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HomeMy WebLinkAbout20081265 Ver 2_More Info Received_20090728ENGINEERING - SURVEYING - DESIGNING -DRAFTING Larry King & Associates R.L.S., P.A. Post Office Box 53787 •1333 Morganton Road, Suite 201 Fayetteville, North Carolina 28305 (910) 483-4300 - Fax: (910) 483-4052 www.LKandA.com leg - vlLo S V July 27, 2009 Ms.Cyndi Karoly, Supervisor 401 Oversight Express Review Permitting Unit NCDENR Division of Water Quality 1650 Mail Service Center Raleigh, North Carolina 27699-1650 Re: Two Bale Lane at Cotton Square Little Rockfish Creek 1030615,18-31-24-(7), Cl Request for more information r' ? t?.! E Dear Ms. Karoly: < JUL £' 2JCJ I am providing the following information DENR - WATER QUALITY WETLANDS AND STOMAWA'E.4 ERMNCH a. Delineated drainage basins on plans b. The boundaries of the drainage easements. c. A vegetation specification for the planting shelf d. A section view of the basins that shows both the pretreatment and treatment areas. e. A table of elevations, areas, incremental volumes and accumulated volumes for the overall ponds and for fore bays. f. A soils report based on field investigation by Southeastern Soil & Environmental Associates, Inc. determining elevations Seasonal High Water Table (SHWT). I am enclosing five copies of updated plans. If you have, any questions, please let us know. Sincerely, Larry King & Associates, R.L.S., P.A. Thomas S. Speight, Jr. PE, PLS Cc: John Gillis, Developer Partner Ken Averitte, DWQ Fayetteville Regional Office Ronnie Smith USACE Wilmington Regulatory Field Office Troy Beasley, Withers and Ravenel, Wilmington Office IF Two Bale Lane Wet Pond Volumes Wet Pond-1 Overall Basin Volume Stage Elev. Diff contour Area Incr. Vol. ccum. Vol. (ft) (ft) (sf) (if) (cf) 161 0 968 0 0 162 1 1645 1,307 1,307 163 1 2,277 1,961 3,268 164 1 2,970 2,624 5,891 165 1 3,720 3,345 9,236 165.5 0.5 5,262 2,246 11,482 Wet Pond-1 Forebay Volume Stage Contour Elev. Diff Area Incr. Vol. ccum. Vol. (ft) (ft) (st) (cf) (cf) 161 0 111 0 0 162 1 212 162 162 163 1 345 279 440 164 1 507 426 866 ... 165 1 694 601 1,467 165.5 0.5 820 379 1,845 Wet Pond-2 Overall Basin Volume Stage Elev. Diff Contour Area Incr. Vol. ccum. Vol. (ft) (ft) (sf) (cf) (cf) 161 0 734 0 0 162 1 1250 992 992 163 1 1,854 1,552 2,544 164 1 2,542 98 4,742 165 1 3,319 31 ± 7,673 165.5 0.5 5,042 2,090 9,763 Wet Pond-3 Overall Basin Volume Stage Elev. Diff Contour Area Incr. Vol. ccum. Vol. (ft) (ft) (sf) (cf) (cf) 152 0 734 0 0 153 1 1250 992 992 154 1 1,854 1,552 2,544 155 1 2,542 2,198 4,742 156 1 3,319 2,931 7,673 156.5 0.5 5,042 2,090 9,763 Wet Pond-2 Forebay Volume Stage Contour Elev. Diff Area Incr. Vol. ccum. Vol. (ft) (ft) (sf) (cf) (cf) 160 0 39 0 0 161 1 119 79 79 162 1 232 176 255 163 1 553 393 647 164 1 763 658 1,305 ., 165 1 902 833 2,138 Wet Pond-3 Forebay Volume Stage Contour Elev. Diff Area Incr. Vol. ccum. Vol. (ft) (ft) (sf) (cf) (cf) 160 0 39 0 0 161 1 119 79 79 162 1 232 176 255 163 1 553 393 647 164 1 763 658 1,305 165 1 902 833 2,138 Southeastern Soil & Environmental Associates, Inc. July 16, 2009 Mr. Tom Speight Larry King & Associates PO Box 53787 Fayetteville, NC 28305 P.O. Box 9321 Fayetteville, NC 28311 Phone/Fax (910) 822-4540 Email mike 0southeastemsoil.com Re: