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| | Delaware Risk Based Corrective Action Process Tier 1 DERBCAP |
 | | A Tier 1 DERBCAP assessment might prove valuable to an RP where a site has extensive soil contamination, where site constraints prohibit excavation, or where the site has low levels of non-recoverable free phase or dissolved phase hydrocarbons involving extensive monitoring, or where previous remedial efforts have failed. |
 | | In Tier 1, specific chemicals of concern (COCs) found in petroleum products are chosen for a variety of factors including, but not limited to, carcinogenicity or other health effects, persistence in the environment, mobility, solubility, vapor pressure, or aesthetic factors. |
 | | Tier 1 fate and transport default parameters used to calculate the RBSLs are located in Appendix 2, exposure assumptions are located in Appendix 3. |
| www.dnrec.state.de.us /dnrec2000/divisions/awm/ust/tgm/d_cap/Section3.html (2442 words) |
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