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Rating Unsaturated Zone and Watershed Characteristics of Public Water Supplies - Updates

This project was completed in 2009. These pages are for historical purposes only.

Metadata - Characterizing the Watershed Characteristics of North Carolina
Average Annual Precipitation Category Ratings

precipsw

Data format: Raster Dataset

File or table name: precipsw

Coordinate system: State Plane Coordinate System 1983

Theme keywords: Precipitation, Rainfall, Vulnerability, Ratings

Abstract: Average annual precipitation classes to characterize watersheds is one of 6 data sets updated for the North Carolina Public Water Supply, Source Water Assessment Program. These data are used to rate the susceptibility of public water supplies in North Carolina to contamination. The original dataset was produced in 2000. This version is updated to reflect new data sources. This data set represents the ratings applied to the average annual precipitation classes for use in the rating of the watershed characteristics for surface-water suppliers. Average annual precipitation is used as a measure of the amount of water (with or without contaminants) that travels as runoff or through the shallow subsurface to streams or lakes. For surface-water systems, the greater the average annual precipitation, the higher the rating applied on a scale of 1 to 10.

FGDC and ESRI Metadata:

Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.

Identification Information:


Citation:
Citation information:
Originators: Silvia Terziotti


*Title:
precipsw
*File or table name: precipsw


Publication date: 2009
Edition: Version 1.0, June 30, 2009
*Geospatial data presentation form: raster digital data


Publication information:
Publication place: Raleigh, NC
Publisher: U.S. Geological Survey

*Online linkage: \\Igsavbewfs001\Work\SWAP_updates\FinalLayers\SW\precipsw


Description:
Abstract:
Average annual precipitation classes to characterize watersheds is one of 6 data
sets updated for the North Carolina Public Water Supply, Source Water Assessment Program. These data are used to rate the susceptibility of public water supplies in North Carolina to contamination.

The original dataset was produced in 2000. This version is updated to reflect new data sources.

This data set represents the ratings applied to the average annual
precipitation classes for use in the rating of the watershed
characteristics for surface-water suppliers.

Average annual precipitation is used as a measure of the amount of water
(with or without contaminants) that travels as runoff or through the
shallow subsurface to streams or lakes. For surface-water systems,
the greater the average annual precipitation, the higher the rating
applied on a scale of 1 to 10.

Purpose:
This data set is to be used in a hydrologic analysis with other
data sets to rate the unsaturated zone for public ground-water
supplies and watershed characteristics for public surface-water
supplies in North Carolina.

For ground-water supplies, the factors used to rate susceptibility to
contamination include vertical hydraulic conductance, land-surface slope,
land cover, and land use.  The selected factors used to devise ratings for
surface-water supplies' susceptibility to contamination are average annual
precipitation, land-surface slope, land cover, land use, and ground-water
contribution.

Supplemental information:
The 1996 Amendments to the Safe Drinking Water Act require that each state prepare a source-water assessment for all public water supplies. States are required to (1) delineate source areas supplying wells and surface-water intakes, (2) inventory potential contaminant sources within the delineated source areas, and (3) determine the susceptibility of wells or intakes to the inventoried potential contaminant sources.

In North Carolina, the lead agency charged with this task is the Public Water Supply Section (PWSS) of the Division of Environmental Health, Department of Environment and Natural Resources (DENR). North Carolina's Source Water Assessment Program (SWAP) provides assessments of each public drinking water intake in North Carolina. These assessments provide a relative susceptibility rating calculated using state-wide data.

The U.S. Geological Survey (USGS) cooperated with the PWSS to provide components of the inherent vulnerability rating that was used with the contaminant rating to determine the overall susceptibility rating of source water supplies. To assist the PWSS with rating ground water inherent vulnerability, the USGS compiled the unsaturated zone rating based on the following characteristics: vertical hydraulic conductance, depth to water, land surface slope, land use and land cover. The watershed characteristic rating includes average annual precipitation, land surface slope, land use, land cover and groundwater contribution.

