Contaminant
FLUORIDE
Storet Code
951
Measured Amount
0.2
Units
MG/L
PWS Name
ELKHORN WATERWORKS
PWS ID
26500628
Zip
53121
PWS Type
Municipal community
Region
Southeast Region
County
Walworth
Population
10317
PWS Status
Active
Service Types
City
Sampled Well Status
Active
Sample Date
4/22/2026
Sample Type
Compliance
Sample Source
Entry Point
Source ID
300
WI Unique Well No
Availability
Emergency
DNR Sample Group
IOC
Sample ID
WE02633-04
Limit of Detection
.033
Limit of Quantification
.13
Analysis Method
W- 300.0 Fluoride by
Reporting Limit
Maximum Contaminant Limit (MCL)
4
MCL Units
MG/L
Lab ID
268533760
Lab Name
Northern Lake Service Inc. - Waukesha