Attachment_1_-_P1424R0022_Specifications.pdf

YELL GROUNDWATER MONITORING WELLS

Project Specifications

Monitoring Wells

Yellowstone National Park

DIVISION 1 - GENERAL REQUIREMENTS

01110 Summary of Work 01270 Definition of Bid Items 01310 Project Meetings 01320 Schedules and Monthly Inspections 01330 Submittals 01510 Temporary Services 01570 Temporary Controls 01770 Project Closeout

13200 Groundwater Monitoring Well

12/1/2023 01110-2

YELL GROUNDWATER MONITORING WELLS SUMMARY OF WORK

SECTION 01110

SUMMARY OF WORK

PART 1 GENERAL

1 .1 DESCRIPTION

A. The work of this contract consists of the installation of seven groundwater monitoring wells with the

Yellowstone National Park. Groundwater monitoring wells will be up to 50 feet deep with 2” PVC casing and screen. Construction shall be per drawing set 101-191536, these specifications, Wyoming Department of Environmental Quality well construction standards, and Wyoming State Engineer’s Office well construction standards.

1 .2 LOCATION

A. This project is located at the South Entrance, Tower Fall, Tower Junction, and Lamar Buffalo Ranch areas of Yellowstone National Park.

B. DIRECTIONS: See plan cover sheet for location map and site plans for GPS coordinates for each well. More information for accessing Yellowstone National Park can be found here:

https://www.nps.gov/yell/planyourvisit/directions.htm

1 .3 CONTRACTOR'S USE OF PREMISES

A. Contractor shall conduct operations in conformance with rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and regulations prescribed by the Superintendent.

B. General: Contractor shall have limited use of the sites for construction operations. Limit use of premises to areas within the Contract limits indicated on the drawings. Do not disturb portions of Project site beyond areas in which the Work is indicated. Construction limits are defined by the “Limit of Disturbance” boundary shown in the Construction Drawings. Confine storage of materials within the construction corridor and/or the designated staging area.

C. Coordinate with Contracting Officer (CO) and Park Staff to minimize disruption of normal Park activities. Inform construction workers and supervisors about the special sensitivity of Park values, regulations, and appropriate housekeeping.

D. Contractor shall at all times conduct operations to ensure the least inconvenience to the public.

E. Housing

1. The contractor shall be responsible for obtaining housing outside of the park. The use of campgrounds or another in-park commercial lodging is prohibited.

2. Construction Camp: Establishment of a camp within the park will not be permitted.

option to install an additional well. These wells are located at various locations throughout

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F. Preservation of Natural Features: Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

1. Provide temporary barriers to protect existing trees and plants and root zones.

2. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with Contracting Officer and remove agreed-on roots and branches that interfere with construction.

3. Do not fasten ropes, cables, or guys to existing trees.

Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

G. Existing Utilities: The Contractor shall contact the Contracting Officer,utility companies, and owners of other utilities, including the Government and Concessionaires, for location information before drilling begins.

1. The Contractor shall first contact One-call of Wyoming, then the Yellowstone Branch of Information Systems Management. The Contractor shall have the One-call of Wyoming ticket number ready to provide to the Yellowstone Branch of Information Systems.

2. Utility Contact List

a. One-call of Wyoming – 800.849.2476

b. Yellowstone Branch of Information Systems Management – 307.344.2470 or 307.344.2070

3. Contractor shall be responsible for locating and preventing damage to all utilities. If damage occurs, repair utility at no additional expense to the Government.

4. Interruption of Existing Utility Service: Temporary shutdowns shall not exceed 6 hours.

Schedule any utility interruptions, in writing, two weeks in advance, with park staff.

H. Travel & Hauling Restrictions

1. Steam-clean all construction vehicles and equipment, including the undercarriage, prior to entering the Park. Coordinate with park officials a minimum of 2 business days in advance to schedule equipment inspections by Park officials. Inspections are required prior to equipment entering the park and are generally available at park entrances, by appointment, Monday through Thursday. The Contractor is requested to group inspections together as much as possible.

2. Hauling Restrictions: Comply with all legal load restrictions in the hauling of materials.

Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Visitor Services Office (307.344.2107). A special permit will not relieve Contractor of liability for damage which may result from moving of equipment.

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3. Contractor will be required to submit a travel control plan and haul route.

I. Wildlife Safety: The Contractor shall adhere to the following conditions during work in the park:

1. The Contractor and all Contractor employees and families at the Park will be required to attend bear orientation sessions presented by the National Park Service.

2. To prevent unnatural attractants to bears, no food, garbage, drinks, trash, or food and drink containers shall be placed outside trailers, buildings, or vehicles, except during actual use.

Store lunch containers, coolers, and all food inside vehicles or job trailers.

