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HomeMy WebLinkAboutResolution - 2019-R0443 - Amendment 5 With Halff Associates - 12/03/2019 Resolution No. 2019-R0443 Item No. 7.7 December 3, 2019 RESOLUTION BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK: THAT the Mayor of the City of Lubbock is hereby authorized and directed to execute for and on behalf of the City of Lubbock, Amendment No. 5 to Agreement No. 12113, dated April 9, 2015, for Professional Services related to the Stormwater Master Plan, by and between the City of Lubbock and Halff Associates, Inc., a Texas Corporation, and 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 City Council. Passed by the City Council on December 3, 2019 DANIEL, M. POPE, MAYOR ATTEST: Rebec a Garza, City Secret ry APPROVED AS TO CO -N�1': J c achern, Assistant City Manager APPROVED AS TO FORM: K 11i Leisure, Assistant City Attorney ccdocs/RES.Amendment 5 to Agreement 12113---Stonnwater Master Plan 11.18.19 Resolution No. 2019-RO443 CONTRACT 12113 Amendment 5 To Agreement Between The City of Lubbock, TX And Halff Associates, Inc. THIS IS THE AMENDMENT TO THE AGREEMENT, Contract No. 12113, dated April 9, 2015 by and between the City of Lubbock("City") and Halff Associates, Inc., a Texas Corporation ("Engineer"). The Consultant has entered into the Agreement with the City for performing professional services related to the Stormwater Master Plan. This Amendment No. 5 increases the scope of work of the Original Agreement to include additional services for updates to the Master Drainage Plans for playa basins and design services related to Capital Improvement Project(CIP) studies performed as part of the City of Lubbock Stormwater Master Plan as set forth in Exhibit"D6" ("Task Order#6"), attached hereto and incorporated herein, increases the compensation by an additional six hundred twelve thousand three hundred dollars and NO/100 ($612,300.00), and extends the Agreement an additional three (3) months from the expiration date of the Agreement such that the Agreement and Amendment shall terminate at the close of business on January 1st, 2021, unless a mutual agreement is made by the City and the Engineer to extend the Agreement. The original contract amount of$500,000, and the new contract amount will be$2,562,300. All other portions of the original Agreement and previous Amendments shall remain in place and are not altered by this amendment. IN WITNESS HEREOF, the parties have executed this Amendment as of this 3rd day of December , 2019. CITY OF L OCK: ENGINEER: Daniel M. Pope, ayor Erin Atkinson, Vice President of Halff Associates, Inc. ATTEST: Reba Garza, City S ret e c APPROVED AS TO CONTENT: Michael Keenurn, P.E., CFM, Division Directorohn Turpin, P*,Assistant City Engineer/Capital of Engineering/City Engineer Projects and Design APPROVED AS TO FORM: U& I kelli Leisure, Assistant City Attorney Exhibit"D6" City of Lubbock Stormwater Master Plan Task Order#6 This Task Order is made as of ,2019,under the terms and conditions established in the PROFESSIONAL SERVICES CONTRACT(Task Order Basis)between the City of Lubbock,Texas(CITY)and Halff Associates,Inc. (ENGINEER),dated_April 9.2015 (the Agreement).This Task Order is made for the following purpose,consistent with the Project defined in the Agreement: Task Order 6 will provide professional services related to updating the Master Drainage Plans for playa basins and design services related to Capital Improvement Project(CIP)studies performed as part of the City of Lubbock Stormwater Master Plan.The consultant will coordinate with the City to determine the playa basins that will receive updated Master Drainage Plans; provide professional services related to analyzing and designing playa restoration options to increase the storage volume of Lake 45(Higinbotham Park);and provide professional services related to analyzing and designing drainage improvements for the North Quaker Avenue to Clovis Road Drainage Project. Section A.—Scope of Services ENGINEER shall perform the following MASTER DRAINAGE PLAN UPDATES 1. MASTER DRAINAGE PLAN UPDATES Master Drainage Plan Updates were initiated and conducted as part of Task Orders 3 and 5.Task Order 6 will continue the MDP update process for additional playa basins. The MDP update process used for Task Order 3 will be continued and the updates will focus on developing areas of the City and locations of potential future annexation. 