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Motion carried. Voting Yes: Acting Chairperson Max, Board Members Bentz, Freeburg, Hustvedt, Olds and Sibilski. Voting No: None. Absent: Chairperson McDilda POLICY BOARD BUSINESS Case #1: Finalize 2006 Work Plan Motion by Board Member Olds and seconded by Board Member Sibilski to table discussion of Case #1 until the next EPB meeting. Motion carried. Voting Yes: Acting Chairperson Max, Board Members Bentz, Freeburg, Hustvedt, Olds and Sibilski. Voting No: None. Absent: Chairperson McDilda Case I/2: Report from Subcommittees Acting Chairperson Max provided members with written objectives for the canopy cover as discussed by the subcommittee. He stated that the committee discussed increasing the number of plantings that were required. He noted there was nothing in the code prohibiting people from planting all one species. He stated that Zoning & Recycling Coordinator Chris Anderson could request more diversity of species, but he didn't have anything written that would allow him to require that. Acting Chairperson Max explained that the committee expressed interest in encouraging a use of faster growing trees to see faster results. He stated they wanted to do that without having an impact on the preferred species list. He stated that if possible, they wanted a more simplified formula. He stated the current formula takes the potential spread of the tree, minimum and maximum, averages them, and uses the pi*fi'2 to arrive at how much area is covered by a shadow. He stated it then applies a factor of .65 for a preferred species and .5 for an acceptable species. He noted that is used to say that none of these trees will last as long in a street environment as they would in the woods so that would be an impact. Acting Chairperson Max stated that the committee is proposing to only look at the minimal spread. He stated that given the conditions, it is not reasonable to expect a tree could ever get to its maximum size so look at the minimum and then let it go. He stated that knowing that the challenge of being in a difficult site is .5 for acceptable and .65 for preferred species, to alter that so it comes out to being a 1.00 for a preferred species and .7 for acceptable species. He noted that when that is calculated, it makes a difference of about 10% more trees. Acting Chairperson Max explained that the committee added a growth rate factor of 1.00 for fast growing species and .9 moderate, and .8 for slow growing species. He noted that has a very modest change to indicate what that is. He stated that he looked at a list of approximately 180 species. He noted that using that, the average is approximately 9% more plantings required. He stated with those changes, by only looking at the minimum, changing and adding a factor for growth rate, it would be within the range of what the committee was looking for. Environmental Policy Board/February 6, 2006 Page 2 of 10