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Tap water quality report

St. Marys Water

EPA monitoring tested this supplier for 48 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

48
contaminants tested
13
detected
548
people served
27
health-based violations
Alaska rankingsLead in AlaskaPFAS in Alaska
Water source
Surface water
Ownership
Native American
Counties served
Wade Hampton 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.

27
health-based violations
283
violations on file
5
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-08-01 → 2024-08-31
TT Health-based Resolved 2024-08-01 → 2024-08-31
TT Health-based Resolved 2024-08-01 → 2024-08-31
TT Health-based Resolved 2024-03-01 → 2024-03-31
TT Health-based Resolved 2024-03-01 → 2024-03-31
TT Health-based Resolved 2024-03-01 → 2024-03-31
TT Health-based Resolved 2018-09-01 → 2018-09-30
TT Health-based Resolved 2018-09-01 → 2018-09-30
TT Health-based Resolved 2017-10-01 → 2017-10-31
TT Health-based Resolved 2017-10-01 → 2017-10-31

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 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
Chloroform
30.4 µg/L
No EPA limit set
worst single sample: 51.9 µg/L
31/32 SYR4 2012–2019
Bromodichloromethane
4.029 µg/L
No EPA limit set
worst single sample: 5.03 µg/L
30/32 SYR4 2012–2019
TTHM
34.275 µg/L 43%
of the EPA limit 80 µg/L
worst single sample: 54.7 µg/L
30/32 SYR4 2012–2019
Copper
1995 µg/L 153%
of the EPA limit, at the 95th percentile of samples — 1300 µg/L
worst single sample: 3800 µg/L
27/27 SYR4 2012–2013
Lead
5.274 µg/L 35%
of the EPA limit 15 µg/L
worst single sample: 11.6 µg/L
25/27 SYR4 2012–2013
Dichloroacetic Acid
12.9 µg/L
No EPA limit set
worst single sample: 13 µg/L
23/24 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
26.8 µg/L 45%
of the EPA limit 60 µg/L
worst single sample: 29 µg/L
23/24 SYR4 2012–2019
Trichloroacetic Acid
14 µg/L
No EPA limit set
 23/24 SYR4 2012–2019
Nitrate-Nitrite
332 µg/L 3.3%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
Dibromochloromethane
0.8880 µg/L
No EPA limit set
worst single sample: 0.9100 µg/L
5/32 SYR4 2012–2019
Barium
13.9 µg/L 0.7%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Monochloroacetic Acid
2.2 µg/L
No EPA limit set
 1/24 SYR4 2012–2019
35 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicBenzeneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)DichloromethaneDibromoacetic AcidEthylbenzeneFluorideMercuryMonobromoacetic AcidSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BEANS, BONNIE
Phone
907-438-2617
Email
[email protected]

Frequently asked questions about St. Marys Water

Is St. Marys Water tap water safe to drink?

EPA monitoring detected 13 contaminants in St. Marys Water'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 St. Marys Water's water?

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

How many people does St. Marys Water serve?

St. Marys Water reports serving 548 people in Alaska, per its EPA record.

Has St. Marys Water had any water quality violations?

The EPA has 283 violations on file for St. Marys Water, of which 27 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.