Planning Commission Agenda and Packet 2022 09 22

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Planning Commission Meeting Minutes September 08, 2022 Page 9 of 13 Moline asks if he can clarify the grading plan and the 250,000 excess of soil. Hardy says we do not anticipate any trucking offsite for that soil. At the PUD level, we will get more specific on the amount, but that 250,000 will be staying on site. Moline asks how they would respond about the public comments saying they are over grading the site. Hardy says when you look at the over lot grading program in the open space areas, the grading taking place has to be done for roads, drainage. We are not cutting and filing just to do it. The central area is the majority of the cut/fill area. Howe asks if there is a possibility in maintain topography in the northern area of open space without grading. Tim Sayler, an engineer with Harris Kocher Smith, says the main grading done just north of Campus Drive in the buffer area is done for the drainage channel. As it goes up, around the small pond, we are not touching that. On the other side of that, there is grading to ensure the water will be draining to the east. Grading continues to the west from that pond that we are not disturbing. Howe says if we assumed that Campus Drive was not there, could you leave that area ungraded and still complete your construction. Sayler says no, because we would not be complying with the current drainage standards. Krantz asks the difference between the two runoff coefficients. Sayler says there are different runoff coefficients for parking lots and open space. He does not have the composite runoff coefficient for the entire site and that it is difficult to determine without knowing what will be built on the site. The runoff coefficient today is very low because it is just dirt. Development increases that though. Krantz asks if that runoff will be going off the site. Sayler says everything must be detained on site. Diehl says in terms of the sustainability plan, how does that get memorialized in the process. Zuccaro says there will be a subdivision improvement agreement (SIA). He says the commission can require a sustainability plan in the subdivision agreement. Diehl asks if that has been drafted yet. Zuccaro says it has not but it will be drafted before it goes to City Council. Howe asks if they can speak more on the habitat management plan. Hardy says we went through the entire development and went through the items most important. That involved the trees and animals. The details of that plan will come out at City Council through the SIA. Krantz asks if we are allowed to make conditions on the previous habitat management plan. Zuccaro says if the commission has reviewed and relied upon that for decision making, the commission should request that document to be put into the official record. Howe asks if they can think of any way to improve the roadway from Campus Drive to 96t" St. Hardy says we cannot take it all the way up to the north because of the Boulder County setback. The plan was reviewed by city staff, Boulder Valley School District, traffic engineers, and the fire department and was concluded that this was the best route. Krantz asks how they define life sciences and biotech. What kind of manufacturing does that include? Hardy says those types of spaces usually end up being predominantly office buildings but within those offices, they will have labs. That is one end of it. The other end would 11