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Home My WebLink About20050045 Ver 1_Staff Report_20050107MEMORANDUM TO: John Dorney Regional Contact: Non-Discharge Branch WQ Supervisor: Date: SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS Alan Johnson Rex C3leason Facility Name Childress Klein Properties: Steele Creek Road County Mecklenburg Project Number 05 0045 Recvd From APP County2 Region Alooresville Received Date 1/7/05 Recvd By Region Project Type commercial Certificates Stream Permit Wetland Wetland Wetland Stream Class Acres Feet Type Type Impact Score Index Prim. Supp. Basin Req. Req. NV isolated FT ON F--f-11-137-10-1 c 30,834. 0.40 F- F_ F-O Y _0N ?????F__ F__ Mitigation Wetland MitigationType Type Acres Feet Is Wetland Rating Sheet Attached? O Y 4N Did you request more info? O Y @N Have Project Changes/Conditions Been Discussed With Applicant? Q Y O N Is Mitigation required? O Y @N Recommendation: @ Issue O Issue/Coed O Deny Provided by Region: Latitude (ddmmss) 35 06 07 Longitude (ddmmss) 80 59 03 Comments: Staff visited the site on January 10, 2005. The site is old agricultural fields, which are returning to forested conditions. The road adjacent to the property is currently being expanded to 4 lanes and the area in general is in a state of commercial development. The applicant requests approval to fill two isolated wetlands on the site. The fill is to allow for the construction of a commercial shopping center- The two wetlands are located in the interior of the development. Avoidance/minimization is not an option, r1___.--.--_.-r n__-..-I i--..--1 L.. RAP1!\ cc: Regional Office Central Office Page Number 1 Wetlands Tracking Projects Owner Agent List Totals 14ew Record Print Facility Name Childress Klein Properties: Steele Creels Road I County Mecklenburg Project Number 05 0045 County2 Inactive I Region Mooresville Project Type plu j)ose of commercial I DCM Office Location Walker Branch, NC 49 (York Rd) & NC 160 (Steele Creek ( COE Office Asheville 401s Last Total Total Total Mit Recvd Sent to Recvd Action 401 401 Totals Mit Recvd From Date Region Region Date Last Action Acres Feet Acres Feet API, 1/7/2005 1/18%2005 2/10/200; Issue Gencral 0.40 401 A6 ?1 rl T Total for Project: 0.40 Inspections/ Violations Inspection Date Inspector Compliant Letter Type Date Sent Reply Date Current St O Y O Inspect. ? I I i ? 1 1 ? T Project Name: RiverGate 1/ Project No. DWQ 05-0045 V SUBMITTED DESIGN: 1 REQUIRED DESIGN: ((( elevations Permanent Pool (ft) 594 Temporary Pool (ft) 595.82 1.82 ft. depth ok areas Permanent Pool SA (sq ft) 60500 37929 sq. ft. ok Drainage Area (ac) 39.1 Impervious Area (ac) 33.2 84.9 % - Forebay (ft2) 9227 15.25124 % ok High Marsh (ft2) 21530 35.6 % ok Low Marsh (ft2) 21530 35.6 % ok Micropool (ft2) 9227 15.25124 % ok 101.676 % volumes Temporary Pool (cu ft) 116385 115561 cu. ft. ok other parameters SA/DA 3.55 2.23 - Orifice Diameter (in) 3.5 0.31 cfs drawdown - Design Rainfall (in) 1 4.4 day drawdown ok Linear Interpolation of Correct SAIDA*** % Impervious Next Lowest 80 Project Impervious 84.9 Next Highest 90 0 ft. Permanent Pool Depth SA/DA from Table 2.06 2.23 2.4 4 1?,, J 6-5- Project Name: RiverGate Project No. DWQ 05-0045 SUBMITTED DESIGN: 2 REQUIRED DESIGN: elevations Permanent Pool (ft) 587 Temporary Pool (ft) 588.83 1.83 ft. depth ok areas Permanent Pool SA (sq ft) 47629 29800 sq. ft. ok Drainage Area (ac) 30.8 Impervious Area (ac) 26.1 84.7 % - Forebay (ft2) 7144 14.999265 % ok High Marsh (ft2) 16670 35.0 % ok Low Marsh (ft2) 16670 35.0 % ok Micropool (ft2) 7144 14.999265 % ok 99.9979 % volumes Temporary Pool (cu ft) 91679 90859 cu. ft. ok other parameters SA/DA 3.55 2.22 - Orifice Diameter (in) 3 0.23 cfs drawdown - Design Rainfall (in) 1 4.7 day drawdown ok Linear Interpolation of Correct SAIDA*** % Impervious Next Lowest 80 Project Impervious 84.7 Next Highest 90 0 ft. Permanent Pool Depth SA/DA from Table 2.06 2.22 2.4 eqc- ?-, ?J ? ?,o ? 4?" ??z Project Name: RiverGate Project No. DWQ 05-0045 SUBMITTED DESIGN: 1 REQUIRED DESIGN: elevations Permanent Pool (ft) 594 Temporary Pool (ft) 595.82 1.82 ft. depth ok areas Permanent Pool SA (sq ft) 60500 37929 sq. ft. ok Drainage Area (ac) 39.1 Impervious Area (ac) 33.2 84.9 % - Forebay (ft2) 9227 15.25124 % ok High Marsh (ft2) 21530 35.6 % ok Low Marsh (ft2) 21530 35.6 % ok Micropool (ft2) 9227 15.25124 % ok 101.676 % volumes Temporary Pool (cu ft) 116385 115561 cu. ft. ok other parameters SA/DA 3.55 2.23 - Orifice Diameter (in) 4 0.40 cfs drawdown - Design Rainfall (in) 1 3.4 day drawdown ok Linear Interpolation of Correct SAIDA*** % Impervious Next Lowest 80 Project Impervious 84.9 Next Highest 90 0 ft. Permanent Pool Depth SA/DA from Table 2.06 2.23 2.4 %z r - Project Name: RiverGate Project No. DWQ 05-0045 SUBMITTED DESIGN. 2 elevations Permanent Pool (ft) Temporary Pool (ft) areas Permanent Pool SA (sq ft) 47629 Drainage Area (ac) 30.8 Impervious Area (ac) 26.1 Forebay (ft2) 7144 High Marsh (ft2) 16670 Low Marsh (ft2) 16670 Micropool (ft2) 7144 volumes Temporary Pool (cu ft) 91679 other parameters SA/DA 3.55 Orifice Diameter (in) 4 Design Rainfall (in) 1 Linear Interpolation of Correct SAIDA *** % Impervious Next Lowest 80 Project Impervious 84.7 Next Highest 90 587 588.83 REQUIRED DESIGN: 1.83 ft. depth ok 29800 sq. ft. ok 84.7 % - 14.999265 % ok 35.0 % ok 35.0 % ok 14.999265 % ok 99.9979 % 90859 cu. ft. ok 2.22 - 0.40 cfs drawdown - 2.6 day drawdown ok 0 ft. Permanent Pool Depth SA/DA from Table 2.06 2.22 2.4 (6?- l V-Zl--Y