Common use of Geotechnical Investigation Clause in Contracts

Geotechnical Investigation. Review available geotechnical and geologic information in the site area from our in-house project files. • Review historical aerial photographs to help identify the potential locations of buried remnant wood piling at the site. • Coordinate and manage the field explorations, including private and public utility locates, access preparation, and scheduling contractors and GeoDesign staff. • Conduct the following subsurface explorations at the site:  Push to CPT probes to refusal at the site, one in the interior of the site and one near the riverbank. Conduct pore pressure dissipation testing in each of the CPT probes to assist in evaluating the groundwater depth. • Maintain a detailed log of the soil and groundwater conditions encountered in the explorations. Materials will be classified in general accordance with ASTM D2488. • Conduct a laboratory testing program. Specific laboratory tests will be selected based on the subsurface conditions. • Provide preliminary recommendations for: o foundations to support the new amphitheater and, if necessary, cantilever supported path section. We anticipate the amphitheater can be supported on shallow foundations. Deep foundation recommendations and/or ground improvement will be provided for support of the cantilever supported path section if necessary. o site preparation, grading and drainage, stripping depths, fill type for imported material, compaction criteria, trench excavation and backfill, use of on-site soil, and wet/dry weather earthwork. St Helens Riverwalk o permanent and temporary slopes. o preparation of the subgrade for floor slabs and hardscapes. o managing identified groundwater conditions that may affect the performance of structures. o design criteria for retaining walls, including lateral earth pressures, backfill, compaction, and drainage. • Evaluate the potential for liquefaction and lateral spreading at the site and provide mitigation options, if necessary. • Provide seismic design parameters in accordance with the 2018 IBC. We assume a site-specific seismic hazard report will not be required. • Provide a written geotechnical engineering report summarizing the results of our geotechnical evaluation and recommendations.

Geotechnical Investigation. Review available a) Obtain pavement cores and sample, identify and measure the pavement constituents at twenty locations. In addition to the pavement cores, borings will be performed at ten core locations. Perform five borings to termination depths of 25-feet and five borings to termination depths of 5-feet within the roadway (Total Number of Borings: 10; Total Linear Feet of Drilling: 150 LF). b) A geotechnical engineering report will be prepared that includes a description of the field exploration and geologic laboratory tests, boring logs, a discussion of the engineering properties of the subsurface materials encountered, trench excavation design parameters, OSHA soil type classification, utility trench recommendations and pavement recommendations for the proposed project (1) Evaluate the subsurface soils within the limits of the proposed roadway rehabilitation project by obtaining information in on the site area from our in-house project files. • Review historical aerial photographs to help identify the potential locations of buried remnant wood piling at the site. • Coordinate and manage the field explorations, including private and public utility locates, access preparation, and scheduling contractors and GeoDesign staff. • Conduct the following subsurface explorations at the site:  Push to CPT probes to refusal at the site, one in the interior of the site and one near the riverbank. Conduct pore pressure dissipation testing in each of the CPT probes to assist in evaluating the groundwater depth. • Maintain a detailed log of the soil situ soils and groundwater conditions encountered and to provide flexible and rigid pavement sections suitable for 20 and 30-year pavement designs. (2) Provide recommendations on the suitability of recycling the existing asphalt roadway to be re-used as base material for either a flexible or rigid pavement section. If the material is suitable, provide recommendations suitable for 20 and 30-year pavement designs. If milling and reclaiming the existing pavement constituents is not suitable, also provide this recommendation in the explorations. Materials will be classified in general accordance with ASTM D2488. • Conduct a laboratory testing program. Specific laboratory tests will be selected based on final report. (3) Provide recommendations for the subsurface conditions. • use of either reinforced concrete or non- reinforced concrete pavement and the suitability for each option. (4) Provide preliminary recommendations for: o foundations to support the new amphitheater and, if necessary, cantilever supported path section. We anticipate the amphitheater can be supported on shallow foundations. Deep foundation recommendations and/or ground improvement will be provided for support of the cantilever supported path section if necessary. o site preparation, grading and drainage, stripping depths, fill type for imported material, compaction criteriasoil parameters, trench excavation design parameters, OSHA soil type classification and backfillrecommendations needed by the contractor/engineer to design braced excavations for installation of underground utilities. In