Loading...
HomeMy WebLinkAboutSW8011215_COMPLIANCE_20020409STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW za�"� DOC TYPE El CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE o2C�i'%�%H'iP9 YYYYMMDD INFILTRATION BASIN ANALYSIS PROJECT NUMBER: SW8011215 PROJECT NAME: CVS Carolina Beach DRAINAGE BASIN: CFR ' RECEIVING STREAM: Snow's Cut Index No.: SITE AREA 1.66 acres IMPERVIOUS AREA CALCULATION BUILDINGS PARKINGIASPHALT CONCRETE AREAS OTHER TOTAL % IMPERVIOUS, I= ELEVATION OF SEASONAL HIGH WATER TABLE REPORTED INFILTRATION RATE SURFACE AREAS AND ELEVATIONS FILENAME: S:IWQSIINBASINISW8011215.WK1 DATE: 09-Apr-2002 REVIEWER: nml CLASS: If ORW, is site within the 575' AEC? NO DRAINAGE AREA: 41200 SF Rational C 10880 1 23835 0.9 2000 0.9 Elev. (ft) Area, sq ft Inc. Volume Acc. Volume BOTTOM 23.2 1770 0 25 2950 4248 4248 27 4720 7670 11918 TOP 29 6900 11620 23538 VOLUME 1 DEPTH 1 DRAWDOWN CALCULATION DESIGN STORM, INCHES DESIGN VOLUME TOTAL VOLUME AVAILABLE DEPTH OF RUNOFF TIME TO DRAWDOWN 25 YEAR 24 HOUR STORM Intensity, i = .33 inches 1 hour Qr—CIA= Qp through the bottom of the basin= 10 YEAR 10 MIN HIGH INTENSITY EVENT Intensity, i = 6.3 inches 1 hour Volume for 10 yr. 10.min. event = CUBIC FEET CUBIC FEET FEET HOURS MUST BE <120 0.27 CFS 0.25 CFS Must be > Or 3039.66 CIF < 23538 CIF COMMENTS OK Volume and drawdown are (not) within Design Requirements. INFILTRATION BASIN ANALYSIS PROJECT NUMBER: PROJECT NAME: DRAINAGE BASIN: RECEIVING STREAM Index No.: SW8011215 CVS Carolina Beach CFR Snow's Cut r.' SITE AREA 1.66 acres . IMPERVIOUS AREA CALCULATION BUILDINGS PARKING/ASPHALT CONCRETE AREAS OTHER TOTAL % IMPERVIOUS, 1= ELEVATION OF SEASONAL HIGH WATER TABLE REPORTED INFILTRATION RATE SURFACE AREAS AND ELEVATIONS FILENAME: S:IWQSIINBASIN1SW8011215.WK1 DATE: 09-Apr-2002 REVIEWER: nml CLASS: If ORW, is site within the 575' AEC? NO DRAINAGE AREA: 12500': SF Rational C 11175 0.9 300 0.9 C. Elev. (ft) Area, sq ft Inc. Volume Acc. Volume BOTTOM 24 310 0 25 710 510 510 27 2010 2720 3230 TOP 28 2910 2460 5690 VOLUME I DEPTH 1 DRAWDOWN CALCULATION DESIGN STORM, INCHES 2= DESIGN VOLUME 25.:CUBIC FEET TOTAL VOLUME AVAILABLE ;:>;>5691)' CUBIC FEET STORAGE MET AT ELEVATION 26:20 FEET TIME TO DRAWDOWN :::36 7 HOURS MUST BE <120 25 YEAR 24 HOUR STORM Intensity, i = .33 inches 1 hour Qr= C i A = 0.08 CFS Qp through the bottom of the basin= 0.04 CFS Must be > Qr 10 YEAR 10 MIN HIGH INTENSITY EVENT Intensity, i = 6.3 inches 1 hour Volume for 10 yr. 10 min. event = 913.98 CIF < 5690 CF COMMENTS ok Volume and drawdown are (not) within Design Requirements. STORMWATER MANAGEMENT AND EROSION CONTROL NARRATIVE For CVS/pharmacy — Store Number #7345 U.S. Hwy. 421 (Carolina Beach Road) & Dow Road Alpha Development 5306-1.01 Six Forks Road Raleigh, NC 27609 .0 �N CARP 0 M....... li , 9 2FESSIp�`': f SEAL _ 025542 _ ;2 •,�*q, At/.ZS.01 November 2001 Prepared by: Kimley —Horn and Associates, Inc. 4607 Franklin Avenue Wilmington, NC 28403 910-792-1040 Project No. 012107000 Storm water Management and Erosion Control Narrative Project Description Alpha Development plans to construct a CVS Pharmacy at the southwest corner of Carolina Beach Road (U.S. Hwy. 421) and Dow Road (N.C. 1573) beginning in the spring of 2002. The site is currently unoccupied, but was previously occupied by "4T's" Restaurant (the foundation of the restaurant building and the gravel parking lot remain). The total site area is 1.66 acres. The tract is unevenly spaced, with approximately 200' of frontage on U.S. Nwy. 421, and 150' on Dow Road. The site improvements will include the construction of the following: • A 10,880-square foot building with drive -through window (two -bays); • Perimeter sidewalk; • 72-space asphalt -paved parking spaces (includes three handicapped spaces); • Driveway access to U.S. Flwy. 421 (including a new 100' right -(urn lane with 93' taper); • Driveway access to Dow Rd. (including 105' left -turn lane, and other improvements to Dow Rd.) Other off -site improvements include the termination of Glenn Ave. at a proposed cul-cle-sac (Glenn Ave. currently terminates at Dow Rd.), and a new right -turn lane (50' lane with 97' taper) and driveway widening at the adjacent Carolina Beach Presbyterian Church. Oil -site stormwater will be collected by five (5) catch basins and will be directed to two (2) infiltration basins at the west and north sides of the property. The basins are designed per N.C. Department of Environment and Natural Resources guidelines for quality control. The project is located within the limits of the Town of Carolina Beach. The proposed use is permitted within the current zoning (Highway Business ("HB")) and will not require any special use permits. Site Description The site (1.66 acres) was previously developed as a restaurant with gravel parking facilities. The remaining building foundation, gravel parking area, and other facilities will be demolished prior to construction of the CVS. The topography of the site consists of mostly flat terrain with slopes generally ranging from 0%n to 4%n. Elevations range from approximately 27 MSL to 30 MSL. Mlpharmacy, #7345 Page 2 of 6 KIIA Project No. 012107000 November 2001 Stormwater Management and Erosion Control Narrative Stormwater runoff for the previous development apparently drained via sheet flow to U.S. Hwy. 421. No catch basins or other stormwater collection devices are currently located on -site. Drainage from Dow Road sheets flows to the roadway shoulders and drainage from U.S. Hwy. 421 is collected by catch basins located •within the median. Soils The predominant soil type is classified as Kureb sand ("Kr") in the Soil Survey of New Hanover County (USDA SCS). Kureb sand is described as having very low organic -matter content in the surface layer, with rapid permeability. The seasonal high water table (SHWT) ranges from a depth of 7.25' to 8.30' below ground surface. The permeability is estimated to range from 2.0 to 6.0 + in./hr. (please see the attached soil report). Stormwaler Control Devices The stormwater from the proposed parking lot and drive aisles will be collected in five (5) catch basins and conveyed to one of two (2) proposed infiltration basins. The infiltration basins are designed to meet the N.C. Department of Environment and Natural Resources guidelines for quality control. Because the infiltration basins do not incorporate a by-pass, it was requested (during an on -site meeting with Linda Lewis/NCDENR on November 16"') that. the basins capture and infiltrate the first 2.0 inches of rainfall (versus the standard 1.0 inch). All piping is RCP, 12" or 15" in diameter. Flared -end sections with rip -rap outlet protection are used at each of the three discharge points. Curb and gutter is used around the parking area perimeter to