NCD980840409_20070328_Charles Macon Lagoon Drum_FRBCERCLA RA_Annual Summary Status Reports 1997 - 2007-OCR

• ·•'P.~A ~~"-~-~
NCDENR
•
North Carolina Department of Environment and Natural Resources
Dexter R Matthews, Director Division of Waste Management
Ms. Giezelle Bennett
Remedial Project Manager
March 28, 2007
Superfund Remedial Site Evaluation Branch
U. S. Environmental Protection Agency, Region 4
Sam ·Nunn -Atlanta Federal Center
61 Forsyth Street
Atlanta, GA 30303
RE: Annual Summary Status Report
June 1, 2005 to June I, 2006
Macon/Dockery NPL Site
Cordova, Richmond County, NC
Dear Ms. Bennett:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
The North Carolina Department of Environment and Natural Resources (NC DENR) Superfund Section has received and reviewed.the Annual Summary Status Report -June 1, 2005 to June 1, 2006 for the Macon/Dockery National Priority List (NPL) Site. The Superfund Section offers the attached comments.
The NC DENR Superfund Section appreciates the opportunity to comment on this document. If you have any questions or comments, please feel free to contact me at [phone].
Attachment
Sincerely,
ei-&!15~
Environmental Engineer
NC DENR Superfund Section .
1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone [phone] I FAX [phone] \ Internet http://wastenotnc.org
. An Equal Opportunity/ Affirmative Action Employer-Printed on Dual Purpose Recycled Paper
Ms. Giezelle Bennett
March 28, 2007
Page 1
• •
ANNUAL SUMMARY STATUS REPORT-JUNE 1, 2005 TO JUNE 1, 2006
MACON/DOCKERY NPL SITE
Section 2.2 Percent Operational
1. Please correct the value given for average percent operational for the Upper Macon
groundwater remediation system in Section 2.2.
Section 2.4 System Modifications
2. Please correct the last sentence of Section 2.4 to state "Beginning in 2006, monitoring
well sampling events will occur annually in the month of July."
Section 4.0 2006/2007 Schedule
3. Please correct the spelling of the word "weekly" in the third bullet item of Section 4.0.
-----T<'<igures-------------------------------
4. The figures were inadvertently omitted from the report. Please correct this oversight.
Table 2 Summary of Operational Percentages
5. Please correct the period average row heading to state "Period Avg for 6-1-05 to 6-1-06".
Additionally, please correct the values given for period average operational percentage.
Table 14 Summary of Mass VOC Removal Estimates
Macon Source Area
6. Please correclthe values given for Average Total VOC Concentration for the Macon
Source Area for the November 1, 2005 through January 31, 2006 and February 1, 2006
through April 30, 2006 reporting periods in Table 14. Consequently, please correct the
values given for Pounds of VOC Removed for Period and Cumulative VOCs Removed for
the Macon Source Area in Table 14.
• •
Ms. Giezelle Bennett
March 28, 2007
Page 2
Upper/Lower Macon System
7. Please correct the values given for Average Total VOC Concentration for the
Upper/Lower Macon System for the November I, 2005 through January 31, 2006 and
February I, 2006 through April 30, 2006 reporting periods in Table 14. Consequently,
please correct the values given for Pounds of VOC Removed for Period and Cumulative
VOCs Removed for the Upper/Lower Macon System in Table 14.
... • [l(C~[Jrut~
Chemistry and Engineering Solutions in the Environmental Industry
April 28, 2006
David B. Mattison, CHMM
Environmental Engineer
NCDENR -Superfund Section
40 I Oberlin Road, Suite 1 SO
Raleigh, North Carolina 27605
Re: Response to Comments
Macon Dockery NPL Site
Cordova, Richmond County, North Carolina
•
Annual Summary Status Report -June 1, 2004 through June I, 2005
Dear Mr. Mattison:
This letter is in response to the North Carolina Department of Environment and Natural
Resources (NCDENR's) comment letter dated November 21, 2005, regarding the above-mentioned
report. The NCDENR comments are in italics below with our response immediately following.
