D01.09_PWS_Natomas_Basin_EFG.doc

Contract Number Task Order (if necessary)

PERFORMANCE WORK STATEMENT

PERFORMANCE WORK STATEMENT

29 AUGUST 2016

PROJECT: Geotechnical Exploration Using Cone Penetration Testing and Drilling – Natomas Basin Levee Reaches E, F & G, Sacramento and Sutter Counties, California.

1. CONTACTS:

Contractors:

TBD

Government John Kemp

COR:

U.S. Army Corps of Engineers

Attention: CESPK-ED-GG (J. Kemp)

1325 “J” Street, Sacramento, CA 95814

Ph: 916-557-6642

Email: john.e.kemp@usace.army.mil Technical POC:

Verne Brown

Attention: CESPK-ED-GG (V. Brown)

1325 “J” Street, Sacramento, CA 95814

Ph: 916-557-7339

Email: verne.w.brown@usace.army.mil Contract Specialist:

Tilden Brooks Jr.

ATTN: CESPK-CT-B (TBD)

1325 J Street, Sacramento, CA 95814-2922

Ph: 916-557-7929, Fax: 916-557-7524

Email:

tillden.l.brooks@usace.army.mil

2. GENERAL: The purpose of the work specified herein is to determine the type, nature, and characteristics of various subsurface soils and the areal extent, depth, and conditions of these soils as they exist at the locations specified in the Natomas Basin Levees embankments and foundations. The work includes exploration using cone penetration testing (CPT) and hollow stem auger drilling.

Work to be accomplished is as follows:

· Drill 37 borings utilizing hollow-stem auger or mud rotary drilling methods using either a balloon tire, rubber tire or track mounted drill rig, capable of conducting Standard Penetration Test Split Spoon (SPT) sampling to a depth 80 feet. This work is to be conducted at the locations presented in Appendix A.

· Execute 47 cone penetration tests (CPTs) using standard CPT equipment as described in ASTM D-5778 12

· Provide CPT reports in electronic format that can be converted to gINT.

· Provide cultural resource monitor(s) during hollow stem auger activities for the first 15 feet of foundation materials augered at each drilling location. A cultural resource monitor will also be required for CPT activities but only at the toe of the levee and only during setup of the CPT rig.

· Provide traffic control for all exploration activities on the levee crown The attached Table 1 summarizes the depths of each of the identified CPTs and auger borings.

Access drilling locations from unpaved roads on rural land and/or paved levee roads.

21 hollow stem auger borings are to be accomplished at the toe of the levee or as near as practicable based on canal limitations and rights of entry or in open fields.

16 hollow stem auger borings are to be accomplished at the crown of the levee and shall include traffic control measures during all operations.

46 CPTs are to be accomplished at the toe of the levee or as near as practicable based on canal limitations and rights of entry or in open fields.

1 CPT is to be accomplished at the crown of the levee.

The hollow stem auger (HSA) boring depths will be variable from 60 to 80-feet below ground surface (bgs) depending on whether the exploration is accomplished on the toe or crown of the levee.

The CPT depths will be variable from 60 to 80-feet bgs depending on whether the exploration is accomplished on the toe or crown of the levee.

During hollow stem auger drilling the Contractor is required to have available on site two each of:

· Standard penetration test (SPT) sampler (1.375-inch ID/2-inch OD)

· Intermediate split-spoon sampler (2-inch I.D. / 2.5-inch O.D.)

· Large split-spoon sampler (2.5-inch ID/3-inch OD) The Contractor is also required to have available on site both the 18-inch and 24-inch spoon lengths for split-spoon samplers with waste barrels.

The Contractor shall also be prepared to conduct undisturbed soil sample collection by means of thin walled sampler using any of various means of sample retrieval. This shall include, but not be limited to Open Drive (e.g. Shelby tube) sampling, Piston Drive (e.g. Osterberg) sampling, retracted inner barrel sampling, protruding inner barrel (e.g. Denison) sampling, or retracting inner barrel (e.g. Pitcher) sampling. In particular, the Contractor shall be prepared to switch to different sampling methods should one method prove ineffective based on initial borings performed.

