Office Of ;:Vil'k ;-; Ģ ft;j;
International Activilief
(2660) ^.^fX;^m
Ehforcemeint And ".V
CompliariQe- Assurance ,
' ' "
EPA31P-R-97-008
September 1997
Shipbuilding and
Repair Industry
"!-Ģ'SisS
NOTEBOOKS
EPA Office jOf Compliance Sector Notebook Project
-------
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON, D.C. 20460
f 8 /997
THE ADMINISTRATOR
Message from the Administrator
Since EPA's founding over 25 years ago, our nation has made tremendous progress in protecting
public health and our environment while promoting economic prosperity. Businesses as large as
iron and steel plants and those as small as the dry cleaner on the corner have worked with EPA to
find ways to operate cleaner, cheaper and smarter. As a result, we no longer have rivers catching
fire. Our skies are clearer. American environmental technology and expertise are in demand
around the world.
The Clinton Administration recognizes that to continue this progress, we must move beyond the
pollutant-by-pollutant approaches of the past to comprehensive, facility-wide approaches for the
future. Industry by industry and community by community, we must build a new generation of
environmental protection.
The Environmental Protection Agency has undertaken its Sector Notebook Project to compile,
for major industries, information about environmental problems and solutions, case studies and
tips about complying with regulations. We called on industry leaders, state regulators, and EPA
staff with many years of experience in these industries and with their unique environmental issues.
Together with an extensive series covering other industries, the notebook you hold in your hand is
the result.
These notebooks will help business managers to understand better their regulatory requirements,
and learn more about how others in their industry have achieved regulatory compliance and the
innovative methods some have found to prevent pollution in the first instance. These notebooks
will give useful information to state regulatory agencies moving toward industry-based programs.
Across EPA we will use this manual to better integrate our programs and improve our compliance
assistance efforts.
I encourage you to use this notebook to evaluate and improve the way that we together achieve
our important environmental protection goals. I am confident that these notebooks will help us to
move forward in ensuring that hi industry after industry, community after community
environmental protection and economic prosperity go'.
Carol M. Browner,
Rtcycltd/RtcyclaM* 'Printed with Vegetable Ol Based Inks on 100% Recycled Paper (40% Postconsumer)
-------
Shipbuilding and Repair Industry
Sector Notebook Project
EPA/310-R-97-008
EPA Office of Compliance Sector Notebook Project:
PROFILE OF THE SHIPBUILDING AND REPAIR INDUSTRY
November 1997
Office of Compliance
Office of Enforcement and Compliance Assurance
U.S. Environmental Protection Agency
401 M St., SW (MC 2221-A)
Washington, DC 20460
For sale by the U.S. Government Printing Office
Superintendent of Documents, Mail Stop: SSOP, Washington, DC 20402-9328
ISBN 0-16-049400-1
-------
Shipbuilding and Repair Industry
Sector Notebook Project
This report is one in a series of volumes published by the U.S. Environmental Protection Agency
(EPA) to provide information of general interest regarding environmental issues associated with
specific industrial sectors. The documents were developed under contract by Abt Associates
(Cambridge, MA), Science Applications International Corporation (McLean, VA), and Booz-
Allen & Hamilton, Inc. (McLean, VA). This publication may be purchased from the
Superintendent of Documents, U.S. Government Printing Office. A listing of available Sector
Notebooks and document numbers is included at the end of this document.
All telephone orders should be directed to:
Superintendent of Documents
U.S. Government Printing Office
Washington, DC 20402
(202)512-1800
FAX (202) 512-2250
8:00 a.m. to 4:30 p.m., EST, M-F
Using the form provided at the end of this document, all mail orders should be directed to:
U.S. Government Printing Office
P.O. Box 371954
Pittsburgh, PA 15250-7954
Complimentary volumes are available to certain groups or subscribers, such as public and
academic libraries, Federal, State, and local governments, and the media from EPA's National
Center for Environmental Publications and Information at (800) 490-9198. For further
information, and for answers to questions pertaining to these documents, please refer to the
contact names and numbers provided within this volume.
Electronic versions of all Sector Notebooks are available via Internet on the Enviro$en$e World
Wide Web. Downloading procedures are described in Appendix A of this document.
Cover photograph courtesy of Ingalls Shipbuilding Inc., Pascagoula, MS.
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
Sector Notebook Contacts
The Sector Notebooks were developed by the EPA's Office of Compliance. Questions relating to
the Sector Notebook Project can be directed to:
Seth Heminway, Coordinator, Sector Notebook Project
US EPA Office of Compliance
401 M St., SW (2223-A)
Washington, DC 20460
(202) 564-7017
Questions and comments regarding the individual documents can be directed to the appropriate
specialists listed below.
Document Number
EPA/310
EPA/310.
EPA/310.
EPA/310.
EPA/310-
EPA/310-
EPA/310.
EPA/310-
EPA/310-
EPA/310-
EPA/310-
EPA/310-
EPA/310
EPA/310
EPA/310
EPA/310
EPA/310.
EPA/310.
EPA/310-
EPA/310-
EPA/310-
EPA/310-
EPA/310.
EPA/310-
EPA/310-
EPA/310-
EPA/310-
EPA/310-
R-95-001.
-R-95-002.
R-95-003.
R-95-004.
R-95-005.
R-95-006.
R-95-007.
-R-95-008.
R-95-009.
-R-95-010.
-R-95-011.
-R-95-012.
-R-95-013.
-R-95-014.
-R-95-015.
-R-95-016.
-R-95-017.
-R-95-018.
-R-97-001.
-R-97-002.
-R-97-003.
-R-97-004.
-R-97-005.
-R-97-006.
-R-97-007.
-R-97-008.
-R-97-009.
-R-97-010.
Industry
Dry Cleaning Industry
Electronics and Computer Industry
Wood Furniture and Fixtures Industry
Inorganic Chemical Industry
Iron and Steel Industry
Lumber and Wood Products Industry
Fabricated Metal Products Industry
Metal Mining Industry
Motor Vehicle Assembly Industry
Nonferrous Metals Industry
Non-Fuel, Non-Metal Mining Industry
Organic Chemical Industry
Petroleum Refining Industry
Printing Industry
Pulp and Paper Industry
Rubber and Plastic Industry
Stone, Clay, Glass, and Concrete Industry
Transportation Equipment Cleaning Ind.
Air Transportation Industry
Ground Transportation Industry
Water Transportation Industry
Metal Casting Industry
Pharmaceuticals Industry
Plastic Resin and Manmade Fiber hid.
Fossil Fuel Electric Power Generation Ind.
Shipbuilding and Repair Industry
Textile Industry
Sector Notebook Data Refresh, 1997
Contact
Joyce Chandler
Steve Hoover
Bob Marshall
Walter DeRieux
Maria Malave
Seth Heminway
Scott Throwe
Jane Engert
Anthony Raia
Jane Engert
Robert Lischinsky
Walter DeRieux
Tom Ripp
Ginger Gotliffe
Maria Eisemann
Maria Malave
Scott Throwe
Virginia Lathrop
Virginia Lathrop
Virginia Lathrop
Virginia Lathrop
Jane Engert
Emily Chow
Sally Sasnett
Rafael Sanchez
Anthony Raia
Belinda Breidenbach
Seth Heminway
Phone (202)
564-7073
564-7007
564-7021
564-7067
564-7027
564-7017
564-7013
564-5021
564-6045
564-5021
564-2628
564-7067
564-7003
564-7072
564-7016
564-7027
564-7013
564-7057
564-7057
564-7057
564-7057
564-5021
564-7071
564-7074
564-7028
564-6045
564-7022
564-7017
Sector Notebook Project
111
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
Page iv intentionally left blank.
Sector Notebook Project
iv
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
SHIPBUILDING AND REPAIR INDUSTRY
(SIC 3731)
TABLE OF CONTENTS
LIST OF FIGURES vii
LIST OF TABLES vii
LIST OF ACRONYMS viii
I. INTRODUCTION TO THE SECTOR NOTEBOOK PROJECT 1
A. Summary of the Sector Notebook Project 1
B. Additional Information 2
II. INTRODUCTION TO THE SHIPBUILDING AND REPAIR INDUSTRY 3
A. Introduction, Background, and Scope of the Notebook 3
B. Characterization of the Shipbuilding and Repair Industry 3
1. Product Characterization 3
2. Industry Size and Geographic Distribution 6
3. Economic Trends 9
III. INDUSTRIAL PROCESS DESCRIPTION 13
A. Industrial Processes in the Shipbuilding and Repair Industry 13
1. Shipyard Layout 13
2. Docking and Launching Facilities 14
3. Ship Construction Processes 16
4. Major Production Facilities 18
5. Welding 19
6. Ship Repairing Processes 20
7. Support Shops and Services 21
8. Solvent Cleaning and Degreasing 23
9. Surface Preparation 24
10. Painting Processes 28
B. Raw Material Inputs and Pollutant Outputs 33
1. Surface Preparation 33
2. Painting 34
3. Metal Plating and Surface Finishing 35
4. Fiberglass Reinforced Construction 36
5. Machining and Metalworking 36
6. Solvent Cleaning and Degreasing 37
C. Management of Chemicals in Wastestream 40
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
IV. CHEMICAL RELEASE AND TRANSFER PROFILE 43
A. EPA Toxic Release Inventory for the Shipbuilding and Repair Industry 47
B. Summary of Selected Chemicals Released 52
C. Other Data Sources 57
D. Comparison of Toxic Release Inventory Between Selected Industries 59
V. POLLUTION PREVENTION OPPORTUNITIES 63
A. Surface Preparation 64
B. Painting and Coating 65
1. Application Equipment 65
2, Alternative Coatings 69
3. Good Operating Practices 70
C. Metal Plating and Surface Finishing . 71
D. Fiberglass Reinforced Construction 72
E, Solvent Cleaning and Degreasing 73
F. Machining and Metalworking 78
VI. SUMMARY OF FEDERAL STATUTES AND REGULATIONS 81
A, General Description of Major Statutes 81
B. Industry Specific Requirements 93
C. Pending and Proposed Regulatory Requirements 97
VII. COMPLIANCE AND ENFORCEMENT HISTORY 99
A. Shipbuilding and Repair Industry Compliance History 103
B. Comparison of Enforcement and Compliance Activity Between Selected Industries
105
C. Review of Major Legal Actions 110
1. Review of Major Cases 110
2. Supplementary Environmental Projects (SEPs) 110
VIII. COMPLIANCE ASSURANCE ACTIVITIES AND INITIATIVES Ill
A. Sector-related Environmental Programs and Activities Ill
B. EPA Voluntary Programs 114
C. Trade Associations 120
IX. CONTACTS/ACKNOWLEDGMENTS/RESOURCE MATERIALS 123
Appendix A: Instructions for downloading this notebook A-l
Sector Notebook Project
VI
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
LIST OF FIGURES
Figure 1: Profiles of Ship Types 5
Figure 2: Geographic Distribution of Shipyards 8
Figure 3: Example Shipyard Layout 15
Figure 4: General Ship Manufacturing Levels 17
Figure 5: Typical Pickling Tank Arrangement 27
Figure 6: Summary of TRI Releases and Transfers by Industry 60
LIST OF TABLES
Table 1: Facility Size Distribution for the Shipbuilding and Repair Industry 7
Table 2: Top U.S. Companies with Shipbuilding and Repair Operations 9
Table 3: Material Inputs and Potential Pollutant Outputs for the
Shipbuilding and Repair Industry 39
Table 4: Source Reduction and Recycling Activity for Shipyards 41
Table 5: 1995 TRI Releases for Shipbuilding and Repair Facilities 49
Table 6: 1995 TRI Transfers for Shipbuilding and Repair Facilities 50
Table 7:Top 10 TRI Releasing Shipbuilding and Repair Facilities Reporting Only SIC 3731 ..51
Table 8: Top 10 TRI Releasing Facilities Reporting Only SIC 3731
or SIC 3731 and Other SIC codes 52
Table 9: Air Pollutant Releases (tons/year) 58
Table 10: Toxics Release Inventory Data for Selected Industries 61
Table 11: Five-Year Enforcement and Compliance Summary for the
Shipbuilding and Repair Industry 103
Table 12: Five-Year Enforcement and Compliance Summary for Selected Industries 106
Table 13: One-Year Enforcement and Compliance Summary for Selected Industries 107
Table 14: Five-Year Inspection and Enforcement Summary by Statute for Selected Industries 108
Table 15: One-Year Inspection and Enforcement Summary by Statute for Selected Industries 109
Table 16: Shipbuilding and Repair Industry Participation in the 33/50 Program 115
Sector Notebook Project
vn
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
LIST OF ACRONYMS
AFS - AIRS Facility Subsystem (CAA database)
AIRS - Aerometric Information Retrieval System (CAA database)
BEFs - Boilers and Industrial Furnaces (RCRA)
BOD - Biochemical Oxygen Demand
CAA - Clean Air Act
CAAA - Clean Air Act Amendments of 1990
CERCLA - Comprehensive Environmental Response, Compensation, and Liability Act
CERCLIS - CERCLA Information System
CFCs - Chlorofluorocarbons
CO - Carbon Monoxide
COD - Chemical Oxygen Demand
CSI - Common Sense Initiative
CWA - Clean Water Act
D&B - Dun and Bradstreet Marketing Index
ELP - Environmental Leadership Program
EPA - United States Environmental Protection Agency
EPCRA - Emergency Planning and Community Right-to-Know Act
FIFRA - Federal Insecticide, Fungicide, and Rodenticide Act
FINDS - Facility Indexing System
HAPs - Hazardous Air Pollutants (CAA)
HSDB - Hazardous Substances Data Bank
IDEA - Integrated Data for Enforcement Analysis
LDR - Land Disposal Restrictions (RCRA)
LEPCs - Local Emergency Planning Committees
MACT - Maximum Achievable Control Technology (CAA)
MCLGs - Maximum Contaminant Level Goals
MCLs - Maximum Contaminant Levels
MEK - Methyl Ethyl Ketone
MSDSs - Material Safety Data Sheets
NAAQS - National Ambient Air Quality Standards (CAA)
NAFTA - North American Free Trade Agreement
NCDB - National Compliance Database (for TSCA, FIFRA, EPCRA)
NCP - National Oil and Hazardous Substances Pollution Contingency Plan
NEIC - National Enforcement Investigation Center
NESHAP - National Emission Standards for Hazardous Air Pollutants
NO2 - Nitrogen Dioxide
NOV - Notice of Violation
NOX - Nitrogen Oxides
NPDES - National Pollution Discharge Elimination System (CWA)
NPL - National Priorities List
NRC - National Response Center
Sector Notebook Project
via
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
NSPS - New Source Performance Standards (CAA)
OAR - Office of Air and Radiation
OECA - Office of Enforcement and Compliance Assurance
OPA- Oil Pollution Act
OPPTS - Office of Prevention, Pesticides, and Toxic Substances
OSHA - Occupational Safety and Health Administration
OSW- Office of Solid Waste
OSWER - Office of Solid Waste and Emergency Response
OW - Office of Water
P2 - Pollution Prevention
PCS - Permit Compliance System (CWA Database)
POTW - Publicly Owned Treatments Works
RCRA - Resource Conservation and Recovery Act
RCRIS - RCRA Information System
SARA - Superfund Amendments and Reauthorization Act
SDWA - Safe Drinking Water Act
SEPs - Supplementary Environmental Projects
SERCs - State Emergency Response Commissions
SIC - Standard Industrial Classification
SO2 - Sulfur Dioxide
SOX - Sulfur Oxides
TOC - Total Organic Carbon
TRI - Toxic Release Inventory
TRIS - Toxic Release Inventory System
TCRIS - Toxic Chemical Release Inventory System
TSCA - Toxic Substances Control Act
TSS- Total Suspended Solids
UIC - Underground Injection Control (SDWA)
UST - Underground Storage Tanks (RCRA)
VOCs - Volatile Organic Compounds
Sector Notebook Project
IX
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
Page x intentionally left blank.
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
SHIPBUILDING AND REPAIR INDUSTRY
(SIC 3731)
I. INTRODUCTION TO THE SECTOR NOTEBOOK PROJECT
I.A. Summary of the Sector Notebook Project
Integrated environmental policies based upon comprehensive analysis of air,
water, and land pollution are a logical supplement to traditional single-media
approaches to environmental protection. Environmental regulatory agencies
are beginning to embrace comprehensive, multi-statute solutions to facility
permitting, enforcement and compliance assurance, education/ outreach,
research, and regulatory development issues. The central concepts driving the
new policy direction are that pollutant releases to each environmental medium
(air, water, and land) affect each other, and that environmental strategies must
actively identify and address these inter-relationships by designing policies for
the "whole" facility. One way to achieve a whole facility focus is to design
environmental policies for similar industrial facilities. By doing so,
environmental concerns that are common to the manufacturing of similar
products can be addressed in a comprehensive manner. Recognition of the
need to develop the industrial "sector-based" approach within the EPA Office
of Compliance led to the creation of this document.
The Sector Notebook Project was originally initiated by the Office of
Compliance within the Office of Enforcement and Compliance Assurance
(OECA) to provide its staff and managers with summary information for
eighteen specific industrial sectors. As other EPA offices, states, the regulated
community, environmental groups, and the public became interested in this
project, the scope of the original project was expanded to its current form.
The ability to design comprehensive, common sense environmental protection
measures for specific industries is dependent on knowledge of several inter-
related topics. For the purposes of this project, the key elements chosen for
inclusion are: general industry information (economic and geographic); a
description of industrial processes; pollution outputs; pollution prevention
opportunities; Federal statutory and regulatory framework; compliance
history; and a description of partnerships that have been formed between
regulatory agencies, the regulated community, and the public.
For any given industry, each topic listed above could alone be the subject of
a lengthy volume. However, in order to produce a manageable document, this
project focuses on providing summary information for each topic. This
format provides the reader with a synopsis of each issue, and references where
more in-depth information is available. Text within each profile was
researched from a variety of sources, and was usually condensed from more
detailed sources pertaining to specific topics. This approach allows for a wide
coverage of activities that can be further explored based upon the citations
Sector Notebook Project
1
November 1997
-------
Shipbuilding and Repair Industry
Sector Notebook Project
and references listed at the end of this profile. As a check on the information
included, each notebook went through an external review process. The Office
of Compliance appreciates the efforts of all those that participated in this
process and enabled us to develop more complete, accurate and up-to-date
summaries. Many of those who reviewed this notebook are listed as contacts
in Section IX and may be sources of additional information. The individuals
and groups on this list do not necessarily concur with all statements within this
notebook.
I.B. Additional Information
Providing Comments
OECA's Office of Compliance plans to periodically review and update the
notebooks and will make these updates available both in hard copy and
electronically. If you have any comments on the existing notebook, or if you
would like to provide additional information, please send a hard copy and
computer disk to the EPA Office of Compliance, Sector Notebook Project,
401 M St., SW (2223-A), Washington, DC 20460. Comments can also be
uploaded to the Enviro$en$e World Wide Web for general access to all users
of the system. Follow instructions in Appendix A for accessing this system.
Once you have logged in, procedures for uploading text are available from the
on-line Enviro$en$e Help System.
Adapting Notebooks to Particular Needs
The scope of the industry sector described in this notebook approximates the
national occurrence of facility types within the sector. In many instances,
industries within specific geographic regions or states may have unique
characteristics that are not fully captured in these profiles. The Office of
Compliance encourages state and local environmental agencies and other
groups to supplement or re-package the information included in this notebook
to include more specific industrial and regulatory information that may be
available. Additionally, interested states may want to supplement the
"Summary of Applicable Federal Statutes and Regulations" section with state
and local requirements. Compliance or technical assistance providers may
also want to develop the "Pollution Prevention" section in more detail. Please
contact the appropriate specialist listed on the opening page of this notebook
if your office is interested in assisting us in the further development of the
information or policies addressed within this volume. If you are interested in
assisting in the development of new notebooks for sectors not covered in the
original eighteen, please contact the Office of Compliance at 202-564-2395.
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry Introduction
H. INTRODUCTION TO THE SHIPBUILDING AND REPAIR INDUSTRY
This section provides background information on the size, geographic
distribution, employment, production, sales, and economic condition of the
ship building and repair industry. Facilities described within this document are
described in terms of their Standard Industrial Classification (SIC) codes.
n.A. Introduction, Background, and Scope of the Notebook
The shipbuilding and repair industry builds and repairs ships, barges, and other
large vessels, whether self-propelled or towed by other craft. The industry
also includes the conversion and alteration of ships and the manufacture of
offshore oil and gas well drilling and production platforms. The shipbuilding
and repair industry described in this notebook is categorized by the Office of
Management and Budget (OMB) under the Standard Industrial Classification
(SIC) code 3731. This notebook does not cover the related sector SIC 3732
Boat Building and Repairing. The boat building and repair industry is
engaged in the manufacturing and repairing of smaller non-ocean going
vessels primarily used for recreation, fishing, and personnel transport. OMB
is in the process of changing the SIC code system to a system based on similar
production processes called the North American Industrial Classification
System (NAICS). (In the NAIC system, shipbuilding and repair facilities are
all classified as NAIC 336611.)
II.B. Characterization of the Shipbuilding and Repair Industry
Shipyards, or facilities that build and/or repair ships, operate on a job basis.
With the exception of about nine U.S. Navy owned shipyards (which are not
included in SIC 3731), the U.S. shipbuilding and repair industry is privately
owned. Unlike most other industries, each year only a small number of
valuable orders are received that often take years to fill. Orders for ships and
ship repairs are primarily placed by companies or the federal government.
Companies that place orders often include commercial shipping companies,
passenger and cruise companies, ferry companies, petrochemical companies,
commercial fishing companies, and towing and tugboat companies. The
principal federal government agencies placing shipbuilding and repair orders
include the Naval Sea Systems Command, the Military Sealift Command, the
Army Corps of Engineers, the U.S. Coast Guard, the National Oceanic and
Atmospheric Administration, the National Science Foundation, and the
Maritime Administration.
EL.B.1. Product Characterization
Shipyards are often categorized into a few basic subdivisions either by type of
operations (shipbuilding or ship repairing), by type of ship (commercial or
military), and shipbuilding or repairing capacity (first-tier or second-tier).
Sector Notebook Project 3 November 1997
-------
Shipbuilding and Repair Industry
Introduction
Ships themselves are often classified by their basic dimensions, weight
(displacement), load-carrying capacity (deadweight), or their intended service.
In the U.S., there are considerable differences between shipyard operations
when constructing ships for commercial purposes and when constructing ships
for the military.
Commercial Ships
An important difference between commercial ships and military ships is that
the commercial ship market is much more cost competitive. Unlike the
military market, the commercial ship market must also compete
internationally. The cost of building and maintaining a ship must be low
enough such that the owners can make a reasonable profit. This has a
significant impact on the manner in which commercial ships are built and
repaired. The intense global competition in this industry is the main reason
that since World War II, U.S. shipyards have produced relatively few
commercial ships. In this regard, since 1981 the U.S. shipyards received less
than one percent of all commercial orders for large ocean going vessels in the
world, and no commercial orders for large ocean going cause ships (ASA,
1997).
Commercial ships can be subdivided into a number of classes based on their
intended use. Commercial ship classes include dry cargo ships, tankers, bulk
carriers, passenger ships, fishing vessels, industrial vessels, and others (Storch
et al., 1995). Dry cargo ships include break bulk, container, and roll-on/roll-
off types. Profiles of a number of ship types are shown in Figure 1.
Military Ships
Military ship orders have been the mainstay of the industry for many years.
The military ship market differs from the commercial market in that the major
market drivers are agency budgets as set by government policy.
The military ship market can be divided into combatant ships and ships that
are ordered by the government, but are built and maintained to commercial
standards rather than military standards. (Storch et al., 1995) Combatant
ships are primarily ordered by the U.S. Navy and include surface combatants,
submarines, aircraft carriers, and auxiliaries. Government owned non-
combatant ships are mainly purchased by the Maritime Administration's
National Defense Reserve Fleet (NDRF) and the Navy's Military Sealift
Command (MSC). Other government agencies that purchase non-combatant
ships are the Army Corp of Engineers, National Oceanic and Atmospheric
Administration, and the National Science Foundation. Such ships often
include cargo ships, transport ships, roll on/roll off ships, crane ships, tankers,
patrol ships, and ice breakers.
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry
Introduction
Figure 1: Profiles of Ship Types
1
r FT"
P^
\_
J "v.
Hri
i,
MACHY
SPACE
FO
' H W
TANK NO. 5
Ŗ.^ HH__2=?
TANK NO. 4
TANK NO. 3
TANK NO. 2
TANK NO. 1
M
L
D.T.
NO. 1
a
s.wA
BALLIN-
1-
TANKER
N0 e ! HOLD | HOLD ! HOLD | Hnl n I Mr> ,
N0-6 I N0.5 I N0.4I N0.3 I HOLD I NO'2
HOLD
NO. 1
BALLAST
BALL
-
BALLAST
BULK CARRIER
FISHING VESSEL
HANGER
MAGAZINE
SONAR
COMBATANT (SURFACE)
Source: Adapted from Ship Production, Storch, et. al., 1995.
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry
Introduction
Ship Repairing
Ship repair operations include repainting, overhauls, ship conversions, and
alterations. Almost all shipyards that construct new ships also do major ship
repairs. In addition, about 200 shipyards concentrate solely on ship repairing
and do not have the necessary facilities to construct ships (Storch et. al.,
1995). Only about 31 shipyards have "major dry-docking facilities" capable
of removing ships over 122 meters in length from the water (MARAD, 1995).
Dry-docking facilities, or "full service" repair yards, allow repairs and
maintenance below a ship's water line. The remaining repair yards can either
dry-dock vessels under 122 meters or have no dry-docking facilities.
Shipyards with no dry-docking facilities, called topside yards, perform above-
water ship and barge repairs. Such facilities generally employ fewer than 100
people and are often capable of transporting workers and materials to the ship
(Storch etal., 1995).
First and Second-Tier Shipyards
U.S. shipyards are also classified by MARAD as either first-tier shipyards or
second-tier shipyards. First-tier shipyards make up the "U.S. major
shipbuilding base" (MSB). As defined by MARAD and the Department of
Transportation in "Report on Survey of U.S. Shipbuilding and Repair
Facilities," 1995, the MSB is comprised of privately owned shipyards that are
open and have at least one shipbuilding position capable of accommodating
a vessel of 122 meters (383 feet) or more. With few exceptions, these
shipyards are also major repair facilities with drydocking capabilities (U.S.
Industrial Outlook, 1994). In 1996 there were 16 of these major shipbuilding
facilities in the U.S.
Second-tier shipyards are comprised of the many small and medium-size
shipyards that construct and repair smaller vessels (under 122 meters) such as
military and non-military patrol boats, fire and rescue vessels, casino boats,
water taxis, tug and towboats, off-shore crew and supply boats, ferries, fishing
boats, and shallow draft barges (MARAD, 1996). A-number of second-tier
shipyards are also able to make topside repairs to ships over 122 meters in
length.
II.B.2. Industry Size and Geographic Distribution
According to the 1992 Census of Manufacturers data (the most recent Census
data available), there were approximately 598 shipbuilding and repairing yards
under SIC code 3731. The payroll for this year totaled $3.6 billion for a
workforce of 118,000 employees, and value of shipments totaled $10.6
billion. Based on the Census of Manufacturers data, the industry is very labor
intensive. The value of shipments per employee (a measure of labor
intensiveness) is $90,000, which is about one third that of the steel
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry
Introduction
manufacturing industry ($245,000 per employee) and only five percent that
of the petroleum refining industry ($1.8 million per employee).
According to the Census of Manufacturers, most shipyards are small. About
72 percent of the shipyards employ fewer than 50 people in 1992 (see Table
1). It is the relatively few (but large) shipyards, however, that account for the
majority of the industry's employment and sales. Less than five percent of the
shipyards account for almost 80 percent of the industry's employment and
sales.
Table 1: Facility Size Distribution for the Shipbuilding and Repair Industry
Employees
per Facility
1-9
10-49
50-249
250-499
500-2499
2500 or more
Total
Facilities
Number of
Facilities
230
203
113
25
21
6
598
Percentage of
Facilities
38%
34%
19%
4%
4%
1%
100%
Employees
Number of
Employees
900
4,600
12,900
8,200
17,100
74,600
118,300
Percentage of
Employees
1%
4%
11%
7%
14%
63%
100%
Source: U.S. Department of Commerce, Census of Manufacturers, 1992.
Geographic Distribution
The geographic distribution of the shipbuilding and repair industry is
concentrated on the coasts. Other important areas are the southern
Mississippi River and Great Lakes regions. According to the 1992 U.S.
Census of Manufacturers, there are shipyards in 24 states. The top states in
order are: Florida, California, Louisiana, Texas, Washington, and Virginia.
Together, these states account for about 56 percent of U.S. shipyards. Figure
2 shows the U.S. distribution of facilities based on data from the Census of
Manufacturers.
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry
Introduction
Figure 2: Geographic Distribution of Shipyards
Source; U.S. Census of Manufacturers, 1992.
Dun & Bradstreet'sMillion Dollar Directory, compiles financial data on U.S.
companies including those operating within the shipbuilding and repair
industry. Dun & Bradstreet ranks U.S. companies, whether they are a parent
company, subsidiary or division, by sales volume within their assigned 4-digit
SIC code. Readers should note that: (1) companies are assigned a. 4-digit
SIC that resembles their principal industry most closely; and (2) sales figures
include total company sales, including subsidiaries and operations (possibly
not related to shipbuilding and repair). Additional sources of company
specific financial information include Standard & Poor's Stock Report
Services, Ward's Business Directory of U.S. Private and Public Companies.,
Moody's Manuals, and annual reports.
