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Home My WebLink AboutC2013-026 - 1/18/2013 - NAAMENDMENT NO. 3 TO CONTRACT FOR PROFESSIONAL SERVICES The City of Corpus Christi, Texas hereinafter called "CITY ", and LNV. Inc., hereinafter called "CONSULTANT," agree to the following amendment to the Contract for Professional Services for Oso Water Reclamation Plant Nutrient Removal Project (Ammonia) (Project No. E09007) as authorized and amended by: Original A/E Agreement August 24, 2010 Motion No. 2010 -197 $550,059.00 Amendment No. 1 January 17, 2012 Administrative Approval $49,600.00 Amendment No. 2 January 31, 2012 Motion No. 2012 -028 $247,395.00 • Exhibit "A" to include the additional tasks as described in Amendment be submitted in be • The original contract SUMMARY OF FEES shall be modified 'and is attached as Amendment No. 3 Exhibit "A" for a revised fee not to exceed $48,900.00 (Forty Eight Thousand Nine Hundred Dollars and Zero Cents) for a total restated fee not to exceed $895.954.00 (Eight Hundred Ninety-Five Thousand Nine Hundred Fifty-Four Dollars and Zero Cents). Monthly invoices shall Exhibit "B ". All other terms and conditions of August 24, 2010 contract and amendments between the City and Consultant will remain in full force and effect. CITY OF COPUS CHRISTI Oscar R. Martine (Date) Assistant City Manager RECOMENDED Daniel Biles, P.E. (Efate) Director of Engineering Services Operating Department (Date) APPR D AS TO FORM: C I/ Office f Mana ement and Budget (bate) [*\VeW_z) 1_41 ��_ Legal bepartment (Date) LNV Inc. L C V DEC 1 7 2012 2013 -026 [Fagel MD. NO. 3 1118/13 of 2 )TEWATER\EO9407 OSO WATER RECLAMATION PLANT NUTRIENT REMOVAL PROJECT (AMMONIA)IAMENOMENT NO. INDEXED LNV, I 7M PMM M_ 801 Navigation, Suite 300 Corpus Christi, TX 78408 (361) 883 -1984 Office (361) 883 -1986 Fax ATTEST Armando Chapa, City Secretary Project No. E09007 Fund Source No. 550950 -4248- 00000- E09007 Wastewater C!P Encumbrance No. E09007ALN ENTERED O►�r� 05 2012 @,pp CON I hAt� a MIyhMiER AMD. NO. 3 Page 2 of 2 K:IENGINEERING DATAEXCHANGE1JENNIFERIWASTEWATER1EO9oo7 OSO WATER RECLAMATION PLANT NUTRIENT REMOVAL PROJECT (AMMONIA)6MAENDMENT NO. 31CONTRACT.DOCX LNV engineers I architects I contractors Solutions Today with a Vinton for Tomorrow December 3, 2012 Mr. Daniel Biles, P.E. Director of Engineering Services City of Corpus Christi P.O. Box 9277 Corpus Christi, TX 78469 -9277 Re: AMENDMENT NO.3 TO PROFESSIONAL SERVICES CONTRACT OSO WATER RECLAMATION PLANT NUTRIENT REMOVAL PROJECT (AMMONIA) (CITY PROJECT NO.E09007) Dear Mr. Biles: In response to City request, we are proposing the following small A/E amendment to the above referenced contract for additional services as described below. PROJECT DESCRIPTION & SCOPE OF SERVICES: The City of Corpus Christi, Texas, hereinafter called "City", and LNV, Inc. hereinafter called "Engineer", agree to the following Contract for Additional Services associated with the above referenced project. This effort includes the performance of several tasks associated with the Oso Water Reclamation Plant Nutrient Removal Project (Ammonia) which were not included in the original scope of work. The Scope of Services for this contract includes providing additional evaluations and recommendations regarding potential improvements to digestion and disinfection processes at the Oso WRP, for developing buffer zone & berm alternatives, and for preparing the necessary land acquisition documents and exhibits. Tasks are specified below: B. ADDITIONAL SERVICES 9. Oso WRP Regulatory Compliance A Implementation Plan Engineer will participate in two project meetings, as follows: 1. Preliminary evaluation review 2. Final Recommendations presentation Engineer will be responsible for preparation and distribution of meeting minutes. Engineer will provide the services of a Senior Engineer that will independently review the biosolids and disinfection alternatives analysis for technical merit and completeness. AMD. NO.3 EXHIBIT "A" Page 1 of 7 9.6 - BIOSOLIDS STABILIZATION PROCESS ANALYSIS 9.6.1 - Regulatory Review The existing residual solids treatment process at Oso WRP is adequate for disposal in a permitted landfill, where they comply with the US Environmental Project Agency (EPA) 258 regulations for municipal landfills. The level of stabilization required prior to biosolids use and disposal is driven primarily by the Federal 503 regulations as promulgated by the EPA and applicable State of Texas regulations. The primary purpose of these regulations is to protect public health and the