Development of PCSLoads2000 Prepared for:

U. S. Environmental Protection Agency Engineering and Analysis Division Office of Water 1200 Pennsylvania Avenue, NW Washington DC 20460 Prepared by:

Eastern Research Group, Inc. 14555 Avion Parkway Suite 200 Chantilly, VA 20151 August 13, 2003 Addendum Added December 12, 2003 EPA Contract No. 68 C02 095 Work Assignment 0 05 and 1 05 i dwcgi 9574 1072813752 958970000. wpd ACKNOWLEDGMENTS AND DISCLAIMER The Agency would like to acknowledge the contributions of Carey Johnston, EPA/ OW and Steve Rubin, EPA/ OECA to development of this technical document. In addition, EPA acknowledges the contribution of Eastern Research Group.

Neither the United States government nor any of its employees, contractors, subcontractors, or other employees makes any warranty, expressed or implied, or assumes any legal liability or responsibility for any third party's use of, or the results of such use of, any information, apparatus, product, or process discussed in this report, or represents that its use by such a third party would not infringe on privately owned rights. References to proprietary technologies are not intended to be an endorsement by the Agency.

Questions or comments regarding this technical document should be addressed to:

Ms. Lynn Zipf Biologist Engineering and Analysis Division ( 4303T) U. S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Washington, DC 20460 ( 202) 566  1429 zipf. lynn@ epamail. epa. gov ii dwcgi 9574 1072813752 958970000. wpd STATEMENT OF QUALITY EPA has determined that the data summarized in this report are usable for an initial screening level review and prioritization of the toxic weighted pollutant loadings discharged by industrial categories. EPA checked for and corrected apparent errors in PCSLoads2000. However, the PCSLoads2000 database developed from PCS is only one of the tools EPA will use for its initial level of review. Further evaluation of this data in the prioritized categories will occur in a second level of review. The second level of review may include additional data collection and additional verification of data in PCSLoads 2000. iii dwcgi 9574 1072813752 958970000. wpd TABLE OF CONTENTS Page EXECUTIVE SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES 1 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 2.0 OVERVIEW OF DATA SOURCES FOR PCSLOADS2000 . . . . . . . . . . . . . . . . . . . . 2 1 2.1 PCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1 2.1.1 NPDES and How It Relates to PCS . . . . . . . . . . . . . . . . . . . . . 2 1 2.1.2 General Overview of PCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 2.1.3 Selecting Data from PCS to Use in PCSLoads2000 . . . . . . . . . 2 4 2.1.4 Constraints and Limitations of PCS . . . . . . . . . . . . . . . . . . . 2 6 2.2 Effluent Data Statistics System ( EDSS) . . . . . . . . . . . . . . . . . . . . . . . 2 7 2.2.1 EDSS Methodology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 7 2.2.2 EDSS Data Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 9 2.2.3 Constraints and Limitations of EDSS . . . . . . . . . . . . . . . . . . . 2 10 2.3 SIC/ PSC Crosswalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 11 2.4 Assigning TWFs to PCS Reported Discharges . . . . . . . . . . . . . . . . . 2 12 3.0 OVERVIEW OF PCSLOADS2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1 3.1 Methodology Used to Develop PCSLoads2000 . . . . . . . . . . . . . . . . . . 3 2 3.2 Quality Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 4.0 RESULTS OF PCSLOADS2000 DATABASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1 5.0 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Addendum Data Corrections and Revised Results iv dwcgi 9574 1072813752 958970000. wpd LIST OF TABLES Page ES 1 Top 90 Percent Regulated Point Source Categories as Reported in 2000 in PCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES 4 ES 2 Top 90 Percent Industrial Categories* as Reported in 2000 in PCS . . . . . . . . ES 4 2 1 PCS Data Used for PCSLoads2000 Database . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 2 2 Completeness of PCS Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5 2 3 EDSS Data Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 10 4 1A Top 90 Percent Regulated Point Source Categories as Reported in 2000 in PCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1 4 1B Top 90 Percent Industrial Categories* as Reported in 2000 in PCS . . . . . . . . . 4 2 4 2 Discharge ( lbs/ yr) by 4 Digit SIC as Reported in 2000 in PCS . . . . . . . . . . . . 4 3 4 3 Toxic Equivalents ( tox lbs/ yr) by 4 digit SIC as Reported in 2000 in PCS . . . 4 14 4 4A Discharge ( lbs/ yr) by Regulated Point Source Categories as Reported in 2000 in PCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 22 4 4B Discharge ( lbs/ yr) by Industrial Categories as Reported in 2000 in PCS . . . . 4 25 4 5A Toxic Equivalents ( tox lbs/ yr) by Regulated Point Source Categories as Reported in 2000 in PCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 27 4 5B Toxic Equivalents ( tox lbs/ yr) by Industrial Categories as Reported in 2000 in PCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 30 4 6 Facilities Comprising 90% of the Toxic Equivalents ( tox lbs/ yr) as Reported in 2000 in PCS1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 32 4 7 Summary of Pollutants Discharged by the Steam Electric Power Generation Point Source Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 39 4 8 Summary of the Pollutants Discharged by the Pulp, Paper and Paperboard Point Source Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 46 4 9 Summary of the Pollutants Discharged by the Inorganic Chemicals Point Source Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 51 LIST OF TABLES ( Continued)

Page v dwcgi 9574 1072813752 958970000. wpd 4 10 Summary of the Pollutants Discharged by the Organic Chemicals, Plastics, and Synthetic Fibers Point Source Category . . . . . . . . . . . . . . . . . . 4 56 4 11 Summary of the Pollutants Discharged by the Nonferrous Metals Manufacturing Point Source Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 63 4 12 Summary of the Pollutants Discharged by the Phosphate Manufacturing Point Source Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 69 4 13 Summary of the Pollutants Discharged by the Iron and Steel Manufacturing Point Source Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 74 4 14 Summary of the Pollutants Discharged by the Fertilizer Manufacturing Point Source Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 78 LIST OF FIGURES Page 3 1 A Diagram of the " PCSLoads2000" Basic Structure . . . . . . . . . . . . . . . . . . . . 3 2 1Point source category discharges are regulated by Effluent Limitations Guidelines ( ELGs), found at 40 CFR Part 405 to 471.

ES 1 dwcgi 9574 1072813752 958970000. wpd EXECUTIVE SUMMARY The Clean Water Act requires EPA to periodically revise existing effluent limitations guidelines and standards ( ELGs), and promulgate ELGs for new categories of discharges. EPA published a draft National Strategy that sets forth a planning process to review national effluent guidelines and set priorities. EPA identified four major factors, derived from sections 301( b)( 2) and 304( b) of the Clean Water Act ( CWA), that could lead EPA to conclude that a revision of an existing effluent guideline or a promulgation of new guideline would be appropriate: 1) the extent to which the industry category is discharging pollutants that pose a risk to human health or the environment; 2) the identification of an applicable and demonstrated technology, process change, or pollution prevention approach that would substantially reduce the remaining risk; 3) the cost, performance, and affordability of the technology, process change, or pollution prevention approach that would substantially reduce that risk; and 4) implementation and efficiency considerations, such as whether revising a guideline is the most effective approach for reducing the risk. EPA is considering the use of several data sources and tools available to evaluate human health and environmental impacts. One of these data sources is the Permit Compliance System ( PCS), operated by EPA's Office of Enforcement and Compliance Assurance ( OECA). To evaluate the extent that discharges reported in PCS may impact human health or the environment, EPA calculated annual mass discharges and weighted the estimated discharge loads using toxicity factors developed by Office of Water/ Engineering and Analysis Division ( EAD).

EPA used year 2000 data from PCS, along with the Effluent Data Statistics System ( EDSS) program, Standard Industrial Classification ( SIC)/ Point Source Category ( PSC)

Crosswalk, Chemical Abstract Service ( CAS) registry numbers, and EAD's Toxic Weighting Factors ( TWFs), to develop the PCSLoads2000 database to support its analysis for Factor 1.

PCSLoads2000 is a Microsoft Access   database that estimates the pollutant loadings discharged by facilities, industries, and point source categories1. The purpose of this database is to compile the loadings ( both mass based and toxic equivalent) to identify facilities, industries, and point ES 2 dwcgi 9574 1072813752 958970000. wpd source categories that are significant dischargers of pollutants and that may impact human health and the environment. EPA intends to use the results of this database to:

Develop the proposed 2004/ 2005 Biennial 304( m) Plan;

Develop a process to establish priorities for the Effluent Guidelines Program;

Provide an initial screening review of readily available data to determine the quantity of pollutants discharged from facilities, industries, and point source categories; and

Create an initial list of potential industries and categories that warrant further examination.

In addition, PCSLoads2000 can be used to evaluate the pollutant loadings in reported discharges from facilities, industries, and point source categories.

Table ES 1 presents the point source categories that account for the top 90 percent of the total toxic weighted loads, and the loads associated with these point source categories. Table ES 2 presents the industrial categories that are not part of a point source category that are included in the top 90 percent of the total toxic weighted loads from these industrial categories.

Following the initial screening level review of PCS data, EAD conducted additional data quality reviews of reported pollutant discharges for certain top ranking industries and facilities. These reviews identified both misreported and miscalculated data, including:

° Adjustments to SIC codes associated with reported discharges ( affecting the point source category or industry to which the pollutant loads are attributed);

° Revisions to TWFs used for certain TRI chemical categories ( e. g., dioxin, PACs) to better reflect the specific chemicals discharged by a specific industry; ES 3 dwcgi 9574 1072813752 958970000. wpd ° Adjustments to the point source category/ SIC crosswalk to eliminate or minimize double counting of pollutant loads between industry categories; and ° Facility and pollutant specific adjustments to reflect misreported or miscalculated pollutant loadings.

An addendum detailing these data corrections, as well as the revised pollutant loads by point source category and industrial grouping, is included at the end of this report. ES 4 dwcgi 9574 1072813752 958970000. wpd Table ES 1 Top 90 Percent Regulated Point Source Categories as Reported in 2000 in PCS 40 CFR Part Point Source Category Toxic Equivalents ( tox lbs/ yr) Percent of Total Toxic Equivalents Cumulative Percent of Total Toxic Equivalents 430 Pulp, paper, and paperboard 9,406,245 31% 31%

423 Steam electric power generation 8,734,590 29% 60%

414 Organic chemicals, plastics, and synthetic fibers 2,251,012 7% 68%

420 Iron and steel manufacturing 2,051,270 7% 75%

422 Phosphate manufacturing 1,970,639 7% 81%

421 Nonferrous metals manufacturing 1,306,014 4% 85%

415 Inorganic chemicals 1,121,542 4% 89%

418 Fertilizer manufacturing 1,114,181 4% 93%

Table ES 2 Top 90 Percent Industrial Categories* as Reported in 2000 in PCS SIC Category Code SIC Category Name Toxic Equivalents ( tox lbs/ yr) Percent of Total Equivalents Cumulative Percent of Total Toxic Equivalents 4941 Water Supply 611,324 64% 64%

97 National Security & International Affairs 109,122 11% 76%

49 Electric, Gas, & Sanitary Services 91,622 10% 85%

28 Chemical & Allied Products 35,444 4% 89%

99 Non classifiable Establishments 29,591 3% 92%

* Does not include SIC code 4952, Sewerage Systems. Sewage systems are not subject to the CWA § 304( m) effluent guidelines planning process. Rather, they are regulated under CWA Section § 301( b)( 1)( B). 1 1 dwcgi 9574 1072813752 958970000. wpd 1.0 INTRODUCTION The CWA requires EPA to periodically revise existing ELGs, and promulgate ELGs for new point source categories of discharges. EPA published a draft National Strategy that sets forth a planning process to review national effluent guidelines and set priorities. EPA identified four major factors, derived from sections 301( b)( 2) and 304( b) of the CWA, that could lead EPA to conclude that a revision of an existing effluent guideline or a promulgation of new guideline would be appropriate: 1) the extent to which the industry category is discharging pollutants that pose a risk to human health or the environment; 2) the identification of an applicable and demonstrated technology, process change, or pollution prevention approach that would substantially reduce the remaining risk; 3) the cost, performance, and affordability of the technology, process change, or pollution prevention approach that would substantially reduce that risk; and 4) implementation and efficiency considerations, such as whether revising a guideline is the most effective approach for reducing the risk. The Strategy describes how EPA intends to evaluate readily available information, solicit input from stakeholders, gather additional information, evaluate whether effluent guidelines are the most efficient approach to achieving environmental improvements, and present results to the public.

Factor 1 evaluates the extent to which the pollutants discharged by industry categories pose adverse impacts, and more specifically, potential risk to human health or the environment. In this evaluation, EPA expects to consider the total amount of pollutants discharged by the industrial category, the toxicity of that discharge, the fate and transport of those pollutants, and the number of potentially exposed individuals. EPA is considering the use of several data sources and tools available to evaluate human health and environmental impacts, as discussed in the report entitled, " Factor 1 Analysis: Human Health and Environmental Impacts,"

dated December 2003. One of these data sources is the Permit Compliance System ( PCS). EPA used PCS, along with data from several other sources, including the Standard Industrial Classification ( SIC)/ Point Source Category ( PSC) Crosswalk, Chemical Abstract Service ( CAS)

registry numbers, and EAD's Toxic Weighting Factors ( TWFs) to develop the PCSLoads2000 database tool for Factor 1 analyses. 1 2 dwcgi 9574 1072813752 958970000. wpd This report discusses how PCSLoads2000 was created and presents the output for all facilities classified as major dischargers in PCS for the year 2000 and for the industries ( as identified by the four digit SIC code) and point source categories that these facilities represent.

The remainder of this report is organized in the following sections:

Section 2.0 presents an overview of the data sources used to develop PCSLoads2000;

Section 3.0 discusses the development of PCSLoads2000;

Section 4.0 presents the results of PCSLoads2000; and

Section 5.0 discusses items for further consideration.

Throughout the review of PCS data, EPA identified and corrected misreported or miscalculated data. A summary of these data changes can be found in the addendum to this report. EPA does not believe that all errors have been corrected at this time. Additional corrections will be added to the addendum as they occur. 2To access PCS on EPA's mainframe online, the user must obtain a user ID and password from EPA. For more information, see the Permit Compliance System Basic Training Manual.

2 1 dwcgi 9574 1072813752 958970000. wpd 2.0 OVERVIEW OF DATA SOURCES FOR PCSLOADS2000 This section discusses the following tools and data sources that EPA used to develop PCSLoads2000:

Section 2.1  Permit Compliance System ( PCS);

Section 2.2  Effluent Data Statistics System ( EDSS);

Section 2.3  SIC/ PSC Crosswalk; and

Section 2.4  CAS Numbers and TWFs.

2.1 PCS PCS is the major source of data for the PCSLoads2000 database. PCS is a computerized management information system maintained by EPA's Office of Enforcement and Compliance Assurance ( OECA) 2. It was created to track permit, compliance, and enforcement status of facilities regulated by the National Pollutant Discharge Elimination System ( NPDES)

program under the Clean Water Act ( CWA). Section 2.1 discusses:

Section 2.1.1  NPDES and How It Relates to PCS;

Section 2.1.2  A General Overview of PCS;

Section 2.1.3  PCS Data Structure; and

Section 2.1.4  Constraints and Limitations of PCS.

2.1.1 NPDES and How It Relates to PCS As authorized by the CWA, the NPDES permit program controls water pollution by regulating point sources that discharge pollutants directly into waters of the United States.

Specifically, Title IV, Permits and Licenses, of the Federal Water Pollution Control Act ( FWPCA)

created the system for permitting wastewater discharges ( Section 402), known as NPDES. The Water Permits Division ( WPD) within EPA's Office of Wastewater Management ( OWM) leads 3Of the data for major dischargers contained in PCS, there are data for a total of 111 indirect " pretreater" permits from the states of Arizona and California ( and no other states). In comparison, PCS contains data for 6,478 standard permits.

2 2 dwcgi 9574 1072813752 958970000. wpd and manages the NPDES permit program in partnership with EPA Regional Offices, states, tribes,

and other stakeholders. Industrial, municipal, and other facilities must obtain NPDES permits if their discharges go directly to surface waters. In most cases, the NPDES permit program is administered by authorized states.

NPDES permits provide two levels of control: technology based limits ( based on the ability of dischargers in the same industrial category to treat wastewater) and water qualitybased limits ( if technology based limits are not sufficient to provide protection of the water body).

NPDES permits are issued only to direct point source dischargers ( i. e., discharges directly into the receiving water body); therefore, PCS only reports data for direct dischargers and reports a very small amount of data for facilities ( known as indirect dischargers) 3 that discharge to a separate wastewater treatment plant. A permit is typically a license for a facility to discharge a specified amount of a pollutant into a receiving water under certain conditions.

Facility permits are developed by the permitting authority for each pipe outfall ( facilities may have multiple outfalls) based on the information contained in the permit application.

The permitting authority develops effluent limits based on point source category ELGs and the needs of the receiving stream. Additionally, the permitting authority can vary the effluent limits by season to respond to seasonal variations in water quality. After the effluent limits are developed, the permit writer develops monitoring requirements for each pollutant. Monitoring frequencies may vary depending on the requirements of the permitting authority. It is the facility's responsibility to monitor their discharge as outlined in the permit.

More than 65,000 industrial facilities and water treatment plants have obtained permits for water discharges of regulated pollutants. To provide an initial framework for setting permit issuance priorities, EPA developed a major/ minor classification system for industrial and municipal wastewater discharges. Major discharges almost always have the capability to impact receiving waters if not controlled and, therefore, have been accorded more regulatory attention 2 3 dwcgi 9574 1072813752 958970000. wpd than minor discharges. There are approximately 6,400 facilities ( including sewerage systems)

with major discharges for which PCS has extensive records. Discharges are classified as major based on an assessment of six characteristics: ( 1) toxic pollutant potential; ( 2) flow/ stream flow volume; ( 3) conventional pollutant loading; ( 4) public health impact; ( 5) water quality factors; and ( 6) proximity to near coastal waters. Facilities with major discharges must report compliance with NPDES permit limits via monthly Discharge Monitoring Reports ( DMRs) submitted to the permitting authority. The permitting authority enters the reported DMR data into PCS, including the type of violation ( if any), concentration and quantity values, and the Quarterly Non

Compliance Report ( QNCR) indicators. Minor discharges may, or may not, adversely impact receiving water if not controlled. Therefore, EPA does not require DMRs for facilities with minor discharges. For this reason, the database includes data only for a limited set of minor dischargers when the states choose to include these data. As a consequence, extensive data are not available for minor discharges in PCS.

2.1.2 General Overview of PCS PCS, operated by OECA, was developed in 1974. PCS automates entry, updating,

and retrieval of NPDES data and tracks permit issuance, permit limits and monitoring data, and other data pertaining to facilities regulated under NPDES. Major dischargers are required to submit effluent monitoring data to the permitting authority on the DMR forms. These data are then entered into PCS by the permitting agency and evaluated for compliance with the NPDES permit requirements.

PCS contains information that is required by the NPDES permit program. For example, PCS records information for monitored parameters required in the NPDES permit.

Parameters in PCS include water quality parameters ( e. g., dissolved oxygen and temperature);

specific chemicals ( e. g., phenol); bulk parameters ( e. g., biological oxygen demand); and flow.

PCS only contains data for parameters limited in the facility's NPDES permit, although other pollutants may be discharged. PCS contains information for facilities with any SIC code. The SIC code numbering system identifies establishments by the type of activity in which they are engaged. 2 4 dwcgi 9574 1072813752 958970000. wpd 2.1.3 Selecting Data from PCS to Use in PCSLoads2000 For the PCSLoads2000 database, EPA only used data for major facilities ( i. e.,

excluded data for minors and indirects).

EPA selected permit facility data, parameter limits data, and measurement/

violation data from PCS to develop PCSLoads2000. See the PCS Data Element Dictionary ( US EPA 2001c) for information about the data types contained in PCS. To access the data in PCS, a four character acronym is required. Table 2 1 presents the PCS variables or field names, data element name, and definition for all data that were used for the PCSLoads2000 database.

Table 2 1 PCS Data Used for PCSLoads2000 Database PCS Acronym ( Field Name) Data Element Name Definition NPID NPDES Number A nine character code used to uniquely identify a NPDES facility.

FNML Facility Name The official or legal name used to distinguish it from similar entities, if any, in the same geographical area. It is generally the name appearing on the NPDES application form.

MADI Major Discharge Indicator A one character code designating that the facility has been identified as a major or a minor discharger.

SIC2 SIC Code The four digit code for the principal activity causing the discharge at the facility as defined by the 1987 Standard Classification ( SIC) Manual.

CSDN Consolidated System Facility Identifier The first twelve characters of the Consolidated System Facility Identifier ( CSID). CSID is the consolidated EPA identification, which includes state code, Dun and Bradstreet Number, and NEEDS suffix.

FHBC Facility USGS Hydrologic Basin Code A code assigned by the United States Geological Survey ( USGS) to identify drainage water basins for facilities by their geographical location.

RWAT Receiving Waters The name of the river, stream, tributary, lake, or other body of water into which the effluent is discharged.

CYNM City The name of the city where the facility is located. Each city name is defined with its corresponding city code in the system's city state table. Table 2 1 ( Continued)

PCS Acronym ( Field Name) Data Element Name Definition 2 5 dwcgi 9574 1072813752 958970000. wpd FLAT Facility Latitude Coordinates describing geographical location of a facility.

FLON Facility Longitude Coordinates describing geographical location of a facility.

FLLC Facility Latitude/ Longitude Code of Accuracy Code describing the technical accuracy of latitude and longitude data.

PCS data are entered from data submitted by the facility. In some cases, data fields are not required and/ or the facility does not provide all the data; therefore, the data provided by PCS for each facility may not be complete. Table 2 2 provides information about the completeness of the data extracted from PCS for PCSLoads2000.

Table 2 2 Completeness of PCS Data Data Type Number of Facilities Reporting Data Type Reporting Major Facilities 6,478 Major Facilities Reporting SIC Codes 6,474 Major Facilities Reporting An Unidentified SIC Code 1 Major Facilities Reporting NPDES Permit Number 6,478 Major Facilities Reporting Facility Name and Address 6,478 Major Facilities Reporting Flow 6,157 Major Facilities Reporting Receiving Stream Name 6,187 Parameters Reported in PCS by Major Facilities 829 Number of These Parameters Assigned TWFs* 472 Major Facilities Reporting Zero Discharge for At Least One Parameter 4,122 Major Facilities Reporting Zero Discharge for All Parameters 264 * TWFs are discussed in Section 2.4. 2 6 dwcgi 9574 1072813752 958970000. wpd 2.1.4 Constraints and Limitations of PCS PCS provides comprehensive data for major direct discharging facilities.

However, EPA identified the following constraints and limitations to using PCS for the analysis described in this document:

Data entered into PCS undergo limited QA/ QC screening prior to their addition. In addition, data are entered into PCS manually and therefore errors in the data entry can occur.

In general, only major facilities that directly discharge to navigable water and have a NPDES permit are captured by PCS. Thus, because some facilities are not included in PCS, it does not provide a comprehensive view of all pollutant discharges to the Nation's waters. However, the majority of the discharges are included in PCS.

PCS reports the primary SIC code that represents the principal activity causing the facility's discharge. Other activities may be ongoing at the facility that would not be reflected in PCS.

PCS is designed as a permit tracking system and therefore does not contain production information.

PCS only contains data for parameters a facility is required by permit to monitor. Therefore, the facility is not required to monitor or report all pollutants actually discharged.

PCS may have incomplete data for a facility.

Missing data elements in PCS have an impact on the analysis in this report, when one of the following is true:

There are no corresponding units for the pollutant concentration and/ or quantity data;

There is no reported flow rate to associate with a pollutant concentration ( or vice versa), and the pollutant quantity is not reported; and

There is no pollutant parameter associated with the pollutant concentration and/ or quantity data. 2 7 dwcgi 9574 1072813752 958970000. wpd Despite the limitations and constraints of data in PCS, EPA has determined that the data are appropriate for an initial screening level review and prioritization of the pollutant loadings discharged by industrial categories. Further evaluation of the prioritized categories will occur in a second level of review. The second level of review may include additional data collection and additional verification of data reported in PCS.

2.2 Effluent Data Statistics System ( EDSS)

Because units of measure vary widely in PCS, EPA developed EDSS to estimate mass loadings based on data stored in PCS. EDSS uses existing PCS reported mass loading values or multiplies reported discharge flows and effluent concentrations to estimate loadings for each outfall ( discharge pipe), taking into account the various units of concentration and flow rates. For the analysis in this report, the EDSS was used to provide annual pollutant mass discharges For more information on how the EDSS program works, see " Guidance and Standards for Calculating Point Source Loads Using the Permit Compliance System ( PCS), Point Source Load Reductions as an Indicator of Water Quality Improvements" ( US EPA 1997). See Chapter 7 of the " Permit Compliance System Generalized Retrieval Training Manual" ( US EPA 2001d) for more information regarding accessing EDSS. The remainder of Section 2.2 discusses:

Section 2.2.1  EDSS Methodology;

Section 2.2.2  EDSS Data Outputs; and

Section 2.2.3  Constraints and Limitations of EDSS.

2.2.1 EDSS Methodology EDSS only selects standard permits when calculating the loadings. EDSS does not use data from general, stormwater, AFO/ CAFO, or pretreatment permits. In addition, EDSS is programmed to make certain assumptions when using PCS data and in its calculations. Before being processed by the EDSS routines, the data are screened. Since internal monitoring ( i. e.,

monitoring at in plant locations as opposed to pipe outfalls that discharge directly to the receiving 2 8 dwcgi 9574 1072813752 958970000. wpd stream) may be required in the NPDES permit, EDSS uses only DMR data for discharge points that discharge directly into the receiving stream.

EDSS also determines which concentration, loading, and flow data should be used for the loadings. If a facility reports mass loads, EDSS determines which mass quantity field is defined as average. If the average field contains non zero data, the data are used to calculate the total mass load. If a facility does not report mass loads, the EDSS program will calculate a mass loading by using reported concentration and flow data. If the average field does not contain data,

EDSS searches for the first measurement field with data based upon a hierarchical lookup.

Finally, if EDSS cannot calculate loadings based upon average concentration and flow because of insufficient data, EDSS tests the non average or alternate quantity field for data before assuming zero for that reporting period. If average values are not reported, EDSS uses the other data available ( e. g., the reported daily maximum) to calculate a discharge load.

The EDSS program also provides estimates for any missing data, based on existing data. For example, EDSS estimated discharge for a facility missing a month of discharge data based on data from other months.

For parameters with detection limits, permittees have the option of reporting the detection limit and that the measured concentration fell below this detection limit ( BDL). BDL means that the actual concentration is between zero and the detection limit. Therefore, the EDSS user may choose from the following options to estimate loadings:

BDL is set equal to zero;

BDL is set to the detection limit; and

BDL is set equal to half the detection limit.

EPA's use of the BDL options is discussed in Section 3.1.

Additionally, EDSS was used to group parameters that represent the same pollutant to avoid double counting the mass of a pollutant that is measured in more than one way at a facility. For example, a facility may report both total lead and dissolved lead. Because total 2 9 dwcgi 9574 1072813752 958970000. wpd lead includes dissolved lead, adding the two measurements together overestimates the mass of lead discharged from the facility. The EDSS grouping option uses a hierarchy to determine how to estimate loads when a facility reports discharges for multiple pollutants within the same group.

The hierarchy is based upon which parameter code will provide the most reliable load estimate.

The result is that one load value is calculated and reported by EDSS for the parameter. For example, the pollutant copper has six parameter codes: ( 1) dissolved copper, ( 2) suspended copper, ( 3) total copper, ( 4) total recoverable copper, ( 5) copper, and ( 6) potentially dissolved copper. The " grouping" hierarchy for copper is as follows:

The data for total copper has precedence over the data for copper;

The data for copper has precedence over the data for total recoverable copper;

The data for total recoverable copper has precedence over the data for potentially dissolved copper;

The data for potentially dissolved copper has precedence over the data for either dissolved copper or suspended copper; and

The data for dissolved copper and suspended copper are added to give total copper.

2.2.2 EDSS Data Outputs The EDSS program generates three data files for each state, one for each of the BDL options. A separate program is then run on these files to create a consolidated file of nationwide facility level data. The fields included in the final output file are listed in Table 2 3. 2 10 dwcgi 9574 1072813752 958970000. wpd Table 2 3 EDSS Data Output Field Description Year Year selected by user NPID Unique facility ID DSCH Discharge designation MLOC Monitoring location PRAM Parameter KGY0 Calculated Loadings 2.2.3 Constraints and Limitations of EDSS EDSS has some constraints and limitations. EDSS cannot estimate loadings for all facilities and parameters because some data are not available or suitable. Therefore, the pollutant loading estimates generated by EDSS may underestimate the actual total pollutant loadings from all facilities nationwide.

Loadings are based on outfalls at a facility. A facility may have numerous monitoring points along an outfall route, where the same chemical might be monitored more than once. Double counting may occur in summarizing data for a facility and the total pounds of chemical discharged at a facility may be overestimated.

EDSS processes concentration and quantity measurements reported in PCS as BDL as equal to zero, half of the detection limit, or equal to the detection limit. Depending on the option chosen, EDSS may overestimate or underestimate the total pollutant loadings. The PCSLoads2000 database did account for this limitation ( see Section 3.1).

Even though EDSS has these limitations, EPA determined that the estimated loadings generated by EDSS were appropriate to use for the PCSLoads2000 database because the 2 11 dwcgi 9574 1072813752 958970000. wpd purpose of the database is to provide an initial screening level review of facilities. Further evaluation will occur after the initial screening is completed.

2.3 SIC/ PSC Crosswalk EPA's effluent limitations guidelines and pretreatment standards are developed for specific categories of industrial dischargers. EPA has developed guidelines and standards for 56 point source categories. The categories, which may be divided into subcategories, are generally defined in terms of combinations of products made and the processes used to make these products. Facilities with data in PCS are identified by SIC code. Thus, in order to use the PCS data to estimate the pollutants discharged by each point source category, EPA linked each 4 digit SIC code to an appropriate point source category. However, there were some SIC codes that did not have an applicable point source category. EPA grouped these SIC codes by the first two digits. For example, SIC 8221 ( colleges and universities) and SIC 8299 ( schools and educational services) were grouped as 82, educational services.

Some SIC codes fall in more than one point source category. In these cases, the pollutant loadings are either distributed among applicable point source categories or counted in each point source category in which they are regulated, depending on the specific SIC code. The majority of overlapping SIC codes among point source categories occurs between the Metal Products and Machinery ( MP& M, 40 CFR Part 438) and Metal Finishing ( 40 CFR Part 433)

point source categories. EPA determined it would be inappropriate to double count pollutant loadings for these point source categories because the final MP& M rule at § 438.1( b) specifically excludes both metal bearing wastewaters and wastewaters subject to other effluent guidelines ( e. g., Metal Finishing). To more accurately represent the applicability of these two point source categories in the PCSLoads2000 database, EPA developed a methodology to distribute the pollutant loadings by allocating only organic chemical releases to the MP& M point source category and all other releases to the Metal Finishing point source category. Although EPA believes this simplified methodology reasonably distributes releases, EPA acknowledges that the MP& M allocation is somewhat overestimated at the expense of the Metal Finishing allocation 2 12 dwcgi 9574 1072813752 958970000. wpd because commingled metal bearing and organic bearing wastewaters are regulated only under Metal Finishing.

For SIC codes that overlap point source categories other than MP& M and Metal Finishing, pollutant loadings are counted in each point source category in which they are regulated. For example, the loadings for SIC code 2874 ( phosphate fertilizers) were used in PCS for two point source categories: Phosphate Manufacturing and Fertilizer Manufacturing.

Similarly, the loadings for SIC code 2819 ( industrial inorganic chemicals) were used in PCS for three point source categories: Inorganic Chemicals, Phosphate Manufacturing, and Nonferrous Metals Forming. See the PCSLoads2000 database for a table presenting the SIC/ PSC Crosswalk.

2.4 Assigning TWFs to PCS Reported Discharges In order to estimate potential impacts on human health and the environment, EPA estimates toxic equivalent mass discharge through the use of toxic weighting factors ( TWFs).

EAD has used TWFs in its effluent limitations guidelines development program. EPA maintains a Toxics Data Base containing aquatic life and human health toxicity data, as well as physical/ chemical property data, for more than 1,900 pollutants compiled from over 100 references. Chemical specific information needed to generate TWFs include aquatic life criteria or toxic effect data for native aquatic species, human health reference doses ( RfDs), and cancer potency slope factors ( SFs). In developing a TWF, a value for aquatic life effects and a value for human health effects are added. The calculation is performed by dividing aquatic life and human health criteria ( or toxic effect levels) for each pollutant, expressed as a concentration in micrograms per liter ( µ g/ L), into the former copper criterion of 5.6 µ g/ L:

TWF

5.6 AQ  5.6 HHOO where:

TWF = toxic weighting factor AQ = chronic aquatic life value ( µ g/ L) HHOO = human health ( ingesting contaminated organisms only) value ( µ g/ L). 2 13 dwcgi 9574 1072813752 958970000. wpd For more details on how EAD determines TWFs, see see Toxic and Pollutant Weighting Factors of the Final Effluent Limitations Guidelines and Standards for Iron and Steel Industry, Final Report April 30, 2002.

Chemicals for which EAD has developed TWFs are identified by the Chemical Abstract Services ( CAS) number. For the purpose of assigning TWFs to reported discharges,

EPA used a file named " SUPERCAS"( developed in earlier work with PCS and TRI data) to identify CAS numbers for chemicals reported in PCS. For the current effort, EPA expanded the SUPERCAS list of chemicals by identifying CAS numbers for priority pollutants and chemicals that appear in the top 75th percentile of the number of times reported. The CAS numbers were obtained from www. ChemFinder. com. The following assumptions were made to assign CAS numbers:

All forms of the chemical were assigned the same CAS number ( e. g., Nitrogen organic, Nitrogen inorganic, and Nitrogen total were all assigned the CAS number for Nitrogen);

Chemicals that were reported in different ways were assigned only one CAS number ( e. g., Nitrate ( as NO 3) and Nitrate ( as N) were both assigned the CAS number for Nitrate); and

All forms of the parameter are classified as a priority pollutant ( e. g., cyanide, free not amenable to chlorine; Cyanide, free water plus wastewaters; Cyanide, Total ( as CN); Cyanide, total recoverable; Cyanide, weak acid, dissociable; Cyanide, dissolved STD method; and Cyanide, free ( amenable to chlorination) are all classified as priority pollutants.

Once the CAS numbers were assigned to each PCS parameter using the expanded SUPERCAS file, the TWFs were assigned by matching the CAS numbers. EPA estimated TWFs for some parameters reported in PCS. For example, a TWF was calculated for the parameter " aldrin plus diedrin" by averaging the TWF for the two individual compounds. These TWFs were assigned a new CAS number to represent the group of compounds. See EAD Toxics Database developed by VERSAR, version developed in 2001 for more information regarding the assumptions made in assigning TWFs. 2 14 dwcgi 9574 1072813752 958970000. wpd EPA did not assign TWFs to all parameters reported in PCS. As noted above,

EPA did not identify CAS numbers for chemicals infrequently reported. In addition, there are no CAS numbers for some parameters reported in PCS because the parameters are bulk parameters rather than specific chemical compounds. To facilitate analysis of PCS data, EPA grouped these parameters by parameter type ( e. g., E. coli, streptococci, and fecal coliform were all assigned to the " biological" parameter type). The type of identifications are stored in the table identified as SUPERCAS. Type categories are:

Biological;

Biological Oxygen Demand;

Chemical Oxygen Demand;

Dissolved Oxygen;

Flow;

Hydrocarbons;

Oil and Grease;

pH;

Priority Pollutants;

Solids; and

Total Suspended Solids. 3 1 dwcgi 9574 1072813752 958970000. wpd 3.0 OVERVIEW OF PCSLOADS2000 PCSLoads2000 is a Microsoft Access database developed for the Factor 1 analysis to presents the estimated annual pollutant loadings discharged by facilities, industries, and point source categories. The purpose of this database is to compile the loadings ( both mass based and toxic equivalent) to identify facilities, industries, and point source categories that are significant dischargers of pollutants and that may impact human health and the environment. EPA intends to use the results of this database to:

Develop the proposed 2004/ 2005 Biennial 304( m) Plan;

Develop a process to establish priorities for the Effluent Limitations Guidelines Program;

Provide an initial screening review of readily available data to determine the quantity of pollutants discharged from facilities, industries, and point source categories; and

Create an initial list of potential industries and categories that warrant further examination.

