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Tap water quality report

Atka

EPA monitoring tested this supplier for 48 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

48
contaminants tested
17
detected
50
people served
63
health-based violations
Alaska rankingsLead in AlaskaPFAS in Alaska
Water source
Surface water
Ownership
Native American
Counties served
Aleutians West Census Area

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.

63
health-based violations
1,265
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2019-08-01 → 2019-08-31
TT Health-based Resolved 2018-12-01 → 2018-12-31
TT Health-based Resolved 2018-11-01 → 2018-11-30
TT Health-based Resolved 2018-10-01 → 2018-10-31
TT Health-based Resolved 2018-09-01 → 2018-09-30
TT Health-based Resolved 2018-07-01 → 2018-07-31
TT Health-based Resolved 2012-10-01 → 2012-10-31
TT Health-based Resolved 2012-10-01 → 2012-10-31
TT Health-based Resolved 2012-09-01 → 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
0.0037 mg/L 25%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Copper
219.8 µg/L 17%
of the EPA limit 1300 µg/L
worst single sample: 239 µg/L
9/9 SYR4 2012–2017
Bromodichloromethane
19.12 µg/L
No EPA limit set
worst single sample: 19.6 µg/L
7/7 SYR4 2012–2019
Chloroform
17.61 µg/L
No EPA limit set
worst single sample: 18 µg/L
7/7 SYR4 2012–2019
Dibromochloromethane
14.61 µg/L
No EPA limit set
worst single sample: 15 µg/L
7/7 SYR4 2012–2019
TTHM
51.54 µg/L 64%
of the EPA limit 80 µg/L
worst single sample: 52.2 µg/L
7/7 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
25.2 µg/L 42%
of the EPA limit 60 µg/L
worst single sample: 27 µg/L
7/7 SYR4 2012–2019
Trichloroacetic Acid
9.25 µg/L
No EPA limit set
worst single sample: 10 µg/L
7/7 SYR4 2012–2019
Bromoform
3.0175 µg/L
No EPA limit set
worst single sample: 3.09 µg/L
6/7 SYR4 2012–2019
Dibromoacetic Acid
4.15 µg/L
No EPA limit set
worst single sample: 4.2 µg/L
6/7 SYR4 2012–2019
Dichloroacetic Acid
12.25 µg/L
No EPA limit set
worst single sample: 13 µg/L
6/7 SYR4 2012–2019
Lead
7.1 µg/L 47%
of the EPA limit 15 µg/L
worst single sample: 7.4 µg/L
4/9 SYR4 2012–2017
Arsenic
0.3820 µg/L 3.8%
of the EPA limit 10 µg/L
 1/1 SYR4 2012
Barium
5.39 µg/L 0.3%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Cyanide
91 µg/L 46%
of the EPA limit 200 µg/L
 1/1 SYR4 2012
Chromium
0.6480 µg/L 0.6%
of the EPA limit 100 µg/L
 1/1 SYR4 2012
Selenium
0.9990 µg/L 2%
of the EPA limit 50 µg/L
 1/1 SYR4 2012
31 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbon TetrachlorideCombined Radium (-226 And -228)DichloromethaneEthylbenzeneFluorideMercuryMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PROKOPEUFF, LARISSA_CO-AC ONSITE
Phone
907-839-2233
Email
[email protected]

Frequently asked questions about Atka

Is Atka tap water safe to drink?

EPA monitoring detected 17 contaminants in Atka'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 Atka's water?

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

How many people does Atka serve?

Atka reports serving 50 people in Alaska, per its EPA record.

Has Atka had any water quality violations?

The EPA has 1265 violations on file for Atka, of which 63 are health-based (a contaminant limit or required treatment was breached) and 0 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.