Serving roughly 9,306 people in Fresno County, California.
Data current as of July 2026
🔍Straight from EPA
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Results for HURON, CITY OF
1 water provider directly on file, serving roughly 9,306 people in Fresno County, California.
Quick answer: HURON, CITY OF has no violation currently counted toward its compliance status. EPA's record shows a TTHM violation dating to 04/01/2021 (5 years ago) — because it's more than five years past its deadline, EPA's policy no longer treats it as part of this system's current standing, though it remains on the public record.
Lead Summary
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Monobromoaceticacid
Dibromoaceticacid
Monochloroaceticacid
Copper, Free
Aggressive Index
Langelier Index (pH(s))
Magnesium
Potassium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Carbon, Total
TDS
Chloride
Sulfate
Turbidity
pH
Iron
Manganese
Chromium, Hex
Barium
Aluminum
Conductivity (at 25°C)
Color
Utility HURON, CITY OFPopulation served 9,306Owner Local government
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.
Carbon, Total
Older/archived health-based violation
Found at 1 of 1 provider
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2025
Copper, Free
Detected: 120 UG/L (ppb)
9/9/2025
Iron
Detected: 150 UG/L (ppb)
8/20/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 16 UG/L (ppb)
8/20/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Chromium, Hex
Detected: 0.097 UG/L (ppb)
1/21/2025
Barium
Detected: 19 UG/L (ppb)
8/20/2025
Aluminum
Detected: 140 UG/L (ppb)
8/20/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 32 UG/L (ppb)
10/14/2025
TTHM
Detected: 110 UG/L (ppb)
10/14/2025
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.
Chloroform
Detected: 5.2 UG/L (ppb)
10/14/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 34 UG/L (ppb)
10/14/2025
Bromodichloromethane
Detected: 21 UG/L (ppb)
10/14/2025
Dibromochloromethane
Detected: 51 UG/L (ppb)
10/14/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 20 MG/L (ppm)
8/20/2025
Sulfate
Detected: 7.2 MG/L (ppm)
8/20/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 6.3 MG/L (ppm)
8/20/2025
Potassium
Detected: 1.5 MG/L (ppm)
8/20/2025
Sodium
Detected: 18 MG/L (ppm)
8/20/2025
Calcium
Detected: 11 MG/L (ppm)
8/20/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: -0.88 LANG
8/20/2025
pH
Detected: 7.9 PH
8/20/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 81 MG/L (ppm)
10/7/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 4 UG/L (ppb)
10/14/2025
Trichloroaceticacid
Detected: 2.5 UG/L (ppb)
10/14/2025
Monobromoaceticacid
Detected: 2.6 UG/L (ppb)
10/14/2025
Dibromoaceticacid
Detected: 23 UG/L (ppb)
10/14/2025
Monochloroaceticacid
Detected: 2.3 UG/L (ppb)
7/1/2025
Aggressive Index
Detected: 11.1 AGGR
8/20/2025
Alkalinity, Total
Detected: 81 MG/L (ppm)
10/7/2025
Carbon, Total
Detected: 2.3 MG/L (ppm)
10/7/2025
TDS
Detected: 140 MG/L (ppm)
8/20/2025
Turbidity
Detected: 2.4 NTU
8/20/2025
A measure of water cloudiness from suspended particles.
Conductivity (at 25°C)
Detected: 200 UMHO/CM
8/20/2025
Color
Detected: 10 UNITS
8/20/2025
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.