In addition, PCSLoads2000 can be used to evaluate the pollutant loadings in reported discharges from facilities, industries, and point source categories. Section 3.0 discusses the following topics regarding the PCSLoads2000 database:

Section 3.1  Methodology Used to Develop PCSLoads2000; and

Section 3.2  Quality Review. 3 2 dwcgi 9574 1072813752 958970000. wpd PCS 2000  EDSS Output PCS Facility Data SIC/ PSC Crosswalk Year NPID SIC Code NPID Facility Name SIC Description Discharge Number Major Discharge Indicator Point Source 1 Monitoring Location SIC Code Point Source 2 Parameter Code Consolidated System Facility Identifier Point Source 3 Kg/ Year Facility USGS Hydrologic Basin Code Point Source 4 Receiving Waters City Facility Latitude Facility Longitude Facility Latitude/ Longitude Code of Accuracy SUPERCAS TWF Requests Parameter Code TRI Match CAS CAS Parameter Name Parameter Name Parameter Type TWF Figure 3 1. A Diagram of the " PCSLoads2000" Basic Structure 3.1 Methodology Used to Develop PCSLoads2000 Figure 3 1 presents the PCSLoads2000 database structure, including the fields used from each data source. The PCSLoads2000 database was created using the data sources described in Section 2.0. The following steps were used to develop the database:

( 1) EPA downloaded the selected facility information from PCS ( this became the table identified as " PCS facility data" in Figure 3 1);

( 2) EPA executed the EDSS program, using PCS Year 2000 data, to calculate the annual mass based pollutant loadings for all major facilities ( this became the table identified as " PCS2000 EDSS output" in Figure 3 1);

( 3) The primary SIC codes reported in PCS were associated with the appropriate point source categories using the table identified in Figure 3 1 as " SIC/ PSC Crosswalk"; and ( 4) The TWFs were associated with each parameter reported in PCS using the tables identified as " SUPERCAS" and " TWF Requests" in Figure 3 1. 3 3 dwcgi 9574 1072813752 958970000. wpd As discussed in Section 2.2, EDSS provides outputs that use different assumptions for concentrations reported as below detection limit ( BDL): BDL is set equal to zero, BDL is set to the detection limit, or BDL is set equal to half the detection limit. For PCSLoads2000, EPA developed a hybrid approach where BDL was set equal to zero for parameters never detected by the facility in 2000. For parameters sometimes detected and sometimes not, BDL was set equal to half of the detection limit.

EPA chose this approach after examining EDSS results calculated with BDL set equal to half the detection limit. This approach resulted in relatively high calculated mass loads for some parameters reported with a wide range in detection limits ( e. g., PCBs and dioxins). The high mass loads reflected high reported detection limits for discharges in which the parameters were never detected possibly as a result of relatively insensitive laboratory analyses. By assuming a value of zero, the pollutant discharges are likely to be underestimates because facilities generally monitor for only those pollutants likely to be generated by their industrial processes.

For parameters sometimes detected and sometimes not, BDL was set equal to half of the detection limit. EPA considered half the detection limit a reasonable estimate of the unknown concentration for an initial screening level review and prioritization of the toxicweighted pollutant loadings discharged by industrial categories.

3.2 Quality Review EPA reviewed the output from PCSLoads2000 for accuracy, completeness, and correctness. This review was conducted in stages as the database was developed.

Completeness checks: EPA verified that the number of facility records in the PCS Facility Data table equaled the number of facility records in the PCS 2000 table ( EDSS Output).

As reported in Table 2 2, EPA also checked the completeness of facility information from PCS.

EPA considered the information available for major dischargers to be sufficiently complete for this screening level review. 3 4 dwcgi 9574 1072813752 958970000. wpd Database queries. Database queries were used to analyze PCSLoads2000 data and to generate output tables. Programming code used to develop each query was reviewed by a second team member, verifying the logic. During the development of these queries EPA completed record counts verifying the number of records in the output table equaled the number of records in intermediate queries, to ensure that no data were missing and that there were no duplicate data.

Reasonableness checks  pollutant loads. EPA reviewed the EDSS output ( i. e.,

the calculated kg/ year for each discharge pipe) for those discharges with the highest toxicweighted loads ( i. e., dioxins). EPA identified some calculated discharges that were higher than expected, compared them to PCS reported concentrations and flows and TRI reported releases,

and identified some likely errors in recording units of measure. In PCS, EPA discovered that one facility reported dioxin in units of kg/ L which is extremely unlikely. This unit was corrected to pg/ L and EPA was able to use the data in the PCSLoads2000 database. If the EDSS output and TRI reported releases were similar, EPA considered the EDSS output to be acceptable.

Reasonableness checks  facility loads. EPA checked the toxic weighted loadings of facilities to ensure that they comprise a reasonable percent of the total national discharge. For some facilities which comprised a very high percent of the national discharge, EPA reviewed monthly information reported in PCS and identified non continuous, intermittent discharges. In one case a facility was only permitted to discharge six months per year. In another case, the facility discharged occasionally ( i. e., in batches). As applied by EPA, EDSS had extrapolated the intermittent discharge over the entire year, which overestimated the discharge. EPA recalculated these discharges from raw PCS data and corrected the mass loads in the PCS2000 table.

EPA also sought other available information ( such as the NPDES permit fact sheet) to correct unrealistic flow rates. In one case, where no data were available, the facility with questionable loads was deleted from this screening level analysis.

Reasonableness checks  pollutant identity. EPA ranked the pollutants discharged from each point source category and verified that the pollutants comprising the majority of the 3 5 dwcgi 9574 1072813752 958970000. wpd load could be reasonably related to operations in the industry. As a result of this review, EPA corrected the SIC/ PSC crosswalk.

Conclusion. EPA has determined that PCSLoads2000 data are usable for an initial screening level review and prioritization of the toxic weighted pollutant loadings discharged by industrial categories. EPA checked for and corrected apparent errors in PCSLoads2000; further evaluation of the prioritized categories will occur in a second level of review. The second level of review may include additional data collection and additional verification of data used by PCSLoads2000. 4 1 dwcgi 9574 1072813752 958970000. wpd 4.0 RESULTS OF PCSLOADS2000 DATABASE Section 4.0 presents the results of the PCSLoads2000 database in Tables 4 1 through 4 17. Table 4 1A presents the point source categories that account for the top 90 percent of the total toxic weighted loads associated with point source categories. Table 4 1B presents the industrial categories that are not part of a point source category that account for the top 90 percent of the total toxic weighted loads from these industrial categories. Tables 4 2 and 4 3 present the pounds and toxic weighted pounds of pollutants, respectively, for industries reported in PCS. Tables 4 4A and 4 4B present the pounds of pollutants for point source categories and industrial categories, respectively. Tables 4 5A and 4 5B present the toxicweighted pounds of pollutants for point source categories and industrial categories, respectively.

Table 4 6 presents the facilities with the top reported toxic weighted pounds discharged. Tables 4 7 through 4 14 present the pounds and toxic weighted pounds for all pollutants reported for the point source categories with the largest pollutant discharges.

Table 4 1A Top 90 Percent Regulated Point Source Categories as Reported in 2000 in PCS 40 CFR Part Point Source Category Toxic Equivalents ( tox lbs/ yr) Percent of Total Equivalents Cumulative Percent of Total Toxic Equivalents 430 Pulp, paper and paperboard 9,406,245 31% 31%

423 Steam electric power generation 8,734,590 29% 60%

414 Organic chemicals, plastics and synthetic fibers 2,251,012 7% 68%

420 Iron and steel manufacturing 2,051,270 7% 75%

422 Phosphate manufacturing 1,970,639 7% 81%

421 Nonferrous metals manufacturing 1,306,014 4% 85%

415 Inorganic chemicals 1,121,542 4% 89%

418 Fertilizer manufacturing 1,114,181 4% 93% 4 2 dwcgi 9574 1072813752 958970000. wpd Table 4 1B Top 90 Percent Industrial Categories* as Reported in 2000 in PCS SIC Category Code SIC Category Name Toxic Equivalents ( tox lbs/ yr) Percent of Total Equivalents Cumulative Percent of Total Toxic Equivalents 4941 Water Supply 611,324 64% 64%

97 National Security & International Affairs 109,122 11% 76%

49 Electric, Gas, & Sanitary Services 91,622 10% 85%

28 Chemical & Allied Products 35,444 4% 89%

99 Non classifiable Establishments 29,591 3% 92%

* Does not include SIC code 4952, Sewerage Systems. dwcgi 9574 1072813752 958970000. wpd 4 3 Table 4 2 Discharge ( lbs/ yr) by 4 Digit SIC as Reported in 2000 in PCS SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

