Serving roughly 51,428 people in Kern County, California.
Data current as of July 2026
🔍Straight from EPA
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Results for DELANO, CITY OF
1 water provider directly on file, serving roughly 51,428 people in Kern County, California.
Quick answer: DELANO, CITY OF has no violation currently counted toward its compliance status. EPA's record shows a Nitrate violation dating to 10/01/1982 (44 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
Lithium
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Dibromoaceticacid
Nitrate
Arsenic
Nitrite
Nitrate-Nitrite
1, 2, 3-Trichloropropane
1, 2-Dibromo-3-Chloropropane
Chromium, Hex
Utility DELANO, CITY OFPopulation served 51,428Owner Local government
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2023
Arsenic
Detected: 2.1 UG/L (ppb)
10/26/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Chromium, Hex
Detected: 8.8 UG/L (ppb)
10/13/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 11 UG/L (ppb)
10/13/2025
TTHM
Detected: 21 UG/L (ppb)
10/13/2025
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: 2 UG/L (ppb)
10/13/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 9 UG/L (ppb)
10/13/2025
Bromodichloromethane
Detected: 3 UG/L (ppb)
10/13/2025
Dibromochloromethane
Detected: 7 UG/L (ppb)
10/13/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 5.8 MG/L (ppm)
10/7/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Nitrite
Detected: 0.093 MG/L (ppm)
7/2/2025
Nitrate-Nitrite
Detected: 0.5 MG/L (ppm)
7/2/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 9.14 µg/L (ppb)
9/10/2024
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
1, 2, 3-Trichloropropane
Detected: 0.032 UG/L (ppb)
10/13/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 2 UG/L (ppb)
10/13/2025
Trichloroaceticacid
Detected: 2 UG/L (ppb)
10/13/2025
Dibromoaceticacid
Detected: 5 UG/L (ppb)
10/13/2025
1, 2-Dibromo-3-Chloropropane
Detected: 0.065 UG/L (ppb)
7/2/2025
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.