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ROSWELL WATER USERS COOP COMPANY

PWS ID: ID3140103 · PARMA, Idaho 83660

ROSWELL WATER USERS COOP COMPANY serves 90 people in PARMA, Idaho using Groundwater water sources. It has 128 recorded EPA violations, including 12 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ROSWELL WATER USERS COOP COMPANY

ROSWELL WATER USERS COOP COMPANY is a private-owned community water system that delivers drinking water to 90 residents in PARMA, Idaho (Canyon County) through 52 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 128 total violations for this system , of which 12 (9%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 106 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 18 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Idaho, EPA tracks 2,005 public water systems serving 1,743,912 people, with 104,850 cumulative violations and 19,965 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 52.3 violations. ROSWELL WATER USERS COOP COMPANY's 128 violations sit above the Idaho average. Statewide, 40 of 60 UCMR5-tested systems have reported PFAS detections (66.7%). 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
90
Total Violations
128
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
52
County
Canyon
School/Daycare
No
MCL Violations
12
Monitoring Violations
106
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 18 2004
Chlorine MR 12 2022
Coliform (TCR) MCL 12 2014
Nitrate MR 5 2009
Public Notice Other 3 2014
Revised Total Coliform Rule MON 3 2023
Groundwater Rule Other 3 2017
ETHYLENE DIBROMIDE MR 2 1993
LASSO MR 2 1993
Atrazine MR 2 1993
Chlordane MR 2 1993
Heptachlor MR 2 1993
BHC-GAMMA MR 2 1993
Methoxychlor MR 2 1993
Toxaphene MR 2 1993
Total Polychlorinated Biphenyls (PCB) MR 2 1993
Pentachlorophenol MR 2 1993
2,4-D MR 2 1993
2,4,5-TP MR 2 1993
Benzene MR 2 1993
Carbon tetrachloride MR 2 1993
1,1-Dichloroethylene MR 2 1993
trans-1,2-Dichloroethylene MR 2 1993
1,2-Dichloroethane MR 2 1993
o-Dichlorobenzene MR 2 1993
p-Dichlorobenzene MR 2 1993
CHLOROBENZENE MR 2 1993
Styrene MR 2 1993
Toluene MR 2 1993
Carbofuran MR 2 1993

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 ROSWELL WATER USERS COOP COMPANY.

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 ID3140103 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Idaho Drinking Water Authority

Idaho'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 ID 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
2023 Revised Total Coliform Rule MON 3 SDWIS / ID3140103 / 8000
2022 Chlorine MR 12 SDWIS / ID3140103 / 0999
2022 Lead and Copper Rule MR 2 SDWIS / ID3140103 / 5000
2017 Groundwater Rule Other 3 SDWIS / ID3140103 / 0700
2014 Coliform (TCR) MCL 12 SDWIS / ID3140103 / 3100
2014 Public Notice Other 3 SDWIS / ID3140103 / 7500
2009 Nitrate MR 5 SDWIS / ID3140103 / 1040
2004 Coliform (TCR) MR 18 SDWIS / ID3140103 / 3100
1993 ETHYLENE DIBROMIDE MR 2 SDWIS / ID3140103 / 2946
1993 LASSO MR 2 SDWIS / ID3140103 / 2051
1993 Atrazine MR 2 SDWIS / ID3140103 / 2050
1993 Chlordane MR 2 SDWIS / ID3140103 / 2959
1993 Heptachlor MR 2 SDWIS / ID3140103 / 2065
1993 BHC-GAMMA MR 2 SDWIS / ID3140103 / 2010
1993 Methoxychlor MR 2 SDWIS / ID3140103 / 2015

How ROSWELL WATER USERS COOP COMPANY Compares

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

Metric ROSWELL WATER USERS COOP COMPANY Idaho avg Federal benchmark
Total violations 128 52.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 12 10 Indicates a contaminant exceeded a federal MCL
PFAS detection None 66.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 90 870 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,005 regulated public water systems in Idaho.

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 ROSWELL WATER USERS COOP COMPANY water safe to drink? ▼
ROSWELL WATER USERS COOP COMPANY (PWS ID: ID3140103) has 128 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 90 people using Groundwater sources.
How many people does ROSWELL WATER USERS COOP COMPANY serve? ▼
ROSWELL WATER USERS COOP COMPANY serves 90 people in PARMA, Idaho. It is a Private-owned system using Groundwater water sources with 52 service connections.
What type of violations does ROSWELL WATER USERS COOP COMPANY have? ▼
ROSWELL WATER USERS COOP COMPANY has 128 total violations: 12 health-based violations (MCL exceedances or treatment failures), 106 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ROSWELL WATER USERS COOP COMPANY water? ▼
No PFAS testing data is available for ROSWELL WATER USERS COOP COMPANY under the EPA's UCMR5 monitoring program.
What water source does ROSWELL WATER USERS COOP COMPANY use? ▼
ROSWELL WATER USERS COOP COMPANY 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.

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