SIOUX CITY WATER SUPPLY
IA · PWS ID IA9778054 · Community water system
91
contaminants tested
29
detected
85,791
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0092 ug/L | 4/8 | 2024 |
| PFBS | 0.0210 ug/L | 4/8 | 2024 |
| PFHxA | 0.0330 ug/L | 4/8 | 2024 |
| PFHxS | 0.0350 ug/L | 4/8 | 2024 |
| PFPeA | 0.0220 ug/L | 4/8 | 2024 |
| PFPeS | 0.0140 ug/L | 4/8 | 2024 |
| PFHpA | 0.0048 ug/L | 3/8 | 2024 |
| PFOA | 0.0060 ug/L | 2/8 | 2024 |
| PFOS | 0.0043 ug/L | 2/8 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 35 UG/L | 248/248 | SYR4 | 2012–2019 |
| Chloroform | 90 UG/L | 248/248 | SYR4 | 2012–2019 |
| Dibromochloromethane | 16 UG/L | 248/248 | SYR4 | 2012–2019 |
| TTHM | 140 UG/L | 248/248 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 31 UG/L | 248/248 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 29 UG/L | 247/248 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 59 UG/L | 247/248 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 3 UG/L | 228/248 | SYR4 | 2012–2019 |
| COPPER, FREE | 3800 UG/L | 206/216 | SYR4 | 2013–2019 |
| Bromoform | 2.3 UG/L | 138/248 | SYR4 | 2012–2019 |
| Lead | 230 UG/L | 82/216 | SYR4 | 2013–2019 |
| Monochloroacetic acid | 3 UG/L | 23/248 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0080 mg/L | 16/16 | LCR | 2025 |
| cis-1,2-Dichloroethylene | 0.9000 UG/L | 15/20 | SYR4 | 2012–2019 |
| Nitrate | 2600 UG/L | 8/30 | SYR4 | 2012–2019 |
| lithium | 240 ug/L | 8/8 | UCMR-5 | 2024 |
| Toluene | 2.5 UG/L | 2/7 | SYR4 | 2012–2018 |
| Arsenic | 2 UG/L | 1/2 | SYR4 | 2014–2017 |
| Carbon tetrachloride | 1 UG/L | 1/6 | SYR4 | 2012–2018 |
| Fluoride | 660 UG/L | 1/1 | SYR4 | 2014 |
62 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, TotalAsbestosAtrazineBariumBenzeneBenzo(a)pyreneCHLOROBENZENECadmiumChromiumCombined Radium (-226 and -228)DICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatEthylbenzeneGlyphosateHFPO-DALASSOMercuryMonobromoacetic acidNEtFOSAANFDHANMeFOSAAPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTrichloroethyleneVinyl chlorideXylenes, Totalo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
SIOUX CITY