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INYO COUNTY PWD - LONE PINE — Water Quality Report 2026

Serving 1,835 people · California

Water Source
Purchased Groundwater
County
—
System ID
CA1410009
Violations
13

Contaminant Test Results

EPA Violation History

8

Violations (last 5yr)

3

Unresolved

1

Health-Related

TIER 3Unresolved

Reporting violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 17, 2024Rule: Ground Water RuleVerify on EPA.gov
TIER 2Unresolved

Treatment technique violation

When: October 17, 2024Rule: Ground Water RuleVerify on EPA.gov
TIER 3Unresolved

Violation related to Consumer Confidence Report

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2024 – January 31, 2024Rule: Consumer Confidence RuleEnforcement: Formal — state order issuedVerify on EPA.gov
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2023 – June 27, 2024Enforcement: Formal — state order issued
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About INYO COUNTY PWD - LONE PINE

Is INYO COUNTY PWD - LONE PINE water safe to drink?

INYO COUNTY PWD - LONE PINE water receives a grade of A (83/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.

What contaminants has INYO COUNTY PWD - LONE PINE detected?

1 contaminants were tested in INYO COUNTY PWD - LONE PINE's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does INYO COUNTY PWD - LONE PINE have any EPA violations?

Yes, INYO COUNTY PWD - LONE PINE has 13 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 1 are health-based violations.

How many people does INYO COUNTY PWD - LONE PINE serve?

INYO COUNTY PWD - LONE PINE serves approximately 1,835 people, California.

What type of water does INYO COUNTY PWD - LONE PINE provide?

INYO COUNTY PWD - LONE PINE sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA1410009.

How does INYO COUNTY PWD - LONE PINE compare to other utilities in California?

INYO COUNTY PWD - LONE PINE scores 83/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our California state page for a full comparison of water systems.