United States of America

Filter Total Items: 3,205
Date published: January 1, 2000
Status: Completed

Probability Flows for Streams in Eastern WA

Under Washington regulations, bridges, culverts, and other stream-crossing structures need to be designed with fish passage in mind. For culverts, maximum flows cannot exceed a 10-percent exceedance probability flow (the flow that is equalled or exceeded 10 percent of the time) when fish are migrating upstream.

To help the Washington Department of Natural Resources manage its culverts...

Date published: January 1, 1999

Mississippi Delta Management Systems Evaluation Areas (MDMSEA)

The Mississippi Delta Management Systems Evaluation Areas (MDMSEA) Project began in 1995 with two purposes: 1) to assess how agricultural activities affect water quality; and 2) to evaluate Best Management Practices (BMPs) that mitigate agricultural nonpoint source pollution. The project is located in the northwestern portion of Mississippi, an area of intense agriculture referred to as the...

Date published: January 1, 1999
Status: Completed

Mapping Shipping Hazards in San Francisco Bay

Information about the 1997-1998 study by USGS Pacific Coastal and Marine Science Center, to map the floor of San Francisco Bay in order to reveal the bay's shipping hazards.

Contacts: Peter Dartnell
Date published: October 31, 1998
Status: Completed

Effects of increasing urbanization on ground- and surface-water resources in the Fraser River watershed

The USGS has assessed the effects of increasing urbanization on ground- and surface-water resources in the Fraser River watershed. The population of Grand County increased 93 percent between the years of 1970 and 1990. The majority of the new development in the watershed will rely on ground water and individual septic disposal systems (ISDS's). This study has assessed the potential effects of...

Contacts: Nancy J Bauch
Date published: November 19, 1997
Status: Completed

High-Latitude Climate Transects

Legacy Data: High-Latitude Climate Transects

Date published: May 23, 1997
Status: Active

Groundwater-level data for the Albuquerque Basin and Adjacent Areas

The Albuquerque hydrologic basin extends along the Rio Grande from Cochiti in the north to San Acacia in the south. Increases in groundwater pumping to accommodate population growth in the basin resulted in substantial groundwater-level drawdown in some areas.

Contacts: Joseph E Beman
Date published: May 22, 1997
Status: Archived

Groundwater Monitoring in the Espanola Basin Piezometers

In 1996, the U.S. Geological Survey, in cooperation with the City of Santa Fe, and the New Mexico Office of the State Engineer began a drilling program to install specialized monitoring wells in the Espanola basin. The purpose of the program is to monitor hydraulic head at specific depths in the aquifer. Most of these specialized wells, called piezometers, are located in areas between major...

Contacts: Joseph E Beman
Date published: May 22, 1997
Status: Active

Groundwater-Level Monitoring in Middle Rio Grande Basin Piezometers

In 1996, the U.S. Geological Survey, in cooperation with the New Mexico Office of the State Engineer and the Albuquerque Bernallilo County Water Utility Authority, began a drilling program to install specialized monitoring wells in the Middle Rio Grande Basin. The purpose of the program is to monitor hydraulic head at specific depths in the aquifer (fig. 1). Most of these specialized wells,...

Contacts: Joseph E Beman
Date published: May 22, 1997
Status: Active

Middle Rio Grande Piezometer network

In 1996, the U.S. Geological Survey, in cooperation with the New Mexico Office of the State Engineer and the Albuquerque Bernallilo County Water Utility Authority, began a drilling program to install specialized monitoring wells in the Middle Rio Grande Basin. The purpose of the program is to monitor hydraulic head at specific depths in the aquifer (fig 1). Most of these specialized wells,...

Contacts: Joseph E Beman
Date published: November 19, 1996
Status: Completed

Statewide Geologic Maps for Alaska

Legacy Data: Statewide Geologic Maps for Alaska

Date published: October 20, 1996
Status: Completed

Upper Animas River Basin Abandoned Mine Lands Initiative

The USGS Abandoned Mine Lands Initiative (AMLI) is developing and demonstrating scientific knowledge and technologies that will help Federal land management agencies clean up contamination in areas near abandoned hardrock mines across the Nation. The Initiative is being conducted in two pilot watersheds, the Upper Animas River Basin in Colorado and the...

Date published: January 1, 1989
Status: Completed

Giant Hawaiian Underwater Landslides

Information about the USGS Pacific Coastal and Marine Science Center's studies of giant underwater landslides in 1986 and 1988.

Contacts: Laura Torresan