U.S. EPA Contaminated Site Cleanup Information (CLU-IN)


U.S. Environmental Protection Agency
U.S. EPA Technology Innovation and Field Services Division

Recent Additions

Two U.S. EPA Job Announcements That May Be of Interest to Our CLU-IN Audience

Posted: May 5, 2015

EPA's Office of Superfund Remediation and Technology Innovation (OSRTI) is seeking experienced analytical chemists to join its Analytical Services Branch (ASB) Contract Laboratory Program (CLP). The CLP provides EPA site cleanup managers will access to high quality site sample analyses via a network of contracted private laboratories. ASB chemists support this program by overseeing contracted laboratories, providing technical guidance to cleanup managers, and supporting analytical method development. There are two open job announcements in USAJobs. Act fast because they close soon. One position is open to all U.S. citizens and the other to all Federal employees. Both of these positions are in our Arlington, VA office.

2015 Environmental Measurement Symposium, Chicago, IL, July 12-17, 2015

Posted: May 5, 2015

The 2015 Environmental Measurement Symposium, which is the combined meeting of the Forum on Laboratory Accreditation and the National Environmental Monitoring Conference (NEMC), is co-sponsored by The NELAC Institute (TNI) under a cooperative agreement with the U.S. EPA. Some of the highlights for the week include: a special half-day general session focused on the conference theme; over 160 oral and poster presentations on a variety of cutting-edge environmental monitoring issues; meetings of TNI Committees to further TNI efforts on environmental laboratory accreditation, proficiency testing, and accreditation of field sampling and measurement organizations; an exhibit program showcasing the latest innovations in environmental monitoring; five special keynote presentations on topics of general interest; and an open meeting of U.S. EPA's Environmental Laboratory Advisory Board.

Two U.S. EPA Job Announcements That May Be of Interest to Our CLU-IN Audience

Posted: May 5, 2015

EPA's Office of Superfund Remediation and Technology Innovation (OSRTI) is seeking experienced analytical chemists to join its Analytical Services Branch (ASB) Contract Laboratory Program (CLP). The CLP provides EPA site cleanup managers will access to high quality site sample analyses via a network of contracted private laboratories. ASB chemists support this program by overseeing contracted laboratories, providing technical guidance to cleanup managers, and supporting analytical method development. There are two open job announcements in USAJobs. Act fast because they close soon. One position is open to all U.S. citizens and the other to all Federal employees. To access these job announcements, see: https://www.usajobs.gov/GetJob/ViewDetails/402752000 and https://www.usajobs.gov/GetJob/ViewDetails/402754400. Both of these positions are in our Arlington, VA office. Do not leave comments or questions related to these announcements on CLU-IN as they will go unanswered. These job announcement descriptions are posted on CLU-IN as a courtesy, knowing many of our users may be interested.

2015 EPA Greater Research Opportunities (GRO) Fellowships for Undergraduate Environmental Study

Posted: May 5, 2015

The U.S. EPA, as part of its GRO Fellowships program, is offering undergraduate fellowships for bachelor level students in environmental fields of study. Subject to availability of funding and other applicable considerations, the Agency plans to award approximately 34 new fellowships. Eligible students will receive support for their junior and senior years of undergraduate study and for an internship at an EPA facility during the summer of their junior year. The fellowship provides up to $20,700 per academic year of support and $8,600 of support for a three-month summer internship. The deadline for receipt of applications is May 19, 2015.

EPA Selects 20 Communities for Brownfields Area-Wide Planning (AWP) Grants

Posted: April 6, 2015

EPA has selected 20 communities in 16 states to receive approximately $4 million in Brownfields Area-Wide Planning (AWP) grants for cleanup and reuse of Brownfields sites to revitalize communities and strengthen local economies. These grants recognize that successful, sustained community revitalization, particularly in economically distressed communities, occurs when neighborhood stakeholders, local governments and the private sector are provided tools to develop a shared plan for redevelopment and community-wide improvement. EPA is awarding up to $200,000 per recipient to work with communities on Brownfields planning activities and reuse in conjunction with community assets such as housing, recreation and open space, employment, education and health facilities, social services, transportation options, infrastructure and commerce needs.