3. All work site food and drink trash or garbage shall be placed in trash cans.

4. All trash cans that are not of bear-resistant design shall be located inside trailers or buildings.

5. Waste produced by the Contractor is the responsibility of the Contractor and may not be put in National Park Service containers.

6. Any mishandling of garbage, trash, foods, and other potential bear attractants described above will result in the responsible person or Contractor receiving a citation subject to a fine and/or court appearance before the U.S. Magistrate.

7. All barbecue units shall be stored in trailers and buildings and not outside when not in use.

8. Feeding of any wildlife is prohibited.

9. Bird feeders are prohibited.

10. Pets are prohibited.

11. All costs for bear management actions directly related to the mishandling of garbage, trash, foods, and other potential bear attractants described above shall be at no additional expense to the Government.

1 .4 UNEXPECTED ARCHAEOLOGICAL DISCOVERY PROCEDURE

A. The Contractor is not expected to encounter archaeological remains in the areas. However, if any concealed archaeological resources are encountered, the Contractor must notify the Contracting Officer. The site and the artifacts need to be assessed to determine if an archaeological site has been unexpectedly uncovered. Work needs to temporarily cease in the area and the Contracting Officer will contact the Archaeologist as soon as possible.

B. Any and all historic objects discovered during this project shall be turned over immediately with provenance information to the Contracting Officer.

C. In the event that human remains are discovered during construction activities, all activities in the vicinity of the discovery must stop and the Contracting Officer shall be contacted immediately.

If the remains are determined to have no forensic value and are of Native American descent or an historical person, all provisions outlined in the Native American Graves Protection and Repatriation Act (1990), as amended, will be followed.

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1 .5 WORK RESTRICTIONS

A. The road from Mammoth Hot Springs to the park’s Northeast Entrance is open year-round.

Other park roads, including the road to Tower Fall and all interior roads, are maintained from approximately May to early November. Access outside of those dates is weather-dependent and not guaranteed.

B. On-site Work Hours: Work shall be performed Monday through Friday. Work outside these hours or days shall be approved by the Contracting Officer.

C. In order to minimize soil and root disturbance, plywood or ground-protective mats shall be placed on the ground prior to driving heavy equipment, including drill rigs, off-road.

D. The Contractor shall plan to conduct only one trip in to and one trip out of each drill site if possible to minimize ground disturbance and reduce the spread of non-native species. Handwork with rakes shall be completed after work as needed to eliminate tire tracks.

1 .6 SPECIAL CONSTRUCTION REQUIREMENTS

A. If road closures are required for any drilling, the Contractor shall notify the Contracting Officer at least 2 weeks in advance of the planned closure.

B. The Contractor shall provide traffic control and signage for any required road closures. Traffic control operations shall meet all applicable standards and be conducted by certified staff. The Contractor shall submit a traffic control plan for approval by the Contracting Officer.

C. Equipment shall be washed prior to moving to each new work site.

D. Work at some sites may require archaeological monitoring by park staff. Provide proposed schedule to the Contracting Officer at least two weeks in advance of drilling so that archaeological monitoring can be coordinated.

E. Immediately notify the Contracting Officer if any of the following conditions are encountered during the drilling of wells: 1) groundwater level in the well rises to within 5 feet or less of the ground surface, 2) groundwater temperature is greater than 16 Celsius (60 F) more than ten feet below ground surface, 3) geothermal gases (carbon dioxide, sulfur dioxide, or hydrogen sulfide) are present above OSHA or NIOSH standards.

1 .7 FIELD VERIFICATION

A. Field verify all new and existing dimensions affecting the work of this contract before ordering products.

1 .8 CONSTRUCTION MATERIALS

A. All other materials, including borrow and aggregates, shall be Contractor-furnished from outside the park unless specified on construction drawings or specifications.

B. All materials, including borrow and aggregates, shall be obtained from a pit that has been certified weed-free by the park. These materials are Contractor-provided from outside the park.

A list of park-certified pits will be provided to the Contractor upon request.

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PART 2 PRODUCTS NOT USED.

PART 3 EXECUTION NOT USED.

PART 4 MEASUREMENT AND PAYMENT

4 .1 SUMMARY OF WORK

A. Payment will be included in the bid item to which this work relates.

END OF SECTION

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YELL GROUNDWATER MONITORING WELLS DEFINITION OF BID ITEMS

SECTION 01270

DEFINITION OF BID ITEMS

1 PART 1 GENERAL

1 .1 DESCRIPTION

A. The intent of this section is to explain, in general, what is and what is not included in a bid item, and the limits or cut-off points where one bid item ends and another begins.

B. If no bid item exists for a portion of the work, include the costs in a related bid item as described in the plans and individual specification sections.

