PHASE I ENVIRONMENTAL SITE ASSESSMENT
PRELIMINARY GEOTECHNICAL STUDY
TWO ACRE PARCEL OF LAND
LOCATED AT THE SOUTHWEST CORNER
OF 200 SOUTH AND 1200 EAST STREET
ST. GEORGE, UTAH
Prepared for:
MR. ROBERT A. BROOKS
BROOKS DEVELOPMENT CO., L.L.C.
260 NORTH ROCK ROAD., SUITE 260
WICHITA, KANSAS 67206
JOB NO. S1248 NOVEMBER 18,1996
[DELTA GEOTECHNICAL CONSULTANTS, INC. LETTERHEAD GOES HERE]
November 18, 1996
Mr. Robert A. Brooks L.L.C.
260 North Rock Road / Suite 260
Wichita, KS 67206
Subject: Phase I Environmental Site and Preliminary Geotechnical Study
Two Acre Parcel of Land, Located at the Southwest Corner of
200 South and 1200 East Street St. George, Utah
Dear Mr. Brooks:
We have completed our Phase I Environmental Site Assessment and preliminary
Geotechnical Study for the two acre parcel of vacant land located on the
southwest corner of 200 South Street and 1200 East Street in St. George, Utah.
The study was conducted in accordance with our contractual agreement of October
22, 1996. Details of our findings and conclusions are included in the attached
report.
If you have questions or need additional information, please call.
Very truly yours,
DELTA GEOTECHNICALICAL CONSULTANTS, INC.
/S/ Hovik Baghoomian
HOVIK BAGHOOMIAN, P.E., Ph. D.
President
HB:cdv
Submitted in 3 copies
TABLE OF CONTENTS
PAGE
EXECUTIVE SUMMARY .............................................. i
1.0 INTRODUCTION ............................................ 1
2.0 SCOPE OF SERVICES ....................................... 1
3.0 SITE DESCRIPTION ......................................... 3
3.1 Description of Structures and Improvements ...... 3
3.2 Information Provided by the Client .............. 3
3.3 Surrounding Properties .......................... 4
3.4 Past Uses of the Site and Surrounding Properties . 4
4.0 RECORDS REVIEW
4.1 Topography ..................................... 4
4.2 Geology ......................................... 4
4.3 Hydrology ...................................... 5
4.4 Aerial Photograph Review ....................... 6
4.5 Federal and State Regulatory Records Review ..... 6
4.5.1 CERCLIS Databases ...................... 6
4.5.2 NPL Database .......................... 7
4.5.3 RCRA Database .......................... 8
4.5.4 ERNS Database .......................... 8
4.5.5 PADS Database .......................... 9
4.5.6 TRI Database ........................... 9
4.5.7 SSTS Database ......................... 9
4.5.8 TSCA Database ......................... 9
4.6 State of Utah Regulatory Records Review ......... 10
4.6.1 SWLF Database ......................... 10
4.6.2 LUST Database .......................... 10
4.6.3 UST Database ........................... 11
4.7 Local Records Review ............................ 11
5.0 SITE RECONNAISSANCE .................................. 11
5.1 Hazardous Substances at the Site ............. 12
5.2 Polychlorinated Biphenyis (PCBS) ............. 12
6.0 INTERVIEWS
6.1 Owners and Occupants Interviews ................ 12
6.2 Government Officials Interviewed ............... 13
7.0 SUMMARY OF ENVIRONMENTAL FINDINGS AND CONCLUSIONS ...... 13
8.0 RECOMMENDATIONS ........................................ 13
9.0 CLOSURE ................................................ 14
10.0 PROPOSED CONSTRUCTION .................................. 14
11.0 SUBSURFACE CONDITIONS .................................. 14
12.0 FOUNDATION RECOMMENDATIONS ............................ 15
TABLE OF CONTENTS (cont)
13.0 LIMITATIONS ......................................... 16
14.0 SOURCES OF INFORMATION .............................. 18
APPENDIX A: VICINITY MAP AND SITE PLAN
APPENDIX B: WATER RIGHTS POINTS OF DIVERSION PLOT AND LOCATION PRINTOUT
APPENDIX C: DATABASE SEARCH REPORT
EXECUTIVE SUMMARY
ENVIRONMENTAL PHASE I SITE ASSESSMENT
A Phase I Environmental Site Assessment was conducted in conformance with
the scope and limitations of ASTM Practice E-1527-94 for the 2 acre parcel of
land located at the Southwest corner of 200 South St. and 1200 East St. in St.