Generally, soil sampling will be conducted at 2-foot intervals from the ground surface to approximately 60-feet bgs or 60-feet below the embankment (typically 20-ft tall for a total depth of 80 ft). Table 1 presents a summary of the depths, boring locations and designations. Clay, sand, silt, and gravel are the subsurface materials expected to be encountered at the drilling locations. The Contractor shall be prepared to use non-beneficiated mud as a drilling fluid only after encountering groundwater and only after measuring depth to groundwater. The drilling fluid shall be a biodegradable drilling fluid (e.g. EZ-MUD, etc.) that degrades to a liquid within a specified time period. All drilling utilizing drill fluids shall be subject to the requirements of ER 1110-1-1807, Drilling in Embankment Dams and Levees. The Contractor shall utilize a portable mud tank onsite to perform mud rotary drilling when conditions dictate such as due to potential for sand heave. Use of bottom-discharge bits is prohibited.

2.1 ACCIDENT PREVENTION PLAN (APP) / ACTIVITY HAZARD ANALYSIS (AHA) FOR GEOTECH: The Contractor shall use a qualified Safety and Health Manager (SHM) to prepare the written site-specific APP/AHA in accordance with the format and requirements of USACE EM 385-1-1 and 8 CCR Section 3203 & 1509. Cover all paragraph and subparagraph elements in Appendix A of USACE EM 385-1-1 "Minimum Basic Outline for Preparation of Accident Prevention Plan" and 8 CCR Section 3203 and 8 CCR Section 1509 "Injury and Illness Prevention Program".

The contractor shall develop an Activity Hazards Analysis (AHA) for every operation involving site activities presenting hazards not experienced in previous project operations or where a new work crew or subcontractor shall perform work. The AHA(s) format shall be in accordance with Figure 1-2 of EM 385-1-1. Subsequent AHAs shall be submitted as amendments to the APP/IIPP. The analysis shall identify and evaluate hazards and outline the proposed methods and techniques for the safe completion of each phase of work. At a minimum, the document shall define the activity being performed, sequence of work, specific safety and health hazards anticipated, control measures (to include personal protective equipment) to eliminate or reduce each hazard to acceptable levels, equipment to be used, inspection requirements, training requirements for all involved, and the competent person in charge of that phase of work

The APP/AHA shall include an Injury and Illness Prevention Program (IIPP) appendix. Where a paragraph or subparagraph element is not applicable to the work to be performed, indicate "Not Applicable" next to the heading. The APP/IIPP shall be job-specific and address any unusual or unique aspects of the project or activity for which it is written. The APP/IIPP shall interface with the Contractor's overall safety and health program (SHP). Any portions of the Contractor's overall safety and health program referenced in the APP/IIPP shall be included in the applicable APP/IIPP element and made site-specific. The Government considers the Prime Contractor to be the "controlling authority" for all work site safety and health of the subcontractors. Contractors are responsible for informing their subcontractors of the safety provisions under the terms of the contract and the penalties for noncompliance, coordinating the work to prevent one craft from interfering with or creating hazardous working conditions for other crafts, and inspecting subcontractor operations to ensure that accident prevention responsibilities are being carried out. The Contractor, SHM, on-site Project Supervisor, and Site Safety and Health Officer (SSHO) shall sign the APP/IIPP.

2.1.1.

References: The contractor’s APP/IIPP, SSHP Appendix and subsequent activities must comply with the following referenced documents, at a minimum:

ASTM D1452-09, Standard Practice for Soil Exploration and Sampling by auger Borings.

Title 29 Code of Federal Regulations (CFR) 1910, Occupational Safety and Health Standards.

29 CFR 1926, Safety and Health Regulations for Construction.

U.S. Army Corps of Engineers (USACE), Drilling in Embankment Dams and Levees, ER 1110-1-1807 (31 December 2014).

U.S. Army Corps of Engineers (USACE), Safety and Health Requirements Manual, EM 385-1-1 (30 November 2014).

Title 8 California Code of Regulations (CCR) Chapter 4 Subchapter 4, Construction Safety Orders.

