Serving roughly 26,357 people in Fresno County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for CITY OF SANGER
1 water provider directly on file, serving roughly 26,357 people in Fresno County, California.
Quick answer: CITY OF SANGER currently has an open health-based violation on file: Lead And Copper Rule Revisions, a compliance issue since 10/17/2024. This is active, not historical — see the violation detail below for what EPA's enforcement record shows.
Lead Summary
PFPEA
PFHXA
PFOS
PFOA
Lead
TTHM
Bromoform
Dibromochloromethane
Copper, Free
Nitrate
1, 2-Dibromo-3-Chloropropane
Tetrachloroethylene
Chloroform
Aggressive Index
Langelier Index (pH(s))
Magnesium
Potassium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Chloride
Sulfate
Utility CITY OF SANGERPopulation served 26,357Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2025
Lead
Detected: 5.9 UG/L (ppb)
9/25/2025
A metal that can leach from old pipes, solder, and fixtures. Current medical guidance holds there is no truly safe level of lead exposure, especially for children and pregnant women.
Copper, Free
Detected: 51 UG/L (ppb)
9/26/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 1.5 UG/L (ppb)
8/18/2025
A group of disinfection byproducts formed when chlorine reacts with organic matter. Long-term exposure above the legal limit has been linked to increased cancer risk in some studies.
Bromoform
Detected: 0.72 UG/L (ppb)
8/18/2025
Dibromochloromethane
Detected: 0.8 UG/L (ppb)
8/18/2025
Chloroform
Detected: 0.8 UG/L (ppb)
4/15/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 5.3 MG/L (ppm)
10/28/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Chloride
Detected: 8.9 MG/L (ppm)
6/18/2025
Sulfate
Detected: 41 MG/L (ppm)
6/18/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 21 MG/L (ppm)
6/18/2025
Potassium
Detected: 2.4 MG/L (ppm)
6/18/2025
Sodium
Detected: 21 MG/L (ppm)
6/18/2025
Calcium
Detected: 26 MG/L (ppm)
6/18/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: -0.077 LANG
6/18/2025
Hardness, Total (ASCACO3)
Detected: 150 MG/L (ppm)
6/18/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
PFPEA
Detected: 0.0038 µg/L (ppb)
7/10/2024
PFHXA
Detected: 0.0035 µg/L (ppb)
7/10/2024
PFOS
Detected: 0.0058 µg/L (ppb)
7/10/2024
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFOA
Detected: 0.0045 µg/L (ppb)
7/10/2024
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
Tetrachloroethylene
Detected: 1.1 UG/L (ppb)
7/8/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 130 MG/L (ppm)
6/18/2025
Other
Additional substances tested that don't fit neatly into the categories above
1, 2-Dibromo-3-Chloropropane
Detected: 0.028 UG/L (ppb)
10/15/2025
Aggressive Index
Detected: 12 AGGR
6/18/2025
Alkalinity, Total
Detected: 130 MG/L (ppm)
6/18/2025
TDS
Detected: 270 MG/L (ppm)
6/18/2025
Filtration considerations: See the table below for how whole-house carbon, under-sink reverse osmosis, and under-sink carbon systems compare against what's actually on file here. These are general system types, not a specific product recommendation.