28-14 Amend Chp. 1339 Storm Water Mgmt

Home Browse Search

(i) Where vegetative stabilization techniques may cause structural instability or are otherwise unobtainable, alternative stabilization techniques must be em- ployed. In any case, temporary or permanent stabilization will be properly installed, pursuant to the most recent edition of the Ohio Rainwater and Land Development manual, before the second building permit is issued. (j) Sediment Settling Ponds: A sediment settling pond is required for any one of the following conditions: (1) Concentrated storm water runoff (e.g., storm sewer or ditch); (2) Runoff from drainage areas, which exceed the design capacity of silt fence or other sediment barriers; (3) Runoff from drainage areas that exceed the design capacity of inlet pro- tection; or (4) Runoff from common drainage locations with 10 or more acres of dis- turbed land. (5) Alternative controls can be used if the owner can show, in writing, that the Ohio EPA approved the use of alternatives that the owner demon- strated to be equivalent in effectiveness to a sediment settling pond. (k) Sediment Settling Ponds shall be dewatered at the pond surface using a skimmer (or City- approved equivalent device). The sediment settling pond volume consists of both a dewatering zone and a sediment storage zone. (1) Where storm sewer drainage areas include 10 or more acres disturbed at one time, a temporary (or permanent) sediment settling pond must be provided until final stabilization of the site. In single- family residential construction, final stabilization is after the houses are built and penna- nent landscaping is done. A. Alternative equivalent controls may be used if the owner can show, in writing, that the Ohio EPA approved the use of the alternatives in the SWP3 for the site, subject to the approval of the city engi- neer. B. It is recommended that for drainage locations of less than 10 acres, smaller sediment settling basins or sediment traps be used. 43 for 14 days or more For all construction activities, any dis- Within seven days of the most recent turbed areas that will be dormant for disturbance within the area. more than 14 days but less than one year and not within 50 feet of a surface For residential subdivisions, disturbed water of the state areas must be stabilized at least seven days prior to transfer or permit cover- age for the individual lot(s). Disturbed areas that will be idle over Prior to the onset of winter weather winter (i) Where vegetative stabilization techniques may cause structural instability or are otherwise unobtainable, alternative stabilization techniques must be em- ployed. In any case, temporary or permanent stabilization will be properly installed, pursuant to the most recent edition of the Ohio Rainwater and Land Development manual, before the second building permit is issued. (j) Sediment Settling Ponds: A sediment settling pond is required for any one of the following conditions: (1) Concentrated storm water runoff (e.g., storm sewer or ditch); (2) Runoff from drainage areas, which exceed the design capacity of silt fence or other sediment barriers; (3) Runoff from drainage areas that exceed the design capacity of inlet pro- tection; or (4) Runoff from common drainage locations with 10 or more acres of dis- turbed land. (5) Alternative controls can be used if the owner can show, in writing, that the Ohio EPA approved the use of alternatives that the owner demon- strated to be equivalent in effectiveness to a sediment settling pond. (k) Sediment Settling Ponds shall be dewatered at the pond surface using a skimmer (or City- approved equivalent device). The sediment settling pond volume consists of both a dewatering zone and a sediment storage zone. (1) Where storm sewer drainage areas include 10 or more acres disturbed at one time, a temporary (or permanent) sediment settling pond must be provided until final stabilization of the site. In single- family residential construction, final stabilization is after the houses are built and penna- nent landscaping is done. A. Alternative equivalent controls may be used if the owner can show, in writing, that the Ohio EPA approved the use of the alternatives in the SWP3 for the site, subject to the approval of the city engi- neer. B. It is recommended that for drainage locations of less than 10 acres, smaller sediment settling basins or sediment traps be used. 43