Water Quality Report · Updated October 07, 2026
SNO PUD 1 - LAKE STEVENS
SNO PUD 1 - LAKE STEVENS delivers tap water graded C (70/100) by TapWaterSafety.org. The utility serves approximately 67,710 residents in Everett, Washington using surface water (purchased). The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Arsenic significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline.
Is Everett tap water safe to drink?
SNO PUD 1 - LAKE STEVENS delivers tap water that earns a grade of C (70/100) from TapWaterSafety.org — an average rating, with several contaminants above health guidelines but generally compliant with US legal limits.
The utility serves 67,710 residents in Everett, drawing from surface water (purchased).
Public testing data identifies 9 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Arsenic, Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Trichloroacetic acid, Chloroform, Dichloroacetic acid, Bromodichloromethane, Chromium (hexavalent). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for SNO PUD 1 - LAKE STEVENS (system ID WA5380907) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Consumer Confidence Rule | Other (e.g. public notice) | 07/01/2023 | Resolved |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for Everett residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for SNO PUD 1 - LAKE STEVENS.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 34.0 ppb, 567x above the EWG health guideline of 0.06 ppb.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 1.6 ppb, 400x above the EWG health guideline of 0.004 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 30.5 ppb, 305x above the EWG health guideline of 0.1 ppb.
Contact SNO PUD 1 - LAKE STEVENS
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for Everett
Filters matched to the specific contaminants in this water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 70/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
34.0 ppb | 0.06 | — | — | — | — | — | 567× over |
| Arsenic Heavy metal |
1.6 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 400× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
30.5 ppb | 0.1 | 60.0 | 60 | — | — | — | 305× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
31.2 ppb | 0.15 | 80.0 | 100 | — | — | — | 208× over |
| Trichloroacetic acid Disinfection byproduct |
18.2 ppb | 0.1 | — | — | — | — | — | 182× over |
| Chloroform Disinfection byproduct |
29.1 ppb | 0.4 | — | — | — | — | — | 73× over |
| Dichloroacetic acid Disinfection byproduct |
11.2 ppb | 0.2 | — | — | — | — | — | 56× over |
| Bromodichloromethane Disinfection byproduct |
1.5 ppb | 0.06 | — | — | — | — | — | 25× over |
| Chromium (hexavalent) Heavy metal |
0.2 ppb | 0.02 | — | — | — | — | — | 10× over |
| Chlorate Disinfection byproduct |
60.6 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Dibromochloromethane Disinfection byproduct |
0.00636 ppb | 0.1 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
2.69 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
1.15 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.02 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.0102 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0395 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| 4-Androstene-3,17-dione* Other |
0.095 ppt | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.168 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
SNO PUD 1 - LAKE STEVENS service area
This water system serves 1 community in Snohomish County, Washington. Click any city for its dedicated tap water quality page.
Find the right filter for Everett water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.