Katy vs Rosenberg
How do stormwater management rules compare between Katy, TX and Rosenberg, TX?
Rosenberg has fewer restrictions than Katy.
Katy, TX
Fort Bend County
Katy requires a stormwater pollution prevention plan and TPDES coverage for any construction site disturbing one or more acres, including post-construction BMPs maintained by the property owner.
View full Katy rules →Rosenberg, TX
Fort Bend County
Rosenberg operates under TPDES General Permit TXR040000 as a small MS4, requiring local stormwater pollution controls, illicit discharge prohibitions, and construction-site runoff management within city limits.
View full Rosenberg rules →Key Facts Comparison
| Fact | Katy | Rosenberg |
|---|---|---|
| Threshold | 1 acre disturbed | - |
| Required permit | TPDES TXR150000 | - |
| Plan | SWPPP plus post-construction | - |
| Maintenance | Owner responsibility | - |
| Contact | Stormwater 281-391-4876 | - |
| MS4 permit | - | TPDES TXR040000 |
| Program scope | - | Six minimum measures |
| Illicit discharges | - | Prohibited |
| Authority | - | City Code and TCEQ |
Highlighted rows indicate differences between cities.
Katy FAQ
Does my single-lot home build need a SWPPP?
Only if it disturbs at least one acre or is part of a larger common plan of development. Smaller standalone lots typically don't trigger TPDES coverage in Katy.
Who maintains BMPs after construction?
The property owner is solely responsible for the operation and maintenance of structural and non-structural BMPs installed on their site, per Katy's stormwater article.
What if my project crosses the one-acre threshold mid-build?
You must stop, prepare and obtain SWPPP approval, and file TPDES coverage before continuing. Operating without coverage is a city and state violation.
Rosenberg FAQ
Can I wash chemicals or paint into a Rosenberg storm drain?
No. Discharging anything other than stormwater into the storm sewer system is prohibited under Rosenberg's MS4 program and may result in fines and cleanup orders.
Does my home project need stormwater controls?
Construction sites disturbing one or more acres must comply with state TPDES construction permits and Rosenberg's MS4 requirements for sediment and erosion controls.
Compare other topics
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