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WA9302-CN 951114 AGENDA REQUEST FORM CITY COUNCIL MEETING: November 14, 1995 ITEM # 11/G ITEM CAPTION: Discussion and consideration of approving a geotechnical contract with Gee Consulting in the amount of $26,447.38 for the geotechnical and inspecting services associated with the 2nd Ground Storage Tank (WA 93-02) currently being constructed near the intersection of Village Parkway and MacArthur Blvd. and authorizing the Mayor to sign. APPROVED BY TITLE: Assistant City Manager/City Engineer INITIALS STAFF CO~ENTS: See attached memo. STAFF RECOMMENDATION Approval E Denial EXPLANATION: St~f will be available to answer questions at the Council meeting. BUDGET AMT. $ AMT. EST. $ +/- BUD: $ FINANCIAL COMMENTS: Funds have been allocated for this project in the 1992 Water/Sewer CIP Account. FINANCIAL REVIEW~ CITY MANAGER REVIEW: Agenda Request Form - Revised 1/94 Documem Nam g 04 e ell . MEMORANDUM To: Mayor and City Council From: Kenneth M. Griffin, P.E., Asst. City Manager/City Engineer Ve~ RE: Discussion and consideration of approving a geotechnical contract with Gee Consulting in the amount of $26,447.38 for the geotechnical and inspecting services associated with the 2nd Ground Storage Tank (WA 93-02) currently being constructed near the intersection of Village Parkway and MacArthur Blvd. and authorizing the Mayor to sign. Date: November 6, 1995 Prior to the staff of construction on the 2nd Ground Storage Tank, the City of Coppell negotiated with a geotechnical firm to provide necessary services associated with the construction of the 2nd Ground Storage Tank. Those negotiations included meeting with our consultant, Shimek, Jacobs and Finklea, to get an idea of the typical cost associated with a project of this type. We also met with Richard Gee, of Gee Consultants, Inc. to get an idea of their experience on this type of project and what the types of testing, quantities of testing and the overall cost to complete this project would be. Based on those meetings, a scope of services was outlined using several assumptions, one of which was the number of piers that could be poured during any given day. This project has approximately 340 piers to support the structure. Based on past experience and conversations with the low bidder on the project, NATGUN, it was anticipated that approximately eleven piers per day could be constructed. It is important to note that we need an inspector on site continuously during the pours to insure that materials and workmanship meet minimum standards. The inspector also performs various types of testing to insure that minimum standard are met. When all the above was considered, the City entered into a contract with Gee Consulting to provide testing and inspection service in the amount of $14,822.50. Due to some starrap problems, the contractor fell short of the estimated 11 piers per day. Therefore, the cost for providing the geotechnical services for the approximately 300 piers already constructed has exceeded the amount of the original contract. Because we have already met the total dollar amount in the original contract and we have yet to finish the piers, the consultant and the~'geotechnical firm have approached the City with a revised contract. I am at a loss to explain why a closer estimate as to what it would take to provide geotechnical services for this project was not provided. However, the bottom line is that we do need to provide the ongoing geotechnical services and it would be short sighted on the City's part to cut comers on the geotechnical services for a $2,809,305.00 project. Because of the need to provide the ongoing geotechnical services, staff recommends approval of the contract with GEE Consultants in the amount of $26,447.38 and authorizing the Mayor to sign. Staff will be available to answer questions at the Council meeting. -. , I I G EOTECHNICAL E GEE Consultants, inc. E NVIRONMENTAL 2540 Glenda Lane · Suite 108 · Dallas, Texas 75229 · (214) 620-9791 · Fax (214) 620-9794 E X H I B I T "A" November 1, 1995 Mr. Ken Griffin, P .E. City Engineer City of Coppell P.O. Box 478 Coppell, Texas 75019 RE: Proposal No. 051004 Coppell Ground Storage