Science Document Library - Edwards Aquifer Authority
P: (210) 222-2204 or 1-800-292-1047
Support EAC
Groundwater Users
Online Payments
Online Portal
Contact Us
Careers
Search...
MENU
About The EAA
History
EAA Timeline
Mission, Vision, Core Values
Jurisdiction
Board of Directors
Meetings & Agendas
Directors & Districts
Director Elections & Director Vacancies
Financial Reporting
Budgets and Annual Comprehensive Financial Report
Legislation & Rules
The EAA Act: A Success Story
EAA Rules
Proposed Rules
Intergovernmental Relations
Human Resources
EAA Careers & Info
Employment Verification Requests
Contact Us
Open Records Request
Executive Leadership
EAA Departments
Doing Business with EAA
Minority & Women Business Enterprise Program
Online Payments
Calendar of Events
Science & Aquifer Protection
Science & Maps
About the Edwards Aquifer
Aquifer Data
Water Level Monitoring
Rainfall Data
Weather Stations
Historical Water Level Chart
Critical Period Numbers Chart
Historical Data
Modeling Programs
Research & Scientific Reports
Hydrologic Data Reports
Interformational Flow Study
Science Document Library
Technical Briefings
Continuous Water Quality Monitoring
Scientific Lectures
Maps & Geographic Information Systems (GIS)
Regulatory Zone Maps
Shapefiles
Service Level Agreement – GIS
Aquifer Protection
Abandoned Well Program
Groundwater Protection
Conservation Easements
Edwards Aquifer State Resource Concern (EASRC)
Spill Reporting
Management of Regulated Substance Storage
Facility Registration, Storage, & Planning
Aboveground / Underground Storage Tanks
Agricultural Secondary Containment Assistance Program (AgSCAP)
News & Community
Newsroom
Aquifer Related News
News Drop
Podcast
Community
Habitat Conservation Plan
About EAHCP
Covered Species
Cultural Resources
Frequently Asked Questions
Administration
Implementing Committee
Implementing Committee Meeting Documents
Stakeholder Committee
Stakeholder Committee Meeting Documents
Science Committee
Science Committee Meeting Documents
Work Groups and Subcommittees
Biological Goals Subcommittee
Biological Objectives Subcommittee
Conservation Measures Subcommittee
Comal Springs Riffle Beetle Work Group
Research Work Group
Budget Work Group
Springflow Habitat Protection Work Group
Science Committee Vacancy Work Group
Adaptive Management
EAHCP Clarifications
EAHCP Calendar
Habitat Protection Measures
Flow Protection Measures
Supporting Measures
News & Information
Annual Summary of Activities
Documents & Publications
Permit Renewal
Education
Education Outreach Center
Educational Materials
Learning Zone
Meet the Educators
Multimedia Library
Virtual Classroom
Dive Inside
Map the Recharge Zone
Hands on Tools & Resources
EA Conservancy
Business Center
Manage My Groundwater Permit
Drought Management Critical Period
Meters
Manage My Well
Management of Regulated Substances
Cost Share – Grant Programs
Employment
Groundwater Permit Holder
Transfer – Buying, Selling, and Leasing Water Rights
Sellers Lessor List
Permit Holder List
Aquifer Storage and Recovery (ASR) Springflow Protection Forbearance Program
Voluntary Irrigation Suspension Program Option (VISPO)
Changes to Permit
Critical Period/Drought Management
Groundwater Conservation Plan (GCP)
Groundwater Conservation Grants
Reporting Your Use
Download Our Meter App
How to Read Your Water Meter
Automated Meter Reading
Helpful Information
Meter Accuracy Verification Testing Vendors
Wells
Well Owners
Well Closure Procedures
Well Construction
Well FAQs
Proper Well Maintenance
Compliance
Critical Period/Drought Management
Critical Period Management Tools
Critical Period Calculator
CPM Forecast Calculator
Online Reporting System
Meter Matters Smartphone App
Notice of Intent to Finish Out a Crop Calculator
Groundwater Conservation Plan (GCP)
Finance
Privacy Policy
Science Document Library
In observance of Thanksgiving Day, on Thursday, November 28th and Friday, November 29th the office will be closed.