2a. Jail generator cooling tower

Item #2 The generators stack; The generator exhaust stack was installed during the construction of the original jail project, no modifications were considered or made to the stack during design or construction of the addition. The fresh air intake of the addition according to Dave Obermiller of ONE is found to meet the required separation from the existing stack but it doesn't mean there isn't a possibility of foul air getting into the intake under the ''wrong'' conditions. Wind speed and direction along with roof top irregularities, the mechanical items all have an impact on the stack exhaust and where the air comes from to the intakes. It is apparent now that these elements are having an impact on the stack exhausts ability to enter the intake of the new addition under certain circumstances or conditions. Dave Obermiller's site inspection and opinion concurs with that of Grant's Mechanical and that extending the stack should eliminate the problem that currently exists. ONE has agreed to work with Grant's or any other contractor you would choose to use and assist in the design and calculations rclating to the extension of the generator stack. Foss Architecture will provide assistance once again to coordinate the efforts on Cass County's behalf if you so choose. Due to my upcoming absence and in the essence of time, I ask that you contact Tom Dewald, our construction administrator if you would like our help regarding these two items. Tom has agreed to offer his available time within his schedule to acquire quick responses from the Engineers and work through Cass County with the contractors who are capable of making the necessary repairs. Tom will also assist in documenting the findings to evaluate the failure and provide solutions for your comment and direction. If you have further questions or comments I will respond as soon as possible prior to my departure or upon my return. Sincerely Foss Architecture & Interiors ~~ Rick HOll""'On~ Principal Encl. .....~....