No open health-based violations on EPA record in the last 10 years.
Serves about 16,000 people (3,662 connections) with groundwater from its own wells.
From EPA's record for AZ0410051. PurityMap is independent of Flowing Wells Irrigation District.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2024 | Lead and copper rule revisions | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2023 to August 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 228 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 | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorooctanesulfonic acid (PFOS) | 6 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorooctanoic acid (PFOA) | 5 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorohexanesulfonic acid (PFHxS) | 9 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorobutanesulfonic acid (PFBS) | 4 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 | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorohexanoic acid (PFHxA) | 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluoropentanoic acid (PFPeA) | 4 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| 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 | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| 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 | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| 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 | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| 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 | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| 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 | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-28 to 2023-08-03 | UCMR5 Analytical Results: FLOWING WELLS IRRIGATION DISTRICT (AZ0410051) |
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 →Flowing Wells Irrigation District's phone number on EPA record is 520-887-4192. Its mailing address is ATTN: RICHARD RUBAL, 3901 N FAIRVIEW, TUCSON, AZ 85705.
According to EPA's record, Flowing Wells Irrigation District uses groundwater from its own wells.
EPA's record shows 1 health-based violation for Flowing Wells Irrigation District in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 84 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 Flowing Wells Irrigation District'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 Flowing Wells Irrigation District. Its phone number on EPA record is 520-887-4192. Its mailing address on EPA record is ATTN: RICHARD RUBAL, 3901 N FAIRVIEW, TUCSON, AZ 85705. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.