PUBLIC HEALTH ASSESSMENT
GEORGIA-PACIFIC CORPORATION HARDWOOD SAWMILL
PLYMOUTH, WASHINGTON COUNTY, NORTH CAROLINA
The Georgia-Pacific Corporation Hardwood Sawmill site is comprised of approximately 24 acres along the Roanoke River in Plymouth, Washington County, North Carolina. The site is located one quarter of a mile east of the downtown area of Plymouth and has an estimated population of 400 people residing in the area surrounding the site. The nearest off-site residence is located 800 feet east of the facility. Atlas Plywood Company owned the property before 1950.
Georgia-Pacific Corporation Hardwood Sawmill produced and treated hardwood lumber and railroad ties at the site from 1950 until1983. In 1983, the facility burned and was permanently closed. The property was deeded to Decatur Partnerships by the Georgia-Pacific Corporation on January 2, 1985. Hazardous waste disposal practices while the site was in operation are unknown. The sawmill was served by an on-site production well and septic system during the period of operation and employed seventy-five workers.
Former workers and trespassers were likely exposed to contaminants in on-site soil by incidental ingestion, dermal contact and inhalation.
Chemical and physical hazards on site have been removed through the Removal Action conducted by the EPA. The removal action data collected at the site was evaluated and no significant levels of contamination expected to cause adverse health effects were detected in the soil.
Based upon available data reviewed and observations made, the Georgia-Pacific Hardwood Sawmill
Superfund Site is currently categorized by the Agency for Toxic Substances and Disease Registry
(ATSDR) as a No Apparent Public Health Hazard. The current completed exposure pathway is
off-site biota 
through recreational fishing in the Roanoke River. Fish tested showed elevated levels
of dioxin. A fish consumption advisory is in effect along the river. Past exposures occurred on-site
to former workers and trespassers via contact with contaminated soil containing metals, pesticides,
volatile organics, semi-volatile organics and dioxin. The contaminated soil 0" - 6" was removed
during a post soil removal action by the EPA in June of 2000. The data does not indicate that
humans have been exposed to levels of contamination on-site that would be expected to cause adverse health effects.
In this public health assessment, The Agency for Toxic Substances and Disease Registry (ATSDR), evaluates the public health significance of the formerly proposed Georgia-Pacific Corporation Hardwood Sawmill National Priorities List (NPL) site in Plymouth, North Carolina. ATSDR has reviewed available environmental and health outcome data and community health concerns to determine whether adverse health effects are possible. In addition, this public health assessment recommends actions to reduce, prevent, or identify more clearly the possibility for site-related adverse health effects. ATSDR, in Atlanta, Georgia is one of the agencies of the U.S. Public Health Service. The Superfund law (Comprehensive Environmental Response, Compensation, and Liability Act of 1980 [CERCLA] as amended by the Superfund Amendments and Reauthorization Act of 1986 [SARA]) requires ATSDR to conduct public health assessments of hazardous waste sites within 1 year of the site's proposal for the NPL.
A. Site Description and History
The Georgia-Pacific Corporation Hardwood Sawmill site comprises approximately 24 acres along the Roanoke River in Plymouth, Washington County, North Carolina. The site is located one quarter of a mile east of the downtown area of Plymouth, and has a estimated population of 400 people residing in the area surrounding the site. The Plymouth High School is located 0.27 mile south of the site. The nearest off-site residence is located 800 feet east of the facility.
Atlas Plywood Company owned the property before 1950. Georgia-Pacific Corporation Hardwood Sawmill produced and treated hardwood lumber and railroad ties at the site from 1950 until 1983 (1). In 1983, the facility burned and was permanently closed. The property was deeded to Decatur Partnerships by the Georgia-Pacific corporation on January 2, 1985. Hazardous waste disposal practices at the site while in operation are unknown. The sawmill was served by an on-site production well and septic system during the period of operation and employed seventy-five workers (2). Drinking water from the on-site production well was not consumed by workers while the site was operational. Decatur Partnerships leased a portion of the site to an asphalt mixing company which ceased operation in June 1995. The site is presently unoccupied.
