Well Head Protection Areas For Public Non-Community Water Supply Wells In New Jersey

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
New Jersey Department of Environmental Protection NJDEP, New Jersey Geological Survey NJGS
Publication_Date: 20040405
Title:
Well Head Protection Areas For Public Non-Community Water Supply Wells In New Jersey
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Digital Geodata Series
Issue_Identification: DGS04-5
Publication_Information:
Publication_Place: Trenton, New Jersey
Publisher: New Jersey Geological Survey
Online_Linkage: <http://www.state.nj.us/dep/njgs/geodata/dgs04-5.htm>
Larger_Work_Citation:
Citation_Information:
Description:
Abstract:
A Well Head Protection Area for a Public Non-Community Water Supply Well (PNCWS) in New Jersey is a map area calculated around a Public Non-Community Water Supply well that delineates the horizontal extent of ground water captured by a well pumping at a specific rate over a two-, five-, and twelve-year period.  GIS coverages are produced for each PNCWS well and for the set of all PNCWS wells in each county and for the state. The individual, county and state coverages are prepared for distribution as uncompressed ARC/INFO export files.  The export files are combined with parameter-reference files for each county in compressed 'zip' files for delivery over the Internet.  Public Non-Community Water Supply Well Head Protection Area downloads therefore include line and polygon GIS coverages with associated database files, and parameter-reference files for data documentation. The documentation files are ASCII text files having the 'txt' extension.  WHPA delineation methods are described in "Guidelines for Delineation of Well Head Protection Areas in New Jersey" available as a download at www.state.nj.us/dep/njgs/whpaguide.pdf.
Purpose:
Public Non-Community Well Head Protection Area delineations are conducted in response to the Safe Drinking Water Act Amendments of 1986 and 1996 as part of the Source Water Area Protection Program (SWAP). The delineations are the first step in defining the sources of water to a public supply well.  Within these areas, potential contamination will be assessed and appropriate monitoring will be undertaken as subsequent phases of the NJDEP SWAP.
Supplemental_Information:
A Public Non-Community Water Supply Well is a public water supply well used by individuals other than year-round residents for at least sixty days of the year. A non-community water supply well can be either transient or nontransient. A nontransient non-community water supply well serves at least twenty-five of the same people over a period of six months during the year, such as schools, factories, and office buildings. A transient non-community water supply well is a well that serves year around for at least sixty days of the year, but does not serve the same individuals during that time period. Transient non-community water supply wells include rest stop areas, restaurants, and motels.

Note: This metadata references the Public Non-Community Water Supply Well Head Protection Areas (njncwhpa) coverage for the entire state.

Note: These coverages were mapped at a scale of 1:24,000.

Note: For a listing of Public Non-Community Water Supply delineations in New Jersey see the link on the downloads page.

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20040405
Currentness_Reference: publication date
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -75.587306
East_Bounding_Coordinate: -73.890363
North_Bounding_Coordinate: 41.357564
South_Bounding_Coordinate: 38.924819
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Well Head Protection Areas
Theme_Keyword: Wells
Theme_Keyword: Drinking Water
Theme_Keyword: Source Water Protection Areas
Theme_Keyword: Tier
Theme_Keyword: Time of Travel
Theme_Keyword: Public non-community
Theme_Keyword: Delineation
Theme_Keyword: Ground water
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Place:
Place_Keyword_Thesaurus: USGS Place Names Gazeteer
Place_Keyword: New Jersey
Place_Keyword: State of New Jersey
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: Aquifer
Access_Constraints: None
Use_Constraints:
New Jersey Department of Environmental Protection (NJDEP) Data Distribution Agreement

I. Description of Data to be Provided.

The data provided herein are distributed subject to the following conditions and restrictions:

SUBJECT DATA LAYERS

For all data contained herein, NJDEP makes no representations of any kind, including, but not limited to, the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the digital data layers furnished hereunder. NJDEP assumes no responsibility to maintain them in any manner or form.

II. Terms of Agreement

1.Digital data received from the NJDEP are to be used solely for internal purposes in the conduct of daily affairs.

2.The data are provided, as is, without warranty of any kind and the user is responsible for understanding the accuracy limitations of all digital data layers provided herein, as documented in the accompanying cross-reference files (see Section 1.14 CROSS-REFERENCE). Any reproduction or manipulation of the above data must ensure that the coordinate reference system remains intact.

3. Digital data received from the NJDEP may not be reproduced or redistributed for use by anyone without first obtaining written permission from the NJDEP. This clause is not intended to restrict distribution of printed mapped information produced from the digital data.

4. Any maps, publications, reports, or other documents produced as a result of this project that utilize NJDEP digital data will credit the NJDEP's Geographic Information System (GIS) as the source of the data with the following credit/disclaimer:

"This (map/publication/report) was developed using New Jersey Department of Environmental Protection Geographic Information System digital data, but this secondary product has not been verified by NJDEP and is not state-authorized."

