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Home My WebLink AboutItem 02 - Grapevine Water Treatment Plant ExpansionITEM # e. MEMO TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: ROGER NELSON, CITY MANAGER Of MEETING DATE: FEBRUARY 1, 2005 SUBJECT: AWARD OF AN ENGINEERING SERVICES CONTRACT FOR QUALITY ASSURANCE AND TESTING FOR THE GRAPEVINE WATER TREATMENT PLANT EXPANSION RECOMMENDATION: City Council to consider approval of an engineering services contract with Deltatek Engineering in the amount not to exceed $25,125.00 for construction phase inspection services on the Water Treatment Plant Expansion project, authorize staff to execute said contract and take any necessary action. FUNDING SOURCE: Funds are available as follows: Funding Source A000unt Amount Award Percent 01 Utility Bonds 20048940 -5347 -000003 -SW $ 160,000.00 5.0% 95 Utility Bonds 20048930 -5341 -000018 -WA $ 194,750.00 6.1% 99 Utility Bonds 20048930 -5345 -000016 -WA $ 285,079.00 9.0% 01 Utility Bonds 2008930 -5347 -000009 -WA $ 1, 395, 884.00 44.1% 01 Utility Bonds 200 -48930 -5347 -000010 -WA $ 1,133,087.00 $ 25,125.00 35.8% TOTAL $ 3,168, 800.00 $ 25,125.00 100.0% Contingency TOTAL Amount Award Percent $ 352,450.00 11.1% $ 2,500,000.00 $ 25,125.00 78.9% $ - 0.0% $ 316, 350.00 10.0% $ 3,168,800.00 $ 25,125.00 100.0% January 25, 2005 (2:07PM) BACKGROUND: The Water Treatment Plant and Hilton Lift Station require enlarged facilities to keep up with demand created by growth in the Grapevine Utility System. The Water Treatment Plant Expansion scope of construction includes a new 1.2 million gallon storage tank, new high service pumps, baffles for the existing ground storage tanks and additional pumps for the Hilton Lift Station. Deltatek Engineering proposes to provide quality assurance and testing services for the construction of the improvements at the Water Treatment Plant. The attached contract would provide for construction phase services for testing of concrete and soils along with on-site observation for welding and painting of the new and existing ground storage tanks. The fee is not to exceed $25,125.00. The unique knowledge and expertise in steel tank design and construction phase testing allows Deltatek Engineering to provide a high level of service at an economic price for this project. Staff recommends approval of the engineering services contract. MS/ms January 26, 2005 (10:49AM) GENERAL SCOPE OF SERVICES GRAPEVINE MUNICIPAL WATER TREATMENT PLANT EXPANSION City of Grapevine, Texas January 2005 PROJECT SUMMARY The scopes of services consist of Quality Assurance and Testing services for the construction of a 1.3 MG welded steel clear well and ringwall foundation. Installation of interior baffles in the existing four (4) clear wells including new clear well. Construction of an open channel concrete flume. This facility is located at 2600 Fairway Drive, Grapevine, Texas. Part 1.0 - Construction of 1.3 MG Welded Steel Clearwell 1.01 Ringwall Foundation 1.01.1 Observe the foundation excavation for ringwall foundation. Review installation of reinforcement to ensure compliance with construction documents. 1.01.2 Provide on-site technician to collect concrete compressive strength cylinders for the tank support system to include but not limited to the ringwall foundation, and flume. 1.01.3 As a minimum, one set of four cylinders will be collected and tested at 14 day and 28 days for each 30 cubic yards of concrete placed as part of the ringwall foundation. 1.01.4 Test cylinders will be collected and tested for all structural foundation. 1.01.5 Placement of the reinforcement steel and the orientation will be checked for compliance with the contractor's shop drawings, construction documents, local code, and ACI. 1.02 Soil Density and Compaction 1.02.1 Provide onsite nuclear density tests for the following: • Fill material within the 94 feet diameter ringwall + Fill material 5 feet outside of ringwall 1.03. Steel Fabrication and Erection 1.03.1 Deltatek Engineering shall provide an on-site field representative (shop and field) to review steel structural installation for new clear well and baffle in all five (5) clear wells. In addition, inspect installation of roof hatches, gravity vent, and side manways including overflow system. Perform radiographic tests as required to identify insufficient penetrations (IP). The radiographic will only performed on submerged surfaces not including floor plates. Perform visual observation of all welding for adequacy and workmanship. The steel fabrication will include the following: • Floor plates lap joints per TCEQ • Shell plates butt joints and x-ray of weld seams • Roof rafters, end brackets, gussets, fasteners, and center thrust ring and center column including base plate • Roof plates lap joints • Roof hatches • Side manway • Roof gravity vent & insect screen 1.04 Protective Coatings 1.04.1 Deltatek Engineering shall provide on-site inspection to perform quality control observation for surface preparation and paint application of the tank interior/exterior and perform all required testing in order to comply with manufacture's data sheet as well as specifications. The quality control observation shall include metal substrate profile measurements, wet/dry film thickness measurements, checking surface temperature/dew point prior to application, Elcometer Adhesion test if required, and holiday detection tests on tank interior coating system and all interior areas affected by welding for baffle installation. 1 of 2 Part 2 - Cost Proposal 2.01 uality Assurance Phase Description Cost Rin wall Foundation Engineer - Six (6) hrs @ $95.00 per hr $570.00 Technician - Thirty (30) hrs @ $55.00 per hr $1,650.00 Compressive Strength Tests Concrete tests - Five (5) sets @ $332.00 per set $1,660.00 Soil Density and Compaction Proctor - four (4) @ $250.00 each $1,000.00 In place density - Thirty (30) @ $30.00 per test $900.00 Atteber limit - Five (5) $50.00 each 250.00 Steel Fabrication, Erection X-ray Engineer - Ten (10) hrs @ $85.00 per hr $850.00 Technician — One hundred (100) hrs @ $55.0 per hr 5,500.00 X-ray - twenty (20) @ $50.00 each $1,000.00 Protective Coatings Engineer — Fifteen (15) hrs @ $85.00 per hr $1,275.00 Technician — One hundred fifty (150) hrs @ $55.00 per hr $8,250.00 Engineering Services Reports 6 hrs @ $185.00/hr $1,110.00 Clerical Twenty (20) hrs @ $45.00/hr $900.00 Prints, re roductions, and Rostage lump sum $210.00 TOTAL QUALITY ASSURANCE $25,125.00 Fee Schedule Engineer $95.00/hr Technician $55.00/hr —� Clerical $45.00/hr DELTATEK ENGINEERING Name: Bahram Niknam APPROVED CITY OF GRAPEVINE Name: Title: Principal -in -Charge Title: _ Signature: _�&Ww Signature: Date: January 17, 2005 2of2 Date: