GRAND HARBOR WSC

Compiled by PlainEnviro Editorial, Environmental Data Editorial Team · July 13, 2026

PWSID: TX2490070 · Chico, TX · Serves 360 people

Health Violations

GRAND HARBOR WSC has 125 health-based violations out of 125 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served

360

Total Violations

125

Health Violations

125

Source Type

Surface Water

GRAND HARBOR WSC (PWSID TX2490070) is a cws water system drawing from a surface water source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 360 people in Chico, TX, and is subject to primacy enforcement by the Texas drinking-water program.

The system's federal compliance record contains 125 total violations, with 125 classified as health-based (MCL exceedances or treatment-technique failures). 3 distinct contaminants have been cited, including Total Trihalomethanes (TTHM), Haloacetic Acids (HAA5), Gross Alpha. Recorded violations span 2016–2025.

A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Texas state drinking-water program's public portal.

System Details

EPA ID (PWSID): TX2490070
System Type: CWS
Water Source: Surface Water
Location: Chico, TX
Population Served: 360
Health Violations: Yes (125)

What contaminants are in this water system?

Contaminant	Violations	Health-Based
Total Trihalomethanes (TTHM)	95	95
Haloacetic Acids (HAA5)	29	29
Gross Alpha	1	1

Violation History (125)

Contaminant	Type	Health	Date	Enforcement
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2025	-
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2025	-
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2025	635
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2025	634
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2025	632
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2025	-
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2025	638
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2025	-
Gross Alpha	TT	Yes	Oct 17, 2024	616
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	603
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	625
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	-
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2024	605
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2024	627
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	582
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	533
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	582
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	-
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2024	585
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2024	535
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2024	585
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2024	-
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2024	-
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2024	587
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2024	517
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2024	587
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	584
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	519
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	584
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	489
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	589
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	489
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	481
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	-
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	481
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	591
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	481
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	471
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	471
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	593
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	467
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	462
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	467
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	467
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	595
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	467
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	506
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	448
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	467
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	506
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	467
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	508
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	440
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	508
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	425
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	467
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	504
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	425
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	504
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	421
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	467
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	421
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	467
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	396
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	467
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	467
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2021	398
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2021	467
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2021	467
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2021	400
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2021	467
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2021	467
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2021	402
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2021	467
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2021	467
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2021	416
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2021	416
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2021	404
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2021	467
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2021	467
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2020	406
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2020	467
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2020	467
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2020	418
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2020	418
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2020	267
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2020	467
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2020	467
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2020	341
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2020	341
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2020	252
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2020	467
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2020	467
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2020	341
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2020	341
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2020	341

Showing 100 of 125 violations.

Frequently Asked Questions

Is GRAND HARBOR WSC water safe to drink?

GRAND HARBOR WSC has 125 health-based violations out of 125 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed. The system uses surface water water as its source.

How many people does GRAND HARBOR WSC serve?

GRAND HARBOR WSC serves 360 people in Chico, TX. It is classified as a CWS water system.

What violations does GRAND HARBOR WSC have?

GRAND HARBOR WSC has 125 total violations on record spanning 2016–2025. 125 are health-based violations involving contaminants exceeding EPA limits.

What contaminants have been found in GRAND HARBOR WSC water?

Violations have been recorded for 3 contaminants. The most frequent: Total Trihalomethanes (TTHM), Haloacetic Acids (HAA5), Gross Alpha.

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About This Data

Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

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

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