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Tap water quality report

Mount Baker Water Association

EPA monitoring tested this supplier for 44 contaminants and detected 3. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
3
detected
500
people served
9
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Private
Counties served
Whatcom

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.

9
health-based violations
196
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2016-01-01 → 2016-01-31
MCL Health-based Resolved 2014-10-01 → 2014-10-31
MCL Health-based Archived 2006-07-01 → 2006-07-31
MCL Health-based Archived 2004-10-01 → 2004-10-31
MCL Health-based Archived 2003-11-01 → 2003-11-30
MCL Health-based Archived 2000-08-01 → 2000-08-31
MCL Health-based Archived 2000-08-01 → 2000-08-31
MCL Health-based Archived 2000-08-01 → 2000-08-31
MCL Health-based Archived 1993-02-01 → 1993-02-28
MON Monitoring Resolved 2022-04-01 → 2022-04-30

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.00070 mg/L 4.7%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2025
Nitrate
560 µg/L 5.6%
of the EPA limit 10000 µg/L
 8/30 SYR4 2012–2019
Lead
3.9 µg/L 26%
of the EPA limit 15 µg/L
 1/1 SYR4 2015
41 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicBariumBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDibromochloromethaneEthylene DibromideEthylbenzeneFluorideMercuryNitrate-NitriteNitriteSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Richard Frombly

Frequently asked questions about Mount Baker Water Association

Is Mount Baker Water Association tap water safe to drink?

EPA monitoring detected 3 contaminants in Mount Baker Water Association'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 Mount Baker Water Association's water?

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

How many people does Mount Baker Water Association serve?

Mount Baker Water Association reports serving 500 people in Washington, per its EPA record.

Has Mount Baker Water Association had any water quality violations?

The EPA has 196 violations on file for Mount Baker Water Association, of which 9 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.