in the subdrainage area, or b) appropriately sized to, and designed to carry at least the same flows as, the corresponding storm drain.high
#D037GEOMETRIC MEAN (GM)is a type of mean or average that indicates the central tendency or typical value of a set of numbers by using the product of their values (as opposed to the arithmetic mean which uses their sum). The geometric mean is defined as the nth root of the product of n numbers. The formula is expressed as: GM = n√x1x2...xn, where x is the sample value and n is the number of samples taken.high
#D038GRAYWATERis drainage from galley, dishwasher, shower, laundry, bath, and lavatory wash basin sinks, and water fountains, but does not include drainage from toilets, urinals, hospitals, or cargo spaces.high
#D039INDICATOR BACTERIAincludes total coliform bacteria, fecal coliform bacteria (or E. coli ), and/or Enterococcus bacteria.high
#D040INITIAL DILUTIONis the process which results in the rapid and irreversible turbulent mixing of wastewater with ocean water around the point of discharge. For a submerged buoyant discharge, characteristic of most municipal and industrial wastes that are released from the submarine outfalls, the momentum of the discharge and its initial buoyancy act together to produce turbulent mixing. Initial dilution in this case is completed when the diluting wastewater ceases to rise in the water column and first begins to spread horizontally. For shallow water submerged discharges, surface discharges, and nonbuoyant discharges, characteristic of cooling water wastes and some individual discharges, turbulent mixing results primarily from the momentum of discharge. Initial dilution, in these cases, is considered to be completed when the momentum induced velocity of the discharge ceases to produce significant* mixing of the waste, or the diluting plume reaches a fixed distance from the discharge to be specified by the Regional Board, whichever results in the lower estimate for initial dilution.high
#D041KELP BEDSare aggregations of marine algae of the order Laminariales, including species in the genera Macrocystis, Nereocystis, and Pelagophycus . Kelp beds include the total foliage canopy throughout the water column.high
#D042METHOD DETECTION LIMIT (MDL)is the minimum concentration of a substance that can be measured and reported with 99% confidence that the analyte concentration is greater than zero, as defined in 40 CFR PART 136 Appendix B.high
#D043MINIMUM LEVEL (ML)is the concentrations 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
#D044OCEAN WATERSare the 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.* If a discharge outside the territorial waters of the State could affect the quality of the waters of the State, the discharge may be regulated to assure no violation of the Ocean Plan will occur in ocean waters.high
#D045PCBs (polychlorinated biphenyls)shall mean the sum of chlorinated biphenyls whose analytical characteristics resemble those of Aroclor-1016, Aroclor-1221, Aroclor1232, Aroclor-1242, Aroclor-1248, Aroclor-1254 and Aroclor-1260.high
#D046SALINITYis a measure of the dissolved salts in a volume of water. For the purposes of this Plan, salinity shall be measured using a standard method approved by the regional water board (e.g. Standard Method 2520 B, EPA Method 120.1, EPA Method 160.1) and reported in parts per thousand (ppt). For historical salinity data not recorded in parts per thousand, the regional water boards may accept converted data at their discretion.high
#D047TRASHmeans all improperly discarded solid material from any production, manufacturing, or processing operation including, but not limited to, products, product packaging, or containers constructed of plastic, steel, aluminum, glass, paper, or other synthetic or natural materials.high
#D048State Water BoardState Water Resources Control Board.high
#D049Regional Water BoardCalifornia Regional Water Quality Control Board.high
#D050Environmental Protection Agencyfederal Environmental Protection Agency.high
#D051ETM/APF APPROACH or ANALYSISFor guidance on how to perform an ETM/APF analysis please see Appendix E of the Staff Report for Amendment to the Water Quality Control Plan For Ocean Waters of California Addressing Desalination Facility Intakes, Brine Discharges, And The Incorporation Of Other Non-substantive Changes.high
