Collierville, TN Environmental Rules: Erosion Control (2026)

Section 152.209 of the Collierville Code of Ordinances governs stabilization of any area where natural vegetative cover has been partially or wholly cleared by development activities. Stabilization measures start as soon as possible in portions of the site where work has stopped, and temporary or permanent stabilization must be finished no later than 14 days after construction activity in that portion has temporarily or permanently ceased. Steep slopes get a tighter clock of seven days. Permanent stabilization with perennial vegetation, or another permanently stable, non-eroding surface, replaces temporary measures as soon as practicable, and reseeding must be accompanied by straw mulch or its equivalent until the cover crop is established over 90% of the seeded area. Every stabilized area must show survival of a minimum of 70% of the cover crop for the year after stabilization, and revegetation repeats in successive years until that is achieved. A landscaping plan must also say who maintains the vegetation after construction.

The paperwork sits upstream. Under § 152.204 a person must provide proof of coverage (NOC) under the state construction general permit before any land disturbing activity, and under § 152.205 must prepare and implement a Stormwater Pollution Prevention Plan sealed by a registered professional engineer or landscape architect licensed in the state. Section 152.211 puts routine inspections on the owner/operator, and maintenance needs must be fixed before the next storm event and in no case more than seven days after the need is identified. Section 152.212 requires a notice posted near the main entrance with the NOC tracking number and a local contact, and on-site records including a rain gauge, twice weekly inspection reports and the inspector's Fundamentals of Erosion Prevention and Sediment Control Level 1 certification. The Town Engineer inspects active and inactive sites under § 152.210.