HomeMy WebLinkAbout2016-02-22 PACKET 06.7.STAFF REPORT CASE: MP16-011
ITEM: 6.7
PUBLIC MEETING DATE: 2/22/16 TENTATIVE COUNCIL REVIEW DATE: 3/16/16
APPLICATION
APPLICANT: Aggregate Industries — North Central Region, Inc.
REQUEST: 2016 Mining Permit to continue their mining operations on Lower Grey
Cloud Island (Nelson Mine).
SITE DATA
LOCATION: 11250 Grey Cloud Trail South
ZONING: 1-4, Commercial Excavation District
GUIDED LAND USE: Transition Planning Area
LAND USE OF ADJACENT PROPERTIES: CURRENT GUIDED
NORTH: Mooers Lake Mooers Lake
EAST: Rural Residential Rural Residential
SOUTH: Mississippi River Mississippi River
WEST: Mississippi River Mississippi River
6'iPAEF
DENSITY:
Stripping and Mining Area = approximately 7 to 10 acres
RECOMMENDATION
Approval, based on the findings of fact and subject to the conditions
stipulated in this staff report.
J,naove
Grge COTTAGE GROVE PLANNING DIVISION
%e Frlde and P,osPed�y Meet
Planning Staff Contact: John McCool, Senior Planner; 651-458-2874; imccool(@cottage-grove.org
Application Accepted:, 2/4/16 60 -Day Review Deadline: 4/3/16
City of Cottage Grove Planning Division • 12800 Ravine Parkway South • Cottage Grove, MN 55016
Planning Staff Report
Aggregate Industries — Annual Mining Permit
Planning Case No. MP2016-011
February 22, 2016
Proposal
Aggregate Industries — North Central Region, Inc. has submitted their annual mining permit ap-
plication to continue mining and processing aggregate materials in the Nelson Mine located at
11250 Grey Cloud Trail. The aggregate materials will be incorporated into various products in
the Twin Cities metropolitan area and are used for ready mix concrete and/or asphalt in the
construction of highways and buildings, etc. The 2016 Mining Operations Plan proposes the
following:
• Mine and process between 800,000 to 850,000 tons of aggregate materials.
• Strip topsoil from between 7 to 10 acres west of the existing dredging area.
• Dredge at an average depth of 90 feet and in some areas to a depth of 125 feet below the
normal water level.
• Processing, washing, screening, and loading aggregate materials onto barges and trucks.
• Operate 24 hours per day seven days a week.
Location Map
A copy of Aggregate Industries — Nelson Plant 2016 Operation Plan is attached.
Planning Staff Report— Planning Case No. MP2016-011
Nelson Mining Plant—Annual Mining Permit
February 17, 2016
Page 2 of 8
Ordinance Requirements
City Code Title 3-10 requires an annual mining permit which must be reviewed by the Planning
Commission within 60 days after the completed application has been accepted by the City. The
Planning Commission's recommendation is forwarded to the City for final action. The purpose of
the annual mining permit is to:
• Ensure the restoration of the mined area is consistent with existing and planned land use
patterns and to promote appropriate reuse of the mined areas;
• Ensure conformity of mining operations with the City's Critical Area and Comprehensive
Plans;
• Control the effects of noise, dust, erosion, traffic, drainage, ground water pollution and other
factors related to mining in general.
Background
In 1950, property owners Paul K. and Mary Schilling entered into a lease agreement with the J. L.
Shiely Company (now known as Aggregate Industries) to mine sand and gravel on Lower Grey
Cloud Island. Supplemental lease agreements have been negotiated over the years. In 2001, Ag-
gregate Industries signed a new lease with the property owner, allowing mineral extraction on
the Island for 20 years. Aggregate Industries projects that sand and gravel resources within the
existing Nelson Mine could be mined for another 15 to 20 years. Aggregate Industries has tempo-
rarily suspended the preparation of an Environmental Impact Statement for mining the area directly
south of the eastern end of Lower Grey Cloud Island. This area was referred to as the "Mississippi
River backwaters" adjacent to the main island. Aggregate Industries estimated that underwater
mining the backwaters area would add an additional 20 years based on current market trends,
geologic variations, and aggregate resources.