0273 ANIMAL AQUACULTURE 2 3,321 0 1,311,865 191,472 0921 FISH HATCHERIES AND PRESERVES 3 10,418 402 386,348 36,015 1011 IRON ORES 5 57,565 1 329,007 43,586,311 1021 COPPER ORES 11 5,104 32,516 539,992 463,633,176 1031 LEAD AND ZINC ORES 23 21,738 74,428 638,297 15,088,482 1041 GOLD ORES 18 9,387 7,156 434,557 37,805,544 1044 SILVER ORES 1 17 15 1,697 13 1061 FERROALLOY ORES, EXCL VANADIUM 6 11,512 7,925 246,311 227,593,500 1094 URANIUM RADIUM VANADIUM ORES 10 145 70 11,904 1,608,235 1099 METAL ORES, NEC 3 3,255 0 117,435 7,508 1221 BITUMINOUS COAL & LIG, SURFACE 15 15,677 0 1,953,690 31,562,054 1222 BITUMINOUS COAL & LIG, UNDERGR 1 526 8 12,825 1,060 1311 CRUDE PETROLEUM & NATURAL GAS 6 4,555 0 223,371 363,842 1422 CRUSHED AND BROKEN LIMESTONE 6 19,176 < 1 1,699,076 38,273,862 1442 CONSTRUCTION SAND AND GRAVEL 4 4,629 86 198,936 29,187,513 1459 CLAY, CERAMIC & REFRAC MAT NEC 3 1,292 0 501,083 207,169 1475 PHOSPHATE ROCK 18 11,651 0 696,160 21,010,310 1479 CHEM & FERT MINERA MINING, NEC 3 17,691 0 971,333 3,088,235 1481 NONMETAL MINERAL ( EXCEPT FUELS 1 4,802 9,114 49,717 0 1629 HEAVY CONSTRUCTION, NEC 1 0 0 0 0 2011 MEAT PACKING PLANTS 21 11,465 747 3,482,750 77,348,520 2013 SAUSAGES & PREPARED MEAT PROD 1 252 105 32,929 34,999 4 4 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 2015 POULTRY SLAUGHTERING & PROCESS 24 47,508 1,179 11,620,152 7,681,501 2022 CHEESE, NATURAL AND PROCESSED 2 177 0 55,765 14,125 2023 CONDENSED AND EVAPORATED MILK 2 404 0 54,219 44,901 2026 FLUID MILK 1 250 0 53,001 2,880 2033 CANNED FRUITS, VEG, PRES, JAM 8 1,381 525 245,163 246,021 2035 PICKLED FRTS & VEG. SAUCES 2 207 0 9,747 4,165,939 2037 FROZEN FRTS, FRT JUICES & VEG 7 5,174 0 1,135,940 10,376,019 2041 FLOUR & OTHER GRAIN MILL PROD 1 187 0 42,142 783 2046 WET CORN MILLING 9 26,676 0 7,632,200 349,749 2047 DOG AND CAT FOOD 2 133 0 20,384 0 2048 PREP FEEDS & INGRED FOR ANIMA 3 522 0 37,604 76,596 2061 CANE SUGAR, EXCEPT REFINE ONLY 4 2,640 0 771,900 0 2062 CANE SUGAR REFINING 5 26,605 32 1,546,838 32,522 2063 BEET SUGAR 17 7,816 0 12,783,177 45,023,155 2067 CHEWING GUM 1 3,546 0 168,496 72,410 2075 SOYBEAN OIL MILLS 1 762 0 564,233 0 2076 VEG. OIL MILLS, EXCEPT CORN 1 0 0 47 0 2077 ANIMAL AND MARINE FATS & OILS 3 8,478 0 59,860,411 994,759,500,587 2082 MALT BEVERAGES 4 18,139 2,691 2,686,636 330,979 2083 MALT 1 176 0 30,754 0 2085 DIST, RECTIFIED & BLENDED LIQ 7 2,343 359 49,191,145 121,481,031 2091 CANNED & CURED FISH & SEAFOOD 5 3,674 161 16,107,828 718,447 2092 FRE OR FROZ PCK FISH, SEAFOOD 3 1,036 0 86,122,006 228,917 2096 POTATO CHIPS & SIMILAR SNACKS 1 101 0 79,370 0 4 5 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 2211 BROAD WOVEN FABRIC MILLS, COTT 12 5,467 2,655 1,182,077 37,061,938 2221 BROAD WOVEN FABRIC MILLS, SYNT 8 1,273 2,884 382,417 1,958,389 2231 BROAD WOVEN FABRIC MILLS, WOOL 4 1,320 1,510 658,919 2,759,547 2251 WOMEN'S FULL/ KNEE LENGTH HOSRY 1 22 44 3,029 30,264 2252 HOSIERY, NEC 1 52 220 6,362 208,472 2253 KNIT OUTERWEAR MILLS 2 159 66 40,707 157,737 2254 KNIT UNDERWEAR MILLS 1 796 42 214,631 1,114,369 2257 CIRCULAR KNIT FABRIC MILLS 3 500 459 79,388 5,349,494 2258 WARP KNIT FABRIC MILLS 3 825 290 282,130 1,187,324 2261 FINISH OF BRD WOV FAB OF COTTN 11 7,814 1,705 3,072,907 21,667,717 2262 FINISH OF BRD WOV FAB/ MAN MADE 12 7,697 4,248 2,149,826 7,043,633 2269 FINISHERS OF TEXTILES, NEC 11 2,950 20,505 796,649 6,518,700 2273 CARPETS AND RUGS, NEC 4 2,262 1,162 681,346 9,157,141 2281 YARN SPIN MILLS: COTTON, MM FIB 3 618 203 114,552 368,701 2284 THREAD MILLS 2 413 155 63,125 265,199 2299 TEXTILE GOODS, NEC 1 70 59 116,521 794,168 2411 LOGGING CAMPS/ LOGGING CONTRACT 1 10,620 0 3,850,439 40,760,781 2421 SAWMILLS & PLANING MILLS, GEN 2 900 0 37,194 124,129 2436 SOFTWOOD VENEER AND PLYWOOD 2 811 121 21,699 5,642 2491 WOOD PRESERVING 1 0 0 0 0 2493 RECONSTITUTED WOOD PRODUCTS 4 3,780 1,888 6,431,766 698,497 2499 WOOD PRODUCTS, NEC 2 501 5 3,720,381 3,943,016 2514 METAL HOUSEHOLD FURNITURE 1 221 0 21,740 1,168,817 2611 PULP MILLS 85 909,200 41,113 369,277,918 2,063,623,675 4 6 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 2621 PAPER MILLS 125 882,573 88,961 329,456,009 794,545,976 2631 PAPERBOARD MILLS 44 331,248 23,677 161,076,180 25,598,523 2653 CORRUGATED/ SOLID FIBER BOXES 3 233 1,846 3,811,465 21,750,581 2672 COATED & LAMINATED, NEC 1 633 411 123,369 227,382 2676 SANITARY PAPER PRODUCTS 2 2,963 0 112,334 34,440 2679 CONV PAPER & PAPERBRD PRODUCTS 3 11,746 4 797,927 2,065,129 2754 COMMERCIAL PRINTING, GRAVURE 1 922 487 15,805 6,660,272 2789 BOOKBINDING & RELATED WORK 1 187 141 174,603 616,809 2812 ALKALIES AND CHLORINE 17 216,153 14,072 278,163,296 1,390,841,020 2813 INDUSTRIAL GASES 3 39,533 2,171 179,719 42,260,980 2816 INORGANIC PIGMENTS 16 45,300 34,499 9,296,098 537,362,438 2819 INDUSTRIAL INORGANIC CHEMICALS 61 128,985 47,578 45,465,268 606,007,686 2821 PLSTC MAT./ SYN RESINS/ NV ELAST 92 452,826 1,339,518 87,966,492 162,316,944 2822 SYN RUBBER ( VULCAN ELASTOMERS) 16 33,216 6,119 13,425,489 21,963,500 2823 CELLULOSIC MAN MADE FIBERS 4 19,310 56,101 51,429,740 447,852,061 2824 SYN ORG FIBERS, EXCEPT CELLULOS 5 61,762 2,795 10,081,266 3,054,206 2833 MEDICINAL CHEM/ BOTANICAL PRODU 17 19,911 2,973 4,206,717 32,329,236 2834 PHARMACEUTICAL PREPARATIONS 19 47,343 23,827 8,757,655 48,584,217 2841 SOAP/ DETERG EXC SPECIAL CLEANR 2 467 275 79,445 213,228 2842 SPECIALTY CLEANING, POLISHING 1 0 0 0 0 2843 SURF ACTIVE AGENT, FIN AGENTS 4 531 68 280,485 1,116,093 2844 PERFUMES, COSMETICS, TOILET PREP 1 5 1 812 47,174 2851 PAINTS/ VARNISH/ LACQUERS/ ENAMEL 1 372 0 0 0 2861 GUM AND WOOD CHEMICALS 6 17,305 1,438 9,305,941 3,332,503 4 7 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 2865 CYCLIC CRUDES INTERM., DYES 24 78,534 74,926 2,406,174 51,648,859 2869 INDUST. ORGANIC CHEMICALS NEC 117 1,412,172 352,374 284,735,610 1,246,680,757 2873 NITROGEN FERTILIZERS 24 907,993 1,714 10,685,109 483,370,557 2874 PHOSPHATIC FERTILIZERS 15 101,734 859 34,549,881 77,786,447 2879 PESTICIDES & AGRICULTURAL CHEM 16 9,896 10,700 2,763,003 244,020,820 2891 ADHESIVES AND SEALANTS 2 629 0 59,867 1,888,499 2892 EXPLOSIVES 7 60,914 1,215 2,765,888 33,641,618 2899 CHEMICALS & CHEM PREP, NEC 10 17,047 4,145 953,879 52,427,936 2911 PETROLEUM REFINING 116 1,264,238 325,674 49,664,636 563,437,713 2951 PAVING MIXTURES AND BLOCKS 3 384 91 37,203 297,231 2952 ASPHALT FELT AND COATINGS 1 0 415 94,062 67,755 2999 PROD OF PETROLEUM & COAL, NEC 4 3,996 34 104,586 695,696 3011 TIRES AND INNER TUBES 4 2,164 563 143,943 5,331 3053 GASKETS, PACKING & SEALING DEV 1 411 56 11,421 1 3069 FABRICATED RUBBER PRODUCTS, NEC 1 18 0 8,969 0 3081 UNSUPPORTED PLSTICS FILM/ SHEET 3 135 33 18,454 8,578 3083 LAMINATED PLASTICS PLATE/ SHEET 2 1,046 260 68,581 81,944 3089 PLASTICS PRODUCTS, NEC 4 1,252 93 255,926 506,566 3111 LEATHER TANNING AND FINISHING 8 17,970 1,191 198,702 659,099 3211 FLAT GLASS 1 438 0 49,263 1,825,008 3229 PRESSED & BLOWN GLASS & GWARE 4 6,822 1,546 77,970 960,203 3241 CEMENT, HYDRAULIC 5 36,455 1,046 4,711,937 34,959,445 3251 BRICK AND STRUCTURAL CLAY TILE 1 3 0 858 167 3262 VIT CHINA TABLE & KTCHN ARTICL 1 9 1 1,449 358 4 8 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 3273 READY MIXED CONCRETE 2 0 0 0 0 3274 LIME 2 17,142 3 985,578 147,399 3297 NONCLAY REFRACTORIES 1 1,031 0 167,161 387,442,309 3312 BLAST FURN/ STEEL WORKS/ ROLLING 77 1,156,947 841,359 137,452,940 362,197,789 3313 ELECTROMETALLURGICAL PRODUCTS 3 27,746 1,150 7,096,324 5,908,983 3315 STEEL WIRE DRAW & STEEL NAILS 8 2,354 3,841 127,198 3,286,869 3316 COLD ROLLED STEEL SHEET/ STRIP 11 23,108 10,623 1,943,860 14,676,056 3317 STEEL PIPE AND TUBES 9 2,144 1,664 243,835 1,408,942 3321 GRAY IRON FOUNDRIES 4 10,128 10,995 181,264 1,476,972 3325 STEEL FOUNDRIES, NEC 2 862 10 39,082 509,429 3331 PRIMRY SMELTING & COPPER REFIN 3 2,082 9,139 6 1,935,767 3334 PRIMARY PRODUCTION OF ALUMINUM 23 242,435 26,298 44,781,831 63,365,240 3339 PRMRY SMELT/ NONFERROUS METALS 13 65,967 216,158 59,332,978 78,478,843 3341 2NDARY SMELT/ NONFERROUS METALS 14 126,472 48,136 2,841,597 5,867,403 3351 ROLL/ DRAW/ EXTRUDING OF COPPER 7 4,643 14,251 527,326 1,430,959 3353 ALUMINUM SHEET, PLATE AND FOIL 8 27,909 12,475 6,976,379 10,277,486 3354 ALUMINUM EXTRUDED PRODUCTS 3 215 48 25,181 1,272 3355 ALUMINUM ROLLING & DRAWING NEC 1 38 20,635 1,051 3356 ROLL, DRAW & EXTRUD NONFERROUS 3 1,245 6,562 96,173 769,989 3357 DRAW/ INSULAT OF NONFERROUS WIR 1 0 0 0 0 3365 ALUMINUM FOUNDRIES 2 180 110 13,317 22,164 3399 PRIMARY METAL PRODUCTS, NEC 4 2,019 5,560 180,146 1,071,658 3412 METAL BARRELS, DRUMS AND PAILS 1 84 306 6,968 29,818 3423 HAND AND EDGE TOOLS, NEC 1 49 155 481 1 4 9 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 3431 METAL SANITARY WARE 1 28 8 5,055 53 3442 METAL DOORS, SASH, AND TRIM 1 41 150 11,604 859,379 3443 FAB PLATE WORK ( BOILER SHOPS) 2 434 1,437 38,198 319,624 3444 SHEET METAL WORK 2 90 64 9,169 258,553 3448 PREFABRICATED METAL BUILDINGS 1 4 3 145 743 3452 BOLTS, NUTS, RIVETS & WASHERS 1 0 0 0 0 3462 IRON AND STEEL FORGINGS 1 89 53 10,823 617 3469 METAL STAMPINGS, NEC 2 112 192 20,060 6,537 3471 PLATING AND POLISHING 35 18,866 17,150 741,862 4,715,758 3479 METAL COATING & ALLIED SERVIC 10 31,493 68,936 1,955,930 1,422,787 3482 SMALL ARMS AMMUNITION 2 788 1,893 173,453 5,611 3483 AMMUNIT., EXC. FOR SMALL ARMS 4 55,764 102 57,617 25,861 3484 SMALL ARMS 1 1 2 30 3 3489 ORDNANCE AND ACCESSORIES, NEC 2 124 12 31,953 174 3491 INDUSTRIAL VALVES 1 53 0 0 0 3496 MISC. FABRICATED WIRE PRODUCTS 1 5 1 8 4 3497 METAL FOIL AND LEAF 1 0 117 8,810 6,998 3499 FABRICATED METAL PRODUCTS NEC 3 199 1,386 10,661 52,928 3511 TURBINES & TURBINE GENERATOR 2 24,953 < 1 145,408 28,096 3519 INTERNAL COMBUSTION ENGINES, 3 767 620 38,613 1,476 3523 FARM MACHINERY AND EQUIPMENT 1 1,793 0 65,297 102 3531 CONSTRUCTION MACHINERY 3 3,980 1,343 158,921 3,730 3541 MACHINE TOOLS, METAL CUTTING 1 54 42 535 83 3545 MACHINE TOOL ACCESSORIES 1 14 25 239 18 4 10 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 3552 TEXTILE MACHINERY 1 33 59 1,181 2,143 3559 SPECIAL INDUSTRY MACHINERY, NEC 2 58 68 986 236,125 3562 BALL AND ROLLER BEARINGS 1 1,123 1,060 29,713 8,876,525 3565 PACKAGING MACHINERY 1 26 135 0 0 3567 INDUSTRIAL FURNACES AND OVENS 1 5 0 182 237 3585 REFRIGERATION & HEATING EQUIP 1 90 233 3,314 0 3612 TRANSFORMERS 4 390 518 12,895 750 3613 SWITCHGEAR & SWITCHBOARD APPAR 2 86 994 7,525 40 3621 MOTORS AND GENERATORS 2 62 5 410 0 3624 CARBON AND GRAPHITE PRODUCTS 4 2,292 979 257,260 200,039 3625 RELAYS AND INDUSTRIAL CONTROLS 5 663 152 34,955 904,447 3629 ELECTRICAL INDUSTRIAL APPARATS 1 37 4 2,381 < 1 3632 HOUSEHOLD REFRIG. & FREEZERS 1 97 62 3,257 0 3633 HOUSEHOLD LAUNDRY EQUIPMENT 1 76 136 11,332 298 3634 ELECTRIC HOUSEWARES AND FANS 1 14 110 1,040 1,315 3639 HOUSEHOLD APPLIANCES, NEC 1 48 75 6,030 69 3641 ELECTRIC LAMPS 1 97 2 4,160 214 3646 COMMERCIAL LIGHTING FIXTURES 1 2 0 0 0 3648 LIGHTING EQUIPMENT, NEC 1 6 0 90 10,228 3661 TELEPHONE/ TELEGRAPH APPARATUS 1 269 3,632 5,158 138 3663 RADIO & TV COMMUNICATION EQUIP 1 70 17 6,195 171 3671 ELECTRON TUBES 1 191 273 2,134 1,784 3672 PRINTED CIRCUT BOARD 1 982 2,527 0 100,586 3674 SEMICONDUCTORS & RELATED DEVIC 4 18,853 18,349 642,268 8,429,887 4 11 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 3675 ELECTRONIC CAPACITORS 3 921 0 73,304 57,135 3679 ELECTRONIC COMPONENTS, NEC 2 30 36 373 966 3691 STORAGE BATTERIES 1 0 0 0 0 3711 MOTOR VEHICLES & CAR BODIES 1 0 116 3,957 9,282 3714 MOTOR VEHICLE PARTS & ACCESSOR 11 8,995 5,483 851,311 958,710 3721 AIRCRAFT 3 2,547 2,743 426,807 1,005,187 3724 AIRCRAFT ENGINES & ENGINE PART 6 98,818 603,772 274,170 3,973,457 3728 AIRCRAFT PARTS AND EQUIP, NEC 1 208 150 2,197 372 3731 SHIP BUILDING AND REPAIRING 5 16,412 7,191 1,481,303 663,945 3743 RAILROAD EQUIPMENT 2 1,287 368 113,931 17,992 3751 MOTORCYCLES, BICYCLES AND PART 2 6,326 10,829 9,595,959 192,342 3761 GUIDED MISSILES & SPACE VEHICL 2 630 10,891 187,696 2,830,798 3764 SPACE PROPULSION UNITS & PARTS 1 126 19 9,475 847,648 3795 TANKS AND TANK COMPONENTS 1 33 39 2,343 273 3812 SEARCH & NAVIGATION EQUIPMENT 2 132 113 1,640 255,816 3822 ENVIRONMENTAL CONTROLS 1 26 28 220 71 3861 PHOTOGRAPHIC EQUIP & SUPPLIES 4 12,965 37,249 3,667,905 67,509,055 3949 SPORTING & ATHLETIC GOODS, NEC 1 73 540 33,213 2,361 3965 FASTENERS, BUTTONS, NEEDLES 1 63 214 1,735 453 3996 HARD SURFACE FLOOR COVERINGS 1 128 0 5,087 10,571 4011 RAILROADS, LINE HAUL OPERATING 2 7,026 2 1,429,741 596,544 4013 RAILROAD SWTCHING & TERM ESTAB 1 150 0 13,588 0 4213 TRUCKING, EXCEPT LOCAL 4 1,085 34 638,352 6,050,018 4226 SPECIAL WAREHOUSING & STORAGE 4 1,223 110 334,936 182,043 4 12 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 4491 MARINE CARGO HANDLING 1 0 0 0 0 4581 AIRPORTS, FLYING FIELDS & SER 2 4,500 28 2,121,572 2,144,565 4612 CRUDE PETROLEUM PIPELINES 3 5,283 2,839 21,448 1,113,152,274 4789 TRANSPORTATION SERVICES, NEC 1 51 41 0 1,067,846 4911 ELECTRICAL SERVICES 541 55,431,925 2,947,384 382,527,531 13,149,097,755 4931 ELEC & OTHER SERVICES COMBINED 9 787,983 80,421 1,820,527 1,251,505 4932 GAS & OTHER SERVICES COMBINED 1 3,637 48 65,426 72,873,035 4941 WATER SUPPLY 16 41,662 9,149 9,590,916,107 99,749,845 4953 REFUSE SYSTEMS 20 28,097 36,801 7,513,357 140,511,864 4959 SANITARY SERVICES, NEC 1 2,330 336 29,011 317,224 4961 STEAM & AIR CONDITIONING SUP 3 730,065 18,725 1,546,709 368,130 5065 ELECTRONIC PARTS AND EQUIPMENT 1 3 0 49 74 5082 CONST & MINING MACHINE & EQUIP 1 0 0 0 0 5159 FARM PRODUCT RAW MATERIALS 1 417 0 51,989 11,558,155 5169 CHEMICALS AND ALLIED PRODUCTS 2 79 6 22,568 6,212 5171 PETROLEUM BULK STATIONS & TERM 8 2,819 1,596 398,752 1,129,681 5172 PETROL & PET PROD WHOLESALERS 1 101 0 3,406 1,644 5191 FARM SUPPLIES 1 657 0 813,821 445,840 6512 OPER OF NONRESIDENTIAL BLDGS 2 180 137 8,245 0 6552 LAND SUBDIVIDERS & DEV, EX CEM 5 2,013 0 175,288 128,787 7384 PHOTOFINISHING LABORATORIES 1 0 0 0 0 8062 GEN. MEDICAL/ SURGICAL HOSPITAL 2 24 0 3,559 16,899 8063 PSYCHIATRIC HOSPITALS 1 29 1 1,837 3,053 8221 COLLEGES, UNIV & PROF SCHOOLS 2 921 0 85,020 77,600 4 13 Table 4 2 ( Continued)

SIC SIC Description Number of Major Facilities1 Flow ( MGY) Discharge of Priority Pollutants ( lbs/ yr) Discharge of Conventional Pollutants ( lbs/ yr) Discharge of Nonconventional Pollutants ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 8299 SCHOOLS & EDUCATIONAL SERVICES 2 638 0 240,522 92,059 8731 COMMERCIAL PHYSICAL RESEARCH 4 7,449 347 25,911 577,793 8733 NONCOMMERCIAL RESEARCH ORGANI 1 392 431 2,711 2,986,089 8734 COMMERCIAL TESTING LABORATORY 3 365 35 7,028 1,105,600 9111 EXECUTIVE OFFICES 1 1 0 74 188,920 9199 GENERAL GOVERNMENT, NEC 1 108 0 11,578 15,940 9223 CORRECTIONAL INSTITUTIONS 6 1,199 54 117,685 586,249 9511 AIR & WATER RES & SOL WSTE MGT 7 876 1,258 31,775 1,272,522 9512 LAND, MIN, WILDLIFE/ FOREST CON 1 3,512 1,016 6,572 6,215 9611 ADMIN OF GENERAL ECONOMIC PRO 1 12,306 552 39 760,117 9711 NATIONAL SECURITY 40 103,967 63,789 11,469,166 57,973,777 9999 NONCLASSIFIABLE ESTABLISHMENTS 9 11,543 5,793 1,942,192 29,968,340 1The number of major facilities reporting in PCS in 2000.

2The sum of the reported priority pollutants.

3The sum of the reported conventional pollutants ( BOD, TSS, and oil and grease).

4The sum of the reported nonconventional pollutants ( The total pollutants minus priority pollutants and conventional pollutants). 4 14 dwcgi 9574 1072813752 958970000. wpd Table 4 3 Toxic Equivalents ( tox lbs/ yr) by 4 digit SIC as Reported in 2000 in PCS SIC SIC Description Total Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Nonconventional Pollutants Toxic Equivalents ( tox lbs/ yr)

0273 ANIMAL AQUACULTURE 16 0 16 0921 FISH HATCHERIES AND PRESERVES 266 252 14 1011 IRON ORES 172,101 < 1 172,100 1021 COPPER ORES 13,337 13,018 319 1031 LEAD AND ZINC ORES 143,891 142,719 1,172 1041 GOLD ORES 6,403 5,424 979 1044 SILVER ORES 42 41 1 1061 FERROALLOY ORES, EXCL VANADIUM 47,646 2,011 45,636 1094 URANIUM RADIUM VANADIUM ORES 98 52 46 1099 METAL ORES, NEC 42 0 42 1221 BITUMINOUS COAL & LIG, SURFACE 1,336 0 1,336 1222 BITUMINOUS COAL & LIG, UNDERGR 49 5 44 1311 CRUDE PETROLEUM & NATURAL GAS 267 0 267 1422 CRUSHED AND BROKEN LIMESTONE 17 4 14 1442 CONSTRUCTION SAND AND GRAVEL 1,441 132 1,308 1459 CLAY, CERAMIC & REFRAC MAT NEC 3,976 0 3,976 1475 PHOSPHATE ROCK 8,190 0 8,190 1479 CHEM & FERT MINERA MINING, NEC 14,727 0 14,727 1481 NONMETAL MINERAL ( EXCEPT FUELS 1,051 1,051 0 1629 HEAVY CONSTRUCTION, NEC 0 0 0 2011 MEAT PACKING PLANTS 9,561 57 9,504 2013 SAUSAGES & PREPARED MEAT PROD 101 101 0 2015 POULTRY SLAUGHTERING & PROCESS 8,492 255 8,237 2022 CHEESE, NATURAL AND PROCESSED 0 0 0 2023 CONDENSED AND EVAPORATED MILK 4 0 4 2026 FLUID MILK 0 0 0 2033 CANNED FRUITS, VEG, PRES, JAM 2,467 302 2,166 2035 PICKLED FRTS & VEG. SAUCES 103 0 103 2037 FROZEN FRTS, FRT JUICES & VEG 335 0 335 2041 FLOUR & OTHER GRAIN MILL PROD 382 0 382 2046 WET CORN MILLING 89 0 89 2047 DOG AND CAT FOOD 0 0 0 2048 PREP FEEDS & INGRED FOR ANIMA 16 0 16 Table 4 3 ( Continued)

SIC SIC Description Total Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Nonconventional Pollutants Toxic Equivalents ( tox lbs/ yr)

4 15 dwcgi 9574 1072813752 958970000. wpd 2061 CANE SUGAR, EXCEPT REFINE ONLY 0 0 0 2062 CANE SUGAR REFINING 8,506 8 8,498 2063 BEET SUGAR 6,995 0 6,995 2067 CHEWING GUM 0 0 0 2075 SOYBEAN OIL MILLS 0 0 0 2076 VEG. OIL MILLS, EXCEPT CORN 0 0 0 2077 ANIMAL AND MARINE FATS & OILS 1,250 0 1,250 2082 MALT BEVERAGES 25,781 754 25,026 2083 MALT 0 0 0 2085 DIST, RECTIFIED & BLENDED LIQ 94 47 47 2091 CANNED & CURED FISH & SEAFOOD 18,898 29 18,869 2092 FRE OR FROZ PCK FISH, SEAFOOD 63 0 63 2096 POTATO CHIPS & SIMILAR SNACKS 0 0 0 2211 BROAD WOVEN FABRIC MILLS, COTT 14,597 411 14,186 2221 BROAD WOVEN FABRIC MILLS, SYNT 38,419 4,859 33,560 2231 BROAD WOVEN FABRIC MILLS, WOOL 5,046 95 4,950 2251 WOMEN'S FULL/ KNEE LENGTH HOSRY 212 18 193 2252 HOSIERY, NEC 1,269 28 1,241 2253 KNIT OUTERWEAR MILLS 879 5 874 2254 KNIT UNDERWEAR MILLS 1 1 0 2257 CIRCULAR KNIT FABRIC MILLS 1,563 139 1,425 2258 WARP KNIT FABRIC MILLS 8,977 55 8,922 2261 FINISH OF BRD WOV FAB OF COTTN 66,068 3,688 62,380 2262 FINISH OF BRD WOV FAB/ MAN MADE 129,220 313 128,907 2269 FINISHERS OF TEXTILES, NEC 21,285 11,641 9,643 2273 CARPETS AND RUGS, NEC 4,910 151 4,759 2281 YARN SPIN MILLS: COTTON, MM FIB 1,052 70 982 2284 THREAD MILLS 53 10 44 2299 TEXTILE GOODS, NEC 3,049 2 3,047 2411 LOGGING CAMPS/ LOGGING CONTRACT 2,885 0 2,885 2421 SAWMILLS & PLANING MILLS, GEN 0 0 0 2436 SOFTWOOD VENEER AND PLYWOOD 141 99 41 2491 WOOD PRESERVING 0 0 0 2493 RECONSTITUTED WOOD PRODUCTS 819 234 585 2499 WOOD PRODUCTS, NEC < 1 < 1 0 Table 4 3 ( Continued)

SIC SIC Description Total Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Nonconventional Pollutants Toxic Equivalents ( tox lbs/ yr)

