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States → Idaho

Non-Transient Non-Community Water System · PWS ID5420061

Usda Ars

Kimberly, Idaho 83341 - drinking water served from groundwater sources to 46 people, tracked in EPA SDWIS and UCMR5.

46
People served
104
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 104 drinking-water violations at Usda Ars, 5% of them health-based - above the Idaho per-system average.

104
Total EPA violations on record
5%
Health-based (MCL / treatment failure)
46
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Usda Ars

Usda Ars is a federal-owned non-transient non-community water system that delivers drinking water to 46 residents in Kimberly, Idaho (Twin Falls County) through 1 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 5 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 94 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 Coliform (TCR), recorded in 22 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. Statewide, 40 of 60 UCMR5-tested systems have reported PFAS detections (66.7%).

Usda Ars's 104 violations sit above the Idaho 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
46
Total Violations
104
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Federal
Connections
1
County
Twin Falls
School/Daycare
No
MCL Violations
5
Monitoring Violations
94
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 22 2013
Lead and Copper Rule MR 20 1999
Coliform (TCR) MCL 5 2009
cis-1,2-Dichloroethylene MR 2 2011
1,2,4-Trichlorobenzene MR 2 2011
Xylenes, Total MR 2 2011
p-Dichlorobenzene MR 2 2011
Vinyl chloride MR 2 2011
1,2-Dichloroethane MR 2 2011
1,1,1-Trichloroethane MR 2 2011
Carbon tetrachloride MR 2 2011
Trichloroethylene MR 2 2011
1,1,2-Trichloroethane MR 2 2011
Tetrachloroethylene MR 2 2011
CHLOROBENZENE MR 2 2011
Benzene MR 2 2011
Ethylbenzene MR 2 2011
Revised Total Coliform Rule MON 2 2022
Nitrate MR 2 1996
1,1-Dichloroethylene MR 2 2011
trans-1,2-Dichloroethylene MR 2 2011
Styrene MR 2 2011
DICHLOROMETHANE MR 2 2011
1,2-Dichloropropane MR 2 2011
o-Dichlorobenzene MR 2 2011
Toluene MR 2 2011
Barium MR 1 1993
Mercury MR 1 1993
Selenium MR 1 1993
Public Notice Other 1 2010

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 Usda Ars.

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 ID5420061 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
2022 Revised Total Coliform Rule MON 2 SDWIS / ID5420061 / 8000
2013 Coliform (TCR) MR 22 SDWIS / ID5420061 / 3100
2011 cis-1,2-Dichloroethylene MR 2 SDWIS / ID5420061 / 2380
2011 1,2,4-Trichlorobenzene MR 2 SDWIS / ID5420061 / 2378
2011 Xylenes, Total MR 2 SDWIS / ID5420061 / 2955
2011 p-Dichlorobenzene MR 2 SDWIS / ID5420061 / 2969
2011 Vinyl chloride MR 2 SDWIS / ID5420061 / 2976
2011 1,2-Dichloroethane MR 2 SDWIS / ID5420061 / 2980
2011 1,1,1-Trichloroethane MR 2 SDWIS / ID5420061 / 2981
2011 Carbon tetrachloride MR 2 SDWIS / ID5420061 / 2982
2011 Trichloroethylene MR 2 SDWIS / ID5420061 / 2984
2011 1,1,2-Trichloroethane MR 2 SDWIS / ID5420061 / 2985
2011 Tetrachloroethylene MR 2 SDWIS / ID5420061 / 2987
2011 CHLOROBENZENE MR 2 SDWIS / ID5420061 / 2989
2011 Benzene MR 2 SDWIS / ID5420061 / 2990

How Usda Ars Compares

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

Metric Usda Ars Idaho avg Federal benchmark
Total violations 104 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 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 46 870 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 (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 Usda Ars water safe to drink? ▼
Usda Ars (PWS ID: ID5420061) has 104 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 46 people using Groundwater sources.
How many people does Usda Ars serve? ▼
Usda Ars serves 46 people in Kimberly, Idaho. It is a Federal-owned system using Groundwater water sources with 1 service connections.
What type of violations does Usda Ars have? ▼
Usda Ars has 104 total violations: 5 health-based violations (MCL exceedances or treatment failures), 94 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Usda Ars water? ▼
No PFAS testing data is available for Usda Ars under the EPA's UCMR5 monitoring program.
What water source does Usda Ars use? ▼
Usda Ars uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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. This data is provided for informational purposes only.

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

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.