OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00466
PWS Name: LANGLOIS WATER DISTRICT
 
Who Was Contacted and Phone: Dave Terrusa (541) 348-2142
Contact Date: 02/13/2008
Contacted By: STRASSNER, BOB (DWP)
Contact Method/Location: Field
 
Assistance Type: CIRCUIT RIDER ASSISTANCE
Reasons: N/A
N/A
 
Details: SUMMARY: Long Term II Disinfection ByProduct Rule Assistance DETAILS: System requested circuit rider assistance for preparation of the Standard Monitoring Plan (SMP) for compliance with Stage 2 DBPR. The SMP is due 4/1/08.I met with Dave on 2/13 and briefly reviewed pervious DBP results, chlorine residuals records, distribution map and current sampling sites. The SMP requires the identification of new DBP sample sites based on a combination of records, piping layouts, previously submitted DBP results and calculations. The new sites must them be justified in writing and submitted to the USEPA in the form of a SMP. I created a working distribution map, carefully reviewed chlorine results, Stage 1 DBP results and collection locations and calculated average residence time and average chlorine residual results. I asked Dave to allow me a final review before the plan is sent to the EPA. ACTION NEEDED: Review final report prior to submittal to review and verify sites, as well as the schedule for the sampling to begin in 2009.