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in subjects: "Water pollution"  
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High performance hand-held gas chromatograph

Description: Gas chromatography is a prominent technique for separating complex gases and then analyzing the relative quantities of the separate components. This analytical technique is popular with scientists in a wide range of applications, including environmental restoration for air and water pollution, and chemical and biological analysis. Today the analytical instrumentation community is to working towards moving the analysis away from the laboratory to the point of origin of the sample (''the field'')… more
Date: January 10, 2001
Creator: Yu, C M & Koo, J C
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Endocrine Disruption: An Introduction

Description: Exposure to certain chemicals in the environment could disrupt the hormone systems of animals and humans, according to some scientists who are concerned about potential risks to public health and ecosystems. Congress has mandated chemical screening to assess the potential of pesticides and drinking water contaminants to influence the normal functions of female, male and thyroid hormones. As conflicting scientific evidence accumluates on the hormone disruption hypothesis, legislators may conside… more
Date: January 11, 2001
Creator: Schierow, Linda-Jo & Buck, Eugene H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Water Quality: Implementing the Clean Water Act

Description: Congress enacted the most recent major amendments to the Clean Water Act in 1987 (P.L. 100-4). Since then, the Environmental Protection Agency (EPA), states, and others have been working to implement the many program changes and additions mandated in the law. At issue today, as it has been for some time, is what progress EPA and the states are making. In general, many states and environmental groups fault EPA for delays in issuing guidance and assistance needed to carry out the provisions of th… more
Date: August 15, 2001
Creator: Copeland, Claudia
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Surveillance of site A and plot M - report for 2000.

Description: The results of the environmental surveillance program conducted at Site A/Plot M in the Palos Forest Preserve area for Calendar Year 2000 are presented. Based on the results of the 1976-1978 radiological characterization of the site, a determination was made that a surveillance program be established. The characterization study determined that very low levels of hydrogen-3 (as tritiated water) had migrated form the burial ground and were present in two nearby hand-pumped picnic wells. The curre… more
Date: June 4, 2001
Creator: Golchert, N. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interim Action Record of Decision Remedial Alternative Selection Met Lab HWMF

Description: The purpose of this interim action for the Metallurgical Laboratory HWMF Operable Unit is to minimize migration of contaminants to groundwater from the Metallurgical Laboratory Basin sediments and sediments associated with the process sewer line while risk assessment activities for the Carolina Bay are being planned and conducted.
Date: September 25, 2001
Creator: Palmer, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quarterly Progress Report - Biological Monitoring Program for East Fork Poplar Creek

Description: In May 1985, a National Pollutant Discharge Elimination System (NPDES) permit was issued for the Oak Ridge Y-12 National Security Complex (formerly the Oak Ridge Y-12 Plant). As a condition of the permit, a Biological Monitoring and Abatement Program (BMAP) was developed to demonstrate that the effluent limitations established for the Y-12 Complex protect the classified uses of the receiving stream (East Fork Poplar Creek; EFPC), in particular, the growth and propagation of aquatic life (Loar e… more
Date: January 19, 2001
Creator: Adams, S. M.; Christensen, S. W.; Greeley, M. S. Jr.; McCracken, M. K.; Peterson, M. J.; Ryon, M. G. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization Activities to Evaluate Chlorinated Solvent Discharges to Tims Branch from the A/M Area of the Savannah River Site

Description: The objective of this investigation was to identify those regions of plume outcrop along Tims Branch southeast of A/M Area and to establish fixed monitoring points along the seepline to evaluate proposed remediation needs and to support long-term monitoring activities in the vicinity of the seepline. The characterization approach employed in completing these tasks was dynamic and graded. Three stages of characterization were used to evaluate the outcrop region, with the results from each of the… more
Date: February 23, 2001
Creator: Jackson, D. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of an Area-of-Review (AOR) Concept to the East Texas Field and Other Selected Texas Oilfields

Description: The Underground Injection Control Regulations promulgated in 1980, under the Safe Drinking Water Act of 1974, require Area-of-Review (AOR) studies be conducted as part of the permitting process for newly drilled or converted Class II injection wells. Existing Class II injection wells operating at the time regulations became effective were excluded from the AOR requirement. The AOR is the area surrounding an injection well or wells defined by either the radial distance within which pressure in t… more
Date: April 19, 2001
Creator: Warner, Don L.; Koederitz, Leonard F. & Laudon, Robert C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bibliography of Work on the Heterogeneous Photocatalytic Removal of Hazardous Compounds from Water and Air--Update Number 4 to October 2001

Description: This report is the fifth in a series of bibliographies of work on the photocatalytic oxidation of organic or inorganic compounds in air or water and on the photocatalytic reduction of inorganic compounds in water. This search contains information extracted from 1149 new references to papers, books, and reports from searches conducted between October 1996 and April 2001.
Date: November 19, 2001
Creator: Blake, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ultralow Concentration Mercury Treatment Using Chemical Reduction and Air Stripping

Description: Field, laboratory and engineering data confirmed the efficacy of chemical reduction and air stripping as an ultralow concentration mercury treatment concept for water containing Hg(II). The simple process consists of dosing the water with low levels of stannous chloride (Sn(II)) to cover the mercury to Hg degrees. This mercury species can easily be removed from the water by air stripping or sparging.
Date: May 21, 2001
Creator: Looney, B. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Clean Water Act and Total Maximum Daily Loads (TMDLs) of Pollutants

Description: Section 303(d) of the Clean Water Act requires states to identify waters that are impaired by pollution, even after application of pollution controls. For those waters, states must establish a total maximum daily load (TMDL) of pollutants to ensure that water quality standards can be attained. Implementation was dormant until recently, when states and EPA were prodded by numerous lawsuits.
Date: October 30, 2001
Creator: Copeland, Claudia
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

National Estuary Program: A Collaborative Approach to Protecting Coastal Water Quality

Description: This report discusses National Estuary Program and is based on 11 of the 28 estuaries that are currently in the National Estuary Program which represent common environmental problems along the nation’s coastline: on the Pacific Coast, the Columbia River, Puget Sound, San Francisco Bay, and Santa Monica Bay; on the Atlantic Coast, Albemarle-Pamlico Sound, Long Island Sound, Narragansett Bay, and Maryland’s coastal bays (excluding Chesapeake Bay); and on the Gulf of Mexico, Charlotte Harbor, Corp… more
Date: January 12, 2001
Creator: Bearden, David M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Clean Water Issues in the 107th Congress: An Overview

Description: Key water quality issues that may face the 107th Congress include: actions to implement existing provisions of the Clean Water Act, whether additional steps are necessary to achieve overall goals of the Act, and the appropriate federal role in guiding and paying for clean water activities. This Act is the principal law that deals with polluting activity in the nation’s lakes, rivers, and coastal waters and authorizes funds to aid construction of municipal wastewater treatment plants. Legislativ… more
Date: January 5, 2001
Creator: Copeland, Claudia
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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