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HomeMy WebLinkAboutResolution - 2015-R0046 - Terracon Consultants, Inc. - 02/12/2015Resolution No. 2015-R0046 February 12, 2015 Item No. 5.7 RESOLUTION BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK: THAT the Mayor of the City of Lubbock BE and is hereby authorized and directed to execute for and on behalf of the City of Lubbock, an Amendment to a Professional Services Agreement, by and between the City of Lubbock and Terracon Consultants, Inc., and all related documents. Said Amendment is attached hereto and incorporated in this Resolution as if fully set forth herein and shall be included in the minutes of the Council. Passed by the City Council this February 12, 2015 '2015. - i Z'46/ / GL . RO RTSON, MAYOR ATTEST: R be ca Gana, City Secretary APPROVED AS TO CONTENT: R. Keith Smith, P.E., Director of Public Works Aubrey Spe4rT.E., Director of Water Utilities owl Z41MAU111M.1 $X%iT1MU L. es-Amend.Prof Srvs Agrmnt-Tercacon Consultants, Inc 7.15 January 2015 Resolution No. 2015-R0046 STATE OF TEXAS COUNTY OF LUBBOCK SIXTH AMENDMENT TO PROFESSIONAL SERVICES AGREEMENT This Sixth Amend}nent to Professional Service Agreement is entered into this j -2. day of � , 2015 between the City of Lubbock, a Texas municipal corporation (hereinafter called "the City") and Terracon Consultants, Inc. (the "Engineer"), a Delaware corporation. WHEREAS, the Engineer and the City have previously entered into certain Professional Service Agreement dated November 20, 2008, Resolution No. 2008.R0453 (Contract #8773) (hereinafter called "the Agreement"); and WHEREAS, the Engineer and the City previously amended the Agreement on January 26, 2012, Resolution No. 2012-R0041; and WHEREAS, the City and the Engineer hereby desire to further amend said agreement. NOW THEREFORE, the City and the Engineer hereby agree to amend the Agreement as follows: 1) That "Attachment A" of the Agreement is hereby substituted and replaced with "Attachment A1.2015" that is that is attached hereto. 2) This amendment to the Agreement shall be effective upon execution. The remainder of the Agreement shall remain in full force and affect except as changed herein. Jan 2015 Page 1 of 11 January 2015 IN WITNESS WHEREOF, the parties have executed this Agreement by their duly authorized representatives as of the date first written above. CITY OF LUBBOCK GLEN '•: ;T • •' ATTEST: Rebe a Garza, City Attorney APPROVED -AS -TO CONTENT: R. Keith Smith, P.9., Director of Public Works Aubrey Spel , P.A., Director of Pct Warr ' ,41e6 APPROVED AS TO FORM: TERRACON By: Name: Title: Jan 2015 Page 2 of I 1 January 2015 ATTACHMENT A1.2015 Described below is the scope of work and associated fees for Terracon to provide consulting services to the City of Lubbock for the Hancock Land Application Site (HLAS) and Lubbock Land Application Site (LLAS). This exhibit outlines specific tasks, budgets, and not to exceed amounts for Terracon to complete the scope of work. Terracon's fee schedule that will be used for negotiating fees for Additional Services not included in this scope of work is also attached. Specific tasks to allow Terracon to assist the City to define project strategies and/or interface with the Texas Commission on Environmental Quality (TCEQ) are included in this scope of work. In addition, Terracon has included tasks to manage project data and prepare state mandated routine annual monitoring reports for the HLAS and LLAS for submission to the TCEQ in May 2015. The 2015 Annual Report for the LLAS will include an updated groundwater model for the LLAS that was originally revised for the 2010 Annual Report. In addition, specific tasks are included to evaluate additional information pertaining to water and soil quality, and groundwater elevations in the vicinity of the LLAS and HLAS. Additional tasks for which the specific scope cannot be defined at this time such as efforts needed to respond to TCEQ comments or questions pertaining to previous reports pertaining to adjusted recovery rates for the existing LLAS groundwater recovery infrastructure , the possible installation of groundwater wells, and additional efforts to prepare a more comprehensive revised remediation plan for the LLAS in 2015 may be negotiated as Additional Services and may be added to this Agreement by amendment hereof. Task I — Strategic Planning and Meetings This task includes the review of updated project data as necessary, site visits, strategic planning with the City of Lubbock, and interfacing with City of Lubbock Staff and TCEQ regulators. Terracon will meet with City of Lubbock personnel to discuss strategic planning for the LLAS and HLAS including regulatory compliance and closure issues. The short-term planning discussions will include wastewater operations, farming operations, and remediation activities at the LLAS. The long-term planning discussions will include the wastewater development and water use planning and the beneficial use of the property. The long-range planning will also be used to develop a monitoring, remediation, and closure strategy for the LLAS. At least one strategic planning meeting in Lubbock is proposed during the course of the year. Additional project meetings will be scheduled as necessary. Terracon will assist the City of Lubbock with their discussions with the TCEQ as necessary. The LLAS is currently operated, monitored, and remediated pursuant to the permit effective January 1, 2012. Terracon