00017706 Exhibit A Scope of Work and Specifications.docx

SCOPE OF WORK AND TECHNICAL SPECIFICATIONS

OSU DIATOMACEOUS SILT RESEARCH DRILLING CONTRACT

Fall 2018 Page 1 of 13

SCOPE OF WORK AND TECHNICAL SPECIFICATIONS

ODOT/PSU/OSU DIATOMACEOUS SILT RESEARCH DRILLING CONTRACT

August 2026 Page 13 of 19

EXHIBIT A

SCOPE OF WORK AND TECHNICAL SPECIFICATIONS

The purpose of the work specified herein is to provide drilling, sampling, and in-situ testing as part of a geotechnical investigation at a site known to be underlain by diatomaceous soils. This investigation is being performed in support of settlement and foundation analyses.

All necessary equipment, machinery, tools, lighting, supplies, materials, fuel, mobilization, water, water delivery, setup, site preparation, safety equipment, skilled personnel, and incidentals to perform the specified work shall be provided by the Contractor. No traffic control is required. All explorations shall be at least 50 feet from the railroad tracks (RxR).

At no time shall equipment nor personnel cross RxR tracks, and contractor shall maintain a minimum distance of 50’ from any RxR tracks at all times. Site access will be required to be at locations identified in Exhibit G Figure 1.

The scope of work will include drilling, sampling, and in-situ testing (as appropriate) at the location indicated in Table 1 below. We expect that each 10-ft. drilling interval within diatomaceous layers will contain one undisturbed Shelby tube sample followed by one standard penetration test (SPT) accompanied by a split spoon sample. Vane shear testing (VST) will be performed at approximately 10-ft. intervals. As site conditions allow, vane shear testing will be conducted in each borehole (to be determined in conjunction with the ODOT Project Geologist).

Table 1. Location and approximate depth of exploration.

[ft.]

A truck-mounted drill rig will be able to access the drill sites. The in-situ testing will include standard penetration testing (SPT) and VST. Expected site conditions include fill and colluvium (potentially with large cobbles) underlain by diatomaceous silts (from very soft to very stiff) interbedded with volcanic ash, organics, and sand lenses. Soft diatomaceous silts below the shallow groundwater surface will require undisturbed Shelby tube sampling with piston, Osterberg, or similar samplers.

STATEMENT OF WORK

Project Dates Start Date: Not prior to September 1, 2026.

Final Completion Date: November 17th, 2027

No Work Period: November 18th 2026 thru March 30th 2027, due to winter and inclement weather.

As this SOW supports a university research partnership, the date selected for project start must be negotiated with ODOT to ensure each party is present on-site during project work. No work will be performed on holidays. Weekend work may be scheduled to avoid unnecessary demobilization/remobilization expenses.

Utility Search ODOT shall call for and have underground utilities located and marked before any work at the drill sites begins. Some overhead utilities are present at some locations. The Contractor is advised to either call for similar utility locates or coordinate with the ODOT Project/Field Geologist to have ODOT utility call-in ticket numbers transferred into the Contractor’s name, which is to ensure protection from liability that the Contractor may have otherwise. The Contractor shall not drill within three feet of any marked/identified utility.

Drilling At least one and up to two borings will be advanced at the project site (see Figure 1 in Exhibit G for a vicinity map). The total drilling footage is estimated at approximately 400 feet. Subsurface materials at the site are anticipated to be a mixture of sand, silt, and gravel fill material (≈0-50 ft.) over soft to stiff diatomaceous soils (50-250 ft.) with possible sand lenses up to 5 ft thick, and dense sand and gravel (250 ft. and deeper). Drilling may also go through embankment fill composed of sand with trace fine gravel.

The preferred advancement approach is mud rotary drilling with at least a 4” inner diameter cased hole. Mud rotary drilling will be necessary to maintain positive pressure in the borehole when drilling, testing, and sampling below the groundwater table to prevent basal heave. All fluids shall be contained and recirculated to prevent run off and to conserve water. The following shall be available on site in order to obtain high quality Shelby tube samples:

· Side discharge tricone bit.

· Larger drill rods (i.e., NWJ with 2.625” outer diameter) for consistency of borehole diameter.

· Drill fluid with unit weight at least 1.15 times larger than the unit weight of water.

All used drill fluids and cuttings shall be removed and disposed of by the Contractor. The Contractor should be prepared for up to 300 ft. of mud rotary drilling in a borehole.