Seasonal high water table determination (SHWT) for sediment pond areas, John Gillis tract, off Galatia Church Road (behind Lowes facility), Cumberland County, North Carolina Dear Mr. Speight, An evaluation of soil properties has been conducted at your request on the aforementioned property. The purpose of the investigation was to determine soil water table depths (SHWT) for use with sediment pond design. Soils at this site are most similar to the Gilead and Johnston soil series (see attached boring log). Three borings were advanced to at least 4 feet. Seasonal High Water Table (SHWT) as determined by evidence of colors of chroma 2 or less (and/or concentrations of high redox mottles) was encountered at varying depths (the attached chart shows boring locations and depths to SHWT). I trust this is the information you require at this time. Sincerely, Mike Eaker President ;. S S? D SOIL v C;\-\p EL D. Fq ti O c? ., SOIUSITE EVALUATION • SOIL PHYSICAL ANALYSIS • LAND USEISUBDIVISION PLANNING GROUNDWATER DRAINAGE/MOUNDING 0 SURFACE/SUBSURFACE WASTE TREATMENT SYSTEMS, EVALUATION & DESIGN + Southeastern Soil & Environmental Associates, Inc. P.O. Box 9321 Fayetteville, NC 28311 Phone/Fax (910) 822-4540 Email mike 0southeastemsoil.com Typical Soil Boring Log (Gillis Property, Galatia Church Road), Cumberland County, NC (Borings 5001 & 5003) This map unit consists of moderately well drained soils on uplands. These soils formed in clayey sediment on uplands. Slopes range from 6 to 15 percent. A - 0 to 4 inches; dark grayish brown (10YR 4/1) loamy sand; weak fine granular structure; very friable; many fine and medium roots. E - 4 to 13 inches; light yellowish brown (IOYR 6/4) loamy sand; weak medium granular structure; very friable; many fine and medium roots. Btl - 13 to 21 inches; brownish yellow (IOYR 6/6) sandy clay; weak medium subangular blocky structure; firm; slightly brittle; few medium roots; few flakes of mica; many coarse sand grains. Bt2 - 21 to 48 inches; mottles strong brown (7.5YR 5/6), brownish yellow (IOYR 6/6), and light gray (IOYR 7/2) sandy clay and sandy clay loam; weak medium subangular blocky structure; very firm; brittle, many coarse sand grains; few flakes of mica. SHWT @ 20 inches (10YR 7/2) # 5001 SHWT @ 12 inches (10YR 7/2) # 5003 SOIUSITE EVALUATION - SOIL PHYSICAL ANALYSIS - LAND USE/SUBDIVISION PLANNING GROUNDWATER DRAINAGE/MOUNDING - SURFACE/SUBSURFACE WASTE TREATMENT SYSTEMS, EVALUATION & DESIGN Southeastern Soil & Environmental Associates, Inc. P.O. Box 9321 Fayetteville, NC 28311 Phone/Fax (910) 822-4540 Email mike 0 southeastemsoil.com Typical Soil Boring Log (Gillis Property, Galatia Church Road), Cumberland County, NC (Boring 5004) This map unit consists of very poorly drained soils that formed in loamy, stratified fluvial sediment on floodplains along streams. Slope is less than 2 percent. A - 0 to 48 inches; very dark gray (10YR 3/1) loam; weak fine granular structure; friable. SHWT @ ground surface (10YR 3/1) # 5004 SOIUSITE EVALUATION • SOIL PHYSICAL ANALYSIS • LAND USE/SUBDIVISION PLANNING GROUNDWATER DRAINAGE/MOUNDING • SURFACEISUBSURFACE WASTE TREATMENT SYSTEMS, EVALUATION & DESIGN 6-1 GQ /,a 4(^ 64-" , Bo_ ring SHWT (inches) SHWT (elevation) 5001 20 164.40' 5003 12 164.18' 5004 0 159.98'