Mansfield, TX SWPPP & Stormwater Requirements
Updated August 2026
Mansfield's program meets you at the site notice — which notice, and who posts it, depends on the size of the disturbance.
What does Mansfield require for SWPPP compliance?
Small sites carry paper too. In Mansfield, for sites less than 5 acres, a Small Construction Site Notice must be sent to the city and posted on site. The notice is the city's first checkpoint — on the fence before anyone asks for it.
On large sites, both operators post
Bigger sites double the paper. In Mansfield, both primary and secondary operators must post a Large Construction Site Notice on site. Two roles, two postings — a general contractor and an owner both have notice obligations on the same fence line, and a missing one reads as a program gap to anyone who walks the gate.
The state permit still applies
The city's steps sit on top of the state's, not in place of them. A stormwater pollution prevention plan (SWP3) must be prepared and implemented before construction activities begin. TXR150000's standard schedule requires construction site inspections at least once every 14 calendar days and within 24 hours of the end of a storm event of 0.5 inches or greater. City process gets the project to the starting line; the state permit's obligations run for the life of the disturbance.
Inspections and the record
The operator owns the inspection record from first disturbance to final stabilization. Terradyne provides routine SWPPP inspection reports with cloud-based client access. See SWPPP Inspections for how the program works, and Silt Fence Installation for the perimeter the reviewers will look at first.
Check before you mobilize
Ordinances and city standards get revised; confirm the current documents with the city before you mobilize. For other North Texas cities, start at Local Compliance.
Frequently Asked Questions
What site notice does a small Mansfield site need?
Under five acres of disturbance, a Small Construction Site Notice — sent to the city and posted on the site.
Who posts the notice on a large Mansfield site?
Both the primary and the secondary operator — Mansfield's program names the two roles explicitly, and the notice obligation covers them both.
Does the state permit still apply inside Mansfield?
Yes — the notices are the city's layer on top of the state program, whose obligations run from the first disturbance to final stabilization. The sections above lay out both layers.
Request a bid
Send your Mansfield project's plans to bids@terradynegroup.com or call (214) 878-7392 for SWPPP and erosion control support. Tell us the acreage and the schedule, and we will bring the plan, the controls, and the inspection cadence the city expects.