EPA-regulated facilities in Williamson County, TX

There are 4,398 EPA-regulated facilities inside Williamson County, Texas. The most common kinds are water discharge (3,933), hazardous waste (333), drinking water systems (72). 10 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 35 have a violation on record. Penalties over the last five years total $2.9M across 35 sites.

Open the map of Williamson County

4,398facilities in the county

10in significant noncompliance

35with a violation on record

$2.9Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	333
Large quantity generators	12
Small quantity generators	114
Transporters	10
Chemical (RMP/TRI)	71
Superfund	1
Air emissions	62
Major sources	8
Minor sources	9
Water discharge	3,933
Major permits	17
Minor permits	3,873
Drinking water systems	72
Greenhouse gas reporters	2
Data centers	4
Scrap yards	1
Recycling centers	5

A facility enrolled in several programs counts once in the total and once in each of its categories.

In significant noncompliance

The EPA's designation for its most serious or persistent violations, as of the latest data.

CITY OF FLORENCE WWTP 529 HAYDON LANE, FLORENCE, TX, 76527 Significant noncompliance · $20k in penalties
CITY OF BARTLETT TX Significant noncompliance
CITY OF FLORENCE TX Significant noncompliance
FLORA WWTP 0.8 MILE WEST OF THE INT OF CR 101 & 160, HUTTO, TX, 76574 Significant noncompliance
NAMELESS HOLLOW CONDOMINIUMS-PLANT 551 S IH35 STE 150, ROUND ROCK, TX, 78664 Significant noncompliance
CR 234 QUARRY 5861 COUNTY ROAD 234, JARRELL, TX, 76537 Significant noncompliance
CITY OF GRANGER WWTP 101 LAMB ST, APROX 1300 FT S FMR 971 & 1 MI E, GRANGER, TX, 76530 Significant noncompliance
RONALD REAGAN CBP 25999 RONALD REAGAN BLVD, GEORGETOWN, TX, 78633 Significant noncompliance
FLORENCE QUARRY FROM THE INTERSECTION OF CR 231 AND FM 2843, TURN, FLORENCE, TX, 76527 Significant noncompliance
APACHE STONE QUARRY - FIREFLY 787 COUNTY ROAD 231, FLORENCE, TX, 76527 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

BRUSHY CREEK REGIONAL SYSTEM 3939 E PALM VALLEY BLVD, ROUND ROCK, TX, 78665 $356k in penalties
BRUSHY CREEK REGIONAL WASTEWATER SYSTEM - EAST 3939 PALM VALLEY BLVD, ROUND ROCK, TX, 78665 $356k in penalties
HOME DEPOT STORE 6585 2700 E WHITESTONE BLVD, CEDAR PARK, TX, 78613 $285k in penalties
HOME DEPOT STORE 504 2551 S IH 35, ROUND ROCK, TX, 78664 $285k in penalties
HOME DEPOT STORE 509 11301 LAKELINE BLVD, AUSTIN, TX, 78717 $285k in penalties

Superfund sites

AMASIA COVE MERCURY RELEASE 8215 AMASIA COVE, AUSTIN, TX, 78729

Data centers

GEORGETOWN DATA CENTER 201 BLUE RIDGE DR, GEORGETOWN, TX, 786267873
HUTTO DATA CENTER CAMPUS EAST SIDE OF COUNTY ROAD 132, APPROX. 0.27 MI S OF, HUTTO, TX, 78634
SABEY DATA CENTER AUSTIN BLDG B NE OF AW GRIMES BLVD AND LOUIS HENNA BLVD INTERSEC, ROUND ROCK, TX, 78664
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Towns in Williamson County

Bordering counties

Reading these numbers

These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. The Data page explains where each record comes from and how it can mislead.