DELAWARE SAND & GRAVEL LANDFILL
NEW CASTLE, DE
Health & Environment
On this page:
What Are the Risks at the Site?
Contaminants found in groundwater include benzene, bis(2-chloroethyl)ether,1,2-dichloroethane, 1,4-dioxane and ethylbenzene. Contaminants found in soil included benzene, bis(2-chloroethyl)ether, 1,2-dichloroethane, methylene chloride, polychlorinated biphenyls (PCBs), arsenic, antimony and lead.
Risks and pathways addressed by the cleanup include health risks from people ingesting or touching contaminants in soil and groundwater. No private well systems are affected.
The Artesian Water Company has been treating water from the Llangollen Well Field to protect against site contamination.
Contaminant descriptions and risk factors are available from the Agency for Toxic Substances and Disease Registry, an arm of the Centers for Disease Control.
EPA uses performance measures to track environmental results at Superfund sites. If you have any questions or concerns about the measures at this site, please contact the site team members listed under Site Contacts.
Read more about Superfund Remedial Performance Measures.
|Status at this
|What does this mean?|
|Human Exposure Under Control||Yes||Yes means assessments indicate that across the entire site:
No means an unsafe level of contamination has been detected at the site and a reasonable expectation exists that people could be exposed.Insufficient data means that, due to uncertainty regarding exposures, one cannot draw conclusions as to whether human exposures are controlled, typically because:
|Groundwater Migration Under Control||No||
Yes means EPA reviewed all information on known and reasonably expected groundwater contamination. EPA concluded the migration of contaminated groundwater is stabilized and there is no unacceptable discharge to surface water. EPA will conduct monitoring to confirm that affected groundwater remains in the original area of contamination.
No means EPA has reviewed all information on known and reasonably expected groundwater contamination, and the migration of contaminated groundwater is not stabilized.
Insufficient data means that due to uncertainty regarding contaminated groundwater migration, EPA cannot draw conclusions as to whether the migration of contaminated groundwater is stabilized.
Yes means the physical construction of the cleanup is complete for the entire site.
No means either physical construction is not complete or actions are still needed to address contamination.
|Sitewide Ready for Anticipated Use||No||Yes means:
No means that one or more of these three criteria have not been met. However, a site listed as no may still have redevelopment occurring on portions of the site and may be eligible for additional redevelopment.