LINC Spec 33 01 10 81 Water Supply Well Abandonment ASI 01.pdf

WATER SUPPLY WELL ABANDONMENT 33 01 10.81

Long Island National Cemetery ASI 01

Facility Renovation July 3, 2023

815CM3041 ISSUED FOR CONSTRUCTION

SECTION 33 01 10.81 - WATER SUPPLY WELL ABANDONMENT

TABLE OF CONTENTS

PART 1 - GENERAL

1.1 GENERAL DESCRIPTION

1.2 WORK INCLUDED

1.3 UNIT PRICES

1.3.1 CLEANUP

1.4 REFERENCES

1.5 ADMINISTRATIVE REQUIREMENTS

1.5.1 NOTIFICATION

1.5.2 DELIVERY, STORAGE, AND HANDLING

1.5.3 PROJECT AND SITE CONDITIONS

1.5.4 WATER WELL ABANDONMENT REQUIREMENTS

1.5.4.1 WELL ABANDONMENT PLAN

1.5.5 QUALIFICATIONS

1.6 SUBMITTALS

1.7 QUALITY ASSURANCE

PART 2 – PRODUCTS AND MATERIALS

2.1 MATERIAL REQUIREMENTS

PART 3 - EXECUTION

3.1 PREPARATION

3.2 WELL ABANDONMENT

3.2.1 DEPARTMENT OF ENVIRONMENTAL CONSERVATION NOTIFICATION

3.2.2 OBSTRUCTION REMOVAL

3.2.3 WELLHEAD MODIFICATION

3.2.4 WELL DISINFECTION

3.2.5 SAND AND GROUT PLACEMENT

3.2.6 DOCUMENTATION SUBMITTAL

3.2.7 PROTECTION OF WELLS

3.3 REQUIREMENTS AFTER WELL ABANDONMENT

WATER SUPPLY WELL ABANDONMENT 33 01 10.81

3.3.1 SITE CLEANUP

3.3.2 WASTE DISPOSAL

3.4 FIELD QUALITY CONTROL

3.4.1 DOCUMENTATION AND QUALITY CONTROL REPORTS

3.4.1.1 WATER WELL ABANDONMENT AND DECOMMISSIONING REPORT

3.4.1.2 PROJECT PHOTOGRAPHS

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PART 1 - GENERAL

1.1 GENERAL DESCRIPTION

A. Contractor shall be responsible for abandoning an existing 16-inch diameter irrigation well. The well is equipped with a pump and wiring that must be removed prior to completing well abandonment. The well is located within a 24-feet by 24-feet brick well house with a roof well access panel. Please refer to the ECS Mid-Atlantic, LLC report titled Irrigation Supply Well Desktop

Evaluation, dated January 21, 2022, for more information about the well and other pertinent information.

B. The irrigation well’s construction is as follows:

1. 8-inch diameter screen from 256–316 feet below ground surface (bgs).

2. 8-inch diameter casing from 226–256 feet bgs.

3. 16-inch diameter casing from ground surface to 226 feet bgs.

4. Unknown annular space filter packing and grouting.

C. While minimum standards are specified herein, the contractor shall be responsible for altered or additional means and methods necessary to provide a well abandonment in accordance with New

York Department of Environmental Conservation (DEC) recommendations. The Government and

Site Engineer shall be consulted prior to deviating from the specifications provided herein.

D. A well abandonment permit is not required by DEC or Suffolk County to complete the well abandonment activities described herein.

E. Certifications and reports shall be submitted as required in other sections of this preliminary design specification as required by the Government.

F. All reasonably necessary precautions shall be taken during well abandonment to ensure that contaminants do not reach the subsurface environment.

1.2 WORK INCLUDED

A. DEC notification

B. Well pump, wiring, and obstruction removal

C. Well disinfection

D. Well abandonment

E. Submittal of a Water Well Abandonment and Decommissioning Report form to DEC’s Region 1 office

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1.3 UNIT PRICES

Payment for each specified item will be made at the contract unit price for that item. Payment includes full compensation for equipment, materials and labor used for well abandonment;

removal and disposal of existing well pump, wiring, and any other obstructions; well disinfection;

and submittal of a Water Well Abandonment and Decommissioning Report form to DEC’s Region

1 office. Payment is not allowed for wells abandoned due to construction practices not in accordance with this specification, faulty construction practices or for the convenience of the

Contractor.

