Carter, TX Tap Water Quality 2026

Water quality report for Carter, TX — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Carter's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Walnut Creek Sud PWSID: TX1840008 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead is 1.20 ppb, 8% of the action level and no violations are open. No PFAS was detected.

Carter earns a B for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 1.20 ppb — 8% of the federal action level

PFAS tested, none detected

47 violations since 2015, 38 health-based

No violations currently open

Carter's lead level vs. all Texas community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: 1.20 ppb — 8% of the federal action level

✓ Lower lead than 72% of Texas utilities

Population Served

793

~10822 connections

Water Source

Surface water

Drawn from surface water — SDWIS source code SW

Active Violations

47 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

8% of EPA action level

1.20 ppb

Action level: 15 ppb

The 90th-percentile lead result is 1.20 ppb, 8% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

Contaminant	Type	Measured	Limit	Period	Status
Public Notice	OTHER	—	—	2026	Unaddressed
Public Notice	OTHER	—	—	2025	Unaddressed
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2024	Unaddressed
LEAD AND COPPER RULE REVISIONS	TREATMENT TECHNIQUE	—	—	2024	Resolved
LEAD AND COPPER RULE REVISIONS	REPORTING FAILURE	—	—	2024	Resolved
TTHM	MCL EXCEEDANCE	0.081 MG/L	0.080 mg/L	2020	Resolved
TTHM	MCL EXCEEDANCE	0.084 MG/L	0.080 mg/L	2020	Resolved
TTHM	MCL EXCEEDANCE	0.085 MG/L	0.080 mg/L	2020	Resolved
Chlorite	MCL EXCEEDANCE	1.1 MG/L	1.0 mg/L	2019	Resolved
TTHM	MCL EXCEEDANCE	0.083 MG/L	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	0.082 MG/L	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	0.083 MG/L	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	0.097 MG/L	0.080 mg/L	2017	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.062 MG/L	0.060 mg/L	2017	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.088 MG/L	0.060 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	0.122 MG/L	0.080 mg/L	2017	Resolved
Public Notice	OTHER	—	—	2017	Resolved
TTHM	MCL EXCEEDANCE	0.14 MG/L	0.080 mg/L	2017	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.1 MG/L	0.060 mg/L	2017	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2016	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2016	Resolved
TTHM	MCL EXCEEDANCE	0.148 MG/L	0.080 mg/L	2016	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.109 MG/L	0.060 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	0.153 MG/L	0.080 mg/L	2016	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.119 MG/L	0.060 mg/L	2016	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.121 MG/L	0.060 mg/L	2016	Archived
TTHM	MCL EXCEEDANCE	0.154 MG/L	0.080 mg/L	2016	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.115 MG/L	0.060 mg/L	2016	Archived
TTHM	MCL EXCEEDANCE	0.138 MG/L	0.080 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	0.132 MG/L	0.080 mg/L	2016	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.113 MG/L	0.060 mg/L	2016	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.105 MG/L	0.060 mg/L	2016	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.103 MG/L	0.060 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	0.126 MG/L	0.080 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	0.116 MG/L	0.080 mg/L	2016	Resolved
Public Notice	OTHER	—	—	2015	Resolved
Public Notice	OTHER	—	—	2015	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.085 MG/L	0.060 mg/L	2015	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.083 MG/L	0.060 mg/L	2015	Resolved
TTHM	MCL EXCEEDANCE	0.119 MG/L	0.080 mg/L	2015	Resolved
TTHM	MCL EXCEEDANCE	0.119 MG/L	0.080 mg/L	2015	Resolved
TTHM	MCL EXCEEDANCE	0.114 MG/L	0.080 mg/L	2015	Resolved
TTHM	MCL EXCEEDANCE	0.094 MG/L	0.080 mg/L	2015	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.092 MG/L	0.060 mg/L	2015	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.092 MG/L	0.060 mg/L	2015	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.068 MG/L	0.060 mg/L	2015	Archived
TTHM	MCL EXCEEDANCE	0.101 MG/L	0.080 mg/L	2015	Resolved

Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

47 violations are on record since 2015, of which 38 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Walnut Creek Sud

PWSID TX1840008

Water source Surface water — Drawn from surface water — SDWIS source code SW

Population served 793

Service connections 10,822

Systems serving this area 1

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Carter tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open. Lead is 1.20 ppb, 8% of the action level.

Does Carter water have PFAS? ▼

It was tested for the six regulated PFAS compounds and none were detected.

Who supplies water to Carter? ▼

Walnut Creek Sud (PWSID TX1840008). Surface water. Drawn from surface water — SDWIS source code SW

When was this system last inspected? ▼

It was last inspected on 2024-11-21. No significant deficiencies were recorded.

What Should Carter Residents Do?

Read your annual water report

Your supplier publishes a Consumer Confidence Report each July covering the prior year.

Check for a lead service line

Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.

Flush before drinking

If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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