USACE / NAVFAC / AFCESA / NASA UFGS-33 65 00 (April 2006)
------------------------------
Preparing Activity: NAVFAC Replacing without change
UFGS-13219 (August 2004)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 33 65 00
CLEANING PETROLEUM STORAGE TANKS
04/06
NOTE: This guide specification covers the requirements for clean-up of the
interior of concrete or steel tanks used for petroleum storage.
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in respective project, whether
or not brackets are present.
Comments and suggestions on this guide specification are welcome and should
be directed to the technical proponent of the specification. A listing of technical
proponents, including their organization designation and telephone number, is
on the Internet.
Recommended changes to a UFGS should be submitted as a Criteria Change Request
(CCR).
NOTE: The following information shall be shown on the project drawings:
1. Site plan of project area showing surrounding area with tanks and other
construction which affect safety distances from the tank to be cleaned.
2. Plan and elevation of tank to be cleaned with associated piping and appurtenances.
PART 1 GENERAL
1.1 REFERENCES
NOTE: This paragraph is used to list the publications cited in the text of
the guide specification. The publications are referred to in the text by basic
designation only and listed in this paragraph by organization, designation,
date, and title.
Use the Reference Wizard's Check Reference feature when you add a RID outside
of the Section's Reference Article to automatically place the reference in the
Reference Article. Also use the Reference Wizard's Check Reference feature
to update the issue dates.
References not used in the text will automatically be deleted from this section
of the project specification when you choose to reconcile references in the
publish print process.
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.
[AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)ANSI Z88.2(1992) Respiratory Protection][AMERICAN PETROLEUM INSTITUTE (API)API RP 2003(2008) Protection Against Ignitions Arising out of Static, Lightning, and Stray CurrentsAPI RP 500(1997; Errata 1998; R 2002) Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class 1, Division 1 and Division 2API Std 2015(2001) Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks][NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 306(2008) Control of Gas Hazards in VesselsNFPA 70(2007; AMD 1 2008) National Electrical Code - 2008 Edition][NATIONAL INSTITUTE FOR OCCUPATIONAL SAFETY AND HEALTH (NIOSH)NIOSH 99-109(Latest) Certified Equipment List][U.S. ARMY CORPS OF ENGINEERS (USACE)EM 385-1-1(2008) Safety and Health Requirements Manual][U.S. DEPARTMENT OF DEFENSE (DOD)MIL-A-22262(Rev B; Am 2) Abrasive Blasting Media Ship Hull Blast CleaningMIL-PRF-680(Rev B) Degreasing Solvent][U.S. GENERAL SERVICES ADMINISTRATION (GSA)FS O-D-1276(Rev B) Disinfectant-Detergent, General Purpose (Pine Oil)][U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)29 CFR 1910.1025Lead29 CFR 1910.1028Benzene29 CFR 1910.120Hazardous Waste Operations and Emergency Response29 CFR 1910.1200Hazard Communication29 CFR 1910.134Respiratory Protection29 CFR 1910.146Permit-required Confined Spaces29 CFR 1926.55Gases, Vapors, Fumes, Dusts, and Mists40 CFR 260Hazardous Waste Management System: General40 CFR 261Identification and Listing of Hazardous Waste40 CFR 262Standards Applicable to Generators of Hazardous Waste40 CFR 263Standards Applicable to Transporters of Hazardous Waste40 CFR 264Standards for Owners and Operators of Hazardous Waste Treatment, Storage, and Disposal Facilities40 CFR 265Interim Status Standards for Owners and Operators of Hazardous Waste Treatment, Storage, and Disposal Facilities40 CFR 266Standards for the Management of Specific Hazardous Wastes and Specific Types of Hazardous Waste Management Facilities][UNDERWRITERS LABORATORIES (UL)UL 844(2006; Rev thru Nov 2008) Standard for Electric Lighting Fixtures for Use in Hazardous (Classified) Locations]1.2 SUBMITTALS
NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL
PROCEDURES and edit the following list to reflect only the submittals required
for the project. Submittals should be kept to the minimum required for adequate
quality control.
A “G” following a submittal item indicates that the submittal requires Government
approval. Some submittals are already marked with a “G”. Only delete an existing
“G” if the submittal item is not complex and can be reviewed through the Contractor’s
Quality Control system. Only add a “G” if the submittal is sufficiently important
or complex in context of the project.
For submittals requiring Government approval on Army projects, a code of up
to three characters within the submittal tags may be used following the "G"
designation to indicate the approving authority. Codes for Army projects using
the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO"
for District Office (Engineering Division or other organization in the District
Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project
Office. Codes following the "G" typically are not used for Navy, Air Force,
and NASA projects.
Choose the first bracketed item for Navy, Air Force and NASA projects, or choose
the second bracketed item for Army projects.
Government approval is required for submittals with a "G" designation; submittals not having a "G" designation
are [for Contractor Quality Control approval.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for the Government.] The following shall
be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-03 Product Data
Cleaning agents
Gasoline-oil-resisting rubber gloves and boots
Cotton coveralls and hard hat
Respiratory protective equipment
Disinfectant
Abrasive for blasting
Submit identification for the items by designated name, specification number, project contracting
number, and intended use.
SD-06 Test Reports
Blasting abrasive test
Tank contents tests
Monitoring Results[; G][; G, [_____]]
SD-07 Certificates
Qualifications of Marine Chemist
Qualifications of Certified Industrial Hygienist (CIH)
Testing laboratory
Safety plan
Work plan
Hazardous waste disposal plan
Tank certification of safety
[Plan for pretreatment of discharge to sewer[; G][; G, [_____]]]
Training certification
Respiratory protective equipment
Breathing-air supply source
Combustible gas indicator
[Lead-in-air analyzer]
[Hydrogen-sulfide (H2S) indicator]
[Benzene indicator]
Oxygen meter
Velometers
Lighting
First aid kit
Tank exhaust blower
Submit certificates for the items listed. Where equipment or materials are specified to conform
with the standards of organizations, such as National Institute for Occupational Safety and
Health (NIOSH), Underwriters Laboratories (UL), and American Petroleum Institute (API), include
a label or listing indicating compliance. In lieu of the label or listing, the Contractor may
submit a test report from an approved testing organization stating that the item has been tested
in accordance with the specified organization's test methods and that the item conforms with
the organization's standard or code.
SD-08 Manufacturer's Instructions
Tank cleaning agents
Submit material safety data sheets for materials to be used at the job site, in accordance
with 29 CFR 1910.1200.
SD-11 Closeout Submittals
NOTE: Delete if hazardous waste is to be disposed of by the Government. Designer
must verify that Government disposal is practical and make all arrangements
for Government disposal.
Safety permits
Submit copies of permits required to comply with local, State, and Federal regulations.
1.3 DEFINITIONS
1.3.1 Certified Industrial Hygienist (CIH)
As used in this section, refers to an Industrial Hygienist employed by the Contractor and is certified by the
American Board of Industrial Hygiene in comprehensive practice.
1.3.2 Marine Chemist
The holder of a valid Certificate issued by the National Fire Protection Association in accordance with the "Rules
for Certification of Marine Chemists," establishing him as a person qualified to determine whether construction,
alteration, repair, or shipbreaking of vessels, which may involve hazards covered by NFPA 306 can be undertaken
with safety.
