RIVER CITY METAL FINISHING
SAN ANTONIO, TX
Health & Environment
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What Are the Risks at the Site?
The Edwards Aquifer system is the sole source of water for the San Antonio area, where it provides domestic, industrial and agricultural water. There are 20 public supply wells located within four miles of the site. Because of the geologic formations, fractured limestone, karst conditions and interconnected aquifers, contamination may enter the aquifer and migrate through fractures. Without investigation and remediation of the contaminated ground water plume, contamination may migrate to additional public water supply wells and private wells.
Soil and ground water are contaminated with heavy metals and cyanide associated with metal plating. Cyanide, lead, cadmium, copper, selenium, zinc, chromium and hexavalent chromium are contaminating on-site soils and underlying ground water. Hexavalent chromium was found at concentrations exceeding the Safe Drinking Water Act’s Maximum Contaminant Level (MCL) within monitoring wells located in the shallow ground water and below the MCL in public supply wells completed in the Edwards Aquifer.
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||Insufficient Data||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||Insufficient Data||
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.