George, Utah. Our scope of work included: (1) review of records from
appropriate federal, state, and local regulatory agencies and private sources to
assess the site environmental history (2) interviews with persons familiar with
the site to assess past land uses and the potential for environmental
contamination (3) a site reconnaissance to view accessible land and structures
and (4) preparation of this report. This assessment has revealed no evidence of
recognized environmental conditions in connection with the property. Details of
the findings and conclusions are included in the attached report.
GEOTECHNICAL SITE ASSESSMENT
A preliminary Geotechnical study conducted at this site revealed that
slightly moisture sensitive soils underlie the parcel. Conventional spread
footings resting on structural fill is recommended for building support. Details
of the findings and conclusions are included in the attached report.
i
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Project Number S1248
1.0 INTRODUCTION
This report presents the results of a Phase I Environmental Site Assessment
and Preliminary Geotechnical Study conducted on an approximately 2 acre site
located on the southwest corner of 200 South St. and 1200 East St. The objective
of the environmental assessment was to identify, to the extent feasible pursuant
to the processes prescribed in the ASTM Practice E-1527-94, recognized
environmental conditions in connection with the property. Recognized
environmental conditions, as defined by ASTM Practice E-1527-94, are the
presence or likely presence of hazardous substances or petroleum products on the
property under conditions that indicate an existing release, a past release, or
a material threat of a release into structures, the ground, ground water, or
surface water of the property. The term is not intended to include de minimis
conditions that generally do not present a material risk of harm to public
health or the environment and that generally would not be the subject of an
enforcement action if brought to the attention of appropriate governmental
agencies.
The purpose of our preliminary geotechnical study was to provide information
on subsurface conditions, preliminary recommendations for foundation types and
depths, soil bearing capacities, and other construction considerations
influenced by the subsoil conditions.
2.0 SCOPE OF SERVICES
The scope of our services consisted of performing a Standard Phase I
Environmental Assessment following ASTM Standard E-1527-94 along with a
preliminary Geotechnical Study, as presented in Delta Geotechnicals Proposal No.
SP394 dated October 21, 1996. Our work included the following:
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November 18, 1996
Project Number S1248
ENVIRONMENTAL PHASE I STUDY ASSESSMENT
Records Review
Review of aerial photographs, published maps and other available
documents to determine historic land use.
Review of available documents containing information regarding the
physical site setting.
Search of U. S. Environmental Protection Agency (EPA), Utah Department
of Environmental Quality (UDEQ), and local regulatory agency records to evaluate
the possible presence of hazardous substances on or near the property.
Interviews
Interviews of owners, occupants, and governmental officials, to verify
and expand on data collected from the sources discussed above.
Site Reconnaissance
Reconnaissance of the site to evaluate its present condition, with
emphasis on environmental issues such as:
-Visible evidence of underground or aboveground storage tanks
-Refuse and waste handling procedures
-Drainage conditions, waste water, stains, sumps, and pits
-Identification of equipment containing possible polychlorinated
biphenyls (PCB's)
-Hazardous materials and their use, storage, and disposal
Report
Interpretation of the data collected and preparation of this report.
