Water Utility

Los Angeles Department of Water and Power

Location Los Angeles, California,
CA
Serves 3,868,811
Source Surface water
PWS ID CA1910067

Overview

Contaminants Detected

Arsenic

Potential Effect: Over Legal Limit
This Utility: 2.29 ppb Legal Limit: 10 ppb
572x
EWG's Health Guideline:
0.004 ppb

Bromate*

Potential Effect: cancer
This Utility: 2.8 ppb Legal Limit: 10 ppb
28x
EWG's Health Guideline:
0.1 ppb

Chromium (hexavalent)*

Potential Effect: cancer
This Utility: 0.248 ppb No Legal Limit
12x
EWG's Health Guideline:
0.02 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: 11 ppb No Legal Limit
184x
EWG's Health Guideline:
0.06 ppb

Nitrate

Potential Effect: cancer
This Utility: 1.71 ppm Legal Limit: 10 ppb
12x
EWG's Health Guideline:
0.14 ppb
This Utility: 0.909 ppm Legal Limit: 10 ppb
6.5x
EWG's Health Guideline:
0.14 ppb

Total trihalomethanes (TTHMs)

Potential Effect: cancer
This Utility: 27.1 ppb Legal Limit: 80 ppb
181x
EWG's Health Guideline:
0.15 ppb
This Utility: 3.04 ppb Legal Limit: 20 ppb
7.1x
EWG's Health Guideline:
0.43 ppb
This Utility: 0.000009 ppb No Legal Limit
EWG's Health Guideline:
3 ppb
This Utility: 0.0207 ppb No Legal Limit
EWG's Health Guideline:
0.35 ppb
This Utility: 99.5 ppb No Legal Limit
This Utility: 0.0174 ppb No Legal Limit
EWG's Health Guideline:
0.06 ppb
This Utility: 77.3 ppb No Legal Limit
EWG's Health Guideline:
210 ppb
This Utility: 0.0401 ppb No Legal Limit
This Utility: 0.734 ppm Legal Limit: 4 ppm
This Utility: 57.6 ppb No Legal Limit
This Utility: 0.065 ppb No Legal Limit
EWG's Health Guideline:
100 ppb
This Utility: 5.16 ppb No Legal Limit
EWG's Health Guideline:
40 ppb
This Utility: 0.538 ppb No Legal Limit
EWG's Health Guideline:
1500 ppb

Tetrachloroethylene (perchloroethylene)

Potential Effect: cancer
This Utility: 0.00821 ppb Legal Limit: 5 ppb
EWG's Health Guideline:
0.06 ppb
This Utility: 0.266 ppb Legal Limit: 5 ppb
EWG's Health Guideline:
0.4 ppb
This Utility: 1.31 ppb No Legal Limit
EWG's Health Guideline:
21 ppb
This Utility: 0.0005 ppb No Legal Limit

Find a Filter

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

Carbon Filters
Filters 4 contaminants exceeding guidelines (+6 others)

Can reduce the levels of many common contaminants.

Pros
  • Lower upfront cost
  • Reduced maintenance
Cons
  • Does not remove all contaminants
Reverse Osmosis
Filters 8 contaminants exceeding guidelines (+11 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
Bromate*
Chromium (hexavalent)*
Haloacetic acids (HAA5)
Haloacetic acids (HAA9)*
Nitrate
Nitrate and nitrite
Total trihalomethanes (TTHMs)
Other Contaminants Detected
1,1-Dichloroethane
1,4-Dioxane
Bromide
Bromochloromethane
Chlorate*
Chlorodifluoromethane
Fluoride
Lithium
Manganese
Molybdenum
Strontium*
Tetrachloroethylene (perchloroethylene)
Trichloroethylene
Vanadium*
o-toluidine

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.