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ONEIDA #1 OR SITE #1

PWS ID: 055295703 · ONEIDA, 05 54155

ONEIDA #1 OR SITE #1 serves 4,322 people in ONEIDA, 05 using Groundwater water sources. It has 104 recorded EPA violations, including 0 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: ONEIDA #1 OR SITE #1

ONEIDA #1 OR SITE #1 is a native american-owned community water system that delivers drinking water to 4,322 residents in ONEIDA, 05 through 651 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 104 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 103 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 11 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 12 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across 05, EPA tracks 113 public water systems serving 144,290 people, with 19,546 cumulative violations and 443 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 173 violations. ONEIDA #1 OR SITE #1's 104 violations sit below the 05 average. Statewide, 5 of 13 UCMR5-tested systems have reported PFAS detections (38.5%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
4,322
Total Violations
104
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
651
School/Daycare
No
MCL Violations
0
Monitoring Violations
103
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 11 2024
Coliform (TCR) MR 5 2010
DICHLOROMETHANE MR 4 1996
Ethylbenzene MR 4 1996
Styrene MR 4 1996
Toluene MR 4 1996
1,1,2-Trichloroethane MR 4 1996
o-Dichlorobenzene MR 4 1996
trans-1,2-Dichloroethylene MR 4 1996
Benzene MR 4 1996
cis-1,2-Dichloroethylene MR 4 1996
Trichloroethylene MR 4 1996
Vinyl chloride MR 4 1996
Xylenes, Total MR 4 1996
Carbon tetrachloride MR 4 1996
1,2-Dichloroethane MR 4 1996
1,2-Dichloropropane MR 4 1996
Tetrachloroethylene MR 4 1996
1,2,4-Trichlorobenzene MR 4 1996
CHLOROBENZENE MR 4 1996
1,1,1-Trichloroethane MR 4 1996
p-Dichlorobenzene MR 4 1996
1,1-Dichloroethylene MR 4 1996
Chlorine MR 2 2010
Revised Total Coliform Rule MON 1 2016

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFPeA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/7/2025 12.0000 µg/L 9 µg/L Detected
9Cl-PF3ONS 5/7/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/7/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 5/7/2025 <0.007 µg/L 0.007 µg/L Not Detected
8:2 FTS 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 5/7/2025 <0.008 µg/L 0.008 µg/L Not Detected
11Cl-PF3OUdS 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
NEtFOSAA 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/7/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHpA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/7/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFOS 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/7/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 5/7/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 5/7/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFOA 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 5/7/2025 <0.008 µg/L 0.008 µg/L Not Detected
4:2 FTS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 5/7/2025 12.0000 µg/L 9 µg/L Detected
PFTrDA 5/7/2025 <0.007 µg/L 0.007 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 ONEIDA #1 OR SITE #1.

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 055295703 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

05 Drinking Water Authority

05's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find 05 regulator via EPA SDWIS

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
2024 Lead and Copper Rule MR 11 SDWIS / 055295703 / 5000
2016 Revised Total Coliform Rule MON 1 SDWIS / 055295703 / 8000
2010 Coliform (TCR) MR 5 SDWIS / 055295703 / 3100
2010 Chlorine MR 2 SDWIS / 055295703 / 0999
1996 DICHLOROMETHANE MR 4 SDWIS / 055295703 / 2964
1996 Ethylbenzene MR 4 SDWIS / 055295703 / 2992
1996 Styrene MR 4 SDWIS / 055295703 / 2996
1996 Toluene MR 4 SDWIS / 055295703 / 2991
1996 1,1,2-Trichloroethane MR 4 SDWIS / 055295703 / 2985
1996 o-Dichlorobenzene MR 4 SDWIS / 055295703 / 2968
1996 trans-1,2-Dichloroethylene MR 4 SDWIS / 055295703 / 2979
1996 Benzene MR 4 SDWIS / 055295703 / 2990
1996 cis-1,2-Dichloroethylene MR 4 SDWIS / 055295703 / 2380
1996 Trichloroethylene MR 4 SDWIS / 055295703 / 2984
1996 Vinyl chloride MR 4 SDWIS / 055295703 / 2976

How ONEIDA #1 OR SITE #1 Compares

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

Metric ONEIDA #1 OR SITE #1 05 avg Federal benchmark
Total violations 104 173 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 3.9 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 38.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,322 1,277 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 113 regulated public water systems in 05.

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 ONEIDA #1 OR SITE #1 water safe to drink? ▼
ONEIDA #1 OR SITE #1 (PWS ID: 055295703) has 104 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 4,322 people using Groundwater sources.
How many people does ONEIDA #1 OR SITE #1 serve? ▼
ONEIDA #1 OR SITE #1 serves 4,322 people in ONEIDA, 05. It is a Native American-owned system using Groundwater water sources with 651 service connections.
What type of violations does ONEIDA #1 OR SITE #1 have? ▼
ONEIDA #1 OR SITE #1 has 104 total violations: 0 health-based violations (MCL exceedances or treatment failures), 103 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ONEIDA #1 OR SITE #1 water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in ONEIDA #1 OR SITE #1's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does ONEIDA #1 OR SITE #1 use? ▼
ONEIDA #1 OR SITE #1 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. 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.

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