Drinking water quality · 2023

· Verified

What's in Tract 349 Mutual Water Co. — Cudahy, Ca, CA tap water

19 contaminants were measured in the Tract 349 Mutual Water Co. — Cudahy, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit 2 sit at or above that limit.

Reporting year
2023
Contaminants measured
19
Over federal limit
2
Approaching the limit
0
Worst contaminant
PFOS
6.0× the limit
Service area
CA
state-level CCR
Source
Utility CCR

PFAS ("forever chemicals")

ContaminantMeasuredStatus
PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings.24.1 ng/LAverageSystem-wideAt or above the limit
PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products.4.8 ng/LAverageSystem-wideAt or above the limit
Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.'3.8 ng/LAverageSystem-wideWithin the limit
PFBAPerfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.'0.0013AverageSystem-wideDetected — no federal limit

Other

ContaminantMeasuredStatus
Chlorine Free2.4 mg/LAverageDistribution SystemWithin the limit

Radionuclides

ContaminantMeasuredStatus
Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances.2.03 pCi/LAverageGROUNDWATER AVERAGE (j)Within the limit
+By source (2)GROUNDWATER RANGE (j), GROUNDWATER AVERAGE (j)
  • GROUNDWATER RANGE (j)Plant
    range0–3.38 pCi/L23% of limit
  • GROUNDWATER AVERAGE (j)Plant
    avg2.03 pCi/L14% of limit
Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements.Not detected pCi/LRangeGROUNDWATER RANGE (j)None detected
+By source (2)GROUNDWATER RANGE (j), GROUNDWATER AVERAGE (j)
  • GROUNDWATER RANGE (j)Plant
    rangeNot detected pCi/L0% of limit
  • GROUNDWATER AVERAGE (j)Plant
    avgNot detected pCi/L0% of limit
UraniumA naturally occurring radioactive metal from erosion of natural deposits.1.48 pCi/LAverageGROUNDWATER AVERAGE (j)Detected — no federal limit
+By source (2)GROUNDWATER RANGE (j), GROUNDWATER AVERAGE (j)
  • GROUNDWATER RANGE (j)Plant
    range0.23–2.3 pCi/L
  • GROUNDWATER AVERAGE (j)Plant
    avg1.48 pCi/L

Metals

ContaminantMeasuredStatus
ArsenicA naturally occurring element that also enters water from industry and agriculture.1.3 ug/LAverageGROUNDWATER AVERAGE (j)Within the limit
+By source (2)GROUNDWATER RANGE (j), GROUNDWATER AVERAGE (j)
  • GROUNDWATER RANGE (j)Plant
    range0–2.6 ug/L26% of limit
  • GROUNDWATER AVERAGE (j)Plant
    avg1.3 ug/L13% of limit
CopperA metal that enters water from corroding household plumbing.0.13 mg/L90th percentileDistribution SystemWithin the limit
BariumA metal from erosion of natural deposits and industrial discharge.0.16 mg/LAverageGROUNDWATER AVERAGE (j)Within the limit
+By source (2)GROUNDWATER RANGE (j), GROUNDWATER AVERAGE (j)
  • GROUNDWATER RANGE (j)Plant
    range0.13–0.19 mg/L10% of limit
  • GROUNDWATER AVERAGE (j)Plant
    avg0.16 mg/L8% of limit
AluminumA common element sometimes used as a treatment coagulant.Not detected mg/LAverageGROUNDWATER AVERAGE (j)None detected
+By source (2)GROUNDWATER AVERAGE (j), GROUNDWATER RANGE (j)
  • GROUNDWATER AVERAGE (j)Plant
    avgNot detected mg/L
  • GROUNDWATER RANGE (j)Plant
    rangeNot detected mg/L
Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium.0.27 ug/LAverageGROUNDWATER AVERAGE (j)Detected — no federal limit
+By source (2)GROUNDWATER RANGE (j), GROUNDWATER AVERAGE (j)
  • GROUNDWATER RANGE (j)Plant
    range0.04–0.5 ug/L
  • GROUNDWATER AVERAGE (j)Plant
    avg0.27 ug/L

Inorganic chemicals

ContaminantMeasuredStatus
FluorideA mineral often added to drinking water to help prevent tooth decay.0.29 mg/LAverageGROUNDWATER AVERAGE (j)Within the limit
+By source (2)GROUNDWATER RANGE (j), GROUNDWATER AVERAGE (j)
  • GROUNDWATER RANGE (j)Plant
    range0.24–0.33 mg/L8% of limit
  • GROUNDWATER AVERAGE (j)Plant
    avg0.29 mg/L7% of limit
NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits.Not detected mg/LRangeGROUNDWATER RANGE (j)None detected
+By source (2)GROUNDWATER RANGE (j), GROUNDWATER AVERAGE (j)
  • GROUNDWATER RANGE (j)Plant
    rangeNot detected mg/L0% of limit
  • GROUNDWATER AVERAGE (j)Plant
    avgNot detected mg/L0% of limit

Disinfection byproducts

ContaminantMeasuredStatus
TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter.5.5 ug/LAverageDistribution SystemWithin the limit
HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter.1 ug/LAverageDistribution SystemWithin the limit

Microbial

ContaminantMeasuredStatus
Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals.0AverageDistribution System Average # PositiveNone detected
+By source (2)Distribution System Average # Positive, Distribution System Range Of # Positive
  • Distribution System Average # PositiveZone
    avg0
  • Distribution System Range Of # PositiveZone
    range0
Total ColiformA group of bacteria used as an indicator of overall water-system sanitation.0AverageDistribution System Average # PositiveNone detected
+By source (2)Distribution System Average # Positive, Distribution System Range Of # Positive
  • Distribution System Average # PositiveZone
    avg0
  • Distribution System Range Of # PositiveZone
    range0
Source: Tract 349 Mutual Water Co. — Cudahy, Ca, CA's 2023 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 Tract 349 Mutual Water Co. — Cudahy, Ca, CA's water

+Is Tract 349 Mutual Water Co. — Cudahy, Ca, CA tap water safe to drink in 2023?

The 2023 Consumer Confidence Report for the Tract 349 Mutual Water Co. — Cudahy, Ca, CA water utility lists 2 contaminants at or above the federal limit: PFOS and PFOA. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.

+What contaminants are in Tract 349 Mutual Water Co. — Cudahy, Ca, CA tap water?

19 contaminants were measured in Tract 349 Mutual Water Co. — Cudahy, Ca, CA's 2023 Consumer Confidence Report, spanning metals, pfas ("forever chemicals"), and radionuclides. 9 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.

+Which contaminants exceed federal limits in Tract 349 Mutual Water Co. — Cudahy, Ca, CA tap water?

2 contaminants in Tract 349 Mutual Water Co. — Cudahy, Ca, CA's 2023 report sit at or above the federal limit: PFOS (6.0× the limit); PFOA (1.2× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.

+What is the worst contaminant in Tract 349 Mutual Water Co. — Cudahy, Ca, CA tap water?

The contaminant with the highest measured value relative to its federal limit in the 2023 report is PFOS, at 6.0× the federal threshold. It belongs to the pfas ("forever chemicals") family of contaminants.

+Where does the data on this page come from?

Every value is transcribed from Tract 349 Mutual Water Co. — Cudahy, Ca, CA's 2023 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 Tract 349 Mutual Water Co. — Cudahy, 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 2023 report; a new report will replace it once the utility publishes its next annual update.

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