addition, use prospective contractors will utilize the information provided in this report during the bidding process. A. Consultant must not commence work under this agreement until all insurance required herein has been obtained and such insurance has been approved by the City. The Consultant must not allow any subcontractor to commence work until all similar insurance required of on-site soilthe subcontractor has been obtained. B. Consultant must furnish to the City’s Risk Manager, two (2) copies of Certificates of Insurance, showing the following minimum coverages by insurance company(s) acceptable to the City’s Risk Manager. The City must be named as an additional insured for all liability policies, and wet/dry weather earthworka blanket waiver of subrogation is required on all applicable policies. St Helens Riverwalk o permanent TYPE OF INSURANCE MINIMUM INSURANCE COVERAGE 30-Day Written Notice of Cancellation, non-renewal or material change required on all certificates Bodily Injury & Property Damage Per occurrence - aggregate COMMERCIAL GENERAL LIABILITY including: 1. Broad Form 2. Premises - Operations 3. Products/ Completed Operations 4. Contractual Liability 5. Independent Contractors $1,000,000 COMBINED SINGLE LIMIT AUTOMOBILE LIABILITY to included 1. Owned vehicles 2.. Hired – Non-owned vehicles $1,000,000 COMBINED SINGLE LIMIT PROFESSIONAL LIABILITY including: Coverage provided shall cover all employees, officers, directors and temporary slopesagents 1. o preparation Errors and Omissions $1,000,000 per claim / $2,000,000 aggregate (Defense costs not included in face value of the subgrade for floor slabs policy) If claims made policy, retro date must be prior to inception of agreement; have extended reporting period provisions and hardscapes. o managing identified groundwater conditions that may affect the performance of structures. o design criteria for retaining walls, including lateral earth pressures, backfill, compaction, and drainage. • Evaluate the potential for liquefaction and lateral spreading at the site and provide mitigation options, if necessary. • Provide seismic design parameters in accordance identify any limitations regarding who is an Insured WORKERS’ COMPENSATION EMPLOYERS’ LIABILITY Which Complies with the 2018 IBC. We assume a site-specific seismic hazard report will not be required. • Provide a written geotechnical engineering report summarizing the results of our geotechnical evaluation and recommendations.Texas Workers Compensation Act 500,000/500,000/500,000

Geotechnical Investigation. Review available Perform geotechnical and geologic information in environmental investigations and prepare reports that comply with City of San Diego, Guidelines for Geotechnical Reports (Development Services, 2011) as appropriate for the site area from our in-house project filesMorena Pump Station, WW Force main and Brine conveyance pipeline and 36 inch and 16 inch water main. • Review historical aerial photographs Geotechnical services shall include soil borings necessary to help identify the potential locations of buried remnant wood piling at the site. • Coordinate and manage the field explorationsobserve, including private and public utility locatestest, access preparationclassify soils, and scheduling contractors and GeoDesign staffmonitor groundwater. • Conduct the following subsurface explorations at the site:  Push to CPT probes to refusal at the siteThe number, one in the interior of the site and one near the riverbank. Conduct pore pressure dissipation testing in each of the CPT probes to assist in evaluating the groundwater depth. • Maintain a detailed log spacing, apd depth of the soil borings shall be determined by the CONSULTANT' s qualified geotechnical engineer or engineering geologist, and groundwater conditions encountered shall consider the various construction methods that may be utilized (open cut, horizontal directional drill, micro- tunnel, auger bore, tunnel boring machine (TBM) etc.). For work within Caltrans Right of Way (ROW) the minimum requirements as stated in Caltrans guidelines shall apply. The CONSULTANT's anticipated required numbers of borings are shown on Table 5. Prior to any soil boring or ground disturbance, appropriate environmental clearance shall be required. All efforts will be made to designate borings in developed areas, however, in Design of Morena Pump Station June 20, 2016 And Conveyance Pipelines (HI66635) A-13 the event this is not feasible and should it be determined that environmental clearances are required, CONSULTANT will develop a supplemental scope and budget to perform the processes and submittals outlined for ministerial approval (Process One) in the explorationsCity's Information Bulletin 511 "Public Projects Site Reconnaissance and Testing" or other environmental clearance process as directed by the CITY. Materials The CONSULTANT shall notify Underground Service Alert (USA) and request utilities ▇▇▇▇-outs prior to advancing borings. CONSULTANT shall not be responsible for damage to utilities·that are not properly marked out by USA. The CONSULTANT will perform borings in the public ROW or other city owned land. Monitoring ▇▇▇▇▇ and/or piezometers will not be installed in CONSULTANT's borings located in the ROW. Should it be determined that monitoring ▇▇▇▇▇ are required in the ROW, CONSULTANT will develop a supplemental scope and budget to perform this work. The CITY will provide access to the