1.3.1 CLEANUP

Separate payment will not be made for cleanup of the site. Cleanup means restoring the site to its pre-construction condition, in accordance with paragraph SITE CLEANUP. Cleanup is considered part of and incidental to the abandonment of the well.

1.4 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

A. American Water Works Association (AWWA) / American National Standards Institute (ANSI)

1. AWWA/ANSI B100 (2016) Granular filtration material

2. AWWA/ANSI C654 (2013) Disinfection of wells

B. American Petroleum Institute (API

1. API SPEC 10A (2019) Specification for cements and materials for well cementing

C. ASTM International (ASTM)

1. ASTM C150/C150M (2004) Standard specification for Portland cement

D. Code of New York (CNY)

1. CNY ECL §15-1525 (2022) Water well drillers in New York state registration

2. CNY Title 10, Chp. I, Part 5-1, Apx. 5B (2022) Standards for water wells

E. New York Department of Environmental Conservation (DEC)

1. No Document Number (2022) Water supply well decommissioning recommendations

F. New York State Department of Health

1. Fact Sheet #4 (2022) Decommissioning abandoned wells

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1.5 ADMINISTRATIVE REQUIREMENTS

1.5.1 NOTIFICATION

Notify the Government Point of Contact at least 30 days prior to starting well abandonment. The

Government Point of Contact is responsible for contacting local, state, and federal regulatory agencies in accordance with the applicable reporting requirements.

1.5.2 DELIVERY, STORAGE, AND HANDLING

Store and maintain well abandonment materials in a clean, uncontaminated condition throughout the course of the project.

1.5.3 PROJECT AND SITE CONDITIONS

Access to the well site, including any utility clearance, permits, licenses, or other requirements and the payment thereof necessary for execution of the work, is the responsibility of the

Government. The Contractor shall furnish a copy of all required documents to Government at least 30 working days before commencement of the work. Obtaining rights-of-entry is the responsibility of the Government. Contractor shall visit the well location to observe any condition that may hamper transporting equipment or personnel to the site. If clearing or relocation is necessary, the Contractor and Government must agree on a suitable clearing, or relocation plan, and the location of any required access road.

1.5.4 WATER WELL ABANDONMENT REQUIREMENTS

1.5.4.1 WELL ABANDONMENT PLAN

Submit a plan as specified herein describing planned well abandonment methods 30 calendar days prior to beginning well abandonment operations. Incorporate the following requirements into the Well Abandonment Plan and follow them in the field. The plan must include, but not be limited to, a discussion of the following:

A. Description of well abandonment methods and well protective measures.

B. Description of well construction materials, including sand or gravel, cement grout, well abandonment water.

C. Description of quality control procedures to be used for placement of well abandonment materials, including depth measurements.

D. Forms intended for documenting well abandonment methods and state well abandonment forms.

E. Description of contamination prevention practices for well abandonment materials and equipment decontamination procedures.

F. List of applicable publications, including state and local regulations and standards.

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G. List of personnel assignments for this project, and personnel qualifications.

H. Description of specific methods to be employed to control potential contamination or pollution arising from well abandonment activities.

1.5.5 QUALIFICATIONS

Submit personnel qualification documentation. A geologist with at least three years of experience in documenting supply well abandonment activities, registered in the state of New York, must be on site during well abandonment activities. Employ a driller licensed in the state of New York, according to the state requirements. Document a minimum of 10 years of supply well abandonment experience.

Submit proof that Contractor is licensed as required by Code of New York ECL §15-1525. Provide information on and references for at least 5 similar well abandonments successfully completed.

1.6 SUBMITTALS

The following submittals shall be submitted by Contractor.

A. Product Data shall be submitted for the following:

1. Neat cement grout: product manufacturer and specifications.

2. Clean sand or gravel: product manufacturer and specifications.

B. Methodology and Site Considerations

1. Indicate type and size of drilling equipment to be used along with indication of well abandonment methods.

2. Indicate erosion and sediment control methods to be used during drilling. Provide drawing and/or details as necessary to indicate disposal methods of well abandonment fluids generated during well abandonment for approval by the Government and Site Engineer.

