HEALTH CONSULTATION
Health Risks Associated With Exposure to Contaminated Sediments
RUDDIMAN CREEK WATERSHED
(a/k/a RUDDIMAN DRAIN AREA)
MUSKEGON, MUSKEGON COUNTY, MICHIGAN
EPA FACILITY ID: MID980608764 
January 9, 2003
Prepared by:
Michigan Department of Community Health
Under a Cooperative Agreement with the
Agency for Toxic Substances and Disease Registry
TABLE OF CONTENTS
BACKGROUND AND STATEMENT OF ISSUES
Figure 1. Ruddiman Creek Watershed
Figure 2. Ruddiman Creek Location Features
Table 1. Range of chemical concentrations detected in sediments in Ruddiman Pond
Table 2. Range of chemical concentrations detected in sediments in the West Branch of Ruddiman Creek
Table 4. Range of chemical concentrations detected in sediments in the Main Branch of Ruddiman Creek
Table 5. Exposure parameters used for intake equations
| ATSDR | Agency for Toxic Substances and Disease Registry |
| DCC | MDEQ Direct Contact Criteria |
| EPA | U.S. Environmental Protection Agency |
| LOAEL | Lowest observed adverse effect level |
| MDCH | Michigan Department of Community Health |
| MDEQ | Michigan Department of Environmental Quality |
| MRL | ATSDR Minimal Risk Level |
| NOAEL | No observed adverse effect level |
| PCBs | polychlorinated biphenyls |
| RCTF | Ruddiman Creek Task Force |
| RfD | U.S. EPA Reference Dose |
| SWQD | MDEQ Surface Water Quality Division |
| SVOC | Semi-volatile organic compound |
| VOC | Volatile organic compound |