These borings shall be constructed and abandoned in accordance with the Oregon Water Resources Department (OWRD) rules and regulations. All geotechnical hole reports shall be filled out using the assigned ODOT/PSU/OSU boring number, signed by the licensed driller, and submitted to the OWRD with a copy submitted to ODOT and the OSU Project Manager.

Sampling Undisturbed Shelby tube samples will be extracted (potentially with piston sampler) immediately prior to SPTs within any diatomaceous soil layer. The Shelby tubes will be 3” diameter tubes. One Shelby tube sample will be obtained in each 10-ft. interval of diatomaceous material or at the discretion of ODOT/ PSU/OSU project personnel, as directed. All Shelby tubes shall be sealed with wax after being brought to the ground surface and prior to capping and taping.

Vane Shear Testing (VST) VST will be performed in the diatomaceous soil layers using the boreholes advanced at each site. Tests shall be performed after every other Shelby tube, alternating with virgin SPTs. Note that split spoon samples will be obtained from the vane shear zone (and blow counts recorded) after each VST. Specifically, the order of operations for drilling/sampling/testing will be as follows:

· advance hole;

· acquire undisturbed sample (Shelby or piston sampler, as appropriate);

· vane shear test;

· standard penetration test;

· advance hole;

· acquire undisturbed sample (Shelby or piston sampler, as appropriate);

· standard penetration test;

· repeat.

As site conditions allow, we expect that vane shear testing shall be conducted to the bottom of each borehole. The Drilling Contractor shall be responsible for performing the VST and will provide the system friction, maximum torque, and residual torque for each test to ODOT/PSU/OSU personnel on site.

The Drilling Contractor shall provide and use, as necessary and appropriate, all equipment required for vane shear testing, including but not limited to: a four-bladed vane, protective casing, vane shoe, reaction casing, calibrated torque rods and torque measurement device, centralizers, and friction or slip couplings.

Access to Drill Site Access to the drill site will be via paved road or otherwise improved surface. ODOT/PSU/OSU will acquire all necessary right-of-entry permissions. Figures 1 and 2 in Exhibit G represent access locations (Figure 1) and approximate boring locations in more detail (Figure 2). For the bore hole site locations to the East of the RxR entry will be North after Burgess Road. For West bore hole site locations entry will be to the South off Hwy97.

At no time shall equipment, personnel cross RxR tracks and contractor shall maintain a minimum distance of 50’ from any RxR tracks.

Water Sources and Delivery Water delivery access will be from the available locations as identified and managed by the Drill Contractor. Sufficiently sized and lengths of water delivery pipe/hose/pumps shall be provided by the Drill Contractor to adequately provide water to the drill rigs (see Section 2.11 of the Technical Specifications).

Anticipated Subsurface Conditions The subsurface materials anticipated to be encountered are compacted embankment fill consisting of sand and fine gravel, native soils consisting of sands, gravels, silts, and clays, possibly with occasional cobbles. Upper units will likely consist primarily of colluvium and stream alluvium with deeper units being comprised largely of very soft to stiff diatomaceous soils with occasional sand lenses. Beyond the deep diatomaceous soils, deep dense sand and gravel is expected.. Shallow groundwater may be present in some or all sampling; past cone penetration soundings detected groundwater around 10 feet bgs.

TECHNICAL SPECIFICATIONS

1.0 SCHEDULE

Work shall be completed by November 17, 2027. The start date will be the date the contractor mobilizes equipment and personnel to the work site. Once the contractor mobilizes equipment and personnel to a given work site, work shall progress continuously until all work at a given site is completed, excluding holidays, subject to the requirements of Section 2.10. In between sites, the contractor may elect to recess as required for mobilization time or schedule constraints.

2.0 MINIMUM REQUIREMENTS FOR ALL DRILLING OPERATIONS

2.1 Control of Work: The Contractor shall always have an on-site responsible supervisor on the job while work is in progress, capable of and with authority to make job site decisions as an official Contractor’s representative.

