Overview
Legal does not necessarily equal safe.
- Getting a passing grade from the federal government does not mean the water meets the latest health guidelines.
- Legal limits for contaminants in tap water have not been updated in almost 20 years.
- The best way to ensure clean tap water is to keep pollution out of source water in the first place.
AquaPura's analysis shows 22 contaminant(s) detected in California Water Service - Livermore's water exceed recommended health guidelines, though they may be within legal limits set by the EPA.
Contaminants Detected
This Utility: 1.42 ppb
Legal Limit: 10 ppb
355x
EWG's Health Guideline:
0.004 ppb
0.004 ppb
This Utility: 0.241 ppb
Legal Limit: 10 ppb
2.4x
EWG's Health Guideline:
0.1 ppb
0.1 ppb
Bromodichloromethane
Potential Effect: cancer
This Utility: 8.63 ppb
No Legal Limit
144x
EWG's Health Guideline:
0.06 ppb
0.06 ppb
Chloroform
Potential Effect: cancer
This Utility: 7.43 ppb
No Legal Limit
19x
EWG's Health Guideline:
0.4 ppb
0.4 ppb
Chromium (hexavalent)*
Potential Effect: cancer
This Utility: 4.39 ppb
No Legal Limit
220x
EWG's Health Guideline:
0.02 ppb
0.02 ppb
Dibromochloromethane
Potential Effect: cancer
This Utility: 10 ppb
No Legal Limit
100x
EWG's Health Guideline:
0.1 ppb
0.1 ppb
Haloacetic acids (HAA5)
Potential Effect: cancer
This Utility: 35.5 ppb
Legal Limit: 60 ppb
355x
EWG's Health Guideline:
0.1 ppb
0.1 ppb
Haloacetic acids (HAA9)*
Potential Effect: cancer
This Utility: 18.8 ppb
No Legal Limit
313x
EWG's Health Guideline:
0.06 ppb
0.06 ppb
This Utility: 4.45 ppm
Legal Limit: 10 ppb
32x
EWG's Health Guideline:
0.14 ppb
0.14 ppb
This Utility: 3.77 ppm
Legal Limit: 10 ppb
27x
EWG's Health Guideline:
0.14 ppb
0.14 ppb
This Utility: 0.09 ppt
No Legal Limit
90x
EWG's Health Guideline:
0.001 ppb
0.001 ppb
This Utility: 2.69 ppt
Legal Limit: 10 ppb
2,688x
EWG's Health Guideline:
0.001 ppb
0.001 ppb
This Utility: 2.87 ppt
Legal Limit: 4 ppb
9.6x
EWG's Health Guideline:
0.3 ppb
0.3 ppb
Perfluorooctanoic acid (PFOA)
Potential Effect: cancer
This Utility: 1.09 ppt
Legal Limit: 4 ppb
12x
EWG's Health Guideline:
0.09 ppb
0.09 ppb
This Utility: 2.12 ppt
No Legal Limit
2.1x
EWG's Health Guideline:
1 ppb
1 ppb
Tetrachloroethylene (perchloroethylene)
Potential Effect: cancer
This Utility: 0.141 ppb
Legal Limit: 5 ppb
2.3x
EWG's Health Guideline:
0.06 ppb
0.06 ppb
Total trihalomethanes (TTHMs)
Potential Effect: cancer
This Utility: 31.9 ppb
Legal Limit: 80 ppb
213x
EWG's Health Guideline:
0.15 ppb
0.15 ppb
Trichloroacetic acid
Potential Effect: cancer
This Utility: 1.13 ppb
No Legal Limit
11x
EWG's Health Guideline:
0.1 ppb
0.1 ppb
This Utility: 0.0161 ppb
No Legal Limit
This Utility: 0.254 ppb
Legal Limit: 100 ppb
This Utility: 0.653 ppb
No Legal Limit
This Utility: 1.41 ppt
No Legal Limit
EWG's Health Guideline:
2000 ppt
2000 ppt
This Utility: 0.176 ppt
No Legal Limit
EWG's Health Guideline:
1000 ppt
1000 ppt
This Utility: 0.638 ppt
No Legal Limit
EWG's Health Guideline:
1000 ppt
1000 ppt
This Utility: 0.834 ppt
No Legal Limit
EWG's Health Guideline:
1000 ppt
1000 ppt
This Utility: 0.902 ppt
No Legal Limit
EWG's Health Guideline:
1000 ppt
1000 ppt
Find a Filter
See which water filtration technologies are effective at reducing the contaminants detected in this utility's water supply.