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry
Introduction
Table 2: Top U.S. Companies with Shipbuilding and Repair Operations
Rank3
1
2
3
4
5
6
7
8
9
10
Company*
Newport News Shipbuilding and Dry Dock Co.
Newport News, VA
Ingalls Shipbuilding Inc. - Pascagoula, MS
General Dynamics Corp. (Electric Boat) - Groton, CT
Bath Iron Works Corp. - Bath, ME
Avondale Industries Inc., Shipyards Division
New Orleans, LA
National Steel and Shipbuilding Co. (NASSCO)
San Diego, CA
Trinity Marine Group - Gulfport, MS
Norfolk Shipbuilding and Drydock Corp. - Norfolk, VA
American Commercial Marine Service Co. -
Jeffersonville, IN
Atlantic Marine - Jacksonville, FL
1996 Sales
(millions of dollars)
1,756
1,125
980
850
576
500
400
212
166
121
Note: aNot all sales can be attributed to the companies' shipbuilding and repair operations.
b Companies shown listed .SIC 373 1 .
Source: Dunn & Bradstreet's Million Dollar Directory - 1996.
II.B.3. Economic Trends
General Economic Health
In general, the U.S. shipbuilding and repair industry is in a depressed state.
At its height in the mid-1970s, the industry held a significant portion of the
international commercial market while maintaining its ability to supply all
military orders. Since then, new ship construction, the number of shipbuilding
and repair yards, and overall industry employment have decreased sharply.
The decline has been especially severe in the construction of commercial
vessels at first tier shipyards which fell from about 77 ships (1,000 gross tons
or more) per year in the mid-1970s to only about eight ships total through the
late 1980s and early 1990s. In the 1980s, the industry's loss of the
commercial market share was somewhat offset by a substantial increase in
military ship orders. Following the naval expansion, however, the industry
Sector Notebook Project
November 1997
-------
Shipbuilding and Repair Industry
Introduction
entered the 1990s with a much smaller military market and a negligible share
of the commercial market.
The second tier shipyards and the ship repairing segment of the industry has
also suffered in recent decades; however, its decline has not been as drastic.
The second tier shipyards, comprised of small and medium size facilities, were
able to keep much of their mainly commercial market share. These shipyards
build vessels used on the inland and coastal waterways which by law must be
built in the U.S.
The U.S. shipbuilding and repairing industry's loss of the commercial
shipbuilding market has been attributed to a number of factors. First, a world
wide shipbuilding boom in the 1970s created a large quantity of surplus
tonnage which suppressed demand for years. Another significant factor
reducing U.S. shipbuilding and repair industry's ability to compete
internationally are the substantial subsidies that many nations provide to their
domestic shipbuilding and repair industries. Also, until 1980, over 40 percent
of U.S.-built merchant ships received Construction Differential Subsidies
(CDS) based on the difference between foreign and domestic shipbuilding
costs. The program was eliminated in 1981, further reducing the industry's
competitiveness.
Another trend in the industry has been a movement toward consolidation. In
recent years many shipyards have been closed or purchased by larger ship
building and repair companies.
Government Influences
The U.S. shipbuilding and repair industry is highly dependent on the Federal
Government, its primary market, for its continued existence. Direct purchases
of military ships and military ship repair services by the Federal Government
account for about 80 percent of the industry's sales (Census of
Manufacturers, 1992). In addition, the industry receives a small amount of
support through a few federal tax incentives and financing assistance
programs.
MARAD provides assistance to U.S. ship owners through the Federal Ship
Mortgage Insurance (Title XI) and Capital Construction Fund programs.
Under Title XI, the Federal Government guarantees repayment of private
sector mortgage obligations for operators that purchase ships from U.S.
shipyards. Although the Capital Construction Fund has not been funded in
recent years, in the past it has allowed operators to establish tax-deferred
funds for procuring new or reconstructed vessels from U.S. shipyards (U.S.
Industrial Outlook, 1994). Another program, MARITECH, is jointly funded
by the Federal Government and industry and is administered by the
Department of Defense's Advanced Research Projects Agency (ARPA), in
Sector Notebook Project
10
November 1997
-------
Shipbuilding and Repair Industry
Introduction
collaboration with MARAD. MARITECH provides matching Government
funds to encourage the shipbuilding industry to direct and lead in the
development and application of advanced technology to improve its
competitiveness and to preserve its industrial base. (For more information on
MARITECH, see Section VIII.A.)
Such outside support is not unique to the U.S. Worldwide, many nations
provide substantial subsidies to their shipbuilding and repair industries. The
governments of most trading nations support their domestic industries because
they believe that it is in their best interest economically and militarily.
Maintaining a shipbuilding industrial base helps to .safeguard a nation's control
over getting its products to foreign markets, and ensures that it will have the
means to replace its merchant or naval fleets in a time of national emergency.
As a result of these external influences, the industry does not behave
according to the simple economic supply and demand model. Rather, the
policies of national governments in conjunction with economic forces dictate
economic activity in this sector.
Like many other nations, the U.S. has a policy of maintaining a shipbuilding
and repair industrial base that can be expanded in time of war (Storch, et al.,
1995). National policy, therefore, will continue to be the primary factor
influencing the industry's economic trends in the U.S.
Domestic Market
The military still is, and will continue to be, the primary source of work for the
industry. However, the Navy's new ship procurement has sharply declined
since the accelerated Navy ship construction in the 1980s. This work is
expected to continue to decline at least through the remainder of the 1990s.
Some industry analysts predict that a number of the first tier shipyards, which
fill most of the military orders, will close in coming years.
While military shipbuilding is on the decline, the forecast for the commercial
sector is more promising. Domestic demand for commercial shipbuilding and
repair has increased dramatically in recent years and is expected to continue
to increase throughout the 1990s. There have been significant increases in
barge construction in recent years. In 1996, 1,070 hopper barges were
delivered by U.S. shipyards, more than double the number delivered in 1995.
This number is expected to grow to over 1,500 in 1997. Demand is also
expected to be particularly high for tankers; especially for new double-hull
tankers in response to the 1990 Oil Pollution Act requirements.
Sector Notebook Project
11
November 1997
-------
Shipbuilding and Renair Industry
Introduction
International Market
Currently, the U.S. holds less than one half of one percent of the world market
share of commercial shipbuilding and repair. South Korea and Japan currently
dominate the world market. Each holds about 30 percent of the gross
tonnage of merchant ships on order. Germany, Poland, Italy, and China each
hold between four and five percent of the commercial market. However, a
number of major commercial ship orders were received by first and second tier
shipyards in 1995 and 1996. The chief driving forces for this increase in U.S.
commercial ship production is a general increase in worldwide demand
stemming from an aging merchant fleet and an improving global economy.
The elevated demand is expected to continue over the next three to five years.
Through the OECD in December 1994, an agreement was reached by the
Commission of the European Communities, and the Governments of Finland,
Japan, South Korea, Norway, Sweden and the United States to establish more
normal competitive conditions in the shipbuilding industry. The agreement is
expected to remove government support and unfair pricing practices in the
industry. If and when this agreement is implemented, it is expected to have
a positive impact on the world market by discouraging "ship dumping"
practices that are believed to have been damaging shipbuilders. It is hoped
that the agreement will also bring to light the actual economic advantage and
competitiveness of the various countries and individual ship builders. In
addition, the shipowners will no longer be able to buy ships at subsidized or
dumped prices reducing the likelihood of speculative buying.
Recognizing the unique need for the Administration, Congress and the
shipbuilding industry to work together in order for the U.S. to become
competitive once again in the international shipbuilding market, President
Clinton submitted a Report to Congress entitled "Strengthening America's
Shipyards: A Plan for Competing in the International Market." In that report,
the President outlined a number of steps to be taken "to ensure a successful
transition to a competitive industry in a truly competitive marketplace." The
Administration's five step plan included:
Ensuring Fair International Competition
Improving Competitiveness
Eliminating Unnecessary Government Regulation
Financing Ship Sales Through Title XI Loan Guarantees, and
Assisting International Marketing.
Sector Notebook Project
12
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
INDUSTRIAL PROCESS DESCRIPTION
This section describes the major industrial processes within the shipbuilding
and repair industry, including the materials and equipment used and the
processes employed. The section is designed for those interested in gaining
a general understanding of the industry, and for those interested in the inter-
relationship between the industrial process and the topics described in
subsequent sections of this profile ~ pollutant outputs, pollution prevention
opportunities, and Federal regulations. This section does not attempt to
replicate published engineering information that is available for this industry.
Refer to Section IX for a list of resource materials and contacts that are
available.
This section specifically contains a description of commonly used production
processes, associated raw materials, the by-products produced or released,
and the materials either recycled or transferred off-site. This discussion,
coupled with schematic drawings of the identified processes, provide a
concise description of where wastes may be produced in the process. This
section also describes the potential fate (via air, water, and soil pathways) of
these waste products.
IILA. Industrial Processes in the Shipbuilding and Repair Industry
The shipbuilding and repair industry has characteristics of both a
manufacturing industry and the construction industry. The industry uses and
produces a wide variety of manufactured components in addition to basic
construction materials. As with the construction industry, shipbuilding and
repair requires many workers with many different skills all working in an
established organization structure.
New ship construction and ship repairing have many industrial processes in
common. They both apply of essentially the same manufacturing practices,
processes, facilities, and support shops. Both ship repair and new
construction work require highly skilled labor because many of the operations
(especially in ship repair) have limited potential for automation. Both require
excellent planning, engineering, and interdepartmental communications. New
ship construction, however, generally requires a greater amount of
organization because of the size of the workforce, size of the workload,
number of parts, and the complexity of the communications (e.g., production
plans and schedules) surrounding the shipbuilding work-flow (NSRP, 1993).
III.A.I. Shipyard Layout
Shipbuilding and repair facilities are generally made up of several specific
facilities laid out to facilitate the flow of materials and assemblies. Most
shipyards were built prior to the Second World War. Changes in shipyard
Sector Notebook Project
13
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
layout were made piecemeal, responding to advances in technology, demands
for different types of ships, and availability of land and waterfront. As a
result, there is no typical shipyard layout. There are, however, a number of
specific facilities that are common to most large shipyards. These facilities
include: drydocks, shipbuilding positions, piers and berthing positions,
workshops (e.g., machine, electrical, pipe, assembly, paint and blast,
carpenter, and sheet metal shops), work areas (steel storage, platen lines, and
construction areas), warehouses, and offices. A shipyard layout containing
many of these facilities is shown in Figure 3.
EQ.A.2. Docking and Launching Facilities
There are few shipyards that have the capability to construct or repair vessels
under cover; in most cases shipbuilding and repair are done largely out of
doors. Much of this work is done over, in, under, or around water, which can
inadvertently receive a portion of shipyard pollutant outputs. The docking
facilities, or the mechanisms used to remove ships from the water for repair
or to construct and launch ships, can affect waste generation and
management.
Ships can be either wet-docked or drydocked. A wet-dock or berth is a pier
or a wet slip position that a ship can dock next to and tie up. A ship that has
its entire hull exposed to the atmosphere is said to be drydocked. A number
of different drydocking and launching facilities exist including building ways,
floating drydocks, graving docks, and marine railways.
Building Ways
Building ways are used only for building ships and releasing them into the
adjacent waters. New ships are constructed and launched from one of two
main types of building ways: longitudinal end launch ways and side launch
ways (NSRP, 1993).
Floating Drydocks
Floating drydocks are floating vessels secured to land that have the ability to
be lowered under the water's surface in order to raise ships above the water
surface. Floating drydocks are generally used for ship repair, but in some
cases ship construction is performed. When the drydock is submerged by
filling ballast tanks with water, ships are positioned over bilge and keel blocks
located on the deck of the drydock. The ship's position over the drydock is
maintained while the ballast tanks are pumped out, which raises the dock and
the ship above the water surface (NSRP, 1993).
Sector Notebook Project
14
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Figure 3: Example Shipyard Layout
Source: Maritime Administration, Report on Survey of U.S. Shipbuilding and Repair Facilities, 1995.
Sector Notebook Project
15
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Graving Docks
Graving docks are man-made rectangular bays where water can be let in and
pumped out. Ships are floated into the dock area when the dock is full of
water. Water-tight gates are closed behind the ship and the water is pumped
from inside the dock area to the outside adjacent waters. Large pumping
systems are typically used to remove all but a few inches of the water.
Graving docks usually have a sloping dock floor which directs the water to
channels leading to smaller pumps which empty the final few inches of water
as well as any rain or water runoff which enters the dock (NSRP, 1993).
Marine Railways
Marine railways have the ability to retrieve and launch ships. They are similar
to end-launch building ways, but usually much smaller. Marine railways
essentially consist of a rail-car platform and a set of railroad tracks. The rails
are secured to an inclined cement slab that runs the full length of the way and
into the water to a depth necessary for docking ships. Motor and pulley
systems are located at the head of marine railways to pull the rail-car platform
and ship from the water (NSRP, 1993).
III.A.3. Ship Construction Processes
Most new ship construction projects are carried out using zone-oriented
methods, such as the hull block construction method (HBCM). In HBCM, the
ship structure is physically divided into a number of blocks. The definition of
hull blocks has an enormous impact on the efficiency of the ship construction.
Therefore, blocks are carefully designed to minimize work and to avoid
scheduling problems. Blocks are constructed and pieced together in five
general manufacturing levels. Figure 4 summarizes the various manufacturing
levels.
The first level involves the purchasing and handling of raw materials and
fabricating these materials into the most basic parts. The primary raw
materials include steel plates, bars, and structural members. Parts fabrication
or pre-assembling operations often involve cutting, shaping, bending,
machining, blasting, and painting of these materials. Fabricated parts include
steel plates and steel members used as structural parts, machined parts, piping,
ventilation ducts, electrical components (motors, lights, transformers, gauges,
etc.), and a wide variety of other miscellaneous parts. Parts fabrication is
carried out throughout the shipyard in a number of different shops and work
areas depending on the specific raw materials being handled (see Section
III.A.7 for a description of typical operations conducted in shipyard shops).
Level 2 of new ship construction involves the joining of different fabricated
parts from Level 1 into assembled parts. In the third level of manufacturing
Sector Notebook Project
16
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
the fabricated and/or assembled parts are fitted together into a sub-block
assembly which are in turn fitted together in Level 4 to form blocks. Blocks
are three dimensional sections of the ship and are the largest sections of the
ship to be assembled away from the erection site. Blocks are designed to be
stable configurations that do not require temporary support or reinforcement.
Often, at least one side of a block forms part of the outside hull of the ship.
Blocks are built and transported through the shipyard and welded together at
a building position where the ship is erected. The size of the blocks that a
shipyard can build is dependent on the shipyard capacity to assemble,
transport, and lift the blocks and units onto the ship under construction. In
Level 5 the ship is erected from the blocks (Storch, 1995).
Figure 4: General Ship Manufacturing Levels
LEVEL # 1
PURCHASING AND PHE-ASSEMBLY
A) PURCHASING OF RAW MATERIALS, ) TRANSFORM-
IMG THE MATERIALS INTO PARTS. (U., PLATE STEEL
INTO SHAPES AND HK INTO PIPE SPOOLS)
LEVEL #s 2 & 3
SUB-ASSEMBLY
JOINING THOSE PARTS PRODUCED AT LEVEL *1 INTO
LARGER SUB-ASSEMBLIES.
LEVEL # 4
ASSEMBLY AND OUTFITTING
JOINING PARTS AND SUB-ASSEMBLIES TOGETHER TO
FORM LARGE SECTION OF THE SHIP CALLED HULL
BLOCKS.
SYSTEM COMPLETION AND TEST AND TRIAL
INSTALLATION OF THE HULL BLOCK ONTO THE SHIP
UNDER CONSTRUCTION, THUS THE SHIP IN BHNa
ERECTED.
SYSTEMS ON THE SHIP (!Ģ. ELECTRICAL, HEATING
AND VENTILATION, PLUMBING, ETC.) ARE CONNECT-
ED TOGETHER, TESTED, AND TESTED BEFORE DELIV-
ERY TO THE CUSTOMER.
Source: Adapted from NSRP, Introduction to Production Processes and Facilities in the
Steel Shipbuilding and Repair Industry, 1993.
Another important aspect of ship construction is outfitting. Outfitting, which
involves the fabrication and installation of all the parts of a ship that are not
structural in nature, is carried out concurrently with the hull construction.
Outfit is comprised of the ship's plumbing, derricks, masts, engines, pumps,
ventilation ducts, electrical cable, stairs, doors, ladders, and other equipment.
The basic raw materials include pipes, sheet metal, electrical components, and
Sector Notebook Project
17
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
machinery. A zone-oriented method is typically used to assemble the parts
that form major machinery spaces onboard the ship including engine rooms,
pump rooms, and auxiliary machinery spaces. Parts or fittings can be
assembled onboard the ship during hull erection, on the blocks or subblocks,
or independent of the hull structure in units of similar parts (NSRP, 1993).
III.A.4. Major Production Facilities
Most shipbuilding yards have in common the following major facilities, work
areas, or specialized equipment.
Prime Line
Panel Lines
Platen Lines
The prime line is a large machine that blasts and primes (paints) ra.w steel
sheets, preparing them for production. Steel sheets, parts, and shapes enter
one end of the prime line, go through a blasting section, then through a
priming section. The primer is referred to as construction primer, and is used
to prevent corrosion during the production process. Section III. A. 9 discusses
surface preparation and coating operations in more detail (NSRP, 1993).
Panel lines typically consist of motor driven conveyors and rollers used to
move large steel plates together for joining. The use of panel lines introduced
manufacturing production line techniques into the steel shipbuilding industry.
Joining of plates involves the welding of the seams either on one side or two
sides. Two sided welding requires the panel line to be capable of turning the
steel plates over after one-side is welded. Vertical stifFeners are also welded
on the panel line often using automated welding machines. After welding,
excess steel is cut off using gas cutting equipment. Panel assemblies are
typically moved through the line with the aid of magnetic cranes (NSRP,
1993).
The platen lines (or platens) are the area in the shipyard where blocks are
assembled. Therefore, platens form assembly lines where the steel structures
of construction blocks are fabricated. Sub-assemblies from the panel line and
plate shop are brought together at the platen and assembled into blocks. The
platen mainly provides locations for sub-assembly construction, block layout,
tack-welding, and final weld out. The platen lines are serviced by welding and
steel cutting equipment and cranes for materials movement (NSRP, 1993).
Sector Notebook Project
18
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Rolls
Pin Jigs
Rolls are large facilities that bend and shape steel plates into curved surface
plates for the curved portion of the hull. Rolls consist of large cylindrical steel
shafts and a motor drive. Rolls vary greatly in size and technology from
shipyard to shipyard. Some of the newer rolls are computer controlled, while
the older machines are manually operated (NSRP, 1993).
Pin jigs are platen lines used to assemble the curved blocks that form the
outside of the hull's curved surface. The pin jig is simply a series of vertical
screw jacks that support curved blocks during construction. A pin jig is set
up specifically for the curved block under construction. The jig heights are
determined from the ship's engineering drawings and plans (NSRP, 1993).
Rotary Tables
Rotary tables are facilities that hull blocks are set into and which mechanically
rotate the block. The ability to easily rotate an entire block in a single location
reduces the number of time-consuming crane lifts that would otherwise be
needed. Rotary tables also exploit the increased efficiencies experienced when
workers are able to weld on a vertical line (down hand). Down hand welding
provides a higher quality weld with higher efficiency rates. Turn tables are
also used for outfitting materials on the block because of easier access to
outfitting locations (NSRP, 1993).
Materials Handling
Materials handling is an important aspect of efficient shipbuilding.
Considerable coordination is needed between materials delivery and the
production schedule. Materials need to be delivered to the proper location in
the shipyard at the proper time to be installed on the construction block.
Typical materials handling equipment includes conveyors, cranes, industrial
vehicles (e.g., forklifts, flatbeds, carts, special lift vehicles, etc.), and
containers (NSRP, 1993).
m.A.5. Welding
The structural framework of most ships is constructed of various grades of
mild and high strength steel. Aluminum and other nonferrous materials are
used for some superstructures (deck-houses) and other areas requiring
specific corrosion resistance and structural requirements. However, other
common materials such as stainless steel, galvanized steel, and copper nickel
alloys, are used in far less quantities than steel (ILO, 1996).
Sector Notebook Project
19
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
The primary raw material for ship construction is steel plate. Steel plates are
typically cut to the desired size by automatic burners before being welded
together to form the structural components of the vessel.
Shipyard welding processes are performed at nearly every location in the
shipyard. The process involves joining metals by bringing the adjoining
surfaces to extremely high temperatures to be fused together with a molten
filler material. An electric arc or gas flame are used to heat the edges of the
joint, permitting them to fuse with molten weld fill metal in the form of an
electrode, wire, or rod. There are many different welding techniques used by
the industry. Most welding techniques can be classified as either electric arc
or gas welding, with electric arc being the most common (ELO, 1996).
An important factor impacting the strength of welds is arc shielding, isolating
the molten metal weld pool from the atmosphere. At the extremely high
temperatures used in welding, the molten metal reacts rapidly with oxygen and
nitrogen in the atmosphere which decreases the weld strength. To protect
against this weld impurity and ensure weld quality, shielding from the
atmosphere is required. In most welding processes, shielding is accomplished
by addition of a flux, a gas, or a combination of the two. Where a flux
material is used, gases generated by vaporization and chemical reaction at the
electrode tip result in a combination of flux and gas shielding that protect the
weld from the atmosphere. The various types of electric arc welding (shielded
metal arc, submerged arc, gas metal arc, gas tungsten arc, flux core airc, and
plasma-arc) all use different methods to accomplish arc shielding (TLO, 1996).
I1I.A.6. Ship Repairing Processes
Ship repair generally includes all ship conversions, overhauls, maintenance
programs, major damage repairs, and minor equipment repairs. Although
specific repair methods vary from job to job, many of the operations are
identical to new ship construction operations. Repair operations, however,
are typically on a smaller scale and are performed at a faster pace. Jobs can
last anywhere from one day to over a year. Repair jobs often have severe time
constraints requiring work to be completed as quickly as possible in order to
get the ships back in service. In many cases, piping, ventilation, electrical, and
other machinery are prefabricated prior to the ship's arrival. Often, repair jobs
are an emergency situation with very little warning, which makes ship repair
a fast moving and unpredictable environment. Typical maintenance and repair
operations include:
Blasting and repainting the ship's hull, freeboard, superstructure, and
interior tanks and work areas
Major rebuilding and installation of machinery such as diesel engines,
turbines, generators, pump stations, etc.
Sector Notebook Project
20
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Systems overhauls, maintenance, and installation (e.g., piping system
flushing, testing, and installation)
System replacement and new installation of systems such as
navigational systems, combat systems, communication systems,
updated piping systems, etc.
Propeller and rudder repairs, modification, and alignment
Creation of new machinery spaces through cut outs of the existing
steel structure and the addition of hew walls, stiffeners, vertical,
webbing, etc.
In addition, some larger shipyards are capable of large repair and conversion
projects that could include: converting supply ships to hospital ships, cutting
a ship in half and installing a new section to lengthen the ship,'replacing
segments of a ship that has run aground, completing rip-out, structural
reconfiguration and outfitting of combat systems, major remodeling of ships'
interiors or exteriors (NSRP, 1993).
IH.A.7. Support Shops and Services
Shipyards typically have a number of support shops that either process
specific raw materials (e.g., pipes, electric, sheet metal, machinery, plates,
paint, etc.) or provide specialty services (e.g., carpentry, maintenance,
materials transporting, warehousing, etc.). In many ways, support shops are
small manufacturers producing goods to support the production effort
(NSRP, 1993). Common shipbuilding and repair yard support shops and
services are described below.
Pipe Shop
The pipe shop is responsible for manufacturing and assembling piping systems.
Piping systems are the largest outfitting task in shipbuilding. Small pipe
sections known as "pipe spools" are assembled in the pipe shop and
transported to the stages of construction (i.e., assembly, on-block, on-unit,
and on-board). Pipe spools are shaped and manufactured per engineering
design, are scheduled for construction, and sent to the various stages for
installation. Many pipe shops will tag the spools to identify the location for
installation on the block and ship. A typical ship may have anywhere from
10,000 to 25,000 pipe spools. Some of the processes in the pipe shop
include: pipe welding, pipe bending, flux removal, grit-blast, pickling,
painting, galvanizing, and pressure testing. Some of the equipment used by
the pipe shop are as follows: pipe welders, lathes, pipe cutting saws, shears,
grinders, chippers, hole cutters, pipe benders, pickling tanks, and
transportation equipment (NSRP, 1993).
Sector Notebook Project
21
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Machine Shop
The machine shop serves the entire shipyard's machining needs though the
exact functions of the shipyard machine shops vary throughout the
shipbuilding industry. Shipyard machine shops perform functions ranging
from rebuilding pumps to turning 25 foot long propeller drive shafts on lathes.
Equipment in the machine shop consists of: end mills, lathes, drill presses,
milling machines, band saws, large presses, work tables, and cleaning tanks
(NSRP, 1993).
Sheet Metal Shop
The sheet metal shop is generally responsible for fabricating and installing
ventilation ducting and vent spools. Using engineering drawings and special
sheet metal tools this shop produces ventilation systems for new construction,
as well as repair work. The shop cuts, shapes, bends, welds, stamps, paints,
and performs a variety of manufacturing operations for ship ventilation
systems. Many sheet metal shops are also responsible for assembling large
ducting fans and heating and air conditioning components. Sheet metal
workers perform the installation of the ducting in various stages of
construction such as on-block, on-unit, onboard (NSRP, 1993).
Electrical Shop
Electrical shops in the shipyard perform a variety of functions throughout the
industry. In many cases, the electrical shop installs, rebuilds, builds, and tests
electrical components (e.g., motors, lights, transformers, gauges, etc.). The
electrical shop electricians also install the electrical equipment on the ship
either on-block or onboard. On-block is where the electrical parts are
installed and onboard is where cables are routed throughout the ship
connecting the electrical systems together. Electric shops generally have
plating tanks, dip tanks for lacquer coatings, electrical testing equipment, and
other specialized equipment (NSRP, 1993).
Foundry/Blacksmith Shop
The blacksmith shop is an older term used for the shipyard shop that performs
forging or castings. Forging and casting at shipyards are somewhat rare.
Over the years, forging and casting functions have been shifted to
subcontractors off-site. The subcontractors are usually foundries whose
primary function is forging and casting. Shipyards that have blacksmith shops
maintain large furnaces and other foundry equipment (NSRP, 1993).
Sector Notebook Project
22
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Plate Shop
The plate shop is a generic term used for the area and process in the shipyard
that provides steel parts cutting, bending, and sub-assembly. The plate shop
uses information from engineering drawings to produce plate shapes. The
shapes are cut and formed as needed. Most plate shops have manual and
computer controlled machinery. The types of machinery commonly found in
the plate shop are cutting machines, steel bending machines and plate bending
rolls, shearing machines, presses, hole punching equipment, and furnaces for
heat treatment. The plate shop sends the parts and sub-assemblies that they
manufacture to the stages of construction, or the platen area for installation
(NSRP, 1993).
Production Services
Services provided by this department include: carpentry, scaffolding erection,
crane operations, rigging, facility and equipment maintenance, and other
production support activities. The production services may be grouped into
one department or divided into unique shops for each service provided
(NSRP, 1993).
m.A.8. Solvent Cleaning and Degreasing
Solvent cleaning and degreasing are common in the shipbuilding and repair
industry (although many facilities are replacing solvent cleaning and
degreasing with aqueous and alkaline cleaning and degreasing). Solvent
cleaning and degreasing are typically accomplished by either cold cleaning or
vapor degreasing. Cold cleaning refers to operations in which the solvent is
used at room temperature. The surfaces or parts are soaked in a tank of
solvent, or sprayed, brushed, wiped, or flushed with solvent. Diphase
cleaning is sometimes used to combine a water rinse before and after the
solvent cleaning into a single step. In diphase cleaning, water insoluble
halogenated solvents and water are placed in a single tank where they separate
with the solvent on the bottom. Parts are lowered through the water bath
before reaching the solvent and then are rinsed through the water level as they
are removed from the tank.
In vapor degreasing, parts and surfaces are cleaned with a hot solvent vapor.
Solvent in a specially designed tank is boiled creating a solvent vapor in the
upper portion of the tank. The parts are held in the vapor zone where solvent
vapor condenses on the surface removing dirt and oil as it drips back into the
liquid solvent. In this way, only clean solvent vapors come in contact with the
part. A condensing coils at the top of the tank reduces the amounts of
solvents escaping to the atmosphere (NSRP, 1993).
Sector Notebook Project
23
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
HI.A.9. Surface Preparation
To a large extent, the effectiveness of the surface coating relies on the quality
of surface preparation. All paints will fail eventually, but the majority of
premature failures are due to loss of adhesion caused by improper surface
preparation. Surface preparation is also typically one of the most significant
sources of shipyard wastes and pollutant outputs. Section III.B.l discusses
waste generation and pollution outputs from these operations.