The SWAP program has planned for updates to the initial ratings as conditions change and new data sources become available. The initial data used to calculate the unsaturated zone ratings and watershed characteristics ratings were compiled from sources from the late 1990's. Critical data layers have been updated since the ratings were calculated. These improved data layers need to be used in the ongoing update of the susceptibility ratings.

Overlay and index methods for rating susceptibility to contamination
of the unsaturated zone for ground-water suppplies, and watershed
characteristics for surface-water supplies were derived for use
by the State of North Carolina in assessing more than 11,000 public
water-supply wells and approximately 245 public surface-water intakes.
Factors that influence the inherent vulnerability of ground water and
surface water were selected and assigned ratings on a scale of 1 to 10.
These factors were then assigned weight to reflect their relative influence
on inherent vulnerability and the reliability of the data.  The
values for each factor were obtained from geographic information
system (GIS) data layers that were transformed into ARC/INFO
raster data sets known as grids. These raster data sets have
30-meter by 30-meter cells, and each cell is assigned a weighted-
factor value.

Limitations --

The overlay and index methods of unsaturated zone and watershed
characteristics ratings are broad-stroke methods that assess
vulnerability on the basis of expert opinion. The methods aslo have
limitations in the age and scale of the hydrologic and geographic
data. But the most significant limitation of the methods used
is that no statistical confirmation of the results have been
performed.

AVERAGE ANNUAL PRECIPITATION:

Precipitation is a surrogate measure of the volume of water transported to surface-water intakes, with or without contaminants.

In North Carolina, average annual precipitation varies from about 37 inches to more than 97 inches.  Most of the variation occurs in the Blue Ridge Mountains, with the highest and lowest amounts occurring in this area.

Determination of average annual precipitation is based on the recently-developed Parameter-elevation Regressions on Independent Slopes Model (PRISM), which uses land-surface elevation to estimate precipitation in areas not covered by weather observation stations
(Daly, 1996). Average annual precipitation values, based on data collected from 1971 to 2007 at about 140 observation stations in North Carolina, are the input data to the PRISM model.

The average annual precipitation was updated to reflect a more recent period of record. The annual average precipitation rating in 2000 was based on the years 1961 through 1990. The current data set covers the period 1971 to 2007. This reflects changes from recent hurricanes as well as two major droughts that occurred in N.C. during 1998-2002 and again in 2008 (McSwain, K.B., and Weaver, J.C., 2008, Effects of the current drought on streamflow and ground-water conditions in North Carolina: Charlotte, NC, Geological Society of America Southeastern Section Meeting [abs].; and Weaver, J.C., 2005, The drought of 1998-2002 in North Carolina?Precipitation and hydrologic conditions: U.S. Geological Survey Scientific Investigations Report 2005-5053, 88 p.) There was an increase in tropical storm and hurricane activity that affected North Carolina during this period. According to the State Climate Office of North Carolina, 38 tropical storms or hurricanes affected North Carolina during the period 1971 to 2007. There were only 19 during the period 1961 to 1990 (http://www.nc-climate.ncsu.edu/climate/hurricane.php).

Average annual precipitation was categorized by increments of 5 inches, from less than 40 inches to more than 80 inches. Two-thirds of the State receives between 40 and 50 inches of rainfall during the year and have a precipitation rating of 2 or 3.  Average annual precipitation amounts exceeding 80 inches are rated 10.  The upper threshold of 80 inches was chosen because very few water-supply systems have watersheds located solely where rainfall exceeds this amount.

Average annual precipitation categories and rating for watershed
characteristics rating:

>Average annual precipitation,   Percent of area           Rating
>in inches                       in North Carolina
>
>Less than or equal to 40              1                      1
>
>Greater than 40 to                   39                      2
>less than or equal to 45
>
>Greater than 45 to                   32                      3
>less than or equal to 50
>
>Greater than 50 to                   19                      4
>less than or equal to 55
>
>Greater than 55 to                    7                      5
>less than or equal to 60
>
>Greater than 60 to                    1                      6
>less than or equal to 65
>
>Greater than 65 to                    1                      7
>less than or equal to 70
>
>Greater than 70 to                less than 1                8
>less than or equal to 75
>
>Greater than 75 to                less than 1                9
>less than or equal to 80
>
>Greater than 80                       1                     10

SELECTED REFERENCES:

Daly, C., 1996, Overview of the PRISM model, PRISM Climate Mapping
Program: accessed March 18, 1999, at URL
http://www.ocs.orst.edu/prism/prism_new.html

Daly, C., Neilson, R. P. and Phillips, D. L., 1994, A statistical-
topographic model for mapping climatological precipitation over
mountainous terrain: Journal of Applied Meteorology 33: p. 40-158.

