C47/100
Shelton Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 33,213 residents · Washington
What's In Shelton's Tap Water?
73
Contaminants Tested
0
Exceed EPA Limits
2
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 300.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
SQUAXIN CONSOLIDATED
Population Served
1,500
Water Source
Groundwater
System ID
105300146
BEARDS COVE
Population Served
1,100
Water Source
Groundwater
System ID
WA5305100
FAWN LAKE MAINTENANCE COMM
Population Served
1,044
Water Source
Groundwater
System ID
WA5324713
HOODSPORT
Population Served
1,853
Water Source
Groundwater
System ID
WA5334100
LAKE LIMERICK WATER
Population Served
2,148
Water Source
Groundwater
System ID
WA5344150
SHELTON CITY OF
Population Served
17,575
Water Source
Groundwater
System ID
WA5378170
Shorecrest Estates Water Co
Population Served
1,321
Water Source
Groundwater
System ID
WA5378620
SUNNYSLOPE
Population Served
2,112
Water Source
Groundwater
System ID
WA5385550
TIMBERLAKE COMMUNITY CLUB INC
Population Served
2,337
Water Source
Groundwater
System ID
WA5388370
WASHINGTON CORRECTIONS CENTER
Population Served
2,223
Water Source
Groundwater
System ID
WA5393063
Frequently Asked Questions About Shelton Water
Is Shelton tap water safe to drink?
Shelton, Washington tap water receives a grade of C (47/100), which is considered fair. 1 contaminant(s) exceed EPA maximum contaminant levels and 610 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Shelton's water?
Of the 77 contaminants tested in Shelton's water supply, the most notable include Copper (90th percentile), Lead (90th percentile), chlorate. 1 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Shelton have any water quality violations?
Yes, Shelton has 610 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MR, Other. 18 of these are health-based violations, which are the most serious category.
Do I need a water filter in Shelton?
Based on EPA data, using a water filter in Shelton is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Shelton's tap water come from?
Shelton's drinking water is sourced from groundwater and supplied by SQUAXIN CONSOLIDATED and 9 other water system(s). The system serves approximately 33,213 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Shelton's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Shelton's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Shelton's water compare to other cities in Washington?
Shelton's water quality score of 47/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Washington state page to see how all cities in the state compare.
What should I do if I'm concerned about Shelton's water quality?
If you have concerns about Shelton's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (SQUAXIN CONSOLIDATED) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.