Short answer: No measured result is above a legal limit; lithium sits above a screening level. Metropolitan Dwid serves 45,570 residents.
Your water bill or annual water quality report names your actual supplier.
METROPOLITAN DWID (EPA PWSID AZ0410076) delivers groundwater to 45,570 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.
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.
Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.
lead 0.57 µg/L, below the 15 µg/L action level
PFHxS 3.9 ng/L, below the 10 ng/L limit (+1 more PFAS detected)
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
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
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 Casas Adobes findings its current certification covers, and which it doesn't.
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PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Casas Adobes, PFAS were detected below their limits; the lead 90th-percentile result was 0.57 µg/L against the 15 µg/L action level. METROPOLITAN DWID (PWSID AZ0410076) has a Purity Score of 92/100 (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.
METROPOLITAN DWID (PWS ID AZ0410076) is the public water system on record for Casas Adobes, Arizona, serving about 45,570 people. Confirm the utility on your water bill before acting on a specific finding.
Groundwater (primary source of record in EPA SDWIS).
In EPA's UCMR 5 testing (2024-05-08 to 2025-05-14), PFBS was detected at 4.8 ng/L, below the 2,000 ng/L EPA health advisory and PFHxS was detected at 3.9 ng/L, below the 10 ng/L federal limit.
METROPOLITAN DWID's most recent lead 90th-percentile result (2023–2025) was 0.57 µg/L, below the 15 µg/L action level. That figure comes from sampled homes; lead usually enters from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
PurityMap's current record for Casas Adobes holds 31 findings: 1 above a reference, 3 detected within the reference and 27 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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| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 18.3 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorohexanesulfonic acid (PFHxS) | 3.9 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Lead (90th percentile) | 0.57 µg/L | 15 µg/L federal action level | Below the listed reference | 2023–2025 monitoring period | Lead & Copper Rule 90th-percentile: METROPOLITAN DWID (AZ0410076) |
| Perfluorobutanesulfonic acid (PFBS) | 4.8 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| 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 | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| 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 | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| 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 | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| 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 | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| 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 | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
Perfluorohexanesulfonic acid (PFHxS)
Perfluorobutanesulfonic acid (PFBS)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexanoic acid (PFHxA)
Perfluorooctanesulfonic acid (PFOS)
Perfluoropentanesulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)
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: METROPOLITAN DWID (AZ0410076)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: METROPOLITAN DWID (AZ0410076)
US EPA SDWIS
Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.
Start with the hot-or-cold tap check. Where Metropolitan Dwid reported something related, it's shown below.
Lead at Metropolitan Dwid: 0.57 µg/L (90th percentile, 2023–2025 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.