All Data Provided by EWG
City of Fresno
EWG’s drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the California State Water Resources Control Board, as well as information from the U.S. EPA Enforcement and Compliance History database (ECHO). For the latest quarter assessed by the U.S. EPA (January 2021 – March 2021), tap water provided by this water utility was in compliance with federal health-based drinking water standards.
Utility Details
Serves: 522,352
Data available: 2013-2020*
Source: Surface water
* 2013 testing is for chemicals in EPA’s Third Unregulated Contaminant Monitoring Rule (UCMR-3) only. 2020/2021 testing is for chemicals in EPA’s Fourth Unregulated Contaminant Monitoring Rule (UCMR-4) only.
Contaminants Detected
17 EXCEED EWG HEALTH GUIDELINES
53 Total Contaminants
- 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.
What To Do
PFAS Detected (UCMR-5 Update)
The Environmental Protection Agency in August 2023 released a set of public water system testing data for the “forever chemicals” known as PFAS, as required by its Fifth Unregulated Contaminant Monitoring Rule, or UCMR5. The EPA released the following results.
Contaminants Detected Table*
| PFAS NAME | DETECTS/SAMPLES | % DETECTED | RANGE OF SAMPLE(S) |
DATE(S) OF SAMPLES |
PROPOSED LEGAL LIMIT |
|---|---|---|---|---|---|
| PFBA | 2 / 89 | 2% | 0.0 – 26.0 ppt | 03/01/2023 – 06/15/2023 | |
| PFBS | 5 / 89 | 6% | 0.0 – 8.6 ppt | 03/01/2023 – 06/15/2023 | Hazard Index |
| PFHpA | 2 / 89 | 2% | 0.0 – 31.0 ppt | 03/01/2023 – 06/15/2023 | |
| PFHxA | 9 / 89 | 10% | 0.0 – 34.0 ppt | 03/01/2023 – 06/15/2023 | |
| PFHxS | 7 / 89 | 8% | 0.0 – 30.0 ppt | 03/01/2023 – 06/15/2023 | Hazard Index |
| PFNA | 4 / 89 | 4% | 0.0 – 8.0 ppt | 03/01/2023 – 06/15/2023 | Hazard Index |
| PFOA | 8 / 89 | 9% | 0.0 – 16.0 ppt | 03/01/2023 – 06/15/2023 | 4 ppt |
| PFOS | 13 / 89 | 15% | 0.0 – 29.0 ppt | 03/01/2023 – 06/15/2023 | 4 ppt |
| PFPeA | 11 / 89 | 12% | 0.0 – 47.0 ppt | 03/01/2023 – 06/15/2023 | |
| PFPeS | 1 / 89 | 1% | 0.0 – 5.3 ppt | 03/01/2023 – 06/15/2023 |
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Contaminants Detected
1,2,3-Trichloropropane
Potential Effect: cancer
6.4x
EWG’S HEALTH GUIDELINE
1,2-Dibromo-3-chloropropane (DBCP)
Potential Effect: cancer
37x
EWG’S HEALTH GUIDELINE
Arsenic
Potential Effect: cancer
165x
EWG’S HEALTH GUIDELINE
Bromodichloromethane
Potential Effect: cancer
2.3x
EWG’S HEALTH GUIDELINE
Chromium (hexavalent)
Potential Effect: cancer
120x
EWG’S HEALTH GUIDELINE
Dichloroacetic acid
Potential Effect: cancer
7.2x
EWG’S HEALTH GUIDELINE
Haloacetic acids (HAA5)†
Potential Effect: cancer
16x
EWG’S HEALTH GUIDELINE
Haloacetic acids (HAA9)†
Potential Effect: cancer
67x
EWG’S HEALTH GUIDELINE
Chromium (hexavalent)
Potential Effect: cancer
120x
EWG’S HEALTH GUIDELINE
Dichloroacetic acid
Potential Effect: cancer
7.2x
EWG’S HEALTH GUIDELINE
Haloacetic acids (HAA5)†
Potential Effect: cancer
16x
EWG’S HEALTH GUIDELINE
Haloacetic acids (HAA9)†
Potential Effect: cancer
67x
EWG’S HEALTH GUIDELINE
Nitrate
Potential Effect: cancer
33x
EWG’S HEALTH GUIDELINE
Nitrate and nitrite
Potential Effect: cancer
23x
EWG’S HEALTH GUIDELINE
Perfluorooctane sulfonate (PFOS)
Potential Effect:
2.1x
EWG’S HEALTH GUIDELINE
Perfluorooctanoic acid (PFOA)
Potential Effect: cancer
26x
EWG’S HEALTH GUIDELINE
Radium, combined (-226 & -228)
Potential Effect: cancer
5.4x
EWG’S HEALTH GUIDELINE
Tetrachloroethylene (perchloroethylene)
Potential Effect: cancer
4x
EWG’S HEALTH GUIDELINE
Total trihalomethanes (TTHMs)†
Potential Effect: cancer
37x
EWG’S HEALTH GUIDELINE
Trichloroacetic acid
Potential Effect: cancer
3.1x
EWG’S HEALTH GUIDELINE
Uranium
Potential Effect: cancer
18x
EWG’S HEALTH GUIDELINE
Other Contaminants Tested
City of Fresno compliance with legally mandated federal standards:
- From April 2019 to March 2021, City of Fresno complied with health-based drinking water standards.
