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and fallen trees (see site pictures at end of memorandum). Based on this determination, the lateral
<br /> recession rate was estimated to be 0.3 ft/yr, which is on the low end of the `severe' range (0.3 - 0.5
<br /> ft/yr). Assuming sandy soils, the estimated soil loss from this 350' stretch of bank with an average 2'
<br /> eroding face is approximately 11.6 tons per year. This results in an estimated 9.82 pounds of total
<br /> phosphorus contributed to Centerville Lake and downstream waterbodies annually. Stabilization of the
<br /> bank will result in 100 percent reductions in these estimated pollutant loads.
<br /> ELIGIBLE EXPENSES AND REQUESTED FUNDING
<br /> The grant request outlined in this section is based on the lowest of six quotes solicited from contractors
<br /> by the City of Centerville. The low bidder column, Shoreline Landscaping, is shaded gray. See
<br /> attached cost estimates for additional detail.
<br /> Summary of Quotes Received
<br /> ORIGINAL QUOTE FORM
<br /> Contractor
<br /> Shoreline dreamscapes MinnesotaNative Outdoor Lab All Season Cold Stone
<br /> Item Quantity Unit Landscaping Landscape Landscapeslnc. Landscape Services,Inc. Shorelines
<br /> Mobilization 1 LS $ 1,500.00 $ $ 2,750.00 $ 1,000.00 $ 400.00 $ 1,000.00
<br /> Traffic control-bituminous walking trail and street
<br /> if applicable 1 LS $ 700.00', $ $ 1,500.00 $ 350.00 $ 600.00 $ 850.00
<br /> Class III riprap(9"-18"diameter,as specified in
<br /> MNDOT 3601)traprock 115 CY $ 10,350.00 $ 18,739.25 $ 17,250.00 $ 21,275.00 $ 23,000.00 $46,460.00
<br /> 12.5 ft wide Type IV Non-Woven Geotextile Fabric
<br /> (Propex Geotex 801,or equivalent) 405 LF $ 810.00', $ 1,773.90 $ 3,240.00 $ 2,025.00 $ 2,025.00 $ 1,996.65
<br /> Site restoration 1 LS $ 2,250.00' $ 3,801.26 $ 500.00 $ 2,000.00 $ 2,800.00 $ 1,750.00
<br /> Live,dormant willow stakes 125 EACH $ 1,000.00 $ 1,238.75 $ 1,500.00 $ 750.00 $ 536.25 $ 6,250.00
<br /> 4"pots(Diervillo lonicera) 74 EACH $ 740.00 $ 620.86 $ 518.00 $ 888.00 $ 506.90 $ 3,700.00
<br /> 1"plugs(Anemone Canadensis,Carex vulpinoidea,
<br /> Echinaccea purpurea,Rudbeckia hirta) 540 EACH $ 1,620.00', $ 2,673.00 $ 1,620.00 $ 1,080.00 $ 1,798.20 $ 1,350.00
<br /> PROJECT TOTAL $ 18,970.00' $ 28,847.02 $ 28,878.00 $ 29,368.00 $ 31,666.35 $ 63,356.65
<br /> ALTERNATIVES
<br /> Contractor
<br /> Shoreline Dreamscapes Minnesota Native 'Outdoor Lab All Season Cold Stone
<br /> Item Quantity, Unit Landscaping Landscape Landscapes Inc. landscape Services,Inc. Shorelines
<br /> Class III riprap(9"-18"diameter,as specified in
<br /> MNDOT 3601)fieldstone(river rock) 115 CY $ 13,800.00 $ 23,776.25 N/A N/A N/A N/A
<br /> PROJECT TOTAL $ 22,420.00', $ 33,884.02 N/A N/A N/A N/A
<br /> RCWD Water Quality Grant Program Summary
<br /> Max RCWD Grant Landowner RCWD Grant
<br /> Contractor Total Quote Amount(50°%) Responsibility(50%)' Amount Recommended
<br /> Shoreline Landscaping $ 22,420.00 $ 11,210.00 $ 11,210.00 $ 11,210.00
<br /> STAFF NOTES
<br /> While the grant request amount exceeds the standard maximum funding for the RCWD Water Quality
<br /> Grant Program, this project spans 350 linear feet, which represents approximately 3.5 standard
<br /> properties (100 linear feet).
<br /> The alternative of using fieldstone (river rock) is more expensive than trap rock, but it will be more
<br /> natural looking along the shoreline. Therefore, it is recommended.
<br /> The City of Centerville is excited and highly motivated to complete this project. They are proactive and
<br /> eager to improve water quality and stabilize the bank.
<br /> RECOMMENDATION
<br /> Approve Water Quality Grant Program application for cost-share up to $11,210.00.
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