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Home My WebLink AboutC2009-509 - 12/14/2009 - NAAMENDMENT NO. 1 TO CONTRACT FOR PROFESSIONAL SERVICES The City of Corpus Christi, Texas hereinafter called "CITY", and B. HARMAN ENGINEERING, LLC, hereinafter called "CONSULTANT," agree to the following amendment to the Contract for Professional Services for Oso Water Reclamation Plant Process Improvements, Belt Filter Press Building Replacement (Project No. 7423), as authorized and amended by: Ori final Contract Aril 21, 2009 Motion No. 2009-094 $271,702.00 EXHIBIT "A", PART 1. SCOPE OF SERVICES, SECTION A. BASIC SERVICES, ITEM NO. 1 PRELIMINARY PHASE shall be amended to include additional Preliminary Phase Services in the amount of $1,100.00. EXHIBIT "A", PART 1. SCOPE OF SERVICES, SECTION A. BASIC SERVICES, ITEM NO. 2 DESIGN PHASE shall be amended to include additional Design Phase Services in the amount of $36,461.00. EXHIBIT "A", PART 1. SCOPE OF SERVICES, SECTION B. ADDITIONAL SERVICES, shall be modified to expand Additional Services to include the following: ITEM NO. 6 TOPOGRAPHIC SURVEY: • Provide Topographic Survey of the area where the new building will be constructed in the amount of $7,950.00. ITEM N0.7HYbRO-EXCAVATION: • Hydro-Excavation of the existing process lines and electrical duct banks to identify the location and depth of the infrastructure so that they can be relocated, if necessary for the construction of the new dewatering building in the amount of $4,420.00. EXHIBIT "A", PART 2. SCHEDULE shall be modified as follows: DAY DATE ACTIVITY Wednesday May 15, 2009 Begin Preliminary Phase Monday September 14, 2009 Begin Design Phase Friday December 4, 2009 Interim Submittal Friday December 18, 2009 City Review Friday March 5, 2010 Pre-Final Submittal Friday March 19, 2010 City Review Friday May 7, 2010 Final Submittal Monday (2) May 10 & May 17, 2010 Advertise for Bids Wednesday May 19, 2010 Pre-Bid Conference Wednesday May 26, 2010 Receive Bids Monday July 19, 2010 Begin Construction Weekday May 6, 2011 Construction Completion 2009-509 12/14/09 AMD. N0.1 Pa e 1 of 2 '.P Process Improvements, Belt Filter Press Building\Consultant\Amrndmrnt No. I Wmcndment No. I.doc B. Harman Engineering EXHIBIT "A" PART 3. FEES SECTION C. SUMMARY OF FEES shall be modified and is attached as Exhibit "A" Summary of Fees for a revised fee not to exceed $49,931.00 (FortLr- Nine Thousand Nine Hundred Thirty One Dollars and Zero Cents), for a total restated fee not to exceed X321,633.00 (Three Hundred Twenty One Thousand Six Hundred Thirty Three Dollars and Zero Cents). All other terms and conditions of the April 21, 2009 contract between the City and Consultant will remain in full force and effect. CITY O CORPU CHRISTI ~i%GGU ,ts /Z /y d Juan Perale~ Jr., P.E. (Date) Assistant City Manager RECOMME ED Pete Anaya, P.E. (Date) Director of Engineering B. HA N EN INEERING, LLC l Bhaskar H. Patel, P.E. (ate) President 4337 Lake Ontario Drive Corpus Christi, TX 78413 (361) 241-9158 Office; (361) 299-2291 Fax ATTEST __.. J~ Armando hapa, City Secreta Da e) AP ROVED AS O FOR (,v ~ ~~ . Assistant City Attorney (Da e) ~ 7~~~-~ ~ AMD. NO. 1 Pa e2of2 H:\HOMEUCellyO\GEN\WASTEWATER\7423- Oso WRP Process Irr~rovements, Belt Filter Press Building\ConsultantWmendntem No. 1\Amendment No. t.doc BHASKAR H. PATEL, P.E. d.b.a. B. HARMAN ENGINEERING, LLC ' ~ ' 4337 I.nxE ONT,sluo DR1vF: CORPUS CxxtS'TT TX 78413 ,_~ j' ~ .,. October 2, 2009 Mr. Pete Anaya, P.E. Director of Engineering Services 1201 Leopard St. Corpus Christi, Texas 78401 RE: OSO WRP PROCESS IMPROVEMENTS BELT FILTER PRESS BLDG. REPLACEMENT (PROJECT NO. 7423 Man-hours/Cost Breakdown for Amendment No.1 to the contract. Dear Mr. Anaya: During the preliminary phase of Oso WRP Process Improvements, Belt Press Building Replacement Project, the Wastewater Dept. staff had requested us to relocate the proposed Belt Press Building towards the west fence line of the Oso WRP property. Also, the staff had requested us to modification solids stream of the treatment plant which requires sludge to be drawn directly from digester # 1 for dewatering, instead of from the post thickener tanks, as originally designed and built. The other modifications to the