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. . �, <br /> Liquid waste:All non stormwater discharges (concrete truck washout, vehicle washing, <br /> ; maintenance spills, etc.) conducted during the construction activity must comply with the <br /> newest version of the state NPDES permit. <br /> il (4) <br /> 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) <br /> Tracking. Each site shall have graveled roads, access drives and parking areas of sufficient width <br /> and length to prevent sediment from being tracked onto public or private roadways. Any sediment <br /> reaching a public or private road shall be removed by street cleaning before the end of each <br /> workday. <br /> (e) <br /> 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 of the <br /> site. A regular inspection and maintenance plan shall be developed and implemented to assure <br /> these devices are operational at all times. <br /> (fl <br /> Site erosion control. <br /> (1) <br /> Channelized runoff from adjacent areas passing through the site shall be diverted around <br /> disturbed areas, if practical. Diverted runoff shall be conveyed in a manner that will not erode <br /> the conveyance at receiving channels. All temporary or permanent drainage channels must <br /> be stabilized within 24 hours of being connected to a water of the state. Sediment control is <br /> required along channel edges to reduce sediment reaching the channel. <br /> �2) <br /> All activities on the site shall be conducted in a logical sequence to minimize the area of bare <br /> soil exposed at any one time. <br /> (3) <br /> All disturbed ground left inactive for 14 or more days must have temporary or permanent <br /> stabi�ization year round. <br /> (4) <br /> For sites with more than ten acres disturbed at one time, or if a channel originates in the <br /> disturbed area, one or more temporary or permanent sedimentation basins shall be <br /> constructed. Each sedimentation basin shall have a surface area of at least one percent of <br /> the area draining to the basin and at least three feet of depth and constructed in accordance <br /> with accepted design specifications. Sediment shall be removed to maintain a depth of three <br /> feet. The basin discharge rate shall also be sufficiently low as to not cause erosion along the <br /> discharge channel or the receiving water. <br /> (5) <br /> Perimeter sediment control measures shall be placed along all down gradient perimeters of <br /> the site. If a channel or area of concentrated runoff passes through the site, perimeter <br /> sediment control measures shall be placed along the channel edges to reduce sediment <br /> reaching the channel. All down gradient perimeter sediment control measures must include a <br /> maintenance and inspection schedule. <br /> 12 <br />