PlainWater

ERSKINE CREEK WC

PWS ID: CA1510009 · SHAFTER, California 93263

ERSKINE CREEK WC serves 2,500 people in SHAFTER, California using Groundwater water sources. It has 18 recorded EPA violations, including 10 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ERSKINE CREEK WC

ERSKINE CREEK WC is a private-owned community water system that delivers drinking water to 2,500 residents in SHAFTER, California (Kern County) through 1,131 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 18 total violations for this system , of which 10 (56%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 8 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 10 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across California, EPA tracks 7,249 public water systems serving 42,404,883 people, with 153,308 cumulative violations and 63,983 health-based violations on record. About 89% of systems in the state carry at least one violation, and state-wide the average per system is 21.1 violations. ERSKINE CREEK WC's 18 violations sit below the California average. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
2,500
Total Violations
18
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
1,131
County
Kern
School/Daycare
No
MCL Violations
10
Monitoring Violations
8
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 10 2015
Coliform (TCR) MR 2 2003
Nitrate MR 2 2003
Asbestos MR 2 1995
TTHM MR 1 2021
Total Haloacetic Acids (HAA5) MR 1 2021

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for ERSKINE CREEK WC.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CA1510009 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

California Drinking Water Authority

California State Water Resources Control Board — Division of Drinking Water is the primacy agency that licenses and inspects ERSKINE CREEK WC under EPA-delegated authority.

Open CA regulator portal

Source: California State Water Resources Control Board — Division of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2021 TTHM MR 1 SDWIS / CA1510009 / 2950
2021 Total Haloacetic Acids (HAA5) MR 1 SDWIS / CA1510009 / 2456
2015 Coliform (TCR) MCL 10 SDWIS / CA1510009 / 3100
2003 Coliform (TCR) MR 2 SDWIS / CA1510009 / 3100
2003 Nitrate MR 2 SDWIS / CA1510009 / 1040
1995 Asbestos MR 2 SDWIS / CA1510009 / 1094

How ERSKINE CREEK WC Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric ERSKINE CREEK WC California avg Federal benchmark
Total violations 18 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 10 8.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 64.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,500 5,850 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,249 regulated public water systems in California.

Federal MCL reference — Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is ERSKINE CREEK WC water safe to drink?
ERSKINE CREEK WC (PWS ID: CA1510009) has 18 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,500 people using Groundwater sources.
How many people does ERSKINE CREEK WC serve?
ERSKINE CREEK WC serves 2,500 people in SHAFTER, California. It is a Private-owned system using Groundwater water sources with 1,131 service connections.
What type of violations does ERSKINE CREEK WC have?
ERSKINE CREEK WC has 18 total violations: 10 health-based violations (MCL exceedances or treatment failures), 8 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ERSKINE CREEK WC water?
No PFAS testing data is available for ERSKINE CREEK WC under the EPA's UCMR5 monitoring program.
What water source does ERSKINE CREEK WC use?
ERSKINE CREEK WC uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial