Wisconsin Department of Natural Resources Drinking Water System Preliminary Routine Monitoring Requirements Period: 01/01/2027 to 12/31/2027 Subject to change -- based on information provided to DNR as of 11/01/2026 Attachment 1 11/01/2026 04:16:45 PM

If any of the following information has changed, please contact your DNR representative with any corrections:
GRAVLEE, SARAH FITCHBURG, WI 53911
Phone: (608) 910-1256 Email: SARAH.GRAVLEE@WISCONSIN.GOV

System Name: LAKE FOREST WATER COOP PWS ID#: 11302324 Population: 400

Sampler: KILLIAN, KARI-ANN - KA SAMPLING LLC Owner: GARY DAVIS

The following is a table of the routine monitoring required for this water system (additional monitoring may be required based on results of this monitoring). Each row represents a DNR monitoring requirement. Failure to complete a requirement may result in a monitoring violation. Please make sure that you are using the correct lab sheet for each sample, based on the correct time period, sample location and sample group.

Completed? Monitoring Period Sample Source Sample Group # of samples # of contams
JANUARYDistributionColiform Bacteria11
JANUARY - SEPTEMBEREP 1Inorganics126
JANUARY - SEPTEMBEREP 2Inorganics126
JANUARY - SEPTEMBEREP 1Radioactivity - Grab14
JANUARY - SEPTEMBEREP 2Radioactivity - Grab14
JANUARY - SEPTEMBEREP 1Synthetic Organics11
JANUARY - SEPTEMBEREP 1Volatile Organics121
JANUARY - SEPTEMBEREP 2Volatile Organics121
FEBRUARYDistributionColiform Bacteria11
MARCHDistributionColiform Bacteria11
APRILDistributionColiform Bacteria11
MAYDistributionColiform Bacteria11
JUNEDistributionColiform Bacteria11
JUNE - SEPTEMBERDistributionLead and copper52
JULYDistributionColiform Bacteria11
AUGUSTDistributionColiform Bacteria11
SEPTEMBERDistributionColiform Bacteria11
OCTOBERDistributionColiform Bacteria11
OCTOBER - DECEMBEREP 1Per/Poly-Fluoroalkyls (PFAS)16
OCTOBER - DECEMBEREP 2Per/Poly-Fluoroalkyls (PFAS)16
NOVEMBERDistributionColiform Bacteria11
DECEMBERDistributionColiform Bacteria11
Waivers:
Asbestos (Inorganic Report Form)1Waiver issued - No sampling required during calendar year 2027
Asbestos (Inorganic Report Form)2Waiver issued - No sampling required during calendar year 2027
Benzo(A)Pyrene (Synthetic Form)1Waiver issued - No sampling required during calendar year 2027
Benzo(A)Pyrene (Synthetic Form)2Waiver issued - No sampling required during calendar year 2027
Cyanide (Inorganic Report Form)1Waiver issued - No sampling required during calendar year 2027
Cyanide (Inorganic Report Form)2Waiver issued - No sampling required during calendar year 2027
Dioxin (Synthetic Report Form)1Waiver issued - No sampling required during calendar year 2027
Dioxin (Synthetic Report Form)2Waiver issued - No sampling required during calendar year 2027
EDB/DBCP (Synthetic Report Form)1Waiver issued - No sampling required during calendar year 2027
EDB/DBCP (Synthetic Report Form)2Waiver issued - No sampling required during calendar year 2027
Industrial Chemicals (Synthetic Form)1Waiver issued - No sampling required during calendar year 2027
Industrial Chemicals (Synthetic Form)2Waiver issued - No sampling required during calendar year 2027
Synthetic Organics - Pop < 100001Waiver issued - No sampling required during calendar year 2027
Synthetic Organics - Pop < 100002Waiver issued - No sampling required during calendar year 2027