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, , / <br /> September 25, 2013 <br /> 325 Crestview Avenue <br /> Page 3 of 4 <br /> (d) Tracking. Each site shall have graveled roads, access drives and parking areas of sufficient width and <br /> length to prevent sediment from being tracked onto public or private roadways. Any sediment reaching a <br /> public or private road shall be removed by street cleaning before the end of each workday. <br /> (e) Drain inlet protection. Ali storm drain inlets shall be protected during construction with control measures as <br /> approved by the city. These devices shall remain in place until final stabilization of the site. A regular <br /> inspection and maintenance plan shall be developed and implemented to assure these devices are <br /> operational at all times. <br /> (f) Site erosion control. <br /> (1) Channelized runoff from adjacent areas passing through the site shall be diverted around disturbed <br /> areas, if practical. Diverted runoff shall be conveyed in a manner that will not erode the conveyance at <br /> receiving channels. Ali temporary or permanent drainage channels must be stabilized within 24 hours <br /> of being connected to a water of the state. Sediment control is required along channel edges to reduce <br /> sediment reaching the channel. <br /> (2) All activities on the site shali be conducted in a logical sequence to minimize the area of bare soil <br /> exposed at any one time. <br /> (3) All disturbed ground left inactive for 14 or more days must have temporary or permanent stabilization <br /> year round. <br /> (4) For sites with more than ten acres disturbed at one time, or if a channel originates in the disturbed <br /> area, one or more temporary or permanent sedimentation basins shall be constructed. Each <br /> sedimentation basin shall have a surface area of at least one percent of the area draining to the basin <br /> and at least three feet of depth and constructed in accordance with accepted design specifications. <br /> Sediment shall be removed to maintain a depth of three feet. The basin discharge rate shall also be <br /> sufficiently low as to not cause erosion along the discharge channel or the receiving water. <br /> (5) Perimeter sediment control measures shall be placed along all down gradient perimeters of the site. If <br /> a channel or area of concentrated runoff passes through the site, perimeter sediment control <br /> measures shall be placed along the channel edges to reduce sediment reaching the channel. All down <br /> gradient perimeter sediment control measures must include a maintenance and inspection schedule. <br /> (6) Any soil or dirt storage piles containing more than ten cubic yards of material should not be located <br /> within 25 feet from a roadway or drainage channel. If remaining for more than 14 days, they shall be <br /> stabilized by mulching vegetative cover, tarps or other means and enciosed with down gradient <br /> perimeter sediment controls. Piles which will be in existence for less than 14 days shall be enclosed <br /> with perimeter sediment controls. <br /> (7) Pipe outlets must have energy dissipation installed within 24 hours of connection to waters of the state. <br /> (g) Inspections and maintenance. The owner shall be responsible for conducting inspections and maintenance <br /> of all erosion and sediment control BMPs on site. <br /> (1) Inspections, maintenance, and rainfall on site must be documented and readily available for review. <br /> Inspections are required as followed: <br /> a. Once every seven days on exposed soil areas. <br /> b. Within 24 hours after a one-half inch or greater rain event over 24 hours. <br /> c. Once every 30 days on stabilized areas. <br /> d. As soon as runoff occurs or prior to resuming construction on frozen ground. <br /> (2) Maintenance is required as follows: <br /> a. When sediment reaches 1/3 the height of the BMP on perimeter control devices, sediment must <br /> be removed within 24 hours of discovery. <br /> b. If the perimeter control device is not functional it must be repaired or replaced within 24 hours of <br /> discovery. <br /> c. Temporary sediment basins shall be maintained when sediment reaches '/z the outlet height or 'h <br /> the basin storage volume. Basins must be drained or sediment removed within 72 hours of <br /> discovery. <br /> d. Sediment must be removed from paved surfaces within 24 hours of discovery. <br />