Maintain Your Site
Overview: This page emphasizes the importance of your maintenance staff in maintaining effective low impact development practices.
LID Checklist (pdf, xls): The LID Checklist includes over 250 best practices that might be employed during all project phases. A matrix of the practice against a column of different considerations makes it easy to see which practices are applicable with a Y, N, or M (yes, no or maybe, it depends on the implementation).
Seattle Maintenance Manual (pdf): This links to Seattle Public Utilities “Natural Drainage System (NDS) Maintenance Manual”, which defines levels of service for green infrastructure practices with pictures and clear descriptions for maintenance needed for inlets, outlets, vegetation, soils, check dams, etc.
Salmon Safe High Risk Pesticide List (pdf): This list of pesticides have been identified by various regional experts as being a “serious threat to salmon and other aquatic life”. Pesticides inside stormwater facilities should be avoided anyway, but for areas that drain to stormwater facilities and streams, if pesticides must be used, avoid ones that are on this list.
Field Guide: Maintaining Rain Gardens, Swales, and Stormwater Planters (pdf): Developed and reviewed by a wide variety of practitioners, this maintenance guide was developed to serve as a field guide for contractors and maintenance staff.
Stormwater Facility Operations & Maintenance Best Practices Manual (pdf): This is a more detailed version of the Field Guide above.
Maintaining Stormwater Facilities Presentation: This links to powerpoint files containing the Maintenance of Rain Gardens, Swales, and Stormwater Planters presentation for the Oregon Landscape Contractors Association Expo in Portland, Oregon on December 1, 2011.