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Home My WebLink AboutContract 45904-A2 CITY SECRETAW CONTRACT NO. AMENDMENT No.2 TO CITY SECRETARY CONTRACT No. 45904 WHEREAS, the City of Fort Worth (CITY) and CDM Smith, (ENGINEER) made and entered into City Secretary Contract No. 45904 , (the CONTRACT) which was authorized by M&C C-26890 on the 22nd day of July, 2014 in the amount of $ 2, 480, 156 . 00 ; and WHERAS, the CONTRACT was subsequently revised by Amendment No. 1 in the amount of $20, 900 . 00 which was administratively authorized on February 11, 2015; and WHEREAS, the CONTRACT involves engineering services for the following project : Peak Flow Management Facilities at Village Creek Water Reclamation Facility; and WHEREAS, it has become necessary to execute Amendment No. 2 to the CONTRACT to include an increased scope of work and revised fee. NOW THEREFORE, CITY and ENGINEER, acting herein by and through their duly authorized representatives, enter into the following agreement, which amends the CONTRACT: 1 . Article I of the CONTRACT is amended to include the additional engineering services specified in a proposal dated January 23, 2015, a copy of which is attached hereto and incorporated herein. The cost to City for the additional design services to be performed by Engineer totals $49, 891. 00. (See Attached Funding Breakdown Sheet, Page -3-) 2 . Article II of the CONTRACT is amended to provide for an increase in the fee to be paid to Engineer for all work and services performed under the Contract, as amended, so that the total fee paid by the City for all work and services shall be an amount of $2, 550, 947. 00. m 3 . m Z All other provisions of the Contract, which are not expressly M amended herein, shall remain in full force and effect . a City of Fort Worth C Professional Services Agreement Amendment Template OFFICIAL RECORD Z PMO Official Release 8/1/2012 Cnn Page 1 of 3 CITY SECRETARY FT.WORTH,TX EXECUTED and EFFECTIVE as of the date last written by a signatory, below. APPROVED: City of Fort Worth ENGINEER CDM SMITH --5iz-jo 6;L1 V Fernando Costa J. Dan Shannon, P.E. Assistant City Manager Senior Vice President DATE: 40-1 /i DATE: e le 9 115- APPROVAL RECOMMENDED: Jo Robert Carman Di?rector, Water Department APPROVED AS TO FORM AND LEGALITY: M&C: NO M&C REQUIRED Date : Assistant City Attorney ATTEST: Q��R��'G O a a o70 izi ayJ �etary r $ City S ��0®� OFFICIAL RECORD CITY SECRETARY City of Fort Worth FT.WORTH,TX Professional Services Agreement Amendment Template PMO Official Release 8/1/2012 Page 2 of 3 FUNDING BREAKDOWN SHEET City Secretary No. 45904 Amendment No. 2 Department Fund-Account-Center Amount PE4 5 P275-531200-701300200931 $49, 981. 00 Total : $49, 981 . 00 City of Fort Worth Professional Services Agreement Amendment Template PMO Official Release 8/1/2012 Page 3 of 3 CDM Smith 100 Throckmorton Street,Suite 600 Fort Worth,Texas 76102 tel: 817 332-8727 fax: 817 820-0450 January 23,2015 Mrs.Madelene Rafalko,P.E. Fort Worth Water Department 1000 Throckmorton Street Fort Worth,Texas 76102 Subject: Village Creek Water Reclamation Facility Peak Flow Management Facilities Sludge Storage Feasibility Study-Revised Scope and Fee Dear Madelene: Enclosed is our revised proposal for evaluating the feasibility of storing digested sludge in the peak flow storage basin.The major change in this scope of work is that CDM Smith will evaluate odor control strategy and prepare high level cost estimate. It is our understanding that Village Creek Water Reclamation Facility(VCWRF) is considering options to increase their digested sludge storage as part of their immediate biosolids improvements plan.Two options to be evaluated are: 1. Using the peak flow storage basin(PFSB) 2. Constructing separate storage tanks to store B-10 million gallons (MG) of digested sludge This feasibility study will evaluate the impacts to the current PFSB layout,design,and construction cost and determine if there is a cost savings compared to installing separate sludge storage tanks and pump station. Odor will also be addressed to identify any potential odor impacts to the surrounding area. We are currently scheduled to deliver 30%design December 19,2014.Further design of the peak flow storage basin has been suspended until we come to a resolution on the sludge