(a) All properties adjacent to the site of soil-disturbing activity shall be protected to the maximum extent practicable, from soil erosion and sediment runoff and drainage, including, but not limited to private properties, natural and artificial waterways, wetlands, storm sewers and public lands.
(b) Construction site erosion and sediment control practices used to satisfy this requirement shall conform, as a minimum, to State of Ohio standards as set forth in the most current edition of the Rainwater and Land Development Manual, defined by the Ohio Department of Natural Resources Division of Soil and Water Conservation and Natural Resource Conservation Service and shall conform to the most current Ohio Environmental Protection Agency, Ohio R.C. Chapter 6111 requirements.
(c) Erosion and sediment control plan approvals issued in accordance with these Rules do not relieve the owner of responsibility for obtaining all other necessary permits and/or approvals from federal state, and/or county agencies. If requirements vary, the most stringent requirements shall be followed.
(d) Erosion and sediment control practices at the site, and as identified in the ESC plan shall comply with the following:
(1) An approved erosion and sediment control plan or approval letter from the City of Louisville shall be located on site for review.
(2) Limits to clearing and grading shall be shown on ESC plans. Limits to clearing and grading shall be clearly marked on site with signage, flagging, and/or fencing etc.
(3) Install erosion and sediment perimeter controls as a first action of construction as specified by construction sequence. This shall include and is not limited to protective BMP’s for stream corridors and crossings, wetlands, site entrance, sediment traps and basins, barriers, and diversion dikes.
(4) Concentrated storm water runoff shall pass through a sediment control device before exiting the site boundaries. Concentrated runoff from bare soil areas shall be diverted into a settling pond or sediment control structure, or other approved sediment barrier before leaving the site.
(5) Earthen structures such as dams, basins, stream modifications and water diversions shall be seeded and mulched with in seven (7) days of the completion of installation. Dams shall conform to the Ohio Dam Laws (Ohio R.C. 1521.06).
(6) Stabilization of critical areas within 50 feet of any stream or wetland shall be temporarily stabilized within two (2) days of disturbance if area will remain inactive for fourteen (14) days or longer. Construction vehicles shall avoid streams and the 50 foot buffer areas. If an active drainageway must be crossed by construction vehicles repeatedly during construction, a temporary stream crossing shall be constructed according to the specifications in the Rainwater & Land Development Book. Construction of bridges, culverts or sediment control structures shall not place soil, debris and other fine particulate material into or close to the water resource in such a manner that it may slough, slip or erode.
(7) Storm sewer inlets (and sanitary) shall be protected so that sediment-laden runoff will not enter the storm sewer system without first being filtered and/or treated.
(8) Re-vegetate soil. Temporary soil stabilization shall occur within seven (7) days after rough grading if the area will remain idle longer than twenty-one (21) days. Permanent soil stabilization shall be installed within seven (7) days after final grade is reached on any portion of the site. Permanent vegetation is a ground cover dense enough to cover 80% of the soil surface and mature enough to survive winter weather condition.
(9) Soil stockpiles shall be stabilized or protected to prevent soil loss. Stabilization shall be required if stockpiles are located within critical areas near streams or wetlands, or if determined by the City of Louisville that sediment from stockpiles will leave the site.
(10) Unstable soils prone to slipping or sloughing shall not be cleared, graded, excavated, filled or have loads imposed upon them unless the work is planned by a qualified professional engineer and installed in accordance with the ESC plan. Cut and fill slopes should be designed to minimize erosion problems.
Adequate slope design includes use of rough soil surface along the face of the slope; water diversion along the top of the slope away from the face; terraces to reduce slope length; delivery of concentrated storm water flows to the base of the slope via adequate channel or pipe; and drainage for water seeps in the slope that endanger slope stability.
(11) Soil shall be removed from paved surfaces and/or public roads at the end of each day in such a manner that does not create off-site sedimentation in order to ensure safety and abate off-site soil loss. Collected sediments shall be placed in a stable location on site or taken off-site to a stable location.
(12) Stabilize disturbed or modified drainage ways. Reduce erosive effects of storm water by using and/or maintaining grassed swales, infiltration structures, or water diversions.
(13) Sediment and erosion controls shall be inspected once every seven (7) days and within 24 hours of a 0.5” or greater rainfall event. A written log of these inspections and improvements to controls shall be kept on site. The inspections shall include the date of inspection, name of inspector, weather conditions, actions taken to correct any problems and the date corrective actions were taken.
(14) Trenches for underground utility lines and pipes shall be temporarily stabilized within seven (7) days if they are to remain inactive for twenty-one (21) days. Trench dewatering devices shall discharge in a manner that filters soil-laden water before discharging it to a receiving drainage ditch or pond. If seeding, mulching, or other erosion and sediment control measures were previously installed, these protective measures shall be reinstalled.
(Ord. 12-27. Passed 5-7-12.)