Water Quality: Shelton, WA

57 water systems • 40,011 people served

Multiple Health Violations
524
Total Violations
26
Health-Based Violations
57
Water Systems
40,011
Population Served

Water Quality Summary

Shelton is served by 57 public water systems with a combined service population of 40,011 people, and has 524 EPA Safe Drinking Water Act violations on record. Critically, 26 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Shelton's violation count is 223% above the national average for Washington. Contaminants associated with violations include Barium, Chlorine Dioxide, Disinfection Byproducts, E. coli.

Contaminants Found

Barium

Increases blood pressure and causes cardiovascular effects with long-term exposure.

Common source: Natural rock deposits, oil drilling operations, coal power plant waste

EPA limit: 2 mg/L

Chlorine Dioxide

Can cause anemia in infants and young children; may cause nervous system effects at high levels.

Common source: Water treatment disinfectant used to control taste, odor, and microorganisms

EPA limit: 0.8 mg/L

Disinfection Byproducts

Broad category of chemicals formed during disinfection, associated with increased cancer risk and adverse reproductive effects.

Common source: Reaction of disinfectants (chlorine, ozone, chloramines) with organic matter

E. coli

Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.

Common source: Fecal contamination from humans or animals entering the water supply

EPA limit: Zero (no E. coli permitted in drinking water)

Water Systems Serving Shelton

System Name PWSID Source Population Violations
SHELTON CITY OF WA5378170 Groundwater 17,575 4
TIMBERLAKE COMMUNITY CLUB INC WA5388370 Groundwater 2,337 0
WASHINGTON CORRECTIONS CENTER WA5393063 Groundwater 2,223 0
LAKE LIMERICK WATER WA5344150 Groundwater 2,148 12
SUNNYSLOPE WA5385550 Groundwater 2,112 5
HOODSPORT WA5334100 Groundwater 1,853 4
Shorecrest Estates Water Co WA5378620 Groundwater 1,321 8
BEARDS COVE WA5305100 Groundwater 1,100 6
FAWN LAKE MAINTENANCE COMM WA5324713 Groundwater 1,044 31
OAK PARK WA5362675 Groundwater 695 59
TWANOH FALLS BEACH CLUB WA5310751 Groundwater 481 8
HARTSTENE POINTE WA5331569 Groundwater 460 4
PORT OF ALLYN WA5368790 Groundwater 397 40
DELPHI WA5318643 Groundwater 381 1
HOOD CANAL WA5334050 Groundwater 368 0
Tahuya River Valley Water District WA5387115 Groundwater 367 4
LAKE LUCINDA COMMUNITY CLUB WA5344175 Groundwater 360 1
LAKE ARROWHEAD WA5343600 Groundwater 343 0
EMERALD LAKE WA5323294 Groundwater 331 2
RUSTLEWOOD WA5375027 Groundwater 322 4
ISLAND LAKE MANOR WA5336180 Groundwater 233 0
COUGAR RIDGE WA5324006 Groundwater 216 0
TRAILS END WATER DISTRICT WA5389055 Groundwater 211 88
HIGHLAND PARK WA5332820 Groundwater 180 0
LAKEWOOD HEIGHTS WA5317999 Groundwater 170 3
PIRATES COVE COUNTRY CLUB WA5367740 Groundwater 168 0
RAINBOW LAKE WA5370791 Groundwater 168 1
LAUREL PARK COMMUNITY LLC WA5346275 Groundwater 165 2
BEACON POINT COMMUNITY CLUB WA5305025 Groundwater 158 0
SHADOWOOD WA5313584 Groundwater 154 3
DAYTON TRAILS WA5302715 Groundwater 148 0
WILDAIRE ESTATES WA5396850 Groundwater 146 20
EVERGREEN MOBILE HOMEOWNERS CO-OP WA5324154 Groundwater 140 44
AYOCK BEACH IMPROVEMENT WA5303450 Groundwater 129 3
SHORE HILL WA5378650 Groundwater 101 10
HARSTENE RETREAT WA5331572 Groundwater 88 0
COOPER POINT WATER CO WA5314800 Groundwater 85 2
MINERVA TERRACE WA5355070 Groundwater 85 0
LAKE LAWRENCE MOBILE HOME PARK WA5344130 Groundwater 80 3
EDGEWATER BEACH WATER CO WA5322416 Groundwater 78 0
WESTERN AIRPARK WA5395057 Groundwater 78 3
MADRONA PARK WA5305793 Groundwater 73 4
RAE LAKE WA5370755 Groundwater 73 5
HOLIDAY ACRES WA5333668 Groundwater 65 5
Sylvan Terrace Condominiums WA5303010 Groundwater 64 24
PEBBLE BEACH WA5366700 Groundwater 64 2
HAMMA RIDGE WA5305867 Groundwater 63 1
PARKWOOD APARTMENTS WA5318160 Groundwater 60 15
CEDAR PARK WA5311975 Groundwater 53 1
Ripplewood Tracts WA5372620 Groundwater 45 3
Allyn Carey WA53AC551 Groundwater 45 4
OLYMPIC VISTA CLUB COMMUNITY WATER WA5363655 Groundwater 41 45
PRINE DRIVE APARTMENTS WA5326774 Groundwater 40 1
KAMILCHE POINT COMMUNITY CLUB WA5337590 Groundwater 39 0
VALLEY VIEW MOBILE HOME PARK WA5343054 Groundwater 30 18
ELMA EVERGREEN VILLAGE WA5324155 Groundwater 29 10
Queen Anne Water Works LLC WA5304212 Groundwater 28 11

Concerned About Your Water?

A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.

Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.

Other Cities in Washington

Seattle 28 violations • 1,160,858 served Tacoma 477 violations • 628,246 served Vancouver 125 violations • 495,151 served Spokane 1010 violations • 426,660 served Kent 41 violations • 359,974 served Bellevue 1 violations • 317,330 served Everett 115 violations • 282,350 served Lynnwood 16 violations • 268,204 served

View all cities in Washington →

Data Sources

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.

Verify at epa.gov • Search ECHO for WA