Drinking water quality · 2020

· Verified

What's in City of La Palma — La Palma, Ca, CA tap water

36 contaminants were measured in the City of La Palma — La Palma, Ca, CA water system's 2020 annual report. Each is shown below against its federal limit.

Browse the mapFull source report ↗
Reporting year
2020
Contaminants measured
36
Over federal limit
0
Approaching the limit
0
Service area
CA
state-level CCR
Source
Utility CCR
All within federal limits. Every measured contaminant in this report is below its federal threshold.

Compliance history

Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.

  • Monitoring
    1 violation on record
    resolved

Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗

Metals

ContaminantMeasuredStatus
ArsenicA naturally occurring element that also enters water from industry and agriculture.7 ug/LAverageImported Water Cerritos GroundwaterWithin the limit
+By source (3)Imported Water Cerritos Groundwater, Local Groundwater, Imported Water MWD Surface Water
  • Imported Water Cerritos GroundwaterPlant
    avg7 ug/L70% of limit
  • Local GroundwaterPlant
    avg6.3 ug/L63% of limit
  • Imported Water MWD Surface WaterPlant
    avgNot detected ug/L0% of limit
CopperA metal that enters water from corroding household plumbing.0.15 mg/L90th percentileAt the tapWithin the limit
BariumA metal from erosion of natural deposits and industrial discharge.0.111 mg/LAverageImported Water MWD Surface WaterWithin the limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg0.111 mg/L6% of limit
  • Imported Water Cerritos GroundwaterPlant
    avg0.11 mg/L6% of limit
  • Local GroundwaterPlant
    avgNot detected mg/L0% of limit
LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.Not detected ug/L90th percentileAt the tapNone detected
AluminumA common element sometimes used as a treatment coagulant.141 ug/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg0.141 ug/L
  • Imported Water Cerritos GroundwaterPlant
    avgNot detected mg/L
  • Local GroundwaterPlant
    avgNot detected mg/L
CalciumA naturally occurring mineral that contributes to water hardness.66 mg/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg66 mg/L
  • Imported Water Cerritos GroundwaterPlant
    avg61 mg/L
  • Local GroundwaterPlant
    avg41.9 mg/L
GermaniumA trace metalloid found in some source water.0.1 ug/LAverageMWD Surface WaterDetected — no federal limit
+By source (2)MWD Surface Water, Local Groundwater
  • MWD Surface WaterPlant
    avg0.1 ug/L
  • Local GroundwaterPlant
    avgNot detected ug/L
MagnesiumA naturally occurring mineral that contributes to water hardness.25 mg/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg25 mg/L
  • Imported Water Cerritos GroundwaterPlant
    avg9.5 mg/L
  • Local GroundwaterPlant
    avg8.9 mg/L
ManganeseA naturally occurring metal from soil and rock.56 ug/LAverageImported Water Cerritos GroundwaterDetected — no federal limit
+By source (4)Imported Water Cerritos Groundwater, Local Groundwater, MWD Surface Water +1 more
  • Imported Water Cerritos GroundwaterPlant
    avg56 ug/L
  • Local GroundwaterPlant
    avg39 ug/L
  • MWD Surface WaterPlant
    avg1.7 ug/L
  • Imported Water MWD Surface WaterPlant
    avgNot detected ug/L
PotassiumA naturally occurring mineral from rock and soil.4.4 mg/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg4.4 mg/L
  • Imported Water Cerritos GroundwaterPlant
    avg2.9 mg/L
  • Local GroundwaterPlant
    avg2.1 mg/L
SodiumA naturally occurring salt component.94 mg/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Local Groundwater, Imported Water Cerritos Groundwater
  • Imported Water MWD Surface WaterPlant
    avg94 mg/L
  • Local GroundwaterPlant
    avg50.2 mg/L
  • Imported Water Cerritos GroundwaterPlant
    avg45 mg/L

