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Springs Reports

Springs Reports

The following reports are published by external entities and include information about the San Marcos Springs, San Marcos River and Edwards Aquifer. 

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Date Title Author
2017
Title
EAA 2016 Water Quality Summary
EAA
2017
Title
EAA Hydrologic Data Report 2016 Discharge
EAA
2013
Title
Underwater Geoarchaeology at Spring Lake, San Marcos, Texas
Hooge, Jacob
2013
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2012 Annual Report
BIO-WEST Inc
2012
Title
Tracing Groundwater Flowpaths in the Vicinity of San Marcos Springs, Texas
S Johnson, G Schindel, G Veni, N Hauwert, B Hunt, B Smith, & M Gary
2012
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2011 Annual Report
BIO-WEST Inc
2011
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2010 Annual Report
BIO-WEST Inc
2010
Title
Final Report for Deep Aquifer Biota Study of the Edwards Aquifer
Zara Environmental LLC
2010
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2009 Annual Report
BIO-WEST Inc
2009
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2008 Annual Report
BIO-WEST Inc
2008
Title
Survey and Distribution of Invertebrates from Selected Springs of the Edwards Aquifer in Comal and Hays Counties, Texas
James R. Gibson, Scott J. Harden and Joe N. Fries
2008
Title
Evaluation of the Option to Designate a Separate San Marcos Pool for Critical Period Management
SB Johnson & GM Schindel
2008
Title
Simulated Impacts Associated with the Cibolo Creek Transfers Using MODFLOW-NR and Senate Bill 3 Assumptions
LBG-Guyton Associates
2008
Title
Recharge and Recirculation / Edwards Aquifer Optimization Program Phase III / IV Report Final
Todd Engineers
2008
Title
Variable Flow Study - Seven Years of Monitoring and Applied Research
Gary MO, Gary RH & Asquith WH
2008
Title
Streamflow Conditions in the Guadalupe River Basin, South-Central Texas, Water Years 1987-2006-An Assessment of Streamflow Gains and Losses and Relative Contribution of Major Springs to Streamflow
Ockerman DJ & Slattery RN
2008
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2007 Annual Report
BIO-WEST Inc
2007
Title
Variable Flow Study - Seven Years of Monitoring and Applied Research
T Arsuffi et al
2007
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2006 Annual Report
BIO-WEST Inc
2006
Title
Summary of 2005 Groundwater Dye Tracing, Barton Springs Segment of the Edwards Aquifer, Hays and Travis Counties, Central Texas
Hunt, B. B., B. A. Smith, J. Beery, D. A. Johns, & N. M. Hauwert
2006
Title
Edwards Aquifer Authority Hydrologic Data Report for 2005
Hamilton M, Johnson S, Mireles J, Esquilin R, Burgoon C, Luevano G, Gregory D, Gloyd R, Sterzenback J, Mendoza R, & Schindel GM
2006
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2005 Annual Report
BIO-WEST Inc
2006
Title
Final report as required by the Endangered Species Program, Texas: grant no. E-38-HP: endangered and threatened species conservation: habitat conservation planning for the development of the Edwards Aquifer Authority habitat conservation plan
Bob Hall (Edwards Aquifer Authority)
2005
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2004 Annual Report
BIO-WEST Inc
2005
Title
Analysis of Recharge and Recirculation Edwards Aquifer Phase 2
Todd Engineers
2005
Title
Diversion Spring Cave
Krejca JK
2005
Title
Habitat conservation planning for development of the Edwards Aquifer Authority Habitat Conservation Plan: grant no. E-38-HP: grant program, Section 6 habitat conservation plan planning assistance
Bob Hall (Edwards Aquifer Authority)
2004
Title
Analysis of Recharge and Recirculation Edwards Aquifer Phase 1
Todd Engineers
2004
Title
Evaluation of Augmentation Methodologies in Support of In-Situ Refugia at Comal and San Marcos Springs, Texas
LBG-Guyton Associates, BIO-WEST, Inc., Espey Consultants, Inc. & URS Corp
2004
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2003 Annual Report
BIO-WEST Inc
2004
Title
