UNT Libraries Government Documents Department - 19 Matching Results

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Artificial Recharge in the Northern Part of Chino Ground-Water Basin, Upper Santa Ana Valley, California

Description: Purpose and Scope: The purpose of this study was to evaluate the geohydrologic characteristics that influence sustained artificial recharge and to determine long-term infiltration rates in the northern part of Chino ground-water basin. Results of this study will help management to design and implement a recharge-recapture system in Chino Basin. Nine test holes were drilled, long-term infiltration tests were made, and drillers' logs and water-level data were evaluated to determine the probable e… more
Date: June 1983
Creator: Koehler, J. H.
Item Type: Refine your search to only Report
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Mission Bay Harbor, California, Design for Wave and Surge Protection and Flood Control: Hydraulic Model Investigation

Description: Partial abstract: A 1:100-scale (undistorted) hydraulic model, reproducing Mission Bay Harbor, approximately 3 miles of shoreline, and sufficient offshore area to permit generation of the required test waves, was used to investigate the arrangement and design of proposed structures for (a) improving hazardous entrance conditions, (b) reducing surge inside the harbor, and (c) eliminating potential flood hazards. The original proposal for harbor improvement consisted of a 2,200-ft-long offshore b… more
Date: June 1983
Creator: Curren, Charles R.
Item Type: Refine your search to only Report
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National Uranium Resource Evaluation: Klamath Falls Quadrangle, Oregon and California

Description: From Introduction: "The Klamath Falls Quadrangle, in south-central Oregon between lat 42º and 43º N. and long 120º and 122º W. (Fig. 1), was evaluated to identify geologic environments and delineate areas with characteristics favorable for the occurrence of uranium deposits."
Date: June 1982
Creator: Castor, Stephen B.; Berry, M. R. & Robins, Jerold W.
Item Type: Refine your search to only Report
Location: None
open access

National Uranium Resource Evaluation: Trona Quadrangle, California

Description: From Purpose and Scope: "The Trona Quadrangle in the southeastern desert of California (Fig. 1) was evaluated to identify and delineate areas and geologic units that exhibit characteristics favorable for the occurrence of uranium deposits. It consisted of three phases: Phase I (6.0 man-months) encompassed literature review, preliminary map preparation, and preparation of a work plan. Phase II (23.4 man-months) consisted of fieldwork and data gathering. Phase III (5.1 man-months) concerned data … more
Date: June 1982
Creator: Bushnell, Marjorie M. & Morton, Paul K.
Item Type: Refine your search to only Report
Location: None
open access

Stratigraphic Nomenclature of the Central Santa Monica Mountains, Los Angeles County, California

Description: From abstract: The stratigraphic nomenclature of the central Santa Monica Mountains is revised to conform with present knowledge of the age, distribution, and stratigraphic relations of about 35 bedrock units. The revision is based on 1:12,000-scale mapping of the entire stratigraphic sequence and its facies, the position and stage assignment of abundant fossils, and contact relations.
Date: June 16, 1979
Creator: Yerkes, R. F. & Campbell, Russell H.
Item Type: Refine your search to only Report
open access

Magnitude and Frequency of Floods in California

Description: From purpose and scope: This report describes methods for evaluating the magnitude and frequency of floods at gaged and (or) ungaged sites in California. The purpose is to provide a base for the study of floods and the review and extension of flood magnitude-frequency relations by agencies and individuals who are concerned with the management and control of floods, highway construction, and other related work.
Date: June 1977
Creator: Waananen, A. O. & Crippen, J. R.
Item Type: Refine your search to only Report
open access

Geologic Summary of the Central Valley of California with Reference to the Disposal of Radioactive Waste

Description: From introduction: This report describes the geology of the area only to the extent necessary for preliminary evaluation of the possibilities for the disposal of liquid radioactive waste by injection through deep wells. Their value will increase with development of extensive commercial production of atomic power and attendant creation of radioactive waste from the processing of spent fuel elements. The disposal of liquid waste in deep reservoirs is only one of several possibilities that must be… more
Date: June 1960
Creator: Repenning, Charles Albert
Item Type: Refine your search to only Report
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