APPENDIX D: RECOMMENDATION CHART FOR INFILTRATION STORMWATER MANAGEMENT BMPs IN CARBONATE BEDROCK
*   Source: Developed by Cahill Associates based on information in “Technical Best Management Practice Manual and Infiltration Feasibility Report”, November 2002 and input from the LVPC, 2003
**   Special geologic feature buffer widths are as follows:
      Low buffer is less than 50 feet
      Medium buffer is 50 feet to 100 feet
      High buffer is greater than 100 feet
***   Rates greater than 500% not recommended
**** Assumes adequately permeable soils and lack of natural constraints as required for all infiltration systems.
1   Infiltration systems may be allowed at the determination of the engineer and/or geologist, provided that a detailed site investigation is undertaken which confirms nature of rock, location of special geologic features, and adequacy of the buffer between the SGF and the proposed stormwater system(s)
2   In these special geologic features: low buffer situations, infiltration systems may be allowed at the determination of the engineer and/or geologist, provided that a detailed site investigation is undertaken and a 25-foot buffer from SGFs is maintained
 
(Ord. 226-2007, passed 5-7-2007)