1 .2 BID ITEM NO. 1 Seven Monitoring Wells

A. This bid item includes all work, equipment, and material required for drilling and completion of seven monitoring wells up to 50 feet deep. It also includes incidental costs such as mobilization and site cleanup.

1 .3 OPTIONAL BID ITEM NO. 2. Additional Monitoring Well

A. This bid item includes all work, equipment, and material required for drilling and completion of an additional monitoring well up to 50 feet deep, prior to de-mobilizing from Yellowstone National Park. It also includes incidental costs such as site cleanup.

PART 2 PRODUCTS NOT USED.

PART 3 EXECUTION NOT USED.

PART 4 MEASUREMENT AND PAYMENT NOT USED.

12/1/2023 01310-8

YELL GROUNDWATER MONITORING WELLS PROJECT MEETINGS

SECTION 01310

PROJECT MEETINGS

1 PART 1 GENERAL

1 .1 PRECONSTRUCTION CONFERENCE

A. Before start of construction, Contracting Officer will arrange a meeting with Contractor. The meeting agenda will include the following as a minimum:

1. Park rules and regulations

2. Authorized Representatives

3. Correspondence procedures

4. Labor standards provisions

5. Payroll reports

6. Modifications

7. Payments to Contractor

8. Acceptance/rejection

9. Construction meetings

10. Subcontractors

11. Documents required under the contract

12. Submittal of shop drawings, project data, samples, and approved equals

13. As-constructed drawings/operation and maintenance (O&M) manuals

14. Saturday, Sunday, holiday and night work

15. Reference materials

16. Contractor quality control

17. Notice to proceed

18. Tentative construction schedule

19. Recycling Program

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YELL GROUNDWATER MONITORING WELLS PROJECT MEETINGS

PART 2 PRODUCTS NOT USED.

PART 3 EXECUTION NOT USED.

PART 4 MEASUREMENT AND PAYMENT

4 .1 PROJECT MEETINGS

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YELL GROUNDWATER MONITORING WELLS SCHEDULES AND MONTHLY INSPECTIONS

SECTION 01320

SCHEDULES AND MONTHLY INSPECTIONS

PART 1 GENERAL

1 .1 DESCRIPTION

A. The work of this section consists of schedule requirements before and during construction.

1 .2 SCHEDULES

A. As specified in Section 01330.

B. As soon as possible after Notice of Award and before beginning any work, submit Progress Schedule and Schedule of Values as a package. Contracting Officer will review the Progress Schedule and the Schedule of Values for format and content.

1. Progress Schedule: Submit four copies of the Progress Schedule in bar chart format.

Show each bid item and area of work and break down work into the smallest element. The schedule shall correspond to each specification section and shall identify the critical path of the project. No progress payments will be made until acceptable progress schedule is provided.

2. Schedule of Values:

a. Submit a schedule of dollar values based on the Contract Bid Schedule. Include bond costs, mobilization, general condition costs, overhead, and profit in the total dollar value of unit price items and in the component parts of work for each lump-sum item, as described below. Do not include bond premiums, mobilization, general condition costs, overhead, or profit as separate items; however, payment for bond premiums can be made based upon evidence of payment to the surety. Bond premiums may be shown as a separate item.

b. Break down each lump-sum bid item into component parts of work for which progress payments may be requested. The total costs for the component parts of work shall equal the bid amount for that lump-sum item. The Contracting Officer may request data to verify accuracy of dollar values.

c. Do not break down unit price bid items. Use only the bid amount for unit price items.

d. The total cost of all items shall equal the contract sum. The Schedule of Values will form the basis for progress payments as provided for in the General Provisions.

PART 2 PRODUCTS NOT USED.

PART 3 EXECUTION NOT USED.

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YELL GROUNDWATER MONITORING WELLS SCHEDULES AND MONTHLY INSPECTIONS

PART 4 MEASUREMENT AND PAYMENT

4 .1 SCHEDULES AND MONTHLY INSPECTIONS

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YELL GROUNDWATER MONITORING WELLS SUBMITTALS

SECTION 01330

SUBMITTALS

PART 1 GENERAL

1 .1 DESCRIPTION

A. The work of this section consists of submittal requirements before and during construction.

1 .2 RELATED REQUIREMENTS

A. Closeout submittals - Section 01770.

1 .3 SUBMITTAL AND APPROVAL PROCEDURES

A. All submittals shall be transmitted using National Park Service form CM-16R. (A copy of the form is included at the end of this section.) No action will be taken on a submittal item unless accompanied by the transmittal form.

B. As specified in the individual sections, forward submittals to Contracting Officer at least 14 days before need for approval. Unless a different number is specified, submit one electronic copy of each shop drawing, one electronic copy of manufacturer's catalog sheets (cut sheets), one specimen of each sample, and one electronic copy of all other submittals requested.