Physical & aggregate

ContaminantMeasuredStatus
TurbidityA measure of cloudiness from suspended particles in the water.0.3 NTUAverageAverage AmountWithin the limit
+By source (4)Local Groundwater, Imported Water Cerritos Groundwater, Metropolitan Water District Diemer Filtration Plant +1 more
  • Local GroundwaterPlant
    avg0.2 NTU20% of limit
  • Imported Water Cerritos GroundwaterPlant
    avg0.1 NTU10% of limit
  • Metropolitan Water District Diemer Filtration PlantPlant
    3% of limit
  • Imported Water MWD Surface WaterPlant
    avgNot detected NTU0% of limit
AlkalinityA measure of the water's capacity to neutralize acids.180 mg/LAverageImported Water Cerritos GroundwaterDetected — no federal limit
+By source (3)Imported Water Cerritos Groundwater, Local Groundwater, Imported Water MWD Surface Water
  • Imported Water Cerritos GroundwaterPlant
    avg180 mg/L
  • Local GroundwaterPlant
    avg165 mg/L
  • Imported Water MWD Surface WaterPlant
    avg125 mg/L
ColorA measure of visible tint in the water.9AverageAverage AmountDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Local Groundwater, Imported Water Cerritos Groundwater
  • Imported Water MWD Surface WaterPlant
    avg1
  • Local GroundwaterPlant
    avgNot detected
  • Imported Water Cerritos GroundwaterPlant
    avgNot detected
HardnessA measure of dissolved calcium and magnesium minerals.274 mg/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg274 mg/L
  • Imported Water Cerritos GroundwaterPlant
    avg190 mg/L
  • Local GroundwaterPlant
    avg141 mg/L
OdorA measure of detectable smell in the water.2AverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Local Groundwater, Imported Water Cerritos Groundwater
  • Imported Water MWD Surface WaterPlant
    avg2
  • Local GroundwaterPlant
    avg1
  • Imported Water Cerritos GroundwaterPlant
    avgNot detected
pHA measure of how acidic or basic the water is.8.1AverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Local Groundwater, Imported Water Cerritos Groundwater
  • Imported Water MWD Surface WaterPlant
    avg8.1
  • Local GroundwaterPlant
    avg8
  • Imported Water Cerritos GroundwaterPlant
    avg7.8
Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content.958AverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg958
  • Imported Water Cerritos GroundwaterPlant
    avg580
  • Local GroundwaterPlant
    avg476
TOCTotal organic carbon — a measure of organic material dissolved in the water.2.4 mg/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (2)Imported Water MWD Surface Water, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg2.4 mg/L
  • Local GroundwaterPlant
    avg0.32 mg/L
Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts.597 mg/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg597 mg/L
  • Imported Water Cerritos GroundwaterPlant
    avg360 mg/L
  • Local GroundwaterPlant
    avg307 mg/L

Radionuclides

ContaminantMeasuredStatus
Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances.3.89 pCi/LAverageLocal GroundwaterWithin the limit
+By source (3)Local Groundwater, Imported Water Cerritos Groundwater, Imported Water MWD Surface Water
  • Local GroundwaterPlant
    avg3.89 pCi/L26% of limit
  • Imported Water Cerritos GroundwaterPlant
    avgNot detected pCi/L0% of limit
  • Imported Water MWD Surface WaterPlant
    avgNot detected pCi/L0% of limit
Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances.5 pCi/LAverageImported Water MWD Surface WaterDetected — no federal limit
UraniumA naturally occurring radioactive metal from erosion of natural deposits.2 pCi/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Local Groundwater, Imported Water Cerritos Groundwater
  • Imported Water MWD Surface WaterPlant
    avg2 pCi/L
  • Local GroundwaterPlant
    avgNot detected pCi/L
  • Imported Water Cerritos GroundwaterPlant
    avgNot detected pCi/L

