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Tap water quality report

North Star Water Assoc

EPA monitoring tested this supplier for 73 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
12
detected
140
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
81
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1992-03-01 → 1992-03-31
MCL Health-based Archived 1992-02-01 → 1992-02-29
MCL Health-based Archived 1992-02-01 → 1992-02-29
MCL Health-based Archived 1992-02-01 → 1992-02-29
MCL Health-based Archived 1992-02-01 → 1992-02-29
MCL Health-based Archived 1991-12-01 → 1991-12-31
MCL Health-based Archived 1991-12-01 → 1991-12-31
MCL Health-based Archived 1991-12-01 → 1991-12-31
MCL Health-based Archived 1991-12-01 → 1991-12-31
Other Monitoring Resolved 2017-07-01

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
0.00060 mg/L 4%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2024
Chloroform
19.54 µg/L
No EPA limit set
worst single sample: 20.5 µg/L
2/5 SYR4 2013–2017
Nitrate
120 µg/L 1.2%
of the EPA limit 10000 µg/L
 2/10 SYR4 2013–2019
TTHM
21.82 µg/L 27%
of the EPA limit 80 µg/L
worst single sample: 22.9 µg/L
2/2 SYR4 2013–2014
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 1/1 SYR4 2018
Barium
29 µg/L 1.5%
of the EPA limit 2000 µg/L
 1/1 SYR4 2018
Bromodichloromethane
2.4 µg/L
No EPA limit set
 1/5 SYR4 2013–2017
Dichloroacetic Acid
1.5 µg/L
No EPA limit set
 1/3 SYR4 2013–2017
Fluoride
430 µg/L 11%
of the EPA limit 4000 µg/L
 1/1 SYR4 2018
Nitrate-Nitrite
120 µg/L 1.2%
of the EPA limit 10000 µg/L
 1/1 SYR4 2018
Total Haloacetic Acids (HAA5)
3.5 µg/L 5.8%
of the EPA limit 60 µg/L
 1/3 SYR4 2013–2017
Trichloroacetic Acid
2 µg/L
No EPA limit set
 1/3 SYR4 2013–2017
61 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitritePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KENDRA CRISTELLI

Frequently asked questions about North Star Water Assoc

Is North Star Water Assoc tap water safe to drink?

EPA monitoring detected 12 contaminants in North Star Water Assoc'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 North Star Water Assoc's water?

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

How many people does North Star Water Assoc serve?

North Star Water Assoc reports serving 140 people in Washington, per its EPA record.

Has North Star Water Assoc had any water quality violations?

The EPA has 81 violations on file for North Star Water Assoc, 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.