The URL can be used to link to this page

Home My WebLink About2020 CON Basile Construction Inc. - P-1 Sewer Upsize Project for Sweetwater High School, CIP No. 19-43 - Change Order #7RECEIVED ENG PVI DEPT. 1070 ..US I3 A 8: 58 CHANGE ORDER MEMORANDUIV iTY OF NATIONAL CITY August 12, 2020 To: Roberto Yano, P.E. Director of Engineering & Public Works/City Engineer Jose Lopez, P.E. Deputy City Engineer Engineering and Public Works Department City of National City From: Alex Preciado Project Manager Project Professionals Corp Project: P1 Sewer Upsize Project CIP No.: 19-43 Subject: Change Order No. 7 Change Order No. 7 provides for: The additional 48.9 tons of %-inch rock for the rock bedding of the new 12-inch PVC sewer main. Supporting Information: During operations to install the new 12-inch PVC sewer main, the Contractor encountered unsuitable subgrade throughout the entire span of the trench line within Sweetwater High School's ball field. The existing 8-inch VCP Pipe had various sags and inconsistencies that allowed for the surrounding soils to saturate over time. At this time Atlas Engineering West, the Soils Tech Engineering firm for this project, analyzed the existing conditions and recommended to over -excavate and place 12-inches of %-inch rock to stabilize and provide uniform support of the pipe to prevent sag. The additional 6-inches of rock bedding will minimize future City maintenance. Time Adjustment: Zero (0) additional days are added to the contract time for the additional 48.9 tons of -inch rock. Cost Adjustment: The additional tonnage needed was captured under an agreed lump sum price. Attached is the calculation breakdown and analysis for the additional 48.9 tons needed for the additional 6-inch rock bedding. The total amount for this material is $989.99. rgJect Manager g'ZQLo Date C., 0%121) k - cPlt�i oBNi� -•� NATI , ' ' CHIT - tNa6xi�o�ilT>�� P1 SEWER UPSIZE PROJECT CHANGE ORDER NO. 7 CIP NO. 19-43 August 12, 2020 Contractor: Basile Construction, Inc. 7952 Armour Street San Diego, CA 92111 This Change Order modifies Contractor's and the City's obligations and rights under the abovementioned contract. This change order is not effective until approved by the City. Time adjustment: Zero (0) working days are added to contract time for the additional 48.9 tons of %-inch rock for the rock bedding of the new 12-inch PVC sewer main. Cost of Change Order: The City and the Contractor agree that the Contractor shall proceed with the procurement and placing of additional 48.9 tons of %-inch rock per the attached Geotech recommendation to stabilize and provide uniform support of the pipe to help prevent sag. All associated work, labor, materials, and equipment is captured under an agreed lump sum price of $989.99. Total Cost of Change Order Recommended by Project Manager: $989.99 $ 989.99 Date: `S/3je_ 20 By signing this Change Order the Con actor confirms that he/she is completely familiar with and has fairly negotiated Its price, terms and conditions. If this Change Order is approved, Contractor will provide all of the equipment, materials and labor necessary to provide a complete work as described above at that the price stated herein. Contractor confirms that the price is fair and complete and represents all costs associated with the work, including but not limited to all e. '.ment, materials, labor, supervision, overhead, fees, bonds, insurance, profit, etc. and that there will b• no urther compensation. All of the terms and conditions of the original contract documents are incorpo :ted erein. The signer for the Contractor confirms that he/she is authorized to bind the Contractor to this han: • Order. Agreed and Accepted by Contractor: (Print Name and Title)^,5pyt Approved by City Engineer: Approved by City Manager: (Required for change orders $25,000 and above) Date: 06. t3 ZOWD Date: 9 % lsllp2o Date: CALIFORNIA — NATIONAL CITY 331 1PYf'OMpon Alto P1 SEWER UPSIZE PROJECT CHANGE ORDER NO. 7 CIP NO. 18-07 DATE: - WORK PERFORMED BY: Basile Construction DESCRIPTION OF WORK: Additional 6-inches of 3/4" Rock for Sewer Rock Bedding Material ACCOUNTING FOR TIME, MATERIALS, AND EQUIPMENT Unit Qty Rate Total 1) 3/4" Rock TON 48.90 17.40 850.86 2) Environmental Fees EA 2.00 5.00 10.00 $ 860.86 SUB TOTAL: 989.99 GRAND TOTAL: Sub -Total Materials: Materials Markup (15%): 129.13 TOTAL MATERIALS: '-i' aIja 9 1A3 et u(►�1 ovsh = GnQC /0') ")ht'*. eqs 3)(4► SU AO tb' o'b __ ,r X _— OP•Szt, 4h'b`)1 chte kbYU+fl tb 4t+h1 Yt +-1 1,1 ')h -3{h1 4-1 a)h11r`)%i