environment. While current state and federal regulations governing biosolids stabilization and disposal have been relatively stable for the past decade, the City is concerned that future regulatory changes and /or the public's acceptance of biosolids for sustainable blosolids land application may require higher levels of biosolids treatment. Engineer will survey current regulations, and identify regulatory trends based on literature review and contact with TCEQ staff. Due to the uncertainty of future requirements, the team will also develop a single recommended conceptual process alternative for each level of biosolids stabilization as follows: 1. Class B digestion (for land application with precautions at dedicated sludge disposal sites) 2. Class A digestion (for land application without precautions) Each alternative will include a Class 5 cost estimate (suitable for the screening of alternatives) and estimated footprint for the Oso WRP's build -out conditions as Identified in the existing draft of TM-06. Processes to be evaluated are described in the following sections. Processes excluded from this analysis are: • Composting, due to large land requirement • Heat treatment, due to high energy costs • Alkaline (lime) stabilization, due to high chemical costs 9.6.2 - Aerobic Digestion If, for some reason, the City cannot continue to dispose of biosolids to landfill, then the existing solids handling process will need to be upgraded to produce, at minimum, a Class B sludge (MCRT of 60 days a@ 15 degrees C). The process evaluated will comprise the following: Amendment No. 3 Oso WRP Nutrient DW100310 Page 4 of 5 Removal (Ammonia) • Retrofit of existing aerobic digesters with fine bubble diffusers. • Increasing the aerobic digester volume sufficiently to achieve MCRT of 60 days a@ 15 degrees C per 503 regulations by addition of more aerobic digester tankage. • New aerobic digester volume will incorporate fine bubble diffusers. Analysis of the aerobic digestion process will include quantifying increased process air requirements. AMD. NO.3 EXHIBIT "A" Page 2 of 7 9.6.3 - Anaerobic Digestion The efficient operation of anaerobic digestion requires the addition of primary clarification to the liquid stream process train; otherwise the anaerobic process can be difficult to operate and maintain stability, effectively rendering the process infeasible. Engineer will confirm the feasibility of sitting primary clarifiers on the existing Oso WRP site in context of the current facilities master plan presented in TM -- 6. If primary clarifier sitting is not possible, this will be documented with narrative to be added to TM - 6 and anaerobic digestion will be deemed infeasible. Otherwise, an anaerobic digestion option will be documented that will include approximate footprint for build -out conditions and a Class 5 cost estimate. 9.7 - DISINFECTION PROCESS ANALYSIS 9.7.1 - Regulatory Review Engineer will survey current regulations, and identify regulatory trends based on literature review and contact with TCEQ staff. To accommodate the uncertainty of future requirements, the team will develop a recommended process alternative for two levels of disinfection: • Existing Permit levels — Enteroco=4 35189mpn1100ml • Non - Detect Enterococci Permit Levels Each alternative will include a Class 5 cost estimate and estimated footprint for build -out conditions. Disinfection processes to be evaluated are described in the following sections. 9.7.2 - Tertiary Filtration Disinfection processes are more effective if preceded by tertiary filtration. Engineer will develop foot print and a Class 5 cost estimate for a cloth filtration system sized for wet weather peak flows. It is assumed that tertiary filter influent pumping will be required. Based on foot print developed above, Engineer will verify the feasibility of siting filter facilities in context of the current facilities master plan presented in TM — 6. If siting of the filter /pump station is not possible, this will be documented with narrative added to TM — 6 and tertiary filtration will be deemed infeasible and will not be considered in developing other disinfection alternatives. 9.7.3 - ChlorinationMechlorination Engineer will evaluate options to improve the current chlorinationidechlorination process: 1. Chemical feed 2. Chemical mixing 3. Enhancing T10 in the existing contact basins. AMD. NO.3 EXHISIT "A" Page 3 of 7 Evaluation of new chlorine contact tankage is not included in this scope of work, as it appears that insufficient space is available to accommodate new chlorine contact tankage on the existing facilities site in context of other proposed improvements. . 