Missouri Stormwater-General regulations & environmental compliance analysis

Missouri Stormwater-General: What you need to know

Governing Law and Regulations

Missouri Clean Water Law: Missouri Revised Statutes (Mo. Rev. Stat.) 644.006 to 644.150

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National Pollutant Discharge Elimination System (NPDES) permits: 10 Missouri Code of State Regulations (CSR) 20-6.010 to 20-6.020

Water quality standards: 10 CSR 20-7.031

Stormwater regulations: 10 CSR 20-6.200

Regulatory Agencies

Missouri Department of Natural Resources (DNR) Division of Environmental Quality Water Pollution Control Program

Missouri Clean Water Commission (CWC)

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Missouri follows the federal permitting regulations for stormwater discharges, including those from industrial facilities, construction activities, and municipal separate storm sewer systems (MS4s). In Missouri, these National Pollutant Discharge Elimination System (NPDES) permits are called Missouri State Operating Permits. See the national section STORMWATER—GENERAL for more information on the federal program and the state sections STORMWATER—INDUSTRIAL FACILITIES, STORMWATER—CONSTRUCTION ACTIVITIES, and STORMWATER—MUNICIPALITIES for information on the state requirements for these specific types of stormwater discharges.

Administration and enforcement. DNR's Water Pollution Control Program is responsible for the administration and enforcement of the stormwater discharge permit regulations in Missouri.

State Requirements


In Missouri, stormwater discharges are separated into those related to industrial, construction, and municipal sectors. Permit approvals are subject to standards associated with the receiving ...

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