20080868 Ver 2_Monitoring Plan_20090129

PCS Phosphate Groundwater Monitoring Plan
Draft 1/29/09
PCS Phosphate proposes to monitor Castle Hayne Aquifer groundwater quality around
the perimeter of the mining and reclamation areas, utilizing a combination of existing
wells and newly drilled wells. PCS has an extensive network of wells in the Castle
Hayne between South Creek and Durham Creek, as shown in the attachment. Eight of
these wells are proposed to be utilized for sampling, and three new wells are proposed to
be drilled where there are gaps in coverage.
The eight existing wells proposed to be used are highlighted on the attachment, and
include: DW32 near the airstrip along the Pamlico River shoreline, DW314 between
Reclamation Area 1 (R-1) and Durham Creek, DW831 west of R-5, DW823 west of R-8,
Brantly Swamp east of R-7 and south of Whitehurst Creek, Mine Shift Change north of
Whitehurst Creek, and DW910 and DW922 on the NCPC Tract between the existing
mine and South Creek. The three new wells will be drilled between R-3 and Porter
Creek, west of R-4, and south of R-7.
A water sample will be collected quarterly from each of the designated wells and sent to
an outside certified laboratory to be analyzed for cadmium, arsenic, chromium and
fluoride. The data will be compiled annually and submitted to the Corps of Engineers
and the NC Division of Water Quality. As the mine progresses and new reclamation
areas are developed, a new well located at the outer perimeter of each reclamation area
will be designated to be added to the sampling network.

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R.H. PE TERSON 112,9109

PCS Phosphate proposed groundwater monitoring plan
Subject: PCS Phosphate proposed groundwater monitoring plan
From: [e-mail]
Date: Fri, 30 Jan 2009 16:15:27 -0500
To: "Walker, William T SAW" <[e-mail]>
CC: "Lamson, Brooke SAW" <[e-mail]>, John Dorney
<j [e-mail]>
Tom:
PCS proposes the attached groundwater monitoring plan to address the Corps '
01/27/09 information request, condition 12 of the 01/15/09 401 Water
Quality Certification issued by DENR-DWQ, and groundwater monitoring
comments provided to the Corps by PTRF on 07/07/08 .
(See attached file: PCS Phosphate Groundwater Monitoring Plan.doc)
The attached graphic, "Beaufort Cc Wells.pdf", illustrates the off site
Castle Hayne groundwater monitoring well network as requested by the Corps
during our conference call on 01/27/09.
(See attached file: Beaufort Cc Wells.pdf)
The attached graphic, "Plant Site Wells 01-29-09.pdf", illustrates the on
site Castle Hayne groundwater well network. The wells proposed for
monitoring in this groundwater monitoring plan are identifed by a yellow
highlighted box and also described in the plan text.
(See attached file: Plant Site Wells 1-29-09.pdf)
Please contact me if you have any questions or require additional
information.
Ross
PCS Phosphate Groundwater Monitoring Plan.doc Content-Type: application/msword
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Beaufort Co Wells.pdf Content-Type: application/pdf
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Plant Site Wells 1-29-09.pdf
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