| OCR Text |
Show -c-- EPA Docket No. CERCU-VUI-93-tO 4 13. Several exposure routes are associated with lead and arsenic contamination conditions at the Bingham Creek Channel Site. Direce contact, ingestion, inhalation, and inhalation resulting. in ingestion of the lead ad/or arsenic contaminated soils and dust pose the primary exposure pathways. RELEASE OR 4. THREAT OF RELEASE During site assessment (1990 identified lead and arsenic in the soil 1992) - activities, EPA properties of residential in the vicinity of Bingham Creek Channel as a potential threat to hwnan health and' welfare. EPA performed a removal action to the threat mitigate potential posed by the contaminated soil in 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 Creek Channel continues to accelerate. The 1980 census report indicated that approximately 1,360 people lived within a 4 mile The 1990 census report indicated that the radius of the Site. population is approximately 2,450 for the corresponding, area. New residential development long the channel continues and more. is p'led. \ RESPONDENTS is the .and/or operator of, the ARCO Tailing,s, facility along Bingham Creek Channel, from which hazardous substances wer.e 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 from which hazardous sUbstances were disposed of' and/or released into ARCO, a corporation incorporated under the laws Bingham Creek. of the State of Delaware, is- qualified to perfor.m the actions set 16. ARCO owner a forth in this Order. . Kennecott is the owner and/or 'operator of: facilities along Bingham Creek Cbannel from which hazardous substances were rennecott and/or disposed of and/or released into Bingham Creek. its predecessor in interest owned or operated, at the time of 7. disposal, facilities along Bingham Creek Channel from which hazardous s,ubstances wer 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. |