4 16 dwcgi 9574 1072813752 958970000. wpd 2514 METAL HOUSEHOLD FURNITURE 174 0 174 2611 PULP MILLS 6,958,282 6,752,703 205,579 2621 PAPER MILLS 2,438,737 453,545 1,985,192 2631 PAPERBOARD MILLS 9,226 5,708 3,518 2653 CORRUGATED/ SOLID FIBER BOXES 750 731 19 2672 COATED & LAMINATED, NEC 192 57 135 2676 SANITARY PAPER PRODUCTS < 1 0 < 1 2679 CONV PAPER & PAPERBRD PRODUCTS 49 0 48 2754 COMMERCIAL PRINTING, GRAVURE 1,435 1,306 129 2789 BOOKBINDING & RELATED WORK 812 99 713 2812 ALKALIES AND CHLORINE 170,071 80,632 89,439 2813 INDUSTRIAL GASES 1,883 1,881 2 2816 INORGANIC PIGMENTS 76,957 4,378 72,579 2819 INDUSTRIAL INORGANIC CHEMICALS 872,631 459,443 413,187 2821 PLSTC MAT./ SYN RESINS/ NV ELAST 488,611 372,777 115,834 2822 SYN RUBBER ( VULCAN ELASTOMERS) 8,680 2,373 6,307 2823 CELLULOSIC MAN MADE FIBERS 60,748 5,333 55,415 2824 SYN ORG FIBERS, EXCEPT CELLULOS 3,286 622 2,665 2833 MEDICINAL CHEM/ BOTANICAL PRODU 11,530 562 10,967 2834 PHARMACEUTICAL PREPARATIONS 8,295 4,664 3,631 2841 SOAP/ DETERG EXC SPECIAL CLEANR 164 164 0 2842 SPECIALTY CLEANING, POLISHING 0 0 0 2843 SURF ACTIVE AGENT, FIN AGENTS 240 7 233 2844 PERFUMES, COSMETICS, TOILET PREP < 1 < 1 < 1 2851 PAINTS/ VARNISH/ LACQUERS/ ENAMEL 0 0 0 2861 GUM AND WOOD CHEMICALS 42,455 12,620 29,835 2865 CYCLIC CRUDES INTERM., DYES 324,262 310,645 13,617 2869 INDUST. ORGANIC CHEMICALS NEC 1,374,105 1,056,388 317,717 2873 NITROGEN FERTILIZERS 16,173 147 16,025 2874 PHOSPHATIC FERTILIZERS 1,098,008 140 1,097,868 2879 PESTICIDES & AGRICULTURAL CHEM 10,150 1,777 8,373 2891 ADHESIVES AND SEALANTS 118 0 118 2892 EXPLOSIVES 5,550 887 4,663 2899 CHEMICALS & CHEM PREP, NEC 35,086 32,850 2,236 2911 PETROLEUM REFINING 197,589 35,394 162,195 Table 4 3 ( Continued)

SIC SIC Description Total Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Nonconventional Pollutants Toxic Equivalents ( tox lbs/ yr)

4 17 dwcgi 9574 1072813752 958970000. wpd 2951 PAVING MIXTURES AND BLOCKS 98 98 0 2952 ASPHALT FELT AND COATINGS 612 559 53 2999 PROD OF PETROLEUM & COAL, NEC 29 12 17 3011 TIRES AND INNER TUBES 65 65 < 1 3053 GASKETS, PACKING & SEALING DEV 3 3 < 1 3069 FABRICATED RUBBER PRODUCTS, NEC < 1 < 1 < 1 3081 UNSUPPORTED PLSTICS FILM/ SHEET 3,236 3,046 190 3083 LAMINATED PLASTICS PLATE/ SHEET 58 57 1 3089 PLASTICS PRODUCTS, NEC 404 18 386 3111 LEATHER TANNING AND FINISHING 5,486 81 5,405 3211 FLAT GLASS 0 0 0 3229 PRESSED & BLOWN GLASS & GWARE 2,066 1,367 699 3241 CEMENT, HYDRAULIC 15,113 399 14,714 3251 BRICK AND STRUCTURAL CLAY TILE 1 0 1 3262 VIT CHINA TABLE & KTCHN ARTICL 3 3 < 1 3273 READY MIXED CONCRETE 0 0 0 3274 LIME 30 5 25 3297 NONCLAY REFRACTORIES 3,583 0 3,583 3312 BLAST FURN/ STEEL WORKS/ ROLLING 2,039,312 1,785,849 253,464 3313 ELECTROMETALLURGICAL PRODUCTS 8,830 1,021 7,808 3315 STEEL WIRE DRAW & STEEL NAILS 2,003 1,701 302 3316 COLD ROLLED STEEL SHEET/ STRIP 8,404 3,639 4,765 3317 STEEL PIPE AND TUBES 1,551 576 976 3321 GRAY IRON FOUNDRIES 5,099 4,607 492 3325 STEEL FOUNDRIES, NEC 23 8 16 3331 PRIMRY SMELTING & COPPER REFIN 1,420 1,420 0 3334 PRIMARY PRODUCTION OF ALUMINUM 245,440 126,763 118,677 3339 PRMRY SMELT/ NONFERROUS METALS 136,438 22,410 114,029 3341 2NDARY SMELT/ NONFERROUS METALS 50,085 3,546 46,540 3351 ROLL/ DRAW/ EXTRUDING OF COPPER 5,556 5,510 46 3353 ALUMINUM SHEET, PLATE AND FOIL 103,471 2,631 100,839 3354 ALUMINUM EXTRUDED PRODUCTS 84 4 79 3355 ALUMINUM ROLLING & DRAWING NEC 70 2 68 3356 ROLL, DRAW & EXTRUD NONFERROUS 6,834 6,128 706 3357 DRAW/ INSULAT OF NONFERROUS WIR 0 0 0 Table 4 3 ( Continued)

SIC SIC Description Total Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Nonconventional Pollutants Toxic Equivalents ( tox lbs/ yr)

4 18 dwcgi 9574 1072813752 958970000. wpd 3365 ALUMINUM FOUNDRIES 711 22 689 3399 PRIMARY METAL PRODUCTS, NEC 7,374 1,326 6,048 3412 METAL BARRELS, DRUMS AND PAILS 313 313 0 3423 HAND AND EDGE TOOLS, NEC 19 19 0 3431 METAL SANITARY WARE 5 5 1 3442 METAL DOORS, SASH, AND TRIM 53 34 19 3443 FAB PLATE WORK ( BOILER SHOPS) 19,152 18,724 428 3444 SHEET METAL WORK 1,080 15 1,065 3448 PREFABRICATED METAL BUILDINGS < 1 < 1 < 1 3452 BOLTS, NUTS, RIVETS & WASHERS 0 0 0 3462 IRON AND STEEL FORGINGS 39 20 20 3469 METAL STAMPINGS, NEC 39 39 0 3471 PLATING AND POLISHING 15,967 9,054 6,913 3479 METAL COATING & ALLIED SERVIC 53,998 53,867 132 3482 SMALL ARMS AMMUNITION 644 643 1 3483 AMMUNIT., EXC. FOR SMALL ARMS 242 7 235 3484 SMALL ARMS 1 1 < 1 3489 ORDNANCE AND ACCESSORIES, NEC 113 113 0 3491 INDUSTRIAL VALVES 0 0 0 3496 MISC. FABRICATED WIRE PRODUCTS < 1 < 1 < 1 3497 METAL FOIL AND LEAF 762 1 760 3499 FABRICATED METAL PRODUCTS NEC 931 591 339 3511 TURBINES & TURBINE GENERATOR 1,533 < 1 1,533 3519 INTERNAL COMBUSTION ENGINES, 13,424 95 13,329 3523 FARM MACHINERY AND EQUIPMENT 50 0 50 3531 CONSTRUCTION MACHINERY 1,183 1,124 59 3541 MACHINE TOOLS, METAL CUTTING 17 12 4 3545 MACHINE TOOL ACCESSORIES 23 16 6 3552 TEXTILE MACHINERY 9 9 < 1 3559 SPECIAL INDUSTRY MACHINERY, NEC 51 26 25 3562 BALL AND ROLLER BEARINGS 1,133 70 1,063 3565 PACKAGING MACHINERY 19 19 0 3567 INDUSTRIAL FURNACES AND OVENS < 1 0 < 1 3585 REFRIGERATION & HEATING EQUIP 56 56 0 3612 TRANSFORMERS 2,611 785 1,826 Table 4 3 ( Continued)

SIC SIC Description Total Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Nonconventional Pollutants Toxic Equivalents ( tox lbs/ yr)

4 19 dwcgi 9574 1072813752 958970000. wpd 3613 SWITCHGEAR & SWITCHBOARD APPAR 440 420 19 3621 MOTORS AND GENERATORS 3 3 0 3624 CARBON AND GRAPHITE PRODUCTS 2,621 174 2,447 3625 RELAYS AND INDUSTRIAL CONTROLS 467 70 398 3629 ELECTRICAL INDUSTRIAL APPARATS 254 0 254 3632 HOUSEHOLD REFRIG. & FREEZERS 7 7 0 3633 HOUSEHOLD LAUNDRY EQUIPMENT 8 6 2 3634 ELECTRIC HOUSEWARES AND FANS 22 21 1 3639 HOUSEHOLD APPLIANCES, NEC 19 16 3 3641 ELECTRIC LAMPS 19 16 3 3646 COMMERCIAL LIGHTING FIXTURES 0 0 0 3648 LIGHTING EQUIPMENT, NEC 162 0 162 3661 TELEPHONE/ TELEGRAPH APPARATUS 2,129 2,129 0 3663 RADIO & TV COMMUNICATION EQUIP 17 1 15 3671 ELECTRON TUBES 194 152 42 3672 PRINTED CIRCUT BOARD 4,355 791 3,564 3674 SEMICONDUCTORS & RELATED DEVIC 23,520 18,194 5,326 3675 ELECTRONIC CAPACITORS 1,289 0 1,289 3679 ELECTRONIC COMPONENTS, NEC 101 93 9 3691 STORAGE BATTERIES 0 0 0 3711 MOTOR VEHICLES & CAR BODIES 21 20 1 3714 MOTOR VEHICLE PARTS & ACCESSOR 189,078 175,040 14,039 3721 AIRCRAFT 4,377 1,161 3,216 3724 AIRCRAFT ENGINES & ENGINE PART 227,633 130,055 97,578 3728 AIRCRAFT PARTS AND EQUIP, NEC 70 40 30 3731 SHIP BUILDING AND REPAIRING 4,619 4,199 420 3743 RAILROAD EQUIPMENT 559 297 263 3751 MOTORCYCLES, BICYCLES AND PART 1,631 563 1,068 3761 GUIDED MISSILES & SPACE VEHICL 1,474 974 501 3764 SPACE PROPULSION UNITS & PARTS 45 10 35 3795 TANKS AND TANK COMPONENTS 10 10 0 3812 SEARCH & NAVIGATION EQUIPMENT 34 13 21 3822 ENVIRONMENTAL CONTROLS 12 12 0 3861 PHOTOGRAPHIC EQUIP & SUPPLIES 103,592 98,902 4,690 3949 SPORTING & ATHLETIC GOODS, NEC 59 51 8 Table 4 3 ( Continued)

SIC SIC Description Total Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Nonconventional Pollutants Toxic Equivalents ( tox lbs/ yr)

4 20 dwcgi 9574 1072813752 958970000. wpd 3965 FASTENERS, BUTTONS, NEEDLES 65 65 < 1 3996 HARD SURFACE FLOOR COVERINGS 0 0 0 4011 RAILROADS, LINE HAUL OPERATING 11,701 1 11,700 4013 RAILROAD SWTCHING & TERM ESTAB 0 0 0 4213 TRUCKING, EXCEPT LOCAL 3,039 2 3,037 4226 SPECIAL WAREHOUSING & STORAGE 2,173 20 2,154 4491 MARINE CARGO HANDLING 0 0 0 4581 AIRPORTS, FLYING FIELDS & SER 466 31 435 4612 CRUDE PETROLEUM PIPELINES 347 171 176 4789 TRANSPORTATION SERVICES, NEC 7 7 0 4911 ELECTRICAL SERVICES 8,734,590 1,944,337 6,790,253 4931 ELEC & OTHER SERVICES COMBINED 75,673 53,392 22,281 4932 GAS & OTHER SERVICES COMBINED 30 30 0 4941 WATER SUPPLY 611,324 8,776 602,548 4953 REFUSE SYSTEMS 201,429 190,981 10,448 4959 SANITARY SERVICES, NEC 15 15 0 4961 STEAM & AIR CONDITIONING SUP 15,919 15,718 201 5065 ELECTRONIC PARTS AND EQUIPMENT 0 0 0 5082 CONST & MINING MACHINE & EQUIP 0 0 0 5159 FARM PRODUCT RAW MATERIALS 212 0 212 5169 CHEMICALS AND ALLIED PRODUCTS 151 0 151 5171 PETROLEUM BULK STATIONS & TERM 5,461 3,637 1,824 5172 PETROL & PET PROD WHOLESALERS 0 0 0 5191 FARM SUPPLIES 581 0 581 6512 OPER OF NONRESIDENTIAL BLDGS 31 31 0 6552 LAND SUBDIVIDERS & DEV, EX CEM 78 0 78 7384 PHOTOFINISHING LABORATORIES 0 0 0 8062 GEN. MEDICAL/ SURGICAL HOSPITAL 5 0 5 8063 PSYCHIATRIC HOSPITALS < 1 < 1 < 1 8221 COLLEGES, UNIV & PROF SCHOOLS 322 0 322 8299 SCHOOLS & EDUCATIONAL SERVICES 6,570 0 6,570 8731 COMMERCIAL PHYSICAL RESEARCH 1,187 241 945 8733 NONCOMMERCIAL RESEARCH ORGANI 71 51 21 8734 COMMERCIAL TESTING LABORATORY 7 5 2 9111 EXECUTIVE OFFICES 2 0 2 Table 4 3 ( Continued)

SIC SIC Description Total Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Nonconventional Pollutants Toxic Equivalents ( tox lbs/ yr)

4 21 dwcgi 9574 1072813752 958970000. wpd 9199 GENERAL GOVERNMENT, NEC 1 0 1 9223 CORRECTIONAL INSTITUTIONS 546 34 512 9511 AIR & WATER RES & SOL WSTE MGT 342 289 53 9512 LAND, MIN, WILDLIFE/ FOREST CON 966 594 371 9611 ADMIN OF GENERAL ECONOMIC PRO 4,163 2,382 1,781 9711 NATIONAL SECURITY 109,122 83,841 25,280 9999 NONCLASSIFIABLE ESTABLISHMENTS 29,591 977 28,614 1Total toxic equivalents are equal to the sum of the priority pollutants toxic equivalents and the nonconventional pollutants toxic equivalents. dwcgi 9574 1072813752 958970000. wpd 4 22 Table 4 4A Discharge ( lbs/ yr) by Regulated Point Source Categories as Reported in 2000 in PCS 40 CFR Part Point Source Category Number of Major Facilities Flow ( MGY) Priority Pollutants Discharged ( lbs/ yr) Conventional Pollutants Discharged ( lbs/ yr) Non Conventional Pollutants Discharged ( lbs/ yr)

405 Dairy products processing 5 831 0 162,985 61,906 406 Grain mills manufacturing 12 26,997 0 7,694,726 350,532 407 Fruits and vegetable processing 17 6,761 525 1,390,850 14,787,979 408 Canned and preserved seafood 8 4,710 161 102,229,834 947,364 409 Sugar processing 26 37,062 32 15,101,915 45,055,677 410 Textile mills 79 32,237 36,207 9,844,586 95,642,793 411 Cement manufacturing 5 36,455 1,046 4,711,937 34,959,445 413 Electroplating 35 18,866 17,150 741,862 4,715,758 414 Organic chemicals, plastics and synthetic fibers 242 2,024,604 1,825,713 436,619,282 1,911,552,826 415 Inorganic chemicals 97 429,971 98,321 333,104,381 2,576,472,124 417 Soaps and detergents manufacturing 2 467 275 79,445 213,228 418 Fertilizer manufacturing 39 1,009,728 2,573 45,234,990 561,157,005 419 Petroleum refining 116 1,264,238 325,674 49,664,636 563,437,713 420 Iron and steel manufacturing 105 1,184,553 857,487 139,767,833 381,569,657 421 Nonferrous metals manufacturing 114 565,940 347,309 152,421,680 755,654,939 422 Phosphate manufacturing 76 230,719 48,437 80,015,149 683,794,134 423 Steam electric power generation 541 55,431,925 2,947,384 382,527,531 13,149,097,755 424 Ferroalloy manufacturing 3 27,746 1,150 7,096,324 5,908,983 425 Leather tanning and finishing 8 17,970 1,191 198,702 659,099 426 Glass manufacturing 1 438 0 49,263 1,825,008 4 23 Table 4 4A ( Continued)

40 CFR Part Point Source Category Number of Major Facilities Flow ( MGY) Priority Pollutants Discharged ( lbs/ yr) Conventional Pollutants Discharged ( lbs/ yr) Non Conventional Pollutants Discharged ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 428 Rubber Manufacturing 22 35,809 6,737 13,589,823 21,968,831 429 Timber products processing 11 5,993 2,013 10,211,039 4,771,284 430 Pulp, paper and paperboard 254 2,123,021 153,751 859,810,107 2,883,768,174 432 Meat products processing 49 67,703 2,032 74,996,242 994,844,565,607 433 Metal finishing 134 277,238 746,230 0 13,244,711 434 Coal mining 16 16,203 8 1,966,515 31,563,114 435 Oil and gas extraction 6 4,555 0 223,371 363,842 436 Mineral mining and processing 35 59,240 9,200 4,116,305 91,767,088 438 Metal products and machinery 105 18 21,108 17,593,439 78,495,941 439 Pharmaceutical manufacturing 36 67,254 26,800 12,964,372 80,913,453 440 Ore mining and dressing 77 108,722 122,110 2,319,198 789,322,770 443 Paving and roofing materials ( tars and asphalt) 5 512 506 136,353 375,558 445 Landfills 20 28,097 36,801 7,513,357 140,511,864 446 Paint formulating 1 372 0 0 0 451 Aquatic animal production industry 2 3,321 0 1,311,865 191,472 454 Gum and wood chemicals 6 17,305 1,438 9,305,941 3,332,503 455 Pesticide chemicals manufacturing, formulation and packaging 16 9,896 10,700 2,763,003 244,020,820 457 Explosives 7 60,914 1,215 2,765,888 33,641,618 459 Photographic 1 0 0 0 0 460 Hospital 3 53 1 5,396 19,952 461 Battery manufacturing 1 0 0 0 0 4 24 Table 4 4A ( Continued)

40 CFR Part Point Source Category Number of Major Facilities Flow ( MGY) Priority Pollutants Discharged ( lbs/ yr) Conventional Pollutants Discharged ( lbs/ yr) Non Conventional Pollutants Discharged ( lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 463 Plastic molding and forming 9 2,433 386 342,962 597,088 464 Metal molding and casting ( foundries) 8 11,171 11,115 233,663 2,008,565 466 Porcelain enameling 16 31,853 69,409 2,001,664 1,429,744 467 Aluminum forming 13 28,123 12,561 7,022,196 10,279,809 468 Copper forming 8 4,643 14,251 527,326 1,430,959 469 Electrical and electronic components 5 19,044 18,622 644,402 8,431,671 471 Nonferrous metals forming and metal powders 14 59,816 14,116 507,390 1,873,119 1The number of major facilities reporting in PCS in 2000.

