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Cisco, TX Tap Water Quality 2026

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

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

Main Utility: City Of Cisco PWSID: TX0670001 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS was sampled but not enough times for a compliance determination.

B

Cisco earns a B for water quality

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

Lead: not detected
PFAS sampled, too few results to judge
48 violations since 2015, 20 health-based
No violations currently open
Cisco's lead level vs. all Texas community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Texas utilities
Population Served
3850
~2769 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
48 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2025 Resolved
Public Notice OTHER — — 2022 Resolved
Revised Total Coliform Rule TREATMENT TECHNIQUE — — 2022 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.1 MG/L 0.080 mg/L 2022 Resolved
Chlorite MCL EXCEEDANCE 1.3 MG/L 1.0 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Resolved
Public Notice OTHER — — 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2020 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2019 Resolved
Public Notice OTHER — — 2019 Resolved
Chlorine dioxide DISINFECTANT LEVEL 0.9 MG/L 0.8 mg/L 2019 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2019 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2019 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2019 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.113 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.144 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.143 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.141 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.115 MG/L 0.080 mg/L 2017 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2017 Resolved
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2017 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2016 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2016 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2016 Archived
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.095 MG/L 0.080 mg/L 2016 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2015 Resolved
TTHM MCL EXCEEDANCE 0.099 MG/L 0.080 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.091 MG/L 0.080 mg/L 2015 Resolved
Public Notice OTHER — — 2015 Resolved
Public Notice OTHER — — 2015 Resolved
Coliform (TCR) MCL EXCEEDANCE — 5% of samples 2015 Resolved
TTHM MCL EXCEEDANCE 0.117 MG/L 0.080 mg/L 2015 Resolved
Public Notice OTHER — — 2015 Resolved
TTHM MCL EXCEEDANCE 0.111 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

48 violations are on record since 2015, of which 20 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility City Of Cisco
PWSID TX0670001
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 3,850
Service connections 2,769
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Cisco tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Cisco water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Cisco? ▼
City Of Cisco (PWSID TX0670001), one of 2 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-07-18. No significant deficiencies were recorded.

What Should Cisco 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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