Water Utility

Golden State Water Company (GSWC) -Willowbrook

Location Willowbrook, California,
CA
Serves 10,615
Source Purchased surface water
PWS ID CA1910072

Overview

Contaminants Detected

Arsenic

Potential Effect: Over Legal Limit
This Utility: 0.16 ppb Legal Limit: 10 ppb
40x
EWG's Health Guideline:
0.004 ppb

Bromodichloromethane

Potential Effect: cancer
This Utility: 0.198 ppb No Legal Limit
3.3x
EWG's Health Guideline:
0.06 ppb
This Utility: 0.0719 ppb No Legal Limit
2.4x
EWG's Health Guideline:
0.03 ppb

Dibromochloromethane

Potential Effect: cancer
This Utility: 0.855 ppb No Legal Limit
8.5x
EWG's Health Guideline:
0.1 ppb

Haloacetic acids (HAA5)

Potential Effect: cancer
This Utility: 36.2 ppb Legal Limit: 60 ppb
362x
EWG's Health Guideline:
0.1 ppb

Haloacetic acids (HAA9)*

Potential Effect: cancer
This Utility: 1.24 ppb No Legal Limit
21x
EWG's Health Guideline:
0.06 ppb
This Utility: 0.287 ppm Legal Limit: 10 ppb
2x
EWG's Health Guideline:
0.14 ppb
This Utility: 0.982 ppt Legal Limit: 4 ppb
3.3x
EWG's Health Guideline:
0.3 ppb

Total trihalomethanes (TTHMs)

Potential Effect: cancer
This Utility: 1.98 ppb Legal Limit: 80 ppb
13x
EWG's Health Guideline:
0.15 ppb
This Utility: 4.05 ppb Legal Limit: 20 ppb
9.4x
EWG's Health Guideline:
0.43 ppb
This Utility: 77.5 ppb No Legal Limit
EWG's Health Guideline:
600 ppb
This Utility: 105 ppb Legal Limit: 2000 ppb
EWG's Health Guideline:
700 ppb
This Utility: 0.524 ppb No Legal Limit
EWG's Health Guideline:
0.5 ppb

Chloroform

Potential Effect: cancer
This Utility: 0.0393 ppb No Legal Limit
EWG's Health Guideline:
0.4 ppb
This Utility: 0.408 ppm Legal Limit: 4 ppm
This Utility: 3.27 ppb No Legal Limit
This Utility: 0.883 ppb No Legal Limit
EWG's Health Guideline:
100 ppb

Nitrate

Potential Effect: cancer
This Utility: 0.192 ppm Legal Limit: 10 ppm
EWG's Health Guideline:
0.14 ppm

Radium, combined (-226 and -228)

Potential Effect: cancer
This Utility: 0.07 ppb Legal Limit: 5 ppb
EWG's Health Guideline:
0.05 ppb

Tetrachloroethylene (perchloroethylene)

Potential Effect: cancer
This Utility: 0.085 ppb Legal Limit: 5 ppb
EWG's Health Guideline:
0.06 ppb
This Utility: 0.763 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 7 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 9 contaminants exceeding guidelines (+9 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
Dibromoacetic acid
Dibromochloromethane
Haloacetic acids (HAA5)
Haloacetic acids (HAA9)*
Nitrate and nitrite
Perfluorooctane sulfonate (PFOS)
Total trihalomethanes (TTHMs)
Other Contaminants Detected
Aluminum
Barium
Bromoform
Chloroform
Fluoride
Lithium
Manganese
Nitrate
Radium, combined (-226 and -228)
Tetrachloroethylene (perchloroethylene)
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.