DESIGNER SUPPLEMENTAL INSTRUCTIONS DSI NO. MCA-DSI-0018 DATE: 09/15/2016 PROJECT NAME: NOAB Project # 8910-01233 Louis Armstrong New Orleans International Airport North Terminal Development Program Phase 1 Note: if the following information is deemed to have an impact on GMP Price or time, submit a proposal for Owner approval before proceeding with this DSI. If approved by Owner, the resulting contract change will be incorporated in the next formal Change Order. Revised drawing UP P 6001, issued in response to RFI 00847. Cost impact: Potential cost increase. Attachments: Partial sheets: Reissued full sheets: UP P 6001 By: Brian Miller
R E Q U E S T F O R I N T E R P R E T A T I O N From: Dean Schuerman To: Cedric Johnson CC: Daniel Taylor, David Daileda, Jason Levy, David Zelig, Sara Delahoussaye, Raymond Symanski. Greg DeCoursey, Carlos Giron, Brian Miller, Chad Blanchard RFI 00847 From Cedric Johnson To Dean Schuerman CC Cinda Denoux, Daniel Taylor, Jason Levy, Raymond Symanski, Scott Rydin, Cedric Johnson, Cindy Shields, David Daileda, Kiet Vo, Sara Delahoussaye Project North Terminal Project - NOLA (MSY) Construction Subject 5_UP P 6001_CUP_Diesel Fuel-Oil System Subject: 5_UP P 6001_CUP_Diesel Fuel-Oil System Date Required: 2016-09-07 Cost Impact: Potentially Cost Amount: Question: Mechanical is being asked to provide the diesel fuel-oil supply and return pumps as specified in electrical 26 32 13 Para; F.3 & F.4., and while procurement and selection of the pumps, arose concerns by the fuel-oil pump manufacturers with the long suction line that we now have due to the CUP being relocated. To mitigate this concern, the fuel pump manufacturer recommends the following changes to the fuel-oil piping to be incorporated to drawing UP P 6001: Suggestion: Answer: 1. Instead of drawing from the top of the tank, the fuel supply line should come from the side of the tank near the bottom, drawing from the balance line between the two tanks (tank #2 by owner). The tank will sit on pedestals that should be about 3ft tall, and the saddle is 6" tall. If drawn from the tank near the bottom, we should be able to run the pipe over the containment wall or offset slightly up and over. 2. Uncertainty if a mechanical anti-siphon valve will work, it may require installation of a solenoid operated valve that is normally closed and would open if any of the pumps came on. This would require a control panel in the CUP which receives input from each pump and a signal wire from the CUP to the valve at the tank. It would require signal wires running from the CUP to the fuel tanks. 3. NFPA requires that the bottom 5% of the fuel in the fuel tank be unusable. That would require the nozzle for supplying the line to be 1 - from the bottom of the tank. 4. These are subtle changes, and we do not believe any of these changes would affect the SFM review. Would it be acceptable to proceed with these recommendations in order for us to begin procurement and selection of these fuel-oil pumps? If so, we ask a DSI to be issued to reflect the recommendations since it may affect other scopes of work. NOTE: An RFI response cannot change the requirements of the Contract Documents. Response By: Greg DeCoursey Date: 09/16/2016 CCAT Response: It is acceptable to proceed with contractor s recommendations Refer to MCA DSI 0018 Cost Impact: none Pursuant to paragraph 4.2.14 of the General Conditions of the Contract, the Engineer of Record provides the following response to the referenced RFI. This RFI response does not constitute a Construction Change Directive, and does not authorize changes in project scope, contract price or time. Refer also to Article 7 of the General Conditions and for AIP work to Article 50-16 of the FAA General Provisions. RFI s are to be returned for reconsideration if there is a cost or schedule impact.
A. GENERAL NOTES THE GENERAL PROVISIONS OF THE CONTRACT APPLY TO THE WORK SPECIFIED IN THESE NOTES. PROVIDE ALL NEW MATERIALS, LABOR, TOOLS, EQUIPMENT, TRANSPORTATION, INCIDENTALS, AND SERVICES NECESSARY FOR THE COMPLETE INSTALLATION ON EVERY RESPECT AND THE SATISFACTORY OPERATION OF ALL SYSTEMS AS SPECIFIED BELOW OR AS SHOWN ON DRAWINGS. NORTH TERMINAL LOUIS ARMSTRONG NEW ORLEANS INTERNATIONAL AIRPORT DIKED AREA WITH 60,000 GALLON CONTAINMENT VOLUME AND 1 FREEBOARD. REFERENCE UP S 1113 & UP A 5002 FOR DETAILS CONTAINMENT SIZING AND ASSUMPTIONS 42'X70' INSIDE-TO-INSIDE OF DIKE WALLS, DIKE WALL HEIGHT: 3'10 - CONTRACTOR TO PROVIDE FINAL SIZING FOR CONTAINMENT AREA BASED ON ACTUAL TANKS PURCHASED AND INSTALLED. ASSUMPTIONS: CONTAINMENT FOR (1) TANK RUPTURE TANKS: 14'DIA X 63' LONG; ~60,000 GALLONS TANK PEDESTALS: 14'L X 18 W X 2'6 T; 2 EACH TANK TANK SADDLES: 6 BOTTOM OF SADDLE TO BOTTOM OF TANK 12 FREEBOARD 3% ALLOWANCE FOR PIPING AND MISC. ITEMS OVERFILL/LOW LEVEL ALARM MONITORING PANEL (SEE NOTE E) WEATHERPROOF JUNCTION BOX TO MONITOR PANEL NORMAL TANK VENT EMERGENCY VENT MECH. TANK LEVEL GUAGE MORRISON BRO. MODEL NO#818 OR APPROVED EQUAL MANWAY PANEL B NOTE: EACH FUEL SUPPLY MUST SEND A SIGNAL TO PANEL A WHEN RUNNING. DSI-0018 PANEL A WILL SEND A SIGNAL TO PANEL B IF ANY COMES ON. PANEL B WILL THEN CAUSE THE ELECTRICALLY POWERED SOLENOID OPERATED TO OPEN. FAILS CLOSED WHEN NOT OPERATING. B. C. D. E. F. G. H. I. J. K. L. M. ALL MATERIALS AND WORKMANSHIP SHALL COMPLY WITH ALL APPLICABLE SECTIONS OF LOCAL, MUNICIPAL, PARISH, STATE, FEDERAL, INDUSTRY AND UTILITY COMPANIES RULES, REGULATIONS, CODES, ORDINANCES, AND STANDARDS INCLUDING NFPA 30 AND NFPA 110. MAIN FUEL TANK SHALL BE CYLINDRICAL SINGLE WALL STEEL, 60,000 GALLON CAPACITY, ABOVE GROUND TANK FOR DIESEL FUEL; UL142 LISTED. PROVIDE ANTI-SIPHON PRIMARY AND EMERGENCY VENTS, IN ACCORDANCE WITH NFPA. ALL PIPING CONNECTIONS TO TANK SHALL BE MADE ABOVE THE NORMAL MAXIMUM LIQUID LEVEL. PROVIDE MECHANICAL OVERFILL PREVENTION FOR MAIN FUEL TANK, SINGLE ACTION SHUT-OFF TO AUTOMATICALLY STOP DELIVERY OF LIQUID WHEN LEVEL IN TANK REACHES 95 PERCENT OF CAPACITY, OPW 61S OR APPROVED EQUAL. PROVIDE ABOVE GROUND TANK DIGITAL MONITORING SYSTEM TO MONITOR TANK LEVELS. TANK MONITORING SYSTEM SHALL BE VEEDER-ROOT MODEL TLS-300 TANK LEVEL MONITOR WITH ONE (1) VEEDER-ROOT #8473 MAG 1 TANK PROBE AND INSTALLATION. SEE DRAWING UP M 1111 FOR LOCATION. PROVIDE ALL RELAYS AND ENCLOSURES REQUIRED. LOW VOLTAGE WIRING TO SENSORS AND PROBES SHALL BE PROVIDED UNDER THIS DIVISION. CONDUIT FOR CONTROL WIRING SHALL BE PROVIDED UNDER DIVISION 16. PANEL SHALL PROVIDE CONTINUOUS LED READOUT OF LIQUID LEVEL IN MAIN TANK GIVEN IN GALLONS. PANELS SHALL ALSO PROVIDE DISTINCT ALARM SIGNALS AS FOLLOWS: HIGH LEVEL ALARM AT 90 PERCENT OR GREATER LEVEL OF MAIN TANK NOMINAL TANK CAPACITY. LOW LEVEL ALARM AT MIN 20 PERCENT OF MAIN TANK NOMINAL CAPACITY, ADJUSTABLE BY THE OWNER. FURNISH AND INSTALL AN AUDIO/VISUAL ALARM WITH ACKNOWLEDGMENT SWITCH, VEEDER-ROOT SERIES 8485 OR APPROVED EQUAL, WITH ADJUSTABLE PEAK DBA, AT 10 FEET, MINIMUM HORN, AND LIGHT, 120 VAC. LOCATION ALARM DIRECTLY ABOVE TANK FILLING SYSTEM. PROVIDE LAMINATED SIGN BELOW ALARM READING "FILL LEVEL ALARM". CONDUIT AND WIRING INSTALLATION UNDER DIVISION 16. REMOTE TANK FILLING SYSTEM SHALL BE SIMPLEX MANUAL "FUEL PORT" FFP3 OR APPROVED EQUAL WITH FILL FITTING, & POST ASSEMBLY. I LOCKABLE, WEATHERPROOF BOX, PAINTED WHITE, WITH GROUNDING PROVISION. MOUNT ON THE CONCRETE PAD. DIESEL FUEL LINE INSTALLATIONS - THE CONTRACTOR MUST INSTALL ALL NEW FUEL LINES. THE NEW FUEL LINES SHALL BE AS INDICATED IN SPECIFICATIONS. CONTRACTOR MUST INSTALL ALL NECESSARY SUPPORTS FOR NEW FUEL LINES. WEATHER PROOF AND CORROSION PROOF FLEXIBLE FITTING SHALL BE INSTALLED AT POINT OF ENTRY OF GENERATOR HOUSING. ALL FUEL LINES SHALL BE FLUSHED AND CLEANED PRIOR TO FILLING TANK AND FUEL LINES. FUEL LINES SHALL BE BLACK IRON PIPE. FURNISH AND INSTALL MECH. TANK LEVEL GAUGE, MORRISON BROS. MODEL NO. 818 OR APPROVED EQUAL. TEST FUEL OIL PIPING ACCORDING TO NFPA 30. TEST AND ADJUST CONTROLS AND SAFETIES. REPLACE DAMAGED OR MALFUNCTIONING CONTROLS AND EQUIPMENT. REMAKE JOINTS AND CONNECTIONS USING NEW MATERIALS. BEFORE ACTIVATING SYSTEM PERFORM THESE STEPS: PROJECT ADDRESS KENNER, LOUSIANA ZIP Owner KEY PLAN THE NEW ORLEANS AVIATION BOARD THE NEW ORLEANS AVIATION BOARD, 900 EAST AIRLINE DRIVE, KENNER, LA 70062 CRESCENT CITY AVIATION TEAM A JOINT VENTURE 1 GALLERIA BOULEVARD #1516 METAIRIE, LA 70001 T (504) 303.7535 / F (504) 841.2229 OPEN S TO FULL OPEN POSITION AND CLOSE BYPASS S. 1 UNION REMOTE FILL ABOVE GRADE (SEE NOTE I) 6" DROP TUBE (AUTOMATIC TANK GAUGING) MAGNETOSTRICTIVE PROBE OVER FILL PREVENTION 60,000 GALLON TANK TANK SUPPORT 1'- PIPE THRU CONCRETE WALL WITH PIPE SLEEVE AND CHEMICAL RESISTANT NON-SHRINK GROUT BALL WITH LOCKABLE HANDLE EQUAL TO FLOW-TEK F15-2-R-10-3-J-R-L EMERGENCY VENT THROUGH WALL WITH BUG SCREEN NORMAL VENT THROUGH WALL WITH BUG SCREEN PANEL A FROM FIRE SUPPLY N. O. P. Q FILL OIL STORAGE TANK WITH PROPER FUEL TYPE. OPERATING CONTROL OF GENERATOR UNITS. OPERATION AT AUTOMATIC S AND LEVEL ALARMS. ALL S SHALL HAVE PROVISIONS FOR AND BE LOCKABLE. COORDINATE WITH AIRPORT PERSONNEL. TO HAVE TWO (2) SUPPLY S AND ONE (1) REVERSE. PROVIDE ALL NECESSARY S, STRAINERS, AND OTHER ACCESSORIES. SEE ENGINE GENERATOR SPECIFICATION 26 32 13 AND DIESEL-DRIVE CENTRIFUGAL SPECIFICATION 21 31 16. CONTRACTOR HAS THE OPTION TO PROVIDE AN ALTERNATE, COST NEUTRAL, DESIGN FOR THE FUEL OIL PIPING AND S SYSTEM TO BE REVIEWED BY THE ENGINEER OF RECORD. REVISIONS NO. DESCRIPTION DATE L.3 Addendum 11.3 12-17-2015 L.13 Addendum 11.13 01-13-2016 M.1 Addendum 12.1 02-01-2016 CONFORMED SET 02-08-2016 DSI-00018 MCA-DSI-0018 09-15-2016 OVERFILL/LOW LEVEL ALARM MONITORING PANEL (SEE NOTE E) CONCRETE PAD AND PILING (SEE CIVIL/STRUCTURAL DRAWING) NORMAL TANK VENT LOCATE VENT 12' ABOVE GRADE EMERGENCY VENT TO FIRE FILE LOG ACTIVITY BY Manager LINE TO EQUALIZE LEVELS IN TANKS Design Draw JLC JLC WEATHERPROOF JUNCTION BOX TO MONITOR PANEL MECH. TANK LEVEL GUAGE MORRISON BRO. MODEL NO#818 OR APPROVED EQUAL MANWAY TO FIRE Check STAMP GRC UNION REMOTE FILL ABOVE GRADE (SEE NOTE I) DROP TUBE (AUTOMATIC TANK GAUGING) MAGNETOSTRICTIVE PROBE OVER FILL PREVENTION 60,000 GALLON TANK TANK SUPPORT 1'- S BLOCK SUPPLY SUPPLY SUPPLY Signature: Date: ISSUED FOR CONSTRUCTION PROJECT NO. 051-10250-000 02-08-2016 PLUMBING SCHEMATICS 9/15/2016 3:25:07 PM CONCRETE PAD AND PILING (SEE CIVIL/STRUCTURAL DRAWING) 1 FUEL STORAGE SCHEMATIC FLOW DIAGRAM UP P 6001 SCALE: N.T.S. VOLUME 5 UP P 6001 LEO A DALY Company 2015