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 11/15/2026 Attachment 1 11/15/2026 05:32:02 PM

If any of the following information has changed, please contact your DNR representative with any corrections:
ZENTNER, SONNY EAU CLAIRE, WI 54701
Phone: (715) 928-1624 Email: SONNY.ZENTNER@WISCONSIN.GOV

System Name: RIVER FALLS WATERWORKS PWS ID#: 64802463 Population: 16,000

Sampler: WATER SUPERINTENDENT TODD NICKLESKI Owner: RIVER FALLS MUNICIPAL UTILITY

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 Bacteria151
COMPLETEJANUARYDistributionFluoride - Operator/Lab Split21
COMPLETEJANUARY - MARCH2 RawColiform Bacteria11
COMPLETEJANUARY - MARCH3 RawColiform Bacteria11
COMPLETEJANUARY - MARCH4 RawColiform Bacteria11
COMPLETEJANUARY - MARCH5 RawColiform Bacteria11
COMPLETEJANUARY - MARCH6 RawColiform Bacteria11
COMPLETEJANUARY - SEPTEMBEREP 2Inorganics127
COMPLETEJANUARY - SEPTEMBEREP 3Inorganics127
COMPLETEJANUARY - SEPTEMBEREP 4Inorganics127
COMPLETEJANUARY - SEPTEMBEREP 5Inorganics127
COMPLETEJANUARY - SEPTEMBEREP 6Inorganics127
COMPLETEJANUARY - SEPTEMBEREP 2Radioactivity - Grab14
COMPLETEJANUARY - SEPTEMBEREP 3Radioactivity - Grab14
COMPLETEJANUARY - SEPTEMBEREP 4Radioactivity - Grab14
COMPLETEJANUARY - SEPTEMBEREP 5Radioactivity - Grab14
COMPLETEJANUARY - SEPTEMBEREP 6Radioactivity - Grab14
COMPLETEJANUARY - SEPTEMBEREP 2Volatile Organics141
COMPLETEJANUARY - SEPTEMBEREP 3Volatile Organics141
COMPLETEJANUARY - SEPTEMBEREP 4Volatile Organics141
COMPLETEJANUARY - SEPTEMBEREP 5Volatile Organics141
COMPLETEJANUARY - SEPTEMBEREP 6Volatile Organics141
COMPLETEFEBRUARYDistributionColiform Bacteria151
COMPLETEFEBRUARYDistributionFluoride - Operator/Lab Split21
COMPLETEMARCHDistributionColiform Bacteria151
COMPLETEMARCHDistributionFluoride - Operator/Lab Split21
COMPLETEAPRILDistributionColiform Bacteria151
COMPLETEAPRILDistributionFluoride - Operator/Lab Split21
COMPLETEAPRILEP 2Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEAPRILEP 3Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEAPRILEP 4Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEAPRILEP 5Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEAPRILEP 6Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEAPRIL - JUNE2 RawColiform Bacteria11
COMPLETEAPRIL - JUNE3 RawColiform Bacteria11
COMPLETEAPRIL - JUNE4 RawColiform Bacteria11
COMPLETEAPRIL - JUNE5 RawColiform Bacteria11
COMPLETEAPRIL - JUNE6 RawColiform Bacteria11
COMPLETEMAYDistributionColiform Bacteria151
COMPLETEMAYDistributionFluoride - Operator/Lab Split21
COMPLETEJUNEDistributionColiform Bacteria151
COMPLETEJUNEDistributionFluoride - Operator/Lab Split21
COMPLETEJUNE - SEPTEMBERDistributionLead and copper302
COMPLETEJULYDistributionColiform Bacteria151
COMPLETEJULYDistributionFluoride - Operator/Lab Split21
COMPLETEJULYEP 2Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEJULYEP 3Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEJULYEP 4Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEJULYEP 5Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEJULYEP 6Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEJULY - SEPTEMBER2 RawColiform Bacteria11
COMPLETEJULY - SEPTEMBER3 RawColiform Bacteria11
COMPLETEJULY - SEPTEMBER4 RawColiform Bacteria11
COMPLETEJULY - SEPTEMBER5 RawColiform Bacteria11
COMPLETEJULY - SEPTEMBER6 RawColiform Bacteria11
COMPLETEJULY - SEPTEMBERDistributionDisinfection Byproducts (TTHM, HAA5)211
