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SS9402C-PR 980406April 6, 1998 10555 I~ewkirk Slreet S u ile 530 Dallas, Texas 75220 912.831 .1 1 ! 1 FAX 972.831.0800 The City of Coppell 255 Parkway Boulevard P.O. Box 478 Coppell, Texas 75019 Mr. Kenneth M. Griffin, P.E. Assistant City Manager City Engineer Re: CONFIRMING PROPOSAL FOR CONSTRUCTION MATERIALS TESTING AND INSPECTION SERVICES Sewer Line Backfill Repairs Bethel Road - Grapevine Creek to Near Royal Lane Coppell, Texas PBT Proposal No. 98-096 Dear Mr. Griffin: Patton, Burke & Thompson (PBT) is pleased to submit this confirming proposal to perform construction materials testing and inspection services during remediation of the sewer line backfill along Bethel Road in Coppell, Texas. This proposal is based upon repairs recommended in our geotechnical report(Job No. 1345, dated January 21, 1998), an estimate of 15 days of constructiOn, as well as PBT's exPerience with similar type projects. As we understand, the proposed project will consist of excavation and filling of approximately 4,000 lineal feet of 8-foot wide trench to a depth of 3-feet and lime stabilization of the resulting sUbgrade. Patton, Burke & Thompson will monitor excavation, document fill materials removed from the trench, and monitor and test fill placement. Inspection and testing will be performed on a full-time basis. Pi*on, Burke d~ Thompson Engbeeri~j Consultants City of Coppell, Texas Bethel Road Proposal 98-096 Page 2 SCOPE OF SERVICES Based upon our discussions with you and the assumptions presented in this proposal, we have developed the following recommended scope of services for this project: Inspection and Density. Testing of Fill and Backfill: A representative of PBT will be available on a full- time basis during excavation and placement of fill to document the excavation and to observe progress and methods, and to perform moisture/density tests as required. We will rely upon the Contractor or Client to notify PBT at least 24-hours in advance of when services are required. Testing methods used will be conducted in general accordance with project specifications and ASTM standard test methods. Other laboratory testing will be conducted as deemed necessary or as requested by the Contractor to evaluate conformance of fill materials with project specifications. Reports, reviewed and signed by a Texas Registered professional engineer, will be mailed to the Contractor following each site visit. ESTIMATED FEES We propose to provide the anticipated services on a unit-rate basis in accordance with the fee schedule presented in Table I. We anticipate a full-time Senior Engineering Technician or Staff Engineer will be required for this project, as well as occasional visits by a senior-level engineer to observe the excavation. We have provided you with an estimate of our total fees based upon our current joint assumptions regarding the construction sequence. Our fees will be influenced by several factors which are not con_trolled by PBT, including weather, construction schedule and actual quantities. It is PBT's policy, however, to monitor our fees as construction progresses and to advise our Client of any budget considerations. Patton, Burke ~, Thompson Engineering Consultants City of Coppell, Texas Bethel Road Proposal 98-096 Page 3 AUTHORIZATION If you have any questions regarding this proposal, the fee schedule or anticipated fees piease contact us at your convenience. If this proposal is acceptable please sign the Authorization Agreement and return one copy of this proposal to our office. We appreciate the oppommity to be of service to the City of Coppell, and look forward to continuing to work with you on this project. Very truly yours, PAT~ & THOMPSON 98-096.pro Enc: Authorization Agreement Fee Estimate General Terms and Conditions Standard Fee Schedule Dist: City of Coppell - Mr. Ken Griffin, P.E. (2) ASSIGBYMENT AUTHORIZATION The City of Coppell hereby agrees.to the terms of this proposal and the attached General Terms and Conditions (Form 1-95/A). Proposal accepted by: The City of C0ppell * Nan Title Date Patton, Burke d, Thompson Engineering Consultants TABLE I ESTIMATED FEES CONSTRUCTION MATERIALS TESTING & INSPECTION SERVICES SEWER LINE BACKFILL REPAIRS BETHEL ROAD - GRAPEVINE CREEK TO ROYAL LANE COPPELL, TEXAS INSPECTION AND TESTING OF EXCAVATION, BACKFILL AND SUBGRADE PREPARATION Assume 15-working days. Technician to be on site during all excavation and fill operations. Assume