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Transient Non-Community Water System · PWS ID4200020

Featherville Townsite Water Corp

Meridian, Idaho 83642 - drinking water served from surface water sources to 100 people, tracked in EPA SDWIS and UCMR5.

100
People served
123
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 123 drinking-water violations at Featherville Townsite Water Corp, 5% of them health-based - above the Idaho per-system average.

123
Total EPA violations on record
5%
Health-based (MCL / treatment failure)
100
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Featherville Townsite Water Corp

Featherville Townsite Water Corp is a private-owned transient non-community water system that delivers drinking water to 100 residents in Meridian, Idaho (Elmore County) through 27 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 123 total violations for this system , of which 6 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 117 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 Coliform (TCR), recorded in 37 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%).

Featherville Townsite Water Corp's 123 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
100
Total Violations
123
Health-Based Violations
6
Water Source
Surface Water

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
27
County
Elmore
School/Daycare
No
MCL Violations
6
Monitoring Violations
117
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 37 2009
Surface Water Treatment Rule MR 35 2024
Interim Enhanced Surface Water Treatment Rule MR 23 2024
Chlorine MR 6 2022
Coliform (TCR) MCL 6 2003
Revised Total Coliform Rule MON 6 2024
Nitrate MR 4 2016
Long Term 2 Enhanced Surface Water Treatment Rule MR 3 2022
E. COLI MR 2 2022
Lead and Copper Rule MR 1 1994

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 Featherville Townsite Water Corp.

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 ID4200020 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
2024 Surface Water Treatment Rule MR 35 SDWIS / ID4200020 / 0200
2024 Interim Enhanced Surface Water Treatment Rule MR 23 SDWIS / ID4200020 / 0300
2024 Revised Total Coliform Rule MON 6 SDWIS / ID4200020 / 8000
2022 Chlorine MR 6 SDWIS / ID4200020 / 0999
2022 Long Term 2 Enhanced Surface Water Treatment Rule MR 3 SDWIS / ID4200020 / 0800
2022 E. COLI MR 2 SDWIS / ID4200020 / 3014
2016 Nitrate MR 4 SDWIS / ID4200020 / 1040
2009 Coliform (TCR) MR 37 SDWIS / ID4200020 / 3100
2003 Coliform (TCR) MCL 6 SDWIS / ID4200020 / 3100
1994 Lead and Copper Rule MR 1 SDWIS / ID4200020 / 5000

How Featherville Townsite Water Corp Compares

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

Metric Featherville Townsite Water Corp Idaho avg Federal benchmark
Total violations 123 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 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 100 870 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 Featherville Townsite Water Corp water safe to drink? ▼
Featherville Townsite Water Corp (PWS ID: ID4200020) has 123 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 100 people using Surface Water sources.
How many people does Featherville Townsite Water Corp serve? ▼
Featherville Townsite Water Corp serves 100 people in Meridian, Idaho. It is a Private-owned system using Surface Water water sources with 27 service connections.
What type of violations does Featherville Townsite Water Corp have? ▼
Featherville Townsite Water Corp has 123 total violations: 6 health-based violations (MCL exceedances or treatment failures), 117 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Featherville Townsite Water Corp water? ▼
No PFAS testing data is available for Featherville Townsite Water Corp under the EPA's UCMR5 monitoring program.
What water source does Featherville Townsite Water Corp use? ▼
Featherville Townsite Water Corp uses Surface Water as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.