WI0700012_Monitoring (Report)_20231130

Alutrien-
CERTIFIED MAIL
November 30, 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
August 2023-October 2023
Injection Well Permit#W10700012
PCS Phosphate Company,Inc.'
Tank Farm Remedial Action System
Dear Mr. Butcher,
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, c) semi-annual lab analysis results of withdrawal wells.
The 3rd party certified lab is currently having issues with their method blanks for TDS analysis. In the results
section, yellow highlighted values are the TDS results that did not meet those requirements. Samples
highlighted in red were analyzed outside of the required hold time. Those locations are not permitted
monitoring wells,but part of our internal monitoring. The lab QC department reviewed analytical results and
concluded the reported results were acceptable with historical values in those sample locations.
Please do not hesitate to contact me at(252)617-5374 if you have any questions regarding this information.
Sincerely,
� 4
Britt rtis
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.Mill
1530 NC Hwy 306 South,Aurora,NC USA 27806 nutnen corn
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.

PCS PHOSPHATE-TANK FARM REMEDIAL ACTION PLAN
QUARTERLY OPERATIONAL AND MAINTENANCE REPORT FOR THE INJECTION AND
WITHDRAWAL WATER WELLS
August 2023-October 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 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:
TANK
DPW WATER TOTAL AVERAGE LEVEL
GALLONS GALLONS GPM FEET, MSL
August 189, 850 189, 850 4 . 3 6 .4
September 234 , 190 234, 190 5 . 2 6 . 3
October 238, 337 238, 337 5 . 3 5 . 5
TOTALS 662,377 662,377
Withdrawal Well System
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 TOTAL AVERAGE
GALLONS GALLONS GALLONS GPM
August 360, 589 477, 720 838 , 309 10 . 7
September 369, 917 822, 851 1, 192, 769 19 . 0
October 356, 810 428, 921 2, 816, 809 9 . 6
TOTALS 1, 087, 317 1, 729, 492
2

Operation Notes:
10/1/2023: Changed Micron Filter
3

PCS Phosphate Co., Inc. - Tank Tartu Remediation System Quarterly Monitoring
Date: - 3- 2D 2 3
Time: c�30 File:12-07-02
Tech: pc: TLB Rol--n-o L,V.IROI
Point NSL o MSL
System Gauge Pressures Ditch 12.91 "
SWW-1 N/A Barge Slip 10.59 /9
SWW-7 NIA Water Level
CWW-1 N/A Control Tank jkltq
CWW-7 N/A %=MSL
Sand Layer Peizometers Level Indicators
TOC TOC Level TOC TOC Level
Elevation Stc Wtr Relative To Elevation Stc Wtr Relative To
Well ID MSL' Level' MSL Ft. Well ID MSL' Level MSL Ft.
S z-1 10.47 5- 31 C z-1 10.51 . 2 23.2-61
S z-2 11.21 6• C z-2 10.25 13, E o
S z-3 11.87 7, tt 23 C z-3 11.12 3.3o - . i$
S z-4 11A5 5. / 3 CPW 9.65 1rj �D
S z-6 11.45 V. 30 5 VO MWTF-1A` 14.35 � �tps 8�
S z-6 11.23 �.20 -173 u MWTF-1B' 14.36 HAM-f��(' ,3 /
S z-7 11.59 n MWTF-IC' 14.44 -3.04
5 z-8 11.57 •/•�D ,g�] MWTF-2A 14.05 (�'3`� 5.70
S z-9 11.01 p
- D? MWTF-2B 14.02 1
r�2 .?U I - -
S O S z-10 12.16 Z / p W MTF-2C 14.08 b .5S J,J7'l
SPW 1 9.95 1 10,92- MWTF-3A 12.21 3. 50
MWTF-3B 12.18 95 13
MWTF-3C 12.19 12 qO I --�5•2
Revised 7/29/02 Riser length added to TOC elevation 1124/97 D:\Data\Forms\Well ForrriJank Farm Remed Wells.&

CWW-1 CWW-2 CWW-3 CWW-4 CWW-5 CWW-6 CWW-7
No Sample?
Sample Date 10/16/2023 10/24/2023 10/17/2023 10/17/2023 10/17/2023 10/17/2023 10/18/2023
Well Depth ft 55.00 52.15 53.00 53.00 53.17 53.00 53.00
c Well Diameter in 4.00 4.00 4.00 4.00 4.00 4.00 4.00
w
Pipe Elevation ft 10.6 10.23 9.95 10.73 10.74 9.92 9.95
U
a
a C Riser in 2.25 3 3.08 2.75 2.58 2.92 1.25
3 Screened Int.
Start ft 33.27 30.57 36.42 41.67 41.75 36.62 36.58
Screened Int.
ft 52.68 49.82 50.67 50.92 51.08 50.88 50.83
DePM to ft
Water
Ft Below MP ft 10.6 10.23 9.95 10.73 10.74 9.92 9.95
Vol Purged cont. cont. cont. cont. cont. cont. cont.
Purge Units
N
N
,-'a Field pH units 6.51 5.39 6.52 6.54 6.63 6.49 6.56
c
a
a
Specific Cond. uMho 4195 2580 7333 4320 2850 2546 1987
LL
Temp C 21 22.4 23.6 26.2 29.1 29.1 25.5
Odor none none none none none none none
Appearance clear clear light black light black clear clear clear
Acidified n/a n/o n/a n/a n/a n/a n/a
TDS mg/L 2800 1200 4100 2600 1900 1700 630
Lab pH units 6.46 5.49 6.4 6.49 6.51 6.47 6.5
TOC mg/L 9.34 10.63 5.41 7.36 7.26 8.57 5.96
Chloride mg/L 337 90 1330 423 171 55 44
.N
2' Sulfate mg/L 1173 584 740 749 644 582 92.7
M
c
Q
a Total P mg/L 15.9 297 30.75 24.2 8.8 14.8 23.6
�o
J
Manganese ug/L n/a n/a n/a n/a n/a n/a n/a
Fluoride mg/L 0.2 1.07 0.18 0.09 0.05 0.07 0.07
Lab Start Date 10/16/2023 10/24/2023 10/17/2023 10/17/2023 10/17/2023 10/17/2023
Lab End Date 10/27/2023 11/3/2023 10/27/2023 10/27/2023 10/27/2023 10/27/2023
`All QC requirments were not met,samples were analyzed outside of sample holding time(RED)and 3rd party laboratory method blank results
exceeded method constant weight criteria(yellow)

WLCT CIW-7 MWTF1-A MWTF1-B MWTF1-CR
No Sample?
Sample Date 11/8/2023 11/8/2023 11/8/2023 11/8/2023 11/8/2023
Well Depth ft Header 48.00 6.40 13.50 42.00
_o Well Diameter in n/a 4.00 2.00 2.00 2.00
f+
U
;U Pipe Elevation ft *15.13 - 14.35 14.36 14.44
'u
Riser in - - 3.86 3.86 3.95
3 Screened Int. Start ft n/a 31 3.4 10.6 38.7
Screened Int. End ft n/a 45.25 5.4 12.6 40.7
Depth to Water ft - - - 4.78 11.56
Ft Below MP ft - - - - -
Vol Purged - cont. cont. cont. cont. cont.
�+ Purge Units - - - - - -
.N
c Field pH units 7.05 6.52 7.06 5.85 6.95
Q
-o Specific Cond. uMhos 726 1384 1637 1205 859
v
`L Temp C 18.4 25.1 27.7 27.1 25.9
Odor - none none none none none
Appearance - clear clear light yellow clear clear
Acidified - n/a n/a n/a n/a n/a
TDS mg/L 440 630 590 730 510
Lab pH units 7.02 6.42 7.06 5.73 6.8
TOC mg/L 4.43 17.75 17.75 10.87 5.53
Chloride mg/L 35 44 11 38 37
Sulfate mg/L 12.3 92.7 61.2 313 37.5
c
*Total P mg/L 0.066 0.255 9.920 0.050 2.475
ro
J Manganese ug/L n/a n/a n/a n/a n/a
*Fluoride mg/L 0.48 0.52 0.54 0.17 0.2
Lab Start Date 10/16/2023 10/16/2023 10/16/2023 10/16/2023 10/16/2023
Lab End Date 10/27/2023 10/27/2023 10/27/2023 10/27/2023 10/27/2023
*15.13'@ 100%full
*All QC requirments were not met,samples were analyzed outside of sample holding time(RED)and 3rd party laboratory method blank
results exceeded method constant weight criteria(yellow)