will assist the City of Lubbock as necessary, and as requested, to evaluate technical issues pertaining to the permit. If requested, and if adequate time exists/remains within the period for this annual contract amendment, a detailed scope of work will be prepared as a supplemental task in 2015and/or2016 to prepare a more comprehensive revised groundwater remediation plan for the LLAS in 2015/2016. Task 2 — HLAS Annual Budget Terracon shall complete two main project tasks related to compliance with the City of Lubbock's TPDES permit No. 10353-002 related to the HLAS. The project tasks and associated work scope are summarized below. Imuan,2015 Page I of 7 January 2015 HLAS Data Manaeement This task will involve database file management including database updates, preparation of supporting graphs, and review of data provided by the City of Lubbock during the fiscal year. The City of Lubbock will collect onsite groundwater samples, gauge monitor wells, and procure laboratory services. The city - contracted laboratory will be NELAC accredited. Sampling data will not be reviewed and reported pursuant to TRRP-13 (Review and Reporting of COC Concentration Data). Thus, Terracon has not included a usability review of the data or the preparation of a Data Usability Summary (DUS). The following data will be collected, compiled, and included in the databases during the fiscal year • Annual groundwater level measurements from thirty-one offsite irrigation wells measured by the High Plains Underground Water Conservation District; • Quarterly nitrate data from southern onsite monitor wells (MW -IA, MW -2A, MW -34, MW -35, and MW -36); • Semi-annual and annual nitrate data from 36 onsite wells; • Annual groundwater quality data from 36 onsite wells; • Annual groundwater quality field sampling data (i.e., pH, conductivity, oxidation/reduction potential, dissolved oxygen, and temperature) from 36 onsite wells; and • Annual groundwater data from offsite private wells sampled as part of the bottled water program administered by the City of Lubbock. Terracon will integrate laboratory and field collected data into existing databases. Terracon will review the data for trends and spatial distribution. Throughout the year, as data are compiled and reviewed, Terracon will evaluate the data and communicate findings with the City of Lubbock staff and attorneys. HLAS Annual Report This task involves preparation of the HLAS annual report. The HLAS annual report will summarize the project history and monitoring activities, and will include tabular sampling and gauging results and maps of nitrate iso -concentrations and potentiometric contours. Terracon will prepare a draft report that will be submitted to the City of Lubbock and attorneys for review and comments. Terracon will work with the City of Lubbock and attorneys to address any comments and will prepare a final report. The report will be sealed by a licensed professional geoscientist or licensed professional engineer. The report is due to the TCEQ by the end of May. Task 3 — LLAS Annual Budget Terracon shall initially complete three main project tasks related to compliance with the City of Lubbock's TPDES Permit No. 10353-002 related to the LLAS and one supplemental task. The three project tasks and associated work scope are summarized below. LLAS Data Manaeement This task will involve database file management including database updates, preparation of supporting graphs, and review of data provided by the City of Lubbock during the fiscal year. The City of Lubbock will collect onsite groundwater samples, gauge monitor wells, and procure laboratory services. The city - contracted laboratory will be NELAC accredited. Sampling data will not be reviewed and reported pursuant to TRRP-13. Thus, Terracon has not included a usability review of the data or the preparation of a DUS. January 2015 Page 2 of 7 January 2015 The following data will be collected, compiled, and included in the databases during the fiscal year: • Monthly groundwater production data for approximately 40 recovery wells (if available from the SCADA system) and the booster pump station; • The amount of water sent to the JBLS, golf course, cemetery, and other potential irrigated areas; • Semi-annual nitrate data from approximately 150 site wells; • Annual static water level data from approximately 150 site wells; • Annual groundwater quality data from approximately 150 site wells; • Annual groundwater quality field sampling data (i.e., pH, conductivity, oxidation/reduction potential, dissolved oxygen, and temperature ) from approximately 150 site wells; and • Quarterly North Fork data upstream of FM 400 and monthly lake nitrate data; and • Annual groundwater data from offsite private wells sampled as part of the bottled water program administered by the City of Lubbock. Terracon will integrate laboratory and field collected data into existing databases. Terracon will review the data for trends and spatial distribution. Throughout the year, as data are compiled and reviewed, Terracon will evaluate the data and communicate any findings with the City of Lubbock staff and attorneys. Groundwater Mode! Update This task will involve preparing an annual update to the existing MODFLOW/MT313 computer model prepared for the LLAS that was revised by Terracon for the 2010 LLAS Annual Report. As directed by the TCEQ, the May 2015 LLAS annual report will include a discussion of the revisions and update to the