20080868 Ver 2_Wetland Hydrology Monitoring - 2017 Update_20180820

Alutrien-
Feeding the Fulure-
August 17, 2018
Ms. Karen Higgins
401 and Buffer Permitting Unit Supervisor
NC DEQ— Division of Water Resources
512 N. Salisbury St, #942-E
Raleigh, NC 27604
Dear Ms. Higgins:
Federal Express
The NC Division of Water Resources issued to PCS Phosphate Company, Inc. 401 Certification No. 3771,
DWQ #2008-0868 version 2.0 on January 15, 2009, for our mine expansion in Beaufort County. Portions
of Conditions 9, 12 and 13 of the Certification require groundwater monitoring of the protected portion
of the Bonnerton Road Non-Riverine Wet Hardwood Forest in order to ensure that the existing hydrology
of this site is maintained.
Monitoring of the hydrology has occurred since 2015, and the first deep well in Bonnerton pumping water
from the Castle Hayne Aquifer was turned on in December 2016. Enclosed is a report titled "Wetland
Hydrology in the Bonnerton Road Non-Riverine Wet Hardwood Forest — 2017 Update, Beaufort County,
North Carolina" reporting on the monitoring results.
If you have any questions, please call me at [phone], or email at [e-mail].
Sincerely,
re
Furness
Y s
Senior Scientist
Enclosure
PC: Anthony Scarbraugh — DWR, Washington w/encl.
K. Alnandy w/Intro & Summary
23-01-004-29 w/encl.
S. Cooper —CZR w/o encl.
1530 NC Hwy 306 South, Aurora, NC USA 27806
t 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.

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WETLAND HYDROLOGY IN THE
BONNERTON ROAD NOWRIVERINE WET HARDWOOD FOREST - 2017 UPDATE
BEAUFORT COUNTY, NORTH CAROLINA
Prepared for:
PCS Phosphate Company, Inc.
Prepared by:
CZR Incorporated
August 2018

TABLE OF CONTENTS
1.0 Introduction............................................................................................................................................1
1.1 Area Description.................................................................................................................................1
2.0 Methodology...........................................................................................................................................1
2.1 Water Level.........................................................................................................................................1
2.2 Rainfall and Drought...........................................................................................................................
2
3.0 Results and Discussion............................................................................................................................
3
3.1 Soil Series and Soil Profiles.................................................................................................................
3
3.2 Rainfall and Drought in 2017, 2016, and 2015...................................................................................
3
3.3 Wetland Hydrology.............................................................................................................................4
4.0 Summary .................................................................................................................................................5
Cover Photo: view to northwest from vicinity of wells BHW 12/BHW13, 30 March 2018
Bonnerton NRWHF Wetland Hydrology ii PCS Phosphate Company, Inc.
2017 Update August 2018

LIST OF FIGURES
Figure 1
401 Water Quality Certification Conditions 9 and 13 Wetland Hydrology Monitoring..
F-1
Figure 2
Non-riverine Wet Hardwood Forest Areas (135A and 58A) avoided by Mod Alt L.........
F-2
Figure 3
Bonnerton NRWHF Hydrology Monitoring Wells............................................................
F-3
Figure 4
Bonnerton NRWHF Wells and Soil Series........................................................................
F-4
Figure 5
2017 Porter Creek and WETS -Aurora 6N Rainfall...........................................................
F-5
Figure 6
2016 Porter Creek and WETS -Aurora 6N Rainfall...........................................................
F-6
Figure 7
2015 Porter Creek and WETS -Aurora 6N Rainfall............................................................
F-7
LIST OF TABLES
Table 1 Monthly and annual rainfall for 2017, 2016, and 2015 recorded at the Porter Creek rain
gauge and at the PCS Aurora 6N station........................................................................ T-1
Table 2 Drought conditions for the south side of Pamlico River in the vicinity of South Creek for
theyears 2012-2017....................................................................................................... T-1
Table 3a Hydroperiods for monitoring wells in and near Bonnerton NRWHF areas and upper
Porter Creek during WETS normal and below normal rainfall in 2017 .......................... T-2
Table 3b Hydroperiods for monitoring wells in and near Bonnerton NRWHF areas and upper
Porter Creek independent of WETS thresholds in 2017 ................................................. T-3
Table 4a Summary of hydroperiods for monitoring wells in and near Bonnerton NRWHF areas and
upper Porter Creek during WETS normal or below normal rainfall from 2015-2017 .... T-4
Table 4b Summary of hydroperiods for monitoring wells in and near Bonnerton NRWHF areas and
upper Porter Creek independent of WETS thresholds from 2015- 2017 ........................ T-5
Bonnerton NRWHF Wetland Hydrology iii PCS Phosphate Company, Inc.
2017 Update August 2018

LIST OF APPENDICES
Appendix A Soil Profile Descriptions at Bonnerton NRWHF and Upper Porter Creek Monitoring Wells
Appendix B 2016 and 2015 Wetland Hydroperiods for Bonnerton NRWHF and Upper Porter Creek
Monitoring Wells
Appendix C Graphs of Hydrology of Bonnerton Level TROLLS and Turn -On Dates of Pumps in Mine
Perimeter Deep Wells
Bonnerton NRWHF Wetland Hydrology iv PCS Phosphate Company, Inc.
2017 Update August 2018

