Section 02 65 00: Underground Storage Tank Removal
This Construction Standard covers the requirements for the removal and disposal of underground storage tanks and piping, backfill, products remaining in the tanks, contaminated soil and ground water, and related work in accordance with local, state, and federal regulations.
Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.
The Contractor will provide all labor, materials and equipment as necessary to complete all work as specified herein.
Work includes the removal and disposal of an underground storage tanks and piping, and excavation and disposal of contaminated backfill, soil and groundwater. In addition, the work will include the installation of any temporary fencing, barricade systems, or other means to keep the project site and work area safe and restricted from public access.
Perform work in accordance with local, Oregon OSHA, and Oregon DEQ regulations
The tank removal contractor, subcontractors, and personnel employed on the project shall furnish proof of and abide by the following as applicable:
DEQ Underground Storage Tank Rules
Fed-OSHA and OR-OSHA rules, including HAZWOPER Certification
Submit training certification statements for personnel performing work in accordance with DEQ’s licensed “Service Provider” requirements.
EXCAVATION AND MATERIAL HANDLING PLAN
Contractor or 3rd party consultant shall submit an Excavation and Material Handling Plan to OSU EH&S for approval.
The Contractor shall furnish all labor, materials, necessary permits, reports, and equipment to complete the work as defined in the project scope.
The plan shall address waste disposal that details transport and disposal methods for the: tank and piping, uncontaminated and contaminated backfill, soil and groundwater.
Contractor shall arrange for the transport and disposal of the tank, piping, contaminated and uncontaminated backfill, soil and ground water in accordance with local, State, and Federal laws and requirements. Components of the Plan should address:
Excavation: Describe the methods, means, equipment, sequence of operations and schedule to be employed in the excavation, transport, handling, and stockpiling of soil during underground tank removal and disposal operations.
Tank Removal: Describe methods, means, sequence of operations, and schedule to be employed in the pumping, cleaning, de-vaporizing, inspecting, removal, and disposal of underground storage tanks and piping.
Soil and Groundwater Removal: Describe the phases of handling the contaminated backfill, soil and ground water. Include methods of excavating, handling of contaminated material, safety precautions and disposal requirements.
Prior to commencing work, the Contractor is responsible for obtaining waste disposal approvals from DEQ, OSU EH&S and the local jurisdiction as applicable.
The Plan shall specify final destination and modes of transport for all materials removed from the site.
Contractor shall address over-excavation and groundwater removal plans, and soil and groundwater confirmation sampling based on consultant and OSU EH&S recommendations for site cleanup levels or regulatory standards set by DEQ.
SITE SAFETY AND HEALTH PLAN
The Contractor shall prepare a Site Safety and Health Plan (SSH Plan) in accordance with all applicable local, State and Federal laws and requirements for the work described herein.
The Contractor shall submit a Site Safety and Health Plan (SSH Plan) to OSU EH&S prior to commencing work. The SSH Plan will include:
A site map, indicating points of entry and access routes to the project site from adjacent streets.
A list of emergency phone numbers and points of contact for fire, hospital, police, ambulance, OSU EH&S, and other necessary contacts.
A route map that details the directions to the nearest emergency medical facility.
All personnel assigned to perform work as described herein have the responsibility to have and appropriately use the necessary personal safety equipment and protective clothing.
No one is permitted on the project site without the required and appropriate personal safety equipment and/or protective clothing.
All personnel and equipment shall be decontaminated as needed before exiting the project site.
All personnel working at a project site will have completed documented OSHA HAZWOPER training, as well as any additional training to ensure workers properly know how and when to use personal safety equipment/clothing.
FIRST AID AND EMERGENCY RESPONSE EQUIPMENT AND PROCEDURES
The appropriate emergency first aid equipment for treatment of exposure to site physical and chemical hazards shall be readily accessible.
The Contractor shall clearly post at the job site:
A list of emergency phone numbers and points of contact for fire, hospital, police, ambulance, OSU EH&S, and other necessary contacts
A route map that details the directions to the nearest emergency medical facility
EH&S shall be contacted immediately in the cases of accidents, unforeseen events, or any other incidents that need immediate attention due to a safety or health risks and/or concerns.
TEMPORARY CONTAINMENT OF EXCAVATED SOIL
EH&S shall designate and approve the location of any temporary soil containment area proposed for use by the Contractor.
The excavated soil shall be placed on an impervious barrier and covered with 10mil or greater polyethylene sheeting and shall be so constructed as to not allow any off-site discharge/migration via air, water, or any other means.
The area will be restored to a pre-project state upon completion of the project.
Soil and groundwater confirmation sampling for the purposes of environmental characterization and compliance with applicable regulatory standards will be performed by contractor or third party consultant per DEQ regulations. Contractor or third party consultant to coordinate sampling times with OSU EH&S.
Testing of the tank, piping, soil and ground water for purposes of waste characterization and disposal will be the responsibility of the Contractor.
The Contractor shall arrange for all required inspections in accordance with all applicable permits, and local, state and federal laws and requirements.
CLOSURE REPORT (SITE ASSESSMENT REPORT)
The Contractor shall provide EH&S a Closure Report that includes the field reports, records, inspections, laboratory reports, environmental sampling results, and other documents obtained and/or created during the completion of the work described herein.
The Closure Report shall contain a description of the site and work completed, including tank removal procedures, equipment used, dates work was performed, tanks and associated tank equipment, backfill, soil, and groundwater that was removed and disposed of.
The Report shall address/include at minimum:
Site plan showing location of tank and associated piping/equipment, surrounding features, and the limits of the excavation.
All paperwork documenting the proper disposal of the tank and piping, contaminated backfill, soil and ground water and any other supporting documents that are required to comply with local, state, and federal laws and regulations.
Environmental sampling results presented in table form and compared to applicable regulatory standards. These results should confirm the vertical and lateral extent of any contaminated soil and groundwater and should also confirm that any remaining soil and groundwater at the site meets applicable state and/or federal regulatory standards.
A site map showing the location of soil and groundwater samples that were collected and submitted for laboratory analysis during the tank removal and site closure process.
Completion of DEQ required tank closure reports. OSU EH&S may request additional information upon review of the Report.