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Community Water System · PWS ID5420089

Kanaka Rapids Ranch Water System Inc

Buhl, Idaho 83316 - drinking water served from groundwater sources to 220 people, tracked in EPA SDWIS and UCMR5.

220
People served
143
EPA violations
65
Health-based
Untested
UCMR5 result

The verdict

EPA records 143 drinking-water violations at Kanaka Rapids Ranch Water System Inc, 45% of them health-based - above the Idaho per-system average.

143
Total EPA violations on record
45%
Health-based (MCL / treatment failure)
220
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Kanaka Rapids Ranch Water System Inc

Kanaka Rapids Ranch Water System Inc is a private-owned community water system that delivers drinking water to 220 residents in Buhl, Idaho (Twin Falls County) through 120 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 143 total violations for this system , of which 65 (45%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 69 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Arsenic, recorded in 58 violations (MCL, 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%).

Kanaka Rapids Ranch Water System Inc's 143 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
220
Total Violations
143
Health-Based Violations
65
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
120
County
Twin Falls
School/Daycare
No
MCL Violations
65
Monitoring Violations
69
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 58 2010
Revised Total Coliform Rule MON 22 2024
Arsenic MR 20 2020
Fluoride MR 8 2025
Fluoride MCL 7 2014
Lead and Copper Rule MR 7 2019
Coliform (TCR) MR 6 2007
Public Notice Other 5 2010
E. COLI MR 3 2018
Nitrate MR 3 2001
LEAD AND COPPER RULE REVISIONS RPT 2 2025
Consumer Confidence Rule Other 2 1999

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 Kanaka Rapids Ranch Water System Inc.

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 ID5420089 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
2025 Fluoride MR 8 SDWIS / ID5420089 / 1025
2025 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / ID5420089 / 5200
2024 Revised Total Coliform Rule MON 22 SDWIS / ID5420089 / 8000
2020 Arsenic MR 20 SDWIS / ID5420089 / 1005
2019 Lead and Copper Rule MR 7 SDWIS / ID5420089 / 5000
2018 E. COLI MR 3 SDWIS / ID5420089 / 3014
2014 Fluoride MCL 7 SDWIS / ID5420089 / 1025
2010 Arsenic MCL 58 SDWIS / ID5420089 / 1005
2010 Public Notice Other 5 SDWIS / ID5420089 / 7500
2007 Coliform (TCR) MR 6 SDWIS / ID5420089 / 3100
2001 Nitrate MR 3 SDWIS / ID5420089 / 1040
1999 Consumer Confidence Rule Other 2 SDWIS / ID5420089 / 7000

How Kanaka Rapids Ranch Water System Inc Compares

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

Metric Kanaka Rapids Ranch Water System Inc Idaho avg Federal benchmark
Total violations 143 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 65 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 220 870 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 Kanaka Rapids Ranch Water System Inc water safe to drink? ▼
Kanaka Rapids Ranch Water System Inc (PWS ID: ID5420089) has 143 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 220 people using Groundwater sources.
How many people does Kanaka Rapids Ranch Water System Inc serve? ▼
Kanaka Rapids Ranch Water System Inc serves 220 people in Buhl, Idaho. It is a Private-owned system using Groundwater water sources with 120 service connections.
What type of violations does Kanaka Rapids Ranch Water System Inc have? ▼
Kanaka Rapids Ranch Water System Inc has 143 total violations: 65 health-based violations (MCL exceedances or treatment failures), 69 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Kanaka Rapids Ranch Water System Inc water? ▼
No PFAS testing data is available for Kanaka Rapids Ranch Water System Inc under the EPA's UCMR5 monitoring program.
What water source does Kanaka Rapids Ranch Water System Inc use? ▼
Kanaka Rapids Ranch Water System Inc 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.