Valley Ford, CA Tap Water Quality 2026

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

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

Main Utility: Valley Ford Water Association PWSID: CA4900568 Updated: 2026 Q2

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1 violation currently open

Lead is 9.00 ppb, 60% of the action level. PFAS has never been sampled at this system.

Valley Ford earns a D for water quality

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

Lead: 9.00 ppb — 60% of the federal action level

PFAS never sampled at this system

54 violations since 2015, 52 health-based

1 violation currently open

Valley Ford's lead level vs. all California community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: 9.00 ppb — 60% of the federal action level

✓ Lower lead than 5% of California utilities

Population Served

~18 connections

Water Source

Groundwater

Drawn from wells — SDWIS source code GW

Active Violations

1 open of 54 since 2015

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

60% of EPA action level

9.00 ppb

Action level: 15 ppb

The 90th-percentile lead result is 9.00 ppb, 60% 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
Nitrate	MCL EXCEEDANCE	14.4 MG/L	10 mg/L	2025	Archived
Nitrate	MCL EXCEEDANCE	14.7 MG/L	10 mg/L	2025	Archived
Nitrate	MCL EXCEEDANCE	14.4 MG/L	10 mg/L	2025	Archived
LEAD AND COPPER RULE REVISIONS	TREATMENT TECHNIQUE	—	—	2024	Unaddressed
LEAD AND COPPER RULE REVISIONS	REPORTING FAILURE	—	—	2024	Unaddressed
Nitrate	MCL EXCEEDANCE	14.2 MG/L	10 mg/L	2024	Archived
Nitrate	MCL EXCEEDANCE	11.7 MG/L	10 mg/L	2024	Archived
Nitrate	MCL EXCEEDANCE	11.7 MG/L	10 mg/L	2024	Archived
Nitrate	MCL EXCEEDANCE	11 MG/L	10 mg/L	2024	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.069 MG/L	0.060 mg/L	2023	Archived
Nitrate	MCL EXCEEDANCE	11.5 MG/L	10 mg/L	2023	Archived
Nitrate	MCL EXCEEDANCE	13 MG/L	10 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.114 MG/L	0.080 mg/L	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.07 MG/L	0.060 mg/L	2023	Archived
Nitrate	MCL EXCEEDANCE	11 MG/L	10 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.105 MG/L	0.080 mg/L	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.064 MG/L	0.060 mg/L	2023	Archived
Nitrate	MCL EXCEEDANCE	15 MG/L	10 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.095 MG/L	0.080 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.148 MG/L	0.080 mg/L	2022	Archived
Nitrate	MCL EXCEEDANCE	20 MG/L	10 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.149 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.139 MG/L	0.080 mg/L	2022	Archived
Nitrate	MCL EXCEEDANCE	28 MG/L	10 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.131 MG/L	0.080 mg/L	2021	Archived
Nitrate	MCL EXCEEDANCE	17 MG/L	10 mg/L	2021	Archived
Nitrate	MCL EXCEEDANCE	17 MG/L	10 mg/L	2021	Archived
Nitrate	MCL EXCEEDANCE	17 MG/L	10 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.182 MG/L	0.080 mg/L	2020	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.061 MG/L	0.060 mg/L	2020	Archived
Nitrate	MCL EXCEEDANCE	23 MG/L	10 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.185 MG/L	0.080 mg/L	2020	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.071 MG/L	0.060 mg/L	2020	Archived
Nitrate	MCL EXCEEDANCE	23 MG/L	10 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.105 MG/L	0.080 mg/L	2020	Archived
Nitrate	MCL EXCEEDANCE	23 MG/L	10 mg/L	2020	Archived
Nitrate	MCL EXCEEDANCE	26 MG/L	10 mg/L	2019	Archived
Groundwater Rule	TREATMENT TECHNIQUE	—	—	2019	Resolved
Nitrate	MCL EXCEEDANCE	15 MG/L	10 mg/L	2019	Archived
Nitrate	MCL EXCEEDANCE	20 MG/L	10 mg/L	2019	Archived
Groundwater Rule	TREATMENT TECHNIQUE	—	—	2019	Resolved
Groundwater Rule	TREATMENT TECHNIQUE	—	—	2019	Resolved
Nitrate	MCL EXCEEDANCE	12 MG/L	10 mg/L	2018	Archived
Nitrate	MCL EXCEEDANCE	12 MG/L	10 mg/L	2018	Archived
Nitrate	MCL EXCEEDANCE	15 MG/L	10 mg/L	2018	Archived
—	OTHER	—	—	2018–2019	Resolved
Nitrate	MCL EXCEEDANCE	23 MG/L	10 mg/L	2018	Archived
Nitrate	MCL EXCEEDANCE	13 MG/L	10 mg/L	2017	Archived
Nitrate	MCL EXCEEDANCE	13 MG/L	10 mg/L	2017	Archived
Nitrate	MCL EXCEEDANCE	18 MG/L	10 mg/L	2016	Archived
Nitrate	MCL EXCEEDANCE	13.375 MG/L	10 mg/L	2016	Archived
Nitrate	MCL EXCEEDANCE	12.875 MG/L	10 mg/L	2016	Archived
Nitrate	MCL EXCEEDANCE	18 MG/L	10 mg/L	2016	Archived
Nitrate	MCL EXCEEDANCE	120 MG/L	10 mg/L	2015	Archived

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

1 violation remains open, out of 54 recorded since 2015 (52 health-based).

About the Main Water System

Utility Valley Ford Water Association

PWSID CA4900568

Water source Groundwater — Drawn from wells — SDWIS source code GW

Population served 56

Service connections 18

Systems serving this area 1

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Valley Ford tap water safe to drink? ▼

No federal limit is exceeded on record. 1 violation(s) remain open. Lead is 9.00 ppb, 60% of the action level.

Does Valley Ford 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 Valley Ford? ▼

Valley Ford Water Association (PWSID CA4900568). Groundwater. Drawn from wells — SDWIS source code GW

When was this system last inspected? ▼

It was last inspected on 2025-04-02. No significant deficiencies were recorded.

What Should Valley Ford Residents Do?

Consider a filter certified for lead

Look for NSF/ANSI 53 certification for lead reduction.

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.

Follow the open violation

This system has an unresolved violation. Contact the supplier for its corrective-action schedule.

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