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Home My WebLink About15316 ORD - 01/23/1980AN ORDINANCE AUTHORIZING THE CITY MANAGER TO EXECUTE CHANGE ORDER NO. 1 TO THE CONTRACT WITH HELDENFELS BROTHERS, INC. FOR SANIrTARY SEWER IMPROVEMENTS TO CORPUS CHRISTI BEACH AREA, A SUBSTAN- TIAL COPY OF WHICH CHANGE ORDER IS ATTACHED AND MADE A PORT HEREOF, MARKED EXHIBIT "A"; WHICH PROVIDES FOR INCREASED PUMP COSTS, APPROPRIATING $32,459.75 OUT OF THE NO. 250 SANITARY SEWER BOND FUND, PROJECT NO. 250-77-21, BROADWAY SEWER LINES AND LIFT STATIONS - CORPUS CHRISTI BEACH AREA; AND DECLARING AN EMERGENCY. BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF CORPUS CHRISTI, TEXAS: SECTION 1. That the City Manager be and he is hereby authorized to execute Change Order No. 1 to the contract with Heldenfels Brothers, Inc., for sanitary sewer improvements to the Corpus Christi Beach area, a sub- stantial copy of which change order is attached hereto and made a part hereof, marked Exhibit A. SECTION 2. That there is hereby appropriated the sum of $32,459.75 out of the No. 250 Sanitary Sewer Bond Fund for increased pump costs for the above improvements, applicable to Project No. 250-77-21, Broadway Sewer Lines and Lift Station - Corpus Christi Beach. SECTION 3. That the necessity to execute Change Order No. 1 to the contract with Heldenfels Brothers, Inc. for the project above described and to appropriate the sums necessary to construct the improvements at the earli- est practicable date creates a public emergency and an imperative public necessity requiring the suspension of the Charter rule that no ordinance or resolution shall be passed finally on the date of its introduction but that such ordinance or resolution shall be read at three several meetings of the City Council, and the Mayor having declared such emergency and necessity exist, and having requested the suspension of the Charter rule and that this ordinance be passed finally on the date of its introduction and take effect and be in full force and effect from and after its passage, IT IS ACCORDINGLY SO ORDAINED, this the o23 day of January, 1980. ATTEST: APPROVED: 1.- 3 DAY OF JANUARY, 1980: J. BRUCE AYCOCK, CITY ATTORNEY o•em THE CITY S CHRISTI, TEXAS 11AU& 2' 8O Change Order No. 1 CHANGE ORDER Engineering and Physical Development City of Corpus Christi, Texas Operating Department Utilities - Wastewater Service Project No. EPA C48-1216-04 Date January 35. 1980 Name of Project CORPUS CHRISTI BEACH SEWERS (BROADWAY PLANT PHASE 2) • Contractor Heldenfels Brothers, Inc. CHANGE 1. Lift Station Revisions.- change venting systems and install pumps (3 pump stations, 6 pumps) 2. Addition system tie-in costs, due to pump station approval delays Refer to letter of Heldenfels Bros. December 18, 1979, attached, for cost details. Refer to specifications and drawing 7596-C, attached. Request 100 days extension of time. ADD DEDUCT 14.-2-r775 B8" 18,172.00 $34,1367a0 -- 3s,451 34,136- 0d"".2,451 Why was this change necessary? (If left off the plans and specifications, explain why.) Changes. and project delays caused by delays of pump approvals pending review by regulatory bodies and added requirement for mechanical ventilation. How can similar changes be avoided in the future? station pumping equipment. E.P.A. is intiating a study on lift Contract Price $899,718.50 This Change Order New Contract Price $933,904.50 Funds Available 32,r5975 - McCAUGHAN, ETHERIDGE & WEBB Constructi n • CITY OF CORPUS CHRISTI, TEXAS CONTRACTOR HELDENFELS BROS., INC. By By Director of Engineering & Physical Development APPROVED City Manager City Attorney Title CITY OF CORPUS CHRISTI, TEXAS SPECIFICATIONS FOR WET WELL VENTILATION CORPUS CHRISTI BEACH SEWERS I'ROJNY:'I' C 48-1216-04 CHANCE ORDER NO. 1 SCOPE: This specification covers the work to be done under a Change Order