Eimers, J. L., Weaver, J. C., Terziotti, S., and Midgette, R. W.,
2000, Methods of rating unsaturated zone and watershed
characteristics of public water supplies in North Carolina: U. S.
Geological Survey Water-Resources Investigations Report 99-4283,
31 p.

North Carolina Department of Environment and Natural Resources,
1999, North Carolina source water assessment program plan: Raleigh,
North Carolina Department of Environment and Natural Resources,
Division of Environmental Health, Public Water Supply Section,
[variously paged].

For more information on PRISM data see:
Daly, C., 1996, Overview of the PRISM model: accessed March 18, 1999,
at URL http://www.ocs.orst.edu/prism/prism_new.html

DISCLAIMER:

Any use of trade, product, or firm names is for descriptive purposes
only and does not imply endorsement by the
U.S. Government.

Although this Federal Geographic Data Committee-compliant metadata
file is intended to document the data set in nonproprietary form,
as well as in ARC/INFO format, this metadata file may include some
ARC/INFO-specific terminology.

*Language of dataset: en


Time period of content:
Time period information:
Single date/time:
Calendar date: 1971 - 2007

Currentness reference:
Based on 20 years of record

Status:
Progress: Complete
Maintenance and update frequency: None planned

Spatial domain:
Bounding coordinates:
*West bounding coordinate: -84.907009
*East bounding coordinate: -75.307866
*North bounding coordinate: 37.554514
*South bounding coordinate: 33.052474

Local bounding coordinates:
*Left bounding coordinate: 86676.419070
*Right bounding coordinate: 936216.419070
*Top bounding coordinate: 422155.256040
*Bottom bounding coordinate: -62644.743960

Keywords:
Theme:
Theme keywords: Precipitation, Rainfall, Vulnerability, Ratings
Theme keyword thesaurus: none

Place:
Place keywords: North Carolina
Place keyword thesaurus: none

Access constraints: none
Use constraints:
These data are not to be used for site specific analysis

Point of contact:
Contact information:
Contact person primary:
Contact person: Silvia Terziotti
Contact organization: U.S. Geological Survey
Contact position: Computer Specialist


Contact address:
Address type: mailing address
Address:
3916 Sunset Ridge Road
City: Raleigh
State or province: NC
Postal code: 27607
Country: USA

Contact voice telephone: (919) 571-4000
Contact facsimile telephone: (919) 571-4041


Contact electronic mail address: (seterzio@usgs.gov)


Data set credit:
The authors are grateful to colleagues in the Public Water Supply
Section of the Division of Environmental Health, North Carolina
Department of Environment and Natural Resources (DENR) for their
assistance in this collaborative project: thanks to Robert Midgette,
Protection and Enforcement Branch Head; Amy Axon,hydrogeologist - Source Water Protection; and David Hammermann, Geographic Information Systems Specialist.

The authors also thank the USGS report review team for their review of
the update procedures: Jeanne Robbins, Surface-water Specialist; Melinda Chapman, Ground-water Specialist; Mary Giorgino, Water-quality Specialist; and Douglas Harned, ALBE-National Water Quality Assessment Project Chief.