groundwater MODFLOW/MT3D model to include a re -calibration of the model for 2015 to simulate flow conditions and water quality at the LLAS over the next five year period. Terracon will procure the services of Dr. Ken Rainwater and his associates for the groundwater modeling task to support the preparation and submission of the 2015 LLAS Annual Report, and they will focus on those modeling tasks necessary to re- calibrate the model based on comparison of modeled data to actual data from 2014 and the previous years. Once the model has been calibrated to match approximate groundwater levels and nitrate concentrations, the current nitrate concentration data will be input into the model to generate a prediction of future conditions for a 5 -year predictive period in accordance with the current Remediation Plan. The modeling description and results will be presented in the 2015 LLAS Annual Report as described below. In addition, this task will also include ongoing evaluation of the model throughout the remainder of the year with respect to subsurface conditions and will include a comparison of actual available flow from the City's SCADA system data vs. modeled flows and evaluation of water levels and nitrate concentrations as they pertain to the model. LLAS Annual Report This task will involve preparation of the LLAS annual report. The LLAS annual report will summarize the project history and monitoring and remediation activities, and will include tabular sampling and gauging results and maps of nitrate iso -concentrations and potentiometric contours. The May 2015 LLAS annual report will also include a discussion of the 2014 LLAS MODFLOW/MT313 model based on the updated nitrate distribution in groundwater and expected groundwater withdrawal rates, wastewater application rates, and typical rainfall. Nitrate data from the offsite bottled water sampling program will also be evaluated. Terracon will prepare a draft report that will be submitted to the City of Lubbock and attorneys for review and comments. Terracon will work with the City of Lubbock and attorneys to address any comments and will prepare a final report. The report will be sealed by a licensed professional geoscientist or licensed professional engineer. The report is due to the TCEQ by the end of May each year. January 2015 Page 3 of 7 January 2015 Task 4 - Project Management / Communications During the course of the project, Terracon will need to provide overall project management duties, provide ongoing data evaluation for miscellaneous tasks, communicate and meet with the City of Lubbock staff, attorneys, the TCEQ, and with Agri -Waste Technologies (AWT) regarding routine matters or to address questions that arise from operations and management of the HLAS and LLAS. This would also include ongoing technical consultation to support sampling activities for the onsite and offsite areas. Initial meetings with City of Lubbock staff and/or the TCEQ in Austin are addressed in Task 1. Additionally in Task 4, Terracon anticipates an additional meeting with City of Lubbock to update project status and discuss additional needs that may arise. Task 5 — Design Basis Optimization Study, Phase H Terracon will subcontract with Dr. Ken Rainwater and his associates to prepare Phase II of the Design Basis Optimization Study for the LLAS. The purpose of the remedial system design optimization for the LLAS is to automate—in a smart manner—the search for the best strategy to remediate the plume while simultaneously honoring all the subsurface flow and transport processes and project economics. The design optimization study has been divided into two phases to allow for the necessary interaction with City staff to ensure that the results of the study provide a remediation design for the LLAS that achieves the long-term goals of the City of Lubbock within budget constraints. Phase I included tasks to prepare the model and optimization framework based on information/direction obtained from City staff, a workshop with staff to gain acceptance of the design basis assumptions and to determine the specific scenarios to be optimized, and document the design objectives, assumptions, and modeling and optimization tools. The work completed in Phase I produced a fully functional and substantially complete integrated PBMO tool linked and tested with the LLAS groundwater flow and transport model along with a test optimization run to examine the degree of difficulty of the formal optimization. The estimated effort required for the Phase II formal optimization is based on our understanding of the degree of difficulty and is presented below. Please note that based on the complexity of this task and the anticipated level of discussion with the City of Lubbock staff as it may relate to future capital and operating and maintenance costs for implementing changes to the overall remedial effort, the scope and associated costs to submit a formal revised LLAS remediation plan to the TCEQ has not been included in the scope and budget for this annual contract amendment. Depending on the progress made in 2015, Terracon may prepare a supplemental work scope and budget to prepare a more comprehensive revised remediation plan in the future. Phase II Tasks (2015) Conduct optimization runs using the integrated PBMO tool linked with the LLAS groundwater flow and transport model. These simulations will provide the information needed to achieve the performance objectives of the remediation system subject to constraints on the optimization solution identified during Phase I. The results of the optimization simulations will include extraction well locations, pumping rates, and schedules of operations necessary to effect the remediation system goals. More than one feasible solution may be identified. January 2015 Page 4 of 7 January 2015 2. Update the Design Basis Report to fully document the optimization solution(s). This report will include all of the assumptions used in developing the optimization solution along with a discussion of uncertainty in the solution. 