1、07-11 02 65 00 - 1 SECTION 02 65 00 UNDERGROUND STORAGE TANK REMOVAL PART 1 GENERAL 1.1 DESCRIPTION: A. Underground Fuel Tank Liquid Removal: 1. Material (Liquid) Testing. 2. Removals and Disposal. 3. Certification of Contents and Disposal. B. Underground Fuel Tank Cleaning and Disposal: 1. Excavati
2、on of Tank. 2. Removals and Disposal. 3. Evacuation of Combustible Vapors. 4. Tank Cleaning. 5. Disassembling of Tank. 6. Certification for Proper Disposal of Tank. C. Contamination Assessment: 1. Soil Testing. 2. Contaminated Soil Disposal 3. Certification for Proper Disposal of Contaminated Soil.
3、D. Report: 1. Written report describing in detail the procedures used to remove the liquid from the underground storage tank, cleaning and removing of the underground storage tank, and disposal of the liquid residues. 2. Photographic documentation of the work, including lab and field results, and re
4、ceipts from the proper authority for the tank and residue disposal. 1.2 RELATED WORK: A. Section 01 45 29, TESTING LABORATORY SERVICES B. Section 02 41 00, DEMOLITION C. Section 31 20 00, EARTH MOVING D. Section 23 05 11, COMMON WORK RESULTS FOR HVAC AND STEAM GENERATION 1.3 QUALITY ASSURANCE: A. Un
5、derground fuel tank removal and disposal shall comply with the following: 1. United States Environmental Protection Agency (EPA), 40 CFR Part 280 and Part 281. 2. United States Environmental Protection Agency (EPA), Test Methods for Petroleum Hydrocarbons, SW-846 Method 8015. Provided by IHSNot for
6、ResaleNo reproduction or networking permitted without license from IHS-,-,-07-11 02 65 00 - 2 3. State of _ Department of Environmental Management Guidelines. 4. OSHA Standards 29 CFR Part 1910 and 1926.1128. 1.4 SUBMITTAL: A. Furnished detailed CADD generated submittals including: 1. Detailed plan
7、view 2. Piping removal diagrams 3. Control removal diagrams 4. Component diagrams including tank removal procedure 5. Detailed sequence of procedure 6. Local Fire Marshal requirement 7. Hazardous material plan for local VA management. 1.5 APPLICABLE PUBLICATIONS: A. The publications listed below for
8、m a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only. B. American Petroleum Institute (API): 1604-96(R2010) . Closure of Underground Petroleum Storage Tanks C. American Society of Testing Materials (ASTM): E1739-95(R2010)
9、Guide to Risk-Based Corrective Action (RBCA) Applied at Petroleum Release Sites E1912-98(R2004) Guide for Accelerated Site Characterization for Confirmed or Suspected Petroleum Releases E1943-98(2010) . Guide for Remediation of Ground water by Natural Attenuation at Petroleum Release Sites D. Nation
10、al Fire Protection Agency (NFPA): 30-08 Flammable and Liquid Combustible Code 70B-10 . Recommended Practice for Electrical Equipment Maintenance 326-10 . Standard for Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair 329-10 . Recommended Practice for Handling Release of Flammable L
11、iquids and Gases 1.6 PROJECT SITE CONDITIONS: Do not close or obstruct streets, sidewalks or drives without permission and approval of the VA. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-07-11 02 65 00 - 3 PART 2 - PRODUCTS (NOT USED) PART 3 - EX
12、ECUTION 3.1 GENERAL: A. Remove underground storage tank, liquid, and associated work, including soil removal as specified and indicated on the drawings. B. Restore the excavated area with new materials as specified to match adjacent (existing) surfaces. 3.2 UNDERGROUND STORAGE TANK LIQUID REMOVAL: A
13、. Provide samples of liquids from the underground fuel storage tank to a qualified state certified hazardous waste testing facility for laboratory analysis and approval for the liquid disposal and disposal location. B. Remove the liquid from the tank for disposal prior to removing the tank from the
14、ground. C. Provide documentation of the liquid removal and its disposal in a final report to the VA. 3.3 UNDERGROUND STORAGE TANK CLEANING AND DISPOSAL: A. Tank shall be reviewed and certified clean by local Fire Marshal. B. Remove the tank from the ground, place it on the ground adjacent to removal
15、 location, and secure it prior to cleaning. C. Measure levels of combustible vapors and oxygen, and initiate ventilation of the tank, if needed: 1. Ventilate tank using a small gas exhauster until the vapor concentration is reduced to 10 percent or less of the lower explosive limit. 2. Oxygen conten
16、t shall range from 19.5 to 23.5 percent. 3. Cut access ports for cleaning into tank after vapor and oxygen concentrations have met the requirements noted above. D. Cleaning of the tank shall include mopping, scraping, and sweeping the interior of the tank. E. Collect, contain and place residuals in
17、a United States Department of Transportation (DOT) approved type 17H, 200 L (55 gallon) capacity drum, for transporting and disposal. F. Ensure final vapor and oxygen concentration are within the requirements noted above before proceeding to cut and dismantle the tank for its disposal. G. Remove dis
18、mantled tank to an approved disposal facility. H. Obtain disposal facility receipts noting proper tank disposal. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-07-11 02 65 00 - 4 3.4 REMOVED TANK AREA ASSESSMENT: A. Collect five soil samples from th
19、e removed underground storage tank area. Take one sample from each of the sidewalls, and one sample from the base. Containerize the samples in glass sample jar(s), seal with Teflon-coated lids, and place the jar on ice. Deliver samples with completed chain-of-custody documentation to the laboratory.
20、 Laboratory shall analyze each sample for Total Petroleum Hydrocarbon (TPH) concentrations using a modified EPA method 8015. B. Site Restoration: See Section 31 20 00, EARTH MOVING. 3.5 CONTAMINATED SOIL: A. When soil assessments reveal evidence of leakage or spillage of hydrocarbons at levels above
21、 those established by the state department of environmental management for underground storage tank closures (100 parts per million), collect additional soil samples beyond the boundaries of the original tank location (Tank boundary is defined as tank enclosure in a right angle that touches the circ
22、umference of the tank). Any volume difference between the tank and the enclosure shall not to exceed 100 cubic yards of soil removed. Any work beyond this boundary shall be considered extra and shall be based on unit pricing. B. Continue the soil contamination assessment testing around the tank unti
23、l the contamination level is within acceptable level, less than 100 parts per million. C. Remove all contaminated soil from the site and haul it to an approved sanitary landfill for proper disposal. - - - END - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