Surface preparation techniques are used to remove surface contaminants such
as mill scale, rust, dirt, dust, salts, old paint, grease, and flux. Contaminants
that remain on the surface are the primary causes of premature failure of
coating systems. Depending on the surface location, contaminants, and
materials, a number of different surface preparation techniques are used in the
shipbuilding and repair industry:
Solvent, Detergent, and Steam Cleaning
Blasting
Hand Tool Preparation
Wet Abrasive Blasting and Hydroblasting
Chemical Preparation
Solvent, Detergent, and Steam Cleaning
Blasting
The process of removing grease, oil and other contaminants with the aid of
solvents, emulsions, detergents, and other cleaning compounds is frequently
used for surface preparation in the shipbuilding industry. Solvent cleaning
involves wiping, scrubbing, immersion in solvent, spraying, vapor degreasing,
and emulsion cleaning the surface with rags or brushes until the surface is
cleaned. The final wipe down must be performed with a clean rag or brush,
and solvent. Inorganic compounds such as chlorides, sulfates, weld flux, rust
and mill scale cannot be removed with organic solvents.
In many cases steam cleaning is a better alternative to solvent wipe down.
Steam cleaning or high pressure washing is used to remove dirt and grime that
is present on top of existing paint and bare steel. Many hot steam, cleaners
with detergents will remove most petroleum products and sometimes, old
chipping paint. After steam cleaning the part should be rinsed with fresh
water and allowed to dry. Often the surface is ready to prime, although many
surfaces will require further preparation before painting.
Abrasive blasting is the most common method for paint removal and surface
preparation. Copper slag, coal slag, steel grit, and steel shot are common
blasting abrasives. Copper and steel grit consist of small angular particles,
Sector Notebook Project
24
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
while steel shot is made up of small round balls. Copper slag can generally be
used only once or twice before it becomes too small to be effective. Steel grit
and shot can typically be used between 50 and 5,000 times before becoming
ineffective. Metallic grit and shot are available in varying ranges of hardness
and size.
Centrifugal blasting machines, also called roto-blasting or automatic blasting,
are one of the more popular methods of blasting steel surfaces. In centrifugal
blasting, metallic shot or grit is propelled to the surface to be prepared by a
spinning wheel. Centrifugal blasting machines tend to be large and not easily
mobilized. Therefore, they are not applicable to all shipyard blasting needs.
Parts to be prepared must be brought to the machine and passed through on
a conveyor or rotary table. On flat surfaces, centrifugal blasting machines can
produce uniform blasting results at high production rates. More time is
required to prepare surfaces that are hard to reach. The process allows easy
recovery of abrasive materials for reuse and recycling which can result in
significant savings in materials and disposal costs. Large centrifugal blasting
machines are often found in the prime line for preparing raw steel sheets
before priming. Other centrifugal blasting machines are smaller and can be
used to prepare small parts, pipe spools, and steel subassemblies prior to
painting.
Air nozzle blasting (or dry abrasive blasting) is one of the most common types
of blasting in the shipbuilding and repair industry. In air nozzle blasting,
abrasive is conveyed to the surface to be prepared in a medium of high
pressure air (approximately 100 pounds per square inch) through a nozzle at
velocities approaching 450 feet per second. Abrasives are copper slag, coal
slag and other metallic grit. Typically copper slag is used on the west coast
and coal slag is used on the east coast. Traditionally sand was used, but
metallic grit has replaced it due to the adverse health and environmental
effects of silica dust associated with sand. Air nozzle blasting is generally
carried out manually by shipyard workers either within a building or in the
open air, depending on the application. If the application allows, blast booths
can be used for containing abrasives.
Hand Tool Preparation
Hand tools such as grinders, wire brushes, sanders, chipping hammers, needle
guns, rotary peening tools, and other impact tools are commonly used in the
shipyard for surface preparation. The hand tools are ideal for small jobs, hard
to reach areas, and areas where blasting grit would be too difficult to contain.
Cleaning surfaces with hand tools seems comparatively slow although, when
removing heavy paint formulations and heavy rust, they are effective and
economical. Impact tools like chipping and needle guns are best for removing
heavy deposits of brittle substances (e.g., rust and old paint). Hand tools are
generally less effective when removing tight surface mill scale or surface
Sector Notebook Project
25
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
rusting, because they can damage the metal surface. Surface preparation hand
tools are generally pneumatic instead of electric because they are lighter, easy
to handle, do not overheat, and there is no risk of electric shock.
Wet Abrasive Blasting and Hydroblasting
Wet abrasive blasting and hydroblasting are generally performed on ships
being repaired in a floating drydock, graving dock, or other building or repair
position. Wet abrasive blasting involves blasting with a mixture of water, air
and solid abrasives. Wet abrasive blasting does not occur throughout the
shipyard like dry abrasive blasting because of the problem of water blast
containment. In part due to lack of customer acceptance, wet abrasive
blasting is not common in the shipbuilding and repair industry at this time.
Instead, hydroblasting is a widely used wet blasting technique which uses only
high pressure water to remove chipping paint, marine growth, mud, and salt
water from the ship's hull. A small amount of rust inhibitor may be used in
the water to prevent flash rusting. Hydro basting is often followed by air
nozzle blasting for final surface preparation.
Chemical Preparation
Chemical surface preparations consist of paint removers, alkaline cleaning
solutions, chlorinated solvents, and pickling. Alkaline cleaning solutions come
in a variety of forms and are used in a variety of manners. Alkaline cleaners
can be brushed on, sprayed on, and applied in a dip tank. Alkaline dip tanks
of caustic soda solution are frequently used for cleaning parts and preparing
them for painting. After the surface is cleaned, it is thoroughly rinsed before
a coating system is applied. Many solvents and alkaline cleaners cannot be
used for nonferrous materials, such as bronze, aluminum, and galvanized steel
which are frequently found on ships.
Pickling is a process of chemical abrasion/etching which prepares surfaces for
good paint adhesion. The pickling process is used in shipyards mainly for
preparing pipe systems and small parts for paint. However, the process and
qualities will vary from shipyard to shipyard. The process involves a system
of dip tanks. Figure 5 displays how the tanks can be arranged. In pickling
steel parts and piping systems, Tank #1 is used to remove any oil, grease, flux,
and other contaminants on the surface being pickled. The content in tank #1
are generally a 5-8% caustic soda and water mixture maintained at
temperatures of between 180°-200°F. The part is then immersed into tank
#2, which is the caustic soda rinse tank (pH 8-13). Next, the steel is dipped
into tank #3B, which is a 6-10% sulfuric acid/water mixture maintained
between 140°-160°F. Tank #4 is the acid rinse tank that is maintained at a
pH of 5-7. Finally the steel pipe or part is immersed in a rust preventative 5%
phosphoric mixture in tank #5. The part is allowed to fully dry prior to paint
application.
Sector Notebook Project
26
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Figure 5: Typical Pickling Tank Arrangement
Steel Parts
Caustic Tank
#1
Rinse Water
' #2
Copper and
Copper-Nickel
Alloy Parts
Sulfuric Acid
#3B
Nitric Acid
#3A
Rinse Water
#4
Rust
Preventative
#5
i
Steel Parts
Copper and
Copper-Nickel
Alloy Parts
Some ships have large piping systems that are predominantly copper-nickel
alloy or copper. Pickling of copper is generally only a two-step process. The
first step is to dip the pipe into tank #3 A, a 3-6% nitric acid solution
maintained at 140°-160°F. The nitric acid removes any flux and greases that
are present on the surface and prepares the surface for paint. Next, the pipe
is dipped into the acid rinse tank (#4), after which it is considered to be
treated. Once the part is dry, the final coating can be applied.
Metal Plating and Surface Treatment
Metal plating and surface treatment are used in shipyards to alter the surface
properties of the metal in order to increase corrosion or abrasion resistance,
and to improve electrical conductivity (Kura, 1996). Metal plating and
surface treatment includes chemical and electrochemical conversion, case
hardening, metallic coating, and electroplating. Thorough descriptions of
these processes and their associated wastes are contained in the Fabricated
Metal Products Industry Sector Notebook.
Sector Notebook Project
27
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
m.A.10. Painting Processes
Proper surface coating system application is essential in the shipbuilding and
repair industry. The corrosion and deterioration associated with the marine
environment has detrimental effects on ships and shipboard components.
Maintaining ships' structural integrity and the proper functioning of their
components are the main purposes of shipboard coating systems.
Painting is performed at almost every location within shipyards. This is due
to the wide variety of work performed throughout shipyards. The nature of
shipbuilding and repair requires several types of paints to be used for a
variety of applications. Paint types range from water-based coatings to high
performance epoxy coatings. The type of paint needed for a certain
application depends on the environment that the coating will be exposed. In
general there are six areas where shipboard paint requirements exist:
Underwater (Hull Bottom)
Waterline
Topside Superstructures
Internal Spaces and Tanks
Weather Decks
Loose Equipment
Because paint systems are often specified by the customer or are supplied by
the ship owner, shipyards often may not be able to choose or recommend a
particular system. Navy ships may require a specific type of paint for every
application through a military specification (Mil-spec). Many factors are
considered when choosing a particular application. Among the factors are
environmental conditions, severity of environmental exposure, drying and
curing times, application equipment and procedures, etc.
Paint Coating Systems
Paints are made up of three main ingredients: pigment, binder, and a solvent
vehicle. Pigments are small particles that generally determine the color as well
as many other properties associated with the coating. Examples of pigments
include: zinc oxide, talc, carbon, coal tar, lead, mica, aluminum, and zinc dust.
The binder can be thought of as the glue that holds the paint pigments
together. Many paints are referred to by their binder type (e.g., epoxy, alkyd,
urethane, vinyl, phenolic, etc.). The binder is also very important for
determining a coating's performance characteristics (e.g., flexibility, chemical
resistance, durability, finish, etc.). The solvent is added to thin the paints so
that it will flow to the surface and then dry. The solvent portion of the paint
evaporates when the paint dries. Some typical solvents include acetone,
mineral spirits, xylene, methyl ethyl ketone, and water.
Sector Notebook Project
28
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Anticorrosive and antifouling paints are typically used on ship's hulls and are
the main two types of paint used in the shipbuilding industry. Antifouling
paints are used to prevent the growth of marine organisms on the hull of
vessels. Copper-based and tributyl-tin-based paints are widely used as
antifouling paints. These paints release small quantities of toxics which
discourage marine life from growing on the hull. Anticorrosive paints are
either vinyl, lacquer, urethane, or newer epoxy-based coating systems (ILO,
1996).
The first coating system applied to raw steel sheets and parts is generally pre-
construction primer. This pre-construction primer is sometimes referred to
as shop primer. This coat of primer is important for maintaining the condition
of the part throughout the construction process. Pre-construction priming is
performed on steel plates, shapes, sections of piping, and ventilation ducting.
Most pre-construction primers are zinc-rich with organic or inorganic binders.
Zinc silicates are predominant among the inorganic zinc primers. Zinc coating
systems protect coatings in much the same manner as galvanizing. If zinc is
coated on steel, oxygen will react with the zinc to form zinc oxide, which
forms a tight layer that does not allow water or air to come into contact with
the steel (ILO, 1996).
Paint Application Equipment
There are many types of paint application equipment used in the shipbuilding
industry. Two main methods used are compressed air and airless sprayers.
Compressed air sprayers are being phased out in the industry because of the
low transfer ability of the system. Air assisted paint systems spray both air
and paint, which causes some paint to atomize and dry quickly prior to
reaching the intended surface. The transfer efficiency of air assisted spray
systems can vary from 65% to 80%. This low transfer efficiency is due mainly
to overspray, drift, and the air sprayer's inefficiencies (ILO, 1996).
The most widely used form of paint application in the shipbuilding industry is
the airless sprayer. The airless sprayer is a system that simply compresses
paint in a hydraulic line and has a spray nozzle at the end. Airless sprayers use
hydrostatic pressure instead of air to convey the paint. They are much cleaner
to operate and have fewer leaking problems because the system requires less
pressure. Airless sprayers can have up to 90% transfer efficiency. A new
technology that can be added to the airless sprayer is called High Volume
Low Pressure (HVLP). HVLP offers an even higher transfer efficiency, in
certain conditions (ILO, 1996).
Thermal spray is the application of aluminum or zinc coatings to steel for long
term corrosion protection. Thermal spray can also be referred to as metal
spray or flame spray. Thermal spray is significantly different than
conventional coating practices due to its specialized equipment and relatively
Sector Notebook Project
29
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
slow production rates. The initial cost of thermal spray is usually high
compared to painting, although when the life-cycle is taken into account,
thermal spray becomes more economically attractive. Many shipyards have
their own thermal spray machines and other shipyards will subcontract their
thermal coating work. Thermal spray can occur in a shop or onboard the ship.
There are two basic types of thermal coating machines: combustion wire and
arc spray. The combustion wire type consists of combustible gasses and flame
system with a wire feed controller. The combustible gasses melt the material
to be sprayed onto the parts. The electric arc spray machine instead uses a
power supply arc to melt the flame sprayed material (ILO, 1996).
Painting Practices and Methods
Painting is performed in nearly every area in the shipyard from the initial
priming of the steel to the final paint detailing of the ship. Methods for
painting vary greatly from process to process. Mixing of paint is performed
both manually and mechanically and should be done in an area contained by
berms, tarps, secondary containment pallets. Outdoor as well as indoor
painting occurs in the shipyard. Shrouding fences, made of steel, plastic, or
fabric, are frequently used to help contain paint overspray by blocking the
wind and catching paint particles (NSRP, 1996)v
Hull painting occurs on both repair ships and new construction ships. Hull
surface preparation and painting on repair ships is normally performed when
the ship is fblly drydocked (i.e., graving-dock or floating drydock). For new
construction, the hull is prepared and painted at a building position using one
of the techniques discussed in the previous sections. Paint systems are
sprayed onto the hull using airless sprayers and high reach equipment such as
man-lifts, scissor lifts, or portable scaffolding (ILO, 1996).
The superstructure of the ship consists of the exposed decks, deck houses,
and structures above the main deck. In many cases, scaffolding is used
onboard the ship to reach antennas, houses, and other superstructures.
Shrouding is usually put into place if it is likely that paint or blast material will
fall into adjacent waters. On repair ships, the ship's superstructure is painted
mostly while berthed. The painters access the superstructures with existing
scaffolding, ladders, and various lifting equipment that was used during
surface preparation. The shrouding system (if applicable) that was used for
blast containment will stay in place to help contain any paint overspray (ILO,
1996).
Tanks and compartments onboard ships must be coated and re-coated to
maintain the longevity of the ship. Re-coating of repair ship tanks requires.a
large amount of surface preparation prior to painting. The majority of the
tanks are at the bottom of the ship (e.g., ballast tanks, bilges, fuel, etc.). The
tanks are prepared for paint by using solvents and detergents to remove
Sector Notebook Project
30
November 1997
-------
Shipbuilding and Repair Industry Industrial Process Description
grease and oil build-up. The associated waste-water developed during tank
cleaning must be properly treated and disposed of. After the tanks are dried,
they are blasted with a mineral slag. Once the surface is blasted and the grit
is removed, painting can begin. Adequate ventilation and respirators are a
strict requirement for all tank and compartment surface preparation and
painting (ELO, 1996).
Painting is also carried out after the assembly of hull blocks. Once the blocks
leave the assembly area, they are frequently transported to a blast area where
the entire block is prepared for paint. At this point, the block is usually
blasted back down to bare metal (i.e., the construction primer is removed).
However, many shipyards are now moving towards implementing a
preconstruction primer that does not need to be removed. The most frequent
method for block surface preparation is air nozzle blasting. The paint system
is applied by painters generally using airless spray equipment on access
platforms. Once the block's coating system has been applied, the block is
transported to the on-block stage where outfitting materials are installed (TLO
1996).
Many parts need to have a coating system applied prior to installation. For
example, piping spools, vent ducting, foundations, and doors are painted
before they are installed on-block. Some small parts painting occurs in the
various shops while others are painted in a standard location operated by the
paint department (ILO, 1996). Indoor painting of this type usually occurs in
a spray booth. Spray booths capture overspray, control the introduction of
contaminants to the workplace environment, and reduce the likelihood of
explosions and fires. Paint booths are categorized by the method used for
collecting the overspray (EPA, 1995).
The two primary types of paint booths are dry filter and water wash booths.
Dry filter booths use filter media (usually paper or cloth filters) to screen out
the paint solids by pulling prefiltered air through the booth, past the spraying
operation, and through the filter media. Water wash booths use a "water
curtain" to capture paint overspray by pulling air containing entrained paint
overspray through a circulated water stream which "scrubs" the overspray
from the air. Water is periodically added to the paint booth reservoir to
compensate for evaporative losses, and chemicals are periodically added to
improve paint sludge formation. The sump is periodically discharged, usually
during general system cleaning or maintenance (EPA, 1995).
IH.A.11. Fiberglass Reinforced Construction Operations
Many of the medium and small shipyards manufacture and repair fiberglass
ships and boats or construct fiberglass parts for steel ships. The process
involves combining polymerizing resin with fiberglass reinforcing material.
The resin is polymerized with a catalyst or curing agent. Once cured, the hard
Sector Notebook Project 31 November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
resin cannot be softened or reshaped and is stronger than composite plastics
without the reinforcing. Fiberglass material consists of a woven mat of glass-
like fibers. The fiberglass content of the reinforced product ranges from 25 to
60 percent.
A number of different processes are used, but the mold-based process is the
most common for this industry. Mold-based fiberglass reinforced construction
typically involves either the hand application or spray application of fiberglass
reinforcing. In the hand application method, the reinforcing material is
manually applied to a mold wetted with catalyzed resin mix or gelcoat and
then sprayed or brushed with more resin or gelcoat. In the sprayup method,
catalyzed resin and fiberglass reinforcement are mechanically sprayed onto the
mold surface.
Molds are used to give structure and support to the shape of the structure
being built. Most molds are made of wood with a plastic finish. Typical resins
used include: polyesters, epoxies, polyamides, and phenolics. The type of
resin to be used in a particular process depends on the specific properties
required for the end product. The resin is supplied in liquid form and may
contain a solvent. Resin preparation involves mixing with solvents, catalysts,
pigments, and other additives. Solvents are typically acetone, methanol,
methyl ethyl ketone, and styrene. Catalysts are typically amines, anydrides,
aldehyde condensation products, and Lewis acid products. Gelcoat is a
pigmented polyester resin or a polyester resin-based paint containing
approximately 35 percent styrene that is applied to the mold or surface with
an air atomizer or airless spray gun. A catalyst is injected into the resin in a
separate line or by hand mixing in order to thermoset the polyester resin.
Sector Notebook Project
32
November 1997
-------
Shipbuilding and Repair Industry Industrial Process Description
m.B. Raw Material Inputs and Pollutant Outputs
Raw material inputs to the shipbuilding and repair industry are primarily steel
and other metals, paints and solvents, blasting abrasives, and machine and
cutting oils. In addition, a wide variety of chemicals are used for surface
preparation and finishing such as solvent degreasers, acid and alkaline
cleaners, and cyanide and metal bearing plating solutions. Pollutants and
wastes generated typically include VOCs, particulates, waste solvents, oils and
resins, metal bearing sludges and wastewater, waste paint, waste paint chips,
and spent abrasives. The major shipyard activities that generate wastes and
pollutant outputs are discussed below and are summarized in Table 3.
m.B.1. Surface Preparation
The materials used and wastes generated during surface preparation depend
on the specific methods used. The surface preparation method is chosen
based on the condition of the metal surface (e.g., coated with paint, rust,
scale, dirt, grease, etc.), the type of coating to be applied, the size, shape, and
location of the surface, and the type of metal. Material inputs used for
preparing surfaces include: abrasive materials such as steel shot or grit, garnet,
and copper or coal slag; and cleaning water, detergents, and chemical paint
strippers (e.g., methylene chloride-based solutions, caustic solutions, and
solvents). In the case of hydroblasting, only water and occasionally rust
inhibitor are required (NSRP, 1996).
Air Emissions
Air emissions from surface preparation operations include particulate
emissions of blasting abrasives, and paint chips. Particulates emissions can
also contain toxic metals which are a concern both in the immediate area
surrounding the work and if they are blown off-site or into surrounding
surface waters. Particulate emissions are typically controlled by preparing
surfaces indoors when possible or by surrounding the work area with
shrouding fences made of steel, plastic, or fabric. Other air emissions that
could potentially arise during surface preparation operations are VOCs and
hazardous air pollutants (HAPs) arising from the use of solvent cleaners, paint
strippers, and degreasers.
Residual Wastes
The primary residual waste generated is a mixture of paint chips and used
abrasives. Paint chips containing lead or antifouling agents may be hazardous,
but often in practice the concentration of toxic compounds is reduced due to
the presence of considerable amounts of spent blasting medium. The resulting
mixed waste may be nonhazardous (Kura, 1996). Waste sludge containing
paint chips and surface contaminants may also be generated in the case of
Sector Notebook Project 33 November 1997
-------
Shipbuilding and Repair Industry Industrial Process Description
hydroblasting or wet abrasive blasting. Blasting abrasives and paint chips that
collect in tank vessels, ship decks, or drydocks should be thoroughly cleaned
up and collected after work is completed or before the drydock is flooded or
submerged. Particular attention should be paid to the cleanup of paint chips
containing the antifouling tributyl-tin (TBT) compounds which have been
shown to be highly toxic to oysters and other marine life (Levy, 1996).
Waste\vater
Significant quantities of wastewater can be generated when cleaning ship
cargo tanks, ballast tanks, and bilges prior to surface preparation and painting.
Such wastewater is often contaminated with cleaning solvents, and oil and fuel
from bilges and cargo tanks. Wastewater contaminated with paint chips and
surface contaminants is generated when hydroblasting and wet abrasive
blasting methods are used (EPA, 1991).
III.B.2. Painting
Material inputs for painting are primarily paints and solvents. Solvents are
used in the paints to carry the pigment and binder to the surface, and for
cleaning the painting equipment. VOCs and HAPs from painting solvents are
one of the most important sources of pollutant outputs for the industry.
Paints also may contain toxic pigments such as chromium, titanium dioxide,
lead, copper, and tributyl-tin compounds. Water is also used for equipment
cleaning when water-based paints are used.
Air Emissions
Painting can produce significant emissions of VOCs and HAPs when the
solvents in the paint volatilize as the paint dries. Other sources of VOCs and
HAPs may arise when solvents are used to clean painting equipment such as
spray guns, brushes, containers, and rags. Sprayed paint that does not reach
the surface being coated, or overspray, is another source of painting air
emissions. The solvents in the overspray rapidly volatilize and the remaining
dry paint particles can drift off-site or into nearby surface waters.
Residual Wastes
Solid wastes associated with painting are believed to be the largest category
of hazardous waste produced in shipyards (Kura, 1996). Typical wastes
associated with painting include leftover paint, waste paint containers, spent
equipment, rags and other materials contaminated with paint, spent solvents,
still bottoms from recycled cleaning solvents, and sludges from the sumps of
water wash paint spray booths. Wastes associated with antifouling bottom
paints are sometimes collected separately from the typically less toxic topside
and interior paints. Antifouling paints contain toxic metal or organometallic
Sector Notebook Project 34 November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
biocides such as cuprous oxide, lead oxide, and tributyl-tin compounds.
(Kura, 1996)
Wastewater
Wastewater contaminated with paints and solvents may be generated during
equipment cleaning operations; however, water is typically only used in
cleaning water-based paints. Wastewater is also generated when water
curtains (water wash spray booths) are used during painting. Wastewater
from painting water curtains commonly contains organic pollutants as well as
certain metals. The wastewater can be treated at the source using filtration,
activated carbon adsorption, or centrifugation and then reused instead of
being discharged (EPA, 1995).
m.B.3. Metal Plating and Surface Finishing
Material inputs for metal plating and finishing include the solutions of plating
metals such as chromium, aluminum, brass, bronze, cadmium, copper, iron,
lead, nickel, zinc, gold, platinum, and silver. In addition, cyanide solutions,
solvents, rinse water, and rust inhibitors are used. Many of the wastes
generated from metal plating and surface finishing operations are considered
hazardous resulting from their toxicity. Thorough descriptions of these
processes and their associated wastes are contained in the Fabricated Metal
Products Industry Sector Notebook.
Air Emissions
Air emissions arise from metal mists, fumes, and gas bubbles from the surface
of the liquid baths and the volatilization of solvents used to clean surfaces
prior to plating or surface finishing.
Residual Wastes
Wastewater
Solid wastes include wastewater treatment sludges, still bottoms, spent metal
plating solutions, spent cyanide solutions, and residues from tank cleaning.
Often, the solid waste generated contains significant concentrations of toxic
metals, cyanides, acids, and alkalies.
Wastewaters are primarily rinse waters, quench water, and waste tank
cleaning water contaminated with metals, cyanides, acids, alkalies, organics,
and solvents. Wastewaters are typically either sent off-site for treatment or
disposal or are treated onsite by neutralization and conventional hydroxide
precipitation prior to discharging either to a POTW or surface waters under
an NPDES permit.
Sector Notebook Project
35
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
IIJ.B.4. Fiberglass Reinforced Construction
Material inputs for fiberglassing operations include fiberglass, mold or
reinforcing materials (wood and plastic), resins, solvents, and curing catalysts.
Unsaturated polyester resins, such as orthophthalic polyester, isophthalic
polyester, and bisphenol polyester are the most commonly used resins. Other
resins include epoxies, polyamides and phenolic compounds. Resins typically
are not hazardous; however, the solvent in which the resin is dissolved may
be hazardous. In addition, some catalysts may be hazardous. Catalysts include
amines (e.g., diethylenetriamine and triethylenetetramone), anhydrides,
aldehyde condensation products, and Lewis acid catalysts.
Typical hazardous wastes include containers contaminated with residual
chemicals, wash-down wastewater, spent cleaning solvents from equipment
cleanup, scrap solvated resin left over in mix tanks, diluted resin and partially
cured resin. For a detailed description of fiberglassing operations and
associated wastes, refer to EPA's Pollution Prevention Guide for the
Fiberglass-Reinforced and Composite Plastics Industry, October 1991.
Air Emissions
Organic vapors consisting of VOCs are emitted from fresh resin surfaces
during the fabrication process and from the use of solvents for cleanup. The
polyester resins used in gelcoating operations have a styrene content of
approximately 35 percent. Emissions of styrene and other solvent VOCs
during spraying, mixing, brushing, and curing can be significant. In addition,
emissions of solvent vapors arise when acetone and methylene chloride are
used to clean fiber glassing equipment (Kura, 1996).
Residual Wastes
Residual wastes generated from fiberglass operations include, gelcoat and
resin overspray, unused resins that have exceeded their shelf life, fiberglass
boxes, gelcoat drums, waste solvents, and cleanup rags (Kura, 1996).
HI.B.5. Machining and Metalworking
Machining and metal working operations such as cutting, pressing, boring,
milling, and grinding, typically involve the use of a high speed cutting tool.
Friction at the cutting edge of the blade creates heat that could permanently
deform the metal being machined or the cutting tool. Coolants, such as
cutting oils and lube oils are, therefore, supplied to the leading edge of the
tool to remove excessive heat (Kura, 1996). Solvents are frequently used to
clean parts and tools prior to and after machining.
Sector Notebook Project
36
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Air Emissions
Fugitive air emissions arise from the use of solvents for cleaning and
degreasing.
Residual Wastes
Wastewater
Waste cutting oils, lube oils, and degreasing solvents are the major residual
wastes generated. Metal shavings and chips are also generated. Typically
these are separated from coolants, if necessary, and recycled along with scrap
metal (Kura, 1996).
Wastewaters containing cleaning solvents and emulsified lubricants, coolants,
and cutting oils may produced if parts are cleaned or rinsed with water. In
addition, some modern lubricating oils and grease are being formulated with
limited or no mineral oil content. These lubricants are known as high water
content fluids. When spent they can result in wastewater comprised of a
maximum of 15 percent mineral oil emulsified in water (Water Environment
Federation, 1994).
m.B.6. Solvent Cleaning and Degreasing
The type of solvent used in parts and surface cleaning and degreasing depends
on the type of contaminants to be removed, degree of cleaning needed,
properties of the surfaces to be cleaned, and properties of the various solvents
(stability, toxicity, flammability, and cost). Both halogenated and
nonhalogenated solvents are used and mixtures of different solvents are
common. Typical cleaning and degreasing solvents include mineral spirits,
aromatic hydrocarbons (e.g., xylenes, toluene, etc.), aliphatic hydrocarbons,
ketones, esters, alcohols, glycol ethers, phenols, turpentine, and various
halogenated solvents (e.g., trichloroethylene, 1,1,1-trichloroethane,
perchloroethylene, etc.).
Air Emissions
Solvent vapors comprised of VOCs and HAPs are a significant pollutant
output of cleaning and degreasing operations. Fugitive emissions arise from
vapor degreasers, solvent tanks and containers, solvent stills, solvent soaked
rags, and residual solvents on parts and surfaces.
Residual Wastes
Residual wastes may include contaminated or spent solvents, solvents that
have become contaminated or deteriorated due to improper storage or
Sector Notebook Project 37 November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
handling, solvent residues and sludges from tank bottoms and still bottoms,
solvent contaminated rags and filter cartridges, and solvent contaminated soil
from solvent spills.
Wastewater
Wastewater containing solvents are generated when cleaning or rinsing parts
or surfaces, and when cleaning equipment, tanks, and process lines with
water. Wastewater contaminated with solvents is also generated when water
from diphase parts cleaning operations is replaced.
Sector Notebook Project
38
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Table 3: Material Inputs and Potential Pollutant Outputs
for the Shipbuilding and Repair Industry
Industrial
Process
Surface
Preparation
Metal Plating
and Surface
Finishing
Painting
Fiberglass
Reinforced
Construction
Machining
and Metal
Working
Material
Inputs
Abrasives (steel
shot, lead shot, steel
grit, garnet, copper
slag, and coal slag),
detergents, solvent
paint strippers and
cleaners, and caustic
solutions.
Plating metals,
cyanide solutions,
cleaning solvents,
rinse water, acid and
caustic solutions and
rust inhibitors.
