These FAQs provide answers to common questions about the Stormwater Program.
Facilities subject to stormwater regulation by Clark County Water Quality do not need to obtain a County stormwater permit. However, industrial facilities may be required by the Nevada Division of Environmental Protection to obtain a Multi-Sector General permit. Please visit NDEP’s website for more information.
Facilities are inspected on an annual, periodic (2 – 5 years), or more frequent basis depending on regulatory status and compliance history.
It is preferred to have a facility manager present to address questions that may arise during the inspection.
If your facility does not conduct work or store material outdoors, and does not have the potential to discharge, you may qualify for an exemption from Clark County Water Quality inspections.
Construction sites subject to stormwater regulation by Clark County Water Quality do not need to obtain a County stormwater permit. However, construction sites may be required by the Nevada Division of Environmental Protection to obtain a Construction General permit. Please visit NDEP’s website for more information (including information on discharging groundwater).
Construction projects that meet regulatory criteria are inspected twice throughout the duration of the project or more frequently if they meet any of the following criteria; history of non-compliance, greater than 100-acres, proximity to major washes and/or impaired water bodies, or hillsides (slopes exceeding 12% grade).
It is preferred to have a site operator and/or third-party compliance contractor present to address questions that may arise during the inspection.
Clark County Water Quality does not currently require notification, though a Notice of Termination of a construction site’s Nevada Division of Environmental Protection Construction General Permit may be required. Please visit NDEP’s website for more information.
Post-Construction BMPs are permanent control measures installed to reduce pollution in stormwater runoff by filtering, infiltrating, settling, or trapping contaminants before they discharge from a site. See the Post-Construction Flyer for more information about post-construction BMPs.
To ensure the long-term maintenance of BMPs, Clark County Water Quality requests information regarding your facility’s maintenance plans/procedures to ensure the proper function of your post-construction BMPs.
Residential washing of vehicles at a residence is an allowable discharge under Clark County Code 24.40. Use the minimum amount of biodegradable soap and direct dirty water to landscaped areas where possible to prevent water from reaching the street. See Use a Commercial Car Wash Flyer for more information.
Residential homes connected to Clark County sanitary sewer should direct swimming pool/spa water into the home’s sewer cleanout. The cleanout is usually located in the front yard, close to the sewer line. An “S” on the front curb usually marks where the sewer line connects to the home. If the home is on a septic tank, de-chlorinate the pool water and discharge it to the gutter, taking care not to cause any downstream nuisance issues. See Proper Disposal of Pool and Spa Water Flyer for more information.
Do not perform cleaning activities in the street as the water does not receive treatment. Such activities should occur in indoor or outdoor sinks with an established sanitary sewer connection and in accordance with sewer discharge regulations. Please be aware that certain household chemicals have special handling and disposal requirements. See Household Hazardous Waste Guide for more information.
How Do I?
To report illicit discharges, call the Water Quality Hotline, (702) 668-8674, or complete the Report a Violation online form.
Please submit your scheduling request by contacting the Water Quality Team.