20080868 Ver 2_Emails_20090202

Groundwater well legend descriptions
Subject: Groundwater well legend descriptions
From: [e-mail]
Date: Mon, 2 Feb 2009 14:51:54 -0500
To: John Dorney <[e-mail]>
CC: "Walker, William T SAW" <[e-mail]>,
[e-mail], [e-mail], [e-mail]
John:
Per your request, please find the following description for each of the
well types identified in the legend of the Plant Site Wells 1-29-09.pdf
Sentinel Wells
Castle Hayne Aquifer Wells installed by Texasgulf when the mine was
first opened, used for monitoring only (water level and chlorides). Part
of the monitoring network for CU1003. These wells were originally
defined as sentinel wells due to their location relative to the mine.
Plant Test Wells
Castle Hayne Aquifer Wells installed by Texasgulf when the mine was
first opened, used for monitoring only (water level and chlorides).
Part of the monitoring network for CU1003. These wells were originally
defined as plant test wells due to their location relative to the
chemical plants.
WMS Wells
Castle Hayne Aquifer Wells installed by Texasgulf used for monitoring
only. Required for NPDES Permit WQ N00003255 water quality monitoring.
Utility Wells
Castle Hayne Aquifer Wells production wells used for public water supply
and manufacturing activities. Water level and chlorides are monitoried
for CU1003 and water quality for Potable Wells.
Deep Wells Castle Hayne Aquifer depressurization Wells.
Inactive Deep Wells Inactive Castle Hayne Aquifer depressurization
Wells.
Please contact me if you have questions about this information.
Thanks.
Ross
John Dorney
<john.dorney@ncma
il.net>
To
[e-mail]
01/30/2009 04:28 Cc
PM "Walker, William T SAW"
<William.T [e-mail].
mi1>
Subject
Re: PCS Phosphate proposed
groundwater monitoring plan
I of 3 2/2/2009 4:48 PM
Groundwater well legend descriptions
can you send a short explanation for what you mean by "Sentinel Wells",
"WMS wells", "Utility wells", etc? next week is fine. thankx
[e-mail] wrote:
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 Co 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
John Dorney
Wetland Program Development Unit
Parkview Building
2321 Crabtree Blvd.
Raleigh, NC 27604
(o) 919-733-9646
/E-mail correspondence to and from this address may be subject to the
2 of 3 2/2/2009 4:48 PM
Groundwater well legend descriptions
North Carolina Public Records Law and may be disclosed to third parties./
3 of 3 2/2/2009 4:48 PM