WI0700012_Monitoring (Report)_20220824

Nutrien-
CERTIFIED MAIL
August 24, 2022
NC Division of Water Resources
Groundwater Resources Section
Attn: Michael Rogers
1636 Mail Service Center
Raleigh, NC 27699
Subject: Underground Injection Control Program
Quarterly Groundwater Monitoring Report
May 2022 — July 2022
Injection Well Permit #WI0700012
PCS Phosphate Company, Inc.l
Tank Farm Remedial Action System
Please see attached for the groundwater monitoring report associated with Injection Well Permit #W10700012
and the Tank Farm Remedial Action Plan. This report includes the sampling and reporting requirements of
the above referenced permit as well as the reporting requirements of the Tank Farm Remedial Action Plan.
Enclosed are a) piezometer level monitoring field sheet and b) the operational and maintenance report.
Please do not hesitate to contact me at [phone] ext. 8573 if you have any questions regarding this
information.
Sincerely,
Shelby S. Wiggins
Environmental Engineer
Nutrien
Attachments
PC: 12-07-02
(w/ attach)
ec, T. E. Herring
(w/ attach)
J. A. Casey
(w/ attach)
J. C. Stroud
(w/ attach)
H. B. Mills
(w/ attach)
1530 NC Hwy 306 South, Aurora, NC USA 27806
1 Effective January 1, 2018, PCS Phosphate Company, Inc. is an indirect subsidiary of Nutrien Ltd. PCS Phosphate Company, Inc.
remains the legal operating entity and permittee.
nubien.com

PCS PHOSPHATE - TANK FARM REMEDIAL ACTION PLAN
QUARTERLY OPERATIONAL AND MAINTENANCE REPORT FOR THE INJECTION AND
WITHDRAWAL WATER WELLS
May 2022 — July 2022
The Tank Farm Remediation System consists of a series of seven- (7) injection water wells located on the
south side of the Tank Farm Area and a series of fourteen (14) withdrawal water wells located on the north
side of the Tank Farm Area.
In'ection Water Well System
The injection water well system is operated with mine depressurization water (DPW).
Daily operational data is collected by the Shipping Department and reported to the Environmental Affairs
Department. The total monthly and quarterly volumes of water injected as well as the month end water level
in the Water Level Control Tank are:
DPW WATER
GALLONS
TOTAL
GALLONS
AVERAGE
GPM
TANK
LEVEL
FEET, MSL
May
264,666
264,666
5.9
11.5
June
261,863
261,863
5.9
11.4
July
256,342
256,342
5.7
11.3
TOTALS
782,871
782,871
Withdrawal Well Sv stem
The withdrawal water well pumps are monitored daily by the area Maintenance Department and preventative
maintenance work is performed as needed. The total monthly and quarterly withdrawal water volumes for
the period are:
SAND CROATAN
FORMATION FORMATION
GALLONS GALLONS
TOTAL
GALLONS
AVERAGE
GPM
May
340,620
732,257
1,072,877
12.0
June
920,584
609,395
1,529,979
17.7
July
474,966
658,559
1,133,525
12.7
TOTALS
1,736,170
2,000,210
3,736,381
2

No maintenance activities performed.

Date:
Time:
Tech:
Tank Farm Remediation System Quarterly Monitoring
7/8/2022
1300 hrs
Mills
S stem Gau a Pressures
SWW-1
N/A
N/A
SWW-7
CWW-1
NfA
CWW-7
N/A
File: 12-07-D2
Re}erenca vel Rel
Pai�rt MSL oMSL
Ditch
12.91
8.64
Bare Slip
10.59
1.29
Water Level
Control Tank
65 %
11.58
% = MSL
Sand Layer Peizometers Level Indicators
Well ID
TO
Elevation
MSL'
TOC
Stc Wtr
Level '
Level
Relative To
MSL Ft.
Well ID
TOC
Elevation
MSL'
TOC
Ste Wtr
Level '
Level
Relative To
MSL Ft.
z-1
10.47
1.62
8.85
G z-1
10.51
11.48 -0.97
S z-2
11.21
5.9
5.31
z-2
10.25
12.77
-2.52
S z-3
11.87
6.96
4.91
C z-3
11.43 **
13.01
-1.58
S iz-4
11.45
5.41
6.04
CPW
10.67 `*
11.6
-0.93
S pz-5
11.45
9.3
2.15
MWTF-1A *
14.35
4.351
10
S z-6
11.23
9.66
1.57
MWTF-1 B *
14.36
4.75
9.61
5 z-7
11.59
14.22
-2.63
MWTF-IC *
14.44
11.3
3.14
S z-8
11.57
7.4
4.17
MWTF-2A
14.05
7.56
6.49
5 z-9
11.66 ** 1
9.691
1.97
MWTF-2B
14.02
12.12
1.9
S z-10
12.16
5.2
6.96
MWTF-2C
14.08 **'
6.65
7.43
SPW
11.00 **
14.19
-3.19
MWTF-3A
12.21
2.93
9.28
" Rizer length added to TOC elevation 7/2019
*** Riser is at ground/concrete level
MWTF-3B
12.18
10.78
1.4
MWTF-3C
12.19
16.42
-4.23
44 6 MO 9- //- 2,,,