Water Utility

California Water Service (CWS) - King City

Location King City, California,
CA
Serves 16,044
Source Groundwater
PWS ID CA2710009

Overview

Contaminants Detected

Arsenic

Potential Effect: Over Legal Limit
↗
This Utility: 0.383 ppb Legal Limit: 10 ppb
96x
EWG's Health Guideline:
0.004 ppb

Bromodichloromethane

Potential Effect: cancer
↗
This Utility: 1.95 ppb No Legal Limit
32x
EWG's Health Guideline:
0.06 ppb
This Utility: 3.22 ppb No Legal Limit
6.4x
EWG's Health Guideline:
0.5 ppb

Chromium (hexavalent)*

Potential Effect: cancer
↗
This Utility: 0.793 ppb No Legal Limit
40x
EWG's Health Guideline:
0.02 ppb
This Utility: 1.42 ppb No Legal Limit
47x
EWG's Health Guideline:
0.03 ppb

Dibromochloromethane

Potential Effect: cancer
↗
This Utility: 4.02 ppb No Legal Limit
40x
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: 3.88 ppb No Legal Limit
65x
EWG's Health Guideline:
0.06 ppb

Nitrate

Potential Effect: cancer
↗
This Utility: 3.05 ppm Legal Limit: 10 ppb
22x
EWG's Health Guideline:
0.14 ppb
This Utility: 2.04 ppm Legal Limit: 10 ppb
15x
EWG's Health Guideline:
0.14 ppb

Total trihalomethanes (TTHMs)

Potential Effect: cancer
↗
This Utility: 8.92 ppb Legal Limit: 80 ppb
59x
EWG's Health Guideline:
0.15 ppb
This Utility: 161.7 ppb No Legal Limit
EWG's Health Guideline:
210 ppb

Chloroform

Potential Effect: cancer
↗
This Utility: 0.453 ppb No Legal Limit
EWG's Health Guideline:
0.4 ppb
This Utility: 0.233 ppm Legal Limit: 4 ppm
This Utility: 0.0708 ppb No Legal Limit
EWG's Health Guideline:
100 ppb
This Utility: 5.98 ppb No Legal Limit
EWG's Health Guideline:
40 ppb
This Utility: 0.55 ppb Legal Limit: 50 ppb
EWG's Health Guideline:
30 ppb
This Utility: 0.296 ppb No Legal Limit
EWG's Health Guideline:
1500 ppb
This Utility: 0.34 ppb Legal Limit: 20 ppb
EWG's Health Guideline:
0.43 ppb
This Utility: 4.03 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 (+1 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 ✓ ✓ ✕
Bromoform ✓ ✓ ✕
Chromium (hexavalent)* ✕ ✓ ✓
Dibromoacetic acid ✓ ✓ ✕
Dibromochloromethane ✓ ✓ ✕
Haloacetic acids (HAA5) ✓ ✓ ✕
Haloacetic acids (HAA9)* ✓ ✓ ✕
Nitrate ✕ ✓ ✓
Nitrate and nitrite ✕ ✓ ✓
Total trihalomethanes (TTHMs) ✓ ✓ ✕
Other Contaminants Detected
Chlorate* ✕ ✕ ✕
Chloroform ✓ ✓ ✕
Fluoride ✕ ✓ ✕
Manganese ✕ ✕ ✓
Molybdenum ✕ ✓ ✓
Selenium ✕ ✓ ✕
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.