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Home My WebLink AboutSW8051026_COMPLIANCE_20051116STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW..8��Y' DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD INj16TR,ATION_TRENCH ANALYSIS Filename S IWPDATAIWQSIINTRENCH1051026-1 Project # SW8 051026-1 Project Name Bogue Pines, LLC Mini -Storage Recvng Stream Bogue Sound Drainage Basin White Oak Site Area 2 04 acres Impervious Area Calculation Buildings 14000 Streets 16289 OS Prkg 3132 OS sidewalks 244 Total 33666 Volume/Storage Calculation If Rational Method is used, place a 1 in this box 0 Required Provided Design Storm RV Volume to Store Pipe Diameter Length Of a Single run of Pipe Number of Pipe Runs in Trench Storage In Piping Total Storage in Piping Cross -Sectional Area Of Pipe Runs Length Of Trench Width Of Trench Height Of Trench Cross -Sectional Area Of Trench Voids Volume, 40% Total Voids Volume Total Volume Provided Elevation Of Bottom Of Trench Elevation Of SHWT Overflow Elevation Exfiltratron Rate / Drawdown Reported Hydraulic Conductivity Bottom Surface Area Drawdown Time 25 YEAR 24 HOUR STORM N/A Intensity, i = 33 inches / hour Qr=CiA= Qp through the bottom of the basin= 10 YEAR 10 MIN HIGH INTENSITY EVENT Intensity, i = 6 3 inches / hour Volume for 10 yr 10 min event = Date 16-Nov-05 Reviewer P Bartlett Classification SA, ORW Index # 20-36-(0 5) Drainage Area 35,763 SF 0 82 Acre Rational Cc (list C after each BUA) 095 095 095 095 % Impervious= Cc: 090 1 5 in 090 4011 C F 94 1 % Pipe Size i Pipe Size 2 2 Feet 715 Feet 1 each 2246 0 Cubic Feet 224$ Cubic Feet 3 142 0 000 SF 715 Feet 6 Feet 2 ✓ Feet 1200 000 SF 2$34 0 CIF 2534 CIF 47$$ Cubic Feet 0 24 CFS 0 5005 CFS 2791 57 CIF < vs- 4ar4 �er 30 Mean Sea Level 28 Mean Sea Level 32 Mean Sea Level 0 42 Cubic Feet Per Hour Per Sq Ft 4290 0 Square Feet 2,23 hours Must be > Qr 4780 CIF IN AILTRITION TRENCH ANALYSIS Filename S 1WPDATAIWQSIINTRENCH1051026-2 Project # SW8 051026-2 Project Name Bogue Pines, LLC Mini -Storage Recvng Stream Bogue Sound Drainage Basin White Oak Site Area 2 04 acres Impervious Area Calculation Buildings 1'2400 Streets 19342 OS Prkg 2949 OS sidewalks 125 Total 34816 Volume/Storage Calculation If Rational Method is used, place a 1 in this box Required Provided Design Storm RV Volume to Store Pipe Diameter Length Of a Single run of Pipe Number of Pipe Runs in Trench Storage in Piping Total Storage in Piping Cross -Sectional Area Of Pipe Runs Length Of Trench Width Of Trench Height Of Trench Cross -Sectional Area Of Trench Voids Volume, 40% Total Voids Volume Total Volume Provided Elevation Of Bottom Of Trench Elevation Of SHWT Overflow Elevation Exhitration Rate / Drawdown Reported Hydraulic Conductivity Bottom Surface Area Drawdown Time 25 YEAR 24 HOUR STORM NIA Intensity, i = 33 inches / hour Qr=CiA= Qp through the bottom of the basin= Date Reviewer Classification Index 4 Drainage Area 16-Nov-05 P Bartlett SA, ORW 20-36-(0 5) 35,763 SF 0 82 Acre: Rational Cc (list C after each BUA) 095 095 095 095 % Impervious: 97 4% Cc 093 1 5 in 093 4140 CF Pipe Size I I Pipe Size 2 2 Feet 737 Feet 1 each 2315 0 Cubic Feet 231a Cubic Feet 3 142 0 000 SF 737 Feet 6 Feet 2 Feet 1200 000 SF 2$11 CF 2611 CF 4027 Cubic Feet 025 CFS 0 5159 CFS Vs 41-7g Pf T 30 Mean Sea Level 28 Mean Sea Level 32 Mean Sea Level 0 42 Cubic Feet Per Hour Per Sq Ft 4422 0 Square Feet 2.23 1 hours Must be>Qr 10 YEAR 10 MIN HIGH INTENSITY EVENT Intensity, i = 6 3 inches / hour Volume for 10 yr 10 min event = 2876 29 CF 4927 CF Mar 1$ 2(t`3 8 50AM STROUD ENGINEERING P A INFILTRATION SITE VISIT REQUEST Name of the Project: BOGUS PINES, LLC T Location (attach a clear vlcino map) Hwy 24 Newport, NC Street address SR number, community etc No 1458 P 1 IN Directions from the nearest major