9.7.4 - UV Disinfection Engineer will conduct a review of prior UV studies conducted by the City and will develop a summary narrative of these prior studies for inclusion in TM — 6. We understand that these studies have concluded that UV disinfection at the Oso WRP is not cost effective, and we assume that foot print and cost estimate will not be developed for a UV alternative as part of this scope of work. 9.8 - TECHNICAL MEMORANDUM The Engineer will incorporate the findings of these investigations into a second draft of TM-6 Oso WRP Regulatory Compliance and Implementation Plan. This will include the recommended alternatives for the two potential levels of digested sludge quality, and the two potential levels of disinfection required. Estimates of costs and footprints of each alternative will be presented. 13. Oso WRP Buffer Zone 13.1 — PROJECT MEETINGS • Engineer will coordinate and attend up to three (3) project meetings on an as needed basis. • Engineer will actively participate as the City's representative and will provide guidance to City staff in regards to additional future treatment infrastructure footprints, locations, and alternatives. • Engineer will provide copies of all exhibits to aid in discussion. • Engineer will prepare and distribute meeting minutes following each review meeting. 13.2 — COORDINATION WITH CITY AND TAMU -CC • Engineer will receive comments and input from the City and TAMU -CC and incorporate the required modifications into berm and buffer zone exhibits. • Engineer will review Buffer Zone Easement document prepared by TAMU -CC system and will provide comments and discussion points to the City, if any. AMD. NO.3 EXHIBIT "A" Page 4 of 7 93.3 — PREPARING BERM & BUFFER ZONE EASEMENT DOCUMENTS • Engineer will prepare multiple altematives (4 total) berm and buffer zone exhibits to illustrate different berm design options. Criteria for berm designs include maintenance, drainage, ability to provide a visual barrier of plant from TAMU -CC property, accessibility to existing underground infrastructure, potential plant expansion, etc. The four (4) alternatives can be described as follows: oTree barrier — Trees will boarder the west planet easement and the berm will boarder the south plant easement. This option minimizes impact on drainage and accessibility to existing underground forcemain but does not provide a full visual barrier of the plant. o Reroute forcemain — Rerouting the existing forcemain around the berm allows for a better visual barrier while maintaining access to the forcemain, but it will require additional materials and labor for installation of the new forcemain. oV -cut in berm — Providing a "v -cut" in the berm located directly above the existing underground forcemain will maintain accessibility to the foroemain while providing a visual barrier on both sides of plant except for the section over the forcemain. oComplete berm with parallel fon:emaln section — Providing a new section of pipe parallel to the existing forcemain below the proposed berm for future tie-in will allow for a solid berm barrier with the ability to tie -in to the new pipe section if future forcemain replacementlrehabilitation is required. • Engineer will revise exhibits regularly upon client review and/or design change. . • Engineer will provide an alternative recommendation based on the criteria mentioned above and with the City's best interests in mind. • Engineer will prepare final signed and sealed exhibit with associated metes & bounds description to be used, as an attachment in the final executed easement document. Document will clearly identify existing and proposed buffer zones by color coding and/or hatching. SCHEDULE: All work under this contract shall be completed by the Engineer by January 31, 2013. FEES: A. Fee for Additional Services Authorized. The City will pay the Engineer a lump sum fee not to exceed $ 48.900 for provided services specified in this contract. The fee will be full and total compensation for services and for all expenses incurred in performing these services. Engineer will submit monthly statements for basic services rendered. Each statement will be based on the project percent completion at the time of billing. City will AMD. NO.3 EXHIBIT "A" Page 5 of 7 make prompt monthly payments in response to Engineer's monthly statements. B. Summary of fees. See below. SUMMARY OF AIE FEES November 2012 - FEES AMD. NO.3 EXHIBIT "A" Page 6 of 7 ORIGINAL CONTRACT AMD. NO.1 AMD. NO.2 AMD..N.O. 3 TOTAL BASIC SERVICES 1. Preliminary Phase $ 97,454.00 $ - $ 14,890.00 $ - $ 112,344.00 2. Design Phase $ 139,508.00 $ - $ 17,820.00 $ - $ 157,328-00 3. Bid Phase $ 8,077.00 $. - $ 5,240.00 $ - $ 13,317.00 4. Construction Phase $ 33,929.00 $ - $ 1,760.00 $ - $ 35,689.00 Subtotal Basic Services $ 278,968.00 $ - $ 39,710.00 $ - $ 318,678.00 ADDITIONAL SERVKES ALLOWANCE 1. Permitting $ 8,924.00 $ - $ - $ - $ 8,924.00 2. Topographic Survey $ 8,670.00 $ - $ - $ - $ 8,670.00 3. Environmental Issues $ - 4. Construction Observation Services $ .. 