Comment 1:
Table] EjJluent Analytical Results -Lower Dockery
1. Please correct the April 5, 2004 entry for the Lower Dockery groundwater remediation
system ejJ/uent to state that groundwater remediation activities have been suspended and therefore.
no samples were collected or analyzed.
Response: A copy of revised Table 3 is attached to this letter.
The Macon Dockery Site Group appreciates the NCDENR's cooperation on this project. If
you have any questions or need additional information, please feel free to contact me at (704) 795-
1585.
Sine el ,
I R C ING, INC. ~----t even E. Irminger, P.E.
Senior Engineer
cc: Ms. Giezelle Bennett, USEPA Region IV
Mr. Ken Gulledge, Crown, Cork & Seal Co., Inc.
Ms. Gretchen Digby, Ingersoll-Rand Co.
lrminger Consulting, Inc. 7015 Erinbrook Drive, Concord, North Carolina 28025
[phone] voice, [phone] fax, [phone] cell [e-mail]
Chiaro-1,1-Dichloro-1.1-Dichloro-Cis/trans-1,2-
Sample Date fom, ethane ethenc Dichloroethenc
Location ("8/L) (u«ll ) (ug/L) ("8/L)
LO Effluent 2115/1996 <1.0 <1.0 <l.O <1.0
2/16/1996 <l.0 <1.0 <1.0 <1.0
2/2211996 <1.0 <1.0 <1.0 <1.0
2/28/1996 <1.0 <1.0 <1.0 <1.0
3/8/1996 <LO <1.0 <1.0 <1.0
4/3/1996 <1.0 <1.0 <1.0 <I 0
51311996 <1.0 <1.0 <1.0 <1.0
g/]/1996 <1.0 <1.0 <1.0 <J.0
9/4/1996 <1.0 <1.0 <1.0 <1.0
!0/1/1996 <1.0 <1.0 <1.0 <1.0
llnll996 <1.0 <1.0 <1.0 <1.0
121511996 <1.0 <1.0 <1.0 <1.0
1/6/1997 <1.0 <1.0 <1.0 <1.0
.Y12/1997 <1.0 <1.0 <1.0 <l.O
4/8/1997 <1.0 <l.0 <1.0 <l.O
5114/1997 <1.0 <1.0 <1.0 <LO
61611991 <1.0 <1.0 <1.0 <1.0
7/2/1997 <I 0 <LO <1.0 <1.0
!nl\997 <1.0 <1.0 <I 0 <1.0
9/511991 <1.0 <1.0 <1.0 <1.0
10/2/1997 <1.0 <1.0 <1.0 <1.0
11/13/1997 <IO <1.0 <1.0 <1.0
12/5/1997 <1.0 <1.0 <1.0 <1.0
]/9/1998 <1.0 <1.0 <LO <1.0
2/5/1998 <1.0 <l.0 <1.0 <1.0
3/5/1998 <1.0 17 3.2 <1.0
413/1998 <1.0 <1.0 <1.0 <1.0
5/7/1998 <I 0 <1.0 <I 0 <l.O
6/5/1998 <1.0 <l.O <1.0 <LO
7/9/1998 <1.0 <l.O <1.0 <\.O
8/7/1998 <1.0 <l.O <1.0 <1.0
9,'J0/1998 <1.0 <1.0 <1.0 <1.0
10/2/1998 <1.0 <1.0 <1.0 <1.0
11/4/1998 <1.0 <1.0 <LO <1.0
12/1/1998 <1.0 <1.0 <1.0 <l.O
1/11/1999 <1.0 <l.0 <1.0 <1.0
•2111/99 <1.0 <l.O <1.0 <1.0
3/5/1999 <1.0 <1.0 <1.0 <l.O
418/1999 <l.O <1.0 <l.O <J.0
5/12/1999 <l.O <1.0 <LO <J.0
6'10/1999 <1.0 <l.O <10 <l.0
7/8/1999 <l.O <l.O <1.0 <J.0
8/5/1999 <1.0 <I.0 <LO <LO
919/1999 <1.0 <1.0 <1.0 <LO
10/1411999 <1.0 <1.0 <1.0 <1.0
111211999 <1.0 2.5 <1.0 <LO
12/3/1999 <LO 2.8 <LO <1.0
RPS 3500 70
RPS: Remediation Performance St.ndard
Methylene
chloride
(~n.)