1.0 Introduction
Per Conditions 9 and 13 of the modified 401 Water Quality Certification issued in January 2009 for the
PCS Phosphate mine continuation near Aurora NC (DWQ#2008-0868, version 2.0), wetland hydrology of
the portions of the Bonnerton Road non-riverine wet hardwood forest (NRWHF) shown as "135A" and
"58A" on Figure 1 shall be monitored before and after the mine moves through the area between the
avoided NRWHF areas and within the permitted mine boundary (Figure 2). The data collected are to
ensure that the wetland hydrology of the two NRWHF areas avoided by the permitted mine boundary is
maintained after mine impacts are completed and/or the mined -through area has been reclaimed.
1.1 Area Description
The Bonnerton Road NRWHF is located on a peninsula between Durham Creek to the west and Porter
Creek to the east; both creeks flow north to the nearby Pamlico River (Figure 1). Surface water flow of
the peninsula into the two creeks is separated by the divide known as the Suffolk Scarp, a geomorphic
feature whose highest elevation in this vicinity is just to the west of the 135A NRWHF (Figure 1). Slope
of the terrain on the most eastern side of the scarp towards Porter Creek is `0.2 percent, while the slope
approaches 1 percent nearer to the eastern toe of the Suffolk Scarp. Similar to other outer coastal plain
interfluves in North Carolina, where the underlying Castle Hayne limestone is close to the surface, the
forested landscape of the peninsula is gently rolling with occasional small closed depressions and small
non -hydric areas of higher elevation.
2.0 Methodology
2.1 Water Level
To monitor the pre -mine hydrology of the monitored area, a total of 14 semi -continuous electronic Level
TROLL 500 data -logger water level monitoring wells, manufactured by In -Situ, were installed in June and
July 2015 at the locations shown in Figure 3 (BHW3-BHW14). In addition to the 14 wells installed in
2015, there are six additional well locations shown on Figure 3 used to monitor the wetland hydrology
adjacent to upper Porter Creek for a separate project. Two other types of monitoring wells have been
used at four of these locations (PCW1, PCW3, PCW4, and PCW6) since 2006 (Remote Data Systems
(RDS) WL20s and WL80s and RDS Ecotone 20s and Ecotone 80s] but Level TROLL 500s have been in place
at all six locations since 2011 (wells at PCW2 and PCW5 were added).
Each of the 14 Level TROLLs is housed inside a 2 -inch diameter PVC well screen (0.010 -inch slots)
installed to a depth of approximately 32 inches and backfilled with filter sand. The recorder is
suspended on a 43.75 -inch cable in the well screen to record water levels within at least -20 inches
below the ground surface and up to +20 inches above the surface. Among the 14 wells the range of
water levels which can be recorded below the surface ranges from -24.25 to -31.75 inches and the range
of surface water which can be recorded ranges from +18 to +26 inches. The units record the water level
every 1.5 hours (16 times per day). The six upper Porter Creek wells are also housed inside a 2 -inch
diameter PVC well screen with 0.010 -inch slots, but the Level TROLL cable is 60.25 inches long and
among these wells, the range for below ground water level is -29.75 to -33.25 inches, and the range of
Bonnerton NRWHF Wetland Hydrology 1 PCS Phosphate Company, Inc.
2017 Update August 2018

surface water is +32.75 to +36.5 inches. (The longer cable is used for the upper Porter Creek wells as
part of a different monitoring project methodology and protocol.) To prevent damage by bears, the
above -ground portions of all well screens were surrounded by a fence enclosure made of metal T -posts
and strands of barbed wire. All 20 monitoring wells were checked and downloaded once a month.
Most of the 14 wells are located in portions of the hardwood flat at slightly higher elevations than the
six Porter Creek wells; however, no elevations have been surveyed so perceived differences in elevation
are not quantified.
Wetland hydroperiods were calculated for each monitoring well during the growing season. A
hydroperiod is defined as consecutive days during the growing season that the water table is within 12
inches of the surface or the surface is inundated, and is expressed as a percentage of the growing
season. For this project, the growing season is defined by the Regional Supplement to the Corps of
Engineers Wetland Delineation Manual: Atlantic and Gulf Coastal Plain Region (Version 2.0) (USACE
ERDC 2010) to match the Natural Resources Conservation Services' INKS) WETS tables and is 282 days
long in non -leap years (28 February -6 December). For the purposes of this report, a hydroperiod for 6
percent or more of the growing season is considered a wetland hydroperiod.
2.2 Rainfall and Drought
Rainfall is collected and measured using a RDS tipping bucket style rain gauge. As rain falls it lands in the
funnel of the rain gauge. Water is directed down to the bottom of the funnel where it drips into two
carefully calibrated "buckets" balanced on a pivot. Once the bucket has reached its calibrated amount,
0.010 inch of rain, it tips down registering the event as the opposite bucket rises to begin collecting the
next calibrated amount of rain. Water is allowed to drain out of a hole on either side of the rain gauge
underneath each bucket. The Porter Creek RDS rain gauge was used for local rainfall data (Figure 3)
except during a data gap or malfunction when the Aurora Station 6N data was used (located
approximately 4.7 miles away). After 2013, another RDS rain gauge (located 3.3 miles away at DCUT19)
may also serve during data gaps.
Long-term rainfall collected at the NOAA station PCS Aurora 6N was used by the Natural Resources
Conservation Service (NRCS) to provide what is known as the WETS Aurora Station 6N rainfall data.
These data were downloaded by CZR Incorporated and used to build annual rainfall figures to determine
periods of normal rainfall. "Range of Normal' refers to the 30th and 70th percentile thresholds of the
probability of onsite rainfall amounts outside of the normal range (based on historical averages from
1971-2000). In December of 2016, the long-term historical averages were updated to include 1981-
2010.
Drought conditions are monitored nationally by several indexes. Periods of drought can affect the
hydrology of a site and should be taken into consideration when wetland hydrology is interpreted. As
suggested in the USACE 2010 Regional Supplement, the Palmer Drought Severity Index (PDSI) was used
to determine drought periods for the area. The PDSI is useful because it "takes into account not only
precipitation but also temperature, which affects evapotranspiration, and soil moisture conditions" (US
Army Corps of Engineers 2010). The PDSI is calculated monthly and is based on major climatic divisions
Bonnerton NRWHF Wetland Hydrology 2 PCS Phosphate Company, Inc.
2017 Update August 2018