contain all on -site runoff. The stormwater collection system (i.e., inlets and piping) was designed for the 10-year, 6-hour storm event and evaluated based on the 50-year storm. Please refer to the attached infiltration pond and pipe design calculations. Erosion Control Devices Erosion control devices have been designed to limit the effects of erosion and sedimentation for the disturbed area. Devices to be installed are as follows: Silt Fence — Silt fence will be installed at particular locations as indicated on the plans to trap and retain sediment on site. Mlpharmacy, #7345 Page 3 of 6 KIIA Project No. 012107000 November 2001 Stormwater Management and Erosion Control Narrative Inlet Protection Device — Inlet protection devices, either the filter fabric or block and stone type, will be installed at all proposed catch basins. Gravel Construction Entrance —Two (2) will be required as shown on the plans. Proposed Site Construction Sequence 1. Obtain all applicable permits prior to mobilization. 2. Install gravel construction entrances. 3. Install inlet protection around existing inlets. 4. Install silt fence and tree protection fence. 5. Clear and grub areas necessary for installation of erosion control measures. 6. Proceed with demolition according to demolition plan. 7. Maintain all erosion control devices throughout demolition and constrllCtloll. 8. Perform grading operations. 9. Construct permanent Stormwater control measures. 10. Install inlet protection around newly constructed catch basins and drop inlets. 11. Stabilize and seed all denuded areas and side slopes. 12. Construct new curb and gutter, paving, walks, and pedestrian plaza. 13. Install landscaping and irrigation. 14. Remove temporary sediment and erosion control devices idler construction is complete and vegetation leas been established. Mlpharmacy, #7345 Page 4 of 6 KIIA Project No. 012107000 November 2001 Storm water Management and Frosion Control Narrative Stormwater Management Maintenance Plan 1. Storm drainage pipes and catch basins shall be periodically inspected (quarterly as a mlmmum) for debris and sand build-up. They shall be cleaned as necessary to provide for the free conveyance of stormwater as designed. 2. Annual inspections must be conducted after a storm event to ensure infiltration performance. 3. Removal and reconstniction of the infiltration basin(s) will be necessary when the infiltration rate drops to unacceptable levels. 4. Permanent seeding should be maintained on the side -slopes at all limes to maintain stability of the slopes. The bottom of the basins should be free of vegetation and cleared as necessary to provide for free infiltration of stormwater. 5. See the construction plans for additional notes and details. Erosion Control Maintenance Plan 1. Construction entrance shall be installed and maintained throughout construction. Stone shall be replaced as necessary provide proper performance. 2. The general contractor will check for stability and operation of all erosion control measures following every runoff -producing rainfall. As a minimum, all erosion and sedimentation control devices shall be checked no less than once every week. Any needed repairs will be made immediately to maintain all devices as designed. 3. The sediment traps and rock dams will be cleaned out when the storage capacity has been approximately 50% filled. Gravel will be cleaned or replaced when the sediment pool no longer drains properly. 