No health-based violations on EPA record since 2016.
Serves about 45,570 people (18,196 connections) with groundwater from its own wells, and buys water from Tucson Water.
From EPA's record for AZ0410076. PurityMap is independent of Metropolitan Dwid.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from May 2024 to May 2025.
| Contaminant | Result | Limit | 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| Perfluorohexanesulfonic acid (PFHxS) | 3.9 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2024-05-08 to 2025-05-14 | UCMR5 Analytical Results: METROPOLITAN DWID (AZ0410076) |
| 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) |
| 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) |
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
Turnaround: 5 minutes
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
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
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.
Get PurityMap updates about this water system.
Follow this water →Metropolitan Dwid's phone number on EPA record is 520-209-2842. Its mailing address is 6265 N LA CANADA DR, TUCSON, AZ 85704.
According to EPA's record, Metropolitan Dwid uses groundwater from its own wells, and buys water from Tucson Water.
No health-based violations on EPA record since 2016. EPA also lists 72 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Metropolitan Dwid's latest lead and copper round, which ended in December 2025, was 0.57 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Metropolitan Dwid. Its phone number on EPA record is 520-209-2842. Its mailing address on EPA record is 6265 N LA CANADA DR, TUCSON, AZ 85704. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.