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  <br /> <br />culverts within ACD 10-22-32 easement and submit information to the City. <br />Waiting for verification from RCWD. <br />4.The applicant shall include the 10-day snowmelt event in modeling and update the <br />proposed 10-day snowmelt HWLs on the plans. 10-day snow melt added to the models <br />and report. <br />Applicant shall include the modeled 10-day snowmelt HWLs on the plans. <br />10-day snow melt results are shown on the plans and will be included in the updated <br />SWMP. <br />5.The applicant shall confirm the amount of new impervious. There are different numbers <br />in Section 1.2 and Section 2.5 of the Stormwater Management Plan, Section 2.2 of the <br />Stormwater Pollution Prevention Plan (SWPPP), and the HydroCAD modeling. New <br />impervious area has been recalculated and confirmed. <br />Addressed for Stormwater Management Plan and HydroCAD. Applicant shall <br />update the SWPPP. <br />SWPPP updated per SWMP updates. <br />6.See Table C3 in RCWD Rule C: Stormwater Management Plans for maximum curve <br />numbers for existing conditions and adjust modeling accordingly. See section 4b for <br />adjustments to curve numbers for proposed conditions. Curve numbers changed to <br />match RCWD rules <br />7.The applicant shall confirm that the names of wetlands match between the existing <br />conditions map and the existing conditions HydroCAD model. Node IDs are changed <br />8.The applicant shall provide the wetland susceptibility class, bounce, and inundation <br />periods for impacted wetlands. See Table C4 and section 8 in RCWD Rule C. <br />None of the wetlands provide retention or significant bounce in existing or proposed <br />conditions because there is not a well-defined storage or outlet component. <br />The submitted HydroCAD model indicates that wetlands on the site have storage <br />and outlets. Please provide wetland susceptibility class, bounce, and inundation <br />periods for impacted wetlands. <br />Summary will be provided in the updated SWMP. The total bounce in the wetlands is less <br />than 1 foot for the 100-year rainfall event. The outlets and storage are modeled as natural <br />overflow weirs with typical undulating bottoms for storage. <br />9.The applicant shall refer to Table C5 in RCWD Rule C for soil infiltration rates. <br />Comment Noted <br />Applicant shall update infiltration rate in HydroCAD model for IB10 to be <br />consistent with soil boring and Table C5. <br />Soil boring SB-2 was placed in the infiltration area. The soil was described as silty sand <br />overlying coarse-grained sand. This is consistent with an infiltration rate of 0.45. <br />10.The applicant shall update water quality standards to be consistent with the requirement <br />to treat 1.1-inches of runoff for new or reconstructed impervious surface per section 6c <br />of RCWD Rule C. See Table C1 in RCWD Rule C for the TP removal factor for <br />stormwater ponds and apply as necessary. The applicant shall verify that the site is <br />meeting water quality treatment standards. Meeting the standards is not feasible on this <br />site due to the high water table. <br />The applicant needs to meet water quality standards for the site. Please update <br />Appendix C to account for the TP removal factor indicated for stormwater ponds <br />(Table C1 in RCWD Rule C or Table 2 in Lino Lakes Code of Ordinances <br />Chapter 1011). The applicant shall consider including a water quality discussion <br />in Section 2 of the Stormwater Management Plan.