Performance of an Artesian Glacial Drift Aquifer with Induced Recharge
The City of Kalamazoo, Michigan, has constructed induced recharge facilities at sites of several of its twenty-one well fields as part of a program for supplying potable water to Kalamazoo...
Ground Water Management: Los Angeles Coastal Plan
In the early 1950s sea water intrusion became a serious problem and led to adjudication of the ground waters and the construction of an injection barrier to sea water intrusion. The general...
Pioneer Conjunctive Use Program in the Southern San Joaquin Valley
The Arvin-Edison Water Storage District is located in the southern end of the San Joaquin Valley of California. The District is a pioneer in using conjunctive use operations to overcome...
Artificial Recharge of Ground Water via Paddy Fields in an Alluvial Fan, Northern Japan
Artificial ground water recharge via paddy fields was tested during the winters of 1985/86 and 1986/87 in order to protect declining water levels. The purpose of this paper is to discuss...
Techniques of Artificial Recharge from an Ephemeral Wadi Channel Under Extreme Arid Conditions
A series of field experiments and theoretical analysis was carried out for the alluvial system in Wadi Tabalah in order to determine the feasibility of implementing artificial recharge...
Renewing San Diego Pumping Station No. 64
Pump Station 64 has experienced a number of sewage overflows into Penasquitos Lagoon since 1979 (57 in total). The California Regional Water Quality Control Board (CRWQCB) issued a Cease...
Geotechnical Notes on the Effects of Mexico's 1985 Earthquakes
The present notes briefly describe the most relevant effects of the September 19 and 20, 1985 earthquakes on shallow and deep foundations used in Mexico City, which is located at about...
Performance Characteristics of Structures, 1985 Mexico City Earthquake
The 1985 Mexico City earthquake caused major damage to buildings, but not other structures, in the center of Mexico City, located approximately 400 km. from the epicenter. Due to soil...
Seismic Rehabilitation: Why, When and How
Common methods of seismic rehabilitation are: repair of cracks, reconstruction of structural elements, addition of stiffening elements, and addition of dampers. A major consideration is...
Damage Assessment and Seismic Behaviour of Steel Buildings in Mexico City
Preliminary reports on the September 1985 earthquakes indicated 10 steel buildings collapsed and 2 more severely damaged. The total number of buildings found either collapsed or severely...
Thoughts on a Different Approach to Seismic Design Codes
The aim of this paper is to show that some of the principles on which conventional structural design is based are not directly applicable to seismic design. Seismic design, and the corresponding...
Courting Public Opinion
Promoting good community relations is an integral part of hazardous waste projects. Before field investigations are conducted, neighboring communities should be advised of the proposed...
A Flood in the Desert
Since 1982 the Great Salt Lake has risen from an elevation of 4,200 ft above mean sea level to a historic high of 4,211.85 ft in June 1986. The sharp rise in the lake has caused considerable...
Pressure Injected Footings in Piedmont Profiles
Comparatively little has been published on the behavior of pressure injected footings in the Piedmont residual soils and weathered rocks. It is the purpose of this paper to describe some...
Biological Treatment of Trichloroethylene
Trichloroethylene and related compounds such as cis- and trans-1,2-dichloroethylene and vinyl chloride are common contaminants of ground water in industrial areas. In oxygenated ground...
Maintaining the Gateway to the Columbia Basin?A Plan for Improvement
Portland District has begun a Maintenance Improvement Program to recommend procedures to reduce annual operations and maintenance costs while providing safe and efficient ship passage...
A Wetland Habitat Assessment Method using Birds
A wetland habitat assessment technique (HAT) using birds as indicators of habitat quality was developed from the method of V. R. Holmes et al. , (1986) and J. W. Graber and R. R. Graber...
Sand Bypass System at Oceanside, California
This paper describes the design and development of an experimental sand bypassing and channel maintenance system using jet pumps and fluidizers. The system was developed as a possible...
Concrete Armor Mats: Large-Scale Wave Tank Tests Wave Stability Tests
Concrete mats provide an alternative to the more conventional shoreline stabilization techniques. Material requirements are low, placement techniques are straightforward and they tend...
Techniques for Field Survey of the Eastern Red Sea
A system for generating a large scale resource inventory using a framework of geographically discrete site assessment quadrats has been used for a survey of the Eastern Red Sea. The quadrat...
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