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Site content related to keyword: "New Castle County"

Groundwater Station: DGS Well Hb14-12

DGS Well Hb14-12

Station Type: 
Groundwater
Period of Record: 
1957 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.330398,-75.685203

Groundwater Station: DGS Well Db24-18

DGS Well Db24-18

Station Type: 
Groundwater
Period of Record: 
1957 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.648700, -75.697502

Meteorological Station: University of Delaware Ag Farm

University of Delaware Ag Farm Weather Station

Station Type: 
Meteorological
Period of Record: 
1949 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.66667,-75.75

Meteorological Station: New Castle County Airport

New Castle Airport Meterological Station

Station Type: 
Meteorological
Period of Record: 
1949 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.66667,-75.60

Meteorological Station: Porter Reservoir

Porter Reservoir Meteorological Station

Station Type: 
Meteorological
Period of Record: 
1949 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.77317,-75.54270

Stream Station: Brandywine Creek at Wilmington

USGS 01481500 BRANDYWINE CREEK AT WILMINGTON, DE

Station Type: 
Stream
Period of Record: 
1946 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.769416667,-75.573277

Stream Station: Red Clay Creek near Stanton

USGS 01480015 RED CLAY CREEK NEAR STANTON, DE

Station Type: 
Stream
Period of Record: 
1988 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.71575,-75.639944

Stream Station: Red Clay Creek at Wooddale

USGS 01480000 RED CLAY CREEK AT WOODDALE, DE

Station Type: 
Stream
Period of Record: 
1943 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.762805,-75.6365

Stream Station: White Clay Creek near Newark

USGS 01479000 WHITE CLAY CREEK NEAR NEWARK, DE

Station Type: 
Stream
Period of Record: 
October 1931 to September 1936, June 1943 to September 1957, October 1959 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.69922,-75.675027

Stream Station: White Clay Creek at Newark

USGS 01478650 WHITE CLAY CREEK AT NEWARK, DE

Station Type: 
Stream
Period of Record: 
1994 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.689222,-75.74875

Stream Station: Christina River at Coochs Bridge

USGS 01478000 CHRISTINA RIVER AT COOCHS BRIDGE, DE

Station Type: 
Stream
Period of Record: 
1943 to Present
Frequency: 
Monthly
Map County: 
New Castle County
Map Location: 
39.637388,-75.727888

Digital Water-Table Data for New Castle County, Delaware (Digial Data Product No. 05-04)

Digital Water-Table Data for New Castle County, Delaware

This digital product contains gridded estimates of water-table (wt) elevation and depth to water (dtw) under dry, normal, and wet conditions for New Castle County, Delaware excluding the Piedmont. Files containing the point data used to create the grids are also included. This work is the final component of a larger effort to provide estimates of water-table elevations and depths to water for the Coastal Plain portion of Delaware. Mapping was supported by the Delaware Department of Natural Resources and Environmental Control and the Delaware Geological Survey.

These grids were produced with the same multiple linear regression (MLR) method as Andres and Martin (2005). Briefly, this method consists of: identifying dry, normal, and wet periods from long-term observation well data (Db24-01, Hb14-01); estimating a minimum water table (Sepulveda, 2002) by fitting a localized polynomial surface to elevations of surface water features (e.g., streams, swamps, and marshes); and, computing a second variable in the regression from water levels observed in wells. Separate MLR equations were determined for dry, normal, and wet periods and these equations were used in ArcMap v.9 (ESRI, 2004) to estimate grids of water-table elevations and depths to water. New Castle County was divided into a northern section and a southern section with the C&D Canal being the natural line of demarcation. A minimum water-table surface was then calculated for both the northern and southern sections of New Castle County. However, dividing the county, as well as the water-level data, into two sections did not result in sufficient regression coefficients for use in the estimation process. Therefore, the data (minimum water-table surface and water-level data) were merged together and the water-table elevation and depth to water grids for dry, normal, and wet conditions were then calculated for the county as a whole.

DGS Digital Datasets

In the same ways as our printed publications, digital data released by the DGS represent the results of original professional research and as such are used by professionals and the public.

Catalog of Delaware Earthquakes Spreadsheet

Catalog of Delaware Earthquakes Spreadsheet

The occurrences of earthquakes in northern Delaware and adjacent areas of Pennsylvania, Maryland, and New Jersey are well documented by both historical and instrumental records. Over 550 earthquakes have been documented within 150 miles of Delaware since 1677. One of the earliest known events occurred in 1737 and was felt in Philadelphia and surrounding areas. The largest known event in Delaware occurred in the Wilmington area in 1871 with an intensity of VII (Modified Mercalli Scale). The second largest event occurred in the Delaware area in 1973 (magnitude 3.8 and maximum Modified Mercalli Intensity of V-VI). The epicenter for this event was placed in or near the Delaware River. Sixty-nine earthquakes have been documented or suspected in Delaware since 1871.

Kent and Sussex Water Recharge Data (Digital Data Product No 02-01)

Ground-Water Recharge Potential For Kent and Sussex Counties

Ground-water recharge potential maps show land areas characterized by their abilities to transmit water from land surface to a depth of 20 feet. The basic methods for mapping ground-water recharge potential are presented in Delaware Geological Survey Open File Report No. 34 (Andres, 1991) and were developed specifically for the geohydrologic conditions present in the Coastal Plain of Delaware. The digital data for this layer comes from DGS Digital Data Product DP 02-01, Digital Ground-Water Recharge Potential Map Data For Kent and Sussex Counties, Delaware: A. S. Andres, C. S. Howard, T. A. Keyser, L. T. Wang, 2002.

Vertebrates: Phylum Chordata

Phylum Chordata includes the vertebrates. Although not as common as the invertebrates, teeth and bones from different classes of vertebrate animals can be found at Canal sites.

Starfish and Urchins: Phylum Echinodermata

Echinoderms are "spiny-skinned" invertebrate animals that live only in marine environments. Two major divisions are recognized by biologists: principally attached, usually stalked forms of the Pelmatozoa; and unattached free-moving forms of the Eleutherozoa.

Insects and Crustaceans: Phylum Arthropoda

Arthropods are animals with a segmented body, external skeleton, and jointed appendages. The Arthropoda includes insects and crustaceans. Only two groups of arthropods are common as fossils in the Cretaceous of the C&D Canal area, and both are types of crustaceans: the Malacostraca (crabs, lobsters, and shrimp) and the microscopic Ostracoda.

Segmented Worms: Phylum Annelida

Annelids are segmented worms. The remains of the soft-bodied segmented worms are not usually preserved as fossils. Some marine (salt-water) types, however, secrete tubes of calcium carbonate to use both as a home and to provide protection from their enemies. These tubes can be found as isolated specimens or attached to larger shells. Two genera, Serpula and Hamulus, are fairly common in formations near the C&D canal.