Carbon Filters
Filters 18 contaminants exceeding guidelines (+9 others)
Can reduce the levels of many common contaminants.
Pros
- Lower upfront cost
- Reduced maintenance
Cons
- Does not remove all contaminants
Reverse Osmosis
Filters 22 contaminants exceeding guidelines (+21 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* | ✓ | ✓ | ✓ |
| Bromochloroacetic acid | ✓ | ✓ | ✕ |
| Bromodichloromethane | ✓ | ✓ | ✕ |
| Bromoform | ✓ | ✓ | ✕ |
| Chloroform | ✓ | ✓ | ✕ |
| Chromium (hexavalent)* | ✕ | ✓ | ✓ |
| Dibromoacetic acid | ✓ | ✓ | ✕ |
| Dibromochloromethane | ✓ | ✓ | ✕ |
| Dichloroacetic acid | ✓ | ✓ | ✕ |
| Haloacetic acids (HAA5) | ✓ | ✓ | ✕ |
| Haloacetic acids (HAA9)* | ✓ | ✓ | ✕ |
| Nitrate | ✕ | ✓ | ✓ |
| Nitrate and nitrite | ✕ | ✓ | ✓ |
| Perfluoroheptane sulfonic acid (PFHpS) | ✓ | ✓ | ✕ |
| Perfluorohexane sulfonate (PFHXS) | ✓ | ✓ | ✕ |
| Perfluorooctane sulfonate (PFOS) | ✓ | ✓ | ✕ |
| Perfluorooctanoic acid (PFOA) | ✓ | ✓ | ✕ |
| Perfluoropentane sulfonic acid (PFPeS) | ✓ | ✓ | ✕ |
| Tetrachloroethylene (perchloroethylene) | ✓ | ✓ | ✕ |
| Total trihalomethanes (TTHMs) | ✓ | ✓ | ✕ |
| Trichloroacetic acid | ✓ | ✓ | ✕ |
| Other Contaminants Detected | |||
| 1,4-Dioxane | ✕ | ✓ | ✕ |
| Aluminum | ✕ | ✓ | ✕ |
| Barium | ✕ | ✓ | ✓ |
| Beryllium | ✕ | ✓ | ✓ |
| Bromide | ✓ | ✓ | ✕ |
| Bromochloromethane | ✓ | ✓ | ✕ |
| Chlorate* | ✕ | ✕ | ✕ |
| Chlorodifluoromethane | ✕ | ✕ | ✕ |
| Chromium (total) | ✕ | ✓ | ✓ |
| Dichlorodifluoromethane | ✕ | ✕ | ✕ |
| Fluoride | ✕ | ✓ | ✕ |
| Lithium | ✕ | ✓ | ✓ |
| Manganese | ✕ | ✕ | ✓ |
| Molybdenum | ✕ | ✓ | ✓ |
| Monobromoacetic acid* | ✓ | ✓ | ✕ |
| Monochloroacetic acid | ✓ | ✓ | ✕ |
| N-Nitrosodimethylamine (NDMA) | ✕ | ✓ | ✕ |
| Perfluorobutane sulfonate (PFBS) | ✓ | ✓ | ✕ |
| Perfluorobutanoic Acid (PFBA) | ✓ | ✓ | ✕ |
| Perfluoroheptanoic acid (PFHPA) | ✓ | ✓ | ✕ |
| Perfluorohexanoic Acid (PFHxA) | ✓ | ✓ | ✕ |
| Perfluoropentanoic Acid (PFPeA) | ✓ | ✓ | ✕ |
| Selenium | ✕ | ✓ | ✕ |
| Strontium* | ✕ | ✓ | ✓ |
| Thallium | ✕ | ✓ | ✓ |
| 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.