1.3.3 Hazardous Areas
Hazardous areas shall be defined as any area within 30 meters 100 feet of active aboveground storage tanks, areas
within 30 meters 100 feet of leaking sections of fuel pipelines or other vapor sources, areas within 60 meters
200 feet of the downwind side of potential vapor emission sources (i.e., pressure-vacuum vents or open vents
on active tanks, leaking sections of pipelines), areas within existing tanks, and areas within a dike.
1.3.4 Hot Work Operations
Hot work, for work covered by this section, includes: flame heating, welding, torch cutting, brazing, carbon
arc gouging, or any work which produces heat, by any means, of 200 degrees C 400 degrees F or more; or in the
presence of flammables or flammable atmospheres, other ignition sources such as spark or arc producing tools
(except steel hand tools) or equipment, static discharges, friction, impact, open flames or embers, nonexplosion-proof
lights, fixtures, motors or equipment.
1.3.5 Personal Monitoring
NOTE: Consult with cognizant industrial hygienist regarding deletion if no
lead hazard is present in tanks.
Sampling of lead concentrations within the breathing zone of an employee to determine the 8-hour time weighted
average concentration in accordance with 29 CFR 1910.1025. Samples shall be representative of the employee's
work tasks. Breathing zone shall be considered an area within a hemisphere, forward of the shoulders, with a
radius of 150 to 225 mm 6 to 9 inches and the center at the nose or mouth of an employee.
1.3.6 Reproductive Hazard
A reproductive hazard is defined as any occupational stressor (biological, chemical, or physical) that has the
potential to adversely affect the human reproductive process. For example, it is well known that central nervous
system problems often occur in the offspring of mothers exposed to organic mercury during pregnancy. Therefore,
based on the example cited, organic mercury can be classified as a reproductive stressor. Many reproductive
hazards also cause other adverse health effects; for example, ethylene oxide is also known to be a carcinogen
(i.e., produces cancer). Certain reproductive stressors can also have adverse effects on the male reproductive
system. (If requested by the Contractor, the Contracting Officer will make available the Navy's standard on
reproductive hazards.)
1.4 QUALITY ASSURANCE
1.4.1 Modification of References
NOTE: Delete brackets and words within brackets if there is no leaded fuel
in any tank.
Except as modified herein, the work shall conform with the recommendations of API RP 500 and API RP 2003 and
API Std 2015. Where the word "should" appears in these publications, substitute "shall."
1.4.2 Copies of Standards
NOTE: Delete brackets and words within brackets if there is no leaded fuel
in any tank.
Furnish four copies of API RP 500 AND API RP 2003 and API Std 2015.
1.4.3 Safety Permits and Equipment
Acquire safety permits (specified by the facility safety authorities) and necessary safety equipment.
1.4.4 Regulatory Requirements
a. Obtain permits required to comply with local, State, and Federal regulations.
b. Hazardous wastes, such as water, sediment, and sludge, shall be packaged, labeled, stored,
transported, treated and disposed of in accordance with 40 CFR 260 through 40 CFR 266 and State
and local regulations. Transporters, sorters, treaters and disposers must be certified and
have EPA ID numbers. Payment for disposal of hazardous waste will not be made until a completed
hazardous waste manifest from the treatment or disposal facility is returned, and a copy furnished
to the Government. [Deliver hazardous waste to the Government for disposal [as directed by
the Contracting Officer].]
1.4.5 Medical Examinations
NOTE: Delete if there is no lead hazard.
Before exposure to lead-contaminated fuel tank and at the completion of the work, provide workers with a comprehensive
medical examination as required by 29 CFR 1910.1025 and 29 CFR 1910.1200. The initial examination will not be
required if adequate records show that employees have been examined as required by 29 CFR 1910.1025 within the
last year and the blood lead levels did not exceed 30 micrograms per 100 grams of whole blood.
1.4.6 Medical Records
NOTE: Delete if there is no lead hazard.
Maintain complete and accurate medical records of employees for a period of at least 40 years or for the duration
of employment plus 20 years, whichever is longer.
1.4.7 CIH Responsibilities
a. Certify training.
b. Review and approve safety plans and work plan for conformance to the applicable referenced
standards.
c. Inspect tank cleaning work for conformance with the approved safety and work plans.
d. Direct monitoring.
e. Ensure work is performed in strict accordance with specifications at all times.
f. Ensure hazardous exposure to personnel and to the environment are adequately controlled
at all times.
1.4.8 Training
NOTE: Delete 29 CFR 1910.1025 if there is no lead hazard.
Train each employee performing tank cleaning, waste disposal, and air sampling operations prior to the time of
initial job assignment, in accordance with API Std 2015, 29 CFR 1910.120, 29 CFR 1910.134, [29 CFR 1910.1025],
and 29 CFR 1910.1200. The training shall also include counseling of each employee on reproductive hazards involved
in the work.
1.4.9 [Respiratory Protection Program
NOTE: Delete if there is no lead hazard.
a. Furnish each employee required to wear a negative pressure respirator or other appropriate
type with a respirator fit test at the time of initial fitting and at least every 6 months thereafter
as required by 29 CFR 1910.1025 where lead exposure is involved. Fit testing is not required
for positive pressure respirators.
b. Establish and implement a respiratory protection program as required by ANSI Z88.2, 29 CFR 1910.134
, and 29 CFR 1926.55. Also comply with 29 CFR 1910.1025 when exposure to lead is involved.]
1.4.10 Pre-Construction Conference
Along with the CIH, marine chemist, or gas-free engineer, meet with the Contracting Officer to discuss in detail
the tank cleaning work plan, including work procedures and precautions for the work plan.
1.4.11 Certificates
1.4.11.1 Qualifications of Marine Chemist
Submit name, address, and telephone number of the marine chemist selected to perform the required duties. Submit
documentation that the marine chemist is certified by the National Fire Protection Association, including the
certificate number and date of certification or recertification. The NFPA certification will be acceptable for
non-ship work on this contract.
1.4.11.2 Qualifications of Certified Industrial Hygienist (CIH)
Submit name, address, and telephone number of the CIH selected to perform responsibilities in paragraph entitled
"CIH Responsibilities." Provide previous experience of the CIH. Submit proper documentation that the Industrial
Hygienist is certified by the American Board of Industrial Hygiene in comprehensive practice, including certification
number and date of certification/recertification. The CIH shall be familiar with the hazards involved in fuel
systems work.
1.4.11.3 Testing Laboratory
Submit the name, address, and telephone number of the testing laboratory selected to perform the monitoring,
testing, and reporting of airborne concentrations of lead and other contaminants. Provide proper documentation
that persons performing the analysis have been judged proficient by successful participation within the last
year in the National Institute for Occupational Safety and Health (NIOSH) Proficiency Analytical Testing (PAT)
Program. The laboratory shall be accredited by the American Industrial Hygiene Association (AIHA). Provide
AIHA documentation along with date of accreditation/reaccreditation.
