The Challenges of Stormwater Management

Stormwater management and its role in the larger challenge of preservation of water quality around the world is an evolving issue. As commercial development continues at record levels, both the quantity of runoff and water quality are issues that need to be looked at carefully. The engineering community is being pushed to design new solutions that keep groundwater and surface water ecology safe and that also protect development economics.

Deck: 

Stormwater Treatment

About The Author: 

Bryan A. Coppes is the vice president of research and development for Storm Tech, Inc. He is responsible for product development and R & D at Infiltrator Systems. Since 1993, he has been involved in the design process for Infiltrator's product lines and has assisted in establishing the StormTech subsidiary. Prior to joining Infiltrator Systems, Coppes worked in engineering and product development in the lift industry. He has a BS in mechanical engineering from the University of Connecticut and an MBA from Rensselaer Polytechnical Institute.

Activation Date: 
November 4, 2002
Files: 
Legacy
Legacy ID: 
13411

Groundwater Crisis and Sustainable Agriculture in Northern China

Although China ranks sixth in the world in total water resources, there is a shortage. The average water resources per capita is 2,300 m3, making it only one fourth of the world average per capita, while the unit plantation area of water resources is only one half the world’s average value.

Deck: 

Groundwater resources throughout northern China are drying up at an astonishing rate.

About The Author: 

Zhang Guang-xin and Deng Wei are associate professors at Changchun Institute of Geography, the Chinese Academy of Sciences, Changchun, P.R. China.

Activation Date: 
April 2, 2002
Legacy
Legacy ID: 
13037

Effects of Recharge of Chlorinated State Water Project Waters to Groundwaters in Lancaster Area of California

As the population in Southern California increases, more and more demands are being put on the state’s groundwater resources, further exacerbating the overdraft problem. Many communities in Southern California are recharging their aquifers with imported surface waters to combat this problem. The major recharge normally is carried out during wet weather periods when surface water is plentiful. However, recharging these groundwater aquifers with imported surface water can create the potential for water quality degradation. The problem can start when surface water is disinfected with chlorine to prevent biofouling and remove pathogens.

Deck: 

Groundwaters in many parts of California are an important sole source of water supply. However, in some areas indiscriminate pumping has lowered aquifer levels by hundreds of feet. This has caused sediment compaction and ground subsidence.

About The Author: 

Hisam A. Baqai, P.E., G.E., is the division manager of the Lahontan Regional Water Quality Control Board in Victorville, Calif.

Activation Date: 
April 2, 2002
Legacy
Legacy ID: 
13036

Advanced Treatment for Groundwater: Treating Low-Quality Groundwater for Municipal Use

Groundwater sources that can be used for drinking water purposes are requiring increasing degrees of treatment to meet the requirements of both the regulating agencies and the consumer.

Deck: 

Disinfection

About The Author: 

Ralph Gelvin, P.E., is a senior engineer with Burns & McDonnell.
Don Novak, P.E., is a project manager with Burns & McDonnell.

Activation Date: 
November 13, 2001
Legacy
Legacy ID: 
12769

Meeting the Challenge: Revitalizing the Las Vegas Wash

In response to growing concerns over water quality issues in the Wash, a committee has developed a comprehensive adaptive management plan to save this primary outlet for water flows.

Deck: 

Ecosystem Management

Activation Date: 
October 19, 2001
Legacy
Legacy ID: 
12707

Long-Term Settlement of a Large Water Standpipe

When tank settlement is anticipated, certain precautions must be taken to assure that the tank settles properly.

Deck: 

Water Tanks

About The Author: 

Steven Law, Ph.D., P.E., is a principal engineer and John Kasprzak is a design technician of the Infrastructure Systems Group of the Washington Suburban Sanitary Commission, Laurel, Md.

Activation Date: 
May 21, 2001
Legacy
Legacy ID: 
12392

Using Horizontal Wells for Groundwater Remediation

 

Deck: 

At Work on Groundwater Treatment

Activation Date: 
April 23, 2001
Files: 
Legacy
Legacy ID: 
12338

Oxidizing Arsenic III to Arsenic V for Better Removal

On June 22, 2000, the U.S. Environmental Protection Agency (EPA) proposed lowering the maximum contaminant level (MCL) for arsenic from 50 down to 5 micrograms/L (Federal Register, 2000).

About The Author: 

Dr. Dennis Clifford, P.E., is a professor of environmental engineering and chair of the Department of Civil and Environmental Engineering at the University of Houston. He has more than 30 years experience in teaching, research and consulting related to water and soil treatment. During the last 20 years, he and his students have extensively researched the subject of arsenic speciation, oxidation and treatment.

Ganesh Ghurye received his master’s degree in environmental engineering from the University of Houston, where he currently is a researcher in the area of water treatment. He has five years experience in developing arsenic treatment methods.

Activation Date: 
March 14, 2001
Files: 
Issue Reference: 
Legacy
Legacy ID: 
12210

Making Yankee Doodle Dandy: Ground Storage Reservoir Restoration

Fourteen entities came together to repair and restore a storage reservoir tank that was showing signs of advanced deterioration both inside and out.

Deck: 

Tank Coatings

About The Author: 

Dan Zienty is a project design leader for Short Elliott Hendrickson Inc., St. Paul, Minn.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11886

Natural Attenuation: Using Statistics to Understand Ground Water Contamination

When ground water contamination is discovered at a site, a host of questions must be answered before it can be effectively removed or minimized. Battelle Memorial Institute, an international research organization headquartered in Columbus, Ohio, has recently developed a statistical approach for assessing natural attenuation of contaminants. This approach can be used to estimate how quickly contaminants can be remediated using biological methods.

Deck: 

At Work on Groundwater Treatment Processes

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11243