*Native dataset format: Raster Dataset
*Native data set environment:
Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.6.1500


Cross reference:
Citation information:
Originators: Silvia Terziotti and Jo Leslie Eimers


Title:
Watershed Characteristics Rating for North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-490

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01490/index.html


Cross reference:
Citation information:
Originators: Silvia Terziotti and Jo Leslie Eimers


Title:
Unsaturated Zone Characteristics Rating for North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-489

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01489/index.html


Cross reference:
Citation information:
Originators: Silvia Terziotti and Jo Leslie Eimers


Title:
Land-Use Classes to Characterize Watersheds and the Unsaturated Zone in North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-493

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01493/index.html


Cross reference:
Citation information:
Originators: Silvia Terziotti and Jo Leslie Eimers


Title:
Land-Cover Classes to Characterize the Unsaturated Zone in North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-491

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01491/index.html


Cross reference:
Citation information:
Originators: Silvia Terziotti and Jo Leslie Eimers


Title:
Percent-Slope Classes to Characterize the Unsaturated Zone in North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-495

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01495/index.html


Cross reference:
Citation information:
Originators: Jo Leslie Eimers, Silvia Terziotti and Gloria Ferrell


Title:
Vertical Series Hydraulic Conductance Classes to Characterize the Unsaturated Zone in North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-486

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01486/index.html


Cross reference:
Citation information:
Originators: Jo Leslie Eimers, Silvia Terziotti and Mary Giorgino


Title:
Estimated Depth to Water, North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-487

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01487/index.html


Cross reference:
Citation information:
Originators: Silvia Terziotti and Jo Leslie Eimers


Title:
Land-Cover Classes to Characterize Watersheds in North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-492

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01492/index.html


Cross reference:
Citation information:
Originators: Silvia Terziotti and Jo Leslie Eimers


Title:
Average Annual Precipitation Classes to Characterize Watersheds in North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-494

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01494/index.html


Cross reference:
Citation information:
Originators: Silvia Terziotti and Jo Leslie Eimers


Title:
Percent-Slope Classes to Characterize Watersheds in North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-496

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01496/index.html


Cross reference:
Citation information:
Originators: Silvia Terziotti and Jo Leslie Eimers


Title:
Ground-Water Contribution Classes to Characterize Watersheds in North Carolina


Publication date: 2001
Geospatial data presentation form: map


Series information:
Series name: USGS Open-File Report
Issue identification: USGS OFR 01-488

Publication information:
Publication place: Raleigh, NC
Publisher: USGS

Online linkage: http://nc.water.usgs.gov/reports/ofr01488/index.html


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Data Quality Information:


Attribute accuracy:
Attribute accuracy report:
The values for average annual rainfall are consistent with
other Weather Service maps showing rainfall patterns.

Logical consistency report:
Not applicable for raster data.

Completeness report:
The data is available for all of N.C. and adjacent States. As updated
data is available for more recent period of record, this data set
could be updated.

Positional accuracy:
Horizontal positional accuracy:
Horizontal positional accuracy report:
No checks were made on horizontal accuracy other than visual
checks with other data sources mapped at similar scales.

Lineage:
Source information:
Source citation:
Citation information:
Originators: Chris Daly, Oregon State University, George Taylor, Oregon Climate Service at Oregon State University


Title:
North Carolina Average Monthly or Annual Precipitation, 1961-90


Publication date: 199804
Geospatial data presentation form: map


Publication information:
Publication place: Portland, Oregon, USA
Publisher: Water and Climate Center of the Natural Resources Conservation Service

Source scale denominator: 800 m
Type of source media: online
Source citation abbreviation:
none
Source contribution:
average annual precipitation

Source time period of content:
Time period information:
Single date/time:
Calendar date: 1971 - 2007

Source currentness reference:
NOAA Weather Station period of record

Source information:
Source citation:
Citation information:
Originators: Daly, C.


Title:
Overview of the PRISM model, PRISM Climate Mapping Program


Publication date: 1996


Series information:
Series name: URL http://www.ocs.orst.edu/prism/prism_new.html
Issue identification: accessed March, 1999

Type of source media: paper
Source citation abbreviation:
Daly (1996)
Source contribution:
methods used to generate model

Source time period of content:
Time period information:
Single date/time:
Calendar date: 1996

Source currentness reference:
publication date

Source information:
Source citation:
Citation information:
Originators: Daly, C., Neilson, R. P., Phillips, D. L.