intersection- From the intersection of Hwy 24 and Hwy 70, Morehead City, Carteret County, take Hwy 24 West towards Swansboro for approximately 8 0 miles The project site will be located on your right at the corner of Hwy 24 and Spruce Pines Drive (The site is located 0 28 miles east of the intersection of Hwy 24 and Nine Mile Road) Owner/Applicant Name: Bogue Pines Mobile Home Park LLC, David G Bradley Consultant Name: Ronald D CulliphEpr, Stroud Englneenng P A Consultant Contact Information (252) 247-7479 / (252) 247-4098 /rcull,uherAgtroudengtneer com Phone fax email Existing ground elev. @,basin/trench= , Bottom Elev. of infiltration baslnitrench= Existing ground minus bottom elev = Add 2' (max. bottom elevation)= Date/Time of Soils Investigation 3 / z-2 Summarize results of Investigation �i '_ / If44A ",� 46 #1 #2 #3 #4 #5 #6 #7 32 0' 31 0' 270' 270' 50' 40' 70� 6 OjLi� Please have all basins and existing, a4tive utility Ines located within the proposed basin/trench areas marked If these areas are not marked, the Soils Scientist reserves the nght to decline to do the investigation The soils investigation does not take the place of a soils report prepared by an appropriate professional The Soils Scientist will only verify the soil conditions that are reported in the required Soils Report, and assumes no liability should the system fail Mar 18 2005 8 53AM No 1458 P 3 STRODD EWN'IEERING P A �r ~Lt A T . 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S. r. i" 4i�,',i�` T 1 - N• XrAn : a �l �V:`_ �t .f {r h {v - -''•'} �ti i�l� y.. r� J• rr �r 7yt �4�.'J'>i tt •�r�K--��wr•w•�•�•�•�•W•••� ."muu,u Jvin"U� MUI rLFaw vot.T-----jfnUll 5CAle A IYZIRI LFHAU IJ-4 VArklM WUNN dAmzww� E9( Inc. ownwawmen4d s,ud&n& W got VIAW AX ,2522 ge-1 99Q-rl52-QQQ9 9Zo&,t Y ✓ o,d 7153 . �3/r 5P1g5lzen..idi'acacaan �icu� r' iwne� DATE September 20, 2004 Nov o 9 �oo� 99a,& Y4 2-pwney Aiwi" Clj&e Aih 3$05 %(le�itbv & .Si nas SUBJECT Land & soils evaluation of the David Bradley Broad Creek Tract (-2 acres) to determine usability with infiltration stormwater treatment usage Tract located on the north side of NC Hwy 24, adjacent to Bogue Pines Mobile Home Park, Broad Creek area, Carteret County, NC PIN # 6326-03-11-6940 TO Mr David G Bradley 3014 Circle Drive Morehead City, NC 28557 (252) 727-9322, 247-7192 [fx], 240-9799 [m] The land & soils within the David Bradley Broad Creek Tract (--2 acres) were evaluated to determine potential suitability for on -site infiltration stormwater treatment usage NCDENR-DWQ "Stormwater Management" rules and regulations (NCAC 15-2H- 1000) were used as guidelines in making this evaluation When the proposed protect is greater than 1 acre in size, has >25% impervious surfaces, is within 1/2 mile of, and/or drains directly to Class S A Waters or their unclassified tributaries, stormwater must be treated by infiltration basins or an equivalent alternative method This tract appears to be geographically located less than1/2 mile from Class S A and/or drains to an un-classifted tributary to S A Waters (see USGS topo map) Thus, it appears this tract should have stormwater treatment through an infiltration systems or equivalent method This tract is located on a sandy ridge that has been historically landscaped and leveled with slopes of 0-2% Elevations range from —30 ft to 35 ft (amsl, see USGS map) The tract consists of moderately well to well drained natural sandy soils Hardpans (spodic horizons) may be encountered at relative deep depths (+40") along the eastern portions of the tract Principie soil and site requirements for an infiltration system are ---the infiltration system's bottom must be 2 ft or greater from the seasonal high water table, ---must be capable of complete draw - down within 5 days, ---the soil's hydraulic conductivity