Drinking water quality · 2026

· Verified

· PWSID CA1910067

What's in Los Angeles-city, Dept. of Water & Power, CA tap water

C
Water quality score
70/ 100Limited data

Only 0 of 27 core regulated contaminants were reported for Los Angeles-city, Dept. of Water & Power, CA. What was measured is clean — but most of the picture is missing.

  • !0 of 27 core regulated contaminants reported — 27 never appear in this report
  • Nothing over a federal limit
  • No open federal violations
+How this score is calculated

Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.

  • 0  contaminants at or above a federal limit
  • 0  contaminants within 20% of a limit
  • 0  open health-based violations
  • 0  open monitoring / reporting violations
  • 0  health-based violations resolved in the last 5 years
  • 30  core regulated contaminants never reported (0/27)

A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.

Full grading methodology, constant for constant →
Nothing here is over a federal limit. Every contaminant reported in this year's data came in below its federal threshold, and none sat within 20% of one.

What this report doesn't tell you

27 of the 27 contaminants a community water system normally reports do not appear anywhere in Los Angeles-city, Dept. of Water & Power, CA's data. Absent is not the same as absent-from-the-water — it means nobody published a number.

LeadCopperArsenicNitrate / nitriteFluorideTrihalomethanes (TTHM)Haloacetic acids (HAA5)Disinfectant residualColiform bacteriaTurbidityBariumChromiumSeleniumAntimonyCadmiumMercuryThalliumBerylliumCyanideRadiumGross alpha radiationUraniumAtrazine / simazineTetrachloroethylene (PCE)Trichloroethylene (TCE)BenzenePFAS
Browse the mapFull source report ↗
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record

Where your water comes from · EPA SDWIS

Los Angeles-city, Dept. of Water & Power, CA's drinking water comes from ground water, drawn from 54 sources.

Source

54ground water
  • RINALDI TOLUCA · 15
  • NORTH HOLLYWOOD · 11
  • TUJUNGA · 9
  • MANHATTAN · 5
  • + 11 more

Treatment

27treatment plants
  • NORTH HOLLYWOOD WEST WELLHEAD TREATMENT
  • TOYONIN BLEND
  • RIVER SUPPY CONDUIT BCL - TREATED
  • + 24 more

Distribution

99storage units

Also buys water from BURBANK-CITY, WATER DEPT., METROPOLITAN WATER DIST. OF SO. CAL..

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.

  • Treatment technique violationHealth-based
    4 violations on record · most recent Jan 2018
    resolved
  • Maximum contaminant level exceededHealth-based
    1 violation on record · most recent Jun 2014
    resolved

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

Source: Los Angeles-city, Dept. of Water & Power, CA's 2026 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.
The grade at the top of this page is computed, not editorial. See exactly how we grade water systems — every deduction, every ceiling, every threshold.

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