Dynamic Solution’s Asia Division was recently awarded it first contract in Southeast Asia as part of a team of companies developing and installing a flood warning system.

During the winter semester of 2005, Dr. Stoddard will be team teaching a graduate level course in multi-media environmental modeling at Johns Hopkins University. He will present a series of lectures on surface water quality modeling to complement lectures on groundwater modeling and air quality modeling.

FY 04 EFDC_Explorer News! Dynamic Solutions, LLC was awarded a sole source contract by USEPA ORD Service Center/NERL to continue development of the EFDC_Explorer Pre/Post Processor. The EFDC_Explore Pre/Post Processor continues to be the only publicly available Pre/Post Processor for the Environmental Fluid Dynamics Code (EFDC).

Recent Publications by Dynamic Solutions Staff

Slawecki, T., T. Bondelid and A. Stoddard. 2004. Balancing Point Source and Agricultural Controls in the Mississippi River Basin. WEFTEC'04: Proceedings of the Water Env. Fed. 77th Annual Conference & Exposition, Vol. X Surface Water Quality & Ecology: Watershed Nutrient Issues, New Orleans, LA , October 2-6, 2004.

Municipal Wastewater Treatment: Evaluating Improvements in National Water Quality. John Wiley & Sons, Inc., 672 pp. (www.wiley.com) Stoddard, Harcum, Simpson, Pagenkopf and Bastian. (2002). This outstanding publication was the first comprehensive evaluation of national and local scale water quality improvements that have resulted from the Clean Water Act.

Tetra Tech and Stoddard (2000) Progress in Water Quality: An Evaluation of the National Investment in Municipal Wastewater Treatment. EPA-832-R-00-008.
http://www.epa.gov/OW-OWM.html/wquality/benefits.htm

Conferences/Presentations

WEFTEC’04 - Water Environment Fed. 77th Annual Conference & Exposition, Vol. X Surface Water Quality & Ecology: Watershed Nutrient Issues, New Orleans, LA , October 2-6, 2004.
Balancing Point Source and Agricultural Controls in the Mississippi River Basin

AWPD Brown Bag: Wed. April 28, 2004 -- 12-1 pm -- in the Potomac Room- Rm. 7301

Topic: Progress in Water Quality: An Evaluation of the National Investment in Municipal Wastewater Treatment, 2000, EPA-832-R-00-008A (Also, published as a book in 2002)

Presenter: Dr. Andy Stoddard, Dynamic Solutions LLC, Hamilton, VA

Using historical records and a wealth of water quality data archived over the past 60 years, a new retrospective study evaluates the impact of the 1972 Clean Water Act on long-term water quality trends in the nation’s rivers and estuaries. Previously elusive answers to critical questions about the effectiveness of the regulatory requirements of the 1972 Clean Water Act were first offered in Progress in Water Quality: An Evaluation of the National Investment in Municipal Wastewater Treatment. This report was published as a peer reviewed study (EPA-832-R-00-008A) by the U.S. Environmental Protection Agency in 2000. John Wiley & Sons published Municipal Wastewater Treatment: Evaluating Improvements in National Water Quality in 2002. The book version of the study expands upon the prior EPA report, providing new case study data for wastewater discharges, water quality and environmental resource trends and other new information such as listings of all waterways targeted for federal enforcement actions from 1957-1972 and other detailed technical appendices.

G. Tracy Mehan III, EPA’s former Assistant Administrator for Water, commended the overall effort as being “the first national-scale study to provide a rigorous evaluation of the effectiveness of the effluent regulation policies in achieving the ‘fishable and swimmable’ goals of the Clean Water Act.” The study supports the hypothesis that the 1972 Clean Water Act’s technology-based regulation of wastewater treatment facilities has achieved significant nation-wide environmental success. The researchers clearly demonstrated a ‘before and after’ cause-effect relationship between the effluent limit regulations of the Clean Water Act, the national investment in water pollution control and significant improvements in water quality in the nation’s rivers.

Mehan commended the findings of the study noting that its nine case studies “make a compelling case that local water pollution control investments directly improved water quality, restored fisheries and other vital environmental resources, created water-based recreational opportunities and revitalized once abandoned waterfront property.” Case studies include the Connecticut River, the Hudson-Raritan estuary, the Delaware estuary, the Potomac estuary, the James estuary, the Chattahoochee River, the Ohio River, the Upper Mississippi River and the Willamette River.