Contaminant
PFOS
Storet Code
99598
Measured Amount
1.6
Units
NG/L
PWS Name
ONALASKA WATERWORKS
PWS ID
63203272
Zip
54650
PWS Type
Municipal community
Region
West Central Region
County
La Crosse
Population
18000
PWS Status
Active
Service Types
City
Sampled Well Status
Active
Sample Date
2/11/2026
Sample Type
Investigation
Sample Source
Entry Point
Source ID
9
WI Unique Well No
BG179
Availability
Permanent
DNR Sample Group
PFAS
Sample ID
CE01435-07
Limit of Detection
0.49
Limit of Quantification
1.7
Analysis Method
537.1 Perfluorinated
Reporting Limit
Maximum Contaminant Limit (MCL)
MCL Units
NG/L
Lab ID
721026460
Lab Name
Northern Lake Service Inc. (Crandon)
