FLOWING WELLS IRRIGATION DISTRICT
AZ · PWS ID AZ0410051 · Community water system
111
contaminants tested
24
detected
16,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0090 ug/L | 5/12 | 2023 |
| PFBS | 0.0040 ug/L | 2/12 | 2023 |
| PFHxA | 0.0030 ug/L | 2/12 | 2023 |
| PFOA | 0.0050 ug/L | 2/12 | 2023 |
| PFOS | 0.0060 ug/L | 2/12 | 2023 |
| PFPeA | 0.0040 ug/L | 2/12 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 13.6 UG/L | 103/103 | SYR4 | 2012–2019 |
| Nitrate | 3760 UG/L | 96/96 | SYR4 | 2012–2019 |
| COPPER, FREE | 230 UG/L | 84/93 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 3760 UG/L | 42/42 | SYR4 | 2013–2019 |
| Arsenic | 15 UG/L | 23/24 | SYR4 | 2013–2019 |
| Barium | 91 UG/L | 19/20 | SYR4 | 2013–2019 |
| Fluoride | 550 UG/L | 19/20 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 3.8 UG/L | 18/103 | SYR4 | 2012–2019 |
| Selenium | 8.9 UG/L | 16/20 | SYR4 | 2013–2019 |
| Lead | 61 UG/L | 13/93 | SYR4 | 2013–2019 |
| Bromoform | 4.1 UG/L | 12/12 | SYR4 | 2019 |
| lithium | 228 ug/L | 11/12 | UCMR-5 | 2023 |
| LEAD SUMMARY | 0.0130 mg/L | 9/9 | LCR | 2025 |
| Dibromochloromethane | 1 UG/L | 5/12 | SYR4 | 2019 |
| Trichloroethylene | 7.1 UG/L | 5/25 | SYR4 | 2012–2019 |
| Chromium | 6 UG/L | 2/20 | SYR4 | 2013–2019 |
| Combined Radium (-226 and -228) | 0.9000 PCI/L | 1/15 | SYR4 | 2016–2019 |
| Xylenes, Total | 2.3 UG/L | 1/25 | SYR4 | 2012–2019 |
87 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalBromodichloromethaneCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChloroformDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDibromoacetic acidDichloroacetic AcidDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidVinyl chloridecis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
TUCSON