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I•. Representative cross sextiunal diagram Plcasc provide a representati+•e cross-sectional <br />diagram of a lvpical monitoring well installation. Please note that picionteters may he adequate <br />ti)r nteasurcntent of ~roundwatcr monitoring levels. <br />g. Length of Monitoring hhe applicant has proposed monitoring groundwater clw•ations for a <br />period of 12 months titllowing ctnuplcuun of thu slum wall inst:dlation. If alter 12 or more <br />months ol'monia+ring the applicant believes there is sulTicicnt data to demonstrate that <br />groundwater monitoring is nu longer ncalcd at the site. the applirtnl may submit a request to rho <br />Division kt discontinue the groundwater-monitoring program. The Division will rc+•ic+v such <br />request and dctcmtinc if the request Wray be uantcd. <br />3. l he applicant has specified that the velocity and volume of tlov+s cxpc~cted on site fmm a 1(Ip- <br />ycar Iluod went, as well ;ts tltc elev anon of the I (IQ-year base Ilood event and its relation to the <br />clccauon of the spillways and lakeshore bcmt is pnn~idcYl in the ('onditional I_eltcr of ~1ap <br />Revision (('LOhIK) preciously provided. Please clarify vvhcrc in the CLOMR this infomtation is <br />located, or provtile if not preciously submitted. :11so, please yuantilj or charaeteriic the <br />expected groundwater surlitce between the stroam channel and the adjacent Iloodplain to the <br />north under such an event. <br />4. 1'hc applicant has proposed install:uion of three 13) spilways along the riverside ol'thc <br />reclaimed pond enthankmcntlsl during linal reclamation. Plctse specily when in the ('LOMR <br />docunwnt the Division may find the criteria used to determine the number of spilhv;rys to install <br />in the rerlainted lakelsl and the spacing hetwcun spillways. Since the r4xlaimed lake .ux1 slum <br />14 ifII IIt51allallOn will be adjarenl to a reach ol'the St. Vrtin River Thal is over I mile in length, the <br />:Ipplicant will need lu verify the nwnhrr of spilways nccdcd and the spacing intcn;d nccdcd to <br />ensure that Iluodw:uers Gum a luu-year Ilood cccnt will be dischargal hack safely to the main <br />channel of the St. Vrtin Ricer c+ithin :I reasonable period of time and also maintain the structural <br />integrity ul'thc slum, wall installation as well as the surrounding area. Please respond, <br />5. Plcasc commit to pmvidtng an "As Built" certilicalion from a registcr~d, professional engineer <br />or other yualilied pcnon within (+G days ol'complction of the cmbankmont stabilir:uion project <br />that the emb;utkntent stahilinuiun has been contplctai according to the approved designs so as to <br />provide ade+µratc protection against a b:utk-Iilll stream tlucv w•cnt or liom Iloudwatcrs resulting <br />Isom a II)n-year flood went, whichever is erecter. Also, the applicant will need to commit to <br />providing revised Wraps and engineering designs liar any signilicant changes required due to <br />unlorosecn licld conditions. Plcasc respond. <br />G. The applicant has spccilied avo 121 distinct scenarios liar the height of riverside emh;mkmcnt <br />to rcecive riprap installation. and these scenarios arc based on the proximity of the St. Vr:Iin <br />River to the exuung ponds. Plcasc clarify the criteria that the applicant will use to dilferontiate <br />when cash treatment will be applied, and please commit to providing riprap amwring or other <br />slope pmtrction measurrs lix any rn crhank location that is noI currently stable liom either <br />vegetation or existing riprap or concrete installation. <br />