49,748.00 $ - $ 142,500.00 $ - $ 192,248.00 5. Start-Up Services $ 19,124.00 $ - $ - $ - $ 19,124.00 6. Warranty Phase $ 5,612.00 $ - $ - $ - $ 5,612.00 7. Provide SCADA Documentation $ 3,511.00 $ _ $ - $ - $ 3,511.00 8. Pilot Study - Breakpoint Facility $ 71,536.00 $ - $ - $ - $ 71,536-00 9. Oso WRP Reg. Compliance.& Imp. Plan $ 72,679.00 $ - $ 8,685.00 $ 30,900.00 $ 112,264.00 10.Oso WRP Process Modeling $ 31,287.00 $ - $ - $ - $ 31,287.00 11. Step Feed Pilot Study $ - $ 49,600.00 $ - $ 49,600.00 12. Step Feed Pilot Sampling & Analysis $ - $ - $ 44,500.00 $ - $ 44,500.00 13. Oso WRP Buffer Zone $ _ $ _ $ 12,000.00 $ 18,000.00 $ 30,000.00 Subtotal Additional Services $ 271,091.00 $ 49,600.00 $ 207,685.00 $ 48,900.00 $ 577,276.00 TOTAL AUTHORIZED FEE $ 550,059.00 $ 49,600.00 $ 247,395.04 $ OQrQQ $ 895,954.00 Council Approval Admin Approval Council Approval Admin Approval AMD. NO.3 EXHIBIT "A" Page 6 of 7 Please feel free to contact nee, should you have any questions. Sincerely, LNV,Inc. TBPE Fine No. F-M Dan S. Leyendecker, P.E. President AMD. NO.S EXHIBIT "A" Page 7 of 7 � Wo o, 0 N � w Basic Services: Preliminary Phase Design Phase Bid Phase Construction Phase Subtotal Basic Services Additional Services: Permitting Warranty Phase Inspection Platting Survey 4 & M Manuals SCADA Subtotal Additional Services Summary of Fees Basic Services Fees Additional Services Fees Total of Fees COMPLETE PROJECT NAME Project No. XXXX Invoice No. 12345 Invoice Date: Sample form for: Payment Request Revised 07/27/00 Total Amount Previous Total Percent Contract Amd No. 1 Amd No. 2 Contract Invoiced Invoice Invoice Complete $1,000 $0 $0 $1,000 $0 $1,000 $1,000 100% 2,000 1,000 0 3,000 1,000 500 1,500 50% 500 0 250 750 0 0 0 0% 2,500 0 1,000 3,500 0 0 0 0% $6,000 $1,000 $1,250 $8,250 $750 $1,500 $2,500 30% $2,000 $0 $0 $2,000 $500 $0 $500 25% 0 1,120 0 1,120 0 - 0 0 0% 0 0 1,627 1,627 0 0 0 0% TBD TBD TBD TBD TBD TBD TBD 0% TBD TBD TBD TBD TBD TBD TBD 0% TBD TBD TBD TBD TBD TBD TBD 0% $2,000 $1,120 $1,627 $4,747 $500 $0 $500 11% $6,000 $1,000 $1,250 $8,250 $750 $1,500 $2,500 30% 2,000 1,120 1,627 4,747 500 0 500 11% $8,000 $2,120 $2,877 $12,997 $1,250 $1,500 $3,000 23% SUPPLIER NUMBER TO BE ASSIGNED BYCnT — PURCHASING DIVISION Cit y of CITY OF CORPUS CHRISTI C . pus DISCLOSURE OF INTEREST City of Corpus Christi Ordinance 17112 as amended, requires all persons or firms seeking to do business with the City to provide the following information. Every must be answered. If the question is not applicable, answer with. NA". See reverse side for Filing Requirements, Certifications and definitions. COMPANY NAME: LNV Engineering P. O. BOX: STREET ADDRESS: 801 Navigation, Suite 300 CITY: Corpus Christi ZIP: 78408 FIRM 1S: 1. Corporation 2. Partnership 8 3. Sole Owner ❑ 4. Association u 5. Other If additional space is necessary DISCLOSURE QUESTIONS , please use the reverse side of this page 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) NIA 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 NIA 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 Dan S. Le endecker Marina Advisory Board 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 soject of this contract and has an ownership interest' constituting 3% or more of the ownership in the above named "firm.- Name Consultant N/A FILING REQUIREMEN'T'S 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: Dan S. Leyendecker, P. E. Title: President (TYJW ar Print) Signature of Certifying Date: Person: DEFINIITIONS 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. c. "Official." The Mayor, members of the City Council. City Manager, Deputy City Manager, Assistant City Managers, Department and Division Heads, and Municipal Coun Judges of the City of Corpus Christi, Texas. f. "Ownership Interest." Legat 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," Arty person or firm, such as engineers and architects, hired by the City of Corpus Christi for the purpose of professional consultation and recommendation,