8 CCR Chapter 4 Subchapter 7, General Industry Safety Orders.

8 CCR Sections 3203 & 1509, Injury and Illness Prevention Program.

American Conference of Governmental Industrial Hygienists (ACGIH®), TLVs® and BELs®, Threshold Limit Values for Chemical Substances and Physical Agents & Biological Exposure Indices (2005)

Other OSHA ancillary safety and health regulations governing certain aspects for this contract include, but not limited to:

Respiratory Protection (29 CFR 1910.134/8 CCR Section 5144)

Occupational Noise Exposure (29 CFR 1910.95/8 CCR Sections 5095-5100)

Hazard Communication (29 CFR 1910.1200/29 CFR 1926.59/8 CCR Section

5194)

The Control of Hazardous Energy (Lockout/Tagout) (29 CFR 1910.147)

Proposition 65 (22 CCR Section 12000) Chemicals Know to the State to Cause Cancer or Reproductive Toxicity

2.2 PERMITS: The Contractor shall be responsible for acquiring all permits for the number of borings anticipated. Maps have been provided in Appendix A to help facilitate the permitting process. Permits shall be acquired within 60 days from date of award and shall be kept “open” until completion of the field work. Permits shall include those acquired for drilling and CPT on the roads. The project is located with TWO distinct counties (Sacramento and Sutter) and will therefore be required to complete permits and arrange for grout inspections with TWO jurisdictions.

3.

Insurance: The Contractor/Subcontractor(s) shall, provide and maintain, during the entire performance period of this contract, the kinds and minimum amounts of insurance as required by California State Law, and as follows:

The contract clause, FAR 52.228-5, applies to this contract even if the work or any portion of the work is not performed on a government installation. In accordance with FAR 52.228-5 and FAR 28.307-2, the Contractor shall procure and thereafter maintain during the entire period of this performance under this contract the following minimum insurance:

TYPE

AMOUNT

Workers Compensation comply with Federal & State worker’s comp and occupational disease statutes Employer’s Liability Employer’s Liability of at least $100,000 General Liability Bodily injury liability of at least $500,000 (Comprehensive) per occurrence Automobile Liability At least $200,000 per person and $500,000 (Comprehensive) per occurrence Bodily Injury & Property Damage

Longshoreman’s and Harbor Worker’s Compensation Coverage complying with applicable (when applicable by location of contract performance) Federal statute (33 USC 901 et seq.).

4.

LOCATION: The supplied map in Appendix A shows the drilling and CPT locations for the Natomas Basin Project area Reaches E, F & G, Sacramento & Sutter Counties, California.

5.

WORK TASKS/DELIVERABLES

TASK 1

ACCIDENT PREVENTION PLAN (APP) / ACTIVITY HAZARD ANALYSIS (AHA) / INJURY AND ILLNESS PREVENTION PLAN FOR GEOTECH: Refer to section 2.1 for specifics. The contractor shall provide documents for review by the USACE Safety Office before the start of work. This line item shall include the preparation, revision, and discussion with the USACE Safety Office. Plans shall be submitted to USACE within 5 days of date of award. The contractor shall make any requested changes within 3 days of request.

TASK 2

MOBILIZATION AND DEMOBILIZATION: Mobilization and Demobilization shall include the delivery, set up and removal of all equipment and supplies for ONE rubber tire or track mounted drill rig, ONE CPT rig, and all support equipment to be furnished by the Contractor (in satisfactory working order) AND overnight accommodations for all crews. After completion of all work, the Contractor shall restore the work sites as nearly as possible to the original condition. Cost included in this bid item shall contain all incidental costs associated with this scope of work. Mobilization and demobilization includes but is not limited to delivery and removal of equipment to a work site, daily travel to a work site, and bridge or toll fees. The mobilization of a drill rig includes the first set up. Costs shall contain all incidental costs associated with this statement of work. Overnight Storage of Drill Rigs and Equipment is the responsibility of the drilling Contractor for the duration of this project. Vandalism and theft are known problems in this region of Sacramento and Sutter Counties and drill rigs for Contracts have been damaged and property stolen. Therefore the Contractor is warned that security measures should be undertaken for all equipment and supplies during overnight storage.

TASK 3a UTILITY CLEARANCE AND DIG ALERT NOTIFICATION: The Contractor shall comply with Requirements to notify Dig Alert as well as employ the services of a private utility clearance subcontractor to clear each exploration location.

