DSHW-2024-005369

Land Use Inventory for
Future Expansion Planning
Summary Report
Chevron Products Company
Salt Lake Refinery
And Chevron EMC
Salt Lake City, Utah
December 2008
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---------EarthFax EarthFax Engineering, Inc.
Engineers/ Scientists
www.earthfax.com
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
TABLE OF CONTENTS
Land Use Inventory
For Future Expansion Planning
Summary Report
1.0 INTRODUCTION ......................................................................................................... 1-1
2.0 REGUATORY HISTORY .............................................................................................. 2-1
2.1 1984 Compliance Order on Consent ..................................................................... 2-1
2.2 1991 Corrective Action Order ................................................................................ 2-2
2.3 1997 Post Closure Permit ...................................................................................... 2-3
3.0 CURRENT LAND USE ALLOCATION ......................................................................... 3-1
3.1 Refinery Operating Areas ...................................................................................... 3-1
3.2 Open Areas ........................................................................................................... 3-2
3.3 Chevron Park ......................................................................................................... 3-2
3.4 Chevron Pipe Line and Chevron Marketing ........................................................... 3-3
3.5 Jurisdictional and Other Wetlands ......................................................................... 3-3
3.5.1 Existing U. S. Army Corps of Engineers Mitigation Sites ....................... 3-4
3.5.2 Pending COE 404 Permits .................................................................... 3-5
3.6 Solid Waste Management Units ........................................................................... 3-6
3.6.1 Landfill Waste Management Area ......................................................... 3-8
3.6.2 Fire Training Area ................................................................................. 3-8
3.6.3 Lime Settling Basin and Lime Settling Basin Dewatering lmpoundment 3-9
3.6.4 Ponds 2 and 3 ...................................................................................... 3-9
3.6.5 Landfarm .............................................................................................. 3-9
3.6.6 Spent Caustic Evaporation Site ............................................................ 3-9
3.6.7 Shale Oil Semi-Works Reservoir Sludge Pond and Spent Shale Pile .. 3-10
3.7 Hazardous Waste Units ...................................................................................... 3-10
3.7.1 Reservoir Waste Management Area CAMU ......................................... 3-11
3.7.2 Hazardous Waste Landfill and TEL Weathering Area .......................... 3-11
3.8 Northwest Oil Drain Canal ................................................................................... 3-12
4.0 GROUNDWATER AND GROUNDWATER REMEDIATION ......................................... 4-1
4.1 The Groundwater Waste Management Area ......................................................... 4-1
4.2 Existing Groundwater Recovery Systems .............................................................. 4-4
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December 8, 2008
Land Use Inventory
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Summary Report
4.3 Proposed Groundwater Recovery Systems .......................................................... 4-4
5.0 POTENTIAL EXPANSION ONTO REGULATED WASTE
MANAGEMENT AREAS ............................................................................................. 5-1
5.1 Hazardous Waste Units ........................................................................................ 5-1
5.1.1 Reservoir Waste Management Area ..................................................... 5-1
5.1.2 TEL Weathering Area ............................................................................ 5-2
5.2 Non-Hazardous Waste Units ............................................................................ 5-2
5.2.1 Landfill Waste Management Areas ........................................................ 5-2
5.2.2 Landfarm .............................................................................................. 5-3
5.2.3 Ponds 2 and 3 ...................................................................................... 5-3
6.0 LAND USE ALLOCATION, DISTRIBUTION AND LIMITATIONS ................................ 6-1
6.1 Current Land Use Allocation ............................................................................. 6-1
6.2 Chevron Park ................................................................................................... 6-1
6.3 Wetlands .......................................................................................................... 6-2
6.3.1 Marketing Terminal Wetlands ................................................................ 6-3
6.3.2 Administration Wetlands ....................................................................... 6-3
6.3.3 Bonneville Canal ................................................................................... 6-3
6.3.4 TEL Weathering Area ............................................................................ 6-3
6.3.5 Other Wetlands ..................................................................................... 6-4
6.4 Land with Current Environmental Restrictions .................................................. 6-4
6.4.1 Landfarm ............................................................................................... 6-4
6.4.2 Shale Oil Semi-Works Reservoir Sludge and Spent Shale
Pile Closure Area .................................................................................. 6-5
6.4.3 RWMA and LWMA Landfills .................................................................. 6-6
6.4.4 Fire Training Area ................................................................................. 6-6
6.4.5 Lime Settling Basing and Dewatering lmpoundment ............................. 6-7
6.4.6 Land Overlying Groundwater Recovery Systems .................................. 6-7
6.5 Groundwater ..................................................................................................... 6-8
7.0 LAND USE RANKING AND RECOMMENDATIONS .................................................... 7-1
7.1 Land Use Ranking ............................................................................................ 7-1
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Salt Lake Refinery and
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Land Use Inventory
For Future Expansion Planning
Summary Report
Salt Lake City, Utah
December 8, 2008
Table of Contents (Continued)
7.1.1 Highest Potential for Expansion Suitability ............................................. 7-1
7.1.2 Alternative Sites with Good Potential for Expansion ............................... 7-2
7.1.3 Alternatives Less Favorable for Expansion ........................................... 7-3
7 .1.4 Land Areas Not Suitable for Expansion ................................................. 7-5
8.0 REFERENCES CITED ................................................................................................. 8-1
Table 3-1
Table 3-2
Table 6-1
Table 7-1
Figure 3-1
Figure 3-2
Figure 3-3
Figure 3-4
Figure 6-1
Figure 7-1
Appendix A
Appendix B
TABLES
Total Allocation by Land Use Type
Inventory of Wetlands
Land With Current Environmental Restrictions
Inventory and Ranking
FIGURES
Most Recent Legal Boundary Survey (Plate in back sleeve)
Environmental Land Use Allocation from Post Closure Permit Showing
Wetlands and Key Reference Points (Plate in back sleeve)
Identified Wetlands on Refinery Property East of the Northwest Oil Drain Canal
Identified Wetlands on Refinery Property West of the Northwest Oil Drain Canal
Land Use Allocation Map (Plate in back sleeve)
Expansion Suitability Map
APPENDIX
Wetland Delineation Maps
Original SWMU Map from RFI
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Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
CHEVRONPRODUCTSCOPANY
SALT LAKE REFINERY
LAND USE INVENTORY
FOR FUTURE EXPANSION
CHAPTER ONE
Land Use Inventory
For Future Expansion Planning
Summary Report
This report is intended to detail the current land use at the Chevron Salt Lake Refinery
("Refinery) with emphasis on areas currently unoccupied, or with temporary structures.
Additionally, areas within the Refinery that are designated as either hazardous waste units or
Solid Waste Management Units ("SWMU's") under the current Refinery Post Closure Permit
("Permit") are examined to evaluate conditions required to re-use or re-classify them so that the
ground can be utilized for facility expansion. There are also open spaces within the Refinery
occupied by wetlands that are regulated by the United States Army Corps of Engineers ("COE").
These jurisdictional wetlands occupy ground that may be suitable for facility expansion. Thus,
this report evaluates the status of COE regulated wetlands and the steps necessary to create
Mitigation Sites where the wetlands within the facility can be reclaimed for expansion, with
development of new wetlands elsewhere on Refinery property.
Regardless of the eventual land use for a given area, there will always be certain
constraints that, aside from availability of the land may preclude it from any expansion or in
most cases limit the type of expansion. These too will be explored in this report with definitions
on what land use is suitable. Finally, there is ground at the Refinery occupied by environmental
projects that currently limit the land use. This matter will also be discussed with details on the
nature of the current land use restrictions and avenues that may be pursued to remove the
restrictions making the ground available for expansion.
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December 8, 2008
Land Use Inventory
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This report is divided into seven Chapters beginning with this Introduction as Chapter 1.
A brief regulatory history is provided as Chapter 2 with a detailed description of current land use
provided in Chapter 3. Chapter 4 address potential impacts to and by groundwater and
currently operating and planned environmental groundwater recovery systems. Chapter 5
discusses expansion opportunities onto regulated land with Chapter 6 presenting land use
allocation, land use and limitations. Chapter 7 ranks each land use type and presents
conclusions. Finally, Chapter 8 lists the references cited in the report. Each chapter references
tables, figures or appendices. Three of the figures are large 24" x 36" drawings that are located
in clear envelopes.
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Salt Lake Refinery and
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December 8, 2008
CHAPTER TWO
REGULATORY HISTORY
2.1 1984 COMPLIANCE ORDER ON CONSENT
Land Use Inventory
For Future Expansion Planning
Summary Report
In May 1984, the Refinery entered into its first regulatory commitment with the State of
Utah through issuance of Compliance Order on Consent No. 8403083 ("1984 Order"). This
document was issued by what was at the time the Utah Solid and Hazardous Waste Committee,
which is now known as the Utah Solid and Hazardous Waste Control Board ("Board").
Essentially, this early document stipulated:
• That the Refinery conduct an investigation and prepare closure plans for several
areas and units deemed of critical importance from an environmental viewpoint at
the time,
• Conduct an investigation of groundwater and groundwater contamination at the
facility,
• Provide a characterization of all hazardous waste sites at the refinery, and
• Prepare a report identifying and characterizing each potential waste site at the
facility with a detailed description of the operating history and waste inventory at
each site.
Work to comply with the 1984 Order took place over throughout 1984 and early 1985
with completion of two documents that are key elements of the current land use and distribution
at the Refinery. These are the Groundwater Quality Assessment Report (Dames & Moore,
1985a) and the Waste Site Characterization Report (Dames & Moore, 1985b).
Between issuance of the 1984 Order and the 1991 Corrective Action Order that will be
discussed in the next section, the EPA conducted a RCRA Facility Assessment ("RFA") of the
Refinery for the purpose of classifying units and areas at the Refinery that were proposed to be
classified as either hazardous or solid waste units. This work involved extensive field
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Land Use Inventory
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investigations, archive research and interviews with both Refinery management and other
personnel familiar with the refinery's operating history. The EPA submitted the final RFA Report
(USEPA, 1989) to the Refinery and the Utah Solid and Hazardous Waste Committee. That
document became the first instrument of negotiation for development of the environmental
compliance program at the Refinery.
2.2 1991 CORRECTIVE ACTION ORDER
This document became the primary instrument for development of the environmental
compliance strategy that remains in place today. Both the Utah Solid and Hazardous Waste
Committee and the Refinery negotiated the final terms of this document based on the results
presented in the Groundwater Characterization Report, the Waste Site Characterization Report
and the RFA. It was these negotiations that resulted in signing of the Corrective Action Order
("CAO") on April 5, 1991. The CAO superseded the 1984 Order.
The CAO identified thirty three (33) SWMU's, six (6) hazardous waste units plus the
Landfarm and Landfarm Storage Area as units requiring action under RCRA. The CAO also
stated that the Refinery would conduct a RCRA Facility Investigation ("RFI"), prepare formal
closure plans for the six hazardous waste units and the Landfarm and Landfarm Storage Area
plus implement semi-annual groundwater monitoring. Corrective Action Plans were also to be
developed.
Throughout the next several years, the Refinery complied with the CAO and completed
several additional investigations and reports that were submitted to the State. Full compliance
with the conditions of the CAO, including corrective action at several SWMU's and hazardous
waste sites with construction of a RCRA Corrective Action Management Unit ("CAMU") known
as the Reservoir Waste Management Area (RWMA") led to a request from the refinery to enter
into Post Closure Status with the State of Utah.