Wood preserving operations at the facility consisted of passing wood along a conveyor belt and through a dip vat. The dip vat contained a mixture of wood treatment chemicals and pesticides. When wood passed through the dip vat any excess preservative on the finished wood spilled to the ground in the vicinity of the conveyor. The contaminated soil was periodically burned in the on-site boilers (2).
The following is a record of investigations conducted at the site:
* December 1985, preliminary assessment conducted by NC Division of Health
Services,
* October 1989, Phase I Screening Site Inspection completed by NUS Corporation,
* September 1991, Greenhorne & O'Mara , Inc. Conducted a Phase II Screening
Site Inspection,
* April 1994, Dynamac Corporation conducted a Site Inspection Prioritization
, and
* June 1995, the NC Department of Environment, and Natural Resources (NCDENR)
conducted an expanded site inspection (ESI) at the facility.
Soil samples collected from the dip vat area during the ESI contained metals, lindane, polychlorinated biphenyls, dioxins, furans, pentachlorophenol, and pyrene at elevated concentrations (1). Sediment samples collected in the Roanoke River during the ESI contained elevated concentrations of metals, dioxins, furans, pentachlorophenol, and lindane, compared with background samples taken one mile upstream. Dioxins were detected in sediment samples collected and analyzed during the ESI and RI.. The background samples were taken during a concurrent NCDENR inspection of a Weyerhaeuser Corporation facility. The river is commercially and recreationally fished from Plymouth, NC, to Albermarle Sound (1).
The EPA conducted a public availability meeting and interviewed citizens in Plymouth, NC on May 25-29, 1998 (3). The majority of the people were aware of the City's plan for eco-tourism and redevelopment of the site. Some people remembered when the site operated, but did not recall any problems associated with the site. ATSDR representatives attempted to answer questions concerning the potential health threat the site posed to the Roanoke River.
Representatives from ATSDR and EPA conducted site visits on June 29-30, 1999 (4). Access to the former Georgia-Pacific facility from Plywood Road is restricted by a gate with a "no trespassing" sign posted. No property boundary fences were identified during the site visit.
C. Demographics, Land Use, and Natural Resource Use
The approximate population living within one mile of the site is 2,531 residents. The entire population of Plymouth totaled 4,314 as of the 1997 Claritas Survey (3). The racial mixture in the city of Plymouth, NC, is 2,448 Black; 1,814 White; 22 Asian; 29 Hispanic; 1 other nationality (5).
Industries in the Plymouth area include: Weyerhaeuser Paper Company, Mackey's Ferry Sawmill, Yamato Lumber, Plymouth Fertilizer Company, Plymouth Garment, Plymouth Pallet, Smith Brother Chemical Company, and Tyson Carolina (3). Drinking water is provided via the city's municipal water system.
ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS
ATSDR has evaluated all of the available environmental monitoring data to determine what environmental contaminants and which specific areas on the site may be a concern. ATDSR used comparison values to determine which contaminants and areas should be examined more closely. Comparison values (CV) are health-based thresholds below which no known or anticipated adverse effect on the health of persons should occur. The values allow an adequate margin of safety. The contaminant tables in this section identify the comparison values for each contaminant. Appendix A contains a description of the comparison values used in this Public Health Assessment.
A contaminant is evaluated further if the contaminant level in a valid environmental sample exceeds comparison values. The presence of a chemical in the contaminant tables does not mean that exposures to the contaminant or adverse health effects have occurred or will occur. Later sections of this Public Health Assessment contain more detailed discussions of the potential for adverse human health effects as a result of any exposures to the known contaminants of concern.
This document focuses on those contaminants which pose a reasonable potential for human exposure.