must be >0 52 in/hr, ---recent (>1977) fill material is not usable, ---historic fill materials (<1977) can be used if it meets the minimum site criteria stated above The enclosed land & soils map shows the various land/soil types found (see soils map) The following are brief descriptions of these land & soil types for stormwater infiltration usage The "Green" Areas (see soils map) are well drained, sandy natural soils These soils have an estimated seasonal high water static water table +55 to 75 inches from the present surface based upon soil wetness indicators Estimated permeability is <6 - 12 min/in (+5-10 in/hr) to +70" ✓ depths These soil types should be considered as usable for infiltration stormwater systems with bottoms +2 5 - 4 0 ft into the existing ground surface pending location Soil types found are Baymeade and Kureb Page I of The "Yellow' Areas (see sods map) are moderately well to well drained, sandy natural soils These sods have an estimated seasonal high water static water table +36 to 50 inches from the present surface based upon soil wetness indicators Estimated permeability is <6 - 12 min/in (+5-10 inlhr) to +70" depths These soil types should be considered as usable for infiltration stormwater systems with bottoms +1 0 - 2 0 ft into the existing ground surface pending location Soil types found are Baymeade, Rimini, and Seabrook The "Brown" Areas (see soils map) are moderately well drained, sandy natural sods These sods have an estimated seasonal high water static water table +24 to 36 inches from the present surface based upon soil wetness indicators f Estimated permeability is <6 - 30 min/in (+2-10 inlhr) to +70" depths These soil types should be considered as usable for infiltration stormwater systems with man-made sidewall berms and with bottoms at the present ground surface to 1 0 ft into the existing ground surface pending location Soil types found are Leon -dry phase and Rimini This report and maps should be used for general planning and design purposes Careful planning and engineered design should be exercised to insure the usable soil areas are reserved for stormwater infiltration treatment, and relatively preserved in their natural state NCDENR-DWQ Stormwater Section should be contacted for a their reviews, approvals, permits, and concurrence of the proposed development and stormwater management system before initiating any development activities Sod logs can be provided upon request Lary F Baldwin, CPSSISC ARCPA,CS #2183, NCLSS #1040 Page 2 of LAND & SOILS MAP . THE DAVID BRADLEY BORAD EEK TRACT (w2 acres) FOR POTENTIAL STORMWATER INFILTRATION TREATMENT USAGE Broad Creep Area - Carteret County - North Carolina PIN #6326-03-11-6940 (Mobile Home Park) _`.� L—Y-j NC ",Igh N3124 -Co move t�l ich = 100 Feet iced & approx) BER - 2004 I.� Suitable well drained soils for stormwater infiltration usage with bottoms 2.5-4.0 ft into existing ground surface. Estimated seasonal high static water table +55-75". Estimated permeability +5-10 in/hr (<6-12 minlin). Baymeade and Kureb soil types. Tract has been historically leveled. I �1 Suitable well to moderately well drained soils for storm water infiltration usage with bottoms 1-2 ft into existing ground surface. Estimated seasonal high static water table +36-50". Estimated permeability +5-10 in/hr (<6-12 min/in). Baymeade, Rimini, and Seabrook soil types. Tract has been historically leveled. Suitable moderately well drained soils for storm water infiltration usage with bottoms at 0-1 ft into existing ground surface and man-made sidewall berms. Estimated seasonal high static water table +24-36". Estimated permeability 2-10 inlhr (<6-30, min/in). Leon -dry phase and Rimini -wet phase soil types. Tract has been historically leveled. �Q 501 L SO4 Land Management Group, Inc. I