Field Test of BMPs Using Granulated Ferric Oxide Media to Remove Dissolved Metals in Roadway Stormwater Runoff (2019) / Chapter Skim
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65 Chapter 6 Cost-Benefit Analysis The design and function of ferric oxide-sand filters evaluated in this study are largely the same as traditional sand filters designed for stormwater runoff treatment. As such, planning level life cycle costs of proposed ferric oxide-sand filters can be readily estimated using the life cycle costing tool provided as part of NCHRP 792.
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From page 66... ...
66 Table 6-1 Highway 36/61 site and tributary watershed parameter inputs to the NCHRP 792 sand filter evaluation tool. Variables and Project Location Assumptions Value Units Source Location Maplewood, MN (1)
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From page 67... ...
67 Capital and operations and maintenance costs can be generated by the Tool or if site-specific capital and operation and maintenance costs are known they can be used as user defined inputs. As an example, project-specific capital costs (for the Highway 36/61 ferric oxide filer)
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From page 68... ...
68 Table 6-4 Highway 36/61 life cycle cost analysis assumptions and inputs to the NCHRP 792 sand filter evaluation tool. Variables NCHRP Tool Inputs Value Units Source Cost Inputs Location Adjustment Factor Y 100 Minnesota factor per RS Means (105)
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69 Table 6-5 Highway 36/61 ferric oxide-sand whole life cycle cost estimate analysis. Constituent Condition1 Loading (lb yr-1)
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