OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details
PWS ID: OR41 00789
PWS Name: SANDY, CITY OF
 
Who Was Contacted: Yvonne Mazza-Lappi
Contact Phone: 303-981-3577 (Email address hidden)
Contact Date: 11/01/2018
Contacted By: FARRELLY, PETER (DWP)
Contact Method/Location: Phone
 
Assistance Type: INCIDENT RESPONSE
Reasons: SWTR
 
Details: On Thursday DWS was notified of two short events of not meeting CTs on the afternoons of Oct. 29th and Oct 30th for 15 minutes and 45 minutes, respectively.

Since the residual was never zero, and the times out of compliance so short, and since some CT was provided, it appears that this does not trigger a violation. The public health threat appears negligible according to the data provided.

Pete is still reviewing the data with Jacobs, Sandy's contractor at the Alder Creek WTP.

Action Required:
  • A fuller account of the event from Jacobs
  • A better determination of how the events happened
  • A plan for how this can be prevented in the future
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