Several studies and reports were prepared in the 1970s to serve as a guide in reviewing annual
mining permit applications and reclamation plans. On October 12, 1982, the Lower Grey Cloud Is-
land Reclamation Concept Plan was approved by a City of Cottage Grove Reclamation Commit-
tee. A mining plan prepared by B.B. Chapman in 1982 is part of that document. A copy of this plan
is included in the applicant's 2015 Mining Permit application. With some exceptions, the proposed
2016 Operations Plan generally replicates landforms and topography as approved in 1982.
Dredge Operations
A dredge is used to excavate raw aggregate materials. This dredge is of a "twin -clamshell" de-
sign and is one of the largest machines of its type. The dredge is a 100 -foot by 100 -foot by 60 -
foot high floating dredge that weighs approximately 550 tons. Assembly of the dredge was com-
pleted in 1995, and the dredge was equipped with sound -absorbing equipment in 1996. The
dredge is used to reach sand reserves below the water surface. Its de -sanding capability and
initial crusher that crushers rocks to smaller than six inches in size allows the operator to reclaim
up to 400 tons of sand per hour without unnecessary re -handling. The dredge can mine 1,200
tons of aggregate material per hour at 60 feet below the water surface. This year's mining plan
proposes a mining depth between 90 to 125 feet.
Planning Staff Report— Planning Case No. MP2016-011
Nelson Mining Plant—Annual Mining Permit
February 17, 2016
Page 3 of 8
Mining Operations
After the material is excavated by the dredge, the mined aggregate is transported by a conveyor
system that is about 1.7 miles long to the processing plant located at the west side of Lower
Grey Cloud Island. The processing operations include crushing, washing, sorting aggregate and
sand materials by size, and then loading onto barges or trucks.
The majority of the material is transported by barge up the Mississippi River to distribution yards
in St. Paul and Minneapolis. Last year, approximately 688,431 tons (approximately 95 percent) of
the materials were transported by barge. Approximately 1,651 tons was transported by truck to
State Trunk Highway 61 and approximately 36,215 tons (approximately 5 percent) were trans-
ported to the ready mix facility on-site. The trucks generally travel on Grey Cloud Trail to 103rd
Street, east to Hadley Avenue, north to 100th Street, and then to U.S. Highway 61. The barge
fleeting facility can store approximately 18 barges. A single barge can carry between 1,200 to
1,300 tons.
A summary of the Nelson Mining operations since 1995 is attached.
Planning Considerations
Proposed Mining Operations
The 2016 Operation Plan does propose to remove trees and brush from an area that is between 7
to 10 acres located west of the existing dredging operation. Stripping of topsoil will be conducted in
an area that is between 7 to 10 acres in area. Loaders, scrapers, and haul trucks will stockpile this
material for later reclamation or immediately placed on a reclaimed area. Tree removal and strip-
ping topsoil is proposed to occur west of the current dredge location.
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Proposed 2016 Operations Plan
Planning Staff Report— Planning Case No. MP2016-011
Nelson Mining Plant—Annual Mining Permit
February 17, 2016
Page 4 of 8
Similar to previous operation plans, the applicant is required to take appropriate measures to en-
sure there is no erosion to stockpiles or earth -berms. At the base of each slope, a channel must be
constructed to control runoff. The channeled water shall be diverted to a sedimentation basin
before being allowed to enter any natural drainage system. Erosion control measures must be im-
plemented within a reasonable amount of time for the stockpile and berm.
Environmental Impact Statement Process
The applicant is not proposing to mine within the Mississippi River backwaters or river channel dur-
ing their 2016 operations, but is interested in mining these areas sometime in the future. Because
of potential environmental impacts mining in the backwaters might have, Aggregate Industries had
filed an Environmental Impact Statement application with the City in May 2008. The City hired Barr
Engineering to provide consulting services to prepare an EIS that complies with State environmen-
tal rules and the National Environmental Policy Act. The draft EIS document was scheduled to be
completed in late 2012. Aggregate Industries has temporarily suspended the preparation of an
EIS. If the preparation of the EIS proceeds, the Planning Commission will have the opportunity to
review the EIS document in the future. The City's review of their 2016 Mining Permit application
does not include any approval to mine within the backwaters or main river channel.
Reclamation Plan
The 2016 Operations Plan shows most of the Nelson Mine perimeters have been reclaimed or are
undisturbed buffers. In 2016, site preparation for reclamation will continue in the central area of the
Nelson Mine area and along the south side of the larger body of water located in the southeast
corner of the mine. Areas where waste -sand will be deposited will be north of the conveyor system
and along the south embankment south of the dredging operation. Stabilizing the shoreline around
all water bodies within the mine area will also continue.
In 2010, Aggregate Industries and Great River Greening initiated the reclamation oak savanna
plots within the Nelson Mine. Areas previously disturbed by mining were graded to establish rolling
terrain and pot -hole lakes to mimic the original native prairie of this area. Some of the reclaimed
ground was seeded with native prairie species and 60 oak saplings were planted and mulched in
the oak savanna plots. Fencing was placed around the plots to delineate and deter the deer from
these protected groves. In 2011, another 68 oak saplings were planted in three new groves. In
2013 and 2014, competing woody vegetation was removed from the fenced areas and fencing was
repaired.
In 2013 and 2015, Aggregate Industries monitored the oak groves and initiated preventive
measures to ensure their establishment. These measures included watering, insecticide spraying,
gopher control, and removal of competing sumac and grape ivy. An inspection of these oak sa-
vanna plots in the fall of 2013 and in July 2014 found many dead oak plantings. As a condition
approving the annual mining permit for 2016, all the dead oak trees within the designated oak
savannah groves must be replaced with new tree plantings and watered during dry weather condi-
tions to promote their survival.
In 2015, maintenance of the existing oak plantings continued and prairie establishment work took
place. This included prairie hand seeding bare spots on ten acres of the Interlachen Prairie.
Planning Staff Report— Planning Case No. MP2016-011
Nelson Mining Plant—Annual Mining Permit
February 17, 2016
Page 5 of 8
To identify mining and restorations operations between 2015 and the 2016 plans, a copy of both
plans are shown below. The circular shapes highlighted in bold pastel green on the 2016 Operation
Plan identifies the primary changes since the 2015 Plan.
2015 Operations Plan
Proposed 2016 Operations Plan
Planning Staff Report—Planning Case No. MP2016-011
Nelson Mining Plant—Annual Mining Permit
February 17, 2016
Page 6 of 8
Historic Sites and Landmarks
Mining activities will continue to avoid and preserve the sensitive historic, cultural, and important
natural features (remnant oak savanna) of the island. Archaeological surveys of recorded historic
sites were completed in 2009 and 2010. The results of these surveys and reports concluded that
Aggregate Industries can proceed with future mining operations. These sites have been marked
with a 50 -foot boundary around the perimeter of the Burial Mound Group 21WA9. All future mining
activities will be conducted outside the designated archaeological areas.
Interim Use — Temporary Ready Mix Concrete Plant
As an accessory use with the sand and gravel mining operations within the Nelson Mine, Aggre-
gate Industries was granted an interim conditional use permit for the production of concrete cast-
ings that will be used in the construction of a bridge over the St. Croix River, near Stillwater,
Minnesota. Aggregate materials mined from the Nelson Mine is used in mixing cement for produc-
ing concrete castings for bridge sections. This interim use is located north of Aggregate Industries'
existing processing plant location and the interim conditional use permit for this facility will expire
December 31, 2016. A zoomed -in image of this temporary facility is shown below.
