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Check Your Water Quality

Enter your ZIP code to see which public water systems serve your area and whether any drinking water violations have been recorded.

Violations Found

Multiple health-based drinking water violations on record. Review the details below for specific contaminants and systems.

26 Water Systems
2,878 Total Violations
228 Health-Based
28,133 Population Served

Water Systems in 77002

26 active public water systems registered in ZIP code 77002. Click a system name to see its full violation history.

System Name Type Source ZIP Population Violations Health-Based
WINDFERN FOREST UTILITY DISTRICT Community Surface Water Purchased 77002 7,170 37 26
MONTGOMERY COUNTY MUD 9 Community Ground Water 77002 5,949 21 3
HARRIS COUNTY MUD 179 Community Surface Water Purchased 77002 5,115 3 0
HARRIS COUNTY MUD 221 Community Ground Water 77002 4,839 0 0
HARRIS COUNTY FACILITY & PROPERTY MGMT Non-Transient Non-Community Ground Water 77002 3,000 735 24
MIDLAND EAST RV PARK Transient Non-Community Ground Water 77002 420 0 0
GOLDEN PASS LNG TERMINAL Non-Transient Non-Community Surface Water Purchased 77002 416 67 6
ST LEO THE GREAT CATHOLIC PARISH Transient Non-Community Ground Water 77002 200 126 6
HARRIS COUNTY LEADERSHIP ACADEMY Community Ground Water 77002 125 311 3
TARGA TRAIN 11 ADMIN BUILDING Non-Transient Non-Community Ground Water 77002 110 0 0
ST DOMINIC CATHOLIC CHURCH Non-Transient Non-Community Ground Water 77002 100 61 3
LPI ANGLE ROAD Non-Transient Non-Community Ground Water 77002 100 16 0
HILCORP CARTER CREEK GAS PLANT Non-Transient Non-Community Surface Water 77002 80 58 20
HARRIS COUNTY SHERIFFS SUBSTATION Non-Transient Non-Community Ground Water 77002 60 255 4
HOUSTON SOUTHWEST AIRPORT Non-Transient Non-Community Ground Water 77002 57 87 7
NEXT WAVE ENERGY PARTNERS Non-Transient Non-Community Ground Water 77002 51 8 0
KINDER MORGAN SOUTHTEX TREATERS Non-Transient Non-Community Ground Water 77002 48 11 0
GULF COAST FRACTIONATORS Non-Transient Non-Community Ground Water 77002 48 86 1
CAMP KAPPE Transient Non-Community Ground Water 77002 42 77 0
COPANO PROCESSING HOUSTON CENTRAL GAS PL Non-Transient Non-Community Ground Water 77002 40 80 71
MAVERICK RESOURCES Non-Transient Non-Community Ground Water 77002 38 104 0
BLOCK 31 GAS PLANT Non-Transient Non-Community Ground Water 77002 25 97 30
BLUE CREEK BUILDERS Non-Transient Non-Community Ground Water 77002 25 408 4
STEPHENS RANCH WIND FARM Non-Transient Non-Community Ground Water Purchased 77002 25 10 4
CIBOLO CREEK RANCH Transient Non-Community Ground Water 77002 25 220 16
HARRIS COUNTY ESD 11 Non-Transient Non-Community Ground Water 77002 25 0 0

How It Works

1

Enter Your ZIP Code

Type your 5-digit ZIP code above. We'll look up all EPA-registered public water systems that serve your area.

2

Review Results

See how many water systems serve your ZIP code, their violation history, and whether any health-based violations have been recorded.

3

Check Details

Click any water system to see its full record, every violation, contaminant, compliance date, and enforcement action from the EPA database.

Frequently Asked Questions

This tool searches the EPA's Safe Drinking Water Information System (SDWIS) for all public water systems registered in your ZIP code. It shows their violation history, including health-based violations where contaminant levels exceeded EPA limits.

A health-based violation means a water system exceeded the EPA's Maximum Contaminant Level (MCL) for a specific substance, such as lead, arsenic, nitrates, or coliform bacteria. These violations indicate a potential risk to drinking water safety.

Some areas rely on private wells rather than public water systems. Private wells are not tracked in the EPA database. You may also try a nearby ZIP code, as water system service areas don't always align exactly with ZIP code boundaries.

No EPA violations on record is a good sign, but it doesn't guarantee water safety. Some contaminants may not be tested for, and violations only reflect issues that were detected and reported. For the most accurate information, request a Consumer Confidence Report from your local water utility.