Water Utility

Covington Water District

Location King County, Washington,
WA
Serves 52,143
Source Purchased surface water
PWS ID WA5341650

Overview

Contaminants Detected

Bromodichloromethane

Potential Effect: cancer
This Utility: 2.18 ppb No Legal Limit
36x
EWG's Health Guideline:
0.06 ppb

Chloroform

Potential Effect: cancer
This Utility: 17.4 ppb No Legal Limit
44x
EWG's Health Guideline:
0.4 ppb

Chromium (hexavalent)*

Potential Effect: cancer
This Utility: 0.0743 ppb No Legal Limit
3.7x
EWG's Health Guideline:
0.02 ppb

Dibromochloromethane

Potential Effect: cancer
This Utility: 0.392 ppb No Legal Limit
3.9x
EWG's Health Guideline:
0.1 ppb
This Utility: 6.84 ppb No Legal Limit
34x
EWG's Health Guideline:
0.2 ppb

Haloacetic acids (HAA5)

Potential Effect: cancer
This Utility: 13.9 ppb Legal Limit: 60 ppb
139x
EWG's Health Guideline:
0.1 ppb

Haloacetic acids (HAA9)*

Potential Effect: cancer
This Utility: 13 ppb No Legal Limit
217x
EWG's Health Guideline:
0.06 ppb
This Utility: 2.1 ppt Legal Limit: 10 ppb
2,100x
EWG's Health Guideline:
0.001 ppb
This Utility: 2.94 ppt Legal Limit: 4 ppb
9.8x
EWG's Health Guideline:
0.3 ppb

Perfluorooctanoic acid (PFOA)

Potential Effect: cancer
This Utility: 0.429 ppt Legal Limit: 4 ppb
4.8x
EWG's Health Guideline:
0.09 ppb
This Utility: 7.5 ppt No Legal Limit
1,071x
EWG's Health Guideline:
0.007 ppb

Total trihalomethanes (TTHMs)

Potential Effect: cancer
This Utility: 20 ppb Legal Limit: 80 ppb
133x
EWG's Health Guideline:
0.15 ppb

Trichloroacetic acid

Potential Effect: cancer
This Utility: 6.57 ppb No Legal Limit
66x
EWG's Health Guideline:
0.1 ppb
This Utility: 67.7 ppb No Legal Limit
EWG's Health Guideline:
210 ppb
This Utility: 17.1 ppb No Legal Limit
EWG's Health Guideline:
100 ppb
This Utility: 0.461 ppb No Legal Limit
EWG's Health Guideline:
53 ppb
This Utility: 11.1 ppt No Legal Limit
This Utility: 3.71 ppt No Legal Limit
EWG's Health Guideline:
2000 ppt
This Utility: 0.329 ppt No Legal Limit
EWG's Health Guideline:
1000 ppt
This Utility: 0.414 ppt No Legal Limit
EWG's Health Guideline:
1000 ppt
This Utility: 0.3 ppt No Legal Limit
EWG's Health Guideline:
1 ppt
This Utility: 0.986 ppt No Legal Limit
EWG's Health Guideline:
1000 ppt
This Utility: 0.0286 ppb No Legal Limit
EWG's Health Guideline:
1500 ppb
This Utility: 0.377 ppb No Legal Limit
EWG's Health Guideline:
21 ppb

Find a Filter

See which water filtration technologies are effective at reducing the contaminants detected in this utility's water supply.

Carbon Filters
Filters 12 contaminants exceeding guidelines (+7 others)

Can reduce the levels of many common contaminants.

Pros
  • Lower upfront cost
  • Reduced maintenance
Cons
  • Does not remove all contaminants
Reverse Osmosis
Filters 13 contaminants exceeding guidelines (+8 others)

Can reduce the levels of many common contaminants.

Pros
  • Most effective
Cons
  • Higher upfront cost
  • Requires more maintenance
  • Wastes water
Other Considerations
Ion Exchange
PROS: Softens hard water, Reduces some contaminants
CONS: Doesn't remove all contaminants
Whole-House Filters
PROS: Useful for reducing radiologicals and TCE
CONS: Expensive to install and maintain, Risk of bacterial contamination

Explore filter options for each contaminant. See which technologies are effective at reducing specific contaminants.

Contaminant Activated Carbon Reverse Osmosis Ion Exchange
Contaminants Above Health Guidelines
Bromodichloromethane
Chloroform
Chromium (hexavalent)*
Dibromochloromethane
Dichloroacetic acid
Haloacetic acids (HAA5)
Haloacetic acids (HAA9)*
Perfluorohexane sulfonate (PFHXS)
Perfluorooctane sulfonate (PFOS)
Perfluorooctanoic acid (PFOA)
Total PFOS and PFOA
Total trihalomethanes (TTHMs)
Trichloroacetic acid
Other Contaminants Detected
Chlorate*
Manganese
Monochloroacetic acid
PFOS + PFOA + PFHxS + PFNA
Perfluorobutane sulfonate (PFBS)
Perfluorobutanoic Acid (PFBA)
Perfluorohexanoic Acid (PFHxA)
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid (PFPeA)
Strontium*
Vanadium*

Protect your family's health.

Don't wait for your utility to improve. Get a free water analysis from AquaPura and find the right filtration system for your home.