Well Head Protection Areas For Public Community Water Supply Wells In New Jersey, Edition 20250701 (Hydr_water_well_WHPA_pc)
Metadata:
Identification Information:
Citation:
Citation Information:
Originator: New Jersey Department of Environmental Protection NJDEP, New Jersey Geological and Water Survey NJGWS
Publication Date: 20250701
Title: Well Head Protection Areas For Public Community Water Supply Wells In New Jersey, Edition 20250701 (Hydr_water_well_WHPA_pc)
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Digital Geodata Series
Issue Identification: DGS02-2
Publication Information:
Publication Place: New Jersey Department of Environmental Protection
Publisher: New Jersey Geological and Water Survey
Online Linkage: http://www.state.nj.us/dep/njgs/geodata/dgs02-2.htm
Online Linkage: https://gisdata-njdep.opendata.arcgis.com
Description:
Abstract: A Well Head Protection Area (WHPA) is both an area modeled around an unconfined Public Community Water Supply (PCWS) well in New Jersey that delineates the horizontal extent of groundwater captured by a well pumping at a
specific rate over two-, five-, and twelve-year periods of time for unconfined wells and a fifty foot radius delineated around each confined PCWS well (This corresponds to the water purveyor controlled wellhead area as
defined in the Safe Drinking Water Regulations (see NJAC 7:10-11.7(b)1)). WHPA delineations are created in compliance 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. The WHPAs were previously defined using line and polygon coordinate files and the Arc/INFO Generate command. Individual WHPAs were then combined into county and statewide coverages
with the Arc/INFO Union command. The WHPAs are currently created using the same coordinate files using a Python-based feature creation script producing an ArcGIS geodatabase feature. The individual features are then
combined using ArcGIS merge command. Previous WHPA coverages were updated to features also and combined into a statewide WHPA feature. The WHPA feature is distributed as either an ArcGIS shapefile or a layerpack file. The
2011 and earlier WHPA delineation methods are described in "Guideline for Delineation of Well Head Protection Areas in New Jersey" available as a download at http://www.state.nj.us/dep/njgs/whpaguide.pdf. Due to security
consideration, the PCWS well features are not available for direct download but may be requested from the NJDEP.
Purpose: WHPA delineations are created in compliance to the Safe Drinking Water Act Amendments of 1986 and 1996.
Supplemental Information: Note: OBJECTID, shape, shape_length, shape_area are default system variables. TIER is the item that is used for labeling the tiers of the WHPA delineations. TIER 1 is 2 year time of travel, Tier 2 is 5 year time of
travel, Tier 3 is 12 year time of travel. WELLID is a unique identifier or each WHPA. Alias if the item used to match each WHPA to the PCWS point feature database. Pre 2009, the ID was the permit #. From 2010 on, the
WELLID is a sequential number starting with the year they were created. Note: The data was mapped at a scale of 1:24,000.
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 20250701
Currentness Reference: publication date
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -75.571497
East Bounding Coordinate: -73.965882
North Bounding Coordinate: 41.318327
South Bounding Coordinate: 38.941259
Keywords:
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: wells
Theme Keyword: NJDEP
Theme Keyword: Hydr_water_well_WHPA_pc
Theme Keyword: public community water supply
Theme Keyword: well head protection areas
Theme Keyword: njwhpa
Theme Keyword: geology
Theme Keyword: time of travel
Theme Keyword: protection
Theme Keyword: aquifer
Theme Keyword: delineation
Theme Keyword: tier
Theme Keyword: source water protection areas
Theme Keyword: pcws
Theme Keyword: ground water
Theme Keyword: drinking water
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Category
Theme Keyword: environment
Place:
Place Keyword Thesaurus: USGS Place Names Gazetteer
Place Keyword: New Jersey
Place Keyword: State of New Jersey
Access Constraints: A downloadable version of this layer is also available. See https://gisdata-njdep.opendata.arcgis.com/ to explore NJDEP's downloadable GIS dataset collection.