Tank No. 2 Coppell, Texas Dear Mr. Griffin: In accordance with the request of Mr Gary Hendricks of Shimek, Jacobs & Finklea of October 20, 1995, we are pleased to submit the following revised proposal for materials testing and inspection services for the above referenced project. Revisions to our previous estimate were necessary due to the slower than anticipated pier construction, testing of the building pad, testing of proposed concrete mixes prior to use, and revised shotcrete testing requirements. Types of services are per plans, specifications and common frequencies of testing used in the Dallas/Fort Worth Metroplex for this type of construction. A construction schedule as well as material quantities for project completion were relayed verbally by Mr. Robert Barbarisi, Jr. of Natgun in our telephone conversation of October 13, 1995. Fees below include testing and inspection performed to date. We estimate the fees will be as follows: I. UTILITIES Laboratory Testing ASTM D 698 Moisture Density Relationships 2 tests @ $125.00 per test ......................... $250.00 Atterberg Limits Test 2 tests @ $32.00 per test ......................... $64.00 City of Coppell ~L~ ~ November 1, 1995 Percent Material Finer than No. 200 Sieve 2 tests @ $18.00 per test ......................... $36.00 Total Laboratory Testing ......................... $350.00 Field Testing In-Place Moisture Density Tests 16 tests @ $25.00 per test (minimum of 4 tests per trip) ...... $400.00 Trip Charges 4 trips @ $12.50 per trip ......................... $50.00 Total Field Testing ............................. $450.00 Total of Earthwork Testing for Utilities ................. $800.00 H. BUILDING PAD Laboratory_ Testing ASTM D698 Moisture-Density Relationship 1 test @ $125.00 per test ......................... $125.00 Atterberg Limits Test 1 test @ $32.00 per test .......................... $32.00 Percent Passing No. 200 U.S. Sieve 1 test @ $18.00 per test .......................... $18.00 Total Laboratory Testing ......................... $175.00 Field Testing In-Place Moisture Density Tests 18 tests @ $25.00 per test (minimum of 4 tests per trip) ...... $450.00 Trip Charges 3 trips @ $12.50 per trip ......................... $37.50 Total Field Testing ............................. $487.50 Total of Earthwork Testing for Building Pad ............. $662.50 GEE Consultants, Inc. Pr,,posal No. 051004 Page 2 City of Coppell ~ November 1, 1995 III. DRILLED STRAIGHT-SHAFT PIERS Laboratory Testing Portland Cement Concrete Mix Design 1 each @ $120.00 each .......................... $120.00 Confirmation Mix Design Test Cylinders 6 each @ $20.00 per each ......................... $120.00 Total Laboratory Testing ......................... $240.00 Field Inspection Sampling Concrete Mix Design Materials 8 hours @ $29.75 per hour ........................ $238.00 Continuous Inspection of Pier Drilling and Concreting (Including Reinforcing Steel) (Excluding all overtime and cancellations) (Based on 7 piers per day after November 1, 1995 for completion of project) 428 Hrs. @ $29.75 per hour ..................... $12,733.00 ' Compressive Strength Concrete Cylinders (With Inspection) (Based on 1 set of 4 cylinders per day) 184 tests @ $13.00 per test ...................... $2,392.00 Trip Charges 47 trips @ $25.00 per trip (over 4 hours) ............. $1,175.00 Total of Field Inspection ........................ $16,538.00 Total of Pier Inspection ........................ $16,778.00 IV. SUSPENDED SLAB CONCRETE Field Inspection and Testing Reinforcing Steel Inspection 2 Hrs. @ $29.75 per hour ......................... $59.50 Continuous Inspection of Concrete Placement (Based on 1 Days C :sting of 1800 C.Y.) (Excluding Overtime) 9.5 Hrs. @ $29.75 per hour ....................... $282.63 GEE Consultants, Inc. Proposal No. 051004 Page 3 City of Coppell 2, ~ November 1, 1995 Compressive Strength Concrete Cylinders (With Inspection) (Based on 1 set of 3 cylinders per 150 cubic yards) 36 tests @ $13.00 per test ......................... $468.00 Trip Charges 1 trip @ $25.00 per trip .......................... $25.00 Total of Field Suspended Slab Concrete Inspection and Testing . . $835.13 V. PRECAST WALL CONCRETE PANELS Laboratory_ Testing Portland Cement Concrete Mix Design (Using Same Aggregate) 1 each @ $50.00 per each ......................... $50.00 Confirmation Mix Design Test Cylinders 6 each @ $20.00 per each ......................... $120.00 Total of Laboratory Testing ........................ $170.00 Field Inspection and Testing Continuous Inspection of Concrete Placemere (Based on fabrication on site of 6 panels per day) (Including reinforcing steel inspection) 48 Hrs. @ $29.75 per hour ...................... $1,428.00 Compressive Strength Concrete Cylinders (With Inspection) (Based on I set of 3 cylinders per 100 cubic yards or fraction thereof) 18 tests @ $13.00 per test ......................... $234.00 Trip Charges 6 trips @ $25.00 per trip ......................... $150.00 Total of Field Testing ......................... $1,812.00 Total of Precast Wall Panel Concrete Inspection and Testing . . $1,982.00 GEE Consultants, Inc. Proposal No. 051004 Page 4 City of Coppell ,.L, ~ November 1, 1995 VI. DOMED ROOF CONCRETE PANELS Field Inspection and Testing Continuous Inspection of Concrete Placement (Based on-site casting of 21 roof panels per day) (Including reinforcing steel) 64 Hrs. @ $29.75 per hour ...................... $1,904.00 Compressive Strength Concrete Cylinders (With Inspection) (Based on 1 set of 3 cylinders per 100 cubic yards or fraction thereof) 24 tests @ $13.00 per test ......................... $312.00 Trip Charges 8 trips @ $25.00 per trip ......................... $200.00 Total of Field Domed Roof Concrete Inspection and Testing . . $2,416.00 VII. WALL SLOTS Laboratory_ Testing Portland Cement Concrete Mix Design (Using Same Aggregate) 1 each @ $50.00 per test ......................... $50.00 Confirmation Mix Design Test Cylinders 6 each @ $20.00 per each ......................... $120.00 Total of Laboratory Testing ........................ $170.00 Field Inspection and Testing Part-time Inspection of Concrete Placement (Based on 1 day to cast all 36 slots) 4 hours @ $29.75 per hour ........................ $119.00 Compressive Strength Concrete Cylinders (With Inspection) (Based on 1 set of 3 cylinders per 100 cubic yards or fraction thereof) 3 tests @ $13.00 per test ......................... $39.00 Trip Charges 1 trip @ $25.00 per trip .......................... $25.00 Total of Field Testing ........................... $183.00 Total of Wall Slot Testing ......................... $353.00 GEE Consultants, Inc. Proposal No. 051004 Page 5 City of Coppell ~L. ~ November 1, 1995 VIII. DOME SLOTS Laboratory Testing Portland Cement Concrete Mix Design (Using Same Aggregate) 1 each @ $50.00 per each ......................... $50.00 Confirmation Mix Design Test Cylinders 6 each @ $20.00 per each ......................... $120.00 Total of Laboratory Testing ........................ $170.00 Field Inspection and Testing Part-time Inspection of Concrete Placement (Based on 3 days casting) 12 hours @ $29.75 per hour ....................... $357.00 Compressive Strength Concrete Cylinders (With Inspection) (Based on 1 set of 3 cylinders per 100 cubic yards or fraction thereof) 9 tests @ $13.00 per test ......................... $117.00 Trip Charges 3 trips @ $25.00 per trip ......................... $75.00 Total of Field Testing ........................... $549.00 Total of Laboratory and Field Testing .................. $719.00 IX. DOME RING Field Inspection and Testing Part-time Inspection of Concrete Placement (Based on 1 day to cast eraire ring) 5 hours @ $29.75 per hour ........................ $148.75 Compressire Strength Concrete Cylinders (With Inspection) (Based on 1 set of 3 cylinders per 100 cubic yards or fraction thereof) 3 tests @ $13.00 per test ......................... $39.00 GEE Consultants, Inc. Proposal No. 051004 Page 6 City of Coppell '~ "" November 1, 1995 Trip Charges 1 trip @ $25.00 per trip .......................... $25.00 Total of Dome Ring Testing ....................... $212.75 X. SHOTCRETE Field Testing Technician to Cut 6 Cores from 4 Different Shotcrete Panels (Based on one panel each for corewall, cove, wire cover and covercoat) 12 hours @ $29.75 per hour ....................... $357.00 Diameter-Inches of Shotcrete Coring (With Technician Time) 168 Diameter-Inches @ $2.00 per diameter-inch ........... $336.00 Capping and Testing Shotcrete Cores 24 tests @ $17.50 per test ......................... $420.00 Total of Laboratory Testing . . . ~ .................. $1,113.00 Field Inspection and Testing Part-time Inspection of Shotcrete Operations including Slump and Air Testing (Based on 4 hours each for corewall, cove, wire cover and covercoat) 16 hours @ $29.75 per hour ....................... $476.00 Trip Charges 4 trips @ $25.00 per trip ......................... $100.00 Total of Field Testing ........................... $576.00 Total of Shotcrete Laboratory and Field Testing ......... $1,689.00 TOTAL OF ALL INSPECTION AND TESTING SERVICES $26,447.38 Our total estimated fee to perform the aforementioned tests and services is $26,447.38. It should be noted that this proposal is based on the estimated number of tests and quantities mentioned in this proposal and not a lump sum price. The construction sequence or job conditions may require more or fewer testing or inspection. Only work which is actually performed will be charged for and all charges will be in accordance with the corresponding unit fees quoted in this proposal or our Schedule of Fees. GEE Consultants, Inc. Proposal No. 051004 Page 7 City of Coppell "" November 1, 1995 We understand we have been selected for this project and, therefore, when providing this estimate, are not in violation of laws governing procurement of professional engineering contracts with public entities. If this proposal is acceptable to you, please sign the enclosed copy, along with the Agreement for Materials Engineering and Related Construction Inspection and Materials Testing Services, and mail it to us at your earliest convenience. We trust the information provided herein is sufficient for your use. Should you have any comments and/or questions, please do not hesitate to contact us. We are looking forward to working with you. Sincerely, GEE Consultants, Inc. Dinesh J. Gupta, M.S.C.E., E.I.T. Richard W. Gee, P.E. Project Engineer President DHG:RWG/Iej Attachment cc: Mr. Gary Hendricks - Shimek, Jacobs and Finklea GEE Consultants, Inc. Proposal No. 051004 Page 8 AGREEMENT FOR MATERIALS ENGINEERING AND RELATED CONSTRUCTION INSPECTION AND MATERIALS TESTING SERVICES THIS AGREEMENT is by and between: Mr. Ken Griffin, P.E. City Engineer City of Coppell P.O. Box 478 Coppell, Texas 75019 hereinafter called CLIENT and GEE CONSULTANTS, INC., a Texas corporation, hereinafter called GEE, who agree as follows: 1. DECLARATIONS. CLIENT desires to engage GEE to provide Materials Engineering and related construction inspection and materials testing services in connection with CLIENT's project ("THE PROJECT") described as follows: Coppell Ground Storage Tank No. 2 Coppell, Texas Gee has submitted a fee schedule to CLIENT, a copy of which is attached hereto and made a part hereof as Exhibited A, for Materials Engineering and related construction inspection and materials testing services, which fee schedule is acceptable to CLIENT. 2. SCOPE OF WORK. GEE shall provide Materials Engineering and related construction inspection and materials testing services for THE PROJECT in accordance with the accompanying proposal "scope of services" made a part hereof as Exhibit B and the "terms and conditions" set forth on the back of and made a part of this Agreement. EXECUTED THIS 14 day of November , 1995. CLIENT ~-/2r'Y OF.. ~..__~ "')~'~<~x~__ '" Title: ~ 'd~ Y~ ~ Title: President Date: ~. TO BE COMPLETED BY CLIENT: FOR PAYMENT OF SERVICES: Firm: Address: .Zip Code: __ Phone No. A~ention: Title: Invoice to the Account of: FOR APPROVAL OF INVOICE(S): If the invoice is to be mailed for approval to someone other than the account charged, please indicate where to mail the invoice in the space below. Firm: Address: Zip Code: ~ Phone No. Attention: Title: TERMS AND CONDITIONS TO AGREEMENT FOR MATERIALS ENGINEERING AND RELATED CONSTRUCTION INSPECTION AND MATERIALS TESTING SERVICES ARTICLE 1. SERVICES: GEE will: with recommendations contained in any correspondence or verbal 1.1 Act for CLIENT in a professional