1.4.11.4 Safety Plan
Submit a safety plan within 45 calendar days after contract award and 30 days prior to commencing work. [The
safety program shall be reviewed and approved by the safety/health officer of the facility.] The safety plan
shall meet OSHA requirements and address the following:
a. Identification and evaluation of the hazards and risks associated with each site being studied,
including reproductive hazards and precautionary measures to be followed by workers for all
hazards.
b. Names and qualifications of each Contractor's representative in charge of the work and present
at the job site when tank cleaning and repair work will be performed.
c. Identification of supervisory personnel and alternates responsible for site safety/response
operations.
d. Determination of levels of personal protection to be worn for various site operations.
e. List of equipment with adequate nomenclature by item, that will be used at the job site
and the date and location where this equipment can be inspected by the Contracting Officer.
f. Establishment of work zones (exclusion area, contamination area, and support area).
g. Establishment of a tank entry and work permit program in accordance with 29 CFR 1910.146
and EM 385-1-1.
h. Establishment of decontamination methods and procedures.
i. Determination of the number of people required to enter the contamination zones during the
initial entries and subsequent operations.
j. Establishment of emergency procedures, such as: escape routes, fire protection, signals
for withdrawing work parties from site, emergency communications, wind indicators, including
Navy notification.
k. Identification and arrangements with nearest medical facility for emergency medical care
for both routine-type injuries and toxicological problems. Submit name, location, and telephone
number of this medical facility.
l. Establishment of continual air and personnel monitoring procedures.
m. Establishment of procedures for obtaining and handling potentially contaminated samples.
n. Identification of medical monitoring program, including respirator medical qualification
examination for each individual at the work site.
o. Identification of training plan to be instituted, including contents of 29 CFR 1910.1200
and 29 CFR 1910.134; its training contents; and instructor with appropriate training certification
. Training plan shall also include counseling to each employee on reproductive hazards.
p. Establishment of a respiratory protection program conforming to 29 CFR 1910.134 and ANSI Z88.2
.
q. Establishment of a hazard communication program (29 CFR 1910.1200).
1.4.11.5 Work Plan
NOTE: Data for these paragraphs should be obtained from the Commanding Officer
of the individual Naval facility having tanks for cleaning.
The shut down or interruption to normal operations or traffic shall be listed on the progress schedule and submitted
[to the Contracting Officer].
NOTE: Delete if there is no hazardous waste in the project. Edit if hazardous
waste is to be disposed of by the Government. Designer must verify that Government
disposal is practical and make all arrangements for Government disposal.
1.4.11.6 Hazardous Waste Disposal Plan
Prepare a Hazardous Waste Disposal Plan and submit within [45] [_____] calendar days after contract award for
approval by the Contracting Officer, or if there are no hazardous wastes indicated by Government tests, submit
the plan [21] [_____] days after the Contractor's tests indicate hazardous wastes. The Hazardous Waste Disposal
Plan shall comply with applicable requirements of Federal, State, and local hazardous waste regulations and shall
address the following:
a. Identification of hazardous wastes associated with the work, including a sampling and testing
plan for each waste stream, the purpose of each test, and the rationale for evaluating the test
results. Indicate the representative sampling and specific testing methods, number of samples,
and the name and qualifications of the testing laboratory.
b. Estimated quantities of wastes to be disposed in the cleaning of each tank and a description
of arrangements made for storage and disposal.
c. Names and qualifications of each Contractor that will be transporting, storing, treating,
and disposing of the wastes. Include the facility location and a 24-hour point of contact.
Furnish two copies of [EPA] [State] [and] [local] hazardous waste [permit applications] [permits]
[and] [EPA Identification numbers].
d. Names and qualifications (experience and training) of personnel who will be working on-site
with hazardous wastes.
e. List of waste handling equipment to be used in performing the work, to include cleaning,
treatment, volume reduction, and transport equipment.
f. Spill prevention, containment, and cleanup contingency measures to be implemented.
g. Work plan and schedule for waste removal and disposal.
h. Cost for hazardous waste disposal according to this plan.
1.4.11.7 Tank Certification of Safety
Submit certification, from an NFPA certified "Marine Chemist" or CIH stating that tank is safe for hot work and
that special precautionary measures have been taken for workers to enter the tank to perform the work.
1.4.11.8 Training Certification
NOTE: Delete words in bracket if there is no leaded gasoline hazard.
Submit certifications signed and dated by the CIH specified in the testing plan and by each employee stating
that the employee has received training on work practices and received counseling on and fully understands the
reproductive hazards involved with lead and toulene exposure and the work.
1.4.11.9 Hazardous Waste Permits
Submit copies of [EPA] [State] [and] [local] hazardous waste [permit applications] [permits] [and] [EPA Identification
numbers] of the transporter, treatment, storage and disposal facility that will be accepting hazardous waste.
Include the facility location and a 24-hour point of contact.
1.4.11.10 Non-Hazardous Waste Permits
Submit [EPA] [State] [local] permits for disposal site for non-hazardous residues and wastes.
1.4.12 Test Results
1.4.12.1 Required Test Reports
Submit test results required by MIL-A-22262, for blasting abrasive. Submit contractor's independent tests of
tank contents (water, sediment, and sludge).
1.4.12.2 Air Monitoring
Submit monitoring results to the Contracting Officer within 2 working days after the samples are taken, signed
by the testing laboratory employee performing the air monitoring, the employee that analyzed the sample, and
the CIH.
1.5 DELIVERY AND STORAGE
Deliver equipment and materials to the site in an undamaged condition bearing the manufacturer's name and brand
designation. Store equipment and materials off the ground to provide proper ventilation, drainage, and protection
against dampness. Replace defective and damaged equipment and materials.
1.6 JOB CONDITIONS
1.6.1 Ventilation
Maintain a vapor-free condition throughout the course of the work inside the tank. The air movers shall be non-sparking,
explosion-proof, electrically operated or air-driven exhaust type. A rate of one air change per hour shall be
the lowest acceptable rate, for tanks under 3600 kL 30,000 BBL. For tanks greater than 3600 kL 30,000 BBL,
use 4700 L/s 10,000 cfm. Air movers shall be kept in operation whenever workers are in the tanks; except the
air movers shall be shut down 15 minutes before taking tests.
1.7 SCHEDULING AND SEQUENCING
1.7.1 Sequence of Primary Phases of the Cleaning Procedure
a. Planning the operations
b. Preparation for cleaning
c. Vapor-freeing of the tank
d. Cleaning the tank
e. Clean-up, residue disposal, inspection, and acceptance.
1.7.2 General Scheduling
Complete the work specified in this section before any other work in the tank is started. The work includes
the complete interior cleaning of the storage tanks.
PART 2 PRODUCTS
2.1 MATERIALS
2.1.1 Cleaning Agents
NOTE: Coordinate listing of cleaning agents with paragraph entitled "Washing"
on cleaning method.
a. Detergent: FS O-D-1276.
b. Solvent: MIL-PRF-680, Type II, minimum flashpoint of 60 degrees C.
c. Approved commercial cleaning agent.
2.1.2 Abrasive
2.1.2.1 Abrasive for Blasting
Provide sharp, washed, salt-free [, angular] abrasive material, free from feldspar and other constituents that
tend to break down and remain on the surface. Abrasive shall not contain magnetic materials and shall conform
to MIL-A-22262, [except that Mohs' hardness shall be 7 to 9] [and [_____]].
