STORMWATER NPDES

WET has completed permitting and inspection services for construction sites and industrial facilities across Montana and surrounding states

WET provides the following types of National Pollutant Discharge Elimination System (NPDES) permitting services:

  • General Permit for Stormwater Discharge Associated with Construction Activities
  • When a construction project disturbs one or more total acres of land, General Permit for Stormwater Discharges Associated with Construction Activity is needed.
  • WET provides Stormwater Pollution Prevention Plan (SWPPP) Preparer and Administrator Certification/Recertification training, as approved by the State of Montana.
  • Multi-Sector General Permit (MSGP) for Stormwater Discharges Associated with Industrial Activities: Industrial sites such as landfills, wastewater treatment plants, and mines require MSGP stormwater permit coverage. This process involves submitting a Notice of Intent (NOI) and a SWPPP. Industries must comply with both general and sector specific requirements detailed in the permit.

WATER/WASTEWATER NPDES PROJECTS