Wisconsin Department of Natural Resources Drinking Water System Routine Monitoring Requirements Period: 01/01/2026 to 12/31/2026 Subject to change -- based on information provided to DNR as of 09/08/2026 Attachment 1 09/08/2026 04:31:16 AM

If any of the following information has changed, please contact your DNR representative with any corrections:
RATARASARN, THANINTR Waukesha, WI 53188
Phone: (262) 765-0912 Email: THANINTR.RATARASARN@WISCONSIN.GOV

System Name: PRAIRIE VILLAGE WATER TRUST PWS ID#: 26802776 Population: 2,100

Sampler: CTW CORP SCOTT WEIGAND Owner: TRUSTEES - MITCH GRULKE - JOHN ROSSBACH - ED WESTRICK

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
COMPLETEJANUARYDistributionColiform Bacteria21
COMPLETEJANUARY - MARCH1 RawColiform Bacteria11
COMPLETEJANUARY - MARCH3 RawColiform Bacteria11
COMPLETEJANUARY - MARCHEP 3Nitrate11
COMPLETEJANUARY - MARCHEP 200Nitrate11
COMPLETEJANUARY - MARCHEP 3Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEJANUARY - SEPTEMBEREP 3Inorganics126
COMPLETEJANUARY - SEPTEMBEREP 200Inorganics126
COMPLETEJANUARY - SEPTEMBEREP 3Radioactivity - Grab14
COMPLETEJANUARY - SEPTEMBEREP 200Radioactivity - Grab14
COMPLETEJANUARY - SEPTEMBEREP 3Volatile Organics121
COMPLETEJANUARY - SEPTEMBEREP 200Volatile Organics121
COMPLETEFEBRUARYDistributionColiform Bacteria21
COMPLETEMARCHDistributionColiform Bacteria21
COMPLETEAPRILDistributionColiform Bacteria21
COMPLETEAPRIL - JUNE1 RawColiform Bacteria11
COMPLETEAPRIL - JUNE3 RawColiform Bacteria11
COMPLETEAPRIL - JUNEEP 3Nitrate11
COMPLETEAPRIL - JUNEEP 200Nitrate11
COMPLETEAPRIL - JUNEEP 3Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEMAYDistributionColiform Bacteria21
COMPLETEMAY - JUNE2 RawColiform Bacteria11
COMPLETEJUNEDistributionColiform Bacteria21
COMPLETEJUNE - SEPTEMBERDistributionLead and copper102
COMPLETEJULYDistributionColiform Bacteria21
COMPLETEJULYEP 200Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEJULY - SEPTEMBER1 RawColiform Bacteria11
COMPLETEJULY - SEPTEMBER2 RawColiform Bacteria11
COMPLETEJULY - SEPTEMBER3 RawColiform Bacteria11
COMPLETEJULY - SEPTEMBERDistributionDisinfection Byproducts (TTHM, HAA5)111
COMPLETEJULY - SEPTEMBEREP 3Nitrate11
COMPLETEJULY - SEPTEMBEREP 200Nitrate11
COMPLETEJULY - SEPTEMBEREP 3Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEAUGUSTDistributionColiform Bacteria21
SEPTEMBERDistributionColiform Bacteria21
OCTOBERDistributionColiform Bacteria21
OCTOBER - DECEMBER1 RawAmmonia11
OCTOBER - DECEMBER2 RawAmmonia11
OCTOBER - DECEMBER3 RawAmmonia11
OCTOBER - DECEMBER1 RawColiform Bacteria11
OCTOBER - DECEMBER2 RawColiform Bacteria11
OCTOBER - DECEMBER3 RawColiform Bacteria11
OCTOBER - DECEMBEREP 3Nitrate11
OCTOBER - DECEMBEREP 200Nitrate11
OCTOBER - DECEMBEREP 3Per/Poly-Fluoroalkyls (PFAS)16
NOVEMBERDistributionColiform Bacteria21
DECEMBERDistributionColiform Bacteria21
Waivers:
Asbestos (Inorganic Report Form)1Waiver issued - No sampling required during calendar year 2026
Asbestos (Inorganic Report Form)2Waiver issued - No sampling required during calendar year 2026
Asbestos (Inorganic Report Form)3Waiver issued - No sampling required during calendar year 2026
Asbestos (Inorganic Report Form)200Waiver issued - No sampling required during calendar year 2026
Benzo(A)Pyrene (Synthetic Form)1Waiver issued - No sampling required during calendar year 2026
Benzo(A)Pyrene (Synthetic Form)2Waiver issued - No sampling required during calendar year 2026
Benzo(A)Pyrene (Synthetic Form)3Waiver issued - No sampling required during calendar year 2026
Benzo(A)Pyrene (Synthetic Form)200Waiver issued - No sampling required during calendar year 2026
Cyanide (Inorganic Report Form)1Waiver issued - No sampling required during calendar year 2026
Cyanide (Inorganic Report Form)2Waiver issued - No sampling required during calendar year 2026
Cyanide (Inorganic Report Form)3Waiver issued - No sampling required during calendar year 2026
Cyanide (Inorganic Report Form)200Waiver issued - No sampling required during calendar year 2026
Dioxin (Synthetic Report Form)1Waiver issued - No sampling required during calendar year 2026
Dioxin (Synthetic Report Form)2Waiver issued - No sampling required during calendar year 2026
Dioxin (Synthetic Report Form)3Waiver issued - No sampling required during calendar year 2026
Dioxin (Synthetic Report Form)200Waiver issued - No sampling required during calendar year 2026
EDB/DBCP (Synthetic Report Form)1Waiver issued - No sampling required during calendar year 2026
EDB/DBCP (Synthetic Report Form)2Waiver issued - No sampling required during calendar year 2026
EDB/DBCP (Synthetic Report Form)3Waiver issued - No sampling required during calendar year 2026
EDB/DBCP (Synthetic Report Form)200Waiver issued - No sampling required during calendar year 2026
Industrial Chemicals (Synthetic Form)3Waiver issued - No sampling required during calendar year 2026
Industrial Chemicals (Synthetic Form)200Waiver issued - No sampling required during calendar year 2026
Synthetic Organics - Pop < 100001Waiver issued - No sampling required during calendar year 2026
Synthetic Organics - Pop < 100002Waiver issued - No sampling required during calendar year 2026
Synthetic Organics - Pop < 100003Waiver issued - No sampling required during calendar year 2026