Is Rosedale Tap Water Safe? 2026 Water Quality Report
Short answer: No measured result is above a legal limit. Vaughn WC Inc serves 37,189 residents.
VAUGHN WC INC serves Rosedale
Your water bill or annual water quality report names your actual supplier.
- Source
- Groundwater
- VAUGHN WC INCThis reportCA1510029 · 37,189 served
2 detected results
VAUGHN WC INC (EPA PWSID CA1510029) delivers groundwater to 37,189 residents. This report reflects 29 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.
- Perfluorohexanoic acid (PFHxA)EPA UCMR 5 · 2025400,000 ng/L Michigan EGLE state MCL (strictest US state)3.4ng/LWithin reference
- Perfluoropentanoic acid (PFPeA)EPA UCMR 5 · 2025No federal or state limit; shown for transparency3.1ng/LDetected · no limit
29 other contaminants tested, none detected
- 11Cl-PF3OUdS
- 4:2 FTS
- 6:2 FTS
- 8:2 FTS
- 9Cl-PF3ONS
- ADONA
- HFPO-DA (GenX)
- NEtFOSAA
- NFDHA
- NMeFOSAA
- PFBA
- PFBS
- PFDA
- PFDoA
- PFEESA
- PFHpA
- PFHpS
- PFHxS
- PFMBA
- PFMPA
- PFNA
- PFOA
- PFOS
- PFPeS
- PFTA
- PFTrDA
- PFUnA
- Lithium
- Lead (90th percentile)
Coverage by group
31 results on record- PFAS (forever chemicals)2 detected · 27 not detected
- Metals & lead1 not detected
- Disinfection by-productsNot monitored
- Other1 not detected
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.
Test first, then treat what was found
- 01 · TestTest your own tap
A tap test can confirm levels at your home before you choose treatment.
Certified labHow to test your tap → - 02 · PFASReverse osmosis, or carbon certified for PFAS
PFHxA 3.4 ng/L, below the 400000 ng/L state limit (+1 more PFAS detected)
NSF/ANSI 58 or 53, with PFHxA/PFPeA named on the listingTreatment for PFAS →
No certified match for these concerns yet
Each card names which Rosedale 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.
Frequently asked questions
Is Rosedale tap water safe to drink?
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Rosedale, PFAS were detected below their limits, and PFPeA 3.1 ng/L with no federal or state limit. VAUGHN WC INC (PWSID CA1510029) has a Purity Score of 100/100 (confidence: moderate), 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.
Who provides tap water in Rosedale?
VAUGHN WC INC (PWS ID CA1510029) is the public water system on record for Rosedale, California, serving about 37,189 people. Confirm the utility on your water bill before acting on a specific finding.
Where does Rosedale get its drinking water?
Groundwater (primary source of record in EPA SDWIS).
Are PFAS "forever chemicals" in Rosedale's water?
In EPA's UCMR 5 testing (2025-02-10 to 2025-08-08), PFHxA was detected at 3.4 ng/L, below the 400,000 ng/L state limit. PFPeA (3.1 ng/L) was also detected; it has no federal or state limit.
Is there lead in Rosedale's tap water?
Lead is not in Rosedale'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.
What does the latest Rosedale water report show?
PurityMap's current record for Rosedale holds 31 findings: 1 detected within the reference, 1 detected with no limit and 29 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
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Sources and dataAll 31 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule)
| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorohexanoic acid (PFHxA) | 3.4 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluoropentanoic acid (PFPeA) | 3.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
29 other contaminants tested — none detected
| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2023–2025 monitoring period | Lead & Copper Rule 90th-percentile: VAUGHN WC INC (CA1510029) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-08 | UCMR5 Analytical Results: VAUGHN WC INC (CA1510029) |
Perfluorohexanoic acid (PFHxA)
- Result
- 3.4 ng/L
- Benchmark
- 400,000 ng/L Michigan EGLE state MCL (strictest US state)
- Status
- Within a historical reference; current applicability unverified
- Sampled
- 2025-02-10 to 2025-08-08
Perfluoropentanoic acid (PFPeA)
- Result
- 3.1 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Detected, no limit
- Sampled
- 2025-02-10 to 2025-08-08
29 other contaminants tested — none detected
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
- Result
- < 5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
- Result
- < 5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
- Result
- < 5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
- Result
- < 2 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
- Result
- < 5 ng/L
- Benchmark
- 10 ng/L federal MCL (2024)
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
- Result
- Non-Detect (ND)
- Benchmark
- 15 µg/L federal action level
- Status
- Not detected above the reporting limit
- Sampled
- 2023–2025 monitoring period
- Result
- < 9 µg/L
- Benchmark
- 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
- Result
- < 5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
- Result
- < 6 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
- Result
- < 20 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluoro-3-methoxypropanoic acid (PFMPA)
- Result
- < 4 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluoro-4-methoxybutanoic acid (PFMBA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluorobutanesulfonic acid (PFBS)
- Result
- < 3 ng/L
- Benchmark
- 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
- Result
- < 5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluorododecanoic acid (PFDoA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluoroheptanesulfonic acid (PFHpS)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluoroheptanoic acid (PFHpA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluorohexanesulfonic acid (PFHxS)
- Result
- < 3 ng/L
- Benchmark
- 10 ng/L federal MCL (2024)
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
- Result
- < 4 ng/L
- Benchmark
- 10 ng/L federal MCL (2024)
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluorooctanesulfonic acid (PFOS)
- Result
- < 4 ng/L
- Benchmark
- 4.0 ng/L federal MCL (2024)
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
- Result
- < 4 ng/L
- Benchmark
- 4.0 ng/L federal MCL (2024)
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluoropentanesulfonic acid (PFPeS)
- Result
- < 4 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluorotetradecanoic acid (PFTA)
- Result
- < 8 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluorotridecanoic acid (PFTrDA)
- Result
- < 7 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Perfluoroundecanoic acid (PFUnA)
- Result
- < 2 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2025-02-10 to 2025-08-08
Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.
UCMR5 Analytical Results
UCMR5 Analytical Results: VAUGHN WC INC (CA1510029)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: VAUGHN WC INC (CA1510029)
US EPA SDWIS
Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.
Something off with your water's smell, color or taste?
Start with the hot-or-cold tap check. Where Vaughn WC Inc reported something related, it's shown below.
- Rotten-egg smell
- Cloudy or milky water
- Chlorine smell
- Brown or yellow water
- Metallic taste
Lead at Vaughn WC Inc: not detected (90th percentile, 2023–2025 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.