1.1 Prioritize Playa Systems a. The ENGINEER will meet with the CITY's staff in order to rank each playa basin based on current and predicted growth. The prioritization list will be presented to the City to determine which basins will be prioritized for an MDP update. Stormwater Master Plan 1 1.2 Perform ICPR Modeling a. The ENGINEER will conduct hydrologic and hydraulic modeling on the prioritized playa basins using ICPR software, which is capable of I D and 2D modeling analysis. The playa basins will be modeled based on assumed future fully developed conditions based on City planned land use and typical development patterns. The objectives of modeling will be to identify expected stormwater runoff volumes and the impacts of runoff to the major thoroughfare crossings. 1.3 Develop MDP Mapping a. The ENGINEER will compile the datasets used to develop the MDP models into a standardized GIS database for use by the development community and other stakeholders. Additionally,the results of the hydraulic modeling will be used to develop inundation areas and expected flowpaths of the stormwater runoff. 1.4 Document MDP Final Report a. The ENGINEER will prepare MDP Final Reports for each playa basin documenting the assumptions, model parameters,and results.. HIGINBOTHAM FEASIBILITY STUDY AND DESIGN 1. HIGINBOTHAM GENERAL & INITIAI. INVESTIGATION 1.1 Design Meetings a. The ENGINEER will meet with the CITY's staff during the development of the schematic, preliminary and final project phases of the PROJECT. Meetings will be scheduled at the completion of each phase and following the review of each submittal to address comments and responses. 1.2 Project Management, Administration and Coordination a. The ENGINEER will establish and maintain PROJECT schedules and budgets,develop monthly progress reports, prepare invoices, and meet with other entities on an as needed basis for the duration of the PROJECT's design. b. Supervision of Subconsultants—The ENGINEER will establish a work program and schedule for each subconsultant at the beginning of each phase/section of the PROJECT. The ENGINEER will be responsible for the coordination, supervision, review and incorporation of work performed by subconsultants. 1.3 Data Collection a. The ENGINEER will collect, compile and evaluate existing data collected from the CITY,or other entities that supply needed existing information for the design of the PROJECT. b. A location map/schematic will be provided to the affected utility companies. These schematics will be used by the utility companies to show approximate locations of their facilities which are Stormwater Master Plan 2 or may be affected by the PROJECT. c. The ENGINEER will make every effort to obtain As-Built Drawings,Record Drawings and/or future plans for the following facilities in the PROJECT area including: i. Park Infrastructure and Irrigation Lines ii. Roadway iii. Water Lines iv. Sanitary Sewer Lines V. Storm Drain Lines vi. Telecommunication Underground and/or Overhead Lines vii. Electric Underground and/or Overhead Lines viii. Gas Lines ix. Other Utilities Known to Serve the PROJECT Area d. Plot the preliminary information obtained above for later use in the field to help surveyors tie existing utility locations. The locations of utilities tied from field surveys will be shown on the plans. e. The ENGINEER will identify potential utility conflicts,based on known data, and provide this information to utility companies. 2. HIGINBOTHAM SCHEMATIC DESIGN & FEASIBILITY ANALYSIS PHASE (30%) a. The ENGINEER will conduct a schematic design conference with the CITY. Design schematics will be based on an alternative developed as part of the sensitivity analysis provided to the CITY in 2019.The playa reclamation limits will generally be limited to areas not affecting the existing walking trails,park facilities,lights or other infrastructure unless specified by CITY.The playa reclamation is estimated to target a maximum depth of 8 feet while trying to incorporate a 10:1 slope with a maximum steepness of 7:1. Depending on the constraints identified during this feasibility analysis,ENGINEER will prepare up to three schematic design alternatives for consideration by CITY. b. The ENGINEER will prepare a schematic containing aerial photo, 1-foot contours,existing right-of-way lines,typical sections,top/toe of slope,proposed grades,limits of excavation, drainage structures including pipes, limits of permanent/temporary erosion control,if any,and any other information necessary for channel construction. c. The ENGINEER will prepare a Hydrology and Hydraulic Analysis technical memorandum describing the project assumptions, data sources,project methodology and analysis of the project impacts. The focus of the memorandum will be the impact to playa storage and downstream discharges of the schematic layout of the recommended alternative. 