Do I need a stormwater permit for a small site?

It depends on disturbance size and discharge to waters of the U.S.; check City requirements and the Nevada NDEP construction permit criteria.

Where do I file an NOI or NOT?

NOI and NOT for the NPDES construction general permit are submitted per NDEP instructions on the state permit page; city permit applications go to City Building Services or Public Works stormwater program.

What happens if runoff pollutes a wash?

Enforcement may include remediation, fines, stop-work orders, and referral to state enforcement for NPDES violations.

Las Vegas Stormwater Permit for Construction - Checklist

Environmental Protection Nevada 4 Minutes Read · published February 08, 2026

In Las Vegas, Nevada, construction projects that disturb soil or alter drainage commonly must control stormwater runoff to protect local washes and the Las Vegas Valley drainage system. This guide explains which permits apply, the local and state offices to contact, practical application steps, common violations, and enforcement pathways. Consult the City of Las Vegas stormwater program and the Nevada construction NPDES permit when preparing your Stormwater Pollution Prevention Plan (SWPPP) and Notices of Intent/Termination.City stormwater program^[1] and the Nevada NDEP construction permit pages detail state and municipal roles.NDEP construction general permit^[2]

Who enforces stormwater rules for construction

Primary enforcement is shared: the City of Las Vegas Public Works — Stormwater Quality oversees municipal ordinance compliance for work inside city limits, while the Nevada Division of Environmental Protection administers the state NPDES construction general permit for discharges to waters of the U.S. Building and grading permit authorities enforce related permit conditions during plan review and inspections.Building permits and inspections^[3]

Required permits and when they apply

City stormwater permits or project approvals: required for grading or construction that may affect stormwater within Las Vegas city limits.
Confirm city-level requirements early during plan review.
NPDES Construction General Permit (state-issued): applies when construction results in stormwater discharges to waters of the U.S.; typically requires a Notice of Intent (NOI) and a SWPPP.
Timing: submit permit applications and SWPPP documentation before starting earth-disturbing activities.
Inspections and compliance monitoring occur during construction and at project close-out.

Penalties & Enforcement

Fine amounts and monetary penalties for stormwater violations in Las Vegas are administered by the City and via state NDEP enforcement for NPDES violations. Exact dollar amounts for city fines are not specified on the cited city stormwater program page; see the City program page for enforcement procedures.^[1]

Fine amounts: not specified on the cited page for municipal fines; NDEP civil penalties for NPDES violations are set by state and federal law and are not detailed on the cited NDEP permit landing page.^[1]
Escalation: first-offence, repeat, and continuing violations procedures are described in enforcement sections but specific escalation amounts or ranges are not specified on the cited pages.^[2]
Non-monetary sanctions: stop-work orders, remediation orders, permit suspension, and referral to court are used as enforcement tools; see building permit and stormwater program procedures for methods to request compliance or file complaints.^[3]
Enforcer and complaints: City of Las Vegas Public Works — Stormwater Quality handles city complaints and investigations; NDEP enforces the construction general permit for discharges to waters of the U.S.^[1]
Appeals/review: formal appeal routes and time limits for municipal enforcement actions are governed by the City administrative code and permit appeal procedures; specific time limits are not specified on the cited pages and should be confirmed with the issuing office.^[3]

If you receive a notice, act quickly; time limits for appeals and corrective actions are strict.

Applications & Forms

The most common documents are the Stormwater Pollution Prevention Plan (SWPPP) and state Notices of Intent (NOI) and Notices of Termination (NOT) under the Nevada NPDES construction general permit. The City also requires application materials during building and grading permit submission; specific form names, numbers, fees, and submission addresses are listed on the cited city and state pages.^[1]^[2]^[3]

How-To

Confirm whether your project is inside Las Vegas city limits and subject to city stormwater controls.
Prepare a SWPPP describing erosion and sediment controls, pollution prevention measures, and inspection schedules.
Submit the City required stormwater application(s) with grading/building permits and submit the state NOI if the NPDES construction general permit applies.
File the NOI before starting earth-disturbing work when required.
Implement best management practices (BMPs) on site, keep inspection records, and correct deficiencies promptly.
Schedule and pass municipal inspections; submit a Notice of Termination (NOT) to the state after final stabilization when applicable.

FAQ

Do I need a stormwater permit for a small site?: It depends on disturbance size and discharge to waters of the U.S.; check City requirements and the Nevada NDEP construction permit criteria.
Where do I file an NOI or NOT?: NOI and NOT for the NPDES construction general permit are submitted per NDEP instructions on the state permit page; city permit applications go to City Building Services or Public Works stormwater program.
What happens if runoff pollutes a wash?: Enforcement may include remediation, fines, stop-work orders, and referral to state enforcement for NPDES violations.

Key Takeaways

Start SWPPP and permit planning before grading or demolition.
Maintain records of inspections and corrective actions on site.
Contact City stormwater staff and NDEP early for permit guidance.