<2.0
<2.0
<2.0
<2.0
<2.0
<20
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<20
<2.0
<2.0
<2 0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<20
<.1.0
<.10
<2.0
<.1 0
<20
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<5.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
TABLE 3 (Pa~e 1 of2)
EFFLUENT Analytical Results
LOWER DOCKERY
Macon Dockery Site
Richmond County, North Carolina
l, 1, 1-Trichloro-Trichloro-,t!um, ethene Benzene Toluene
(uiz/J.) (rn,/L) (uWL) ("811)
<1.0 <1.0 <1.0 <LO
<1.0 <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 <1.0
<1.0 <LO <LO <1.0
<l.O <1.0 <LO <I 0
<1.0 <l.O <1.0 <I 0
<LO <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 <1.0
<l.O <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 H
<1.0 <1.0 <l.O <1.0
<1.0 <1.0 <l.O <1.0
<1.0 <1.0 <!.O <1.0
<1.0 <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 <IO
<1.0 <LO <LO <1.0
<1.0 <l.O <LO <1.0
<l.O <1.0 <LO <1.0
<1.0 <1.0 <l.0 <LO
<1.0 <1.0 <!.O <1.0
<1.0 <1.0 <1.0 <l.O
<1.0 <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 <LO
<1.0 <1.0 <1.0 <LO
5.5 <1.0 <1.0 <1.0
<l.O <1.0 <1.0 <1.0
<l.O <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 <1.0
<l.O <1.0 <1.0 <1.0
<1.0 <1.0 <l.O <1.0
<LO <1.0 <l.O <1.0
<1.0 <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 <1.0
<1.0 <1.0 <l.O <1.0
<1.0 <1.0 <1.0 <1.0
<1.0 <l.0 <1.0 <10
<1.0 <1.0 <LO <I 0
<1.0 <1.0 <LO <IO
<1.0 <1.0 <LO <1.0
<1.0 <1.0 <LO <LO
<1.0 <l.O <1.0 <1.0
<1.0 <l.O <1.0 <1.0
<1.0 <1.0 <1.0 <LO
<1.0 <LO <LO <l.O
<1.0 <1.0 <1.0 <1.0
1.2 <1.0 <1.0 <1.0
200 2.8 1000
Total
Xylenes
(=IL)
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3,0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3,0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
400
Suspended
Chrmiium Barium Manganese Zinc Cadmiwn Soli&i
("8/L) ("811) ("&'I,) ("on) (ug.lI...) (moll)
<10 <50 <).0 <20 <0.30 <5.0
<10 <50 <5 0 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 5
<10 <50 <5.0 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 <5 0
<10 <50 <5.0 <20 <0.30 <5.0 • <10 <50 <5.0 <20 <0.30 <5.0
<10 <50 14 <20 <0.30 <5.0
<10 <50 13 <20 0.56 <5.0
<10 <50 II <20 <0.30 <5.0
<IO <50 <5 0 <20 <0.30 <5.0
<IO <50 35 <20 <0.30 19
<IO <50 6 <20 <0.30 <5.0
<10 70 <5.0 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 <5.0
