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HomeMy WebLinkAboutSWA000160_Plansheet (C5.0) - Grading_Drainage Plan_20220812STRUCTURE TABLE STRUCTURE DETAILS- PIPES IN: PIPES OUT NAME: RIM = 386.84 CB-1 INV IN = 381.63 P-2, 15" CL IV RCP INV IN=381.63 P-1, 24" RCP INV OUT =380.46 INV IN = 382.25 P-1A, 24" RCP INV IN=382.25 INV OUT = 380.46 RIM = 385.45 CB-2 INV IN = 382.07 P-3, 15" CL IV RCP INV IN=382.07 P-2, 15" CL IV RCP INV OUT=381.97 INV OUT = 381.97 RIM = 385.03 CB-3 INV IN = 382.46 P-4, 15" RCP INV IN=382.46 P-3, 15" CL IV RCP INV OUT=382.36 INV OUT = 382.36 RIM = 388.38 CB-4 INV IN = 383.79 P-5, 15" CL IV RCP INV IN=383.79 P-4, 15" RCP INV OUT=383.69 INV OUT = 383.69 CB-5 RIM = 387.48 P-5, 15" CL IV RCP INV OUT=384.30 INV OUT = 384.30 CB-7 RIM = 387.37 P-7, 12" HDPE INV OUT=382.60 INV OUT = 382.60 CITY OF DURHAM STORMWATER NOTES: STRUCTURE TABLE STRUCTURE DETAILS- PIPES IN- PIPES OUT NAME: CB-9 RIM = 387.07 P-9, 12" HDPE INV OUT=382.91 INV OUT = 382.91 FES-6 RIM = 383.19 P-7, 12" HDPE INV IN=382.00 INV IN = 382.00 FES-8 RIM = 383.36 P-9, 12" HDPE INV IN=382.25 INV IN = 382.25 FES-10 RIM = 381.27 P-11, 12" RCP INV IN=380.02 INV IN = 380.02 RIM = 387.55 MH-1A INV IN = 382.47 P-1 B, 24" RCP INV IN=382.47 P-lA, 24" RCP INV OUT=382.37 INV OUT = 382.37 OS-11 RIM = 383.75 P-11, 12" RCP INV OUT=380.25 INV OUT = 380.25 HIV ?�: UZ51L-OZS-O/-O�FIJ PARCEL 130469 CROASDAILE COUNTRY CLUB INC. DEEDBOOK 1142 PAGE 270 PLAT BOOK 54 PAGE 1 ZONING: RS-10 USE: GOLF COURSE C1 - DEVELO M N N 72°50'41" E 390,39' Total � pi°Una / P°u a />, 52.86' Fou J UGE G - ch /� n 2,> 53' 1. AT A MINIMUM, THE STORMWATER DESIGN DETAILS FOR THIS PROJECT SHALL BE GOVERNED oh BY THE MINIMUM STANDARDS OF THE MOST RECENT EDITION OF THE CITY OF DURHAM pipe ° e (Dn/i e)pe O O O O REFERENCE GUIDE FOR DEVELOPMENT (RGD) AND ANY LETTERS TO INDUSTRY POSTED ON THE CITY'S WEBSITE THAT ARE IN EFFECT THE DATE CONSTRUCTION DRAWINGS ARE FIRST Tree line RECEIVED FOR REVIEW BY THE CITY. - - - - - - - 394- 2. FINAL DESIGN CALCULATIONS FOR THE STORMWATER CONTROL MEASURE(S) (SCM(S)) Curb &gutter REQUIRE THE USE OF STORAGE INDICATION ROUTING METHODOLOGY SUCH AS TR-20 OR HEC-1 MODELS. FOR EACH SCM, AS APPLICABLE, STAGE -STORAGE RELATIONSHIP AND INFLOW AND OUTFLOW HYDROGRAPHS ARE REQUIRED. ALL TABULATED DATA INCLUDING om CALCULATIONS SHOWING THE LIMITING DISCHARGE, WHETHER ORIFICE, WEIR, BARREL, OR t' OUTLET CONTROL, AS APPROPRIATE IS REQUIRED. HYDROCAD, HYDRAFLOW HYDROGRAPHS, T/C 393.66 (Go T/C 393.49 