PRELIMINARY GEOTECHNICAL STUDY
Site reconnaissance
Subsurface exploration and sampling
Laboratory testing
Engineering analysis
Preparation of this report
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Project Number S1248
3.0 SITE DESCRIPTION
The site is about 2 acres in size, generally rectangular in shape, and was
vacant at the time of our field study. It appears that the majority of the
native vegetation has been grubbed and stockpiled just south of the site. Due
to the existence of young vegetation, we estimate that grubbing occurred between
I and 2 years ago. A 1 to 3-foot deep drainage ditch runs diagonally from the
northwest corner to the center of the property. It appears that this ditch
drains excess storm water from the adjacent Interstate-15 freeway. Several
small stockpiles dot the parcel. These stockpiles were covered with soil and we
were unable to determine if the center of the pile contained debris, soil,
and/or vegetation. The site and surrounding facilities are shown on the
Vicinity Map and Site Plan included in Appendix A as Figure A-1 and Figure A-2,
respectively.
3.1 Description of Structures and Improvements
At the time of our visit, the site was void of any structures. As described
above, the majority of the native vegetation has been grubbed from the site.
About 1 to 5 feet of fill was placed along the east edge of the property as
indicated on Figure A-2. It is suspected that this fill was placed during road
construction of 1200 East Street.
3.2 Information Provided by the Client
The client informed us that the subject site is the northern half of a 4
acre vacant parcel of land located between 200 South St. and 300 South St. and
between 1200 East St. and the I-15 freeway. The site is zoned R-3 and is
located adjacent to several condominiums and townhomes. An area map was
provided to us prior to field work.
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3.3 Surrounding Properties
The site is surrounded by the I-15 freeway right-a-way on the west, raw land
(which will be 200 South St. in the future) to the north, 1200 East Street to
the East, and vacant land to the south. The surrounding structures consist of
townhomes located east of 1200 East Street and condominiums located south of the
southern vacant lot. See Figure A-2 for location of the site with respect to
adjoining properties.
3.4 Past Uses of the Site and Surrounding Properties
Based on a review of aerial photographs and conversations with persons
familiar with the site. It appears that the property has been vacant since at
least 1960. The surrounding properties have primary been vacant until
approximately 4 to 5 years ago when the townhomes/condominiums located east of
1200 East Street were constructed.
4.0 RECORDS REVIEW
4.1 Topography
The ground slopes down gently to the south with an elevation drop across the
site of about 8 feet. The average elevation is approximately 2,740 feet above
mean sea level, according to the U.S. Geological Survey topographic maps. No
unusual features or concerns were identified from these maps.
4.2 Geology
The Site is located within the St. George Basin, a complex geological region
consisting of lava flows and alluvial deposits. The subject parcel is situated
on an alluvial deposit that stretches from the north end of the City of St.
George south to the Virgin River.
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The site is between the Washington Fault, about 3.5 miles to the east, and
the Grand Wash Fault, about 12.5 miles to the west. The more active Hurricane
Fault is approximately 13.5 miles to the east (Christenson and Deen, 1983).
4.3 Hydrology
Surface drainage on the site appear to be fair due to the slight slope of
the ground surface. Because the near surface soils are sandy, the majority of
the water running along the surface would most likely percolate down through the
upper loose soils. As described earlier, a 1 -to 3 -foot deep drainage ditch
runs diagonally through the center of the property. This ditch drains excess
storm water from the 1-15 freeway. The amount or frequency of water that this
ditch carries is not known.
A detailed study of the subsurface hydrology has not been conducted in this
area. Christenson and Deen (1983) suggest that most of the groundwater found in
the St. George Basin is contained in an unconfined aquifer system with a highly
variable total dissolved solids level (144 to 6860 mg/1) with averages around
1,400 mg/I. The depth to this suggest unconfined aquifer is not given. It has
been our experience in this area that groundwater is typically around 10 feet
below the ground surface. We did not encountered groundwater during our
geotechnical investigation, but we did encounter a dry calcareous layer that is
traditionally known to carry groundwater. Regional groundwater flow is to the
south; however, the local groundwater flow direction may be somewhat influenced
by the presence of local factors such as water extraction from points of
diversion as shown in Appendix B. The National Oceanic and Atmospheric
Administration reports that the average yearly rainfall for the area is about 8
inches.
