Four Corner - Texas Water Development Board

Bend County. The report's contents may not be relied upon by any other party without the
express written permission ofHVJ Associates.
The report's findings are based on conditions that existed on the date of HVJ Associates' site
visit and available records and should not be relied upon to precisely represent conditions at any
other time.
HVJ Associates has based the conclusions included in this report on its observation of existing
site conditions, its interpretation of available geological and geotechnical studies, and its
interpretation of the site usage information it was able to access. It is possible that HVJ
Associates' research, while fully appropriate for a Geotechnical Reconnaissance Study, failed to
indicate the existence of important information sources. Assuming such sources actually exist,
their information could not have been considered in the formulation ofHVJ Associates' findings
and opinions. All conclusions are qualified by the fact that no borings were made and no soil,
sediment, or groundwater sampling or testing was conducted. Conclusions about site conditions
under no circumstances comprise a warranty that conditions in all areas within the site and study
area (and below existing grade) are of the same quality that HVJ Associates has inferred from
observable site conditions and readily available site history.
HVJ Associates' findings and opinions must be considered probabilities based on professional
judgment applied to the limited data HVJ Associates was able to gather during the course of this
study.
REFERENCES
The following references were used to compile this report:
• Clodine, Texas 7.5 Minute Topographic Quadrangle Map, United States Geological
Survey, 1982.
• Richmond, Texas 7.5 Minute Topographic Quadrangle Map, United States
Geological Survey, 1980.
• Houston, Texas 30 by 60 minute Topographic Quadrangle Map, United States
Geological Survey, 1992.
• Approximate Land-Surface Subsidence in the Houston-Galveston Region, Texas
1906-78, 1943-78, and 1973-78, Open File Report 80-338, United States Geological
Survey, March 1980.
• Effect of Water-Level Recoveries on Fault Creep, Houston, Texas, T.L. Holzer and
R.K. Gabrysch. Ground Water, July-August, Vol. 25, No.4, 1987.
• Faults in Parts of North-Central and Western Houston Metropolitan Area, Texas.
E.R. Verbeek, K.W. Ratzlaff, and U.S. Clanton, U.S.G.S. Miscellaneous Field Studies
Map MF-1136, 1979.
• Focus on Subsidence, Harris-Galveston Coastal Subsidence District, Spring 1993.
With supplemental data to 1994.
• Geologic Atlas of Texas, Houston Sheet, Bureau of Economic Geology, University of
Texas at Austin, 1982.
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