OHA Drinking Water Services
OR41
PWS ID: 00944 ---- WEST LINN, CITY OF

See also: Coliform 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
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST  9 Years01/01/2020 - 12/31/2028 1,046 1 done 02/19/2020
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2027 - 12/31/2027   30 08/09/2024
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 01/01/2026 - 03/31/2026 40 4 incomplete08/04/2025

5  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  DISTRIBUTION SYSTEMASBESTOS, DIST  3 Years01/01/200812/31/20101Due to L/C AL exceedance. OAR 333-061-0036(2)(c)(C)
DIST-A  DISTRIBUTION SYSTEMASBESTOS, DIST  9 Years01/01/200212/31/20071Schedule Reflects Monitoring Reduction Granted
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200409/30/20134
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200207/31/200530Schedule Reflects OR City S. Fork WB Joint Monitoring Plan
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months02/01/200912/31/200960Schedule Reflects New Joint Monitoring Plan: Oregon City, West Linn & SFWB
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months07/01/200812/31/200860Schedule Reflects OR City S. Fork WB Joint Monitoring Plan
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months10/01/200506/30/200660Discontinued until implementation of new corrosion control program
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  Yearly01/01/201012/31/201230Schedule Reflects New Joint Monitoring Plan: Oregon City & West Linn, with SFWB. Sample between June 1 and Sept. 30.

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More information for this water system: SDWIS ID 4083

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