OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 95068 | ||
| PWS Name: | SUNNY WOLF CHARTER PRESCHOOL | ||
| Who Was Contacted: | Sara Gray | ||
| Contact Phone: | 541-866-2735 | ||
| Contact Date: | 11/04/2021 | ||
| Contacted By: | CIVIL WEST ENGINEERS, INC (DWP) | ||
| Contact Method/Location: | Phone | ||
| Assistance Type: | CIRCUIT RIDER ASSISTANCE | ||
| Details: | Background/Problem Identification: Zach Golik, from OHA, requested that a 4-log disinfection verification be calculated for Sunny Wolf Charter Preschool. Assistance Provided: Civil West worked with Sara Gray of Sunny Wolf Charter Preschool to complete the 4-log Disinfection Verification worksheet. Based on the available information and previous site visits, we determined that required CT of the system is 6, and the available CT of the system is 7, and as such the minimum free chlorine residual is 1.03 mg/L. We recommend that the system conservatively target a minimum free chlorine residual at first user of 1.2 mg/L to provide some insurance against possible fluctuations in the system. Follow-Up Actions Needed: None at this time. Technical Reports to be Prepared and Expected Timeframe: Please see the attached 4-log Disinfection Verification worksheet. |
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