In 1999, EPA collected soil samples (0"-6") on-site and analyzed for metals, pesticides, volatile and semi-volatile organic contaminants and dioxin. (TCDD). Forty chemicals were detected in surface soil and 10 were detected in the stockpile area. The chemicals detected, in the surface soil and in the stockpile area had at least one concentration above the CV. These chemicals are identified in Tables 1-4, Appendix C. Those chemicals above the CV are evaluated further in the Pathways Analysis section. An on-site production well was in service during the site's operational period. Water from the on-site production well was reportedly not consumed by workers while the site was operational.
EPA sampled off-site surface soil in 1999 and collected eight samples from residential yards and 10 from the ball fields and the school south of the site. Elevated levels above the comparison value were identified in two samplings. The sample located at the boy scouts center south of the site contained pentachlorophenol at 2.4 parts per million (ppm). Lead at 467 ppm was detected at a home in the residential area ( 7).
Analytical results from surface water and sediment samples did not find any contaminants above comparisons values (CVs).
The Roanoke River, Chowan River/HWY 17, and Albemarle Sound fish study found elevated dioxin levels in fish along the Roanoke River (17). A fish consumption advisory based on the dioxin study was issued and includes a 15-mile section of the river. The study found levels from non-detect to 16.5 parts per trillion (ppt) in all species of fish.
The main access to the former Georgia-Pacific facility from Plywood Road is restricted by a gate with a "no trespassing" sign posted. No property boundary fences were identified during the site visit. The site is surrounded by thick swampy woodlands on the southern border, dense woodlands on the east and west borders and the Roanoke River to the north. The EPA Emergency Response and Removal Branch has completed removal of all buildings on the site.
This section presents evaluations of the possible environmental pathways that help determine whether individuals have been, are being, or will be exposed to site-related contaminants. Environmental pathways can be completed or potential. A completed pathway indicates that human exposure to contaminants has occurred in the past or is occurring (8). A potential exposure pathway indicates that human exposure to contaminants could have occurred in the past, could be occurring, or could occur in the future. An exposure pathway that is not completed indicates that human exposure did not occur during that time period. An exposure pathway can be eliminated from consideration if exposure has never occurred and never will occur. If there is uncertainty about how the contaminants of concern are related to the site in an exposure pathway, the pathway will be evaluated as if the contaminants were related.
A. Completed and Potential Exposure Pathways On-Site
Completed On-Site Soil Exposure Pathway
Table 1 (Appendix D) lists the components of the Georgia-Pacific site, with soil being the only completed environmental pathway. This pathway is considered complete because exposure to chemicals at levels above the comparision value occurred in the past to workers and trespassers from contact with contaminated soil when the site was operational. Metals, pesticides, volatile organics, semi-volatile organics and dioxin (TCDD) are the contaminants found in the soil. The possible health impact of this completed exposure pathway is evaluated in the Public Health Implications section.
B. Completed Exposure Pathways Off-Site
Completed Off-Site Biota Exposure Pathway
Table 2 (Appendix D) lists the components of the completed environmental exposure pathway and the estimated number of individuals in that pathway. Data samples collected from the Roanoke River showed elevated levels of dioxin in fish. Biota is a completed pathway because of the recreational activities on the Roanoke River such as fishing. A fish consumption advisory has been in effect along the river since 1996. The completed exposure pathway will be further evaluated when more data becomes available.
Potential Off-Site Surface Soil Exposure Pathway
Table 2 (Appendix D) lists the components of the potential environmental exposure pathway and the estimated number of individuals in that pathway. Surface soil sampling of off-site data showed elevated levels of contaminants in two areas sampled. It is possible for people to have been exposed to the contaminants found in the residential area and the boy scouts center via incidental ingestion, inhalation, or dermal contact during recreational activities which may have resulted in disturbing of the soil.