solids stream include relocation of waste activated sludge (WAS) pumps discharge lines from the pre-thickener tanks to aerobic digester # 2 & digester # 3. The changes are justifiable as by relocating the building (which will be a tall building) towards the back of the property, it will be away from the Ennis Joslin Blvd. Also, as the sludge will be drawn from digester # 1, the dewatering building will be constructed close to the source of sludge to be processed. The elimination of thickeners from solids stream is necessary as the sludge becomes septic and causes emission of sulfide gases by the time it gets processed in the thickener tanks. The process change will require installation of pumps in a new pump station next to the proposed dewatering building, which again was not included in the original scope of work. The original scope of work required replacement of existing progressive cavity pumps. EXHIBIT "A" Pa e 1 of 5 . E-mail: patelbhas e,gmail.com Phone # :361-241-9158, Cell: 361-742-3665, Fax: 361-299-2291. . - 2 - October 2, 2009 Herewith, we are furnishing the outline of the tasks to be performed along with breakdown of the manhours/ costs for each item. As you are aware, we have submitted a Preliminary Engineering Draft Report and as the scope of project has changed, it will be revised to reflect the requirements of the additional tasks. Following is the list of additional tasks or modifications of the tasks which are to be performed for the project. Item No. 1 Topographic Survey of the area where the new building will be constructed. It will include survey along the access road between the existing concrete pad for container storage on east side of the headworks to the proposed building and the area around the proposed dewatering building site, at least 300 feet beyond the building perimeter. It will also include tying down of all above ground existing structures, manholes and pull boxes. Topographic survey will also include the area of the plant through which the two force mains will be rerouted. The topography survey work for the original site per the existing contract was provided by the City Surveyor which was completed much earlier during the initial award of the project. Item No. 2 Hydro-excavation and/or preconstruction excavation of the existing process lines and electrical duct banks to identify the location and depth of the infrastructure so that they can be relocated, if necessary for the construction of the new dewatering building. Item No. 3 New Odor Control System for the Sludge Dewatering Building is proposed. This will require designing an in-ground odor control system for the new belt filter presses. It will include individual gas or fume hoods over the gravity section of the three belt filter presses and duct piping, water and drain lines and electrical system. Item No. 4 Construction of a new sludge pumping station with four double disc type of pumps complete with force mains for four belt filter presses and electrical controls. This pump station will be dry pit type constructed at an elevation -10.0 ft from the finished grade so that the pumps suction line remain in flooded condition. A jib crane will be included for removal and maintenance of the pumps. Item No. 5 Existing sludge pumps station for pumping sludge from Digester # 1 to Post Thickener will be demolished to below grade. Prior to demolition, all pipes including the wall spools will be filled with grout and plugged. The concrete structure will be demolished and all concrete up to 3 ft below the ground level will be removed and hauled away. All mechanical equipment and electrical components, if not salvageable shall be removed and hauled away, as well. The dry pit of the pump station will be filled with clean dirt and compacted to 90% Modified Proctor Density. EXHIBIT "A" Pa e2of5 - 3 - October 2, 2009 Item No. 6 Sludge from existing post thickeners will be removed and hauled off and disposed according to the requirements of TCEQ and to comply with TCEQ's Chapter 217 rules. All equipment and walls will be washed down and drained to the head works of the plant once the sludge is removed. Item No 7 All mechanical equipment from the two post thickeners and the sludge pump house wilt