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Sample and Compliance Schedules

Water System No. : MT0000201 Federal Type : C
Water System Name : DILLON CITY OF State Type : C
Principal County Served : BEAVERHEAD Primary Source : GW
Status : A Activity Date : 02-14-2000

TCR Schedules

Sample Count Sample Type Sample Frequency Effective Begin Date Effective End Date Seasonal Start MM/DD Seasonal End MM/DD Analyte Code Analyte Name
5 RT MN 07-01-2024 1/1 12/31 3100 COLIFORM (TCR)
Total Number of Schedules Displayed = 1

Frequent Field Sample Schedules

Water System Facility State Asgn ID Water System Facility Name Analyte Code Analyte Name Days to Monitor per month Samples Required per day Effective Begin Date Effective End Date Summary Type
DS001 DISTRIBUTION SYSTEM 0999 CHLORINE 31 1 07-01-2016 SDRD
TP001 TP FOR WELLS 1 2 0999 CHLORINE 31 1 01-01-2004 SERD
TP002 TP FOR WELL 4 0999 CHLORINE 31 1 01-01-2004 SERD
TP004 TP PLANT WELL 3 0999 CHLORINE 31 1 01-01-2004 SERD
Total Number of Schedules Displayed = 4

Non-TCR Group Schedules

Water System Facility State Asgn ID Water System Facility Name Analyte Group Code Analyte Group Name Sample Count Sample Type Sample Frequency Current Monitoring Period Date Range Next Monitoring Period Date Range
DS001 DISTRIBUTION SYSTEM ASBE CDS ASBESTOS 1 RT 3Y No Monitoring in Current Period 01-01-2029 to 12-31-2031
DS001 DISTRIBUTION SYSTEM DBP2 CDS DBP ST 2 1 RT YR 08-01-2026 to 08-31-2026 08-01-2027 to 08-31-2027
DS001 DISTRIBUTION SYSTEM PBCO CDS LCR ORTHOPHOSPH 1 RT YR 01-01-2026 to 12-31-2026 01-01-2027 to 12-31-2027
DS001 DISTRIBUTION SYSTEM PBCU CDS LEAD COPPER ONLY 20 RT 3Y 06-01-2025 to 09-30-2027 ----
TP001 TP FOR WELLS 1 2 ARSE CDS ARSENIC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP001 TP FOR WELLS 1 2 PBCO CDS LCR ORTHOPHOSPH 1 RT 6M Monitoring Completed 07-01-2026 to 12-31-2026
TP001 TP FOR WELLS 1 2 NITR CDS NITRATE NITRITE 1 RT YR Monitoring Completed 01-01-2027 to 12-31-2027
TP001 TP FOR WELLS 1 2 INO1 CDS P2-5 INORGANICS 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP001 TP FOR WELLS 1 2 GRAL CDS RAD GROSS ALPHA 1 RT 6Y 01-01-2023 to 12-31-2028 01-01-2029 to 12-31-2034
TP001 TP FOR WELLS 1 2 COMB CDS RADIUMS COMBINED 1 RT 9Y 01-01-2026 to 12-31-2034 01-01-2035 to 12-31-2043
TP001 TP FOR WELLS 1 2 SOC CDS SOC REGULATED 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP001 TP FOR WELLS 1 2 VOC1 CDS VOC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP001 TP FOR WELLS 1 2 SWW STATE WIDE WAIVERS 1 RT 9Y Monitoring Completed 01-01-2029 to 12-31-2037
TP002 TP FOR WELL 4 ARSE CDS ARSENIC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP002 TP FOR WELL 4 PBCO CDS LCR ORTHOPHOSPH 1 RT 6M Monitoring Completed 07-01-2026 to 12-31-2026
TP002 TP FOR WELL 4 NITR CDS NITRATE NITRITE 1 RT YR Monitoring Completed 01-01-2027 to 12-31-2027
TP002 TP FOR WELL 4 INO1 CDS P2-5 INORGANICS 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP002 TP FOR WELL 4 GRAL CDS RAD GROSS ALPHA 1 RT 6Y 01-01-2023 to 12-31-2028 01-01-2029 to 12-31-2034
TP002 TP FOR WELL 4 COMB CDS RADIUMS COMBINED 1 RT 9Y 01-01-2026 to 12-31-2034 01-01-2035 to 12-31-2043
TP002 TP FOR WELL 4 SOC CDS SOC REGULATED 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP002 TP FOR WELL 4 VOC1 CDS VOC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP004 TP PLANT WELL 3 ARSE CDS ARSENIC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP004 TP PLANT WELL 3 NITR CDS NITRATE NITRITE 1 RT YR Monitoring Completed 01-01-2027 to 12-31-2027
TP004 TP PLANT WELL 3 INO1 CDS P2-5 INORGANICS 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP004 TP PLANT WELL 3 GRAL CDS RAD GROSS ALPHA 1 RT 6Y 01-01-2023 to 12-31-2028 01-01-2029 to 12-31-2034
TP004 TP PLANT WELL 3 COMB CDS RADIUMS COMBINED 1 RT 9Y 01-01-2026 to 12-31-2034 01-01-2035 to 12-31-2043
TP004 TP PLANT WELL 3 SOC CDS SOC REGULATED 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
TP004 TP PLANT WELL 3 VOC1 CDS VOC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
Total Number of Schedules Displayed = 28

Non-TCR Individual Schedules

Water System Facility State Asgn ID Water System Facility Name Analyte Code Analyte Name Sample Count Sample Type Sample Frequency Current Monitoring Period Date Range Next Monitoring Period Date Range
Total Number of Schedules Displayed = 0

Compliance Schedule

Activity Name Activity Due Date Activity Projected Date Activity Achieved Date Activity Reported Date
LCR NOTICE OF LEAD RESULTS TO CONSUMER 2009-09-13
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 1) 2020-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 2) 2021-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 3) 2022-12-31
SUBMIT ACCEPTABLE CCR 2026-06-30
SUBMIT ACCEPTABLE CERTIFICATION 2026-09-30
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 7) 2026-12-31
INITIAL MONITORING FOR PFOS (2805) 2027-04-26 04-26-2027
INITIAL MONITORING FOR PFOA (2806) 2027-04-26 04-26-2027
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 8) 2027-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 9) 2028-12-31
WAIVER (STEP 3) : SWP RECCOMENDATION
Total Number of Compliance Schedules Displayed = 12

Disclaimer
 If the Current Monitoring Period Date Range reads “Monitoring Completed”, sufficient samples have been collected from the specified water system facility (WSF). If the Current Monitoring Period Date Range reads “Monitoring Partially Completed”, sufficient samples have been collected for some but not all the analytes in the group. A monitoring violation may occur if samples were not collected from the appropriate sampling point, were not analyzed by a certified laboratory, or were not reported on time. Total Coliform Rule (TCR), triggered, confirmation or repeat schedules or schedules with a daily or weekly frequency will not display this message.


The Current Date and Time is: Sun Mar 01 13:38:59 MST 2026