3.10. SR 04-04-2005
*Item 3.10.*
MEMORANDUM
TO: Mayor and City Council
FROM: Bill Maertz, Director of Parks and Recreation
DATE: April 4, 2005
SUBJECT: Rain Garden at Orono Park
Backiround
Parks and Recreation staff has been collaborating with staff of the Sherburne Soil and Water
Conservation District to develop a rain garden project at Orono Park. This type of
innovative storm water management will be an important part of improving water quality in
the watershed of the Elk River.
Summary
14.7 acres of land drain into Lake Orono through Orono Park. The runoff from the
impervious surface carries automobile byproducts, goose droppings and sediment.
Constructing a rain garden and a filter strip will treat the runoff from13.8 acres. Additional
measures will be studied to treat the remaining area.
The total cost of this project is $16,262. The Sherburne Soil and Water conservation district
will pay $12,197 (75%). The city of Elk River's share would be $4,066 (25%). The City of
Elk River can substitute in-kind labor worth $2,969, leaving a balance of $1,097.
Staff has reviewed the approved master plan and this project does not conflict with the
improvements scheduled for 2009.
Action Requested
Authorize staff to enter into a agreement with the Sherburne Soil and Water Conservation
District to construct a demonstration rain garden and filter strip at Orono Park.
Attachments
. Site Plan
100
,
o
100
200 Feet
Lake Orono Park
Stormwater B M Ps
Map Produced by Sherburne SWCD
January 10, 2005
Software: ArcView 33
N
South drainage area 3.0 acres
south impervious area 0.7 acres
north 4acres
north 2 .7 acres
east impervious area 0.9 acres
rain garden
proposed filter strip