3. Final workshop to present results. A final workshop will be scheduled with City staff to present optimization results and discuss implementation of the solution. Estimated costs to complete Tasks 1 through 5 are presented in Table 1. Please note that these costs are conceptual in nature and were prepared for planning purposes only. In some cases, written cost estimates were received from selected vendors and contractors and these estimates are subject to change depending on the actual timeframe for the work and the exact nature and scope of the actual work performed. In other circumstances, no written estimates were received and some costs were estimated based on Terracon's experience with this and similar projects. It is also assumed that sampling technicians from the City of Lubbock will be available to assist with the sampling activities to facilitate the overall effort. January 2015 Page 5 of 7 January 2015 Project Summary Budget Terracon will perform this project on a time and materials basis using the attached Fee Schedule. This proposal includes both one-time and routine activities. This proposal includes the annual costs to perform routine tasks once. The project summary budget for Terracon to perform work defined related to the above HLAS and LLAS tasks is as follows: ESTIMATED FEES FOR PROFESSIONAL SERVICES Task 1 — Strategic Planning and Meetings $8,600 Task 2 — HLAS (annual budget) $19,800 Task 3 — LLAS (annual budget) Task 3.1 — LLAS Data Management $13,600 Task 3.2 — Groundwater Model Update $35,500 Task 3.3 — LLAS Annual Report $20,000 Task 4—Project Management (annual budget) $15,000 Task 5 — Design Basis Optimization Study for LLAS Task 5.1 — Conduct Optimization Runs with the LLAS Model $68,500 Task 5.2 —Update Design Basis Report $20,000 ...Task 5.3 — Final Workshop $25,000 TOTAL TASKS 1 THROUGH 5 $226,000 January 2015 Page 6 of 7 December 2014 1 rarracon ENVIRONMENTAL CONSULTING SERVICES FEESCHEDULE HOURLY FEES FOR PERSONNEL Environmental Professional includes Environmental Engineer, Environmental Scientist, Geologist and Hydrogeologist ExpertWitness.........................................................................................................................................$175.00 DisposableBailer (each)............................................................................................................................$20.00 Senior Principal / Program Manager.......................................................................................................$160.00 GEM 2000 Gas Analyzer & Extraction Monitor (per day)..................................................................... Principal/Senior Consultant..................................................................................................................... $155.00 GroupManager........................................................................................................................................$125.00 Handheld GPS Instrumentation (per day)..................................................................................................$45.00 Senior Environmental Engineer............................................................................................................... $125.00 SeniorProject Manager........................................................................................................................... $110.00 ProjectManager....................................................................................................................................... $100.00 EnvironmentalProfessional V.................................................................................................................$100.00 LowFlow Air Pump (Per day)................................................................................................................... EnvironmentalProfessional IV..................................................................................................................$95.00 Low Flow Sampling Cell (includes YSI/Horiba & flow cell).................................................................$150.00 EnvironmentalProfessional III.................................................................................................................. $85.00 EnvironmentalProfessional II...................................................................................................................$75.00 PeristalticPump (Per day)......................................................................................................................... EnvironmentalProfessional I....................................................................................................................$65.00 pH/Conductivity/Temperature Meter (per day).........................................................................................