2026 05 05 Response Letter rcd 5 6 2026

Mavis Tire Supply, LLC May 5, 2026 Page 6 of 21 4. The stormwater report should be revised to include stability calculations for the stone riprap in the bioretention basin. Response: The enclosed Stormwater Report has been revised to include Channel stability calculations for the stone riprap conveying stormwater runoff to the bioretention basin. 5. The times of concentration shown in the Existing Conditions input Summary Table on page 3 do not match the times of concentration in the hydrograph summary reports. Revise accordingly. Response: The enclosed Stormwater Report has been revised to match times of concentration between the existing conditions input summary table and the hydrograph summary reports. 6. The existing peak flow rates shown in the Existing Conditions Flow Summary Table on page 3 and in the Point of Analysis #1 Table on page 6 of the stormwater report do not match the existing peak flow rate in the hydrograph summary reports. Revise accordingly. Response: The enclosed Stormwater Report has been revised to match existing peak flow rates between the existing conditions flow summary table, the point of analysis #1 table, and the hydrograph summary reports. 7. The following information shown in the Proposed Conditions Input Summary Table on page 4 of the stormwater report does not match the same within the hydrograph summary reports. a. The time of concentration of PDA-Bioretention Basin (Pervious) b. The time of concentration of PDA-Bioretention Basin (Impervious) c. The drainage area of PDA-Uncontrolled (Pervious) d. The time of concentration of PDA-Uncontrolled (Pervious) e. The drainage area of PDA-Uncontrolled (Impervious) f. The time of concentration of PDA-Uncontrolled (Impervious) Revise accordingly. Response: The enclosed Stormwater Report has been revised to match the listed information in the proposed conditions input summary table with that of the hydrograph summary reports. 8. The proposed peak flow rates shown in the Proposed Conditions Flow Summary Table on page 4 of the stormwater report do not match the Point of Analysis #1 Table on page 6 of the stormwater report nor the proposed peak flow rate in the hydrograph summary reports. Revise accordingly. Response: The enclosed Stormwater Report has been revised to match proposed peak flow rates between the proposed conditions flow summary table, the point of analysis #1 table, and

Revise accordingly. Response: The enclosed Stormwater Report has been revised to match proposed peak flow rates between the proposed conditions flow summary table, the point of analysis #1 table, and the hydrograph summary reports.