| Contaminant | |||
| CONTAMINANTS ABOVE HEALTH GUIDELINES | |||
| 1,2,3-Trichloropropane | ✔ | ✔ | |
| 1,2-Dibromo-3-chloropropane (DBCP) | ✔ | ✔ | |
| Arsenic | ✔ | ✔ | |
| Bromodichloromethane | ✔ | ✔ | |
| Chromium (hexavalent) | ✔ | ✔ | |
| Dichloroacetic acid | ✔ | ✔ | |
| Haloacetic acids (HAA5) | ✔ | ✔ | |
| Haloacetic acids (HAA9) | ✔ | ✔ | |
| Nitrate | ✔ | ✔ | |
| Nitrate & nitrite | ✔ | ✔ | |
| Perfluorooctane sulfonate (PFOS) | ✔ | ✔ | |
| Perfluorooctanoic acid (PFOA) | ✔ | ✔ | |
| Radium, combined (-226 & -228) | ✔ | ✔ | |
| Tetrachloroethylene (perchloroethylene) | ✔ | ✔ | |
| Total trihalomethanes (TTHMs) | ✔ | ✔ | |
| Trichloroacetic acid | ✔ | ✔ | |
| Uranium, combined (pCi/L) | ✔ | ✔ | |
| OTHER CONTAMINANTS DETECTED | |||
| 1,1-Dichloroethane | ✔ | ✔ | |
| 1,1-Dichloroethylene | ✔ | ✔ | |
| 1,4-Dioxane | ✔ | ||
| 4-Androstene-3,17-dione | ✔ | ✔ | |
| Aluminum | ✔ | ||
| Barium | ✔ | ✔ | |
| Bromochloromethane | ✔ | ✔ | |
| Bromoform | ✔ | ✔ | |
| Chlorate | |||
| Chlorodifluoromethane | |||
| Chloroform | ✔ | ✔ | |
| Chloromethane | ✔ | ✔ | |
| Chromium (total) | ✔ | ✔ | |
| cis-1,2-Dichloroethylene | ✔ | ✔ | |
| Dibromoacetic acid | ✔ | ✔ | |
| Dibromochloromethane | ✔ | ✔ | |
| Dichlorodifluoromethane | |||
| Ethinyl estradiol | ✔ | ✔ | |
| Ethylene dibromide | ✔ | ✔ | |
| Fluoride | ✔ | ||
| Germanium | ✔ | ||
| Manganese | ✔ | ||
| Molybdenum | ✔ | ✔ | |
| Perchlorate | ✔ | ✔ | |
| Perfluorobutane sulfonate (PFBS) | ✔ | ✔ | |
| Perfluoroheptanoic acid (PFHPA) | ✔ | ✔ | |
| Perfluorohexane sulfonate (PFHXS) | ✔ | ✔ | |
| Perfluorohexanoic Acid (PFHxA) | ✔ | ✔ | |
| Perfluorononanoic acid (PFNA) | ✔ | ✔ | |
| Perfluoroundecanoic acid (PFUnA) | ✔ | ✔ | |
| Strontium | ✔ | ✔ | |
| tert-Butyl alcohol | ✔ | ✔ | |
| Testosterone | ✔ | ✔ | |
| Trichloroethylene | ✔ | ✔ | |
| Trichlorofluoromethane | |||
| Vanadium | ✔ |
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