Serving roughly 26,076 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 REEDLEY, CITY OF
1 water provider directly on file, serving roughly 26,076 people in Fresno County, California.
Quick answer: REEDLEY, CITY OF has no violations on file. One reading is worth knowing about: Aggressive Index was measured at 12.3AGGR, among the highest of the 704 providers on file in this area. It's the most notable figure in this system's record among its 704 local peers.
Lead Summary
TTHM
Bromodichloromethane
Dibromochloromethane
Nitrate
1, 2, 3-Trichloropropane
Aggressive Index
Langelier Index (pH(s))
Magnesium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Sulfate
Chloride
Potassium
Fluoride
Nitrate-Nitrite
pH
1, 2-Dibromo-3-Chloropropane
Tetrachloroethylene
Perchlorate
Barium
Arsenic
Conductivity (at 25°C)
Utility REEDLEY, CITY OFPopulation served 26,076Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2024
Barium
Detected: 75 UG/L (ppb)
8/4/2025
Arsenic
Detected: 2.6 UG/L (ppb)
8/4/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 1.2 UG/L (ppb)
9/10/2025
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.
Bromodichloromethane
Detected: 0.55 UG/L (ppb)
9/10/2025
Dibromochloromethane
Detected: 0.63 UG/L (ppb)
9/10/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 5.6 MG/L (ppm)
10/27/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Sulfate
Detected: 18 MG/L (ppm)
8/4/2025
Chloride
Detected: 27 MG/L (ppm)
8/4/2025
Fluoride
Detected: 0.16 MG/L (ppm)
8/4/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate-Nitrite
Detected: 5.9 MG/L (ppm)
8/4/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 15 MG/L (ppm)
8/4/2025
Sodium
Detected: 26 MG/L (ppm)
8/4/2025
Calcium
Detected: 41 MG/L (ppm)
8/4/2025
Potassium
Detected: 2.4 MG/L (ppm)
8/4/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: 0.26 LANG
8/4/2025
Hardness, Total (ASCACO3)
Detected: 160 MG/L (ppm)
8/4/2025
pH
Detected: 8 PH
8/4/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
1, 2, 3-Trichloropropane
Detected: 0.023 UG/L (ppb)
10/7/2025
Tetrachloroethylene
Detected: 2.1 UG/L (ppb)
10/7/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 200 MG/L (ppm)
8/4/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 12.3 AGGR
8/4/2025
Alkalinity, Total
Detected: 200 MG/L (ppm)
8/4/2025
TDS
Detected: 310 MG/L (ppm)
8/4/2025
1, 2-Dibromo-3-Chloropropane
Detected: 0.061 UG/L (ppb)
10/7/2025
Perchlorate
Detected: 1.8 UG/L (ppb)
10/7/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Conductivity (at 25°C)
Detected: 400 UMHO/CM
10/7/2025
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.