2.1.2.2 Recycled Abrasive
Screen and air wash abrasive that is recycled at the job site, to remove dirt and fines. Add new abrasive so
that the combined new and recycled abrasive mixture meets specified abrasive requirements for chemical composition,
moisture, friability, silica, anchor pattern and oil content. Do not recycle abrasive which has picked up toxic
or hazardous material. Do not recycle nickel slag.
2.2 EQUIPMENT
Furnish necessary clothing and equipment for the work and protection of people entering the tank. Electrical
equipment and wiring shall be in accordance with NFPA 70, Class 1, Group D, Division 1. Provide any item or
items for the protection of these people including but not limited to the following:
a. Gasoline-Oil-Resisting Rubber Gloves and Boots: Gauntlet type and conductive type respectively
(acid-proof rubber is an acceptable material); furnished for each person entering or working
inside the tank or handling sludge materials on the exterior of the tank, plus one extra pair
each for emergency use.
b. Cotton Coveralls and Hard Hat: Light colored; one change per person per day, and an adequate
supply of chemical-resistant disposable coveralls to be worn over cotton coveralls.
c. Respiratory Protection: Provide one of the following types of NIOSH-approved respiratory
protective equipment for each person working inside the tank, plus one extra for emergency use.
NIOSH 99-109 listing constitutes NIOSH approval.
(1) Self-contained breathing apparatus with a full facepiece operated in a positive pressure
mode.
(2) A combination respirator which includes a Type C supplied-air respirator which a full facepiece
operated in a positive pressure mode and an auxiliary positive pressure self-contained breathing
apparatus. [Provide and use two-way communication equipment when cleaning underground tanks
[larger than 190 kL 50,000 gallons capacity] [or] [where manhole accesses are deeper than 3
meters 10 feetfrom the working level].]
(3) The CIH may specify airline (Type C) respirator in place of those specified above; however,
the decision shall be based on the results of personal monitoring.
(4) Use Type CE respirator for abrasive blasting inside the tank.
(5) CIH shall specify respiratory protection if required for personnel handling sludge material
outside of the tank.
d. Safety Harness: For each person working inside tank, plus one extra for outside the tank.
e. 13 mm One half Inch Diameter Life Rope of Required Length: For each person working inside
the tank.
f. Breathing-Air Supply Source: 29 CFR 1910.134.
g. Combustible Gas Indicator [,Lead-in-Air Analyzer] [, Hydrogen-Sulfide (H2S) Indicator] [,
Benzene Indicator] and Oxygen Meter. [Recommend a portable gas chromatograph or other more
accurate instrument for the benzene indicator.]
h. Shovels, Buckets, Brooms, Wrenches, Scrapers, Squeegees, Wire Brushes, Scrub-Brushes, Ladders,
Staging, and Other Tools: Do not use brooms or brushes that have plastic or synthetic bristles.
i. Lighting: UL 844, explosion-proof, minimum 540 lx 50 footcandle, floodlight type, or Mining
Enforcement and Safety Administration (MESA) approved, explosion-proof, portable battery-powered
light.
j. Air Movers for Tank Ventilation: Explosion proof electrically operated or air driven.
Nonferrous fan blades. Use velometersfor measuring velocity.
k. Disinfectant for Cleaning Face Masks: Cleaner-sanitizer for cleaning and disinfecting respirator
facepieces as specified in ANSI Z88.2.
l. Soap for Personnel Washing: Non-phosphate type.
m. A.B.C. Fire Extinguishers: UL listed 2A: 40B: C, 2A: 20B: C, or 4A: 30B: C; minimum
7 kg 15 pound capacity.
n. First Aid Kit: One 16-unit kit for each 25 persons.
PART 3 EXECUTION
3.1 PROJECT CONDITIONS
3.1.1 Cutting Tank Access Holes
NOTE: Use for tanks without manholes. Modify a appropriate, but ensure vapor-freeing
and cold cutting.
Tanks in this project may not have manholes. A hole of suitable size may be cut in the tank to gain access to
the tank interior. Vapor-free tank and perform preliminary cleaning before cutting tank. Perform tank cutting
using cold processes. No hot work in cutting shall be permitted.
3.1.2 Permission for Each Entry Into a Tank
Obtain written permission from the Contracting Officer prior to each entry into a tank. Permission will be granted
only under the following conditions:
a. The Contractor's qualified supervisor is present.
b. The Contractor's personnel have been briefed by the supervisor on the procedure and role
of each employee in the event of an emergency.
c. Required equipment is approved and properly located.
d. Personnel are properly equipped with properly fitted protective equipment and have received
adequate training from a qualified instructor.
e. The entire area adjacent to the tank is secured.
f. A minimum of two persons outside and two or more persons inside of each tank are provided
at all times during cleaning operations.
NOTE: Lead limit of 0.050 milligram per cubic meter is consistent with 29 CFR
1910.1025.
g. Tank air is monitored and corrective action is taken to ensure that the vapor concentration
is less than 10 percent of the lower flammable limit (LFL) [, lead-in-air is less than 0.050
milligrams per cubic meter] [, hydrogen sulfide is less than 10 ppm permissible exposure level
(PEL)] [, benzene is less than one ppm PEL] and oxygen content is a minimum of 19.5 percent.
h. An NFPA certified "Marine Chemist" or CIH has certified that the tank is safe for hot work,
and that the required special precautionary measures have been taken due to the potential health
hazard to the worker that still exists, even when the vapor concentration is well below the
LFL. The Contractor shall be responsible for reviewing the record drawing(s) of the tank to
be cleaned.
i. People entering the area leave smoking materials such as cigarettes and flame-producing
devices at a previously determined location.
j. When work involves handling and disposal of hazardous waste, the Contractor has a copy of
40 CFR 260, 40 CFR 261, 40 CFR 262, 40 CFR 263, 40 CFR 264, 40 CFR 265, and 40 CFR 266 in his
possession.
k. Permit only personnel authorized in the safety plan within 100 feet of the tank perimeter.
3.1.3 Traffic Control
Direct traffic minimum 60 meters 200 feet away from the tank cleaning area. Set up road blocks and warning signs.
Do not operate vehicles in hazardous areas.
3.1.4 Lavatory Facilities
NOTE: Obtain data for these paragraphs from the Commanding Officer of the individual
Naval facility having tanks for cleaning.
NOTE: Delete brackets and words within brackets if there is no leaded fuel
in any tank.
Arrange for lavatory and toilet facilities [and, in the case of tanks for leaded fuel, provide showers for bathing].
3.1.5 Miscellaneous
Ensure that the manufacturers have labelled containers holding products involving hazards in use or storage,
in accordance with 29 CFR 1910.1200. Label containers used to store, transport, or dispose of hazardous waste
in accordance with 40 CFR 260, 40 CFR 261, 40 CFR 262, 40 CFR 263, 40 CFR 264, 40 CFR 265, and 40 CFR 266[and
State Regulations]. Remove small objects of ferrous metal within the working areas to prevent the accidental
striking of a spark. Place equipment upwind of tank openings at highest elevation possible; do not place in a
spot lower than the surrounding terrain. Review drawings of the tank to be cleaned and brief workers on the
location of pits, sumps, piping, or other tank appurtenances which could be hazardous to personnel. Provide floodlights
to illuminate the work area without the need for battery operated handlights. Provide scaffolding, platforms,
and ladders for secure, safe accessibility to tank surfaces. Install electrical equipment in accordance with
API RP 500. Provide floodlights to illuminate the work area without the need for battery operated handlights.
