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Preston, TX Tap Water Quality 2026

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

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

Main Utility: Ridgecrest Water System PWSID: TX0910035 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 3.33 ppb, 22% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Preston earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 3.33 ppb — 22% of the federal action level
PFAS never sampled at this system
48 violations since 2015, 37 health-based
No violations currently open
Preston's lead level vs. all Texas community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 3.33 ppb — 22% of the federal action level
✓ Lower lead than 15% of Texas utilities
Population Served
1073
~656 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
48 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
22% of EPA action level
3.33 ppb
Action level: 15 ppb
The 90th-percentile lead result is 3.33 ppb, 22% 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)

ContaminantTypeMeasuredLimitPeriodStatus
Public Notice OTHER — — 2026 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 20 PCI/L 15 pCi/L 2025 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 21 PCI/L 15 pCi/L 2025 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 18 PCI/L 15 pCi/L 2025 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 16 PCI/L 15 pCi/L 2024 Archived
Public Notice OTHER — — 2023 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 16 PCI/L 15 pCi/L 2022 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 17 PCI/L 15 pCi/L 2022 Resolved
Public Notice OTHER — — 2022 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2022 Resolved
Public Notice OTHER — — 2021 Resolved
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
TTHM MCL EXCEEDANCE 0.091 MG/L 0.080 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.087 MG/L 0.060 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.083 MG/L 0.060 mg/L 2021 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 17 PCI/L 15 pCi/L 2021 Resolved
Public Notice OTHER — — 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.08 MG/L 0.060 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.081 MG/L 0.060 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2019 Resolved
Public Notice OTHER — — 2019 Resolved
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2018 Resolved
Public Notice OTHER — — 2018 Unaddressed
TTHM MCL EXCEEDANCE 0.12 MG/L 0.080 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.061 MG/L 0.060 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.138 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.136 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.132 MG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.141 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 0.064 MG/L 0.060 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.122 MG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.153 MG/L 0.080 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.077 MG/L 0.060 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.073 MG/L 0.060 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.125 MG/L 0.080 mg/L 2017 Resolved
Public Notice OTHER — — 2016 Resolved
TTHM MCL EXCEEDANCE 0.122 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.078 MG/L 0.060 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.078 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.091 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.088 MG/L 0.060 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.088 MG/L 0.060 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.078 MG/L 0.060 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.069 MG/L 0.060 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

48 violations are on record since 2015, of which 37 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Ridgecrest Water System
PWSID TX0910035
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 1,073
Service connections 656
Systems serving this area 5
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Preston tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 3.33 ppb, 22% of the action level.
Does Preston water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Preston? ▼
Ridgecrest Water System (PWSID TX0910035), one of 5 systems serving this area. Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2023-10-17. No significant deficiencies were recorded.

What Should Preston Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
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.
3
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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