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Home My WebLink About1990-05-14 90-189 ORDERw5114/90 on Date Item No. 90-189 Item/Subject: Authorizing the City Manager to Sign an Amendment to the existing Contract with CH2M-HILL/Final Design of Secondary Treatment Facilities Responsible Department: Engineering Dept Commentary: Under the torms of the existing contract with C112M-HILL. it was agreed that a amendment for final design would be considered after completion of the prelimivx designow when the project scope and costgccob&dbbe more fully determined. The preliminary design has been completed, and the proposed final design amendment ommended for approval. nit was discussed isea in detail at a workshop session with the City Councll.on April 19th. All Panme.tXdm Manager's Comments: aLob Crym'"M, Associated Information: Budget Approval' 1V9Ttap1-LM. 11#64appy P'a Finance 0irt[tar Legal Approval: $ 16)11 esee UI CAYSo4[itar XreInt, aced For First Reading Page _ of ❑Referral 90-189 Auignedb founeHol England. May 14, 1990 CITY OF BANGOR (TITLE.) (Orber, Antho 1 1 s the, City Manager to .Sign n amendment to the. Existing Contract with CH2M-HILL/Fdthl Design of Secondary Treatment Facilities] By the Cary counal OfV s IXy Ofl9dow: ORDERED, THAT WHEREAS, the preliminary design of the proposed upgrade of the Wastewater Treatment Plant to provide secondary treatment has been completed by CM-HIU, consulting engineers, under a contract dated January 24, 1990; and HHERELS,.the project schedule requires the immediate start of the final design in order to meet the required deadlines for completion; NOW, THEREFORE, BE IT ORDERED THATJItheCClry Manager, acting for and on behalf of the Municipal Officers be and hereby is authorized to sign an amendment to the contract with CH2M-HILL, for. final Itowdign services, a copy of Said amendment being on flle,in the office of the City Clerk. ' IN CITY COUNCIL May 4, 1990 Pa d C Y CLERK 90-189 O ROER Tit12, _ Authorleingj1hl CI CK Manage: CO Sign an AmenLmen[ to the Existing Contract with CU2N-HILL Final Design of Seconday Treatment ..J.................. to ..... Aerigned ..... ....... CounciLran Addendum to the Agreement between CHM Hill Southeast, Inc. (the Engineer) and the City of Bangor. Maine (the Pani) dated 24January1990 for a project generally described as "Primary Wastewater Treatment Plant Upgrade" Attachment A Scope of Services will be amended as follows. Phase II Final Design Task I Preparation of Plans and Specifications It is agreed that the scope of the design work will be as generally described in the report 'Preliminary Design Secondary Treatment" prepared by CHM Hill. Based upon the facilities described in the report, the attached Drawing List farms the new scope of final design. The "Assumed Facilities List' page 15 attached to the January 24. 1990 agreement is deleted and the Drawing List starting on page 18 Is deleted. Activity Schedule Page 31 of the AGREEMENT is amended as follows: Phase II Final Design will be completed by July 20, 1990 for submittal to the regulatory agencies. Phase II -Final Design Basis of Payment page 33 shall be replaced by the following new Basis of Payment: The above lump sum fee will be due whether o r not the a umber of drawings is produced. If more r r fewer drawings a ended, the lump sum will remain unless a change in scope is agreed upon. ' Additional Scope of Work I Value Engineering Redesign The scope is as defined in the attached letter of March 21, 1990 IE Forensic Investigation of Bangor Operations Building The scope Is as defined in the attached after of March 21, 1990 III Testpit Program The scope is as defined in the attached letter dated April 4. 1990 Number of Estimated Labor Drawings -. per Drawings Total Civil 7 $2,500 $17,500 Architectural 30 2,700 81,000 Structural 77 3,300 254,000 Electrlal 42 4,400 184,000 Instrumentation/Control 20 3,300 66,000 Building Services 21 6,000 126,000 Process Mechanical/General 72 5,300 396,000 Subtotal Labor $1,125,300 Expenses 160,200 $1,293,500 The above lump sum fee will be due whether o r not the a umber of drawings is produced. If more r r fewer drawings a ended, the lump sum will remain unless a change in scope is agreed upon. ' Additional Scope of Work I Value Engineering Redesign The scope is as defined in the attached letter of March 21, 1990 IE Forensic Investigation of Bangor Operations Building The scope Is as defined in the attached after of March 21, 1990 III Testpit Program The scope is as defined in the attached letter dated April 4. 