Title:
A statistical-topographic model for mapping climatological precipitation over mountainous terrain


Publication date: 1994


Series information:
Series name: Journal of Applied Meteorology
Issue identification: 33

Type of source media: paper
Source citation abbreviation:
Daly and others (1994)
Source contribution:
p. 40-158

Source time period of content:
Time period information:
Single date/time:
Calendar date: 1994

Source currentness reference:
publication date

Source information:
Source citation:
Citation information:
Originators: Eimers, J. L., Weaver, J. C., Terziotti, S., Midgette, R. W.


Title:
Methods of rating unsaturated zone and watershed characteristics of public water supplies in North Carolina


Publication date: 2000


Series information:
Series name: U. S. Geological Survey Water-Resources Investigations Report
Issue identification: WRIR-99-4283

Type of source media: paper
Source citation abbreviation:
Eimers and others (2000)
Source contribution:
methods

Source time period of content:
Time period information:
Single date/time:
Calendar date: 2000

Source currentness reference:
publication date

Process step:
Process description:
Created a 30-meter Grid data set of NC and adjacent states by resampling the 1971-2000 800 meter grid

Process date: 2009


Process step:
Process description:
Created a grid of each of the years 2001 through 2007

Process date: 2009


Process step:
Process description:
Create a mean grid of all years of data to get the average annual precipitation amounts from 1971 - 2007

Process date: 2009


Process step:
Process description:
Used the following remap table to change the classes to a rating
from 1 to 10. (Using the Arc/Info GRID command, SLICE, with the
TABLE option).
>40 : 1
>45 : 2
>50 : 3
>55 : 4
>60 : 5
>65 : 6
>70 : 7
>75 : 8
>80 : 9
>120 : 10
>

Process date: 2009


Process step:
Process description:
Metadata imported.

Source used citation abbreviation:
W:\SWAP_updates\Documents\Metadata\precipsw.xml


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Spatial Data Organization Information:


*Direct spatial reference method: Raster


Raster object information:
*Image format:
*Number of bands: 1


*Row count: 16160
*Column count: 28318
*Vertical count: 1


*Cell size X direction: 30.000000
*Cell size Y direction: 30.000000


*Bits per pixel: 8
*Pyramid layers: FALSE
*Image colormap: FALSE
*Compression type: Default


*Raster object type: Grid Cell
*Raster display type: matrix values
*Raster origin: Upper Left


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Spatial Reference Information:


Horizontal coordinate system definition:
Coordinate system name:
*Projected coordinate system name: NAD_1983_StatePlane_North_Carolina_FIPS_3200
*Geographic coordinate system name: GCS_North_American_1983

Planar:
Grid coordinate system:
*Grid coordinate system name: State Plane Coordinate System 1983
State Plane Coordinate System:
*SPCS zone identifier: 3200
Lambert conformal conic:
*Standard parallel: 34.333333
*Standard parallel: 36.166667
*Longitude of central meridian: -79.000000
*Latitude of projection origin: 33.750000
*False easting: 609601.220000
*False northing: 0.000000

Planar coordinate information:
*Planar coordinate encoding method: row and column
Coordinate representation:
*Abscissa resolution: 30.000000
*Ordinate resolution: 30.000000
*Planar distance units: meters

Geodetic model:
*Horizontal datum name: North American Datum of 1983
*Ellipsoid name: Geodetic Reference System 80
*Semi-major axis: 6378137.000000
*Denominator of flattening ratio: 298.257222

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Entity and Attribute Information:


Detailed description:
*Name: precipsw.vat


Entity type:
*Entity type label: precipsw.vat
*Entity type type: Table
*Entity type count: 10

Attribute:
Attribute label: Rowid
Attribute definition:
Internal feature number.
Attribute definition source:
ESRI

Attribute domain values:
Unrepresentable domain:
Sequential unique whole numbers that are automatically generated.