Use Constraints: New Jersey Department of Environmental Protection (NJDEP) Data Distribution Agreement. The data provided herein are distributed subject to the following conditions and restrictions: NJDEP assumes no responsibility to
maintain them in any manner or form and disclaims any duty or obligation to either maintain availability of or to update the data. Terms of Agreement 1. All data is provided, as is, without any representation or warranty of
any kind, implied, expressed or statutory including, but not limited to, the warranties of non-infringement of third party rights, title, merchantability or fitness for a particular use, freedom from computer virus nor are
any such warranties to be implied with respect to the digital data layers furnished hereunder. User is responsible for understanding the accuracy limitations of all digital data layers provided herein, as documented in the
accompanying cross-reference files (see SUPPLEMENTAL INFORMATION). Any reproduction or manipulation of the above data must ensure that the coordinate reference system remains intact. 2. Digital data received from the NJDEP
may not be reproduced or redistributed without all the metadata provided. 3. Any maps, publications, reports, or other documents produced as a result of this project that utilize this 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 or endorsed." 4. NJDEP makes no warranty that digital data are free of Copyright or Trademark claims or other
restrictions or limitations on free use or display. Making a copy of this data may be subject to the copyright of trademark laws.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: New Jersey Department of Environmental Protection, New Jersey Geological and Water Survey
Contact Person: Alexander Roccaro
Contact Position: Geologist
Contact Address:
Address: Mail Code: 29-01 P. O. Box 420
City: Trenton
State or Province: New Jersey
Postal Code: 08625-0420
Contact Electronic Mail Address: alexander.roccaro@dep.nj.gov
Contact Instructions: Written Requests sent to: State Geologist Mail Code: 29-01 P. O. Box 420, Trenton, NJ 08625-0420
Browse Graphic:
Browse Graphic File Name: http://www.state.nj.us/dep/njgs/geodata/dgs02-2.htm
Browse Graphic File Description: Map showing well head protection areas for public community water supply wells in New Jersey.
Browse Graphic File Type: GIF
Data Set Credit: Jim Boyle, Ted Pallis, Eric Roman, Yelena Stroiteleva, Mark French, Ed Apalinski, Bob Canace, Steve Johnson, Bill Mennel, Steve Spayd.
Security Information:
Security Classification System: none
Security Classification: Unclassified
Security Handling Description: none
Native Data Set Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333
Cross Reference:
Citation Information:
Originator: New Jersey Department of Environmental Protection, New Jersey Geological and Water Survey
Title: Well Head Protection Areas For Public Community Water Supply Wells In New Jersey
Geospatial Data Presentation Form: document
Series Information:
Series Name: Digital Geodata Series
Issue Identification: DGS02-2
Publication Information:
Publication Place: Trenton, NJ
Publisher: New Jersey Geological Survey
Other Citation Details: Written Requests sent to: State Geologist Mail Code: 29-01 P. O. Box 420, Trenton, NJ 08625-0420
Data Quality Information:
Attribute Accuracy:
Attribute Accuracy Report: Each polygon (tier) was visually checked on screen to quality control the tier values.
Logical Consistency Report: The geodatabase feature was generated based on point coordinates (well locations) of pcws wells which were located using Global Positioning System (GPS) and tested against known benchmarks. The GPS locations are accurate to
within plus or minus 40 feet in any direction. The methodology of how the tiers were generated is documented in the "Guidelines for Delineation of Well Head Protection Areas in New Jersey" available as a download at:
http://www.state.nj.us/dep/njgs/whpaguide.pdf
Completeness Report: No information on the features represented regarding omissions, selection criteria, generalization, definitions used, and other rules used to derive the data set.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: Contact NJGS
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: New Jersey Department of Environmental Protection, New Jersey Geological and Water Survey
Publication Date: 19970202
Title: Public Community Water Supply Wells In New Jersey
Geospatial Data Presentation Form: document
Series Information:
Series Name: Digital Geodata Series
Issue Identification: DGS97-1
Publication Information:
Publication Place: Trenton, NJ
Publisher: New Jersey Geological and Water Survey
Source Scale Denominator: 24000
Type of Source Media: None
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 19970202
Source Currentness Reference: publication date
Source Citation Abbreviation: pcws geodatabase feature
Source Contribution: The well locations were obtained from the New Jersey Geological Survey Puvlic Community Water Supply Wells database.
