RICHLAND CITY OF
WA · PWS ID WA5372250 · Community water system
105
contaminants tested
33
detected
106,499
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0089 ug/L | 2/10 | 2023 |
| PFHxA | 0.0116 ug/L | 2/10 | 2023 |
| PFHxS | 0.0054 ug/L | 2/10 | 2023 |
| PFOA | 0.0101 ug/L | 2/10 | 2023 |
| PFOS | 0.0170 ug/L | 2/10 | 2023 |
| PFPeA | 0.0145 ug/L | 2/10 | 2023 |
| PFBA | 0.0066 ug/L | 1/10 | 2023 |
| PFHpA | 0.0058 ug/L | 1/10 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 91.39 UG/L | 275/275 | SYR4 | 2012–2019 |
| Chloroform | 81.09 UG/L | 267/268 | SYR4 | 2012–2019 |
| Bromodichloromethane | 8.63 UG/L | 265/268 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 63.39 UG/L | 256/256 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 30.6 UG/L | 251/251 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 37.9 UG/L | 248/248 | SYR4 | 2012–2019 |
| Dibromochloromethane | 14.1137 UG/L | 185/267 | SYR4 | 2012–2019 |
| Bromoform | 14.4165 UG/L | 158/263 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 2.48 UG/L | 69/256 | SYR4 | 2012–2019 |
| Nitrate | 3300 UG/L | 34/46 | SYR4 | 2012–2019 |
| COPPER, FREE | 46.8 UG/L | 16/17 | SYR4 | 2012–2019 |
| Barium | 86.4 UG/L | 15/15 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0099 mg/L | 15/15 | LCR | 2024 |
| Monochloroacetic acid | 1.59 UG/L | 11/256 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 3140 UG/L | 11/15 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 1.14 UG/L | 10/256 | SYR4 | 2012–2019 |
| Arsenic | 5.56 UG/L | 8/15 | SYR4 | 2012–2019 |
| Fluoride | 229 UG/L | 8/15 | SYR4 | 2012–2019 |
| Selenium | 1.84 UG/L | 5/15 | SYR4 | 2012–2019 |
| 1,2,4-Trichlorobenzene | 0.1000 UG/L | 3/20 | SYR4 | 2012–2019 |
| CHLOROBENZENE | 0.0200 UG/L | 1/20 | SYR4 | 2012–2019 |
| Chromium | 1.78 UG/L | 1/15 | SYR4 | 2012–2019 |
| Dalapon | 1.17 UG/L | 1/7 | SYR4 | 2013–2019 |
| Tetrachloroethylene | 2.74 UG/L | 1/20 | SYR4 | 2012–2019 |
| Xylenes, Total | 0.0700 UG/L | 1/20 | SYR4 | 2012–2019 |
72 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCYANIDECadmiumCarbon tetrachlorideChlordaneDICHLOROMETHANEDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebETHYLENE DIBROMIDEEndrinEthylbenzeneGross Beta Particle ActivityHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOLeadMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitritePFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chloridecis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene