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7.2. Equivalent New/Redevelopment Areas <br />The Equivalent New/Redevelopment Areas for the project are summarized in Appendix D. Ten <br />(10) of the biofiltration swales will achieve full stormwater treatment equivalent to a <br />new/redeveloped project and ten (10) of the biofiltration swales will achieve partial stormwater <br />treatment within their respective subbasins. <br />The overall water quality benefit to be realized within the study area is 31 percent. This is <br />quantified by comparing the total calculated Equivalent New/Redevelopment Areas, 46.6 acres, <br />to the Treatment Assessment Area, 152.0 acres. The water quality benefit can be further refined <br />with the advancement of each CIP. <br />8. Capital Improvement Plan <br />The BMPs are based on the preliminary design calculations. Multiple considerations should be <br />made for design implementation. Site investigations including topographic survey and <br />geotechnical evaluations should be conducted for effective design of each BMP. Public outreach <br />should be organized to gather input and support for project improvements. Final design should <br />include the consideration of sizing for snow storage, selection of site appropriate plantings for the <br />region, and access for operations and maintenance. Engineering and construction administration <br />should be included for effective design and construction of each BMP. <br />The BMPs within the study area are divided into three separate CIPs for project planning <br />purposes: CIP 1, CIP SW -1, and CEP SW -2. CIP 1 includes the biofiltration swales identified <br />within the CIP 1 Treatment Assessment Area. The CIP 1 treatment project will be advanced in <br />detail design after study completion. CIP SW -1 and CIP SW -2 include the remaining biofiltration <br />swales identified in the Treatment Assessment Area. Biofiltration swales in CIP SW -1 and CIP <br />SW -2 are grouped to include a similar quantity of biofiltration swaie area as compared to the CIP <br />1 treatment project. <br />The estimated construction cost of CIP SW -1 includes Biofiltration 81, B2, C1A, D1, and D2. The <br />estimated construction approximated cost of CIP SW -2 includes Biofiltration B14, B15A, B16A, <br />04, G2, H4, and H5. CIP SMJ and CIP SW -2 may be implemented through individual <br />biofiltration swale design and construction, or In clusters as specific stormwater treatment funding <br />is available and/or incorporated with roadway improvement projects. <br />9 <br />