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2.3 1997 POST CLOSURE PERMIT
Land Use Inventory
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Summary Report
On September 2, 1997 the Board issued and the Refinery Manager signed the Post
Closure Permit ("Permit") for the RWMA. This document identified all compliance activities that
had been completed allowing classification of the Refinery as being in Post Closure status. The
Permit also defined the future environmental compliance requirements for unresolved SWMU's
that were deferred from immediate action by their operational status and further defined the long
term groundwater monitoring and management program for the refinery. The Permit is
regulated by the Utah Division of Solid and Hazardous Waste ("Division") on behalf of the
Board.
In accordance with language in the Permit, it is opened for review and modification every
five years. The first revision, with several modifications was issued in September 2003 and the
most recent renewal, completed without corrections or modifications was in August 2007. The
Permit is currently the primary environmental regulatory document in effect at the Refinery as it
superseded the CAO.
It is only through the approval and modification procedures outlined in the Permit that
expansion of refinery operating areas into currently identified waste management units or areas
that are either in compliance or have action deferred as noted above is allowed. Such
opportunities come by automatically every five years when the Board opens the permit for
review and modification. However, it is possible to request changes or modifications at any time
between standard review periods. Such action does require more effort and is still subject to
public comment.
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CHAPTER THREE
CURRENT LAND USE ALLOCATION
The Refinery is situated in both Salt Lake and Davis Counties. As noted on the certified
survey of the Chevron property provided as Figure 3-1, the land area breakdown is as follows:
Davis County: There are 477.24 acres of property owned by Chevron U.S.A., Inc. within Davis
County, Utah consisting of 473.41 contiguous acres currently occupied by the Refinery, plus two
small parcels that are not contiguous. The first is a 0.94 acre parcel located north of Interstate
215 that, while it is owned by Chevron U.S.A., Inc. is not occupied or used by the Refinery.
Similarly, a small parcel located west of Redwood Road containing 2.89 acres is owned by
Chevron U.S.A., Inc. but is not occupied or used in any capacity by the Refinery. Thus, the total
contiguous land area occupied and used by the Refinery in Davis County is 473.41 acres.
Salt Lake County: The balance of the property operated by the Refinery is an 87 .12 acre parcel
that is contiguous to the 473.41 acre parcel in Davis County. These two parcels that together
total 560.53 acres comprise the legally described, contiguous perimeter boundary of the
Refinery.
Discussed below is a detailed narrative on the land use allocation for the 560.53 acres.
Note that because these individual areas have not been formally surveyed, the acreage
provided is approximate, which may result in a slight discrepancy compared to the certified
560.53 acres. The entire Refinery is shown on Figure 3-2. Acreages are summarized on Table
3-1.
3.1 Refinery Operating Areas
There are approximately 153 acres occupied by what is known as the Operating Area of
the Refinery. The operating area consists of process units, such as the Crude Unit, Fluid
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Catalytic Cracker, etc., conveyance lines such as the main pipeways and the tank fields. Also
included are the administration building and all satellite buildings such as control rooms and
maintenance building within the plant. Roadways in these areas are also included.
Due to legislation and other regulatory controls put in place following the serious incident
at the Texas City BP facility in March 2005 there are new restrictions being enforced at chemical
and petroleum refineries that limit exposure of non-essential personnel to industrial related risks.
As part of the compliance with these new rules the Refinery has calculated the radius from each
process unit that defines the blast zone within which no personnel can work unless they are
operations personnel assigned to the respective unit. At present this restriction applies only to
temporary facilities for human habitation such as construction or office trailers. Because there
are several process units at the Refinery, an outside perimeter zone was developed using the
coalesced circles around each area. This Blast Zone is identified on Figure 3-2 by the large 124
acre lobed feature.
3.2 Open Areas
Currently, there are approximately 145 acres of land that are not actively used by the
Refinery. This land is comprised of open areas that have not yet been developed, land areas
that are currently not used due to the lack of need or excess distances from the process area
that are too great under the current production layout.
Many of these areas are ideal for future expansion. Detailed discussion is provided in
Chapter 6.
3.3 Chevron Park
Chevron Park, located in the northeastern-most corner of the Chevron parcel (Figure 3-
2) occupies approximately 11 acres. The park is a recreation area for Chevron personnel and
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includes a swimming pool, locker rooms and miscellaneous outdoor recreation features such as
tennis courts, picnic grounds and a softball field.
3.4 Chevron Pipe Line and Chevron Marketing
Approximately 10 acres are occupied by the Chevron Pipe Line Company Salt Lake
Pump Station. Chevron Pipe Line ("CPL") actually owns this property, although it is included as
part of the same parcel in the legal description as being owned by Chevron U.S.A, Inc.
Similarly, 10.6 acres are owned and operated by the Chevron Marketing Terminal. This
property is also included in the total contiguous acreage in the legal description on Figure 3-1.
3.5 Jurisdictional and Other Wetlands
There are approximately 200 acres of wetlands within the contiguous refinery property.
The U.S. Army Corps of Engineers ("COE") maintains control over wetlands regardless of
whether they are on private or public property. Wetlands are defined based on the presence of
hydric soils and supporting vegetation, proximity to groundwater and the grade of the ground
surface. There are several isolated areas on the property that meet this definition. However, it
is the area west of the NWODC and east of Redwood Road that contain the highest percentage
of wetlands. Wetlands distribution by acreage is summarized on Table 3-2.
There are three types of wetlands at the refinery:
Jurisdictional Wetlands: These are wetlands that have been mapped and formally
classified as wetlands by the COE.
Subject or Suspected Wetlands: Ground that clearly displays characteristics of wetlands
using the classification criteria above is considered a wetland even though it has not
been formally mapped, classified and inventoried as such by the COE. The COE
requires that wetland surveys be conducted to formalize the status before the ground
can be used for other purposes.
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Mitigation Sites: When ground occupied by a wetland is authorized by the COE for use
that changes or removes the wetland classification, the COE requires that the owner of
the land file a 404 Permit. Through the permitting process, the COE may or may not
approve re-classification and use of the land. If re-use is approved the COE requires
that wetlands of equivalent or oftentimes greater acreage be developed elsewhere. If
possible such development should take place on the same property. If this is not
possible the COE can designate an area off property where the substituted wetland
acreage is to be developed. Regardless of where the new wetlands are developed, the
resulting wetland is called a "Mitigation Site" meaning it is developed and maintained as
a wetland as a trade-off for the original wetland being converted for re-use.
3.5.1 Existing U. S. Corps of Engineers Mitigation Sites
There are currently two formal Mitigation Sites on Chevron property that are permitted by
the COE. These were developed for the purposes defined above and included:
Marketing Terminal Mitigation Site: Between 1990 and 1992 Chevron Products
Company expanded the Salt Lake Marketing Terminal. The expansion included the
addition of a new distribution loading facility and nine new storage tanks. The area used
for the expansion was in part occupied by approximately two (2) acres of Jurisdictional
Wetlands. In order to gain approval for the expansion a 404 Permit was submitted to the
COE. The expansion was approved and the existing natural wetland was abandoned,
dried out and became the site of the new tank farm. As part of the agreement, the COE
stipulated that Chevron develop a four (4) acre mitigation site directly to the south of the
new tank farm on ground that at the time was not a wetland.
To accommodate the 2:1 ratio mitigation site, Chevron drilled a deep artesian well to
supply water to the site, graded it and imported "starter" vegetation to help establish the
wetland. The Permit required Chevron to aggressively work to develop these 4 acres
into a thriving wetland. At present, this Mitigation Site is a well established wetland. The
site is shown on Figure 3-2 and 3-3.
West Field Shore Bird Habitat: As part of Board approved corrective action at the
Bonneville Canal and former wastewater treatment system Pond SWMU's, Chevron
created a large Mitigation Site in the field west of the NWODC. This area, shown on
Figure 3-2 and 3-4 is bounded on the west by the monitor well access road, on the north
by the south embankment of the abandoned Bonneville Canal and the east by the
NWODC. Like the Marketing Terminal area this too required a supplemental water
supply. In this case, the supply was designed to utilize discharge from the Bonneville
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Canal SWMU area and the natural Bonneville Spring located on the eastern side of the
Chevron parcel.
This site is still maintained as a wetland under the 404 Permit and is being developed as
a shore bird habitat. Shore birds are non-waterfowl birds that live adjacent to wetlands
on the shores and sandy areas around the wetlands. While they are an upland avian
species, they are an integral part of the supporting wetland habitat. The West Field
Shore Bird Habitat mitigation area was designed and implemented under the COE
approved "Habitat Mitigation and Monitoring Plan for the Pond Remediation Project."
(EarthFax, 2002).
3.5.2 Pending COE 404 Permits
Associated with the planned facility expansion and related land use management, the
Refinery has submitted two 404 Permit Applications under the Nationwide 39 authorization for
Commercial and Institutional Development. These permits are for the following land areas:
Salt Lake Marketing Terminal Wetlands: This is the same Mitigation Site referenced
above. Implementation of new rules regarding emergency evacuation procedures is
requiring that large tanker trucks carrying product or crude oil that have entered the
Refinery property must be allowed to turn around and exit the property during an
emergency rather than remain on-site, which is currently the only option due to physical
space limitations that do not allow a tanker to turn around. The current plan is to utilize
the mitigation site south of the Marketing Terminal as a paved area of sufficient size to
allow several double-tankers to safely turn-around and re-enter Chevron Avenue to
leave the facility during an emergency. Temporary parking is also provided in the event
of temporary overcrowding and congestion at the Marketing Terminal or crude unloading
area. This area will be clearly marked and managed by security to prevent overnight
parking.
As defined in the 404 Permit Application (Bio-West, 2008a) there are 3. 73 acres of
wetland in the mitigation site that will be re-claimed by this project. Pursuant to COE
guidance, a replacement ratio of 10: 1 is required for this parcel. This means that the
Refinery must create a new mitigation site in the west field of 37.3 acres to replace the
Marketing Terminal site. Note that the west field will be used as a general mitigation
site for substitution of all wetlands being occupied within the operating areas of the
refinery.
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Bonneville Canal Site: Under the new expansion plan for the firewater protection
system, the Refinery is constructing a 10-inch (I.D.) HOPE firewater line along the east
side of the crude tank farm. This line will require four hydrants and an emergency
access road. Because of the need for two access points for fire fighting equipment, the
road must have ingress/egress points to the north and south. To satisfy these
conditions, the firewater line and road must cross the Bonneville Canal (Figure 3-2) and
the associated wetlands that surround the canal.
In order to accommodate this emergency equipment access, the Refinery submitted a
404 Permit Report under Nationwide Permit 39 for Commercial and Institutional
Developments to occupy the referenced wetlands. The Permit stipulates that the 0.75
acres of jurisdictional wetlands adjacent to the Bonneville Canal must be reclaimed at a
ratio of essentially 2: 1, or more specifically, the Refinery must develop 1.3 acres within
the new mitigation site west of the NWODC.
Pond 2 Site: Pond 2 of the former wastewater treatment system is the southern of two
large open ponds to the west of the operating area just east of the NWODC (Figure 3-2).
Pond 2 was transformed into a wetland habitat for waterfowl and shorebirds under the
above referenced Habitat Mitigation and Monitoring Plan. Pond 2 contains 5.25 acres of
jurisdictional wetlands, and is currently a mitigation site as defined in Section 3.5.2
above.
