We support preserving Arlington’s urban forest and are concerned about the rapid loss of trees on public and private lands. The loss of 81 trees or more within the Donaldson Run Nature Area is very serious and deserves careful reconsideration. These irreplaceable mature trees are important to the environmental quality, energy efficiency, and psychological health of Arlington. 64% of Arlington residents surveyed by the County placed natural areas and trees as their highest priority use for public open spaces. The Donaldson Run Tributary B steam restoration project, costing taxpayers over $1 million, sacrifices broad local natural environmental benefits for a narrow distant storm water purpose. This project must be put on hold until a comprehensive technical and cost/benefit reviews can be completed that include better alternatives that use the money most effectively to meet all the community’s goals.