LINCOLN COUNTY RURAL WATER SYSTEM
SD · PWS ID SD4600304 · Community water system
35
contaminants tested
7
detected
5,965
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0061 ug/L | 1/4 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| COPPER, FREE | 630 UG/L | 122/122 | SYR4 | 2013–2018 |
| Lead | 11.1 UG/L | 122/122 | SYR4 | 2013–2018 |
| TTHM | 34.1 UG/L | 19/19 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 22 UG/L | 19/19 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0130 mg/L | 14/14 | LCR | 2024 |
| lithium | 55 ug/L | 4/4 | UCMR-5 | 2023 |
28 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAHFPO-DANEtFOSAANFDHANMeFOSAAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnA
Areas served
SIOUX FALLS