Looking for a SWPPP consultant in Mahnomen, MN? Describe your project once and up to three stormwater consultants who work in Mahnomen and Mahnomen County get back to you with a quote. It's free and there is no obligation.
Mahnomen is home to about 1,216 people (2024 Census Bureau estimate), a shrinking community (−2.6% since 2020). With 1,149 people per sq mi, it is a suburban area. Subdivisions and commercial sites here need stormwater permit coverage before grading.
Mahnomen at a glance
- Population (Census Bureau estimate, 2024)
- 1,216 (−2.6% since 2020)
- Rank in Minnesota
- 331st of 855 cities and towns
- Land area
- 1.1 sq mi
- Population density
- 1,149 people per sq mi (suburban)
- Type
- City (Mahnomen city)
- Main county
- Mahnomen County
What to check before hiring in Mahnomen
- Permit: in Minnesota, check the state construction general permit.
- Local rules: Mahnomen may add its own erosion control permit.
- Records: keep inspection reports on site.
- Price drivers: site size, phases, inspection frequency and duration.
Useful official resources
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EPA: construction stormwater
Official information and guidance.
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EnviroCert: CPESC
Official information and guidance.
Services available in Mahnomen
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SWPPP and permit coverage
Preparation of the SWPPP and notice of intent under the construction general permit.
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Stormwater inspections
Routine and post-storm inspections with reports for the permit.
Frequently asked questions in Mahnomen
How much does a SWPPP cost in Mahnomen, MN?
It depends on site size, phases and inspections. Describe your project: consultants who serve Mahnomen reply with a quote.
How long does it take?
Plans often take days to a couple of weeks, plus the permit review.
What happens at the end?
A notice of termination is filed once the site is stabilized.
Which stormwater consultants will contact me?
Up to three independent stormwater consultants who serve Mahnomen and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.