Upon submittal of the other 404 Permit applications detailed above to the COE the
Refinery directed that no 404 Permit be submitted for Pond 2 because there were no
plans for future expansion into it. However, a Corrective Action Plan was prepared for
Pond 2 under the Permit and there is adequate space in the west field mitigation area to
account for Pond 2 should that decision ever be made to occupy this area. However, a
formal 404 Permit must be submitted to the COE for expansion into Pond 2.
Administration Area Site; The Refinery has conducted the investigation and wetland
delineation (Bio-West, 2007) of the 10.6 acres of wetlands directly south of the main
Administration Building on Chevron Avenue (Figure 3-2). As with Pond 2, expansion of
this area will require submittal of a formal 404 Permit similar to those described above.
3.6 Solid Waste Management Units
There are several areas within the refinery east of the NWODC that are specifically
governed by the Permit. Many of these have already been remediated in a manner which
makes the ground they occupy acceptable for use without formal notification. These cases are
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No Further Action: In these cases, the respective solid and/or hazardous waste units
defined in the CAO were found to contain no solid or hazardous waste allowing re-use of
the land. Subsequent to the investigation which made that determination each unit was
identified as requiring No Further Action in Attachment 5 of the Permit. Examples are
the Northeast Landfill, the Standing Water Surface lmpoundment and the Experimental
Farm.
Reservoir Waste Management Area CAMU: As part of formally closing this RCRA listed
CAMU, which consisted of the API Separator Sludge Pit, Baffle Board Pond, Storm
Surge Pond, and the Reservoir, all wastes were excavated and stabilized in a RCRA
landfill within what was the western one-half of the Reservoir. This action left the ground
occupied by the eastern one-half of the Reservoir plus all of the Storm Surge Pond,
Baffle Board Pond and API Separator Sludge Pit as clean-closed ground making it
available for expansion.
Closure by Removal: Technically, this is a formal RCRA term that applies to hazardous
waste. However, generically it is used here to reference both hazardous waste sites and
SWMU's for which corrective action involved removal of all physical waste to the
groundwatera by either natural or engineered efforts. At the Refinery, the engineered
efforts involved either off-site transport and disposal at an EPA approved commercial
landfill or stabilization within a solid waste landfill at the Refinery. Examples of this are
the Baffle Board Pond Conveyance Ditch and the Alky Site. Natural efforts are where
comprehensive sampling and modeling demonstrated that the constituents of concern
listed in the RFI are no longer present at regulatory threshold levels that would require
further action. An example of such a site is the TEL Weathering Area.
No Further Action as Long as Unit is Operational: These are SWMU's that are classified
in the Permit as requiring Corrective Action. However, such action is deferred as long as
the unit operates within its original defined use. Once the Refinery takes one of these
units out of service or changes the operational land use from that defined in the Waste
Site Characterization Report they are required to perform Corrective Action as with any
other SWMU. Examples are the Fire Training Area and Lime Settling Basin.
The sections below discuss the SWMU's at the refinery which are still active in the
Permit under one or more of the above criteria.
a Groundwater was approved in the Permit as a facility-wide waste management area. This means that groundwater corrective
action under the entire 560.53 acres is to be universal rather than specific at each respective SWMU. At the Refinery, it was
demonstrated through contaminant transport and flow modeling that natural bio-degradation of contaminants in groundwater
prevented migration off of Chevron property. See Chapter 4.
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3.6.1 Landfill Waste Management Area
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The Landfill Waste Management Area ("LWMA") is a solid waste landfill constructed to
hazardous waste standards. This means that it is composed of cement stabilized waste
overlying an impermeable liner with a RCRA cap and cover. The LWMA is an armor covered
landfill that contains 239,000 cubic yards of stabilized solid waste imported from ten Permit
listed SWMU's. Specifically:
• Oily Dump
• Landfill Area
• Pond 1A, Portions of Pond 2, ponds 4 and 5
• De-watering Pond
• Alky Channel
• Alky Site and the No. 2 Outfall Channel
• Portions of the Fire Training Area Surface lmpoundment
• Baffle Board Pond Conveyance Ditch
• Abandoned Lime Settling Basing
• Sand Filter Backwash Pond
Ground once occupied by each of these SWMU's is available for expansion. An
inventory of the status of each SWMU is contained in Chapter 6.0. A location map of the
original SWMU's from the CAO is in Appendix B.
3.6.2 Fire Training Area
The Fire Training Area still contains impacted soil from the surface impoundment that
was not placed into the LWMA. However, at the time the Permit was issued and to this day the
Fire Training Area is considered an active unit. Therefore, corrective action is deferred until it is
removed from operational status. The area of the Fire Training Area not occupied by the former
impoundment is not part of the SMWU.
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3.6.3 Lime Settling Basin and Lime Settling Basin Dewatering lmpoundment
Both of these units are SWMU's listed in the Permit that are deferred from corrective
action as long as they are operational. Upon removal from operational status each will require
development of a corrective action plan with post-removal groundwater monitoring.
3.6.4 Ponds 2 and 3
Ponds 2 and 3 are SMWU's that have been remediated through partial removal (Pond 2)
and natural degradation of TPH to levels that require no further action as long as the ponds
exist. Both have been incorporated into the Habitat Mitigation and Monitoring Plan for wetlands
enhancement. Additionally, Pond 2 has a completed and Board approved Corrective Action
Plan on file with the Division.
3.6.5 Landfarm
The Landfarm is a SWMU identified in the CAO and Permit. As with the ponds, natural
degradation has reduced TPH to levels less than 5,000 mg/kg, thus there is no further action
required as long as the Landfarm remains in place.
3.6.6 Spent Caustic Evaporation Site
This SWMU was deferred because the EPA has not yet identified cleanup goals or best
remediation technology for caustic waste. In 1987 Chevron Research and Technology
Corporation submitted a report stating that the only potential risk was to groundwater.
Treatment of the groundwater issues will be discussed in Chapter 4. Much of this site has been
occupied by expansion because the soils were found to be free of listed analytes.
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3.6.7 Shale Oil Semi-Work Reservoir Sludge Pond and Spent Shale Pile
While not listed in the Permit as SWMU's or hazardous waste sites, these two areas are
important. Upon removal of the Shale Oil Semi-Works plant in 1983 the reservoir was clean-
closed with the sludge removed from the reservoir placed into the referenced closure site.
Similarly, the spent shale was removed from the Shale Oil site (Figure 3-2). These wastes are
stored in two unlined landfills in the north central portion of the parcel. The area containing the
two landfills is surrounded by a slurry wall. It was monitored for a release to groundwater for
several years and eventually released from further monitoring by the EPA. However, the waste
remains on-site in the referenced landfills. Additionally, a deed restriction for these areas is on
file with the Davis County Recorders Office.
3.7 Hazardous Waste Units
There were originally six hazardous waste sites listed in the CAO that were remediated and
identified as such in the Permit. They are:
• Hazardous Waste Landfill (Federal listed)
• TEL Weathering Area (Federal listed)
• API Separator Sludge Pit (Federal listed)
• Reservoir (State listed)
• Storm Surge Pond (State listed)
• Baffle Board Pond (State listed)
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3. 7.1 Reservoir Waste Management Area
Land Use Inventory
For Future Expansion Planning
Summary Report
As noted above the three State listed sites and the API Separator Sludge Pit were
incorporated into the RWMA CAMU and closed within a formal RCRA landfill designated in the
Permit as the RWMA. In fact, the RWMA became the basis for preparing the Permit.
3.7.2 Hazardous Waste Landfill and TEL Weathering Area
The Hazardous Waste Landfill and TEL Weathering Area were closed by removal. The
difference being that the entire Hazardous Waste Landfill was physically removed and
transported off-site. In the course of removing this material there were no hazardous materials
discovered. The TEL Weathering Area was demonstrated through analytical testing and risk-
based assessment to be free of the listed wastes identified in the CAO. Thus, the TEL
Weathering Area was also closed by removal through natural degradation and attenuation of the
wastes at that site.
At the time the Permit was issued, all six hazardous waste sites had been closed under
the respective RCRA guidance. There are no additional hazardous waste sites remaining at the
refinery.
Through the course of completing the referenced closures, several acres of land were
made available for re-use by the refinery. The site of the Storm Surge Pond, Baffle Board
Pond, API Separator Sludge Pit and the eastern one-half of the Reservoir were clean closed to
the degree that the land was made available for facility expansion. The hydrogen plant and new
wastewater treatment plant occupy these areas. The ground occupied by the former TEL
Weathering Area remains open.
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3.8 Northwest Oil Drain Canal
Land Use Inventory
For Future Expansion Planning
Summary Report
The NWODC is the canal that runs north-south through the Refinery property (Figure 3-
2). The canal was constructed in 1928 to convey storm water and wastewater from industrial
facilities to the south of the Refinery to the Great Salt Lake. Although better water quality
standards are now in place, the canal still conveys wastewater discharge from UPDES
approved industries to the south and from the Refinery to the Lake. In addition, it handles
excess storm water and discharge from the Salt Lake City wastewater treatment plant located
just south of 2300 North Street south of the Refinery.
The NWODC is owned by Salt Lake City Corporation who maintains a right-of-way within
50-feet either side of the centerline of the canal. Because of the need to access the canal for
maintenance Salt Lake City does not allow construction of any permanent structures within that
right-of-way.
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CHAPTER FOUR
Land Use Inventory
For Future Expansion Planning
Summary Report
GROUNDWATER AND GROUNDWATER REMEDIATION
Groundwater at the Refinery is differentiated based on two distinct aquifers. While there
are other much deeper aquifers (>300 feet below surface) it is the shallow unconfined aquifer,
typically the upper 25 feet and the uppermost deep confined aquifer, typically between 25 and
100 feet below the surface that influence, or are influenced by the presence of the Refinery.
The presence of these two non-potable water aquifers of the Jordan River Valley is documented
by the Utah Department of Natural Resources (Hely, et. al., 1971).
At the Refinery, the presence of a geologic feature known as the Salt Lake Salient and
the effects it had on deposition of sediments associated with ancient Lake Bonneville creates an
even more unique situation. The Refinery sits directly west of the salient and the resulting
deposition of sediments creates a lens of clay that thickens to the west and acts as a confining
bed. More importantly, the referenced deeper aquifer in this area is under artesian pressures
resulting in a natural zone adjacent to the salient that due to the upward pressure essentially
eliminates the pathway for potential contaminants in the groundwater to migrate below the
shallow, unconfined aquifer. Details of this feature, the associated hydraulic controls and their
influence on groundwater flow and contaminant migration are outside the scope of this land use
inventory report. However, because they are important aspects of the groundwater monitoring
and remediation systems currently in place at the Refinery, reference is made to the Steady
State Groundwater Flow Model and Contaminant Flow Model for the Chevron Salt Lake
Refinery (EarthFax, 1996) for detailed descriptions of the processes involved.
4.1 THE GROUNDWATER WASTE MANAGEMENT AREA
Typically, when dealing with either solid or hazardous waste management under RCRA,
clean-up or remediation includes addressing not only the solid waste but treatment of
groundwater beneath the respective waste unit. During the RFI it became apparent that such
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an approach would result in numerous small groundwater recovery or treatment systems each
operating independently. Such action leaves groundwater between remediated units untreated.
