Does Allen, TX have its own stormwater management ordinance?

No. Allen, TX does not appear to have a local stormwater management ordinance, Texas state law applies instead. The rules summarized on this page come from TCEQ MS4 Program.

Key Facts Ordinance Text Full Breakdown Violations FAQ Sources More in Allen

Allen, TX Environmental Rules: Stormwater Management (2026)

Light Restrictions

Compiled from the official code textEditor Martyn O'NeillLast verified April 2026

Key Facts

Permit: TCEQ TXR040000 MS4
SWPPP Threshold: 1 acre disturbance
Illicit Discharge: Prohibited
Max Fine: 25,000 dollars per day

Summary

Allen operates under TCEQ MS4 Phase II permit (TXR040000). New development over 1 acre requires SWPPP, detention pond, and water quality BMPs. No discharge of pollutants to storm drains - only rain goes down the drain.

TPDES Stormwater Construction General Permit, TXR150000, which expires on March 5, 2028. The TCEQ will hold a stakeholder meeting for the renewal of the CGP on June 9, 2026, from 1:30-4:00 pm. Preliminary proposed changes to the general permit will be discussed in a presentation, and input from stakeholders will be gathered during and following this meeting.">The TCEQ has begun the process for the renewal of the TPDES Stormwater Construction General Permit, TXR150000, which expires on March 5, 2028. The TCEQ will hold a stakeholder meeting for the renewal of the CGP on June 9, 2026, from 1:30-4:00 pm. Preliminary proposed changes to the general permit will be discussed in a presentation, and input from stakeholders will be gathered during a

Source: TCEQ MS4 ProgramView official code

Full Breakdown

Allen Code Chapter 13 Stormwater enforces federal Clean Water Act through TCEQ TPDES. Construction sites need NOI filing, silt fence, inlet protection, and weekly inspections. Illicit discharge (car wash runoff, paint dumping, grass clippings in drain) prohibited. Annual stormwater report filed with TCEQ.

Violations & Fines

Illicit discharge: 500-25,000 dollars per day under federal CWA. Construction violations: stop-work, 1,000-2,000 dollars per day.

Frequently Asked Questions

Can I wash my car in the driveway in Allen?

Personal car washing with biodegradable soap is generally allowed, but avoid heavy runoff to the street. Commercial washing requires drainage to sanitary sewer.

Sources & Official References

[1]TCEQ MS4 Program

Other rules in Allen

Parking Rules: Overnight ParkingLight Restrictions Noise Ordinances: Construction HoursLight Restrictions Erosion ControlLight Restrictions Flood Elevation RequirementsSome Restrictions Flood ZonesSome Restrictions Noise Ordinances: Leaf Blower RulesFew Restrictions Noise Ordinances: Decibel LimitsFew Restrictions Noise Ordinances: Barking DogsLight Restrictions Parking Rules: Commercial & Oversized VehiclesLight Restrictions

All Allen rules

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