1.7 QUALITY ASSURANCE

A. Well driller to be licensed as required by Code of New York ECL §15-1525. Provide information on and references for at least 5 similar well abandonments successfully completed.

B. Well to be abandoned in accordance with DEC’s Water Supply Well Decommissioning

Recommendations document.

PART 2 – PRODUCTS AND MATERIALS

2.1 MATERIAL REQUIREMENTS

A. Materials shall comply with the requirements of the Safe Drinking Water Act and federal regulations for potable water, wastewater, or reclaimed water systems, as applicable. Products and components must not leach toxic substances into the water that is distributed to the public

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or the environment in their intended use. Disposal methods for residuals and used components that meet applicable regulatory requirements shall be available.

B. Neat Cement Grout.

1. Neat cement shall consist of a mixture of ASTM C150, Type I or ASTM C150, Type II Portland cement and water in the ratio of not more than 6.0 gallons of water per 94-pound sack of cement weighing approximately 118 pounds per cubic foot. The slurry shall be free of lumps when placed into the well.

C. Sand or Gravel.

1. Sand or gravel shall be clean and free of clay and organic matter. The filling should be no less permeable than that of a coarse sand.

D. Water.

1. Water added to the neat cement grout slurry shall be potable and free of contaminants.

PART 3 - EXECUTION

3.1 PREPARATION

Please refer to the ECS Mid-Atlantic, LLC report titled Irrigation Supply Well Desktop Evaluation, dated

January 21, 2022, for more information about the well and other pertinent information.

3.1.1 PROTECTION OF EXISTING CONDITIONS

Maintain existing survey monuments and wells and protect them from damage from equipment and vehicular traffic. Repair any items damaged during this work. Protect wells scheduled for abandonment from damage so that abandonment may be performed according to these specifications.

3.1.2 CONTRACTOR’S RESPONSIBILITY

The Contractor shall be responsible for performing all the work in accordance with these specifications. If evidence indicates that a change to the specifications is required due to unforeseen circumstances the Contractor shall immediately notify the Government and Site Engineer of the conditions. The Contractor shall then await instructions from the Government.

3.1.3 DECONTAMINATION

Clean equipment that will be used during well abandonment activities with high-pressure hot water/steam prior to commencing well abandonment activities at the well location. Decontaminate at a central decontamination station in an area that is remote from, and cross-or down-gradient from the well being abandoned. Use water for cleaning from a Government approved source.

3.1.4 WATER SOURCE

The Contractor is responsible for locating the source, obtaining the water from the source, transporting it to, and storing it at the site.

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3.1.5 WELL SITE CONSIDERATIONS

A. Security of well site. At all times during the progress of the work, the Contractor shall use reasonable precautions to prevent either tampering with the well or the entrance of foreign material or surface water into the well.

3.2 WELL ABANDONMENT

3.2.1 DEPARTMENT OF ENVIRONMENTAL CONSERVATION NOTIFICATION

A. DEC’s Region 1 office shall be contacted at least one week prior to starting well abandonment activities. DEC shall be notified of the planned schedule and methods for well abandonment. Any instructions provided by DEC shall be followed by the Contractor.

3.2.2 OBSTRUCTION REMOVAL

A. All equipment, materials, debris, and obstructions shall be removed from the well. Equipment removal shall include removal and disposal of the well’s pump, drop pipe, and wiring.

3.2.3 WELLHEAD MODIFICATION

A. Well casing shall be cut off at the surface not more than three inches from floor level.

3.2.4 WELL DISINFECTION

A. The well shall be disinfected prior to the initiation of sand and grout placement to remove bacteriological contamination that may adversely impact groundwater quality. Refer to

ANSI/AWWA C654 for disinfection procedures.

B. The chlorine solution used for disinfecting the well shall be of such volume and strength and shall be so applied that a concentration of at least 100 mg/L of available chlorine shall be obtained for the entire water depth of the well, and this solution shall remain in the well for a period of at least

12 hours.