Reviewing the available groundwater quality data from monitor wells and the subsurface
geology the Refinery developed a new approach to groundwater in the RFI and in the Permit
that followed. It was recommended to the Board that groundwater in the shallow aquifer at the
Refinery be considered a uniform plane across which contaminants that may exist in or be
inadvertently released to the groundwater would be contained within that aquifer due to the
artesian pressure from the lower aquifer. Based on that hydro-geologic setting it was proposed
that the list of SWMU's detailed in the CAO and carried over to the Permit be modified to include
groundwater as a separate waste management area subject to facility-wide treatment rather
than unit-specific treatment. The Board agreed and the Permit was issued defining the
Groundwater Waste Management Area ("GWMA").
Subsequent to approval of the GWMA in the Permit, the Refinery demonstrated through
contaminant transport modeling that there could not be off-site migration of any contaminants
due to the demonstrated aggressive biological degradation that takes place in the native soils.
The flow and contaminant transport model was run under a 100-year scenario. Throughout that
period of the time, a modeled release of 1 mg/I of benzene from the now closed Oily Dump
SWMU (Appendix B) began to degrade directly upon its release and never migrated as far as
the western property line at Redwood Road. It is important to note that this modeling was run
assuming the source of the benzene at the Oily Dump remained as a source over the 100
years. In fact, the Oily Dump was remediated in 1997 and incorporated into the LWMA. When
the model was re-run with this source gone, the 1 mg/I of benzene not only degraded but the
zero line actually began to recede back toward the source area. This modeling effort was
presented to the Board with a request to remediate any future solid or hazardous waste
management issues only to the groundwater surface leaving any impact to groundwater subject
to the referenced degradation. Such action was approved by the Board.
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Understanding the status of the GWMA is worthy of the lengthy discussion because its
classification removes the need to remediate groundwater that may contain contaminants below
every parcel of ground that may eventually be occupied by the Refinery for facility expansion.
This is because groundwater is a dynamic resource and migration of potential waste
constituents moves with the groundwater.
The exception to the lack of facility or unit specific groundwater recovery and or
treatment is when one of the following conditions is met.
• If detected concentrations of Permit listed analytes in groundwater pose a direct
exposure risk to workers, jurisdictional wetlands or other protected habitat directly at the
site of the potential exposure, or hydraulically downgradient, the groundwater must be
remediated to avoid that exposure.
• If detected concentrations of Permit listed analytes in groundwater pose a potential
impact to upgradient groundwater monitor wells at closed RCRA units, such as the
RWMA, corrective action must be taken to prevent such migration.
With regard to the second item, RCRA requires that all closed RCRA landfills have an
upgradient monitor well that reflects upgradient baseline water quality at the time of closure and
at least three downgradient wells adjacent to the closure cell. Water quality in the upgradient
well is compared to water quality in the three downgradient wells. If elevated levels of
contaminants enter the groundwater in the vicinity of the upgradient well, the comparison with
downgradient monitor well quality must account for the new source of contamination. This type
of interpretation that must account for attenuation factors and assessment of potential impacts
to downgradient wells must be made to determine if potential elevated detections in the
downgradient wells are due to the new upgradient source or a potential release from the RCRA
closure cell. To avoid this complex matter, and in accordance with Chevron Research and
Technology Corporation protocols at the time, all potential sources of groundwater
contamination at the Refinery that exceed Permit listed concentrations and are hydraulically
upgradient of a RCRA closure cell require implementation of groundwater treatment. Examples
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would be the current voluntary measures at the Northwest Tank Farm, which is hydraulically
upgradient of the RWMA and the closed Shale Oil Semi-Work Wastewater Treatment Reservoir.
4.2 EXISTING GROUNDWATER RECOVERY SYSTEMS
In accordance with stipulations in the CAO and the Permit the Refinery currently
maintains three operating groundwater recovery and treatment systems. They are:
North Tank Farm Groundwater Intercept System: This final remedy system was designed
and installed to intercept groundwater from the North Tank Farm SWMU identified in the
CAO. This dedicated system intercepts groundwater using north-south and east-west
gravel filled trenches that recover groundwater and pump it to the Refinery wastewater
system for treatment. As shown on Figure 3-2 this system is mostly contained with the
North Tank Farm and the old, remediated Bonneville Canal.
Bonneville Canal Recovery System: While this system is designed to intercept spring water
from the Bonneville Spring, it also intercepts a fair amount of groundwater. Water is
collected into a dedicated pipeline and pumped to a vault near the north-east corner of Pond
3. There water is pumped into Pond 3 where it flows to Pond 2 and then through an
underground piped system into the jurisdictional wetlands south of the refinery operating
area. This system was installed to remediate sediments in Ponds 2 and 3 and also to allow
water from the Bonneville Spring to by-pass the facility wastewater treatment system. This
system is outlined on Figure 3-2.
Chevron Pipe Line: At the time of preparation of this report, CPL still operated an air
stripper remediation system at their facility. Water collected is piped off-site to a POTW for
treatment. This system will be shut down on December 31 as cleanup goals have been
satisfied.
4.3 PROPOSED GROUNDWATER RECOVERY SYSTEMS
There are two areas for which groundwater recovery and treatment are planned. These
are the Rocky Mountain Pipeline ("RMPS") groundwater recovery system and the Southwest
Groundwater Recovery System near the southwest corner of the RWMA. Specifically:
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Rocky Mountain Pipeline Groundwater Intercept System: In early 2009 Rocky Mountain
Pipeline ("RMPS") will be installing a groundwater intercept system at their facility that is on
land leased from the Refinery. This system will recover groundwater at the RMPS
compound and pump it to the Refinery wastewater treatment system through an industrial
sewer manhole (Figure 3-2).
Southwest Groundwater Recovery System: This system is required to collect and treat
benzene in groundwater near the southwest corner of the RWMA (Figure 3-2). It has been
demonstrated that the RWMA is not the source of the benzene release; rather it is
associated with much older releases upgradient to the northeast that have long since been
repaired and treated.
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CHAPTER FIVE
Land Use Inventory
For Future Expansion Planning
Summary Report
POTENTIAL EXPANSION ONTO REGULATED
WASTE MANAGEMENT AREAS
Current EPA regulations allow use of land occupied by certain solid and even hazardous
waste management units under certain circumstances. In many cases, the complexity of the
application process precludes such expansion. However, with that potential available for
Refinery consideration, the following sections explain the status of those units and what land
use opportunities and restrictions may apply.
5.1 HAZARDOUS WASTE UNITS
As noted in Chapter 3, there were originally six hazardous waste units defined in the
CAO. The following section discusses potential use of these areas.
5.1.1 Reservoir Waste Management Area
The RWMA is only hazardous waste unit at the Refinery that is an issue because the
other units were either incorporated into the RWMA or closed by removal. Use of the RWMA
for any expansion would be limited due to the following general conditions:
Stabilized Hazardous Waste: The 140,790 cubic yards of hazardous waste placed within
the RWMA was stabilized by solidification/encapsulation using either cement kiln dust or
lime kiln dust as the cementing agent. Thus, the waste is essentially a monolithic mass
with considerable compressive strength and integrity.
Elevated and Sloped Landfill Cap: The RWMA surface is a sloped (5%) landfill cap at
an elevation several feet above the rest of the operating area of the Refinery. The cap is
vegetated by design. Underlying the vegetation is a complex RCRA cap and synthetic
liner that under RCRA rules cannot be compromised.
Current Permit Language Restricts Use: Current language in Permit Modules 1, 2 and 3
suggest that the RMWA landfill will be an isolated structure free of encroachment with a
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fence and signage stating the no access is allowed. Any potential use of the RWMA
surface would likely require a modification to the Permit changing this status.
Because of the nature of the RWMA design and the requirement to maintain the integrity
of the landfill and the stabilized waste contained within, no foundations of any kind would be
allowed to penetrate the cap on the RWMA surface. This would reduce the only realistic land
use to using the surface for storage. However, the material stored would not be allowed to
interfere in any way with the RCRA cap, vegetated surface or surface drainage controls.
5.1.2 TEL Weathering Area
The TEL Weathering Area ("TEL") occupies the ground directly north of the RWMA,
south of the LWMA and directly east of the NWODC. It is bordered to the east by the closed
Shale Oil Semi-Works Reservoir Site. Current activities are expanding onto the old Shale Oil
Semi-Works Reservoir Site and is presently encroaching onto the eastern side of the closed
TEL.
5.2 NON-HAZARDOUS WASTE UNITS
5.2.1 Landfill Waste Management Area
The LWMA is the only Permit regulated solid waste landfill at the refinery. It is a gravel
armored, elevated landfill that was constructed using essentially the same guidelines and
methods that apply to hazardous waste landfills, similar to the RWMA. The LWMA has an
impermeable synthetic liner, the waste contained inside is stabilized with Portland cement™ and
as with the RWMA is a monolithic mass. There is a RCRA cap constructed over the waste
which must be maintained.
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5.2.2 Landfarm
Land Use Inventory
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The CAO defined the Landfarm as a SWMU (Figure 3-2). However, unlike other
SWMU's it was stipulated that a Closure Plan be developed for remediation of the Landfarm
similar to the plans required for hazardous waste sites. A closure plan was prepared for the
Landfarm (Geraghty & Miller, 1991 ), although it was never fully implemented.
The CAO also identified the Landfarm Storage Area ("LFSA") as a SWMU (Figure 3-2).
The LFSA was the small area directly south of and contiguous to the Landfarm upon which
wastes were stored until they could be spread on the Landfarm. Under a modification to the
Landfarm Closure Plan, the LFSA was excavated and the waste was placed onto the Landfarm
in 1996. Attachment 5 of the Permit references this activity as Final Remedy for the LFSA.
The Landfarm remains as a SWMU but is under No Further Action Status. In 2003 the
Refinery submitted the Closure Report for the Landfarm and Landfarm Storage Area. That
report referenced that the LFSA waste had been incorporated into the Landfarm in 1996 and
that the TPH concentrations at the Landfarm were below the Utah DERR Tier 1 Screening
Levels of 5,000 mg/kg. The Board accepted the Closure Report with the stipulation that it was
approved for No Further Action, but non Final Remedy. This means that no further monitoring
or reporting of the status of the Landfarm is required but that, due to residual TPH
concentrations the ground occupied by the Landfarm could not be used for any other purpose
until it was demonstrated through risk screening that the TPH poses no risk or that the waste is
removed off-site. Because at the time of submittal of the Closure Report the Refinery had no
plans for this ground no requests were made at the time.
5.2.3 Ponds 2 and 3
Pond 2 & 3 will require corrective action if the Refinery decides to eliminate the ponds.
They contain TPH contaminated sediment that, while it is less than 5,000 mg/kg allowing No
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Further Action, still requires removal or other treatment before the land can be occupied for
other uses. A Corrective Action Plan approved by the Division is in place for Pond 2. Similar
actions will be required should the Refinery elect to occupy Pond 3.
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CHAPTER SIX
Land Use Inventory
For Future Expansion Planning
Summary Report
LAND USE ALLOCATION, DISTRIBUTION
AND LIMITATIONS
6.1 CURRENT LAND USE ALLOCATION
As referenced on Figure 3-1 and discussed in Chapter 3, the official certified survey
documents that Chevron U.S.A., Inc. owns 560.53 contiguous acres that make up the current
Refinery. For the purpose of this inventory the land is distributed into the following categories:
Operating Areas, Buildings and Roads 153 acres
Land with Current Environmental Restrictions 43 acres
Land operated by other Chevron business units 20 acres
Land occupied by established or suspected wetlands 200 acres
Open land potentially available for expansion 145 acres
Total Acreage 561 acres
This land use distribution using different map symbols is shown on Figure 6-1 of this
report.
Detailed discussions regarding each of the above land use types is provided throughout
the earlier chapters of this report. The balance of this chapter discusses the opportunities that
may be explored for incorporating Chevron Park, wetlands, open areas and areas with current
environmental restrictions into future facility expansion plans.
6.2 CHEVRON PARK
This parcel could be transferred from its current use to one more directly related to
refinery operations. As noted in Section 3.1 there have been recent legislative actions and
other regulatory controls placed on areas identified as being within the defined blast zone for
certain process units. At the Refinery, families traveling to the park were once some distance
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from the process areas. However, with ongoing planned expansion this may soon not be the
case. Although recent developments associated with the STARR Project post-date the
photographic base used on Figure 6-1, there is presently a substantial amount of industrial
activity along the north road that must be traveled to reach Chevron Park. Additionally, two new
tanks have been constructed along 600 North and 300 West that are roughly shown on Figure
6-1. Thus, even today, the roadway to the Chevron Park is not only closer to industrial units it is
substantially more congested.
Chevron Park currently occupies approximately 11 acres. Proximity of the park to the
railroad and Interstate 215 preclude high risk process units. However, the ground could be
used for non-process facilities such as offices, warehouses training facilities, etc. Also, as will
be discussed in Chapter 7, Chevron Park is adjacent to a much larger area of open ground that
best fits the overall facility expansion plan. If such expansion takes place it would not only put
the park directly adjacent to industrial activity but could itself be used for such activity that is
allowed within the current proximity to the private and public property.
6.3 WETLANDS
As discussed in some detail in Chapter 3 there are approximately 200 acres of land
within the contiguous Refinery property that currently are COE regulated wetlands or those that
are either suspected to be wetlands or are planned for use as Mitigation Sites.
For this report, all of the west field, identified as everything west of the NWODC and
south of the North access roadway all the way to Redwood Road and the south property line is
designated as wetlands (Figure 6-1 ). This is because the west field not only contains the 38
acre shorebird habitat mitigation site discussed in Chapter 3, but also land that has been set
aside in 404 Permits currently in review by the COE as mitigation sites for wetlands within the
operating area that have already been selected for expansion.
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6.3.1 Marketing Terminal Wetlands.
Land Use Inventory
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Summary Report
This area south of the current Marketing Terminal tank farm occupies approximately 10
acres. Of that, 3. 73 have been formally mapped as jurisdictional wetlands. For expansion
needs into this area Chevron submitted a 404 Permit Application in July 2008. In that
application 37.3 acres in the west field have been identified as the mitigation site area.
6.3.2 Administration Wetlands
The land directly south of the current visitor and employee parking areas has been
formally mapped and found to contain 10.6 acres of jurisdictional wetlands. Although no 404
Permit for this parcel has yet been submitted it is being considered for expansion. In this case,
the COE will likely require the same 10: 1 ratio. This means that 106 acres in the west field must
be allocated as a mitigation site.
6.3.3 Bonneville Canal
The firewater system expansion is requiring that the 0. 75 acres around the Bonneville
Canal on the east side of the property be made accessible for the firewater line and emergency
access roadway. The 404 Permit for this area was also submitted to the COE in July 2008.
The anticipated ratio for this small parcel is slightly less than 2: 1 at 1.3 acres in the west field.
6.3.4 TEL Weathering Area
As referenced in earlier chapters, the TEL was closed by removal so there are no
current environmental land use restrictions. The only potential conflict is that through direction
of drainage to the lower portions of the TEL it very likely now meets the definition of a wetland.
Thus, mapping of this area and submittal of a 404 Permit to the COE may be required to use the
entire TEL.
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6.3.5 Other Wetlands
Land Use Inventory
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Summary Report
There are several other small wetland areas within the operating area of the Refinery
that at some point may be exchanged with ground in the west field to create mitigation sites.
Ponds 2 and 3, the small area around the TEL and unmapped wetlands along the north property
line makeup these wetlands. With the likelihood of COE stipulated high ratio mitigation sites,
the Refinery must assume that the majority of the west field area may eventually be taken up as
a single large wetland mitigation site.
The above restrictions coupled with the NWODC running between the west field and the
operating area plus the drainage issues and amount of fill that would be required to utilize this
ground the entire west field is ranked quite low as the best area for facility expansion.
6.4 LAND WITH CURRENT ENVIRONMENTAL RESTRICTIONS
As detailed in other chapters there are several land areas occupied by existing SWMU's
that have been deferred from corrective action because they are operating units, SWMU's that
are approved for No Further Action but not classified as Final Remedy due to the presence of
residual hydrocarbons, plus the RWMA and LWMA. The following discussion addresses these
units from a practicality viewpoint of removing them from active status in the Permit to Final
Remedy. These areas are tabulated by acreage on Table 6-1.
6.4.1 Landfarm
The Landfarm occupies a highly strategic location for facility expansion due to its
location directly north of existing tank farms. It is in a logical location for expansion of tank
storage as the facility expands. In fact, the new gasoline tank is situated west of the Landfarm.
Placement of the Landfarm on the list for possible corrective action to free up the ground for use
should be placed very high on the list of land use opportunities.
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The current status of the Landfarm will require either a risk-based evaluation to
demonstrate that the waste no longer poses an environmental risk or the remaining
hydrocarbon containing sediment down to groundwater can be removed from the Refinery. The
Board has required that the Landfarm be closed under an approved closure plan. As
referenced earlier, the current closure plan would need modification if removal of sediment is
selected. Because the soils that currently make up the Landfarm to approximately four feet
below the surface are not highly suitable as foundation material it is recommended that the
Landfarm be closed by removal. This classification would free the entire 4 acres for expansion.
Currently, the Landfarm lies between other optimum land available for expansion so removing it
would open up a 17 acre parcel for expansion.
6.4.2 Shale Oil Semi-Work Reservoir Sludge and Spent Shale Pile Closure Area
This area is highly visible on Figure 6-1 as a large rectangular area within which is
contained a smaller rectangular landfill and an even smaller square landfill. The large outer
area occupies 11 acres and defines the perimeter of a slurry wall constructed to control potential
discharge to groundwater from the two landfills.
The entire Shale Oil Semi-Works Area is under No Further Action status, meaning there
are no more agency monitoring or reporting requirements. However, before the land can be
used the waste contained within the two landfills must be removed. The slurry wall can remain
in-place. Upon removal of the waste the deed restriction could be removed.
Because this area is contiguous with what this report suggests as the most favorable
area for expansion it is suggested that an evaluation be made to establish costs to excavate
and remove the waste to Clean Harbors or other suitable for use facility. Because the landfills
are essentially elevated above the ground surface only limited backfill would be required.
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6.4.3 RWMA and LWMA Landfills
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Summary Report
These two landfills are among the least favorable areas for expansion because of the
permitting that would be required to use them. In both cases, a complex modification to the
Permit would be required. Additionally, because the RWMA is a formal RCRA hazardous waste
CAMU, the potential of gaining approval to use it in any capacity remains unlikely.
Because the LWMA is a solid waste landfill rather than hazardous, the potential for
gaining approval to use the surface area for equipment lay down or parking is more favorable,
but would require a formal Permit modification.
As with the Shale Oil landfills both the RWMA and LWMA boundaries were surveyed
upon completion of construction and the certified title survey was submitted to the Davis County
Recorders office wherein each survey was attached as a deed restriction to the Chevron U.S.A.
land survey that is provided as Figure 3-1 of this report. Those surveys will remain as land use
restrictions under RCRA on the property title essentially forever, or unless the two landfills are
excavated and removed from the property. Because these are solidified, monolithic structures
the costs associated with such removal are highly prohibitive and most likely preclude any
benefit gained through the reclaimed land use. Thus, use of the RWMA and LWMA remains
very low to unacceptable on the prioritization of land available for facility expansion.
6.4.4 Fire Training Area
The Fire Training Area Surface Water lmpoundment in a location on the property that is
favorable for expansion. However, the current orientation of the blast zone land use restriction
boundary limits activities that can take place at this site. If the Refinery foresees a land use in
this area other than as a fire training ground, the removal of the residual wastes from the old
surface water impoundment would be a fairly insignificant effort from both a construction and
cost viewpoint. As with other SWMU's it would be best to excavate and remove the waste
6-6
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
Land Use Inventory
For Future Expansion Planning
Summary Report
beneath the old impoundment rather than seek a risk-based approval. This is logical not only
for potential facility expansion but also because the Permit states that whenever the Refinery
redefines the land use at this site to anything other than that defined in the Waste Site
Characterization Report the corrective action must be performed. If this site is eventually
remediated so the land can be used for another purpose groundwater monitoring will be
required under the Permit.
6.4.5 Lime Settling Basin and Dewatering lmpoundment
As with the Fire Training Area Surface lmpoundment, both the Lime Settling Basin and
Dewatering lmpoundment were deferred in the Permit from further action as long as they are
operable units. Once these units are removed from service as defined in the Waste Site
Characterization Report they must be characterized and corrective action plans submitted to the
Division for approval. This ground surface provides a valuable location for expansion of process
equipment, tanks or other Refinery land use that is allowed within the blast zone.
6.4.6 Land Overlying Groundwater Recovery Systems
As long as the systems detailed in Chapter 4 are operating, the ground over which they
are constructed will not be available for facility expansion. This is because access to the piping,
vaults, pumps, ejectors, tanks and other conveyance mechanisms must be available for
maintenance. Potential impact of these systems to facility expansion is most notable on the
north end of the North Tank Farm Groundwater Intercept System in the open field and the east
end of the Bonneville Canal Recovery System just west of the open water Bonneville Canal
(Figure 3-2). Additionally, because the RMPS system originates on their lease property and
the piping to the Refinery Sewer will be buried in an existing roadway to the Refinery sewer
there should be no direct impact to Refinery activities due to this system as long as the RMPS
lease remains in effect.
6-7
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
Land Use Inventory
For Future Expansion Planning
Summary Report
The proposed Southwest Groundwater Recovery System is directly adjacent to the
RWMA, Pond 3 and the NWODC. These prominent features themselves restrict land use at this
area. The only system feature that may be impacted is the conveyance line for recovered water
although that is located along the roadway south of the RWMA to the industrial sewer manhole
just east of the existing wastewater treatment plant. However, there are other utilities in this
roadway that would present similar problems if it were selected for expansion.
Overall, the operating and proposed groundwater recovery systems do not pose a
significant impact to planned facility expansion. Although, for long term planning purposes, it
should be noted that with the exception of the CPL system, which will be shut down in
December 2008 and the RMPS system, which is only estimated to operate for one or two years,
the remaining groundwater intercept systems will be operating for the next five to ten years.
6.5 GROUNDWATER
As referenced in Chapter 4, the GWMA applies to all groundwater beneath the entire
contiguous parcel at the Refinery. This means that no efforts to treat or remediate groundwater
are required for facility expansion unless a new plume were to be identified that poses a risk to
downgradient, closed or otherwise remediated environmental units such as those discussed in
Section 4.2 of this report.