<IO <50 <5.0 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 <5.0
<10 <50 <5 0 <20 <0.30 <5.0
<10 <50 <5 0 <20 <0.30 <5 0
<IO <50 <5.0 <20 <0.30 <5.0
<IO <50 <5.0 <20 <I <5.0
<10 <50 160 <20 <0.30 <5.0
<10 <50 34 <20 <0.30 <5.0
<IO <50 250 <20 <O 30 58
<IO <200 85 <20 <0.30 <5.0
<10 <200 39 <20 <0.30 <5.0
<10 <50 17 <20 <0.30 <5.0
<10 <50 6.3 <20 <0.30 <5.0 • <10 <50 <5.0 <20 <0.30 <5.0
<IO <50 <5.0 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 <5.0
<10 17 140 <20 <0.30 <5.0
<10 <50 10 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 <5.0
<IO <50 5.2 <20 <O 30 <5.0
<10 <50 15 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 <5.0
<10 <50 <5.0 <20 52 9.5
<IO <50 <5.0 <20 <0.30 <5.0
<10 <50 <5.0 <20 <0.30 <5.0
<10 <50 5.0 <20 <0.30 <5.0
<10 72 520 31 <0.30 <5.0
<IO 93 470 38 <0.30 <5.0
<10 <50 II <20 <JJ 30 <5.0
<10 <50 I 10 <20 <0.30 <5.0
50 1000 50 5000 5
Chloro-1,1-Dichloro-1,1-Dichloro-Cisltrans-1,2-
Sample Date form e<l,ane cthene Dichloroethcne
Location '""') (ug/L) '"'"-) (ug/L)
LO Etlluent 2125/2000 <1.0 6.2 <1.0 <1.0
31912000 <1.0 <1.0 <1.0 <1.0
417/2000 .. System Do= Not
5/9/2000 <1.0 <1.0 <1.0 <l.0
6/9/2000 <1.0 <1.0 <1.0 <1.0
7/7/2000 <1.0 <LO <1.0 <l.0
8/3/2000 <1.0 <LO <1.0 <1.0
9/25/2000 <1.0 <l.0 <1.0 <1.0
10/12/2000 <1.0 <l.O <1.0 <1.0
1118/2001 .. System Doon Not
4/24/2001 <J.0 I <LO I <1.0 I <1.0 I 5/1 InOOl <1.0 <\.O <1.0 <1.0
7/1112001 .. System Do= Not
10/18/2001 <1.0 <1.0 <LO <1.0
J/16/2002 System Down Not
7/31/2002 System Do= Not
I 0/30/2002 <1.0 <1.0 <1.0 <l.O
1/28/2003 System Do= Not
3/14/2003 <1.0 <1.0 <1.0 <l.O
413/2003 <1.0 <1 0 <1.0 <l.O
7/10/2003 <1.0 <1.0 <1.0 <J.O
\0/30/2003 <1.0 <1.0 <1.0 <1.0
1/13/2004 <1.0 <1.0 <1.0 <2.0
415/2004 System Swpended Not
&'2812004 System Su,p<nded Not
1/27/2005 System Swpc:nded Not
5/4/2005 System Swpended Not
8/25/2005 System Suspended Not
10/30/2005 System Swpended Not
RPS. 3500 7 70
R r::::: Remediation Performance Standard
Methylene
chloride
c~n-J
<20
<20
Sampled
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Sampled
<2 0 I <20
Sampled
<20
Sampled
Sampled
<2.0
Sampled
<2.0
<2.0
<1.0
<1.0
<5.0
Sampled
Sampled
Sampled
Sampled
Sampled
Sampled
5
TABLE 3 (Page 2 of 2)
EFFLUENT Analytical Results
LOWER DOCKERY
Macon Dockery Site
Richmond County North Carolina
1, 1, 1-Trichloro-Trichloro...