C. Not Completed On-site and Off-site Pathways
Not Completed On-Site Ground Water Exposure Pathway
On-site ground water is considered a "not completed" pathway because ground water from the site was not used for drinking by the workers while the site was operational. Therefore it is unlikely that people could have been exposed to any "site related" contaminants via this pathway.
Not Completed Off-Site Ground Water Exposure Pathway
The majority of the residents in the vicinity of the former Georgia-Pacific facility are served by the municipal water system which is located approximately 1.5 miles from the site. The nearest residential well is located approximately 1.3 miles from the site. It is unlikely that site related contaminants could enter these wells and thereby expose residents to ground water contamination if it is present.
Not Completed Off-Site Surface Water and Sediment Exposure Pathway
Off-site surface water and sediment pathways are considered "not completed"pathways because contaminants detected in the media were not above the comparisons values (CVs).
This section contains information on the contaminants to which certain people have been, are, or may become exposed and that may cause adverse health effects. Although the relative toxicity of a chemical is important, the response of the human body to chemical exposure is actually determined by several additional factors, including the magnitude of exposure (how much), the duration of exposure (how long), and the route of exposure (i.e., breathing, eating, drinking, or skin contact). Lifestyle factors (i.e., occupation and personal habits) have a major impact on the likelihood, magnitude, and duration of exposure. In addition, individual characteristics such as age, sex, nutritional status, overall health, and genetic constitution affect how a contaminant is absorbed, distributed, metabolized, and eliminated from the body. Accordingly, the probability that exposure-related adverse outcomes will actually occur does not depend solely on concentrations in environmental media.
From evaluations of metal contaminants above the comparisons values (Tables 1, 2 and 3) and exposure pathways (Tables 1 and 2), ATSDR determined that exposures to several contaminants to on-site workers, and residents off site warranted more detailed toxicological evaluation and discussion in this section. Air quality data pertinent to Georgia Pacific's operations are not available, so inhalation exposure could not be evaluated; also, preliminary sampling data indicate that soil contaminants and associated potential exposures may extend beyond the site onto adjacent properties.
Past Exposures: Former workers
The former workers are assumed to have been on site five days a week, 50 weeks per year, for 30 years, and to have ingested 50 milligrams of soil or stockpile material a day. There were two main exposure scenarios for the former workers at the site who might have accidentally ingested small amounts of contaminated soils and tar/soil mixture of stockpile.
One exposure scenario involves plant workers who were likely to have been accidentally exposed occasionally to arsenic, chromium, copper, lead, polyaromatichydrocarbons ( PAHs) and pesticides through ingestion of, and skin contact with, contaminated soils on site (Tables 1 and 2). This exposure would have been added to that from process air emissions, which cannot be evaluated because relevant data are not available. The amounts of arsenic, chromium, copper, pesticides and PAHs this group of workers were potentially exposed to are below levels known to cause adverse health effects (9,10, 11,12,13,14,15).
The highest level of lead the group of workers were probably exposed to is below the 400 ppm screening value of lead in soil as proposed by the EPA Superfund screening value.
The other exposure scenario is associated with former workers who worked close to the ground. This group of former workers were likely exposed to metals, PAHs and pesticides in surface soil (Tables 1 and 2), as well as several PAHs in soil/tar stockpile material on site (Table 3). Health studies have provided little insight about the health effects resulting from human exposure to multiple contaminants in soil. However, our evaluation indicates that the levels of individual contaminants this group of workers were possibly exposed to in soil and soil/stockpile material on site are below levels known to cause adverse health effects (9,10,12,13,14,15).
Current Exposures: Fish Eaters
Residents who ate fish from the Roanoke River were exposed to dioxins and furans in fish tissue (17). Levels of 2,3,7,8- and total- tetrachlorinated dioxins (TCDDs) and furans (TCDFs) were measured in several game fish and catfish species from several locations along the Roanoke River basin. The concentrations of the dioxins and furans were totaled and reported as dioxin toxicity equivalent quotient (TEQ), which are measured in parts per trillion (ppt). Each dioxin and furan congener represented the potential toxicity of 2,3,7,8- TCDD. The TEQs reported for fish from the Roanoke River, therefore, represents the concentrations of 2,3,7,8- TCDD and 2,3,7,8- TCDF.