4. Sediment will be removed from behind the sediment fencing when it becomes 6-inches deep at the fence. The fencing will be repaired as necessary to maintain a sufficient barrier. CVS/pharmacy, #7345 Page 5 of 6 KIIA Project No. 012107000 November 2001 Stormwater Management and Erosion Control Narrative 5. All seeded areas (including the infiltration basins) will be fertilized, re- seeded as necessary, and mulched according to the plans and specifications to maintain a vigorous, dense vegetative cover. 6. See the construction plans for additional notes and details. Project Address CVS/pharmacy #7345 901 Dow Road Carolina Beach, North Carolina (Corner of U.S. flwy. 421 and Dow Road (southwest quadrant)) Property Owner Alpha Development 5306-101 Six Forks Road Raleigh, North Carolina 27609 (919)782-2727 Attn.. Mr. James T. Street f1 Civil Engineerinp, Kimley-Horn and Associates, Inc. 4607 Franklin Avenue, Suite 227 Wilmington, NC 28403 (910) 792-1040 Attn.. Mr. Anthony J. Giacoia, P.E. K;ICVSICVS - C13WRO)ECr MANAGFMENT�SW EC Najm ive.doc CVS/pharmacy, #7345 Page 6 of 6 KIIA Project No. 012107000 November 2001 STORMWA TER DESIGN CALCULATIONS For CVS/pharmacy South Seventeenth Street & Glen Meade .Road Alpha Development 5306-101 Six Forks Road Raleigh, NC 27609 `,I�Illlillllff�,' ARO OAN ,rqC S g Q SEAL. e 5 025542 per'.` I d G`PCi`,`,� t2-r 9.0/ RECEIVED DEC 10 2001 nwQ PRQJ # May 2001 Prepared by: Kimley —Horn and Associates, Inc- 4607 Franklin Avenue Wilmington, NC 28403 910-792-1040 Project No. 012107004 Jon CVS - Carolina Beach Designed by AIG Watershed Areas Subject Infiltration Pond and Pipo Design Job No. 12107000 Dale 03.12,02 Checked by KNA Dala 1 2 3 4 5 6 7 8 9 Sub -Area Run -oft Volume (2")' Basin # INLET Total Area IMPERV PERV % LOCATION SF ACRES SF SF IMPERV (CF) 1 8,900 0.204 8,230 670 92% 1,309 #1 2 9,700 0.223 7,750 1,950 80% 1,427 #1 4 12,600 0.287 11,475 1,025 92% 1,839 #2 6 17,700 0.406 16,835 865 95% 2.603 #1 7 4,900 0.112 3,900 1,000 80% 721 #1 TOTAL 533,700' 1.233 1 48,190 5,510 " 90% 7,899 TOTAL (acres) 1,23 IMP (acres) 1.11 PERV acres 0.13 Per NCDENR requirements and discussion with Linda Lewis on -site on November 16, 2001, collect the runoff from the first 2" of rainfall 2" Runoff Volume (Rv) determined by the Simple Method (Tom Schueler): Rv = (0.05 + .009 ( % imp.))(2")(1712")(acres)(43,560st1t acre) Calculate the Composite C value: Pavement C = 0.90 Grass/Landscape C = 0.20 Composite C = (% impervious){pavement C)+(°%pervious)(landscape C) Composite C = 0.83 Basin Evaluation BASIN #1 BASIN #2 TOTAL Drainage Area (SF) 41,200 12,500 53,700 Impervious Area (SF) 36,715 11,475 48,190 Percent Impervious 92% 90% _ Required Volume (CF)_ _89% 6,060 1,839 7,899 Infiltration Basin Volumes (Average End Method) BASIN #1 EL Z Area Volume (sf) (cf) 23.20 0.00 1,770. 0 24.00 0.30 2,260 1,612 25.00 1.80 2,950. 4,217 26.00 a 2.80 3.760: 7,572 27.00, 3.80 4,720. 11.812 28 m :, 4.80 5,770 . 17,057 29.00 5.80 6,900:. 23,392 Infiltration Basin Stage and Ora wdown BASIN #1 K_, (inlhr) 6.0 +!- 1" Volume (CF) 3,030 1' Stage (FT) 1.35 1" Elevation 24.55 1" Drawdown (days) 0.14 2' Volume (CF) 6,060 2" Stage (FT) 2,25 2' Elevation 25.45 2" Drawdown (days) 0.29 3ASIN #2 EL Z Area Volume (sf) (cf) ,.24.00 0.00 ;' 310 0 25.00 1.00 710 510 26.00 2.00 1,280 1,505 27.00 3.00 2,010. 