Y-2-? VO Q a it-1 ob+S1 ° tt W -►�cyn,�tti`-� t* mar} 39sT VI Atlas Engineering West, Inc. - San Diego LEA: 47, Exp: 04/25/2021 6280 Riverdale St. San Diego, CA 92120 Phone: (619) 280-4321 Fax: (619) 280-4717 Soils Field Report Client: Project: City of National City 1243 National City Boulevard National City, CA 91950-4301 170309P4.21 City of National City, P1 Sewer Upsize Project CMT D Avenue National City, CA 91950 Date: 07/22/2020 Technician: Thomas, Adam Jurisdiction: Other Contractor Performing Work: Basile Report Number: 1 Certification: ICC Soils# 8063222 Other Jurisdiction: City of National City / Sweetwater Unified School District Start Time: 06 30 End Time: 14:30 Time (Hours): 8.00 Location Details: (Trench Backfill) Line L-6, 12" Sewer Approx. Sta. 9+65 - 10+05 Type of Inspection: Backfill Observation / Pre Grade Inspection Frequency Is: Periodic Equipment Being Utilized: Komatsu WA320 Loader, Komatsu PC 360 LC Excavator, 350G Excavator Source of Material: Native Description of Material: Brown silty, clayey, sand (SC) Compaction Was Confirmed by Means of: N/A Details: I arrived on -site for observation and testing of trench bedding and backfill. (Site Meeting) I discussed with Higgy (Atlas Project Manager), Richard Tally (Inspector), the suitability of trench bottom. Trench had been excavated approx. 21-22' depth. Soil is soft, loose, and wet ,and manually probes with easy effort. We agreed that 12" thickness of 3/4" rock bedding (over -ex an additional 6") would be more suitable to stabilize and provide uniform support of the pipe to help prevent sag. Referenced Special Provisions Section 306-7.1.1 and 306-7.7.1. (Trench Backfill) I observed placement of 3/4" rock Bedding at 12" thickness across bottom of trench. Pipe was installed. 3/4" rock was placed in pipe zone around haunches to 12" above top of pipe. Detectable tape was was installed. Shoring shields being moved loose soil collapsed over pipe zone. I spoke to contractor, contractor will dig down and recompact trench zone backfill. Atlas scheduled to return tomorrow for observation and compaction testing of trench backfill. I sampled soil from spoils stockpile and returned to lab for testing: Sample# 1 Lab Meta# 55793 Soil Description: Brown Clayey Sand (SC) Sample Location: Sewer trench spoils at approx. Sta. 9+80 - 10+00 Lab Tests scheduled: Modified Proctor (ASTM D1557) cc: Project Architect; Structural Engineer; Project Inspector; DSA Regional Office (If Applicable); Page 1 of 2 �T�TTL�T� Atlas Engineering West, Inc. - San Diego • LEA: 47, I~xp: 04/25/2021 6280 Riverdale St. San Diego, CA 92120 Phone: (619) 280-4321 Fax: (619) 280-4717 Soils Field Report Client: Project: City of National City 1243 National City Boulevard National City, CA 91950-4301 170309P4.21 City of National City, P1 Sewer Upsize Project CMT D Avenue National City, CA 91950 Caption: Adjusting grade with 3/4" bedding rock E , Caption: Install sewer tape 12" over top of pipe F NF. E SE O S0-NE (T) • 32 660235,-117.0959/2 tam ♦ 22 rn Caption: Soil sampling trench spoils 0 74'NE (T) • 32.6602,-117.095836 59m ♦ -5 m 22 Jul 2020.0908 4fi O 53*NE (T) • 32d60219. -117.0"16ii021 t6m A 35 m d ♦ Caption: Soil collapsing during moving shoring shield 0 55'NE (T) • 32.660218, -117.095949 t12m ♦ 17 m Status of Work Element Requiring Inspection: Work Element Inspected Pending Completion. Discrepancy: No cc: Project Architect; Structural Engineer; Project Inspector; DSA Regional Office (If Applicable); Page 2 of 2 Judith Hernandez From: Alex Preciado <alex@ppc-sd.com> Sent: Thursday, August 13, 2020 8:50 AM To: Judith Hernandez Cc: Carla Hutchinson Subject: CIP No. 19-43 P1 Sewer Attachments: PPC final w-o line.tiff; CCO #7.pdf CAUTION: This email originated from outside your organization. Exercise caution when opening attachments or clicking links, especially from unknown senders. Good Morning Judy, Please see attached change order for processing. Let me know if you have any questions. Thanks, Alex Preciado, CMIT Construction Manager 4499 Ruffin Road, Suite 250 San Diego, CA 92123 Office 858.634.8180 Fax 858.634.8184 1 G20LG- 32 CONTRACT TRANSMITTAL FORM (Attach as Cover Sheet to Documents dropped off to City Clerk's Office) Date: From (Dept.): ,T 0 re fini Submitted by (First & Last Name): U p(/ !-1 e{ rla Vendor: Resolution: (efiefe-- ale2- YES / NO ct v 9Y/7 Resolution No. (if applicable): 2 3 4 Originals Provided to City Clerk (Select Quantity) 000 Department has Copy / Duplicate Original Vendor has Copy / Duplicate Original