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Terra Bella, CA Tap Water Quality 2026

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

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

Main Utility: Terra Bella Irrigation District - Tbt PWSID: CA5410038 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

Terra Bella 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
23 violations since 2015, 20 health-based
No violations currently open
Terra Bella's lead level vs. all California community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of California utilities
Population Served
2607
~804 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
23 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
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.07 MG/L 0.060 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.084 MG/L 0.060 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.093 MG/L 0.080 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.106 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.11 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.135 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.136 MG/L 0.080 mg/L 2016 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
TTHM MCL EXCEEDANCE 0.127 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.127 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.146 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.139 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.15 MG/L 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.131 MG/L 0.060 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.136 MG/L 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.115 MG/L 0.060 mg/L 2015 Resolved
Coliform (TCR) MCL EXCEEDANCE — 5% of samples 2015 Resolved
TTHM MCL EXCEEDANCE 0.144 MG/L 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.112 MG/L 0.060 mg/L 2015 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.103 MG/L 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.071 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

23 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 Terra Bella Irrigation District - Tbt
PWSID CA5410038
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 2,607
Service connections 804
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Terra Bella tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Terra Bella water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Terra Bella? ▼
Terra Bella Irrigation District - Tbt (PWSID CA5410038). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-10-31. No significant deficiencies were recorded.

What Should Terra Bella 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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