WI0700012_Monitoring (Report)_20230906 (2)

dutrien-
CERTIFIED MAIL
August 31, 2023
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 2023 — July 2023
Injection Well Permit #WI0700012
PCS Phosphate Company, Inc.l
Tank Farm Remedial Action System
Dear Mr. Rogers,
DECEIVED
SEP 06 2023
NO DEq/DWR
Central Office
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 sheets, b) the operation and maintenance
reports.
Please do not hesitate to contact me at [phone] if you have any questions regarding this information.
Sincerely, ��++ ��
d�,i,-E�rn�- l.U.��ia.
Brittany Curtis
Environmental & Technical Services Specialist
Nutrien — Aurora
Attachments
PC: 12-07-02 (w/ attach)
ec: J.C. Stroud
T. E. Herring
J. A. Casey
H. B. Mills
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.
nutrien.00m

RECEIVED
SEP 06 2023
NC DEQ/DWR
PCS PHOSPHATE - TANK FARM REMEDIAL ACTION PLAN Central Office
QUARTERLY OPERATIONAL AND MAINTENANCE REPORT FOR THE INJECTION AND
WITHDRAWAL WATER WELLS
May 2023 — July 2023
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.
Infection Water Well Svstem
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
258,857
258,857
5.8
6.4
June
234,082
234,082
5.2
6.3
July
232,720
232,720
5.2
5.5
TOTALS
725,659
725,659
1 =�l
Withdrawal Well Svstem
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
FORMATION
GALLONS
CROATAN
FORMATION
GALLONS
TOTAL
GALLONS
AVERAGE
GPM
May
491,558
585,800
1,077,358
13.1
June
743,212
486,598
1,229,809
11.3
July
285,448
472,099
757,547
10.6
TOTALS
1,520,217
1,544,497
3,064,714
2

Operation Notes:
5/24/2023: Pump Stuck in well casing.
7/2/2023: Changed Filter

Nutrien - Tank Farm Remediation System Quarterly Monitoring
Date: 7 - o. (o - a 3
Time: 0 .3o _ File:12-07-02
Tech: ( ; H R ; S uRP t•! ) RECEIVED
System Gauge Pressures
SWW-1
NIA
SWW-7
N/A
CWW-1
NIA
CWW-7
NIA
SEP 06 2023
NC DEQ/DWR
Central Office
Ditch
12.91
Barge Slip
10.59
. 0
Water Level
Control Tank
! j_ 3 </
%=MSL
Sand Layer Peizometers Level Indicators
Well ID
TOC
Elevation
MSL'
TOC
Sic Wtr
Level
Level
Relative To
MSL Ft. Well ID
TOC
Elevation
MSL'
TOC
Sic Wtr
Level'
Level
Relative To
MSL Ft.
S z-1
10.47
3. 1 7
C z-1
10.51
IS-6
'"
S z-2
11.21
(0 • 1
. p
C z-2
10.25
/, v
S z-3
11.87
'} . -] %
z-3
11.43
13 .43216.
O 0
S z4
11.45
. O
CPW
10.67
1 �•
4 . GPS
S ,z-5
11.45
9. 10
3-0- 5
MWTF-1A `
14.35
. S
0 • So
Spz-6
11.23
10.
0 • 7 7Q
MWTF-1B `
14.36
S z-7
11.59
1
- I. L+
MWTF-1C'
14.44
1
. g
S z-8
11.57
G .7
4-9,5
MWTF-2A
14.05(.-47
S -9
11.66
3 •'70
MWTF-2B
14.02
.3
S z-10
12.16
.
MWTF-2C
9.82
'8,7(o
. (a
SPW
11.00
% 0
t0 . 6 0
MWTF-3A
12.21
3. 4
8 , i (p
MWTF-3B
12A8
r7-517
p1 a0
MWTF-3C
12.19
6 • 48