The Contractor shall mark each boring location in the field with white-painted stakes and white flagging tape. The Contractor shall notify the Contracting Officer and Geology Section Technical Lead 10 days in advance of marking the site in order to facilitate a meeting in the field between the Contractor and the Government to identify final boring and CPT locations for the project. The field meeting time frame will extend as many days as is necessary to locate all of the exploration sites. After completion of the field meeting, the Contractor shall be responsible for notifying Dig Alert (Northern California) of the intent to perform vertical drilling and the time frames for the explorations. The Contractor shall plan notification to be compliant with the 21 day expiration period for any Dig Alert ticket established and will either establish a new ticket or request an extension of the existing ticket.

The Contractor shall supply the services of a private utility clearance company because many of the drilling sites are located on private property and Dig Alert is limited in scope to facilitating the clearance of utilities in public rights of way. The subcontractor shall have the capability to apply a signal to known electrical, communications, water and sewer conduits and use instrumentation to detect those signals. If the water service conduits (e.g. sewer and water) are not metallic, the subcontractor shall have the capability to apply a signal to the liquid within the pipes/conduits and acquire the signal with instrumentation or run signal-emitting hardware into the service conduits and apply a signal from the hardware and then acquire the signal with instrumentation. GPR methods may also be utilized to clear boring and CPT locations. Reliance upon maps to locate utilities shall not be acceptable. Clearance activities on the levee crown shall also include clearing the land and water side toes of the levee in order to acquire utilities that may extend below the embankment and occur below the exploration location selected for the crown.

The Contractor may opt to have the private utility clearance subcontractor join the Contractor and Government representative during the field meeting for identification of exploration locations in order to facilitate location and clearance of locations independent of utility companies. Regardless of timing of utility clearance, the exploration locations shall each be cleared for exploration before commencement of intrusive work.

TASK 3b DRILLING– HOLLOW STEM AUGER DRILLING METHOD TO INCLUDE SAMPLING: The Contractor shall use one hollow-stem auger rotary type, truck-mounted, balloon tire, or track-mounted drill rig, fully maintained and in good working condition with all safety equipment, complete with competent and qualified operating personnel with all the necessary accessories and supplemental equipment capable of drilling, sampling and conducting ASTM D1586 Standard Penetration Tests (SPTs) to a maximum depth of 80 feet. The Contractor shall have a portable mud tank of at least 175-gallon capacity for performing mud rotary drilling. Mud pits shall not be excavated into the ground.

The drilling contractor shall be required to use a 140-lb. hammer with 30 inches of freefall using an automatic drive system provided for each rig. A down-the-hole hammer system shall not be acceptable.

Drilling shall be conducted per ASTM D 1452. The Contractor shall be prepared to utilize non-beneficiated mud as drilling fluid should conditions warrant it (e.g. heaving sand). All drilling utilizing drill fluids shall be subject to the requirements of ER 1110-1-1807, Drilling in Embankment Dams and Levees.

The Contractor shall provide the following soil sampling equipment: (a) three standard split‑spoon penetrometers (2‑inch‑O.D. by 1‑3/8‑inch‑I.D. by 18- or 24‑inch length); (b) three (3) 2-1/2 inch O.D. by 2-inch I.D. by 18-inch length split spoon samplers; (c) three (3) 2-1/2 inch O.D. by 2-inch I.D. by 24-inch length split spoon samplers; (d) three (3) 3-inch-O.D. by 2.5-inch-I.D. by 18-inch length split spoon samplers; and (e) three (3) 3-inch-O.D. by 2.5-inch-I.D. by 24-inch length split spoon samplers. The Contractor shall have available for use each day a minimum of ten (10) retainer baskets (sand catchers) and a minimum of two (2) extra shoes in good condition for each of the three varieties of samplers.

A 140-lb. hammer with 30 inches of freefall utilizing an automatic-trip hammer to drive the samplers into the soil shall be used. The hammer system shall be configured such that the energy of each hammer blow is delivered vertically. The automatic-trip hammer shall apply blows at a rate of 20 to 40 blows/minute. The Contractor shall have the efficiency of the hammer tested on-site at the beginning of work for all drill rigs to be used for soil sample collection and automatic-trip hammer systems used, unless the Contractor can provide certification that the hammer energy has been calibrated within 6 months from the date of bid.

