Stevens Pass Water (WA) Water Quality Stevens Pass Water is a small public water system in EPA region 10 that provides tap water for the 98288 zip codes. It has 3 facilities where the water supply was tested for 57 chemical contaminants that impact tap water quality and human health.
The maximum reported level of HAA5 (five regulated haloacetic acids) was 130.8 µg/L. Some (4 of 8 or 50%) of the latest water samples showed levels of HAA5 (five regulated haloacetic acids) that were at or above unsafe concentration levels. The maximum reported level of Manganese was 1.1 µg/L. There were 2 contamintants found in the Stevens Pass Water water supply at levels that were above the minimum reporting level. 1 of the contaminants were above the reference level, which means they may pose a risk to human health.
Contaminants Jump To Contaminant 1-butanol (4) 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (1) 17-alpha-ethynylestradiol (4) 17-beta-estradiol (4) 1H,1H,2H,2H-perfluorodecane sulfonic acid (1) 1H,1H,2H,2H-perfluorohexane sulfonic acid (1) 1H,1H,2H,2H-perfluorooctane sulfonic acid (1) 2-methoxyethanol (4) 2-propen-1-ol (Allyl Alcohol) (4) 4,8-dioxa-3H-perfluorononanoic acid (1) 4-androstene-3,17-dione (4) 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (1) alpha-hexachlorocyclohexane (4) Butylated Hydroxyanisole (4) chlorpyrifos (4) dimethipin (4) equilin (4) estriol (4) estrone (4) ethoprop (4) Germanium (4) HAA5 (five regulated haloacetic acids) (8) HAA6Br (six brominated haloacetic acids) (8) HAA9 (nine haloacetic acids) (8) hexafluoropropylene oxide dimer acid (GenX) (1) lithium (1) Manganese (4) N-ethyl perfluorooctanesulfonamidoacetic acid (1) N-methyl perfluorooctanesulfonamidoacetic acid (1) nonafluoro-3,6-dioxaheptanoic acid (1) o-toluidine (4) oxyfluorfen (4) perfluoro(2-ethoxyethane)sulfonic acid (1) perfluoro-3-methoxypropanoic acid (1) perfluoro-4-methoxybutanoic acid (1) perfluorobutanesulfonic acid (1) perfluorobutanoic acid (1) perfluorodecanoic acid (1) perfluorododecanoic acid (1) perfluoroheptanesulfonic acid (1) perfluoroheptanoic acid (1) perfluorohexanesulfonic acid (1) perfluorohexanoic acid (1) perfluorononanoic acid (1) perfluorooctanesulfonic acid (1) perfluorooctanoic acid (1) perfluoropentanesulfonic acid (1) perfluoropentanoic acid (1) perfluorotetradecanoic acid (1) perfluorotridecanoic acid (1) perfluoroundecanoic acid (1) profenofos (4) quinoline (4) tebuconazole (4) testosterone (4) Total Permethrin (4) tribufos (4)
Treatment Plant sample tap - post treatment
<2 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<2 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<2 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<2 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.005 µg/L
Below Reporting Level
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Sample Tap Post Treatment
<0.0009 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0009 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0009 µg/L
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Sample Tap Post Treatment
<0.0009 µg/L
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Sample Tap Post Treatment
<0.0004 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0004 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0004 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0004 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.005 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.005 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.4 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.4 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.4 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.4 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.5 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.5 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.5 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.5 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Sample Tap Post Treatment
<0.0003 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0003 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0003 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.002 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.01 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.01 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.01 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.01 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.03 µg/L
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Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.2 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.2 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.2 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.2 µg/L
Below Reporting Level
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Sample Tap Post Treatment
<0.004 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.004 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.004 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.004 µg/L
Below Reporting Level
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Sample Tap Post Treatment
<0.0008 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0008 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0008 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0008 µg/L
Below Reporting Level
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Sample Tap Post Treatment
<0.002 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.002 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.002 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.002 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.03 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.3 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.3 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.3 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.3 µg/L
Below Reporting Level
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WW A Frame
100.2 µg/L
☠️ Exceeds Reference Level by 40.2 µg/L
FS Guard Shack
98 µg/L
☠️ Exceeds Reference Level by 38 µg/L
WW A Frame
40 µg/L
⚠️ Exceeds 50% of Reference Level
FS Guard Shack
40 µg/L
⚠️ Exceeds 50% of Reference Level
FS Guard Shack
130.8 µg/L
☠️ Exceeds Reference Level by 70.8 µg/L
WW A Frame
125.1 µg/L
☠️ Exceeds Reference Level by 65.1 µg/L
WW A Frame
55 µg/L
❗ Exceeds 80% of Reference Level
FS Guard Shack
48 µg/L
⚠️ Exceeds 50% of Reference Level
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FS Guard Shack
40.34 µg/L
FS Guard Shack
131.32 µg/L
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Treatment Plant sample tap - post treatment
<0.005 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<9 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
0.88 µg/L
Meets Reporting Threshold
Treatment Plant sample tap - post treatment
1.1 µg/L
Meets Reporting Threshold
Treatment Plant sample tap - post treatment
0.47 µg/L
Meets Reporting Threshold
Treatment Plant sample tap - post treatment
0.65 µg/L
Meets Reporting Threshold
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Treatment Plant sample tap - post treatment
<0.005 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.006 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.02 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.007 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.007 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.007 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.007 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.05 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.05 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.05 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.05 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.004 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.005 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.004 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.004 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.004 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.004 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.003 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.008 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.007 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.002 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.3 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.3 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.3 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.3 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.02 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.02 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.02 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.02 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.2 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.2 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.2 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.2 µg/L
Below Reporting Level
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Sample Tap Post Treatment
<0.0001 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0001 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0001 µg/L
Below Reporting Level
Sample Tap Post Treatment
<0.0001 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.04 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.04 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.04 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.04 µg/L
Below Reporting Level
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Treatment Plant sample tap - post treatment
<0.07 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.07 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.07 µg/L
Below Reporting Level
Treatment Plant sample tap - post treatment
<0.07 µg/L
Below Reporting Level
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Sampling Facilities Treatment Plant
Surface Water (SW) Treatment Plant sample tap - post treatmentEntry Point to the Distribution System (EP)
Distribution System
Surface Water (SW) WW A FrameDistribution System (DS)
FS Guard ShackDistribution System (DS)
Water Treatment Plant
Surface Water (SW) Sample Tap Post TreatmentEntry Point to the Distribution System (EP)
FAQ Is Stevens Pass Water tap water safe to drink? When was Stevens Pass Water last tested for water contamination? The latest water samples were taken on February 19th, 2025.
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