to the above contract. The Contractor shall provide at each of the three Lift Stations in the contract an electrically powered ventilating fan and asso ciated vents, piping, wiring, and other construction. The vent sections previously fabricated for the stations shall not be used and shall become the Contractor's property. MATERIALS: The ventilation unit shall be a fan with a direct connected cast iron housing unit, with aluminum non -sparking wheel, inlet'screen, hard cover and vibration isolators. The motor shall be totally enclosed fan cooled (TEFC), minimum 1/6 horsepower, 1200 RPM, 120 volts, 60 Hertz. The unit shall be capable of supplying 325 CFM at 0.25 inches static pressure. The fan shall be Champion 1M, Buffalo Forge Baby Vent set, or equal. The unit shall be suitable for continuous operation. The cover shall cover the entire unit and shall be of durable, corrosion resistant construction. Electrical materials shall comply with the general electrical specifi- cations in the contract. A separate 20 amp 120 volt circut breaker shall be provided for the fan. The discharge pipe (inlet to the wet well) shall be of 6" dia. Schedule 40 PVC pipe with cemented joints, connected to the blower with an approved type of flexible connection. The pipe shall be supported at two points with- in the wet well by 1/2" stainless bolts and cinch anchors. Holes shall be provided for pressure relief as shown on the plan. The exhaust vent pipe (discharge from the wet well) shall be of 6" dia. Schedule 40 PVC pipe and fittings with cemented joints, a PVC flange with stainless steel screen (1/4" mesh) and PVC or fiberglass retaining flange with stainless steel bolts shall be provided on the end of the vent. INSTALLATION: The fan shall be mounted on a concrete pedestal doweled to the lift station slab, using 4 no. 4 dowels. The electrical conduit to the fan shall be run in the valve vault slab. MEASUREMENT AND PAYMENT: The price hid in the Change Order for each Ventilation Unit shall be full and complete payment for the materials, labor, and equipment required to install the unit, and shall include any modification of previously com- pleted work which is necessary. CAVEIR. (,I�pVG SCu .43 I (CEMe JTED . r I I V))SRA/Tho "A M*:RSI /4 PVC. ScEsres CouPLIN�e�� 1 CINST int PLACE, OR 557 IN EPDX1/ THRU AN 8'161A.IHOLE. CINCN ANc11015S(2.� Yj,° ST. sn.,B!oi:T5 WhStltRS, 18'IDIA.HcLESIt►J PIPE. 'I --il (I . ill -31II • ''Db . Hotel (3) OPEN END • SSG• A —A , FAN AND SU PPL.y Pt PE- 4/811=II-Otl I +I PVC. 5c.14.40, CBM ...ITS. COUPLING I 0 wet,' SEC .13-13. FXHAUST VENT re_ Toil ��- EXHAUST VENT— SGREEkIED K PRO LJ iwa .SEPARATE ` it 1101V.20Iq BREA►iEti lI AeKass L2.4 tJ • it PLAN 1/811 it—o" CITY OF CORPUS CHRISTI CORPUS CHRISTI REACH SEWERS C!-IANGE ORDER N0, LIFT STATION VENTILATING UNITh (TUI E RUA) . McCAu619AN, FT14E174GrE WEE=5 — Ewetitiesils DEC. 3,1479 �,. b.J dW&. 759—'C ENGINEERING CONSTRUCTION HIGHWAYS UTILITIES AIRPORTS RTS SRIOGES Sk. 1909 CONSTRUCTION MATE NIALS COHC HELDENFELS BROTHERS, INC/102"`12e4194,—,IS —0--ASP„;fir McCaughan, Etheridge & Webb 320 Wilson Bldg. Corpus Christi, Texas 78401 Gentlemen: CONTRACTORS � 9�Q 171�AO) 4,3s, ALICHE GPJ�P` „, tk� 00� . ‘99.141N Re: Corpus Christi North Beach Improvements December 18, 1979 With reference to your letters of December 3, 1979, we furnish you a Lump Sum amount costs for the revision of the Lift Stations per your Dwy. 7596-C and additional costs incurred due to the delay for not having the pumps or lift stations in operation prior to making tie-ins to manholes associated to all sewer lines for lift stations "D" and "C". Cost breakdown as follows: Lift Station Revision: Pump Cost increases $x,334:81} Crew move -out & move -in 4,160.20 PVC, Vent Revisions 2,355.00 Concrete Revisions 1,128.00 Electrical Revisions 2,634.00 L.S. Revision & Remobilization costs Contractors O.H. & Profit Cost = Total L.S. Costs for Lift Station B,C & D 113= AA", — t . 