1. Shop Drawings: Include the following information with each copy of shop drawings:

a. Date.

b. Date of revisions (when applicable).

c. Contractor's certification that shop drawing has been checked for compliance with contract documents.

d. Details of fabrication, assembly and erection including connections and engagement to contiguous work.

e. Materials used.

f. All required dimensions.

g. The term "by others" shall not be used. All work to be performed by others shall be identified by Contractor or subcontractor name, discipline, or trade.

2. Samples: Samples shall be large enough to illustrate clearly the functional characteristics and full range of color, texture, or pattern.

3. Manufacturers' Catalog Sheets: Submit only pertinent pages; mark each copy of standard printed data to identify specific products proposed for use.

4. Manufacturer's Installation Instructions: When contract documents require compliance with manufacturer's printed instructions, provide one complete set of instructions for

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Contracting Officer and keep another complete set of instructions at the project site until substantial completion.

C. Contracting Officer reserves the right to require submittals in addition to those called for in individual sections.

D. Approved Equals:

1. For each item proposed as an "approved equal," submit supporting data, including:

a. Drawings and samples as appropriate.

b. Comparison of the characteristics of the proposed item with that specified.

c. Changes required in other elements of the work because of the substitution.

d. Name, address, and telephone number of vendor.

e. Manufacturer's literature regarding installation, operation, and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists. Describe availability of maintenance service, and state source of replacement materials.

2. A request for approval constitutes a representation that Contractor:

a. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

b. Will provide the same warranties for the proposed item as for the item specified.

c. Has determined that the proposed item is compatible with interfacing items.

d. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

e. Waives all claims for additional expenses that may be incurred as a result of the substitution.

3. Construction Materials: The Contractor is encouraged to submit for approval products made out of recycled or environmentally responsible material. Every effort will be made by the National Park Service to approve these materials.

E. Coordinate all submittals and review them for legibility, accuracy, completeness, and compliance with contract requirements. Forward submittals that are related to or affect one another as a package to facilitate coordinated review. Each transmittal shall contain only data specific to that individual submittal.

F. Submittal Numbering:

1. Number each submittal consecutively.

2. For re-submittals use the original submittal number, plus a letter suffix beginning with A.

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3. Additional re-submittals of the same item shall contain the original number with the next consecutive letter.

G. Contracting Officer's Review:

1. Submittals will be returned disapproved without technical review if identification information is missing, not filled in, or if placed on the back of the submittal; an incorrect number or format of submittals is provided; the transmittal form is incorrectly filled out;

submittals are not coordinated; or submittals do not show evidence of Contractor's approval.

2. Any work done or orders for materials or services placed before approval shall be at the Contractor's own risk.

3. After reviewing submittals, the Contracting Officer will return one copy of form DSC-CM 16 and one copy of applicable (marked up) submittal sheets to the Contractor. Shop drawing review notations will be returned on the reproducible original shop drawing. All other submitted items will be retained. The Contractor is responsible for producing additional copies for his/her own use.

4. The returned submittal will be marked in one of three ways as defined below:

a. APPROVED: Acceptable with no corrections.

b. APPROVED WITH NOTATIONS: Minor corrections or clarifications required.

All comments are clear and no further review is required. The Contractor shall address all review comments when proceeding with the work.

c. DISAPPROVED - RESUBMIT: Rejected as not in accordance with the contract or as requiring major corrections or clarifications. The Contracting Officer will identify the reasons for disapproval. The Contractor shall revise and resubmit with changes clearly identified.

PART 2 PRODUCTS NOT USED.

PART 3 EXECUTION NOT USED.

PART 4 MEASUREMENT AND PAYMENT

4 .1 SUBMITTALS

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TRANSMITTAL - NATIONAL PARK SERVICE

12/1/2023 01330-16

TRANSMITTAL CONTINUATION - NATIONAL PARK SERVICE

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YELL GROUNDWATER MONITORING WELLS TEMPORARY SERVICES

SECTION 01510

TEMPORARY SERVICES

PART 1 GENERAL

1 .1 DESCRIPTION

A. The work of this section consists of providing temporary services required for Contractor's performance of the work of this contract.

PART 2 PRODUCTS

2 .1 GENERAL

A. Temporary materials may be new or used, but must be adequate in capacity for the required usage, must not create unsafe conditions, and must not violate requirements of applicable codes and standards.

