Cottage Grove
MN · PWS ID MN1820004 · Community water system
102
contaminants tested
19
detected
42,760
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.2200 ug/L | 7/10 | 2025 |
| PFPeA | 0.0064 ug/L | 2/10 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| COPPER, FREE | 179 UG/L | 90/90 | SYR4 | 2013–2019 |
| Lead | 7.9 UG/L | 68/90 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 1400 UG/L | 64/84 | SYR4 | 2012–2019 |
| Fluoride | 1200 UG/L | 32/32 | SYR4 | 2012–2019 |
| Chloroform | 2.4 UG/L | 24/52 | SYR4 | 2012–2019 |
| Bromodichloromethane | 3.7 UG/L | 23/52 | SYR4 | 2012–2019 |
| Bromoform | 2.4 UG/L | 23/52 | SYR4 | 2012–2019 |
| Dibromochloromethane | 4.5 UG/L | 23/52 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon and U | 14 PCI/L | 14/14 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0073 mg/L | 14/14 | LCR | 2025 |
| Dibromoacetic acid | 2.8 UG/L | 10/29 | SYR4 | 2012–2019 |
| Trichloroethylene | 0.5100 UG/L | 10/23 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 0.3600 UG/L | 9/23 | SYR4 | 2012–2019 |
| Chromium | 0.3400 UG/L | 8/10 | SYR4 | 2012–2018 |
| Di(2-ethylhexyl) phthalate | 1.2 UG/L | 4/22 | SYR4 | 2012–2019 |
| Arsenic | 4.39 UG/L | 2/2 | SYR4 | 2012–2018 |
| Trichloroacetic Acid | 1 UG/L | 1/29 | SYR4 | 2012–2019 |
83 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBHC-GAMMABariumBenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDichloroacetic AcidDinosebETHYLENE DIBROMIDEEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneVinyl chloridelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene