Pump Station No. 1 and Storage Tank

Transcription

1 ADDENDUM NO. 3 Pump Station No. 1 and Storage Tank HMM Project No CFWB Bid No. ITB August 16, 2012 This addendum forms a part of the Contract Documents and modifies the original Project Manual, dated June 2012, and Plans, dated June 2012, as noted below. Acknowledge receipt of this Addendum in the space provided on the Addendum Form. Failure to do so may subject Bidder to disqualification. Changes to Sections/Plans noted shall be considered as changes to any other sections of the plans and specifications which might be affected by the change. I. Information: Not used II. Clarifications: 1. Please note that Contractor shall employ Geotechnical Engineer of Record to perform the pile load tests and monitoring on this project. Refer to Specification 02380, Section 1.6B. 2. Contractor Questions and Responses: Question: The aluminum sizes for the elevated platform are not available, will have to fabricate these sizes. You have to buy a mill run of each size and that is at least 3,000# or more Response: Revise C15x17.3 to C15x Pierce Aluminum Company out of Orlando ( ) indicate the new C15 size and all others are available. Refer to attached drawing S-101 for revised plan. Question: Specification 02380, 1.7 E. Unit Prices, instructs the bidder to provide the list of four (4) Unit Prices for Auger Cast Piles in the Bid Form. Do these unit prices add/deduct to the bidders total for purposes of determining the low bid? For consistency among the bidders, can a new Bid Form containing these unit prices be issued? Response: Spec removed see below Pump Station No. 1 and Storage Tank Addendum No. 3 1 HMMF No / CFWB Bid No. ITB

2 Question: The painting system requirements listed on Plan Sheet S-101 appear to be for submerged service. Please review, and revise the painting system notes if necessary. Response: Use painting systems as specified. III. Project Manual: 1. Section Auger Cast Piles: Delete paragraph 3.7.C.5.a and 3.7.C.5.b in their entirety. Delete paragraph 1.7.E in its entirety. 2. Section Prestressed Concrete Storage Tank: Add Paragraph 1.5.B.3.b PreCon Corporation, Newberry, Florida. 3. Section Submersible WW Pumps: Replace Paragraph 1.01 B in its entirety with the Following: The pump supplier shall also furnish all services (including labor as required), materials, equipment, warranties and incidentals specified in Sections 11110, 16900, 16910, 16930, and the reuse booster pump w/controls specified on Sht P-502 and shall be fully responsible for the correct installation, integration, startup and functionality of the entire system encompassed by the listed specifications. IV. Project Plans: 1. Sheets P-200, P-302, P-504, S-100, S-101 and S-300: Remove these sheets previously published and replace with sheets attached herein. 2. Sheet P-502: Replace Reclaimed Water Booster Pump & Tank Drain Pinch Valve Vault Detail Note 3 in its entirety with the following: Reclaimed water booster pump shall provide a flow rate of TDH with 75% minimum efficiency and shall not exceed 15hp. Pump Station No. 1 and Storage Tank Addendum No. 3 2 HMMF No / CFWB Bid No. ITB

3 B.M. ELEV.: 6.51 NAIL & DISC IN SLAB. LB#6783 FOR CONTINUATION SEE SHT. P " D.I.P. = 3.43 PROPOSED 20"Ø FORCE MAIN (SEE SHT. P-201) Hatch Mott MacDonald Hatch Mott MacDonald Florida, LLC Architects Engineers Surveyors AA-C EB LB P.O. Box 2518 ( ) * 5111 N. 12th Ave. * Pensacola, Fl. (32504) Telephone: (850) * Fax: (850) INSTALL 6"x2" SERVICE SADDLE, 2" CORP. STOP & 2" CURB STOP & BOX INSTALL 12" D.I.P.; % SLOPE TO PUMP STATION INSTALL 12" 22.5 FITTING 2'' 2'' INSTALL 12" 45 FITTING 2'' 2'' INSTALL 146 L.F. OF 2" SCH. 40 SOLVENT WELD PIPE LAIMED WATER MAIN INSTALL 12" 22.5 FITTING 2'' 2'' INSTALL 2" FLUSHING HYDRANT & HOSE REEL W/ 50' HOSE (SEE SHT. P-301) PUMP STATION #1 (SEE SHT. P-301 FOR PUMP STATION PIPING) CITY OF FORT WALTON BEACH PUMP STATION #1 & STORAGE TANK BID DOCUMENTS LEGEND SEE TANK DRAIN PRELOADING BERM SECTION; SHT. P-500 INSTALL 8" TANK FILL PINCH VALVE (SEE SHT. P-301) P:\299802\Drawings\Civil\PumpStation1\Addendum 3\P-200 YARD PIPING PLAN.dwg PLOT DATE: 8/16/2012 5:02 PM 4'' FM FM SS > SS > INSTALL LAIMED WATER BOOSTER PUMP STATION (SEE SHT. P-502) INSTALL 6" D.I.P. LAIMED WATER MAIN (SEE SHT. P-400) LAIMED WATER WARNING SIGN (SEE SHT. P-400) LAIMED WATER MAIN; INSTALL 314 L.F. OF 6" 30" MIN. COVER 3 SUMP TOP EL. = 6.65 (SEE SHT. P-404) HH HH 12" D.I.P. (TANK DRAIN) INV. = 4.67 (SEE SHT. P-404) INSTALL 12" BURIED PLUG VALVE INSTALL 12" TANK DRAIN PINCH VALVE (SEE SHT. P-502) 10" D.I.P. (TANK FILL) INV. = 4.77 (SEE SHT. P-404) INSTALL 12" D.I.P. FORCE MAIN; % SLOPE TO VALVE VAULT 130'Ø STORAGE TANK (SEE SHT. P-400) INSTALL 10" 45 FITTING INSTALL 10" FITTING INSTALL 10" D.I.P. FORCE MAIN; 260 L.F. TO STORAGE TANK 30" MIN. COVER NOTES: 1. ALL PIPE JOINTS FOR BURIED ONSITE DUCTILE IRON PIPE SHALL BE FLEX RING FIELD ADAPTABLE FLEX RING OR TR FLEX WITHOUT EXCEPTION UNLESS SPECIFICALLY CALLED OUT ON THE PLANS. 2. ALL PIPE JOINTS FOR BURIED ONSITE PVCP SHALL BE RESTRAINED PER PROJECT MANUAL SPECIFICATION SECTION ALL BURIED VALVE JOINTS SHALL BE MECHANICALLY RESTRAINED JOINT AS SPECIFIED IN THE PROJECT MANUAL. 4. ALL PIPE AND VALVES SHALL BE JOINED TOGETHER IN ACCORDANCE WITH MANUFACTURER'S OMMENDATIONS. 5. THE TANK DRAIN PIPING ON THE SITE FROM THE GROUND STORAGE TANK TO THE EXISTING PUMP STATION SHALL BE PRELOADED DUE TO THE PRESENCE OF PEAT SOILS IN THE AREA. THE PRELOAD SHALL BE A BERM 5 FEET HIGH AND 8 FEET WIDE AT THE TOP, PER THE DETAIL, SHT. P-500, CENTERED OVER THE PROPOSED PIPING ALIGNMENT. THE EXISTING MATERIAL ON SITE IS SUITABLE FOR THIS PURPOSE, AND SHOULD BE PLACED IN 1 FOOT THICK LIFTS, EACH LIFT WELL COMPACTED. THE PRELOAD SHOULD BE LEFT IN PLACE 90 DAYS PRIOR TO THE INSTALLATION OF THE TANK DRAIN PIPING, THE BOOSTER PUMP STATION OR PILE FOUNDATIONS FOR THE TANK. 6. FOR BEDDING PURPOSES, ALL PIPELINES ON THE SITE LARGER THAN 4" SHALL BE UNDERCUT TWO (2) FEET AND THE BOTTOM OF THE EXCAVATION SHOULD HAVE A GEOTEXTILE FABRIC PLACED ON IT PER THE DETAIL ON SHEET C-103. THE BACKFILL SHOULD BE CLEAN SAND WITH LESS THAN 5 PERCENT FINES AND THE TOP COMPACTED TO A TARGET DENSITY OF 92 PERCENT OF A MODIFIED PROCTOR TEST (ASTM D1557) DENSITY WITH HAND EQUIPMENT. REVISION DESCRIPTION DATE REV. AUGUST 2012 SLM DWK DATE: DESIGNED BY: DRAWN BY: PROJECT ENGINEER: PROJECT MANAGER: SHEET TITLE: 07/15/12 0 BID DOC MODIFICATIONS ISSUED FOR BID NOT FOR CONSTRUCTION 08/07/12 1 ADDENDUM 1 08/10/12 2 ADDENDUM 2 08/16/12 3 ADDENDUM 3 DATE YARD PIPING PLAN SHEET NUMBER: P-200 H.M.M. PROJECT NUMBER: AFFIX SEAL DANIEL W. KECK, P.E. FLORIDA LICENSE NO.

4 PUMP STATION #1 & STORAGE TANK 8/16/2012 6:25:36 PM 10" 45 FL BEND 10" 45 FR BEND EMBEDDED CHANNEL GATE TIDE FLEX (SEE SHT. P3504) NEW CHANNEL GRINDER EXISTING 36" D.I.P INFLUENT INV. = " FL x FR SPOOL ELECTRICAL MANHOLE (SEE SHT. E3121) SLUICE GATE W/ WALL THIMBLE 10"x10 TEE 10"x8" REDUCING BEND ADJUSTABLE PIPE SUPPORT (SEE SHT. P3500) 1 8" PINCH VALVE 10" PLUG VALVE 20" 90 BEND 20x16" ECCENTRIC REDUCER INSTALL 2" SCH. 40 SOLVENT WELDED PIPE TO HOSE REEL EAST 3 SECTION 1/4" = 1'30" ADJUSTABLE PIPE SUPPORT 16" FLOW METER ISOLATION PLUG VALVE 0' 2' 4' 8' 16' 6" DIA. WET WELL LEVEL SENSOR PUMP GUIDE RAIL 8" DIA. PENETRATION WET WELL MIXER W/ VORTEX SUPPRESSOR; INSTALL BOTTOM SUPPORT AT GROUT LINE INSTALL 131/2" SCH. 40 SOLVENT WELDED PIPE TO HOSE REEL (SEE SHT. P3303 FOR CONTINUATION) 16" RESTRAINED DISMANTLING JOINT 16" MAGNETIC FLOW METER CONCRETE PIPE SUPPORT (SEE SHT. P3502) 10" D.I.P. RISER PIPE 200HP MAX. SUBMERSIBLE WASTEWATER PUMP 16" FLOW METER ISOLATION PLUG VALVE 8" PLUG VALVE 8" SURGE VALVE 8" 90 FR BEND INSTALL 131/2" SCH. 40 SOLVENT WELDED PIPE TO HOSE REEL 12"x10" D.I.P. REDUCING 90 BEND 20" 90 FR BEND Existing Grade 7.25 Level "x8" TEE 12" AIR CUSHIONED SWING CHECK VALVE W/ CONCRETE SUPPORT BELOW 3 16" PLUG VALVE FOR BY3PASS PUMP CONNECTION W/ BLIND FLANGE 3" AIR RELEASE VALVE 16" PLUG VALVE FOR BY3PASS PUMP CONNECTION W/ BLIND FLANGE 12" PUMP ISOLATION PLUG VALVE WEST 3 SECTION 1/4" = 1'30" 20"x16" ECCENTRIC REDUCER WET WELL MIXER W/ VORTEX SUPPRESSOR 20" 90 FL BEND CENTERLINE OF PIPE = ' 2' 4' 8' 16' 16"x12" TEE 20" FL x FR SPOOL Existing Grade RISER PIPE BRACKET; INSTALL 5'36" BELOW PIPE FLANGE (SEE SHT. P3504) Level "x12" TEE 200HP MAX. SUBMERSIBLE WASTEWATER PUMP 16" PLUG VALVE "x12" TEE 16"x24" REDUCER NORTH 3 SECTION 1/4" = 1'30" 0' 2' 4' 8' 16' 16"x12" TEE 24"x20" ECCENTRIC REDUCER SOUTH 3 SECTION 1/4" = 1'30" 0' 2' 4' 8' 16' 24"x10" TEE 10" PLUG VALVE 12"x10" D.I.P. REDUCING 90 BEND 10" D.I.P. RISER PIPE Existing Grade 7.25 Level " 90 BEND CENTERLINE OF PIPE = Existing Grade 7.25 Level Hatch Mott MacDonald Hatch Mott MacDonald Florida, LLC. Architects Engineers Surveyors AA 3 C EB LB CITY OF FORT WALTON BEACH DATE: REV. REVISION DESCRIPTION 07/15/12 0 BID DOC MODIFICATIONS DATE: JULY 2012 DESIGNED BY: DRAWN BY: SLM PROJECT ENGINEER: PROJECT MANAGER: DWK H.M.M.F. PROJECT NUMBER: ISSUED FOR BID NOT FOR CONSTRUCTION SHEET TITLE: 08/07/12 1 ADDENDUM 1 08/16/12 2 ADDENDUM 3 SHEET NUMBER: P.O. Box 2518 ( ) * 5111 N. 12th Ave. * Pensacola, Fl. (32504) Telephone: (850) Fax: (850) PUMP STATION #1 & TANK STORAGE DATE FLORIDA LICENSE NO. BID DOCUMENTS PUMP STATION SECTIONS DANIEL W. KECK P This drawing is the property of Hatch Mott MacDonald Florida, LLC., and may not be reproduced without written permission. This document should not be relied on or used in circumstances other than those for which it was originally prepared and for which Hatch Mott MacDonald was commissioned. Hatch Mott MacDonald accepts no responsibility for this document to any party other than the person or entity by whom it was commissioned.

5 REVISION DESCRIPTION DATE REV. Hatch Mott MacDonald P:\299802\Drawings\Civil\PumpStation1\Addendum 3\P-504 PUMP STATION DETAILS.dwg PLOT DATE: 8/16/2012 5:01 PM DATE: DESIGNED BY: DRAWN BY: PROJECT ENGINEER: PROJECT MANAGER: AUGUST 2012 SLM DWK CITY OF FORT WALTON BEACH PUMP STATION #1 & STORAGE TANK BID DOCUMENTS Hatch Mott MacDonald Florida, LLC Architects Engineers Surveyors AA-C EB LB P.O. Box 2518 ( ) * 5111 N. 12th Ave. * Pensacola, Fl. (32504) Telephone: (850) * Fax: (850) /15/12 0 BID DOC MODIFICATIONS 08/07/12 1 ADDENDUM 1 08/16/12 2 ADDENDUM 3 ISSUED FOR BID NOT FOR CONSTRUCTION SHEET TITLE: DATE PUMP STATION DETAILS SHEET NUMBER: P-504 H.M.M. PROJECT NUMBER: AFFIX SEAL DANIEL W. KECK, P.E. FLORIDA LICENSE NO.

6

7

8