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Community Water System · PWS ID7100044

J and K Water Corp

Idaho Falls, Idaho 83401 - drinking water served from groundwater sources to 370 people, tracked in EPA SDWIS and UCMR5.

370
People served
196
EPA violations
11
Health-based
Untested
UCMR5 result

The verdict

EPA records 196 drinking-water violations at J and K Water Corp, 6% of them health-based - above the Idaho per-system average.

196
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
370
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: J and K Water Corp

J and K Water Corp is a private-owned community water system that delivers drinking water to 370 residents in Idaho Falls, Idaho (Bonneville County) through 100 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 196 total violations for this system , of which 11 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 179 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 10 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%).

J and K Water Corp's 196 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
370
Total Violations
196
Health-Based Violations
11
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
100
County
Bonneville
School/Daycare
No
MCL Violations
6
Monitoring Violations
179
Treatment Tech Violations
5

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 10 2022
Coliform (TCR) MR 10 2013
Nitrate MR 5 2022
Revised Total Coliform Rule TT 5 2018
Revised Total Coliform Rule MCL 4 2017
Groundwater Rule Other 4 2023
Revised Total Coliform Rule MON 3 2022
Endrin MR 3 2020
BHC-GAMMA MR 3 2020
Toxaphene MR 3 2020
Diquat MR 3 2020
Endothall MR 3 2020
Simazine MR 3 2020
Picloram MR 3 2020
Dinoseb MR 3 2020
Carbofuran MR 3 2020
Atrazine MR 3 2020
LASSO MR 3 2020
Heptachlor MR 3 2020
Heptachlor epoxide MR 3 2020
2,4,5-TP MR 3 2020
Benzo(a)pyrene MR 3 2020
Pentachlorophenol MR 3 2020
Total Polychlorinated Biphenyls (PCB) MR 3 2020
1,2-DIBROMO-3-CHLOROPROPANE MR 3 2020
ETHYLENE DIBROMIDE MR 3 2020
Chlordane MR 3 2020
cis-1,2-Dichloroethylene MR 3 2017
Xylenes, Total MR 3 2017
DICHLOROMETHANE MR 3 2017

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 J and K 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 ID7100044 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
2023 Groundwater Rule Other 4 SDWIS / ID7100044 / 0700
2022 Lead and Copper Rule MR 10 SDWIS / ID7100044 / 5000
2022 Nitrate MR 5 SDWIS / ID7100044 / 1040
2022 Revised Total Coliform Rule MON 3 SDWIS / ID7100044 / 8000
2020 Endrin MR 3 SDWIS / ID7100044 / 2005
2020 BHC-GAMMA MR 3 SDWIS / ID7100044 / 2010
2020 Toxaphene MR 3 SDWIS / ID7100044 / 2020
2020 Diquat MR 3 SDWIS / ID7100044 / 2032
2020 Endothall MR 3 SDWIS / ID7100044 / 2033
2020 Simazine MR 3 SDWIS / ID7100044 / 2037
2020 Picloram MR 3 SDWIS / ID7100044 / 2040
2020 Dinoseb MR 3 SDWIS / ID7100044 / 2041
2020 Carbofuran MR 3 SDWIS / ID7100044 / 2046
2020 Atrazine MR 3 SDWIS / ID7100044 / 2050
2020 LASSO MR 3 SDWIS / ID7100044 / 2051

How J and K Water Corp Compares

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

Metric J and K Water Corp Idaho avg Federal benchmark
Total violations 196 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 11 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 370 870 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 J and K Water Corp water safe to drink? ▼
J and K Water Corp (PWS ID: ID7100044) has 196 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 370 people using Groundwater sources.
How many people does J and K Water Corp serve? ▼
J and K Water Corp serves 370 people in Idaho Falls, Idaho. It is a Private-owned system using Groundwater water sources with 100 service connections.
What type of violations does J and K Water Corp have? ▼
J and K Water Corp has 196 total violations: 11 health-based violations (MCL exceedances or treatment failures), 179 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in J and K Water Corp water? ▼
No PFAS testing data is available for J and K Water Corp under the EPA's UCMR5 monitoring program.
What water source does J and K Water Corp use? ▼
J and K Water Corp 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.