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Community Water System · PWS CA3310016

Hemet, City Of

Hemet, California 92545 - drinking water served from surface water sources to 33,828 people, tracked in EPA SDWIS and UCMR5.

33,828
People served
53
EPA violations
33
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 53 drinking-water violations at Hemet, City Of, 62% of them health-based - above the California per-system average.

53
Total EPA violations on record
62%
Health-based (MCL / treatment failure)
33,828
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Hemet, City Of

Hemet, City Of is a local-owned community water system that delivers drinking water to 33,828 residents in Hemet, California (Riverside County) through 9,589 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 53 total violations for this system , of which 33 (62%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 14 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Nitrate, recorded in 31 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%).

Hemet, City Of's 53 violations sit above the California average.

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
33,828
Total Violations
53
Health-Based Violations
33
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
9,589
County
Riverside
School/Daycare
No
MCL Violations
33
Monitoring Violations
14
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MCL 31 2014
Total Haloacetic Acids (HAA5) MR 5 2022
TTHM MR 5 2022
Lead and Copper Rule MR 2 2007
Nitrate MR 2 2009
Public Notice Other 2 2011
Fluoride MCL 2 2011

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 174 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 9/16/2024 <8.00 ppt 8.00 ppt Not Detected
PFHxA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 9/16/2024 <2.00 ppt 2.00 ppt Not Detected
9Cl-PF3ONS 9/16/2024 <2.00 ppt 2.00 ppt Not Detected
PFNA 9/16/2024 <4.00 ppt 4.00 ppt Not Detected
11Cl-PF3OUdS 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 9/16/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 9/16/2024 <6.00 ppt 6.00 ppt Not Detected
PFBS 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
ADONA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 9/16/2024 <4.00 ppt 4.00 ppt Not Detected
PFOA 9/16/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/16/2024 <4.00 ppt 4.00 ppt Not Detected
PFDoA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 9/16/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpS 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
NFDHA 9/16/2024 <20.00 ppt 20.00 ppt Not Detected
PFEESA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
PFMBA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFTA 9/16/2024 <8.00 ppt 8.00 ppt Not Detected
PFMPA 9/16/2024 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
ADONA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/16/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/16/2024 <5.00 ppt 5.00 ppt Not Detected
NFDHA 9/16/2024 <20.00 ppt 20.00 ppt Not Detected
PFHxA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/16/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/16/2024 <4.00 ppt 4.00 ppt Not Detected
PFNA 9/16/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 9/16/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/16/2024 <3.00 ppt 3.00 ppt Not Detected

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 Hemet, City Of.

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 CA3310016 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 Hemet, City Of 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
2022 Total Haloacetic Acids (HAA5) MR 5 SDWIS / CA3310016 / 2456
2022 TTHM MR 5 SDWIS / CA3310016 / 2950
2014 Nitrate MCL 31 SDWIS / CA3310016 / 1040
2011 Public Notice Other 2 SDWIS / CA3310016 / 7500
2011 Fluoride MCL 2 SDWIS / CA3310016 / 1025
2009 Nitrate MR 2 SDWIS / CA3310016 / 1040
2007 Lead and Copper Rule MR 2 SDWIS / CA3310016 / 5000

How Hemet, City Of Compares

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

Metric Hemet, City Of California avg Federal benchmark
Total violations 53 21.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 33 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 33,828 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Hemet, City Of water safe to drink?
Hemet, City Of (PWS ID: CA3310016) has 53 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 33,828 people using Surface Water sources.
How many people does Hemet, City Of serve?
Hemet, City Of serves 33,828 people in Hemet, California. It is a Local-owned system using Surface Water water sources with 9,589 service connections.
What type of violations does Hemet, City Of have?
Hemet, City Of has 53 total violations: 33 health-based violations (MCL exceedances or treatment failures), 14 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Hemet, City Of water?
No. Hemet, City Of was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Hemet, City Of use?
Hemet, City Of uses Surface Water 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.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.