3,150 28.60 4.00 2,91 D, "_ 5,610 BASIN #2 K_„ (infhr) 2.0 +!- 1" Volume (CF) 920 1" Stage (FT) 1.44 1' Elevation 25.44 1" Drawdown (days) 0.74 2" Volume (CF) 1,839 2" Stage (FT) 2.16 2" Elevation 26A 6 2" Drawdown (days) 1.48 Kirnley-Horn 11/29/2001 and Associates, Inc. Sheet No.1 of 1 Job CVS - Carolina Beach Subject _ InTiltration Pond and Pipe Design Job No. 12107000 Designed by AJG Date 11.26.01 Checked by KNA Date Stage -Storage Function Calculation Area Incr Vol Accum Vol(S) Stage (Z) Elev In(Z) [n(S) Z est. (sf) (cubic feet) (cubic feet) (feet) (feet) (feet) 1,770 0 0.00 23.20 0.00 2,260 1,612 1,612 0.80 24.00 -0.223 7.385 0.84 2,950 2,605 4,217 1.80 25.00 0.588 8.347 1.72 3,760 3,355 7,572 2.80 26.00 1.030 8.932 2.66 4,720 4,240 11,812 3.80 27.00 1.335 9.377 3.70 5,770 5,245 17,057 4.80 28.00 1.569 9.744 4.87 6,900 6,335 23,392 5.80 29.00 1.758 10.060 6.16 Stage -Storage - _Basin #1CD _ 00 y = 1.3439x + 7.6179 f�//�� R2 = 0.9957 (n -+- WC Seriesl Linear (Seriesl ) -0.5 0.0 0.5 1.0 1.5 2.0 In Z Determine Stage -Storage Parameters From S = KsZb »> Z = (S/Ks)"b Linear Regression Analysis (y = a + bx) b = 1.343900 a = 7.617900 Ks = (ea) = 2034 r = 0.997848 r' = 0.995700 Storm Drainage -CVS - Carolina BeachlST-STOR - Basin # 1 Kimley-Horn and Associates, Inc. Job CVS - Carolina Beach 11/29/2001 Sheet No.1 of 1 Subject Infiltration Pond and Pipe Design Job No. 12107000 Designed by AJG Date 11.26.01 Checked by KHA Date Stage -Storage Function Calculation Area Incr Vol Accum Vol(S) Stage (Z) Elev In(Z) In(S) Z est. (sf) (cubic feet) (cubic feet) (feel) (feet) (feet) 310 0 0.00 24.00 0.00 710 510 510 1.00 25.00 0.000 6.234 1.02 1,280 995 1,505 2.00 26.00 0.693 7.317 1.92 2,010 1,645 3,150 3.00 27.00 1.099 8.055 2.95 2,910 2,460 5,610 4.00 28.00 1.386 8.632 4A 3 Stage -Storage - Basin #2 10.0 - 00 s W ...lib t as a 9.0 8.0 - " y 1.7183x f 6.1944 7.0 R2 - 0.996$ 6.0 IM (A 5.0 - .. 4.0 - -+- Seriesl 3.0 - R Linear (Series l ) s 2.0 Wes: Y t i 1.0 -=....,-- 0.0- x r` 0.0 0.5 1.0 1.5 In Z Determine Stage -Storage Parameters From S = KsZ' >>> Z = (S/Ks)"' Linear Regression Analysis { y = a + bx) b = 1.718300 a = 6.194400 Ks = (ea) = 490 r = 0.998399 rz = 0.996800 Storm Drainage - CVS - Carolina BeacMST-STOR - Basin #2 r w w N a H a 0 z 0 w 0 �wR V a z a Ir cl 2 O F— U) o m ^ o cn ;n co o o o m o f 0 ca r ri N N N N N z Ln a M o O a> v N a N 04 N n N v N F C 7 J _ LL m N _ N to O� r W �°- a= 0 0 0 0 0 a _ o Ln u o >N: R m a' v ;L v cN! N •N :CV N C _ Q1 m M N o o E E o IDi= o o o o 0 o L 4 r J " a US c R R Q � m a O a H N 12 N m tL in -_- N a a m r C,? n �P 1n h N N O N N O 0 O U) 0 m am 0C)00 cv 0 0 0 0 0 O �j z,O v o +n Ur q Q 0 11 S O N N N Y U c o CNO llO m m Q> Q U 0 0 0 0 0 m m .. w m a a >co rnm u r" cU C m co CO C0 rU a0 m ID CD In U-> N U') N n E o U .J Sri �ri vi �ri +ri U m m E m m m E o a m a j N d E U C14 c r. n rn m C V wm 0 N N V co N 0 u7 E 3 � m m m d o 0 0 0 0 z - U- Q _ w M n N m m c7 D m m U 0 N N N m N 0 V O O O U] H O O O O O a a in � 7t z N F N U] a n Uj q -0 m m m U (S U7 m 0 E o u`- N a m n F- LU W U) a F- Q z C) w W C) a z a cc ❑ cc O F- N o In o N j a. O -_- lO fU t` n n• m Z r !f} h V O N to [h O� O m 0 0 7 � C N N N N N Q W - m LL - . (D O V) to J LL)H o m a`~ Cl)N P P o N o O o iL n U) = O `N' • LO cO cn 7 m -. V .Y)' �6. >N N -N::N N N QO O/ E l0 tf1 N In Or O O O O O W m t _ m LO OO m m m m O m O O m m Q (n C y a a 0 � w a m a