within each state (US Army Corps of Engineers 2010). Although the index is not site-specific, for the
purposes of this report it provided sufficient information to make general statements about drought
conditions in the area. Drought conditions described by this index by month and year are for the NOAA
Central Coastal Plain region of North Carolina. The US Drought Monitor (htto://droughtmonitor unl edu)
provides a synthesis of multiple indices and impacts and reflects the consensus of federal and academic
scientists on regional conditions on a weekly basis (updated each Thursday). The area used for regional
drought conditions includes numerous watersheds of various sizes and may cover portions of more than
one county. The color of the archived drought maps in the Bonnerton vicinity of Beaufort County is used
to designate drought status for any period in any given year.
3.0 Results and Discussion
3.1 Soil Series and Soil Profiles
The soil survey for Beaufort County NC (Kirby 1995) and web soil survey data show the area of the
Bonnerton NRHWF as underlain mostly by Tomotley fine sandy loam and several other soil series which
are all considered hydric; two of the soil series are considered non -hydric (Altavista fine sandy loam and
Augusta fine sandy loam) (Figure 4). Since earlier well installation soil profiles were described by several
biologists at different times, all 20 well locations were re -visited and the soil profiles were re -described
using the NRCS hydric soil indicators (USDA 2010) as directed by the 2010 regional supplement
(Appendix A).
3.2 Rainfall and Drought in 2017, 2016, and 2015
Monthly rainfall recorded in 2017, 2016, and 2015 at the Porter Creek rain gauge and at the PCS Aurora
6N station is shown in Table 1.
In 2017, monthly rainfall totals for January, February, October, and November were below the WETS
30th percentile (Figure 5). April was the only month with total rainfall above the WETS normal range. A
strong coastal low pressure system produced heavy rainfall and flash flooding from 23 April to 25 April.
Based on the 30 -day rolling total, rainfall from 24 April through 24 May was considered above normal.
In 2016, monthly rainfall was greater in February, June, July, September and October when compared to
the WETS percentiles (Figure 6). Rainfall for March and mid to late August were below normal with the
remainder of the year within WETS normal range. Hurricane Matthew, a Category 1 storm, made
landfall in Cape Romain National Wildlife Refuge, SC on 8 October 2016. Above average rainfall spikes
began in the PCS area on 7 October, coincident with arrival of the outer rain bands of the hurricane in
North Carolina. There were several periods of above normal rainfall that were excluded when
hydroperiods were calculated for normal and below normal rainfall: 3 February through 5 March, 3 June
through S July, 7-30 July, 11-30 September, and 7 October through 7 November.
In 2015, monthly rainfall was greater in June, October, and late November through late December when
compared to the WETS percentiles (Figure 7). At the end of January and March, the 30 -day rolling total
was slightly above normal. Rainfall for the month of August was below normal and the rainfall for the
Bonnerton NRWHF Wetland Hydrology 3 PCS Phosphate Company, Inc.
2017 Update August 2018

remainder of the year fell within the WETS normal range. Periods of above normal rainfall included 3
June through 3 July, 2 October through 1 November, and 20 November through 20 December.
The US Drought Monitor (http://droughtmonitor.unl.edu) provides a synthesis of multiple indices and
reflects the consensus of federal and academic scientists on regional conditions on a weekly basis
(updated each Thursday). In 2017, five weeks were considered abnormally dry (DO) by the US Drought
Monitor; the remaining weeks had no drought status in the vicinity of the Bonnerton Road NRHWF
"135A" and "58A" project areas (Table 2; three years prior to 2015 are also shown). During 2016, three
weeks in April were assigned drought condition (DO — Abnormally Dry) or 6 percent of the entire year
and 7 percent of the 41 -week growing season (Table 3). In 2015, all 41 weeks of the growing season
were considered normal with no drought status for the Bonnerton vicinity.
3.3 Wetland Hydrology
Monitoring Year 2017
All BHW and PCW wells exhibited wetland hydroperiods, even when periods of above normal were
excluded (Tables 3a and 3b). Of the 14 BHW wells, eight wells had hydroperiods for >12.5-25.0 percent
and six wells had hydroperiods for >25.0-75.0 percent of the growing season during all rainfall
conditions. Similarly, all six PCW wells had hydroperiods for >12.5-25.0 percent.
When hydroperiods that occurred during above normal rainfall were removed (Figure 5), six wells
decreased from >25.0-75.0 percent to >12.5-25.0 percent of the growing season; all other wells
maintained hydroperiods for >12.5-25.0 percent of the growing season.
Monitoring Year 2016
The first full monitoring year for the 14 BHW wells was 2016. All BHW and PCW wells exhibited wetland
hydroperiods during the 2016 growing season (Tables 4a and 4b, Appendix B). Of the 14 BHW wells,
hydroperiods for eight wells were >12.5-25.0 percent and six wells were >25.0-75.0 percent of the
growing season. Similarly, all six PCW wells had hydroperiods for >12.5-25.0 percent.
When above normal rainfall was removed (Figure 6), only one well (PCW3) decreased from >12.5-25.0
percent to 26.0-12.5 percent of the growing season during normal and below normal rainfall conditions.
Monitoring Year 2015
The 14 BHW wells were installed at the end of June 2015 and beginning of July 2015; the six upper
Porter Creek wells collected data all year. All 14 semi -continuous BHW wells exhibited wetland
hydroperiods using all rainfall data between June and December and the six Porter Creek wells exhibited
wetland hydroperiods between February and December (Appendix B). Among the 14 wells in the higher
elevations of the hardwood flat, BHW6 had the longest hydroperiod of 23.8 percent of the growing
season while longest hydroperiods at the remaining wells were in the range of 26.0 - 12.5 percent of the
growing season (Table 4b). The six wells in upper Porter Creek are located in somewhat lower elevations
than some of the other 14 wells and, using all 2015 rainfall data, longest hydroperiods were >12.5-25.0
Bonnerton NRWHF Wetland Hydrology 4 PCS Phosphate Company, Inc.
2017 Update August 2018

percent of the growing season with PCW6 exhibiting the longest hydroperiod of 24.5 percent (Appendix
B).
When dates with above normal rainfall during 2015 (Figure 7) were removed and only normal and below
normal rainfall periods are used for evaluation, three BHW wells did not exhibit any wetland
hydroperiods between June and December (one of these four exhibited water within 12 inches of the
surface but for less than 6 percent of the growing season), nine had longest hydroperiods in the range of
2:6.0- 12.5 percent, and longest hydroperiod atone well was >12.5-25.0 percent (Table 4a). All six PCW
wells had wetland hydroperiods in the range of >12.5-25.0 percent of the growing season during normal
and below normal rainfall.
Mine Perimeter Deep Well Pumps and Near Surface Hydrology
At agency request, PCS provided CZR information about the locations and dates of operation (turn -ON
and turn -OFF dates) of pumps in deep wells around the Bonnerton Mod Alt L mine perimeter for
analysis of potential effects on adjacent wetland hydrology attributed to the pump activity. As of 31
December 2017, three deep well pumps were still on in the vicinity of BHW or PCW locations (deep wells
1108, 1109, and 1110). Two of the three deep wells/pumps in operation in the Bonnerton Tract were
started in late -December 2016. The third deep well pump (1108) was started on 1 February 2017; the
2016 memo reported it as being started in early January, but it was actually started nearly one month
later. As of the date of this report, not enough data have been collected for meaningful statistical
analysis. However, graphs of the water levels of the 14 adjacent wetland wells in the Bonnerton
NRWHF were examined before and after the pumps were turned on in late 2016 through December
2017. The graphs do not reveal any apparent change in water level in the last weeks of 2016 through
December 2017 other than response to rainfall events. These graphs are shown in Appendix C of this
report along with a figure of the locations of the deep wells relative to the Level TROLLs; the date the
deep well pumps were turned on is indicated by a symbol on the hydrographs. Additional analysis will
be done when more data are available.
4.0 Summary
During 2017, 2016, and 2015 monitoring years, all 20 ground water monitoring wells exhibited wetland
hydroperiods when all rainfall data are used to tabulate consecutive number of days of water levels
above -12.0 inches (relative to ground surface). In 2017, all BHW and PCW wells exhibited wetland
hydroperiods, even when above average rainfall was excluded. Of the 14 BHW wells, eight wells had
hydroperiods for >12.5-25.0 percent and six wells had hydroperiods for >25.0-75.0 percent of the
growing season. Similarly, all six PCW wells had hydroperiods for >12.5-25.0 percent. When above
average rainfall was removed, hydroperiods for six BHW wells decreased from >25.0-75.0 percent to
>12.5-25.0 percent of the growing season; all other wells maintained hydroperiods for >12.5-25.0
percent of the growing season.
The first full monitoring period for the BHW wells was 2016, and both the Bonnerton and the Porter
Creek wells exhibited wetland hydroperiods during all rainfall (above average rainfall periods not
Bonnerton NRWHF Wetland Hydrology 5 PCS Phosphate Company, Inc.
2017 Update August 2018

excluded): eight BHW wells had longest hydroperiods of >12.5-25.0 percent, six BHW wells had longest
hydroperiods of >25.0-75.0 percent, and all Porter Creek wells had longest hydroperiods of >12.5-25.0
percent. Hurricane Matthew made landfall on 8 October 2016 in SC as a category 1 hurricane and
contributed to above average rainfall conditions late in the 2016 growing season. Above average rainfall
in 2016 accounted for 41 percent of the 283 -day growing season. However, when above average rainfall
data were removed from calculations, all BHW and PCW wells still exhibited wetland hydroperiods in
2016. Eight BHW and five PCW wells exhibited longest hydroperiods of >12.5-25.0 percent, six BHW
wells were >25.0-75.0 percent, and one PCW well was 26.0-12.5 percent of the growing season in
normal and below normal rainfall conditions.
In 2015, a partial monitoring year for the BHW wells, using all rainfall data, 13 BHW wells had longest
hydroperiods of >6.0-12.5 percent and one well (BHW6) had >12.5-25.0 percent; all six Porter Creek
wells exhibited wetland hydroperiods of >12.5-25.0 percent. When above normal 2015 rainfall is
removed from the evaluation, four wells (BHW1, BHW2, BHW4, and BHW9) did not exhibit wetland
hydroperiods (2015 contains BHW data only from June—December). The remaining 11 BHW wells had
longest 2015 hydroperiods during normal or below normal rainfall as follows: one was <6.0 percent,
nine were 26.0-12.5 percent, and one was >12.5-25.0 percent. All the Porter Creek wells maintained
wetland hydroperiods of >12.5-25.0 percent of the growing season during normal and below normal
rainfall periods (2015 contains entire year for all PCW wells).
Bonnerton NRWHF Wetland Hydrology 6 PCS Phosphate Company, Inc.
2017 Update August 2018

