No health-based violations on EPA record since 2016.
Serves about 819 people (456 connections) with groundwater from its own wells.
From EPA's record for AZ0412006. PurityMap is independent of Patagonia Water Department.
Are you this utility? Correct this listing →
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 March 2025 to September 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 12 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 | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| 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 | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| 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 | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| 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 | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| 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 | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| 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 | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| 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 | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-03 to 2025-09-09 | UCMR5 Analytical Results: PATAGONIA WATER DEPARTMENT (AZ0412006) |
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
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 →Patagonia Water Department's phone number on EPA record is 520-604-0510. Its mailing address is GEORGE P DEITHORN, PO BOX 767, PATAGONIA, AZ 85624.
According to EPA's record, Patagonia Water Department uses groundwater from its own wells.
No health-based violations on EPA record since 2016. EPA also lists 11 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Patagonia Water Department's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for Patagonia Water Department. Its phone number on EPA record is 520-604-0510. Its mailing address on EPA record is GEORGE P DEITHORN, PO BOX 767, PATAGONIA, AZ 85624. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.