n c N u) N N m CL 0 - o O O o O O O p O O O O O O S p U wn N c0 n V i3 Q SG Q �o m�Iq d U 0 0 0 0 0 m 7 m m ro rL - m Ui m -0 C m C N h N n N h N h N h o E o o 0 0 0 0 0 0 0 0 nQ E E �y Y Ln LO ui LO Lo u m E E In m m E o a b L m _ N j E o c �(J r N v O n N n O - O m U c v p U N I: N Ilk I!] E „ m r a 0 0 0 0 0 m z LL U U a _ m O m m€ N m O 4 N N N co N -- 0y 0� 0 N P"' Y O O O O O a a in � N � Z Z Z N c F N (n a h a(D O Q m m V O 00 J E O LL N 7 (p n H W ui a F- Z U) W 0 W 0 a Z a a: : LOL F- UD N Q l Y tO 6 1,: f-' f- h N N N N N m Z co t V O N 0 M O aD 0 m [ C4 N v N �n N v N v N H Q LLI m LL O J W h `-" Cl? O N O O N O O O 0.. ',a O ;in '� c0 fv .1�'. V:N: Ecy ` V Y N N N: �N - N O r m m m G Y N o o E .E Q N U o cn m H 0 0 0 0 0 cn ui L m ' =m 0 m m rn 0 chi N L > CD 4 (O C sT H a N (D ci7 c0 M N N N N M a � LU a c2 IL N E N to N N m 'a N C O v N 7 V O L7 0 Lo O O 1 Cl)N O 4 co N V O � y O b 0 0 0 0 0 a p U .�' � W 01 t` u'7 C7 Q Q, C) II �' a Y N r N c ]C U o u. m� amp cq rn ccU 0 O 0 0 T m m 4; .-:. 'iq U -0 C ?• 01 O F — C .- r r Itl Y N 6 a0 a0 m nO o U iT — r. m V S o_E 0 o 0 0 0 0 0 0 0 0 E F U Ln n LO Sri vi U m m E m 0 r m m E E oU aai t` } in m E w> Ln U N C O N w Lo Q a p U N : N a U7 E a ,� m I- m o 0 0 0 0 z m -- LL a N V f l n O N m co 7 p u N N N � 9 `O m (n~ v O O 0 O 0 a a Cn Z Z Z N C ~ N w Q I- Q O m Qf� m m u O m LO co r E LL F- LU LLI a ❑ //z� V cn w w 0 a z a ❑C �C+ LL LO r U) W LO L Q _ rn N N N N N N m Z Uf C 7 N .- C7 Cn O m r m > It N 11 N N a N 7 N � C Q w m� o o m — J] o m w N N N O W F a"" O O O O O a n U) h- V N r; cq > C IN N N N N c m m m .- ¢ O No0 o EEC cp n N us o EEni i E o 0 o o 0 m n s rn m m o cn o m m m m m rn m N w b in c v Q N a - u) co In co cm N N N N CO Q lul O d N N u N Lo to N m d oD (+7 u? c0 N C O �T N V n c vi O Ln O o O w CO N C7 N K O O O O O (n v o o 0 o o a p U� too _ _ m Y d o m m m m m 3 U d 0 0 O O o } n ca m cL @ T p� U W _ C 00 m m m m m m c m m m to w � U a u O 0 p 0 O 0 p O 0 M � m E „ m (p 'o a c m o N aq 0 r IDo ti I N N V �n .o E a g m o 0 z W Cl) u u @ m m 9 m m 7 O N CV m N 4 -�? O a O~ U 0. d N ¢ x Z Z Z N C 0 N (n Q n o Q U O co 11 m J O N Cp i` LL H W W !2 VJ a a 0 r Zr� V cn W M w 0 a Z a: ate a O F- [A 0 en Ln m 0 o Ln 0 a, N j Q_ F N N N N N m Z r m C N O N LO 7 m rn 0 q 0 O 7 It It 0 It IT F c N N N N N Q W _ ro Ip tL .-� O O m m O J W O m N 'I, 'a C7 O N O 0 N 0 O O An O L6 .u) co n u) r J'j. V '!N �n [O y V: v v7 .0 V D C N cj N N Q f7 y m ^ N a o m E E .E w n clam tq O cF� o 0 0 0 0 n m rn o �n o rn m m m L Q a — O m M tl �6 6 to c C1 a _ u! l0 Lq tq M F = N N N N M a 0 > W a C] d Cn N d N C N (7 Il O 0 2` O M O O N O O M O O N O O 7 O O 0 O O O O Q p U w l0 V C7 N Q d II V M N N V rn V °c mo ro m alp m aR T 3. m m 6 ^, - 'o air a � ✓a O W C O �P O �D O cp O W O 0 v .0 n E F 0 0 0 0 0 0 0 0 0 0 U E 6 ui n Ln vi U w0 F- E E V Q Q � C m cL c Q o U 61 N j d O N m O O m E 3 F It O 4 O O Ci z LL a 1° N v M n cn m m E ° o N N N m N 0 V OO O (n FO- �-' v O O O O O a a Co ar =It It Z z Z N C r N u] rn cn o Q m m _ U D M 1] pp J E O u- N D n ���ra4swr�a=xri�nx- ,.t Geotect nERI�ConOStN coon Materials,,.