Paints, solvents, and
water.
Fiberglass, resin,
solvents, curing
catalysts, and wood
and plastic
reinforcing
materials.
Cutting oils, lube
oils, and solvents.
Air Emissions
Particulates (metal,
paint, and abrasives)
and VOCs from
solvent cleaners and
paint strippers.
Metal mists and
fumes, and VOCs
from solvents.
VOCs from paint
solvents and
equipment cleaning
solvents, and
overspray.
VOC emissions
released during
construction
operations and curing
(e.g., styrene) and
during cleaning with
solvents (e.g., acetone
and methylene
chloride).
VOC emissions from
the use of cleaning
and degreasing
solvents.
Wastewater
Wastewater
contaminated with
paint chips, cleaning
and paint stripping
solvents, surface
contaminants, and
oil residues from
bilges and cargo
tanks.
Rinse and quench
water contaminated
with metals,
cyanides, acids,
alkalies, organics,
and solvents.
Waste equipment
cleaning water and
water wash spray
paint booth sump
water contaminated
with paints and
solvents.
Little or no
Wastewater
generated.
Wastewater
containing solvents,
emulsified
lubricating and
cutting oils and
coolants.
Residual
Wastes
Paint chips
(potentially
containing metals,
tributyl-tin), spent
abrasives, surface
contaminants, and
cargo tank residues.
Sludge from
Wastewater
treatment, spent
plating solutions and
cyanide solutions,
bath cleaning
residues.
Leftover paint and
solvents, waste paint
and solvent
containers, spent
paint booth filters,
and spent
equipment.
Waste fiberglass,
gelcoat, resin,
unused resin that has
exceeded its shelf
life, spent solvents,
and used containers.
Waste cutting oils,
lube oils, and metal
chips and shavings.
Sources: Kura, Bhaskar, Typical Waste Streams in a Shipbuilding Facility, and U.S. EPA, Office of Research and
Development, Guides to Pollution Prevention, The Marine Maintenance and Repair Industry
Sector Notebook Project
39
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
III.C. Management of Chemicals in Wastestream
The Pollution Prevention Act of 1990 (PPA) requires facilities to report
information about the management of Toxics Release Inventory (TRI)
chemicals in waste and efforts made to eliminate or reduce those quantities.
These data have been collected annually in Section 8 of the TRI reporting
Form R beginning with the 1991 reporting year. The data summarized below
cover the years 1993-1996 and is meant to provide a basic understanding of
the quantities of waste handled by the industry, the methods typically used to
manage this waste, and recent trends in these methods. TRf waste
management data can be used to assess trends in source reduction within
individual industries and facilities, and for specific TRI chemicals. This
information could then be used as a tool in identifying opportunities for
pollution prevention compliance assistance activities.
While the quantities reported for 1994 and 1995 are estimates of quantities
already managed, the quantities listed by facilities for 1996 and 1997 are
projections only. The PPA requires these projections to encourage facilities
to consider future waste generation and source reduction of those quantities
as well as movement up the waste management hierarchy. Future-year
estimates are not commitments that facilities reporting under TRI are required
to meet.
Table 4 shows that the TRI reporting shipyards managed about six million
pounds of production related wastes (total quantity of TRI chemicals in the
waste from routine production operations in column B) in 1995. From the
yearly data presented in column B, the total quantities of production related
TRI wastes increased between 1994 and 1995. This is likely in part because
the number of chemicals on the TRI list nearly doubled between those years.
Production related wastes were projected to decrease between 1996 and
1997.
Values in column C are intended to reveal the percentage of production
related wastes that are either transferred off-site or released to the
environment. Column C is calculated by dividing the total TRI transfers and
releases (reported in Sections 5 and 6 of the TRI Form R) by the total
quantity of production-related waste (reported in Section 8). Since the TRI
releases and transfers from Sections 5 and 6 of the TRI Form R should all be
accounted for in Section 8 of Form R, the percentages shown in column C
should always be less than 100 percent. For the shipbuilding and repair
industry, the TRI data shows that erroneous reporting in Form R by a number
of shipyards in both 1994 and 1995 has undermined the data resulting in
unusually high values in Column C.
If it is assumed that the proportions of production related wastes managed
onsite and off-site using the methods shown in columns D-I were reported
Sector Notebook Project
40
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
correctly, the data would indicate that about 60 percent of the TRI wastes are
managed off-site through recycling, energy recovery, or treatment (columns
G, H, and I, respectively) in 1995. Only about one percent of the wastes were
managed on-site. The remaining portion of TRI chemical wastes (about 44
percent), shown in column J, were released to the environment through direct
discharges to air, land, water, and underground injection, or was disposed off-
site.
Table 4: Source Reduction and Recycling Activity for
Shipyards (SIC 3731) as Reported within TRI
A
Year
1994
1995
1996
1997
B
Quantity of
Production-
Related
Waste
(106lbs.)a
5.32
6.45
5.62
5.59
C
% Released
and
Transferredb
113%
100%
On-Site
D
%
Recycled
1.1%
0.5%
0.7%
0.8%
E
% Energy
Recovery
0.0%
0.0%
0.0%
0.0%
F
% Treated
0.7%
0.7%
0.7%
0.7%
Off-Site
G
%
Recycled
36.1%
45.7%
40.1%
40.6%
H
% Energy
Recovery
12.6%
11.2%
11.3%
11.1%
I
% Treated
3.6%
2.2%
3.1%
3.1%
J
% Released
and
Disposed"
Off-site
46%
44%
44%
44%
Source: 7995 Toxics Release Inventory Database.
Within this industry sector, non-production related waste < 1% of production related wastes for 1995.
Total TRI transfers and releases as reported in Section 5 and 6 of Form R as a percentage of production related wastes.
Percentage of production related waste released to the environment and transferred off-site for disposal.
Sector Notebook Project
41
November 1997
-------
Shipbuilding and Repair Industry
Industrial Process Description
Page 42 intentionally left blank.
Sector Notebook Project
42
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
IV. CHEMICAL RELEASE AND TRANSFER PROFILE
This section is designed to provide background information on the pollutant
releases that are reported by this industry. The best source of comparative
pollutant release information is the Toxic Release Inventory (TRI). Pursuant
to the Emergency Planning and Community Right-to-Know Act, TRI includes
self-reported facility release and transfer data for over 600 toxic chemicals.
Facilities within SIC Codes 20 through 39 (manufacturing industries) that
have more than 10 employees, and that are above weight-based reporting
thresholds are required to report TRI on-site releases and off-site transfers.
The information presented within the sector notebooks is derived from the
most recently available (1995) TRI reporting year (which includes over 600
chemicals), and focuses primarily on the on-site releases reported by each
sector. Because TRI requires consistent reporting regardless of sector, it is
an excellent tool for drawing comparisons across industries. TRI data provide
the type, amount and media receptor of each chemical released or transferred.
Although this sector notebook does not present historical information
regarding TRI chemical releases over time, please note that in general, toxic
chemical releases have been declining. In fact, according to the 1995 Toxic
Release Inventory Public Data Release, reported onsite releases of toxic
chemicals to the environment decreased by 5 percent (85.4 million pounds)
between 1994 and 1995 (not including chemicals added and removed from the
TRI chemical list during this period). Reported releases dropped by 46
percent between 1988 and 1995. Reported transfers of TRI chemicals to off-
site locations increased by 0.4 percent (11.6 million pounds) between 1994
and 1995. More detailed information can be obtained from EPA's annual
Toxics Release Inventory Public Data Release book (which is available
through the EPCRA Hotline at 800-535-0202), or directly from the Toxic
Release Inventory System database (for user support call 202-260-1531).
Wherever possible, the sector notebooks present TRI data as the primary
indicator of chemical release within each industrial category. TRI data
provide the type, amount and media receptor of each chemical released or
transferred. When other sources of pollutant release data have been obtained,
these data have been included to augment the TRI information.
TRI Data Limitations
Certain limitations exist regarding TRI data. Release and transfer reporting
are limited to the approximately 600 chemicals on the TRI list. Therefore, a
large portion of the emissions from industrial facilities are not captured by
TRI. Within some sectors, (e.g. dry cleaning, printing and transportation
equipment cleaning) the majority of facilities are not subject to TRI reporting
because they are not considered manufacturing industries, or because they are
below TRI reporting thresholds. For these sectors, release information from
Sector Notebook Project
43
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
other sources has been included. In addition, many facilities report more than
one SIC code reflecting the multiple operations carried out onsite. Therefore,
reported releases and transfers may or may not all be associated with the
industrial operations described in this notebook.
The reader should also be aware that TRI "pounds released" data presented
within the notebooks is not equivalent to a "risk" ranking for each industry.
Weighting each pound of release equally does not factor in the relative
toxicity of each chemical that is released. The Agency is in the process of
developing an approach to assign toxicological weightings to each chemical
released so that one can differentiate between pollutants with significant
differences in toxicity. As a preliminary indicator of the environmental impact
of the industry's most commonly released chemicals, the notebook briefly
summarizes the toxicological properties of the top five chemicals (by weight)
reported by each industry.
Definitions Associated With Section IV Data Tables
General Definitions
SIC Code -- the Standard Industrial Classification (SIC) is a statistical
classification standard used for all establishment-based Federal economic
statistics. The SIC codes facilitate comparisons between facility and industry
data.
TRI Facilities are manufacturing facilities that have 10 or more full-time
employees and are above established chemical throughput thresholds.
Manufacturing facilities are defined as facilities in Standard Industrial
Classification primary codes 20-39. Facilities must submit estimates for all
chemicals that are on the EPA's defined list and are above throughput
thresholds.
Data Table Column Heading Definitions
The following definitions are based upon standard definitions developed by
EPA's Toxic Release Inventory Program. The categories below represent the
possible pollutant destinations that can be reported.
RELEASES - are an on-site discharge of a toxic chemical to the
environment. This includes emissions to the air, discharges to bodies of
water, releases at the facility to land, as well as contained disposal into
underground injection wells.
Releases to Air (Point and Fugitive Air Emissions) -- Include all air
emissions from industry activity. Point emissions occur through confined air
Sector Notebook Project
44
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
streams as found in stacks, vents, ducts, or pipes. Fugitive emissions include
equipment leaks, evaporative losses from surface impoundments and spills,
and releases from building ventilation systems.
Releases to Water (Surface Water Discharges) ~ encompass any releases
going directly to streams, rivers, lakes, oceans, or other bodies of water.
Releases due to runoff, including storm water runoff, are also reportable to
TRI.
Releases to Land ~ occur within the boundaries of the reporting facility.
Releases to land include disposal of toxic chemicals in landfills, land
treatment/application farming, surface impoundments, and other land disposal
methods (such as spills, leaks, or waste piles).
Underground Injection -- is a contained release of a fluid into a subsurface
well for the purpose of waste disposal. Wastes containing TRI chemicals are
injected into either Class I wells or Class V wells. Class I wells are used to
inject liquid hazardous wastes or dispose of industrial and municipal
wastewaters beneath the lowermost underground source of drinking water.
Class V wells are generally used to inject non-hazardous fluid into or above
an underground source of drinking water. TRI reporting does not currently
distinguish between these two types of wells, although there are important
differences in environmental impact between these two methods of injection.
TRANSFERS ~ is a transfer of toxic chemicals in wastes to a facility that
is geographically or physically separate from the facility reporting under TRI.
Chemicals reported to TRI as transferred are sent to off-site facilities for the
purpose of recycling, energy recovery, treatment, or disposal. The quantities
reported represent a movement of the chemical away from the reporting
facility. Except for off-site transfers for disposal, the reported quantities do
not necessarily represent entry of the chemical into the environment.
Transfers to POTWs are wastewater transferred through pipes or sewers
to a publicly owned treatments works (POTW). Treatment or removal of a
chemical from the wastewater depend on the nature of the chemical, as well
as the treatment methods present at the POTW. Not all TRI chemicals can
be treated or removed by a POTW. Some chemicals, such as metals, may be
removed, but are not destroyed and may be disposed of in landfills or
discharged to receiving waters.
Transfers to Recycling ~ are sent off-site for the purposes of regenerating
or recovery by a variety of recycling methods, including solvent recovery,
metals recovery, and acid regeneration. Once these chemicals have been
recycled, they may be returned to the originating facility or sold commercially.
Sector Notebook Project
45
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
Transfers to Energy Recovery are wastes combusted off-site in industrial
furnaces for energy recovery. Treatment of a chemical by incineration is not
considered to be energy recovery.
Transfers to Treatment -- are wastes moved off-site to be treated through
a variety of methods, including neutralization, incineration, biological
destruction, or physical separation. In some cases, the chemicals are not
destroyed but prepared for further waste management.
Transfers to Disposal are wastes taken to another facility for disposal
generally as a release to land or as an injection underground.
Sector Notebook Project
46
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
IV.A. EPA Toxic Release Inventory for the Shipbuilding and Repair Industry
This section summarizes TRI data of shipbuilding and repair facilities
reporting operations under SIC code 3731. Of the 598 shipbuilding and repair
establishments reported by the 1992 Census of Manufacturers, 43 reported
to TRI in 1995.
According to the 1995 TRI data, the reporting shipbuilding and repair
facilities released and transferred 39 different TRI chemicals for a total of
approximately 6.5 million pounds of pollutants during calendar year 1995.
These releases and transfers are dominated by volatile organic compounds
(VOCs) and metal-bearing wastes which make up 52 percent and 48 percent,
respectively, of total releases and transfers.
Transferstf TRI chemicals account for 58 percent of shipbuilding and repair
facilities' total TRI-reportable chemicals (3.5 million pounds) while releases
make up 42 percent (2.5 million pounds).
Releases
Transfers
Releases to the air, water, and land accounted for 37 percent (2.4 million
pounds) of shipyard's total reportable chemicals (see Table 5). Of these
releases, over 98 percent are released to the .air from fugitive (75 percent) or
point (24 percent) sources. VOCs accounted for about 86 percent of the
shipbuilding and repair industry's reported TRI releases. The remainder of the
releases were primarily metal-bearing wastes. Xylenes, n-butyl alcohol,
toluene, methyl ethyl ketone, and methyl isobutyl ketone account for about 65
percent of the industry's reported releases. These organic compounds are
typically found in solvents which are used extensively by the industry in
thinning paints and for cleaning and degreasing metal parts and equipment.
Styrene, reported by eight facilities, accounts for about 4 percent of the
industry's releases. Styrene comprises a substantial portion of the resin
mixtures and gelcoat used in fiberglass reinforced construction. Finally,
copper-, zinc-, and nickel-bearing wastes account for about 14 percent of the
industry's reported releases. They are released primarily as fugitive emissions
during metal plating operations and as overspray in painting operations and
can also be released as fugitive dust emissions during blasting operations.
Off-site transfers of TRI chemicals account for 63 percent of shipyard's total
TRI reportable chemicals (4.1 million pounds). Over 72 percent of the
shipbuilding and repair industry's TRI transfers are sent off-site for recycling
followed by about 18 percent sent off-site for energy recovery (see Table 6).
Metals accounted for about 67 percent of the industry's reported transfers.
VOCs made up almost all of the remainder of transferred TRI chemicals.
Sector Notebook Project
47
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
About 60 percent of the metals transferred were recycled, and almost all of
the remainder were either treated or disposed off-site. Copper, zinc, and
chromium made up about 70 percent of the metals transferred off-site. Most
of these are in the form of scrap metal, metal shavings and dust, spent plating
baths, wastewater treatment sludges, and in paint chips and spent blasting
abrasives. About 53 percent of the VOCs transferred were sent off-site for
energy recovery with the remainder primarily going to off-site recycling and
treatment. Waste solvents containing xylene, n-butyl alcohol, methanol,
carbon tetrachloride, and methyl ethyl ketone make up almost 70 percent of
the VOCs transferred off-site. These wastes were primarily transferred for
energy recovery.
Sector Notebook Project
48
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
1-M
p) ^
S
y ^
v/3 ~ģ5
^ ' *Q
CA fl
PM "^
*Ģ* O
1.3
H"^ rg
ģ ^
53 m
0* O
$ 2
T3 VQ
C3 ^
^ c§
WD ,2
*T3 PH
'3 wo
.Q S
S O
C/3 ft
Ģ2 *
2 S
S Ģ
2as
'0
> fe
s5!
H Ŗ
o\ g
_i 3
S ^
2 Ŗ*
"Ģ
^^
1
<
U4
S
s
d
>
<
3
1
Q
_)
Q
Z
ID
0
(*
1
Q
Z
P
&
w
Ŗ
fc
§
S
m
fcl
O
g
i
H
S
2
=*
>
fc
d
u
<
Hn
1
CW
1
i
§
^
2
a
Q
z
Q
rj
w
S
S
o
1
u
05
Q
g<
^
1
1
3
y
a
u
CHEMICAL NAME
Tf rt Tj-
OO OO VJ
O t- Ov
m r3 ^
Ģ = g
^O ^ O\
o\ en
°°g
O O O
gi < CO
vp
o\ n en
O\ CN O
en co
oC o
o\ \o
en co o
VO S
CO C^ ^4*
en co i-<
V) t*^ O\
oo cS
en *-t
^-x
CO
fV1
%
XYLENE (MIXED ISOMI
N-BUTYL ALCOHOL
COPPER COMPOUNDS
\O ^4*
DO VO
< c-
si
S2
°g
o o
0 0
c*^ o\^
n
O CS
t^
PROPYLENE
NICKEL
OO\VjVOOViOONOVOVOi (VJOOV^OCPOOOCOVIVIVI
c^t^i^vo\ooNO\r^voenc^Tt-'^oocS55Qvi*Q*-OOOģ-H t^-o\ Oent^-vjc*"co vovir^cS * <
i ' CN ' < ViCNCOVO i < *-*
asiilI§i§SSSI§§illSI§Sl§i
'-nviovien i-t T i Tf co Oent vit^-co vovicNc^ <-<
en^HVOVi ģ-(r-<25c^OOVO ^H ^H
OOOOOOOOOOOOOOOOOOOOOOOOO
ooooooooooooooooooooooooo
<"
Z O Q H BS U Q
PQ ^H *2 rrl [T"] ^y pq
NW S Jr^K5OUWW
§ §S Ģ1 d||B Sills 5
5 g>! Q^ Rb§J w^SQS3 Ģ
§ gS §8 §§S28 Sg|^S S3
§^!§Ģ 2S So||S Sllgg il
rt§iS2|S8isig5glgg|||§Ģ|i|
a§ģ^KoiqO§>3^E5iggF§|yal§>3Ģ
Sa|5|iSSi|B|3ii0S--a5aSisgģi!
UZS-HSSvU)4^EWĢSMOM-rQQOHU-n o o *
r-- oo co
Ov oo *^-
2"> "
S'l° I
C^ CO CO
I-H OO
CO
<^i
000 0
^^
o o o o
O O O Ov
[^
*
a
C~* \O ON
O\ 00 O
CS en rr
T-H f^
Vl
O VO O oo
00
CO
c^
t-
tt
2-ETHOXYETHANOL
CYCLOHEXANE
LEAD
Sector Notebook Project
49
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
I Ģ-H CO OO
I ^ ^' VI
-. --
d ~*
^c-X^.'
cs *o oo
en C4
vi c5 O d ^r S
-* r-"*oo' CN"^
s -s
m ts'o
cs
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
The TRI database contains a detailed compilation of self-reported, facility-
specific chemical releases. The top reporting facilities for the shipbuilding and
repair industry are listed below in Tables 7 and 8. Facilities that have reported
only the primary SIC codes covered under this notebook appear on Table 7.
Table 8 contains additional facilities that have reported the SIC codes covered
within this notebook, or SIC codes covered within this notebook and one or
more SIC codes that are not within the scope of this notebook. Therefore, the
second list may include facilities that conduct multiple operations some that
are under the scope of this notebook, and some that are not. Currently, the
facility-level data do not allow pollutant releases to be broken apart by
industrial process.
Table 7: Top 10 TRI Releasing Shipbuilding and Repair Facilities Reporting
Only SIC 3731 1
Rank
1
2
3
4
5
6
7
8
9
10
Facility
Newport News Shipbuilding - Newport News, VA
Atlantic Marine Inc. - Mobile, AL
Platzer Shipyard Inc. - Houston, TX
Norshipco - Norfolk, VA
Bethlehem Steel Corp.-Port Arthur, TX
Cascade General, Inc. - Portland, OR
Trinity Industries-Gulfport, MS
Todd Pacific Shipyards - Seattle, WA
Avondale Industries Inc. - Avondale, LA
Jeflboat - Jeffersonville, IN
Total TRI Releases
in Pounds
309,000
268,670
268,442
229,000
133,020
116,929
90,983
85,081
84,650
82,108
Source: US Toxics Release Inventory Database, 1995.
Being included on this list does not mean that the release is associated with non-compliance with environmental laws.
Sector Notebook Project
51
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
Table 8: Top 10 TRI Releasing Facilities Reporting Only SIC 3731
or SIC 3731 and Other SIC codes 2
Rank
1
2
3
4
5
6
7
8
9
10
SIC Codes
Reported in TRI
3731,3441,3443
3731
3731
3731
3731
3731
3731
3731
3731
3731
Facility
Ingalls Shipbuilding Inc.-Pascagoula, MS
Newport News Shipbuilding - Newport News, VA
Atlantic Marine Inc. - Mobile, AL
Platzer Shipyard Inc. - Houston, TX
Norshipco - Norfolk, VA
Bethlehem Steel Corp.-Port Arthur, TX
Cascade General, Inc. - Portland, OR
Trinity Industries-Gulfport, MS
Todd Pacific Shipyards - Seattle, WA
Avondale Industries Inc. - Avondale, LA
Total TRI Releases
in Pounds
723,560
309,000
268,670
268,442
229,000
133,020
116,929
90,983
85,081
84,650
.Source: US Toxics Release Inventory Database, 1995.
IV.B. Summary of Selected Chemicals Released
The following is a synopsis of current scientific toxicity and fate information
for the top chemicals (by weight) that facilities within this sector self-reported
as released to the environment based upon 1995 TRI data. Because this
section is based upon self-reported release data, it does not attempt to provide
information on management practices employed by the sector to reduce the
release of these chemicals. Information regarding pollutant release reduction
overtime may be available from EPA's TRI and 33/50 programs, or directly
from the industrial trade associations that are listed in Section IX of this
document. Since these descriptions are cursory, please consult the sources
referenced below for a more detailed description of both the chemicals
described in this section, and the chemicals that appear on the full list of TRI
chemicals appearing in Section IV. A.
The brief descriptions provided below were taken from the Hazardous
Substances Data Bank (HSDB) and the Integrated Risk Information System
(IRIS). The discussions of toxicity describe the range of possible adverse
health effects that have been found to be associated with exposure to these
chemicals. These adverse effects may or may not occur at the levels released
to the environment. Individuals interested in a more detailed picture of the
chemical concentrations associated with these adverse effects should consult
Being included on this list does not mean that the release is associated with non-compliance with enviromental laws.
Sector Notebook Project
52
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
a toxicologist or the toxicity literature for the chemical to obtain more
information. The effects listed below must be taken in context of these
exposure assumptions that are more fully explained within the full chemical
profiles in HSDB. For more information on TOXNET3 , contact the
TOXNET help line at 1-800-231-3766.
Xylenes (Mixedhomers) (CAS: 1330-20-7)
Sources. Xylenes are used extensively as cleaning solvents and in thinning
paints.
Toxicity. Xylenes are rapidly absorbed into the body after inhalation,
ingestion, or skin contact. Short-term exposure of humans to high levels of
xylene can cause irritation of the skin, eyes, nose, and throat, difficulty in
breathing, impaired lung function, impaired memory, and possible changes in
the liver and kidneys. Both short- and long-term exposure to high
concentrations can cause effects such as headaches, dizziness, confusion, and
lack of muscle coordination. Reactions of xylene (see environmental fate) in
the atmosphere contribute to the formation of ozone in the lower atmosphere.
Ozone can affect the respiratory system, especially in sensitive individuals
such as asthma or allergy sufferers.
Carcinogenicity. There is currently no evidence to suggest that this chemical
is carcinogenic.
Environmental Fate. A portion of releases to land and water will quickly
evaporate, although some degradation by microorganisms will occur. Xylenes
are moderately mobile in soils and may leach into groundwater, where they
may persist for several years. Xylenes are volatile organic chemicals. As
such, xylene in the lower atmosphere will react with other atmospheric
components, contributing to the formation of ground-level ozone and other
air pollutants.
TOXNET is a computer system run by the National Library of Medicine that includes a number of toxicological
databases managed by EPA, National Cancer Institute, and the National Institute for Occupational Safety and Health.
For more information on TOXNET, contact the TOXNET help line at 800-231 -3766. Databases included in TOXNET
are: CCRIS (Chemical Carcinogenesis Research Information System), DART (Developmental and Reproductive
Toxicity Database), DBIR (Directory of Biotechnology Information Resources), EMCBACK (Environmental Mutagen
Information Center Backfile), GENE-TOX (Genetic Toxicology), HSDB (Hazardous Substances Data Bank), IRIS
(Integrated Risk Information System), RTECS (Registry of Toxic Effects of Chemical Substances), and TRI (Toxic
Chemical Release Inventory). HSDB contains chemical-specific information on manufacturing and use, chemical and
physical properties, safety and handling, toxicity and biomedical effects, pharmacology, environmental fate and exposure
potential, exposure standards and regulations, monitoring and analysis methods, and additional references.
Sector Notebook Project
53
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
Zinc and Zinc Compounds (CAS: 7440-66-6; 20-19-9)
Sources. To protect metal from oxidizing, it is often coated with a material
that will protect it from moisture and air. In the galvanizing process, steel is
coated with zinc.
Toxicity. Zinc is a nutritional trace element; toxicity from ingestion is
low. Severe exposure to zinc might give rise to gastritis with vomiting due
to swallowing of zinc dusts. Short-term exposure to very high levels of
zinc is linked to lethargy, dizziness, nausea, fever, diarrhea, and reversible
pancreatic and neurological damage. Long-term zinc poisoning causes
irritability, muscular stiffness and pain, loss of appetite, and nausea.
Zinc chloride fumes cause injury to mucous membranes and to the skin.
Ingestion of soluble zinc salts may cause nausea, vomiting, and purging.
Carcinogenicity. There is currently no evidence to suggest that this
chemical is carcinogenic.
Environmental Fate. Significant zinc contamination of soil is only seen
in the vicinity of industrial point sources. Zinc is a relatively stable soft
metal, though burns in air. Zinc bioconcentrates in aquatic organisms.
n-Butanol fn-ButylAlcohol) (CAS: 71-36-3)
Sources. n-Butanol is used extensively for thinning paints and equipment
cleaning.
Toxicity. Short-term exposure usually results in depression of the central
nervous system, hypotension, nausea, vomiting, and diarrhea. Butanols may
cause gastrointestinal hemorrhaging. Eye contact may cause burning and
blurred vision. Hypotension and cardiac arrhythmias may occur. Inhaling n-
butanol may cause pulmonary edema. Headache, dizziness, and giddiness may
occur. Liver injury may occur but is probably rare. Dermatitis and
hypoglycemia may result from exposure to this chemical. Chronic exposure
may result in dry, cracked skin, and eye inflammation. Workers have
exhibited systemic effects of the auditory nerve as well as vestibular injury.
Carcinogenicity. There are currently no long-term studies in hurnans or
animals to suggest that this chemical is carcinogenic. Based on this evidence,
U.S. EPA has indicated that this chemical cannot be classified as to its human
Carcinogenicity. There is some evidence of chromosomal abnormalities in
short-term tests in bacteria and hamster cells, which may suggest potential
Carcinogenicity.
Sector Notebook Project
54
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
Environmental Fate. This chemical may volatilize from soil surface. In
addition, the chemical may biodegrade from the soil, and leach to
groundwater. n-Butanol released to water is expected to biodegrade and
volatilize from the water surface, and is not expected to bioconcentrate in fish.
People are exposed primarily from contact with products containing n-
butanol.
Copper and Copper Compounds (CAS: 7440-50-8)
Sources. Copper and copper compounds are commonly used as biocides in
anti-fouling paints. Many ship parts requiring anti-corrosive characteristics
(e.g., piping) are fabricated or plated with copper and copper alloys.
Toxicity. Metallic copper probably has little or no toxicity, although copper
salts are more toxic. Inhalation of copper oxide fumes and dust has been
shown to cause metal fume fever, irritation of the upper respiratory tract,
nausea, sneezing, coughing, chills, aching muscles, gastric pain, and diarrhea.
However, the respiratory symptoms may be due to a non-specific reaction to
the inhaled dust as a foreign body in the lung, and the gastrointestinal
symptoms may be attributed to the conversion of copper to copper salts in the
body.
It is unclear whether long-term copper poisoning exists in humans. Some
have related certain central nervous system disorders, such as giddiness, loss
of appetite, excessive perspiration, and drowsiness to copper poisoning.
Long-term exposure to copper may also cause hair, skin, and teeth
discoloration, apparently without other adverse effects.
People at special risk from exposure to copper include those with impaired
pulmonary function, especially those with obstructive airway diseases, since
the breathing of copper fumes might cause exacerbation of pre-existing
symptoms due to its irritant properties.
Ecologically, copper is a trace element essential to many plants and animals.
However, high levels of copper in soil can be directly toxic to certain soil
microorganisms and can disrupt important microbial processes in soil, such as
nitrogen and phosphorus cycling.
Carcinogenicity. There is currently no evidence to suggest that this chemical
is carcinogenic.
Environmental Fate. Copper is typically found in the environment as a solid
metal in soils and soil sediment in surface water. There is no evidence that
biotransformation processes have a significant bearing on the fate and
transport of copper in water.
