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OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 93701 | ||
| PWS Name: | STAFFORD ELEMENTARY | ||
| Who Was Contacted: | Steven mathias | ||
| Contact Phone: | 503-341-1794 | ||
| Contact Date: | 01/14/2019 | ||
| Contacted By: | CIVIL WEST ENGINEERS, INC (DWP) | ||
| Contact Method/Location: | Phone | ||
| Assistance Type: | CIRCUIT RIDER ASSISTANCE | ||
| Details: | Stafford Elementary School wishes to decommission their chlorination system and run only UV for disinfection. The system also wished to build in redundancy to the new UV system. Dan Vaage visited the system on January 17th, 2019. Discussed objectives with the operator, and later made calculations and recommendations for sizing new UV equipment. The existing well pump in has a rated maximum flowrate of 75 GPM. The selected UV device needs to be rated for at least 75 GPM. On the attached list of OHA/DWS approved reactors, the Trojan Brand UVSwift SC B03 meets this requirement at a max flowrate of 132 GPM. Since the system plans on redundancy, they should install two units. |
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