This work shall consist of drilling, sampling, and testing in soil. Borings shall be advanced at the locations and drilled to depths as directed by the ODOT/PSU/OSU representatives. The Contractor shall be required at all times with all equipment to obtain a high percent recovery. Adequate drill equipment and materials including casing and drill rods should be maintained on location to complete the boreholes to the estimated depths. The Drilling Contractor shall maintain positive pressure in all boreholes advanced below the groundwater table to prevent basal heave. All drilling, sampling, testing and borehole abandonment shall be in accordance with the following test methods and legal requirements:

2.1.1 ASTM D1586-18, “Standard Test Method for Standard Penetration Test (SPT) and Split-Barrel Sampling of Soils”

2.1.2 ASTM D1587-15, “Standard Practice for Thin-Walled Tube Sampling of Fine-Grained Soils for Geotechnical Purposes”

2.1.3 ASTM D6519-23 “Standard Practice for Sampling of Soil Using the Hydraulically Operated Stationary Piston Sampler”

2.1.4 ASTM D5783-18, “Standard Guide for Use of Direct Rotary Drilling with Water-Based Drilling Fluid for Geoenvironmental Exploration and the Installation of Subsurface Water-Quality Monitoring Devices”

2.1.5 ASTM D2573-18, “Standard Test Method for Field Vane Shear Test in Saturated Fine-Grained Soil”

2.1.6 Administrative Rules, Water Resources Department, Chapter 690, Division 240, “Construction, Maintenance and Abandonment of Monitoring Wells, Geotechnical Holes, and Other Holes in Oregon”

2.1.7 Federal and Oregon Occupational Safety and Health Administration (OSHA)

2.1.8 Any and all local or state noise requirements, forestry permits, and permits issued

2.2 Condition of Equipment and Tools: All drilling equipment and tools shall have been maintained in good operating condition prior to being mobilized to the site and shall continue to be maintained in good condition for the duration of the project. Frequent or extended breakdowns shall be cause for rejection of drilling equipment and/or rigs and replacement at no cost to the Agency.

2.3 Property Damage: Water and cuttings discharged from the borings shall be disposed of in a manner consistent with environmental regulations and approved by the ODOT/PSU/OSU representatives. Property damage and contamination of waterways shall not be permitted. When track mounted drill rigs are operated on paved surfaces, steps to protect the paved surfaces from any damage shall be used during unloading or loading, mobilizing to and from sites or during drilling activities. When track or truck mounted drill rigs are operated on open State or private property, steps to protect against excessive (or at the discretion of the property owner) ground damage, such as ruts and torn sod etc., shall be used during unloading or loading, mobilizing to and from sites or during drilling activities. Any damage to State or private property caused by the Contractor shall be repaired within 15 days of such damage by a State-approved method. Measures shall be taken to prevent water or cuttings discharge to any local drainages, streams or wetland areas.

2.4 Personnel Requirements: The Contractor shall furnish a drill crew consisting of at least one journey‑level drill operator who is licensed by the Oregon Water Resource Department as a Monitoring Well Constructor and at least one experienced drill helper. The ODOT/PSU/OSU representatives shall have the authority to suspend work and require the replacement of any Contractor's personnel not exhibiting adequate capability or reasonable safety and responsibility in their job performance. Such replacements shall be made prior to resuming work and within 48 hours after the ODOT/PSU/OSU representative provides notification to the Contractor. Section 5.10 (Standby) shall not be invoked during suspension periods.

2.5 Safety: Safety is of primary concern on this project, for the traveling public, Contractor's crew, and State employees. In the event the ODOT/PSU/OSU representatives determine there are concerns regarding safety, the ODOT/PSU/OSU representatives shall have the authority to suspend work until such time as those concerns are resolved to the satisfaction of the State. The Contractor shall take every precaution necessary to ensure the safety of all parties and the protection of all property associated with this project. The Drill Contractor shall complete daily tailgate meetings to discuss and document a review of the previous day’s safety concerns or hazards and a review of upcoming tasks and actions that will be taken to properly manage safety risks for the current day’s tasks. This tailgate meeting will require the presence of the ODOT/PSU/OSU representatives. The ODOT/PSU/OSU representatives will review and sign the tailgate meeting notes when complete. All persons on the job site shall always wear approved hard hats and ANSI Class 3 reflective safety vests when on ODOT Right of Way or when on or adjacent to any other City, County, or private roadways, multi-use paths, or parking lots. During drilling operations, hearing protection, eye protection, and gloves (when deemed necessary) shall be worn by all personnel, including the ODOT/PSU/OSU representatives. Section 5.10 (Standby) shall not be invoked during suspension periods.

2.6 Equipment: The type of drilling equipment supplied by the Contractor shall be suitable for the terrain and the sampling required as described in the Scope of Work. Drilling equipment shall have all tools, supplies, and spare parts necessary in sufficient quantities to achieve drilling to the specified depths and avoid unnecessary delays. All drilling equipment and methods shall provide optimum core and sample recovery for all materials and comply with all applicable State and Federal Regulations.

