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Home My WebLink AboutC2018-203 - 5/4/2018 - NA • • CITY OF CORPUS CHRISTI CONTRACT FOR PROFESSIONAL SERVICES AMENDMENT NO. 3 The City of Corpus Christi, Texas, a Texas home-rule municipal corporation ("City")and HDR Engineering, Inc. ("Consultant"), agree to the following amendments to the Contract for Professional Services for Corpus Christi Aquifer Storage and Recovery Feasibility Study(Project No. E162651: Original Contract July 26, 2016 Ordinance No.030902 $601,980.00 Amendment No. 1 September 8, 2016 Administrative Approval 0.00 Amendment No. 2 May 12, 2017 Administrative Approval $24,820.00 In the Original Contract,Exhibit A,Scope shall be amended as set forth in the attached Amendment No.3,Exhibit A. In the Original Contract,Exhibit A,Fees shall be amended based on the modified scope of services in the attached Amendment No.3,Exhibit A for a fee not to exceed$19,964.00,for a total restated fee not to exceed$646,764.00. All other terms and conditions of the July 26, 2016 Contract for Professional Services between the City and Consultant,and of any amendments to that contract,which are not specifically addressed herein shall remain in full force and effect. CITY OF CORP S C RISTI HDR ENGINEERING,INC. LSI 11) - /,- ie ie H. Gra VE. Date Ily . 'a. r, .E. " Date E tive Dir- •r • '79 'enior ice P,-side 401 West Gate Boulevard,Suite 400 Austin, Texas 78745 `� �� (512)912-5100 Office .eff H. Edmonds, P.E. ate (512) 912-5158 Fax Director of Engineering Services kristi.shaw@hdrinc.com APPROVED AS TO LEGAL FORM 9/0/1-/ 2018.04.25 08:21:21 -05'00' Assistant City Attorney Date ATTEST Accounting Unit 4481-072 Account 550950 Activity El 6265-01-4481-E XP Account Category 50950 P� �l�j1g Fund Name RWSppIyDvChgCIP ge--ke,rW+FLA Secretary Date 2018-203 5/04/18 5 CC AQUIFER STORAGE 8 RECOVERY FEASIBILITY STUOYVIMENDMENT NO.JICON TRACT,DOC REV.1011115 HDR Engineering Inc. INDEXED • March 13,2018 Mr. Daniel Deng,P.E. • Utilities Department City of Corpus Christi P.O. Box 9277 Corpus Christi,Texas 78469-9277 RE: Amendment No. 3 to Professional Services Agreement for Corpus Christi Aquiferuifer Storage and Recovery Feasibility Study(Project No. E16265) Dear Mr. Deng: In August 2016, HDR Engineering, Inc (HDR)entered into an agreement with the City of Corpus Christi to provide Professional Services for the Corpus Christi Aquifer Storage and Recovery (ASR) Feasibility Studyl. The contract included provisions for additional requested services beyond those identified in the original time and materials, not to exceed the City's total appropriation for the project. Details of contract and amendments arc shown in Attachment 1. City Council approved and appropriated$1,857,708 for the Corpus Christi ASR Feasibility Study(E16265), to include: HDR professional services, Felder Water Well LLC well drilling services for base and alternate items,and an unspent allocation of roughly $280,0002 for additional efforts beyond original scope as may arise during the three-year study. In the bidding request for drilling services,City Staff requested allotment of an additional time in the driller's schedule to reduce costs. The City- Driller agreement specified substantial completion within 133 days of notice to proceed, a schedule that HDR discussed with City Staff extended 7 weeks beyond the field support timeframe included in HDR's August 2016 agreement. In October 2016, HDR prepared a draft amendment for City Staff consideration to include this scope change. After discussing with City Staff, it was agreed that HDR's additional services beyond contract would be revisited at the end of the drilling effort based on actual costs incurred. The City Inspector would represent the Approved by City Council on July 26,2016 by Ordinance No.030902,which included but is not limited to acceptance of TWDB grant in amount up to$433,388 and appropriating funding from the Raw Water Supply Development Fund No.4041 to combine with previously assigned Water Supply Operating Fund for a total project budget of 51,857,708. 