New Jersey WSC Archived Projects
NAWQA is a program from the USGS that addresses the goals of that status of surface-water and groundwater, provide understanding of human impact, and to support local, state, and federal agencies with aforementioned data.
START DATE: 01-OCT-2006
END DATE: 01-OCT-2006
PROJECT NUMBER: 4571CRK
STUDY OBJECTIVES:
The USGS National Water-Quality Assessment (NAWQA) Program addresses three long-term goals:
- Describe the status and trends in the quality of a large, representative part of the Nation's surface-water and groundwater resources.
- Provide an improved understanding of the primary natural factors and human activities affecting these conditions.
- Provide information that supports development and evaluation of management, regulatory, and monitoring decisions by other Federal, State, and local agencies. The NAWQA Trend Network for ground water is designed to address objective T1 and partially address objectives T3 and T5:
Objective (T1) Determine long-term trends and changes in the concentrations of NAWQA target constituents in (a) 16 principal aquifer systems of the U.S. that have high use for drinking water and are representative of major aquifer lithologies, and (b) recently recharged ground water upgradient of these principal aquifers in a nationally representative range of hydrologic and land-use settings.
Objective (T3) - Determine the effects of urbanization on the concentrations and distributions of NAWQA target constituents in shallow or recently recharged ground water.
Objective (T5) - Determine the effects of long-term changes in agricultural management practices on the concentrations and distributions of NAWQA target constituents in shallow or recently recharged ground water.
STRATEGY AND APPROACH:
Achievement of these objectives within the NAWQA budget for ground-water trend assessment requires careful selection of relatively few studies. For example, some study units, particularly those not overlying a principal aquifer system, may not contain ground-water trend studies that are part of the NAWQA trends network. The following characteristics, which sometimes conflict, are used in selecting studies and determining sampling strategies.
Sources
- Representative coverage of the major agricultural and urban land uses of the nation Transport Processes
- Representative coverage of the diversity of hydrologic environments of the nation, as represented by hydrologic landscapes and other hydrogeologic characteristics
Effects
- Representative coverage of the principal aquifers of the nation that are most heavily used as sources of drinking water by metropolitan and rural populations.
The main focus of the NAWQA trend network design is to resample, by a three-tiered sampling strategy, selected Cycle I ground-water studies. Additional new studies (not conducted during Cycle I) will be added to the NAWQA trends network after completing their initial status assessment in Cycle II. These selected new studies are necessary to improve coverage of the range of source, transport and effect conditions found across the United States.
DISCLAIMER: This webpage contains information about completed or inactive projects from the NJ Water Science Center. It has been created for historical purposes and may be a utility to locate published information. This page should not be considered an authoritative source. You are encouraged to contact the NJ WSC for more current information.
NAWQA is a program from the USGS that addresses the goals of that status of surface-water and groundwater, provide understanding of human impact, and to support local, state, and federal agencies with aforementioned data.
START DATE: 01-OCT-2006
END DATE: 01-OCT-2006
PROJECT NUMBER: 4571CRK
STUDY OBJECTIVES:
The USGS National Water-Quality Assessment (NAWQA) Program addresses three long-term goals:
- Describe the status and trends in the quality of a large, representative part of the Nation's surface-water and groundwater resources.
- Provide an improved understanding of the primary natural factors and human activities affecting these conditions.
- Provide information that supports development and evaluation of management, regulatory, and monitoring decisions by other Federal, State, and local agencies. The NAWQA Trend Network for ground water is designed to address objective T1 and partially address objectives T3 and T5:
Objective (T1) Determine long-term trends and changes in the concentrations of NAWQA target constituents in (a) 16 principal aquifer systems of the U.S. that have high use for drinking water and are representative of major aquifer lithologies, and (b) recently recharged ground water upgradient of these principal aquifers in a nationally representative range of hydrologic and land-use settings.
Objective (T3) - Determine the effects of urbanization on the concentrations and distributions of NAWQA target constituents in shallow or recently recharged ground water.
Objective (T5) - Determine the effects of long-term changes in agricultural management practices on the concentrations and distributions of NAWQA target constituents in shallow or recently recharged ground water.
STRATEGY AND APPROACH:
Achievement of these objectives within the NAWQA budget for ground-water trend assessment requires careful selection of relatively few studies. For example, some study units, particularly those not overlying a principal aquifer system, may not contain ground-water trend studies that are part of the NAWQA trends network. The following characteristics, which sometimes conflict, are used in selecting studies and determining sampling strategies.
Sources
- Representative coverage of the major agricultural and urban land uses of the nation Transport Processes
- Representative coverage of the diversity of hydrologic environments of the nation, as represented by hydrologic landscapes and other hydrogeologic characteristics
Effects
- Representative coverage of the principal aquifers of the nation that are most heavily used as sources of drinking water by metropolitan and rural populations.
The main focus of the NAWQA trend network design is to resample, by a three-tiered sampling strategy, selected Cycle I ground-water studies. Additional new studies (not conducted during Cycle I) will be added to the NAWQA trends network after completing their initial status assessment in Cycle II. These selected new studies are necessary to improve coverage of the range of source, transport and effect conditions found across the United States.
DISCLAIMER: This webpage contains information about completed or inactive projects from the NJ Water Science Center. It has been created for historical purposes and may be a utility to locate published information. This page should not be considered an authoritative source. You are encouraged to contact the NJ WSC for more current information.