01/22/2002 - Laserfiche WebLink

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• The definition of a specimen tree as a native tree with a dbh of greater than 24 inches was too broad and included to many trees. The definition of a Specimen Tree was changed to read 'any native tree with a dbh of greater than 30 inches.' • Within the definition of a Specimen Tree there was a requirement that the tree have "no major insect problem". There was concern that this was too broad, or was not clearly defined. A Condition Rating was added that not only clearly defines the condition of the tree, but also, in conjunction with other information, defines the size of the CRZ • It is unclear if a tree removal or land clearing permit is required for single-family home use within agriculture zoning districts. Language was added that states that a land clearing or tree removal permit is required for single-family use in agi iculture zoning districts, provided the parceUlot is greater than one acre. • There were concerns about overly regulating the removal of non-native plants (i.e., requiring land clearing and/or tree removal permits). A statement was added that the removal of non-native plants by cutting them down, not removal via or with the root, is exempt; however, removal must be accompanied by treatment of the stumps using an EPA approved herbicide. • There were concerns about the size of the CRZ, especially as it may relate to the species of tree, the age, and/or condition. The CRZ, was refined by using species of the tree, Condition Rating of the tree, response to impact, and age of the tree. This results in a range of values from 0.5 to 1.5 feet per inch of dbh. • There were comments that the saved trees might be able to withstand some impacts within the CRZ. Impacts can be allowed within CRZ for protected trees (1/2 of CRZ may be impacted for protected trees; no impacts within CRZ for specimen trees). This issue was later modified by the PSAC subcommittee by adding details on acceptable impacts that can occur within the CRZ, to within one (1) foot of the trunk of the tree (either protected or specimen tree). Generally, these are restricted to pavement impacts. As a result of the changes noted above, tree protection has been enhanced. Specimen trees represent only the largest of trees, generally those in need of more protection. 1 he CRZ is now more representative of actual conditions (i.e., species, age, condition, and impact response). Removal of non-native trees, by cutting down, is now encouraged because the removal is exempt from the need for a per mit. Summary of issues raised at PSAC subcommittee The following is a list of issues raised at the PSAC subcommittee meetings (bold items are issues raised by the PSAC subcommittee; the information following the issue is staffs response): • Use of sampling methods on smaller lots/parcels. Sampling methods can be used on sites that are greater than '/4 of an acre, instead of the original one acre size. This issue has been addressed, as noted above, in the current draft. JANUARY 22, 2002 -30- 5