3. HIGINBOTHAM PRELIMINARY DESIGN DEVELOPMENT PHASE (60%) 3.1 Volume Reclamation Design a. The ENGINEER will develop a preliminary design of playa improvements based on the schematic design alternative selected by CITY. The preliminary design will include the proposed horizontal and vertical alignments. These plan sheets will contain topographic Stormwater Master Plan 3 information, existing right-of-way lines,channel centerline, top/toe of slope, proposed grades, limits of excavation, drainage structures including pipes, limits of permanent/temporary erosion control, if any, and any other information necessary for channel construction. Upon completion, the preliminary design will be submitted to the CITY for review. The preliminary design must be approved by the CITY prior to the start of the final design phase. b. The ENGINEER will prepare cross-sections which will form the basis for the determination of earthwork quantities. Cut and fill quantities will be computed and tabulated, referencing cross-sections. Cross-sections will be included in the plans. 3.2 Other Playa Design Elements a. A Project Title Sheet will be prepared as required and included in the Plans. b. Miscellaneous erosion details will be developed as necessary to describe various types of construction such as rock riprap,turf reinforcement mat,gabion etc. when no such CITY standard details are available. 3.3 Miscellaneous Plans and Details a. Construction plans will also address demolition,erosion control, traffic control(including detours, road closures, signing, barricading, etc.) if required, and all other improvements. 3.4 Quantities and Cost Estimate a. PROJECT quantities will be calculated and tabulated for inclusion in the bid proposal and cost estimates. b. The ENGINEER's opinion of probable constriction costs will be prepared for the entire PROJECT using current unit cost data. 3.5 Submit Preliminary Plans for Review a. Submit two (2) sets of half size(11x17)preliminary plans and construction estimate for CITY review along with PDFs of all plans and documents. 4. HIGINBOTHAM FINAL DESIGN PHASE (90% and 100%) 4.1 Prepare Final Design Plans a. Incorporate CITY review comments and directives from the preliminary design plans, in the preparation of final construction plans. 4.2 Calculate Final Quantities and Cost Estimates a. Revise the preliminary quantities and opinion of probable costs per changes in the final design and CITY review comments. 4.3 Prepare Contract Documents and Specifications a. Compile special provisions necessary for the PROJECT. b. Compile specifications necessary for the PROJECT. Any special specifications will also be Stormwater Master Plan 4 prepared. The CITY will provide a copy of their contract documents in digital format. c. Compile and develop a list of general notes necessary for the PROJECT. d. Prepare complete contract documents and specifications for bidding purposes. 4.4 Submit final plans, specifications, and cost estimates for CITY review a. Submit two(2)sets of half size(11x17)final plans,construction estimate,and bid documents for CITY review along with PDFs of all plans and documents. b. Submit detailed drawings and plans/specifications to appropriate regulatory agency(ies)and utility companies and obtain clearance. 5. WGINBOTIHAM KIDDING AND CONSTRUCTION PHASE a. Assist the CITY in the advertisement of the PROJECT for bid.The CITY shall bear the cost of advertisement.The ENGINEER shall provide all necessary printing of construction plans, specifications and contract documents for use in obtaining bids,awarding contracts,and constructing the PROJECT.The ENGINEER shall be responsible for dispersing all plans and specifications from its office to prospective bidders. b. The ENGINEER shall generate addenda as needed. c. The ENGINEER shall attend a pre-bid meeting. d. Assist the CITY in the opening and tabulation of the construction bids for the PROJECT and provide a written Contractor recommendation to the CITY. e. Assist in the preparation of formal Contract Documents and in coordinating their execution by the respective parties. f. The.ENGINEER shall attend a pre-construction meeting. g. Represent the CITY in the non-resident administration of the PROJECT.In this capacity,the ENGINEER shall have the authority to exercise whatever rights the CITY may have to disapprove work and materials that fail to conform to the Contract Documents when such failures are brought to the ENGINEER's attention. (This function of ENGINEER shall not be construed as supervision of the PROJECT and does not include on-site activities other than occasional site visits to observe overall PROJECT conditions or when specifically requested by CITY to visit on site for a particular matter.It particularly does not involve exhaustive or continuous on-site inspection to check the quality or quantity of the work or material;nor does it place any responsibility on the ENGINEER for the techniques and sequences of construction or the safety precaution incident thereto,and ENGINEER will not be responsible or liable in any degree for the