Skip to the content Skip to main content
logo
  • Online Portal
  • Online Payments
  • News
  • Calendar
  • Careers
  • Conservancy
Search Icon
  • Groundwater Users
  • Aquifer Science
  • Aquifer Protection
  • Education
  • About
  • Edwards Aquifer
    Habitat Conservation Plan
  • Manage My Groundwater Permit
  • Online Payments
  • Online Portal
  • Groundwater Conservation Plan (GCP)
  • Groundwater Conservation Grants
  • VISPO (Voluntary Irrigation Suspension Program Option)
  • ASR (Aquifer Storage and Recovery)
  • Compliance & Enforcement
  • Groundwater Use Reporting
    • How to Read Your Meter
    • Automated Meter Reading
    • Meter Accuracy Verification
    • Meter Matters App
  • Transfer, Sell, Lease Water Rights
    • Permit Holders List
    • Buyers & Lessees List
    • Sellers & Lessors List
  • Critical Period/Drought Management (CPM)
    • Critical Period Calculator
    • Critical Period Forecast Calculator
    • End of the Year Critical Period Calculator
    • Critical Period Online Usage Reporting System
  • Wells
    • Well Registration and Updates
    • Well Maintenance & Inspection
    • Well Closure Procedures & Construction
    • Abandoned Well Program
  • Managing The Edwards Aquifer
  • About The Edwards Aquifer
  • Research
    • Projects
    • Science & Data Document Library
    • Modeling
  • Sustainability
    • Conservation Easements
    • Field Research Park
  • Maps & GIS
    • Regulatory Zone Maps
    • Shapefiles
    • Service Level Agreement – GIS
    • Calibrated Rain Maps
    • ArcGIS Online
  • Enhancing The Edwards Aquifer
  • Environmental Data Portal
  • Precipitation Enhancement Program
  • Abandoned Well Program
    • Report An Abandoned Well
  • Groundwater Protection
    • Edwards Aquifer State Resource Concern (EASRC)
  • Management of Regulated Substance Storage
    • Facility Registration, Storage & Planning
    • Aboveground/Underground Storage Tanks
    • Spill Reporting
  • Online Portal
  • Protecting The Edwards Aquifer
  • Learn About The Aquifer
    • Multimedia Library
  • Education Outreach Center
  • Learning Portals & At Home Learning
  • Meet The Educators
  • Virtual Classroom
    • Dive Inside
    • Map The Recharge Zone
    • Hands On Tools & Resources
  • History
    • Jurisdictions
    • Timeline
    • 25th Anniversary
  • Board of Directors
    • Meetings & Agendas
    • Director Elections
  • Executive Leadership
  • Divisions
    • Administration & Financial Services
    • Aquifer Management Services
    • Threatened & Endangered Species
    • External & Regulatory Affairs
    • Communications & Development
  • Human Resources
    • Careers
    • Benefits
    • Employment Verification
  • Doing Business with EAA
    • Minority & Women Business Enterprise
  • EAA Act
    • Rules and Proposed Rules
    • Intergovernmental Relations
  • Financial Reporting
  • Contact Us
  • Open Records Request
  • About EAHCP
    • Covered Species
    • Cultural Resources
  • Annual Summary of Activities
  • Permit Renewal
  • Committees, Subcommittees & Work Groups
    • Meetings & Agendas
    • Implementing Committee
    • Stakeholder Committee
    • Science Committee
    • Work Groups and Subcommittees
  • Adaptive Management
  • EAHCP Clarifications
  • Conservation Measures
    • Habitat Protection Measures
    • Flow Protection Measures
    • Supporting Measures
  • EAHCP News
  • EAHCP Calendar
  • Documents & Publications
conditions-iconAquifer Conditions

Nothing Found

CURRENT AQUIFER CONDITIONS
San Antonio Pool
Stage 4 pointed to on a meter
40% CURRENT REDUCTION
Uvalde Pool
Stage 5 pointed to on a meter
44% CURRENT REDUCTION
Caution icon
Critical Period/Drought Management
San Antonio (J17WL) 631.4 10 DAY AVERAGE
632.4
TODAY
632.8
YESTERDAY
Uvalde (J27WL) 834.2 10 DAY AVERAGE
834.8
TODAY
834.7
YESTERDAY
Comal 93 10 DAY AVERAGE
104
TODAY
106
YESTERDAY
San Marcos 99 10 DAY AVERAGE
101
TODAY
99
YESTERDAY

10-Year Annual Recharge Average (2013-2022) 553,230 acre-feet

  • Understanding the reading
  • Display our readings on your website

Provisional Daily Water Readings as of 14:45:19 PM, September 11, 2025

logo

CURRENT AQUIFER CONDITIONS

TODAY'S READINGS
UVALDE
J-27

834.8
FT. AMSL

Index Well

UVALDE POOL

Bexar
J-17

632.4
FT. AMSL

Index Well
Comal
Springs

104
CFS

Springflow
San Marcos
Springs

101
CFS

Springflow

SAN ANTONIO POOL

10 DAY AVERAGE

J-27 Well
834.2 FT. AMSL

J-17 Well
631.4 FT. AMSL

Comal Springs
93 CFS

San Marcos Springs
99 CFS

FT AMSL = feet above mean sea level

CFS: cubic feet per second

Uvalde Pool is in Stage 5: 44% reduction
San Antonio Pool is in Stage 4: 40% reduction
Understanding the levels, springflows, stages and reductions
CURRENT & HISTORIC AQUIFER CONDITIONS

Last updated: September 11, 2025

This calculator is only available December 31st - January 31st. Please check back on December 31, 2025, to calculate your reductions for the year.

Spotlight:: Meet Our Mascot!

The Texas Blind Salamander

Did you know that the Texas blind salamander is an indicator species? Since it depends on clean, stable groundwater to survive, it’s like a frontline reporter that lets us know how clean and safe our water is.

Click Here for More Information

Edwards Aquifer Authority logo
  • Twittertwitter X logo
  • InstagramInstagram logo
  • Facebookfavebook logo
  • Linkedinlinked in logo
  • Pinterestpinterest logo
  • Youtubeyoutube icon
Contact Us

900 E. Quincy
San Antonio, TX 78215

(210) 222-2204
1-800-292-1047

Become an EAA News Drop Magazine Subscriber!

Subscribe
  • Groundwater Users
  • Aquifer Science
  • Aquifer Protection
  • Education
  • About
  • Online Portal
  • Online Payments
  • News
  • Calendar
  • Careers

© 2025 EDWARDS AQUIFER AUTHORITY Privacy Policy

Edwards Aquifer Conservancy logo EAHCP logo EOC logo
Online Payments

As part of a comprehensive effort to streamline processes for our permit holders and the regulated community, the EAA now offers an online payment program that allows individuals and business entities to pay for their transactions by credit card (American Express, Discover, MasterCard, or VISA) or by electronic check.

The payment site is operated and maintained by a secure, third party, payment processor. A convenience fee of 2.75% applies to all credit card transactions (a $2 minimum fee) and a $2.00 fee applies to e-check transactions. The EAA does not keep any portion of these convenience fees. After confirmation of payment, the EAA will coordinate internally to ensure your payment is posted to the correct account. This process may take up to 72 hours.

Proceed to Online Payments

Modal Box for Announcements As Needed

Modal Box for Announcements As Needed. Modal Box for Announcements As Needed

Learn More About This