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Community Water System · PWS ID1400030

Kingston Water Dist 1

Kingston, Idaho 83839-9741 - drinking water served from groundwater sources to 585 people, tracked in EPA SDWIS and UCMR5.

585
People served
30
EPA violations
9
Health-based
Untested
UCMR5 result

The verdict

EPA records 30 drinking-water violations at Kingston Water Dist 1, 30% of them health-based - below the Idaho per-system average.

30
Total EPA violations on record
30%
Health-based (MCL / treatment failure)
585
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Kingston Water Dist 1

Kingston Water Dist 1 is a public/private-owned community water system that delivers drinking water to 585 residents in Kingston, Idaho (Shoshone County) through 258 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 30 total violations for this system , of which 9 (30%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 20 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 Surface Water Treatment Rule, recorded in 9 violations (TT, health-based). 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%).

Kingston Water Dist 1's 30 violations sit below 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
585
Total Violations
30
Health-Based Violations
9
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Public/Private
Connections
258
County
Shoshone
School/Daycare
No
MCL Violations
0
Monitoring Violations
20
Treatment Tech Violations
9

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 9 1998
2,4-D MR 2 2009
Chlorine MR 2 2022
Picloram MR 1 2009
Nitrate MR 1 1979
Selenium MR 1 1979
Toxaphene MR 1 1979
BHC-GAMMA MR 1 1979
Fluoride MR 1 1979
Arsenic MR 1 1979
Mercury MR 1 1979
Barium MR 1 1979
Endrin MR 1 1979
Simazine MR 1 2009
Chromium MR 1 1979
Methoxychlor MR 1 1979
Gross Alpha, Excl. Radon and U MR 1 1979
2,4,5-TP MR 1 1979
Cadmium MR 1 1979

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 Kingston Water Dist 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 ID1400030 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 Chlorine MR 2 SDWIS / ID1400030 / 0999
2009 2,4-D MR 2 SDWIS / ID1400030 / 2105
2009 Picloram MR 1 SDWIS / ID1400030 / 2040
2009 Simazine MR 1 SDWIS / ID1400030 / 2037
1998 Surface Water Treatment Rule TT 9 SDWIS / ID1400030 / 0200
1979 Nitrate MR 1 SDWIS / ID1400030 / 1040
1979 Selenium MR 1 SDWIS / ID1400030 / 1045
1979 Toxaphene MR 1 SDWIS / ID1400030 / 2020
1979 BHC-GAMMA MR 1 SDWIS / ID1400030 / 2010
1979 Fluoride MR 1 SDWIS / ID1400030 / 1025
1979 Arsenic MR 1 SDWIS / ID1400030 / 1005
1979 Mercury MR 1 SDWIS / ID1400030 / 1035
1979 Barium MR 1 SDWIS / ID1400030 / 1010
1979 Endrin MR 1 SDWIS / ID1400030 / 2005
1979 Chromium MR 1 SDWIS / ID1400030 / 1020

How Kingston Water Dist 1 Compares

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

Metric Kingston Water Dist 1 Idaho avg Federal benchmark
Total violations 30 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 9 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 585 870 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 Kingston Water Dist 1 water safe to drink? ▼
Kingston Water Dist 1 (PWS ID: ID1400030) has 30 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 585 people using Groundwater sources.
How many people does Kingston Water Dist 1 serve? ▼
Kingston Water Dist 1 serves 585 people in Kingston, Idaho. It is a Public/Private-owned system using Groundwater water sources with 258 service connections.
What type of violations does Kingston Water Dist 1 have? ▼
Kingston Water Dist 1 has 30 total violations: 9 health-based violations (MCL exceedances or treatment failures), 20 monitoring/reporting violations, and 9 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Kingston Water Dist 1 water? ▼
No PFAS testing data is available for Kingston Water Dist 1 under the EPA's UCMR5 monitoring program.
What water source does Kingston Water Dist 1 use? ▼
Kingston Water Dist 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.
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.