#D052FULL CAPTURE SYSTEM EQUIVALENCYthe Trash* load that would be reduced if full capture systems* were installed, operated, and maintained for all storm drains that capture runoff from the relevant areas of land (priority land uses*, significant trash generating areas*, facilities or sites regulated by NPDES permits for discharges of storm water* associated with industrial activity, or specific land uses or areas that generate substantial amounts of Trash*, as applicable).high
#D053HALOMETHANESshall mean the sum of bromoform, bromomethane (methyl bromide) and chloromethane (methyl chloride).high
#D054HCHshall mean the sum of the alpha, beta, gamma (lindane) and delta isomers of hexachlorocyclohexane.high
#D055IN-KIND MITIGATIONis when the habitat or species lost is the same as what is replaced through mitigation.high
#D056INSTITUTIONAL CONTROLSare non-structural best management practices (i.e., no structures are involved) that may include, but not be limited to, street sweeping, sidewalk Trash* bins, collection of the Trash*, anti-litter educational and outreach programs, producer take-back for packaging, and ordinances.high
#D057LARGE PASSENGER VESSELSare vessels of 300 gross registered tons or greater engaged in carrying passengers for hire.high
#D058LOW-IMPACT DEVELOPMENT CONTROLSare treatment controls* that employ natural and constructed features that reduce the rate of storm water* runoff, filter out pollutants, facilitate storm water* storage onsite, infiltrate storm water* into the ground to replenish groundwater supplies, or improve the quality of receiving groundwater and surface water. (See Water Code § 10564.)high
#D059LOECthe lowest observed effect concentration or the lowest concentration of effluent that causes observable adverse effects in exposed test organisms.high
#D060MARICULTUREis the culture of algae, plants, and animals in marine waters independent of any pollution source.high
#D061MARINE MANAGED AREASare named, discrete geographic marine or estuarine areas along the California coast designated by law or administrative action, and intended to protect, conserve, or otherwise manage a variety of resources and their uses. According to the California Public Resources Code (§§ 36600 et seq.) there are six classifications of marine managed areas, including State Marine Reserves, State Marine Parks and State Marine Conservation Areas, State Marine Cultural Preservation Areas, State Marine Recreational Management Areas, and State Water Quality Protection Areas.*high
#D062MARKET SQUID NURSURIESare comprised of numerous egg capsules, each containing approximately 200 developing embryos, attached in clusters or mops to sandy substrate with moderate water flow. Market squid ( Doryteuthis opalescens ) nurseries occur at a wide range of depths; however, mop densities are greatest in shallow, nearshore waters between ten and 100 meters (328 feet) deep.high
#D063MATERIAL(a) In common usage: (1) the substance or substances of which a thing is made or composed (2) substantial; (b) For purposes of this Ocean Plan relating to waste disposal, dredging and the disposal of dredged material* and fill, MATERIAL means matter of any kind or description which is subject to regulation as waste, or any material dredged from the navigable waters of the United States. See also, DREDGED MATERIAL.* For the purposes of chapter III.M.2.d, materials relates to the common usage in (a).high
#D064MULTI-BENEFIT PROJECTis a treatment control* project designed to achieve any of the benefits set forth in section 10562, subdivision (d) of the Water Code. Examples include projects designed to: infiltrate, recharge or store storm water* for beneficial reuse; develop or enhance habitat and open space through storm water* and nonstorm water management; and/or reduce storm water* and non-storm water runoff volume.high
#D065MULTIPORT DIFFUSERSare linear structures consisting of spaced ports or nozzles that are installed on submerged marine outfalls. For the purposes of chapter III.M, multiport diffusers discharge brine* waste into an ambient receiving water body and enable rapid mixing, dispersal, and dilution of brine* within a relatively small area.high
#D066MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4)has the same meaning set forth in 40 Code of Federal Regulations section 122.26(b)(8).high
#D067NATURAL BACKGROUND SALINITYis the salinity* at a location that results from naturally occurring processes and is without apparent human influence.high
