OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00262
PWS Name: DUNDEE, CITY OF
 
Who Was Contacted and Phone: Alan Mustain (503) 538-3922 ext. 5
Contact Date: 01/21/2016
Contacted By: HOFELD, EVAN (REGION 1)
Contact Method/Location: Letter
 
Assistance Type: OTHER REGULATORY - REGULATORY ASSISTANCE
Reasons: Lead or Copper
Disinfection Byproducts
 
Details: SUMMARY: Sampling Schedule Changes due to Population, DBP reduction, and Well #11 (SRC-AE) DETAILS: I wrote a letter to the Alan Mustain with the City of Dundee to outline monitoring changes due to an increase in population to 3,356, which requires 4 monthly coliform samples, 20 lead and copper tap samples, and 2 SOC samples taken in consecutive quarters every 3 years. A DBP reduction was also granted to now require a single dual sample set (1 sample analyzed for both TTHM and HAA5) at 1 site (2DBP-02 at 23310 Fulquartz) in December each year. The letter also outlined additional water quality parameter (WQP) sampling prior to putting the new well #11 into service to evaluate corrosion potential. The letter then outlined increased lead and copper tap sampling from 40 sites in two consecutive 6-month rounds of sampling, additional WQP sampling, two more consecutive quarterly samples of radium 226/228 taken at EP-A, and annual VOC/SOC sampling at EP-A once the new well #11 is placed into service. ACTION NEEDED: City to follow sampling instructions in January 21, 2016 letter, summarized in the details above.


More information for this water system: SDWIS ID 4136
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