Contaminant
FLUORIDE
Storet Code
951
Measured Amount
0.15
Units
MG/L
PWS Name
POTOSI WATERWORKS
PWS ID
12201178
Zip
53820
PWS Type
Municipal community
Region
South Central Region
County
Grant
Population
718
PWS Status
Active
Service Types
Village
Sampled Well Status
Active
Sample Date
7/22/2026
Sample Type
Compliance
Sample Source
Entry Point
Source ID
2
WI Unique Well No
BF882
Availability
Permanent
DNR Sample Group
IOC
Sample ID
CE08120-01
Limit of Detection
.093
Limit of Quantification
.31
Analysis Method
300.0 Fluoride by IC
Reporting Limit
Maximum Contaminant Limit (MCL)
4
MCL Units
MG/L
Lab ID
721026460
Lab Name
Northern Lake Service Inc. (Crandon)