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F0/100

YOSEMITE SPRING PARK UTIL CO — Water Quality Report 2026

Serving 5,300 people · California

Water Source
Groundwater
County
—
System ID
CA2010005
Violations
40

Contaminant Test Results

3 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
PFOS
0.008 µg/L0.004 µg/LOver Limit
PFOA
0.007 µg/L0.004 µg/LOver Limit
Lead (90th percentile)
0.008 mg/L0.015 mg/LAbove Goal

EPA Violation History

12

Violations (last 5yr)

2

Unresolved

7

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 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2022 – December 31, 2022Enforcement: Formal — state order issued
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2022 – September 30, 2022Enforcement: Formal — state order issued
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2022 – June 30, 2022Enforcement: Formal — state order issued
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2022 – March 31, 2022Enforcement: Formal — state order issued
TIER 3Resolved

Other violation

When: October 1, 2021 – December 31, 2021Enforcement: Formal — state order issued
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2021 – December 31, 2021Enforcement: Formal — state order issued
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2021Enforcement: Formal — state order issued
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2021Enforcement: Formal — state order issued
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2021 – September 30, 2021Enforcement: Formal — state order issued
TIER 3Resolved

Other violation

When: July 1, 2021 – September 30, 2021Enforcement: 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 YOSEMITE SPRING PARK UTIL CO

Is YOSEMITE SPRING PARK UTIL CO water safe to drink?

YOSEMITE SPRING PARK UTIL CO water receives a grade of F (0/100), which is considered failing. 2 contaminant(s) exceed EPA legal limits and 40 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has YOSEMITE SPRING PARK UTIL CO detected?

38 contaminants were tested in YOSEMITE SPRING PARK UTIL CO's water. Notable contaminants include PFOS, PFOA, Lead (90th percentile). 2 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).

Does YOSEMITE SPRING PARK UTIL CO have any EPA violations?

Yes, YOSEMITE SPRING PARK UTIL CO has 40 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MCL. 22 are health-based violations.

How many people does YOSEMITE SPRING PARK UTIL CO serve?

YOSEMITE SPRING PARK UTIL CO serves approximately 5,300 people, California.

What type of water does YOSEMITE SPRING PARK UTIL CO provide?

YOSEMITE SPRING PARK UTIL CO sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA2010005.

How does YOSEMITE SPRING PARK UTIL CO compare to other utilities in California?

YOSEMITE SPRING PARK UTIL CO scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our California state page for a full comparison of water systems.