Literature Cited
Kirby, Robert M. 1995. Soil Survey of Beaufort County, North Carolina. Natural Resources Conservation
Service, United States Department of Agriculture.
Soil Survey Staff. Undated. Natural Resources Conservation Service, United States Department of
Agriculture. Web Soil Survey. Available online at htto://websoilsurvey.nres.usda.gov/. Accessed
[09/10/2012).
US Army Corps of Engineers. 2010. Regional supplement to the Corps of Engineers wetland delineation
manual: Atlantic and Gulf coastal plain region. Version 2. J.S Wakeley, R.W. Lichvar, and C.V.
Noble, eds. ERDC/EL TR -10-20, Vicksburg, MS.
US Department of Agriculture, Natural Resources Conservation Service. 2010. Field Indicators of Hydric
Soils in the United States, Version 7.0. L.M. Vasilas, G.W. Hurt, and C.V Noble (eds.) USDA, NRCS,
in cooperation with the National Technical Committee for Hydric Soils.
Bonnerton NRWHF Wetland Hydrology 7 PCS Phosphate Company, Inc.
2017 Update August 2018

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APPENDIX A
Soil Profile Descriptions at Bonnerton NRWHF and Upper Porter
Creek Monitoring Wells

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m ao eo
Sin u�va�3
�o m m
iii
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»
»
ii
V
aa
O 0 0
0 0
0 0
0 o
O o O
o 0 0
%
f
0
i
M N4
V
0 0 0
0 0 0 0
0 0 0 0
0 0 0 0 0
0 0 0
0 0 0 0
0 0
0
6
,
V Q
h
3
m
m
m
m
CO
Bonnerton NRWHF Wetland Hydrology A-2 PCS Phosphate Company, Inc.
2017 Update August 2018

APPENDIX B
2016 and 2015 Wetland Hydroperiods for Bonnerton NRWHF
and Upper Porter Creek Monitoring Wells

q
E
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c
3
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a
Bonnerton NRWHF Wetland Hydrology B-1 PCS Phosphate Company, Inc.
2017 Update August 2018

E
Q
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z
Bonnerton NRWHF Wetland Hydrology B-2 PCS Phosphate Company, Inc.
2017 Update August 2018

APPENDIX C
November 2016 — December 2017 Hydrology Graphs and
Turn ON Dates of PCS Mine Perimeter Deep Wells
NOTE: water levels greater than —30 inches below the ground surface exceed the ability of
LevelTROLL monitor to record (range -28.75 to -33.25 inches). Periods of horizontal water level
shown on the hydrology graphs indicate the actual water level is deeper than that horizontal
value.
The turn ON date for the three active deep well pumps are indicated with symbols on the
hydrographs for the month the pump was activated (these three pumps in the vicinity of the
Bonnerton/Porter Creek wetland hydrology monitors were still ON at the time of this report).

�•`, '10J%`....µ �,., +..�r.:�qY'. y�,y ..gy� � Fa F� �
1, ati
o
" ow`itt£ e
(<Wt
Qp
RIMS
I /
i ow 1111�
pWt1119 11..41, 10
/ 11N11 BNW6 .I
T
RAI" GAUGE
t

Ba ."FNM,... Mltltlgy Gt KS PMpI¢leCmpeny,Irc.
All ePu. hqu1 A10
BHWt Water Level
BHW1 Water Laval
Nov-0ee 2015, Fee Phosphate
a
Jan -Fab 2017, PCS Phosphate
so
a
10
2.5
25
.10
2
pto
E
2
15 _�
a
ISS
0.5
05
a o
a o
OBHW1 • Poller R.inf.11 mIHOBeep Well
MBMWI aPoller Relnlell ♦11000eap W011 J11020eep Well
BHW1 Water Level
BHWt Water Level
Mar -Apr 2012, PCS Phosphate
May - Jun 2017, PCS Phosphate
A
3
3
10
2.6
1.
25
2
2
_
5`
15
3
3
a
OS
05
0
0
5.1.
eBHWt •POMrReinfell
mu
0BHW1 aPeNrRaidel
Ba ."FNM,... Mltltlgy Gt KS PMpI¢leCmpeny,Irc.
All ePu. hqu1 A10

BHWt Water Level
eore�me xavmr w.wb xry�aoav
xon oven.
2.5
z $
{
0.5
0
BHW7 Water Level
BMI Water Level
o BHW1 aPoxer Relnfell
I
w
3
2.5
z
{
I a
O's
0
25
z �
a
05
0
xs nnw.i. a�aw�"a1e

Bamnm MflVMF VAWN MyL.tlgy
tol>YpL.b
G•
[t6 %q.pNNfamp.M.1R.
IugW AIB
BHW2 Water Level
BHW2 Water Level
Nov,oc 2010. PCs Phwpheb
Jan -Fab 2012, PCs Phospheb
m
3
3
10
26
10
25
b
2�
2
f
m
i
1
i
1
os
os
0
5
0
OM
on.
BBHW2 •PoMrRalnid 01110 pnp Well
BSHW2 BpoNrRelMell a110a Deap Well 01108 Deep Well
BHW2 Water Level
BHW2 Water Level
Mm Apr 2012. PCs Phosphate
Met -Jun 2012, PCs Pho.phetc
3
3
10
5
A
25
a
2
o
g
`e'°
'e
Sg
15g
i
0
0
on.
BBHW! ePOOer Reinlell
ba.
G8HMBP.r.rR W.P
Bamnm MflVMF VAWN MyL.tlgy
tol>YpL.b
G•
[t6 %q.pNNfamp.M.1R.
IugW AIB