Sector Notebook Project
55
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
Styrene (CAS: 100-42-5)
Sources. Styrene is a major constituent of fiberglass resins and gelcoats,
Toxicity. Short-term exposure may cause irritation to eyes, lungs, stomach,
and skin. Problems may occur in the central nervous system as a result of
serious exposure and may also occur in the peripheral nervous system. Short-
term exposure from inhalation is commonly associated with "styrene
sickness", which includes vomiting, loss of appetite, and a drunken feeling.
Short-term exposure also irritates the respiratory tract, and is associated with
asthma and pulmonary edema.
Long-term exposure in those working with styrene has been associated with
impaired nervous system functions including memory, learning, arid motor
skills and impaired psychiatric functioning. Styrene may also cause gene
mutations and birth defects. Styrene has been shown to cause liver damage.
Carcinogenicity. The International Agency for Research on Cancer notes
that evidence of Carcinogenicity in experimental animals indicates that styrene
is a possible carcinogen in humans. However, U.S. EPA is currently
reviewing the evidence for Carcinogenicity of styrene, and may arrive at a
different decision.
Environmental Fate and Potential for Human Exposure. If styrene is
released to air, it will quickly react with hydroxyl radicals and ozone. At
night, air concentrations of styrene will degrade by reacting with nitrate
radicals. Styrene released to water volatilizes and biodegrades, but does not
hydrolyze. In soil, styrene biodegrades and is fairly immobile in soil. Styrene
has been found in drinking water, but not in 945 groundwater supplies. The
chemical has been found in industrial effluents and in air surrounding industrial
sources and in urban areas. The chemical has been found in some food
packaged in polystyrene containers.
Sector Notebook Project
56
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
IV.C. Other Data Sources
The toxic chemical release data obtained from TRI captures only about seven
percent of the facilities in the shipbuilding and repair industry. However, it
allows for a comparison across years and industry sectors. Reported
chemicals are limited to the approximately 600 TRI chemicals. A large
portion of the emissions from shipbuilding and repair facilities, therefore, are
not captured by TRI. The EPA Office of Air Quality Planning and Standards
has compiled air pollutant emission factors for determining the total air
emissions of priority pollutants (e.g., total hydrocarbons, SOx, NOx, CO,
particulates, etc.) from many shipbuilding and repair sources.
The Aerometric Information Retrieval System (AIRS) contains a wide range
of information related to stationary sources of air pollution, including the
emissions of a number of air pollutants which may be of concern within a
particular industry. With the exception of volatile organic compounds
(VOCs), there is little overlap with the TRI chemicals reported above. Table
9 summarizes annual releases (from the industries for which a Sector
Notebook Profile was prepared) of carbon monoxide (CO), nitrogen dioxide
(NO2), particulate matter of 10 microns or less (PM10), total particulate
matter (PT), sulfur dioxide (SO2), and volatile organic compounds (VOCs).
Sector Notebook Project
57
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
Table 9: Air Pollutant Releases (tons/year)
Industry Sector
Metal Mining
Nonmetal Mining
Lumber and Wood
Production
Furniture and Fixtures
Pulp and Paper
Printing
Inorganic Chemicals
Organic Chemicals
Petroleum Refining
Rubber and Misc. Plastics
Stone, Clay and Concrete
Iron and Steel
Nonferrous Metals
Fabricated Metals
Electronics and Computers
Motor Vehicles, Bodies,
Parts and Accessories
Dry Cleaning
Ground Transportation
Metal Casting
Pharmaceuticals
Plastic Resins and
Manmade Fibers
Textiles
Power Generation
Shipbuilding and Repair
CO
4,670
25,922
122,061
2,754
566,883
8,755
153,294
112,410
734,630
2,200
105,059
1,386,461
214,243
4,925
356
15,109
102
128,625
116,538
6,586
16,388
8,177
366,208
105
NO2
39,849
22,881
38,042
1,872
358,675
3,542
106,522
187,400
355,852
9,955
340,639
153,607
31,136
11,104
1,501
27,355
184
550,551
11,911
19,088
41,771
34,523
5,986,757
862
PM10
63,541
40,199
20,456
2,502
35,030
405
6,703
14,596
27,497
2,618
192,962
83,938
10,403
1,019
224
1,048
3
2,569
10,995
1,576
2,218
2,028
140,760
638
PT
173,566
128,661
64,650
4,827
111,210
1,198
34,664
16,053
36,141
5,182
662,233
87,939
24,654
2,790
385
3,699
27
5,489
20,973
4,425
7,546
9,479
464,542
943
SO2
17,690
18,000
9,401
1,538
493,313
1,684
194,153
176,115
619,775
21,720
308,534
232,347
253,538
3,169
741
20,378
155
8,417
6,513
21,311
67,546
43,050
13,827,511
3,051
voc
915
4,002
55,983
67,604
127,809
103,018
65,427
180,350
313,982
132,945
34,337
83,882
11,058
86,472
4,866
96,338
7,441
104,824
19,031
37,214
74,138
27,768
57,384
3,967
Source: U.S. EPA Office of Air and Radiation, AIRS Database, 1997.
Sector Notebook Project
58
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
IV.D. Comparison of Toxic Release Inventory Between Selected Industries
The following information is presented as a comparison of pollutant release
and transfer data across industrial categories. It is provided to give a general
sense as to the relative scale of TRI releases and transfers within each sector
profiled under this project. Please note that the following figure and table do
not contain releases and transfers for industrial categories that are not
included in this project, and thus cannot be used to draw conclusions
regarding the total release and transfer amounts that are reported to TRI.
Similar information is available within the annual TRI Public Data Release
Book.
Figure 10 is a graphical representation of a summary of the 1995 TRI data for
the shipbuilding and repair industry and the other sectors profiled in separate
notebooks. The bar graph presents the total TRI releases and total transfers
on the vertical axis. The graph is based on the data shown in Table 10 and is
meant to facilitate comparisons between the relative amounts of releases,
transfers, and releases per facility both within and between these sectors. The
reader should note, however, that differences in the proportion of facilities
captured by TRI exist between industry sectors. This can be a factor of poor
SIC matching and relative differences in, the number of facilities reporting to
TRI from the various sectors. In the case of the shipbuilding and repair
industry, the 1995 TRI data presented here covers 43 facilities. These facilities
listed SIC 3731 (Shipbuilding and Repair) as primary SIC codes.
Sector Notebook Project
59
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
Figure 6: Summary of TRI Releases and Transfers by Industry
600
IO T-
s
0) ^- CM
* cn
CO CD
°o $9 oo co
O CM
CO CO
CM CM CM CM CM CM CM
CD
CM CO
s s
co~ >-
co CD
co
c- CD * -Ģt
co co co co
co co co
CM" co"
co co
co co
CO T- T-
co I*- co
co r-
co
CM CM CM CM CM CM
CM
SC Range
D Total Releases
Total Transfers
Source: US EPA 1995 Toxics Release Inventory Database.
SIC Ranee
22
24
25
26 11 -263 1
271 1-2789
2812-2819
2821,
2S23. 2824
Industry Sector
Textiles
Lumber and Wood Products
Furniture and Fixtures
Pulp and Paper
Printing
Inorganic Chemical
Manufacturing
Plastic Resins and Manmade
Fibers
SIC Range
2833, 2834
2861-2869
2911
30
32
331
332, 336
Industry Sector
Pharmaceuticals
Organic Chem. Mfg.
Petroleum Refining
Rubber and Misc. Plastics
Stone, Clay, and Concrete
Iron and Steel
Metal Casting
SIC Range
333, 334
34
36
371
?731
Industry Sector
Nonferrous Metals
Fabricated Metals
Electronic Equip, and Comp.
Motor Vehicles, Bodies,
Parts, and Accessories
ShiDbuildineandReBair
Sector Notebook Project
60
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
*c
J5
13
1
C/5
b
*s
J^
O
4-1
B
§J
c
s
4>
ģPN
O
H
*
o
4>
JS
H
jj
1
Ŗ
g
<8
w
3
OH
2
Ŗ"*
, J-*
2 u
w Ģ
1?
^ ^
. ^i ;*g ^
5 Ģ M 1
8*1
Ģ
s^.
Ģ ^
3 S "3
o _Ģ> o
H (2 1
"^
_, _8
H i§
*fa
{^ bfi
* J
Industry Sector
o
^
00
s
o
o
o
^H
CN
o
t-
o
o
o
en
in
oo
r-
OS
en
en
CN
CN
Textiles
o
8
SO
00
s
o
o
^H
Tf
o
o
o
SO
o
o
en
g;
en
_,.
M
rrt
Lumber and Wood Prodi
o
8
5
m
JJ
8
o
ON
CN
ON
Os
O
o
o
CN
r- 1
~*
SO
t-
en
so
en
en
m
CN
Furniture and Fixtures
o
o
o
00
ON
_,
ON
00
CN
o
in
00
~H.
m
so
in
o
o
o
en
so
r-
SO
CN
en
CN
O
en
_
en
so
CN
SO
CN
| Pulp and Paper
o
8
S
en
5
o
o
o
o
-t
0
o
o
o
ON
~~<
ON
en
en
8
CN
OS
00
t
~
CN
I
OH
O
O
o
OS
in
SO
in
00
en
^"
o
^*
Os
~*
t-
CN
o
^^
00
"=f
t
o
SO
en
*st*
ON
00
CN
CN
00
CN
^j
53
^
Source: US EPA Toxics
Sector Notebook Project
61
November 1997
-------
Shipbuilding and Repair Industry
Chemical Releases and Transfers
Page 62 intentionally left blank.
Sector Notebook Project
62
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
V. POLLUTION PREVENTION OPPORTUNITIES
The best way to reduce pollution is to prevent it in the first place. Some
companies have creatively implemented pollution prevention techniques that
improve efficiency and increase profits while at the same time minimizing
environmental impacts. This can be done in many ways such as reducing
material inputs, re-engineering processes to reuse by-products, improving
management practices, and employing substitution of toxic chemicals. Some
smaller facilities are able to actually get below regulatory thresholds just by
reducing pollutant releases through aggressive pollution prevention policies.
The Pollution Prevention Act of 1990 established a national policy of
managing waste through source reduction, which means preventing the
generation of waste. The Pollution Prevention Act also established as national
policy a hierarchy of waste management options for situations in which source
reduction cannot be implemented feasibly. In the waste management
hierarchy, if source reduction is not feasible the next alternative is recycling
of wastes, followed by energy recovery, and waste treatment as a last
alternative.
In order to encourage these approaches, this section provides both general
and company-specific descriptions of some pollution prevention advances that
have been implemented within the shipbuilding and repair industry. While the
list is not exhaustive, it does provide core information that can be used as the
starting point for facilities interested in beginning their own pollution
prevention projects. This section provides summary information from
activities that may be, or are being implemented by this sector. When
possible, information is provided that gives the context in which the technique
can be used effectively. Please note that the activities described in this section
do not necessarily apply to all facilities that fall within this sector. Facility-
specific conditions must be carefully considered when pollution prevention
options are evaluated, and the full impacts of the change must examine how
each option affects air, land and water pollutant releases.
Much of the information contained in this Section was obtained from
Hazardous Waste Minimization Guide for Shipyards, produced by the
National Shipbuilding Research Program (NSRP) in cooperation with the U.S.
Navy and National Steel and Shipbuilding Company (NASSCO). The Guide
provides and extensive discussion of pollution prevention opportunities
available to shipyards which could not all be reproduced in this document.
For further details on pollution prevention opportunities for shipyards, readers
are encouraged to consult the Guide and the additional references listed in
Section IX of this sector notebook. In addition, many of the pollution
prevention opportunities listed in the Profile of the Fabricated Metal
Products Industry Sector Notebook can also be applied to the shipbuilding and
repair industry.
Sector Notebook Project
63
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
V.A. Surface Preparation
The majority of wastes generated during surface preparation are spent
abrasives mixed with paint chips. One way the volume of waste generated can
be reduced is by using blast media that is relatively easy to reuse. Some
abrasives, such as mineral abrasives, are not easily reused. Copper slag has
a very low reuse factor and in general, can be used no more than twice before
breaking down.
Steel Shot and Grit
One of the most widely used reusable abrasives is steel grit, which is a crushed
form of steel shot. While slags and sands can only be used a couple of times,
steel abrasives can be used 50 times or more. With reused steel abrasive, care
must be taken to watch that the abrasive does not become rounded. The
abrasive works best if it has a sharp angular shape. Steel shot and grit require
a high initial outlay of capital, but they can be used repeatedly to the point that
they are more cost effective than copper slag. This medium is only deemed
hazardous when it is contaminated with a sufficient amount of paint chips.
Improving Recyclability of Abrasive Blasting Media
In order to realize the maximum usage of reusable grit, measures must be
taken to ensure it can be reused. Some media, such as steel shot, can be
reused hundreds of times. It is important that the used grit is recovered as
much as possible. With wheelabrator type equipment, this is done
automatically. The used abrasive may be vacuumed up or mechanically fed to
the blasting equipment. Containment of the abrasive allows it to be recovered,
where otherwise it could suffer from loss to overspray. Protection from the
weather, such as rain, will also prolong the-life of the grit. It is very important
that waste streams, especially hazardous waste, are not mixed with used
blasting media. Outside debris and other waste could render the grit unfit for
reuse.
Often, air powered cleaning equipment is used to screen abrasive to separate
it from large paint particles. These systems may also remove lighter dust from
the heavy abrasive. This media separation can be especially important when
the paint being removed contains heavy metals. An alternative to on-site
reclamation is to send it for processing off-site.
Plastic Media Blasting
As a substitute for other blast media, the military has experimented extensively
with plastic media stripping. This process is particularly good for stripping
coatings from parts with fragile substrates such as zinc, aluminum, and
fiberglass. It can be a lengthy process because it strips paint layer by layer.
Sector Notebook Project
64
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
The same types and quantities of waste are generated as with grit blasting, but
the plastic medium is more recyclable with the use of pneumatic media
classifiers that are part of the stripping equipment. The only waste requiring
disposal is the paint waste itself. However, the use of plastic media is fairly
limited in shipyards. Plastic blasting media do not work well on epoxy paints.
In addition, the blasting equipment is expensive and requires trained
operators.
Water Jet Stripping (Hydroblasting)
Hydroblasting is a cavitating high pressure water jet stripping system that can
remove most paints. These system may use pressures as high as 50,000 psig.
Hydroblasting is an excellent method for removing even hard coatings from
metal substrates. The process can be used for stripping hulls, removing scales
and deposits from heat exchangers, and removing rubber liners. Some
systems automatically remove the paint chips or stripped material from the
water and reuse the water for further blasting. By recirculating the water in
this manner, the amount of waste is greatly reduced. Wastewater from this
process is usually suitable for sewer disposal after the paint particles are
removed. Although this process produces very little waste, it is not always as
efficient as abrasive grit blasting and has relatively high capital and
maintenance costs.
V.B. Painting and Coating
Painting and coating operations are typically the largest single source of VOC
emissions from shipyards. In addition, paint waste can account for more than
half of the total hazardous waste generated at shipyards. Paint waste at a
shipyard may include leftover paint in containers, overspray, paint that is no
longer usable (Non-spec paint), and rags and other materials contaminated
with paint. In many cases, the amount of paint waste generated can be
reduced through the use of improved equipment, alternative coatings, and
good operating practices.
Regulations under the CAA aimed at reducing VOC emissions by limiting
VOC content in paints were finalized in 1996. Shipyards required to comply
with these rules and wishing to implement the pollution prevention options
discussed below, should consult the regulations to determine the practical and
legal implications of these options.
V.B.I. Application Equipment
In order to effectively reduce paint waste and produce a quality coating,
proper application techniques should be supplemented with efficient
application equipment. Through the use of equipment with high transfer
efficiencies, the amount of paint lost to overspray is minimized.
Sector Notebook Project
65
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
High Volume Law Pressure (HVLP) Spray Guns
The HVLP spray gun is basically a conventional air spray gun with
modifications and special nozzles that atomize the paint at very low air
pressures. The atomizing pressure of HVLP systems is often below 10 psi.
The design of this gun allows better transfer efficiency and reduced overspray
than that of conventional air guns. The low application pressure decreases
excessive bounceback and allows better adhesion of the coating to the
substrate.
Although improvements are consistently being made to overcome its
limitations, most HVLP systems have some definite drawbacks, including
difficulty atomizing viscous coatings, sensitivity to variations in incoming
pressure, sensitivity to wind, and slow application rates.
Airless Spray Guns
Instead of air passing through the spray gun, an airless system applies static
pressure to the liquid paint. As the paint passes through the nozzle, the
sudden drop in pressure atomizes the paint and it is carried to the substrate by
its own momentum. Pressure is applied to the paint by a pump locatted at a
remote supply. These systems have become favorable over conventional air-
spray systems for three main reasons: 1) reduced overspray and rebound, 2)
high application rates and transfer efficiency, and 3) permits the use of high-
build coatings with the result that fewer coats are required to achieve specific
film thickness.
One major disadvantage of some airless spray systems is the difficulty
applying very thin coats. If coatings with less than a mil in thickness are
required, such as primers applied to objects that require weld ability, it may
be difficult to use an airless system.
Electrostatic Spray
Electrostatic spray system utilize paint droplets that are given a negative
charge in the vicinity of a positively charged substrate. The droplets are
attracted to the substrate and a uniform coating is formed. This system works
well on cylindrical and rounded objects due to its "wrap-around" effect that
nearly allows the object to be coated from one side. Very little paint is lost to
overspray, and it has been noted to have a transfer efficiency of over 95%.
In order for an electrostatic system to operate properly, the correct solvent
balance is needed. The evaporation rate must be slow enough for the charged
droplets to reach the substrate in a fluid condition to flow out into a smooth
film, but fast enough to avoid sagging. The resistivity of the paint must also
be low enough to enable the paint droplets to acquire the maximum charge.
Sector Notebook Project
66
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
Although the operating costs of electrostatic spray systems are relatively low,
the initial capital investment can be high. This system has been found to work
extremely well in small parts painting applications. Sometimes the installation
of an electrostatic powder coating system can replace a water curtain spray
paint booth.
Heated Spray
.When paint is heated, its viscosity is reduced allowing it to be applied with a
higher solids content, thus requiring less solvent. When the paint is heated in
a special container and supplied to the gun at 140° to 160°F, coatings of 2 to
4 mils dry-film thickness can be applied in one operation, resulting in
considerable savings in labor cost. In addition, much of the associated solvent
emissions are eliminated.
Heating the coating prior to application can be used with both conventional
and airless spray applications. An in-line heater is used to heat the coating
before it reaches the gun. As the coating is propelled through the air, it cools
rapidly and increases viscosity after it hits the surface, allowing for better
adhesion to the substrate.
Plural Component Systems
A common problem that shipyards face when working with two-part coatings
is overmixing. Once the component parts of a catalyst coating are mixed, the
coating must be applied. Otherwise, the excess unused coating will cure and
require disposal. Additionally, the coating equipment must be cleaned
immediately after use.
One large advantage of plural component technology is the elimination of
paint waste generated by mixing an excess amount of a two part coating. This
is achieved through the use of a special mixing chamber that mixes the
pigment and catalyst seconds before the coating is applied. Each component
is pumped through a device that controls the mixing ratio and then is
combined in a mixing chamber. From the mixing chamber, the mixed coating
travels directly to the spray guns. The only cleaning that is required is the
mixing chamber, gun, and the length of supply hose connecting them.
Recycle Paint Booth Water
Various methods and equipment are used to reduce or eliminate the discharge
of the water used in water-wash booths (water curtain). These methods and
equipment prevent the continuous discharge of booth waters by conditioning
(i.e., adding detacifiers and paint-dispersing polymers) and removing paint
solids. The most basic form of water maintenance is the removal of paint
solids by manual skimming and/or raking. This can be performed without
Sector Notebook Project
67
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
water conditioning since some portion of solvent-based paints usually float
and/or sink. With the use of detacifiers and paint-dispersing polymer
treatments, more advanced methods of solids removal can be implemented.
Some common methods are discussed below.
Wet-Vacuum Filtration. Wet-vacuum filtration units consist of an industrial
wet-vacuum head on a steel drum containing a filter bag. The unit is used to
vacuum paint sludge from the booth. The solids are filtered by the bag and
the water is returned to the booth. Large vacuum units are also commercially
available that can be moved from booth to booth by forklift or permanently
installed near a large booth.
Tank-Side Weir. A weir can be attached to the side of a side-draft booth
tank, allowing floating material to overflow from the booth and be pumped to
a filtering tank for dewatering.
Consolidator. A consolidator is a separate tank into which booth water is
pumped. The water is then conditioned by the introduction of chemicals.
Detacified paint floats to the surface of the tank, where it is skimmed by a
continuously moving blade. The clean water is recycled to the booth.
Filtration. Various types of filtration units are used to remove paint solids
from booth water. This is accomplished by pumping the booth water to the
unit where the solids are separated and returning the water to the booth. The
simplest filtration unit consists of a gravity filter bed utilizing paper or cloth
media. Vacuum filters are also employed, some of which require precoating
with diatomaceous earth.
Centrifuge Methods. Two common types of centrifugal separators are the
hydrocyclone and the centrifuge. The hydrocyclone is used to concentrate
solids. The paint booth water enters a cone-shaped unit under pressure and
spins around the inside surface. The spinning imparts an increased force of
gravity, which causes most of the solid particles to be pulled outward to the
walls of the cone. Treated water exits the top of the unit and the solids exit
from the bottom. Some systems have secondary filtration devices to further
process the solids. The centrifuge works in a similar manner, except that the
booth water enters a spinning drum, which imparts the centrifugal force
needed for separating the water and solids. Efficient centrifugation requires
close control of the booth water chemistry to ensure a uniform feed. Also,
auxiliary equipment such as booth water agitation equipment may be needed
(EPA, 1995).
Convert Wash-Water Booths to Dry Filter Booths
Water-wash booths can be converted to or replaced by dry filter booths. The
dry filter booths have the potential to eliminate the discharge of wastewater,
Sector Notebook Project
68
November 1997
-------
Shipbuilding and Repair Pollution Prevention Opportunities
but they create a solid waste stream. The choice between using a water-wash
booth or a dry filter booth is primarily based on the quantity of overspray. It
is usually cost effective to use a dry filter booth when paint usage does not
exceed 20 gallons/8 hour shift/10 feet of chamber width.
A 1989 Navy study concluded that conversion from wet to dry booths can be
cost effectively performed over a range of operational scenarios. The Navy
work included a survey of military and industrial facilities that have
successfully made the conversion and an economic analysis based on typical
Navy painting operational parameters (EPA, 1995).
V.B.2. Alternative Coatings
The use of solvent-based coatings can lead to high costs to meet air and water
quality regulations. In efforts to reduce the quantity and toxicity of waste
paint disposal, alternative coatings have been developed that do not require
the use of solvents and thinners.
Powder Coatings
Metal substrates can be coated with certain resins by applying the powdered
resin to the surface, followed by application of heat. The heat melts the resin,
causing it to flow and form a uniform coating. The three main methods in use
for applying the powder coating are fluidized bed, electrostatic spray, and
flame spraying.
Flame spraying is the most applicable method for shipyards. The resin powder
is blown through the gun by compressed air. The particles are melted in a
high temperature flame and propelled against the substrate. This process is
used widely with epoxy powders for aluminum surfaces.
The electrostatic application method uses the same principles as the
electrostatic spray. The resin powder is applied to the surface
electrostatically. Heat is applied to the covered surface and the powder melts
to form the coating. The transfer efficiency and recyclability of this method
is very high.
The elimination of environmental problems associated with many liquid based
systems is one of the major advantages of powder coatings. The use of
powder coatings eliminates the need for solvents and thereby emits negligible
volatile organic compounds (VOCs). Powder coatings also reduce the waste
associated with unused two-part coatings that have already been mixed. Since
powder overspray can be recycled, material utilization is high and solid waste
generation is low. Recent case studies demonstrate that powder coating
systems can be cleaner, more efficient, and more environmentally acceptable,
while producing a higher quality finish than many other coating systems.
Sector Notebook Project 69 November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
Water-Based Paints
Water-based coatings are paints containing a substantial amount of water
instead of volatile solvents. Alkyd, polyester, acrylic, and epoxy polymers can
be dissolved and dispersed by water. In addition to reduction in
environmental hazards due to substantially lower air emissions, a decrease in
the amount of hazardous paint sludge generated can reduce disposal cost.
The application for water-based coatings in the shipyard are limited. Some of
the areas of use may include the inside of the superstructure of a vessel, and
other surfaces that are protected from extreme conditions.
V.B.3. Good Operating Practices
In many cases, simply altering a painting process can reduce wastes through
better management.
Coating Application
A good manual coating application technique is very important in reducing
waste. Most shipyards rely primarily on spraying methods for coating
application. If not properly executed, spraying techniques have a high
potential for creating waste; therefore, proper application techniques are very
important.
Reducing Overspray One of the most common means of producing paint
waste at shipyards is overspray. Overspray not only wastes some of the
coating, it also presents environmental and health hazards. It is important that
shipyards try to reduce the amount of overspray as much as possible.
Techniques for reducing overspray include: 1) triggering the paint gun at the
end of each pass instead of carrying the gun past the edge of the surface
before reversing directions, 2) avoiding excessive air pressure, and 3) keeping
the gun perpendicular to the surface being coated.
Uniform Finish Application of a good uniform finish provides the surface with
quality coating with a higher performance than an uneven finish. An uneven
coating does not dry evenly and commonly results in using excess paint.
Overlap An overlap of 50 percent can reduce the amount of waste by
increasing the production rate and overall application efficiency. Overlap of
50 percent means that for every pass that the operator makes with the spray
gun, 50 percent of the area covered by the previous pass is also sprayed. If
less than a 50 percent overlap is used, the coated surface may appear streaked.
If more than a 50 percent overlap is used, the coating is wasted and more
passes are required to coat the surface.
Sector Notebook Project
70
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
General Housekeeping
Small quantities of paint and solvents are frequently lost due to poor
housekeeping techniques. There are a variety of ways that can be
implemented to control and minimize spills and leaks. Specific approaches to
product transfer methods and container handling can effectively reduce
product loss.
The potential for accidents and spills is at the highest point when thinners and
paints are being transferred from bulk drum storage to the process equipment.
Spigots, pumps, and funnels should be used whenever possible.
Evaporation can be controlled by using tight fitting lids, spigots, and other
equipment. The reduction in evaporation will increase the amount of available
material and result in lower solvent purchase cost.
Paint Containers
A significant portion of paint waste is the paint that remains inside a container
after the container is emptied, and paint that is placed in storage, not used,
and becomes outdated or non-spec. Shipyards should try to consolidate paint
use to facilitate the purchase of paint in bulk. Since large bulk containers have
less surface area than an equivalent volume of small cans, the amount of drag-
on paint waste is reduced. Large bulk containers can sometimes be returned
to the paint supplier to be cleaned for reuse.
If the purchase of paint in bulk containers is not practical, the paint should be
purchased in the smallest amount required to minimize outdated or non-spec
paint waste. Workers should not have to open a gallon can when only a quart
is required. Usually, any paint that is left in the can will require disposal as
hazardous waste.
V.C. Metal Plating and Surface Finishing
Pollution prevention opportunities in metal plating and surface finishing
operations are discussed in detail in NSRP's Hazardous Waste Minimization
Guide for Shipyards and in the Profile of the Fabricated Metal Products
Industry Sector Notebook. Readers are encouraged to consult these
documents for pollution prevention information relating to metal plating and
surface finishing.
Sector Notebook Project
71
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
V.D. Fiberglass Reinforced Construction
Material Application
Major waste reduction is available by optimizing material application
processes. These processes include spray delivery systems and non-spray
resin application methods. Non-spray application methods include closed
mold systems, vacuum bag mold systems, resin roller dispensers, prespray
fiber reinforcing, and in-house resin impregnation. These no-spray techniques
reduce material waste and energy costs during application. The lower
application pressures reduce the cost and maintenance of pressure lines,
pumps, controls, and fittings. Routine cleanups of work areas are also
reduced.
Spray Delivery Systems
The fabrication process for fiberglass construction and the wastes produced
are highly dependent on the equipment and procedures used. The current
system of resin and gelcoat delivery systems include high-pressure air,
medium-pressure airless, and low-pressure air-assisted airless spray guns.
The high-pressure air system is used less due to the large amount of
expensive high-pressure compressed air required and significant air
emissions generated.
The airless method produces a pressurized resin stream
electrostatically atomized through a nozzle. The nozzle orifice and
spray angle can be varied by using different tips. The size of the
orifice affects the delivery efficiency, with larger orifices resulting in
greater raw material loss. Airless spray guns are considered to be very
efficient in the delivery of resin to the work surface.
The air-assisted airless technology modifies the airless gun by
introducing pressurized air on the outer edge of the resin stream as it
exits the pressure nozzle. The air stream forms an envelope which
focuses the resin to follow a controllable spray pattern. Since more
resin ends up on the mold with this technology, the amount of
spraying is reduced leading to a reduction in air emissions. It is
estimated that a savings of 5 to 20 percent in net loss of resin spray
waste for the air-assisted airless gun is achieved compared to the
airless gun.
Sector Notebook Project
72
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
Resin Roller Application
This application uses pumped resin and catalyst from drums or bulk
containers. The resin and catalyst are precisely metered in a gun-type line
much like the paint plural component systems. A resin roller dispenser
transfers the catalyzed resin to the mold surface. This eliminates the material
lost due to overspray and bounceback of the resin. Air emissions are also
greatly reduced with this type of delivery system.