- SiERVIE _. .... ...,. S, LTD. Environmental .p Date: September 18, 2001 AIL' To: Anthony Giacoia, PE Kinley-Horn and Associates, Inc. Wilmington, Nort�'-Car From: W. R. (Bill) Dunlop, JrOF _, LSS Subject: Seasonal High Water Tablef1iORTM Proposed CVS Pharmacy Site Intersection Lake Park Road and Dow Road Carolina Beach, North Carolina LCS Project No. 06,9814 Background At your request we made hand auger borings in two locations for the purpose of estimating the depth of the seasonal high water table (SHWT). The first boring (SB-1) was made in the proposed location of the stormwater infiltration pond, the second boring (SB-2) was made near the northern property boundary, adjacent to the intersection of Lake Park Road and Dow Road_ Both boring locations were marked on a site plan you provided. Our findings are presented below. Hand Auger Boring SB-1 This boring was extended to a depth of about I 1 feet below ground surface (bgs). The soil texlure to a depth of 122 inches was sand_ The soil texture from 122 inches to 136 inches (termination) was loamy sand. free water was encountered at a depth of 122 inches. The estimated depth of the SHWT is 100 inches (8.3 ft., bgs). A spodic horizon (organic hardpan) about 7 inches thick was encountered at a depth of 64 inches, bgs. This soil horizon may impede downward water movement slightly. However, because it was not brittle (cemented) and because the soil layer immediately above it was brownish yellow (IOYR6/6) with no gray mottles, water movement through it is probably not impeded significantly. Hand Auger Boring SB-2 This boring was extended to a depth of about 1 I feet, bgs_ The soil texture to a depth of 122 inches was sand. The soil texture from 122 inches to 136 inches (termination) was Ioamy sand. Free water was encounter at a depth of 122 inches. The estimated depth of the SHWT is about 76 inches (6.3 ft., bgs). This is, however, a water table perched above a well developed spodic horizon found at a depth of 88 inches (7.25 fl., bgs). P.O. Box 12015, Research Triangle Park, North Carolina 27709 - (919) 544-1735 Fax (919) 544-0810 1-800-327-5832 www.ecslimited.com Offices: Baltimore, MD • Frederick, MD Aberdeen, MD - Chaniilly,VA , Winchester, VA - Fredericksburg, VA - Richmond, VA - Roanoke, VA • Danville, VA Norfolk, VA • Williamsburg, VA Charlotte, NC - Raleigh, NC - Greensboro, NC - Wilmington, NC • Greenville. SC •Atlanta. GA • Chicago, 1L Estimated Seasonal High Water Table CFS Pharmacy, Carolina Beach, NC Page 2 Estimated Hydraulic Conductivity (K, The estimated Kai is >6.0 in/hr throughout the soil profile at both boring locations, with the exception of the spodic horizon encountered in boring S13-2 at a depth of 88 inches_ The estimated K, for that soil horizon is about 2.0 in/hr. Thank you for allowing us to be of service to you with this important project. If you have any further questions, please call. Attachments: Soil Profile Descriptions Engineering Consulting Services, J ld. Estimated Seasonallfigh Water Tahle . CVS Pharmacy, Carolina Yerich, NC Page 3 Soil Boring SB-1 Depth (in) Color Texture Mottles 0-2 10YR4/1 sand 2-5 10YR5/ 1 sand 5-36 10YR7/1 sand IOYR611 streaks 3642 IOYR5/8 sand iOYR3/2, I OYR4/4 42-52 10YR6/8 sand IOYR5/6, pkis.clean sand 52-57 10YR6/6 sand IOYR5/6 streaks 57-64 IOYR6/6 sand 10YR4/3 streaks 64-71 1OYR4/4 sand 10YR3/3 71-82 2.5Y5/4, sand 1 OYR4/4 82-90 IOYR5/4 sand 10YR6/4 streaks 90-100 25Y6/4 sand 100-122 IOYR7/3 sand 122-136+ ' 2.5Y6/2 loamy %an Note:water saturated Soil Boring- S13-2 Depth in. Color Texture Mottles 0-15 IOYR4/2 fill with gravel 15-21 IOYR6/1, sand I OYR4/ 1 21-38 IOYR7/1 sand IOYR6/1 streaks 38-54 IOYR6/6 sand 10YR414 streaks 54-65 lOYR6/4 sand 10YR6/6, 4/4, 313 65-76 2.5Y6/4, sand 10YR4/3 IOYR5/6 76-88 IOYR516, sand 313, 6/2 88-96 i0YR3/2 sand IOYR5/6 96-108 10YR5/4, sand I OYR4/4 108-122 IOYR5/6 sand 122-128 2.5Y6/3 loamy sand Note: water saturated 128-136+ 2.5Y6/2 loamy sand Engineering Consulting Services. I td °`7-""'R'4 , S _ fx� "� f �` M1 � �, . iv�� �� -P,y � � :�� ��_,'. � •b �F I , E ,e' 'r Mai f� ;;� -d "'� dt+ 41fi�� CLY �• �1 ! Cs 'i 14 i.rA 1b+ v _ 41 W�-�,. e'""'` T f`J'Jj}��F ✓rdr' gyp.