Looking for a SWPPP consultant in Twin Valley, MN? Describe your project once and up to five stormwater consultants who work in Twin Valley and Norman County get back to you with a quote. It's free and there is no obligation.
Twin Valley is home to about 697 people (2024 Census Bureau estimate), a shrinking community (−3.1% since 2020). With 815 people per sq mi, it is a semi-rural area. Subdivisions and commercial sites here need stormwater permit coverage before grading.
Twin Valley at a glance
- Population (Census Bureau estimate, 2024)
- 697 (−3.1% since 2020)
- Rank in Minnesota
- 422nd of 855 cities and towns
- Land area
- 0.9 sq mi
- Population density
- 815 people per sq mi (semi-rural)
- Type
- City (Twin Valley city)
- Main county
- Norman County
What to check before hiring in Twin Valley
- Permit: in Minnesota, check the state construction general permit.
- Local rules: Twin Valley 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 Twin Valley
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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 Twin Valley
How much does a SWPPP cost in Twin Valley, MN?
It depends on site size, phases and inspections. Describe your project: consultants who serve Twin Valley 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 five independent stormwater consultants who serve Twin Valley 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.