Stormwater Development Standards. Maintenance Issues

New Search

MEMORANDUM TO: Eugene Stormwater Management DAC FROM: Basin Planning Project Team SUBJECT: Maintenance Strategy and Implications DATE: December 7, 1999 Currently, the City of Eugene's maintenance staff are responsible for maintaining the public storm drainage system and any public stormwater facilities within the City. The City's current practice is not to maintain private stormwater facilities. If adopted, the water quality development standard will result in construction of additional stormwater facilities. In this memo we describe our recommendations for modifying the City's practice with regards to maintenance responsibilities for water quality facilities, and the associated implications to maintenance costs and staffing levels. This memo: recommends a maintenance strategy for the proposed water quality development standard; presents estimated implications to maintenance costs and staffing; outlines implications associated with City maintenance responsibilities; outlines implications associated with private maintenance responsibilities and optional public roles in assuring this maintenance is conducted; and presents a comparison to other communities. Recommended Maintenance Strategy The recommended maintenance strategy to implement the recommended water quality development standard is as follows. • o The City will maintain: Approved water quality facilities that are constructed to serve multiple-parcel low-density residential ("LDR") developments, including: • swales • vegetated filter strips • ponds • constructed marshes/wetlands • dry wells • infiltration trenches • infiltration basins 4 • appropriate structural devices for filtering, and • appropriate structural devices for settling. The City will conduct inspections, sediment removal, re-grading, and cleaning of inlets/outlets. The private entity will be responsible for maintaining vegetation and picking up litter and debris. I:\945042ne\task0400\memo8\Stormwater Policy Team Meeting.doc 1