Parameter Viewer

Document ID us-nnwqc-2025-11-05 Title Numeric Nutrient Water Quality Criteria URL https://www.epa.gov/nutrientpollution/numeric-nutrient-water-quality-criteria Jurisdiction /us Subdomain(s) none Language Status completed Analyzed at 2026-05-12 04:41:16.894955+00:00 Relevance inventory_targeted_fetch
3 Qualitative 0 Quantitative 27 Definitions

Q Qualitative Requirements (3)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#R001administrativereportingmandatoryNPDES Permit Coverage RequirementwastewaterFederal regulations at 40 CFR 122.26(b)(14)(i)-(xi) require stormwater discharges associated with specific categories of industrial activity to be covered under NPDES permits (unless otherwise excluded).Applies to 11 categories of industrial activities defined in 40 CFR 122.26(b)(14)(i)-(xi)high
#R002administrativereportingmandatoryState Permit ProcurementwastewaterMost industrial facilities will need to obtain NPDES permit coverage through their state.Facilities located in states authorized to administer the NPDES stormwater permitting programhigh
#R003operationaloperationalmandatoryAdministrative Continuance of 2021 MSGPwastewaterthe 2021 MSGP has been administratively continued in accordance with section 558(c) of the Administrative Procedure Act (see 40 CFR 122.6) and remains in force and effect for facilities/operators that were covered under the permit prior to the 2021 MSGP’s expiration.Facilities/operators that were covered under the permit prior to the 2021 MSGP’s expiration (February 28, 2026)high

P Quantitative Requirements (0)

No quantitative requirements.

D Definitions (27)

Req ID Category Name Context Confidence
#D001MSGPMulti-Sector General Permithigh
#D002NPDESNational Pollutant Discharge Elimination Systemhigh
#D003MSGPMulti-Sector General Permithigh
#D004NPDESNational Pollutant Discharge Elimination Systemhigh
#D005Pretreatment standardspollutant discharge limits which apply to industrial users (IUIUA source of indirect discharge. [40 CFR 403.3(j)]s).high
#D006Industrial users (IU)A source of indirect discharge. [40 CFR 403.3(j)]high
#D007Pretreatment requirementssubstantive or procedural requirements applied to IUs.high
#D008pass throughA discharge that exits the POTW into waters of the United States in quantities or concentrations that, alone or in conjunction with a discharge or discharges from other sources, is a cause of a violation of any requirement of the POTW's NPDES permit (including an increase in the magnitude or duration of a violation). [40 CFR 403.3(p)]high
#D009interfereA discharge that, alone or in conjunction with a discharge or discharges from other sources, both (1) inhibits or disrupts the POTW, its treatment processes or operations, or its sludge processes, use, or disposal; and (2) therefore is a cause of a violation of any requirement of the POTW's NPDES permit (including an increase in the magnitude or duration of a violation) or of the prevention of sewage sludge use or disposal in compliance with ... [applicable] statutory provisions and regulations or permits issued thereunder (or more stringent state or local regulations). [paraphrased from 40 CFR 403.3(k)]high
#D010POTWpublicly owned treatment workshigh
#D011.govA .gov website belongs to an official government organization in the United States.high
#D012PGPPesticide General Permithigh
#D013NOINotice of Intenthigh
#D014NMFSNational Marine Fisheries Servicehigh
#D015HTTPSA lock (Lock A locked padlock) or https:// means you’ve safely connected to the .gov website.high
#D016WETWhole Effluent Toxicityhigh
#D017CWAClean Water Acthigh
#D018CAFOConcentrated Animal Feeding Operationshigh
#D019CSOCombined Sewer Overflowshigh
#D020CORMIXA U.S. EPA-supported mixing zone model and decision support system for environmental impact assessment of regulatory mixing zones resulting from continuous point source discharges.high
#D021EFDCEnvironment Fluid Dynamics Codehigh
#D022SWMMStorm Water Management Modelhigh
#D023SWMM-CATStorm Water Management Model Adjustment Toolhigh
#D024HAWQSHydrologic and Water Quality Systemhigh
#D025SWToolboxdesigned to assist NPDES permit writers and other practitioners estimate critical stream statistics such as the 7Q10.high
#D026Delft3Dmodeling package that allows users to simulate flow, sediment transport, water quality in a range of water bodies.high
#D027National Stormwater Calculatorestimates the annual amount of stormwater runoff from a specific location anywhere in the United States.high