Sanitary Sewer &
Storm Drain Systems

What Are The Differences and Why Does It Matter?

Two Underground System

In the Las Vegas Valley, there are two systems of drainage. The Sanitary Sewer or Wastewater System, and the Storm Drain System. The Sanitary Sewer System takes household wastewater (such as wastewater from sinks, toilets, washers, etc.) and carries it through a home's plumbing connecting to an underground sewer pipe. The storm drain system redirects rainwater from roadways, drop inlets, washes, channels, and detention basins to the Las Vegas Wash.

Storm Drain System

The Storm Drain System carries the discharge from city streets and routes it into curbside catch basins. From there, it enters a completely separate underground system from the sanitary sewer.

Sewer Drain System

A sanitary sewer is an underground system for transporting sewage from houses and commercial buildings (but not stormwater) to treatment facilities for treatment.

What Is Storm Drain Pollution?

Most of our rainwater travels through gutters, storm drains, channels, washes and eventually into the major source of our drinking water - Lake Mead. The largest source of stormwater pollution in Las Vegas Valley results from every day activities. The most common pollutants are:

Trash

Fast Foot Wrappers

Cigarette Butts

Motor Oil

Antifreeze

Pesticides

Styrofoam Cups

Fertilizers

Sediment

Sewage Overflow

These pollutants are picked up as water from rain, hoses, sprinklers, etc. drains from streets, parking lots, and lawns to the storm drain system consisting of catch basins, pipes, and open channels throughout Las Vegas Valley. Polluted urban runoff entering the storm drain system is conveyed straight to the Las Vegas Wash untreated. Basically, anything dumped or dropped on the ground or in the gutter contributes to stormwater pollution.

PLEASE HELP TO REPORT POLLUTION

Sanitary Sewer &
Storm Drain Systems

What Are The Differences and Why Does It Matter?

Two Underground System

In the Las Vegas Valley, there are two systems of drainage. The Sanitary Sewer or Wastewater System, and the Storm Drain System. The Sanitary Sewer System takes household wastewater (such as wastewater from sinks, toilets, washers, etc.) and carries it through a home's plumbing connecting to an underground sewer pipe. The Storm Sewer System redirects rainwater from roadways, drop inlets, washes, channels, and detention basins to the Las Vegas Wash.

Storm Drain System

On the other hand, and as seen in the graphic below, the Storm Drain System carries the discharge from city streets and routes it into curbside catch basins. From there, it enters a completely separate underground system.

Sewer Drain System

A sanitary sewer is an underground system for transporting sewage from houses and commercial buildings (but not stormwater) to treatment facilities for treatment.

What Is Storm Drain Pollution?

Most of our rainwater travels through gutters, storm drains, channels, washes and eventually into the major source of our drinking water - Lake Mead. The largest source of stormwater pollution in Southern Nevada results from every day activities. The most common pollutants are:

Trash

Fast Foot Wrappers

Cigarette Butts

Motor Oil

Antifreeze

Pesticides

Styrofoam Cups

Fertilizers

Sewage Overflow

These pollutants are picked up as water from rain, hoses, sprinklers, etc. drains from streets, parking lots, and lawns to the storm drain system consisting of catch basins, pipes, and open channels throughout Las Vegas and Southern Nevada. Polluted urban runoff entering the storm drain system is conveyed straight to the Las Vegas Wash untreated.Basically, anything dumped or dropped on the ground or in the gutter contributes to stormwater pollution.

Please Help to Report Pollution