Thermoplastic Resins
Thermoplastic resins have the advantage of being easily recycled by applying
heat which returns the resin to a liquid state. In its liquid state, the resin can
be reused in the manufacture of other fiberglass components in shipbuilding.
The use of thermoplastics offers faster curing cycles, lower emission during
processing, lower costs per pound of raw material used, ease of recycling
material, and, in some cases, lower labor costs. With the recent advances in
the processing technologies and thermoplastic resin systems, the shipbuilding
industries are reexamining the application of thermoplastics versus thermosets
material systems.
V.E. Solvent Cleaning and Degreasing
Shipyards often use large quantities of solvents in a variety of cleaning and
degreasing operations including parts cleaning, process equipment cleaning,
and surface preparation for coating applications. The final cost of solvent
used for various cleanup operations is nearly twice the original purchase price
of the virgin solvent. The additional cost is primarily due to the fact that for
each drum purchased, extra disposal cost, hazardous materials transportation
cost, and manifesting time and expense are incurred. With the rising cost of
solvents and waste disposal services, combined with continuously developing
regulation, reducing the quantities of solvents used and solvent wastes
generated can be extremely cost effective.
Eliminating the Use of Solvents
Eliminating the use of solvents avoids any waste generation associated with
spent solvent. Elimination can be achieved by utilization of non-solvent
cleaning agents or eliminating the need for cleaning altogether. Solvent
elimination applications include the use of water-soluble cutting fluids,
protective peel coatings, aqueous cleaners, and mechanical cleaning systems.
Water-soluble Cutting Fluids. Water-soluble cutting fluids can often be used
in place of oil-based fluids. The cutting oils usually consist of an oil-in-water
emulsion used to reduce friction and dissipate heat. If these fluids need to be
removed after the machining process is complete, solvents may be needed.
Sector Notebook Project
73
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
In efforts to eliminate solvent degreasing and its subsequent waste, special
water-soluble cutting fluids have been developed. Systems are available that
can clean the cutting fluid and recycle the material back to the cutting
operation. Obstacles to implementing this method are: cost (water-soluble
fluids are generally more expensive), procurement (there are only a few
suppliers available), and the inability to quickly switch between fluid types
without thoroughly cleaning the equipment.
Aqueous Cleaners Aqueous cleaners, such as alkali, citric, and caustic base,
are often useful substitutes for solvents. There are many formulations that are
suited for a variety of cleaning requirements. Many aqueous cleaners have
been found to be as effective as the halogenated solvents that are commonly
employed.
The advantages of substituting aqueous cleaners include minimizing worker's
exposure to solvent vapors, reducing liability and disposal problems
associated with solvent use, and cost. Aqueous cleaners do not volatilize as
quickly as other solvents, thereby reducing losses due to evaporation. Since
most aqueous cleaners are biodegradable, disposal is not a problem once the
organic or inorganic contaminants are removed.
The use of aqueous cleaners can also result in cost savings. Although some
aqueous cleaners may cost less than an equivalent amount of solvent, the
purchase price of each is about the same. The cost of disposal, loss due to
evaporation, and associated liabilities, however, favor aqueous cleaners.
The disadvantages of aqueous cleaners in place of solvents may include:
possible inability of the aqueous cleaners to provide the degree of cleaning
required, incompatibility between the parts being cleaned and the cleaning
solution, need to modify or replace existing equipment, and problems
associated with moisture left on parts being cleaned. Oils removed from the
parts during cleaning may float on the surface of the cleaning solution and
may interfere with subsequent cleaning. Oil skimming is usually required.
Mechanical Cleaning Systems Utilizing mechanical cleaning systems can also
replace solvents in degreasing and cleaning operations. In many cases, a high
pressure steam gun or high pressure parts washer can clean parts and surfaces
quicker and to the same degree of cleanliness as that of the solvents they
replace. Light detergents can be added to the water supply for improved
cleaning. The waste produced by these systems is usually oily wastewater.
This wastewater can be sent through an oil/water separator, the removed
water discharged to the sewer, and the oil residue sent to a petroleum
recycler. Some hot water wash and steam systems can be supplemented by
emulsifying solutions to speed the process. Although these additives speed
the cleaning process, they can make separation of the oil from the waiter very
difficult and create problems with disposal of the waste.
Sector Notebook Project
74
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
Non-Solvent Based Paint Stripping Non-solvent based paint stripping
methods are viable substitutes for solvent stripping. Paint stripping is
normally performed by soaking, spraying, or brushing surfaces with a
stripping agent such as methylene chloride, chromates, phenols, or strong
acids. After the agent has remained on the parts for a period, the surface is
rinsed with water and the loosened paint is sprayed or brushed off. The
alternatives to solvent stripping agents include aqueous striping agents, use
of abrasives, cryogenic stripping, and thermal stripping.
Aqueous stripping agents, such as caustic soda (NaOH), are often employed
in place of methylene chloride based strippers. Caustic solutions have the
advantage of eliminating solvent vapor emissions. A typical caustic bath
consists of about 40 percent caustic solution heated to about 200 degrees
Fahrenheit. Caustic stripping is generally effective on alkyl resins and oil
paints.
Cryogenic stripping utilizes liquid nitrogen and non-abrasive plastic beads as
blasting shot. This method relies on the freezing effect of the liquid nitrogen
and the impact of the plastic shot. Subjecting the surface to extremely low
temperatures creates stress between the coating and the substrate causing the
coating to become brittle. When the plastic shot hits the brittle coating,
debonding occurs. The process is non-abrasive, and will not damage the
substrate, but effects of the metal shrinkage, due to extremely low
temperatures, should be monitored. The process does not produce liquid
wastes, and nitrogen, chemically inert, is already present in the atmosphere
(U.S. EPA, March 1997).
The most common form of non-solvent paint stripping in shipyards is the use
of abrasive blasting. The use of various metallic grit propelled at high
pressure against the surface is very effective to remove marine coatings.
Thermal stripping methods can be useful for objects that cannot be immersed.
In this process, superheated air is directed against the surface of the object.
The high temperatures cause some paints to flake off. The removal results
from the drying effects of the air and the uneven expansion of the paint and
the substrate. Some paints will melt at high temperatures, allowing the paint
to be scraped off. Hand-held units are available that produce a jet of hot air.
Electric units and open flame or torch units are also used. While this system
is easy to implement, it is limited to items that are not heat sensitive and to
coatings that are affected by the heat.
Reducing the Use of Solvent
By eliminating the use or need for solvent cleaning, the problems associated
with disposal of spent solvent are also eliminated. In cases where the
elimination of solvent use is not possible or practical, utilization of various
Sector Notebook Project
75
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
solvent waste reduction techniques can lead to a substantial savings in solvent
waste.
Methods of reducing solvent usage can be divided into three categories:
source control of air emissions, efficient use of solvent and equipment, and
maintaining solvent quality. Source control of air emissions addresses ways
in which more of the solvent can be kept inside a container or cleaning tank
by reducing the chances for evaporation loss. Efficient use of solvent and
equipment through better operating procedures can reduce the amount of
solvent required for cleaning. Maintaining the quality of solvent will extend
the lifecycle effectiveness of the solvent.
Source Control of Air Emissions Source control of air emissions can be
achieved through equipment modification and proper operation of equipment.
Some simple control measures include installation and use of lids, an increase
of freeboard height of cleaning tanks, installation of freeboard chillers, and
taking steps to reduce solvent drag-out.
All cleaning units, including cold cleaning tanks and dip tanks, should have
some type of lid installed. When viewed from the standpoint of reducing air
emissions, the roll-type cover is preferable to the hinge type. Lids that swing
down can cause a piston effect and force the escape of solvent vapor. In
operations such as vapor degreasing, use of lids can reduce solvent loss from
24 percent to 50 percent. For tanks that are continuously in use, covers have
been designed that allow the work pieces to enter and leave the tank while the
lid remains closed.
In an open top vapor degreaser, freeboard is defined as the distance from the
top of the vapor zone to the top of the tank. Increasing the freeboard will
substantially reduce the amount of solvent loss. A freeboard chiller may also
be installed above the primary condenser coil. This refrigerated coil, much
like the cooling jacket, chills the air above the vapor zone and creates a
secondary barrier to vapor loss. Reduction in solvent usage, by use of
freeboard chillers, can be as high as 60 percent. The major drawback with a
freeboard chiller is that it can introduce water (due to condensation from air)
into the tank.
In addition to measures that reduce air emissions through equipment
modification, it is also possible to reduce emissions through proper equipment
layout, operation, and maintenance. Cleaning tanks should be located in areas
where air turbulence and temperature do not promote vapor loss.
Maximize the Dedication of the Process Equipment In addition to reduction
in vapor loss, reducing the amount of solvent used can be achieved through
better operating practices that increase the efficiency of solvent cleaning
operations. Maximizing the dedication of the process equipment reduces the
Sector Notebook Project
76
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
need for frequent cleaning. By using a mix tank consistently for the same
formulation, the need to clean equipment between batches is eliminated.
Avoid Unnecessary Cleaning Avoiding unnecessary cleaning also offers
potential for waste reduction. For example, paint mixing tanks for two-part
paints are often cleaned between batches of the same product. The effect of
cross-contamination between batches should be examined from a product
quality control viewpoint to see if the cleaning step is always necessary.
Process pipelines are often flushed with some type of solvent to remove
deposits on the pipe walls. Cleaning the pipelines can be achieved by using
an inert gas propellant to remove deposits. This method can only be used if
the pipelines do not have many bends or sharp turns.
Proper Production Scheduling Proper production scheduling can reduce
cleaning frequency by eliminating the need for cleaning between the
conclusion of one task and the start of the next. A simple example of this
procedure is to have a small overlap between shifts that perform the same
operation with the same equipment. This allows the equipment that would
normally be cleaned and put away at the end of each shift, such as painting
equipment, to be taken over directly by the relief.
Clean Equipment Immediately Cleaning equipment immediately after use
prevents deposits from hardening and avoids the need for consuming extra
solvent. Letting dirty equipment accumulate and be cleaned later can also
increase the time required for cleaning.
Better Operating Procedures Better operating procedures can minimize
equipment clean-up waste. Some of the methods already discussed are
examples of better operating procedures. Better operator training, education,
closer supervision, improved equipment maintenance, and increasing the use
of automation are very effective in waste minimization.
Reuse Solvent Waste Reuse of solvent waste can reduce or eliminate waste
and result in a cost savings associated with a decrease in raw material
consumption. The solvent from cleaning operations can be reused in other
cleaning processes in which the degree of cleanliness required is much less.
This will be discussed in more detail in the next section.
Solvent Recycling
Although not a preferable as source reduction, solvent recycling may be a
viable alternative for some shipyards. The goal of recycling is to recover from
the waste solvent, a solvent of a similar purity to that of the virgin solvent for
eventual reuse in the same operation, or of a sufficient purity to be used in
another application. Recycling can also include the direct use of solvent waste
Sector Notebook Project
77
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
from one waste stream in another operation. There are a number of techniques
that shipyards can use onsite to separate solvents from contaminants including
distillation, evaporation, sedimentation, decanting, centrifugation, filtering,
and membrane separation.
V.F. Machining and Metalworking
Coolant fluids account for the largest waste stream generated by machining
operations. Waste metalworking fluids are created when the fluids are no
longer usable due to contamination by oils or chemical additives. If the
contamination rate of the metalworking fluids is reduced, the need to replace
them will be less frequent. This will reduce the waste generated.
Preventing Fluid Contamination
Fluid can become hazardous waste if it is contaminated. Although it is not
possible to eliminate contamination, it is possible to reduce the rate of
contamination and thereby prolong its use.
The primary contaminant in these waste fluids is tramp oil. One way to
postpone contamination is to promote better maintenance of the wipers and
seals. A preventative maintenance program should be installed and enforced
in the machine shop. Scheduled sump and machine cleaning as well as
periodic inspections of the wipers and oil seals should be carried out. The
responsibility for this should be assigned to some person or group in a
position of authority to ensure its success.
Synthetic Fluids
Synthetic fluids have many advantages over the non-synthetic counterparts.
Usually the synthetic varieties do not lubricate as effectively, but they are less
susceptible to contamination and highly resistant to biological breakdown.
Most synthetic fluids have superior longevity and can operate over a large
temperature range without adverse side effects. Straight oils should be
replaced with synthetic ones when possible.
Recycling Fluids
Once all of the source reduction options have been considered, it is time to
explore the possibilities of reuse. It should be noted that in many cases, after
the majority of the contaminants have been removed, further treatment with
chemicals or concentrated fluid is necessary before the fluids can be
recirculated through the machines.
Filtration. Filtration is a common way to remove particles from the fluid as
well as tramp oils or other contaminants. Many different types of filters can
Sector Notebook Project 78
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
be used depending on the medium to be filtered and the amount of filtration
desired. Contaminated cutting fluids can be passed through a bag, disc, or
cartridge filter or separated in a centrifuge.
Skimming and Flotation. Although it is a slow process, skimming of
contaminants is inexpensive and can be very effective. The principle is to let
the fluid sit motionless in a sump or a tank, and after a predetermined amount
of time, the unwanted oils are skimmed off the surface and the heavier
paiticulate matter is collected off the bottom. A similar technique, flotation,
injects high pressure air into contaminated cutting fluid. As the air comes out
of solution and bubbles to the surface, it attaches itself to suspended
contaminants and carries them up to the surface. The resulting sludge is
skimmed off the surface and the clean fluid is reused.
Centrifugation . Centrifugation uses the same settling principles as flotation,
but the effects of gravity are multiplied thousands of times due to the spinning
action of the centrifuge. This will increase the volume of fluids which can be
cleaned in a given amount of time.
Pasteurization. Pasteurization uses heat treatment to kill microorganisms in
the fluid and reduce the rate at which rancidity (biological breakdown) will
occur. Unfortunately, heat can alter the properties of the fluid and render it
less effective. Properties lost in this way are usually impossible to recover.
Downgrading. Sometimes it is possible to use high quality hydraulic oils as
cutting fluids. After the oils have reached their normal usable life, they no
longer meet the high standards necessary for hydraulic components. At this
time they are still good enough to be used for the less demanding jobs. It may
be necessary to treat the fluid before it can be reused, but changing fluid's
functions in this manner has proven successful in the past.
Sector Notebook Project
79
November 1997
-------
Shipbuilding and Repair
Pollution Prevention Opportunities
Page 80 intentionally left blank.
Sector Notebook Project
80
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
VI. SUMMARY OF FEDERAL STATUTES AND REGULATIONS
This section discusses the Federal regulations that may apply to this sector.
The purpose of this section is to highlight and briefly describe the applicable
Federal requirements, and to provide citations for more detailed information.
The three following sections are included:
Section VI. A. contains a general overview of major statutes
Section VLB. contains a list of regulations specific to this industry
Section VI. C. contains a list of pending and proposed regulations
The descriptions within Section VI are intended solely for general
information. Depending upon the nature or scope of the activities at a
particular facility, these summaries may or may not necessarily describe all
applicable environmental requirements. Moreover, they do not constitute
formal interpretations or clarifications of the statutes and regulations. For
further information, readers should consult the Code of Federal Regulations
and other state or local regulatory agencies. EPA Hotline contacts are also
provided for each major statute.
VI.A. General Description of Major Statutes
Resource Conservation and Recovery Act
The Resource Conservation And Recovery Act (RCRA) of 1976, which
amended the Solid Waste Disposal Act, addresses solid (Subtitle D) and
hazardous (Subtitle C) waste management activities. The Hazardous and
Solid Waste Amendments (HSWA) of 1984 strengthened RCRA's waste
management provisions and added Subtitle I, which governs underground
storage tanks (USTs).
Regulations promulgated pursuant to Subtitle C of RCRA (40 CFR Parts
260-299) establish a "cradle-to-grave" system governing hazardous waste
from the point of generation to disposal. RCRA hazardous wastes include the
specific materials listed in the regulations (commercial chemical products,
designated with the code "P" or "U"; hazardous wastes from specific
industries/sources, designated with the code "K"; or hazardous wastes from
non-specific sources, designated with the code "F") or materials which exhibit
a hazardous waste characteristic (ignitability, corrosivity, reactivity, or toxicity
and designated with the code "D").
Regulated entities that generate hazardous waste are subject to waste
accumulation, manifesting, and record keeping standards. Facilities must
obtain a permit either from EPA or from a State agency which EPA has
authorized to implement the permitting program if they store hazardous
wastes for more than 90 days (or 180 days depending on the amount of waste
Sector Notebook Project
81
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
generated) before treatment or disposal. Facilities may treat hazardous wastes
stored in less-than-ninety-day tanks or containers without a permit provided
the procedure is approved by a state agency having RCRA delegation
authority. Subtitle C permits contain general facility standards such as
contingency plans, emergency procedures, record keeping and reporting
requirements, financial assurance mechanisms, and unit-specific standards.
RCRA also contains provisions (40 CFR Part 264 Subpart S and §264.10) for
conducting corrective actions which govern the cleanup of releases of
hazardous waste or constituents from solid waste management units at
RCRA-regulated facilities.
Although RCRA is a Federal statute, many States implement the RCRA
program. Currently, EPA has delegated its authority to implement various
provisions of RCRA to 47 of the 50 States and two U.S. territories.
Delegation has not been given to Alaska, Hawaii, or Iowa.
Most RCRA requirements are not industry specific but apply to any company
that generates, transports, treats, stores, or disposes of hazardous waste.
Here are some important RCRA regulatory requirements:
Identification of Solid and Hazardous Wastes (40 CFR Part 261)
lays out the procedure every generator must follow to determine
whether the material in question is considered a hazardous waste,
solid waste, or is exempted from regulation.
Standards for Generators of Hazardous Waste (40 CFR Part 262)
establishes the responsibilities of hazardous waste generators including
obtaining an EPA ID number, preparing a manifest, ensuring proper
packaging and labeling, meeting standards for waste accumulation
units, and recordkeeping and reporting requirements. Generators can
accumulate hazardous waste for up to 90 days (or 180 days depending
on the amount of waste generated) without obtaining a permit.
Land Disposal Restrictions (LDRs) (40 CFR Part 268) are
regulations prohibiting the disposal of hazardous waste on land
without prior treatment. Under the LDRs program, materials must
meet LDR treatment standards prior to placement in a RCRA land
disposal unit (landfill, land treatment unit, waste pile, or surface
impoundment). Generators of waste subject to the LDRs must provide
notification of such to the designated TSD facility to ensure proper
treatment prior to disposal.
Used Oil Management Standards (40 CFR Part 279) impose
management requirements affecting the storage, transportation,
burning, processing, and re-refining of the used oil. For parties that
Sector Notebook Project
82
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
merely generate used oil, regulations establish storage standards. For
a party considered a used oil processor, re-refiner, burner, or marketer
(one who generates and sells off-specification used oil), additional
tracking and paperwork requirements must be satisfied.
RCRA contains unit-specific standards for all units used to store,
treat, or dispose of hazardous waste, including Tanks and
Containers. Tanks and containers used to store hazardous waste
with a high volatile organic concentration must meet emission
standards under RCRA. Regulations (40 CFRPart 264-265, Subpart
CC) require generators to test the waste to determine the
concentration of the waste, to satisfy tank and container emissions
standards, and to inspect and monitor regulated units. These
regulations apply to all facilities that store such waste, including large
quantity generators accumulating waste prior to shipment off-site.
Underground Storage Tanks (USTs) containing petroleum and
hazardous substances are regulated under Subtitle I of RCRA.
Subtitle I regulations (40 CFR Part 280) contain tank design and
release detection requirements, as well as financial responsibility and
corrective action standards for USTs. The UST program also
includes upgrade requirements for existing tanks that must be met by
December 22, 1998.
Boilers and Industrial Furnaces (BIFs) that use or burn fuel
containing hazardous waste must comply with design and operating
standards. BIF regulations (40 CFR Part 266, Subpart H) address
unit design, provide performance standards, require emissions
monitoring, and restrict the type of waste that may be burned.
EPA'sRCRA, SuperfundandEPCRA Hotline, at (800) 424-9346, responds
to questions and distributes guidance regarding all RCRA regulations. The
RCRA Hotline operates weekdays from 9:00 a.m. to 6:00 p.m., ET, excluding
Federal holidays.
Comprehensive Environmental Response, Compensation, and Liability Act
The Comprehensive Environmental Response, Compensation, and Liability
Act (CERCLA), a 1980 law known commonly as Superfund, authorizes EPA
to respond to releases, or threatened releases, of hazardous substances that
may endanger public health, welfare, or the environment. CERCLA also
enables EPA to force parties responsible for environmental contamination to
clean it up or to reimburse the Superfund for response costs incurred by EPA.
The Superfund Amendments and Reauthorization Act (SARA) of 1986
revised various sections of CERCLA, extended the taxing authority for the
Sector Notebook Project
83
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
Superfund, and created a free-standing law, SARA Title IE, also known as the
Emergency Planning and Community Right-to-Know Act (EPCRA).
The CERCLA hazardous substance release reporting regulations (40 CFR
Part 302) direct the person in charge of a facility to report to the National
Response Center (NRC) any environmental release of a hazardous substance
which equals or exceeds a reportable quantity. Reportable quantities are listed
in 40 CFR §302.4. A release report may trigger a response by EPA, or by one
or more Federal or State emergency response authorities.
EPA implements hazardous substance responses according to procedures
outlined in the National Oil and Hazardous Substances Pollution Contingency
Plan (NCP) (40 CFR Part 300). The NCP includes provisions for permanent
cleanups, known as remedial actions, and other cleanups referred to as
removals. EPA generally takes remedial actions only at sites on the National
Priorities List (NPL), which currently includes approximately 1300 sites.
Both EPA and states can act at sites; however, EPA provides responsible
parties the opportunity to conduct removal and remedial actions and
encourages community involvement throughout the Superfund response
process.
EPA'sRCRA, Superfund and EPCRA Hotline, at (800) 424-9346, answers
questions and references guidance pertaining to the Superfund program.
This Hotline, which addresses CERCLA issues, operates weekdays from 9:00
a.m. to 6:00 p.m., ET, excluding Federal holidays.
Emergency Planning And Community Right-To-Know Act
The Superfund Amendments and Reauthorization Act (SARA) of 1986
created the Emergency Planning and Community Right-to-Know Act
(EPCRA, also known as SARA Title III), a statute designed to improve
community access to information about chemical hazards and to facilitate the
development of chemical emergency response plans by State arid local
governments. EPCRA required the establishment of State emergency
response commissions (SERCs), responsible for coordinating certain
emergency response activities and for appointing local emergency planning
committees (LEPCs).
EPCRA and the EPCRA regulations (40 CFR Parts 350-372) establish four
types of reporting obligations for facilities which store or manage specified
chemicals:
EPCRA §302 requires facilities to notify the SERC and LEPC of the
presence of any extremely hazardous substance (the list of such
substances is in 40 CFR Part 355, Appendices A and B) if it has such
substance in excess of the substance's threshold planning quantity, and
Sector Notebook Project
84
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
directs the facility to appoint an emergency response coordinator.
EPCRA §304 requires the facility to notify the SERC and the LEPC
. in the event of a release equaling or exceeding the reportable quantity
of a CERCLA hazardous substance or an EPCRA extremely
hazardous substance.
EPCRA §311 and §312 require a facility at which a hazardous
chemical, as defined by the Occupational Safety and Health Act, is
present in an amount exceeding a specified threshold to submit to the
SERC, LEPC and local fire department material safety data sheets
(MSDSs) or lists of MSDSs and hazardous chemical inventory forms
(also known as Tier I and II forms). This information helps the local
government respond in the event of a spill or release of the chemical.
EPCRA §313 requires manufacturing facilities included in SIC codes
20 through 39, which have ten or more employees, and which
manufacture, process, or use specified chemicals in amounts greater
than threshold quantities, to submit an annual toxic chemical release
report. This report, known commonly as the Form R, covers releases
and transfers of toxic chemicals to various facilities and environmental
media, and allows EPA to compile the national Tbxic Release
Inventory (TRI) database.
All information submitted pursuant to EPCRA regulations is publicly
accessible, unless protected by a trade secret claim.
EPA'sRCRA, Super/and and EPCRA Hotline, at (800) 424-9346, answers
questions and distributes guidance regarding the emergency planning and
community right-to-know regulations. The EPCRA Hotline operates
weekdays from 9:00 a.m. to 6:00 p.m., ET, excluding Federal holidays.
Clean Water Act
The primary objective of the Federal Water Pollution Control Act, commonly
referred to as the Clean Water Act (CWA), is to restore and maintain the
chemical, physical, and biological integrity of the nation's surface waters.
Pollutants regulated under the CWA include "priority" pollutants, including
various toxic pollutants; "conventional" pollutants, such as biochemical
oxygen demand (BOD), total suspended solids (TSS), fecal coliform, oil and
grease, and pH; and "non-conventional" pollutants, including any pollutant not
identified as either conventional or priority.
The CWA regulates both direct and indirect discharges. The National
Pollutant Discharge Elimination System (NPDES) program (CWA §502)
controls direct discharges into navigable waters. NPDES permits, issued by
Sector Notebook Project 85 November 1997
-------
Shinbuilding and Repair Industry
Federal Statutes and Regulations
either EPA or an authorized State (EPA has authorized 42 States to
administer the NPDES program), contain industry-specific, technology-based
and/or water quality-based limits, and establish pollutant monitoring
requirements. A facility that intends to discharge into the nation's waters
must obtain a permit prior to initiating its discharge. A permit applicant must
provide quantitative analytical data identifying the types of pollutants present
in the facility's effluent. The permit will then set the conditions and effluent
limitations on the facility discharges.
A NPDES permit may also include discharge limits based on Federal or State
water quality criteria or standards, that were designed to protect designated
uses of surface waters, such as supporting aquatic life or recreation. These
standards, unlike the technological standards, generally do not take into
account technological feasibility or costs. Water quality criteria and standards
vary from State to State, and site to site, depending on the use classification
of the receiving body of water. Most States follow EPA guidelines which
propose aquatic life and human health criteria for many of the 126 priority
pollutants.
Storm Water Discharges
In 1987 the CWA was amended to require EPA to establish a program to
address storm water discharges. In response, EPA promulgated the NPDES
storm water permit application regulations. These regulations require that
facilities with the following storm water discharges apply for an NPDES
permit: (1) a discharge associated with industrial activity; (2) a discharge
from a large or medium municipal storm sewer system; or (3) a discharge
which EPA or the State determines to contribute to a violation of a water
quality standard or is a significant contributor of pollutants to waters of the
United States.
The term "storm water discharge associated with industrial activity" means a
storm water discharge from one of 11 categories of industrial activity defined
at 40 CFR 122.26. Six of the categories are defined by SIC codes while the
other five are identified through narrative descriptions of the regulated
industrial activity. If the primary SIC code of the facility is one of those
identified in the regulations, the facility is subject to the storm water permit
application requirements. If any activity at a facility is covered by one of the
five narrative categories, storm water discharges from those areas where the
activities occur are subject to storm water discharge permit application
requirements.
Those facilities/activities that are subject to storm water discharge permit
application requirements are identified below. To determine whether a
particular facility falls within one of these categories, consult the regulation.
Sector Notebook Project
86
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
Category i: Facilities subject to storm water effluent guidelines, new source
performance standards, or toxic pollutant effluent standards.
Category ii: Facilities classified as SIC 24-lumber and wood products
(except wood kitchen cabinets); SIC 26-paper and allied products (except
paperboard containers and products); SIC 28-chemicals and allied products
(except drugs and paints); SIC 291-petroleum refining; and SIC 311-leather
tanning and finishing, 32 (except 323)-stone, clay, glass, and concrete, 33-
primary metals, 3441-fabricated structural metal, and 373-ship and boat
building and repairing.
Category iii: Facilities classified as SIC 10-metal mining; SIC 12-coal
mining; SIC 13-oil and gas extraction; and SIC 14-nonmetallic mineral
mining.
Category iv: Hazardous waste treatment, storage, or disposal facilities.
Category v: Landfills, land application sites, and open dumps that receive or
have received industrial wastes.
Category vi: Facilities classified as SIC 5015-used motor vehicle parts; and
SIC 5093-automotive scrap and waste material recycling facilities.
Category vii: Steam electric power generating facilities.
Category viii: Facilities classified as SIC 40-railroad transportation; SIC 41-
local passenger transportation; SIC 42-trucking and warehousing (except
public warehousing and storage); SIC 43-U.S. Postal Service; SIC 44-water
transportation; SIC 45-transportation by air; and SIC 5171-petroleum bulk
storage stations and terminals.
Category ix: Sewage treatment works.
Category x: Construction activities except operations that result in the
disturbance of less than five acres of total land area.
Category xi: Facilities classified as SIC 20-food and kindred products; SIC
21-tobacco products; SIC 22-textile mill products; SIC 23-apparel related
products; SIC 2434-wood kitchen cabinets manufacturing; SIC 25-furniture
and fixtures; SIC 265-paperboard containers and boxes; SIC 267-converted
paper and paperboard products; SIC 27-printing, publishing, and allied
industries; SIC 283-drugs; SIC 285-paints, varnishes, lacquer, enamels, and
allied products; SIC 30-rubber and plastics; SIC 31-leather and leather
products (except leather tanning and finishing); SIC 323-glass products; SIC
34-fabricated metal products (except fabricated structural metal); SIC 35-
Sector Notebook Project
87
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
industrial and commercial machinery and computer equipment; SIC 36-
electronic and other electrical equipment and components; SIC 37-
transportation equipment (except ship and boat building and repair); SIC 38-
measuring, analyzing, and controlling instruments; SIC 39-misceilaneous
manufacturing industries; and SIC 4221-4225-public warehousing and
storage.
