MONONA WATERWORKS
WI · PWS ID WI1130245 · Community water system
106
contaminants tested
26
detected
8,624
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0110 ug/L | 2/3 | 2025 |
| PFBS | 0.0053 ug/L | 2/3 | 2025 |
| PFHxS | 0.0054 ug/L | 2/3 | 2025 |
| PFHxA | 0.0042 ug/L | 1/3 | 2025 |
| PFPeA | 0.0046 ug/L | 1/3 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Fluoride | 1190 UG/L | 99/198 | SYR4 | 2012–2019 |
| COPPER, FREE | 721 UG/L | 40/40 | SYR4 | 2014–2017 |
| Dibromochloromethane | 5.8 UG/L | 18/28 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 4490 UG/L | 16/24 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0096 mg/L | 15/15 | LCR | 2023 |
| Bromodichloromethane | 5.5 UG/L | 14/28 | SYR4 | 2012–2019 |
| Bromoform | 2.4 UG/L | 11/28 | SYR4 | 2012–2019 |
| Chloroform | 4.1 UG/L | 8/28 | SYR4 | 2012–2019 |
| Nitrate | 4490 UG/L | 8/12 | SYR4 | 2014–2017 |
| TTHM | 17.4 UG/L | 8/8 | SYR4 | 2013–2019 |
| Dibromoacetic acid | 1.6 UG/L | 7/8 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 2.7 UG/L | 7/8 | SYR4 | 2013–2019 |
| Barium | 61.3 UG/L | 6/6 | SYR4 | 2014–2017 |
| Lead | 7.19 UG/L | 6/40 | SYR4 | 2014–2017 |
| Dichloroacetic Acid | 1.3 UG/L | 4/8 | SYR4 | 2013–2019 |
| Tetrachloroethylene | 0.7800 UG/L | 4/28 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 1.72 PCI/L | 3/3 | SYR4 | 2014 |
| Gross Alpha, Excl. Radon and U | 7.21 PCI/L | 2/2 | SYR4 | 2014 |
| Gross Beta Particle Activity | 2.79 PCI/L | 2/2 | SYR4 | 2014 |
| Styrene | 0.1100 UG/L | 1/28 | SYR4 | 2012–2019 |
| Xylenes, Total | 0.3300 UG/L | 1/28 | SYR4 | 2012–2019 |
80 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, TotalArsenicAtrazineBHC-GAMMABenzeneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl chloridecis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
MONONA