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Toxics

PEER: EPA Delays Experiments Exposing Children to Chemicals

October 2, 2008

Colorado Goldfields Tests Treatment Technologies

September 10, 2008

Professor Says Rewatering May Help Prevent Lead Poisoning

August 29, 2008

FEMA Calls on EPA for Flood-area HazMat Recovery

June 24, 2008

Oregon Orders Welding Co. to Correct Hazwaste Violations

May 2, 2008

WRT Treats Antioch, Ill., Water for Radium

February 29, 2008

Chemistry Experts Team Up to Predict Reactions

February 19, 2008

Study: Farming Cause of River Chemistry Changes

January 26, 2008

U.S. Energy Company to Face Prosecution For Cross-Border Pollution in Canada

January 10, 2008

Superfund Settlement to Cost San Bernardino County $11 Million

November 10, 2007

Mercury's Rising Impact

June 1, 2007By Constance L. Senior

This contaminant, a combustion byproduct of power plants, is increasingly polluting land and water through air-borne deposition

Mercury is getting a lot of attention, both in the popular press and in state and federal regulatory agencies. Combustion systems, like coal-fired power plants, industrial boilers, incinerators, and cement kilns, are sources of mercury emissions to the air. This article outlines the mercury emission regulations that apply to different combustion systems and the best demonstrated means to control these emissions from combustion sources. This article focuses on utility and industrial combustion systems because they are the highest emitters and face the greatest reductions and tightest scrutiny.

A Shock to the System

June 1, 2006By Darin St. Germain

A new, stricter arsenic rule is starting to affect small and large water supplies

On Jan. 23, 2006, the arsenic rule was implemented with a new limit of 10 parts per billion (ppb) (the old standard was 50 ppb). The new rule has a broad reach; it affects large and small drinking water treatment systems, including non-community water supplies.

Water Quality Management 101

October 1, 2005By W. Wesley Eckenfelder, William Ney Hansard

A basic overview of the key concepts related to treating municipal and industrial wastewater

Over the past few decades there has been an increased awareness of the importance of water quality. Many municipalities and industrial facilities have upgraded or installed new technologies to meet the demand for clean water. Advances in water quality science show that further improvements are needed to ensure a plentiful water supply and to protect the natural environment.

Tackling Tough Contaminants

November 1, 2004By Russell A. Schuck, PG

Successful remediation of recalcitrant compounds starts with comprehensive site characterization

There are numerous case studies of failed remedial systems, which in turn can be linked to the remedial design team not fully understanding the site conditions. Often the most effective way to clean up these recalcitrant sites is source/migration control rather than intrusive remediation. The best solution can only be determined if the site is properly understood.