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EPA SDWIS ยท San Bernardino County, California

SAN BERNARDINO VALLEY WD Water Quality Report

Serving roughly 109,608 people in San Bernardino County, California.

Data current as of July 2026
๐Ÿ”Straight from EPA
๐ŸงชReal Lab Results
๐Ÿ“…Updated Quarterly
๐Ÿ Local Expertise
Results for SAN BERNARDINO VALLEY WD

1 water provider directly on file, serving roughly 109,608 people in San Bernardino County, California.

Quick answer: SAN BERNARDINO VALLEY WD has no violations on file and no single reading stands out against its peers (669 other providers in this area). It serves roughly 109,608 people, and the full breakdown below reflects everything EPA and California have on record for it.
Utility SAN BERNARDINO VALLEY WD Population served 109,608 Owner Local government
No violations on file

Contaminants found

Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Chromium, Hex
Detected: 1.1 UG/L (ppb)
1/22/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 3.7 MG/L (ppm)
10/21/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Other
Additional substances tested that don't fit neatly into the categories above
TDS
Detected: 340 MG/L (ppm)
10/21/2025
Turbidity
Detected: 0.16 NTU
8/7/2025
A measure of water cloudiness from suspended particles.
Radium-228
Detected: 0.204 PCI/L
9/10/2025
Odor
Detected: 1 TON
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
LeadPartialYesPartial
ArsenicPartialYesPartial
Chromium-6 (Hexavalent)PartialYesPartial
CopperPartialYesPartial
Combined UraniumPartialYesPartial
PFOAPartialYes*Partial
PFOSPartialYes*Partial
NitratePartialYesPartial
Combined RadiumPartialYesPartial
TDSPartialYesPartial
OdorPartialYesPartial
Chromium, HexPartialYesPartial
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?