2 .2 SANITARY FACILITIES

A. Where public restrooms are not convenient to work area provide and maintain temporary toilet facilities.

2 .3 GENERATORS

A. Where electric service is not available, provide generators with mufflers and spark arresting devices.

2 .4 FIRE PROTECTION EQUIPMENT

A. Extinguisher shall have a minimum UL rating of 2-A:10-B:C.

PART 3 EXECUTION

3 .1 ELECTRICITY

A. Electricity is not available at job site. Contractor shall furnish generators as necessary.

3 .2 TELEPHONE

A. Office phones are available for emergency use at visitor centers and ranger stations. No cell service is available at the job sites.

3 .3 WATER

A. Make connections to existing facilities for construction water. Ensure air gap or use backflow preventer. Government will pay costs for water used.

B. Furnish cool, potable water for construction personnel in locations convenient to work stations.

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3 .4 SANITARY FACILITIES

A. Place in approved locations secluded from public observation and convenient to workstations.

Relocate as work progress requires.

B. Maintain and clean toilet facilities daily.

C. Completely remove sanitary facilities on completion of work.

3 .5 FIRE PREVENTION AND PROTECTION

A. Large wildland fires can occur in Yellowstone. The fire potential could be high during the planned construction period, which could result in restrictions on construction activities with the potential to cause fires. Please take all precautions necessary to prevent fires occurring at this site due to construction activities.

B. Yellowstone National Park requires contractors performing work activities involving open flames or producing heat and/or sparks (grinding, soldering, etc.) to complete a “Hot Work Permit” before commencing this work each day. The form for this permit is included at the end of this section.

C. Responsible Person: A capable and qualified person shall be placed in charge of fire protection.

The responsibilities shall include locating and maintaining fire protective equipment and establishing and maintaining safe torch cutting and welding procedures.

D. Hazard Control: Take all necessary precautions to prevent fire during construction. Do not store flammable or combustible liquids in existing buildings. Provide adequate ventilation during use of volatile or noxious substances.

E. Spark Arresters:

1. Written determinations of periods and areas of potential fire hazard will be issued by Contracting Officer.

2. Equip all gasoline or diesel powered equipment used during periods of potential fire hazards or in potential forest and grass fire locations with spark arresters approved by the USDA Forest Service.

F. Service and Refueling Areas: Locate areas a minimum of 50 feet from buildings. Shut down equipment before refueling.

G. Smoking: Smoking within buildings or temporary storage sheds is prohibited.

H. Welding: Cutting by torch or welding shall be performed only when adequate fire protection is provided.

3 .6 PROTECTION EQUIPMENT REQUIRED

A. Vehicles and Equipment: Provide one extinguisher on each vehicle or piece of equipment.

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PART 4 MEASUREMENT AND PAYMENT

4 .1 TEMPORARY SERVICES

IN THE EVENT OF AN EMERGENCY DIAL 911 AND USE

YOUR FACILITIES EMERGENCY PROCEDURES.

INSTRUCTIONS

HOT WORK BEING DONE BY

□ EMPLOYEE

□ CONTRACTOR _____________________

I verify the above location has been examined, the precautions checked on the required precautions checklist have been taken to prevent fire, and permission is authorized for work.

SIGNATURE OF PERSON DOING HOT WORK:

Hot Work Permit This Hot Work Permit is required for any operation involving open flames or producing heat and/or sparks. This includes, but is not limited to: Brazing, Cutting, Grinding, Soldering, Thawing Pipe, Torch Applied Roofing, and Cadwelding.

□ Available sprinklers, hose streams and extinguishers are in service and operable.

□ Hot Work equipment in good repair Requirements within 35 ft. (10 m) of work

□ Flammable liquids, dust, lint and oil deposits removed.

□ Explosive atmosphere in area eliminated.

□ Floors swept clean.

□ Combustible floors wet down, covered with damp sand or fire-resistant sheets.

□ Remove all combustibles where possible.

Otherwise protect with fire-resistant tarpaulins or metal shields.

□ All wall and floor openings covered.

□ Fire-resistant tarpaulins suspended beneath work.

Work on walls or ceilings/enclosed equipment

□ Construction is noncombustible and without combustible covering or insulation

□ Combustibles on other side of walls moved away

□ Danger exist by conduction of heat into another area.

□ Enclosed equipment cleaned of all combustibles.

□ Containers purged of flammable liquids/vapors.

Fire watch/Hot Work area monitoring

□ Fire watch will be provided during and for (60 minutes) after work, including any coffee or lunch breaks.

□ Fire watch is supplied with suitable extinguishers

□ Fire watch is trained to use equipment and is sounding alarm.

□ Fire watch may be required to adjoining areas, above, and below.

□ Monitor Hot Work are for 30 minutes after job is completed.

Other Precautions Taken

□ Confined space entry permit required.

□ Is area protected with smoke and heat detection

□ Ample ventilation to remove smoke/vapor from work area.

□ Lockout/tagout required

THIS PERMIT IS GOOD FOR ONE DAY

ONLY!

