| OCR Text |
Show ,'" EPA Docket No. CERCLA-vm-93-10 <. 4 13. Several exposure routes are associated with lead and arsenic contamination conditions at the Bingham Creek Channel Site. Direct contact, ingestion, inhalation, and inhalation resulting in ingestion of the lead and/or arsenic contaminated soils and dust pose the primary exposure pathways. RELEASE OR 14. THREAT OF RELEASE During site assessment (1990 - 1992) activities, EPA identified lead and arsenic in the soil of residential properties in the vicinity of Bingham Creek Channel as a potential threat to human health and welfare. EPA performed a removal action to the threat mitigate posed by the contaminated soil in potential 50 residential properties. The presence of the large volume of tailings at the Site containing high concentrations of lead and arsenic poses a continuing threat of release down-channel and recontamination of previously remediated residential property. The health based action level for lead at the above·mentioned residential removal was 2,500 mg/Kg.· This level was designed to address only the most critical levels of· contamination. 15. Population growth adjacent to and near the Bingham The 1980 census report Creek Channel continues to accelerate. indicated that approximately 1,360 people lived within a 4 mile radius of the: Site. The 1990 census. repot indicated that the .population is'approximately 2,450 f·or the corresponding area. New residential development along the channel continues· and more . - is planned. RESPONDENTS is the owner. and/or operator of the ARCO Tailings, Creek Channel, from whi.ch hazardous facility along Bingham substances were disposed of and/or released into. Bingham Creek. ARCO, through its predecessor in interest, owned or operated, at the time of disposal, facilities along Bingham Creek Channel f.rom which hazardous substances were disposed of and/or released into Bingham Creek. ARCO, a corporation incorporated under the laws of the State of Delaware, is qualified to perform the actions set forth in this Order.' 16. ARCO a . is the owner and/or operator of facilities Creek Channel from which hazardous substances were along Bingham Kennecott and/or disposed of and/or released into' Bingham Creek. its predecessor in interest owned or operated, at the time of disposal,. facilities along Bingham Creek Channel from which -hazardous substances were disposed of and/or.released into Kennecott, two corporations incorporated under Bingham Creek. the laws of the State of Delaware, is qualified to perform the actions set forth in this Order. 17. Kennecott |
