OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details
PWS ID: OR41 06173
PWS Name: HILAND WC - JJ WATER
 
Who Was Contacted and Phone: Gary VanDerVeen (503) 434-7439
Contact Date: 02/17/2016
Contacted By: HOFELD, EVAN (REGION 1)
Contact Method/Location: Office
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: GWR
GWR
 
Details: SUMMARY: 4-LOG Treatment Confirmed DETAILS: System had E-coli detected in source sampling completed on 12/5/12 for Well #1 (SRC-AA - L38446) and Well #3 (SRC-AC - YAMH754). System was subsequently placed on a boil water notice due to confirmed E-coli in Well #1 only based on confirmation samples taken on 12/6/12. Both active sources (well 1 and 3 (well 2 was off-line)) were considered adequately constructed per OHA geologist Tom Pattee. System had been previously notifed that Well 2 was inadequately constructed and could pose a risk to the other wells if not properly abandoned - see contact report dated 12/17/12. Final Approval was granted for SRC-AA (Well #1 - L38446) and SRC-AC (Well #3 - YAMH754) on 11/20/13 under PR#195-2009 (SRC-AB (Well #2 - L45735) was inactive and not included in the approval). A 4-log viral disinfection treatment system was approved with a minimum chlorine residual at EP-A of 0.2 mg/l in the same Final Approval LTR dated 11/20/13 under PR#190-2012. System started GWR Compliance Monitoring 1/1/13. ACTION NEEDED: System to continue daily entry point monitoring at EP-A to demonstrate that 0.2 mg/l chlorine residual is being met for the 4-log viral inactivation treatment credit. System recommended to pursue formerly abandoning or reconstructing Well #2 due to inadequate construction and risk it poses to Wells #1 and #3.
 
Associated Alerts: COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

COLI11261 - 12/07/2012 - COLIFORM (TCR) , E. COLI

More information for this water system: SDWIS ID 5087
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