1990 90-189 Attachment B Payment for finel design services is amended as follows: Payment 2 $506,385* Pinel Design 50% Complete Payment 3 $506,385* Final Design Documents submitted to OWNER for Review Payment 6 $112,530* Completed Document submitted to OWNER Payment in the mount of $62,500 for Item I - Value Engineering Redesign will be due when work is completed and reviewed by the OWNED Payment in the mount of $32.800 for Item I1 - Forensic Investigation of Bangor Operation Building will be due when the written report is submitted and received by the OWNER Payment for Item III - Teatplt program in the mount of $15,000 will be due when the written report 1a submitted and reviewed by the OWNER. The lump am Is based on preparing construction procedural documents for federal and state loan assistance programs for financing or conventional municipal bond financing. IN WITNESS GRIME, the parties execute below: For the OWNER. City of Bangor dated this day of , 1990. By Name Edward A. Barrett Title City Manager For the ENGINEER, CH2M HILL Southeast .INC. dated this &ZLday oI 1990. .. BY:/ Bowers _ .. OOG// Na C1 fFozd W. Bove Title Vice-president �— Ernglneers — Planners '® Ecorrornisrs Scienfisis Mamh21,1990 BOS28581.A1 Mr. loan Murphy, P.E. City of Bangor, Maine City Haii 73 Harlow Street Bangor, Maine 04401 Subject: Engineering Fees, Bangor Secondary Treatment Dear john: 90-189 Based on nor predesigm fm= workshop held in Bangor on March 14,1990, we are able to calculate engineering fees forcompletion ofdediat work for the City of Bangor. Thesefee esama= are prepan:d pecan agreement wrN Ne atyof Bangmdared January 24, 1990. Our fee proposal is in dove parts: ,I. .:New prelims arydesign ofelements ofshepmject based on Value Engineering recommendations acceptedbythe Cityans] CMMH .r II Forensic Wwdgadon-swcmalconditionofffic xisting OpmdmsBuilding IH. Final Design Adeta descriptionofeachpmdonoffieworkfollows: I. Value Enamsering Ralesim A. VB Item No: A2 Use three VFDs vs four VFDs in mw sewage pump station - no additional predesign cost P.Zl Combine mumnstNiane pump station with gape gallery F-1 Change to fine bubble diffusion system to save energy Reduce pipe gallery width �$ Elivdnve valve orsesspUfforr¢tin gallery The above fouritems (D-21, E-1� E-5 and H -S) will result in a newpreliminaty design athe monolBhic structure. Included in this work are: - 1. New uxemmtpmcess design forthe activatad sludge system, including new pmcess modelsforeachof Nedesignconditiovs w2mwu smronorcan wsmntmwsnear. +orn mow 61.5232260 ftcv nsm::e<nawmo211r2517 Mr. John Murphy, P.E. City of Bangor Engineering Fees - Bangor Secondary Treatment Project 321,90 Page 2 2. Selection ofdifferevs blowers andaedesign of the air pipingsystem in dor blown.-.. buildingandpipegallety. Revi mofpow inquire mf Bangor Hydm 3. Design of &w bubble diffuser system including diffuser selection end piping layout 4. Design of new structure to house the air intake fil= system 5. Redesign of the gallery area to include the piping and valves associated with the intermediate pump station redesign Pnsineenna Co Paul MKeyser - Process Design Whours D ug Nohanger- slo r Symemn Wall SO hours JoMFnueon-Mop Review Wall Thickness 16 hours Al Wollaston Review 24 hours Pim Hawley -Project Management 36 hours Total hours 386 Labor Submtal 31,116 Expenses` 5,631 TotmiFees 36,747 *Expensesareestimatedm18.1%oflaborba onprojectwdaceexpenses. B. VRlmm H-Ifi: Use Urdpressum Systemfor Nonpotable Water - En_41_CC^.r Paul DeKeysv-Process Mechanical Design 12 hours Karen Rendall- Process Mechanical Design 40 hours Cliff Bowers - Design Consultation 8hom Al Wollman - Design Review 8 hours Jim Hawley-Pmjeo Mmuagement _l hunts Total hours 76 laboriiubtotal 6,904 Expenses 1,249 Total Fees 8,153 C. 3MIrem M -l: Redesign Maintenance Building forpwengineeredbuild'ing. No additional predesign mat Mr. John Murphy, P.S. City of Bangor 3/21190 EnginceringFees Bangor SecondaryTmstment Pmjmt Page 3 D. VSiremcll.t.0.20.30-15Redesign