3214 BROADWAY BROADWAY KINECT APARTMENTS 2021-08-11

• • • �' • • with the sewer where both flows will be conveyed through a 12"pipe and finally into the existing storm-sewer system manhole located in 32"d and Broadway Ave. • The proposed project will have 0.44 acres of replaced impervious surface and 0.32 of new impervious area for a • total of 0.76 acres of impervious in one threshold discharge area.See Appendix 4 for developed site hydrology • calculations and design. • SECTION 4: CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN • • Less than 1 acre of land will be disturbed for this project,and it is not part of a larger common plan of • development or sale that disturbs an acre of more of land.The requirements for a Small Parcel Pollution Prevention Plan are: 1. Provision of a construction access route located on the north side of the project site on 32"d Ave. See • construction entrance on sheet EC-01 in the construction documents. . 2. Stabilization of denuded areas. Filter fence and catch basin inserts will be used. See sheets EC-01 and EC- 01 in the construction documents. • 3. Protection of adjacent properties. Silt fence will be used to retain silt on the site. See Sheets EC-01 and • EC-02 in the construction documents.The project will involve excavating below the surrounding areas to • provide parking under the building.Water that does not infiltrate will be pumped into a baker tank on site and for settlement prior to release or hauled away and disposed of. - 4. Maintenance of erosion and sediment control BMP's.The contractor will be responsible for maintaining • BMP's. See General TESC Notes on sheet EC-01. • SECTION 5: SOURCE CONTROL PLAN • See Activity Worksheet(from Chapter 2 of Volume IV, Figure 1.1)Appendix 6 Activity Worksheet. • • Activity:A1.2(cleaning or washing of cooking equipment)This will occur inside the building with no chance of stormwater contamination. • • Activity:A4.4(temporary storage or processing of fruits or vegetables)This will occur inside the building with no chance of stormwater contamination. • • Activity:A4.4(storage of solid wastes and food wastes)This will occur inside the building with no chance of • stormwater contamination. • Activity:A4.9(parking and storage for vehicles and equipment)All parking will be in covered areas not subject to • rainfall. Underground parking areas will have a drain connected to the sanitary sewer. • SECTION 6: SPECIAL REPORTS AND STUDIES • A Geotechnical Engineering Study was done for the site. See the Geotechnical Report provided by Earth Solutions • NW, LLC,Appendix 5. • • • • • • a • Broadway Apartments 7 of 9 Storm water Site Plan • •