No qualitative requirements.
No quantitative requirements.
| Req ID | Category | Name | Context | Confidence |
|---|---|---|---|---|
| #D001 | urbanized areas | urban areas with a population of at least 50,000 | high | |
| #D002 | BMPs | Best Management Practices | high | |
| #D003 | MS4 | An MS4 is a conveyance or system of conveyances that is: owned by a state, city, town, village, or other public entity that discharges to waters of the U.S., designed or used to collect or convey stormwater (e.g., storm drains, pipes, ditches), not a combined sewer, and not part of a sewage treatment plant, or publicly owned treatment works (POTW). | high | |
| #D004 | POTW | publicly owned treatment works | high | |
| #D005 | SWMPs | stormwater management programs | high | |
| #D006 | NPDES | National Pollutant Discharge Elimination System | high | |
| #D007 | MSGP | Multi-Sector General Permit | high | |
| #D008 | Category One (i) | Facilities subject to federal stormwater effluent discharge standards at 40 CFR Parts 405-471 | high | |
| #D009 | Category Two (ii) | Heavy manufacturing (e.g., paper mills, chemical plants, petroleum refineries, steel mills and foundries) | high | |
| #D010 | Category Three (iii) | Coal and mineral mining and oil and gas exploration and processing | high | |
| #D011 | Category Four (iv) | Hazardous waste treatment, storage, and disposal facilities | high | |
| #D012 | Category Five (v) | Landfills, land application sites, and open dumps with industrial wastes | high | |
| #D013 | Category Six (vi) | Metal scrapyards, salvage yards, automobile junkyards, and battery reclaimers | high | |
| #D014 | Category Seven (vii) | Steam electric power generating plants | high | |
| #D015 | Category Eight (viii) | Transportation facilities that have vehicle maintenance, equipment cleaning, or airport deicing operations | high | |
| #D016 | Category Nine (ix) | Treatment works treating domestic sewage with a design flow of 1 million gallons a day or more | high | |
| #D017 | Category Ten (x) | Construction sites that disturb 5 acres or more | high | |
| #D018 | Category Eleven (xi) | Light manufacturing (e.g., food processing, printing and publishing, electronic and other electrical equipment manufacturing, public warehousing and storage) | high | |
| #D019 | Pretreatment standards | pollutant discharge limits which apply to industrial users (IUIUA source of indirect discharge. [40 CFR 403.3(j)]s). | high | |
| #D020 | Pretreatment requirements | substantive or procedural requirements applied to IUs. | high | |
| #D021 | IU | industrial users | high | |
| #D022 | Local limits | site-specific and can be numeric or narrative effluent discharge limits, including BMPs. | high | |
| #D023 | pass through | A 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 | |
| #D024 | interfere | A 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 | |
| #D025 | PGP | Pesticide General Permit | high | |
| #D026 | NOI | Notice of Intent | high | |
| #D027 | NPDES | National Pollutant Discharge Elimination System | high | |
| #D028 | .gov | A .gov website belongs to an official government organization in the United States. | high | |
| #D029 | NPDES Permit Writers’ Clearinghouse | a searchable database containing resources such as permits, templates, and webinars that are shared by NPDES authorities. | high | |
| #D030 | WET | Whole Effluent Toxicity | high | |
| #D031 | CWA | Clean Water Act | high | |
| #D032 | CAFO | Concentrated Animal Feeding Operations | high | |
| #D033 | CORMIX | a 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 | |
| #D034 | SWToolbox | designed to assist NPDES permit writers and other practitioners estimate critical stream statistics such as the 7Q10. | high | |
| #D035 | Delft3D | a modeling package that allows users to simulate flow, sediment transport, water quality in a range of water bodies. | high | |
| #D036 | EFDC | Environment Fluid Dynamics Code (EFDC) can simulate both near- and far-field thermal mixing and can be applied to rivers, lakes, reservoirs, estuaries, and coasts. | high | |
| #D037 | CE-QUAL-W2 | can simulate thermal mixing in rivers, lakes, reservoirs, and estuaries, but is best suited for long and narrow water bodies because it assumes lateral homogeneity. | high | |
| #D038 | National Stormwater Calculator | estimates the annual amount of stormwater runoff from a specific location anywhere in the United States. | high | |
| #D039 | Storm Water Management Model (SWMM) | used for planning, analysis and design related to stormwater runoff, combined and sanitary sewers, and other drainage systems in urban areas. | high | |
| #D040 | Hydrologic and Water Quality System (HAWQS) | an interactive water quantity and quality modeling system to simulate the effect of management practices on water quality. | high | |
| #D041 | SWMM-CAT | The Storm Water Management Model Adjustment Tool (SWMM-CAT) is an add-in tool to SWMM. It is a simple to use software utility that allows future projections to be incorporated into the Storm Water Management Model. | high | |
| #D042 | Delft3D-FLOW | the hydrodynamic module in the Delft 3D package that applies to thermal modeling. | high |