Tap WaterIndex

← Alaska

Tap water quality report

Greenbrook S/D

EPA monitoring tested this supplier for 28 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

28
contaminants tested
5
detected
123
people served
1
health-based violations
Alaska rankingsLead in AlaskaPFAS in Alaska
Water source
Ground water
Ownership
Private
Counties served
Anchorage Municipality

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.

1
health-based violations
123
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-07-18
Other Monitoring Resolved 2021-10-01
Other Monitoring Resolved 2011-07-01
MR Monitoring Resolved 2001-10-01
Other Monitoring Resolved 1999-10-19 → 2000-06-09
Other Monitoring Resolved 1999-10-19 → 2000-06-09
MR Monitoring Resolved 1999-01-01 → 2000-12-31
MR Monitoring Resolved 1999-01-01 → 2000-12-31
MR Monitoring Resolved 1999-01-01 → 2000-12-31
MR Monitoring Resolved 1999-01-01 → 2000-12-31

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
Copper
186.6 µg/L 14%
of the EPA limit 1300 µg/L
worst single sample: 198 µg/L
42/43 SYR4 2012–2019
Lead
22.24 µg/L 148%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 33 µg/L
37/43 SYR4 2012–2019
Lead
0.0019 mg/L 13%
of the EPA limit 0.0150 mg/L
 22/22 LCR 2025
Nitrate-Nitrite
7164 µg/L 72%
of the EPA limit 10000 µg/L
worst single sample: 7650 µg/L
7/7 SYR4 2012–2019
Nitrate
5440 µg/L 54%
of the EPA limit 10000 µg/L
 2/2 SYR4 2017
23 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneArsenicBenzeneChlorobenzeneCarbon TetrachlorideCombined Radium (-226 And -228)DichloromethaneEthylbenzeneStyreneTetrachloroethyleneTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DESLAURIERS, DEAN
Phone
907-562-3345
Email
[email protected]

Frequently asked questions about Greenbrook S/D

Is Greenbrook S/D tap water safe to drink?

EPA monitoring detected 5 contaminants in Greenbrook S/D'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 Greenbrook S/D's water?

EPA monitoring detected Copper, Lead, Lead, Nitrate-Nitrite, Nitrate. The full list with the level and data source for each is above.

How many people does Greenbrook S/D serve?

Greenbrook S/D reports serving 123 people in Alaska, per its EPA record.

Has Greenbrook S/D had any water quality violations?

The EPA has 123 violations on file for Greenbrook S/D, of which 1 is 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.