2025 3 10 Work Session Packet 1

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ORDINANCE NO. 1138 
Page 10 of 19 
 
(9) Whenever a site assessment is to be performed by the engineer of record as required by 
the CGP, the operator shall provide a copy of the assessment to the City. 
(10) Twice-Weekly inspections of the site and the BMPs/SCMs must be performed by 
an individual who has either obtained certification under the Level I Fundamentals of 
Erosion Prevention and Sediment Control course, or greater, or has other credentials or 
licensure identified as an acceptable equivalent by the City. 
(11) Landscaping and stabilization requirements. 
(a) Any area of land from which the natural vegetative cover has been either partially 
or wholly cleared by development activities shall be stabilized. Stabilization 
measures shall be initiated as soon as possible in portions of the site where 
construction activities have temporarily or permanently ceased. Temporary or 
permanent soil stabilization at the construction site (or a phase of the project) 
must be completed not later than 14 days after the construction activity in that 
portion of the site has temporarily or permanently ceased. In the following 
situations, temporary stabilization measures are not required: 
(i.) where the initiation of stabilization measures is precluded by snow cover 
or frozen ground conditions or adverse soggy ground conditions, 
stabilization measures shall be initiated as soon as practicable; or, 
(ii.) where construction activity on a portion of the site is temporarily ceased, 
and earth disturbing activities will be resumed within 14 days. 
(b) Construction activity of steep slopes steeper than 3:1 require stabilization 
measures to be initiated within 7 days once activity has temporarily or 
permanently ceased. 
(c) In arid, semiarid, and drought-stricken areas where initiating vegetative 
stabilization measures immediately is infeasible, alternative stabilization measures 
such as properly anchored mulch, soil binders or matting must be employed. 
(12) Construction buffer zones.  
 
(a) Construction buffer zones shall include water quality buffers and buffer zones as 
defined in 14-502 above and shall meet the requirements in this ordinance and the 
TN CGP, as amended. The criteria for the width of the construction buffer zone 
can be established on an average width basis at a project, as long as the minimum 
width of the buffer zone is equal to or greater than the required minimum width at 
any measured location. 
 
(b) If the new development or redevelopment site encompasses both sides of a 
stream, buffer averaging can be applied to both sides but must be applied 
independently.  
 
(c) Water quality riparian buffer widths are measured from the top of bank also 
referred to as the “ordinary high-water mark.”  
 
(d) Construction buffers are not primary sediment control measures and shall not be 
relied on as such.  
 
(e) All stormwater discharges must enter the water quality riparian buffer zone as 
sheet flow, not as concentrated flow, where site conditions allow. The 
designer/operator must comply with the vegetation requirements and the 
permissible land uses set forth for buffers in the TN CGP.  
 
(f) Where it is not practicable to maintain a construction water quality riparian 
buffer, BMPs providing equivalent protection to a receiving stream as a natural 
water quality riparian buffer must be used. 
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