43o'p $17,811 90 202!80 J t4Z4f7 75 Manhole Tie -In Costs Due to delay in L.S. "D" & "C" Completion: Crew & Equipment move -in Costs 441.00 Well Points & Dewatering Cost 208.00 Well Point Equipment Rental 98.00 Well Point Operational Cost 37.00 Steel Sheet piling -Placing Cost 300.00 Steel Sheet Piling -extracting Cost 133.00 Steel Sheet Piling -Rental 81.00 Total per each M.H. tie-in 1,298.00 Total for 14.0 each @ $1298.00 = 18,172.00 Total Lift Stations revision and Manhole tie-in delay cost X00— With reference to time delay, we request 100 working days extension of time. Our critical path schedule called for pumps and pump equipment to be on the project and ready to install not later than August 6, 1979 and to December 24, 1979 - this would be a total 321 MCBRIOE LANE P. O. SOX 4957 • CORPUS CHRISTI. TEXAS 70408 (512) 883-9331 Page 2 McCaughan, Etheridge & Webb December 18, 1979 of 100 working days. The time for the pump delivery which is 6 to 8 weeks after we issue a signed purchase order. We have proceeded with placing a temporary verbal order for the pumps in effort to avoid further delays. However, we request that a written Change Order be issued for the above including the extension of time so that we may proceed with a final purchase order. It was our intention when we scheduled the project to have Lift Station "D" completed along with the force main system to Lift Station "A" prior to proceeding with the sewer system that tied to Lift Station "D" and likewise with Lift Station "C" prior to proceeding with the sewer system that tied to Lift Station "C". This sequence was not followed due to the delay of the pump problems on the .Lift Stations and consequently, due to the problems encountered as a result of not being able to make tie-ins as planned, a meeting was called for by our letter of November 12,1979. We have determined that we are still not to make the tie-ins as we come to them and thus we will have to by-pass the tie-ins to the 14 manholes until Lift Station "D" and "C" are activated. Very truly yours, HELDEELS BROTHERS, INC. Luis Garza, LG,Jr./vt CITY OF CORPUS CHRISTI, TEXAS CERTIFICATION OF FUNDS (City Charter Article IV Section 21) January 17, 1980 I certify to the City Council that $ 32,459.75 , the amount required for the contract, agreement, obligation or expenditures contemplated in the above and foregoing ordinance is in the Treasury of the City of Corpus Christi to the credit of: Fund No. and Name No. 250 Sanitary Sewer Bond Fund Project No. Project Name 250-77-21 Broadway Sewer Lines and Lift Stations - Corpus Christi Beach Area from which it is proposed to be drawn, and such money is not appropriated for any other purpose. • , 19/ Director of Financ FIN 2-55 Revised 7/31/69 Corpis Christi , exas • o2!5 day of TO THE MEMBERS OF THE CITY COUNCIL Corpus Christi, Texas For the reasons set forth in the emergency clause of the foregoing ordinance, a public emergency and imperative necessity exist for the suspension of the Charter rule or requirement that no ordinance or resolution shall be passed finally on the date it is introduced, and that such ordinance or resolution shall be read at three meetings of the City Council; I, therefore, request that you suspend said Charter rule or requirement and pass this ordinance finally,on the date it is introduced, or at the present meeting of .the City Council. Respectfully, MAYOR Nm-lem THE CITY OF CO J CHRISTI, TEXAS The Charter rule was suspended by the follovote: Luther Jones Edward L. Sample Dr. Jack Best David Diaz Jack K. Dumphy Betty N. Turner Cliff Zarsky 'The above ordinance was passe Luther Jones Edward L. Sample Dr. Jack Best David Diaz Jack K. Dumphy Betty N. Turner Cliff Zarsky by the following vote: 15:3.x;