CORCORAN is served by 1 water provider on file with the EPA.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for CORCORAN, CA
1 water provider on file serving this city.
Quick answer: CORCORAN's water has no violations on file and no single reading stands out against its peers (1 other providers in this area). It serves roughly 22,808 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Arsenic
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Dibromoaceticacid
Nitrate
Turbidity
Iron
Aluminum
Color
Magnesium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Chloride
Sulfate
Alkalinity, Carbonate
Fluoride
Adsorbableorganicfluorine
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0093 mg/L (ppm)
12/31/2024
Arsenic
Detected: 19 UG/L (ppb)
10/27/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Iron
Detected: 75 UG/L (ppb)
10/6/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Aluminum
Detected: 51 UG/L (ppb)
10/6/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 19 UG/L (ppb)
9/8/2025
TTHM
Detected: 56 UG/L (ppb)
9/8/2025
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: 26 UG/L (ppb)
9/8/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 2.1 UG/L (ppb)
9/8/2025
Bromodichloromethane
Detected: 16 UG/L (ppb)
9/8/2025
Dibromochloromethane
Detected: 11 UG/L (ppb)
9/8/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 2.6 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.
Chloride
Detected: 24 MG/L (ppm)
10/27/2025
Sulfate
Detected: 60 MG/L (ppm)
10/27/2025
Fluoride
Detected: 0.62 MG/L (ppm)
9/29/2025
Often added deliberately for dental health; can also occur naturally.
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 1.1 MG/L (ppm)
10/27/2025
Sodium
Detected: 70 MG/L (ppm)
10/27/2025
Calcium
Detected: 46 MG/L (ppm)
10/27/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 120 MG/L (ppm)
10/27/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 120 MG/L (ppm)
10/27/2025
Alkalinity, Carbonate
Detected: 57 MG/L (ppm)
9/29/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 8.4 UG/L (ppb)
9/8/2025
Trichloroaceticacid
Detected: 8.7 UG/L (ppb)
9/8/2025
Dibromoaceticacid
Detected: 2.3 UG/L (ppb)
9/8/2025
Turbidity
Detected: 3 NTU
10/22/2025
A measure of water cloudiness from suspended particles.
Color
Detected: 5 UNITS
8/4/2025
Alkalinity, Total
Detected: 120 MG/L (ppm)
10/27/2025
TDS
Detected: 360 MG/L (ppm)
10/27/2025
Adsorbableorganicfluorine
Detected: 830 NG/L (ppt)
1/7/2025
Filtration considerations: General system types, not a specific product recommendation.