NATURE OF JOB/OBJECT:

PERMIT

EXPIRES:

DATE: TIME:

LOCATION/BUILDING & FLOOR:

BEFORE INITIATING HOT WORK, ENSURE PRECAUTIONS ARE IN PLACE!

MAKE SURE AN APPROPRIATE FIRE EXTINGUISHER IS READILY AVAILABLE

Required Precautions Checklist

A. Verify precautions listed at right (or do not proceed with the work) B. Complete and retain .

C. Issue COPY to person doing job.

DATE: JOB NO.

NAME OF PERSON DOING HOT WORK:

SIGNED:

12/1/2023 01570-20

YELL GROUNDWATER MONITORING WELLS TEMPORARY CONTROLS

SECTION 01570

TEMPORARY CONTROLS

PART 1 GENERAL

1 .1 DESCRIPTION

A. The work of this section consists of providing temporary controls.

PART 2 PRODUCTS NOT USED.

PART 3 EXECUTION

3 .1 HOUSEKEEPING

A. Keep project neat, orderly, and in a safe condition at all times.

B. Provide enough containers for collecting construction debris and construction materials to be recycled.

C. Wet down dry materials to prevent blowing dust.

D. Keep volatile wastes in covered containers.

E. Utilize excavated material as soon as possible.

3 .2 DISPOSAL

A. Unless otherwise specified, all removed material becomes the property of the Contractor and shall be disposed of outside the park.

B. Immediately remove hazardous rubbish from project site. Place other construction debris in refuse containers at least daily. Dispose of refuse at least weekly, in a legal manner, at public or private dumping areas outside the park. Do not burn or bury refuse inside the park.

3 .3 AIR AND WATER POLLUTION CONTROL

A. Take all necessary reasonable measures to reduce air and water pollution by any material or equipment used during construction.

B. Do not dispose of volatile wastes or oils in storm or sanitary drains.

C. Do not allow waste materials to be washed into streams or bodies of water.

3 .4 EROSION CONTROLS.

A. Place silt fencing in natural and manmade drainage paths disturbed during construction or receiving water runoff by areas disturbed during construction.

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YELL GROUNDWATER MONITORING WELLS TEMPORARY CONTROLS

B. Place silt fencing to prevent sediment from depositing on paved areas, buildings, landscaping, and residential property.

PART 4 MEASUREMENT AND PAYMENT

4 .1 TEMPORARY CONTROLS

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YELL GROUNDWATER MONITORING WELLS PROJECT CLOSEOUT

SECTION 01770

PROJECT CLOSEOUT

PART 1 GENERAL

1 .1 DESCRIPTION

A. The work of this section consists of final cleanup, closeout submittals, and final inspection procedures.

PART 3 EXECUTION

3 .1 CLEANING

A. Before scheduling the final inspection, remove all tools, equipment, surplus materials, and rubbish. Restore or refinish surfaces that are damaged due to work of this contract to original condition. Pick up all construction debris from the site. At time of final inspection, project shall be thoroughly clean and ready for use.

3 .2 PROJECT RECORD DRAWINGS

A. Maintain one complete full-size set of contract drawings and one full-size set of vendor-supplied drawings. Clearly mark changes, deletions, and additions using National Park Service drafting standards to show actual construction conditions. Show additions in red, deletions in green, and special instructions in blue.

B. Keep record drawings current. Make record drawings available to the Contracting Officer for inspection at the time of monthly progress payment requests. If project record drawings are not current, the Contracting Officer may retain an appropriate amount of the progress payment.

C. On completion of the total project, submit complete record drawings. Include all shop drawings, sketches, and additional drawings that are to be included in the final set, with clear instructions showing the location of these drawings.

3 .3 CLOSEOUT SUBMITTALS

A. Submit before final inspection request.

1. Project Record Drawings: As specified above.

2. Guarantees and Bonds: As specified in individual sections.

3. Spare Parts and Materials: As specified in individual sections.

4. Operation and Maintenance Data: As specified in individual sections.

5. Operating Tools: As specified in the individual sections.

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YELL GROUNDWATER MONITORING WELLS PROJECT CLOSEOUT

6. Special Tools: One set of special tools required to operate, adjust, dismantle, or repair equipment. Special tools are those not normally found in possession of mechanics or maintenance personnel.

3 .4 SUBSTANTIAL COMPLETION AND FINAL INSPECTION

A. Submit written certification that project, or designated portion of project, is substantially complete, and request in writing a final inspection. Contracting Officer will make an inspection within 10 days of receipt of request.