The levels of TCDD in fish fillets ranged from non-detect to 16.5 (ppt). The highest level of TCDD detected in fish fillets is lower than levels known to cause adverse health effects (16). That level is also lower than the Food and Drug Administration's (FDA's) 25 ppt level of concern. Moreover, all of the TEQs in fish at the site were below TEQs in some 200 fish samples reported by the EPA in a national fish survey. Although we do not know the plasma TCDD lipid levels of residents who eat fish from the Roanoke River, the plasma TCDD lipid levels of Swedish fishermen who consumed baltic salmon containing 30-90 TEQs daily, had plasma lipid TCDD levels well within the range reported for the American population. Although a few catfish samples had TEQs above the North Carolina 3 ppt advisory level for fish consumption, the overall TEQs have remained below advisory level. The site records and information indicate that TEQ concentrations have continued to decline. The highest dioxin amount of ingested by residents is some 3,000 times lower that caused no observed adverse effects in animal primates after four years of long-term exposure to dioxin. The EPA, the International Agency for Research on Cancer (IARC) and the Department of Health and Human Services (DHHS) consider TCDD to be a human carcinogen based on animal studies (16). However, residents are unlikely to develop excess cancer because of exposure to the low levels of TCDD in fish fillets.
Residents in Nearby Homes and Institutions
Preliminary samplings of off-site surface soils located adjacent to the site detected 467 parts per million (ppm) lead in residential soil and 2.4 (ppm) pentachlorophenol at a Boy Scouts Center. According to EPA officials, comprehensive soil data for off-site areas will soon be available for inclusion into this document. The preliminary data indicate that site-related contaminants may have migrated to off-site areas. Contaminants can migrate or move from one location to another by rain, melting snow, ice or wind. However, the level of lead detected in soil from one residential yard, is below levels that have been shown to cause adverse health effects (12). The amounts of pentachlorophenol ingested by adults and soil pica children (children that have contact with soil via hand to mouth contact) play are some 13 to 8,000 times lower than ATSDR's maximum risk levels( MRLs) or EPA's reference dose (RfD). While these levels of exposure are not likely to cause adverse health effects for adults and children, this evaluation is based on limited preliminary information only. ATSDR will re-evaluate current exposure to contaminants in residential soil when the comprehensive off-site soil data is available.
B. Health Outcome Data Evaluation
The state does not compile health outcome data for the specific groups of potentially affected populations being evaluated in this assessment (e.g., people on and near the site). Hence, site-specific health outcomes cannot be evaluated from the available data.
During ATSDR's public availability meeting on March 2, 2000, the following health concerns were posed:
*Are the pollutants affecting the fish in the river (3)?
Response: Yes, the North Carolina State Health Department recommended a fish consumption advisory along a 15-mile area of the Roanoke River. However, the levels of dioxins detected in fish fillets is lower than levels known to cause adverse health effects.
*What are the pollutants found in the river (3)?
Response: Elevated levels of dioxin were found in fish tissue. Dioxin is created when materials are manufactured such as paper products, disinfectants and certain pesticides. Dioxins are also created when materials are burned at low temperatures such as chemical products, leaded gasoline, plastic, wood, and paper (6).
*Will the wetland ditch area surrounding the site be cleaned-up?
Response: The wetland ditch area will be cleaned if environmental testing shows that contaminates have reached the area.
The responses were those provided by ATSDR.
