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A Seattle manual summarizing both routine and non-routine maintenance activities for Natural Drainage System projects.

Seattle Public Utilities

2009

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The manual is divided into four service levels for the vegetation section. This document is intended to be a Maintenance Manual for scheduling and performing maintenance activities. The manual features images and descriptions for vegetation, hardscape, infrastructure, and infiltration rates. It includes NDS sites used currently in Seattle and several images from NDS projects in other municipalities.

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