smaller Administration Building Luigi Grande - Architecoval Fleur Plans and 1l - Site Ds 80 hours Tom Balser ontrodtb Design 24 hours Ron Baker -Coned Room Design 16 hours Doug Noffsioger-Labmamry Design 24 bows Al W Hawley-]?rcjm Review 16 hours ren Hawley-Pmjew Maocalho nt 1lk hours 76 Total hours 1]6 tabor Subroml 14,901 Expenses 2,699 Total Fees 17,600 Total Ptimam Costof VE Redesign 62,500 B. E=asip Investigation ofH Over 8 '1d q Based on an inspection of the existing building by John FraueNaffer and Ralph Mahan, it .... was observed that there may be seucnsaldeierioratiou or damage to the existing Operations. Building caused by 25 years of weathering; sevlemenv and waterinvasion into the met, �. wells, oral Floss IntaiwandexmdoraadtingmdwaBdistwtionwaenornd. Basedon this inspection, werecnmmend that forensic desuoetive resting be employed m thoroughly ....: evaluate the structural condition of tbesvucnue beforemaior mechanical, electrical, and architectural improvements are added to this building. The proposed fee for this services is as follows: 1. Survey d the damaged areas exposed by opening the was, mof and flours for inspection by atwo-man ream _ 64 hours 2. Preparationof aackmapsoftbestructum 40 bows 3. Documentation of fitchngs 32 hours 4. Structural analysis 40 hours 5. Preparation of written report to the City 40 hours Items I start 5 above by J. A. Freuenhoffer, a Subcutisdnnt 6. Reviewer -Hurry McJ&H 40 hours ]. Project Management - Jim Hawley jA hours Total hours 280 Mr. John Murphy, PP. City 0f Bangs Bngiwan n ag Fees - Bangor Secondary Treatment Project 3/21H0 Page 4 Labor Subw al 27,764 Ealerm 5,036 Toral Fees 32,800 The abwe fee u for professional services only—It is assumed that Bangor will pronfi a the fo➢owing: 1. Mahsrucu manlh capable ofwarning the upper floors of the budding (7 days) 2. Bricklayer and laborer for removal and repair (5 days) 3. Supervisionofrepairancimplacemem 4. Concrete raw 5. Impaser harmer 6. Grinds 7. Materials far repairs such as brick, mortar, paint, seals, etc. 8. Other cool rental as required It is uNmown whether strucnual repairs will be moormmevded or whetha potential repairs should be made pmofthe general cousmcfim work m the ucondary treatment projector handled separately. III, Finalnesio We have prepared the final design drawing list as called for in our agreement with the City of Bangor based on the preliminary design report as mind by Value Engincering and other reviews. The drawing liar is numbed to the proposal. The drawings are summarised as follows: Esdmaa fil Esdmeve Contract Original CSment Cosy couract lilt- D= Tau civil 5 7 2,500 17,500 Architectural 26 30 2,700 81,000 Structural 60 77 3,300 254,00 Electrical 23 42** 4,400 184,800 I&.0 16 20 3,300* 66,000 Building Services 13 21 6,000 126,000 Process MahanicabCxneml U 72 5,500 396,000 Total 194 269 1,125,300 *.no cagal for P&IDsto the a deeignaid,not spam of the contract documenrs.:Ar the request of the City and in concurrence with CB2M IIIA , we have changed to full design P&ms for this proposal. The P& swiltbeus lforprep=aonofprocesscon=l software m the construction plan by CEJ2MHB.L and Bangor stall. **Include two dawings for Elanicd Subsmdm design Mr. John Murphy. P.E. City of Bangor Engineering Fees - Bangor Secondary Treatment Aoject 321190 Page 5 Ex oes Computer&CARD charges 65,000 Reprogmphics(printing) 27,000 Wool Processing 12,000 Specifications Processing 16,500 Travel 22,000 Meals&lodging 15,000 Telephome 2.700 Postage & Shipping 3,000 Miscellaneous r5." Total Expenses 168,200 Final Design Total latmand Expenses 1,293500 FeeStanan Value engineering redesign 62,500 Forensic engineering of existing operations building 32,800 Final Design 1,293,500 Taal 1,388,800 The above lump sum fee will be due whetberor not rhe exact number of drawings is produced. If more or fewer drawings as needed, rhe lump sum will remain unless a change in scope is agreed upon Paul l)eKeyser, Cliff Bowers, and Jim Hawley will nett with you on Monday. March 26, 1990, to inview duspropoWindemil. Thm�k youforyom consideration and efficient direction of oro cora Sincerely, CH2M HBY t" 9 Oluts L. Hawley, P.E. �Proje�ct Manan `�� o iTO Clifford W. Bowers, PE Pnnmpal-m-Charge cc: PaWDeKeysevIC112MIBLL �v' yLIT