Recertify your commercial stormwater credits
Credit recertification tiers
Each site will be assigned a credit recertification tier. The tier is based on the site's annual credit amount.
You will receive a letter telling you which tier you are in.
Recertification documents you need to submit
For all applicants
You must submit the following documents to complete the recertification process:
An application with complete site details:
- Address
- Owner
- Contact information
A map showing the site conditions, including:
- The total impervious area.
- The size and location of stormwater facilities.
- The flow path from the impervious areas to the stormwater facilities.
Operations and Maintenance (O&M) Plan:
- A plan that shows how your stormwater system is maintained.
- View a sample O&M Plan
Documentation of Best Management Practices (BMPs)
- These can be photos or videos.
Annual inspection and maintenance records
- The records must show that inspections were done at least annually, or more often if the O&M Plan requires it.
Basic Salt Management Plan
Applicants must also submit the following documents for their assigned credit tier.
Some documents may need to be completed or signed by a licensed or certified professional.
Tier 1 applicants
The City will provide you with a checklist or simple form. This is for assessing small sites or BMPs.
Tier 2 applicants
You must provide:
A map detailing the drainage for the entire site, including:
- All infrastructure relating to stormwater BMPs. Examples include:
- Inlets
- Outlets
- Storm pipes
- Manholes
- Underdrains
- Any connection points to the City of Minneapolis stormwater system or discharge offsite.
- Functional assessment of the BMPs.
- This must show that the BMPs are functioning as designed.
- Documents must be signed by a certified professional.
Tier 3 applicants
You must provide:
- Everything listed in Tier 2.
- A licensed professional must verify the hydraulic and hydrologic modeling.
- If previous modeling exists, you may submit it. A certified professional must verify that the site conditions have not changed.
Tier 4 applicants
You must provide:
- Everything listed in Tier 2 and Tier 3.
- A certification from a licensed professional that the stormwater facilities:
- Have been constructed.
- Continue to meet the standards of the stormwater credits program.
Community engagement
Virtual Q&A Sessions
We’re hosting drop-in virtual Q&A sessions, join us to ask your questions about recertification:
- Monday, May 5, 2025: 2:00 pm - 3:00 pm
- Wednesday, May 7, 2025: 10:00 am - 11:00 am