Process Step:
Process Description: All coverages converted to gedatabase feature classes. The statewide feature was created using merge instead of union. 32 new wells added, five deleted.
Process Date: 20160509
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: NJ Geological and Water Survey (NJGWS)
Contact Person: Pallis, Ted
Contact Position: Geographic Information Systems Specialist 1
Contact Address:
Address Type: unknown
Address: 25-35 Arctic Pkwy
City: Ewing Twp
State or Province: NJ
Postal Code: 08638
Contact Voice Telephone: 609-984-6587
Contact Electronic Mail Address: Ted.Pallis@dep.nj.gov
Contact Instructions: via email
Process Step:
Process Description: The WHPA delineations were; until 2011; exclusively created using the methods outlined in "Guidelines for Delineation of Well Head Protection Areas in New Jersey" available as a download at
. Coordinate files delineating each WHPA boundary were generated using a custom MS-DOS program on-file at the offices of the N.J. Geological Survey. The resultant
coordinate files are formatted as comma delineated ASCII-text and contain line coordinate pairs for each of the groundwater time of travel tiers. Up until 2011, coverages were generated with the Arc/INFO Generate
command having both arc (line) and polygon attributes for the three Time of Travel (TOT) tiers. County and statewide WHPA coverages were created using the Arc/INFO Union command. The coverages were then converted to
shapefiles. After 2015, the existing individual WHPA coverages were converted to ArcGIS geodatabase features into county feature classed. These features were combined into county-based and then a statwide WHPA feature
using the ArcGIS Merge command. New WHPA geodatabase features are generated using an Arc/GIS Python-based, feature-creation script. Each new WHPA is merged into the existing statewide feature. WHPA delineations are
considered to have an accuracy of plus or minus 40 feet in any direction from the mapped location. WHPA delineations for wells completed in the glacial sand and gravel aquifer were clipped to a custom hydrologic
boundary. Sand and gravel aquifers occur where deposits are more than 50 feet thick. The hydrologic boundary is generated as a 2000 foot buffer around the polygon representing the contact of the sand and gravel aquifer
for those areas where the aquifer is less than 50 feet thick. This distance was selected based on an average distance between the 50 and 100 foot thickness contours of the sand and gravel aquifer. The average inter
contour distance was doubled to provide a conservative estimate of the thickness variation. Therefore, any portion of the WHPA delineation that lies beyond this extent is clipped. For the confined wells a fifty foot
buffer was used to delineate the well head protection area. Note: Since 2009, the permit number naming system has changed in the Bureau of Water Allocation winthin the New Jersey Department of Environmental Protection.
Because of this, a new alias number is given as the WELLID for each individual well head protection area delineated and is not directly related to the permit number for the well. A web page with the information for new
wells can be found at the following link: http://www.nj.gov/dep/njgs/geodata/whpafilelist.htm. After 2015 a new ALIAS field allows each WHP to be joined to its associated PCWS well. Due to security consideration, the
PCWS well features are not available for direct download but must be requested from the NJDEP.
Process Date: 20170801
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: New Jersey Department of Environmental Protection, New Jersey Geological and Water Survey
Contact Person: Mark French
Contact Position: Geographic Information Systems Specialist
Contact Address:
Address Type: unknown
Address: Mail Code: 29-01 P. O. Box 420
City: Trenton
State or Province: New Jersey
Postal Code: 08625-0420
Contact Voice Telephone: 609-984-6587
Contact Facsimile Telephone: 609-633-1004
Contact Electronic Mail Address: mark.french@dep.nj.gov
Process Step:
Process Description: This replaces the state unioned file. Some definitions have changed including ID's, year and number. No more permits numbers in the ID.
