Stormwater BMPs for SIC Code 2121, Stormwater Permitting Guide
SIC Code 2121
2026 Stormwater Permit Compliance for SIC Code 2121 and applicable BMPs
Common Type-Based, Structural BMPs
Point BMP
Constructed Wetland
Infiltration Basin
Bioretention
Sand Filter (surface)
Rain Barrel
Cistern
Wet Pond
Dry Pond
Linear BMP
Grassed Swale
Infiltration Trench
Vegetated Filter Strip
Sand Filter (non-surface)
Area BMP
Green Roof
Porous Pavement
Common Pollutant Sources:
Exposure of lumber, residues, and vehicles/equipment to precipitation
Parts cleaning
Waste disposal of oily rags, oil and gas filters, batteries, coolants, degreasers
Fluid replacement including hydraulic fluid, oil, transmission fluid, radiator fluids, and grease
Diesel fuel
Common Toxicants
Nutrients
nitrates
Pesticides
2,4-D γ -BHC (lindane)
malathion
atrazine
chlordane
diazinon
Other organics
VOCs
1,3-dichloro-benzene
anthracene
benzo(a) anthracene
benzo(b) fluoranthene
benzo(k) fluoranthene
benzo(a) pyrene
bis (2-ethylhexyl) phthalate
fluoranthene
fluorene
naphthalene
pentachlorophenol
phenanthrene
pyrene
Pathogens
enteroviruses
Shigella
Pseudomonas aeruginosa
protozoa
Heavy Metals
nickel
cadmium
chromium
lead
zinc
copper
Salts
chloride
Common Pollutants:
BOD, TSS, oil, and grease
Solvents, oil, heavy metals, acid/alkaline wastes
Oil, heavy metals, solvents, acids
Oil and grease, arsenic, lead, cadmium, chromium, COD, and benzene
Diesel, gasoline, oil
Factors that can affect water quality:
Geographic location
Hydrogeology
Topography
Type, duration, and intensity of precipitation events
Extent of impervious surfaces (e.g., concrete or asphalt)
Type of ground cover (e.g., vegetation, crushed stone, or dirt)
Size of the operation
This site focuses or refers to information and services regarding United States Environmental Protection Agency (U.S. EPA) National Pollutant Discharge Elimination System (NPDES) Notice of Intent (NOI) State Water Resources Control Board (SWRCB) Turbidity Debris Qualified Industrial Storm water Practitioner (QISP) Effluent Limitation Storm Water Pollution Prevention Plan (SWPPP) Exceedance Response Action (ERA) Southern California Water Quality Objectives Best Management Practices (BMP) Notice of Non Applicability (NONA) Numeric Action Level (NAL) Total Dissolved Solids (TDS) Source Legally Responsible Person (LRP) Method Detection Limit Storm wattle Standard Industrial Classification (SIC) Stormwater Benchmarks Non-Governmental Organization (NGO) Total Maximum Daily Load (TMDL) Industrial Materials No Exposure Certification (NEC) Numeric Action Level (NAL) Exceedance Monitoring Implementation Plan Field Measurements Total Suspended Solids (TSS) Operator Qualifying Storm Event (QSE) Numeric Effluent Limitation (NEL) New Discharge(r) pH Storm Water Systems (SWS) Non stormwater Monitoring Requirements State water Board Stormwater Storm Water Discharge Associated with Industrial Activity Storm Water Multiple Application and Report Tracking System (SMARTS) Scrap Metal Permit Third Party Environmental Lawsuit (TPEL) Northern California Plastic Materials Stormwater Discharge Points Waste Discharge Identification Number (WDID) Sheet Flow Municipal Separate Storm Sewer System (MS4) Clean Water Act (CWA) Biochemical Oxygen Demand (BOD) Stormwater Permit New Source Performance Standards North American Industrial Classification System (NAICS) Toxicity Third Party Environmental Group (TPEG) Scheduled Facility Operating Hours Oil and Grease (O&G) Industrial Storm wattles Non Storm Water Discharges (NSWD) Minimum Level Sediment Facility Notice of Termination (NOT) New Industrial General Permit Total Organic Carbon (TOC) Sedimentation Detected Not Quantifiable Flocculant Socks Straw Wattles Non Detect New Source Performance Standards (NSPS) Wattle Sediment Control BMPs Stormwater Guarantee Best Practicable Control Technology Currently Available (BPT) Best Available Technology Economically Achievable (BAT) Erosion Control BMPs Quality Assurance/Quality Control (QA/QC) Industrial General Permit (IGP) Trade Secret Effective Date Stormwater Drainage Run-on Water Quality Standards Chain of Custody Effluent Best Conventional Pollutant Control Technology (BCT) Drainage Area Runoff Control BMPs Wattles Technology Based Effluent Limitation (TBEL) Structural Controls Permit Registration Documents (PRDs) Multi Sector General Permit (MSGP) Good Housekeeping BMPs Ontario Water Quality Based Effluent Limitation (WQBEL) Division of Water Quality (DWQ) Storm Wattles Effluent Limitations Guidelines (ELGs) Regional Water Board Waters of the United States Discharger Areas of Special Biological Significance (ASBS) Erosion Natural Background and more.
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Do businesses with sic code 2121 need a stormwater permit to comply with NPDES? Learn More.
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