5. Users shall require any independent contractor, hired to undertake work that will utilize digital data obtained from the NJDEP, to agree not to use, reproduce, or redistribute NJDEP GIS data for any purpose other than the specified contractual work.

All copies of NJDEP GIS data utilized by an independent contractor will be required to be returned to the original user at the close of such contractual work. Users hereby agree to abide by the use and reproduction conditions specified above and agree to hold any independent contractor to the same terms. By using data provided herein, the user acknowledges that terms and conditions have been read and that the user is bound by these criteria.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ted Pallis
Contact_Organization:
New Jersey Department of Environmental Protection, New Jersey Geological Survey
Contact_Position: Geographic Information Systems Specialist
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 427
City: Trenton
State_or_Province: NJ
Postal_Code: 08625
Country: US
Contact_Voice_Telephone: 609 984-6587
Contact_Facsimile_Telephone: 606 633-1004
Contact_Electronic_Mail_Address: ted.pallis@dep.state.nj.us
Hours_of_Service: 9-5
Contact_Instructions:
Written Requests sent to: State Geologist New Jersey Geological Survey P.O Box 427 Trenton, NJ 08625-0420
Browse_Graphic:
Browse_Graphic_File_Name: <http://www.state.nj.us/dep/njgs/geodata/dgs04-5.htm#image>
Browse_Graphic_File_Description: image
Browse_Graphic_File_Type: html image
Data_Set_Credit:
The NJDEP Bureau of Safe Drinking Water was responsible for collecting and surveying by Global Positioning System (GPS) the majority of locations used in this dataset to create the public non-community well head protection areas. The New Jersey Geological Survey was responsible for locating wells by GPS in parts of Burlington, Warren and Essex Counties. Please contact the Bureau of Safe Drinking Water with any questions regarding data collection for this data set.
Security_Information:
Security_Classification_System: none
Security_Classification: Sensitive
Security_Handling_Description: none
Native_Data_Set_Environment:
Microsoft Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcCatalog 8.3.0.800

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Each polygon (tier) was visually checked on printed maps to quality control the tier values.
Logical_Consistency_Report:
These coverages were generated based on point coordinates (well locations) of PNCWS wells which were located using the Global Positioning System (GPS) and tested against known benchmarks. The GPS locations have an accuracy of plus or minus 40 feet in any direction from the mapped location.
Completeness_Report:
The delineations included in the data set are subject to change. At the time of publication all available information provided to the New Jersey Geological Survey about public non-community water supply wells has been processed. There are some public non-community water supply wells in New Jersey which are not available in this data set. They will be included as updates when the information is processed. Check the NJGS website periodically for information regarding updates.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: none
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: none
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
New Jersey Department of Environmental Protection, New Jersey Geological Survey
Publication_Date: 20040405
Title:
Well Head Protection Areas For Public Non-Community Water Supply Wells In New Jersey
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Digital Geodata Series
Issue_Identification: DGS04-5
Publication_Information:
Publication_Place: Trenton, NJ
Publisher: NJGS
Online_Linkage: http//www.state.nj.us/dep/njgs/geodata/dgs04-5.htm
Source_Scale_Denominator: unknown
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: PNCWS database
Source_Contribution: The well locations were obtained from the PNCWS database.
Process_Step:
Process_Description:
The WHPA delineations for public non-community water supply wells were generated from a Microsoft Access database created with data from the NJDEP Bureau of Safe Drinking Water and the New Jersey Geological Survey. The database was constructed with all of the available well construction information, depths and pumping rates available for the wells. A statistical analysis was done for each county by NJGS to determine the median values for the depth and pumping rate. These values were assigned to those wells for which the depth and pumping rate were unknown. In addition, the porosity was determined by overlaying the Microsoft Access database of well points after being converted into an ESRI point shapefile onto a surficial geologic map. Those wells in rock aquifers were assigned a value of 0.02 for the porosity and those in unconsolidated aquifer were assigned a value of 0.25. The CFR's for 2, 5 and 12 years were then calculated using the equations:

((pumping rate * time) / (porosity * 3.1415 * depth))^0.5

(([Q]*192.5*730)/([porosity]*3.1415*[depth]))^0.5 2 year CFR

(([Q]*192.5*1825)/([porosity]*3.1415*[depth]))^0.5 5 year CFR

(([Q]*192.5*4380)/([porosity]*3.1415*[depth]))^0.5 12 year CFR

An ASCII text file was then created from this database. The text file consisted of the Bureau of Safe Drinking Water ID number, location, tier 1 cfr, tier 2 cfr and tier 3 cfr. This file was processed using a BASIC program (Noncom.exe) which created the file format needed for importing the data into ARC/INFO. In ARC/INFO the GENERATE command was used to create the delineations. The noncom.exe program was developed by NJGS for creating the PNCWS delineations.