Process Date: 20170803
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: NJ Geological Survey (NJGS)
Contact Person: Pallis, Ted
Contact Position: Geographic Information Systems Specialist 1
Contact Address:
Address Type: unknown
Address: 25-35 Arctic Pkwy Eshap/Land Use
City: Ewing Twp
State or Province: NJ
Postal Code: 08638
Contact Voice Telephone: 609-984-6587
Contact Electronic Mail Address: Ted.Pallis@dep.nj.gov
Contact Instructions: via email
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: 6288
Spatial Reference Information:
Horizontal Coordinate System Definition:
Planar:
Grid Coordinate System:
Grid Coordinate System Name: State Plane Coordinate System 1983
State Plane Coordinate System (SPCS):
SPCS Zone Identifier: 2900
Entity and Attribute Information:
Detailed Description:
Entity Type:
Entity Type Label: Hydr_water_well_WHPA_pc
Entity Type Definition: Well Head Protection Areas For Public Community Water Supply Wells In New Jersey
Entity Type Definition Source: New Jersey Geological Survey
Attribute:
Attribute Label: OBJECTID
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: TIER
Attribute Definition: Item used for labeling the tiers.
Attribute Definition Source: NJGS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Tier 1
Enumerated Domain Value Definition: 2 year time of travel.
Enumerated Domain Value Definition Source: NJGS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Tier 2
Enumerated Domain Value Definition: 5 year time of travel.
Enumerated Domain Value Definition Source: NJGS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Tier 3
Enumerated Domain Value Definition: 12 year time of travel.
Enumerated Domain Value Definition Source: NJGS
Attribute:
Attribute Label: WELLID
Attribute Definition: Computer Generated Value
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: unique value
Overview Description:
Entity and Attribute Overview: See overview.
Entity and Attribute Detail Citation: None
Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: New Jersey Department of Environmental Protection, New Jersey Geological and Water Survey
Contact Person: Ted Pallis
Contact Position: Geographic Information Systems Specialist
Contact Address:
Address Type: unknown
Address: Mail Code: 29-01 P. O. Box 420
City: Trenton
State or Province: NJ
Postal Code: 08625
Contact Voice Telephone: (609) 984-6587
Contact Facsimile Telephone: (609) 633-1004
Contact Electronic Mail Address: ted.pallis@dep.nj.gov
Contact Instructions: Written Requests sent to: State Geologist New Jersey Geological Survey Mail Code: 29-01 P. O. Box 420, Trenton, NJ 08625-0420
Resource Description: Downloadable Data
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: Layer package file (LPK)
Format Version Number: 10.5.1
Transfer Size: 91.619
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: http://www.state.nj.us/dep/njgs/geodata/
Fees: none
Ordering Instructions: See "Custom Order Process"
Turnaround: none
Metadata Reference Information:
Metadata Date: 20250701
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: New Jersey Department of Environmental Protection, New Jersey Geological and Water Survey
Contact Person: Alexander Roccaro
Contact Position: Geologist
Contact Address:
Address: Mail Code: 29-01 P. O. Box 420
City: Trenton
State or Province: New Jersey
Postal Code: 08625-0420
Contact Electronic Mail Address: alexander.roccaro@dep.nj.gov
Contact Instructions: Written Requests sent to: State Geologist Mail Code: 29-01 P. O. Box 420, Trenton, NJ 08625-0420
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
Metadata Use Constraints: New Jersey Department of Environmental Protection (NJDEP) Data Distribution Agreement. The data provided herein are distributed subject to the following conditions and restrictions: NJDEP assumes no responsibility to maintain
them in any manner or form and disclaims any duty or obligation to either maintain availability of or to update the data. Terms of Agreement 1. All data is provided, as is, without any representation or warranty of any kind,
implied, expressed or statutory including, but not limited to, the warranties of non-infringement of third party rights, title, merchantability or fitness for a particular use, freedom from computer virus nor are any such
warranties to be implied with respect to the digital data layers furnished hereunder. User is responsible for understanding the accuracy limitations of all digital data layers provided herein, as documented in the accompanying
cross-reference files (see SUPPLEMENTAL INFORMATION). Any reproduction or manipulation of the above data must ensure that the coordinate reference system remains intact. 2. Digital data received from the NJDEP may not be
reproduced or redistributed without all the metadata provided. 3. Any maps, publications, reports, or other documents produced as a result of this project that utilize this 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 or endorsed." 4. NJDEP makes no warranty that digital data are free of Copyright or Trademark claims or other restrictions or
limitations on free use or display. Making a copy of this data may be subject to the copyright or trademark laws.
Metadata Security Information:
Metadata Security Classification System: None
Metadata Security Classification: Unclassified
Metadata Security Handling Description: None