Drilling shall be conducted per ASTM D1452-09. The total depth of the borings shall be measured from existing ground surface.

The Contractor shall not be required to log soil. The Government shall provide a Geologist, Civil Engineer, or Engineering Technician to log the borings. Upon completion of drilling, the Contractor shall be required to grout each boring with a neat-cement grout to the ground surface or one foot below the ground surface, with the remaining foot backfilled with cuttings. A County representative shall be notified by the Contractor one-half day before the Contractor anticipates backfilling each boring or as stipulated by the permitting agency. Drill cuttings, excess drilling fluid, or excess grout from each boring shall be placed in portable metal bins or equivalent and transported offsite for disposal by the Contractor. Prior to demobilization, the Contractor shall return all sites as near as possible to the original condition.

Site access for drilling is provided by paved levee roads.

The boring depths will range around 80 feet below ground surface (bgs) for the levee crown explorations, and up to 60 feet bgs for the levee toe exploration work (Table 1). The depths of the borings may be adjusted in the field depending on the findings. Total drilling footage is not expected to exceed 2440 feet for the hollow stem auger drilling.

The drill rig and drill crew shall also be equipped to perform undisturbed soil sample collection by means of thin walled sampler using any of various means of sample retrieval. This shall include, but not be limited to Open Drive (e.g. Shelby tube) sampling, Piston Drive (e.g. Osterberg) sampling, retracted inner barrel sampling, protruding inner barrel (e.g. Denison) sampling, or retracting inner barrel (e.g. Pitcher) sampling. In particular, the Contractor shall be prepared to switch to different sampling methods should one method prove ineffective based on initial borings performed. Any switch from one method to another shall be made after consulting the government representative on site. The Contractor shall provide adequate supplies of initial sampling equipment as well as back-up sampling equipment in the event that a switch in methodology is necessitated by field conditions.

Tube dimensions quantities are described below under Task 3f SPECIAL CONDITONS: SAMPLE PRESERVATION SUPPLIES.

The drill rig, and support equipment shall be fully maintained and in good condition. The Contractor is responsible for maintaining the drilling equipment. Any down time associated with the maintenance or repair of any piece of equipment will be solely at the Contractor’s expense. The Contractor is also solely responsible for security against theft, destruction, and/or vandalism of the Contractor's property and/or equipment. The drill rig shall be operated by competent and qualified personnel. The driller and at least one helper shall have the appropriate, current license(s) to operate the equipment required for this type of work.

NOTE: The use of open hooks are prohibited in rigging used to the hoist load, EM 385-1-1, Safety and Health Requirements Manual, dated November 2014, Section 15 Rigging, paragraph 15.E.07.d.

Drilling shall include all labor, material and equipment to move the drill rig and all supporting equipment from one drill site to another. Cost shall include all incidental costs associated with cleanup of each site. Site locations are presented in Appendix A.

TASK 3c Cone Penetration Testing - CPT: The Contractor shall use one CPT exploration rig, fully maintained and in good working condition with all safety equipment, complete with competent and qualified operating personnel with all the necessary accessories and supplemental equipment capable of penetrating to a maximum depth of 80 feet. The total depth of the borings shall be measured from existing ground surface.

The Contractor shall be required to produce CPT logs in native file format and in PDF format. The Government shall provide a Geologist, Civil Engineer, or Engineering Technician to observe contractor activities and provide input toward interpretation of CPT logs as they relate to existing soil data acquired from drilling and sampling activities.

Upon completion of drilling, the Contractor shall be required to grout each boring with a neat-cement grout to the ground surface. A County representative shall be notified by the Contractor one-half day before the Contractor anticipates backfilling each boring or as stipulated by the permitting agency. Excess grout from each boring shall be placed in portable metal bins or equivalent and transported offsite for disposal by the Contractor. Prior to demobilization, the Contractor shall return all sites as near as possible to their original condition.

Site access for CPT activities is provided by paved levee roads, dirt and/or gravel roads.

The locations of the CPT explorations are on the levee crown (one) and either toe or open field (forty six). All boring depths for CPT exploration at the levee toe or open fields are anticipated to be 60 feet below ground surface (bgs). The depths of the borings may be adjusted in the field depending on the findings. Total drilling footage is not expected to exceed 60 feet at each location except for a single CPT location on the levee crown which shall be 80 feet.