AND PONDPACK ARE COMMONLY USED AND RECOGNIZED SOFTWARE PROGRAMS WHICH o 39� INCORPORATE ROUTING METHODOLOGY ACCEPTED BY THE CITY. T/C 393.50 °sphal 3. A. STORMWATER CONTROL MEASURE(S) (SCM(S)) PERMIT FEE(S) AND A PAYMENT INTO THE I STORMWATER REPLACEMENT FUND ARE REQUIRED FOR ALL SCM(S) ASSOCIATED WITH THIS $ T/C 392.84 T/C 393.03 / DEVELOPMENT. CONSTRUCTION OF THE DEVELOPMENT IS NOT ALLOWED TO COMMENCE ° UNTIL THESE ITEMS ARE PROVIDED IN ACCORDANCE WITH CITY STORMWATER STANDARDS T/C 392.52 -T/C 392.79 T/C 392.55 OR IN ACCORDANCE WITH WRITTEN POLICY. THE DESIGNER SHALL SUBMIT A SEALED T/C 392.73 �y } / o/ � ENGINEER'S CONSTRUCTION COST ESTIMATE FOR EVERY SCM PROPOSED IN THE T/C 392.43 TIC 392.72 18 RCP 18" RCP (Approx DEVELOPMENT PRIOR TO APPROVAL OF THE CONSTRUCTION DRAWINGS IF A FINANCIAL o _ GUARANTEE IN THE FORM OF PAYMENT INTO THE STORMWATER REPLACEMENT FUND IS 392 L TIC 392.50 100' Rearvard UTILIZED. T/C 392.50 TIC 392.50 ° I T/C 392.50 B. AN AS -BUILT CERTIFICATION FOR THE STORMWATER CONTROL MEASURE(S) (SCM(S)), 180.4' PROVIDED BY THE BMP CERTIFYING ENGINEER (BCE), IS REQUIRED. THE AS -BUILT I _t� L` CERTIFICATION SHALL BE SUBMITTED IN ACCORDANCE WITH THE CITY OF DURHAM BCE <T/C 391.50 PROGRAM; REFER TO SECTION 8.6, BMP CERTIFYING ENGINEER PROGRAM FOR STORMWATER 00 ' BMPS IN THE CITY OF DURHAM REFERENCE GUIDE FOR DEVELOPMENT. THE SCM AS -BUILT m CERTIFICATION(S) SHALL BE APPROVED BY THE STORMWATER DEVELOPMENT REVIEW p� I 39A SECTION PRIOR TO ISSUANCE OF ANY FINAL CERTIFICATES OF OCCUPANCY/COMPLIANCE \ I Q T/C 391.50 S FOR DEVELOPMENT, WITH THE EXCEPTION OF WHEN AN APPROPRIATE CONSTRUCTION T/C 391.50 St4split �� SECURITY HAS BEEN PROVIDED FOR SINGLE FAMILY OR TOWNHOME DEVELOPMENT. WITH �. \ CC0 Ve/ THIS PROVIDED CONSTRUCTION SECURITY, CERTIFICATES OF OCCUPANCY/COMPLIANCE CAN PIN #: 0812-07-48-8177 0 Co �StO BE ISSUED FOR A PERCENTAGE OF SINGLE FAMILY LOTS IN ACCORDANCE WITH CITY PARCEL 130484 0° miner ne REQUIREMENTS. PAR FOUR PROPERTIES `3g0 T/C 390.50 #3ld%n9 lOI 4 C. STORMWATER CONTROL MEASUREDEED BOOK 2046 PAGE 182 S) (SCM(S)) DESIGN CALCULATIONS WILL NOT BE � PLAT BOOK 188 PAGE 371 T/C39050 Pipe Table NAME SIZE LENGTH SLOPE MATERIAL P-1A 24" 11.80' 1.00% RCP P-2 15" 33.73' 1.00% CL IV RCP P-3 15" 29.06' 1.00% CL IV RCP P-4 15" 112.01' 1.10% RCP P-5 15" 46.02' 1.10% CL IV RCP P-7 12" 42.35' 1.42% HDPE P-9 12" 21.88' 3.00% HDPE P-11 12" 23.22' 1.00% RCP i- 0�1 E p er x ire concrete �vT/C 392.37 T/C 390.74 O T/C 391 86 390.76 ` T/I 391.46 B 12�Q r390.42 T/C 391.08 -390.1 4 GRAPHIC SCALE 0 30 0 15 30 60 ( IN FEET) � Know what's below. 1 inch = 30 ft. Call before you dig. NORTH CAROLINA ONE -CALL CENTER INC. LEGEND DIAL 811 or 1-800-632-4949 2 BUSINESS DAYS BEFORE DIGGING EXISTING PROPOSED www.ncocc.org \---850 ----- \�-850 CONTOUR WITH ELEVATION XB-7460 XB7460 SPOT ELEVATION XB/C 3-7460 X61C g7460 BACK OF CURB SPOT ELEVATION X�/w B837B XTW $g37$ TOP OF WALL SPOT ELEVATION XB/w $g351 XBIW $g351 BOTTOM OF WALL SPOT ELEVATION CONCRETE CURB & GUTTER - - - - PROPERTY LINE ❑ ❑ CATCH BASIN / CURB INLET STORM DRAIN AND ENDWALL ss SS SANITARY SEWER ® SANITARY MANHOLE �co CLEAN OUT Fo4na "On Pipe W W WATER MAIN OR SERVICE LINE OH/U OH/u OVERHEAD UTILITY LINE -0, FIRE HYDRANT &-OR-�>� GATE VALVE cc__� oc_ ' POWER POLE GUY AND ANCHOR 6P CANOPY TREE TO REMAIN I GRADING AND DRAINAGE NOTES: �� 2�3O390�5 , 390'39 1. EARTHWORK QUANTITIES HAVE NOT BEEN ESTIMATED AND SITE AS SHOWN IS NOT ASSUMED TO REPRESENT A BALANCED CUT / FILL CONDITION. 390.25 f� 390.201 m 2. CONTRACTOR SHALL PERFORM HIS OWN ESTIMATE AND SHALL PROVIDE ALL 390.16 J 390.11 390.11 390.02 EARTHWORK NECESSARY TO ACHIEVE THE DESIGN GRADE, INCLUDING ANY 0 OFFSITE BORROW OR SPOILS REQUIRED. 389.82 • T/C 389.73, 389.87� 389J§ n 3. CONTRACTOR SHALL PROVIDE POSITIVE DRAINAGE IN ALL GRADED AREAS, 1389 .78 389.64 INCLUDING PAVING, LAWN AND LANDSCAPE AREAS. r] I a 0 29.8' 390.3 a 7 0 T/C 389.99 4. THE CONTRACTOR SHALL IMMEDIATELY REPORT TO THE OWNER ANY 11 p v oo ° T/CC 390.06 T/C 389.69 DISCREPANCIES FOUND BETWEEN ACTUAL FIELD CONDITIONS AND T/C 390.20 REVIEWED OR APPROVED WITH THE SITE PLAN/PRELIMINARY PLAT SUBMITTAL. ALL SCM T/C 390.50 �j� �I T/C 390.15 0 CONSTRUCTION DOCUMENTS AND SHALL WAIT FOR INSTRUCTIONS PRIOR TO CD DESIGNS WILL BE REVIEWED AND APPROVED DURING THE CONSTRUCTION DRAWING ZONING: 01 7.3' SUBMITTAL PROCESS. IF, AT THE TIME OF CONSTRUCTION DRAWING SUBMITTAL, IT IS FOUND LAND USE: OFFICE ` v ` 3g0 Two Stor � 0 0 ' . - T/C 3�0.16 T/C 389.06 PROCEEDING. THAT THE PROPOSED SCM(S) IS UNDERSIZED, NOT PROPERLY ACCESSIBLE, OR OTHERWISE )EVELOPMENT TIER: SUBURBAN ' y 1 5. CONTRACTOR SHALL VERIFY LOCATION OF ALL UNDERGROUND UTILITIES INSUFFICIENT OR UNSUITABLE FOR THE SITE, IT IS THE RESPONSIBILITY OF THE APPLICANT T/C 389.50 T/C 390.02 One Story 27.7' T/C 390.05 T/C 389.93 v TO INSURE THAT THE APPLICABLE STORMWATER ORDINANCE REQUIREMENTS ARE MET. A / v 2 T/C 389.72 c> O PRIOR TO BEGINNING WORK, BOTH PUBLIC AND PRIVATE. CONTRACTOR IS T/C 389.50 ° REVISED SITE PLAN OR PRELIMINARY PLAT MAY BE REQUIRED IF THE ORIGINALLY PROPOSED < < O L'•' n � PIN 0812-58-83-0579 SCM(S) ARE FOUND INSUFFICIENT, NOT PROPERLY ACCESSIBLE, OR UNSUITABLE AND 46 LF - 15" CL IV R @ 1.10% J # FULLY RESPONSIBLE FOR ALL UNDERGROUND UTILITIES AND SHALL REPAIR ALTERNATIVE SCM(S) WITH ASSOCIATED EASEMENTS ARE REQUIRED. 