Contaminant
NITRATE (N03-N)
Storet Code
620
Measured Amount
4.3
Units
MG/L
PWS Name
COLBY WATERWORKS
PWS ID
73701694
Zip
54421
PWS Type
Municipal community
Region
West Central Region
County
Marathon
Population
1829
PWS Status
Active
Service Types
City
Sampled Well Status
Active
Sample Date
5/20/2025
Sample Type
Compliance
Sample Source
Entry Point
Source ID
200
WI Unique Well No
Availability
Permanent
DNR Sample Group
NITRATE
Sample ID
CD05682-01
Limit of Detection
.15
Limit of Quantification
.48
Analysis Method
300.0 Nitrate by IC
Reporting Limit
Maximum Contaminant Limit (MCL)
10
MCL Units
MG/L
Lab ID
721026460
Lab Name
Northern Lake Service Inc. (Crandon)