Contractor's failure to perform the construction work in accordance with the Contract Documents.) h. The ENGINEER will consult and advise the CITY;issue such instructions to the Contractor as in the judgment of the ENGINEER are necessary;and prepare routine change orders as required. i. Review samples,catalog data,schedules,shop drawings,laboratory,shop and mill tests of material and equipment and other data which the Contractor is required to submit,only for conformance with the design concept of the PROJECT and compliance with the information given by the Contract Documents;and assemble written guarantees which are required by the Contract Documents. Stormwater Master Plan 5 j. Prepare or review monthly and final estimates for payments to Contractor,and furnish to the CITY any necessary certifications provided by the Contractor,as to payments to subcontractors and suppliers. k. Conduct, in company with the Contractor,a final inspection of the PROJECT for conformance with the design concept of the PROJECT and compliance with the Contract Documents;and approve in writing final payment to the Contractors. 1. Revise contract drawings, with the assistance of the CITY's Resident PROJECT Representative to reflect available information as to how the work was constructed.The CITY's Resident PROJECT Representative will provide the ENGINEER a red-lined set of drawings depicting changes during construction.The ENGINEER shall revise original design drawings,noting changes during construction, and submit three(3) sets of Record Drawings and one CD-ROM (pdf and dwg format)to the CITY. 6. HIGINBOTHAM SPECIAL SERVICES The scope of work for SPECIAL Engineering Services involves Surveys (Design) and Geotechnical Engineering. The scope of work for the Special Engineering Services is more generally described as follows: 6.1 SURVEYING The ENGINEER shall provide surveying services,which,in general,may be defined as normal services applicable to a project of this type.The following particulars will also apply. a. Vertical benchmarks shall be established such that all points of construction shall be within 500 feet of a benchmark. Benchmarks should not be subject to loss during construction. Fire hydrants and similar appurtenances are not to be used for benchmarks.The City will furnish one or more benchmarks for this Project. The surveyor shall establish temporary benchmarks throughout the length of the project. b. Topographic features will be surveyed along with any and all other features needed for design, review,permitting,construction,and inspection of the project.This will include tree surveys, light poles,boring locations,and other above ground appurtenances.Coverage will extend beyond the proposed excavation limits to the approximate extents of existing walking trails to integrate the design with the adjacent properties. c. Existing property corners,iron pins,etc. shall be tied into established existing rights-of-way. Prior to surveying on private property,the surveyor shall secure written permission from the property owners and/or tenant and shall provide the City a copy of said written permission. Should only oral permission be granted,the surveyor shall document the permission granted by letter to the property owner/tenant,with a copy to the City. If permission cannot be obtained,the City will assist,or other arrangements will be worked out. d. Bathymetric survey of the lake to determine cut volumes for ground elevations below the normal pool elevation. 6.2 GEOTECHNICAL ENGINEERING The ENGINEER shall engage the services of a sub-consultant to perform subsurface analysis. Specific tasks include the following: a. Engineering Services—Specific items include global slope stability alternative analysis, proximity to bedrock(if applicable),and geotechnical conditions. b. Additional geotechnical needs identified in the schematic phase of the design development will be included in the proposal by the geotechnical engineer. Stormwater Master Plan 6 NORTH QUAKER AND CLOVIS DRAINAGE PROJECT 1. CLOVIS DATA ACQUISITION a. The CITY will provide the ENGINEER with copies of any Preliminary Plats and Final Plats on file within the study area. b. The CITY will provide the ENGINEER with any approved Drainage Analysis Reports and hydrologic and/or hydraulic analysis computer models within the study area. c. The ENGINEER will develop topographic data for analysis and modeling purposes from the CITY's 2017 LiDAR data. d. The ENGINEER will collect field survey and topographic data of existing culverts, low water crossings,and other identified existing drainage improvements. e. The CITY will provide the ENGINEER with record drawings and other existing information relating to utility locations and depths within the study area. 2. CLOVIS EXISTING CONDITIONS ANALYSIS The