` - j✓Jr'4 r .�Y77 1, �' i {,��'�, �. tit 1 , 1 ip s �� 't i Ali, F['- If:43 ^•� „��, �tJ' � ,_ � a�,� i-- Sr�--�•. ''� �r 'Sx r1 ,y � ,1 �' 'ti>� {}5�_e.q �� t5 � �5 f V;�i ^. . i L. ' •�'",�'�"" '^ f_`7 �r i'.-'1� 1 y_r _ - .-' -.. C.j"+,7,.� -i J -.' ]i7 Vl t' U} ` �'��(._f i. F` -f • ice ¢ ! '•� � k. ,�/`���"`ffff��,,- � ! T. '� I �� F )- � i� -�f rr% ` �� _•,f�!'�t �.��'i- s!' T 7 B„ 9 ,.��7 s , �"- Ft''T C tw} ti' t Sro... !� +, r •{`' S ";� t, v a t'I� a ' �? '' ff�,t t�e•'< iC+�. L _�� :-" -_ �. � 1`C� M •7�, � C^,� 7 P r, ' -� �'�' Yrd'�'.�"`.' f � V. � � 4 � f.-. � . � " r� G,�� n t., .r� � � , s {. , ,, ,•,[h.' r t AT yid _ rr r� • „�`a�r r . �r k'• ''i"'•r 7 r �/� , A • MTV-F �. p.�i ; •S }' Y �J r� YyT(�� pia •�� . t` S +r' I � 'µ .t- .'h.- Lt t� 1j.rri] f N.. _ • ;,R'h' � 1" a wp +�� ; F"41 ^N�. - i�'+LL �• � � '' ` y ? � S ' j � �j.�� � • r � '� ♦ ��• ; �� i� y �w• ... A � J J-� 1. {, 1) 11 /23/2016 n 4RI D: R08814-002-001-000 ESQUIRE PROPERTIES LLC New Hanover County 901 DOW RD N Parcel Alt ID 313006.39.1768.000 Address 901 N DOW RD Unit City CAROLINA BEACH Zip Code - Neighborhood CA067 Class COM-Commercial Land Use Code 531-Retail Gen Merchandise Living Units Acres 1.6528 Zoning HB-HB Legal Legal Description Tax District Owners (On January1st) (1.65AC) TRACTS 1-5 GEORGE KARTSAKLIS DIV CB Owner ESQUIRE PROPERTIES LLC City WI LM I NGTON State NC Country Zip 28405 THE DATA IS FROM 2016 htip:lletax. nhcgov.comlpt/DataletslPrintDatal etas px?pi n= R 08814-002-001-000&gsp= PR OFI LFALL&taxyear=2016&j ur= N H &ownseq= 0&card= l &roll= R P&Stat... 111 11I231015' `' New Hanover County OARID; R06814-002-001-000 ESQUIRE PROPERTIES LLC 901 DOW RD N Commercial Card 1 Building Number 1 Structure Code/Description FDS-FDS Improvment Name CVS PHARMACY Units 1 Year Built 2002 Effective Year Built Grade B Class - Other Improvements Other Imp Value Total Under Roof 10856 Building Factor 1 Percent Complete % Percent Good 91 % Notes Other Feature Details I 1 Card 1 Int/Ext Line 1 Area 0 Measurement 1 1 Measurement 2 301 Identical Units 1 Summary of Interior/Exterior Data Card Line Number Section From Floor To Floor Area 1 1 1 01 01 9,445 1 2 1 01 01 1,411 Interior/Exterior Details 1 of 2 Card 1 Line Number 1 Section 1 From Floor 01 To Floor 01 Area 9,445 Use Group FDS Class Physical Condition G Construction 5-5 Wall Height 20 Interior Wall 2-2 Air 1-1 Plumbing 0-0 Units Functional Depr. Economic Depr, httpWetax. nhogov.com/pt/D ataletslPri ntDalalet. aspx?pin= RW814-002-001-000&9sp= COM M ERC IAL&taxyear=2016&j ur= N H&ownseq= 0&card=1 &rol l= RP&St... 112 111231Zp1Q `a New Hanover County Summary of All Other Features Card Int/Ext Line Area 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 THE DATA IS FROM 2016 hfp://etax.nhcgov.com/ptIDatalets/PrintDatalet.aspx?pin=R08814-002-001-000&gsp=COMMERCIAL&taxyear=2016&jur=NH&cwnseq=0&card=1&roll=RP&5t 2/2