The ODOT/PSU/OSU representatives shall have the authority to suspend work and require the replacement of, or additional, drilling equipment at the Contractor’s expense if the Contractor cannot attain the specified or directed depth, undergoes unnecessary delays brought about by equipment shortages or inadequacies, or if the sample or core recovery is not acceptable. Section 5.10 (Standby) shall not be invoked during suspension periods.

2.7 Drilling Machines: Drilling machines shall be equipped with a hydraulic feed head and an automatic-trip hammer for performing SPTs. Rope and cathead shall not be used by the Contractor for performing SPTs. All drill bits shall be appropriate for the materials to be drilled. The drilling machine shall be capable of drilling with a mud rotary system to the required depths. The drilling machine shall be capable of retrieving soil samples to the required depths.

2.8 Drill Fluids: Contractor shall provide all necessary drilling fluids. The contractor shall prevent drill fluids and cuttings from directly entering any waterway, storm drain or sewer at any time during drilling operations. Discharge of drill fluids or cuttings directly into State waters in any form is strictly forbidden. When drilling on paved areas, drill fluids shall be collected at the borehole collar and contained for recirculation or disposal. Upon completion of the boring, the contractor shall collect, transport and dispose of used drill fluids. Time, labor, and equipment necessary to supply and dispose of the drill fluids shall be considered incidental to drilling. When drilling in unpaved areas, drill fluids shall be handled in accordance with Section 3.0 (Environmental Protection) below. Placement of used drill fluids on ODOT or Klamath County right-of-way is prohibited. Waste handling shall be in accordance with Section 2.9 (Investigation Derived Waste) and Section 3.0 (Environmental Protection) below.

Drilling additives approved for use in water well drilling are preferred. In all cases when using drill additives, use those additives that are non-toxic and proven safe to the environment. The Contractor shall have on site material safety data sheets (MSDS) for all drilling fluid additives.

2.9 Investigation Derived Waste (IDW): The contractor shall collect and dispose of all uncontaminated drill fluids. Drill cuttings must be collected and disposed of by the Contractor. All labor, materials, and equipment necessary to handle and dispose of uncontaminated drill cuttings and fluids is considered incidental to drilling. Collection and disposal of single-use PPE (gloves, earplugs, etc.) shall be the responsibility of the Contractor.

Contaminated soil is not anticipated. If contaminated soil is encountered, cuttings/fluids shall be segregated from uncontaminated cuttings whenever possible. The ODOT/PSU/OSU representatives shall determine when contaminated cuttings are present and shall direct the contractor when to place the cuttings in contractor-supplied drums. Each drum shall be labeled with the boring number, drilled interval, and date. The contractor shall transport the filled drums to a nearby ODOT facility, placing the drums as directed by the ODOT Project Manager/Project Geotechnical Engineer. Labor and equipment, other than drums, necessary to transport contaminated cuttings/fluids is considered incidental to drilling.

2.10 Days and Hours of Operation: All drilling and sampling operations shall be limited to daylight hours. Work hour restrictions may be in place for on-road holes if traffic volumes or local conditions during daylight hours dictate. Also, work shall not be conducted on state holidays.

2.11 Water and Water Delivery: The Drill Contractor shall provide water sources for this project along with the equipment necessary for proper and efficient delivery and storage of water for the drilling activities. A sufficient size and length water delivery pipe/hose/pumps shall be provided by the Drill Contractor to adequately provide water to the drill rigs.

2.12 Sampling: Every precaution shall be taken to avoid damage to samples. Split spoon and thin-walled undisturbed (Shelby Tube) samples shall be delivered in satisfactory fashion to the ODOT/PSU/OSU representatives on the project. Immediately after retrieval, the samples are to be capped, taped, and given with top and bottom indicated to the ODOT/PSU/OSU representatives. SPT shoes shall be replaced when worn or damaged or when directed by the ODOT/PSU/OSU representative.

2.13 Vane Shear Testing: Vane shear tests will be performed after every other Shelby tube sample in the diatomaceous deposits or at the discretion of ODOT/PSU/OSU personnel. Each test shall consist of measurement of system friction, measurement of maximum torque at the standard rotation speed, and measurement of residual torque. Maximum torque measurement will begin no more than five minutes after blade insertion and residual torque will be measured no more than one minute after the maximum torque is determined. After the vane is extracted, split spoon samples will be obtained from within the shear zone. The Drilling Contractor shall communicate the system friction, maximum torque, and residual torque for each test to ODOT/ PSU/OSU personnel on site.