My wNRMFMab N� CG MSFIe�yMeCary�nl.1R.
]01> VpXe NqW AIB

8—rc XPMF MMN HMu' y Cd XS AmpNb CpvpM. Yc.
iO,l Up]ele IypW A,B
BHW3 Water Level
BHW3 Water Level
Nov-Dec 201 G. PCS PM1oepM1ele
Jen{.b 2011. PC$ PM1eepSele
b
A
3
3
25
26
b
0
_
2 _
_
€ .I
2
€
g
Ef_
A
i
,5€
T
4
j
T
1
05
05
It
0
0
o BHW3 PpoNrRPlMell a1108Deep Well 011WDeep Well
DBHW3 •Porter Rein4A X1110 Deep WeA
B14W3 Water Level
BHW3 Water Level
MPr- Fpr 2017, POS Phosphate
May -Jun 2017, PCS Phosphate
3
3
25
1.
25
c
2
_
1a
1
0.5
os
a
yy 55
a a a$ A R
i 2 ja g5p 5 0
45
0ei
LoBHW3 epoNer ReIMeA
a
I .8HW3 aN rR.,nl.fl
8—rc XPMF MMN HMu' y Cd XS AmpNb CpvpM. Yc.
iO,l Up]ele IypW A,B

b+maWn NMMF M6IYN MprtlyY Gl KS RgepNie ConpanY� Irc
AIIVWck RWusi A18

brvanm �BKNFYMYN MMMWY CA FCS Rn.N.I. Cm Oe em
Wa N ua M18
BHWa Water Level
BHW/ Water Level
Xo,Doc Nis. PCS Phosphate
Jen{ob 2017. PCS Phosphate
se3
3
35
25
a
E2
05
OS
0
aa $ T
�p.1.
OBXW<aPodarRalofalt A11051)eep Well 411000eaDwell
OBHWC ePoderRainrell •11100sop We11
BHWI Water Level
BHWa Water Level
Mer. Apr 2017. PCS Phosphate
S
May - Jun 2017. PCS PhosOsla,
S
R.5
1.
25
2_
e
uo
1.5
1.5 fi
m
�
0.5te
0.5
55 0m
5,5 0
a1.
GBHwa avcnerWmmr
Dm
OBHwa aPoster Wlnnn
brvanm �BKNFYMYN MMMWY CA FCS Rn.N.I. Cm Oe em
Wa N ua M18

r
BHW4 Wafer Level
e.MXIIM HHN11F VbWrd XyOMWY
AI] VpXa
o BHw4 ePaMrFelnfell
3
25 p
o
ro
Na
0.5 m
to
0 m
BHW4 Water Levu
C BHW4 aPDXar Reinlell
G
3
25
2
15 =_
1a
0.5
0
FfA %wrVNte Caryerry.lR.
]s9W %ala
BHW4 Water Level
Nov - Dec 2017. PC3 Phosphate
3
1.
25
2
Y
S
15�
it
.w
ta
O5
G
3
25
2
15 =_
1a
0.5
0
FfA %wrVNte Caryerry.lR.
]s9W %ala

— MRMF WNntl maMWy clo {Cfi P1urVnl. Co�N.ayIrc.
ppn eP<.0 Anw xle
BHWS Water Leval
BMS Water Level
Naw -Dae 2016, PCS Phaephele
Jan -Fab 2017. PCs Phosphad
S
3
2fi
25
2
2
2
Y
S
1.5
15_
1
I
ti
m
YS
L
0.5
0
05
0
0
C C e5 A A a S
a p
a C C n ry
P .S ry A S S
MBHWS aPoNrRelnleAn SI11100wp—M11
.BHWS ePaMrRelMell A110B0aep Well J110BOeep Wall
BHW5 Water Level
BHWS Water Level
Men Apr 201$ PCs Pho:phak
9
May Jun 2011, PCS Phoaph..
3
25
25
2
2
s�
15 =
—
I
�
m
0.5
05u
a r�. pp0pp
gg 0
hn.
GBHWS aPoller RelMell
bm
pBHWb aPaMr Relnlel
— MRMF WNntl maMWy clo {Cfi P1urVnl. Co�N.ayIrc.
ppn eP<.0 Anw xle

BHW5 Water Level
3
2.5
2 _ 4
1 a
Bs b
0
rt ReiMell
BHW5 Water Level
Nov- Oee 2017. PCS Phosphate
A 3
A
p 2.5
2 l0 2
.A
S t5v
-s0
05
0
•BHWE •PeNer RPIMaI
BHW5 Water Leval
Sept - Oct 2017. PCS PFnpaele
3
25
2
15�
0.5
0
eunNn XFMIFNYLLN MyigPoY 411 [CS pwpM1b Carp.M.1R.
A1) V�ea IugW A10

eemena, xRnxa vxwm Hp�aop.
12 DPene
oft
xs moela+l. m�mem.IR.
ADw m1e
BHWB Water Level
BHWB Water Level
Nw-0ee 2016, PCa PM1wpMia
Jen{eb 2017, PCB Phosphate
0
he
as
3
3
fD
25
to
25
2
2
2
�
�
x
15
F
py5
o
3
1
3
et
05OS
q
0
�.,zA i1 i a r
5 j 0
DM
I B8HW9 •PoMr ReIMeA 01fl00Dep Well
OBNK9 .Peer Reinlel
BHWB Water Level
BHWB Water Level
Mar. Apr 2017, PC$ Phosphate
MayJun 2017, PCS Phosphate
3
3
S
25
=
2
e
1.5
1a
0.6
0 5
a p0J
0
®BHKa •pOHer RelMaA
eBHWB •Poser Relnlel
eemena, xRnxa vxwm Hp�aop.
12 DPene
oft
xs moela+l. m�mem.IR.
ADw m1e

