Perfluorohexanesulfonic acid
18.3ng/L
Each block = 10 ng/L federal MCL (2024)
Crestline Village Cwd - Division 10 serves 11,650 people from surface water. 31 results are on record. Three PFAS, PFHxS, PFOA and PFOS, are above their federal limits (2024 limits that water systems have until at least 2029 to meet); lithium sits above a screening level.
Each bar is drawn in blocks of its own limit, so the length shows how far above it the result sits.
18.3ng/L
Each block = 10 ng/L federal MCL (2024)
5.2ng/L
Each block = 4.0 ng/L federal MCL (2024)
4.5ng/L
Each block = 4.0 ng/L federal MCL (2024)
4,947service lines inventoried
From the utility's inventory reported to EPA (2026Q2). Look up your address with the utility.
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.
A federal limit (an MCL or action level) is an enforceable legal cap; a health goal is often stricter. Meeting the limit is a compliance fact, not a health clearance, and PurityMap publishes no overall compliance verdict.
A tap test can confirm levels at your home before you choose treatment.
PFHxS 18.3 ng/L, above the 10 ng/L limit (+6 more PFAS detected)
Lithium 22.2 µg/L, above the 10.0 µg/L EPA health reference level
Understand water treatment technologies →
Understand:PFAS in Crestline Village Cwd
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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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.
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.
When your results arrive, read them here →
Each card names which of this system’s findings its current certification covers, and which it doesn’t.
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CRESTLINE VILLAGE CWD - DIVISION 10 (PWS ID CA3610015) is a public water system serving 11,650 people in Crestline Village Cwd, California.
CRESTLINE VILLAGE CWD - DIVISION 10 is on record as drawing from surface water. The source shapes which contaminants matter most for this system.
PurityMap's record for CRESTLINE VILLAGE CWD - DIVISION 10 holds 31 findings: 4 above a reference, 3 detected within the reference, 1 detected with no limit and 23 not detected, from 31 evidence records. Every finding links to its source; a substance that was never monitored is shown as pending, not as a pass.
PurityMap does not issue a safety verdict. It publishes CRESTLINE VILLAGE CWD - DIVISION 10's measured results against each contaminant's benchmark so you can read them in context. Safety depends on the specific finding, your plumbing, and how the water reaches your tap.
The latest published record for CRESTLINE VILLAGE CWD - DIVISION 10 is dated 2026-09-16. Utilities report on regulatory cycles, so results reflect the monitoring period rather than a live reading.
No. It is assessed at the water-system level from CRESTLINE VILLAGE CWD - DIVISION 10's own monitoring. It does not cover the service line to your building or the plumbing inside it, which can add lead and other metals after the water leaves the system. A tap test is the way to know what reaches your glass.
Lithium, Perfluorohexanesulfonic acid (PFHxS), Perfluorooctanesulfonic acid (PFOS), Perfluorooctanoic acid (PFOA), Perfluorononanoic acid (PFNA), Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and Perfluoropentanoic acid (PFPeA) were detected in this record. Each finding shows its measured value, its reference and its source on this page.
Start with what the record shows: the PFAS findings above list each measured value against its reference. This record cannot show your home's plumbing, so a tap test tells you what reaches your glass. If you decide to treat your water, look for a filter whose certification covers the specific PFAS compounds in your record; the section "Certified for a concern found here" lists only products with a current certification record for these concerns.
Follow Crestline Village Cwd - Division 10
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As listed for this system in EPA's records. Your water bill names your supplier.
| Substance | Result | Reference | Sampled | Status | Evidence |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | 2024-01-08 to 2025-01-27 | Not detected | — |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluorobutanesulfonic acid (PFBS) | 12.2 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit) | 2024-01-08 to 2025-01-27 | Below limit | View evidence |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluorohexanoic acid (PFHxA) | 4.5 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | 2024-01-08 to 2025-01-27 | Below limit | View evidence |
| Perfluorohexanesulfonic acid (PFHxS) | 18.3 ng/L | 10 ng/L federal MCL (2024) | 2024-01-08 to 2025-01-27 | Above guideline | View evidence |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluorononanoic acid (PFNA) | 7.1 ng/L | 10 ng/L federal MCL (2024) | 2024-01-08 to 2025-01-27 | Below limit | View evidence |
| Perfluorooctanoic acid (PFOA) | 4.5 ng/L | 4.0 ng/L federal MCL (2024) | 2024-01-08 to 2025-01-27 | Above guideline | View evidence |
| Perfluorooctanesulfonic acid (PFOS) | 5.2 ng/L | 4.0 ng/L federal MCL (2024) | 2024-01-08 to 2025-01-27 | Above guideline | View evidence |
| Perfluoropentanoic acid (PFPeA) | 4.4 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Detected, no limit | View evidence |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | 2024-01-08 to 2025-01-27 | Not detected | — |
| Lithium | 22.2 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit) | 2024-01-08 to 2025-01-27 | Above guideline | View evidence |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | 2024–2026 monitoring period (still open) | Not detected | View evidence |
UCMR5 Analytical Results
UCMR5 Analytical Results: CRESTLINE VILLAGE CWD - DIVISION 10 (CA3610015)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: CRESTLINE VILLAGE CWD - DIVISION 10 (CA3610015)
US EPA SDWIS