OHA Drinking Water Services
OR41
PWS ID: 00492 ---- LOWELL, CITY OF

See also: Coliform Schedules  ::  LT2 Schedules

Chemical Sampling Schedule Status
Facility
ID		 Analyte or Group   Sampling
Interval		 Monitoring Period Days
Until
End		 Samples
Required		 Samples
Received		 Last
Sample
Date
Start End
CH-B  COMMON HEADER FOR WTP-B TOC & ALKALINITY  Quarterly 01/01/2026 - 03/31/2026 63 1 incomplete09/17/2025
DIST-A  Distribution System ASBESTOS, DIST  9 Years 01/01/2023 - 12/31/2031 2,164 1 incomplete10/24/2022
DIST-A  Distribution System DBP2 HAA5 ONLY notesYearly 01/01/2026 - 12/31/2026 338 1 incomplete12/18/2024
 Seasonal sampling period:  12/01  thru  12/31
DIST-A  Distribution System DBP2 TTHM ONLY notesYearly 01/01/2026 - 12/31/2026 338 1 incomplete10/08/2025
 Seasonal sampling period:  10/01  thru  10/31
DIST-A  Distribution System LEAD & COPPER notesYearly 01/01/2026 - 12/31/2026 338 10 incomplete10/17/2025
 Seasonal sampling period:  06/01  thru  09/30
EP-B  EP FOR DEXTER LAKE ARSENIC  9 Years01/01/2020 - 12/31/2028 1,069 1 done 09/21/2022
EP-B  EP FOR DEXTER LAKE IOC notes9 Years 01/01/2023 - 12/31/2031 2,164 1 incomplete09/21/2022
EP-B  EP FOR DEXTER LAKE NITRATE  Yearly 01/01/2026 - 12/31/2026 338 1 incomplete10/08/2025
EP-B  EP FOR DEXTER LAKE NITRITE notes9 Years 01/01/2023 - 12/31/2031 2,164 1 incomplete09/21/2022
EP-B  EP FOR DEXTER LAKE RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,260 1 incomplete10/19/2016
EP-B  EP FOR DEXTER LAKE RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,164 1 incomplete09/07/2022
EP-B  EP FOR DEXTER LAKE RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,260 1 incomplete10/19/2016
EP-B  EP FOR DEXTER LAKE SOC  3 Years 01/01/2026 - 12/31/2028 1,069 1 incomplete10/08/2025
EP-B  EP FOR DEXTER LAKE VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 338 1 incomplete10/08/2025
SRC-BA  DEXTER LAKE CYANOTOXINS  2 Weeks-- -- -- -- --10/27/2025
 Seasonal sampling period:  05/01  thru  10/31
WTP-B  TP FOR DEXTER LAKETOTAL ORGANIC CARBON Quarterly01/01/2026 - 03/31/2026 63 1 incomplete 09/17/2025

6  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
CH-B  COMMON HEADER FOR WTP-BTOC & ALKALINITY  Monthly01/01/200412/31/20041Raw and filtered TOC and alkalinity
DIST-A  Distribution SystemHAA5 & TTHM  Quarterly01/01/200412/31/20041Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/200512/31/20051Sample between june 1 and September 30
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/200609/30/20131Sample between June 1 and Sept. 30.
DIST-A  Distribution SystemLEAD & COPPER  3 Years01/01/200212/31/202410Sample Between June 1st and Sept 30th
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/202512/31/202520
DIST-A  Distribution SystemSTAGE 2 DBP  Quarterly10/01/201312/31/20141Sample During Peak Historical Month and Every 90 days Before/After
EP-B  EP FOR DEXTER LAKEARSENIC  3 Years12/08/200912/31/20101
EP-B  EP FOR DEXTER LAKEARSENIC  Yearly01/01/200212/07/20091
EP-B  EP FOR DEXTER LAKEIOC  Yearly01/01/200212/31/20041
EP-B  EP FOR DEXTER LAKENITRITE  3 Years01/01/200212/31/20041
EP-B  EP FOR DEXTER LAKERAD - RADIUM 226/228  6 Years01/01/200812/31/20131
WTP-B  TP FOR DEXTER LAKETOTAL ORGANIC CARBON  Monthly01/01/200412/31/20041Post Filtration TOC

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More information for this water system: SDWIS ID 3353
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