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Tap water quality report

Eastern Navajo Agency - Bie

EPA monitoring tested this supplier for 72 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

72
contaminants tested
11
detected
455
people served
6
health-based violations
DC rankingsLead in DCPFAS in DC
Water source
Ground water
Ownership
Federal government

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

6
health-based violations
105
violations on file
5
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2026-01-21
TT Health-based Unaddressed 2026-01-21
TT Health-based Unaddressed 2026-01-21
TT Health-based Unaddressed 2026-01-21
TT Health-based Unaddressed 2026-01-21
TT Health-based Resolved 2024-10-17
MR Monitoring Archived 2025-04-01 → 2025-06-30
MR Monitoring Archived 2025-04-01 → 2025-06-30
MR Monitoring Archived 2025-04-01 → 2025-06-30
MR Monitoring Archived 2025-01-01 → 2025-03-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Gross Beta Particle Activity
52.4 pCi/L
No EPA limit set
 25/32 SYR4 2012–2019
Lead
0.0091 mg/L 61%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2023
TTHM
11.1 µg/L 14%
of the EPA limit 80 µg/L
 9/15 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
9.93 pCi/L 66%
of the EPA limit 15 pCi/L
 3/3 SYR4 2014–2018
Barium
41 µg/L 2.1%
of the EPA limit 2000 µg/L
 2/2 SYR4 2014–2017
Combined Radium (-226 And -228)
1.591 pCi/L 32%
of the EPA limit 5 pCi/L
 2/2 SYR4 2014–2017
Combined Uranium
3.1 µg/L 10%
of the EPA limit 30 µg/L
 2/3 SYR4 2014–2018
Fluoride
300 µg/L 7.5%
of the EPA limit 4000 µg/L
 2/2 SYR4 2014–2017
Nitrate
290 µg/L 2.9%
of the EPA limit 10000 µg/L
 2/18 SYR4 2012–2019
Selenium
1.3 µg/L 2.6%
of the EPA limit 50 µg/L
 1/2 SYR4 2014–2017
Total Haloacetic Acids (HAA5)
1.11 µg/L 1.9%
of the EPA limit 60 µg/L
 1/14 SYR4 2012–2019
61 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Russell Brigham
Phone
5053775010
Email
russell.brigham@bie.edu

Frequently asked questions about Eastern Navajo Agency - Bie

Is Eastern Navajo Agency - Bie tap water safe to drink?

EPA monitoring detected 11 contaminants in Eastern Navajo Agency - Bie's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Eastern Navajo Agency - Bie's water?

EPA monitoring detected Gross Beta Particle Activity, Lead, TTHM, Gross Alpha, Excl. Radon And U, Barium, and others. The full list with the level and data source for each is above.

How many people does Eastern Navajo Agency - Bie serve?

Eastern Navajo Agency - Bie reports serving 455 people in DC, per its EPA record.

Has Eastern Navajo Agency - Bie had any water quality violations?

The EPA has 105 violations on file for Eastern Navajo Agency - Bie, of which 6 are health-based (a contaminant limit or required treatment was breached) and 5 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.