SWW-1 SWW-2 SWW-3 SWW-4 SWW-5 SWW-6 SWW-7
No Sample?
Sample Date 10/16/2023 10/17/2023 10/17/2023 10/24/2023 10/17/2023 10/17/2023 10/18/2023
Well Depth ft 22.50 23.00 24.50 25.00 28.21 26.00 29.50
c Well Diameter in 4.00 4.00 4.00 4.00 4.00 4.00 4.00
Pipe Elevation ft 10.7 9.99 9.97 10.73 10.8 10.66 10.7
'u
N
a Riser in 1.52 3.42 3.17 3.42 2.96 2.58 3
3 Screened Int.
Start ft 18.3 18.8 20.17 20.5 24.83 22.25 25.17
Screened Int. ft 21.12 21.63 23 23.3 27.21 24.62 27.5
Depth to Water ft - - - - - - -
Ft Below MP ft 10.7 9.99 9.97 10.73 10.8 10.66 10.7
Vol Purged cont. cont. cont. cont. cont. cont. cont.
Purge Units -
N
.N
Fi Field pH units 6.79 7.13 2.61 5.77 7.55 6.16 6.07
c
a
v Specific Cond. uMhos 1317 1030 6149 2410 968 2579 2258
d
LL
Temp C 24.3 21.6 22.6 26 23.6 31.2 28.5
Odor - none none none none none none none
Appearance - light yellow clear clear clear clear clear clear
Acidified - n/a n/a n/a n/a n/a n/a n/o
TDS mg/L 780 690 8200 1800 540 1700 1800
Lab pH units 6.71 6.92 2.53 5.77 7.22 6.2 6.02
TOC mg/L 5.28 4.62 13.99 12.39 4.72 12.28 11.61
Chloride mg/L 90 109 76 38 88 32 47
N
A Sulfate mg/L 163 32.9 779 895 14.7 891 555
c
Total P mg/L 33.25 15.87 209.0 151.0 2.1 113.0 195.5
Manganese ug/L n/a n/a n/a n/a n/a n/a n/a
Fluoride mg/L 0.32 0.63 4.4 1 0.59 0.14 0.24
Lab Start Date 10/16/2023 10/17/2023 10/17/2023 10/24/2023 10/17/2023 10/17/2023
Lab End Date 10/27/2023 10/27/2023 10/27/2023 11/3/2023 10/27/2023 10/27/2023
'All QC requirments were not met,samples were analyzed outside of sample holding time(RED)and 3rd party laboratory method blank results
exceeded method constant weight criteria(yellow)

Brittany Curtis
From: Hannah McCormick <[e-mail]>
Sent: Wednesday, November 29, 2023 6:44 AM
To: Chandler Stroud;Ann Baynor
Cc: Brittany Curtis
Subject: Re: [EXTERNAL] RE: [EXT] QC note
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Good Morning Chandler!
I hope this email finds you well on this cold Wednesday morning.
So I have pulled the results sheet from that data set.
The qualifying note on the bench sheet is referring to the method blank associated with the analytical batch that the
particular sample was analyzed in.
When completing TDS analysis, a corresponding blank and standard must be ran to validate the method is being
performed accurately. During this particular analytical batch,the method blank fell outside of the parameters that are
specified in the method, resulting in the qualifying note.
I have looked through previous results for this sample and took the average for all of the samples I have archived results
for. Everything is in line with how it typically runs, so I would consider the data valid.
If you have any additional questions, please let me know. I am available by email or phone here at the office (252)756-
6208.
Thank you!
Ha*"%a4A1 MC45 rwti c lc.
Waypoint Analytical- Greenville
114 Oakmont Dr.
Greenville, NC 27858
[e-mail]
(o)252-756-6208
>>> Chandler Stroud <[e-mail]> 11/28/2023 3:30 PM >>>
Thank you both!
t