Meeting Notices
A meeting notice was mailed to 15 property owners who are within a half -mile of the mine.
These notices were mailed on February 10, 2016.
City Department Review
Aggregate Industries' 2016 mining permit application was distributed to other City departments.
No comments or recommendations were received.
Planning Staff Report— Planning Case No. MP2016-011
Nelson Mining Plant—Annual Mining Permit
February 17, 2016
Page 7 of 8
Recommendation
It is recommended that a variance be granted to the ordinance requirement limiting mining op-
erations between 6:00 a.m. to 10:00 p.m. to allow the dredge to operate 24 hours per day,
seven days per week. This approval is based on the following findings of fact:
A. The city has allowed the dredge to operate 24 hours per day seven days per week since
1995 when the dredge was first installed.
B. Since the dredge has been operation, only one noise complaint was received by the city.
That complaint was received in 1996. The applicant was contacted and the problem was
resolved in a timely manner.
C. Residents are encouraged to immediately contact Aggregate Industries of any noise
issues so that the problem can promptly be identified and mitigated in a timely manner.
D. The variance relating to the hours of operation will be evaluated annually..
It is also recommended that the 2016 Mining Permit for Aggregate Industries — Nelson Plant be
approved, subject to the following conditions:
1. The provisions as stipulated in Title 3, Chapter 10 of the City's Codes (Mining, Sand, and
Gravel Operation) shall be complied with, except as modified below.
2. The applicant is responsible for removing any materials that their equipment and/or trucks
may have spilled onto any public roadway. This material shall be cleaned up immediately.
3. The outer limits of their mining operations must be a minimum of 100 feet from abutting
public right-of-way, private property, or any archeological sensitive area.
4. The "future mining" designation on the 2016 Operations Plan is only an illustration of the
applicant's future desire to mine in those areas. City approval of the 2016 Operations
Plan does not guarantee mining permit approval for areas shown as "future mining." Ap-
proval of the 2016 Mining Permit does not approve their ability to mine within the required
200 -foot setback from the Mississippi River, within the Mississippi River itself, or in the vicin-
ity of archeological sensitive areas.
5. Bituminous/asphalt, concrete, and street sweepings originating within the geographical
boundaries of Cottage Grove may be temporarily stockpiled on the site for processing (e.g.
crushing, screening, etc.) and/or reuse. Bituminous/asphalt materials are prohibited from
being buried on the premises.
6. The applicant may operate the mining operation 24 hours a day, 7 days a week. Upon noti-
fication by neighboring residents that the night-time operations (i.e. between the hours of
10:00 p.m. and 6:00 a.m.) are disturbing, the applicant agrees to voluntarily cease operation
during night-time hours until such time the noise source is identified and appropriate correc-
tions are made.
Planning Staff Report— Planning Case No. MP2016-011
Nelson Mining Plant—Annual Mining Permit
February 17, 2016
Page 8 of 8
Aggregate Industries must install erosion control devices at the base of any slope where
erosion is evident. A drainage swale must be constructed at the base of any eroding slope
to control run-off and divert it to a sedimentation basin before entering any natural drainage
system. Erosion control measures must be implemented within a reasonable amount of
time.
8. Archeological and landmark sites as identified in the burial mound group known as
21WA9 and the recorded Grey Cloud Townsite 21WA48 on Lower Grey Cloud Island
must be protected and undisturbed.
All archeological, landmark sites, and existing
damaged or adversely impacted from vehicles
historic sites.
burial mounds must be protected from being
or equipment traveling in the vicinity of these
10. The applicant is responsible for obtaining all state and federal permits relating to their
mining operations on Lower Grey Cloud Island.
11. The applicant's current reclamation plan is titled "Harbor Island Concept Plan." The City
has not provided any formal review or approval of the "Harbor Island Concept Plan." This
concept plan is only an illustration of a development concept that the applicant and land-
owner have considered. The City's approval of the 2016 Operations Plan does not guar-
antee approval or imply future approval of the Harbor Island Concept Plan.
