OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details
PWS ID: OR41 01449
PWS Name: MARSHLAND WATER ASSOCIATION
 
Who Was Contacted and Phone: Micah Olson (971) 563-3128
Contact Date: 11/28/2016
Contacted By: NUSRALA, JAMES (REGION 1)
Contact Method/Location: Office
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: Disinfection Byproducts
Operations
 
Details: SUMMARY: Follow up to HAA5 MCL exceedence DETAILS: Spoke to Micah today about HAA5 level in November of 0.0817 mg/L that caused the running average of HAA5 levels over the past 4 quarters to be 0.061 mg/L, which exceeds the Maximum Contaminant Level of 0.060 mg/L for HAA5s. TTHM level from November also exceeded the MCL of 0.080 mg/L, but average of 4 quarters is still below. Since MCL exceeded for HAA5, public notice to all users within 30 days is requried and treatment or distribution system modifications will be necessary to bring levels of DBPs down. ACTION NEEDED: Association to distribute notice template, forwarded today, to all users within 30 days with a copy to the State. DWS will forward letter to system requiring treatment of system modifications to address levels over the MCL.
 
Associated Alerts: CHEM7429 - 11/28/2016 - TOTAL HALOACETIC ACIDS (HAA5) , TTHM

CHEM7429 - 11/28/2016 - TOTAL HALOACETIC ACIDS (HAA5) , TTHM


More information for this water system: SDWIS ID 4016
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