Do not use artificial lights inside tank until the tank is vapor-free. [Unless otherwise approved by the Contracting
Officer, do not heat tanks during winter to provide personnel comfort or melt ice.]
3.1.5.1 Grounding and Bonding for Equipment
Provide grounding and bonding for equipment which may generate static electricity [, including air hose to sandblast
nozzle]. Do not pass the air hose through an area where flammable vapors may exist.
3.1.5.2 Fire Extinguishers
NOTE: Coordinate with the local fire department to determine the minimum quantities
of fire extinguishers for each specific job.
Furnish [two] [_____] carbon-dioxide fire extinguishers of minimum 7 kg 15 pounds capacity each, in the immediate
vicinity of the work. Provide a continuous fire watch. CAUTION: Do not discharge high pressure carbon dioxide
extinguishers where explosive vapors exist since the discharge can cause a spark which will ignite the vapors.
3.1.5.3 Disconnection Pipelines
Disconnect pipelines connected to the tank. Insert a solid-plate blind flange between two flanges near the tank,
or remove a valve or piece of pipe and install a blind flange to prevent flammable material from entering the
tank. [For underground tanks where connected pipelines are buried, blind off the pipelines at the nearest valve
box.] Blind flanges shall be of sufficient strength to withstand pressure which might be exerted by the material
being blanked off, and shall be gasketed on both sides if blind flange is inserted between two flanges. CAUTION:
Do not disconnect piping or valves until it is certain the line has been emptied of fuel.
3.1.5.4 Removal of Ignition Sources
Remove sources of ignition from the cleaning area. Do not permit ignition producing devices, including matches,
lighters or cigarettes, within 30 meters 100 feet upwind and 60 meters 200 feet downwind of a tank, or inside
the tank farm, or within the tank firewall, whichever is farther.
3.1.5.5 Survey of Hazardous Areas
Carefully survey the entire area around the tank to be cleaned to ensure that there are no vapors present in
the pit, low places, or hazardous areas and that all unauthorized personnel are cleared from the area. Ensure
that there is no possibility of anyone smoking in the immediate vicinity. Hazardous areas are defined as follows:
a. Interior of tanks.
b. Areas within 30 meters 100 feet from points having flammable vapor emissions which, for
example, are from the exhaust manholes of tanks under repair, open vents or pressure vacuum
vents (breather valves) of active tanks in the vicinity of tanks under repairs or cleaning.
CAUTION: Allowance shall be made for 6 or more km/h 4 or more miles per hour winds by increasing
the size of the hazardous area to a minimum of 60 meters 200 feet on the downward side.
[c. For aboveground tanks, all areas within a common impoundment dike up to the height of the
dike walls and within 3 meters 10 feet in all directions of the exterior surfaces of tank shell
and roof].
3.1.5.6 Exit from a Tank During Emergencies
To permit quick, free exit from a tank during emergencies, keep the area around the tank openings and emergency
routes clear of obstructions.
3.2 INSPECTION
3.2.1 Inspection of Equipment
3.2.1.1 Respirators
Respirator users shall inspect their respirators in strict accordance with the instructions provided by the manufacturer.
3.2.1.2 Air Hose from Breathing-Air Supply
If air line respirators are used, ensure that:
a. There are no breaks in outside covering;
b. Condition of gaskets is good;
c. Connections are tight; and
d. There are no restrictions in the hose.
3.2.1.3 Safety Harness and Life Line
Ensure that:
a. There is no frayed or weak material; and
b. Condition of harness is good.
3.2.1.4 Breathing-Air Supply Source
Ensure:
a. Good working condition; and
b. Location in vapor-free area.
c. Compliance with 29 CFR 1910.134 for breathing air quality, frequency of air analysis, and
presence of safety devices.
d. Backup air supply source.
3.2.1.5 Monitoring Equipment
Calibrate each day before use:
a. Combustible gas indicator
b. Oxygen meter
[c. H2S Indicator]
[d. Lead-in-Air Analyzer]
3.2.1.6 Other Equipment
Ensure:
a. Proper grounding and bonding;
b. Explosion-proof motors; and
c. Explosion-proof lighting.
3.2.2 Personnel Inspection
3.2.2.1 Clothing
Personnel for Proper Attire Commensurate with Hazards Involved: Check for:
a. Clean clothing in good condition (wear freshly laundered clothing at the beginning of the
job and at the start of each workday thereafter).
b. Boots and gloves of approved type and in good condition.
3.2.2.2 Breathing-Air Supply
If air line respirators are used, ensure that air is supplied to the facepiece at a rate of 2 to 7 L/s 4 to 15
cfm. If self-contained breathing apparatus are use, ensure sufficient number of full replacement cylinders are
available to last the duration of the job.
3.2.2.3 Harness and Lifeline
Harness and lifeline shall be in good condition and properly attached.
3.2.2.4 Gum or Tobacco Chewing
Ensure that gum or tobacco chewing is prohibited.
3.2.2.5 Physical Defects or Injuries
Ensure that people have no physical defects or injuries which may prevent their wearing respirators or which
may cause rescue to be difficult. No beards, sideburns, or large mustaches shall be allowed on people who must
wear respirators.
3.2.2.6 Alcoholic Beverages and Drugs
Ensure that people entering the tank are not under influence of alcoholic beverages and drugs.
3.2.2.7 Counseling on Reproductive Hazards
Ensure that all employees have been counseled on and fully understand the reproductive hazards related to work
in contaminated areas or in leaded gasoline or chemically contaminated tanks since they may be seriously affected
by organic lead compounds or other chemical contaminants.
3.2.2.8 Hazardous Areas
Check hazardous areas as defined in paragraph entitled "Survey of Hazardous Areas."
3.3 TABLE OF TANK HISTORY
NOTE: Data for these paragraphs should be obtained from the Commanding Officer
of the individual Naval facility having tanks for cleaning.
Tank Tank Tank Date Con- Type of Type Remarks
Number Location Capacity structed Lining of Fuel from the
(If Ap- Last In-
plicable spection
-----------------------------------------------------------------------
3.4 FUEL REMOVAL
NOTE: Contact the fuel department of the nearest Naval Supply Center or Depot
to determine if dirty residual fuel can be accepted by the Government for reclamation.
If not reclaimed by the Government, consider the following. Depending on the
amount of residual fuel remaining in the tank after pump down by the Government
and the degree of fuel emulsification, the designer, in consultation with the
activity, should decide on whether to require fuel/water separation under the
scope of this Contract, dispose of the mixture as hazardous wastes if tests
show presence of hazardous constituents, or use other options available to the
Government.
All possible fuel will be pumped or otherwise removed from the tank by the Government. Consider remaining fuel
contaminated or waste fuel; [pump into 55 gallon drums or other suitable containers for disposal in accordance
with approved procedures meeting local, State, and Federal regulations] [provide oil/water separators for further
recovery of fuels and turn over to the Government for use]. Dispose of remaining fuel emulsions in accordance
with applicable local, State, and Federal regulations. Drums or tanks used for containerizing waste fuel will
be furnished by the [Contractor] [Government]. Oil/water separator for fuel separation will be furnished by
the [Contractor] [Government].