manner, using that degree of care and recommendation issued by GEE. skill ordinarily exercised by and consistent with the standards of the pro- fession practicing in the same or similar locality of THE PROJECT site. 3.3 GEE is not authorized to revoke, alter, relax, enlarge or release any re- quirement of THE PROJECT specifications or other contract documents 1.2 Provide only those services that, in the opinion of GEE, lie within the nor to approve or accept any portion of the work, unless specifically technical and professional areas of expertise of GEE and which GEE is authorized in writing by CLIENT or his authorized representative. GEE adequately staffed and equipped to perform. shall not have the right of rejection or the right to stop the work, except for such periods as may be required to conduct the sampling, testing or 1.3 Perform all technical services under the general direction of a Registered inspection of operations covered by the Agreement. Professional Engineer and in substamial accordance with the basic re- quirements of the appropriate Standards of The American Society for 3.4 This Agreement may be terminated by either party on ten (10) days written Testing and Materials, where applicable, or other standards designated by notice or by mutual agreement. If this Agreement is terminated by either CLIENT. party, GEE shall be paid in full for all services performed through the ter- mination date, and the CLIENT shall be provided with a complete report 1.4 Promptly submit formal reports of all tests, inspections and services per- of the results of test and analysis conducted prior to termination. formed indicating where applicable, compliance with THE PROJECT specifications or other contract documents. Such reports shall be com- 3.5 Neither CLIENT nor GEE may delegate, assign, sublet or transfer his plete and factual, citing the tests performed, methods employed, values duties or interest in this Agreement without the whtten consent of the other obtained, parts of the structure or PROJECT area involved. party. 1.5 Employ testing machines which have been calibrated within a period not 3.6 The only WARRANTY made by GEE in connection with its services per- exceeding twelve months from the time of use by devices of accuracy formed hereunder is that it will use that degree of care and skill as set traceable to the National Bureau of Standards of the United States forth in Article 1.1 above. No otherWARRANTY, expressed or implied, Departxnent of Commerce and, upon request, submit to CLIENT, or his is made or intended for services provided hereunder or furnishing oral or authorized representative, documentation of such calibration. written reports of findings made. 1.6 Consider all reports to be the confidential property of CLIENT, and ARTICLE 4. INSURANCE: distribute reports only to the persons, organizations or agencies specifically designated in writing by CLIENT or his authorized 4.1 GEE shall secure and maintain throughout the full period of this Agree- representative. merit sufficient insurance to protect it adequately from claims under ap- plicable Workmen's Compensation Acts and from claims for bodily injury, 1.7 Retain all pertinent records relating to the services performed for a period death or property damage as may arise from the performance of services of five years following submission of the report, during which period the under this Agreement. GEE will, upon request, file certification of such records will be made available to CLIENT at all reasonable times. insurance coverage with CLIENT or his authorized representative. Within the limits and conditions of such insurance, GEE agrees to indemnify and ARTICLE 2. CLIENT'S RESPONSIBILITIES: CLIENT or his authorized save CLIENT harmless from and against any loss, damage, or liability representative will: arising from any negligent acts by GEE, its agents, staff and consultants employed by it. GEE shall not be responsible and CLIENT shall 2.1 Provide GEE with all plans, specifications, addenda, change orders, ap- indemnify GEE for any loss, damage or liability arising from any negligent proved shop drawings and other information for the proper performance acts by CLIENT, its agents, staff, and other consultants employed by it, of GEE. and any claim asserted against GEE unless it shall be determined that such claim is based on and resulted from failure by GEE to pe~orm its services 2.2 Issue authorization in writing, giving GEE free access to THE PROJECT hereunder in accordance with this Agreement. site, and to all shops or yards where materials are prepared or stored. 