2 Subject to change,depending on field conditions and confirmation of alternate bid items by City Staff. hdrinc.com 4401 West Gate Blvd..Suite 400,Austin,TX 78745 T 512.912.5100 F 512.912.5158 Texas Registered Engineering Firm F-754 Amemd. No. 3 Exhibit A Page 1 of 4 Mr Daniel Deng,P.E. March 13,2018 Page 2 City during non-critical field activities. The drilling activities were substantially completed on March 8,2018,or 138 days (20 weeks)after notice to proceed. The additional services requested by HDR in response to City directives during the field program included the following: • Two-phased drilling of 6 boreholes(scope included 3 boreholes); • Participation in the September 26,2017 pre-construction meeting; • Field support during installation of permanent monitoring wells(alternate bid items). HDR provided City representation during installation of two of the three monitoring wells; • Preparation of flush-mounted monitoring well design for Site 3,in response to City Staff's interest in low profile design for Westhaven Park; • Airport coordination for site access and badging; • Rental of water quality sonde and two-Level Troll 700 transducers to monitor water levels during pump tests3; and • Cancelled airfare in response to driller-initiated changes in schedule. With the two-phased approach for drilling and program modifications in response to field conditions, HDR was able to help the City save over$200,000 of the original $950,740 budgeted for Felder Water Well LLC drilling services. Attached for your consideration is Amendment No. 3, for costs incurred on activities beyond our original scope of work as described above.Cost details are included in Attachment 2. Please prepare an amendment to the subject contract for$19,964. Should you need additional information,please contact me at 512-912-5118 at your convenience. Sincerely, HDR Engineering, Inc. Kristine S. Shaw,P.E. Project Manager 3 District notified HDR in September that it did not have transducers for use in monitoring water levels during pump testing. This equipment rental was not previously accounted for in City-HDR agreement. Amemd. No. 3 Exhibit A Page 2 of 4 • Attachment 1 Corpus Christi Aquifer Storage and Recovery Feasibility Project City Project No.E16265 Amd No. Mid Amd Total Basic Services: Contract 1 No.2 No.3 Contract Task 1-Formulate Program $44,286 S0 $0 SO $44,286 Task 2-Exploratory Test Drilling Program $276,055 0 $24,820$19,964 $320,839 Task 3-Geochemdcal Analysis $65,908 0 0 0 $65,906 Task 4-Field Scale Groundwater Model $116,753 0 0 0 5116,763 Task 5-ASR Operating Policies $29,553 0 0 0 $29.653 Task 6-TWDB Coord, Oeliv&Meeting $69,427 0 0 0 $69,427 Subtotal Basic Services $601,980 $0 $24,820$19,964 $646.764 Additional Services: Subtotal Additional Services $0 $0 SO SO $0 Summary of Fees Basic Services Fees $801,980 $0 $24,820$19,964 $648,764 Additional Services Fees $0 SO $0 $0 SO Total of Fees $601,980 SO $24,820$19,964 $646,764 Note Amendment No I added TWDB requested contact language at no fee change.Amendment 2 included work to verify revise locations and preparation of City-front material for bidding documents Amemd. No. 3 Exhibit A Page 3 of 4 Attachment 2 Amendment e3 Current City a HOP Agreement: Task 2-Develop and Supervise Exploratory Test Drilling Program technical support for up to three exploratory boreholes to a depth of about 1,200 feet to assess geology,hydrogeology,water quality,and geochemistry. City-HDR agreement signed August 2016 assumed 72-day field program,a shorter duration than subsequent City-Driller agreement for 133 days NTP between City and Driller. Field testing completed on Feb 21,or 138 days NTP. Below reflects actual costs incurred,excluding driller down time or times when no work was performed by HDR such as during times of City inspector field oversight or awaiting coring tool. Additional work associated with Exploratory Test Drilling Program is as follows: • • Coordination with airport personnel for site access. Badge training on 7/18/17 and 10/17/17 for HEIR $3,362 • Flush-mounted MW design for Site I Project support and coordination with drillers for 4th Phase I borehole(Site 6),two permanent monitoring wells at Site 1, extended 72 hr pump tests,and Sept 26 pre-con meeting. _ _ $12.688 Nan-labor expenses Laboratory and/or Equipment Rental • Equipment rental for two barometric pressure tranducers and water quality instrument •See note below. • -Water Quality Sonde(three weekly rates for three locations,total) $453 - Level Troll 700 Basic,for test well and monitoring well(two transducers a 2 cables for three intervals) $2,491 Airfare casts from cancelled/lights • Cancelled Airfare(driller-initiated changes in schedule;amount exceeding HDR's airfare budget of$27601 $970 Reschedule of 10/3/17 flight due to change in coring tool arrival;reschedule of 10/6/17 pending Site 1 road access&gate access;change of 12/21 return due to coring tool modifications;reschedule of 2/2/18 flight due to weather. Total $19,960. Note: Direct equipment expenses without mark-up per contract. Amemd. No. 3 Exhibit A Page 4 of 4