2The sum of the reported priority pollutants.

3The sum of the reported conventional pollutants ( BOD, TSS, and oil and grease).

4The sum of the reported nonconventional pollutants ( The total pollutants minus priority pollutants and conventional pollutants). dwcgi 9574 1072813752 958970000. wpd 4 25 Table 4 4B Discharge ( lbs/ yr) by Industrial Categories as Reported in 2000 in PCS SIC Group1 SIC Group Description Number of Major Facilities2 Flow ( MGY) Priority Pollutants Discharged ( lbs/ yr) 3 Conventional Pollutants Discharged ( lbs/ yr) 4 Non Conventional Pollutants Discharged ( lbs/ yr) 5 96 Administration of Economic Programs 1 12,306 552 39 760,117 28 Chemical & Allied Products 18 18,212 4,214 1,295,044 55,479,703 82 Educational Services 4 1,559 0 325,542 169,659 49 Electric, Gas, & Sanitary Services 13 1,521,685 99,195 3,432,661 74,492,670 87 Engineering & Management Services 8 8,206 813 35,649 4,669,482 95 Environmental Quality & Housing 8 4,388 2,274 38,347 1,278,737 91 Executive, Legislative, & General 2 109 0 11,652 204,860 9 Fishing, Hunting, & Trapping 3 10,418 402 386,348 36,015 20 Food & Kindred Products 19 25,589 3,050 52,758,286 121,961,016 16 Heavy Construction, Except Building 1 0 0 0 0 92 Justice, Public Order, & Safety 6 1,199 54 117,685 586,249 24 Lumber & Wood Products 1 10,620 0 3,850,439 40,760,781 97 National Security & International Affairs 40 103,967 63,789 11,469,166 57,973,777 99 Non classifiable Establishments 9 11,543 5,793 1,942,192 29,968,340 26 Paper & Allied Products 9 15,575 2,262 4,845,095 24,077,532 29 Petroleum & Coal Products 4 3,996 34 104,586 695,696 5171 Petroleum Bulk Stations & Term 8 2,819 1,596 398,752 1,129,681 46 Pipelines, Except Natural Gas 3 5,283 2,839 21,448 1,113,152,274 27 Printing & Publishing 2 1,109 628 190,409 7,277,081 40 Railroad Transportation 3 7,176 2 1,443,329 596,544 4 26 Table 4 4B ( Continued)

SIC Group1 SIC Group Description Number of Major Facilities2 Flow ( MGY) Priority Pollutants Discharged ( lbs/ yr) 3 Conventional Pollutants Discharged ( lbs/ yr) 4 Non Conventional Pollutants Discharged ( lbs/ yr) 5 dwcgi 9574 1072813752 958970000. wpd 65 Real Estate 7 2,193 137 183,532 128,787 4959 Sanitary Services 1 2,330 336 29,011 317,224 32 Stone, Clay, & Glass Products 11 25,006 1,551 1,233,016 388,550,436 45 Transportation by Air 2 4,500 28 2,121,572 2,144,565 47 Transportation Services 1 51 41 0 1,067,846 42 Trucking & Warehousing 8 2,307 145 973,288 6,232,061 4941 Water Supply 16 41,662 9,149 9,590,916,107 99,749,845 44 Water Transportation 1 0 0 0 0 50 Wholesale Trade Durable Goods 2 3 0 49 74 51 Wholesale Trade Nondurable Goods 5 1,254 6 891,784 12,011,851 1If an SIC code does not have an applicable point source category, it is grouped by the first two digits of the SIC or grouped by the four digit SIC.

2The number of major facilities reporting in PCS in 2000.

3The sum of the reported priority pollutants.

4The sum of the reported conventional pollutants ( BOD, TSS, and oil and grease).

5The sum of the reported non conventional pollutants ( The total pollutants  priority pollutants and conventional pollutants). dwcgi 9574 1072813752 958970000. wpd 4 27 Table 4 5A Toxic Equivalents ( tox lbs/ yr) by Regulated Point Source Categories as Reported in 2000 in PCS 40 CFR Part Point Source Category Total Toxic Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Non Conventional Toxic Equivalents ( tox lbs/ yr)

405 Dairy products processing 4 0 4 406 Grain mills manufacturing 471 0 471 407 Fruits and vegetable processing 2,905 302 2,603 408 Canned and preserved seafood 18,961 29 18,932 409 Sugar processing 15,501 8 15,493 410 Textile mills 296,601 21,486 275,114 411 Cement manufacturing 15,113 399 14,714 413 Electroplating 15,967 9,054 6,913 414 Organic chemicals, plastics and synthetic fibers 2,251,012 1,745,764 505,248 415 Inorganic chemicals 1,121,542 546,334 575,208 417 Soaps and detergents manufacturing 164 164 0 418 Fertilizer manufacturing 1,114,181 288 1,113,893 419 Petroleum refining 197,589 35,394 162,195 420 Iron and steel manufacturing 2,051,270 1,791,764 259,506 421 Nonferrous metals manufacturing 1,306,014 613,581 692,433 422 Phosphate manufacturing 1,970,639 459,584 1,511,055 423 Steam electric power generation 8,734,590 1,944,337 6,790,253 424 Ferroalloy manufacturing 8,830 1,021 7,808 425 Leather tanning and finishing 5,486 81 5,405 426 Glass manufacturing 0 0 0 428 Rubber manufacturing 8,748 2,441 6,307 4 28 Table 4 5A ( Continued)

40 CFR Part Point Source Category Total Toxic Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Non Conventional Toxic Equivalents ( tox lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 429 Timber products processing 960 334 626 430 Pulp, paper and paperboard 9,406,245 7,211,956 2,194,290 432 Meat products processing 19,404 413 18,991 433 Metal finishing 445,785 317,940 127,845 434 Coal mining 1,385 5 1,380 435 Oil and gas extraction 267 0 267 436 Mineral mining and processing 29,402 1,187 28,215 438 Metal products and machinery 197,082 173,824 23,257 439 Pharmaceutical manufacturing 19,825 5,227 14,598 440 Ore mining and dressing 383,560 163,265 220,295 443 Paving and roofing materials ( tars and asphalt) 710 657 53 445 Landfills 201,429 190,981 10,448 446 Paint formulating 0 0 0 451 Aquatic animal production industry 16 0 16 454 Gum and wood chemicals 42,455 12,620 29,835 455 Pesticide chemicals manufacturing, formulation and 10,150 1,777 8,373 457 Explosives 5,550 887 4,663 459 Photographic 0 0 0 460 Hospital 5 0 5 461 Battery manufacturing 0 0 0 463 Plastic molding and forming 3,698 3,121 577 464 Metal molding and casting ( foundries) 5,833 4,636 1,197 4 29 Table 4 5A ( Continued)

40 CFR Part Point Source Category Total Toxic Equivalents ( tox lbs/ yr) 1 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Non Conventional Toxic Equivalents ( tox lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 466 Porcelain enameling 54,077 53,941 137 467 Aluminum forming 103,624 2,638 100,987 468 Copper forming 5,556 5,510 46 469 Electrical and electronic components 23,714 18,345 5,369 471 Nonferrous metals forming and metal powders 15,095 8,104 6,991 1Total toxic equivalents are equal to the sum of the priority pollutants toxic equivalents and the nonconventional pollutants toxic equivalents. dwcgi 9574 1072813752 958970000. wpd 4 30 Table 4 5B Toxic Equivalents ( tox lbs/ yr) by Industrial Categories as Reported in 2000 in PCS SIC Group1 Point Source Category Total Toxic Equivalents ( tox lbs/ yr) 2 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Non Conventional Toxic Equivalents ( tox lbs/ yr)

96 Administration of economic programs 4,163 2,382 1,781 28 Chemical & allied products 35,444 32,857 2,587 82 Educational services 6,892 0 6,892 49 Electric, gas, & sanitary services 91,622 69,140 22,481 87 Engineering & management services 1,265 298 967 95 Environmental quality & housing 1,307 883 424 91 Executive, legislative, & general 3 0 3 9 Fishing, hunting, & trapping 266 252 14 20 Food & kindred products 25,890 801 25,089 16 Heavy construction, except building 0 0 0 92 Justice, public order, & safety 546 34 512 24 Lumber & wood products 2,885 0 2,885 97 National security & international affairs 109,122 83,841 25,280 99 Non classifiable establishments 29,591 977 28,614 26 Paper & allied products 990 788 202 29 Petroleum & coal products 29 12 17 5171 Petroleum bulk stations & term 5,461 3,637 1,824 46 Pipelines, except natural gas 347 171 176 27 Printing & publishing 2,247 1,405 842 40 Railroad transportation 11,701 1 11,700 65 Real estate 109 31 78 4 31 Table 4 5B ( Continued)

SIC Group1 Point Source Category Total Toxic Equivalents ( tox lbs/ yr) 2 Priority Pollutants Toxic Equivalents ( tox lbs/ yr) Non Conventional Toxic Equivalents ( tox lbs/ yr)

dwcgi 9574 1072813752 958970000. wpd 4959 Sanitary services 15 15 0 32 Stone, clay, & glass products 5,683 1,374 4,308 45 Transportation by air 466 31 435 47 Transportation services 7 7 0 42 Trucking & warehousing 5,212 22 5,191 4941 Water supply 611,324 8,776 602,548 44 Water transportation 0 0 0 50 Wholesale trade durable goods 0 0 0 51 Wholesale trade nondurable goods 945 0 944 1If an SIC code does not have an applicable point source category, it is grouped by the first two digits of the SIC or grouped by the four digit SIC.

2Total toxic equivalents are equal to the sum of the priority pollutants toxic equivalents and the nonconventional pollutants toxic equivalents. dwcgi 9574 1072813752 958970000. wpd 4 32 Table 4 6 Facilities Comprising 90% of the Toxic Equivalents ( tox lbs/ yr) as Reported in 2000 in PCS1 NPID Facility Name SIC Toxic Equivalents2 ( tox lbs/ yr) Percent of Total Toxic Equivalents Cumulative Percent of Total Toxic Equivalents GA0003620 ITT RAYONIER INC ( JESUP) 2611 5,113,756 18% 18%

TN0002356 BOWATER INC. SOUTHERN DIVISIO 2621 1,860,492 7% 25%

AR0002968 DOMTAR A W CORP ASHDOWN OPERAT 2611 1,452,852 5% 30%

PR0025984 ECOELECTRICA LNG & COGENERATIO 4911 1,350,030 5% 35%

LA0004847 IMC PHOSPHATES CO  UNCLE SAM 2874 1,081,075 4% 39%

AL0003247 SLOSS INDUSTRIES CORPORATION 3312 680,721 2% 41%

DC0000019 WASH AQUEDUCT DALECARLIA PLANT 4941 497,629 2% 43%

MA0004898 MIRANT KENDALL LLC 4911 408,411 1% 44%

CA0001139 AES ALAMITOS LLC 4911 397,603 1% 46%

CT0003875 RESOURCE RECOVERY SYSTEMS OF 4911 385,877 1% 47%

SC0001783 CELANESE ACETATE LLC/ CELRIVER 2869 383,648 1% 48%

TX0000710 NORIT AMERICAS INC. 2819 359,891 1% 50%

PA0004472 US STEEL CORP 3312 343,459 1% 51%

NY0000493 GINNA NUCLEAR POWER PLT STA 13 4911 312,941 1% 52%

AL0002801 KIMBERLY CLARK CORPORATION 2621 303,588 1% 53%

WV0000086 BAYER CROPSCIENCE USA LP 2869 264,578 1% 54%

PR0000698 PUERTO RICO ELECTRIC PWR AUTH 4911 250,670 1% 55%

PA0008281 PPL BRUNNER ISLAND LLC 4911 230,017 1% 56%

CT0001376 UNITED TECHNOLOGIES PRATT & 3724 225,820 1% 56%

OH0012581 AMERICAN ELECTRIC POWER 4911 221,484 1% 57%

ME0000272 FPL ENERGY WYMAN STATION 4911 211,429 1% 58% 4 33 Table 4 6 ( Continued)

NPID Facility Name SIC Toxic Equivalents2 ( tox lbs/ yr) Percent of Total Toxic Equivalents Cumulative Percent of Total Toxic Equivalents dwcgi 9574 1072813752 958970000. wpd MI0001686 DECO ST CLAIR PLT 4911 189,630 1% 59%

WV0000094 CROMPTON CORP 2821 181,887 1% 59%

IN0000281 U. S. STEEL LLC  GARY WORKS 3312 178,122 1% 60%

AL0003417 ABC COKE DIV DRUMMOND CO INC 3312 178,122 1% 61%

MN0055301 NORTHSHORE MINING/ SILVER BAY P 1011 169,052 1% 61%

WV0000108 KINCAID ENTERPRISES 2819 168,828 1% 62%

IL0003751 DURA AUTOMOTIVE SYSTEMS 3714 159,058 1% 62%

WV0002399 E I DUPONT DE NEMOURS & CO 2869 152,328 1% 63%

OH0004316 DAYTON POWER & LIGHT CO. 4911 149,974 1% 63%

IL0000108 AMEREN  COFFEEN POWER STATION 4911 149,038 1% 64%

CA0001147 EL SEGUNDO POWER LLC 4911 146,304 1% 64%

AR0037800 TERIS LLC ( D/ B/ A ENSCO) 4953 143,908 1% 65%

KY0001431 ATOFINA CHEMICALS INC 2869 143,855 1% 65%

WV0005169 BAYER CORP 2865 143,625 1% 66%

UT0000361 GENEVA STEEL 3312 141,686 1% 67%

PA0013714 EXELON GENERATION CO EDDYSTONE 4911 140,827 0% 67%

CA0001180 RELIANT ENERGY 4911 127,303 0% 67%

SC0003441 BAYER CORP/ BUSHY PARK SITE 2865 124,527 0% 68%

PA0001571 ORION POWER MIDWEST L. P 4911 123,957 0% 68%

OK0000451 OK GAS & ELEC SEMINOLE GENERAT 4911 119,332 0% 69%

MI0001791 DECO TRENTON PLT 4911 114,229 0% 69%

SC0002798 ARTEVA SPECIALTIES D/ B/ A KOSA 2821 112,420 0% 70% 4 34 Table 4 6 ( Continued)

NPID Facility Name SIC Toxic Equivalents2 ( tox lbs/ yr) Percent of Total Toxic Equivalents Cumulative Percent of Total Toxic Equivalents dwcgi 9574 1072813752 958970000. wpd CA0001198 RELIANT ENERGY 4911 108,403 0% 70%

GA0003654 GA. PACIFIC BRUNSWICK OPERAT. 2611 106,193 0% 70%

IN0001155 ALUMINUM CO. OF AMER. ( ALCOA) 3334 102,155 0% 71%

AZ0023426 PHOENIX CITY OF 4941 100,065 0% 71%

CA0003743 DUKE ENERGY MORRO BAY LLC 4911 99,301 0% 71%

NY0020109 ENTERGY NUCLEAR FITZPATRICK 4911 98,354 0% 72%

LA0029769 IMC PHOSPHATES CO  FAUSTINA 2819 97,604 0% 72%

NY0001643 EASTMAN KODAK CO 3861 97,388 0% 72%

AL0002879 AL POWER CO BARRY STEAM PLT 4911 97,077 0% 73%

MD0000094 VIENNA POWER LLC 4911 96,044 0% 73%

NC0006033 TOWN OF CRAMERTON WWTP 2262 94,387 0% 73%

NJ0004995 MERCER GENERATING STATION 4911 93,808 0% 74%

NJ0005100 E I DU PONT DE NEMOURS 2869 92,163 0% 74%

MA0004731 EXCELON NEW BOSTON LLC 4911 91,530 0% 74%

DE0050580 DELMARVA P & L INDIAN RIVER PO 4911 90,004 0% 75%

MI0002313 NAT STEEL CORP GLD ECORSE 3312 88,883 0% 75%

IN0002763 PSI CAYUGA GENERATING STATION 4911 87,014 0% 75%

IL0049191 AMEREN CIPS  NEWTON 4911 83,485 0% 76%

OH0002925 TOLEDO EDISON COMPANY 4911 81,386 0% 76%

WV0004359 PPG INDUSTRIES INC. 2812 78,795 0% 76%

NY0002143 ALCAN ALUMINUM CORP 3353 78,342 0% 77%

AL0003646 USX CORP FAIRFIELD WORKS 3312 77,531 0% 77% 4 35 Table 4 6 ( Continued)

NPID Facility Name SIC Toxic Equivalents2 ( tox lbs/ yr) Percent of Total Toxic Equivalents Cumulative Percent of Total Toxic Equivalents dwcgi 9574 1072813752 958970000. wpd UT0022403 JORDANELLE SPECIAL SERVICE DIS 1031 77,090 0% 77%

TX0002666 WEST TEXAS UTILITIES COMPANY 4911 75,855 0% 77%

CA0006254 DUKE ENERGY MOSS LANDING LLC 4911 75,837 0% 78%

CA0001201 AES CORPORATION 4911 75,351 0% 78%

WV0073679 CLEARON CORP 2819 74,656 0% 78%

IN0002810 PSI WABASH RIVER GEN. STATION 4911 74,504 0% 78%

VA0004162 International Paper  Franklin 2611 73,812 0% 79%

LA0004324 ENTERGY NEW ORLEANS INC MICH 4911 73,622 0% 79%

WV0003336 WEIRTON STEEL CORP 3312 73,459 0% 79%

AR0000523 US VANADIUM CORP STRATCOR 3339 73,027 0% 79%

GA0003646 KERR MCGEE PIGMENTS 2816 72,090 0% 80%

WI0026042 WEYERHAEUSER COMPANY 2621 71,104 0% 80%

OR0001074 POPE & TALBOT INC 2611 68,511 0% 80%

WV0004499 WHEELING PITTSBURGH STEEL CORP 3312 66,731 0% 80%

DE0000558 CONECTIV DELMARVA GENERATION 4911 65,376 0% 81%

ME0021521 SAPPI 2621 63,123 0% 81%

NY0007340 CHARLES POLETTI POWER PROJECT 4911 62,597 0% 81%

IN0000221 STATE LINE ENERGY LLC 4911 59,806 0% 81%

MD0001503 CONSTELLATION POWER 4931 59,515 0% 82%

NY0005118 ASTORIA GENERATING STATION 4911 59,392 0% 82%

NY0005100 ARTHUR KILL GENERATING STATION 4911 58,236 0% 82%

AL0003026 ACORDIS CELLULOSIC FIBERS INC 2823 57,392 0% 82% 4 36 Table 4 6 ( Continued)