2.14 Erosion and Sediment Control: It shall be the Contractor’s responsibility to control any occurrence of erosion or sediment laden fluids created as a result of the drilling operation. Any erosional material or sediment laden drill fluids created as a result of the drilling operation will not be allowed to run off site into any roadside ditch or any waterway without proper treatment to remove sediments. Where required, all auger spoils shall be collected, transported off site, and disposed of by the contractor. Where required, all drilling fluids shall be recirculated and not allowed to pool on paved or graveled surface or run off site into any storm water system or roadway and when core drilling is completed or used drill fluid is replaced with new fluid, used drill fluid shall be contained, transported off site, and disposed of by the contractor. All erosion control and sediment removal measures taken shall be approved by the ODOT/PSU/OSU representatives and shall be incidental to the drilling operation. Contractor shall seed and mulch drill sites, access roads and other disturbed areas as directed by the ODOT/PSU/OSU representatives.

2.15 Hazardous Materials: The Contractor shall notify the ODOT/PSU/OSU representatives of any hazardous materials to be used on the job and shall have material safety data sheets (MSDS) for those materials available on site.

3.0 ENVIRONMENTAL PROTECTION MINIMUM REQUIRED MEASURES

3.1 General:

3.1.1 Do not discharge contaminated or sediment-laden water directly into any waters of the State until it has been satisfactorily treated (e.g., by bioswale, filter, settlement pond, pumping to a vegetated upland location, bio-bag, dirt-bag or collected and transported to an approved off-site location).

3.1.2 The ODOT/PSU/OSU representatives retain the authority to temporarily halt or modify the Project in case of excessive turbidity or damage to natural resources.

3.1.3 Maintain hazardous material spill containment booms and absorbent materials on‑site to facilitate the cleanup of hazardous material spills. Install hazardous material spill containment booms or absorbent materials in instances where there is a potential for release of petroleum or other toxicants.

3.1.4 Do not place any material or waste on any public or private wetland, or in and adjacent to any waterway.

3.1.5 If flooding of the project site is expected to occur within 24 hours, evacuate areas used for staging, access roads, or storage and remove materials, equipment, and fuel.

3.2 Pollution Control Plan: The Contractor shall comply with Oregon State Spill Laws contained in OAR 340, Division 108 and OAR-108.010 and with Federal Laws found in 40 CFR Part 302-Table 302.4.

3.2.1 Prior to the commencement of the drilling the Contractor shall provide the ODOT/PSU/OSU representatives with a Pollution Control Plan that, at minimum states what action the Contractor shall take to prevent, contain or clean up a release of petroleum products or any hazardous material.

3.2.2 The Contractor shall have on site (and provide ODOT/PSU/OSU with a materials list) absorbent material or a Spill Control Kit capable of containing or cleaning up a release of product from the largest tank or reservoir at the project site, a spill containment and control plan with notification procedures, specific cleanup and disposal instructions for different products. A description of quick response containment and cleanup supplies shall be available on the site, including a supply of sediment control materials (e.g., a silt fence, straw bales, an oil-absorbing, floating boom whenever surface water is present) and the proposed methods for disposal of spilled materials. Contractor personnel shall be trained in the use and application of absorbent materials.

3.2.3 The Contractor shall immediately clean up all spills and notify ODOT/PSU/OSU representatives.

3.3 Additional Requirements:

3.3.1 The ODOT/PSU/OSU representatives retain the authority to temporarily halt the project activities in case of non-compliance by the Contractor with any of the listed Environmental Protection Requirements above.

4.0 MATERIALS

4.1 Materials Supplied By ODOT/PSU/OSU: ODOT/OSU/PSU will supply sample jars and boxes for collection of grab samples from split spoons. ODOT/OSU/PSU will also supply carrying frames to allow for Shelby tube samples to be transported vertically.

4.2 Materials Supplied By The Contractor: The Contractor shall supply all equipment and necessary supplies needed to complete the drilling, vane shear tests, repair any property damage, backfilling of holes and disposal of auger spoils, drill fluids, and cuttings. The contractor shall supply all core boxes, core blocks, Shelby tubes, wax, Osterberg/piston tubes, and SPT sample sleeves. The Drilling Contractor shall also provide the form to be used and filled out for the completion of daily safety tailgate meetings.