12. The Oak Savanna Reclamation Plan, Revised 9-3-10, is still valid. If a prescribed burn is
scheduled, the applicant must notify the City and property owners on Lower Grey Cloud
Island a minimum of five business days before burning. A burning permit from the
MN/DNR is required. All oak plantings within the designated oak savanna groves must be
replaced with new oak trees and watered during dry conditions to promote their survival.
13. As the Oak Savanna Reclamation Plan is implemented, the applicant must continue to
update the City on the effectiveness of the reclamation and restoration activities, particu-
larly how many acorns are planted and how many oak seedlings are growing. If the sur-
vival number of trees is low, then another tree planting alternative will need to be
discussed.
Prepared by:
John McCool, AICP
Senior Planner
Attachments:
2016 Mining Permit Application
Historic Summary of Mining Operations
2016 Operations Plan Map
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AGGREGATE
INDUSTRIES
Aggregate Industries — Nelson Sand & Gravel
Cottage Grove, Minnesota
2016 Mine Plan
January, 2016 REC V
JAN 2 7 2016
CITY 0� COTTAGE GROVE
Aggregate Industries
Nelson Sand & Gravel
11250 Grey Cloud Trail South
Cottage Grove, Minnesota
Property Legal Description
The NE 1/4, SE 1/4, Section 31, Township 27, Range 21, South along Grey Cloud Trail; W 'h,
SE 1/4, Section 31, Township 27, Range 21; E'/Z, NE' /a, NW '/a, Section 31, Township 27,
Range 21, South along Grey Cloud Trail;WI/2, NEIA, NW '/, Section 31, Township 27, Range
21, South along Grey Cloud Trail; NW '/, NW %, Section 31, Township 27, Range 21; S%, NW
/, Section 31, Township 27, Range 21; E %2, SW '/a, Section 31, Township 27, Range 21; Lot 1,
Section 31, Township 27, Range 21; N'/2, NE 1/4, Section 36, Township 27, Range 22; S %z, NE
'/, Section 36, Township 27, Range 22; N %, SE %, Section 36, Township 27, Range 22; Lot 2,
Section 36, Township 27, Range 22; Lot 3, Section 36, Township 27, Range 22; SE '/a, SW '/4,
Section 25, Township 27, Range 22; NE '/4, NW '/a, Section 36, Township 27, Range 22; S %2,
NW '/, Section 36, Township 27, Range 22; NW '/a, SW '/a, Section 36, Township 27, Range 22;
N'/2, SW '/, SW '/, Section 25, Township 27, Range 22; S %2, SW %, SW, '/<, Section 25,
Township 27, Range 22; NW '/a, NW Y, Section 36, Township 27, Range 22; NW '/o, SW '/,
Section 36, Township 27, Range 22; N %, NE Y4, Section 35, Township 27, Range 22; S %z, NE
/, Section 35, Township 27, Range 22; SE '/a, SE '/<, Section 26, Township 27, Range 22; Lot 5,
Section 35, Township 27, Range 22; Lot 3, Section 6, Township 26, Range 21; Lot 2, Section 6,
Township 26, Range 21; Lot 1, Section 6, Township 26, Range 21; N %2, NW ''/a, Section 5,
Township 26, Range 21; Lot 4, Section 5, Township 26, Range 21; Lot 3, Section 5, Township
26, Range 21; N''/2, NE %, Section 5, Township 26, Range 21; Lot 2, Section 5, Township 26,
Range 21; Lot 1, Section 5, Township 26, Range 21; Lot 1, Section 4, Township 26, Range 21;
NE '/n SW '/a Sections 36, Township 27, Range 22; Lot 5 Section 35, Township 27, Range 22
Landowner: PAS Associates, Ltd.
c/o Hugh Schilling
2565 Walnut Street
Roseville, MN 55113
Operator: Aggregate Industries - NCR, Inc.
