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Guidance for performing preliminary assessments under CERCLA

Description: EPA headquarters and a national site assessment workgroup produced this guidance for Regional, State, and contractor staff who manage or perform preliminary assessments (PAs). EPA has focused this guidance on the types of sites and site conditions most commonly encountered. The PA approach described in this guidance is generally applicable to a wide variety of sites. However, because of the variability among sites, the amount of information available, and the level of investigative effort required, it is not possible to provide guidance that is equally applicable to all sites. PA investigators should recognize this and be aware that variation from this guidance may be necessary for some sites, particularly for PAs performed at Federal facilities, PAs conducted under EPA`s Environmental Priorities Initiative (EPI), and PAs at sites that have previously been extensively investigated by EPA or others. The purpose of this guidance is to provide instructions for conducting a PA and reporting results. This guidance discusses the information required to evaluate a site and how to obtain it, how to score a site, and reporting requirements. This document also provides guidelines and instruction on PA evaluation, scoring, and the use of standard PA scoresheets. The overall goal of this guidance is to assist PA investigators in conducting high-quality assessments that result in correct site screening or further action recommendations on a nationally consistent basis.
Date: September 1, 1991
Partner: UNT Libraries Government Documents Department

Pollution prevention opportunity assessments of US Army Corps of Engineers Civil Works Facilities

Description: This project summary describes three Pollution Prevention Opportunity Assessments conducted at US Army Corps of Engineers Civil Works facilities under the Waste Reduction Evaluations at Federal Sites (WREAFS) Program. The purposes of the WREAFS Program are to identify new technologies and techniques for reducing wastes from industrial processes at Federal sites, and to enhance the implementation of pollution prevention through technology transfer. New techniques and technologies for reducing waste generation are identified through pollution prevention opportunity assessments (PPOA) and may be further evaluated through joint research, development, and demonstration projects. The assessments were conducted using the procedures outlined in EPA`s Facility Pollution Prevention Guide. The assessments had two major phases. The first phase quantified waste generation and management practices. The second phase identified and evaluated the feasibility of opportunities and techniques to eliminate, reduce, or recycle wastes. The facilities studied in the PPOAs were: a navigation lock and dam; a warehouse and a maintenance and repair facility; a hydroelectric power plant; and a flood control dam and reservoir with associated public recreation areas. Other Federal agencies, such as the Bureau of Reclamation and the Tennessee Valley Authority have similar functions and facilities, as do states and the private sector. Thus, the results of the PPOAs described in the three full reports have applicability to a broad audience.
Date: August 1, 1995
Partner: UNT Libraries Government Documents Department

River Flooding

Description: "This indicator examines changes in the size and frequency of inland river flood events in the United States."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

U.S. and Global Precipitation

Description: This indicator shows trends in average precipitation for the United States and the world, including annual anomalies compared to the average precipitation from 1901 to 2000.
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Ocean Heat

Description: "This indicator describes trends in the amount of heat stored in the world's oceans."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Marine Species Distribution

Description: "This indicator examines changes in the location of fish, shellfish, and other marine species along U.S. coasts."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Lyme Disease

Description: "This indicator tracks the rate of reported Lyme disease cases across the United States."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Leaf and Bloom Dates

Description: "This indicator examines the timing of leaf growth and flower blooms for two widely distributed plants in the United States."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Sea Level

Description: "This indicator describes how sea level changed over time. The indicator describes two types of sea level changes: absolute and relative."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

High and Low Temperatures

Description: "The indicator describes trends in unusually hot and cold temperatures across the United States."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

National Coastal Condition Report

Description: "This National Coastal Condition report compiles several available data sets from different agencies and areas of the country and summarizes them to present a broad baseline picture of the condition of coastal waters."
Date: September 2001
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Lake Ice

Description: "This indicator measures the amount of time that ice is present on lakes in the United States."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Snow Cover

Description: "This indicator measures the amount of land in North America that is covered by snow."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Snowfall

Description: "This indicator uses two different measures to show how snowfall has changed in the contiguous 48 states."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Streamflow

Description: "This indicator describes trends in the amount of water carried by streams across the United States, as well as the timing of runoff associated with snowmelt."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

U.S. and Global Temperature

Description: "This indicator describes trends in average surface temperature for the United States and the world."
Date: August 2016
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department