Wma n"RMF We "p Wy U] Ftg q�N
MIIV�eIeq'IR_
]mow Mle

Bawnm he., WatlpM NttlMyy G1B
MIi Vpb PCS PM1npMeCorrgM.'�
RyW AIB
BHW7 Water Level
BHW7 Water Level
Nov -Dee 2016. PCS Phosphate
Jen{eb 2017, PCS Phosphate
3
3
Ip
2.5
20
11
25
E
2
€
Y
Z
r
F
a
05
os
= vel S eS � .
B
[ e
DBHW ePpOer Relnlell A11NDeep Well J11MD¢pWella
bBHM •Porter Rafnfal, 011100eep Well
BHW7 Water Level
BHW7 Water Level
Mer. Apr 2017, PCS Phosphate
May -Jun 2017, PCS Phosphate
3
25
25
2 _
o
i
2 _
2
2
€
_
15�
S
m
C
05
55 gg 0
0
ba•
aBHWi •POner Relntell
Dm
aBHW! •PONr Relnlell
Bawnm he., WatlpM NttlMyy G1B
MIi Vpb PCS PM1npMeCorrgM.'�
RyW AIB

81 W Water Level
Jul - Rua 2017, PCS Pho,haia
F
g
m.,.ne. xnvmn wu.m xra�eoor
Mt] Yp]tle
ID
BHWI Water Level
BHW7 Water Level
Nov- Dec 2017. PCS PFaepiwN
.le
3
2.5
2
15 _�
,a
0.5
0
RS Pluen�'+I+�ePem.Ma'.
AqW AI0

Bam.nm".F N.WN'aebe, C.I. FfB MapNU Cgn.aq,lrc.
Allpoda. I.ywl AIa
BHW8 Water Level
BHW8 Water Level
NovAac 2016. PCS Phosphate
Jan -Fab P017, PCS Phosphate
3
a
10
25
11
25
2"
It
2
2
Y
2`pIna
S
oe
1.5 a
os
os
°
p
Data
P.x
oBHWB aP..,Remrel n110 o..Pwm
oaxwa apaMrRelm.o .noapas, Wall anou Deep wm
B1fW8 Water Level
BHW8 Water Level
Mer -Fpr 2017, PCS Phosphate
Me,. Jun 2017, PCB PhoepM1eb
10
3
3
5
25
1
10
2
_
c
as05
p.5
o
§ a
t a
6.n
on.
ABHW6 aP011er Relniell
OSHWS aP.MrRelnfell
Bam.nm".F N.WN'aebe, C.I. FfB MapNU Cgn.aq,lrc.
Allpoda. I.ywl AIa

3HW8 Water Level
Jul -Aug 2017, PCS PhoephaW
BHW8 Water Level
eapp Oct 2012. PCS Phosphate
0
Mnxilm a., YAON NYEitl;Y
]Ol]Lgele
BHW8 Water Level
Nov Dec 2017, PCS Phosphate
3
A
Q 2.5
E 2
Y i
� � v
p5
m p
U12
3
25
2 _
15 _
,a
0.5
0
FG4 Au4tiN CeiF+M. Fc.
<+qW A16

pees M_a., NI. ceopYM, Iz.
.1to'n. Ki Nne4 ". an.
BHW9 Water Level
BHW9 Water Level
Nov -Doc 2016, PCS Phospbele
Jan{ab 2017. POS Phosphate
oc
a
3
lo
5
1.
25
t
2
o
t
2
c 10
p
1.5
15_
3
32
1
m
y
0.5
0 5
OBMVrS mpaNer Reifllell a11080sep Well 411008ep Well
.B.. •POHee R—fiallu 1111100es Wall
BHW9 Water Level
BHW9 Water Level
Mer AP, 2017, PCS Phoephele
May - Jun 2017. PCS Phosphate
p3
se3
ic
$
M
1.
2.5
2
3
k
0.5
0 5
ao
e
f�
0
pne
mBHVR mPoMrRelMell
oro
eBHN9 •peMrRei�lfell
pees M_a., NI. ceopYM, Iz.
.1to'n. Ki Nne4 ". an.

SM9 Water Level
Jul Fug 2011. PCe Paosphale
I OBHM vPaMrRelnlall I
9
A
&IW9 Water Leval
foul -0c12017, PCS Ph-peete
a
25
25
2
2
1.5
1.5
i
1
I @
05
OS
0
p
a
25
2 ;
1.5 _
a
05
0
a PONrRmf.11
ex.xnu xxvmrvxaw gemlopv ue mewal. cim.m.l..
301)VWvly iC9 gquvl AiB

Bwenm NPWXF va.N M' a", GA FCS Pho 1. CaM
np..IR.
11 V,dhe r vaa l,e
BHW70 Water Level
BHW10 Water Level
N.v3010, FCS Ph..,hnle
Jen -Fab 3011, Fee Phosphate
A
an
3
25
I0
2.5
A%
j
_
I
2
Y
r
3_3
E
0.5
m
O S
0
a 0
o BHW10 NPoller Raln1el AIINDeep Well 411NDeep Well
mBHW10 •PONerR.if.n 01110 Cee,Well
BHW10 Water LevelBM10
Water Level
Men Apr 2017, POS Paosph.,
M., Jp 2017, PCS Pllospbak
3
In
2
25
t
2
'e
4
m
os
Bs
pp o
r 5 a S
p 0
a.n�
mBHW10 mP011er Relnfell
oBHWIOaP0d rRelnfell
Bwenm NPWXF va.N M' a", GA FCS Pho 1. CaM
np..IR.
11 V,dhe r vaa l,e

