Short answer: In the 2021–2024 records we hold for Los Angeles Cwwd 40 R 24 27 33-pearblsm, no listed result is above a legal limit. Also worth knowing: lithium sits above a screening level. 1 substance was detected and 5 were tested and not detected. The water is from Los Angeles CWWD 40, R 24,27,33-Pearblsm, serving 11,609 residents.
Your water bill or annual water quality report names your actual supplier.
Surface water
The treatment details are not on record.
Mains, then your building’s service line.
Plumbing inside the building is outside this record.
No measured result is above a legal limit; lithium sits above a screening level.
16.3 µg/L, sampled 2024-09-04. EPA UCMR 5.
10 µg/L EPA health reference level (screening, not a legal limit).
Detected at up to 16.3 µg/L (above the 10 µg/L EPA health reference level; a screening level, not a legal limit).
Where it enters is not in this record.
Test your own tap first. To reduce it: Depends on the contaminant (The certifier's listing for each named contaminant).
LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM (EPA PWSID CA1910203) delivers surface water to 11,609 residents. This report reflects 4 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.
0health-based violations in the last 10 years
From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit.
No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.
The record describes water leaving treatment and samples across the system. Pipes, solder and fixtures inside a building can add lead the record can’t see, especially in older buildings with lead service lines.
Test your waterMeasured in this report
Sampled across the system
Not in this record
Only a tap test measures it
Know what comes from your tap, starting with a first-draw lead sample.
Compare each result with its named reference in our test reader.
Choose a technology certified for what your test found.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Screening: quick check, not lab-grade
Silver Lake Research
Lead, bacteria, nitrate, copper, iron, chlorine, hardness and pH
What it can't tell you: Each test gives a yes/no or a rough range, not a lab number, and it cannot detect PFAS or arsenic.
When your results arrive, read them here → · Compare every kit we list
California State Water Resources Control Board certifies the labs that test drinking water in California. Find a certified lab in California ↗ · What lab tests cost →
| Finding | Reference type | Technology | Certification to check |
|---|---|---|---|
| Lithium16.3 µg/L | Screening level | Depends on the contaminant | The certifier's listing for each named contaminant |
Each card names which Los Angeles Cwwd 40 R 24 27 33-pearblsm findings its current certification covers, and which it doesn't.
As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.
No product in our catalogue has verified certification for these concerns yet.
Older buildings may have lead service lines, solder or fixtures. Lead is not in Los Angeles Cwwd 40 R 24 27 33-pearblsm’s published record, so only a tap test tells you. Test first-draw water, then filter if needed.
None of the 4 PFAS tested was detected in Los Angeles Cwwd 40 R 24 27 33-pearblsm’s record. If PFAS matters to you, a filter certification names each compound it covers.
Most utilities keep chlorine or chloramine in the pipes. A carbon filter certified for taste and odor reduces either; your utility can tell you which it uses.
Your utility’s annual water quality report usually lists hardness; a test strip also measures it.
Reverse osmosis reduces many dissolved contaminants, including lead and minerals, at a single faucet, with some water sent to drain.
Get one email when Los Angeles Cwwd 40 R 24 27 33-pearblsm’s record changes.
One email when a new sampling round is published, a result moves above or below its reference, or the system's score changes.PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Los Angeles Cwwd 40 R 24 27 33-pearblsm, no regulated PFAS were detected in EPA's 2024 testing. LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM (PWSID CA1910203) has a Purity Score of 100/100 (confidence: low), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap. What we found →
LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM (PWS ID CA1910203) is the public water system on record for Los Angeles Cwwd 40 R 24 27 33-pearblsm, California, serving about 11,609 people. Confirm the utility on your water bill before acting on a specific finding. Water utility →
Surface water (primary source of record in EPA SDWIS). Water utility →
None of the 4 PFAS in EPA's UCMR 5 testing (2024-09-04) was detected. "Not detected" means below the lab's reporting limit, not proven zero. What we found →
Lead is not in Los Angeles Cwwd 40 R 24 27 33-pearblsm's current published record. Lead usually enters from a building's own pipes and fixtures, so a certified home test is the way to know yours. Your household →
PurityMap's current record for Los Angeles Cwwd 40 R 24 27 33-pearblsm holds 6 findings: 1 above a reference and 5 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass. Records →
| Contaminant | Measured | Reference | Sampled | Source |
|---|---|---|---|---|
| Lithium | 16.3 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit) | 2024 | EPA UCMR 5 ↗ (opens in a new tab) |
| Lead (90th percentile) | Not detected | 15 µg/L federal action level | 2021–2023 | EPA SDWIS (Lead & Copper Rule) ↗ (opens in a new tab) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L (not detected) | No federal or state limit; shown for transparency | 2024 | EPA UCMR 5 ↗ (opens in a new tab) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L (not detected) | No federal or state limit; shown for transparency | 2024 | EPA UCMR 5 ↗ (opens in a new tab) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L (not detected) | No federal or state limit; shown for transparency | 2024 | EPA UCMR 5 ↗ (opens in a new tab) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L (not detected) | No federal or state limit; shown for transparency | 2024 | EPA UCMR 5 ↗ (opens in a new tab) |
UCMR5 Analytical Results
UCMR5 Analytical Results: LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM (CA1910203)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM (CA1910203)
US EPA SDWIS
Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.
EPA SDWIS, EPA UCMR 5 and utility reports, each dated and linked.
Units converted to one basis; a non-detect kept distinct from zero.
Each result tagged by reference type: MCL, action level, screening level or aesthetic.
Every value sits against its own reference, never a blended one.
Measured subjects summarised at the water-system level; an open health-based violation caps the score.
Treatment is matched to what was found; a product is called certified only when its current certification names it.
What the Purity Score means: a summary of this water system’s published record, capped while a health-based violation is open. It is not a test of any tap. LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM · PWSID CA1910203 · Purity Score 100/100 (Excellent) · Confidence: low · Assessed at the water-system level
Full methodology →Start with the hot-or-cold tap check. Where Los Angeles CWWD 40, R 24,27,33-Pearblsm reported something related, it's shown below.
Lead at Los Angeles CWWD 40, R 24,27,33-Pearblsm: not detected (90th percentile, 2021–2023 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.