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Community Water System · PWS ID6210001

Banida Winder Water and Sewer Dist

Preston, Idaho 83263 - drinking water served from groundwater sources to 180 people, tracked in EPA SDWIS and UCMR5.

180
People served
302
EPA violations
37
Health-based
Untested
UCMR5 result

The verdict

EPA records 302 drinking-water violations at Banida Winder Water and Sewer Dist, 12% of them health-based - above the Idaho per-system average.

302
Total EPA violations on record
12%
Health-based (MCL / treatment failure)
180
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Banida Winder Water and Sewer Dist

Banida Winder Water and Sewer Dist is a private-owned community water system that delivers drinking water to 180 residents in Preston, Idaho (Franklin County) through 60 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 302 total violations for this system , of which 37 (12%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 231 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 E. COLI, recorded in 68 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%).

Banida Winder Water and Sewer Dist's 302 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
180
Total Violations
302
Health-Based Violations
37
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
60
County
Franklin
School/Daycare
No
MCL Violations
14
Monitoring Violations
231
Treatment Tech Violations
23

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
E. COLI MR 68 2025
Chlorine MR 55 2025
Revised Total Coliform Rule MON 35 2025
Lead and Copper Rule MR 31 2023
Public Notice Other 24 2025
Revised Total Coliform Rule TT 23 2025
Nitrate MR 16 2025
Coliform (TCR) MR 10 2006
Coliform (TCR) MCL 7 2015
Groundwater Rule Other 5 2020
Revised Total Coliform Rule MCL 4 2023
Nitrate MCL 3 2011
Heptachlor MR 1 1993
Methoxychlor MR 1 1993
Toxaphene MR 1 1993
2,4-D MR 1 1993
2,4,5-TP MR 1 1993
Carbofuran MR 1 1993
ETHYLENE DIBROMIDE MR 1 1993
1,2-DIBROMO-3-CHLOROPROPANE MR 1 1993
Radium-226 MR 1 1994
Chlordane MR 1 1993
Atrazine MR 1 1993
LASSO MR 1 1993
Heptachlor epoxide MR 1 1993
BHC-GAMMA MR 1 1993
Pentachlorophenol MR 1 1993
Total Polychlorinated Biphenyls (PCB) MR 1 1993

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 Banida Winder Water and Sewer Dist.

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 ID6210001 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 E. COLI MR 68 SDWIS / ID6210001 / 3014
2025 Chlorine MR 55 SDWIS / ID6210001 / 0999
2025 Revised Total Coliform Rule MON 35 SDWIS / ID6210001 / 8000
2025 Public Notice Other 24 SDWIS / ID6210001 / 7500
2025 Revised Total Coliform Rule TT 23 SDWIS / ID6210001 / 8000
2025 Nitrate MR 16 SDWIS / ID6210001 / 1040
2023 Lead and Copper Rule MR 31 SDWIS / ID6210001 / 5000
2023 Revised Total Coliform Rule MCL 4 SDWIS / ID6210001 / 8000
2020 Groundwater Rule Other 5 SDWIS / ID6210001 / 0700
2015 Coliform (TCR) MCL 7 SDWIS / ID6210001 / 3100
2011 Nitrate MCL 3 SDWIS / ID6210001 / 1040
2006 Coliform (TCR) MR 10 SDWIS / ID6210001 / 3100
1994 Radium-226 MR 1 SDWIS / ID6210001 / 4020
1993 Heptachlor MR 1 SDWIS / ID6210001 / 2065
1993 Methoxychlor MR 1 SDWIS / ID6210001 / 2015

How Banida Winder Water and Sewer Dist Compares

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

Metric Banida Winder Water and Sewer Dist Idaho avg Federal benchmark
Total violations 302 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 37 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 180 870 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 Banida Winder Water and Sewer Dist water safe to drink? ▼
Banida Winder Water and Sewer Dist (PWS ID: ID6210001) has 302 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 180 people using Groundwater sources.
How many people does Banida Winder Water and Sewer Dist serve? ▼
Banida Winder Water and Sewer Dist serves 180 people in Preston, Idaho. It is a Private-owned system using Groundwater water sources with 60 service connections.
What type of violations does Banida Winder Water and Sewer Dist have? ▼
Banida Winder Water and Sewer Dist has 302 total violations: 37 health-based violations (MCL exceedances or treatment failures), 231 monitoring/reporting violations, and 23 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Banida Winder Water and Sewer Dist water? ▼
No PFAS testing data is available for Banida Winder Water and Sewer Dist under the EPA's UCMR5 monitoring program.
What water source does Banida Winder Water and Sewer Dist use? ▼
Banida Winder Water and Sewer Dist 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.