NPID Facility Name SIC Toxic Equivalents2 ( tox lbs/ yr) Percent of Total Toxic Equivalents Cumulative Percent of Total Toxic Equivalents dwcgi 9574 1072813752 958970000. wpd WV0005291 OHIO POWER CO 4911 57,151 0% 82%

IL0024767 SPRINGFIELD CWLP 4911 56,589 0% 83%

LA0000329 HONEYWELL INTERNATIONAL INC. 2819 54,496 0% 83%

TX0007048 LUBRIZOL CORPORATION THE 2869 54,066 0% 83%

IL0064254 MIDWEST GENERATION LLC JOLIET 4911 53,340 0% 83%

PA0008869 PH GLATFELTER CO 2621 53,141 0% 83%

OH0011371 WHEELING PITTSBURG STEEL 3479 51,128 0% 84%

WV0000868 FLEXSYS AMERICA LP 2869 50,609 0% 84%

PA0001627 ORION POWER MIDWEST L. P. 4911 50,469 0% 84%

AL0001945 OLIN CORPORATION 2812 49,519 0% 84%

OH0011525 OHIO EDISON 4911 49,367 0% 84%

SC0001015 BOWATER INC/ COATED PAPER DIV 2611 49,348 0% 84%

TN0060127 PASMINCO ZINC. INC. 1031 49,271 0% 85%

IN0002887 IPALCO PETERSBURG GEN STATION 4911 47,993 0% 85%

CT0003093 NRG NORWALK HARBOR OPERATIONS 4911 46,659 0% 85%

OH0007269 DOVER CHEMICAL 2869 46,511 0% 85%

TN0005410 TVA BULL RUN STEAM 4911 46,494 0% 85%

CT0003263 MILLSTONE NUCLEAR POWER STA 4911 46,260 0% 85%

CO0000248 CLIMAX MOLYBDENUM COMPANY 1061 45,994 0% 86%

SC0001368 CONE MILLS CORP/ CARLISLE PLANT 2261 44,288 0% 86%

PR0001660 PUERTO RICO ELECTRIC PWR AUTH 4911 43,841 0% 86%

NY0005193 RAVENSWOOD GENERATING STATION 4911 43,718 0% 86% 4 37 Table 4 6 ( Continued)

NPID Facility Name SIC Toxic Equivalents2 ( tox lbs/ yr) Percent of Total Toxic Equivalents Cumulative Percent of Total Toxic Equivalents dwcgi 9574 1072813752 958970000. wpd SC0003557 HONEYWELL INTNL/ COLUMBIA SITE 2821 43,186 0% 86%

TN0005355 TVA ALLEN STEAM 4911 43,117 0% 86%

ND0025232 BASIN ELEC POWER COOP LELAND 4911 41,400 0% 86%

SC0000175 US DOE/ SAVANNAH RIVER SITE 2819 40,327 0% 87%

CA0001163 AES HUNTINGTON BEACH LLC 4911 39,895 0% 87%

IL0000329 NATIONAL STEEL GRANITE CITY 3312 39,878 0% 87%

IL0004316 SOUTHERN ILL POWER MARION 4911 38,704 0% 87%

WV0022047 GE SPECIALTY CHEMICALS INC 2865 38,202 0% 87%

CA0001368 DUKE ENERGY SO BAY LLC 4911 37,560 0% 87%

PA0002917 ALLEGHENY ENERGY SUPPLY CO LLC 4911 37,003 0% 87%

NH0090000 PEASE DEVELOPMENT AUTHORITY 9711 36,380 0% 88%

AL0000019 U S ARMY REDSTONE ARSENAL 9711 35,861 0% 88%

AL0002666 UOP MOLECULAR SIEVE PLANT 2819 34,639 0% 88%

TN0005444 TVA JOHNSONVILLE STEAM 4911 34,409 0% 88%

MI0038172 DECO BELLE RIVER PLT 4911 34,348 0% 88%

TX0003531 EQUISTAR CHEMICALS L. P. 2869 34,086 0% 88%

ND0000370 MINNKOTA POWER COOP YOUNG STAT 4911 32,851 0% 88%

PA0005061 ORION POWER MIDWEST LP  NEW C 4911 32,593 0% 88%

LA0038890 ONDEO NALCO COMPANY 2899 32,349 0% 89%

MA0004928 MIRANT CANAL LLC 4911 32,151 0% 89%

OR0001708 NORTHWEST ALUMINUM CO 3334 32,031 0% 89%

MI0001724 DECO RIVER ROUGE PLANT 4911 31,389 0% 89% 4 38 Table 4 6 ( Continued)

NPID Facility Name SIC Toxic Equivalents2 ( tox lbs/ yr) Percent of Total Toxic Equivalents Cumulative Percent of Total Toxic Equivalents dwcgi 9574 1072813752 958970000. wpd TX0063215 SOUTHWESTERN ELEC POWER ( WELSH 4911 31,041 0% 89%

LA0007374 ENTERGY OPERATIONS WATERFORD# 3 4911 30,785 0% 89%

AL0003875 TVA WIDOWS CREEK FOSSIL PLANT 4911 29,421 0% 89%

IN0001210 ALUMINUM CO. OF AM. ( ALCOA) 3341 28,745 0% 89%

IN0002798 PSI GALLAGHER GEN. STATION 4911 28,637 0% 89%

LA0002887 CLECO TECHE 4911 28,592 0% 90%

AL0055239 GULF STATES STEEL INC 3312 28,456 0% 90%

PA0008451 SUNBURY GENERATION LLC 4911 28,376 0% 90%

MS0002941 GEORGIA PACIFIC CORPORATION 2861 27,930 0% 90%

AL0026832 GOLDEN ROD BROILERS CULLMAN 9999 27,910 0% 90%

NC0043320 BURLINGTON INDUSTRIES/ RICHMOND 2221 27,782 0% 90%

TX0001392 WEST TEXAS UTILITIES COMPANY 4911 27,711 0% 90%

NC0000396 CP& L ASHEVILLE S. E. ( PWR PLT) 4911 26,797 0% 90%

NY0072061 CWM CHEMICAL SERVICES LLC 4953 26,466 0% 90%

NH0001473 P. S. OF NH SCHILLER STATION 4911 26,094 0% 90%

AL0024619 SOUTHERN NUCLEAR OPERATING CO 4911 25,408 0% 90%

1Excluding Sewerage Systems ( SIC 4952)

2Total toxic equivalents are equal to the sum of the priority pollutants toxic equivalents and the nonconventional pollutants toxic equivalents. dwcgi 9574 1072813752 958970000. wpd 4 39 Table 4 7 Summary of Pollutants Discharged by the Steam Electric Power Generation Point Source Category 40 CFR Part 423, SIC Code 4911 Number of Facilities with Major Permits: 541 Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 CHLORINE, TOTAL RESIDUAL 7782505 4,040,592 8,907,981 4,338,035 POLYCHLORINATED BIPHENYLS ( PCBS) 1336363 47 105 1,349,922 COPPER, TOTAL ( AS CU) 7440508 535,839 1,181,324 740,574 CHLORINE, FREE AVAILABLE 7782505 381,299 840,620 409,367 BORON, TOTAL ( AS B) 7440428 1,027,638 2,265,555 401,491 ARSENIC, TOTAL ( AS AS) 7440382 48,125 106,098 368,090 LEAD, TOTAL ( AS PB) 7439921 46,186 101,823 228,083 MERCURY, TOTAL ( AS HG) 7439976 826 1,821 213,179 ARSENIC, TOTAL RECOVERABLE 7440382 13,408 29,559 102,550 NITROGEN, NITRATE TOTAL ( AS NO3) 14797558 702,810,979 1,549,432,968 96,065 COPPER TOTAL RECOVERABLE 7440508 55,607 122,593 76,854 ALUMINUM, TOTAL ( AS AL) 7429905 433,016 954,636 61,563 SILVER, TOTAL ( AS AG) 7440224 1,513 3,336 54,946 IRON, TOTAL ( AS FE) 7439896 3,136,320 6,914,403 38,721 ZINC, TOTAL ( AS ZN) 7440666 349,316 770,111 36,001 FLUORIDE, TOTAL ( AS F) 16984488 314,745 693,893 24,286 BORON, TOTAL RECOVERABLE 7440428 58,923 129,903 23,021 SELENIUM, TOTAL ( AS SE) 7782492 8,601 18,961 21,246 HYDRAZINE 302012 158,014 348,362 20,378 4 40 Table 4 7 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 dwcgi 9574 1072813752 958970000. wpd NICKEL, TOTAL ( AS NI) 7440020 81,729 180,182 19,624 LEAD TOTAL RECOVERABLE 7439921 3,278 7,227 16,189 ZINC TOTAL RECOVERABLE 7440666 154,289 340,150 15,901 SELENIUM, TOTAL RECOVERABLE 7782492 5,232 11,536 12,926 CHROMIUM, HEXAVALENT ( AS CR) 18540299 10,759 23,720 12,142 MERCURY TOTAL RECOVERABLE 7439976 43 95 11,128 ALUMINUM, TOTAL RECOVERABLE 7429905 67,854 149,592 9,647 CADMIUM, TOTAL ( AS CD) 7440439 1,205 2,657 6,939 IRON TOTAL RECOVERABLE 7439896 426,908 941,171 5,271 MANGANESE, TOTAL ( AS MN) 7439965 28,997 63,928 4,503 NITROGEN, AMMONIA TOTAL ( AS N)  7664417 459,002 1,011,926 1,852 SILVER TOTAL RECOVERABLE 7440224 49 108 1,774 CHROMIUM, TRIVALENT ( AS CR) 16065831 7,310 16,115 1,220 VANADIUM, TOTAL ( AS V) 7440622 702 1,547 963 MOLYBDENUM, TOTAL ( AS MO) 7439987 2,156 4,753 957 CYANIDE, TOTAL ( AS CN) 57125 364 802 864 SULFATE, TOTAL ( AS SO4) 14808798 65,271,805 143,899,697 806 NICKEL TOTAL RECOVERABLE 7440020 2,974 6,557 714 CHROMIUM, TOTAL ( AS CR) 7440473 4,265 9,403 712 CHROMIUM, HEXAVALENT DISSOLVED ( AS CR) 18540299 574 1,266 648 SULFIDE, TOTAL ( AS S) 18496258 94 208 583 CHLORIDE ( AS CL) 16887006 10,632,877 23,441,480 571 BORON, DISSOLVED ( AS B) 7440428 1,303 2,873 509 4 41 Table 4 7 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 dwcgi 9574 1072813752 958970000. wpd CADMIUM TOTAL RECOVERABLE 7440439 69 153 399 ZINC, DISSOLVED ( AS ZN) 7440666 3,868 8,527 399 BENZO( A) PYRENE 50328 0 0 393 BORIC ACID 10043353 285,651 629,752 378 SULFATE ( AS S) 14808798 29,643,661 65,353,085 366 ARSENIC, DISSOLVED ( AS AS) 7440382 33 73 252 BROMINE REPORTED AS THE ELEMENT 7726956 8,884 19,586 238 BARIUM, TOTAL ( AS BA) 7440393 52,431 115,591 230 MANGANESE, TOTAL RECOVERABLE 7439965 1,327 2,926 206 COPPER, POTENTIALLY DISSOLVED 7440508 140 309 193 COPPER, DISSOLVED ( AS CU) 7440508 103 228 143 CHROMIUM TOTAL RECOVERABLE 7440473 747 1,646 125 DIBENZO ( A, H) ANTHRACENE 53703 0 0 93 CYANIDE, TOTAL RECOVERABLE 57125 29 65 70 NITROGEN, NITRATE TOTAL ( AS N) 14797558 395,319 871,528 54 MAGNESIUM, DISSOLVED ( AS MG) 7439954 22,938 50,569 44 NICKEL, DISSOLVED ( AS NI) 7440020 169 373 41 MANGANESE, DISSOLVED ( AS MN) 7439965 223 491 35 BENZO( A) ANTHRACENE 56553 0 0 18 SULFATE, DISSOLVED ( AS SO4) 14808798 1,160,822 2,559,175 14 COBALT, TOTAL ( AS CO) 7440484 53 118 13 IRON, DISSOLVED ( AS FE) 7439896 938 2,068 12 CALCIUM, TOTAL ( AS CA) 7440702 158,051 348,442 10 4 42 Table 4 7 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 dwcgi 9574 1072813752 958970000. wpd MAGNESIUM, TOTAL ( AS MG) 7439954 4,388 9,674 8 ZINC, POTENTIALLY DISSOLVED 7440666 79 174 8 NITRITE PLUS NITRATE TOTAL 1 DET. ( AS N) 14797558 55,987 123,429 8 SODIUM, TOTAL ( AS NA) 7440235 536,373 1,182,499 6 PHENOLICS, TOTAL RECOVERABLE 999 97 215 6 AMMONIA ( AS N) + UNIONIZED AMMONIA 7664417 1,515 3,340 5 SELENIUM, DISSOLVED ( AS SE) 7782492 1 3 3 BENZO( K) FLUORANTHENE 207089 0 0 2 THALLIUM, TOTAL ( AS TL) 7440280 1 1 1 SODIUM, TOTAL RECOVERABLE 7440235 52,119 114,904 1 ANTIMONY, TOTAL ( AS SB) 7440360 54 120 1 BERYLLIUM, TOTAL RECOVERABLE ( AS BE) 7440417 0 0 < 1 VANADIUM, DISSOLVED ( AS V) 7440622 0 1 < 1 CARBON TETRACHLORIDE 56235 1 3 < 1 AMMONIA, UNIONIZED 7664417 99 219 < 1 CHRYSENE 218019 0 0 < 1 FLUORANTHENE 206440 0 0 < 1 TOLYTRIAZOLE 29385431 59 130 < 1 LITHIUM, TOTAL ( AS LI) 7439932 7 16 < 1 BERYLLIUM, TOTAL ( AS BE) 7440417 0 0 < 1 INDENO ( 1,2,3 CD) PYRENE 193395 0 0 < 1 ANTIMONY, TOTAL RECOVERABLE 7440360 13 28 < 1 BARIUM, TOTAL RECOVERABLE 7440393 21 46 < 1 4 43 Table 4 7 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 dwcgi 9574 1072813752 958970000. wpd TITANIUM, TOTAL RECOVERABLE 7440326 1 2 < 1 CHLOROFORM 67663 13 28 < 1 BENZO( GHI) PERYLENE 191242 0 0 < 1 PYRENE 129000 0 0 < 1 STRONTIUM, TOTAL ( AS SR) 7440246 951 2,098 < 1 POLY NUCLEAR AROMATICS ( POLYRAM) 9006422 1 1 < 1 TOLUENE 108883 1 2 < 1 BENZENE 71432 0 0 < 1 DICHLOROBROMOMETHANE 75274 0 0 < 1 XYLENES ( MIXED ISOMERS) 1330207 1 1 < 1 BENZENE & ETHYLBENZENE & TOLUENE & XYLENE 902 0 1 < 1 BROMOFORM 75252 1 2 < 1 ETHYL BENZENE 100414 0 0 < 1 DIMETHYLAMINE 124403 0 0 < 1 NAPHTHALENE 91203 0 0 < 1 ALKALINITY, TOTAL ( AS CACO3) 471341 253,993 559,959 BOD, 5 DAY ( 20 DEG. C) 466,311 1,028,039 BOD, CARBONACEOUS 05 DAY, 20C 15,571 34,329 CARBON, TOT ORGANIC ( TOC) 433,736 956,224 CHEMICAL OXYGEN DEMAND ( COD) 166,568 367,219 CHLORINE RATE 388,222 855,883 CHLORINE USAGE 331,120,337 729,995,377 DECHLORINATION REAGENT, GEN 15,421 33,998 4 44 Table 4 7 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 dwcgi 9574 1072813752 958970000. wpd FERROUS SULFATE 60,438 133,243 HARDNESS, TOTAL ( AS CACO3) 471341 1,633,845,796 3,602,013,367 HYDROCARBONS, PETROLEUM 26 58 HYDROCARBONS, IN H2O, IR, CC14 EXT. CHROMAT 5,562 12,263 IRON AND MANGANESE  SOLUBLE 358 789 METALS, TOTAL 189,437 417,637 NITROGEN, KJELDAHL TOTAL ( AS N) 17778880 23,292 51,349 NITROGEN, NITRITE TOTAL ( AS N) 14797650 998 2,200 NITROGEN, TOTAL ( AS N) 7727379 4,531,912 9,991,157 OIL & GREASE 2,135,550 4,708,082 OIL & GREASE ( FREON EXTR. IR METH) TOT, RC 63,012 138,918 OIL & GREASE ( SOXHLET EXTR.) TOT. 1,561,686 3,442,929 OIL & GREASE FREON EXTR GRAV METH 7,925,133 17,471,928 OIL & GREASE, HEXANE EXTR METHOD 192,623 424,661 OIL PETROLEUM, TOTAL RECOVERABLE 530 1,169 OXIDANTS, FREE AVAILABLE 1,071 2,361 OXIDANTS, TOTAL RESIDUAL 594,172 1,309,924 OXYGEN DEMAND, CHEM. ( HIGH LEVEL) ( COD) 23,553,863 51,927,379 OXYGEN DEMAND, CHEM. ( LOW LEVEL) ( COD) 43,092 95,001 OXYGEN, DISSOLVED ( DO) 40,935,471 90,247,264 PETROL HYDROCARBONS, TOTAL RECOVERABLE 24,730 54,521 PHOSPHATE, TOTAL COLOR. METHOD ( AS P) 14265442 384 847 PHOSPHOROUS, IN TOTAL ORTHOPHOSPHATE 14265442 2,754 6,071 4 45 Table 4 7 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 dwcgi 9574 1072813752 958970000. wpd PHOSPHORUS, TOTAL ( AS P) 2  7723140 715,099 1,576,524 RESIDUE, TOT FLTRBLE ( DRIED AT 105C) 1,617,994 3,567,067 SALINITY 170 376 SILICA, TOTAL ( AS SIO2) 7631869 2,322,120 5,119,398 SOLIDS, TOTAL DISSOLVED 2,627,317,988 5,792,244,615 SOLIDS, TOTAL DISSOLVED ( TDS) 286,591,130 631,825,282 SOLIDS, TOTAL DISSOLVED 180 DEG. C 187,713,314 413,837,014 SOLIDS, TOTAL NON VOLATILE, NON FIXED 120,327 265,275 SOLIDS, TOTAL SUSPENDED 161,151,684 355,278,645 SURFACTANTS ( MBAS) 101 104,898 231,260 VOLATILE FRACTION ORGANICS ( EPA 624) 30 67 VOLATILE ORGANICS DETECTED 21 47 WATER TREATMENT ADDITIVES 124 273 TOTAL 6,139,178,955 13,534,572,670 8,734,613 1 A blank represents a parameter that has no Toxic Weighting Factor.