"""'" ethene Benzene Toluene
(=O) (w,/1) (uglL) (,g/L)
2.6 <LO <1.0 <1.0
<l.0 <LO <1.0 <1.0 •• ••• System
<LO <1.0 <1.0 <1.0
<l.O <1.0 <1.0 <1 0
<l.D <1.0 <LO <1.0
<1.0 <1.0 <LO <1.0
<1.0 <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 <1.0 .. ... System
<l.O <1.0 I <1.0 I <l.O
<l.O <1.0 <l.O <1.0 •• ••• System
<1.0 <1.0 <1.0 <1.0
System
Sy,tem
<1.0 <1.0 <LO <1.0
System
<1.0 <1.0 <1.0 <LO
<1.0 <1.0 <1.0 <l.0
<1.0 <1.0 <1.0 <1.0
<1.0 <1.0 <l.O <1.0
<1.0 <1.0 <l.O <1.0
System
System
System
System
System
System
200 2.8 1000
>
Total Suspended
Xylenes Chrcmiwn Barium Mangan= Zinc Cadmium Solids
(=fl.) (u,z/J ) (,g!L) (,g/L) (lli211) (,g!L) (mglL)
<3.0 <10 <50 320 <20 <0.30 <5.0
<3.0 <10 <50 53 <20 <U.30 <5.0
Do= Not Sampled •••
<3.0 <IO <50 180 <20 <0.30 <5.0
<3.0 <10 <50 <5.0 <20 <0.30 <5.0
<3.0 <IO <50 100 <20 <0.30 <5.0 • <3.0 <10 <50 <5 0 <20 <0.30 <5.0
<3.0 <10 <50 <5.0 97 <0.30 <5.0
<3.0 <10 <50 <5.0 97 <0.30 <5.0
Do= Not Sampled ...
I <3.0 I <10 I <50 I <5.0 I <20 I <0.30 I <5.0
<3.0 <10 <50 <5.0 <20 <0.30 <5.0
Down Not Sampled ...
<3.0 <IO <50 <5.0 <20 <OJO <5.0
Down Not Sampled
Do= Not Sampled
<3.0 <10 <50 58 <20 <0.30 <5.0
Do= Not Sampled
<2.0 <10 <50 <5.0 <20 <0.30 <5.0
<3.0 <10 <50 <5.0 <20 <0.30 <5 0
<3.0 <10 <50 <5.0 <20 <0.30 <5.0
<3.0 <10 <50 <5.0 <20 <0.30 <5.0
<2.0 <10 <50 <5.0 <20 <0.30 10
Suspende, Not Sampled
s"'""""" Not Sampled
Suspendei Not Sampled
Suspende, Not 8,mpled
Suspende, Not Sampled
Suspende, Not Sampled • 400 50 1000 50 5000 5
.4.'"f-.JI.,~ ~-· -~,. .
• •
MCDEMR
· North Carolina Department of Environment and Natural Resources
Dexter R. Matthews, Director Division of Waste Management Michael F. Easley, Governor
William G. Ross Jr., Secretary
November 21, 2005
Ms. Giezelle Bennett
Remedial Project Manager
Superfimd Remedial Site Evaluation Branch
U. S. Environmental Protection Agency, Region 4
Sam Nunn -Atlanta Federal Center
61 Forsyth Street
Atlanta, GA 30303
RE: Annual Summary Status Report
June 1, 2004 through June 1, 2005
Macon/Dockery NPL Site
Cordova, Richmond County, NC
Dear Ms. Bennett:
The North Carolina Department of Environment and Natural Resources (NC DENR) Superfund
Section has received and reviewed the Annual Summary Status Report -June I, 2004 through
June I, 2005 for the Macon/Dockery National Priority List (NPL) Site. The Superfimd Section
offers the attached comments.
The NC DENR Superfund Section appreciates the opportunity to comment on this document. If
you have any questions or comments, please feel free to contact me at [phone].
Attachment
Sincerely,
/)ewid. 8. fYlp Tl.A.'.$~ Id
David B. Mattison ff-
Environmental Engineer
NC DENR Superfund Section
1646 Mail Service Center, Raleigh, North Carolina 27699-1646
Phone [phone] \ FAX 919-715,3605 \ Internet http://wastenotnc.org
An Equal Opportunity/ Affin:native Action Employer-Printed on Dual Purpose Recycled Paper
,,
Ms. Giezelle Bennett
November 21, 2005
Page I
• •
Annual Summary Status Report -June 1, 2004 through June 1, 2005
MACON/DOCKERY NPL SITE
Table 3 Effluent Analytical Results -Lower Dockery
1. Please correct the April 5, 2004 entry for the Lower Dockery groundwater remediation
system effluent to state that groundwater remediation activities have been suspended and
therefore, no samples were collected or analyzed.