Construction of foundations, roadways, or any other type of work associated
maintenance or facility expansion that does not require excavation to or below the groundwater
surface can proceed without any regulatory driven treatment or other special handling. The only
exception to this is when for whatever purpose it becomes necessary to pump groundwater to
the surface. In such cases, the groundwater must be sampled and usually placed into drums or
other containers until analytical results on samples collected from the source are available. If
the recovered groundwater exceeds the acceptable concentration for any Permit listed analyte it
6-8
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
must be placed into the wastewater treatment system.
Land Use Inventory
For Future Expansion Planning
Summary Report
Under no circumstances can
groundwater ever be pumped directly to the ground surface without first following these
procedures.
To discharge contaminated groundwater to the ground surface would violate the
conditions of the Permit and could result not only in fines, but characterization and possible
corrective action of the ground to which it was discharged. This same general rules applies to
contaminated soil that may be excavated. Contaminated soil that exceeds Permit listed or Tier I
DERR Risk-Based concentrations (Utah DERR, 1997) can under no circumstances be placed
back into the excavation. This includes soils that are removed from below the groundwater
surface even if groundwater itself was not pumped to the surface.
6-9
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
CHAPTER SEVEN
Land Use Inventory
For Future Expansion Planning
Summary Report
LAND USE RANKING AND RECOMMENDATIONS
This last section of the report provides a summary of the details discussed throughout
the document. An attempt has been made to rank each land area with respect to its suitability
for use throughout upcoming facility expansion. It is understood that there may be internal
Chevron policies or decisions that are contrary to the recommendations provide herein,
although they have not been incorporated into this report. The areas and accompanying
acreage are summarized on Table 7-1 and shown on Figure 7-1.
7.1 LAND USE RANKING
The following discussion ranks each land area discussed in the report with a brief
summary as to the justification.
7.1.1 Highest Potential for Expansion Suitability
North Areas. The 63 acres north of the north access road, often referred to as the Pool
Road along with the 17 acres south of that same road between Chevron Pipe Line and 300
West Street. This area is identified as Zone A on Figure 7-1
Positive Aspects
Based on the current status and favorable conditions of the ground, relatively few
environmental restrictions and the logical proximity for expansion of the existing Refinery
operating area, it makes up the most ideal ground at the Refinery for expansion.
Additionally, if the exposure liabilities referenced in Section 3 prove to be too restrictive
the approximately 11 acres currently occupied by Chevron Park are contiguous to this
same parcel. Of note is the expansion of existing tank farms. The new gasoline and
diesel tanks under construction occupy part of this area.
7-1
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
Land Use Inventory
For Future Expansion Planning
Summary Report
Upon completion of Phase VI of the firewater system upgrade, this entire parcel will
essentially be protected by the new system with the appropriate loops, hydrants and
valves. This system would require only minimal effort to complete.
This ground is well outside the current blast zone shown on Figure 3-2 so structures for
human habitation could be built in this area, such as an administration building, storage,
parking, etc.
Negative Aspects
The presence of the Landfarm and the Shale Oil Semi-Works landfills impact this area.
Current environmental policy would require that the waste in these units be excavated
and disposed off-site. The Landfarm could possibly be demonstrated to satisfy risk-
based screening criteria under Utah's RBCA rules that would not require disposal. This
is not the case with the Shale Oil site, all waste must be removed offsite. This is in part
due to the raised and sloped surface elevation of each landfill.
There are two known natural gas lines in this area that service the Refinery. These and
the potential presence of other utilities that may require re-location pose additional cost
risk.
Recommendations
Detailed cost estimates should be prepared for excavation and off-site disposal of the
Shale Oil Work landfills and the Landfarm. Costs for a RBCA assessment of the
Landfarm should also be developed.
A title company should be retained to perform a complete utility title search of this parcel
to identify any on-file right-of-ways, land use restrictions or other legal property use
matters. This should include details on the Shale Oil Works deed restriction.
If abandonment of Chevron Park is considered feasible similar cost estimates should be
developed to assess demolition and reclamation of this ground. This may be a favorable
location for an administration building.
7.1.2 Alternative Sites with Good Potential for Expansion
The open area to the west of 300 West Street and east of the LWMA and the NWODC,
between 400 North and the Pool Road is the next most favorable parcel for industrial expansion.
This area is identified as Zone Bon Figure 7-1
7-2
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
Favorable Aspects
Land Use Inventory
For Future Expansion Planning
Summary Report
This parcel, which is currently being used for temporary trailers, equipment and storage
for the Coker, Crude Unit and STARR projects is ideal for industrial expansion.
It is outside of the current blast zone so it could be used for any purpose.
It is contiguous with the Northwest Tank Farm, which is directly to the east across 300
West Street.
Negative Aspects
The LWMA landfill intrudes into the parcel creating a somewhat irregular boundary.
The western-most portion of the TEL Weathering Area adjacent to the NWODC may
classify as a small wetland of less than 0.51 acres which may need to be mitigated.
If this were to be used for process areas that necessitate a blast zone radius it would
change the shape of the current blast zone shown on Figure 3-2. This in turn could
impact the current land use status of all property that has been intentionally placed
outside of the Blast Zone.
Recommendations
The Refinery should pursue use of this land for permanent facility expansion features if
the planned use for existing project trailers and storage is indeed temporary. This ground
offers a logical expansion for tank farms and even process units if needed.
Because of the small size of the possible TEL Weathering Area wetland, this area may
even classify as "sacrificial" meaning that the COE would group it in with other Mitigation
Sites already in 404 Permits for much larger wetlands, such as the Marketing Terminal
wetland, which is at a 10: 1 ratio.
7.1.3 Alternatives Less Favorable for Expansion
South_Areas and Ponds 2 and 3. These south parcels offer the potential for expansion
but carry with them the additional burden of dealing with COE to create suitable mitigation sites.
They are in a favorable location for certain types of expansion. There are approximately 38
acres south of the current operating area at the Refinery. This is ground located south of the
Marketing Terminal, south of the current Administration Building and southwest of the current
7-3
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
Land Use Inventory
For Future Expansion Planning
Summary Report
employee and contractor parking lots. The 5.25 acres of Pond 2 is also within this classification.
This is identified as Zone Con Figure 7-1.
Positive Aspects
The ground is bounded by other Refinery owned property so there would be no adjacent
property ownership issues.
It is outside of the current blast zone so there would be no restrictions were it to be used
for offices, storage, parking, etc.
Negative Aspects
Virtually the entire parcel is currently jurisdictional wetland. The Marketing Terminal
area is currently under a 404 Permit application and should be approved in early 2009.
The other areas have been mapped but no 404 Permit has been submitted. The COE
would likely require six-months before approval, assuming they do approve it.
The land south of the Administration Building all the way west to the NWODC is defined
in the Chevron Refinery and Marketing Terminal Integrated Contingency Plan as a
pathway for product released during a Worst Case Discharge. Thus, to utilize this land
even if the COE approved the 404 Permit alternatives a plan must to be developed to
handle this potential worst case discharge of nearly 18,000 barrels from Tank 36 at the
Marketing Terminal.
Creation of suitable mitigation in the west field from this wetland plus those already in
review would utilize essentially the entire west field as a Mitigation Site. It is conceivable
that the COE may require ratios that exceed the capacity of the west field. This would
require pursuit of other COE approved ground upon which to construct the balance of
the Mitigation Site.
The parcel south of the Marketing Terminal is already planned for an emergency tanker
turn-around and relocated security measures. This planning would have to be
incorporated into whatever else may occupy this space.
As with any land that may be planned for expansion, construction of process units that
require development of a blast zone radius may restrict land use within nearby parcels
that would not qualify for that exclusion. This in turn could change nearby land use
rules.
7-4
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
Recommendations
Land Use Inventory
For Future Expansion Planning
Summary Report
If this south area is selected for expansion the Refinery should prepare 404 Permits on
the remaining portions of the ground that are wetlands as soon as possible.
The liabilities associated with a new blast zone definition should be compared to
prioritize the type of industrial activities that may be developed.
7.1.4 Land Areas Not Suitable for Expansion
The RWMA and LWMA RCRA Landfills are not deemed favorable for expansion. With
no alternatives the LWMA could be used for very limited activities. However, since the shape
and integrity of the LWMA must remain unchanged it too ranks very low for expansion potential.
These two landfills are identified as Zone Don Figure 7-1
Negative Aspects
There are no positive aspects associated with land use expansion at the site of these
two landfills that are not outweighed by the regulatory, logistical and financial burdens
associated with gaining a change in regulatory status. The only logical means of re-
using the ground occupied by the landfills is to remove the waste from the landfills to an
approved off-site facility. Costs for such an effort would be difficult to justify even
compared to dealing with COE matters. These two landfills together cost over $20
million to construct. Due to the cement-like, monolithic structure of the waste stabilized
within each landfill the cost to remove and reclaim the ground would likely equal that
amount.
7-5
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
CHAPTER EIGHT
REFERENCES CITED
Land Use Inventory
For Future Expansion Planning
Summary Report
1971. Hely, et. al. Water Resources of Salt Lake County, Utah. Utah Department of Natural
Resources. Technical Bulleting No. 31. Salt Lake City, Utah.
1984. Utah Solid and Hazardous Waste Committee. Compliance Order on Consent No.
88403083. Between Chevron U.S.A., Inc. and the State of Utah. Salt Lake City, Utah
1985a. Dames and Moore. Ground Water Quality Assessment Report for the Chevron Salt Lake
Refinery.
1985b. Dames and Moore. Waste Site Characterization Report for the Chevron Salt Lake
Refinery. Dames & Moore, Salt Lake City, Utah.
1989 U. S. Environmental Protection Agency. Final RCRA Facility Assessment Report for the
Chevron Salt Lake Refinery. Lakewood, Colorado
1991. Geraghty & Miller, Inc. Closure Plan for the Landfarm and Landfarm Storage Area at the
Chevron U.S.A. Inc. Salt Lake Refinery. Salt Lake City, Utah.
1991. Utah Solid and Hazardous Waste Committee. Corrective Action Order No. 91010011
Between Chevron U.S.A, Inc. and the State of Utah. Salt Lake City, Utah.
1994. EarthFax Engineering, Inc. RCRA Facility Investigation Report for the Chevron Salt Lake
Refinery. Midvale, Utah
1996. EarthFax Engineering, Inc. Steady State Groundwater Flow Model and Contaminant
transport Model for the Chevron Salt Lake Refinery. Midvale, Utah.
1997. Utah DERR. Guidelines for Utah's Tier 1 Risk-based Corrective Action: Utah's Guide for
Screening Petroleum Contaminated Sites. Salt Lake City, Utah.