COMPLETEAUGUSTDistributionColiform Bacteria151
COMPLETEAUGUSTDistributionFluoride - Operator/Lab Split21
COMPLETESEPTEMBERDistributionColiform Bacteria151
COMPLETESEPTEMBERDistributionFluoride - Operator/Lab Split21
COMPLETEOCTOBERDistributionColiform Bacteria151
COMPLETEOCTOBERDistributionFluoride - Operator/Lab Split21
COMPLETEOCTOBEREP 2Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEOCTOBEREP 3Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEOCTOBEREP 4Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEOCTOBEREP 5Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEOCTOBEREP 6Per/Poly-Fluoroalkyls (PFAS)16
COMPLETEOCTOBER - DECEMBER2 RawAmmonia11
COMPLETEOCTOBER - DECEMBER3 RawAmmonia11
COMPLETEOCTOBER - DECEMBER4 RawAmmonia11
COMPLETEOCTOBER - DECEMBER5 RawAmmonia11
COMPLETEOCTOBER - DECEMBER6 RawAmmonia11
COMPLETEOCTOBER - DECEMBER2 RawColiform Bacteria11
COMPLETEOCTOBER - DECEMBER3 RawColiform Bacteria11
COMPLETEOCTOBER - DECEMBER4 RawColiform Bacteria11
COMPLETEOCTOBER - DECEMBER5 RawColiform Bacteria11
COMPLETEOCTOBER - DECEMBER6 RawColiform Bacteria11
NOVEMBERDistributionColiform Bacteria151
NOVEMBERDistributionFluoride - Operator/Lab Split21
DECEMBERDistributionColiform Bacteria151
DECEMBERDistributionFluoride - Operator/Lab Split21
Waivers:
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)4Waiver issued - No sampling required during calendar year 2026
Asbestos (Inorganic Report Form)5Waiver issued - No sampling required during calendar year 2026
Asbestos (Inorganic Report Form)6Waiver 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)4Waiver issued - No sampling required during calendar year 2026
Benzo(A)Pyrene (Synthetic Form)5Waiver issued - No sampling required during calendar year 2026
Benzo(A)Pyrene (Synthetic Form)6Waiver 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)4Waiver issued - No sampling required during calendar year 2026
Cyanide (Inorganic Report Form)5Waiver issued - No sampling required during calendar year 2026
Cyanide (Inorganic Report Form)6Waiver 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)4Waiver issued - No sampling required during calendar year 2026
Dioxin (Synthetic Report Form)5Waiver issued - No sampling required during calendar year 2026
Dioxin (Synthetic Report Form)6Waiver 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)4Waiver issued - No sampling required during calendar year 2026
EDB/DBCP (Synthetic Report Form)5Waiver issued - No sampling required during calendar year 2026
EDB/DBCP (Synthetic Report Form)6Waiver issued - No sampling required during calendar year 2026
Industrial Chemicals (Synthetic Form)2Waiver 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)4Waiver issued - No sampling required during calendar year 2026
Industrial Chemicals (Synthetic Form)5Waiver issued - No sampling required during calendar year 2026
Industrial Chemicals (Synthetic Form)6Waiver issued - No sampling required during calendar year 2026
Pesticides (Synthetic Report Form)2Waiver issued - No sampling required during calendar year 2026
Pesticides (Synthetic Report Form)3Waiver issued - No sampling required during calendar year 2026
Pesticides (Synthetic Report Form)4Waiver issued - No sampling required during calendar year 2026
Pesticides (Synthetic Report Form)5Waiver issued - No sampling required during calendar year 2026
Pesticides (Synthetic Report Form)6Waiver issued - No sampling required during calendar year 2026