All CPT rig and support equipment shall be fully maintained and in good condition. The Contractor is responsible for maintaining the CPT equipment. Any down time associated with the maintenance or repair of any piece of equipment will be solely at the Contractor’s expense. The CPT rig shall be operated by competent and qualified personnel. The exploration crew shall have the appropriate, current license(s) to operate the equipment required for this type of work.

NOTE: The use of open hooks are prohibited in rigging used to the hoist load, EM 385-1-1, Safety and Health Requirements Manual, dated 3 November 2003, Section 15 Rigging, paragraph 15.E.07.d.

CPT exploration shall include all labor, material and equipment to move the CPT rig and all supporting equipment from one exploration site to another. Cost shall include all incidental costs associated with cleanup of each site. Site locations are presented in Appendix A.

TASK 3d DRILL RIG STANDBY TIME HOURS – HOLLOW STEM AUGER DRILLING METHOD: Standby time shall be any time that drilling operations are delayed for the convenience of the Government at the request of the Government Representative. It shall not to be used for Contractor-caused delays or delays due to inadequate personnel, equipment malfunctions, or adverse weather conditions. Contractor should plan for 18.5 hours total of standby time (½-hour per hole) maximum.

TASK 3e AUTOMATIC HAMMER ENERGY TESTS - 1 TOTAL (per drill rig basis) The Contractor shall perform the necessary task to certify that the hammer efficiency for each drill rig utilized meets acceptable standards. If a new drill rig is brought to the job site, then a new test must be conducted prior to commencement of drilling and sampling activities. Testing shall occur once at the beginning of the period of use for the drill rig to be used.

Alternatively, the contractor may present the USACE with the results of an auto-hammer test conducted within the last 6 months for the hammer being used on the Project site. If this alternative is elected, the contractor must provide the results WITH the response to this solicitation and bid submittal.

TASK 3f:

SPECIAL CONDITONS: SAMPLE PRESERVATION SUPPLIES:

BRASS or STAINLESS SLEEVES & CAPS

Contractor shall bring sleeves suitable for use in the 3-inch O.D. split spoon samplers. Boxes shall consist of 50 sleeves per box and shall be new. This shall also include plastic caps to cover each variety of sleeve in like quantities (e.g. two caps per sleeve). Based on a quantity of 37 borings and an estimated 20 sleeves required per boring, the Contractor shall supply up to 15 boxes.

SHELBY TUBES OF 3-INCH DIAMETER BY 2.5 FOOT LONG THIN-WALLED SAMPLERS

Contractor shall bring 54 thin walled samplers suitable for use with the drilling rig by means of “push” or “piston” methods. Caps, beeswax and the means to melt it shall also be provided. Should the push or piston samplers prove ineffective due to hardness of the fine grained materials, the Contractor will be required to switch to rotary type sample methods (e.g. Denison or Pitcher) to acquire undisturbed soil samples. In this case, the Contractor shall supply all appropriate thin-walled samplers for the method that provides the most success.

TASK 3g GROUTING DRILL HOLES: Upon completion of drilling, each boring shall be grouted to prevent water from passing from one stratum to another through the borehole and/or to prevent piping to the surface. The bentonite-cement grout shall consist of 2 to 4% pure, non-beneficiated bentonite, with 7.5 to 9 gallons of water per 94-pound sack of cement. Grouting shall be accomplished by using a tremie or grout pipe. Grouting material shall be applied in one continuous operation, from the bottom of the interval to be sealed to the top. Gravity installation of the grout without the aid of a tremie or grout pipe shall not be used. No pre-mixed concrete or addition of aggregates to grout shall be allowed. Water used for sealing mixtures shall be clean and of potable quality.

Grout loss should be independently accounted for by the Contractor in the response to this solicitation. Costs are to include all materials AS WELL AS DRILL RIG GROUTING TIME AND LABOR needed to complete the grouting process, plus cleanup.

NOTE: No rig hours for drilling shall be payable during the grouting process. Hourly rates for drilling shall only apply to drilling time.