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4.4 Aerial Photograph Review
Historical aerial photographs at the U.S. Bureau of Land Management's office
located in St. George, were viewed as part of the site assessment. These
included photos from 1960 through 1984. The following photographs were
reviewed:
DIH 7-AA, #33 & 34 6/25/60
WESD 5-18, #7 & 8 5/30/76
156-55 9/7/84
The following summarizes our photo review observations:
The 1960 photographs showed the site and surrounding areas as raw land. It
appears that the property was not used for farming purpose. We were unable to
determine if the property was used as cattle or horse pasture. The 1976
photograph also showed the site and surrounding properties as raw land with the
exception of the I-15 freeway. There was no noticeable change in the site and
surrounding areas between the 1976 and 1984 photographs.
The review of aerial photographs indicates that the site was vacant since
the 1960's.
4.5 Federal and State Regulatory Records Review
An Environmental Record Report database search was reviewed in an attempt to
identify properties which may affect the subject site. See Appendix B for a
copy of the database information and a detailed description of the data sources
included in the report.
4.5.1 CERCLIS AND NPL Databases
The Comprehensive Environmental Response, Compensation, and Liability
information System (CERCLIS) list is a compilation by the EPA of known or
suspected uncontrolled or
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abandoned hazardous waste sites, which the EPA has investigated, or is currently
investigating for a release or threatened release of hazardous substances
pursuant to the Comprehensive Environmental Response, Compensation and Liability
Act of 1980 (CERCLA, Superfund Act). The EPA's CERCLA program provides for
liability, compensation, cleanup, and emergency response for hazardous
substances released into the environment, and for the cleanup of inactive or
uncontrolled hazardous waste sites. As part of this program, sites meeting
certain criteria are required to notify the EPA and are cataloged on the CERCLIS
database. Once a site enters CERCLA, it may be subjected to several levels of
review and evaluation, and ultimately placed on the NPL. While it has been
determined by the EPA that some CERCLA sites require no action, others could
well pose a real or perceived environmental threat to neighboring properties,
thus impacting property values. The Utah Department of Environmental Quality
(UDEQ) provides the public with information concerning inactive and abandoned
hazardous waste sites.
The review of EPA listings of locations subject to investigation concerning
contamination of soil, surface water, or groundwater (CERCLIS List) identified
no CERCLA sites located within a one mile radius from the subject site.
4.5.2 NPL Database
The National Priorities (superfund) List (NPL) is EPA's list of the most
serious uncontrolled or abandoned hazardous waste sites identified for possible
long-term remedial action under Superfund. A site must be on the NPL to receive
money from the Trust Fund for remedial action. The list is based primarily on
the score a site receives from the Hazard Ranking System. A site, to be
included on the NPL, must either meet or surpass a predetermined hazard ranking
system score,
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or be chosen as a state's top priority site, or meet all three of the following
criteria: (1) the U.S. Department of Health and Human Services (HHS) issues a
health advisory recommending that people be removed from the site to avoid
exposure; (2) EPA determines that the site represents a significant threat; and
(3) EPA determines that remedial action is more cost effective than removal
action. EPA is required to update the NPL at least once a year.
The review of EPA listing did not identify any federal Superfund (National
Priority List) sites within one mile of the subject site.
4.5.3 RCRA Database
The EPA's Resources Conservation and Recovery Act (RCRA) Program, identifies
and tracks hazardous waste from the point of generation to the point of
disposal. The RCRA Notifiers are those sites which have filed notification
forms with the EPA in accordance with RCRA requirements regarding their
generation, store, transportation, treatment, or disposal of hazardous waste.
These sites include: treatment, storage and disposal sites (RCRA-TSD);
transporters; and large (RCRA-LG) and small generators (RCRA-SG) of hazardous
wastes regulated under RCRA. These sites, while they represent some form of
hazardous waste activity, are most significant if they are determined to be out
of compliance with regulation established pursuant to RCRA. There are no RCRA
sites reported within a one-mile radius of the site.
4.5.4 ERNS Database
The Emergency Response Notification System (ERNS) is a national database
that is used to store information concerning the sudden and/or accidental
release of hazardous substances, including petroleum, into the environment.