8-1
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
TABLE 3-1
CHEVRON SALT LAKE REFINERY
Land Use Plan
Total Allocation By Land Use Type
I I Surveyed Area
Land Use Tlpe (Acres)
Operating Area, Buildings and Roads
Environmental Restrictions
Other Owners (CPL & Marketing)
Wetlands
Open Areas
!Total Acreage II 560.53
See Figure 6-1 for distribution
I
Land Use Inventory
For Future Expansion Planning
Summary Report
Estimated Area
(Acres)
153
43
20
200
145
561 I
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
TABLE 3-2
CHEVRON SALT LAKE REFINERY
Land Use Plan
Inventory of Wetlands
I I
Surveyed Area Estimated Area
Identified Wetland (Acres) (Acres)
Bonneville Canal 0.75
Marketinq Terminal 3.73
Administration Buildinq Area 10.6
Pond 2 12.65
Playa Area 17
North Area 0.8
TEL Weathering Area 0.51
West Field 116
West Mitigation 38
!Total Acreage II 28 I 172 I
Land Use Inventory
For Future Expansion Planning
Summary Report
Total
(Acres)
0.75
3.73
10.6
12.65
17
0.8
0.51
116
38
200 I
Chevron Products Company
Salt Lake Refinery and
Chevron EMC
Salt Lake City, Utah
December 8, 2008
TABLE 6-1
CHEVRON SALT LAKE REFINERY
Land Use Plan
Land With Current Environmental Restrictions
I I Surveyed Area Estimated Area
Identified Wetland (Acres) (Acres)
RWMA 9.6
LWMA 16.5
Landfarm 4
Shale Oil Area 11
Bonneville Canal 1.9
!Total Acreage II 0 I 43 I
Land Use Inventory
For Future Expansion Planning
Summary Report
Total
(Acres)
9.6
16.5
4
11
1.9
43 I
Chevron Products Company
S lat Lake Refinery and
Chevron EMC
Sa lt Lake C ity , Utah
December 8 , 2008
TABLE 7-1
CHEVRON SALT LAKE REFINERY
Land Use Plan
Inventory and Rank ing
I II
Block
Land Parcel Designation
North of Pool Road A
South of Pool Road A
Chevron Park A
West of 300 West B
East Side C
Marketing C
South of Admin. Building C
West of NWODC D
RWMA and LWMA D
!Total Acreage I
See Figure 7-1 for land parce l locations
Land Use Inventory
For Future Expans ion Plann ing
Summary Report
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Surveyor 1s Certificate
I, Nathan B. Heber, certiflj that I am a Professional Land SurveljOr as
prescribed under the laws of the state of Utah and that I hold license no.
5152162. I further certiflj that a land survelj was made of the propertlj
described below, and the findings of that survelj ore as shown hereon.
The basis of bearing is North 89°53'48" East between the found
Southwest corner and the found South Quarter corner of Section II,
Township I North, Range I West, Salt Lake Base and Meridian as shown.
Davis County Chevron Boundary Description
Parcel I
Beginning at a point on the Salt Lake Countlj/Davis Countlj line said point
being North 00°04'56" Hest 635.81 feet along the Section line and
~orth 89°54'21" East 51.52 feet along the Salt Lake Countlj!Dovis Countlj
line from the Center of Section 14, Township I North, Range I West, Salt
Lake Base and Meridian,
Thence South 89°54'21" West 4939.84 feet along the Salt Lake
County/Davis County line to the East right of way line of Redwood Road;
Thence North 03°48'42" East 2911.95 feet along the East right of way
line of Redwood Road to a point of curvature;
Thence Northerly 811.48 feet along a 5619.58 foot radius curve to the
right with a central angle of 08°14'48" ( chord bears North 01°51'41"
East 816.18 feet/ along the East right of way line of Redwood Road to
the South right of way line and access road of 1-215;
Thence North 89°36'06" East 101.91 feet along the South right of way
line and access road of 1-215 to a point of curvature;
Thence Northeasterly 294.01 feet along a 611.96 foot radius curve to
the left with a central angle of 25'04'08" (chord bears North 16'41'15"
East 291.61 feet/ along the South right of way line of 1-215;
Thence North 82°05'11" East 188.80 feet along the South right of way
line of 1-215 to a point of curvature;
Thence Northerly 611.11 feet along a 1664.84 foot radius curve to the
right with a central angle of 21'03'01" /chord bears North 66°39'21"
East 608.21 feet) along the South right of WOlj line of 1-215;
Thence North 11°01'55" East 265.83 feet along the South right of way
line of 1-215;
Thence North 80°32'16" East 661.14 feet along the South right of WOlj
line of 1-215;
Thence North 83°51'23" East 134.14 feet along the South right of WOlj
line of 1-215;
_Thence North 89'31'51" East 1802.13 feet along the South right of way
line and access rood of 1-215 to the Quarter section line of Section II;
Thence South 00'01'21" Hest 24.58 feet along the said section line;
_Thence North 14°40'23" East 394.81 feet along the South right of way
line and access rood of 1-215 to the West right of walj line of D4RG
Railroad;
Thence South 03°11'36" Hest 2381.05 feet along the Hest right of WOlj
line of D4RG Railroad to the South line of Section II;
Thence North 89°51'13' Hest 18.15 feet along the said section line;
Thence South 03°11'00" West 2001.93 feet along the Hest right of way
line of D4RG Railroad to the point of beginning.
Contains 20,621,115 sq. ft. or 413.41 acres
Parcel 2
_Also including a parcel located in the Northeast Quarter of Section 15,
Township I North, Range I West, Salt Lake Bose and Meridian being more
particularly described as follows,
Beginning at a point North 00°04'22" West 635.32 feet along the
section line from the Center of Section 15, Township I North, Range
West, Solt Lake Bose and Meridian,
Thence North 00'04'22" Hest 292.50 feet along the Section line;
Thence North 54°03'55" East 406.09 feet to the West right of way line
of Redwood Rood;
Thence South 03°48'42" Hest 531.51 feet along the Hest right of way line
of Redwood Rood;
Thence South 89°54'21" Hest 293.10 feet to the point of beginning.
Contains 125,844 sq. ft. or 2.89 acres
Parcel 3
Also including a parcel located in the Southwest Quarter of Section II,
Township I North, Range I West, Salt Lake Bose and Meridian being more
particularly described as follows,
Beginning at a point on the North right of way line of 1-215 said point
being South 89°53'40" Hest 101.61 feet along the Section line from the
Center of Section II, Township I North, Range I Hest, Salt Lake Base and
Meridian,
Thence South 19°03'11" Hest 114.91 feet along the North right of walj line
of 1-215;
Thence South 89°21'22" West 1013.95 feet along the North right of walj
line of 1-215;
Thence North 00°01'53" Hest 42.44 feet to the Quarter section line of
Section II;
Thence North 89°53'40" East 1185.10 feet along the Quarter section line
to the point of beginning.
Contains 41,028 sq. ft. or 0.94 acres
Salt Lake County Chevron Boundary
Beginning at a point on the Salt Lake County/Davis County line said point
being North 00°04'56" Hest 635.81 feet along the Section line and
North 89°54'21" East 51.52 feet along the Salt Lake County/Davis Countlj
line from the Center of Section 14, Township I North, Range I West, Solt
Lake Base and Meridian,
Thence South 03'11'00" West 1931.94 feet along the West right of way line
of D4RG Railroad;
Thence South 88°40'55" West 36.16 feet;
Thence Northwesterly 288.00 feet along a 260.00 foot radius curve to
the left with a central angle of 63°21'58" /chord bears North 58°13'40"
West 213.50 feet/;
Thence North 89°51'39" West 63.90 feet;
Thence North 44 °51'39" Hest 56 .51 feet;
Thence North 89°51'39" Hest 66.00 feet;
Thence South 44°50'11" Hest 53.99 feet;
Thence North 08°30'55" East 25.08 feet;
Thence North 04°16'35 Hest 1124.99 feet to the Quarter section line of
Section 14;
Thence South 89°52'26" Hest 2042.18 feet along the said Section line to
the West Quarter corner of Section 14;
Thence South 89°51'01" West 2215.35 feet along the Quarter section line
of Section 15 to the East right of WOlj line of Redwood Road;
:hence North 03°48'42" East 631.0l feet olong the East right of way
line of Redwood Road to the Salt Lake County/Davis County line;
Thence North 89°54'21" East 4939.84 feet along the Salt Lake
County/Davis Countlj line to the point of beginning.
Contains 3,194,989 sq. ft. or 81.12 acres
Combined Overall Chevron Boundor\j Description
Beginning at a point on the Salt Lake County/Davis Countlj line
said point being North 00°04'56" Hest 635.81 feet along the
Section line and North 89'54'21" East 5152 feet along the Solt
Lake County/Davis County line from the Center of Section 14,
Township I North, Range I Hest, Solt Lal::.e Bose and Meridian,
Thence South 03°11'00" Hest 1931.94 feet along the Hest right
of way line of D4RG Railroad;
Thence South 88°40'55" West 36.16 feet;
Thence Northwesterly 288.00 feet along a 260.00 foot
radius curve to the left with a central angle of 63'21'58"
/ chord bears North 58°13'40" Hest 21350 feet/;
Thence North 89°51'39" West 63.90 feet;
Thence North 44°51'39" West 56.51 feet;
Thence North 89°51'39" West 66.00 feet;
Thence South 44°50'11" Hest 53.99 feet;
Thence North 08°30'55" East 25.08 feet;
Thence North 04'16'35 Hest 1124.99 feet to the Quarter
section line of Section 14;
Thence South 89°52'26" Hest 2042.18 feet along the said
Section line to the West Quarter corner of Section 14;
Thence South 89°51'01" West 2215.35 feet along the Quarter
section line of Section 15 to the East right of way line of
Redwood Rood;
Thence North 03°48'42" East 3555.02 feet along the East
right of walj line of Redwood Road to a point of curvature;
Thence Northerly 811.48 feet along a 5619.58 foot radius
curve to the right with a central angle of 08°14'48" /chord
bears North 01°51'41" East 816.18 feet/ along the East right
of way line of Redwood Rood to the South right of way line
and access road of 1-215;
Thence North 89°36'06" East 101.91 feet along the South
right of way line and access road of 1-215 to a point of
curvature;
Thence Northeasterly 294.0I feet along a 611.96 foot radius
curve to the left with a central angle of 25'04'08" / chord
bears North 16°41'15" East 291.61 feet) along the South right
of way line of 1-215;
Thence North 82°05'11" East 188.80 feet along the South
right of way line of 1-215 to a point of curvature;
Thence Northerly 611.11 feet along a 1664.84 foot radius
curve to the right with a central angle of 21°03'01" /chord
bears North 66°39'21" East 608.21 feet) along the South
right of way line of 1-215;
Thence North 11°01'55" East 265.83 feet along the South
right of way line of 1-215;
Thence North 80°32'16" East 661.14 feet along the South
right of way line of 1-215;
Thence North 83°51'23" East 134.14 feet along the South right
of way line of 1-215;
Thence North 89°31'51" East 1802.13 feet along the South
right of way line and access road of 1-215 to the Quarter
section line of Section II;
Thence South 00°01'21" Hest 24.58 feet along the said
section llne;
Thence North 14°40'23" East 394.81 feet along the South
right of way line and access rood of 1-215 to the Hest right
of way line of D4RG Railroad;
Thence South 03°11'36" Hest 2381.05 feet along the Hest
right of way line of D4RG Railroad to the South line of
Section II;
Thence North 89°51'13' Hest 18.15 feet along the sold
section line;
Thence South 03°11'00" Hest 2001.93 feet along the Hest
right of way line of D4RG Railroad to the point of beginning.
