Stormwater permittee guidance & resources

Find your general stormwater permit guidance

Guidance for submitting e-NOIs and DMRs

Learn how to apply for a permit (using an e-NOI , electronic notice of intent) or submit a discharge monitoring report (DMR) or other documents electronically through the WQWebPortal.

Stormwater manuals

Stormwater manuals may help certain permittees implement and manage stormwater permit technical requirements. We provide our manuals, approved equivalent manuals, and other related manuals.

How to choose a lab

Find guidance about choosing an environmental laboratory.