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Artificial Recharge of Ground Water
A need for international and interdisciplinary technology transfer on the subject of artificial recharge resulted in the American Society of Civil Engineers' (ASCE) Irrigation...

The Ozone Defense
Ozone is a molecule containing three oxygen atoms. When bubbled through drinking water, the third atom in ozone is attracted away by other molecules, a process called oxidation. This process...

Are the Soil Depositions in Mexico City Unique?
The answer clearly is: YES| However, the amplification and soil-structure interaction effects observed in Mexico City are important considerations - even if they may not be so severe -in...

Managing Dioxin
Dioxins, among the most toxic compounds known to man, are by-products from production of other chemical products. There are currently about 5000 metric tons of dioxin-containing wastes...

Design of Drilled Piers in the Atlantic Piedmont
The philosophy and methods of drilled pier foundation design in the Atlantic Piedmont are described. Consideration is also given to the unique characteristics of decomposed metamorphic...

The Delineation and Management of Wellhead Protection Areas
The delineation and protection of a management zone around specific wells or wellfields will undoubtedly become more common as the 1986 Amendments to the Safe Drinking Water Act are implemented...

Physical and Chemical Treatment of Contaminated Groundwater at Hazardous Waste Sites
In selecting an appropriate groundwater treatment system, three steps are normally followed. 1. A groundwater investigation is performed to determine the types and concentrations of contaminants...

Collective Response to Erosion Along the Nigerian Coastline
Natural factors for the rapid coastal erosion include an intense wave climate, a low coastal plain topography, vulnerable sediment or soil characteristics and, the global eustatic rise...

Properties of Tin-Mined Land in Mangrove Forest, Thailand
Although mangrove forests occupy a very small area of Thailand, they contribute not only an ecosystem but also large tin ore deposits. Two provinces in the South, Ranong and Phangnga,...

Decisionmaking for Dredggedg Material Management
Management of dredged material produced in coastal environments is greatly complicated by the presence of chemical contaminants in the material. The kinds and quantities of contaminants...

Coastal Dunes for Protection and Sand Resources
Massive mining of dune sand on the north coast of Puerto Rico has impaired the natural ability of the dunes to protect the coast from high waves and long-term erosion. This paper presents...

Parameters Controlling the Success of Dune Revegetation at King Salmon, California
An eroded 9. 3 ha (23 acre) sand spit was restored through jetty construction and fill (using dredge spoils) by the Corps of Engineers at King Salmon on Humboldt Bay, California. An experimental...

Effects of Toxic Chemical Perceptions on Fishing Behavior
This study investigates: 1) whether angler's who perceive toxic chemicals in the water fish any differently than those who do not, and 2) do these behavioral differences have...

Implementation of Annex II to Marpol 73/78 and the Impact on Reducing Pollution in the Coastal Zone
Implementation of the International Treaty for the Prevention of Marine Pollution from Ships 1973, as amended by the Protocol Related Thereto, 1978 (MARPOL 73/78) will help to reduce the...

Perceiving Toxic Chemicals in Fishing Environments
The perception of toxic chemicals in the fishing environments by anglers was examined in Kansas and Michigan. The main findings of the study were: 1) There appears to be a small, but significant...

Quantifying Chemicals in Coastal Environments
Because management and regulation is largely based on numerical chemical data, understanding of the process, products and limitations of environmental chemical analysis is critical for...

Stewardship 87
Stewardship 87 provides new linkages between land users, public agencies and the non-profit sector. It creates a totally new rapport between local governments (dependent upon ad valorem...

Rocky Habitat Mitigation Using Artificial Reefs in Puget Sound, Washington
In Puget Sound, Washington, artificial reefs are being studied to determine their potential to mitigate for man-caused degradation of rocky habitat. These studies demonstrate the biological...

Ocean Erosion Control for the Private Sector
The paper describes some procedures of design and construction of riprap type protective structures to contain ocean erosion and to provide an end product that both gives protection and...

Use of Sediment Bulk Chemistry Data for Dredged Disposal Management in Puget Sound
Although no fully scientific approach for setting and interpreting sediment chemical levels is currently available, an effects-based approach for using bulk chemistry data was evaluated...

 

 

 

 

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