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HomeMy WebLinkAboutResolution - 2010-R0037 - Amendment 1 Contract 8773 Terracon Consultants, Inc. Groundwater Monitoring - 01/28/2010Resolution No. 2010-R0037 January 28, 2010 Item No. 5.15 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 28th day of January_ , 2010. ATTEST: Rebecca arza, City Secretary APPROVED AS TO CONTENT: &a&j� Marsha Reed, P.E., Chief Operatink Officer Aubrey A. Sr, Director of ater Utilities APPROVED AS TlGi)RM: r, ���'30W Res -Amend. Prof Srvs Agrmnt-Terracon Consultants Inc 01 11 10 _� TOM MARTIN, MAYOR Resolution No. 2010-R0037 STATE OF TEXAS COUNTY OF LUBBOCK FIRST AMENDMENT TO PROFESSIONAL SERVICES AGREEMENT This First Amendment to Professional Service Agreement is entered into this 28th day of January , 2010 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-RO453 (Contract #8773) (hereinafter called "the Agreement"); and WHEREAS, the City and the Engineer hereby desire to amend said agreement. NOW THEREFORE, the City and the Engineer hereby agree to amend the Agreement as follows: 1) "Attachment A" of the Agreement shall be supplemented with "Attachment A-1" 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. IN WITNESS WHEREOF, the parties have executed this Agreement by their duly authorized representatives as of the date first written above. CITY OF LUBBOCK TOM MARTIN, MAYOR ATTEST: C9, Rebec Garza, City Secretary APPROVED AS TO CONTENT: Aub ey A. Spee,Director o Water Utilities APPROVED AS TO FORM: my sist ity Attorney TEPD n If -%NT Nan Title: r, f ! r�'Cy�" Resolution No. 2010-R0037 ATTACHMENT (A -1) 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 (BLAS) and Lubbock Land Application Site (LLAS). This exhibit outlines specific tasks, budgets, and not to exceed amounts for Terracon to complete the anticipated 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 included in this exhibit. 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 2010. The 2010 Annual Report for the LLAS will include development of an updated groundwater model for the LLAS. In addition, specific tasks are included to allow Terracon to collect and evaluate publicly available information pertaining to water quality, groundwater elevations, and new wells constructed in the vicinity of the LLAS and HLAS. Additional tasks such as the design and completion of subsurface investigatory studies, pilot testing of in situ groundwater treatment to remediate nitrate in groundwater, off-site groundwater monitoring, installation of additional monitoring wells and/or vacuum lysimeters, and aquifer testing, may be negotiated as Additional Services and may be added to this Agreement by amendment hereof. Task 1- 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 regulators. Task 1.1 Strategic Planning Meetinzs Terracon will meet with City of Lubbock personnel to discuss strategic planning for the LLAS and HLAS including regulatory compliance and closure issues. The strategic planning session(s) will address both short-term and long-term planning. 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 as well as to discuss implications regarding the possible construction of Reservoir # 7 to the south of the LLAS. Three meetings are proposed during the course of the year. Task L2 Meetim with Regulators Terracon will assist the City of Lubbock with their discussions with the TCEQ. The LLAS is currently operated, monitored, and remediated pursuant to a 1989 Agreed Order with the Texas Water Commission (TWC, predecessor to TCEQ) but, as discussed below, the current intentions are to transition operations, monitoring, and remediation to the permit. Terracon understands that the City of Lubbock submitted a TPDES Discharge Permit amendment/renewal in August 2008 for the wastewater treatment facilities and has received draft permits from the TCEQ for the land applications sites and for the Jim Bertrand Lake System in 2009. Terracon will assist the City of Lubbock as necessary and as requested to evaluate technical issues pertaining to the permit. This proposal includes time for senior project officers to meet with the City of Lubbock and their attorneys by phone and to accompany the City of Lubbock at a meeting with the TCEQ in Austin. Page 1 of 6 Task 2 - HLAs Terracon shall complete two main project tasks related to compliance with the City of Lubbock's TPDES permit No. 10353-002 related to the BLAS. The two project tasks and associated work scope are summarized below. Task Z 1 HLAS Data Management 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) in this proposal. It is anticipated that 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 nitrate data from 36 onsite wells; • Annual static water level data from 36 onsite wells; • Annual groundwater quality data from 36 onsite wells; and • Annual groundwater quality field sampling data (i.e., A conductivity, oxidation/reduction potential, dissolved oxygen, and temperature) from 36 onsite wells. 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 is compiled and reviewed, Terracon will evaluate the data and communicate any findings with the City of Lubbock staff and attorneys. Task 22 HLASAnnual Report This task involves preparation of the BLAS annual report. The BLAS 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 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. The three project tasks and associated work scope are summarized below. Page 2 of 6 Task 3 LLAS Data Management 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 in this proposal. It is anticipated that the following data will be collected, compiled, and included in the databases during the fiscal year: • Monthly groundwater production data for approximately 43 recovery wells; • 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 lake nitrate data. 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 is compiled and reviewed, Terracon will evaluate the data and communicate any findings with the City of Lubbock staff and attorneys. Task 3.2 Groundwater Model Update for 2010 LLASAnnual Report This task will involve revision of the existing Modflow computer model prepared for the LLAS in order to prepare the required update of the model for the LLAS annual report. As directed by the TCEQ, the May 2010 LLAS annual report will include a discussion of the revisions and update to the existing groundwater Modflow model to include a re -calibration of the model for 2010 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 to help extract useful data from the previous model, create a new model that interfaces with an existing calibrated regional model of the Southern High Plains Ogallala aquifer, and calibrate the new local model based on current and historical LLAS and local data. In addition to incorporating updated LLAS nitrate concentrations and groundwater level data, the model will be revised to reflect boundary conditions consistent with the Groundwater Availability Model (GAM) and to reflect the stratigraphic data developed by Terracon Consultants, Inc. during preparation of the 2009 LLAS Annual Report. For the purposes of this proposal, it is assumed that the previous aquifer properties used in the existing model will form the basis of the initial modeling effort for the 2009 annual report and that the report will include recommendations for improving/revising aquifer properties in future annual reports in order to improve the model calibration. As such, the groundwater modeling task to support the preparation and submission of the 2010 LLAS Annual Report will focus on those modeling tasks necessary to re -calibrate and validate the model based on comparison of modeled data to actual data from the previous year. Once the model has been validated to match approximate groundwater levels and nitrate concentrations, the current nitrate concentration distribution 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 2010 LLAS Annual Report as described below. Page 3 of 6 Task 3.3 LLASAnnual 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. As directed by the TCEQ, the May 2010 LLAS annual report will also include a discussion of the revisions and update to the existing groundwater Modflow model to include a re -calibration of the model for 2010 to simulate flow conditions and water quality at the LLAS over the next five year period based on the updated nitrate distribution in groundwater and expected groundwater withdrawal rates, wastewater application rates, and typical rainfall. 