Las Vegas Valley
Municipal Stormwater Discharge Permit
Annual Report 2022 - 2023

This annual report for the 2022-2023 MS4 permit year to report to NDEP on the status of the MS4 program and to highlight compliance with the permit and SWMP.

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Only Rain in the storm drain.

Most of our rainwater travels untreated through gutters, storm drains, channels, washes and eventually into the major source of our drinking water - Lake Mead.

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All storm drains lead to lake mead.

Stormwater that falls in the Las Vegas Valley picks up pollutants and travels untreated to Lake Mead. Do your part to reduce stormwater pollution!

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About Stormwater Quality Management Committee

The Stormwater Quality Management Committee (SQMC) is a community partnership of the Clark County Regional Flood Control District and is committed to the development and implementation of stormwater pollution monitoring, control and outreach efforts within the Las Vegas Valley.

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City of North Las Vegas
City of Las Vegas
City of Henderson
Regional Flood Control District
Clark County

Events Schedule




Quarterly meeting of the SQMC


February 13, 2024 11:00 AM


Virtual Webex meeting



Below are some frequently asked questions about Las Vegas storm drains.

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What are the indicators of illegal/illicit discharges to the storm drain system?
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What types of discharges to the storm drain system are prohibited?
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What are the effects of stormwater pollution?
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Is there a difference between a storm sewer and a sanitary sewer?
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Is stormwater treated before entering Lake Mead?
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