State coverage plus local programs in a fast-growing corridor, including the quirk that Spring Hill straddles two counties and follows the city's rules across the line.
Maury County has become one of the busiest growth corridors in Middle Tennessee, anchored by Spring Hill and the General Motors plant and by steady development around Columbia. Building here means the state permit plus a local program, and Maury has a genuine quirk: its fastest-growing city sits in two counties at once.
Answer a few questions about your site and get a field-ready SWPPP built to TDEC permit TNR100000, ready to review, sign, and submit.
Get startedAnywhere in Tennessee, a project that disturbs one acre or more (including a lot inside a larger common plan of development) needs coverage under the Construction General Permit (TNR100000): a written SWPPP, a Notice of Intent filed in MyTDEC (form CN-0940), twice-weekly inspections documented on form CN-1173, and a Notice of Termination at closeout. If that is new to you, start with Do I need a SWPPP in Tennessee? and how to file your NOI.
The City of Spring Hill spans both Maury and Williamson counties, so a Spring Hill project follows the city's stormwater program regardless of which county line it falls on. Spring Hill has updated its stormwater ordinance to stay aligned with TDEC and its MS4 permit, maintains a water-quality buffer zone policy, and funds its program through a stormwater utility charged by equivalent residential unit. If your site is in Spring Hill, work from the city's rules first and confirm the county context second.
The City of Columbia, the county seat, administers its own municipal stormwater program. Outside the cities, the Maury County Building and Zoning office and the Maury County Regional Planning Commission handle permitting and subdivision review (the county's subdivision regulations were revised in late 2025), coordinating stormwater review as part of plan approval. One helpful regional contact: the TDEC Columbia Environmental Field Office is the state field office that covers this area for construction stormwater questions.
Pin down your jurisdiction first, Spring Hill, Columbia, or unincorporated Maury County, because that determines the local ordinance, the submittal process, and the reviewer. Your SWPPP should meet the state permit and support whichever local plan review applies, and if you are in Spring Hill, remember the city rule governs even across the county line. Verify current fees and submittals with the office directly, since local specifics here change with the growth.
SWPPP Builder generates a field-ready Tennessee SWPPP built to the state Construction General Permit in about an hour. Pricing is flat and posted up front: $349 for a standard non-engineered contractor SWPPP, $99 for a single-family homebuilder plan (built on TDEC form CN-1249), and $499 when your site needs engineered or pre-approved plans. That is a fraction of the $1,500 to $5,000 a consultant typically charges, and you keep the file in your account to reuse and update as the job changes.
Spring Hill spans both counties, and a Spring Hill project follows the city's own stormwater program regardless of which county the parcel sits in. Confirm the city process first, then the county context.
The Maury County Building and Zoning office and the Maury County Regional Planning Commission handle permitting and subdivision review, coordinating stormwater review as part of plan approval. The City of Columbia runs its own program.
The TDEC Columbia Environmental Field Office is the state field office covering the Maury County area for construction stormwater matters. The statewide TDEC line can also route you there.
Yes. Any site of one acre or more, or a lot in a larger common plan, needs state Construction General Permit coverage regardless of the local program. The local permit is in addition to, not instead of, the state SWPPP.