2815 Dodd Road, Suite 101
Eagan, MN 55121
Adjacent Landowners _.
Aggregate Industries
Aggregate Industries
Aggregate Industries
Appert, John & Julie
Resident
Boggie, Patricia
Hale, Rod & Mary
Karter, Katarina
Kartarik, Betty
Kulvich, Jean
LaChapelle, Nanette
Madsen, Fred
Maloney, Ryan & Kate
Wald, Gene & Margaret
Mining Operations
12073 Grey Cloud Trail South
Cottage Grove
12075 Grey Cloud Trail South
Cottage Grove
12085 Grey Cloud Trail South
Cottage Grove
11395 Grey Cloud Trail South
Cottage Grove
11975 Grey Cloud Trail South
Cottage Grove
11971 Grey Cloud Trail South
Cottage Grove
11701 Grey Cloud Trail South
Cottage Grove
10971 Grey Cloud Trail South
Cottage Grove
10870 Grey Cloud Trail South
St. Paul Park
11523 Grey Cloud Trail South
Cottage Grove
11973 Grey Cloud Trail South
Cottage Grove
10971 Grey Cloud Trail South
Cottage Grove
11881 Grey Cloud Trail South
Cottage Grove
11500 Grey Cloud Trail South
Cottage Grove
Aggregate Industries' Nelson Sand & Gravel Facility excavates and processes aggregate
materials which are utilized for ready mix concrete and/or asphalt products for the construction
of highways and buildings within the Twin Cities metropolitan area.
The Company currently estimates that mining will continue for another 15-20 years. These
estimates are based on current information and are subject to market trends, geologic variations
and the expansion of reserves, as additional exploration occurs. The Company has, at least
temporarily, suspended the preparation of an Environmental Impact Statement for mining the
backwaters adjacent to the main island. The addition of this proposed underwater mining area
would add approximately 20 years to the life of the mine.
The dredge at this facility will continue to carry out the mining into the foreseeable future. On
the dredge the material is initially crushed to smaller than 6 inches in size and the excess sand is
then screened off and pumped to a peninsula within the lake, to the south shoreline or into the
deepest part of the excavation for reclamation. The course aggregate blend is then conveyed to
the processing plant where it is crushed, washed, sorted by size and loaded onto barges. The
plant is expected to produce approximately 800,000 to 850,000 of aggregate in 2016.
The majority of the material from the Nelson Sand & Gravel facility is transported by barge up
the Mississippi River to the Company's distribution yards in St. Paul and Minneapolis. In 2015,
650,565 tons of aggregate were transported up river. In addition, 1,651 tons were transported by
truck on Grey Cloud Trail South to 103'd Street, east to Hadley Avenue, north to 100x' Street,
then to U.S. Highway 61 and 36,215 tons were transported to the ready mix facility on-site.
In 2016, the Company expects to complete mining within the area that has been previously
stripped. Additional stripping will take place on approximately 7 to 10 acres in the area
identified as "Stripping" (refer to the 2016 Operations Plan). Loaders, scrapers and haul trucks
will remove the topsoil and overburden material, which will be spread in the area south of the
conveyor and north of the future mining depicted as "Site Prep for Reclamation." The combined
depth of topsoil and overburden averages between 2 and 5 feet.
The Company has had extensive archaeological survey work completed in the areas depicted as
"future mining" in the western most portion of the property. This research work concluded that
the proposed expansion could be allowed to proceed without any risk to significant
archaeological resources, including Town Site 21 WA48. In addition, personnel from the Office
of the State Archaeologist's Office and Aggregate Industries marked a 50 -foot boundary around
the perimeter of the Burial Mound Group 21 WAR Future mining activities will be conducted
outside these delineated archaeological areas.
Reclamation
The 2016 Operations Plan depicts roughly 265 acres which have been reclaimed to date.
