PlainWater
States → Ohio

AVON LAKE CITY PWS

PWS ID: OH4700311 · AVON LAKE, Ohio 44012

AVON LAKE CITY PWS serves 23,659 people in AVON LAKE, Ohio using Surface Water water sources. It has 21 recorded EPA violations, including 7 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: AVON LAKE CITY PWS

AVON LAKE CITY PWS is a local-owned community water system that delivers drinking water to 23,659 residents in AVON LAKE, Ohio (Lorain County) through 8,683 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 21 total violations for this system , of which 7 (33%) 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 2008.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 7 violations (TT, 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 Ohio, EPA tracks 4,181 public water systems serving 11,085,226 people, with 288,388 cumulative violations and 52,412 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. AVON LAKE CITY PWS's 21 violations sit below the Ohio average. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%). 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
23,659
Total Violations
21
Health-Based Violations
7
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
8,683
County
Lorain
School/Daycare
No
MCL Violations
0
Monitoring Violations
14
Treatment Tech Violations
7

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 7 2004
Interim Enhanced Surface Water Treatment Rule MR 3 2005
CYANIDE MR 3 2008
Arsenic MR 1 1985
Chromium MR 1 1985
Mercury MR 1 1985
Nitrate MR 1 1985
Selenium MR 1 1985
Cadmium MR 1 1985
Fluoride MR 1 1985
Barium MR 1 1985

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFOA 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 7/10/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 7/10/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/10/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFTA 7/10/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 7/10/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/10/2023 <0.006 µg/L 0.006 µg/L Not Detected
lithium 7/10/2023 <9 µg/L 9 µg/L Not Detected
PFDoA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 4/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 4/12/2024 <9 µg/L 9 µg/L Not Detected
PFDA 4/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 4/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 4/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 4/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 4/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 4/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 4/12/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 4/12/2024 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 4/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 4/12/2024 <0.007 µg/L 0.007 µg/L Not Detected
HFPO-DA 4/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 4/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 4/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 4/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 4/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 4/12/2024 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 4/12/2024 <0.005 µg/L 0.005 µg/L 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 AVON LAKE CITY PWS.

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 OH4700311 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Ohio Drinking Water Authority

Ohio EPA — Division of Drinking and Ground Waters is the primacy agency that licenses and inspects AVON LAKE CITY PWS under EPA-delegated authority.

Open OH regulator portal

Source: Ohio EPA — Division of Drinking and Ground Waters

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
2008 CYANIDE MR 3 SDWIS / OH4700311 / 1024
2005 Interim Enhanced Surface Water Treatment Rule MR 3 SDWIS / OH4700311 / 0300
2004 Surface Water Treatment Rule TT 7 SDWIS / OH4700311 / 0200
1985 Arsenic MR 1 SDWIS / OH4700311 / 1005
1985 Chromium MR 1 SDWIS / OH4700311 / 1020
1985 Mercury MR 1 SDWIS / OH4700311 / 1035
1985 Nitrate MR 1 SDWIS / OH4700311 / 1040
1985 Selenium MR 1 SDWIS / OH4700311 / 1045
1985 Cadmium MR 1 SDWIS / OH4700311 / 1015
1985 Fluoride MR 1 SDWIS / OH4700311 / 1025
1985 Barium MR 1 SDWIS / OH4700311 / 1010

How AVON LAKE CITY PWS Compares

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

Metric AVON LAKE CITY PWS Ohio avg Federal benchmark
Total violations 21 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 7 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 23,659 2,651 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,181 regulated public water systems in Ohio.

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 AVON LAKE CITY PWS water safe to drink? ▼
AVON LAKE CITY PWS (PWS ID: OH4700311) has 21 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 23,659 people using Surface Water sources.
How many people does AVON LAKE CITY PWS serve? ▼
AVON LAKE CITY PWS serves 23,659 people in AVON LAKE, Ohio. It is a Local-owned system using Surface Water water sources with 8,683 service connections.
What type of violations does AVON LAKE CITY PWS have? ▼
AVON LAKE CITY PWS has 21 total violations: 7 health-based violations (MCL exceedances or treatment failures), 14 monitoring/reporting violations, and 7 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in AVON LAKE CITY PWS water? ▼
No. AVON LAKE CITY PWS was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does AVON LAKE CITY PWS use? ▼
AVON LAKE CITY PWS 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.

Explore PlainWater

Water in Ohio

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Ohio

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
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.

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial