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the criteria set forth in 927.030(A). Any project which proposes to disturb more than one (1) acre of land must comply with all NPDES Phase II regulations. 3. Schedule of events. A detailed schedule of dates and the sequence of land alteration activities, implementation, maintenance, etc. must be provided. Monitoring and inspection. There must be a detailed description of how erosion control, sediment control, and soil stabilization measures will be monitored, maintained, and removed. There must be a trained and certified person in erosion and sediment control to oversee implementation of the SWPPP, but for sites smaller than one acre, the person does not need to have completed approved training unless the site is adjacent to a water body. The City may reduce the submittal requirements of section 927.030.B for an applicant proposing to landscape an improved residential property provided certain findings are met. If the condition of the soils is unknown or unclear, the City may require soil borings or other site investigation and may require submission of a soils engineering or geology report. The SWPPP must be modified if there is a significant change in discharge and/or inspections indicate the plan is not effective in controlling pollutants and discharges from the site. C. SWPPP Performance Standards and Design Criteria. All SWPPS must be reviewed by the City to determine the effectiveness of the erosion and sediment control measures. Applicants must obtain easements from adjacent landowners if the SWPPP directs some or all runoff from the site. The site activity schedule must lessen impact on erosion and sediment creation. Exposed soil and mass grading should be avoided. Perimeter sediment control measures must be properly installed by the builder before the beginning of construction. The perimeter of any drainage channel must be stabilized within 24 hours of connecting to surface water. Pipe outlets must have energy dissipation installed within 24 hours of connection to surface water. Runoff must be controlled by use of year-round cover and either temporary sediment basins or sedimentation basins. Where a development replaces surface vegetation with one or more acres of impervious surface and all runoff has not been accounted for, runoff from the 2'/z-inch 24- hour storm event must be treated. A silt fence must be trenched and buried at least six inches into the soil and will be required to contain sheet flow runoff generated at an individual site. The toe of soil stockpiles greater than 10 cubic yards must be at least 25 feet from a road, drainage channel, or stormwater inlet. If left longer than 7 days, it must be stabilized. If left lest than 7 days, erosion from the stockpile must be controlled with perimeter control devices. If located within 25 feet, the stockpile must be immediately controlled with perimeter control devices. Temporary rock construction entrances must be installed and maintained wherever vehicles enter/exit a site. Construction entrances must be stabilized with a 1'/z" - 3" clear aggregate or approved equal. Sediment laden water removed from the site by pumping or trenching must be treated to remove a minimum of 80% of suspended solids before discharge. All storm drain inlets must be protected during construction and must remain in place until final stabilization of the site. An inspection and maintenance plan must be implemented to assure these devices are operational.