Site Characterization Recommendations:
ATSDR concurs with the on going comprehensive study of the Roanoke River basin to further characterize fish, surface water and river bank soils. ATSDR will consider amending this section if pertinent information arises during the document review process:
ATSDR's Child Health Initiative recognizes that the unique vulnerabilities of infants and children demand special emphasis in communities faced with contamination of their water, soil, air, or food. Children are at greater risk than adults from certain kinds of exposures to hazardous substances emitted from waste sites and emergency events. They are more likely to be exposed because they play outdoors and they often bring food into contaminated areas. They are more likely to come into contact with dust, soil, and heavy vapors close to the ground. Also, they receive higher doses of chemical exposure due to lower body weights. The developing body systems of children can sustain permanent damage if toxic exposures occur during critical growth stages.
Evaluations have not identified specific child health issues associated with this site. In the event that the planned land use for a eco-tourism and history development center changes, and the site is developed for residential use, child health issues should be re-evaluated.
The Public Health Assessment (PHA) for the Georgia-Pacific Corporation Hardwood Sawmill site was made available for public review and comment on November 24, 2000, at the repository in the Washington County Library in Plymouth, North Carolina. The release of the PHA was announced in the Roanoke-Beacon and Washington Daily News papers. The comment period ended on December 26, 2000. ATSDR did not receive any comments.
A major purpose of a public health assessment is the identification of the actions needed to protect public health, evaluate whether exposure is occurring or could occur, or identify whether there are site-related health effects.
The following have been identified:
Completed Public Health Actions
Planned Public Health Actions
Wayne Hall, MPH
Environmental Health Scientist
Superfund Site Assessment Branch
Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry
Moses Kapu, Ph.D.
Environmental Health Scientist
Superfund Site Assessment Branch
Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry
Steve Blackwell
Health Education Specialist
Division of Health Education and Promotion
Agency for Toxic Substances and Disease Registry
Lafreta Dalton
Community Involvement Specialist
Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry
Bob Safay
Regional Representative
ATSDR Region IV
Regional Operations
Health Comparison Values
Comparison Values (CVs) are contaminated concentrations found in specific media (air, soil, or water) and used to select contaminants for further evaluation. They are not intended to be used as clean-up levels or indicators of public health effects. Comparison Values are derived from toxicological information, using assumptions regarding body weights, ingestion rates, and exposure frequency and duration. The assumptions are generally very conservative (i.e., worst case). The CVs used in this document are listed below.
Cancer Risk Evaluation Guidelines (CREGs) are estimated contaminant concentrations that would be expected to cause no more than one excess cancer in a million persons exposed over a lifetime. CREGS are calculated from EPA's cancer slope factors(CFS).
Environmental Media Evaluation Guide (EMEGs) are estimated contaminant concentrations in media where there is no chance for non-carcinogenic health effects to occur. The EMEG is derived from U.S. Agency for Toxic Substances and Disease Registry's (ATSDR) minimal risk level (MRL).
EPA Soil Screening Levels (EPA SSL) are estimated contaminant concentrations in soil where additional evaluation is needed to determine if action is needed to eliminate or reduce exposure.