Morena Pump Station property as required for CONSULTANT's borings and monitoring ▇▇▇▇▇. Should it be determined that groundwater from CONSULTANT's monitoring ▇▇▇▇▇ would require treatment prior to discharge to the city storm sewer, CONSULTANT will develop a supplemental scope and budget to perform the work. The CONTRACTOR will be classified responsible for proper abandonment of monitoring ▇▇▇▇▇ installed by CONSUL TANT at the pump station. A Phase I Environmental Site Assessment report was conducted as part of the 10% Engineering Design Report for Morena Pump Station and Pipelines. The CONSULTANT shall be responsible for obtaining the required boring and well permits, and disposing of non-hazardous soil and water samples in general accordance with ASTM D2488existing regulations including those of the Regional Water Quality Control Board and the County Department of Environmental Health Services. • Conduct a laboratory testing program. Specific laboratory tests The fees for disposal of contaminated soil and water samples (if any), will be selected based on negotiated at a later date. If during the subsurface conditions. • Provide preliminary recommendations for: o foundations to support the new amphitheater and, if necessary, cantilever supported path section. We anticipate the amphitheater can be supported on shallow foundations. Deep foundation recommendations and/or ground improvement will be provided for support course of the cantilever supported path section if necessarygeotechnical investigation it is believed that soil or groundwater is contaminated due to odor or for other pertinent reasons, the CONSULTANT will perform limited testing of soil cuttings for disposal. o site preparationDisposal fees for contaminated soil and/or groundwater would be negotiated at that time. The CITY will assist the CONSULTANT with providing temporary storage within 1 mile of the project for 55-gallon drums of soil drill cuttings for up to 90 days. The CONSULTANT shall perform an Earthquake Fault Rupture Hazard Investigation and Report in accordance with City of San Diego Guidelines (City of San Diego, grading Guidelines for Geotechnical Reports, Appendix D, Technical Guidelines for Fault-Rupture Hazard Reports, 2011). CONSULTANT's field investigation shall include closely spaced subsurface explorations to investigate possible faulting at the Morena pump station. Should it be determined that additional investigations are required to further investigate faulting, CONSULTANT will develop a supplemental scope and drainagebudget to perform this work. Design of Morena Pump Station June 20, stripping depths, fill type for imported material, compaction criteria, trench excavation 2016 And Conveyance Pipelines (Hl66635) The CONSULTANT shall prepare the Geotechnical Design and Data Report which shall include recommended bedding and backfill, use design and soil loading pressures, seismic analysis and recommended design criteria, analysis on native soil for backfill, slope stability and shoring requirements, liquefaction mitigation, tunnel design· requirements, foundation recommendations and data from field investigations and laboratory analysis. The report shall include discussion of on-site soilpossible dewatering systems, estimated discharge rates, and wetvolumes (if applicable). The CONSULTANT shall prepare a Geotechnical Baseline Report for the tunneled and trenchless pipeline reaches in accordance with American Society Civil Engineers guidelines ("Geotechnical Baseline Reports for Construction", ASCE, 2007). A geological/dry weather earthworkgeotechnical map shall be prepared in accordance with City of San Diego Guidelines (2011). St Helens Riverwalk o permanent and temporary slopes. o preparation of the subgrade for floor slabs and hardscapes. o managing identified groundwater conditions that may affect the performance of structures. o design criteria for retaining walls, including lateral earth pressures, backfill, compaction, and drainage. • Evaluate the potential for liquefaction and lateral spreading It shall include all borings at the site Morena Pump Station and provide mitigation options, if necessary. • Provide seismic design parameters along Conveyance System alignments identified (including those available from the City from past investigations) and geologic conditions in accordance with the 2018 IBCGuidelines. We assume a site-specific seismic hazard report The CONSULTANT shall provide geologic maps of the selected alignment, showing current investigation findings as well as information from past investigations. A geologic cross section should also be provided along the alignment. The CITY will not be requiredprovide copies of borings from past investigations prior to CONSULTANT's investigation. • Provide a written geotechnical engineering report summarizing the results of our geotechnical evaluation Draft Geotechnical Design and recommendations.Data Report (10 copies each) • Final Geotechnical Design and Data Report (10 copies each) • Draft and Final Fault Rupture Hazard Investigation Report (10 copies) • Draft and Final Geotechnical Baseline Report (10 copies) • Geological/Geotechnical Maps(s) (10 copies each)

