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Community Water System · PWS ID2250053

Riggins City Of

Riggins, Idaho 83549 - drinking water served from groundwater sources to 434 people, tracked in EPA SDWIS and UCMR5.

434
People served
50
EPA violations
8
Health-based
Untested
UCMR5 result

The verdict

EPA records 50 drinking-water violations at Riggins City Of, 16% of them health-based - below the Idaho per-system average.

50
Total EPA violations on record
16%
Health-based (MCL / treatment failure)
434
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Riggins City Of

Riggins City Of is a local-owned community water system that delivers drinking water to 434 residents in Riggins, Idaho (Idaho County) through 292 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 50 total violations for this system , of which 8 (16%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 42 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Chlorine, recorded in 14 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%).

Riggins City Of's 50 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
434
Total Violations
50
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
292
County
Idaho
School/Daycare
No
MCL Violations
8
Monitoring Violations
42
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 14 2021
Coliform (TCR) MR 10 2010
Coliform (TCR) MCL 8 2009
TTHM MR 4 2016
Total Haloacetic Acids (HAA5) MR 4 2016
Groundwater Rule MR 3 2021
Revised Total Coliform Rule MON 3 2021
Lead and Copper Rule MR 2 2011
Nitrate MR 1 2005
Fluoride MR 1 2002

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 Riggins City Of.

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 ID2250053 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
2021 Chlorine MR 14 SDWIS / ID2250053 / 0999
2021 Groundwater Rule MR 3 SDWIS / ID2250053 / 0700
2021 Revised Total Coliform Rule MON 3 SDWIS / ID2250053 / 8000
2016 TTHM MR 4 SDWIS / ID2250053 / 2950
2016 Total Haloacetic Acids (HAA5) MR 4 SDWIS / ID2250053 / 2456
2011 Lead and Copper Rule MR 2 SDWIS / ID2250053 / 5000
2010 Coliform (TCR) MR 10 SDWIS / ID2250053 / 3100
2009 Coliform (TCR) MCL 8 SDWIS / ID2250053 / 3100
2005 Nitrate MR 1 SDWIS / ID2250053 / 1040
2002 Fluoride MR 1 SDWIS / ID2250053 / 1025

How Riggins City Of Compares

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

Metric Riggins City Of Idaho avg Federal benchmark
Total violations 50 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 8 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 434 870 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 Riggins City Of water safe to drink? ▼
Riggins City Of (PWS ID: ID2250053) has 50 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 434 people using Groundwater sources.
How many people does Riggins City Of serve? ▼
Riggins City Of serves 434 people in Riggins, Idaho. It is a Local-owned system using Groundwater water sources with 292 service connections.
What type of violations does Riggins City Of have? ▼
Riggins City Of has 50 total violations: 8 health-based violations (MCL exceedances or treatment failures), 42 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Riggins City Of water? ▼
No PFAS testing data is available for Riggins City Of under the EPA's UCMR5 monitoring program.
What water source does Riggins City Of use? ▼
Riggins City Of 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.