TRENTWOOD IRRIGATION DISTRICT 3
WA · PWS ID WA5389250 · Community water system
94
contaminants tested
13
detected
4,228
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0049 ug/L | 2/8 | 2024 |
| PFOS | 0.0120 ug/L | 2/8 | 2024 |
| PFHxA | 0.0040 ug/L | 1/8 | 2024 |
| PFOA | 0.0051 ug/L | 1/8 | 2024 |
| PFPeA | 0.0039 ug/L | 1/8 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 6720 UG/L | 66/66 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0270 mg/L | 12/12 | LCR | 2023 |
| Arsenic | 5.2 UG/L | 4/4 | SYR4 | 2012–2014 |
| Barium | 75.6 UG/L | 4/4 | SYR4 | 2012–2014 |
| Nitrate-Nitrite | 5780 UG/L | 4/4 | SYR4 | 2012–2014 |
| COPPER, FREE | 19.5 UG/L | 2/4 | SYR4 | 2012–2014 |
| Chromium | 3.6 UG/L | 1/4 | SYR4 | 2012–2014 |
| Lead | 4.39 UG/L | 1/4 | SYR4 | 2012–2014 |
81 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalBromodichloromethaneBromoformCHLOROBENZENECYANIDECadmiumCarbon tetrachlorideChlordaneChloroformDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDibromochloromethaneDinosebEndrinEthylbenzeneFluorideHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitritePFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene