Water Utility

San Diego County Water Authority

Location San Diego, California,
CA
Serves 3,276,208
Source Surface water
PWS ID CA3710042

Overview

Contaminants Detected

Arsenic

Potential Effect: Over Legal Limit
This Utility: 1.49 ppb Legal Limit: 10 ppb
373x
EWG's Health Guideline:
0.004 ppb

Bromate*

Potential Effect: cancer
This Utility: 2.39 ppb Legal Limit: 10 ppb
24x
EWG's Health Guideline:
0.1 ppb
This Utility: 1.68 ppb Legal Limit: 20 ppb
3.9x
EWG's Health Guideline:
0.43 ppb
This Utility: 37 ppb No Legal Limit
EWG's Health Guideline:
600 ppb
This Utility: 60.6 ppb Legal Limit: 2000 ppb
EWG's Health Guideline:
700 ppb
This Utility: 160.7 ppb No Legal Limit
This Utility: 272.8 ppb No Legal Limit
EWG's Health Guideline:
210 ppb

Chromium (hexavalent)*

Potential Effect: cancer
This Utility: 0.0358 ppb No Legal Limit
EWG's Health Guideline:
0.02 ppb
This Utility: 0.578 ppm Legal Limit: 4 ppm
This Utility: 0.106 ppb No Legal Limit
EWG's Health Guideline:
100 ppb

Nitrate

Potential Effect: cancer
This Utility: 0.145 ppm Legal Limit: 10 ppm
EWG's Health Guideline:
0.14 ppm
This Utility: 0.04 ppm Legal Limit: 10 ppm
EWG's Health Guideline:
0.14 ppm
This Utility: 0.275 ppt No Legal Limit
EWG's Health Guideline:
1000 ppt
This Utility: 0.25 ppt Legal Limit: 4 ppt
EWG's Health Guideline:
0.3 ppt
This Utility: 0.6 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 1 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 2 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
Bromate*
Other Contaminants Detected
Aluminum
Barium
Bromide
Chlorate*
Chromium (hexavalent)*
Fluoride
Manganese
Nitrate
Nitrate and nitrite
Perfluorohexanoic Acid (PFHxA)
Perfluorooctane sulfonate (PFOS)
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.