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Tap water quality report

Brewster Flat Domestic Water Assn

EPA monitoring tested this supplier for 64 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

64
contaminants tested
10
detected
542
people served
0
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Private
Counties served
Okanogan

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.

0
health-based violations
35
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Resolved 2019-08-01 → 2019-08-31
MR Monitoring Archived 2008-04-01 → 2008-06-30
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31

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
Nitrate
3732.5 µg/L 37%
of the EPA limit 10000 µg/L
worst single sample: 3760 µg/L
26/26 SYR4 2012–2018
Lead
0.0036 mg/L 24%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Nitrate-Nitrite
4585 µg/L 46%
of the EPA limit 10000 µg/L
worst single sample: 4590 µg/L
6/6 SYR4 2012–2019
Arsenic
3.2475 µg/L 32%
of the EPA limit 10 µg/L
worst single sample: 3.25 µg/L
2/2 SYR4 2012–2016
Barium
64.77 µg/L 3.2%
of the EPA limit 2000 µg/L
worst single sample: 64.9 µg/L
2/2 SYR4 2012–2016
Copper
11.529 µg/L 0.9%
of the EPA limit 1300 µg/L
worst single sample: 12 µg/L
2/2 SYR4 2012–2016
Chromium
2.2075 µg/L 2.2%
of the EPA limit 100 µg/L
worst single sample: 2.25 µg/L
2/2 SYR4 2012–2016
Fluoride
456.3 µg/L 11%
of the EPA limit 4000 µg/L
worst single sample: 457 µg/L
2/2 SYR4 2012–2016
Selenium
1.657 µg/L 3.3%
of the EPA limit 50 µg/L
worst single sample: 1.66 µg/L
2/2 SYR4 2012–2016
Lead
1.4 µg/L 9.3%
of the EPA limit 15 µg/L
 1/2 SYR4 2012–2016
54 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitritePentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Darrin Cavadini

Frequently asked questions about Brewster Flat Domestic Water Assn

Is Brewster Flat Domestic Water Assn tap water safe to drink?

EPA monitoring detected 10 contaminants in Brewster Flat Domestic Water Assn'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 Brewster Flat Domestic Water Assn's water?

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

How many people does Brewster Flat Domestic Water Assn serve?

Brewster Flat Domestic Water Assn reports serving 542 people in Washington, per its EPA record.

Has Brewster Flat Domestic Water Assn had any water quality violations?

The EPA has 35 violations on file for Brewster Flat Domestic Water Assn, of which 0 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.