#D068NATURAL LIGHTReduction of natural light may be determined by the Regional Board by measurement of light transmissivity or total irradiance, or both, according to the monitoring needs of the Regional Board.high
#D069NO DISCHARGE ZONE (NDZ)is an area in which both treated and untreated sewage discharges from vessels are prohibited. Within NDZ boundaries, vessel operators are required to retain their sewage discharges onboard for disposal at sea (beyond three miles from shore) or onshore at a pump-out facility.high
#D070NON-STORM WATER DISCHARGEis any runoff that is not the result of a precipitation event. This is often referred to as 'dry weather flow.'high
#D071OCEANGOING VESSELS(i.e., oceangoing ships) means commercial vessels of 300 gross registered tons or more calling on California ports or places, excluding active military vessels.high
#D072OILY BILGE WATERincludes bilge water that contains used lubrication oils, oil sludge and slops, fuel and oil sludge, used oil, used fuel and fuel filters, and oily waste.high
#D073OUT-OF-KIND MITIGATIONis when the habitat or species lost is different than what is replaced through mitigation.high
#D074PAHs (polynuclear aromatic hydrocarbons)shall mean the sum of acenaphthylene, anthracene, 1,2-benzanthracene, 3,4-benzofluoranthene, benzo[k]fluoranthene, 1,12-benzoperylene, benzo[a]pyrene, chrysene, dibenzo[ah]anthracene, fluorene, indeno[1,2,3-cd]pyrene, phenanthrene and pyrene.high
#D075PERMITTING AUTHORITYmeans the State Water Board or Regional Water Board, whichever issues the permit.high
#D076PREPRODUCTION PLASTIChas the same meaning set forth in section 13367(a) of the Water Code.high
#D077PRIORITY LAND USESare those developed sites, facilities, or land uses (i.e., not simply zoned land uses) within the MS4* permittee's jurisdiction from which discharges of Trash* are regulated by this Ocean Plan as follows: (1) High-density residential: all land uses with at least ten (10) developed dwelling units/acre. (2) Industrial : land uses where the primary activities on the developed parcels involve product manufacture, storage, or distribution... (3) Commercial : land uses where the primary activities on the developed parcels involve the sale or transfer of goods or services to consumers... (4) Mixed urban : land uses where high-density residential, industrial, and/or commercial land uses predominate collectively (i.e., are intermixed). (5) Public transportation stations : facilities or sites where public transit agencies' vehicles load or unload passengers or goods (e.g., bus stations and stops).high
#D078PROPAGULESare structures that are capable of propagating an organism to the next stage in its life cycle via dispersal. Dispersal is the movement of individuals from their birth site to their reproductive grounds.high
#D079PROPORTIONAL MORTALITY, Pmpercentage of larval organisms or propagules* in the source water body* that is expected to be entrained at a desalination facility's* intake. It is assumed that all entrained larvae or propagules* die as a result of entrainment.high
#D080RECEIVING WATERfor permitted storm water discharges and nonpoint sources, should be measured at the point of discharge(s), in the surf zone immediately where runoff from an outfall meets the ocean water (a.k.a., at point zero).high
#D081REFERENCE SYSTEMis a watershed or waterbody segment determined by the Water Board to be minimally disturbed by anthropogenic stresses but otherwise is representative of conditions of the assessed site, watershed, or water body segment.high
#D082SEAWATERsalt water that is in or from the ocean. For the purposes chapter III.M, seawater includes tidally influenced waters in coastal estuaries and coastal lagoons* and underground salt water beneath the seafloor, beach, or other contiguous land with hydrologic connectivity to the ocean.high
#D083SENSITIVE HABITATSfor the purposes of this Plan, are kelp beds,* rocky substrate, surfgrass beds,* eelgrass beds,* oyster beds, spawning grounds for state or federally managed species, market squid nurseries,* or other habitats in need of special protection as determined by the Water Boards.high
#D084SHELLFISHare organisms identified by the California Department of Public Health as shellfish for public health purposes (i.e., mussels, clams and oysters).high
#D085SIGNIFICANTdifference is defined as a statistically significant difference in the means of two distributions of sampling results at the 95 percent confidence level.high