4.2 No insurance, of whatever kind or type, which may be carried by GEE, 2.3 Designate in writing a person orfirmto act asCLIENT's representative is to be considered as in any way limiting the contractor's or with respect to GEE's services to be performed under this Agreement; subcontractor's responsibility for damages resulting from his operations or such person or firm to have complete authority to transmit instructions, for furnishing work and materials to THE PROJECT. CLIENT agrees, receive informatlonanddata, interpret anddefineCLIENT'spoliciesand therefore, to include, or cause to be included in THE PROJECT's decisions with respect to THE PROJECT and to order, at CLIENT's ex- construction contract, such requirements for insurance coverage and pense, such technical services as may be requested by GEE. performance bonds to be secured and maintained by THE PROJECT contractor as CLIENT deems adequate to indemnify CLIENT, GEE, and 2.4 Designate in writing those persons or firms who are authorized to receive other concerned panics, against claims for damages and to insure copies of GEE's inspection and test reports. compliance of work performance and materials with THE PROJECT requirements. 2.5 Advise GEE sufficiendy in advance of any operations so as to allow for assignment of personnel by GEE for completion of the required services. ARTICLE 5. PAYMENT: Such advance notice shall be in accordance with that established by mutual agreement of the parties. 5.1 CLIENT will pay GEE for services and expenses in accordance with the attached fee schedule (Exhibit A). GEE will submit progress invoices to 2.6 Direct THE PROJECT contractor, either by the Construction Contract or CLIENT monthly and a final invoice upon completion of its work. Each direct written order to: invoice, on presentation, is due and payable by CLIENT or his authorized (a) Secure and deliver to GEE, without cost to GEE, preliminary representative. representative samples of those materials he proposes to use which require testing, together with any relevant data of the materials. 5.2 GEE shall be paid in full for all services under the Agreement, including (b) Furnish such casual labor and all facilities needed by GEE to obtain any additional services in excess of those stated in the original Agreement, and handle samples at THE PROJECT and to facilitate the specified as specifically authorized by CLIENT. inspection and tests. (c) Provide and maintain for the use of GEE, adequate space at THE 5.3 The CLIENT's obligation to pay for the work contracted is in no way PROJECT for safe storage and proper curing of test specimens dependent upon the CLIENT's ability to obtain financing, approval of which must remain on THE PROJECT site prior to testing. governmental or regulatory agents, or upon the CLIENT' s successful com- pletion of the project. ARTICLE 3. GENERAL CONDITIONS: ARTICLE 6. EXTENT OF AGREEMENT: 3.1 GEE, by the performance of services covered hereunder, does not in any way assume, abridge or abrogate any of those duties, responsibilities or The Agreement, including these terms and conditions, represents the entire authorities with regard to THE PROJECT customarily vested in THE agreement between CLIENT and GEE and supersedes all prior negotia- PROJECT architects, design engineers, or any other design agencies or tions, representations or agreements, written or oral. The Agreement may authorities. be amended only by written instruments signed by CLIENT and GEE. 3.2 GEE shall not be responsible for acts of omissions of any party or panics ARTICLE 7. APPLICABLE LAW: involved in the design of THE PROJECT or the failure of any contractor or subcontractor to construct any aspect of THE PROJECT in accordance The Agreement shall be governed by the laws of the State of Texas.