1. When work is determined to be substantially complete, Contracting Officer will prepare a list of deficiencies to be corrected before final acceptance and issue a Letter of Substantial Completion. Contractor shall complete the work described on the list of deficiencies within 60 calendar days, as weather permits. If the Contractor fails to complete the work within this time frame, the Contracting Officer may replace, repair, or remedy the work with an appropriate reduction in the contract price.

2. If work is not determined to be substantially complete, Contracting Officer will notify Contractor in writing. After completing work, Contractor shall resubmit certification and request a new final inspection.

3 .5 ACCEPTANCE OF THE WORK

A. After all deficiencies have been corrected, a Letter of Acceptance will be issued.

PART 4 MEASUREMENT AND PAYMENT

4 .1 PROJECT CLOSEOUT

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YELL GROUNDWATER MONITORING WELLS GROUNDWATER MONITORING WELL

SECTION 13200

GROUNDWATER MONITORING WELL

PART 1 - GENERAL

1 .1 DESCRIPTION

A. The work of this Section consists of well drilling, well casing, well screen, filter pack, well grouting, development, and completion records for a groundwater monitoring well.

1 .2 INCIDENTAL WORK

A. The Contractor shall furnish all labor, materials, equipment, and other incidentals necessary to successfully complete each item of work.

1 .3 SUBMITTALS

A. As specified in Section 01330. Submit information for the following.

1. Proposed method of well construction and drilling mud/foams to be used.

2. Well casing

3. Well screen

4. Filter pack material

5. Protective well cover

6. Well log and completion records.

7. Driller experience and qualifications.

8. Engineer or Geologist experience and qualifications.

1 .4 QUALITY ASSURANCE REGULATIONS

1. Contractor shall hold a current Wyoming State license for well drilling. Contractor shall also be experienced in the drilling and installation of groundwater monitoring wells.

Provide documentation of experience prior to drilling.

2. An onsite, licensed Engineer or Geologist shall oversee the work. The Engineer or Geologist shall be experienced in drilling, soil and rock logging, water sampling, and groundwater monitoring well installation. Provide documentation of experience prior to drilling.

3.

PART 2 – PRODUCTS

2 .1 CASING

A. 2” diameter PVC SCH 40 well casing per ASTM F480 or approved equal.

1. Provide an easily removable Schedule 40 PVC well plug to seal the top of the casing. This plug shall have a gasket that creates a watertight seal.

2. Casing centralizers must be located at twenty foot intervals to ensure an adequate thickness of the grout seal.

2 .2 WELL SCREEN AND FILTER PACK

A. Well Screen

1. 2” diameter PVC SCH 40 well casing per ASTM F480 or approved equal.

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2. The well screen shall supplied with multiple rows of machined circumferential slots, to allow for water entry into the casing, with No. 10 slot size (0.010”).

3. Casing centralizers must be located at the top and bottom of the screened sections to insure an adequate thickness of sand filter around the entire circumference of the screened area.

B. Filter Pack

1. The gravel filter shall be of uniform size and selected to be retained by the well screen.

NSF 61 approved washed silica sand per AWWA A and B 100. Colorado Silica Sand as manufactured by Pioneer Sands www.pioneersands.com, or approved equal.

Gravel Filter pack properties:

a. Sieve size 20/40

b. Silica Content 99%+

c. Acid Solubility less than 1%

d. AWWA Porosity 44%

e. Roundness .6+

f. Sphericity .6+

2 .3 DRILLING FLUID

A. Any drilling fluids shall consist of drill water and/or an approved commercial agent certified by

NSF/ANSI 60 standard. Toxic and/or dangerous substances shall not be added to the drilling fluid.

2 .4 CEMENT GROUT

A. Grout shall be a mixture of Portland cement and water and an additive, such as Bentonite or approved equal.

1. Portland cement shall be Type I complying with ASTM C-150 with no more than 5% bentonite.

2. Water/cement ratio shall be no more than 6 gallons of water to each 94-pound bag of cement.

PART 3 – EXECUTION

3 .1 DRILLING APPROACH

1. Air rotary, mud rotary, auger, or other drilling techniques will be used to advance a borehole to a total depth 20 feet deeper than the encountered ground water elevation.

2. Drill cuttings will be collected in a manner that dust and rock fragments are mitigated, and that representative cuttings can be retained for geologic logging. Cutting samples shall be taken at 5-foot intervals and formation changes.

3. Temperature in the borehole will be measured at 10-foot increments. If increasing temperatures are noted, temperature measurements will be taken at 5-foot increments.

4. All tools, drilling equipment, pipe, etc. shall be pre-washed and free of contaminants before arriving to each drill site.

5. The borehole will be initially drilled at a diameter to permit placement of permanent or temporary surface casing, maintaining at least 4 inches of annular space for grouting or other well drilling operations, the surface casing depth shall be sufficient until stable ground conditions are encountered to allow for borehole drilling.

