Stormwater Management Standards Manual - Toledo Metropolitan ...

Suitable planting soils and water depths are essential for the establishment of viable plants. A grading
plan should be followed to create appropriate water depths. Since most basins are excavated to nutrient
poor sub soils, addition of topsoil and mulch will most likely be necessary. The soil should have
adequate texture and organic matter to retain the requisite moisture for plant growth.
The operator should monitor viability of plantings for two years to ensure establishment; reinforcement
and replacement plantings should be provided as needed.
A permanent buffer strip of vegetation extending at least 25 feet in width beyond the freeboard elevation
should be maintained or restored around the perimeter of all stormwater storage facilities. No lawn care
chemical applications should be applied to the buffer area, except to control noxious weeds or injurious
pests.
Additional Resources
Further details on stormwater wetland design may be obtained from other resources including:
Shueler, T.R., Design of Stormwater Wetland Systems: guidelines for creating diverse and
effective stormwater wetlands in the mid-Atlantic region. Metropolitan Washington Council of
Governments, 1992.
Mecklenburg, Dan, Rainwater and Land Development, Second Edition, Ohio Department of
Natural Resources, Division of Soil and Water Conservation, 1996.
Third Edition Stormwater Standards Manual September 2008 Page 91