be removed and hauled off and disposed off. Once the equipment is removed, all pipe ends from and to the post thickeners will be plugged using concrete grout. The concrete structure will be demolished up to 3 ft below grade. The voids will be filled with clean dirt and finally compacted to Modified Procter Density of 90% and the area will be seeded. Item No $ Demolition of existing sludge dewatering building including the conveyor system. This will require removal all electrical and mechanical equipment and disposal of any unsalvageable equipment. The building will be completely demolished, at least to 3' 0" below finished grade and all concrete rubble will be removed and hauled off. Item No 9 Demolition of old Maintenance Building. The dilapidated corrugated metal building will be removed along with the steel structure and the concrete slab. The site will be cleaned and all debris will be removed from site and voids will be filled with top soil and the area will be seeded. Item No. 10 Prepare specifications for a sludge hauling truck to be used with roll-off containers. Prepare drawings and specifications for two sizes of sludge containers, 25 yds for sludge and 12 yds for grit. Also, to be included as part of the bid proposal, the purchase of one sludge truck, four large containers and two small containers. Item No. 11 Modify the area near the headworks to handle new grit containers. We understand that this request is significant in size as it accounts for approximately 475 man-hours for Preliminary Phase and Design Phase of the Project which amounts to additional fee of $ 37,561.00. The additional services fees which include topography survey and hydro-excavation at the site is $ 12,370.00. The total amount for the Amendment # 1 of contract is $49,931.00. The Construction cost estimates for this additional work is about $ 760,000.00. With this amendment to the contract, we are requesting that the completion schedule of the project be revised as shown below. Overall, 76 days are added to the schedule. The preliminary stage has shifted by approximately 50 days and fifteen days are added to the construction phase. EXHIBIT "A" Pa e3of5 - 4 - October 2, 2009 DAY DATE ACTIVITY Wednesday May 15, 2009 Begin Preliminary Phase Monday Sept 14, 2009 Begin Design Phase Friday December 4, 2009 Interim Submittal Friday December 18, 2009 City Review Friday March 5, 2010 Pre-Final Submittal Friday March 19, 2010 City Review Friday May 7, 2010 Final Submittal Monday (2) May 10 & May 17, 2010 Advertise for Bids Wednesday May 19, 2010 Pre-Bid Conference Wednesday May 26, 2010 Receive Bids Monday July 19, 2010 Begin Construction Weekday May 6, 2011 Construction Completion Please feel free to contact me at 36'C-742-3665 if you have any questions regarding this subject. Sincerely, B. Harman Engineering, LLC Bhaskar Patel, P.E. Project Manager Attachments: Spread Sheet- Engineering Fee Preliminary Opinion -Construction Cost Estimate EXHIBIT "A" Pa e4of5 OSO WATER RECLAMATION PLANT PROCESS IMPROVEMENTS BELT FILTER PRESS BUILDING REPLACEMENT PROJECT NO. 7423 SUMMARY OF FEES Basic Services: Original Contract Amendment No. 1 Total Contract 1 Prelimina Phase $28,626.00 $1,100.00 $29,726.00 2 Desi n Phase $171,787.00 $36,461.00 $208,248.00 3 Bid Phase $5,210.00 $0.00 $5,210.00 4 Construction Phase $22,355.00 $0.00 $22,355.00 Subtotal Basic Services $227,978.00 $37,561.00 $265,539.00 Additional Services: 1 Permittin $10,340.00 $0.00 $10,340.00 2 Start-U $888.00 $0.00 $888.00 3 Construction Observation $27,300.00 $0.00 $27,300.00 4 Warrant Phase $2,316.00 $0.00 $2,316.00 5 Surve for E ui ment $2,880.00 $0.00 $2,880.00 6 To o ra hic Surve $0.00 $7,950.00 $7,950.00 7 H dro-Excavation $0.00 $4,420.00 $4,420.00 Subtotal Additional Services $43,724.00 $12,370.00 $56,094.00 Summa of Fees Basic Services $227,978.00 $37,561.00 $265,539.00 Additional Services $43,724.00 $12,370.00 $56,094.00 Total Fees $271,702.00 $49,931.00 $321,633.00 EXHIBIT "A" Pa e5of5 SUPPLIER NUMBER TO BE ASSIGNED BI'-CiT~ PURCHASING DIVISION w~.. Ciry of CITY OF CORPUS CHRISTI corpus DISCLOSURE OF INTEREST Chnsti City of Corpus Christi Ordinance 17112, as amended, requires all persons or firms seeking to do business with the City to pprovide the following information. Every question must be answered. If the question is not applicable, answer with "NA". See reverse side for Filing Requirements, Certifications and definitions. COMPANY NAME: B. Harman Engineering, LLC P. O. BOX: STREET ADDRESS: 4337 Lake Ontario CITY: Corpus Christi ZIP: 78413 FIRM IS: 1. Corporation 2. Partnership 3. Sole Owner ^ 4. Association ® 5. Other ^ DISCLOSURE QUESTIONS If additional space is necessary, please use the reverse side of this pa e or attach separate sheet. 