The current plan for reclamation of Lower Grey Cloud Island is depicted on the Landowner's
attached Harbor Island Concept Plan. This concept proposes a planned unit development of
mixed residential, commercial and marina uses. The Company's reclamation efforts will follow
this concept in general terms.
Ongoing reclamation efforts will continue in 2016 and beyond, by creating the large lake and
peninsula, as well as slope and shore stabilization/establishment and re -vegetation. The ultimate
lake shape will be similar, but smaller than that which is depicted on the attached Mining Plan by
B.B. Chapman. All slope reclamation will be at 4:1 or flatter. In 2015, approximately 10 acres
on the east shore of the large lake was reclaimed; topsoil was spread and dormant seeding took
place in late October using a native seed mix. Additionally, a prescribed burn took place on
approximately 14 acres of previously established native prairie to control the growth of brush
and trees (refer to the 2016 Operations Plan).
Upland restoration efforts will continue in the area located to the far northwest of the large lake
and north of the main conveyor alignment, as depicted on the 2016 Operations Plan. Waste sand
will continue to be placed in the area, which will ultimately be reclaimed to elevations at least
three feet higher than the 100 -year flood plain.
In 2010, the Company implemented an Oak Savanna and Prairie Reclamation Plan. Essentially,
all reclamation of the uplands on the disturbed areas of Lower Grey Cloud Island will focus on
the re-establishment of an oak savanna and prairie. The Company has contracted with Great
River Greening to guide its' reclamation efforts and ensure the viability of the plantings. Annual
contributions have included and will continue to include: site grading, topsoil placement, soil
preparation, native grass seeding, oak saplings and acorn planting, herbicide treatment of non-
native vegetation, brush and tree removal of non-native woody species and maintenance burns.
In the fall of 2010, 60 oak saplings were planted and mulched in the Oak Savanna and Prairie
Reclamation area depicted on the 2016 Operations Plan. Fencing was put in place to delineate
and deter the deer from these protected groves. In 2011, another 68 oak saplings were planted in
three new groves. In 2013 competing woody vegetation was removed, which included
vegetation that was interfering with the deer fence and the fencing was also repaired, where
necessary. In addition, invasive black locust was removed and spotted knapweed was pulled as
part of the site prep for prairie seeding.
In 2014, maintenance of the existing oak plantings continued and prairie establishment work
took place. This included prairie hand seeding bare spots on 10 acres of the restoration area.
Tree planting occurred in the fall and included "local ecotype" plantings of: 42 small pin oaks, 2
large pin oaks, 2 large hackberrys, 10 ninebark shrubs and 3 sand cherry shrubs. Maintenance
work consisting of black locust control, sweet clover and crown vetch control also took place in
2014.
In 2015, work continued in the Oak Savanna and Prairie Reclamation area which included tree
and shrub maintenance, herbaceous invasive species control and black locust removal.
In 2016, the Company will continue maintenance work in this area, including maintenance of the
tree grove and prairie invasive species control. In addition, foliar treatment of root sprouts will
take place where black locust trees were removed in 2015.
(The Remainder of this page left blank intentionally)
SRN -27-2016 11:12A FROM:HUGH SCHILLING 4808168431 TO:16516838108 P.1/1
Acknowledgement and Signature: Aggregate Industries — NCR, Inc., as the Mining Operator,
hereby represents upon all of the penalties of the law, for the purpose of inducing the City of
Cottage Grove to grant an Annual Mining Permit, that all the statements are true and that all
work will be done in accordance with the ordinance of the City of Cottage Grove and the laws of
the State of Minnesota.
Aggregate Industtries — NCR, Inc.
BY. l —
Its: Lo\nd
Dated: �(�tnuG
foan(akt----
Acknowledgment and Signature: PAS Associates, LTD, as Landowner, hereby consents to the
2016 Operations Plan, as represented by Aggregate Industries - NCR, Inc.
PAS Associates, LTD
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