For Water or Wastewater Emergencies call 512-218-5555, 24 hours a day, 7 days a week.


When it goes down the drain it’s gone for good right? Wrong! The City’s wastewater (sewer) system is designed to dispose of water, toilet paper, and body fluid – anything else, blocks the flow and EVERYTHING that went down, comes back up…into your home, street, creeks and anywhere else it can.

If it isn’t body fluid or toilet paper, It Doesn’t Go… Don’t Stop the Flow


If It Can’t Flow, It Overflows…sewer backup

An overflow is a very nasty, costly mess that has to be cleaned up and paid for immediately. This can be devastating to property owners, renters, and businesses as these expenses are generally not covered by homeowners insurance.
Overflows result in:
  • Property damage
  • Plumbing problems
  • Nasty cleanup
  • Replacement of material goods
  • Health issues

From the Street, to the Creek… Drainage ditch


Illicit Discharge

When sewage overflows in the street, it goes down the storm drains and into to the nearest creek, lake, or other body of water. No filter. No treatment. Just straight into the bodies of water you swim in, boat on, fish from, and well, you get the drift.


Storm drains, you know those openings along the curb you’re terrified of falling into or the caged hole in the middle of the parking lot you just know you’ll drop your keys into, are designed to help alleviate flooding by draining stormwater (rainwater from storms) off streets and parking lots. Contrary to popular belief, when stormwater or anything else goes in the storm drain, it flows directly into the nearest body of water, no treatment, no filtration.

To report a suspected illicit discharge, please contact stormwater staff or call 512-218-7046.

Can it be Flushed?

There are many misconceptions on what you can and cannot flush, but as a general rule: If it isn’t body fluid or toilet paper, DO NOT FLUSH IT!  Even if it’s small or the package reads “flushable,” it can cause significant problems for you and the City.

Common items flushed and why they should NOT be:

Wipes No Wipes in the Pipes! Even those labeled “flushable”, they are too thick and do not disintegrate easily.
Paper Towels, Napkins, and Tissue
Designed to absorb moisture and stay together when wet, not break down.
Grease, Oils and FatsCan it…Don’t Drain It! Grease may go in as liquid, but as soon as it hits the drain, it cools and becomes a pipe-clogging wax. Pour leftover grease in a can then toss in the trash. Request a FREE Cease-the-Grease kit with a can lid, by emailing Don’t Stop the Flow. Learn more at Cease the Grease.
Feminine Hygiene ProductsDesigned to absorb moisture and expand which prevents safe passage through your pipes.
Animal Training PadsConstructed of a waterproof film that prevents liquid from passing through and of a super-absorbent polymer and fluff pulp, which turns liquid into gel. These do not break down in water and can cause major blockages.
Cotton Balls and SwabsThey do not break down in water, instead they gather together and are difficult to dislodge.
Cat LitterMade from clay and sand, two things that should NEVER be flushed. Cat waste also contains toxins and parasites that should not be in our water system.
CondomsEasy to flush, but not so easy on the wastewater system. Condoms can inflate like balloons and cause fairly destructive obstructions.
MedicationWastewater treatment plants are not designed to remove chemicals found in drugs. These dangerous chemicals get pumped into the lakes and streams, contaminating water supplies and wildlife downstream. How to Dispose of Medication; Disposal Safety Guide; Round Rock Police hosts Drug Take Back Days in the Spring and Fall, check the City’s events page for details.
DiapersMade from a toxic plastic designed to expand when it becomes wet.
Dental FlossOnce flushed, it wraps around objects in the pipeline, making tiny clogs bigger in an instant.
Cigarette ButtsFull of incredibly toxic chemicals that end up in the water supply.
Band-aidsMade of a non-biodegradable plastic that is terrible for the environment and causes clogs.
PetsGoldfish are commonly flushed, but small rodents (hamsters and gerbils) are also found in the wastewater system. They’re sturdy and they create clogs; consider a proper burial.
FoodAlthough biodegradable, it doesn’t break down fast so it can lump together and cause clogs.
HairLike floss, it tangles and catches things, creating clogs.

Back to top

Wastewater System

Collection System

The City of Round Rock’s wastewater collection system is made up of over 300 miles of collection lines. These lines ultimately go to the Brushy Creek Regional Wastewater Treatment Plant either directly or through larger diameter regional interceptor lines. The Brushy Creek Regional Wastewater Treatment System is jointly owned and operated by the Cities of Round Rock, Cedar Park and Austin. The City of Round Rock has a collection system rehabilitation program that includes cleaning and videoing the collection system, as well as inspecting and correcting “problem” areas that require regular maintenance. This program is funded through water and wastewater utility funds.

Lift Stations

The City of Round Rock currently owns and operates 12 lift stations that pump wastewater to gravity sewer mains or to the Brushy Creek Regional Wastewater Treatment Plant.

Wastewater Treatment

Wastewater treatment for the City of Round Rock takes place at the Brushy Creek Regional Wastewater Treatment Plant (BCRWWTP), located at 3939 East Palm Valley Blvd., Round Rock, TX 78665

The City’s wastewater collection system is currently covered under the Wastewater Discharge Permit held by the Cities of Round Rock, Cedar Park, and Austin for the BCRWWTP. This facility was recently re-rated for an average maximum flow of 25 million gallons per day from the plant’s regional customers. The regional customers include the Cities of Round Rock, Cedar Park, Leander and Austin, as well as the Fern Bluff and Brushy Creek Municipal Utility Districts.

If you have any questions or concerns please call 512-218-2000.

Texas Commission on Environmental Quality

The Texas Commission on Environmental Quality (TCEQ) is the environmental agency for the state.

Back to top

Contact Us
Billing Questions512-218-5460 
General Information512-218-5555 
Grease Package512-218-3273Amanda Taylor
Hazardous Waste Disposal512-218-5554Kyle Kuenstler
Permit Information512-218-2000Ashley Medel
Rebate Programs512-671-2872Jessica Woods
Sewer Backups (24 hours)512-218-5555 
Storm Drain Flooding512-218-7046stormwater@roundrocktexas.gov