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USACE / NAVFAC / AFCEC / NASA UFGS-33 65 00 (August 2011)

---------------------------

Preparing Activity: NAVFAC Superseding

UFGS-33 65 00 (April 2006)

UNIFIED FACILITIES GUIDE SPECIFICATIONS

References are in agreement with UMRL dated January 2016

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SECTION TABLE OF CONTENTS

DIVISION 33 - UTILITIES

SECTION 33 65 00

CLEANING PETROLEUM STORAGE TANKS

08/11

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 DEFINITIONS

1.3.1 Certified Industrial Hygienist (CIH)

1.3.2 Marine Chemist

1.3.3 Hazardous Areas

1.3.4 Hot Work Operations

1.3.5 Personal Monitoring

1.3.6 Reproductive Hazard

1.4 QUALITY ASSURANCE

1.4.1 Modification of References

1.4.2 Copies of Standards

1.4.3 Safety Permits and Equipment

1.4.4 Regulatory Requirements

1.4.5 Medical Examinations

1.4.6 Medical Records

1.4.7 CIH Responsibilities

1.4.8 Training

1.4.9 [Respiratory Protection Program

1.4.10 Pre-Construction Conference

1.4.11 Certificates

1.4.11.1 Qualifications of Marine Chemist

1.4.11.2 Qualifications of Certified Industrial Hygienist (CIH)

1.4.11.3 Testing Laboratory

1.4.11.4 Safety Plan

1.4.11.5 Work Plan

1.4.11.6 Hazardous Waste Disposal Plan

1.4.11.7 Tank Certification of Safety

1.4.11.8 Training Certification

1.4.11.9 Hazardous Waste Permits

1.4.11.10 Non-Hazardous Waste Permits

1.4.12 Test Results

1.4.12.1 Required Test Reports

1.4.12.2 Air Monitoring

SECTION 33 65 00 Page 1

1.5 DELIVERY AND STORAGE

1.6 JOB CONDITIONS

1.6.1 Ventilation

1.7 SCHEDULING AND SEQUENCING

1.7.1 Sequence of Primary Phases of the Cleaning Procedure

1.7.2 General Scheduling

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Cleaning Agents

2.1.2 Abrasive

2.1.2.1 Abrasive for Blasting

2.1.2.2 Recycled Abrasive

2.2 EQUIPMENT

PART 3 EXECUTION

3.1 PROJECT CONDITIONS

3.1.1 Cutting Tank Access Holes

3.1.2 Permission for Each Entry Into a Tank

3.1.3 Traffic Control

3.1.4 Lavatory Facilities

3.1.5 Miscellaneous

3.1.5.1 Grounding and Bonding for Equipment

3.1.5.2 Fire Extinguishers

3.1.5.3 Disconnection Pipelines

3.1.5.4 Removal of Ignition Sources

3.1.5.5 Survey of Hazardous Areas

3.1.5.6 Exit from a Tank During Emergencies

3.2 INSPECTION

3.2.1 Inspection of Equipment

3.2.1.1 Respirators

3.2.1.2 Air Hose from Breathing-Air Supply

3.2.1.3 Safety Harness and Life Line

3.2.1.4 Breathing-Air Supply Source

3.2.1.5 Monitoring Equipment

3.2.1.6 Other Equipment

3.2.2 Personnel Inspection

3.2.2.1 Clothing

3.2.2.2 Breathing-Air Supply

3.2.2.3 Harness and Lifeline

3.2.2.4 Gum or Tobacco Chewing

3.2.2.5 Physical Defects or Injuries

3.2.2.6 Alcoholic Beverages and Drugs

3.2.2.7 Counseling on Reproductive Hazards

3.2.2.8 Hazardous Areas

3.3 TABLE OF TANK HISTORY

3.4 FUEL REMOVAL

3.5 IDENTIFICATION OF TANKS WITH HAZARDOUS WASTE SLUDGES AND RESIDUES

3.6 TANK CLEANING

3.6.1 Monitoring

3.6.1.1 Monitoring During Tank Cleaning Work

3.6.2 [Lead Hazard Personnel Safety

3.6.3 [Precautions for Airborne Lead

3.6.4 Water, Sediment, and Sludge Analysis

3.6.5 Water Removal and Disposal

3.6.6 Sludge and Sediment Removal and Disposal

3.6.6.1 Sludge Disposal Using [Landfill] [Berm]

SECTION 33 65 00 Page 2

3.6.7 Washing

3.6.8 Wash Water, [Detergent Solution,] and Sediment Removal

3.6.9 Removal of Scale and Other Tenaciously Adhering Materials

3.6.10 Disposal of Used Blasting Abrasive

3.6.11 Special Instructions for Cleaning Tank Storage JP-5 Fuel

3.6.12 Special Precautions

3.6.13 [Lead-Hazard-Free Tests

3.7 FINAL CLEAN-UP

3.7.1 Stenciling Tank

3.7.2 Restoration of Site to Original Condition

-- End of Section Table of Contents --

SECTION 33 65 00 Page 3

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USACE / NAVFAC / AFCEC / NASA UFGS-33 65 00 (August 2011)

---------------------------