5.0 MEASUREMENT AND PAYMENT (see Attachment A for Bid Sheet)

5.1 Administration: This item shall be considered payment in lump sum for all materials, equipment, labor, mileage and incidentals related to the administration of this contract. This includes but is not limited to, production and submittal of the Pollution Control Plan, production and submittal of all geotechnical hole reports. Payment is included in the Administration Bid Item. Payment for this item shall not be issued until the ODOT/PSU/OSU project personnel have received a copy of all Oregon Water Resource Department (OWRD) geotechnical hole reports indicating they have filled out using the assigned ODOT/PSU/OSU boring number, signed by the driller, and submitted to OWRD. Payment shall be lump sum.

5.2 Mobilization: This item shall be considered payment in lump sum for all materials, equipment, labor, mileage and incidentals necessary to mobilize and demobilize all equipment and supplies to and from and within each of the project sites. This item includes payment for any and all special equipment and labor necessary to accomplish the job (i.e. platforms, vehicles, cats, winches, cranes, helicopters, etc.). This item includes time required to setup the drill, pumps and water system. This item also includes any safety related items such as hand rails and fall protection rails. Payment shall be per each mobilization, with only one mobilization allowed for the project.

5.3 Mud Rotary Drilling: This item shall be considered payment by foot for all materials, equipment, labor, and incidentals necessary to prepare the site, advance the exploration borings to the depths required with mud rotary techniques, and dispose of all spoils, drill fluids, and cuttings. The Contractor shall employ a mud rotary bit of sufficient diameter so as to allow for split spoon and Shelby tube sampling through the drill rod as required and accepted by the ODOT/PSU/OSU representatives to advance the holes to the desired depth. Drilling measurements and payment shall be based on the nearest lineal foot.

5.4 Standard Penetration Tests (2”): This item shall be considered payment by each for all labor, materials, equipment and incidentals necessary to perform these tests. Payment shall be per test.

5.5 Shelby Tube Samples (3”) with Piston Sampler: This item shall be considered payment by each for all labor, equipment and incidentals necessary to obtain these samples with a piston sampler. Payment shall be per test that has a sample recovery sufficient for lab analysis. ODOT/PSU/OSU personnel will provide the 3” Shelby tube thin-walled samplers. The Shelby tubes will have standard connections for the piston sampler or sampler head; the tubes will be 3’ length and stainless steel.

5.6 Vane Shear Testing: This item shall be considered payment by each for all materials, equipment, labor, and incidentals necessary to perform vane shear testing. Payment for this item will be per test.

5.7 Drums (55-gal., non-contaminated): This item will be considered payment by each for all labor, materials, equipment and incidentals necessary to transport and dispose of barrels containing non-contaminated drill cuttings. Payment for this item will be per drum.

5.8 Drums (55-gal., contaminated): This item will be considered payment by each for all labor, materials, equipment and incidentals necessary to transport labeled and secured barrels containing contaminated drill cuttings to the nearest ODOT Maintenance Yard. Payment for this item will be per drum.

5.9 Geotechnical Hole Reports: This item shall be considered payment by each for all materials, equipment, labor, mileage and incidentals necessary to complete Geotechnical Hole Reports. The Contractor will complete all Geotechnical Hole Reports in accordance with OWRD rules and regulations, with a copy sent to ODOT/PSU/OSU within 30 days of the completion of drilling. Payment will not be authorized to the contractor until copies of all required OWRD paperwork has been received by ODOT/PSU/OSU. Payment shall be per each Geotechnical Hole Report.

5.10 Standby Time: Standby time shall be paid at an hourly rate to the nearest quarter of an hour with the maximum not to exceed eight hours or the balance of an eight-hour shift not worked due to ODOT/PSU/OSU induced standby, whichever is less in a calendar day or work shift if working nights. Standby shall include all time during which the Contractor is unable to perform drilling work because of a directive from the ODOT/PSU/OSU representative, which is not related to the Contractor’s performance or lack of adherence to this contract. The ODOT/PSU/OSU representative shall order standby at the offered rate if conditions warrant. Standby shall include delays of work due to adverse weather conditions only if directed by the ODOT/PSU/OSU representative. Standby shall not be paid for delays of work resulting from the Contractor’s equipment failure, safety issues, while moving between drill sites or actions of others coordinated through the contractor. Standby shall be paid for the daily required safety tailgate meetings. The amount of standby for any and all shifts shall be documented on a per shift basis to the nearest quarter of an hour by both the ODOT/PSU/OSU representatives and the Contractor’s on-site responsible supervisor. Such records shall be submitted with invoices.