Geotechnical Investigation. Review available Perform geotechnical and geologic information environmental investigations and prepare reports that comply with City Standards for Geotechnical Reports for Types I and III and IV as appropriate for both North City Conveyance scenarios. Geotechnical services shall include soil borings necessary to observe, test, classify soils, and monitor groundwater. The number, spacing, and depth of the soil borings shall be determined by the CONSULTANT’S qualified geotechnical engineer, and shall consider the various construction methods that may be utilized (open cut, horizontal directional drill, micro- tunnel, auger bore, TBM, etc.) . For work within Caltrans ROW, the minimum requirements as stated in Caltrans guidelines shall apply. The CONSULTANT’S proposal shall specify the number of required borings, as well as a unit price per boring for both the North City to San ▇▇▇▇▇▇▇ Conveyance and the North City to Miramar Conveyance System. Prior to any soil boring or ground disturbance, appropriate environmental clearance shall be required. A Phase I Environmental Site Assessment report was conducted as part of the 10% Engineering Design Report for North City to San ▇▇▇▇▇▇▇ Conveyance System. The Phase I concluded that Phase II environmental site assessment is required. The CONSULTANT shall prepare Phase II environmental site assessment for the San ▇▇▇▇▇▇▇ Conveyance System. The scope and fee for such of this effort shall be included in the fee estimate. Since the Phase I ESA is not completed for the Miramar project, no Phase II EAS is included in this task for the Miramar project. CONSULTANT shall also perform an initial evaluation of environmental considerations related to pipeline alignment and construction techniques. The Phase II Environmental Site Assessment report shall present all findings, conclusions and recommendations relevant to design, including a specific discussion of: • Unique or unusual site/coordinator conditions that suggest any special design that may be required, • Groundwater handling during construction, • Contaminated soil or groundwater, • Develop a soil, groundwater and vapor management plan to be implemented during construction, and • Provide a map which shows locations of potential contaminant sources relative to the proposed alignment. For the Phase II Site investigations and reporting, CONSULTANT will: • Review existing documentation including Phase I ESA and files obtained from Regulatory agencies as identified in the Phase I ESA performed by ▇▇▇▇▇ and ▇▇▇▇▇▇▇▇ (B&C). • Perform a site area from our invisit to locations identified as REC Sites/Cases with High Potential Impact in the B&C Phase I ESA to identify and map proposed boring locations, identify potential constraints to drilling, and assess any needed changes to assumptions made in scoping. Site visits will not be conducted at USMC Miramar Air Station or the former USMC Camp Elliot due to potential for unexploded ordnance (UXO) associated with these sites. • Develop a sampling and analysis plan (SAP), Quality Assurance Project Plan (QAPP) and health and safety plan (HSP) (draft and final). All sites considered for Phase II Site Investigation by CONSULTANT will be combined into a single SAP, QAPP, and HSP, respectively. • Prepare traffic control plans and seek required permits for drilling, as required, in public right of way. • Respond to one consolidated set of comments on the draft plans (HSP is considered to an internal document and is not anticipated to be reviewed, even though it will be submitted with other plans. • Subcontract with qualified environmental driller and California certified analytical laboratory to perform required investigation, disposal of up to five 55-house project filesgallon drums of decontamination water and soil cuttings, and chemical analysis of soil and groundwater. • Ensure utility clearances are done in advance of each site to be drilled, as required by local and state jurisdictions • Upon receipt of analytical data, CONSULTANT will perform a Level II data quality review of the chemical data to determine its suitability for use in design and construction. • Prepare a combined report for all sites associated with the Phase II Site Investigation (draft and final). • Prepare recommendations for use by design teams in developing pipeline design as part of this report. • Respond to one set of consolidated comments on the draft report. To support the design and risk mitigation CONSULTANT will: • Participate in up to 10 meeting with the design team to assess, map and discuss mitigation of contaminated materials during construction. These meetings will be up to 4 hours each, with 4 hours of preparation and 4 hours of the post-meeting activity for two people. • Review historical aerial photographs specifications for management of contaminated soils and dewatering water. • Develop a contaminated media management plan for the corridor and for up to help identify 10 specific locations evaluated as part of the Phase II Site Investigation. The general assumptions that apply to the Phase II Environmental support includes, but is not limited to the following: • The Phase I ESA prepared by B&C represents the potential locations sites along that corridor that require Phase II investigation in advance of buried remnant wood piling design and construction. This scope includes 10 of the sites considered by B&C to be the “RECS with High Potential Impact”. Should a review of the report or other documents indicate that additional sites require investigation in order to mitigate potential design or construction risks, CONSULTANT will prepare a supplemental scope and budget for these investigations. • Two of the sites identified