Water Utility

City of Oak Harbor

Location Oak Harbor, Washington,
WA
Serves 23,587
Source Purchased surface water
PWS ID WA5362650

Overview

Contaminants Detected

Arsenic

Potential Effect: Over Legal Limit
This Utility: 1.8 ppb Legal Limit: 10 ppb
450x
EWG's Health Guideline:
0.004 ppb

Bromodichloromethane

Potential Effect: cancer
This Utility: 1.06 ppb No Legal Limit
18x
EWG's Health Guideline:
0.06 ppb

Chloroform

Potential Effect: cancer
This Utility: 17 ppb No Legal Limit
43x
EWG's Health Guideline:
0.4 ppb

Chromium (hexavalent)*

Potential Effect: cancer
This Utility: 0.0926 ppb No Legal Limit
4.6x
EWG's Health Guideline:
0.02 ppb
This Utility: 0.0652 ppb No Legal Limit
2.2x
EWG's Health Guideline:
0.03 ppb
This Utility: 6.65 ppb No Legal Limit
33x
EWG's Health Guideline:
0.2 ppb

Haloacetic acids (HAA5)

Potential Effect: cancer
This Utility: 14.4 ppb Legal Limit: 60 ppb
144x
EWG's Health Guideline:
0.1 ppb

Haloacetic acids (HAA9)*

Potential Effect: cancer
This Utility: 15.2 ppb No Legal Limit
253x
EWG's Health Guideline:
0.06 ppb

Nitrate

Potential Effect: cancer
This Utility: 0.378 ppm Legal Limit: 10 ppb
2.7x
EWG's Health Guideline:
0.14 ppb

Total trihalomethanes (TTHMs)

Potential Effect: cancer
This Utility: 19.1 ppb Legal Limit: 80 ppb
127x
EWG's Health Guideline:
0.15 ppb

Trichloroacetic acid

Potential Effect: cancer
This Utility: 7.68 ppb No Legal Limit
77x
EWG's Health Guideline:
0.1 ppb
This Utility: 0.14 ppb No Legal Limit
EWG's Health Guideline:
0.5 ppb

Dibromochloromethane

Potential Effect: cancer
This Utility: 0.088 ppb No Legal Limit
EWG's Health Guideline:
0.1 ppb
This Utility: 0.83 ppm Legal Limit: 4 ppm
This Utility: 13 ppb No Legal Limit
EWG's Health Guideline:
100 ppb
This Utility: 0.0435 ppb No Legal Limit
EWG's Health Guideline:
25 ppb
This Utility: 0.0343 ppb No Legal Limit
EWG's Health Guideline:
1500 ppb
This Utility: 0.109 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 8 contaminants exceeding guidelines (+3 others)

Can reduce the levels of many common contaminants.

Pros
  • Lower upfront cost
  • Reduced maintenance
Cons
  • Does not remove all contaminants
Reverse Osmosis
Filters 11 contaminants exceeding guidelines (+5 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
Arsenic
Bromodichloromethane
Chloroform
Chromium (hexavalent)*
Dibromoacetic acid
Dichloroacetic acid
Haloacetic acids (HAA5)
Haloacetic acids (HAA9)*
Nitrate
Total trihalomethanes (TTHMs)
Trichloroacetic acid
Other Contaminants Detected
Bromoform
Dibromochloromethane
Fluoride
Manganese
Monobromoacetic acid*
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.