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Sample and Compliance Schedules

Water System No. : MT0001745 Federal Type : C
Water System Name : TWIN ACRES TRAILER COURT State Type : C
Principal County Served : FLATHEAD 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
1 RT MN 07-01-2001 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
Total Number of Schedules Displayed = 0

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 PBCU CDS LEAD COPPER ONLY 5 RT 6M 01-01-2026 to 06-30-2026 -----
DS001 DISTRIBUTION SYSTEM PBCU CDS LEAD COPPER ONLY 5 RT 3Y No Monitoring in Current Period No Monitoring After 12-31-2025
DS001 DISTRIBUTION SYSTEM PBWQ CDS LEAD COPPER WQP2 2 RT 6M 01-01-2026 to 06-30-2026 -----
WL002 WELL 1 1977 GWIC 82474 ARSE CDS ARSENIC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
WL002 WELL 1 1977 GWIC 82474 PBCU CDS LEAD COPPER ONLY 1 RT 3Y 01-01-2025 to 12-31-2027 01-01-2028 to 12-31-2030
WL002 WELL 1 1977 GWIC 82474 PBWQ CDS LEAD COPPER WQP2 2 RT 6M 01-01-2026 to 06-30-2026 -----
WL002 WELL 1 1977 GWIC 82474 NITR CDS NITRATE NITRITE 1 RT YR 01-01-2026 to 12-31-2026 01-01-2027 to 12-31-2027
WL002 WELL 1 1977 GWIC 82474 INO2 CDS P5 INORGANICS 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
WL002 WELL 1 1977 GWIC 82474 GRAL CDS RAD GROSS ALPHA 1 RT 9Y 01-01-2026 to 12-31-2034 ----
WL002 WELL 1 1977 GWIC 82474 COMB CDS RADIUMS COMBINED 1 RT 9Y 01-01-2026 to 12-31-2034 ----
WL002 WELL 1 1977 GWIC 82474 SOC CDS SOC REGULATED 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
WL002 WELL 1 1977 GWIC 82474 VOC1 CDS VOC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
WL002 WELL 1 1977 GWIC 82474 INO4 CDS W P-2 INORGANICS 1 RT 9Y Monitoring Completed 01-01-2029 to 12-31-2037
WL002 WELL 1 1977 GWIC 82474 TCDD DIOXIN(2,3,7,8-TCDD) 1 RT 9Y Monitoring Completed 01-01-2029 to 12-31-2037
WL002 WELL 1 1977 GWIC 82474 SWW STATE WIDE WAIVERS 1 RT 9Y Monitoring Completed 01-01-2029 to 12-31-2037
WL003 WELL 2 N 1968 GWIC 82479 ARSE CDS ARSENIC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
WL003 WELL 2 N 1968 GWIC 82479 PBCU CDS LEAD COPPER ONLY 1 RT 3Y 01-01-2025 to 12-31-2027 01-01-2028 to 12-31-2030
WL003 WELL 2 N 1968 GWIC 82479 PBWQ CDS LEAD COPPER WQP2 2 RT 6M 01-01-2026 to 06-30-2026 -----
WL003 WELL 2 N 1968 GWIC 82479 NITR CDS NITRATE NITRITE 1 RT YR 01-01-2026 to 12-31-2026 01-01-2027 to 12-31-2027
WL003 WELL 2 N 1968 GWIC 82479 INO2 CDS P5 INORGANICS 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
WL003 WELL 2 N 1968 GWIC 82479 GRAL CDS RAD GROSS ALPHA 1 RT 9Y 01-01-2026 to 12-31-2034 ----
WL003 WELL 2 N 1968 GWIC 82479 COMB CDS RADIUMS COMBINED 1 RT 9Y 01-01-2026 to 12-31-2034 ----
WL003 WELL 2 N 1968 GWIC 82479 SOC CDS SOC REGULATED 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
WL003 WELL 2 N 1968 GWIC 82479 VOC1 CDS VOC 1 RT 3Y 01-01-2026 to 12-31-2028 01-01-2029 to 12-31-2031
WL003 WELL 2 N 1968 GWIC 82479 INO4 CDS W P-2 INORGANICS 1 RT 9Y Monitoring Completed 01-01-2029 to 12-31-2037
Total Number of Schedules Displayed = 26

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
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 1) 2020-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 1) 2020-12-31
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 2) 2021-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 2) 2021-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 3) 2022-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 3) 2022-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 3) 2022-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 4) 2023-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 4) 2023-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 4) 2023-12-31
SUBMIT LCN CERTIFICATE 2025-12-29 12-29-2025 12-22-2025
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 6) 2025-12-31 06-27-2025
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 6) 2025-12-31 06-27-2025
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 6) 2025-12-31 06-27-2025
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 7) 2026-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 7) 2026-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 7) 2026-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 8) 2027-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 8) 2027-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 8) 2027-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 9) 2028-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 9) 2028-12-31
WAIVER (STEP 5) : PUBLIC NOTICE (YEAR 9) 2028-12-31
WAIVER (STEP 3) : SWP RECCOMENDATION
WAIVER (STEP 3) : SWP RECCOMENDATION
WAIVER (STEP 2) : ELIGIBILITY REVIEW 03-28-2022
WAIVER (STEP 2) : ELIGIBILITY REVIEW 03-28-2022
WAIVER (STEP 3) : SWP RECCOMENDATION
WAIVER (STEP 4) : PWS DECISION 03-28-2022
WAIVER (STEP 4) : PWS DECISION 03-28-2022
Total Number of Compliance Schedules Displayed = 32

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: Wed Jan 07 01:41:35 MST 2026