Inorganic chemicals

ContaminantMeasuredStatus
FluorideA mineral often added to drinking water to help prevent tooth decay.0.7 mg/LAverageImported Water MWD Surface WaterWithin the limit
+By source (3)Imported Water MWD Surface Water, Local Groundwater, Imported Water Cerritos Groundwater
  • Imported Water MWD Surface WaterPlant
    avg0.7 mg/L18% of limit
  • Local GroundwaterPlant
    avg0.44 mg/L11% of limit
  • Imported Water Cerritos GroundwaterPlant
    avg0.28 mg/L7% of limit
Bromochloroacetic acidA mixed-halogen haloacetic acid disinfection byproduct.0.7 ug/LAverageAverage AmountWithin the limit
NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits.Not detected mg/LAverageImported Water Cerritos GroundwaterWithin the limit
+By source (3)Imported Water Cerritos Groundwater, Imported Water MWD Surface Water, Local Groundwater
  • Imported Water Cerritos GroundwaterPlant
    avgNot detected mg/L0% of limit
  • Imported Water MWD Surface WaterPlant
    avgNot detected mg/L0% of limit
  • Local GroundwaterPlant
    avgNot detected mg/L0% of limit
BromideA naturally occurring salt found in source water.0.05 ug/LAverageLocal GroundwaterDetected — no federal limit
ChlorideA naturally occurring salt compound.96 mg/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg96 mg/L
  • Imported Water Cerritos GroundwaterPlant
    avg37 mg/L
  • Local GroundwaterPlant
    avg15.9 mg/L
SulfateA naturally occurring mineral from rock and soil.214 mg/LAverageImported Water MWD Surface WaterDetected — no federal limit
+By source (3)Imported Water MWD Surface Water, Imported Water Cerritos Groundwater, Local Groundwater
  • Imported Water MWD Surface WaterPlant
    avg214 mg/L
  • Imported Water Cerritos GroundwaterPlant
    avg68 mg/L
  • Local GroundwaterPlant
    avg48.4 mg/L

Disinfectants

ContaminantMeasuredStatus
ChlorineA disinfectant added to drinking water to kill bacteria and viruses.0.59 mg/LAverageAverage AmountWithin the limit

Disinfection byproducts

ContaminantMeasuredStatus
HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter.2 ug/LAverageAverage AmountWithin the limit
BromateA disinfection byproduct formed when bromide-containing water is treated with ozone.Not detected ug/LAverageImported Water MWD Surface WaterWithin the limit
Bromodichloroacetic acidA brominated haloacetic acid disinfection byproduct.0.3 ug/LAverageAverage AmountDetected — no federal limit

Other

ContaminantMeasuredStatus
TceNot detected ug/LAverageLocal GroundwaterWithin the limit
+By source (3)Local Groundwater, Imported Water Cerritos Groundwater, Imported Water MWD Surface Water
  • Local GroundwaterPlant
    avgNot detected ug/L0% of limit
  • Imported Water Cerritos GroundwaterPlant
    avgNot detected ug/L0% of limit
  • Imported Water MWD Surface WaterPlant
    avgNot detected ug/L0% of limit
Dbaa0.9 ug/LAverageAverage AmountDetected — no federal limit
Dcaa0.4 ug/LAverageAverage AmountDetected — no federal limit
Source: City of La Palma — La Palma, Ca, CA's 2020 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.

People also ask about City of La Palma — La Palma, Ca, CA's water

+Is City of La Palma — La Palma, Ca, CA tap water safe to drink in 2020?

Every one of the 36 contaminants measured in City of La Palma — La Palma, Ca, CA's 2020 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.

+What contaminants are in City of La Palma — La Palma, Ca, CA tap water?

36 contaminants were measured in City of La Palma — La Palma, Ca, CA's 2020 Consumer Confidence Report, spanning metals, physical & aggregate, and inorganic chemicals. 8 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.

+Where does the data on this page come from?

Every value is transcribed from City of La Palma — La Palma, Ca, CA's 2020 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.

+How often is City of La Palma — La Palma, Ca, CA's water quality data updated?

Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2020 report; a new report will replace it once the utility publishes its next annual update.

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