Contaminant
NITRATE (N03-N)
Storet Code
620
Measured Amount
5.7
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
1/22/2026
Sample Type
Compliance
Sample Source
Entry Point
Source ID
10
WI Unique Well No
PG968
Availability
Permanent
DNR Sample Group
IOC
Sample ID
26A0509-04
Limit of Detection
.15
Limit of Quantification
Analysis Method
EPA 300.0
Reporting Limit
Maximum Contaminant Limit (MCL)
10
MCL Units
MG/L
Lab ID
632021390
Lab Name
Davy Laboratories