38 _ T/C 389.06 T/C 389.80 PARCEL 130467 T/C 388.18 T/C 388.88 390.02 - ANY DAMAGE AS A RESULT OF THIS CONTRACT. OT/C 387.98 T/C 389.00 T/C 389.80 T/C 389.75 310 4 C R OAS D AI LE DRIVE LLC D. THE DEVELOPER/CONTRACTOR SHALL SCHEDULE A PRECONSTRUCTION MEETING WITH - T/C 388.89 T/C 389.93� I 389.78 6. CONTRACTOR SHALL BLEND NEW EARTHWORK SMOOTHLY TO TRANSITION THE STORMWATER DEVELOPMENT REVIEW SECTION PRIOR TO COMMENCING WORK ON ANY _T/C 388.08 38 T/C 389.82 390.02 j DEED BOOK 4178 PAGE 530 T/C 388 12 t o 389 91 389.381 PLAT BOOK 115 PAGE 144 BACK TO EXISTING GRADE. STORMWATER CONTROL MEASURE (SCM). IF THE SCM WILL BE CONSTRUCTED INITIALLY AS A 4 " o ° 389.43 T/C 388.07 1 T/C 389.55 - 389.88 ZONING: N I N G: 01 SEDIMENTATION AND EROSION CONTROL (S&EC) DEVICE, TO BE CONVERTED TO A T/C 387.81 T/C 388.72' 389.72 1' m �l 389.30 7. THE PROPOSED CONTOURS AND SPOT ELEVATIONS SHOWN IN DRIVES, PERMANENT SCM AT A LATER TIME, THE PRECONSTRUCTION MEETING SHOULD BE L T/C 388.45 T/C 389.45 I 0 r. 1 V A. 389.35 SCHEDULED PRIOR TO CONSTRUCTION OF THE S&EC DEVICE. CALL 919-560-4326 EXT. 30238 T/C 388.00 -388I I �. 7jF O 0 LAND USE: OFFICE 1s, I M - p 8j� 389.65 c�l PARKING LOTS AND SIDEWALKS ARE FINISHED ELEVATIONS INCLUDING TO SCHEDULE THE REQUIRED MEETING A MINIMUM OF THREE BUSINESS DAYS PRIOR TO THE �I T/C 388.45 0 - DEVELOPMENT TIER: SUBURBAN T/C 388.39 T/C 389.17 ° 389.88' 1 A Rc r c58 IC 389.60 DESIRED MEETING DATE. THIS IS IN ADDITION TO OTHER PRECONSTRUCTION MEETING � - 389.93 390.19 c3 �L 4� ASPHALT. REFER TO PAVEMENT CROSS SECTION DATA TO ESTABLISH REQUIREMENTS FOR EROSION CONTROL, ENGINEERING INSPECTIONS, ETC. - I T/C 388.87 J 390.19 �38 46 39 CORRECT SUBBASE OR AGGREGATE BASE COURSE ELEVATIONS TO BE �T/C 388.91 ACj��i 8 4. THIS PROJECT IS A FEDERAL PROJECT (VETERANS ADMINISTRATION) AND THUS HAS A DUAL I T/C 387.50 T/C 388.71 390.12 COMPLETED UNDER THIS CONTRACT. REVIEW. THE CITY OF DURHAM IS DOING A COURTESY REVIEW OF THE NUTRIENT DATA BASED o o 8. ALL "STD." NUMBERS REFER TO THE NCDOT STANDARDS. T/C 389.80 ° T/C 389.30 ON CONVERSATIONS BETWEEN THE CITY OF DURHAM PLAN REVIEWER, DESIGN ENGINEER T/C 389.80 389.34 AND THE STATE PLAN REVIEWER. ANY COMMENTS THAT THE STATE HAS OVERRIDE THE CITY 387�/� ca 389.90 OF DURHAM COMMENTS ON THIS SUBJECT. � 9. ON -SITE BURIAL PITS REQUIRE AN ON -SITE DEMOLITION LANDFILL PERMIT co a T/C 387.50 0 388.91 \ < - 388.86 FROM THE ZONING ADMINISTRATOR. 388.81 388 76' 10. PIPE LENGTHS SHOWN ARE THE ENGINEER'S ESTIMATE USED TO COMPUTE A n a "'J PIPE SLOPE AND INVERTS AND SHALL NOT BE CONSTRUED BY THE I� u_ -Nj d'> TIC 386.50 I I 388.53 388 47i 388 CONTRACTOR TO REPRESENT THE ACTUAL QUANTITY OF PIPE REQUIRED. z 3g6\�386.50 \ \ T/C 388.66 }% cr)388.76 390.30 390.30 388.78 388.43 Asphalt 11. MAXIMUM CROSS SLOPE OF SIDEWALKS SHALL BE 1/4" /FT. �' T/C 385.50 389.50 18"° 390.30 389.60 TIC 388.88 T/C 388.85 T/C 38 12. SLOPES SHALL BE GRADED NO STEEPER THAN 3:1 WITHOUT ADDITIONAL J o D T/C 388.48 ��� T/C 388.41 388.28- �89 ° I I �g .84 388.70 oo� ao� 388.74 T/C 390.12 388.85 STABILIZATION MEASURES AND PRIOR APPROVAL. T/C 385.62 40 T/C 385.7486 28\ r ` 388.22 e 390.12 ° DB ;16°,4 PG' 2�" o° Q T/C 388.61 a 388.78 ° T/C 388.57 13. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT 385 2'tF- 15"CL�VRCP@1.0 39 °� 388.68 T/C 388.65 T/C 388.40 PROPERTIES. WHEN FIELD CONDITIONS WARRANT OFF -SITE GRADING, - O I T/C 385.53 T/C 385.49 T/C 385.53 T/C 388.23 �8� T/C 390.08 ' °T/C 390.10 T/C 388.52 T/C 390.10 T/C 388.64 _ PERMISSION MUST BE OBTAINED FROM THE AFFECTED PROPERTY OWNERS. T/C 385.44- T/C 385.84 ��'� 12 LF - 24" RCP @ 1.00% T/C 390.10 388.28 T/�C 389.81 n�0� ch 388 22 $� T 388.38 14. ALL STORM PIPE ENTERING STRUCTURES SHALL BE GROUTED TO ASSURE T/C 384.50 gSplla/t �d'o� T/C 387.50 T/C 389.80 388.44 Mom' T/ T3C 388 3 T/c 388.40 oo> 82T/C CONNECTION AT STRUCTURE IS WATERTIGHT. T/C 385.18 z c T/C 385.40 mod' - B-9 22 LF - 12" HDPE @ 3.00%- 388 389 T/C 388.38 T/C 387.25 15. ALL STORM SEWER MANHOLES IN PAVED AREAS SHALL BE FLUSH WITH \34 LF - 15" CL IV RCP @ 1.00�0 3 29 - °. - - - - 386 387 \ ' T/C 387.13 PAVEMENT, AND SHALL HAVE TRAFFIC BEARING RING AND COVERS. T/C 383.87 Curb & gutter I �_ ° - FES-8' - 385 < - - - - -T/C 388.15 T/C 388.19 - ` ° - T/C 387.54 MANHOLES IN UNPAVED AREAS SHALL BE 6" ABOVE FINISH GRADE. LIDS SHALL � - - - T/C 385.00 n - - - - - -' " ° - - ° 1 42 Lo8J T/C 387.43 "STORM i i on re e ewal - I T/C 384.82 12' HOPE_%86 387.42� O BE LABELED SEWER". _ �_�_-"------___„ _ 16. RIM ELEVATIONS OF CURB INLET EQUALS THE FLOW LINE OF GUTTER PAN, NOT .0 - o - _ �- 0= oD ----_ OS-1 _y ro \- o '<o \\=1 I - - sign _ Q THE DEPRESSED ELEVATION AT THE