stormwater bmps for SIC Code 4491

Stormwater BMPs for SIC Code 4491, Stormwater Permitting Guide

SIC Code 4491


2026 Stormwater Permit Compliance for SIC Code 4491 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 Sheet Flow Discharger Ontario Non-Governmental Organization (NGO) Numeric Action Level (NAL) Structural Controls Erosion Control BMPs New Discharge(r) Straw Wattles Trade Secret Best Available Technology Economically Achievable (BAT) Monitoring Requirements Storm Water Pollution Prevention Plan (SWPPP) North American Industrial Classification System (NAICS) Water Quality Based Effluent Limitation (WQBEL) Good Housekeeping BMPs Chain of Custody Effective Date National Pollutant Discharge Elimination System (NPDES) Industrial Materials Areas of Special Biological Significance (ASBS) Effluent Limitation State water Board Stormwater Technology Based Effluent Limitation (TBEL) No Exposure Certification (NEC) Turbidity Waste Discharge Identification Number (WDID) Notice of Non Applicability (NONA) Standard Industrial Classification (SIC) Storm Water Multiple Application and Report Tracking System (SMARTS) Clean Water Act (CWA) Effluent Limitations Guidelines (ELGs) Total Dissolved Solids (TDS) Industrial Storm wattles Water Quality Standards Third Party Environmental Lawsuit (TPEL) Drainage Area Wattle Best Management Practices (BMP) Field Measurements Numeric Action Level (NAL) Exceedance Stormwater Benchmarks Stormwater Discharge Points Regional Water Board Source New Source Performance Standards Division of Water Quality (DWQ) Numeric Effluent Limitation (NEL) State Water Resources Control Board (SWRCB) Plastic Materials Monitoring Implementation Plan pH Biochemical Oxygen Demand (BOD) New Source Performance Standards (NSPS) Best Conventional Pollutant Control Technology (BCT) Storm Water Discharge Associated with Industrial Activity Non Detect Notice of Intent (NOI) Effluent Legally Responsible Person (LRP) Stormwater Permit Total Maximum Daily Load (TMDL) Sediment Control BMPs Water Quality Objectives Total Suspended Solids (TSS) Stormwater Guarantee Exceedance Response Action (ERA) Natural Background Minimum Level Debris Toxicity Quality Assurance/Quality Control (QA/QC) Non stormwater Waters of the United States Erosion Multi Sector General Permit (MSGP) Scheduled Facility Operating Hours Operator Sedimentation Best Practicable Control Technology Currently Available (BPT) Total Organic Carbon (TOC) Oil and Grease (O&G) Flocculant Socks Municipal Separate Storm Sewer System (MS4) Notice of Termination (NOT) Runoff Control BMPs Stormwater Drainage Storm Water Systems (SWS) Sediment Method Detection Limit Detected Not Quantifiable Qualifying Storm Event (QSE) Run-on Qualified Industrial Storm water Practitioner (QISP) New Industrial General Permit Northern California Southern California Non Storm Water Discharges (NSWD) Wattles Facility Permit Registration Documents (PRDs) Storm Wattles Industrial General Permit (IGP) Storm wattle Third Party Environmental Group (TPEG) United States Environmental Protection Agency (U.S. EPA) Scrap Metal Permit and more.

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Do businesses with sic code 4491 need a stormwater permit to comply with NPDES? Learn More.

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