Looking for a SWPPP consultant in St. Mary, KY? Describe your project once and up to three stormwater consultants who work in St. Mary and Marion County get back to you with a quote. It's free and there is no obligation.
St. Mary is home to about 140 people (2024 Census Bureau estimate), a stable community (+0.7% since 2020). With 180 people per sq mi, it is a semi-rural area. Subdivisions and commercial sites here need stormwater permit coverage before grading.
St. Mary at a glance
- Population (Census Bureau estimate, 2024)
- 140 (+0.7% since 2020)
- Rank in Kentucky
- 395th of 417 cities and towns
- Land area
- 0.8 sq mi
- Population density
- 180 people per sq mi (semi-rural)
- Type
- City (St. Mary city)
- Main county
- Marion County
What to check before hiring in St. Mary
- Permit: in Kentucky, check the state construction general permit.
- Local rules: St. Mary 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 St. Mary
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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 St. Mary
How much does a SWPPP cost in St. Mary, KY?
It depends on site size, phases and inspections. Describe your project: consultants who serve St. Mary 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 St. Mary 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.