Preparing Activity: NAVFAC Superseding

UFGS-33 65 00 (April 2006)

UNIFIED FACILITIES GUIDE SPECIFICATIONS

References are in agreement with UMRL dated January 2016

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SECTION 33 65 00

CLEANING PETROLEUM STORAGE TANKS

08/11

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NOTE: This guide specification covers the requirements for clean-up of the interior of concrete or steel tanks used for petroleum storage.

Adhere to UFC 1-300-02 Unified Facilities Guide

Specifications (UFGS) Format Standard when editing this guide specification or preparing new project specification sections. 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, suggestions and recommended changes for this guide specification are welcome and should be

submitted as a Criteria Change Request (CCR).

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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.

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PART 1 GENERAL

1.1 REFERENCES

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NOTE: This paragraph is used to list the publications cited in the text of the guide

SECTION 33 65 00 Page 4

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.

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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 PETROLEUM INSTITUTE (API)

API RP 2003 (2008; 7th Ed) Protection Against

Ignitions Arising out of Static,

Lightning, and Stray Currents

API RP 500 (2012; Errata 2014) Classification of

Locations for Electrical Installations at

Petroleum Facilities Classified as Class

I, Division and Division 2

API Std 2015 (2014) Safe Entry and Cleaning of

Petroleum Storage Tanks

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 306

NFPA 70

(2014) Standard for Control of Gas Hazards on Vessels

(2014; AMD 1 2013; Errata 1 2013; AMD 2

2013; Errata 2 2013; AMD 3 2014; Errata

3-4 2014; AMD 4-6 2014) National

Electrical Code

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 (2014) Safety and Health Requirements

Manual

U.S. DEPARTMENT OF DEFENSE (DOD)

MIL-A-22262 (1993; Rev B; Am 2 1996) Abrasive Blasting

Media Ship Hull Blast Cleaning

SECTION 33 65 00 Page 5

the following list to reflect only the submittals required for the project.

The Guide Specification technical editors have designated those items that require Government approval, due to their complexity or criticality, with a "G". Generally, other submittal items can be reviewed by the Contractor's Quality Control

System. Only add a “G” to an item, 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.

An "S" following a submittal item indicates that the submittal is required for the Sustainability

Notebook to fulfill federally mandated sustainable requirements in accordance with Section 01 33 29

SUSTAINABILITY REPORTING.

Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.

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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.] Submittals with an "S" are for inclusion in the

Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY

REPORTING. Submit the following 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

SECTION 33 65 00 Page 7

the following list to reflect only the submittals required for the project.

The Guide Specification technical editors have designated those items that require Government approval, due to their complexity or criticality, with a "G". Generally, other submittal items can be reviewed by the Contractor's Quality Control

System. Only add a “G” to an item, 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.

An "S" following a submittal item indicates that the submittal is required for the Sustainability

Notebook to fulfill federally mandated sustainable requirements in accordance with Section 01 33 29

SUSTAINABILITY REPORTING.

Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.

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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.] Submittals with an "S" are for inclusion in the

Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY

REPORTING. Submit the following 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

SECTION 33 65 00 Page 7

[

[

[

[

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[, [_____]]

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[, [_____]]]

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

SECTION 33 65 00 Page 8

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

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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.

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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

SECTION 33 65 00 Page 9

equipment, static discharges, friction, impact, open flames or embers, nonexplosion-proof lights, fixtures, motors or equipment.

1.3.5 Personal Monitoring

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NOTE: Consult with cognizant industrial hygienist regarding deletion if no lead hazard is present in tanks.

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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

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NOTE: Delete brackets and words within brackets if there is no leaded fuel in any tank.

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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

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NOTE: Delete brackets and words within brackets if there is no leaded fuel in any tank.

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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.

SECTION 33 65 00 Page 10

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

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NOTE: Delete if there is no lead hazard.

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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

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NOTE: Delete if there is no lead hazard.

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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

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SECTION 33 65 00 Page 11

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

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NOTE: Coordinate listing of cleaning agents with paragraph entitled "Washing" on cleaning method.

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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

SECTION 33 65 00 Page 16

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

SECTION 33 65 00 Page 17

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 labeled 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

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NOTE: Coordinate with the local fire department to determine the minimum quantities of fire extinguishers for each specific job.

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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.

SECTION 33 65 00 Page 20

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:

SECTION 33 65 00 Page 21

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

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NOTE: Coordinate listing of cleaning agents with paragraph entitled "Washing" on cleaning method.

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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

SECTION 33 65 00 Page 16

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

SECTION 33 65 00 Page 17

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 29 CFR 1910.134,

Appendix B-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.

SECTION 33 65 00 Page 18

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

SECTION 33 65 00 Page 26

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.

**************************************************************************

**************************************************************************

SECTION 33 65 00 Page 27

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:

SECTION 33 65 00 Page 21

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.

SECTION 33 65 00 Page 22

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 Number Tank

Location

Tank

Capacity

Date

Constructed

Type of

Lining (If

Applicable)

Type of

Fuel

Remarks from the Last

Inspection

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

SECTION 33 65 00 Page 23

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.

[1]

Product

[MOGAS]

Hazardous Waste, Status, Type and Basis-known [or suspect]

[Sludge and sandblast residue; ignitability 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.

SECTION 33 65 00 Page 24

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.]

SECTION 33 65 00 Page 25

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

SECTION 33 65 00 Page 26

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.

**************************************************************************

**************************************************************************

SECTION 33 65 00 Page 27

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

SECTION 33 65 00 Page 28

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

SECTION 33 65 00 Page 29

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.

SECTION 33 65 00 Page 30

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.

**************************************************************************

SECTION 33 65 00 Page 31

TABLE 2. WASTE WATER DISCHARGE LIMITS TO SEWERS

Limits Item

(1) pH

(2) Oil and Grease (Hydrocarbon)

(3) Surfactant (MBAS)

[5.5-9.5] [_____]

[50] [_____] mg/l Max.

[30] [_____] mg/l Max.

(4) Lead [0.6] [_____] mg/l Max.

(5) Total Identifiable Chlorinated Hydrocarbons [0.04] [_____] mg/l Max.

(6) Benzene and Derivatives

(7) Organic Solvents

(8) [_____]

[2.0] [_____] mg/l Max.

[2.5] [_____] mg/1 Max.

[_____] 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

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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.

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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

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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.

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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.

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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.

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NOTE: Delete the paragraph, if there is no floating-roof tank.

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[c. Thoroughly clean of fuel, rust and debris in the interior of each pontoon of the floating tanks.]

3.6.12 Special Precautions

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NOTE: Delete, if not applicable.

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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.

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3.6.13 [Lead-Hazard-Free Tests

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NOTE: Delete brackets and words within brackets if there is no leaded fuel in any tank.

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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.

-- End of Section --

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