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or other discharge. Restricted access to storage areas must be provided to prevent <br /> vandalism. Concrete wash must be limited to a defined area of the site and runoff <br /> must be contained within the defined area. Storage and disposal of hazardous <br /> waste must be in compliance with MPCA regulations. <br /> (3) Liquid Waste: All non stormwater discharges (concrete truck washout, <br /> vehicle washing,maintenance spills, etc.) conducted during the construction <br /> activity must comply with the newest version of the state NPDES Permit. <br /> (4) Sanitary Facilities; Adequate on-site sanitary facilities shall be provided in <br /> convenient 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 <br /> sufficient width and length to prevent sediment from being tracked onto public or private <br /> roadways. Any sediment reaching a public or private road shall be removed by street cleaning <br /> before the end of each workday. <br /> (e) Drain Inlet Protection. All storm drain inlets shall be protected during <br /> construction with control measures as approved by the City. These devices shall remain in place <br /> until final stabilization of the site. A regular inspection and maintenance plan shall be developed <br /> and implemented to assure these devices are operational at all times. <br /> (� Site Erosion Control. <br /> (1) Channelized runoff from adjacent areas passing through the site shall be <br /> diverted around disturbed areas, if practical. Diverted runoff shall be conveyed in <br /> a manner that will not erode the conveyance at receiving channels. All temporary <br /> or permanent drainage channels must be stabilized within 24 hours of being <br /> connected to a Water of the State. Sediment control is required along channel <br /> edges to reduce sediment reaching the channel. <br /> (2) All activities on the site shall be conducted in a logical sequence to <br /> minimize the area of bare soil exposed at any one time. <br /> (3) All disturbed ground left inactive for fourteen (14) or more days must <br /> have temporary or permanent stabilization year round. <br /> (4) For sites with more than ten(10) acres disturbed at one time, or if a <br /> channel originates in the disturbed area, one or more temporary or permanent <br /> sedimentation basins shall be constructed. Each sedimentation basin shall have a <br /> surface area of at least one percent of the area draining to the basin and at least <br /> three feet of depth and constructed in accordance with accepted design <br /> specifications. Sediment shall be removed to maintain a depth of three(3) feet. <br /> The basin discharge rate shall also be sufficiently low as to not cause erosion <br /> along the discharge channel or the receiving water. <br /> (5) Perimeter sediment control measures shall be placed along all down <br /> gradient perimeters of the site. If a channel or area of concentrated runoff passes <br /> 144922v2 9 <br />