Aquatic Vegetation Laboratory Study: Phase 1: Observations of water quality changes and plant growth under various flows. Phase 2: Effects of carbon dioxide level on aquatic plants found in the Comal and San Marcos Springs/River Ecosystems. Final Report Variable Flow Study: Project 802, Task 27 San Marcos National Fish Hatchery & Technology Center, San Marcos, Texas
BIO-WEST Inc
2003
Title
Archaeological Testing of the Burleson Homestead at 41HY37 Hays County, Texas
Bousman, C. Britt & David L. Nickels
2003
Title
Conduits and Turbulent Flow in the Edwards Aquifer
Steve Worthington
2003
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2002 Annual Report
BIO-WEST Inc
2002
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2001 Annual Report
BIO-WEST Inc
2002
Title
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2001 Annual Report Appendix C: Drop Net Raw Data
BIO-WEST Inc
2001
Title
Water Quality/Variable Flow Study Summary of Fall Quarterly Sampling San Marcos River, San Marcos, Texas October 24-November 2, 2000
PBS&J
2001
Title
Edwards Aquifer Hydrogeologic Report for 2000
Esquilin R, Lillibridge BC, Mahula DM, Mireles J, Hoyt JR & Schindel G
2001
Title
A Statistical Study of the Hydrological Character of the Edwards Aquifer
Tomasko D, Fisher A-M, Williams GP & Pentecost ED (Argonne National Laboratory)
2000
Title
Appendix B A Report Investigating Impacts of Aquifer Pumping Limits on Flow of Comal Springs and San Marcos Springs
LBG-Guyton Associates
1999
Title
Optimization Technical Studies in Support of the Edwards Aquifer Optimization Program
Todd Engineers
1996
Title
Trans-Texas Water Program West Central Study Area Phase I Interim Report Volume 4
HDR Engineering Inc, Paul Price Associates Inc, LBG-Guyton Associates, Espey-Huston & Associates, Inc & HB Zachry Company , San Antonio River Authority, San Antonio Water System, Edwards Underground Water District, Guadalupe-Blanco River Authority, Lowe
1995
Title
Springflow Augmentation of Comal Springs and San Marcos Springs, Texas: Phase I - Feasibility Study
McKinney, Daene C., & Sharp, John M.
1995
Title
Geologic Framework and Hydrogeologic Characteristics of the Edwards Aquifer Outcrop, Hays County, Texas
Hanson JA & Small TA
1994
Title
Trans-Texas Water Program West Central Study Area Phase I Interim Report Volume 1
HDR Engineering Inc, Paul Price Associates Inc, LBG-Guyton Associates & Espey-Huston & Associates, Inc, San Antonio River Authority, San Antonio Water System, Edwards Underground Water District, Guadalupe-Blanco River Authority, Bexar Metropolitan Water
1994
Title
Trans-Texas Water Program West Central Study Area Phase I Interim Report Volume 2
HDR Engineering Inc, Paul Price Associates Inc, LBG-Guyton Associates & Espey-Huston & Associates Inc, San Antonio River Authority, San Antonio Water System, Edwards Underground Water Distric, Guadalupe-Blanco River Authority, Bexar Metropolitan Water
1994
Title
Trans-Texas Water Program West Central Study Area Phase I Interim Report Volume 3
HDR Engineering Inc, Paul Price Associates Inc, LBG-Guyton Associates & Espey-Huston & Associates, Inc , San Antonio River Authority, San Antonio Water System, Edwards Underground Water District, Guadalupe-Blanco River Authority, Lower Colorado River Authority
1994
Title
Edwards Aquifer Ground-Water Divides Assessment, San Antonio Region, Texas
LBG-Guyton Associates
1992
Title
Investigation of the Fresh/Saline Water Interface in the Edwards Aquifer in New Braunfels and San Marcos, Texas - Report
Poteet D, Collier H & Maclay R
1990
Title
Edwards Underground Water District, San Marcos Testing, Hays County, Texas
J Garber & WD Driver
1988
Title
Regional Water Resources Plan for the Edwards Aquifer
City of San Antonio and Edwards Underground Water District
1986
Title
Hydrochemistry of the Comal, Hueco, and San Marcos Springs, Edwards Aquifer, Texas
Ogden, A. E., Quick, R. A., Rothermel
1981
Title
Springs of Texas
Brune, Gunnar
1979
Title
Geohydrology of Comal, San Marcos, and Hueco Springs
Guyton, W.F., & Associates
1978
Title
Status of Satan Eurystomus Hubbs and Bailey, The Widemouth Blindcat
Longley, Glenn, & Karnei, Henry Jr
1978
Title
Status of Trogloglanis Pattersoni Eigenmann, The Toothless Blindcat
Longley, Glenn, & Karnei, Henry Jr.,
1975
Title
Major and Historical Springs of Texas
Brune, Gunnar