Attribute:
Attribute label: VALUE


Attribute:
Attribute label: COUNT


Attribute:
*Attribute label: PCT_TOT
*Attribute alias: PCT_TOT


*Attribute type: Single
*Attribute width: 4
*Attribute precision: 0
*Attribute scale: 0


Attribute:
*Attribute label: SQMI
*Attribute alias: SQMI


*Attribute type: Single
*Attribute width: 4
*Attribute precision: 0
*Attribute scale: 0


Overview description:
Entity and attribute overview:
>
>Value attribute table, PRECIPSW.VAT:
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  VALUE                  4    10     B      -
>    5  COUNT                  4    10     B      -
>    9  PCT_TOT                4     8     F      2
>   13  SQMI                   4     8     F      2
>
VALUE is rating: valid values are integers between 1 and 10, inclusive.
COUNT is the number of 30-meter by 30-meter cells in the entire data
set that have the rating.
PCT_TOT is the percent of the total area just within NC for each category.
SQMI is the conversion from 30 meter by 30 meter cells to square miles for just the NC portion of the study area.
>
>VALUE      COUNT  PCT_TOT     SQMI
>    1    3938485     0.60   320.77
>    2  173700622    38.83 20891.04
>    3  117104416    31.84 17131.79
>    4   52465471    18.51  9958.23
>    5   17335475     6.61  3555.14
>    6    5078301     1.17   626.98
>    7    3105866     0.80   431.70
>    8    1371126     0.42   224.21
>    9     880806     0.44   238.06
>   10     771423     0.48   259.11
>
>Summary Statistics Table, PRECIPSW.STA:
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  MIN                    8    15     F      3
>    9  MAX                    8    15     F      3
>   17  MEAN                   8    15     F      3
>   25  STDV                   8    15     F      3
>
MIN is the minimum value of item VALUE.
MAX is the maximum value of item VALUE.
MEAN is the average value of item VALUE.
STDV is the standard deviation of item VALUE.
>
>       MIN             MAX            MEAN            STDV
>     1.000          10.000           2.869           1.158
>

Entity and attribute detail citation:
none

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Distribution Information:


Distributor:
Contact information:
Contact organization primary:
Contact organization: U.S. Geological Survey
Contact position: Information Officer


Contact address:
Address type: mailing and physical address
Address:
3916 Sunset Ridge Rd.
City: Raleigh
State or province: NC
Postal code: 27607
Country: USA

Contact voice telephone: (919) 571-4000


Contact electronic mail address: gs-w-ncrlg_www@usgs.gov


Contact instructions:
Contact via email

Resource description: Downloadable Data


Distribution liability:
Although these data have been used by the U.S. Geological Survey,
U.S. Department of the Interior, no warranty expressed or implied
is made by the U.S. Geological Survey as to the accuracy of the
data.

The act of distribution shall not constitute any such warranty,
and no responsibility is assumed by the U.S. Geological Survey in
the use of this data, software, or related materials.

Standard order process:
Digital form:
Digital transfer information:
*Transfer size: 7.537
*Dataset size: 7.537

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Metadata Reference Information:


*Metadata date: 20090702
Metadata review date: 2001


*Language of metadata: en


Metadata contact:
Contact information:
Contact organization primary:
Contact person: North Carolina Water Science Center Director
Contact organization: U.S. Geological Survey
Contact position: Director


Contact address:
Address type: mailing and physical address
Address:
3916 Sunset Ridge Road
City: Raleigh
State or province: NC
Postal code: 27607
Country: USA

Contact voice telephone: (919) 571-4000
Contact facsimile telephone: (919) 571-4041


Contact electronic mail address: dc_nc@usgs.gov


*Metadata standard name: FGDC Content Standards for Digital Geospatial Metadata
*Metadata standard version: FGDC-STD-001-1998
*Metadata time convention: local time


Metadata access constraints: none
Metadata use constraints:
none


Metadata extensions:
Online linkage: http://www.esri.com/metadata/esriprof80.html
Profile name: ESRI Metadata Profile

Metadata extensions:
*Online linkage: http://www.esri.com/metadata/esriprof80.html
*Profile name: ESRI Metadata Profile

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