9anreanxNtxlf xemie IMmror
zat uoane
BHW10 Water Level
Nov -0a Ret T. PCS Phosp M1elo
3
25
2 4
1.5
4
I e
45
a a 0
DSHWIe pPoMrRelMell
VYA PMrplale Cmp eM. Irc.
Mww mte
BHW70 Water Leval
BHW10 Water Level
Jul-pug 2017, PCs Phomph.W
Sept. 00121117, PCs PawPaale
m
3
3
25
m
2.5
2
.10
.
13�
3
15_5
p
Fill,
05
os
I
0
0
5
gg
OBMW10 •PONer Reldell
OaHW10 ppoMrReinbll
9anreanxNtxlf xemie IMmror
zat uoane
BHW10 Water Level
Nov -0a Ret T. PCS Phosp M1elo
3
25
2 4
1.5
4
I e
45
a a 0
DSHWIe pPoMrRelMell
VYA PMrplale Cmp eM. Irc.
Mww mte

.n. xPvmFwn.rc'a", cn o.grrr. m.p.m.irc.
MI2 upon.upon.Pe5 msue..'.
B14W11 Water Level
BHWtt Water Level
Nov -Deo 2016, PCS Phosphate 2
Jm-Fab 2017, PCS Phosphate
3
25
25
X
2 _
2
on
5—
g(
15L
nsroD.s
.70
_
D.I.
D
a
a a
D.x
PorNr WIMeO •IItO D»pWl
mBHWll aPonerRetMell
BHW17 Water Level
BMII Water Level
Men Apr 2012, PC* Phosphate
May - Jun 2012, PCS Phosphate
2
25
25
2
2
_
2
c
e
4
D.sx
J.
os
ao
m
0
a D $
'a X 5 5D.b S s a S i i
55 0
mBHW11 aPeMr RelnbA
per.
oBM411aPener Mlnlall
.n. xPvmFwn.rc'a", cn o.grrr. m.p.m.irc.
MI2 upon.upon.Pe5 msue..'.

BHWfi Water Level
Jul - Rug 2017, PCS Phosphate
BHW11 Water Level
Sept - Oct 2017. PCs Phosphate
0
BHW11 Water Level
Nov -Doc 2017, PCS Phosphate
3
nBHW11 •POMrBeIMeA
Mvaam NRNNF'MLLiq WrthvY OU FCS RnWsY Covet, Im
AI] VpYY NpM .y1S

venerator -RMF vuum maMwr
.It uM..
oaa
Rrs Rh.wml. cornea, l..
waw mla
BHW12 Water Level
BHW12 Water Level
Rov.oec pole, POe Ph carded.
Jen -Feb 2017, PCS Phosphate
b
3
3
10
25
re
1.
25
o
2
_
2
'e
va
f
1.5
2
well data gap due to
1
bear activity
mra
,o
05
os
:
o
a
UBHW12 ePorter Rainfal ■III— Well
.SHW12 ePod.,Relnfell A11080Rep Well J1 Oeslr Well
BM12 Water Level
BM12 Water Level
Mm Apr 2017. PCS Phoephete
Mey-Jun 2017. POS Phosphate
3
25
1.
25
2
2
2
tc
3
�
a
�
05e
050
o
gg p
oxa
hm
oBHW12 •Poder Relnlel
®BHW12 5P.A., dal
venerator -RMF vuum maMwr
.It uM..
oaa
Rrs Rh.wml. cornea, l..
waw mla

B14W12 Water Level
Jul-RUP 2017, PCS Phosphate
BHW12 Water Level
Sept -Od 207. PCS Phosphate
.11 zem NRMF MtaN Mdccy
ala
3
2.5 to
2 o
,.5 ` p
i
a ;
0.5 m
0 1 er
BHW12 Water Level
Nov - Dec 2017, PCS Phosphate
425
3
25
2
1.5
,a
05
0
K3 Pho M.—eaa al0

Mmenm HPNHF VALLN XrygyY GID pne ge.pyle Lg. .
All Vele Nq.A'9
SHW13 Water Level
BM13 Water Leval
May-Doc 3016. PCS PFOspbato
3
Janiab 2017. PC$ PhospMG
3
m
25
25
o
m
-10
2
Y
3
4
L
:
4_
6
15
1
0 5L
0.5
o
a
a A
C B H W 33
aPorprRelpfoN a11080esp Wall 011000esp Well
.BHW13 aPOMrUnfallu H110Oee. Wall
BHW13 Water LevelBHW13
Water Level
Mer- Fpr 3017. PCS Phospbtle
0
MayJun 3011, PCS Phosphate
�
3
26
25
-Ic
3
2
1.6 g
i5cr
05
m
os
m
0
m
a .ai
aa
a 5 S A hpb� a a
ss
5 S
5 a b 5 S a a E
0
68HW19 PPOOer RelMell
a S
pBHW19 aFOMr ReIMaA
Mmenm HPNHF VALLN XrygyY GID pne ge.pyle Lg. .
All Vele Nq.A'9

m MM NRMFw Mre pol 3y on xsvm.prew m�m.m.iR.
3011 um. PagW.U10

NMFvhWM XpMpy LX Pfd hmyN
Am11VpX. a M9uXyA 1B
BM14 Water Level
BM14 Water Level
Nov -Deo 2010,PCS Phosphet.
Jen3.6 MT, PCS Phosphate
b3
he
B
R5
M
25
2
e
2
€
_
c
05
as
0
.70
0
oBHW14 . P..rR.mr.1141108Dee wen aIIMM. Well
eBHW14 .Ppuer R.mrn nnooeepwal
BM14 Water Level
BHW14 Water Level
Men Apr 2017, PCB Phoeph..
May -Jun 2017. PCS Phosphate
3
3
2.5
2.5
6
2 _
8
Y
c
—
Y
"a
s
m
as
m
0s
p ap a o
## a
G BHWi< aPONrRelnitl
oBHW14.P..IR.id.11
NMFvhWM XpMpy LX Pfd hmyN
Am11VpX. a M9uXyA 1B

r
N�F�M , Y
mn u�em