OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00205 | ||
| PWS Name: | COOS BAY NORTH BEND WTR BRD | ||
| Who Was Contacted: | Jeff Miller | ||
| Contact Phone: | 541-267-3128 (Email address hidden) | ||
| Contact Date: | 08/03/2023 | ||
| Contacted By: | DOWNS, KENT (DWP) | ||
| Contact Method/Location: | |||
| Assistance Type: | MONITORING | ||
| Reasons: | SWTR Operations |
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| Details: | Turbidimeter calibration 08.03.2023- Turbidimeters must be calibrated per manufacturer instructions, or at least quarterly. Jeff reported that the system has 9 turbidimeters. 3 of those turbidimeters are HACH 1720 E series that are calibrated in house. The other 6 turbidimeters are new HACH TU5300. There is a contract with HACH to service and calibrate the new units, but they missed calibrating the units during the 2nd quarter of this year. Jeff informed me that the calibration was completed today. Turbidity readings prior to calibration and after calibration didn't vary significantly. No further actions needed at this time. |
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