OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00394 | ||
| PWS Name: | IDANHA CITY WATER | ||
| Who Was Contacted and Phone: | Greg Benthin | ||
| Contact Date: | 02/05/2014 | ||
| Contacted By: | MACPHERSON, JAMES (REGION 2) | ||
| Contact Method/Location: | Office | ||
| Assistance Type: | SURVEY/DEFICIENCY FOLLOW-UP | ||
| Reasons: | SWTR None |
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| Details: | SUMMARY: CT calc given backwash flows DETAILS: How should CT be calculated before the next tracer study? The last survey noted the tracer study was based on maximum demand (250 gpm), but that backwash creates a flow of 600 gpm. Thus, a new tracer study should be conducted while backwash is occurring. Until that time, Idanha should use the current contact time base on the last tracer study. Idanha has asked HBH for support in conducting a tracer study. ACTION NEEDED: none | ||