The ERNS reporting system contains preliminary information on
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specific releases, including the spill location, the substance released, and the
responsible party. The ERNS indicates that there were no reported releases near
the subject property.
4.5.5 PADS Database
The PCB Activity Data Base System PADS identifies generators, transporters,
commercial storers and/or brokers and disposers of PCBs that are required to
notify the EPA of such activities. The subject property is not a PADS site.
4.5.6 TRI Database
The Toxic Release Inventory (TRI) contains information regarding facilities
which manufacture, process, or import any of the over 300 listed toxic chemicals
which are released directly into the air, water or land or are transported off
site. There are no TRI facilities located within a half-mile radius of the
property.
4.5.7 SSTS Database
The Section Seven Tracking System (SSTS) tracks the registration of all
establishments and tracks annually the types and amounts of pesticides, active
ingredients, and devices which are sold, produced or distributed. The subject
property is not a SSTS site.
4.5.8 TSCA Database
The Toxic Substances Control Act (TSCA) Inventory identifies manufactures
and importers of chemical substances included on the TSCA Chemical Substances
Inventory list. It includes data on the projection volume of these substances
by plant site. The database is no longer released by the EPA but is useful to
identify previous processing and manufacturing plants. The subject property is
not a TSCA site.
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Project Number S1248
4.6 State of Utah Regulatory Records Review
An Environmental Record Report database search was also reviewed in an
attempt to identify properties which may affect the subject site. See Appendix
B for a copy of the database information and a detailed description of the data
sources included in the report.
4.6.1 SWLF Database
The Utah Solid Waste Disposal Facilities (SWF) list is a comprehensive
listing of all permitted solid waste landfills and processing facilities
operating within the State of Utah. The database did not reveal the presence of
solid waste facilities within one-half mile of the subject property.
4.6.2 LUST Database
The Utah Leaking Underground Storage Tank (LUST) report is a comprehensive
listing of all reported active and inactive LUSTs located within the State of
Utah. The LUST database was reviewed to determine if there are known LUSTs
near the subject site or in the surrounding area. According to the database
there are 3 LUST sites located within one-half mile radius of the site. The
sites are listed as follows:
Between One-eighths and One-Quarter Mile
No sites listed.
Between One-Quarter and One-Half Mile
Mont's Texaco, 915 East St. George Blvd (located 0.44 miles northwest)
H&H Shell Oil, 880 East St. George Blvd (located 0.48 miles northwest)
Surfast #1, 875 East St. George Blvd, (located 0.48 miles northwest)
The records search indicates that the Surfast #1 site was closed on 7/12/95.
The current status on the other 2 sites is not known at this time. Due to the
distance and direction of the
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LUST sites in comparison to the subject site, we feel that the probability of
the contamination due to these LUST sites is low.
4.6.3 UST Database
The Underground Storage Tank (UST) report is a summary listing of all
registered active and inactive underground storage tanks located within the
State of Utah. The database which was reviewed lists no sites within
one-quarter mile of the site.
4.7 Local Records Review
Delta Geotechnical contacted individuals or reviewed records at various
county, state, and local offices for additional information concerning
historical land use and potential environmental issues relating to the area
surrounding the subject site. Environmental health officials contacted,
indicated that other than the previously mentioned events, they were not aware
of the spills, hazardous material releases, or other environmental concerns.
The Utah Division of Water Rights, Water Rights Point Diversion Plot
(Figure B-1) created November 7, 1996 lists 58 points of diversion within a
one-mile radius of the property. The majority of the points of diversion are
for irrigation, stock watering, and municipal use. The Points of Diversion
printout is included in Appendix B.
5.0 SITE RECONNAISSANCE
Mr. Christopher D. Volksen of Delta Geotechnical Consultants, Inc.
conducted a site reconnaissance on October 28, 1996. At the time of our visit,
the site was vacant of any structure. Vegetation at the site was sparse, mainly
consisting of young desert grasses and bushes. Some small
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stockpile of material dot the site. As described earlier, these piles are
covered with soil, therefore we were unable to determine what is in the center
of the piles.
