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Ms. Rachel Juba February 24, 2020 Page 2 6. The easterly north/south street will ultimately extend north to 165th Street. TO help alleviate higher speeds on this roadway, this roadway could be reconfigured to discourage speeding. Utility Plan 7. As identified in the City's Comprehensive Water Supply and Distribution Plan, a 24" trunk watermain will need to be extended north from the water tower location. The 24" water main should be extended north through the development with the City of Hugo paying for oversizing costs. 8. The City's Comprehensive Sanitary Sewer Plan identifies the way in which properties are to be served by sanitary sewer. A sanitary sewer connection to the MCES Interceptor is identified at 165th Street with a 33" trunk main. The proposed sketch plan identifies a connection to the MCES Interceptor approximately 1320 feet south of 165th Street. 9. While the proposed sewer connection is different than what is shown on the comprehensive plan, it does allow for properties to develop easier/faster due to the difficulties of the sanitary sewer and watermain being available from the north and south, respectively. Staff does feel this is a viable option, however, assurances via drainage and utility easements that would allow the sanitary sewer to be constructed out to 165th Street in the future would be required. 10. Staff recommends a Comprehensive Plan amendment for the change in location of the connection to the MES Interceptor. 11. The proposed sanitary sewer would need to be directed to the new trunk main. The sketch utility plan currently shows a portion of the sewer flowing to the south and west. Oversizing of the trunk main would be the responsibility of the City of Hugo. Stormwater Management/Wetlands 12. Volume control/water quality standard will be required, which is 1.1 inches off new impervious surfaces. Water reuse will be the preferred BMP option for the site for volume reduction. If an additional BMP is to be used, the TP removal factor from RCWD Rule C, Table C1. must be applied. 13. Peak stormwater runoff rates for the proposed project must not exceed existing rates for the 2-year and 10-year 24-hour rainfall events using Atlas 14 rainfall depths. 14. Peak stormwater runoff rates for the 100-year 24-hour rainfall event is limited to 0.1 cfs/acre. 15. Lowest building opening must be at least 3' above the 100-yr HWL for both wetlands and BMPs and 4' above the current groundwater elevations. 16. Private ditches to JD3 are located onsite. Maintain private ditch drainage to JD3. Developer to confirm with RCWD if a permit for Rule I is needed. 17. No 100-year floodplains located onsite. 18. Stormwater Management facilities will be required to be within drainage and utility easements. 19. The applicant is proposing to utilize stormwater reuse as part of their stormwater management plan. 20. A wetland delineation on the parcel was approved during the fall of 2018. 21. The concept plan shows a number of impacts to wetlands that appear to be avoidable. The applicant may find it helpful to have a pre -application meeting with the Technical Evaluation Panel to get a better idea of what impacts may or may not be allowed. A number of the wetland impacts are to linear wetlands that may provide hydrology to other wetlands which should also be a consideration with proposed impacts. U:\PC Packets\2020\02.27.20\LTR-rjuba-Meadows at Hugo Concept Plan - 022420.docx