#D086SIGNIFICANT TRASH GENERATING AREASmeans all locations or facilities within the Department's jurisdiction where Trash* accumulates in substantial amounts, such as: (1) Highway on- and off-ramps in high density residential, commercial, and industrial land uses... (2) Rest areas and park-and-rides. (3) State highways in commercial and industrial land uses... (4) Mainline highway segments to be identified by the Department through pilot studies and/or surveys.high
#D087SINGLE SAMPLE MAXIMUM (SSM)is a maximum value not to be exceeded in any single sample.high
#D088SOURCE WATER BODYis the spatial area that contains the organisms that are at risk of entrainment at a desalination facility* as determined by factors that may include, but are not limited to, biological, hydrodynamic, and oceanographic data.high
#D089STATE WATER QUALITY PROTECTION AREAS (SWQPAs)are nonterrestrial marine or estuarine areas designated to protect marine species or biological communities from an undesirable alteration in natural water quality. All Areas of Special Biological Significance (ASBS)* that were previously designated by the State Water Board in Resolutions 74-28, 74-32, and 75-61 are now also classified as a subset of State Water Quality Protection Areas and require special protections afforded by this Plan.high
#D090STATE WATER QUALITY PROTECTION AREAS - GENERAL PROTECTION (SWQPA-GP)designated by the State Water Board to protect marine species and biological communities from an undesirable alteration in natural water quality within State Marine Parks and State Marine Conservation Areas.high
#D091STATISTICAL THRESHOLD VALUE (STV)for the bacteria water quality objective* is a set value that approximates the 90th percentile of the water quality distribution of a bacterial population. The STV* for the bacteria water quality objective* is 110 cfu/100mL.high
#D092STORM WATERhas the same meaning set forth in 40 Code of Federal Regulations section 122.26(b)(13) (Nov. 16, 1990).high
#D093SUBSURFACE INTAKEfor the purposes of chapter III.M, is an intake withdrawing seawater* from the area beneath the ocean floor or beneath the surface of the earth inland from the ocean.high
#D094SURFGRASS BEDSare aggregations of marine flowering plants of the genus Phyllospadix .high
#D095TCDD EQUIVALENTSshall mean the sum of the concentrations of chlorinated dibenzodioxins (2,3,7,8-CDDs) and chlorinated dibenzofurans (2,3,7,8-CDFs) multiplied by their respective toxicity factors, as shown in the table below.high
#D096TRASH PROVISIONSare the water quality objective for Trash*, as well as the prohibition of discharge set forth in Chapter III.I and implementation requirements set forth in Chapter III.L herein.high
#D097TREATMENT CONTROLSare structural best management practices to either (a) remove pollutants and/or solids from storm water* runoff, wastewater, or effluent, or (b) capture, infiltrate or reuse storm water* runoff, wastewater, or effluent. Treatment controls include full capture systems* and low-impact development controls*.high
#D098WASTEAs used in this Plan, waste includes a discharger's total discharge, of whatever origin, i.e., gross, not net, discharge.high
#D099WATER RECLAMATIONThe treatment of wastewater to render it suitable for reuse, the transportation of treated wastewater to the place of use, and the actual use of treated wastewater for a direct beneficial use or controlled use that would not otherwise occur.high
#D100WQS VARIANCEA water quality standards variance , as defined by 40 Code of Federal Regulations section 131.3(o), is a time-limited designated use and criterion for a specific pollutant(s) or water quality parameter(s) that reflect the highest attainable condition during the term of the water quality standards variance.high
#D101existing facilitiesdesalination facilities* that have been issued an NPDES permit and all building permits and other governmental approvals necessary to commence construction for which the owner or operator has relied in good faith on those previously-issued permits and approvals and commenced construction of the facility beyond site grading prior to January 28, 2016.high
#D102expanded facilitiesexisting facilities for which, after January 28, 2016, the owner or operator does either of the following in a manner that could increase intake or mortality of all forms of marine life * beyond that which was originally approved in any NPDES permit or Water Code section 13142.5, subdivision (b) (hereafter Water Code section 13142.5(b)) determination: 1) increases the amount of seawater* used either exclusively by the facility or used by the facility in conjunction with other facilities or uses, or 2) changes the design or operation of the facility.high