5.1 Hazardous Substances at the Site
No observable hazardous substances or signs of past use of hazardous
substances at the site were noted.
5.2 Polychlorinated Biphenyis (PCBs)
Delta Geotechnical inspected the property for the presence of electrical and
hydraulic equipment that may contain polychlorinated biphenyls (PCBs). PCBs
were widely used in the manufacturing industry until the mid 1970s, when they
were banned from use. There was no evidence of PCB containing material noticed
during our site visit.
6.0 INTERVIEWS
6.1 Owners and Occupants Interviewed
Since the property was vacant, there were no occupants, therefore we only i
nterviewed neighbors.
Mrs. Betty Dahl, resident at 301 South 1200 East #39, stated that she has
lived at this address for about 4 years. During that time she has been either
President of, or a board member of, the homeowners association. She indicated
that, to the best of her knowledge, there have been no environmental incidents
concerning the site or surrounding area.
Mrs. Gladys Allen, resident at 301 South 1200 East # 42, stated that she
has lived at this address for about 4 years. She indicated that, to the best
of her knowledge, there has been no environmental incidents concerning the site
or surrounding area.
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6.2 Government Officials Interviewed
Delta Geotechnical contacted Mr. Wayne Huston, Fire Chief for the City of
St. George regarding any fire department involvement with the property. The
fire department was not aware of any past environmental issues concerning the
site or adjacent property.
Delta also contacted Lieutenant Robert Flowers, Commander of Section 11 for
the Utah Highway Patrol, about any traffic incidents along the 1-15 freeway that
might impact the site. According to his memory, there have been no incidents
along the section of I-15 that borders the property that might impact the site.
7.0 SUMMARY OF ENVIRONMENTAL FINDINGS AND CONCLUSIONS
Based on a review of available records, site visits, personal interviews,
and other site related work, Delta Geotechnical concludes that:
The subject property currently consists of vacant land.
There are no registered UST's located on the property.
The Federal and State records indicate that two active LUST sites are
located between one-quarter and one-half mile from the subject site.
This assessment has revealed no evidence of environmental concern in
connection with the site other than those listed above.
8.0 RECOMMENDATIONS
Based on the above information, our assessment has revealed no evidence of
environmental concern in connection with the site. We do not recommend any
additional sampling or testing for this site.
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Project Number S1248
9.0 CLOSURE
This Phase I Environmental Site Assessment was performed in conformance with
the scope and limitations of ASTM Practice E-1527-94 for the subject site. Any
exceptions to, or deletions from, this practice are described in the Scope of
Services Section (2.0) of this report. This assessment has revealed no evidence
of environmental concern in connection with the site.
GEOTECHNICAL RECOMMENDATIONS
10.0 PROPOSED CONSTRUCTION
At the time of our study, the details of the proposed development had not
been determined. It is our understanding that the development could consist of
one to two-story residential buildings with paved parking lots and drives.
The buildings will most likely be masonry block or wood frame with slab-on-grade
construction similar to other buildings in the area.
11.0 SUBSURFACE CONDITIONS
In order to study subsurface conditions, 6 test pits were excavated across
the site. The subsoils correlated fairly well between the test pits which
generally consisted of an initial 6 to 12 inches of topsoil, underlain by 3 to
7 feet of loose silty sand and/or loose to medium dense clayey sand. In some
of the test pits, the sand was underlain by moist low plastic clay and/or hard
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calcareous material. Details of the soils encountered in the test pits are
presented on Figures A-3 through A-8. Figure A-9 is the key to symbols and
abbreviations used on the Test Pit Logs.
Swell-consolidation test results indicated that the native soils are
slightly moisture sensitive. Samples of the sands collapsed between 0.2 and 3.0
percent while a sample of the clay expanded 0.2 percent due to saturation under
a constant load of 1.0 ksf. The sample of clay indicated a swell pressure
around 1,400 to 1,600 psf.
As described earlier, ground water was not observed in any of the test pits
during our investigation. However, due to the presence of calcareous material,
it appears that historically, ground water has been located within 5 to 6 feet o
f the ground surface.
