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Community Water System · PWS 093534003

Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE

Washington, EPA Region 9 — Tribal Water Systems 20240 - drinking water served from groundwater sources to 120 people, tracked in EPA SDWIS and UCMR5.

120
People served
30
EPA violations
8
Health-based
Untested
UCMR5 result

The verdict

EPA records 30 drinking-water violations at Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE, 27% of them health-based.

30
Total EPA violations on record
27%
Health-based (MCL / treatment failure)
120
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE

Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE is a federal-owned community water system that delivers drinking water to 120 residents in Washington, EPA Region 9 — Tribal Water Systems through 17 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 30 total violations for this system , of which 8 (27%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 10 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 8 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 9 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

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
120
Total Violations
30
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Federal
Connections
17
School/Daycare
Yes
MCL Violations
7
Monitoring Violations
10
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 8 2014
Consumer Confidence Rule Other 6 2023
Coliform (TCR) MCL 4 2015
Gross Alpha, Excl. Radon and U MCL 3 2004
Revised Total Coliform Rule TT 1 2024
Lead and Copper Rule MR 1 2020
E. COLI MR 1 2024

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 Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE.

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 093534003 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 9 — Tribal Water Systems Drinking Water Authority

EPA Region 9 — Tribal Water Systems'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 09 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 Revised Total Coliform Rule TT 1 SDWIS / 093534003 / 8000
2024 E. COLI MR 1 SDWIS / 093534003 / 3014
2023 Consumer Confidence Rule Other 6 SDWIS / 093534003 / 7000
2020 Lead and Copper Rule MR 1 SDWIS / 093534003 / 5000
2015 Coliform (TCR) MCL 4 SDWIS / 093534003 / 3100
2014 Coliform (TCR) MR 8 SDWIS / 093534003 / 3100
2004 Gross Alpha, Excl. Radon and U MCL 3 SDWIS / 093534003 / 4000

How Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE Compares

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

Metric Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 30 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 8 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 120 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 9 — Tribal Water Systems.

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 Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE water safe to drink?
Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE (PWS ID: 093534003) has 30 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 120 people using Groundwater sources.
How many people does Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE serve?
Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE serves 120 people in Washington, EPA Region 9 — Tribal Water Systems. It is a Federal-owned system using Groundwater water sources with 17 service connections.
What type of violations does Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE have?
Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE has 30 total violations: 8 health-based violations (MCL exceedances or treatment failures), 10 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE water?
No PFAS testing data is available for Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE under the EPA's UCMR5 monitoring program.
What water source does Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE use?
Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE 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.
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.