6. Drill a minimum 8 inch borehole to permit installation of a 3-inch PVC casing or screen from ground surface to total depth, maintaining at least 4 inches of space beyond the casing bell ends or coupling (2-inch annulus).

7. The borehole will remain vertical and plumb to total depth such that a well can be constructed with casing, and centralizers, free hanging in the borehole and maintaining a consistent annular diameter.

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8. Foaming agent additions are permitted to assist in lifting drill cuttings to the surface from depth if pre-approved. A de-foaming agent and/or cyclone bubble-reduction device will be necessary at the surface to reduce the amount of surface impact due to foam return.

3 .2 WELL CASING

1. Casing joints shall be solvent welded or mechanically joined (PVC) threaded and couple, with sections at least 10 feet in length.

2. Borehole centralizers shall be welded, or mechanically attached, at 20 feet intervals.

3. The well casing will extend to 18-24 inches above ground elevation.

3 .3 WELL SCREEN AND FILTER PACK

1. The well will require 10 feet of screen across one interval.

2. Borehole centralizers shall be welded, or mechanically attached, to the top and bottom of the well screen and at 20 feet intervals.

3. A sand filter pack will be installed from total depth of the borehole to height indicated on plans.

4. Clean, washed silica sand be installed via tremie pipe, or float method, to eliminate the potential for bridging.

3 .4 WELL SEAL

1. Surface Formation Seal:

a. Well shall be constructed with a surface seal. The seal shall consist of cement grout placed in one continuous application from the bottom of the zone to be grouted to the surface. Curing additives, such as calcium chloride, shall not exceed ten percent of the total volume of grout. Bentonite as an additive shall not exceed five percent of the total volume. Any annular space between the outer casing and an inner casing shall be completely sealed to prevent contamination of the well.

b. A retainer, packer or plug shall be provided to prevent grout from entering the well.

2. Grouting:

a. Temporary Casing Installed

1) Grout shall be placed to completely fill the annular space between the temporary casing or open borehole and the permanent casing. The temporary casing shall be slowly removed allowing the grout to fill the area between the wall of the well and the casing.

2) Grout shall be placed in accordance with the Manual of Water Well Practices for Continuous Grouting. The tremie pipe method shall be used.

3) Grout shall be added as needed to fill the entire void between the borehole and casing. The Contractor may choose not to install temporary casing for installation of the grout seal. However, the Contractor shall ensure that the entire void can be grouted.

b. Temporary Casing Not Installed

1) Grout material shall be placed by a positive displacement method such as pumping or forced injection by air pressure after water or other drilling fluid has been circulated in the annular space sufficient to clear obstructions. Grout shall be injected in the annular space between the inner casing and either the outer casing or the borehole. The grout pipe shall extend from the surface to the bottom of the zone to be grouted.

2) The grout pipe shall have a minimum I.D. of 1" for cement grout. Grout shall be placed in one continuous operation from bottom to top. The grout pipe may be slowly raised as the grout is placed but the discharge end of the grout pipe must be submerged in grout at all times until grouting is completed. The grout pipe shall be full, to the surface, at all times until the completion of the

12/1/2023 13200-27 grouting. In the event of interruption in the grouting operations, the bottom of the pipe should be raised above the grout level and should not be resubmerged until all air and water have been displaced and the pipe flushed clean with clear water. During placement of the grout the permanent casing shall be vibrated or turned to assist grout settlement.

3. Curing: No drilling or other work shall be permitted in the drill hole within 48 hours after placing grout when Type I Portland Cement is used.

4.

3 .5 WELL DEVELOPMENT

1. At the completion of construction, the well must be developed to develop the filter pack, remove fine-grained sediments from near the well screen, remove any drilling fluids, and remove material that may have accumulated in the well.

2. The method of well development shall be jetting or over pumping, or other method approved by the Contracting Officer. The method, however, shall be consistent with National Ground Water Association’s “Manual of Water Well Construction Practices”.

3. Development shall continue until the well produces clear, sediment-free water.

3 .6 WELL ACCEPTANCE

A. For acceptance, verify the well alignment by passing a 1.5 inch x 36 inch bailer through the entire length of the well. If the bailer does not pass freely through, the well shall not be accepted.

B. Unacceptable wells shall be repaired or replaced. If repairs are unsuccessful, the old well shall be abandoned.

3 .7 WELL ABANDONMENT

A. Abandoned or disapproved monitor wells that will not be utilized for their intended use shall be plugged per Wyoming Department of Environmental Quality Water Quality Rules and Regulations, Chapter 26, Section 11.

3 .8 RECORDS

1. After completion of all work required by this section, the Contractor shall submit a well drilling report, and drilling log to the NPS.