The Contractor shall containerize any additional cuttings or grout generated by the grouting operations as identified in the discussion of portable metal bins for soil disposal below. Holes should be grouted immediately upon completion of drilling of each boring; however, if it should be necessary to temporarily leave the hole open, it shall be required that the hole be covered with a steel drill hole cover and either a traffic cone or a barricade shall be placed over the open hole.

GROUT PREPARATION: Grout preparation shall be done thoroughly by mixing water, cement, and bentonite with a paddle-type mechanical mixer, high shear mixer, or recirculating through a pump to insure that the mixture is uniform and there are no lumps.

Costs are to include all materials and labor needed to complete the grouting process, plus cleanup. It is emphasized again that payment for drilling hours shall not include drill rig usage during the grouting phase. The Contractor shall be required to dispose of any excess grout off site.

TASK 3h PORTABLE METAL BINS FOR SOIL AND EXCESSS GROUT/DRILLING FLUID DISPOSAL: The Contractor will provide clean portable metal bins to contain soil cuttings and transport all containerized waste from each drill location daily for offsite disposal as directed by the Government Representative. The containerized waste shall include soil cuttings, excess drilling fluid, or excess grout and be placed in portable metal bins or equivalent to be supplied by the Contractor. The cost of the portable metals bins, the transportation, and any disposal fees shall be included in task. All containerized waste must be removed from the site prior to demobilization. It is expected that the Contractor will separate the drill fluid and grout (waste stream 1) from the soil cuttings (waste stream 2). Empty cement sacks, plastic bags, disposable gloves and outerwear, and other trash items shall be disposed daily as municipal waste and NOT DISPOSED with waste streams 1 and 2.

TASK 3i:

DRILLING PERMITS: Drilling permits are required for any work authorized by the Corps of Engineers that is within any of the counties where drilling will take place. In the past Counties have billed the drilling contractor a second time with the inspection costs after all drilling is complete. The price for the permits quoted by the Counties are typically solely for the initial permits and do not cover the hourly cost of inspection visits made by the agency representatives. The Contractor shall be responsible for all costs associated with permitting and grout inspections, including those fees outside of the standard permit fees. Permit applications will be necessary in both Sacramento and Sutter Counties.

TASK 4:

SPECIAL CONDITONS: CULTURAL RESOURCE MONITOR: All hollow stem auger borings to be completed shall be monitored during excavation by a qualified Cultural Resources Monitor (CRM) professional.

Qualifications

The CRM must meet the Secretary of the Interior’s Professional Qualifications Standards for Archeology as follows: A graduate degree in archeology, anthropology, or closely related field plus:

1. At least one year of full-time professional experience or equivalent specialized training in archeological research, administration or management;

2. At least four months of supervised field and analytic experience in general North American archeology, and

3. Demonstrated ability to carry research to completion.

The Contractor shall provide USACE for review and approval, the credentials of the CRM(s) that will conduct all work under this task. This information shall be provided in response to this solicitation.

Records and Literature Search

At the appropriate Information Center of the California Historical Resources Information System, the CRM shall perform a records and literature search of the locations of the geotechnical explorations, as well as a ¼ mile buffer around each location. The CRM shall investigate all relevant records and files at the Information Center and shall obtain full copies of all cultural resources sites, surveys, maps, and other relevant data conducted within this area and shall provide copies of the records and literature search to the USACE. The records and literature search shall be conducted prior to the pre-activity archeological survey.

Orientation

The CRM shall provide assistance to the biological resources monitor (if needed) for pre-work employee orientation.

Pre-Activity Survey

A pre-activity survey for sensitive cultural resources will be conducted prior to any ground disturbance activities. Any sensitive resources observed will be documented and clearly marked. Avoidance measures such as establishment of an exclusion zone around any sensitive resources will be taken. The pre-activity survey will be conducted no earlier than 7 days prior to the start of work, and no later than 5 days prior to the start of work.

Cultural Monitoring

During ground disturbing activities of the first 20 feet of previously undisturbed soil, a CRM will be on-site to observe work activities to ensure that sensitive resources are not impacted. The purpose of the CRM is to inspect soil and other material as work proceeds to make a determination if cultural resources are present. This may include buried resources as well as construction material, metal, debris and other landfill material. If potentially significant resources are discovered, the subsequent work shall be relocated in order to avoid damage. The CRM shall immediately notify the Sacramento District Historian [Melissa Montag (916) 557-7907] should any work produce cultural materials. A determination will then be made if and when work can proceed at that particular site.

