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Tap water quality report

Cold Bay

EPA monitoring tested this supplier for 49 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

49
contaminants tested
12
detected
182
people served
2
health-based violations
Alaska rankingsLead in AlaskaPFAS in Alaska
Water source
Ground water
Ownership
Local government
Counties served
Aleutians East Borough

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.

2
health-based violations
90
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2009-05-01 → 2009-05-31
MCL Health-based Archived 1993-11-01 → 1993-11-30
MR Monitoring Unaddressed 2026-01-01
MR Monitoring Resolved 2025-01-01 → 2025-01-31
MON Monitoring Resolved 2025-01-01 → 2025-01-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
Other Monitoring Resolved 2019-07-01
MR Monitoring Resolved 2018-01-01 → 2018-12-31
Other Monitoring Resolved 2014-07-01
MR Monitoring Resolved 2012-07-01 → 2012-09-30

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0035 mg/L 23%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2028
Copper
163.6 µg/L 13%
of the EPA limit 1300 µg/L
worst single sample: 193 µg/L
15/15 SYR4 2013–2019
Lead
5.628 µg/L 38%
of the EPA limit 15 µg/L
worst single sample: 6.1 µg/L
5/15 SYR4 2013–2019
Bromodichloromethane
1.523 µg/L
No EPA limit set
worst single sample: 1.57 µg/L
3/3 SYR4 2013–2017
Bromoform
17.19 µg/L
No EPA limit set
worst single sample: 17.3 µg/L
3/3 SYR4 2013–2017
Dibromochloromethane
6.72 µg/L
No EPA limit set
worst single sample: 6.9 µg/L
3/3 SYR4 2013–2017
Nitrate-Nitrite
152 µg/L 1.5%
of the EPA limit 10000 µg/L
worst single sample: 153 µg/L
3/6 SYR4 2012–2019
TTHM
24.49 µg/L 31%
of the EPA limit 80 µg/L
worst single sample: 24.6 µg/L
3/3 SYR4 2013–2017
Dibromoacetic Acid
2.6685 µg/L
No EPA limit set
worst single sample: 2.73 µg/L
2/3 SYR4 2013–2017
Total Haloacetic Acids (HAA5)
2.6685 µg/L 4.4%
of the EPA limit 60 µg/L
worst single sample: 2.73 µg/L
2/3 SYR4 2013–2017
Arsenic
0.9400 µg/L 9.4%
of the EPA limit 10 µg/L
 1/1 SYR4 2013
Barium
6.22 µg/L 0.3%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
37 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChloroformChromiumCombined Radium (-226 And -228)DichloromethaneDichloroacetic AcidEthylbenzeneFluorideMercuryMonobromoacetic AcidMonochloroacetic AcidNitrateSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PIERCE, LORIE
Phone
907-532-2401
Email
[email protected]

Frequently asked questions about Cold Bay

Is Cold Bay tap water safe to drink?

EPA monitoring detected 12 contaminants in Cold Bay'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 Cold Bay's water?

EPA monitoring detected Lead, Copper, Lead, Bromodichloromethane, Bromoform, and others. The full list with the level and data source for each is above.

How many people does Cold Bay serve?

Cold Bay reports serving 182 people in Alaska, per its EPA record.

Has Cold Bay had any water quality violations?

The EPA has 90 violations on file for Cold Bay, of which 2 are health-based (a contaminant limit or required treatment was breached) and 1 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.