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LAKES OF MISSION GROVE

PWS ID: TX0790423 · AUSTIN, Texas 78723-2476

LAKES OF MISSION GROVE serves 507 people in AUSTIN, Texas using Groundwater water sources. It has 37 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LAKES OF MISSION GROVE

LAKES OF MISSION GROVE is a private-owned community water system that delivers drinking water to 507 residents in AUSTIN, Texas (Fort Bend County) through 169 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 37 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 37 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 4 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. LAKES OF MISSION GROVE's 37 violations sit below the Texas average. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
507
Total Violations
37
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
169
County
Fort Bend
School/Daycare
No
MCL Violations
0
Monitoring Violations
37
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 4 2020
Atrazine MR 2 2009
LASSO MR 2 2009
Heptachlor MR 2 2009
Benzo(a)pyrene MR 2 2009
Chlordane MR 2 2009
Endrin MR 2 2009
BHC-GAMMA MR 2 2009
Di(2-ethylhexyl) phthalate MR 2 2009
Pentachlorophenol MR 2 2009
Simazine MR 2 2009
Toxaphene MR 2 2009
Heptachlor epoxide MR 2 2009
Di(2-ethylhexyl) adipate MR 2 2009
HEXACHLOROBENZENE MR 2 2009
Hexachlorocyclopentadiene MR 2 2009
Methoxychlor MR 2 2009
Nitrate MR 1 2011

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for LAKES OF MISSION GROVE.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID TX0790423 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Texas Drinking Water Authority

Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch is the primacy agency that licenses and inspects LAKES OF MISSION GROVE under EPA-delegated authority.

Open TX regulator portal

Source: Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2020 Lead and Copper Rule MR 4 SDWIS / TX0790423 / 5000
2011 Nitrate MR 1 SDWIS / TX0790423 / 1040
2009 Atrazine MR 2 SDWIS / TX0790423 / 2050
2009 LASSO MR 2 SDWIS / TX0790423 / 2051
2009 Heptachlor MR 2 SDWIS / TX0790423 / 2065
2009 Benzo(a)pyrene MR 2 SDWIS / TX0790423 / 2306
2009 Chlordane MR 2 SDWIS / TX0790423 / 2959
2009 Endrin MR 2 SDWIS / TX0790423 / 2005
2009 BHC-GAMMA MR 2 SDWIS / TX0790423 / 2010
2009 Di(2-ethylhexyl) phthalate MR 2 SDWIS / TX0790423 / 2039
2009 Pentachlorophenol MR 2 SDWIS / TX0790423 / 2326
2009 Simazine MR 2 SDWIS / TX0790423 / 2037
2009 Toxaphene MR 2 SDWIS / TX0790423 / 2020
2009 Heptachlor epoxide MR 2 SDWIS / TX0790423 / 2067
2009 Di(2-ethylhexyl) adipate MR 2 SDWIS / TX0790423 / 2035

How LAKES OF MISSION GROVE Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric LAKES OF MISSION GROVE Texas avg Federal benchmark
Total violations 37 101.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 22.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 93.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 507 4,524 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,351 regulated public water systems in Texas.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is LAKES OF MISSION GROVE water safe to drink? ▼
LAKES OF MISSION GROVE (PWS ID: TX0790423) has 37 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 507 people using Groundwater sources.
How many people does LAKES OF MISSION GROVE serve? ▼
LAKES OF MISSION GROVE serves 507 people in AUSTIN, Texas. It is a Private-owned system using Groundwater water sources with 169 service connections.
What type of violations does LAKES OF MISSION GROVE have? ▼
LAKES OF MISSION GROVE has 37 total violations: 0 health-based violations (MCL exceedances or treatment failures), 37 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LAKES OF MISSION GROVE water? ▼
No PFAS testing data is available for LAKES OF MISSION GROVE under the EPA's UCMR5 monitoring program.
What water source does LAKES OF MISSION GROVE use? ▼
LAKES OF MISSION GROVE uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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