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. Task 4 - Project Management / Communications During the course of the project, there will be times when Terracon will need to provide overall project management duties, communicate 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. Initial meetings with City of Lubbock staff and the TCEQ in Austin are addressed in Tasks 1.2 and 1.3. Additionally in Task 4, Terracon anticipates an additional meeting with City of Lubbock staff during the year. Task 5 — Data Review for Updated Groundwater Sampling Plan The objective of this task will be to utilize and review publicly available information to fill data gaps that may exist since completion of area wide investigations completed by ARCADIS and the Texas Water Commission in the We 1980s. This task will initially involve a review of publicly available water well information from the Texas Water Development Board (TWDB), the High Plains Underground Water Conservation District, and the Texas Commission on Environmental Quality (TCEQ) to identify new or additional wells and publicly available groundwater quality data in the vicinity of the LLAS since the time of preparation of the regional study completed as part of the original remediation plan submitted in 1989. Since that time, it is anticipated that additional domestic and irrigation wells have been installed and perhaps groundwater quality information will be available in public databases. Terracon will subcontract with an environmental data management firm to complete a water well search of publicly available data in the vicinity of LLAS and to obtain current land/well ownership. Based on preliminary discussions with the environmental data management firm, the estimated total number of wells in the public databases is expected to range from 2,000 to 3,000. The updated water well database will be compared to the previous database including those wells sampled as part of the City of Lubbock's bottled water sampling program in order to make recommendations for possible revisions to the groundwater monitoring program. It is assumed that the City of Lubbock can provide the names and addresses of the wells sampled as part of the bottled water sampling program. In addition, the updated water well and groundwater level database generated during this task will be incorporated into the updated groundwater flow and transport model. The available public data concerning water quality data will be incorporated into a GIS platform to prepare contour maps of nitrate concentrations in groundwater in areas beyond the LLAS in a similar manner as to what Terracon completed for the 2009 HLAS annual report. Page 4 of 6 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 Task 2 — HLAS (annual budget) Task 2.1— BLAS Data Management Task 2.2 — HLAS Annual Report Task 3 — LLAS (annual budget) Task 3.1— LLAS Data Management Task 3.2 — Groundwater Model Update for Annual Report Task 3.3 — LLAS Annual Report Task 4 — Project Management (annual budget) Task 5 - Data Review for Updated Groundwater Sampling Plan Total Project Fee (second 12 month period of contract) Page 5 of 6 $12,800 $5,600 $20,200 $8,600 $57,000 $27,340 $17,440 $28,500 $177,480 Irerracon ENVIRONMENTAL CONSULTING SERVICES FEESCHEDULE HOURLY FEES FOR PERSONNEL Environmental Professional includes Environmental Engineer, Environmental Scientist, Geologist and Hydrogeologist ExpertWitness.................................................................................................................................. $175.00 Senior Principal / Program Manager............................................................................ ....................... $160.00 Principal............................................................................................................................................ $135.00 GroupManager.................................................................................................................................. $125.00 Senior Environmental Engineer.......................................................................................................... $125.00 SeniorProject Manager...................................................................................................................... $110.00 ProjectManager................................................................................................................................. $100.00 Environmental Professional V............................................................................................................ $100.00 Environmental Professional IV............................................................................................................. $95.00 Environmental Professional III ............................................................................................................. $85.00 Environmental Professional II.............................................................................................................. $75.00 EnvironmentalProfessional I............................................................................................................... $65.00 Environmental Technician II ................................................................................................................ $65.00 EnvironmentalTechnician I................................................................................................................. $60.00 AdministrativeAssistant...................................................................................................................... $55.00 Draftsperson/CAD Operator................................................................................................................. $55.00 WordProcessor................................................................................................................................... $50.00 Clerical................................................................................................................................................ $45.00 TRAVEL EXPENSES Reimbursable Expenses are charged at cost plus 10%. Vehicle Charge (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 Disposable Bailer (each)...................................................................................................................... $20.00 GEM 2000 Gas Analyzer & Extraction Monitor (per day).................................................................. $200.00 HandAuger (per day).......................................................................................................................... $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 pEl/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 Normal subcontract functions shall be executed through the City of Lubbock (e.g., analytical testing laboratories, and drillers). Upon City's approval, minor subcontracts may be executed through Terracon at cost plus 10%. Page 6 of 6