DSHW-2024-007716

Wade Hess <[e-mail]>
Cell 7 E&P Landfill Permit Additions
Bret Reynolds <[e-mail]>Thu, Aug 8, 2024 at 2:49 PM
To: Wade Hess <[e-mail]>, Todd Bro <[e-mail]>
Cc: Brian Speer <[e-mail]>, "Cahoon, Brad R." <[e-mail]>
Wade
The closure plan has been revised to go with the standard cover. The alternative cover was eliminated.
The facility legal description has been revised to reflect the boundaries of cell 7.
[Quoted text hidden]
2 attachments
Closure Plan (8-6-24).pdf
275K
Facility Legal Description (8-6-24).pdf
184K
8/8/24, 4:10 PM State of Utah Mail - Cell 7 E&P Landfill Permit Additions
https://mail.google.com/mail/u/0/?ik=7a8f3b10ce&view=pt&search=all&permmsgid=msg-f:1806853887063979009&simpl=msg-f:1806853887063979009 1/1
CIVCO Engineering, Inc.
Civil Engineering Consultants
PO Box 1758 * 1256 W 400 S, Suite 1
Vernal, Utah 84078

Phone [phone] * Fax [phone]
Email: [e-mail]

ENVIRONMENT ENERGY INNOVATIONS
PLEASANT VALLEY, UTAH

CLOSURE DESIGN PLAN

Introduction
At the end of the life of the Environmental Energy Innovations, LLC (EEI) facility it will be closed
according to R315-302. The following is a brief plan for closure of the facility and each cell and is
subject to amendment if conditions and circumstances justify an amendment.

Closure Procedures

The following procedures will be followed:
1. Notify the Executive Secretary of intent to close 60 days prior receipt of final material.
2. Commence closure procedures within 30 days of receipt of final material. Closure
activities will be completed within 180 days of commencement of closure activities.
3. Within 90 days of completion of closure activities, submit a copy of the closure
plan and certificate that closure has been performed per the closure plan. These
must be stamped and signed by a State of Utah Licensed Professional Engineer.

Closure Schedule
It is anticipated that the proposed EEI facility will be closed, one 10-acre cell at a time, including the
final grading of the waste material and the placement of the final cover. Sixty days prior to the
expected final receipt of waste, EEI will notify the division of their intent to begin closure operations.
EEI will begin the closure operations after the final receipt of waste is obtained. It is anticipated that
each closure operation will take place over an anticipated duration of 90 to 120 days. During this
period, the EEI facility cell will be graded, covered, and surveyed. As-built plans will be generated for
reference for the final inspection by the division.

Design of Final Cover for each 10 Acre Cell
The final cover will consist of two soil layers meeting the requirements of R315-303-3(5). The first layer
will consist of at least 18 inches of compacted soil, or equivalent, with a permeability of 1 x 10-5 cm/sec
or less, or equivalent with surface slopes grades not less than 2% and the side slopes grades not more
than 33%.
The second layer will consist of at least six inches of soil capable of sustaining vegetative growth and
seeded with grass, other shallow rooted vegetation, or other native vegetation.

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Markers or other benchmarks shall be installed in any final earthen cover to indicate the thickness of the
final cover.

Capacity of EEI Facility
Based on the assumption of half the waste being mixed with additional material, the estimated capacity
of the (1) EEI facility cell up to the final cover is approximately 343,000 cubic yards of waste plus mixing
material. This calculation also accounts for an estimated dry density of 135 lb./cu-ft for the mixing
material. In total, the EEI facility will store approximately 4,117,000 cubic yards of waste plus mixing
material after all 12 cells are built. An additional 2,058,500 cubic yards of waste can be accommodated
by filling in between the completed cells and building upward after the first 12 cells are filled in.

A table with the projected life at 10 percent growth rate, capped at 50,000 cubic yards of waste plus
mixing material per year, for the EEI facility is provided in Table 1 below. The growth rate is defined as
the number of trucks delivered to the site on an average daily basis. With an increase in the growth rate,
the life of the EEI facility will be reduced.

It will take eight years for the first cell to be completed, and then seven years for each cell thereafter
to be completed. This process will take 85 years to fill in 12 cells. The EEI facility can have its life
expectancy extended 50 years by filling in between these completed cells with waste after the initial
12 are built, as well as building additional cells on top.