Combining Low-Energy Electrical Resistance Heating With Biotic and Abiotic Reactions for Treatment of Chlorinated Solvent DNAPL Source Areas: ESTCP Cost and Performance Report

Posted: April 23, 2015

This field demonstration combined electrical resistance heating (ERH) with zero-valent iron (ZVI) and in situ bioremediation ( ISB) for TCE treatment in two separate test cells at the East Gate Disposal Yard at Joint Base Lewis-McChord near Tacoma, Washington. The objectives included quantifying the effect of low-energy heating on the extent and rate of contaminant degradation, the impacts on the mass removal rate, relative contributions of biotic and abiotic contaminant degradation mechanisms at different temperatures, and the costs and benefits of applying low-energy heating with in situ treatments.

Integrated Stable Isotope-Reactive Transport Model Approach for Assessment of Chlorinated Solvent Degradation: User's Guide

Posted: April 23, 2015

The objective of this document is to help site managers apply a reactive transport modeling approach for improved compound-specific isotope analysis (CSIA) data interpretation and to estimate more accurate attenuation processes for chlorinated solvents. Quantification of destructive and transport processes and how they contribute to plume size and longevity may help extend monitored natural attenuation remedies to sites previously unable to use them. The report contains a description of standard CSIA laboratory methods, simple data interpretation, and a step-by-step guide to downloading and using software developed as part of this project. The approach presented has benefits over traditional data interpretation, i.e., (1) improvement of a conceptual site models by identification and quantification of prevalent attenuation pathways and identification of secondary inputs from DNAPL dissolution or nondegradative sinks, such as sorption or volatilization, diffusion, or dispersion; (2) a more accurate assessment of degradation of the parent contaminant; (3) and quantitative assessment of the net degradation/accumulation of the dechlorination intermediates.

Waste Discharge Requirements for Pacific Gas and Electric Company Groundwater Remediation Project Agricultural Treatment Units

Posted: May 4, 2015

Phytoremediation systems termed "agriculture treatment units" are in place to treat lower-concentration Cr(VI)-contaminated groundwater and provide for hydraulic control of the plume. Controlled application occurs at over 100 acres of pivot systems where each treatment zone uses a center-pivot drag-drip irrigation system that operates at ~1,400 gal/min, applying it to fields used to grow crops, typically forage crops for livestock such as alfalfa or sudan grass. The toxic, soluble Cr(VI) in the extracted groundwater applied to the fields is chemically reduced in the soils and root zones to the less toxic and insoluble Cr(III), where it remains immobilized. Based on analysis of almost 19 years of monitoring data from the site's agricultural treatment areas, phytoremediation removes, through reduction, ~95% of the Cr(VI) contained in the extracted groundwater. Extracting the groundwater to irrigate crops also provides hydraulic containment to limit the migration of the chromium plume in groundwater. See additional information at PG&E's Hinkley Groundwater Remediation Program website:

In-Situ Solidification of Contaminated Sediments: a Technology Demonstration Project

Posted: May 4, 2015

As an alternative to dredging and capping sediments affected by historical MGP operations, research was performed to determine if full-scale in situ solidification (ISS) and support equipment contained on a barge could solidify tar-contaminated sediments through a column of water using readily available grout components while meeting U.S. EPA performance goals. Project elements included the control of turbidity, pH, and sheen using a dual-turbidity curtain system, and results showed that rigid controls such as steel sheet piling may not be required for good performance. The report covers site characterization and treatability study of the pilot study area; permitting and mobilization; ISS operations in December 2013; sampling and testing; monitoring; pilot costs; and estimated full-scale costs. The primary result of the project was proof of concept that ISS of submerged sediments is achievable and is ready to be tested at a larger scale.