Existing Conditions Analysis will establish baseline hydrologic and hydraulic conditions for use in the evaluation of the effectiveness of proposed drainage improvement alternatives in the PROJECT area. Specific tasks include the following: a. The ENGINEER shall develop existing conditions land use and impervious area data sets. b. The ENGINEER will utilize playa stage-storage data from the MDP study of the area performed under Task Order#5. c. Sub-basin and local drainage area delineations will be taken from the MDP study and modified as necessary to represent existing playa sub-basin boundaries and discharge points to locations of interest. d. The ENGINEER will determine time of concentration to sub-area boundaries. e. The ENGINEER will develop existing conditions SCS curve number for traditional hydrologic analysis of sub-areas. f. The ENGINEER will perform traditional hydrologic analysis for sub-areas using the SCS method for the 100-year,24-hour storm event using ICPR4. g. The ENGINEER will calculate existing conditions flow rates and depths at stormwater crossings at Frankford Avenue and Quaker Avenue,through existing drainage easements downstream of Quaker Avenue,and discharges and depths through culverts under US Highway 84 into Yellow House Draw. h. The ENGINEER will provide to the CITY the following for review during the Existing Conditions Analysis: a. Existing conditions hydrologic data including land use maps,drainage basin delineations, and hydrologic calculations, b. Hydraulic modeling results. 3. CLOVIS FULLY DEVELOPED CONDITIONS ANALYSIS The Fully Developed Conditions Analysis will document expected stormwater flow rates and depths within the project area under a no action scenario where no drainage improvements are constructed and no mitigation by private parties is implemented. Stormwater Master Plan 7 a. The ENGINEER will utilize future fully developed (FFD) hydrologic data from the MDP updates performed under Task Order#5. b. The ENGINEER will utilize hydraulic calculations of flow rates and depths at Frankford Avenue and Quaker Avenue taken from the MDP updates performed under Task Order#5. c. The ENGINEER will utilize previously prepared drainage analyses for the area upstream of Quaker Avenue to identify likely discharge points to Quaker Avenue under FFD conditions and modify as necessary. d. The ENGINEER will determine flow rates and depths through existing drainage easements and drainage improvements downstream of Quaker Avenue to Yellow House Draw. e. The ENGINEER will provide recommendations for maximum allowable flow rates across Frankford and Quaker Avenues to meet the CITY's regulatory criteria. 4. CLOVIS DRAINAGE IMPROVEMENT ALTERNATIVES ANALYSIS a. The ENGINEER will evaluate the following drainage improvement alternatives from Quaker Avenue downstream to Yellow House Draw: L Storm sewer system from US Highway 84-Loop 289 intersection to Yellow House Draw. ii. Storm sewer system from Quaker Avenue to Yellow House Draw. iii. Open channel conveyance/linear detention from Quaker Avenue to US Highway 84-Loop 289 intersection. iv. Alternatives to increase stormwater discharges across Quaker Avenue via culverts or storm sewer systems. V. Combinations of the alternatives described above. vi. The ENGINEER will conceptually evaluate and present reasonable alternatives to the CITY for decision.Three (3) alternatives will be evaluated and modeled. b. The ENGINEER will evaluate the following associated with three drainage improvement alternatives: i. Alignment options and available right-of-way, ii. Utility conflicts for proposed alternatives, Storm sewer sizing and channel cross section alternatives, iv. Impact to stormwater flow rates and depths and inundation limits for the 100-Year, 24- Hour storm event. c. The ENGINEER will prepare an Engineer's Opinion of Probable Construction Cost (OPCC) three(3) selected drainage improvement alternatives. 5. CLOVIS DELIVERABLES a. The ENGINEER will deliver electronic files of a hydrologic and hydraulic models developed for pilot study area. b. The ENGINEER will deliver all GIS data used for model development in geodatabase or shapefile format. c. The ENGINEER will prepare a written report documenting the existing hydrologic and hydraulic conditions, the FFD hydrologic and hydraulic conditions under a no action condition, and an assessment of each of the evaluated alternatives. d. Engineer's OPCC for selected alternatives. e. Preliminary alignment and profiles of channel and/or storm sewer flowlines. Stormwater Master Plan S Section B.