Cell

Growth
Waste Delivered
to Site per Day
(cuyd)
Onsite Material
Mixed with Waste
(cuyd)
Total Material to be Spread on Site (cuyd)
Year
Cell
Volume
(cuyd)
Day
(cuyd)
Week
(cuyd)
Year
(cuyd)
Cumulative
(cuyd)
0.1 70.00 35.00 105.00 630.00 33000 33000 1
0.1 77.00 38.50 115.50 693.00 36000 69000 2
0.1 84.70 42.35 127.05 762.30 40000 109000 3
0.1 93.17 46.59 139.76 838.53 44000 153000 4
0.1 102.49 51.24 153.73 922.38 48000 201000 5
0.1 112.74 56.37 169.10 1014.62 50000 251000 6
124.01 62.00 186.01 1116.08 50000 301000 7
#1 136.41 68.21 204.62 1227.69 50000 351000 8 343000
150.05 75.03 225.08 1350.46 50000 401000 9
165.06 82.53 247.58 1485.51 50000 451000 10
181.56 90.78 272.34 1634.06 50000 501000 11
199.72 99.86 299.58 1797.46 50000 551000 12
219.69 109.84 329.53 1977.21 50000 601000 13
241.66 120.83 362.49 2174.93 50000 651000 14
#2 265.82 132.91 398.74 2392.42 50000 701000 15 686000

Table 1: EEI Facility Growth Rate

Final Inspection
After the completion of the final cover, the final inspection of each EEI facility cell will be
conducted by officials from DWMRC. EEI will notify the division of the anticipated date of

Page | 3

completion and plan for scheduling the inspection.

POST CLOSURE CARE

Immediately after the completion of construction for the final cover of a EEI facility cell, the post
closure care plan will be implemented. As required in R315-302-3(5) the post closure care activities will
take place for 30 years or as long as the Director determines is necessary for the facility or unit to
become stabilized and to protect human health and the environment. A licensed engineer with the
state of Utah will direct the post-closure care of the facility and will provide EEI with recommendations
to properly maintain the EEI facility and prevent any release of harmful substances. The engineer will
also provide the division with documentation if he determines that the site is safe to reduce or
discontinue site monitoring prior to the end of the 30-year period.
During the post closure period the following activities will take place:
Site Monitoring: EEI personnel will be on site weekly to monitor activities at the proposed EEI facility
and restrict access to the facility. Access to the proposed EEI facility will be restricted with fencing and
locked gates at the roadway entrance. Signs will be posted advising of the potential dangers
associated with the EEI facility. Only authorized personnel of EEI will have access to the site.
Markers or other benchmarks installed as part of the closure plan will be observed during each quarterly
inspection and the earthen cover shall be raised to the appropriate thickness as necessary. Erosion
channels deeper than 10% of the total cover thickness shall be repaired as soon as possible following
their discovery.
On a quarterly basis the EEI facility cover will be inspected to check for rutting and depressions that
could result in rapid erosion. If rutting or depressions in the cover are identified, they will be repaired
by grading and seeding the surface. Slopes of the final cover will also be inspected and maintained. EEI
will ensure that a 2% slope will be maintained on the top of the cover and a 3:1 slope will be
maintained around the perimeter of the EEI facility.
Run-off water from the final cover will be directed into the existing drainages to the north and west of
the EEI facility. EEI will on a Quarterly basis inspect the run-off collection system and ensure that they
are properly diverting water into the existing storm water drainages. Repairs will be made as needed.

Surface and Ground Water Monitoring: No samples of surface waters will be collected because there
are no observed streams, springs, or other surface waters at the site of the proposed EEI facility.
Ground water will not be sampled as the test holes taken did not encounter groundwater.

Record of Title, Land Use, Zoning
The Duchesne County Recorder will be notified during the closure period of the completion of the
disposal site. The county recorder will be provided with documentation and plats of the location of the
disposal site. Notification of the closure, and location of the EEI facility will also be sent to the county
recorder and zoning changes will be made if necessary. Documentation of the history of the EEI facility
permanently appended to the title of record and land use restrictions will be put in place.

Page | 4

Post Closure Contacts
The point of contact during the post closure care period for this facility is Todd Bro. His contact
information is provided below:
Todd Bro
P.O. Box 1389 Roosevelt Utah 84066
Telephone: [phone]

CIVCO Engineering, Inc.
Civil Engineering Consultants
PO Box 1758 * 1256 W 400 S, Suite 1
Vernal, Utah 84078

Phone [phone] * Fax [phone]
Email: [e-mail]

ENVIRONMENT ENERGY INNOVATIONS
PLEASANT VALLEY, UTAH

Legal Description

The project is located in Pleasant Valley, approximately 3 miles South of US 40, in Section 18,
Township 4 South, Range 2 West. The attached plats show the boundaries and legal
descriptions of the property. The attached warranty deeds provides the proof of ownership.

Cell #7 is a trapezoid-shaped cell located along the southern border of the facility property. The
northern border of the cell is nearly parallel to the southern border of the facility. The distance from the
northern border to the southern border of the cell ranges from 250 to 290 yards. The eastern border of
the cell is 240 yards west of the eastern border of the property. The western border of the cell is 440
yards east of the western border of the property. The distance between the eastern and western
borders is 255 yards.

Cell 7 Perimeter distances: North side, 275 yards; East side, 247 yards; South side, 290; West side, 288
yards
Cell 7 Acreage: 13.9 acres
Cell 7 Corner latitudes, longitudes: Northwest 40°08'14'' N 110°08'50''W; Northeast 40°08'17'' N
110°08'40''W; Southeast 40°08'10'' N 110°08'40''W; Southwest 40°08'05'' N 110°08'50''W

*All distances, sizes, and locations are approximate