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Correspondence • City of Tigard, Oregon 13125 SW Hall Blvd. • Tigard, OR 97223 : 5 April 18, 2007 • i . Elite Care Bill Reed jet `' 2300 SW 103` Portland, OR 97225 RE: GRANT STREET ELI I E CARE — PLUMBING AND MECHANICAL Project Information Building Permit: PLM2006- 00425 &MEC2007 - 00204 Construction Type: V -A Tenant Name: Grant Street Elite Care Occupancy Type: SR -1 Address: 12353 SW Grant St. Occupant Load: 394 Area: 31,279 sq ft Stories: 3 1. Plans are required to be designed, stamped, and signed by Oregon licensed engineer. 2. R.P. device backflow protection is required immediately downstream of the water meter. 3. Backflow protection is required at any cross connections. 4. Please provide pipe sizing on the plans including service size. 5. Please provide a fixture /appliance legend to match plans. 6. Please clarify the cold water branch line shown immediately downstream of the City water supply. • 7. Please identify an air gap at the sump or provide backflow protection. 8. The Engineer of Record is required to submit regular interval inspection records and a final approval letter confirming that the system was installed and tested per The engineer's requirements. When submitting revised drawings or additional information, please attach a copy of the enclosed City of Tigard, Letter of Transmittal. The letter of transmittal assists the City of Tigard in tracking and processing the documents. Respectfully, `'John Williams, Plumbing Plans Examiner Phone: 503.639.4171 • Fax: 503.684.7297 • www.tigard- or.gov • TTY Relay: 503.684.2772 r . ZTec Engineers, Inc. Civil ♦ Structural ♦ Surveying 3737 SE 8 Ave. John McL. Middleton, P.E. Portland, OR 97202 Ronald B. Sellards, P.E Chris C. Fischborn, P.L.S. (503) 235 -8795 FAX: (503) 233 -7889 E -mail: john ©ztecengineers.com PAGE: 1 of 1 DATE: April 16, 2007 F L,L 'J' TO: City of Tigard 2001 in 1 FAX NO.: ailet Oil" r FROM: JOHN McL. MIDDLETON P.E. 'IIWI � Re: Elite Care SW Grant St Water re -use sytem Bill Reed gave me a copy of the flow plan for the storm water re -use system that he proposes to use in the Elite Care facility at SW Grant. The system has a number of components, identified in the flow chart, to achieve the goals of limiting the amount of public water and electric power required to operate the facility. These goals are consistent with an overall aim of achieving platinum LEED status for the development. The system being proposed is innovative but similar systems are becoming more common with the increasing interest in energy efficiency and water conservation in building design. The installation of all components should meet the requirements of the Uniform Plumbing Code with City inspection at normal junctures. The cross connection safeguards, backflow preventers in the rainwater re -use system and the air gap in the heat pump system, should be reviewed and approved by the City water department. I have not been involved in the design of this system, it is an area more generally covered under mechanical systems. I have reviewed the layout and the concept and components indicated appear to be consistent with other systems I have encountered. � I PR1 . -� I 'l ' m.0,`, ,4y, 1