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Displaying 1-6 of 6 results for author "Clark, Allan K."
Vulnerability of ground water to contamination, Edwards aquifer recharge zone, Bexar County, Texas, 1998 / by Allan K. Clark ; in cooperation with the San Antonio Water System.
- Text
- Austin, Tex. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Branch of Information Services [distributor], 2000.
- 2000
- 1 Item
Item details Format Call Number Item Location Text JSF 01-416 Offsite Not available - Please for assistance.Geodatabase and characteristics of springs within and surrounding the Trinity Aquifer Outcrops in Northern Bexar County, Texas, 2010-11 / Allan K. Clark [and three others] ; prepared in cooperation with Trinity Glen Rose Groundwater Conservation District, Edwards Aquifer Authority, and San Antonio River Authority.
- Text
- Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2013.
- 2013
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo45241Geologic framework, structure, and hydrogeologic characteristics of the Knippa Gap area in eastern Uvalde and western Medina Counties, Texas / by Allan K. Clark, Diana E. Pedraza, and Robert R. Morris.
- Text
- Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2013.
- 2013
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo51427Geology and hydrostratigraphy of Guadalupe River State Park and Honey Creek State Natural Area, Kendall and Comal Counties, Texas / by Allan K. Clark, Charles D. Blome, and Robert R. Morris.
- Cartographic
- [Reston, VA] : U.S. Department of the Interior, U.S. Geological Survey, 2014.
- 2014
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo53551Geologic and hydrostratigraphic map of the Anhalt, Fischer, and Spring Branch 7.5-minute quadrangles, Blanco, Comal, and Kendall Counties, Texas / by Allan K. Clark and Robert R. Morris.
- Cartographic
- Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2015.
- 2015
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo59079Geologic framework and hydrogeologic characteristics in the southern part of the Rancho Diana Natural Area, northern Bexar County, Texas, 2008-10 / by Allan K. Clark and Robert R. Morris.
- Text
- Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2011.
- 2011
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo172275
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