Pretreatment Program
Another type of discharge that is regulated by the CWA is one that goes to
a publicly-owned treatment works (POTW). The national pretreatment
program (CWA §307(b)) controls the indirect discharge of pollutants to
POTWs by "industrial users." Facilities regulated under §307(b) must meet
certain pretreatment standards. The goal of the pretreatment program is to
protect municipal wastewater treatment plants from damage that may occur
when hazardous, toxic, or other wastes are discharged into a sewer system
and to protect the quality of sludge generated by these plants. Discharges to
a POTW are regulated primarily by the POTW, rather than the State or EPA.
EPA has developed technology-based standards for industrial users of
POTWs. Different standards apply to existing and new sources within each
category. "Categorical" pretreatment standards applicable to an industry on
a nationwide basis are developed by EPA. In addition, another kind of
pretreatment standard, "local limits," are developed by the POTW in order to
assist the POTW in achieving the effluent limitations in its NPDES permit.
Regardless of whether a State is authorized to implement either the NPDES
or the pretreatment program, if it develops its own program, it may enforce
requirements more stringent than Federal standards.
Spill Prevention. Control and Countermeasure Plans
The 1990 Oil Pollution Act requires that facilities that could reasonably be
expected to discharge oil in harmful quantities prepare and implement more
rigorous Spill Prevention Control and Countermeasure (SPCC) Plan required
under the CWA (40 CFR §112.7). There are also criminal and civil penalties
for deliberate or negligent spills of oil. Regulations covering response to oil
discharges and contingency plans (40 CFR Part 300), and Facility Response
Plans to oil discharges (40 CFR §112.20) and for PCB transformers and PCB-
containing items were revised and finalized in 1995.
EPA 's Office of Water, at (202) 260-5700, will direct callers with questions
about the CWA to the appropriate EPA office. EPA also maintains a
bibliographic database of Office of Water publications -which can be
accessed through the Ground Water and Drinking Water resource center, at
(202) 260-7786.
Sector Notebook Project
88
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
Safe Drinking Water Act
The Safe Drinking Water Act (SDWA) mandates that EPA establish
regulations to protect human health from contaminants in drinking water.
The law authorizes EPA to develop national drinking water standards and to
create a joint Federal-State system to ensure compliance with these standards.
The SDWA also directs EPA to protect underground sources of drinking
water through the control of underground injection of liquid wastes.
EPA has developed primary and secondary drinking water standards under its
SDWA authority. EPA and authorized States enforce the primary drinking
water standards, which are, contaminant-specific concentration limits that
apply to certain public drinking water supplies. Primary drinking water
standards consist of maximum contaminant level goals (MCLGs), which are
non-enforceable health-based goals, and maximum contaminant levels
(MCLs), which are enforceable limits set as close to MCLGs as possible,
considering cost and feasibility of attainment.
The SDWA Underground Injection Control (UIC) program (40 CFR Parts
144-148) is a permit program which protects underground sources of drinking
water by regulating five classes of injection wells. UIC permits include
design, operating, inspection, and monitoring requirements. Wells used to
inject hazardous wastes must also comply with RCRA corrective action
standards in order to be granted a RCRA permit, and must meet applicable
RCRA land disposal restrictions standards. The UIC permit program is
primarily State-enforced, since EPA has authorized all but a few States to
administer the program.
The SDWA also provides for a Federally-implemented Sole Source Aquifer
program, which prohibits Federal funds from being expended on projects that
may contaminate the sole or principal source of drinking water for a given
area, and for a State-implemented Wellhead Protection program, designed to
protect drinking water wells and drinking water recharge areas.
EPA 's Safe Drinking Water Hotline, at (800) 426-4791, answers questions
and distributes guidance pertaining to SDWA standards. The Hotline
operates from 9:00 a.m. through 5:30 p.m., ET, excluding Federal holidays.
Toxic Substances Control Act
The Toxic Substances Control Act (TSCA) granted EPA authority to create
a regulatory framework to collect data on chemicals in order to evaluate,
assess, mitigate, and control risks which may be posed by their manufacture,
processing, and use. TSCA provides a variety of control methods to prevent
chemicals from posing unreasonable risk.
Sector Notebook Project
89
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
TSCA standards may apply at any point during a chemical's life cycle. Under
TSCA §5, EPA has established an inventory of chemical substances. If a
chemical is not already on the inventory, and has not been excluded by TSCA,
a premanufacture notice (PMN) must be submitted to EPA prior to
manufacture or import. The PMN must identify the chemical and provide
available information on health and environmental effects. If available data
are not sufficient to evaluate the chemicals effects, EPA can impose
restrictions pending the development of information on its health and
environmental effects. EPA can also restrict significant new uses of chemicals
based upon factors such as the projected volume and use of the chemical.
Under TSCA §6, EPA can ban the manufacture or distribution in commerce,
limit the use, require labeling, or place other restrictions on chemicals that
pose unreasonable risks. Among the chemicals EPA regulates under §6
authority are asbestos, chlorofluorocarbons (CFCs), and polychlorinated
biphenyls (PCBs).
Under TSCA §8, EPA requires the producers and importers of chemicals to
report information on chemicals' production, use, exposure, and risks.
Companies producing and importing chemicals can be required to report
unpublished health and safety studies on listed chemicals and to collect and
record any allegations of adverse reactions or any information indicating that
a substance may pose a significant risk to humans or the environment.
EPA 's TSCA Assistance Information Service, at (202) 554-1404, answers
questions and distributes guidance pertaining to Toxic Substances Control
Act standards. The Service operates from 8:30 a.m. through 4:30 p.m., ET,
excluding Federal holidays.
Clean Air Act
The Clean Air Act (CAA) and its amendments, including the Clean Air Act
Amendments (CAAA) of 1990, are designed to "protect and enhance the
nation's air resources so as to promote the public health and welfare and the
productive capacity of the population." The CAA consists of six sections,
known as Titles, which direct EPA to establish national standards for ambient
air quality and for EPA and the States to implement, maintain, and enforce
these standards through a variety of mechanisms. Under the CAAA, many
facilities will be required to obtain permits for the first time. State and local
governments oversee, manage, and enforce many of the requirements of the
CAAA. CAA regulations appear at 40 CFR Parts 50-99.
Pursuant to Title I of the CAA, EPA has established national ambient air
quality standards (NAAQSs) to limit levels of "criteria pollutants," including
carbon monoxide, lead, nitrogen dioxide, particulate matter, volatile organic
compounds (VOCs), ozone, and sulfur dioxide. Geographic areas that meet
Sector Notebook Project
90
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
NAAQSs for a given pollutant are classified as attainment areas; those that do
not meet NAAQSs are classified as non-attainment areas. Under section 110
of the CAA, each State must develop a State Implementation Plan (SIP) to
identify sources of air pollution and to determine what reductions are required
to meet Federal air quality standards. Revised NAAQSs for particulates and
ozone were proposed in 1996 and may go into effect as early as 1997.
Title I also authorizes EPA to establish New Source Performance Standards
(NSPSs), which are nationally uniform emission standards for new stationary
sources falling within particular industrial categories. NSPSs are based on the
pollution control technology available to that category of industrial source.
Under Title I, EPA establishes and enforces National Emission Standards for
Hazardous Air Pollutants (NESHAPs), nationally uniform standards oriented
towards controlling particular hazardous air pollutants (HAPs). Title I,
section 112(c) of the CAA further directed EPA to develop a list of sources
that emit any of 189 HAPs, and to develop regulations for these categories of
sources. To date EPA has listed 174 categories and developed a schedule for
the establishment of emission standards. The emission standards will be
developed for both new and existing sources based on "maximum achievable
control technology" (MACT). The MACT is defined as the control
technology achieving the maximum degree of reduction in the emission of the
HAPs, taking into account cost and other factors. Title I, section 112(r)
directed EPA to develop a list of hazardous chemicals and regulations to
control and prevent accidental releases of these chemicals. Owners and
operators of facilities at which such substances are present in more than a
threshold quantity will have to prepare risk management plans for each
substance used at the facility. EPA may also require annual audits and safety
inspections to prevent leaks and other episodic releases.
Title II of the CAA pertains to mobile sources, such as cars, trucks, buses,
and planes. Reformulated gasoline, automobile pollution control devices, and
vapor recovery nozzles on gas pumps are a few of the mechanisms EPA uses
to regulate mobile air emission sources.
Title IV of the CAA establishes a sulfur dioxide and nitrogen oxides emissions
program designed to reduce the formation of acid rain. Reduction of sulfur
dioxide releases will be obtained by granting to certain sources limited
emissions allowances, which, beginning in 1995, will be set below previous
levels of sulfur dioxide releases.
Title V of the CAA of 1990 created a permit program for all "major sources"
(and certain other sources) regulated under the CAA. One purpose of the
operating permit is to include in a single document all air emissions
requirements that apply to a given facility. States are developing the permit
programs in accordance with guidance and regulations from EPA. Once a
Sector Notebook Project
91
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
State program is approved by EPA, permits will be issued and monitored by
that State.
Title VI of the CAA is intended to protect stratospheric ozone by phasing out
the manufacture of ozone-depleting chemicals and restrict their use and
distribution. Production of Class I substances, including 15 kinds of
chlorofluorocarbons (CFCs) and chloroform, were phased out (except for
essential uses) in 1996.
EPA's Clean Air Technology Center, at (919) 541-0800, provides general
assistance and information on CAA standards. The Stratospheric Ozone
Information Hotline, at (800) 296-1996, provides general information about
regulations promulgated under Title VI of the CAA, and EPA's EPCRA
Hotline, at (800) 535-0202, answers questions about accidental release
prevention under CAA §112(r). In addition, the Clean Air Technology
Center's website includes recent CAA rules, EPA guidance documents, and
updates of EPA activities (www.epa.gov/ttn then select Directory and then
CATC).
Sector Notebook Project
92
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
VLB. Industry Specific Requirements
Resource Conservation and Recovery Act (RCRA)
A material is classified under RCRA as a hazardous waste if the material
meets the definition of solid waste (40 CFR 261.2), and that solid waste
material exhibits one of the characteristics of a hazardous waste (40 CFR
261.20-40) or is specifically listed as a hazardous waste (40 CFR 261.31-33).
A material defined as a hazardous waste may then be subject to Subtitle C
generator (40 CFR 262), transporter (40 CFR 263), and treatment, storage,
and disposal facility (40 CFR 264 and 265) requirements. The shipbuilding
and repair industry must be concerned with the regulations addressing all of
these.
Several common shipyard operations have the potential to generate RCRA
hazardous wastes. Some of these wastes are identified below by process.
Machining and Other Metalworking
Metalworking fluids contaminated with oils, phenols, creosol, alkalies,
phosphorus compounds, and chlorine
Cleaning and Degreasing
Solvents (F001, F002, F003, F004, F005)
Alkaline and Acid Cleaning Solutions (D002)
Cleaning filter sludges with toxic metal concentrations
Metal Plating and Surface Finishing and Preparation
Wastewater treatment sludges from electroplating operations (F006)
Spent cyanide plating bath solutions (F007)
Plating bath residues from the bottom of cyanide plating baths (F008)
Spent stripping and cleaning bath solutions from cyanide plating
operations (F009)
Surface Preparation, Painting and Coating
Paint and paint containers containing paint sludges with solvents or
toxic metals concentrations
Solvents (F002, F003)
Paint chips with toxic metal concentrations
Blasting media contaminated with paint chips
Sector Notebook Project
93
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
Vessel Cleaning
Vessel sludges
Vessel cleaning wastewater
Vessel cleaning wastewater sludges
Fiberglass Reinforced Construction
Solvents (F001, F002, F003, F004, F005)
Chemical additives and catalysts
Shipbuilding and repair facilities may also generate used lubricating oils which
are regulated under RCRA but may or may not be considered a hazardous
waste (40 CFR 266).
United States Code, Title 10, Section 7311
Title 10, Section 7311 of the U.S. Code applies specifically to the handling of
hazardous waste (as defined by RCRA) during the repair and maintenance of
naval vessels. The Code requires the navy to identify the types and amounts
of hazardous wastes that will be generated or removed by a contractor
working on a naval vessel and that the navy compensate the contractor for the
removal, handling, storage, transportation, or disposal of the hazardous
waste. The Code also requires that waste generated solely by the navy and
handled by the contractor bears a generator identification number issued to
the navy; wastes generated and handled solely by the contractor bears a
generator identification number issued to the contractor; and waste generated
by both the navy and the contractor and handled by the contractor bears a
generator identification number issued to the contractor and a generator
identification number issued to the navy.
Clean Air Act
Under Title HI of the 1990 Clean Air Act Amendments (CAAA), EPA is
required to develop national emission standards for 189 hazardous air
pollutants (NESHAP). EPA is developing maximum achievable control
technology (MACT) standards for all new and existing sources. The National
Emission Standards for Shipbuilding and Repair Operations (Surface Coating)
(40 CFR Part 63 Subpart IT) were finalized in 1995 and apply to major source
shipbuilding and ship repairing facilities that carry out surface coating
operations. Shipyards that emit ten or more tons of any one HAP or 25 or
more tons of two or more HAPs combined are subject to the MACT
requirements. The MACT requirements set VOC limits for different types of
marine coatings and performance standards to reduce spills, leaks, and
fugitive emissions. EPA estimates that there are approximately 35 major
source shipyards affected by this regulation. Shipbuilding and repair facilities
Sector Notebook Project
94
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
may also be subject to National Emissions Standards for Asbestos (40 CFR
Part 61 Subpart M). Both NESHAPs require emission limits, work practice
standards, record keeping, and reporting.
Under Title V of the CAAA 1990 (40 CFR Parts 70-72) all of the applicable
requirements of the Amendments are integrated into one federal renewable
operating permit. Facilities defined as "major sources" under the Act must
apply for permits within one year from when EPA approves the state permit
programs. Since most state programs were not approved until after
November 1994, Title V permit applications, for the most part, began to be
due in late 1995. Due dates for filing complete applications vary significantly
from state to state, based on the status of review and approval of the state's
Title V program by EPA.
A facility is designated as a major source for Title V if it releases a certain
amount of any one of the CAAA regulated pollutants (SOX, NOX, CO, VOC,
PM10, hazardous air pollutants, extremely hazardous substances, ozone
depleting substances, and pollutants covered by NSPSs) depending on the
region's air quality category. Title V permits may set limits on the amounts
of pollutant emissions; require emissions monitoring, and record keeping and
reporting. Facilities are required to pay an annual fee based on the magnitude
of the facility's potential emissions. It is estimated that approximately 35
shipyards will be designated as major sources and therefore must apply for a
Title V permit.
Clean Water Act
Shipbuilding and repair facility wastewater released to surface waters is
regulated under the CWA. National Pollutant Discharge Elimination System
(NPDES) permits must be obtained to discharge wastewater into navigable
waters (40 Part 122). Facilities that discharge to a POTW may be required
to meet National Pretreatment Standards for some contaminants. General
pretreatment standards applying to most industries discharging to a POTW
are described in 40 CFR Part 403. In addition, effluent limitation guidelines,
new source performance standards, pretreatment standards for new sources'
and pretreatment standards for existing sources may apply to some
shipbuilding and repair facilities that carryout electroplating or metal finishing
operations. Requirements for the Electroplating Point Source Category and
the Metal Finishing Point Source Category are listed under 40 CFR Part 413
and 40 CFR Part 433, respectively.
Storm water rules require certain facilities with storm water discharge from
any one of 11 categories of industrial activity defined in 40 CFR 122.26 be
subject to the storm water permit application requirements (see Section
VI. A). Many shipbuilding and repair facilities fall within these categories. To
determine whether a particular facility falls within one of these categories, the
Sector Notebook Project 9!November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
regulation should be consulted. Required treatment of storm water flows are
expected to remove a large fraction of both conventional pollutants, such as
suspended solids and biochemical oxygen demand (BOD), as well as toxic
pollutants, such as certain metals and organic compounds.
Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)
The Comprehensive Environmental Response, Compensation, and Liability
Act (CERCLA) and the Superfund Amendments and Reauthorization Act of
1986 (SARA) provide the basic legal framework for the federal "Superfund"
program to clean up abandoned hazardous waste sites (40 CFR Part 305).
Metals and metal compounds often found in shipyards' air emissions, water
discharges, or waste shipments for off-site disposal include chromium,
manganese, aluminum, nickel, copper, zinc, and lead. Metals are frequently
found at CERCLA's problem sites. When Congress ordered EPA and the
Public Health Service's Agency for Toxic Substances and Disease Registry
(ATSDR) to list the hazardous substances most commonly found at problem
sites and that pose the greatest threat to human health, lead, nickel, and
aluminum all made the list.
Sector Notebook Project
96
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
VI.C. Pending and Proposed Regulatory Requirements
Clean Water Act
Effluent limitation guidelines for wastewater discharges from metal products
and machinery (MP&M) industries are being developed. MP&M industries
have been divided into two groups that originally were to be covered under
two separate phases of the rulemaking. Effluent guidelines for Phase I
industries and Phase II industries (which includes the shipbuilding and repair
industry) will now be covered under a single regulation to be proposed in
October 2000 and finalized in December 2002. (Steven Geil, U.S. EPA,
Office of Water, Engineering and Analysis Division, (202) 260-9817, email:
geil. steve@epamail. epa. go v)
Clean Air Act
In August 1996, EPA published Control Technique Guidelines (CTG) for the
control of VOC emissions from surface coating operations in the shipbuilding
and ship repair industry. The CTG was issued to assist states in analyzing and
determining reasonably available control technology (RACT) standards for
major sources of VOCs in the shipbuilding and repair operations located
within ozone NAAQS nonattainment areas. EPA estimates that there are
approximately 100 facilities that will fall within this category in addition to the
approximately 35 major sources identified for the NESHAP MACT standards.
Within one year of the publication of the CTG, states must adopt a RACT
regulation at least as stringent as the limits recommended in the CTG. Under
Section 183(b)(4) of the Clean Air Act, EPA is required to issue the CTG for
the shipbuilding and repair industry based on "best available control
measures" (BACM) for emissions of VOCs and particulates. In developing
the CTG, EPA determined that the MACT standard of the 1995 NESHAP for
Shipbuilding and Repair Operations (Surface Coating) is the only
technologically and economically feasible level of control for these sources.
Therefore, for shipbuilding and repair operations, EPA considers the RACT,
BACM, and MACT standards to be identical. For particulate emissions, EPA
determined the BACM to be no control. (Mohamed Serageldin, U.S. EPA,
Office of Air Quality Planning and Standards, (919) 541-2379)
Sector Notebook Project
97
November 1997
-------
Shipbuilding and Repair Industry
Federal Statutes and Regulations
Page 98 intentionally left blank.
Sector Notebook Project
98
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
VII. COMPLIANCE AND ENFORCEMENT HISTORY
Background
Until recently, EPA has focused much of its attention on measuring
compliance with specific environmental statutes. This approach allows the
Agency to track compliance with the Clean Air Act, the Resource
Conservation and Recovery Act, the Clean Water Act, and other
environmental statutes. Within the last several years, the Agency has begun
to supplement single-media compliance indicators with facility-specific,
multimedia indicators of compliance. In doing so, EPA is in a better position
to track compliance with all statutes at the facility level, and within specific
industrial sectors.
A major step in building the capacity to compile multimedia data for industrial
sectors was the creation of EPA's Integrated Data for Enforcement Analysis
(IDEA) system. IDEA has the capacity to "read into" the Agency's single-
media databases, extract compliance records, and match the records to
individual facilities. The IDEA system can match Air, Water, Waste,
Toxics/Pesticides/EPCRA, TRI, and Enforcement Docket records for a given
facility, and generate a list of historical permit, inspection, and enforcement
activity. IDEA also has the capability to analyze data by geographic area and
corporate holder. As the capacity to generate multimedia compliance data
improves, EPA will make available more in-depth compliance and
enforcement information. Additionally, sector-specific measures of success
for compliance assistance efforts are under development.
Compliance and Enforcement Profile Description
Using inspection, violation and enforcement data from the IDEA system, this
section provides information regarding the historical compliance and
enforcement activity of this sector. In order to mirror the facility universe
reported in the Toxic Chemical Profile, the data reported within this section
consists of records only from the TRI reporting universe. With this decision,
the selection criteria are consistent across sectors with certain exceptions.
For the sectors that do not normally report to the TRI program, data have
been provided from EPA's Facility Indexing System (FINDS) which tracks
facilities in all media databases. Please note, in this section, EPA does not
attempt to define the actual number of facilities that fall within each sector.
Instead, the section portrays the records of a subset of facilities within the
sector that are well defined within EPA databases.
As a check on the relative size of the full sector universe, most notebooks
contain an estimated number of facilities within the sector according to the
Bureau of Census (See Section II). With sectors dominated by small
businesses, such as metal finishers and printers, the reporting universe within
Sector Notebook Project
99
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
the EPA databases may be small in comparison to Census data. However, the
group selected for inclusion in this data analysis section should be consistent
with this sector's general make-up.
Following this introduction is a list defining each data column presented
within this section. These values represent a retrospective summary of
inspections and enforcement actions, and reflect solely EPA, State, and local
compliance assurance activities that have been entered into EPA databases.
To identify any changes in trends, the EPA ran two data queries, one for the
past five calendar years (April 1, 1992 to March 31, 1997) and the other for
the most recent twelve-month period (April 1, 1996 to March 31, 1997). The
five-year analysis gives an average level of activity for that period for
comparison to the more recent activity.
Because most inspections focus on single-media requirements, the data
queries presented in this section are taken from single media databases. These
databases do not provide data on whether inspections are state/local or EP A-
led. However, the table breaking down the universe of violations does give
the reader a crude measurement of the EPA's and states' efforts within each
media program. The presented data illustrate the variations across EPA
Regions for certain sectors.4 This variation may be attributable to state/local
data entry variations, specific geographic concentrations, proximity to
population centers, sensitive ecosystems, highly toxic chemicals used in
production, or historical noncompliance. Hence, the exhibited data do not
rank regional performance or necessarily reflect which regions may have the
most compliance problems.
Compliance and Enforcement Data Definitions
General Definitions
Facility Indexing System (FINDS) this system assigns a common facility
number to EPA single-media permit records. The FINDS identification
number allows EPA to compile and review all permit, compliance,
enforcement and pollutant release data for any given regulated facility.
Integrated Data for Enforcement Analysis (IDEA) is a data integration
system that can retrieve information from the major EPA program office
databases. IDEA uses the FINDS identification number to link separate data
records from EPA's databases. This allows retrieval of records from across
media or statutes for any given facility, thus creating a "master list" of
4 EPA Regions include the following states: I (CT, MA, ME, RI, NH, VT); II (NJ, NY, PR, VI); III (DC, DE, MD, PA,
VA, WV); IV (AL, FL, GA, KY, MS, NC. SC, TN); V (EL, IN, MI, MN, OH, WI); VI (AR, LA, NM, OK, TX); VII
(IA, KS, MO, NE); VHI (CO, MT, ND, SD, UT, WY); IX (AZ, CA, HI, NV, Pacific Trust Territories); X (AK, ID, OR,
WA).
Sector Notebook Project
100
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
records for that facility. Some of the data systems accessible through IDEA
are: AIRS (Air Facility Indexing and Retrieval System, Office of Air and
Radiation), PCS (Permit Compliance System, Office of Water), RCRIS
(Resource Conservation and Recovery Information System, Office of Solid
Waste), NCDB (National Compliance Data Base, Office of Prevention,
Pesticides, and Toxic Substances), CERCLIS (Comprehensive Environmental
and Liability Information System, Superfund), and TRIS (Toxic Release
Inventory System). IDEA also contains information from outside sources
Such as Dun and Bradstreet and the Occupational Safety and Health
Administration (OSHA). Most data queries displayed in notebook sections
IV and VII were conducted using IDEA.
Data Table Column Heading Definitions
Facilities in Search are based on the universe of TRI reporters within the
listed SIC code range. For industries not covered under TRI reporting
requirements (metal mining, nonmetallic mineral mining, electric power
generation, ground transportation, water transportation, and dry cleaning), or
industries in which only a very small fraction of facilities report to TRI (e.g.,
printing), the notebook uses the FINDS universe for executing data queries.
The SIC code range selected for each search is defined by each notebook's
selected SIC code coverage described in Section II.
Facilities Inspected indicates the level of EPA and state agency
inspections for the facilities in this data search. These values show what
percentage of the facility universe is inspected in a one-year or five-year
period.
Number of Inspections ~ measures the total number of inspections
conducted in this sector. An inspection event is counted each time it is
entered into a single media database.
Average Time Between Inspections ~ provides an average length of time,
expressed in months, between compliance inspections at a facility within the
defined universe.
Facilities with One or More Enforcement Actions ~ expresses the number
of facilities that were the subject of at least one enforcement action within the
defined time period. This category is broken down further into federal and
state actions. Data are obtained for administrative, civil/judicial, and criminal
enforcement actions. Administrative actions include Notices of Violation
(NOVs). A facility with multiple enforcement actions is only counted once
in this column, e.g., a facility with 3 enforcement actions counts as 1 facility.
Sector Notebook Project
101
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
Total Enforcement Actions ~ describes the total number of enforcement
actions identified for an industrial sector across all environmental statutes. A
facility with multiple enforcement actions is counted multiple times, e.g., a
facility with 3 enforcement actions counts as 3.
State Lead Actions shows what percentage of the total enforcement
actions are taken by state and local environmental agencies. Varying levels
of use by states of EPA data systems may limit the volume of actions
recorded as state enforcement activity. Some states extensively report
enforcement activities into EPA data systems, while other states may use their
own data systems.
Federal Lead Actions ~ shows what percentage of the total enforcement
actions are taken by the United States Environmental Protection Agency.
This value includes referrals from state agencies. Many of these actions result
from coordinated or joint state/federal efforts.
Enforcement to Inspection Rate is a ratio of enforcement actions to
inspections, and is presented for comparative purposes only. This ratio is a
rough indicator of the relationship between inspections and enforcement. It
relates the number of enforcement actions and the number of inspections that
occurred within the one-year or five-year period. This ratio includes the
inspections and enforcement actions reported under the Clean Water Act
(CWA), the Clean Air Act (CAA) and the Resource Conservation and
Recovery Act (RCRA). Inspections and actions from the TSCA/FIFRA/
EPCRA database are not factored into this ratio because most of the actions
taken under these programs are not the result of facility inspections. Also,
this ratio does not account for enforcement actions arising from non-
inspection compliance monitoring activities (e.g., self-reported water
discharges) that can result in enforcement action within the CAA, CWA, and
RCRA.
Facilities with One or More Violations Identified indicates the
percentage of inspected facilities having a violation identified in one of the
following data categories: In Violation or Significant Violation Status
(CAA); Reportable Noncompliance, Current Year Noncompliance, Significant
Noncompliance (CWA); Noncompliance and Significant Noncompliance
(FIFRA, TSCA, and EPCRA); Unresolved Violation and Unresolved High
Priority Violation (RCRA). The values presented for this column reflect the
extent of noncompliance within the measured time frame, but do not
distinguish between the severity of the noncompliance. Violation status may
be a precursor to an enforcement action, but does not necessarily indicate that
an enforcement action will occur.
Sector Notebook Project
102
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
Media Breakdown of Enforcement Actions and Inspections -- four
columns identify the proportion of total inspections and enforcement actions
within EPA Air, Water, Waste, and TSCA/FIFRA/EPCRA databases. Each
column is a percentage of either the "Total Inspections," or the "Total
Actions" column.
VILA. Shipbuilding and Repair Industry Compliance History
Table 11 provides an overview of the reported compliance and enforcement
data for the shipbuilding and repair industry over the past five years (April
1992 to April 1997). These data are also broken out by EPA Region thereby
permitting geographical comparisons. A few points evident from the data are
listed below.
About half of shipbuilding and repair facility inspections and almost
70 percent of enforcement actions occurred in Regions IV and VI,
where most facilities in the database search (60 percent) were located'
In Region III, a relatively large number of inspections (66) were
carried out in relation to the number of facilities (6) found in this
Region. This is reflected in the relatively low average time between
inspections (5 months). However, the Region had the lowest rate of
enforcement actions to inspections (0.02).
Region X showed three facilities in the database search and only eight
inspections over the past five years, giving the Region the highest
average time between inspections (23 months). However,
enforcement actions were brought against all three facilities in this
time period, resulting in the highest enforcement to inspection rate
(0.38).
Sector Notebook Project
103
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
'l
w S
Ģ*.
P.
Ŗ
a
§ w
3
I'll
tģ
Q.
1!
1|
u Cu
Ŗ.3
I
vo
VO
o\
Sector Notebook Project
104
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
VII.B. Comparison of Enforcement and Compliance Activity Between Selected Industries
Tables 12 and 13 allow the compliance history of the shipbuilding and repair
sector to be compared to the other industries covered by the industry sector
notebook project. Comparisons between Tables 12 and 13 permit the
identification of trends in compliance and enforcement records of the industry
by comparing data covering the last five years (April 1992 to April 1997) to
that of the past year (April 1996 to April 1997). Some points evident from
the data are listed below.
Of the sectors shown, the shipbuilding and repair industry had, by far,
the smallest number of facilities (44) in the database search. (The
facilities presented only include those facilities that report to TRI.)
The shipbuilding and repair industry had one of the highest
enforcement to inspection rates over the past five years (0.13).
However, this rate decreased significantly over the past year (0.08).
Compared to the other sectors shown, the industry was about average
in terms of the percent of facilities with violations (86 percent) and
enforcement actions (14 percent) in the past year, and in the average
time between inspections over the past five years (9 months).