—Additional Engineering Services ADDITIONAL Engineering Services, not included in the scope of work,include those services that may result from significant changes in the general scope,extent or character of the PROJECT or its design including,but not limited to,changes in size,complexity,CITY's schedule,character of construction or method of financing;and revising previously accepted studies,reports,design documents or Contract Documents when such revisions are required by changes in laws,rules, regulations,ordinances,codes or orders enacted subsequent to the preparation of such studies, reports or documents,or are due to any other causes beyond ENGINEER's control. a. The following services are not included in the scope of work and are considered to be special and/or reimbursable cost items. Halff Associates can provide fees for these services, if requested: i. FEMA Coordination including CLOMRS and LOMRS ii. Structural Design of non-standard elements,retaining walls,footings,tie-backs,etc... iii. Noise and Air Quality Analysis iv. Species and Specific Biological Survey V. Landscaping and Irrigation Design vi. USACE Permitting and coordination vii. H&H modeling of final design grades and structures viii. Public land use changes and documentation ix. Public meetings b. ADDITIONAL Engineering Services not included in the scope of work,also include assistance to the CITY in connection with bid protests,rebidding or renegotiating contracts for construction, materials,equipment or service,or preparing to serve or serving as a consultant or witness for CITY in any litigation,arbitration or other legal proceeding involving the PROJECT. c. ADDITIONAL Engineering Services not included in the Scope of Work,also include setting of Easement/Right-Of-Way acquisition parcels. d. ADDITIONAL Engineering services in connection with the PROJECT,including services which are to be furnished by the CITY and services not otherwise provided for in this Agreement will be at the following rates: e. Staff Member and Resident Project Representative-Salary Cost Times Multiplier of 2.3. f. Salary Cost is defined as the cost of payroll of ENGINEER'S,draftsmen,stenographers,survey men,clerks,laborers,etc.,for the time directly chargeable to the PROJECT,plus social security contributions,unemployment compensation insurance,retirement benefits,medical and insurance benefits, longevity payments,sick leave, vacation and holiday pay applicable thereto. Section C. - Schedule Perform the Services and deliver the identified tasks according to the following schedule: The schedule of services performed will be completed within 13 months of task order notice to proceed. Stormwater Master Plan 9 Section D.-Compensation In return for the performance of the foregoing obligations,City agrees to pay to ENGINEER the amount of$ 612,300 ,payable in accordance with the Professional Services Contract(Task Order Basis)and this Task Order# 6 . Task/Description Estimated Budget MASTER DRAINAGE PLAN 1. Master Drainage Plan Updates 1.1. Prioritize Playa Basins 1.2. Perform ICPR Modeling $250,00 1.3. Develop MDP Mapping 1.4. Document MDP Final Report HIGINBOTHAM FEASIBILITY STUDY AND DESIGN 1. Higinbotham General &Initial Investigation 1.1. Design Meetings $14,300 1.2. Project Management,Admin &Coord 1.3. Data Collection 2. Higinbotham Schematic Design &Feasibility Analysis Phase(30%) $14,800 3. Higinbotham Preliminary Design Development Phase(60%) $27,600 3.1. Volume Reclamation Design 3.2. Other Playa Design Elements 3.3. Misc Plans and Details 3.4. Quantities and Cost Estimate 3.5. Submit Prelim Plans for Review 4. Higinbotham Final Design 4.1. Prepare Final Design Plans 4.2. Calculate Final Quantities and Cost Est 4.3. Prepare Contract Docs and Specs 4.4. Submit Final Plans,Specs,and Cost Est $15,100 5. Higinbotham Bidding and Construction Phase $10,100 6. Higinbotham Special Services 6.1. Surveying 6.2. Geotechnical Engineering $33,000 Stormwater Master Plan 10 NORTH QUAKER AND CLOVIS DRAINAGE PROJECT 1. Clovis Data Acquisition $20,900 2. Clovis Existing Conditions Analysis $49,700 3. Clovis Full Develop Conditions Analysis $22,900 4. Clovis Drainage Improvement Alternatives $99,100 Analysis 5. Clovis Deliverables $54,800 Total Estimated Fee $612,300 Stormwater Master Plan 1 I Section E.-City's Responsibilities In addition to the list of activities contained in Exhibit"C"of the Professional Services Contract(Task Order Basis),the City shall perform and/or provide the following: No additional activities to Exhibit C are required for Task Order#6. This task order does not waive the parties' responsibilities and obligations provided under the PROFESSIONAL SERVICES CONTRACT(Task Order Basis)between City andENGINEER. IN WITNESS WHEREOF,City and ENGINEER have executed this Task Order. City of Lubbock,Texas Halff Associates,Inc. (City) (ENGINEER) Signature Signature Name John Turpin, PE Name Erin Atkinson, PE,CFM,GISP Title Engineering—Capital Projects and Design Title Vice President Date Date ll ls— 17 Stormwater Master Plan 12