A CRM would be needed for the first 20 feet of undisturbed soil. Levees are considered disturbed soil, so this would generally not include the levee itself, but would be the first 20 feet below the levee, if the boring or trench extends below that.

Daily Logs for Cultural Monitoring

The monitor will prepare for the Corps a daily log describing the activities and whether or not any significant cultural resources were located. The daily logs will be submitted to the Corps no later than 7 days after the completion of work.

TASK 5:

SPECIAL CONDITONS: TRAFFIC CONTROL ON LEVEE CROWN: The Contractor shall provide a traffic control plan as a separate stand-alone document for submittal to the local authorities prior to commencement of all auger drilling and CPT work. NOTE: This may require submittal to more than one agency as the levee crown work occurs in two counties. Traffic control shall be undertaken to be consistent with local regulations and requirements and shall be designed to provide safe clearance during drilling and CPT operations. This will likely include a lane closure at the drilling locations with one way traffic control and supporting personnel to assure that motorists comply with signage and restrictions. The Contractor shall also supply safety equipment which shall include but is not limited to approaching signage identifying lane closure and single-lane control in both directions, traffic barriers, and safety cones.

OPTIONAL TASK 6

MOBILIZATION AND DEMOBILIZATION (2 units): Based on access to drilling sites not located on the levee, there may be delays in accessing all drill and CPT sites identified in a single mobilization. Therefore this Optional Task will be exercised for Mobilization and Demobilization of CPT and HSA equipment in the event that the initial mobilization does not result in completion of all designated exploration locations during the initial mobilization. This optional task will include delivery and setup of HSA and CPT equipment and all support equipment, renewing or re-establishing Dig Alert ticket(s), resuming, renewing, or re-establishing permit conditions, mobilization of the cultural resources monitor, and mobilization of the traffic control team. His option shall not include execution of drilling, CPT, grouting, or other activities in the bid schedule that are on a per-hole or per foot basis. This option may be invoked up to two (2) times.

6. WORK SCHEDULE: A Government Representative shall arrange the exact time and place of equipment delivery at least 5 days prior to the site work start date. The project Work Schedule shall be determined by Government Representative in coordination with the Contractor. The work schedule shall not exceed 10 hours per day, Monday thru Friday, excluding Federal holidays. Overtime shall not be allowable without the written approval of the Contracting Officer prior to work in accordance with FAR 22.103.

7. PERIOD OF PERFORMANCE: Work shall begin within 30 calendar days of task order award and be complete not later than 360 days following approval of APP/IIPP by the USACE Sacramento District Safety Office.

8. DELIVERABLES: Copies of all CA Well Drillers Licenses, Hammer efficiency rating certification, the Accident Prevention Plan, and all necessary permits shall be turned in to the Government Representative within 5 business days of task order award or within 5 days of completion of the requisite activities. Copies of the disposal records/receipts shall be turned in to the Government COR not later than 5 business days after field work is complete. The CPT Report shall be turned in to the Government COR no later than 15 business days after completion of all CPT field work.

9.

Authorities/Technical Direction: The Contractor shall take no direction from any Government employee or any other person other than the Government Contracting Officer that changes the terms and conditions of this contract action, the statement, or any change that impacts the cost, price or schedule. Changes authorized by the Contracting Officer shall be in the form of a written, official, signed modification to the contract action received by the Contractor before the Contractor shall act upon those changes. The Contractor shall comply with the Changes clause of this contract when the contractor believes direction has been given from persons other than the Government Contracting Officer that equate to a change by notifying the Contractor Officer as directed by the clause. Any direction given by any Government employee or any other person outside their authority must be reported to the Contracting Officer. Contracting Officer Representatives (CORs) are limited to the authorities stated in the COR appointment letters. If a COR is appointed under this contract, they shall be appointed by written letter from the Contracting Officer to the Contractor and COR specific to this contract only. COR appointment letters from previous contracts are not valid for this contract.

Attachments Table 1 Appendix A - Figures

QASP

Technical Acceptance Criteria