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Tap water quality report

Sno Pud 1 - Sunday Lake

EPA monitoring tested this supplier for 35 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

35
contaminants tested
9
detected
561
people served
4
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Snohomish

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.

4
health-based violations
30
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1995-07-01 → 1995-07-31
MCL Health-based Archived 1992-12-01 → 1992-12-31
MCL Health-based Archived 1992-11-01 → 1992-11-30
MCL Health-based Archived 1992-10-01 → 1992-10-31
Other Monitoring Resolved 2023-07-01
Other Monitoring Resolved 2021-07-01
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31

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
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2020
Bromodichloromethane
6.94 µg/L
No EPA limit set
worst single sample: 7.3 µg/L
9/9 SYR4 2012–2019
Chloroform
43 µg/L
No EPA limit set
worst single sample: 44.4 µg/L
9/9 SYR4 2012–2019
TTHM
50.76 µg/L 63%
of the EPA limit 80 µg/L
worst single sample: 52.6 µg/L
9/9 SYR4 2012–2019
Dibromochloromethane
0.8650 µg/L
No EPA limit set
worst single sample: 0.9000 µg/L
8/9 SYR4 2012–2019
Dichloroacetic Acid
10.055 µg/L
No EPA limit set
worst single sample: 10.3 µg/L
8/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
22.04 µg/L 37%
of the EPA limit 60 µg/L
worst single sample: 22.6 µg/L
8/8 SYR4 2012–2019
Trichloroacetic Acid
12.16 µg/L
No EPA limit set
worst single sample: 12.3 µg/L
8/8 SYR4 2012–2019
Nitrate
120 µg/L 1.2%
of the EPA limit 10000 µg/L
 4/12 SYR4 2013–2018
26 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneBenzeneBromoformChlorobenzeneCarbon TetrachlorideDichloromethaneDibromoacetic AcidEthylbenzeneGross Beta Particle ActivityMonobromoacetic AcidMonochloroacetic AcidStyreneTetrachloroethyleneTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Karen Latimer

Frequently asked questions about Sno Pud 1 - Sunday Lake

Is Sno Pud 1 - Sunday Lake tap water safe to drink?

EPA monitoring detected 9 contaminants in Sno Pud 1 - Sunday Lake'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 Sno Pud 1 - Sunday Lake's water?

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

How many people does Sno Pud 1 - Sunday Lake serve?

Sno Pud 1 - Sunday Lake reports serving 561 people in Washington, per its EPA record.

Has Sno Pud 1 - Sunday Lake had any water quality violations?

The EPA has 30 violations on file for Sno Pud 1 - Sunday Lake, of which 4 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.