Each WHPA coverage was built as both a line and a polyon coverage having both arc and polygon attributes for the three Time of Travel (TOT) tiers. The public non-community water supply well head protection areas state coverage (njcnwhpa) and the 20 county coverages were processed using the UNION command in ARC/INFO to create the state and county coverages from the individual coverages.

The available construction and pumping information used to create these WHPA delineations are available in the associated PNCWS point shapefile available by request from the State Geologist, N. J. Geological Survey, Box 427, Trenton, NJ 08625

Process_Date: 20040405
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ted Pallis
Contact_Organization:
New Jersey Department of Environmental Protection, New Jersey Geological Survey
Contact_Position: Geographic Information Systems Specialist
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 427
City: Trenton
State_or_Province: New Jersey
Postal_Code: 08625
Country: US
Contact_Voice_Telephone: 609 984-6587
Contact_Facsimile_Telephone: 609 633-1004
Contact_Electronic_Mail_Address: ted.pallis@dep.state.nj.us
Hours_of_Service: 9-5
Cloud_Cover: n/a

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Complete chain
Point_and_Vector_Object_Count: 61827
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Label point
Point_and_Vector_Object_Count: 29229
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 29229
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 4

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 2900
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999900
Longitude_of_Central_Meridian: -74.500000
Latitude_of_Projection_Origin: 38.833333
False_Easting: 492125.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.002048
Ordinate_Resolution: 0.002048
Planar_Distance_Units: survey feet
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

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: njncwhpa.pat
Entity_Type_Definition:
Well Head Protection Areas For Public Non-Community Water Supply Wells In New Jersey
Entity_Type_Definition_Source: New Jersey Geological Survey
Attribute:
Attribute_Label: FID
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: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: AREA
Attribute_Definition: Area of feature in internal units squared.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 12.2041
Range_Domain_Maximum: 91123200
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of feature in internal units.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 15.9718
Range_Domain_Maximum: 71747.5
Attribute:
Attribute_Label: NJNCWHPA#
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: NJNCWHPA-ID
Attribute_Definition: User-defined feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: ESRI generated field value
Attribute:
Attribute_Label: TIER
Attribute_Definition: Time of travel to the well.
Attribute_Definition_Source: New Jersey Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: 2 year time of travel of water to the well.
Enumerated_Domain_Value_Definition_Source: New Jersey Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: 5 year time of travel of water to the well.
Enumerated_Domain_Value_Definition_Source: New Jersey Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition: 12 year time of travel of water to the well.
Enumerated_Domain_Value_Definition_Source: New Jersey Geological Survey
Overview_Description:
Entity_and_Attribute_Overview: none
Entity_and_Attribute_Detail_Citation: none

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ted Pallis
Contact_Organization:
New Jersey Department of Environmental Protection, New Jersey Geological Survey
Contact_Position: Geographic Information Systems Specialist
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 427
City: Trenton
State_or_Province: New Jersey
Postal_Code: 086725
Country: US
Contact_Voice_Telephone: 609 984-6587
Contact_Facsimile_Telephone: 609 633-1004
Contact_Electronic_Mail_Address: ted.pallis@dep.state.nj.us
Hours_of_Service: 9-5
Contact_Instructions:
Written Requests sent to: State Geologist New Jersey Geological Survey P.O Box 427 Trenton, NJ 08625-0420
Resource_Description:
Well Head Protection Areas For Public Non-Community Water Supply Wells In New Jersey.
Distribution_Liability:
This organization provides the geographic data as is. This organization makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. Also, this organization makes no warranty either expressed or implied, regarding the condition of the product or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these files have been processed successfully on computers at this organization, no warranty is made by this organization regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
Format_Version_Number: 8.3
File_Decompression_Technique: .zip
Transfer_Size: 19.776
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://www.state.nj.us/dep/njgs/geodata/index.htm>
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: ISO 9660
Fees: none
Ordering_Instructions: Downloadable from New Jersey Geological Survey website.
Custom_Order_Process:
Contact: State Geologist New Jersey Geological Survey 29 Arctic Parkway P.O. Box 427 Trenton, NJ 08625-0420
Technical_Prerequisites:
GIS software capable of importing ESRI interchange files and viewing coverages.
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20040405

Metadata_Reference_Information:
Metadata_Date: 20050106
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ted Pallis
Contact_Organization:
New Jersey Department of Environmental Protection, New Jersey Geological Survey
Contact_Position: Geographic Information Systems Specialist
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 427
City: Trenton
State_or_Province: New Jersey
Postal_Code: 08625
Country: USA
Contact_Voice_Telephone: 609 984-6587
Contact_Facsimile_Telephone: 609 633-1004
Contact_Electronic_Mail_Address: ted.pallis@dep.state.nj.us
Hours_of_Service: 9-5
Contact_Instructions:
Written Requests sent to: State Geologist New Jersey Geological Survey P.O Box 427 Trenton, NJ 08625-0420
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_Security_Information:
Metadata_Security_Classification: Sensitive
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.7.33 on Thu Jan 06 11:59:04 2005