20250221
13154600
1.0
FALSE
ENV_GMZ
168082.577900
228358.935200
50252.316600
204392.747000
1
002
Projected
GCS_WGS_1984
WGS_1984_Web_Mercator_Auxiliary_Sphere
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Linear Unit: Meter (1.000000)
20210330
10122100
20250903
13365100
5000000
5000
FGDC
Josh Kasper
DNREC - Division of Water
302-739-9945
89 Kings Hwy
Dover
De
19901
US
joshua.kasper@delaware.gov
20250903
ArcGIS Metadata
1.0
Delaware Division of Technology and Information - FirstMap
302-739-9560
801 Silver Lake Blvd
Dover
DE
19904
US
DTI_GIS@state.de.us
Enterprise Geodatabase Feature Class
Groundwater Management Zones & Groundwater Exclusion Zones
Josh Kasper, DNREC - Division of Water
vector digital data
2025-09-04T00:00:00
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Delaware Department of Natural Resources and Environmental Control (DNREC or Department) has determined that establishing a groundwater institutional control (IC) in the form of a Groundwater Management Zone (GMZ) or Groundwater Exclusion Zone (GEZ) is appropriate for monitoring new water supply well permitting and/or well placement/construction in areas where groundwater contamination has the potential to cause harm to public health, welfare, and the environment.</SPAN></P><P><SPAN>In October 2012, the DNREC Division of Waste and Hazardous Substances and Division of Water entered into a Memorandum of Agreement (MOA) to establish the authorities and appropriate use of GMZs and GEZs that would be consistent with the Delaware’s Comprehensive State Groundwater Protection Program (CSHWPP, 1997). </SPAN></P><P><SPAN>Data is Enterprise Geodatabase Feature Class made available from DNREC's Enterprise Geodatabase. </SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
GMZ/GEZ – Groundwater Management Zone/Groundwater Exclusion Zone areas where DNREC has established groundwater institutional control to monitor for contamination that has the potential to cause harm to public health, welfare, and the environment.
Josh Kasper
DNREC - Division of Water
302-739-9945
89 Kings Hwy
Dover
De
19901
US
joshua.kasper@delaware.gov
GMZ
Groundwater
DNREC
ISO 19115 Topic Categories
environment
planningCadastre
GMZ
GEZ
environment
Groundwater
DOW
WHS
cleanup
remediation
stewardship
waste
water
DNREC
DE
Delaware
FirstMap
The State of Delaware makes no warranty or representation, expressed or implied, with respect to the quality, content, accuracy, completeness, currency, or non-infringement of proprietary rights, of any of the GIS or other data or information, or any other materials and items, that are displayed or made available for download from this site. All such data, information, items and materials (collectively, the “FirstMap Data”) are provided "as is" and users are fully and solely responsible for any consequences of use. FirstMap Data may have been created from a variety of sources, including sources beyond the control of the State of Delaware, and are subject to change without notice. To the extent you use, apply, add to, modify or implement this information in your own information system or other setting, or otherwise for your own purposes, you do so at your own risk. In no event shall the State of Delaware or its agencies, officers, employees, agents, or representatives be liable for any damages of any kind or nature whatsoever including, but not limited to, direct, indirect, special, punitive, incidental, exemplary or consequential damages arising from your downloading, modifying, sharing, distributing, or using of FirstMap Data even if notified of the possibility of such damages. Further, the State of Delaware does not accept liability for any damages or misrepresentation caused by inaccuracies in the FirstMap Data or as a result of changes to the FirstMap Data, nor is there responsibility assumed to maintain the FirstMap Data in any manner or form.
