Municipal Separate Stormsewer System Permit (MS4)


Support for small MS4s and large MS4s including:

  • Minimum Control Measures (MCM) support

    • Illicit discharge detection and elimination (IDDE), planning and execution

    • Stormwater BMP facility inspections (for post construction stormwater management)

      • VADEQ Stormwater BMP Inspector certified​

      • Confined Space Entry Certified

    • Public education and outreach

    • Public involvement and participation

    • Erosion and Sediment Control (ESC) inspection support for construction site stormwater runoff control

      • Maryland State Highway Administration Yellow Card and Maryland Department of the Environment Green Card

    • Pollution Prevention and Good Housekeeping audits and training

    • Annual reporting support

    • TMDL planning, Watershed Implementation Plans, Chesapeake Bay and local TMDLs, Impervious Acre Treated (IAT)

Industrial stormwater permit (12-SW, 12-SW-A, VAR05, MSGP)


Support for federal facilities, state, county and local governments, school systems, universities, wastewater treatment plants (WWTPs), landfills, recycling facilities, compositing facilities and private industrial sites

  • Complete, system-wide audits

  • Stormwater pollution prevention plans (SWPPP, P3) and updates

  • Annual trainings for SWPPP team and general staff

  • Testing for SWPPP team members and site staff

  • Annual and quarterly inspections

  • Stormwater sampling

  • Stormwater BMP treatment facility inspections

  • Stormwater BMP treatment facility conceptual designs and prioritization to meet TMDLs and Chesapeake Bay Restoration requirements / impervious cover treatment requirements

Other Services

  • Maryland Forest Stand Delineations, Qualified Professional

  • Forest Conservation Plans, Qualified Professional

  • Stream benthic invertebrate sampling (MD DNR MBSS Certified)

  • Steam physical habitat assessments (MD DNR MBSS Certified)

  • Stream restoration crediting analysis

  • White papers, state-of-the-science reports, literature reviews

  • English to Spanish translations for Spanish-speaking community

Clean Streams, a Limited Liability Company