3721 OAKES AVE EVERETT MEMORIAL STADIUM 2018-12-21

IFIenginee Figure 2.2 from the Everett SWMM Start Here Does Me site have 35%or No No actuator more of existing impennOeS requirements coverage' redevelopment--.rc, Yes No Is the total of the new plus replaced Impervious surfaces 5,000 square feet or Cf ect^ more.AND does the value of the proposed Improvements-mctuding interior improvements-exceed 50%of the assessed valve of the existing site improvements? Yes Does the protect wilt 5.000 sq ft or more of new impervious No No Yes surtsces^ Yes Do new mperco s surfaces add 50%of more No No additional to the existing ImpeNlouS r requirement, surfaces untnm the ptotecl redevelpprnert !outs' Yes See Minimum Require nems #7 through#9 Figure f..E Flow Chart for Determining Additional Requirements for Rederelopmrnt Per conversation with the City of Everett,and based upon previous field projects within the City of Everett,the underdrained sports field will be considered as a hard(impervious)surface for determining minimum requirements.The project will have more than 5,000 of new impervious surface and therefore minimum requirements#1 through#9(MR1-MR9)will apply to new and replaced hard surfaces and the land disturbed for the project area. In addition,per Figure 2.2,the total new and replaced hard surface is greater than 5,000 square feet AND the proposed valuation of the project improvements are anticipated to exceed 50%of the access value of the existing natural grass field. Based upon discussions with the City of Everett, for only this type of sports field project,the"existing site improvements"used for the valuation are limited only within the limits of the project area,and do not include the entire property improvements. Therefore,all minimum requirements apply to the new and replaced hard surfaces and the converted vegetation areas. LPD Engineering, PLLC Page 3 Everett Memorial Stadium Baseball Field Replacement Storm Drainage Report, September 15, 2017