1. State the names of each "employee" of the City of Corpus Christi having an "ownership interest" constituting 3% or more of the ownership in the above named "firm.' Name Job Title and City Department (if known) N/A 2. State the names of each "official" of the City of Corpus Christi having an "ownership interest" constituting 3% or more of the ownership in the above named "firm." Name Title N/A 3. State the names of each "board member" of the City of Corpus Christi having an "ownership interest" constituting 3% or more of the ownership in the above named "firm." Name Board, Commission or Committee B as ar H. Pate E ectrica A visory Boar 4. State the names of each employee or officer of a "consultant" for the City of Corpus Christi who worked on any matter related to the subject of this contract and has an "ownership interest" constituting 3% or more of the ownership in the above named "firm." Name Consultant N/A EXHIBIT "B" Pa e1of2 FILING REQUIREMENTS If a person who requests official action on a matter knows that the requested action will confer an economic benefit on any City official or employee that is distinguishable from the effect that the action will have on members of the public in general or a substantial segment thereof, you shall disclose that fact in a signed writing to the City official, employee or body that has been requested to act in the matter, unless the interest of the City official or employee in the matter is apparent. The disclosure shall also be made in a signed writing filed with the City Secretary. [Ethics Ordinance Section 2-349 (d)] CERTIFICATION I certify that all information provided is true and correct as of the date of this statement, that I have not knowingly withheld disclosure of any information requested; and that supplemental statements will be promptly submitted to the City of Corpus Christi, Texas as changes occur. Certifying Person: Bhaskar H. Patel Title: President (Type or Print) Signature of Certifying ~ Date: ~~~~~ Person: ~ DEFINITIONS a. "Board member." A member of any board, commission, or committee appointed by the City Council of the City of Corpus Christi, Texas. b. "Economic benefit". An action that is likely to affect an economic interest if it is likely to have an effect on that interest that is distinguishable from its effect on members of the public in general or a substantial segment thereof. c. "Employee." Any person employed by the City of Corpus Christi, Texas either on a full or part-time basis, but not as an independent contractor. d. "Firm." Any entity operated for economic gain, whether professional, industrial or commercial, and whether established to produce or deal with a product or service, including but not limited to, entities operated in the form of sole proprietorship, as self-employed person, partnership, corporation, joint stock company, joint venture, receivership or trust, and entities which for purposes of taxation are treated as non-profit organizations. "Official." The Mayor, members of the City Council, City Manager, Deputy City Manager, Assistant City Managers, Department and Division Heads, and Municipal Court Judges of the City of Corpus Christi, Texas. f. "Ownership Interest." Legal or equitable interest, whether actually or constructively held, in a firm, including when such interest is held through an agent, trust, estate, or holding entity. "Constructively held" refers to holdings or control established through voting trusts, proxies, or special terms of venture or partnership agreements." g. "Consultant." Any person or firm, such as engineers and architects, hired by the City of Corpus Christi for the purpose of professional consultation and recommendation. EXHIBIT "B" Pa e2of2