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Community Water System · PWS ID1050026

Tensed City Of

Tensed, Idaho 83870 - drinking water served from groundwater sources to 146 people, tracked in EPA SDWIS and UCMR5.

146
People served
90
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 90 drinking-water violations at Tensed City Of, 11% of them health-based - above the Idaho per-system average.

90
Total EPA violations on record
11%
Health-based (MCL / treatment failure)
146
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Tensed City Of

Tensed City Of is a local-owned community water system that delivers drinking water to 146 residents in Tensed, Idaho (Benewah County) through 73 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 90 total violations for this system , of which 10 (11%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 71 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 13 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%).

Tensed City Of's 90 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
146
Total Violations
90
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
73
County
Benewah
School/Daycare
No
MCL Violations
6
Monitoring Violations
71
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 13 2010
Revised Total Coliform Rule MON 13 2023
Chlorine MR 7 2023
Coliform (TCR) MCL 6 2007
Nitrate MR 5 2022
LEAD AND COPPER RULE REVISIONS TT 4 2024
Lead and Copper Rule MR 4 2023
Groundwater Rule Other 4 2019
E. COLI MR 3 2022
LEAD AND COPPER RULE REVISIONS RPT 3 2024
Barium MR 2 1993
Cadmium MR 2 1993
Picloram MR 2 1996
Dinoseb MR 2 1996
2,4-D MR 2 1996
2,4,5-TP MR 2 1996
Radium-226 MR 2 2017
Radium-228 MR 2 2017
Mercury MR 2 1993
Fluoride MR 2 1993
Chromium MR 2 1993
Selenium MR 2 1993
Dalapon MR 2 1996

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 Tensed 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 ID1050026 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 LEAD AND COPPER RULE REVISIONS TT 4 SDWIS / ID1050026 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 3 SDWIS / ID1050026 / 5200
2023 Revised Total Coliform Rule MON 13 SDWIS / ID1050026 / 8000
2023 Chlorine MR 7 SDWIS / ID1050026 / 0999
2023 Lead and Copper Rule MR 4 SDWIS / ID1050026 / 5000
2022 Nitrate MR 5 SDWIS / ID1050026 / 1040
2022 E. COLI MR 3 SDWIS / ID1050026 / 3014
2019 Groundwater Rule Other 4 SDWIS / ID1050026 / 0700
2017 Radium-226 MR 2 SDWIS / ID1050026 / 4020
2017 Radium-228 MR 2 SDWIS / ID1050026 / 4030
2010 Coliform (TCR) MR 13 SDWIS / ID1050026 / 3100
2007 Coliform (TCR) MCL 6 SDWIS / ID1050026 / 3100
1996 Picloram MR 2 SDWIS / ID1050026 / 2040
1996 Dinoseb MR 2 SDWIS / ID1050026 / 2041
1996 2,4-D MR 2 SDWIS / ID1050026 / 2105

How Tensed City Of Compares

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

Metric Tensed City Of Idaho avg Federal benchmark
Total violations 90 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 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 146 870 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 Tensed City Of water safe to drink? ▼
Tensed City Of (PWS ID: ID1050026) has 90 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 146 people using Groundwater sources.
How many people does Tensed City Of serve? ▼
Tensed City Of serves 146 people in Tensed, Idaho. It is a Local-owned system using Groundwater water sources with 73 service connections.
What type of violations does Tensed City Of have? ▼
Tensed City Of has 90 total violations: 10 health-based violations (MCL exceedances or treatment failures), 71 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Tensed City Of water? ▼
No PFAS testing data is available for Tensed City Of under the EPA's UCMR5 monitoring program.
What water source does Tensed City Of use? ▼
Tensed 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.