$50.00 Environmental Technician II.....................................................................................................................$65.00 PIDMeter (per day)................................................................................................................................. EnvironmentalTechnician I......................................................................................................................$60.00 SampleKit (per boring)............................................................................................................................. AdministrativeAssistant............................................................................................................................$55.00 SampleKit (per well)................................................................................................................................ Draftsperson/CAD Operator......................................................................................................................$55.00 Submersible Purge Pump (Per day)......................................................................................................... WordProcessor.........................................................................................................................................$50.00 Trimble Pro XRS Pathfinder Backpack GPS (per day)...........................................................................$165.00 Clerical...................................................................................................................................................... $45.00 TRAVEL EXPENSES Reimbursable Expenses are charged at cost plus 10%. VehicleCharge (local), per day.................................................................................................................$60.00 Mileage(per mile)....................................................................................................................................... $0.58 PerDiem.................................................................................................................................................. $125.00 Document Delivery/Overnight (per standard package)............................................................................. $20.00 FIELD EXPENSES DevelopmentPump (Per day).................................................................................................................... $40.00 DisposableBailer (each)............................................................................................................................$20.00 GEM 2000 Gas Analyzer & Extraction Monitor (per day)..................................................................... $200.00 Hand Auger(per da .................... $25.00 Handheld GPS Instrumentation (per day)..................................................................................................$45.00 HighFlow Air Pump (Per day)..................................................................................................................$50.00 IAQ Instrumentation (QTRAK, Moisture Meter) (per day)...................................................................... $50.00 InterfaceProbe (per day)........................................................................................................................... $85.00 LowFlow Air Pump (Per day)................................................................................................................... $35.00 Low Flow Sampling Cell (includes YSI/Horiba & flow cell).................................................................$150.00 Low Flow Bladder Pump (Per day)......................................................................................................... $100.00 PeristalticPump (Per day)......................................................................................................................... $50.00 pH/Conductivity/Temperature Meter (per day).........................................................................................$50.00 PIDMeter (per day)................................................................................................................................. $110.00 SampleKit (per boring)............................................................................................................................. $35.00 SampleKit (per well)................................................................................................................................ $50.00 Submersible Purge Pump (Per day)......................................................................................................... $175.00 Trimble Pro XRS Pathfinder Backpack GPS (per day)...........................................................................$165.00 Water Level Indicator (per day)................................................................................................................ $35.00 XRFMeter (per day)............................................................................................................................... $350.00 SUBCONTRACTS AND THIRD PARTY CONTRACTS With the exception of those subcontracts specifically listed above to be executed through Terracon at cost plus 10%, other normal subcontract functions shall be executed through the City of Lubbock. Upon City's approval, other subcontracts may be executed through Terracon at cost plus 10%. January 2015 Page 7 of 7