12.0 FOUNDATION RECOMMENDATIONS
The site is suitable for the proposed development. Considering the
subsurface conditions, we believe that spread footing founded on structural
fill would be the most suitable and economical foundation system for supporting
a building on this site. Stripping of the topsoil from the building and
pavement areas will be required. The topsoil should be suitable for use in
landscaped area. Undercutting of the footings will need to be extended to a
depth of 1 to 2 feet below the bottom of the footings. This depth will depend
on the structural loads involved. The onsite materials, with the exception of
the topsoil, should be able to be used as structural fill. The bearing capacity
of the native materials when used as structural fill should be on the order of
1,800 to 2,800 psf.
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Because of the hard nature of the calcareous material underlying the site,
basement and utility trench excavations may be difficult. Jack hammers or a
dozer with ripper type equipment may be required.
13.0 LIMITATIONS
The purpose of an environmental assessment is to reasonably evaluate the
potential for, or actual impact of past or present practices on a given
property. In performing an environmental assessment, it is understood that a
reasonable balance between environmental issues must be achieved as an
exhaustive analysis of each conceivable issue of potential concern is not
economically feasible. No environmental site assessment can wholly eliminate
uncertainty regarding the potential for recognized environmental conditions in
connection with a property. The environmental assessment is intended to reduce,
but not eliminate, uncertainty regarding the potential for recognized
environmental conditions in connection with the property and is limited by the
scope of services described herein and by the limitations of ASTM Practice
E-1527-94. The environmental assessment contains professional opinions about
environmental issues at the property and presents site conditions at the time of
the assessment. Site conditions may change with time. In rendering its
professional opinion, Delta Geotechnical's services provided herein were
performed, within the limited described, in accordance with current, generally
accepted environmental consulting principles and practices.
Delta Geotechnical has assessed the subject site visually, by reviewing
available historical records, and by conducting interviews with available
persons. No subsurface investigation was undertaken. Delta Geotechnical made
reasonable efforts to identify the presence of regulated
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hazardous substances at the site, but does not guarantee that such substances
are not present in locations not accessible or visibly detectable to auditors.
If a higher level of confidence is required, additional investigation is
suggested.
In conducting this assessment, Delta Geotechnical used information provided
by site owners and operators. Such information was assumed to be correct and
was used as supplied without verification. No warranty is expressed or
implied.
The geotechnical analysis and recommendations found in our report should be
considered preliminary. Once the details and locations of the proposed
structures are known, a final geotechnical study should be conducted.
Very Truly Yours,
DELTA GEOTECHNICAL CONSULTANTS, INC.
/S/ Christopher D. Volksen
CHRISTOPHER D. VOLKSEN
Project Engineer
/S/ Gary K. Olson
GARY K. OLSON, P.E.
Senior Geotechnical Engineer
CDV/GKO:c
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14.0 SOURCES OF INFORMATION
Christenson, G.E. and Deen, R.D., (1983), Engineering Geology of the St. George
Area Washington County, Utah, Utah Geological and Mineral Survey a Division of
Utah Department of Natural Resources and Energy, Special Studies 59, April
Flowers, Robert, (1996), Commander of Section 11 for the Utah Highway Patrol.
Personal communication.
Huston, Wayne, (1996), Fire Chief for the City of St. George, Personal
communication.
Regulatory Environmental Databases - National Priorities List (NPL);
Comprehensive Response, Compensation, and Liability Information System
(CERCLIS); Resource Conservation and Recovery Act (RCRA);.Leaking Underground
Storage Tanks (LUSTs); Solid Waste Landfills (SWLF); registered Underground
Storage Tanks (USTs); and Emergency Response Notification System (ERNS) spill
sites.
Thomas, Wayne, (1996), District Engineer of the Utah Department of Environmental
Quality, Personal communication.
US Bureau of Land Management, Aerial Photographs
USGS Topographic Quadrangle of St. George, Utah, 1954
Utah Division of Water Rights Database, Point of Water Diversion