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Tap water quality report

Ferndale

EPA monitoring tested this supplier for 105 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

105
contaminants tested
18
detected
19,305
people served
0
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
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.

0
health-based violations
20
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2024-07-01
Other Monitoring Resolved 2016-07-01
MR Monitoring Resolved 2014-10-01 → 2014-12-31
MR Monitoring Resolved 2014-10-01 → 2014-12-31
Other Monitoring Resolved 2014-07-01
MR Monitoring Resolved 2014-07-01 → 2014-09-30
MR Monitoring Resolved 2014-07-01 → 2014-09-30
MR Monitoring Resolved 2014-04-01 → 2014-06-30
MR Monitoring Resolved 2014-04-01 → 2014-06-30
Other Monitoring Resolved 1999-10-19 → 1999-12-31

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
Bromoform
58.42 µg/L
No EPA limit set
worst single sample: 59.6 µg/L
43/43 SYR4 2012–2019
TTHM
70.94 µg/L 89%
of the EPA limit 80 µg/L
worst single sample: 73.2 µg/L
43/43 SYR4 2012–2019
Bromodichloromethane
4.095 µg/L
No EPA limit set
worst single sample: 6.7 µg/L
42/42 SYR4 2012–2019
Dibromochloromethane
11.9 µg/L
No EPA limit set
worst single sample: 18.3 µg/L
41/41 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
12.1 µg/L 20%
of the EPA limit 60 µg/L
worst single sample: 13.5 µg/L
41/41 SYR4 2012–2019
Dibromoacetic Acid
10.025 µg/L
No EPA limit set
worst single sample: 10.7 µg/L
40/40 SYR4 2012–2019
Chloroform
1.765 µg/L
No EPA limit set
worst single sample: 3 µg/L
20/42 SYR4 2012–2019
Lead
0.0056 mg/L 37%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2024
Dichloroacetic Acid
2.95 µg/L
No EPA limit set
worst single sample: 3 µg/L
6/41 SYR4 2012–2019
Arsenic
5 µg/L 50%
of the EPA limit 10 µg/L
 5/5 SYR4 2012–2016
Barium
70 µg/L 3.5%
of the EPA limit 2000 µg/L
 5/5 SYR4 2012–2016
Copper
31.4 µg/L 2.4%
of the EPA limit 1300 µg/L
worst single sample: 35 µg/L
5/5 SYR4 2012–2016
Fluoride
250 µg/L 6.3%
of the EPA limit 4000 µg/L
 5/5 SYR4 2012–2016
Gross Beta Particle Activity
7.132 pCi/L
No EPA limit set
worst single sample: 7.24 pCi/L
5/5 SYR4 2015
Monobromoacetic Acid
1.46 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
5/41 SYR4 2012–2019
Chromium
7 µg/L 7%
of the EPA limit 100 µg/L
 2/5 SYR4 2012–2016
Monochloroacetic Acid
2.39 µg/L
No EPA limit set
worst single sample: 2.4 µg/L
2/41 SYR4 2012–2019
Selenium
5 µg/L 10%
of the EPA limit 50 µg/L
 2/5 SYR4 2012–2016
87 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Michael Olinger

Frequently asked questions about Ferndale

Is Ferndale tap water safe to drink?

EPA monitoring detected 18 contaminants in Ferndale'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 Ferndale's water?

EPA monitoring detected Bromoform, TTHM, Bromodichloromethane, Dibromochloromethane, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Ferndale serve?

Ferndale reports serving 19,305 people in Washington, per its EPA record.

Has Ferndale had any water quality violations?

The EPA has 20 violations on file for Ferndale, 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.