whatsinmywater.co
EPA SDWIS ยท Orange County, California

Is LA PALMA, CA Tap Water Safe?

LA PALMA is served by 1 water provider on file with the EPA.

Data current as of July 2026
๐Ÿ”Straight from EPA
๐ŸงชReal Lab Results
๐Ÿ“…Updated Quarterly
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Results for LA PALMA, CA

1 water provider on file serving this city.

Quick answer: LA PALMA'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 15,948 people, and the full breakdown below reflects everything EPA and California have on record for it.

Contaminants found

Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0041 mg/L (ppm)
12/31/2024
Arsenic
Detected: 8.4 UG/L (ppb)
9/8/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Manganese
Detected: 57 UG/L (ppb)
9/2/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Iron
Detected: 84 UG/L (ppb)
9/2/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 1.62 UG/L (ppb)
8/4/2025
TTHM
Detected: 3.97 UG/L (ppb)
8/4/2025
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: 1.1 UG/L (ppb)
8/4/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 0.65 UG/L (ppb)
8/4/2025
Bromodichloromethane
Detected: 1.18 UG/L (ppb)
8/4/2025
Dibromochloromethane
Detected: 1.04 UG/L (ppb)
8/4/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Fluoride
Detected: 0.485 MG/L (ppm)
9/2/2025
Often added deliberately for dental health; can also occur naturally.
Minerals
Everyday minerals that mainly affect taste and water hardness
Calcium
Detected: 40.5 MG/L (ppm)
4/1/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
pH
Detected: 8 PH
4/1/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 31.2009 ยตg/L (ppb)
12/6/2023
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
Other
Additional substances tested that don't fit neatly into the categories above
Trichloroaceticacid
Detected: 1.82 UG/L (ppb)
8/4/2025
Dibromoaceticacid
Detected: 1.62 UG/L (ppb)
8/4/2025
Dichloroaceticacid
Detected: 4.13 UG/L (ppb)
8/4/2025
Alkalinity, Total
Detected: 179 MG/L (ppm)
4/1/2025
Turbidity
Detected: 0.15 NTU
2/3/2025
A measure of water cloudiness from suspended particles.
Odor
Detected: 1 TON
2/3/2025
Filtration considerations: 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
LithiumPartialYes*Partial
FluoridePartialYesPartial
TrichloroaceticacidPartialYesPartial
DibromoaceticacidPartialYesPartial
DichloroaceticacidPartialYesPartial
Alkalinity, TotalPartialYesPartial
OdorPartialYesPartial
ManganesePartialYesPartial
IronPartialYesPartial
Coliform Bacteria (indicator)NoYesNo
CalciumNoPartialNo
pHNoNoNo

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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?