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' � Municode Page 5 of 7 <br /> (a) (Plan standards required.]No stormwater pollution prevention plan that fails to meet the <br /> standards contained in this section shall be approved by the city council or designated <br /> representative. <br /> �b) Site dewatering. Water pumped from the site shall be treated by temporary sedimentation <br /> basins, grit chambers, sand filters, upflow chambers, hydrocyclones, swirl concentrators or <br /> other appropriate controls as appropriate. All water from dewatering must be discharged in a <br /> manner that does not cause nuisance conditions, erosion in receiving channels or on <br /> downslope properties, or inundation in wetlands causing significant adverse impact to the <br /> wetland. <br /> All discharge points must be adequately protected from erosion and scour. The discharge must be <br /> dispersed over natural rock riprap, sand bags, plastic sheeting or other accepted energy dissipation <br /> measures. Adequate sedimentation control measures are required for discharge water that contains <br /> suspended solids. <br /> ��) Construction site waste. <br /> ��) Wasfe and material disposal:All waste, unused building material (including garbage <br /> debris, cleaning wastes, wastewater, toxic materials or hazardous materials), <br /> collected sediment, asphalt and concrete millings, floating debris, paper, plastic, <br /> fabric, construction and demolition debris and other wastes must be properly <br /> contained on site and disposed of off site, not allowed to be carried by runoff into <br /> receiving channel or storage sewer system. <br /> �2) Hazardous materials:Oil, gasoline, paint and any hazardous substances must be <br /> properly stored, including secondary containment, to prevent spill, leaks or other <br /> discharge. Restricted access to storage areas must be provided to prevent vandalism. <br /> Concrete wash must be limited to a defined area of the site and runoff must be <br /> contained within the defined area. Storage of hazardous waste must be in compliance <br /> with MPCA regulations. <br /> �3) Liquid waste:All non stormwater discharges (concrete truck washout, vehicle <br /> washing, maintenance spills, etc.) conducted during the construction activity must <br /> comply with the newest version of the state NPDES permit. <br /> �4) Sanitary facilities:Adequate on-site sanitary facilities shall be provided in convenient <br /> location(s) for all persons who work on the site. <br /> �d) Tracking. Each site shall have graveled roads, access drives and parking areas of sufficient <br /> width and length to prevent sediment from being tracked onto public or private roadways. <br /> Any sediment reaching a public or private road shall be removed by street cleaning before <br /> the end of each workday. <br /> �e) Drain inlet protection. All storm drain inlets shall be protected during construction with control <br /> measures as approved by the city. These devices shall remain in place until final stabilization <br /> of the site. A regular inspection and maintenance plan shall be developed and implemented <br /> to assure these devices are operational at all times. <br /> (fl Site erosion control. <br /> (�) Channelized runoff from adjacent areas passing through the site shall be diverted <br /> around disturbed areas, if practical. Diverted runoff shall be conveyed in a manner <br /> that will not erode the conveyance at receiving channels. All temporary or permanent <br /> drainage channels must be stabilized within 24 hours of being connected to a water of <br /> the state. Sediment control is required along channel edges to reduce sediment <br /> reaching the channel. <br /> (2) All activities on the site shall be conducted in a logical sequence to minimize the area <br /> of bare soil exposed at any one time. <br /> http://library.municode.com/print.aspx?h=&clientID=13094&HTMRequest=http%3a%2f%... 9/3/2013 <br />