3.5 IDENTIFICATION OF TANKS WITH HAZARDOUS WASTE SLUDGES AND RESIDUES
NOTE: Information on the hazardous waste characteristics of the sludge in the
tanks should be provided by the activity. If not, sampling and analysis must
be conducted during the 0-35 percent design stage to define properly scope and
costs.
The following [tank is][tanks are] known or suspected to contain hazardous wastes:
Tank No. Product Hazardous Waste, Status, Type and Basis-known [or suspect]
[1] [MOGAS] [Sludge and sandblast residue; ignitablility and lead]
3.6 TANK CLEANING
For the interior of the tanks, the shell, bottom, columns, roof, roof beams, and interior accessory equipment
such as pumps, piping, and ladders, shall be cleaned [to bare metal] [not to bare metal but only to the sound
surface of the lining or coating], free of rust, dirt, scale, loose materials, fuel, oil, grease, sludge, and
other deleterious materials. [Do not damage sound existing lining material. Remove unsound or loose lining or
coating and clean the surfaces exposed thereby to bare metal or concrete as applicable. Immediately notify the
Contracting Officer if the lining or coating is deteriorated or loose.]
3.6.1 Monitoring
NOTE: Use for tanks with leaded gasoline hazard. Consult cognizant industrial
hygienist regarding deletion if there is not leaded gasoline hazard.
Monitoring of airborne concentrations of lead shall be in accordance with 29 CFR 1910.1025 of benzene in accordance
with 29 CFR 1910.1028, and as specified herein. Air monitoring, testing, and reporting shall be performed by
a CIH or an Industrial Hygiene (IH) Technician who is under the direction of the CIH.
a. The CIH or the IH Technician under the direction of the CIH shall be on the jobsite directing
the monitoring, and inspecting the work to ensure that the requirements of the Contract have
been satisfied during the entire operation. [The CIH shall be located [_____] during the entire
tank cleaning operation.]
b. Take personal air monitoring samples on employees who are anticipated to have the greatest
risk of exposure as determined by the CIH. In addition, take air monitoring samples on at least
25 percent of the work crew or a minimum of two employees, whichever is greater, during each
work shift.
c. Submit results of air monitoring samples, signed by the CIH, within 2 working days after
the air samples are taken. Notify the Contracting Officer immediately of exposure to lead at
or in excess of the action level of 30 micrograms per cubic meter of air outside of the lead
control area, and 0.5 ppm for benzene.
3.6.1.1 Monitoring During Tank Cleaning Work
Perform personal and area monitoring during the entire tank cleaning operation. Sufficient area monitoring shall
be conducted at the physical boundary to ensure unprotected personnel are not exposed above 30 micrograms per
cubic meter of air for lead and 0.5 ppm for benzene at all times. If the outside boundary lead levels are at
or exceed 30 micrograms per cubic meter of air or the benzene levels are at or exceed 0.5 ppm, work shall be
stopped and the CIH shall immediately correct the condition(s) causing the increased levels and notify the Contracting
Officer immediately. The CIH shall review the sampling data collected on that day to determine if condition(s)
requires any further change in work methods. Tank cleaning work shall resume when approval is given by the CIH.
The Contractor shall control the lead level outside of the work boundary to less than 30 micrograms per cubic
meter of air and the benzene levels to less than 0.5 ppm at all times. As a minimum, conduct area monitoring
daily on each shift in which tank cleaning operations are performed in areas immediately adjacent to the control
area. For outdoor operations, at least one sample on each shift shall be taken on the downwind side of the control
area. If adjacent areas are contaminated, clean and visually inspect contaminated areas. The CIH shall certify
that the area has been cleaned of contamination.
3.6.2 [Lead Hazard Personnel Safety
NOTE: Delete brackets and words within brackets if there is no leaded fuel
in any tank.
Due to the lead hazard (inorganic and organic (TEL)) associated with this tank, comply with API Std 2015, and
the applicable rules and regulations of the State of [Hawaii] [_____] and Federal Occupational Safety and Health
Standards. If there is conflict among the API Publications, State, and Federal regulations; the most stringent
criteria shall apply. Ensure that the requirements for protective clothing and equipment, monitoring to determine
exposure levels, and all other relevant controls are complied with. Ensure that employees are counseled on the
reproductive hazards associated with lead.]
3.6.3 [Precautions for Airborne Lead
NOTE: Delete brackets and words within brackets if there is no leaded fuel
in any tank.
NOTE: The following paragraphs can be inserted into the appropriate section
(demolition, tank coating, or repair/modifications) for follow on work to the
tank:
Since the tank is a known lead hazard, the Contractor shall, in accordance with API Std 2015, ensure that the
workers inside the tank wear the appropriate protective clothing and respiratory equipment as prescribed by API Std 2015
for the duration of the tank cleaning. Use only the types of respirators specified for "Respiratory Protection"
under paragraph entitled "Equipment." After completion of the cleaning operation, the Contractor has the option
of allowing people to enter the tank without respiratory protective equipment, only after in lead-in-air analysis
has been obtained in accordance with API Std 2015.]
3.6.4 Water, Sediment, and Sludge Analysis
NOTE: All wastes shall be tested prior to tank cleaning, by the Government
and by the Contractor, regardless of the tank's past history as to the storage
of leaded fuel.
Use this paragraph if the Government has already tested the water, sediment,
and sludge. If at all possible, the Government shall perform the necessary
tests to determine if the wastes are hazardous or nonhazardous prior to bid.
The Government test results should be presented in the Specification and used
as a basis for bidding. This does not preclude independent testing required
of the Contractor to verify the Government analysis. For Air Force projects,
check latest Air Force requirements for handling of hazardous waste materials.
40 CFR Part 261 is the EPA criteria for hazardous waste. The concern with leaded
fuel or any other lead product is the characteristic of toxicity. If the sample
contains 5 mg/liter or more of lead, then the sample is considered a hazardous
waste. The test method to determine the lead concentration is specifically
defined in 40 CFR Part 261 and does not distinguish between inorganic and organic
(TEL) lead. The dangers associated with organic lead (TEL) is related to personnel
safety (its absorption into the human body through the skin or respiratory system)
and is of no concern to EPA with regards to the handling and disposal of hazardous
wastes. The EPA test measures the concentration of total lead which leaches
out into solution. Lead in its pure or stable forms, such as lead weights,
etc., that does not leach out into the test solution, is not a hazardous waste.
The EPA has a new test procedure called Toxicity Characteristic Leaching Procedure
(TCLP). Changes may be required to specifications and cost estimates because
of expanded testing requirements.
NOTE: When Government disposal of hazardous waste has been determined to be
the most practical method of disposal, include the option for delivery of waste
to the Government. Add details if necessary.