3.2.5 SAND AND GROUT PLACEMENT

A. The well’s 8-inch diameter screen is present from 256–316 feet below ground surface bgs. The screened portion of the well shall be filled with clean sand or gravel from the base of the well to

254 feet bgs. The filler shall be no less permeable than a coarse sand and shall not extend more than three feet above the top of the screen.

B. Neat cement grout shall consist of a mixture of ASTM C150, Type I or ASTM C150, Type II Portland cement and water in the ratio of not more than 6.0 gallons of water per 94-pound sack of cement

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weighing approximately 118 pounds per cubic foot. Upon mixing, grout shall immediately be pumped into the well without delay. Grout shall be placed from the 1–254 feet bgs interval.

C. Neat cement grout placed in one continuous operation under pressure using a tremie pipe of at least one-inch inner diameter. The tremie pipe shall be placed at the bottom of the grouted interval at the start of operations and may be advanced upward as grouting advances. The tremie pipe shall remain submerged in the slurry at all times during slurry placement. The grout slurry shall be free of lumps and have the bearing strength sufficient to prevent subsidence and support traffic or building loads.

D. Grouting shall continue until grout appears within 12 inches of the well house’s floor level.

E. The tremie pipe may not be left in place and shall be gradually removed.

F. Upon completion of grouting, the upper 12 inches below the well house’s floor level shall be filled with cement to be level with the well house floor.

G. Contractor shall record quantities of all materials used during well abandonment activities.

H. Any materials, debris, tools, or machinery waste used or generated during well abandonment activities shall be removed from the site and disposed of in accordance with local and state regulations.

3.2.6 DOCUMENTATION SUBMITTAL

A. A Water Well Abandonment and Decommissioning Report form shall be completed and submitted to DEC’s Region 1 office.

3.2.7 PROTECTION OF WELLS

A. At all times during the progress of the work, the Contractor shall protect the well to effectively prevent either tampering with the well or the entrance of foreign matter into it.

3.3 REQUIREMENTS AFTER WELL ABANDONMENT

3.3.1 SITE CLEANUP

After completion of the work, remove tools, appliances, surplus materials, temporary drainage, rubbish, and debris incidental to work. Backfill and dress excavation and vehicular ruts to conform with the existing landscape. Repair or replace utilities, structures, roads, fences, or any other pre-existing item damaged due to the Contractor’s negligence; this must be accomplished prior to completion of this contract.

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3.3.2 WASTE DISPOSAL

Dispose of slurry, drill cuttings, and other solid or liquid material bailed, pumped, or otherwise removed from the well during abandonment activities at an off-site location in accordance with local, state, and federal regulations.

3.4 FIELD QUALITY CONTROL

3.4.1 DOCUMENTATION AND QUALITY CONTROL REPORTS

Establish and maintain documentation and quality control reports for well abandonment to record the desired information and to assure compliance with contract requirements, including, but not limited to, the following:

3.4.1.1 WATER WELL ABANDONMENT AND DECOMMISSIONING REPORT

Well decommissioning or abandonment records must be completed in accordance with requirements of the State of New York and, as a minimum, include the information shown below.

A completed Water Well Abandonment and Decommissioning Report must be submitted to

Government and Site Engineer for approval. Upon receipt of approval, this report must be submitted to DEC’s Region 1 office.

A. Project name

B. Well number

C. Well location, depth, and diameter

D. Date of decommissioning or abandonment

E. Method of decommissioning or abandonment

F. All materials used in the decommissioning or abandonment procedure and the interval in which test materials were placed

G. Casing and/or other items left in hole by depth, description, and composition

H. Description and total quantity of grout used initially

I. Description and daily quantities of grout used to compensate for settlement

J. Water level prior to grouting and date measured

3.4.1.2 PROJECT PHOTOGRAPHS

Before, during, and after completion of work, take a minimum of three views of the well abandonment. Photographs must be 3-inch by 5-inch color prints. Mount the photographs and

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enclose back-to-back in a double face clear plastic sleeve punched to fit standard three ring binders. Each color print must show an information box. Submit digital copy of all photographs as well as color copy. The information box must include the project number, contract number, photographer, photograph number, data and time of photograph, description, and direction of view.

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