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Water Quality Lookup / California / San Diego County / DHS BORDER PATROL HWY 94 CHECKPOINT
EPA SDWIS ยท San Diego County, California

DHS BORDER PATROL HWY 94 CHECKPOINT Water Quality Report

Serving roughly 25,083 people in San Diego County, California.

Data current as of July 2026
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Results for DHS BORDER PATROL HWY 94 CHECKPOINT

1 water provider directly on file, serving roughly 25,083 people in San Diego County, California.

Quick answer: DHS BORDER PATROL HWY 94 CHECKPOINT currently has an open health-based violation on file: Surface Water Treatment Rule, a compliance issue since 12/10/2021. This is active, not historical โ€” see the violation detail below for what EPA's enforcement record shows.
Utility DHS BORDER PATROL HWY 94 CHECKPOINT Population served 25,083 Owner Federal government
Open violation on file

Violations on file

TTHM
Older/archived health-based violation
Found at 1 of 1 provider
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.
Surface Water Treatment Rule
Currently open health 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
Iron
Detected: 110 UG/L (ppb)
10/1/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 350 UG/L (ppb)
1/2/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Chromium, Hex
Detected: 0.51 UG/L (ppb)
2/6/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 34.7 UG/L (ppb)
10/1/2025
TTHM
Detected: 132.9 UG/L (ppb)
10/1/2025
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: 2.9 UG/L (ppb)
10/1/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 76.2 UG/L (ppb)
10/1/2025
Bromodichloromethane
Detected: 12 UG/L (ppb)
10/1/2025
Dibromochloromethane
Detected: 41.8 UG/L (ppb)
10/1/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 0.72 MG/L (ppm)
3/5/2025
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
Dichloroaceticacid
Detected: 7.2 UG/L (ppb)
10/1/2025
Trichloroaceticacid
Detected: 5.4 UG/L (ppb)
10/1/2025
Dibromoaceticacid
Detected: 22.1 UG/L (ppb)
10/1/2025
Turbidity
Detected: 0.5 NTU
10/1/2025
A measure of water cloudiness from suspended particles.
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
DichloroaceticacidPartialYesPartial
TrichloroaceticacidPartialYesPartial
DibromoaceticacidPartialYesPartial
IronPartialYesPartial
ManganesePartialYesPartial
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?