DECORAH WATER DEPARTMENT
IA · PWS ID IA9630012 · Community water system
91
contaminants tested
21
detected
7,615
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0070 ug/L | 2/12 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 9600 UG/L | 380/390 | SYR4 | 2012–2019 |
| Fluoride | 1600 UG/L | 100/102 | SYR4 | 2012–2019 |
| COPPER, FREE | 652 UG/L | 61/61 | SYR4 | 2012–2019 |
| Lead | 32.6 UG/L | 54/61 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0140 mg/L | 14/14 | LCR | 2025 |
| Bromodichloromethane | 6.56 UG/L | 7/7 | SYR4 | 2013–2019 |
| Chloroform | 13.8 UG/L | 7/7 | SYR4 | 2013–2019 |
| Dibromochloromethane | 4.47 UG/L | 7/7 | SYR4 | 2013–2019 |
| TTHM | 26.1 UG/L | 7/7 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 2.02 UG/L | 7/7 | SYR4 | 2013–2019 |
| Barium | 108 UG/L | 6/6 | SYR4 | 2012 |
| Bromoform | 1.27 UG/L | 5/7 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 12.3 UG/L | 5/7 | SYR4 | 2013–2019 |
| Dibromoacetic acid | 1.06 UG/L | 4/7 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 33.6 UG/L | 4/7 | SYR4 | 2013–2019 |
| Antimony, Total | 2.5 UG/L | 3/6 | SYR4 | 2012 |
| Monochloroacetic acid | 12 UG/L | 3/7 | SYR4 | 2013–2019 |
| Thallium, Total | 1.3 UG/L | 3/6 | SYR4 | 2012 |
| Monobromoacetic acid | 16.8 UG/L | 1/7 | SYR4 | 2013–2019 |
| Selenium | 2 UG/L | 1/6 | SYR4 | 2012 |
70 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-PF3ONSADONAArsenicAsbestosAtrazineBenzeneBenzo(a)pyreneCHLOROBENZENECadmiumCarbon tetrachlorideChromiumCombined Radium (-226 and -228)DICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatEthylbenzeneGlyphosateHFPO-DALASSOMercuryNEtFOSAANFDHANMeFOSAAPFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
DECORAH