Agenda - Council - 07/26/2005 - Laserfiche WebLink

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storm water management system prior to being discharged into the Mississippi River at or below existing flow rates. A Storm Water Pollution Prevention Plan will be created and implemented, as part of the improvements process. Temporary sediment and erosion control measures will utiltize variou~ BMPs during the construction of the improvements, and permanent features such as detention ponds and grassed swales will be used for flow rate control and water quality purposes. b. Identify routes and receiving water bodies for runoff from the site; include majOr downstream water bodies as well as the immediate receiving waters. Estimate impact runoff On the quality of receiving waters. There is a system of swales that transport mn0ff from the north to south. The site runs off to the south and ultimately into the Mississippi River via the City's storm sewer system. There are no adverse impacts anticipated with the proposed development improvements. a. Describe sources, composition and quantities of all sanita~, m~n~cipal ~nd industrial wastewater produced or treated at the site. The source of w~tewater from this project will be 686 homes. ~e composition 0fthe waste is t~ical residential. wastewater. An estimate 0fthe amount of w~tewater produced is b~ed on a volme of 100 gallons per capita per day, 686 homes, and an average of 2.75 People per home, which msul~ in a volume of 188,650 gallons per day. No industrial wastewater will be produced at the site. b. Describe waste treatment methods or pollution prevention effo~s and give estimates of composition after treatment. Identify receiving waters, including maid[ downstream water bodies, and estimate the discharge impact on the quality of receiving waters. If the project involves on-site sewage systems, discuss the suitability of site conditions for such systems. No wastewater treatment will be done on' site. Cu~ently, the Ci~ ofRa~ey's s~itary w~tewater is collected in interceptor sewers and treated by the Met Council's e~sfing trea~ent facili~ in St. Paul. S~it~ w~tewater ~om this project will also be treated by the Met Co~cil's existing Me~o m~icipal.sewage ~eatment facili~. The plant treats the wastewater to MPCA standards and discharges the ~eated effluent to the Mississippi River. .. c. If wastes will be discharged into a publicly.owned lreatment facility, 'identify the facility, describe any pretreatment provisions and discus~ the facili~% ability to handle the volume and composition of wastes,, identifying any improvements necessa~: Wastcwater fi'om this project will go t9 the existing ~et Council Me~o ~ea~ent plant in St. Paul~ Mi~esota. The existing plant h~ adequate capacity to se~ice the project, therefore no improvemenB MIl be necess~. d. If the project requires disposal of liquid animal manure, describe disposal technique and location and discuss capacity to handle the volume and composition of manure. Identify any improvements necessaq. Describe any requited setbacks for land. disposal systems. No animal wxstes, except domestic pet'w~te, will be produced on site. a. Describe any of the folloWing geologic sit~ hazards to ground water and also identify them on the site map: sinkholes, shallow limestone formations or karst conditions. Describe measures to avoid or minimize environmental problems due to any of these hazards.