Councilman Darrin Ledford’s proposed guidelines:

› Retaining wall requirements: Prior to obtaining a land disturbance permit, drawings for any retaining wall equal to or greater than four feet in height must be approved in advance. Any retaining walls to be constructed onsite shall be constructed prior to beginning construction of the habitual structure unless a waiver is issued by the city’s Land Development Office because of some unusual situation or scheduling issue.

› Erosion control construction documents: Sites which otherwise typically require an erosion control plan, or where located within a floodplain, shall be designed by a registered engineer and/or an individual who is in good standing with the Tennessee Department of Environment and Conservation having passed the necessary courses with a Level 2 certification. Such sites shall also provide a signed preparers statement stating the following: “I hereby certify that the plans prepared were done so with the understanding that this site has steep slopes/is located within a flood plain and that the erosion control measures indicated are designed to address these conditions.”

› Additional land development inspection prior to foundation inspection: Once a land disturbance permit is issued on a site with steep slopes, the foundation footing inspections by city personnel shall occur only once the onsite erosion control measures implemented are inspected and found to be in good standing.

› Additional peak flow stormwater requirements: Sites with 35 percent slopes requiring stormwater runoff attenuation through stormwater detention shall have the peak post-construction runoff rates for the 2, 5, 10 and 25-year storm events peak flows reduced by a minimum of 10 percent of the calculated pre-construction peak stormwater runoff rates. Additionally, sites filling in flood plain areas requiring stormwater runoff attenuation through stormwater detention shall have the peak post-construction runoff rates for the 2, 5, 10 and 25-year storm events peak flows reduced by a minimum of 10 percent of the calculated pre-construction peak stormwater runoff rates.