Contains 24,416,104 sq. ft. or 560.53 acres
0
Nathan B. Heber
License No. 5152162
Date
LEGEND
RAILROAD LINE
EDGE OF ASPI--IAL T
FENCE LINE
PROPERTT CORNER/ROH
FOUND MONUMENT
+ SECTION CORNER
LOCATED IN SECTIONS 10, II, 14 AND 15,
TOHNSf--llP I NORTf--l, RANGE I HEST,
SALT LAKE BASE 4 MERIDIAN
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COPTRIGI--IT
I
ALL REPORT$, DESIGNS, FIELD DATA, FIELD
NOTES, DRAWINGS, SPECIFICATIONS,
CALCULATIONS, ESTIMATES OR ANY
REPRESENTATION CONTAINED HEREON ARE
THE SOLE PROPERTY OF DIAMOND DESIGN AND
LAND SURVEYING UNLESS PREVIOUSLY
ESTABLISHED BY PRECEDENCE OR WRITTEN
AGREEMENT
DATE PLOTTED 0411!
JOB No. Jc:11110
51--iEET
# Of' #
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,-r-,. ,. .. --
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KEY TD SYMBOLS
D LAND AREAS WITH CURRENT SOLID WASTE LIMITATIONS <SEE TEXT FDR DETAILS)
D LAND AREAS THAT ARE WETLANDS (SEE TEXT FDR DETAILS)
•
C
' .. ' ,, , ..
' . '
\ BLAST ZONE
D
◊
E
REVISIONS
F
SCALE
G
;; Chevron lliiiiiill Environmental Management Company and the
Salt Lake Refinery
I' -200' DATE 11-22-08 APPROVED
DR. ___ CH. ____ DR. APP. __ _ ENGR. ___ _
□PR' G DEPT. ENG. DEPT.
H
LAND USE PLAN
, -
f( ~ ,t ,; tu'·~~,~\
F. · ·"Ol j'!1Ji i\1' , ..
u
ENVIRONMENTAL LAND USE ALLOCATION FROM POST
SHOWING WETLANDS AND KEY REFERENCE POINTS
C. C.
s. □.
FIGURE 3-2
I
1
2
3
L
5
6
00
0
' <D
C\J
' --
LO :. ca
C\J
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w
"' CLOSURE PERMIT ::J
LO -"-
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cj
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SEE APPENDIX A FDR DETAILED WETLAND MAPS
•• DESIGNATES CORPS OF ENGINEERS 404
APPLICATION IN PROGRESS FDR RELOCATION
DR GW
DR APP.
ENGR .
OPR'G . DEPT.
ENG'R. DEPT.
C
CH . GW ---------.. .......... ,., ,.,
■ ■
APPROVED ~'-1.4 ..._-__..
EarthFax
SCALE
D
liii Chevron lliiiil Salt Lake Refinery
1' = 500'
E F G
n ro ~ u cts CO m non V ~I =--..,D E'-=--N'--TI F-=-:.1 E_D'---'--'W"'-'-'E'---'--"TL....:....:...Ac.=cN D=-.,_S__;O=-..:....:N=--R=...:..E~FIC!.!...:N E__;R::<....:....Y .:..:.....:..P'-!.::R O=--P_E_R T_Y __ I U 1 ; ~EAST OF NORTHWEST OIL DRA IN CANAL
DA TE 11-20-08
c.c.
s.o. FIGURE 3-3
1
2
3
4
(/) w
f-
0 z
A B
SEE APPENDIX A FDR DETAILED WETLAND MAPS
•• DESIGNATES CORPS OF ENGINEERS 404
APPLICATION IN PROGRESS FDR RELOCATION
DR GW
DR APP .
ENGR .
OPR'G. DEPT .
ENG'R . DEPT.
C
CH . GW ---------..~ ... "" ... , ■ ■
APPROVED ~'1.#j -......-~
EarthFax
SCALE
D
I.iii Chevron Iii' Salt Lake Refinery
1 • = 500'
E F G
n ro ~ u cts Com no nv 1-'-I =-=D E::..:.....:.N-!...!..TI F:......:..:I E=D_W:....:...=E:....:....:TL=.!....:AC!...!..!N D:c..=Sc........:O,:c__,_N,___,Rc..!.!::E:.!....!Fl.!....!..!N E=:.!....:R~Y _,_P__,_,_R O~P-=-E~R T--'-Y----1
I U ~ J EAST OF NORTHWEST OIL DRAIN CANAL
DA TE 11-20-08
c.c.
s.o. FIGURE 3 -4
•
1
2
3
4
A
..
--~~~•~ ..
INDEX
OPERATING AREA
153 ACRES
OTHER OWNERS
20 ACRES
WETLANDS
200 ACRES
ENVIRONMENTAL
RESTRICTIONS
43 ACRES
□PEN AREA
145 ACRES
TOTAL= 561 ACRES
OUTSIDE PERIMETER OF
PROCESS UNIT BLAST
ZONES= 124 ACRES+/-
B C
-~t:t~~i~, 1~~ 1~-~.~ •111111 11 11~ ~~ :_:.~~·~· IW~~~·•.-r .... -.w !1 -~~.~~:~:~~~ . ~'II I~!•!~.~.~~ ~·r-z ~1 •• ,.,.,.,,. =...
-~·~•!•.~·· ~~.~~~~~,, ~1~.~.~.~~-~ -~~~~~
D
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.,~~.~· &¢~~· t ~~· -~,....-/ ~. -•~PIii ,, !r: _,... --. -·• ~•i-[ ~ .---......... ..!
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I -~~ ... ~ ... ~•1.~\~l 'i:' •·T-~ .~~ ~:f· • 1 '""0-t,\,','"~' .,=. ':, § •,.,·. ··.,. ,'-·'.,. · .. · ~ ".·-: . ~~· . ~ ·ii .,•·
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-~-~, ..... llli.~~~·~~~,~~=·~:lli,-::'.;":-=-"'~~~-=~-p.ij7~~~
REVISIONS
FIGURE 1 FDR LOCATION 560 53 ACRE CONTIGUOUS PROPERTY BOUNDARY, SEE
AREA SHOWN IS THE , NORTHERN 0, 94 ACRES ◊
◊
◊
◊
OF THE WESTERN 2. 89 ACRES AND
E F G H
.Y ~-,!.~·-·~~H 'm
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I i:j , .... , -,, •
\ I
LAND USE PLAN ~ a Chevron d th ~ ~ lliiiiiilll Environmental. Management Company an e
LAND USE ALLOCATION MAP
EarthFax 11 22-08 APPROVED 1' = 300' DATE -SCALE
DR. G\IW CH.
□PR' G DEPT.
ENGR. GWW DR. APP.
ENG. DEPT.
C. C.
S. □.
FIGURE 6-1
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2
3
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~ HIGHEST POTENTIAL FDR
m GOOD POTENTIAL FDR EXPANSION
LESS FAVORABLE FDR EXPANSION
~ NOT SUITABLE FDR EXPANSION
SEE TEXT FDR DETAILED DESCRIPTION OF BLOCKS
1 -1. 1 --
B
DR APP.
ENGR.
OPR'G. DEPT.
ENG'R. DEPT.
C
---------r..,..,_,. ,. ,.,
■ • APPROVED ~'-1..4 ...... -.......
EarthFax
SCALE
D
l'iii Chevron lliiiill Salt Lake Refinery
1, = 600'
E F G
~roo ucts Com ro n1 r--E~XP~A~N=-'-SI O=--'--N'-------'S=-=U..:......:...I T:......:..=AB'-'-=IL.!...,!,_I TY.,!...._..!,,!_M A_,_,_P _____ _____.
DATE 12-05-08
c.c.
s.o. FIGURE 7-1
1
2
3
4
Chevron Products Company Land Use Inventory
Salt Lake Refinery and For Future Expansion Planning
Chevron EMC Summary Report
Salt Lake City Utah
December 8, 2008

APPENDIX A

LEGEND
'-_ -_:_J Project Area (approx. 9 .50 acres)
r ---
1 Mitigation Area (approx. 3.70 acres)
'-----
S sp 8 Sample Point
f>&™
v½i1/A
Welland within Mitigation Area
(3 .16 acres)
Wetland outside Mitigation Area
(0 .57 acres)
Total Wetland Area (3.73 acres)
i ~,. Note : Map from AGRC [:] ~ WETLAND DELINEATION
N MAP
~ EAR T HFAX
■10-WEST, Inc.
106/~ l.fflO ir,.o,th. l04,ll,t, lr.ah j I I CHEVRON
_,..bb~oom SALT LAKE CITY, UTAH O S.751 . .fJO) 150' 300'
A,.
BIO-WEST, Inc.
1063 West 1400 North
Logan, Utah, 84321
www.bio-wesl.com
435-752-4202
--Canal
-Open Water = 2 .32 acres
CJ Uplands = 24.5 acres
-Existing Wetlands = 69.34 acres
~ Marketing Terminal
Preserve 37 .3 acres
of Existing Wetlands
~if!,....::.-''~ Bonneville Canal Road
PROPOSED MITIGATION AREA
CHEVRON PRODUCTS COMPANY
SALT LAKE REFINERY
November 2008
Mitigation Preserve
1.3 acres of Existing Wetlands
0 37.5 75 225 300
■Mc:JM-=:..i--======-■-•Me1ers
150
I
I
I
'&,.
I BIO -WEST, Inc.
l ~J l\\"\tl..«)~lhlf..'Q,lr.11.l'I
W';\,, ~·J \\<"'l (,~r
H l~S/l }V}
LEGEND [ -J Pcoject A,ea (a pprox. 11.6 acres)
Deli neated Wetland (approx. 10.60 acres)
S sp 1 Sample Point
Note: Map from AGRC
0 150' 300'
WETLAND DELINEATION
MAP
EARTHFAX
CHEVRON 3
SALT LAKE C ITY , UT AH
6,.
BIO-WEST, Inc.
1063 West 1400 Nortn
Logan , Utah , 8432 1
www.b10-wes t.com
435 ,752-420 2
Westland Delineation -Map
Bonneville Canal
Earthfax, Chevron
Legend
• Sa mp le Point
-Bonn evill e Canal = 0.75 acr es
& ..
BIO-WEST, Inc.
1063 West 1400 North
Logan . Utah . 8432 1
www.bio-west.com
435-752-4202
Wetland Delineation Map
Pond 2
Chevron Products Company
Salt Lake Refinery, June 2008
Leg end
• Sa mpl e Po int
-Po nd 2 = 5 .25 ac res
Chevron Products Company Land Use Inventory
Salt Lake Refinery and For Future Expansion Planning
Chevron EMC Summary Report
Salt Lake City Utah
December 8, 2008

APPENDIX B

>---w
A
!
Jr r•• s
!
SOLID WASTE MANAGEMENT UNITS
~ HAZARDOUS WASTE UNITS
B C
.....
ALSO INCI.IJl)[I):
• CONV[YAIIC[ DITCH[$
• l'IP£WAYS AND MAlllf"CiD PADS
DR GW CH . GW ------DR APP . _____ 1 ---,, ..........
ENGR .
OPR 'G. DEPT. APP R OVED
ENG'R. DEPT.
,., .. , • • l~-' ..._-_...
EarthFax
SCALE
D
p ]
DD
l;i Chevron lliiiiil Solt Lake Refinery
1' = 600'
E
o==J
Et
□□
DD
DD
@ □
RAILCNI
I.OADIIG
All£,\
F G
AP SHOWING WASTE MANAGEMENT AREAS
Products Company 1-D_E_FI_N E_o_,_N _TH_E_19_9_1 _co_R_R_Ec_TI_VE_A_cT_1o_N_o_R_DE_R-----t
DA TE 11-20-08
C .C.
S .O. FIGURE 1-1
1
2
3
4