Figure 2. Demographic Statistics
Table 1 - Metal Contaminants Detected in On-site Surface Soil (0"-6") Samples, Above the Comparison Value for the Georgia -Pacific HRDW Sawmill National Priorities List,Plymouth, North Carolina
| Contaminant |
Concentration Range (mg/kg)
|
Source (CV) | Cancer Class | |
| Minimum | Maximum | |||
| Arsenic | 20 | 79.3 | CREG (0.5) | A |
| Lead | 400 | 467 | EPA (400) | B2 |
| Chromium | 130 | 191 | RMEG (300) | A |
| Copper | 8.9 | 1,660 | None | |
Table 2 - Pesticides, Contaminants Detected in On-site Surface
Soil (0"-6") , Above the Comparison Value for the Georgia -Pacific HRDW Sawmill
National Priorities List Site, Plymouth, North Carolina
| Contaminant |
Concentration Range (mg/kg)
|
Source (CV) | Cancer Class | |
| Minimum | Maximum | |||
| Methylnaphthalene | 5.3 | None | ||
| Alpha-BHC | 0.5 | 55 | CREG (0.1) | B2 |
| Lindane | 0.02 | 130 | EMEG (0.02) | |
| Aroclor | 0.001 | 0.6 | CREG (0.4) | B2 |
| Pentachlorophenol | 2 | 24 | CREG (6) | B2 |
Table 3 - Semi-Volatile Organic Compound Contaminants Detected
in Stockpile onsite Surface Soil (0"-6"), Above the Comparison Value for the
Georgia-Pacific HRDW Sawmill, National Priorities List Site, Plymouth, North
Carolina
| Contaminant |
Concentration Range (mg/kg)
|
Source (CV) | Cancer Class | |
| Minimum | Maximum | |||
| Benzo(g,h,i,)perylene | ND | 0.0044 | None | |
| Benzo(a)pyrene | ND | 0.63 | CREG (0.1) | B2 |
| Benzo(a)pyrene equivalent | ND | 0.8458 | CREG (0.1) | B2 |
Table 4 - Dioxin/Furan Contaminants Detected in onsite Surface
Soil (0"-6"), Above the Comparison Value for the Georgia-Pacific HRDW Sawmill,
National Priorities List Site, Plymouth, North Carolina
| Contaminant |
Concentration Range (ng/kg)
|
Source (CV) | Cancer Class | |
| Minimum | Maximum | |||
| 2,3,7,8 Tetrachlorodibenzodioxin | 19 | 2,200 | None | |
| TEQ(Toxic.Equiv,Value, From 1-TEF/89) | 550 | 370,000 | CREG (0.1) | B2 |
SOURCES
CREG- Cancer Risk Evaluation Guidelines
RMEG- Reference Dose Media Evaluation Guide
EMEG- Environmental Media Evaluation Guide
CANCER CLASS
A Human carcinogen
B2 Sufficient evidence of carcinogenicity in animals, but inadequate
evidence or no data from epidemiologic studies
APPENDIX D: EXPOSURE PATHWAY TABLES
TABLE 1. EXPOSURE
AND DEMOGRAPHIC STRUCTURE FILE - Past Completed Exposure Pathway Table - ON
SITE DOCUMENT NAME__Georgia Pacific HDW._____ SEGMENT NAME
(If applicable)____________________DOCUMENT
DATE_01/15/00
| Pathway Name: | Source | Medium | Exposure Point |
Exposure Route | Receptor Population | Time of Exposure | Exposure Activities | Estimated Number Exposed | Chemicals |
| On-Site Soil | Georgia Pacific | Soil | Operational Area | Ingestion Inhalation & Dermal | On-Site Workers and Trespassers | Past | Ingestion of soil on site | 100* | See tables 1,2,3 |
TABLE 2. EXPOSURE AND DEMOGRAPHIC STRUCTURE FILE - Completed
Exposure Pathway Table - OFF- SITE
DOCUMENT NAME__Georgia Pacific HWD._____ SEGMENT NAME (If applicable)____________________DOCUMENT
DATE_01/15/00
| Pathway Name: | Source | Medium | Exposure Point | Exposure Route | Receptor Population | Time of Exposure | Exposure Activities | Estimated Number Exposed | Chemicals |
| Off-Site Biota | Roanoke River | Surface Water | Roanoke River | Ingestion | People eating fish from the river | Past , Present, Future |
Consumption of fish | Unknown | Dioxin |
| Off-Site Soil | Georgia Pacific | Surface Soil | Residential Area Boy Scout Center | Ingestion Dermal, & Inhalation |
Residents, Scout Members | Past, Present, Future |
Lawn Maintenance, Recreational Activities | Unknown | Pentachlorophenol Lead |
ATSDR Plain Language Glossary of Environmental Health Terms
Revised -15Dec99
