6.14. SR 05-17-2004 - Laserfiche WebLink

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Mr. Scott Harlicker April 21, 2004 Page Two At the far west end of the property, a drain field area is shown approximately 140 feet by 90 feet. We assume this is large enough for a primary and secondary site. However, it is not noted as such on the plan. The southeast corner of the building shows a holding tank for non-domestic waste. It is unclear what this holding tank is for and how it will be dealt with. More information should be provided relative to this non-domestic waste holding tank. In addition, the well location is shown within approximately 25 feet of this tank. Is that sufficient setback between the tank and the well site? Based on our review of the drainage calculations, we have the following comments: · Additional information needs to be provided concerning the existing conditions 2, 10, and 100-year events, as well as the proposed conditions for the 2 and 10-year events. · The pond model does not match the regional pond information shown on the plan sheet. On the plan sheet, the HWL is shown at 877.78 while in the model, the HWL is shown as 874.58. This needs to be clarified. · The subcatchment routing does not show any storm sewer pipe prior to entering the pond, but there is storm sewer shown on the plan. This needs to be clarified in the model. · How will the rear parking area be made to drain directly west into the swale leading to the regional pond and be prohibited from draining either to the south or north onto the adjacent properties? More detail regarding this is needed on the plans. If you have any questions regarding any of these comments, please call. Sincerely, Howard R. Green Company Terry J. Maurer, TJM:sw Cc: Mark Kretschmer, Passe Engineering, Inc. 1611 Highway 10 NE Spring Lake Park, MN 55432 Ltr-042104-Harlicker