Environmental and Geographic Analysis Database (EGAD)
- EDD/Laws/Info and Supporting Documents
- GIS Data Collection
- EGAD Map Data
- EGAD Data Disclaimer
- Types of Sites in EGAD
- Related Programs
The Maine Environmental and Geographic Analysis Database (EGAD) (formerly known as the Environmental and Groundwater Analysis Database) was originally designed to store site and water quality information and currently includes spatially located data for 39 different types of potential and actual sources of contamination to groundwater in Maine. Access to comprehensive up-to-date analytical data allows DEP to assess trends in regional ground water quality and quantity. It also improves automated analysis and map-making capability including rapid access to information for emergency response to hazardous materials spills. Detailed well and analytical information in the database is used by staff to design remedial action at hazardous spill sites. It is also used by staff to evaluate potential for cumulative impacts of real estate development on ground water quality.
Recent efforts to expand and improve EGAD have involved the inclusion of data from the Bureau of Land & Water Quality including the addition of 10 Biological and Surface Water Sampling site types. This is in addition to the data that continues to be included from the Bureau of Remediation & Waste Management. To encapsulate the new addition of data from Land & Water Quality and to acknowledge the spatial (GIS) component of the data, EGAD is now known as the Environmental and Geographic Analysis Database, as data in EGAD now includes a broad range of environmental data including physical, chemical, biological and spatial data.
Electronic Data Deliverable (EDD) and EGAD Questions, please contact:
Tracy Krueger (207) 287-5767 Tracy.Krueger@maine.gov
BRWM EGAD Data Manager
Susanne Meidel (207) 441-3612 Susanne.K.Meidel@maine.gov
BLWQ EGAD Contact
Mark Holden (207)-287-7779 Mark.K.Holden@maine.gov
EGAD Site Data Manager
John Lynam (207)-287-8426 John.Lynam@maine.gov
EGAD Spatial Data Manager
The EDD is a required standard template for laboratory and field data submittals to EGAD. Authority for this requirement is granted under Maine's Uniform Electronic Transaction Act, 10 M.R.S.A. §9418 (2) (A). The ME DEP Groundwater Database EDD version 4.0 (ME DEP GWDB EDD v4.0) was the standard used in the past. On October 1, 2007, ME DEP EDD Version 5.0 was released, and EDD Version 5.1 was released on June 10, 2010. The most current update, EDD version 5.2 was released on May 2, 2011. Either Version 5.0, 5.1 or 5.2 should be the format used for all data submissions.
EDD Version 5.2
- EDD Quick Reference Guide (PDF format) has been updated. The quick reference guide is designed to help outline special considerations when completing the EDD.
- EDD v5.2 Template for import into EGAD (Excel format) workbook containing EDD Info, EDD template for all chemical, field and physical measurement data and Data Elelment Dictionary.
- EGAD Lookup Tables (Excel 2010 format) contains all the lookup tables and their values contained in the EGAD Database. These values should be used to fill in the appropriate fields in the EDD file for submittal. The EGAD Lookup Tables are updated frequently as additional LUP values are added so check back often for the most up to date EGAD Lookup Tables.
- EDD Examples (Excel format) contains examples of EDDs filled out for different types of data including Laboratory, Field, Water Level & Flow, Non-Sample Data, and data for Samples Taken but Not Analyzed.
- Frequently Asked Questions (FAQs) About ME DEP EGAD EDDv5.2
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GIS Data Collection - guidance for submittal of spatial data to DEP
The EGAD Site locations, showing threats to groundwater and on-going environmental monitoring, can be viewed using Google Earth
EGAD data have been accepted by the DEP to meet project requirements. However, the DEP makes no guarantee as to the accuracy and completeness of the data. To ensure accuracy and authenticity of the data, original laboratory analytical reports and field sheets should be consulted. The DEP does not assume any responsibility for the nature in which the data are used.
EGAD contains data from a number of different sites including sites with Land Use Activities which are Potential and/or Actual Sources of Contamination and sites where Biological and Surface Water Sampling is conducted. Below is a link to an excel file containing definitions for all of the current EGAD Site Types.
EGAD Site Type Definitions (Excel format)
- Aboveground Storage Tanks
- Atlantic Salmon Rivers
- Dioxin Monitoring
- Groundwater (Water)
- Hazardous Waste/Universal Waste
- Solid Waste
- Surface Water Ambient Toxics Monitoring Program (SWAT)
- Underground Storage Tanks