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EPA SDWIS · Fresno County, California

MENDOTA, CITY OF Water Quality Report

Serving roughly 11,404 people in Fresno County, California.

Data current as of July 2026
🔍Straight from EPA
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Results for MENDOTA, CITY OF

1 water provider directly on file, serving roughly 11,404 people in Fresno County, California.

Quick answer: MENDOTA, CITY OF has no violations on file. One reading is worth knowing about: Bromoform was measured at 39UG/L, 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.
Utility MENDOTA, CITY OF Population served 11,404 Owner Local government
No violations on file
Also serves MENDOTA

Contaminants found

Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2024
Copper Summary
Detected: 1.4 mg/L (ppm)
12/31/1995
Iron
Detected: 31 UG/L (ppb)
10/14/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 50 UG/L (ppb)
10/7/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 6.9 UG/L (ppb)
10/7/2025
TTHM
Detected: 48 UG/L (ppb)
10/7/2025
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: 0.57 UG/L (ppb)
7/1/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 39 UG/L (ppb)
10/7/2025
Bromodichloromethane
Detected: 2 UG/L (ppb)
10/7/2025
Dibromochloromethane
Detected: 7.3 UG/L (ppb)
10/7/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dibromoaceticacid
Detected: 6.9 UG/L (ppb)
10/7/2025
TDS
Detected: 520 MG/L (ppm)
10/21/2025
Turbidity
Detected: 0.33 NTU
8/5/2025
A measure of water cloudiness from suspended particles.
Conductivity (at 25°C)
Detected: 840 UMHO/CM
10/21/2025
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.
Contaminant Whole-House Carbon Under-Sink RO Under-Sink Carbon
Total Trihalomethanes (TTHM)YesYesYes
Haloacetic Acids (HAA5)YesYesYes
ChloroformYesYesYes
Chlorine / TasteYesYesYes
Sediment / TurbidityYesYesYes
TrichloroethyleneYesYesYes
TetrachloroethyleneYesYesYes
cis-1,2-DichloroethyleneYesYesYes
1,1-DichloroethyleneYesYesYes
BromoformYesYesYes
BromodichloromethaneYesYesYes
DibromochloromethaneYesYesYes
1,1,2-TrichloroethaneYesYesYes
Vinyl ChlorideYesYesYes
Carbon TetrachlorideYesYesYes
BenzeneYesYesYes
TolueneYesYesYes
XyleneYesYesYes
Totalhaloaceticacids (HAA5)YesYesYes
LeadPartialYesPartial
ArsenicPartialYesPartial
Chromium-6 (Hexavalent)PartialYesPartial
CopperPartialYesPartial
Combined UraniumPartialYesPartial
PFOAPartialYes*Partial
PFOSPartialYes*Partial
NitratePartialYesPartial
Combined RadiumPartialYesPartial
DibromoaceticacidPartialYesPartial
TDSPartialYesPartial
IronPartialYesPartial
ManganesePartialYesPartial
Conductivity (at 25°C)PartialYesPartial
Coliform Bacteria (indicator)NoYesNo

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What is TTHM? Understanding EPA Violation Status Is Chromium-6 Dangerous? Whole-House vs. Under-Sink Filtration Lead and Copper in Drinking Water What is PFAS? Arsenic and Uranium Explained Nitrate and Fluoride Explained Water Hardness, pH, and Turbidity What is Coliform Bacteria?