2 A hyphen was used in front of the CAS number for elemental phosphorus to differentiate other forms of phosphorus from elemental phosphorus. 4 46 dwcgi 9574 1072813752 958970000. wpd Table 4 8 Summary of the Pollutants Discharged by the Pulp, Paper and Paperboard Point Source Category 40 CFR Part 430, SIC Codes: 2611, 2621, 2631 Number of Facilities with Major Permits: 254 Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 2,3,7,8 TETRACHLORODIBENZO P DIOXIN 1746016 0 0 7,165,331 DIOXIN 1746016 0 0 1,858,938 ALUMINUM, TOTAL RECOVERABLE 7429905 745,076 1,642,612 105,929 2,3,7,8 TETRACHLORODIBENZOFURAN 51207319 0 0 91,598 ALUMINUM, TOTAL ( AS AL) 7429905 578,903 1,276,262 82,304 CHLORINE, TOTAL RESIDUAL 7782505 29,363 64,734 31,524 NITROGEN, AMMONIA TOTAL ( AS N) 2  7664417 2,546,028 5,613,030 10,272 SULFIDE, TOTAL 18496258 1,309 2,886 8,082 SILVER, TOTAL ( AS AG) 7440224 197 435 7,169 CYANIDE, TOTAL ( AS CN) 57125 2,594 5,719 6,159 ARSENIC, TOTAL RECOVERABLE 7440382 750 1,653 5,735 LEAD TOTAL RECOVERABLE 7439921 1,052 2,319 5,195 MERCURY, TOTAL ( AS HG) 7439976 12 27 3,181 ZINC, TOTAL ( AS ZN) 7440666 28,311 62,415 2,918 COPPER TOTAL RECOVERABLE 7440508 1,939 4,274 2,679 COPPER, TOTAL ( AS CU) 7440508 1,783 3,931 2,464 ZINC TOTAL RECOVERABLE 7440666 18,885 41,633 1,946 ALUMINUM, DISSOLVED ( AS AL) 7429905 12,831 28,287 1,824 SELENIUM, TOTAL ( AS SE) 7782492 688 1,518 1,701 LEAD, TOTAL ( AS PB) 7439921 296 652 1,460 PCB 1242 ( AROCHLOR 1242) 53469219 0 0 1,355 CHROMIUM, HEXAVALENT DISSOLVED ( AS CR) 18540299 947 2,087 1,068 SULFATE, TOTAL ( AS SO4) 14808798 79,278,737 174,779,695 979 CYANIDE, FREE ( AMEN. TO CHLORINATION) 57125 259 571 615 NITROGEN, AMMONIA, TOTAL ( AS NH3) 7664417 181,837 400,881 603 Table 4 8 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 4 47 dwcgi 9574 1072813752 958970000. wpd MANGANESE, TOTAL RECOVERABLE 7439965 3,670 8,091 570 ARSENIC, DISSOLVED ( AS AS) 7440382 63 139 482 NICKEL, TOTAL ( AS NI) 7440020 2,000 4,410 480 COPPER, DISSOLVED ( AS CU) 7440508 341 751 471 ARSENIC, TOTAL ( AS AS) 7440382 60 131 455 IRON TOTAL RECOVERABLE 7439896 28,612 63,078 353 IRON, TOTAL ( AS FE) 7439896 24,779 54,628 306 MOLYBDENUM, TOTAL ( AS MO) 7439987 648 1,428 288 CHROMIUM, TOTAL ( AS CR) 7440473 1,638 3,612 273 AMMONIA ( AS N) + UNIONIZED AMMONIA 7664417 65,166 143,666 216 SILVER TOTAL RECOVERABLE 7440224 5 12 195 CHLORIDE ( AS CL) 16887006 2,417,003 5,328,580 130 ZINC, DISSOLVED ( AS ZN) 7440666 1,087 2,397 112 CADMIUM TOTAL RECOVERABLE 7440439 18 40 103 SULFATE ( AS S) 14808798 7,060,849 15,566,506 87 PHENOLS 999 1,390 3,064 86 MANGANESE, TOTAL ( AS MN) 7439965 542 1,194 84 PHENOLS, CHLORINATED 903 150 330 83 AMMONIA, UNIONIZED 7664417 17,655 38,923 59 NICKEL TOTAL RECOVERABLE 7440020 242 533 58 NITRITE PLUS NITRATE TOTAL 1 DET. ( AS N) 14797558 347,764 766,689 48 BORON, TOTAL ( AS B) 7440428 83 184 33 MERCURY TOTAL RECOVERABLE 7439976 0 0 32 NITROGEN, AMMONIA, TOT UNIONIZED ( AS N) 2  7664417 5,471 12,061 22 THALLIUM, TOTAL ( AS TL) 7440280 10 21 21 CADMIUM, TOTAL ( AS CD) 7440439 3 7 17 CHLOROFORM 67663 3,581 7,895 16 PHENOL, SINGLE COMPOUND 108952 254 561 16 Table 4 8 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 4 48 dwcgi 9574 1072813752 958970000. wpd 2,4,6 TRICHLOROPHENOL 88062 14 31 14 3,4,5 TRICHLORO CATECHOL 56961207 176 388 12 SELENIUM, TOTAL RECOVERABLE 7782492 5 10 11 PHENOLICS, TOTAL RECOVERABLE 999 181 399 11 CYANIDE, FREE WATER PLUS WASTEWATERS 57125 4 10 11 DI N BUTYL PHTHALATE 84742 407 898 10 NITROGEN, NITRATE TOTAL ( AS N) 14797558 76,541 168,744 10 BIS ( 2 ETHYLHEXYL) PHTHALATE 117817 42 93 9 TRICHLOROPHENOL 25167822 10 23 8 FORMALDEHYDE 50000 1,379 3,040 7 2,4 DIMETHYLPHENOL 105679 442 975 5 PHENOLIC COMPOUNDS, UNCHLORINATED 999 73 162 5 MAGNESIUM, DISSOLVED ( AS MG) 7439954 2,268 5,000 4 LEAD, DISSOLVED ( AS PB) 7439921 0 0 1 CHROMIUM TOTAL RECOVERABLE 7440473 5 11 1 BARIUM, TOTAL ( AS BA) 7440393 39 87 < 1 ANTIMONY, TOTAL ( AS SB) 7440360 11 24 < 1 NITROGEN, NITRATE TOTAL ( AS NO3) 14797558 711 1,567 < 1 BARIUM, DISSOLVED ( AS BA) 7440393 11 23 < 1 XYLENES ( MIXED ISOMERS) 1330207 4 8 < 1 CHROMIUM, DISSOLVED ( AS CR) 7440473 0 0 < 1 TOLUENE 108883 0 0 < 1 DICHLOROMETHANE 75092 0 0 < 1 BOD, 5 DAY ( 20 DEG. C) 143,500,587 316,364,637 BOD, CARBONACEOUS 05 DAY, 20C 5,956,410 13,131,637 BOD 5 785,095 1,730,839 BROMIDE ( AS BR) 24959679 2,739 6,038 CARBON, TOT ORGANIC ( TOC) 696,701 1,535,964 CHEMICAL OXYGEN DEMAND ( COD) 6,504,500 14,339,968 Table 4 8 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 4 49 dwcgi 9574 1072813752 958970000. wpd COLOR 46,669,469 102,888,566 DECHLORINATION REAGENT, GEN 89,646 197,636 DILUTION FACTOR 403 889 HALOGEN, TOTAL ORGANIC 584,590 1,288,801 HALOGENS, ADSORBABLEORGANIC 3,742,039 8,249,784 HARDNESS, TOTAL ( AS CACO3) 471341 30,494,800 67,229,526 HYDROCARBONS, IN H2O, IR, CC14 EXT. CHROMAT 620 1,367 NITROGEN, KJELDAHL TOTAL ( AS N) 17778880 2,178,376 4,802,496 NITROGEN, NITRITE TOTAL ( AS NO2) 14797650 1,013 2,234 NITROGEN, ORGANIC TOTAL ( AS N) 17778880 395,020 870,871 NITROGEN, TOTAL ( AS N) 7727379 2,000,243 4,409,781 OIL & GREASE 970,824 2,140,300 OIL & GREASE FREON EXTR GRAV METH 716,116 1,578,765 OIL & GREASE, HEXANE EXTR METHOD 27,401 60,410 ORGANIC HALIDES, TOTAL 256,702 565,931 OXIDANTS, TOTAL RESIDUAL 51 112 OXYGEN DEMAND, CHEM. ( HIGH LEVEL) ( COD) 8,489,643 18,716,459 OXYGEN DEMAND, CHEM. ( LOW LEVEL) ( COD) 27,348,958 60,294,130 OXYGEN DEMAND, ULTIMATE 3,582,789 7,898,698 OXYGEN, DISSOLVED ( DO) 73,953,617 163,039,816 PAPER PRODUCTION 579,727,539 1,278,080,434 PETROL HYDROCARBONS, TOTAL RECOVERABLE 1,603 3,534 PHOSPHATE, ORTHO ( AS P) 14265442 1,617 3,564 PHOSPHOROUS, IN TOTAL ORTHOPHOSPHATE 14265442 1,017 2,241 PHOSPHORUS, TOTAL ( AS P) 3  7723140 2,149,587 4,739,029 RESIDUE, TOT FLTRBLE ( DRIED AT 105C) 61,926,309 136,524,140 RESIN ACIDS, TOTAL 34,451 75,952 Table 4 8 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 4 50 dwcgi 9574 1072813752 958970000. wpd SOLIDS, TOTAL DISSOLVED 366,515,598 808,028,570 SOLIDS, TOTAL DISSOLVED 180 DEG. C 489,000 1,078,060 SOLIDS, TOTAL SUSPENDED 234,464,085 516,904,822 SULFITE ( AS SO3) 14265453 32,544 71,748 SURFACTANTS ( MBAS) 101 5,957 13,134 SUSPENDED SOLIDS 331,700 731,274 TOTAL PURGEABLE HALOCARBONS 1,735 3,826 TOTAL 1,698,128,302 3,743,732,032 9,406,253 1A blank represents a parameter that has no Toxic Weighting Factor. 2A hyphen was used in front of the CAS number for Ammonia to differentiate between Ammonia expressed as NH3 and as N. 3A hyphen was used in front of the CAS number for elemental phosphorus to differentiate other forms of phosphorus from elemental phosphorus. 4 51 dwcgi 9574 1072813752 958970000. wpd Table 4 9 Summary of the Pollutants Discharged by the Inorganic Chemicals Point Source Category 40 CFR Part 415, SIC Codes: 2812, 2813, 2816, 2819 Number of Facilities with Major Permits: 97 Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 MERCURY, TOTAL ( AS HG) 7439976 1,665 3,671 429,818 METHOXYCHLOR 72435 408 900 168,804 CHLORINE, TOTAL RESIDUAL 7782505 100,692 221,988 108,104 FLUORIDE, TOTAL ( AS F) 16984488 1,066,040 2,350,215 82,258 SULFIDE, TOTAL ( AS S) 18496258 11,627 25,634 71,789 IRON, DISSOLVED ( AS FE) 7439896 5,748,426 12,673,109 70,969 BENZO( A) PYRENE 50328 5 12 50,109 LEAD, TOTAL ( AS PB) 7439921 8,399 18,517 41,479 ALUMINUM, TOTAL RECOVERABLE 7429905 219,369 483,625 31,188 ALUMINUM, TOTAL ( AS AL) 7429905 163,570 360,609 23,255 CHLORIDE ( AS CL) 16887006 178,606,569 393,760,079 9,587 BENZO( B) FLUORANTHENE ( 3,4 BENZO) 205992 5 12 4,929 COPPER, TOTAL ( AS CU) 7440508 3,330 7,340 4,602 IRON TOTAL RECOVERABLE 7439896 191,562 422,323 2,365 BENZO( A) ANTHRACENE 56553 5 12 2,117 MERCURY TOTAL RECOVERABLE 7439976 7 15 1,780 BHC 58899 17 38 1,778 NICKEL, TOTAL ( AS NI) 7440020 7,091 15,634 1,703 CHROMIUM, TOTAL ( AS CR) 7440473 10,072 22,204 1,680 NITROGEN, AMMONIA TOTAL ( AS N) 2  7664417 380,188 838,172 1,534 ARSENIC, TOTAL ( AS AS) 7440382 177 391 1,356 CYANIDE, TOTAL ( AS CN) 57125 529 1,166 1,255 CADMIUM, TOTAL ( AS CD) 7440439 216 475 1,242 SILVER, TOTAL ( AS AG) 7440224 27 60 989 MANGANESE, TOTAL ( AS MN) 7439965 6,245 13,767 970 COPPER TOTAL RECOVERABLE 7440508 674 1,486 932 ZINC, TOTAL ( AS ZN) 7440666 7,310 16,115 753 VANADIUM, TOTAL ( AS V) 7440622 494 1,089 678 BENZO( K) FLUORANTHENE 207089 5 11 478 POLYCHLORINATED BIPHENYLS ( PCBS) 1336363 0 0 455 Table 4 9 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 4 52 dwcgi 9574 1072813752 958970000. wpd SILVER TOTAL RECOVERABLE 7440224 10 22 357 SULFATE, TOTAL ( AS SO4) 14808798 26,384,534 58,167,940 326 SELENIUM, TOTAL ( AS SE) 7782492 110 243 273 ZINC TOTAL RECOVERABLE 7440666 2,183 4,812 225 CADMIUM TOTAL RECOVERABLE 7440439 33 72 188 CHROMIUM TOTAL RECOVERABLE 7440473 1,056 2,329 176 MOLYBDENUM, TOTAL ( AS MO) 7439987 371 818 165 SODIUM, TOTAL ( AS NA) 7440235 12,333,635 27,191,010 149 CARBON TETRACHLORIDE 56235 311 686 88 CARBON DISULFIDE 75150 14 31 86 NICKEL TOTAL RECOVERABLE 7440020 332 733 80 IRON, TOTAL ( AS FE) 7439896 4,564 10,061 56 ACRYLONITRILE 107131 29 65 55 NITROGEN, NITRATE TOTAL ( AS N) 14797558 255,728 563,784 35 ANTHRACENE 120127 5 12 30 BARIUM, DISSOLVED ( AS BA) 7440393 5,935 13,084 26 CHRYSENE 218019 5 11 24 PHENOL, SINGLE COMPOUND 108952 386 851 24 CYANIDE, FREE ( AMEN. TO CHLORINATION) 57125 10 22 24 MANGANESE, TOTAL RECOVERABLE 7439965 139 306 22 CHROMIUM, HEXAVALENT TOT RECOVERABLE 18540299 17 37 19 BARIUM, TOTAL RECOVERABLE 7440393 4,254 9,379 19 FLUORENE 86737 12 26 19 LITHIUM, TOTAL ( AS LI) 7439932 606 1,337 16 CHROMIUM, HEXAVALENT ( AS CR) 18540299 14 31 16 FLUORANTHENE 206440 7 15 12 TITANIUM, TOTAL ( AS TI) 7440326 147 325 10 HEXACHLOROBUTADIENE 87683 5 12 7 LEAD TOTAL RECOVERABLE 7439921 1 3 7 TRICHLOROBENZENE 12002481 11 25 6 BENZENE 71432 113 249 5 1,2 DICHLOROETHANE, TOTAL WEIGHT 107062 257 567 4 PHENANTHRENE 85018 5 12 3 NITRITE PLUS NITRATE TOTAL 1 DET. ( AS N) 14797558 22,983 50,668 3 Table 4 9 ( Continued)

Parameter CAS# Discharge ( kg/ yr) Discharge ( lbs/ yr) Toxic Equivalents ( tox lbs/ yr) 1 4 53 dwcgi 9574 1072813752 958970000. wpd BARIUM, TOTAL ( AS BA) 7440393 616 1,358 3 TETRACHLOROBENZENE 634662 67 148 3 VINYL CHLORIDE 75014 10 21 2 1,3 DICHLOROPROPENE, TOTAL WEIGHT 542756 2 4 2 COBALT, TOTAL ( AS CO) 7440484 8 17 2 PHENOLS 999 30 66 2 PHENOLICS, TOTAL RECOVERABLE 999 29 63 2 DICHLOROBROMOMETHANE 75274 11 23 2 AMMONIA, UNIONIZED 7664417 427 940 1 PYRENE 129000 5 12 1 1,1,1 TRICHLOROETHANE 71556 129 285 1 CHLOROFORM 67663 275 605 1 BIS ( 2 ETHYLHEXYL) PHTHALATE 117817 6 13 1 ANTIMONY, TOTAL ( AS SB) 7440360 107 237 1 VINYLIDENE CHLORIDE ( 1,1 DICHLOROETHENE) 75354 3 6 1 4,6 DINITRO O CRESOL 534521 7 16 1 TRICHLOROFLUOROMETHANE 75694 438 965 1 1,2,4 TRICHLOROBENZENE 120821 5 11 1 1,4 DICHLOROBENZENE 106467 5 11 1 HEXACHLOROETHANE 67721 5 12 1 4 NITROPHENOL 100027 27 59 1 ACENAPHTHENE 83329 7 16 < 1 CHLORODIBROMOMETHANE 124481 2 4 < 1 2,4 DINITROPHENOL 51285 27 59 < 1 NAPHTHALENE 91203 7 15 < 1 ACENAPHTHYLENE 208968 12 27 < 1 TETRACHLOROETHYLENE 127184 8 17 < 1 TRICHLOROETHYLENE 79016 11 24 < 1 DI N BUTYL PHTHALATE 84742 5 12 < 1 1,3 DICHLOROBENZENE 541731 5 11 < 1 1,1,2,2 TETRACHLOROETHANE 79345 1 2 < 1 1,2 DICHLOROBENZENE 95501 5 11 < 1 1,1,2 TRICHLOROETHANE 79005 3 8 < 1 1,2 DICHLOROPROPANE 78875 2 4 < 1 Table 4 9 ( Continued)