Tables 14 and 15 provide a more in-depth comparison between the
shipbuilding and repair industry and other sectors by breaking out the
compliance and enforcement data by environmental statute. As in the
previous Tables (Tables 12 and 13), the data cover the last five years (Table
14) and the last one year (Table 15) to facilitate the identification of recent
trends. A few points evident from the data are listed below.
Inspections carried out under CAA and RCRA accounted for 81
percent and 89 percent of inspections over the past five years and one
year, respectively. RCRA inspections made up only 14 percent of
inspections in the past five years, but accounted for 25 percent of
enforcement actions.
Over the past year, a larger percentage of inspections were carried out
under CAA (54 percent) compared to the past five years (39 percent).
Meaningful comparisons of enforcement actions taken under each
statute over the past year are not possible since only four enforcement
actions (two under RCRA and two under CWA) were taken in this
period.
Sector Notebook Project
105
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
.S
En
S
a
*o
u
a>
"53
i-
(S
h
5
S
3
u
a
a.
5
o
0
? s c c
S S g a
o c
s
tt*Ģi
Ģ i 1 ^
^" ^
o n
If
zl
Facilities
Inspected
8
Industry Sector
o
a
"a-
o
R
=
S
*
!
s
cs
CO
.Ŗ
]c
J
>
O
l
XŽ
o
s
oo
oo
*
oo
CO
?
vo
c^
tt
]c
o
cs
*?
^
ON
o
CO
§
s?
b
vo"
8
vo
="
loil and Gas Extraction I
o
3
Ģ?
~
ģ
O
S3
VD
CS
oo
cs
1
vo
V
esfl
tc
_c
"c
K
§
O
3
o
0
ON
CO
OO
0
2
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
o
CO
S 3
% I
fS2
||
!i
I
§ g
1H §
si
i
I1
a
I
W
Ŗ
IIs
P
8
s?
gs
ding
at
K .^
'ģ* t^j
II
15
QJ a
p §
S; -g
3-. "g
Sector Notebook Project
107
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
11
H -5
O B.
*
5
3
33!
31
cS
°
--3 S
o 2 S
S3
3
s?
&
1
t
1
a
.3
C
.
5
0
gs
C
5
ing
Sector Notebook Project
108
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
e o.
/a
c/3
1 i
H '§
tM V
O 0,
s
S3
§
H ft
"V
cto
C
ber
Sector Notebook Project
109
November 1997
-------
Shipbuilding and Repair Industry
Compliance and Enforcement History
VTI.C. Review of Major Legal Actions
Major Cases/Supplemental Environmental Projects
This section provides summary information about major cases that have
affected this sector, and a list of Supplemental Environmental Projects
(SEPs).
VELC.l. Review of Major Cases
As indicated in EPA's Enforcement Accomplishments Report, FY1995 and
FY1996 publications, two significant enforcement actions were resolved
between 1995 and 1996 for the shipbuilding industry.
U.S. v. First Marine Shipyard Inc., etal (E.D.NY): On September 30, 1996
the U.S. filed a complaint for CERCLA cost recovery and penalties related
to Region II's cleanup of the barge Nathan Berman. The complaint seeks
recovery of approximately $1,8 million from First Marine Shipyard, Marine
Facilities Inc., Marine Movements, Inc., and Peter Frank and Jane Frank
Kresch individually. It also includes a second cause of action against First
Marine Shipyard for failure to comply with an administrative CERCLA §106
order issued to it in March of 1993.
Cascade General: Cascade General, a ship repair facility in Portland, Oregon,
agreed to a penalty of $78,568 for alleged EPCRA violations. The company
agreed to pay $39,284 in cash and install air filtration dust collector and
solvent recovery systems and to switch to water-based paint to remediate the
balance of the penalty. The SEPs will cost about $117,000 to implement. The
dust collector will improve air quality in the facility by reducing dust in work
areas. The solvent recovery system will reduce by 90% the amount of solvents
discharged to the air by recovering batch solvents for reuse in the facility. For
TRI reporting years 1988-1993, total releases were reported at 253,000
pounds.
VTI.C.2. Supplementary Environmental Projects (SEPs)
Supplemental environmental projects (SEPs) are enforcement options that
require the non-compliant facility to complete specific projects. Information
on SEP cases can be accessed via the internet at EPA's Enviro$en$e website:
http://es.inel.gov/sep.
Sector Notebook Project
110
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
. COMPLIANCE ASSURANCE ACTIVITIES AND INITIATIVES
This section highlights the activities undertaken by this industry sector and
public agencies to voluntarily improve the sector's environmental
performance. These activities include those independently initiated by
industrial trade associations. In this section, the notebook also contains a
listing and description of national and regional trade associations.
Vm.A. Sector-related Environmental Programs and Activities
National Shipbuilding Research Program Panel SP-1
The National Shipbuilding Research Program (NSRP) is a joint
industry/government program aimed at improving the global competitiveness
of American shipyards. NSRP's mission is to assist the shipbuilding and ship
repair industry in achieving and maintaining global competitiveness with
respect to quality, time, cost, and customer satisfaction. The program is also
expected to significantly reduce the costs and delivery times of ships ordered
by the U.S. Navy. NSRP's objectives are reached through individual projects
which form the content of the shipbuilding technology program. Joint
Government and industry meetings are held to identify final project
descriptions. NSRP utilizes a panel structure to develop project proposals
and implement projects. The Panel SP-1 focuses on shipbuilding and repair
facilities and environmental effects.
The mission of Panel SP-1, Facilities and Environmental Effects, is to support
the NSRP by providing leadership and expertise to the shipbuilding and repair
industry, with respect to facilities and environmental issues. The following
goals have been established by SP-1:
increase participation of shipyards and other Maritime Associations
by 100 percent;
improve communication and visibility between NSRP Panels, with the
Executive Control Board, within NSRP participating shipyards and
beyond NSRP;
be proactive in representing industry views regarding regulatory
matters;
identify, develop and implement cost-effective technologies in
facilities and environmental areas;
educate and assist the shipbuilding and repair industry and its
customers in meeting environmental and regulatory requirements; and
Sector Notebook Project
111
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
maintain and continue to improve SP-1 expertise.
Panel SP-1 has a number of active and proposed projects. The following is
a list of active projects:
Environmental Studies and Testing
Environmental Training Modules
Feasibility and Economic Study of the Treatment, Recycling &
Disposal of Spent Abrasives
Solid Waste Segregation & Recycling
Title V Permit for Shipyards Strategy Guide for Development of
Generated Permit
Wastewater Treatment Technology Survey
Impact on Shipyards from the Reauthorization of the Federal Clean
Water Act
Development of Guidance for Selecting Legitimate Recycling
Products and Processes
Developing a Shipyard Program for NPDES Compliance
More information on Panel SP-1 activities can be obtained from the
Environmental Resources and Information Center (ERIC), a division of the
Gulf Coast Region Maritime Technology Center at the University of New
Orleans at (504) 286-6053.
National Defense Center for Environmental Excellence
The National Defense Center for Environmental Excellence (NDCEE) was
established by the Department of Defense to provide the military and private
sector industrial base clients with environmentally compliant technologies.
NDCEE conducts environmental technology research and disseminates
information on environmental technologies and regulations. At the Army's
Armament Research, Development and Engineering Center at Picatinny
Arsenal, NJ, NDCEE has established an industrial-scale facility for the
demonstration of nonpolluting surface coatings. The NDCEE demonstration
facility is used to validate cost, schedules and performance parameters of new
coating technologies. NDCEE also provides assistance in the form of
equipment, site engineers, economic analyses, training, and troubleshooting
for those clients implementing demonstrated coating technologies at their
Sector Notebook Project
112
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
industrial facility. In its powder coating demonstration line, industrial parts
are cleaned, pretreated, sprayed with nonpolluting organic powders, then
cured in a process than nearly eliminates volatile organic compounds and
hazardous wastes. Contact: Dr. Dale A. Denny, Executive Director, NDCEE,
(814)269-2432.
MARITECH
MARITECH is a five-year jointly funded by the Federal Government and
industry and is administered by the Department of Defense's Advanced
Research Projects Agency (ARPA), in collaboration with MARAD.
MARITECH provides matching Government funds to encourage the
shipbuilding industry to direct and lead in the development and application of
advanced technology to improve its competitiveness and to preserve its
industrial base. In the near-term MARITECH aims to assist industry in
penetrating the international marketplace with competitive ship designs,
market strategies, and modern shipbuilding processes and procedures. In the
long-term, the program is meant to encourage advanced ship and shipbuilding
technology projects for promoting continuous product and process
improvement in order to maintain and enlarge the U.S. share of the
commercial and international market. MARITECH funded $30 million in
FY94, $40 million in FY95, $50 million in FY96, and $50 million in FY97 for
vessel design and shipyard technology projects.
Sector Notebook Project
113
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
VIII.B. EPA Voluntary Programs
33/50 Program
The "33/50 Program" is EPA's voluntary program to reduce toxic chemical
releases and transfers of seventeen chemicals from manufacturing facilities.
Participating companies pledge to reduce their toxic chemical releases and
transfers by 33% as of 1992 and by 50% as of 1995 from the 1988 baseline
year. Certificates of Appreciation have been given out to participants meeting
their 1992 goals. The list of chemicals includes seventeen high-use chemicals
reported in the Toxics Release Inventory. Table 16 lists those companies
participating in the 33/50 program that reported the four-digit SIC code 3731
to TRI. Some of the companies shown also listed facilities that are not
building or repairing ships. The number of facilities within each company that
are participating in the 33/50 program and that report the shipbuilding and
repair SIC code is shown. Where available and quantifiable against 1988
releases and transfers, each company's 33/50 goals for 1995 and the actual
total releases and transfers and percent reduction between 1988 and 1994 are
presented. TRI 33/50 data for 1995 was not available at the time of
publication.
Twelve of the seventeen target chemicals were reported to TRI by
shipbuilding and repair facilities in 1994. Of all TRI chemicals released and
transferred by the shipbuilding and repair industry, xylenes (a 33/50 target
chemical), was released and transferred most frequently (32 facilities), and
was the top chemical by volume released and transferred. Toluene, the next
most frequently reported 33/50 chemical, was reported by six facilities. The
remaining 33/50 chemicals were each reported by four or fewer facilities.
Table 16 shows that 7 companies comprised of 15 facilities reporting SIC
3731 are participating in the 33/50 program. For those companies shown
with more than one shipyard, all shipyards may not be participating in 33/50.
The 33/50 goals shown for companies with multiple shipyards are company-
wide, potentially aggregating more than one shipyard and facilities not
carrying out shipbuilding and repair operations. In addition to company-wide
goals, individual facilities within a company may have their own 33/50 goals
or may be specifically listed as not participating in the 33/50 program. Since
the actual percent reductions shown in the last column apply to all of the
companies' shipbuilding and repair facilities and only shipbuilding and repair
facilities, direct comparisons to those company goals incorporating non-
shipbuilding and repair facilities or excluding certain facilities may not be
possible. For information on specific facilities participating in 33/50, contact
David Sarokin (202-260-6907) at the 33/50 Program Office.
Sector Notebook Project
114
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
Table 16: Shipbuilding and Repair Industry Participation in the 33/50 Program
Parent Company
(Headquarters Location)
Avondale Industries Inc.
Avondale, LA
Bethlehem Steel Corp.
Bethlehem, PA
Fulcrum II Limited Partner.
(Bath Iron Works)
New York, NY
General Dynamics Corp.
Falls Church, VA
Tenneco Inc.
(Newport News)
Houston, TX
U.S. Air Force
Washington, DC
Unimar International Inc.
Seattle, WA
TOTAL
Company-
Owned
Shipyards
Reporting 33/50
Chemicals
3
2
4
2
1
1
1
15
Company-
Wide %
Reduction
Goal1
(1988 to 1995)
54
50
24
84
8
***
*
1988 TRI
Releases and
Transfers of
33/50 Chemicals
(pounds)
1,558,614
92,000
116,500
316,777
896,292
0
0
2,980,183
1994 TRI
Releases and
Transfers of
33/50 Chemicals
(pounds)
20,285
129,020
15,331
8,182
268,950
108,835
0
550,603
Actual °/o
Reduction for
Shipyards
(1988-1994)
99
-40
87
97
70
-
-
86
Source: U.S. EPA 33/50 Program Office, 1996.
1 Company- Wide Reduction Goals aggregate all company-owned facilities which may include
facilities not building and repairing ships.
* = Reduction goal not quantifiable against 1988 TRI data.
** = Use reduction goal only.
*** = No numeric reduction goal.
Sector Notebook Project
115
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
Environmental Leadership Program
Project XL
The Environmental Leadership Program (ELP) is a national initiative
developed by EPA that focuses on improving environmental performance,
encouraging voluntary compliance, and building working relationships with
stakeholders. EPA initiated a one year pilot program in 1995 by selecting 12
projects at industrial facilities and federal installations which would
demonstrate the principles of the ELP program. These principles include:
environmental management systems, multimedia compliance assurance, third-
party verification of compliance, public measures of accountability, pollution
prevention, community involvement, and mentor programs. In return for
participating, pilot participants received public recognition and were given a
period of time to correct any violations discovered during these experimental
projects.
EPA is making plans to launch its full-scale Environmental Leadership
Program in 1997. The full-scale program will be facility-based with a 6-year
participation cycle. Facilities that meet certain requirements will be eligible
to participate, such as having a community outreach/employee involvement
programs and an environmental management system (EMS) in place for 2
years. (Contact: http://es.inel.gov/elp or Debby Thomas, ELP Deputy
Director, at 202-564-5041)
Project XL was initiated in March 1995 as a part of President Clinton's
Reinventing Environmental Regulation initiative. The projects seek to
achieve cost effective environmental benefits by providing participants
regulatory flexibility on the condition that they produce greater environmental
benefits. EPA and program participants will negotiate and sign a Final Project
Agreement, detailing specific environmental objectives that the regulated
entity shall satisfy. EPA will provide regulatory flexibility as an incentive for
the participants' superior environmental performance. Participants are
encouraged to seek stakeholder support from local governments, businesses,
and environmental groups. EPA hopes to implement fifty pilot projects in
four categories, including industrial facilities, communities, and government
facilities regulated by EPA. Applications will be accepted on a rolling basis.
For additional information regarding XL projects, including application
procedures and criteria, see the May 23, 1995 Federal Register Notice.
(Contact: Fax-on-Demand Hotline 202-260-8590, Web:
http://www.epa.gov/ProjectXL, or Christopher Knopes at EPA's Office of
Policy, Planning and Evaluation 202-260-9298)
Sector Notebook Project
116
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
Climate Wise Program
Climate Wise is helping US industries turn energy efficiency and pollution
prevention into a corporate asset. Supported by the technical assistance,
financing information and public recognition that Climate Wise offers,
participating companies are developing and launching comprehensive
industrial energy efficiency and pollution prevention action plans that save
money and protect the environment. The nearly 300 Climate Wise companies
expect to save more than $300 million and reduce greenhouse gas emissions
by 18 million metric tons of carbon dioxide equivalent by the year 2000.
Some of the actions companies are undertaking to achieve these results
include: process improvements, boiler and steam system optimization, air
compressor system improvements, fuel switching, and waste heat recovery
measures including cogeneration. Created as part of the President's Climate
Change Action Plan, Climate Wise is jointly operated by the Department of
Energy and EPA. Under the Plan many other programs were also launched
or upgraded including Green Lights, WasteWi$e and DoE's Motor Challenge
Program. Climate Wise provides an umbrella for these programs which
encourage company participation by providing information on the range of
partnership opportunities available. (Contact: Pamela Herman, EPA, 202-
260-4407 or Jan Vernet, DoE, 202-586-4755)
Energy Star Buildings Program
EPA's ENERGY STAR Buildings Program is a voluntary, profit-based program
designed to improve the energy-efficiency in commercial and industrial
buildings. Expanding the successful Green Lights Program, ENERGY STAR
Buildings was launched in 1995. This program relies on a 5-stage strategy
designed to maximize energy savings thereby lowering energy bills, improving
occupant comfort, and preventing pollution Ģ all at the same time. If
implemented in every commercial and industrial building in the United States,
ENERGY STAR Buildings could cut the nation's energy bill by up to $25 billion
and prevent up to 35% of carbon dioxide emissions. (This is equivalent to
taking 60 million cars of the road). ENERGY STAR Buildings participants
include corporations; small and medium sized businesses; local, federal and
state governments; non-profit groups; schools; universities; and health care
facilities. EPA provides technical and non-technical support including
software, workshops, manuals, communication tools, and an information
hotline. EPA's Office of Air and Radiation manages the operation of the
ENERGY STAR Buildings Program. (Contact: Green Light/Energy Star Hotline
at 1-888-STAR-YES or Maria Tikoff Vargas, EPA Program Director at 202-
233-9178 or visit the ENERGY STAR Buildings Program website at
http ://www. epa.gov/appdstar/buildings/)
Sector Notebook Project
117
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
Green Lights Program
EPA's Green Lights program was initiated in 1991 and has the goal of
preventing pollution by encouraging U.S. institutions to use energy-efficient
lighting technologies. The program saves money for businesses and
organizations and creates a cleaner environment by reducing pollutants
released into the atmosphere. The program has over 2,345 participants which
include major corporations, small and medium sized businesses, federal, state
and local governments, non-profit groups, schools, universities, and health
care facilities. Each participant is required to survey their facilities and
upgrade lighting wherever it is profitable. As of March 1997, participants had
lowered their electric bills by $289 million annually. EPA provides technical
assistance to the participants through a decision support software package,
workshops and manuals, and an information hotline. EPA's Office of Air and
Radiation is responsible for operating the Green Lights Program. (Contact:
Green Light/Energy Star Hotline at 1-888-STARYES or Maria Tikoff
Vargar, EPA Program Director, at 202-233-9178 the )
WasteWiSe Program
The WasteWi$e Program was started in 1994 by EPA's Office of Solid Waste
and Emergency Response. The program is aimed at reducing municipal solid
wastes by promoting waste prevention, recycling collection and the
manufacturing and purchase of recycled products. As of 1997, the program
had about 500 companies as members, one third of whom are Fortune 1000
corporations. Members agree to identify and implement actions to reduce
their solid wastes setting waste reduction goals and providing EPA with
yearly progress reports. To member companies, EPA, in turn, provides
technical assistance, publications, networking opportunities, and national and
regional recognition. (Contact: WasteWi$e Hotline at 1-800-372-9473 or
Joanne Oxley, EPA Program Manager, 703-308-0199)
NICE3
The U.S. Department of Energy is administering a grant program called The
National Industrial Competitiveness through Energy, Environment, and
Economics (NICE3). By providing grants of up to 45 percent of the total
project cost, the program encourages industry to reduce industrial waste at
its source and become more energy-efficient and cost-competitive through
waste minimization efforts. Grants are used by industry to design, test, and
demonstrate new processes and/or equipment with the potential to reduce
pollution and increase energy efficiency. The program is open to all
industries; however, priority is given to proposals from participants in the
forest products, chemicals, petroleum refining, steel, aluminum, metal casting
and glass manufacturing sectors. (Contact: http//www. oit.doe.gov/access/
nice3, Chris Sifri, DOE, 303-275-4723 or Eric Hass, DOE, 303-275-4728.)
Sector Notebook Project Hi November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
Design for the Environment (DfE)
DfE is working with several industries to identify cost-effective pollution
prevention strategies that reduce risks to workers and the environment. DfE
helps businesses compare and evaluate the performance, cost, pollution
prevention benefits, and human health and environmental risks associated with
existing and alternative technologies. The goal of these projects is to
encourage businesses to consider and use cleaner products, processes, and
technologies. For more information about the DfE Program, call (202) 260-
1678. To obtain copies of DfE materials or for general information about
DfE, contact EPA's Pollution Prevention Information Clearinghouse at (202)
260-1023 or visit the DfE Website at http://es.inel.gov/dfe.
Sector Notebook Project
119
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
VIH.C. Trade Associations
American Shipbuilding Association
600 Pennsylvania Ave. Suite 305
Washington, DC 20003
Phone: (202)-544-8170
Fax: (202)-544-9618
Members: 6
Contact: Frank Losey
(202)-544-9614
The American Shipbuilding Association (ASA) is a private, non-profit trade
association comprising America's six largest private sector shipyards. The shipyards
are: Avondale Industries, Bath Iron Works, Electric Boat, Ingalls Shipbuilding,
National Steel & Shipbuilding Company, and Newport News Shipbuilding. These six
shipyards employ the large majority of shipbuilding employees in the U.S. More than
98 percent of the Navy's shipbuilding budget is spent on ships constructed in ASA
shipyards. The goals of ASA are to preserve and promote the U.S. naval shipbuilding
industrial base as well as to educate the U.S. public and government to the
importance of shipbuilding to the country. ASA publishes American Shipbuilder
Newsletter monthly.
National Shipyard Association Members: 44 companies
1600 Wilson Blvd. Staff: 6
Arlington, VA 22209
Phone: (703) 351-6734
Fax:(703)351-6736
The National Shipyard Association (NSA) is a national trade association representing
the commercial shipbuilding, repair, and cleaning industry. NSA represents 44
shipyard companies that own and operate over 90 shipyards in 17 states along the
Gulf, Pacific, and Atlantic coasts of the U.S. NSA also has among its membership 16
companies that supply services and products to the shipbuilding and repair industry.
NSA aims to promote high standards of health, safety, and environmental awareness
throughout the industry. NSA publishes a monthly newsletter, NSA Newsline.
Shipyard Association for Members: 67
Environmental Responsibility Staff: 5
Post Office Box 250 Contact: Scott Theriot
Lockport, LA 70374
Phone: (504)-532-7272
Fax: (202)-532-7295
The Shipyard Association for Environmental Responsibility (SAFER) was formed by
67 shipbuilding and repair facilities in the states of Alabama, Louisiana, Mississippi,
and Texas. The goal of SAFER is to work cooperatively with the federal and state
Sector Notebook Project
120
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
agencies to ensure that environmental standards truly reflect the environmental
concerns of the vastly different sizes and capabilities of the Gulf Coast shipyards.
Shipbuilders Council of America
901 No. Washington St. Suite 204
Arlington, VA 22314
Phone: (703) 548-7447
Members: 10
Staff: 10
Contact: Penny Eastman
The Shipbuilders Council of America (SCA) was founded in 1921 and is made up of
companies engaged in the construction and repair of vessels and other marine craft;
manufacturers of all types of propelling machinery, boilers, marine auxiliaries, marine
equipment and supplies; and drydock operators. SCA promotes and maintains sound
private shipbuilding and ship repairing industries and adequate mobilization potential
of shipbuilding and repairing facilities, organizations, and skilled personnel in times
of national emergencies. A newsletter, Shipyard Chronicle, is published weekly.
Sector Notebook Project
121
November 1997
-------
Shipbuilding and Repair
Activities and Initiatives
Page 122 intentionally left blank.
Sector Notebook Project
122
November 1997
-------
Shipbuilding and Repair Industry
Contacts and References
IX. CONTACTS/ACKNOWLEDGMENTS/RESOURCE MATERIALS
For further information on selected topics within the shipbuilding and repair industry a list of contacts
and publications are provided below.
Contacts5
Name
Anthony Raia
Mohamed Serageldin
Steve Guile
Bhaskar Kura
Organization
U.S. EPA - Office of Compliance
U.S. EPA - Office of Air Quality
Planning and Standards
U.S. EPA -Office of Water
University of New Orleans
Telephone
(202) 564-6045
(919)541-2379
(202)260-9817
(504) 280-6572
Subject
Multimedia Compliance
Regulatory Requirements
(Air)
MP&M water regulations
Multimedia pollutant
outputs and pollution
prevention
Section II; Introduction to the Shipbuilding and Repair Industry
U.S. Department of Commerce, International Trade Administration, 1994 U.S. Industrial Outlook,
1995.
U.S. Department of Commerce, Bureau of the Census, 1992 Census of Manufacturers Industry
Series: Ship and Boat Building, Railroad and Miscellaneous Transportation Equipment, 1996.
U.S. Department of Transportation, Maritime Administration, Outlook for the U.S. Shipbuilding and
Repair Industry 1996, April 1996.
U.S. Department of Transportation, Maritime Administration, Report on Survey of U.S. Shipbuilding
and Repair Facilities 1995, December 1995.
ICAF Publications, Shipbuilding Industry Study Report, 1996, http://198.80.36.91/ndu/icaf
/isshp.html, March 1997.
OECD, Overview of the Agreement Respecting Normal Competitive Conditions in the Commercial
Shipbuilding and Repair Industry, http://www.oecd.org/dsti/sid/wp7.html, March 1997.
National Shipbuilding Research Program, Panel SP-4), US Shipbuilding International Market Study
1996-2005, June 1995. SPFA:0001.
5 Many of the contacts listed above have provided valuable information and comments during the development of this
document. EPA appreciates this support and acknowledges that the individuals listed do not necessarily endorse all
statements made within this notebook.
Sector Notebook Project
123
November 1997
-------
Shipbuilding and Repair Industry
Contacts and References
Section HI: Industrial Process Description
Kura, Bhaskur (University of New Orleans) and Lacoste, Steve (Avondale Industries, Avondale, LA),
Typical Waste Streams in a Shipbuilding Facility., 1996.
Storch, R.L., Hammon, C.P., Bunch, H.M., & Moore, R.C., Ship Production, 2nd ed., The Society
of Naval Architects and Marine Engineers, Jersey City, New Jersey, 1995.
Thornton, James R., Ship and Boat Building and Repair, ILO Encyclopaedia of Occupational
Health and Safety 4th ed., International Labour Office, Geneva, Switzerland, 1996.
Development Document for the Proposed Effluent Limitations Guidelines and Standards for the
Metal Products and Machinery Phase 1 Point Source Category, 1995, U.S. EPA, Office of Water,
(EPA-821-R-95-021).
Water Environment Federation, Pretreatment of Industrial Wastes, Manual of Practice No. FD-3,
Alexandria, Virginia, 1994.
National Shipbuilding Research Program, Hazardous Waste Minimization Guide for Shipyards, U.S.
Navy and National Steel and Shipbuilding Company (NASSCO), January 1994.
National Shipbuilding Research Program, Introduction to Production Processes and Facilities in the
Steel Shipbuilding and Repair Industry, U.S. Navy and National Steel and Shipbuilding Company
(NASSCO), February 1993.
Levy, Doug, Boat Paint Tied to Dolphin Deaths, USA Today, December 31, 1996.
Section IV; Chemical Release and Transfer Profile
1994 Toxics Release Inventory Public Data Release, U.S. EPA Office of Pollution Prevention and
Toxics, June 1996. (EPA 745-R-96-002)
Section V: Pollution Prevention Opportunities
National Shipbuilding Research Program, Hazardous Waste Minimization Guide for Shipyards, U. S.
Navy and National Steel and Shipbuilding Company (NASSCO), January 1994.
Guides to Pollution Prevention, The Marine Maintenance and Repair Industry, U.S. EPA, Office
of Research and Development, Cincinnati, OH, October 1991. (EPA/625/7-91/015)
Development Document for the Proposed Effluent Limitations Guidelines and Standards for the
Metal Products and Machinery Phase 1 foint Source Category, 1995, U.S. EPA, Office of Water,
(EPA-821-R-95-021).
Sector Notebook Project
124
November 1997
-------
Shipbuilding and Repair Industry
Contacts and References
Natan, Thomas E., Jr., Examples of Successful Pollution Prevention Programs, from Industrial
Pollution Prevention Handbook, ed. Freeman, Harry M., McGraw-Hill, Inc., New York, 1995. pp.
142-144.
Identification of Pollution for Possible Inclusion in Enforcement Agreements Using Supplemental
Environmental Projects (SEPs) and Injunctive Relief, Final Report, March 1997. U.S. EPA, Office
of Enforcement and Compliance Assurance, (EPA-300-R-97-001).
Section VI: Summary of Applicable Federal Statutes and Regulations
Personal Correspondence -with Mohamed Serageldin, U.S. EPA, Office of Air Quality Planning and
Standards, Research Triangle Park, North Carolina, March 1997.
Personal Correspondence with Steve Guile, U.S. EPA, Office of Water, Engineering and Analysis
Division, Washington, DC, April 1997.
Section VIII: Compliance Activities and Initiatives
National Shipbuilding Research Program, SNAME Panel SP-1 Newsletter, Volume 1, Number 1,
Summer 1996.
Sector Notebook Project
125
November 1997
-------
-------
APPENDIX A
INSTRUCTIONS FOR DOWNLOADING THIS NOTEBOOK
Electronic Access to this Notebook via the World Wide Web (WWW)
This Notebook is available on the Internet through the World Wide Web. The Enviro$en$e
Communications Network is a free, public, interagency-supported system operated by EPA's Office
of Enforcement and Compliance Assurance and the Office of Research and Development. The
Network allows regulators, the regulated community, technical experts, and the general public to
share information regarding: pollution prevention and innovative technologies; environmental
enforcement and compliance assistance; laws, executive orders, regulations, and policies; points of
contact for services and equipment; and other related topics. The Network welcomes receipt of
environmental messages, information, and data from any public or private person or organization.
ACCESS THROUGH THE ENVIROSENSE WORLD WIDE WEB
To access this Notebook through the Enviro$en$e World Wide Web, set your World Wide
Web Browser to the folio whig address:
http://es.epa.gov/comply/sector/index.html
or use
WWW.epa.gOV/OeCa - then select the button labeled Industry and Gov't
Sectors and select the appropriate sector from the
menu. The Notebook will be listed.
Direct technical questions to the Feedback function at the bottom of the web page or to
Shhonn Taylor at (202) 564-2502
Appendix A
-------
------- |