Esri ArcGIS 12.7.0.26828
-75.788592
-75.090471
38.452421
39.841082
1
-75.789569
-75.085338
39.841153
38.452152
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data is provided by DNREC solely for display and reference purposes and is subject to change without notice. DNREC will not be held responsible for the assumed accuracy contained in the map or for use other than its intended purposes.</SPAN></P><P><SPAN>The State of Delaware makes no warranty or representation, expressed or implied, with respect to the quality, content, accuracy, completeness, currency, or non-infringement of proprietary rights, of any of the GIS or other data or information, or any other materials and items, that are displayed or made available for download from this site. All such data, information, items and materials (collectively, the “FirstMap Data”) are provided "as is" and users are fully and solely responsible for any consequences of use. FirstMap Data may have been created from a variety of sources, including sources beyond the control of the State of Delaware, and are subject to change without notice. To the extent you use, apply, add to, modify or implement this information in your own information system or other setting, or otherwise for your own purposes, you do so at your own risk. In no event shall the State of Delaware or its agencies, officers, employees, agents, or representatives be liable for any damages of any kind or nature whatsoever including, but not limited to, direct, indirect, special, punitive, incidental, exemplary or consequential damages arising from your downloading, modifying, sharing, distributing, or using of FirstMap Data even if notified of the possibility of such damages. Further, the State of Delaware does not accept liability for any damages or misrepresentation caused by inaccuracies in the FirstMap Data or as a result of changes to the FirstMap Data, nor is there responsibility assumed to maintain the FirstMap Data in any manner or form.</SPAN></P></DIV></DIV></DIV>
DNREC – Division of Water – Water Supply Section
DNREC – Division of Waste and Hazardous Substances – Remediation Section
0
ENV_GMZ
Feature Class
0
MOA_DOC
File directory for supporting documents
MOA Document
String
50
0
0
DNREC
MOUDATE
Date when Memorandum of Agreement (MOA) was signed, where applicable
Date of MOA
Date
8
0
0
DNREC
ZONE
Limitations within a specific GMZ/GEZ.; refer to the GMZ/GEZ-specific MOA for more information.
Zone
String
10
0
0
DNREC
PROGRAM
The Program origin: GWDS – Groundwater Discharge Section; GWPB – Groundwater Protection Branch; HSCA – Hazardous Substance Cleanup Act; MULTIPLE – Across multiple DNREC Programs: RS – Remediation Section;
TMB – Tank Management Branch; SWDS – Source Water Discharge Section
Program
String
10
0
0
DNREC
STATUS
Active – Active; Inactive – Inactive or Permanently Closed
Status
String
16
0
0
DNREC
ID
Number assigned
ID
Integer
4
10
0
DNREC
SHAPE
Feature geometry.
Esri
Coordinates defining the features.
SHAPE
Geometry
8
0
0
REVIEW
REVIEW
String
1
0
0
COMMENTS
General comments
Comments
String
50
0
0
DNREC
SITE_ID_
Program-specific identification number.
Site ID
String
10
0
0
DNREC
DNREC_OWNER_HYD_GMZ_AREA
DNREC_OWNER.HYD_GMZ.AREA
Double
8
38
8
SHAPE.AREA
SHAPE.AREA
Double
0
0
0
SHAPE.LEN
SHAPE.LEN
Double
0
0
0
MAXGW
A rating criteria to ensure review of well permit applications. The ratings should either trigger a review or not. '‐1' rating criteria there is not enough data
Groundwater Rating
Double
8
38
8
DNREC
SITENAME
Name of site or facility
Site Name
String
50
0
0
DNREC
PERIMETER
PERIMETER
Double
8
38
8
RESTRICTIO
pseudo or limitations
Restriction
String
100
0
0
DNREC
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
OBJECTID
OID
4
10
0
TYPE
Type
Pseudo GMZ is still under investigations; Official - Official MOA Signed); Grandfathered -
Grandfathered Official (No MOA Signed)
DNREC
Text
255
dataset
EPSG
6.18.3(9.3.1.2)
Simple
FALSE
0
TRUE
FALSE
Originally shared as the Groundwater Management Zones in the Permitting and Monitoring map service.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data is provided by DNREC solely for display and reference purposes and is subject to change without notice. DNREC will not be held responsible for the assumed accuracy contained in the map or for use other than its intended purposes.</SPAN></P></DIV></DIV></DIV>
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