INLET. ni T T ° - _ o 17. ALL PROPOSED CONTOURS IN ALL "FILL" AREAS SHOWN ON THIS PLAN z 42 FESp 23 LF - 12" RCP @ 1.00 /°� O ,� - - - - - ``' F °Und REPRESENT COMPACTED STRUCTURAL FILL AND SHALL BE CONSTRUCTED T r SS �C- T S e - '' - - con cr - - - - e sinvm4k- - - /won /„ - P WITH SATISFACTORY MATERIAL COMPACTED TO THE STANDARDS OUTLINED IN S S F�7`C -381 T 80 1 0' 24" RCP Rip - - Rap THE SPECIFICATIONS. T � � L - T CLEAN OUT END OF CULVERT - ram`?- � G ~- � -� (` C: -� C 18. RCP PIPES SHALL BE CLASS III RCP UNLESS OTHERWISE NOTED. D _ EXISTING FO Fn/C �� SS SS SS ss 19. ALL STRUCTURES AND GRATES SHALL BE COMPLIANT WITH THE MOST RECENT FIRE HYDRANT - EXISTING PUBLIC PROPOSED SCM ACCESS NCDOT STANDARDS AND BE TRAFFIC BEARING AND RATED HEAVY DUTY, j6" CIP WATER LINE AND MAINTENANCE EASEMENT UNLESS LOCATED OUTSIDE OF A PAVED AREA. W W EXISTINGPUBLIC EXISTINGPUBLICLINE CLEAN OUT END OF CULVERT - D W -�7-0 W BLIC SEWER 12" CIP 20. ALL HDPE PIPE SHALL BE ADS N12 TYPE S OR APPROVED EQUAL. - W 9 FLF�N�RgNM W -W W W 21. ALL FILL SHALL BE PLACED IN MAXIMUM 8-INCH LIFTS AND COMPACTED. ALL 3834g' �A''E W W W DRIVE W W w W W W �fiN �W W W FILL OF PAVEMENT SHALL COMPACTED n WITHIN LIMITS BUILDING AND AREAS BE (NORTH 1-85 SERVICE ROAD) TO 100% STD. PROCTOR DENSITY WITHIN THE TOP 24 INCHES AND A MINIMUM D VARIABLE WIDTH R/W 98% STD. PROCTOR DENSITY BELOW 24-INCH DEPTH. FILL WITHIN LANDSCAPED (PART OF I-85 R/W) Y AREAS SHALL BE COMPACTED TO MINIMUM 90% STD. PROCTOR DENSITY. L z REFER TO GEOTECHNICAL ENGINEER'S REPORT FOR ADDITIONAL EARTHWORK L SPECIFICATIONS AND REQUIREMENTS. r C; SMUP ENGINEERS PLANNERS SURVEYORS SCIENTISTS CES Group Engineers, LLP NC FIRM LICENSE #F-1240 274 N. Hwy. 16, SUITE 300 DENVER, NC 28037 T 704. 489.1500 www.ces-group.net SEAL- \``k%11I1'till,� CfRO<i''% �•``�Q�� ?O oFSSS/ AL $ - 041342 $ - -",,A/M. co l\ I SUBMITTALS DATE: PURPOSE: 12/01/2021 75% VA SUBMITTAL 12/28/2021 100% VA SUBMITTAL 02/07/2022 FIRST PERMIT SUBMITTAL 04/21/2022 SECOND PERMIT SUBMITTAL 7/19/2022 THIRD PERMIT SUBMITTAL � � O _ ti ti 0 oQ o� - J U z Uc JJ U W = Q Q = _ >_ O p J - IY L0 2 LLI U-) Q LLI W p > r` U m v w < Q � 00 0 1-- 0 w z - D_-_ w � W J_ o v}a � 5 G Q J < Q J> U) Q LU m 0 I- vZ Ln U M PROJECT NO: 7768 - 1021 CD DRAWING REVISIONS NO: REVISION DESC. DATE: 1 CITY COMMENTS 04/21/202 3 CITY/NCDEQ COMMENTS 7/19/2022 DRAWN BY: SC REVISED BY: SC CHECKED BY: DL I ISSUED BY: SC DRAWING TITLE: FINAL GRADING PLAN DRAWING NUMBER: ■ Y )pyright 2021 CES Group Engineers, LLP