Contaminant
FLUORIDE
Storet Code
99951
Measured Amount
0.69
Units
MG/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
3/11/2026
Sample Type
Compliance
Sample Source
Distribution System
Source ID
WI Unique Well No
Availability
Other
DNR Sample Group
FLUORIDE
Sample ID
836602001
Limit of Detection
Limit of Quantification
Analysis Method
Field Fluoride Data
Reporting Limit
Maximum Contaminant Limit (MCL)
4
MCL Units
MG/L
Lab ID
113133790
Lab Name
Wisconsin State Laboratory of Hygiene