occasional visits by a senior-level engineer to observe excavation of materials Senior Engineering Technician - 15 woking days x 9 hrs/day x $35/hr Associate Engineer - 3 visits x 2 hfs/visit x $85Prtr Proctor / Classification Test - 4 tests x $170/test Photo Documentation Report Review - 15 days x $20/day $4,725 510 68O 100 3OO TOTAL ESTIMATED FEES Patton, Burke d~ Thompson Eagiaeeriag Coasultaats patton, Burke & Thompson General Terms and Conditions 1.0 General Patton, Burke & Thompson (PBT) by the performance of services covered hereunder, does not in any way assume any of those duties or responsibilities with regard to the projecfs design professionals or any other design agencies or authorities. Client agrees to finnish or cause to be furnished to PBT, all documents and information known to client that relate to the identity, location, quantity, nature or characterisfi~ of any hazardous or toxic materials on or near the site; In the event that test samples obtained during PBT's work contain substances hazardous to health, safety, or the eavironment, these samples remain in the prope~ of the clienL .- 2.0 Billing PBT will submit progress invoices to client monthly and a final invoice upon completion of services. Each invoice, on presentation, is due and payable by client or his authorized representative. Payment is past due 30 days from invoice date. Client agrees to pay interest of one and one-haft percent (1-1/2%) per month, (but not exceeding thc maxim-m rate allowable by law), on past due accounts. Any attome3/s fees or other costs incurred in collecting any delinquent amount shall be paid by client. 3.0 Standard of Care PBT services will be peffonmxl, within the limits prescribed by its clients, with thc usual thoroughness and competence of the engineering consulting profession, and in accordance with the standard for professional services at the time and under similar conditions those services are rendered. No other warranty or representation, either expressed or implied, is included or intended in PBT's proposals, contracts, or reports. 4.0 Liability PBT's liability shall be limited to injury or loss caused by the negligence of PBT, its subcontractors, and/or agents hereunder. PBT has neither created nor contributed to the creation or existence of any hazardous, toxic, pollutant, or otherwise dangerous substance or condition at the site, and its compensation hereunder is in no way commellsurato with the potential risk of injury or loss that may be caused by exposure to such substances or conditions. PBT's liability for injury or loss arising from (1) professional errors or omissions and/or (2) vz~t hs-~rdous, toxic, pollutant, or waste gases, liquids, or solid materials shall not exceed $5,000 or our fee, whichever is greater. PBT's liability for injury cr loss arising from comprehensive general and automobile exposures shall not exceed $100,000. The client a~r~cs to defend, indemnify, and hold PBT harmless from any claim~ liability, or defense cost in excess of the limits stated herein for injury or loss sustained by any party from ~xposures allegedly caused by PBT's performance of services hereunder. In the event thc client makes a cloim against PBT, at law or otherwise, for any alleged error, omission or other act arising out of the perfo~aance of its professional services, and to the extent the client fails to prove such claim, then the client shall pay all costs, including attorney's fees, incurred by PBT in defending itself against the claim. 5.0 Applicable Law All general terms and conditions shall be governed by the laws of the State of Texas. Fotm(l-95/A) PATTON, BURKE & THOMPSON SCHEDULE OF CHARGES The compensation to Patton, Burke & Thompson (PBT) for professional services is based upon and measured by the following charge elements. 1.0 Personnel Charges Charges for PBT employees and consultants are based upon hourly rates for the following general labor categories: Engineering Technician I ..................................... $29/hr Engineering Technician II ..................................... $31/hr Engineering Technician 1II $33/hr Senior Engineering Technician ................................. $35/hr CWI/Stmctural Steel Inspector ................................ $40/hr Word Processor/Secretary .................................... $30/tn' Drafting ................................................... $35/hr Staff'Engineer .............................................. $45/hr Geologist .................................................. $55/hr Project Engineer ............................................ $55/hr Senior Engineer .......... $85/hr Principal ................................................. $105/hr Expext Witness (Deposition & Trial) ........................... $125/hr [Note: Time spent in either local or inter-city travel, when travel is in the interest of the work, will be charged for in accordance with the foregoing schedule; however, for non-local travel by public carrier a maximum of eight hours per day will be charged.] 2.0 Equipment Charges PBT equipment, if used, will be billed at the rates noted in the proposal. 3.0 Other Services and Supply Charges Charges for services, equipment and facilities not furnished directly by PBT, and any unusual items of expense not customarily incurred in PBT's normal operations, are computed as follows: Cost plus 15 percent includes surveying services, land drilling equipment, construction equipment, testing laboratories, shipping charges, subsistence, transportation, outside printing and reproduction, long distance communication, special supplies and rentals. · Cost plus 20 percent includes aircraft, watercrat't, and marine drilling equipment. FOP. M (04-9C~B) .'ATTON, BURKE & THOMPSON SCHEDULE OF LABORATORY TESTING CHARGES Visual Unified Classification, sample ............................ $ N/C Natural Moisture Content ........................................ 5.00lea Unit Weight ................................................. 10.00lea Specific Gravity .............................................. 40.O0/ca Atterb~rg Limits (Wet Method) .................................. 3$.00/ea Grain Siz~ Analysis, #200 sieve only ............................. 20.00/~ Grain Size Anslysis, 1-inch to #200 sieve .......................... 3$.00lea Hydrometer Analysis .......................................... 70.00lea Lim~ Se~i~s (LL & PL) ......................... .... ...... : ......155.00lea Unconfined Compression, peak stress only ......................... 3:5.00lea Unconfined Compression, with stress/strain curve ................... $5.001ca Triaxial Shear (UU), per point, pe, ak stress only ..................... 8$;00/ea Triaxial Shear (UU), per point, w/stress-strain ..................... 110.00/ca Triaxial Shear (CU), per point, w/stress-strain ..................... 250.00/ca Triaxial Shear (CU w/pore pressure), per point, w/stress-strain ........ 305.00/ca Direct Shear (UU), per point, w/stress-strain ...................... 120.00/ca Direct Shear (CU), per point, w/stress-strain ....................... 140.00/ca Direct Shear (CD), per point, w/stress-strain ....................... 160.00/¢a 20.00lea Soil Suction (filter paper) ...................................... One-Dimensional Swdl ......................................... 35.00lea On~Dimeasional Swell with Load Back ........................... $$.00/ea One Dimensional Swell with Load Back &Rebound .................. 7$.00/ea Consolidation, w/o Tim~ Plots ................................. 190,00lea Consolidation- with Time Plots ................................. 2$0.001ea Falling or Constant Head Permeability ........................... 17$.00/ea Flexible Membrane Permeability ................................ 300.OO/ea Standard Compaction ........................................ 115.00lea 135.00lea Modified Compaction ................................. : ...... CBR (3-points, includes procto0 ................................ 325.00/ea pH ..................................................... 20.00lea Water Soluble Sulfates ......................................... 30.00lea Resistivity (natural moisture and saturated) ........................ 40.00lea Concr~ Mix design review ........................ ' .............100.00/ea Cylinder Compressive Strength .................................. 11.00/ea Compressive Strength of Concrete Cores .......................... 20.00lea Compressive Strength & Density of Concrete Cores ..................29.00lea Splitting Tensile & Density of Concrete Cores ...................... 29.00lea 15.00lea Flexural Strength of Cast Beams ................................. Concrete or Asphalt Coring ..................................... 8$.00/hr Asphalt Mix Design R~vicw ................................... 200.00lea Hveem stability & density (w/Theoretical Maximum Density) .........200.'00lea Extraction and gradation ...................................... 140.00/ea Form (05/96/L)