The water, sediment, and sludge remaining in the tank contain the following quantities of leachable metals as
analyzed by the Government in accordance with 40 CFR 261.
a. Water: [_____]
b. Sediment: [_____]
c. Sludge: [_____]
The Government analysis indicates that the water, sediment, and sludge are [nonhazardous] [hazardous]. The Contractor
shall be responsible for independently testing the water, sediment, and sludge in accordance with 40 CFR 261
to verify the above. Submit laboratory reports to the Contracting Officer describing sampling and testing procedures
used, test results, and findings. If the results differ such that the Contractor must handle the waste differently
from the method specified, notify the Contracting Officer, and the Contractor will be subject to an equitable
adjustment to the Contract under the Changes clause of the Contract Clauses. If the Contractor's tests determine
that the water, sediment, and sludge are hazardous, then the hazardous wastes shall be packaged, labeled, stored,
transported, treated and disposed of in accordance with 40 CFR 260, 40 CFR 261, 40 CFR 262, 40 CFR 263, 40 CFR 264
, 40 CFR 265, and 40 CFR 266. Transporters, storers, treaters and disposers must be certified and have EPA ID
numbers. Payment for disposal of hazardous waste will not be made until a completed hazardous waste manifest
from the treatment or disposal facility is returned, and a copy furnished to the Government. [Deliver hazardous
waste to the Government for disposal [as directed by the Contracting Officer.] [_____.]] Nonhazardous or hazardous
wastes shall be handled and disposed of as described below.
3.6.5 Water Removal and Disposal
NOTE: The Government should estimate and indicate the quantity of water, sludge,
sediment, and fuel, if any, remaining in the tank so that the Contractor can
be more responsive in his bidding. Verify availability of Government disposal
facilities.
NOTE: When Government disposal of hazardous waste has been determined to be
the most practical method of disposal, include the option for delivery of waste
to the Government. Add details if necessary.
NOTE: Land application of non-hazardous wastes such as onto surrounding grounds
or inside the berm may be subject to local, State, and Federal groundwater protection
regulations. Designer must check for site-specific regulatory restrictions.
Based on tests to determine the character of the wastewater, an assessment should
be made for any need to pretreat the nonhazardous wastes through oil-water separators
or filters prior to land application, when such disposal is allowed.
Pump or otherwise remove water from the tank. Ensure that the sludge and sediment are not pumped out or mixed
with the water. There are [_____] gallons of [nonhazardous] [hazardous] water that [can be disposed of into
the berm area.] [shall be packaged, labeled, stored, transported, treated, and disposed of in accordance with
40 CFR 260, 40 CFR 261, 40 CFR 262, 40 CFR 263, 40 CFR 264, 40 CFR 265, and 40 CFR 266.] [Deliver hazardous waste
to the Government for disposal [as directed by the Contracting Officer.] [_____.]]
3.6.6 Sludge and Sediment Removal and Disposal
Squeegee or brush any sludge, sediment, or other loose material into piles, shovel into buckets or other suitable
containers, and remove from the tank.
3.6.6.1 Sludge Disposal Using [Landfill] [Berm]
NOTE: Select the applicable paragraph(s) from the following:
NOTE: The Government should estimate and indicate the quantity of water, sludge,
sediment, and fuel, if any, remaining in the tank so that the Contractor can
be more responsive in his bidding. Verify availability of Government disposal
facilities.
NOTE: Disposal of sludge and sediment in the berm area may interfere with the
Contractor's operations if storage or lay down of materials within the berm
is planned. State permit may be required for disposal in the berm area and
should be obtained by the Government prior to advertising for bids.
There are [_____] barrels of nonhazardous sediment and sludge in the tank that can be disposed of in [the berm
area] [sanitary landfill]. [Spread nonhazardous sludge as uniformly as possible over the area in a maximum 3-inch
thick layer for weathering in the berm area. Fence the area temporarily and mark with a wood or metal sign.
When the ambient temperatures are above zero degrees C 32 degrees F, the weathering period shall be a minimum
of 4 weeks. For colder temperatures, the weathering period shall be extended by the number of days the temperature
falls below zero degrees C 32 degrees F. After the required time elapses, remove the signs and fences.]
[Sludge Disposal Using Reclamation Plant
NOTE: The Government should estimate and indicate the quantity of water, sludge,
sediment, and fuel, if any, remaining in the tank so that the Contractor can
be more responsive in his bidding. Verify availability of Government disposal
facilities.
There are [_____] barrels of nonhazardous sediment and sludge in the tank that shall be delivered to the Government
for disposal in the Government operated oily waste reclamation plant.]
[Removal of Sludge
NOTE: The Government should estimate and indicate the quantity of water, sludge,
sediment, and fuel, if any, remaining in the tank so that the Contractor can
be more responsive in his bidding. Verify availability of Government disposal
facilities.
There are [_____] barrels of hazardous sediment and sludge in the tank that shall be disposed of by the Contractor.
Package, label, store, transport, treat, and dispose of hazardous sludge and sediment in accordance with 40 CFR 260
, 40 CFR 261, 40 CFR 262, 40 CFR 263, 40 CFR 264, 40 CFR 265, and 40 CFR 266.]
[Delivery of Sludge to the Government
NOTE: When Government disposal of hazardous waste has been determined to be
the most practical method of disposal, include the option for delivery of waste
to the Government. Add details if necessary.
NOTE: The Government should estimate and indicate the quantity of water, sludge,
sediment, and fuel, if any, remaining in the tank so that the Contractor can
be more responsive in his bidding. Verify availability of Government disposal
facilities.
There are [_____] barrels of hazardous sediment and sludge in the tank that shall be delivered to the Government
for disposal. Package, label, accumulate, transport, treat, and dispose of hazardous sludge and sediment in
accordance with 40 CFR 260, 40 CFR 261, 40 CFR 262, 40 CFR 263, 40 CFR 264, 40 CFR 265, and 40 CFR 266.]
3.6.7 Washing
NOTE: This paragraph is applicable to concrete or steel tanks. Only water
shall be used as the first preference. Steel tanks which have contained light
products can normally be cleaned by washing down with fresh water under pressure.
Detergent shall be considered, if water by itself will be inadequate to remove
all fuel residue. Use detergent, if the tank service will be changed from leaded
fuel to unleaded fuel. The detergent and solvent solution should be specified
only if the tank is expected to be heavily coated with fuel residue. The choice
of cleaning agent shall be based on the type of fuel stored in the tank and
the conditions expected. Consider brush blasting to minimize the use of water.
After water, fuel, and sludge have been removed, thoroughly wash the tank interior. Minimize the use of water;
substitute brush blasting when practical. Start washing at the top of the walls and columns and work down to
the floor. Wash the floor last starting from the sides and working towards the sump. Wash to remove oil, sludge,
wax, tar, and other fuel residue adhering to the surface. Wash by any one or a combination of the following
methods:
NOTE: Select the applicable paragraph(s) from the following:
[a. Use only fresh water under pressure.]
[a. Apply a detergent conforming to FS O-D-1276 by spray or brush and soak approximately 30
minutes.]
[a. Apply a detergent cleaning solution by spray or brush and allow to soak approximately 30
minutes. The cleaning solution shall be either a one-to-one ratio of detergent conforming to
FS O-D-1276 and solvent conforming to MIL-PRF-680 or an equivalent commercial cleaning agent
as approved by the Contracting Officer.]
b. Hand-scrub the surfaces vigorously with long-handled stiff-bristle brushes. Wet the brushes
intermittently with fresh [cleaning agent] during scrubbing process. For heavily oil-soaked
areas which still appear to retain some residue after first scrubbing, [give a second application
of cleaning agent and repeat the scrub process a second time.] [scrub until clean.]
c. Rinse the surfaces thoroughly with fresh water.
d. Brush-off blast clean.