storage concept.The Feasibility Study Technical Memorandum(TM) will be delivered in conjunction with the 30%design package.At this point McCarthy will prepare a cost model for the original basin concept and the two options presented in the Feasibility Study TM.The three concepts will be discussed in detail at the 30%review workshop with the goal of selected a concept to proceed with design.Once a concept is selected,CDM Smith requests an additional 30 days to complete 30%design for the PFSB.Barring delays for option selection,CDM Smith will be able to meet the current 60%deadline for April 17,2014. As part of our feasibility study CDM Smith will prepare a TM summarizing our evaluation,findings and recommendations for digested sludge storage.Our evaluation will include the following: ■ Evaluate two options for temporary digested sludge storage: 1. PFSB Concrete Basin:in this option we will look at dividing the concrete basin to accommodate sludge storage.The 40 MG basin will become two basins (30 MG for peak flow and 10 MG for Ci WATER+ENVIRONMENT+TRANSPORTATION+ENERGY+FACILITIES CDM smith Mrs.Madelene Rafalko January 23,2015 Page 2 sludge).The sludge storage basin will be open to the atmosphere.These basins will be connected with valves or gates to allow both basins to be used for peak flow storage when sludge is not present.A new dry-pit pump station will transfer solids to the existing sludge storage tanks at the Dewatering Facility. 2. Above Ground Storage Tanks:in this option we will look at strategically locating two 4-5 MG above ground concrete or steel storage tanks located outside the SOL footprint and near the Dewatering Facility area.These tanks will be covered and include a pump station to transfer sludge to the existing sludge storage day tanks at the Dewatering Facility. ■ Evaluate pipe materials,size,and rough alignment from existing Solids Dewatering Facility for the both storage options. ■ Identify design criteria and develop a conceptual dry-pit pump station for both storage options to pump sludge to the Solids Dewatering Facility from the designated sludge storage area,and also recirculate sludge to reduce settling. ■ Prepare conceptual figures of the basin layout,pump station,site layouts,and profiles for both storage options. ■ Evaluate odor control strategy and prepare cost estimate for recommended technology. ■ Develop conceptual quantity takeoffs for pipe length,earthwork,equipment(number of pumps, valves,level meter(s),etc.) for both storage options. ■ Provide conceptual quantities and AutoCAD files to McCarthy for pricing for both storage options. Odor impacts on surrounding communities from sludge storage(in either option) are unknown at this time and may not be an issue.We do not know how the emission characteristics or sludge characteristics will change with extended sludge storage(weekends),especially during hot summer days.There could be potential odor impacts when dewatering operations start back up over an extended weekend.In this case,the City could consider a misting system,similar to ones used and landfills or compost facilities,to cost effectively mitigate temporary odors on an intermittent basis.The City should consider investigating potential odor impacts once a concept is selected.CDM Smith can help the City define what the investigation should entail. Please let me know if you have any questions.We look forward to receiving your written notice to proceed and assisting the City with selecting a cost effective approach to address VCWRF's peak flow and biosolids management challenges. Very truly yours, Amy Robinson,P.E.,BCEE Sr.Project Manager CDM Smith Inc. CJ i CDM Smith Mrs.Madelene Rafalko January 23,2015 Page 3 Attachments: cc: Douglas Varner,CDM Smith file i� vM Ln .- aoNrn rn .- N 0� COcl) CD — O d O (� O �CDO1- OO 00 N l9 �_ CO � O:NON O H EF}Efl'i 601,U)er.)6q H3' 6f3 16A I O CO O) co M (� O I-- OO N O N d' L[) >- Lf) Lo N CD 04-1 IM (� Efj fA b9 EA EA Ef3 CH 69 00 0 0 0 04 0 0 LO LO LO m M U 0 - - — -I Lei rn cu L J I 'E fA uc'U)(f}613 U)-H9 H} fA Cf) ` I =O OO OO OO (O "t (D 04 N 2 c I N (3) 04 N y N , O �- CD LL 0 �+ LLI _O d �1 Ln •N � LLo N 0 LL c, <Y <Y N N E M V E y 0) Z 69 Imo. U- �� LL _..-.'i y 0 00 = 0 `o C) 0 L 'j N N C14!C4 NI r N 30 a. 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