#D103new facilitiesdesalination facilities* that are not existing facilities or expanded facilities.high
#D104positively buoyant commingled effluentthe commingled plume rises when it enters the receiving water body due to salinity* levels in the commingled discharge being lower than the natural background salinity.*high
#D105reported Minimum Levelthe Minimum* Level (and its associated analytical method) chosen by the discharger for reporting and compliance determination from the Minimum* Levels included in their permit.high
#D106DNQDetected, but Not Quantifiedhigh
#D107NDNot Detectedhigh
#D108NGINational Epidemiological and Environmental Assessment of Recreational Water gastrointestinal illness ratehigh
#D109GC MethodGas Chromatographyhigh
#D110GCMS MethodGas Chromatography / Mass Spectrometryhigh
#D111HPLC MethodHigh Pressure Liquid Chromatographyhigh
#D112COLOR MethodColorimetrichigh
#D113DCP MethodDirect Current Plasmahigh
#D114FAA MethodFlame Atomic Absorptionhigh
#D115GFAA MethodGraphite Furnace Atomic Absorptionhigh
#D116HYDRIDE MethodGaseous Hydride Atomic Absorptionhigh
#D117ICP MethodInductively Coupled Plasmahigh
#D118ICPMS MethodInductively Coupled Plasma / Mass Spectrometryhigh
#D119SPGFAA MethodStabilized Platform Graphite Furnace Atomic Absorption (i.e., US EPA 200.9)high
#D120CVAA MethodCold Vapor Atomic Absorptionhigh
#D121toxicity reduction evaluation (TRE)The TRE shall include all reasonable steps to identify the source of toxicity. Once the source(s) of toxicity is identified, the discharger shall take all reasonable steps necessary to reduce toxicity to the required level.high
#D122toxicity identification evaluation (TIE)A set of procedures to identify the specific chemicals responsible for effluent toxicity.high
#D123Marine Protected Areas (MPAs)Marine Protected Areas as defined in the California Public Resources Code as State Marine Reserves, State Marine Parks and State Marine Conservation Areas, established by the Fish and Game Commission, or the Parks and Recreation Commission.high
#D124AB 411 beacha beach visited by more than 50,000 people annually and located on an area adjacent to a storm drain that flows in the summer. (Health & Saf. Code § 115880.)high
#D125SWAMPSurface Water Ambient Monitoring Programhigh
#D126MQOsmeasurement quality objectiveshigh
#D127QAPrPSWAMP Quality Assurance Project Planhigh
#D128CEDENCalifornia Environmental Data Exchange Networkhigh
#D129CWCCalifornia Water Codehigh
#D130SLCState Lands Commissionhigh
#D131MGDmillion gallons per dayhigh
#D132TMDLsTMDLs include waste load allocations for point sources, load allocations for nonpoint sources, and natural background levels to identify and enumerate each individual source.high
#D133Track 1Install, operate, and maintain full capture systems* for all storm drains that captures runoff from the priority land uses* in their jurisdictions.high
#D134Track 2Install, operate, and maintain any combination of full capture systems*, multi-benefit projects*, other treatment controls*, and/or institutional controls* within either the jurisdiction of the MS4* permittee or within the jurisdiction of the MS4* permittee and contiguous MS4* permittees.high
#D135VGPfederal NPDES Vessel General Permit (VGP) which are not large passenger vessels* must follow the best management practices for graywater* as required in the VGP, including the use of only those cleaning agents (e.g., soaps and detergents) that are phosphate-free, non-toxic, and nonbioaccumulative.high
#D136LC 50LC 50 (percent waste giving 50% survival of test organisms) shall be determined by static or continuous flow bioassay techniques using standard marine test species as specified in Appendix III.high
#D137NOELThe NOEL is expressed as the maximum percent effluent or receiving water* that causes no observable effect on a test organism, as determined by the result of a critical life stage toxicity test listed in Appendix III, Table III-1.high
#D138TUaToxic Units Acute (TUa)high
#D139TUcToxic Units Chronic (TUc)high
#D140MRPsmonitoring and reporting programs (MRPs) that will implement this monitoring guidance. Regional Water Boards are responsible for issuing monitoring and reporting programs (MRPs) that will implement this monitoring guidance.high