by B&C relate to unexploded ordnance (UXO). This Phase II Site investigation does not include any work related to UXO. This work is being performed by others. Thus, no work will be performed in the vicinity of the USMC Miramar Air Station or the former USMC Camp Elliott, as described in the B&C report (2015). • The CITY will seek site access to private property as required. If site access to private property is not allowed, CONSULTANT will perform drilling activities in the public ROW and will provide qualifications and assumption in reporting based on areas able to be accessed. • The CITY will provide storage for up to five 55-gallon drums of decontamination water and soil cuttings for up to 90 days until analytical results are received, waste manifests are completed, and waste drums are transported for disposal. • All drilling will be done using geoprobe. Drilling will not extend beyond 30 feet below ground surface; no drilling will be advanced into bedrock at the any site. • Coordinate and manage the field explorations, including private and public utility locates, access preparationShould it be determined that additional investigation is required, and scheduling contractors bedrock drilling is required, CONSULTANT will develop a supplemental scope and GeoDesign staffbudget to perform this work. • Groundwater samples will be collected directly from boreholes using a peristaltic pump and disposable tubing; monitoring ▇▇▇▇▇ will not be installed at any site. Should installation of monitoring ▇▇▇▇▇ be required, CONSULTANT will develop a supplemental scope and budget to perform this work. After the Phase II Environmental Site Assessment report is approved by the CITY, CONSULTANT shall conduct geotechnical field investigations including adequate borings, to characterize the alignment. Log borings, collect samples, determine water table, and install monitoring ▇▇▇▇▇ or piezometer in accordance with applicable regulations if groundwater conditions are encountered. Conduct the following subsurface explorations at the site:  Push laboratory analysis of collected samples and perform additional tests as required. Perform seismic studies required to CPT probes to refusal at the site, one support design as defined in the interior Clean Water Structural Guidelines Provide scour and liquefaction analyses as needed. The CONSULTANT shall be responsible for obtaining the required boring and well permits, and disposing of non-hazardous soil and water samples in accordance with existing regulations including those of the site Regional Water Quality Control Board and one near the riverbankCounty Department of Environmental Health Services. Conduct pore pressure dissipation testing in each The fees for disposal of the CPT probes to assist in evaluating the groundwater depth. • Maintain a detailed log of the contaminated soil and groundwater conditions encountered in the explorations. Materials water samples (if any), will be classified in general accordance with ASTM D2488negotiated at a later date. • Conduct a laboratory testing program. Specific laboratory tests will be selected based on The CONSULTANT shall prepare the subsurface conditions. • Provide preliminary recommendations for: o foundations to support the new amphitheater and, if necessary, cantilever supported path section. We anticipate the amphitheater can be supported on shallow foundations. Deep foundation recommendations and/or ground improvement will be provided for support of the cantilever supported path section if necessary. o site preparation, grading Geotechnical Design and drainage, stripping depths, fill type for imported material, compaction criteria, trench excavation Data Report which shall include recommended bedding and backfill, use design and soil loading pressures, seismic analysis and recommended design criteria, analysis on native soil for backfill, slope stability and shoring requirements, liquefaction mitigation, tunnel design requirements, foundation recommendations and data from field investigations and laboratory analysis. The report shall include discussion of on-site soilpossible dewatering systems, estimated discharge rates, and wetvolumes (if applicable). The CONSULTANT shall provide recommendations for worker’s health and safety during the excavation. A geological/dry weather earthworkgeotechnical map shall be prepared in accordance with Clean Water Program (CWP) Geotechnical Guidelines. St Helens Riverwalk o permanent It shall include all borings (including those available from the City from past investigations) and temporary slopes. o preparation of the subgrade for floor slabs and hardscapes. o managing identified groundwater geologic conditions that may affect the performance of structures. o design criteria for retaining walls, including lateral earth pressures, backfill, compaction, and drainage. • Evaluate the potential for liquefaction and lateral spreading at the site and provide mitigation options, if necessary. • Provide seismic design parameters in accordance with the 2018 IBCCWP Guidelines. We assume a site-specific seismic hazard report will not The CONSULTANT shall provide maps of the selected alignment, showing current investigation findings as well as information from past investigations. A geologic cross section should also be required. • Provide a written geotechnical engineering report summarizing provided along the results of our geotechnical evaluation and recommendationsalignment.