Looking for a SWPPP consultant in Plymouth, MN? Describe your project once and up to three stormwater consultants who work in Plymouth and Hennepin County get back to you with a quote. It's free and there is no obligation.
Plymouth is home to about 78,551 people (2024 Census Bureau estimate), a shrinking community (−3.0% since 2020). With 2,401 people per sq mi, it is a suburban area. Subdivisions and commercial sites here need stormwater permit coverage before grading.
Plymouth at a glance
- Population (Census Bureau estimate, 2024)
- 78,551 (−3.0% since 2020)
- Rank in Minnesota
- 8th of 855 cities and towns
- Land area
- 33 sq mi
- Population density
- 2,401 people per sq mi (suburban)
- Type
- City (Plymouth city)
- Main county
- Hennepin County
What to check before hiring in Plymouth
- Permit: in Minnesota, check the state construction general permit.
- Local rules: Plymouth 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 Plymouth
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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 Plymouth
How much does a SWPPP cost in Plymouth, MN?
It depends on site size, phases and inspections. Describe your project: consultants who serve Plymouth 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 Plymouth 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.