3.6.8 Wash Water, [Detergent Solution,] and Sediment Removal
During the washing process, operate a portable pump continuously with suction hose extended to the tank bottom
to remove water, [detergent,] dirt, oil, or other loose materials washed off. Following the final rinse, pump,
squeegee, and mop the tank dry.
a. Prior to discharge or disposal, test the wash water, sediment, and sludge in accordance
with paragraph entitled "Water, Sediment, and Sludge Analysis." The Contractor shall furnish
temporary tanks to hold water and detergent solution until testing is completed.
NOTE: Select the applicable paragraph(s) from the following:
NOTE: Use the first paragraph if only fresh water is used for washing.
[b. The wash water is [nonhazardous and can be disposed of in the berm area.] [hazardous and
shall be handled in accordance with paragraph entitled "Water, Sediment, and Sludge Analysis."]]
NOTE: Use the second paragraph if detergent or solvent is used for washing
or if wash water only is to be discharged to a sanitary sewer. Verify existence
of industrial waste treatment and oil reclamation plants; if not available,
revise wording and include list of pollutants and discharge limits for which
discharge into local sanitary sewerage system is permissible.
NOTE: Designer should check with owner/operator of Navy or municipal sewer
system if dumping waste water into sewers will be allowed and describe special
conditions which Contractor must follow. Obtain necessary permits and permission
to discharge to sanitary sewers prior to advertising for bids.
[b. The water and detergent solution is nonhazardous and can be disposed of into the [Navy]
[municipal] sewer system. The Contractor shall ensure that the wash water does not exceed the
discharge limitations listed below. Notify the Contracting Officer and the [Navy] [municipal]
sewage treatment plant operator at least 24 hours prior to discharge into the sanitary sewer
at Phone No. [_____].
NOTE: Items and limits are given as an example only. The project designer
must develop a list of items and limits which are specific for the project site.
TABLE 2. WASTE WATER DISCHARGE LIMITS TO SEWERS
Item Limits
(1) pH [5.5-9.5] [_____]
(2) Oil and Grease (Hydrocarbon) [50] [_____] mg/l Max.
(3) Surfactant (MBAS) [30] [_____] mg/l Max.
(4) Lead [0.6] [_____] mg/l Max.
(5) Total Identifiable Chlorinated [0.04] [_____] mg/l Max.
Hydrocarbons
(6) Benzene and Derivatives [2.0] [_____] mg/l Max.
(7) Organic Solvents [2.5] [_____] mg/1 Max.
(8) [_____] [_____] mg/l Max.
If the discharge limits are exceeded for any of the above items, dispose of the water and detergent solution
as directed by the Contracting Officer, at either the Navy's [Industrial Waste Treatment Plant] [or] [the Oil
Reclamation Plant]. The Contractor may pretreat the wash water to make it suitable for discharge to the sanitary
sewer system if approved by the Contracting Officer. Submit the plan for pretreatment to the Contracting Officer
for approval [21] [_____] days prior to scheduling pretreated discharges.]
c. For bidding purposes, assume that the sediment is [nonhazardous and can be disposed of [in
the berm area] [in a sanitary landfill]] [hazardous and must be handled in accordance with paragraph
entitled "Sludge and Sediment Removal and Disposal."].
3.6.9 Removal of Scale and Other Tenaciously Adhering Materials
Perform [sandblast cleaning] [or] [power wire brushing]. [The brush shall be made of spark resistant bronze wire.]
After [sandblasting] [or] [power wire brushing], clean the entire tank interior surfaces by brushing, blowing
with dry compressed air, and vacuuming. Remove loose materials from the tank interior.
3.6.10 Disposal of Used Blasting Abrasive
NOTE: When Government disposal of hazardous waste has been determined to be
the most practical method of disposal, include the option for delivery of waste
to the Government. Add details if necessary.
Test used abrasive in accordance with 40 CFR 261 to determine if it is a hazardous waste using the EP toxicity
test for metals. Handle and dispose of abrasive determined to be hazardous waste in accordance with 40 CFR 260
, 40 CFR 261, 40 CFR 262, 40 CFR 263, 40 CFR 264, 40 CFR 265, and 40 CFR 266. Dispose of abrasive which is not
hazardous waste at a landfill off Government property in accordance with applicable regulations. The contract
price will be adjusted if the used abrasive is determined to be hazardous waste. [However, payment for disposal
of hazardous waste will not be made until a completed manifest from the treatment or disposal facility is returned,
and a copy furnished to the Government.] [Deliver hazardous waste to the Government for disposal [as directed
by the Contracting Officer].]
3.6.11 Special Instructions for Cleaning Tank Storage JP-5 Fuel
a. Comply with the precautions and procedures outlined above for cleaning petroleum storage
tanks.
NOTE: JP-5 has a relatively low Reid vapor pressure, the combustible gas indicator
will not ordinarily indicate any vapors present in the tank, at any time during
the entire tank cleaning work. But this does not mean that hazardous flammable
fuel vapors are not present.
b. Use respiratory equipment specified for "Respiratory Protection" under paragraph entitled
"Equipment," in this section, at all times, regardless whether or not combustible gas indicator
indicates any vapors present in the tank. Wear the respiratory protective equipment continuously
until the tank side and bottom has been thoroughly cleaned, washed and dried.
NOTE: Delete the paragraph, if there is no floating-roof tank.
[c. Thoroughly clean of fuel, rust and debris in the interior of each pontoon of the floating
tanks.]
3.6.12 Special Precautions
NOTE: Delete, if not applicable.
Special Precautions for Tanks with Pipe Columns and Braces, Pontoons, and Leaking Bottoms:
a. Pipes used for columns and braces, pontoons and leaking bottoms are a potential source of
explosive vapors even after the tank is cleaned. The tank may be determined to be vapor free
below 4 percent of lower explosive limit; but after one or two hours, explosive readings must
again be obtained from these sources. The Contractor shall take readings at least every half
hour when working in tanks after they have been cleaned and each floating roof or pan pontoon
shall be checked individually with a combustible gas indicator.
b. If the repair work is to be performed on floating roof tanks, the interior of each pontoon
on the roof shall be thoroughly cleaned of fuel, rust, water, and debris.
3.6.13 [Lead-Hazard-Free Tests
NOTE: Delete brackets and words within brackets if there is no leaded fuel
in any tank.
In accordance with API Std 2015, tank lead-in-air tests to make sure that the tank is lead-hazard-free (CAUTION:
Never take lead-hazard-free tests before or during cleaning, only after).]
3.7 FINAL CLEAN-UP
After the Contracting Officer has inspected and accepted the tank cleaning and before final inspection, accomplish
the following work:
3.7.1 Stenciling Tank
Stencil on the tank in 20 mm 3/4 inch letters adjacent to the manhole openings the following data:
Date Cleaned - [_____]
Contractor Name - [_____]
Address - [_____]
3.7.2 Restoration of Site to Original Condition
[Do not reconnect pipelines until application of interior and exterior coatings specified in other sections of
this specification, have been completed.] Replace valves, piping, manhole covers, and similar items which were
removed at the start of the job with new gasket material resistant to fuel. Pressure check valves and piping.
Remove, from the site, debris and equipment and materials used for the cleaning operations. Restore the site
to its original condition.