•
July 19, 2004
David B. Mattison, CHMM
Environmental Engineer
NCDENR -Superfund Section
40 I Oberlin Road, Suite 150
Raleigh, North Carolina 27605
Re: Response to Comments
Macon Dockery NPL Site
•
SUPERFUND SECT/ON
Annual Summary Status Report -June 1, 2003 through June I, 2004
Dear Mr. Mattison:
This letter is in response to the NCDENR's comments regarding the above-
mentioned report dated July 1, 2004. Listed below arc the comments and a response to
each.
I. Please correct the April 5, 2004 entry.for the Lower Dockery groundwater
remediation system effluent to state that groundwater remediation activities have
been suspended and there.fore, no samples were collected or analyzed.
The table has been revised to reflect the aforementioned correction. Please find a
revised copy attached.
2. Please correct Table 4 to include the date "January 13, 2004 "for the last entry
of groundwater level data.for monitoring wells MW-15, MW-15A, MW-18, MW-
20, MW-25, UD-1, UD-2, UD-3, UD-4, UD-5. UD-6, UD-7, and UD-8.
The table has been revised to reflect the aforementioned corrections. Please find a
revised copy attached.
434 Copperfield Blvd. N.E., Suite B • Concord, North Carolina 28025 • Tel: [phone] • Fax: [phone]
www.oppliedearth.com
• Mr. David Mattison
July 19, 2004
Page 2
The Macon Dockery Site Group appreciated the NCDENR's cooperation with this
project. If you have any questions or need additional information, please feel free to
contact me at [phone].
Sincerely,
APPLIED £ART SCIENCES, INC.
~ 1lm:'s. G
Project Manager
Cc: Ms. Giezelle Bennett, USEP A Region IV
JSG
Mr. Ken Gulledge, Crown, Cork & Seal Co., Inc.
Ms. Gretchen Digby, Ingersoll-Rand Co.
Attachments
NA -Not Analyzed
ug/l -micrograms per liter
DUP -Duplicate
l.D Effluent 5112/1999 <l.O <1.0 <1.0 <1.0
6110/1999 <l.O <1.0 <1.0 <l.O
71811999 <1.0 <1.0 <1.0 <!.O
815/1999 <1.0 <1.0 <1.0 <1.0
919/1999 <l.O <1.0 <1.0 <!.O
1011411999 <LO <1.0 <1.0 <!.O
11/2/1999 <l.O ,., <1.0 <1.0
1213/1999 <1.0 2.8 <1.0 <!.O
2125/2000 <1.0 ,2 <1.0 <!.O
3/912000 <1.0 <!.O <1.0 <!.O
41712000
5/9/2000 <1.0 <1.0 <LO <1.0
6!912000 <1.0 <1.0 <1.0 <1.0
717/2000 <1.0 <!.O <1.0 <!.O
81312000 <l.O <1.0 <1.0 <1.0
9/25/2000 <1.0 <1.0 <1.0 <1.0
1011212000 <1.0 <1.0 <1.0 <1.0
1/\812001
412412001 <1.0 <1.0 <1,0 <1.0
5/11/2001 <1.0 <l.O <1.0 <1.0
7/11/2001
JOIIS/2001 <1.0 <1.0 <1.0 <1.0
1/1612002
7131/2002
1013012002 <1.0 <1.0 <1.0 <1.0
112812003
3/1412003 <1.0 <1.0 <1.0 <1.0
413/2003 <1.0 <1.0 <1.0 <1.0
7/1012003 <l.O <1.0 <l.O <1.0
]Ql3Q_l2QQJ <1.0 <1.0 <l.O <1.0
1/1312004 <1.0 <1.0 <1.0 <2.0
415r.!004· Remediation System
Rcmc<Jiation Pcrfonnance Standar<J 3500 70
TABLE 3
Influent and Effluent Analytical Results
Lower Dockery
Macon/Dockery Site
Richmond County, North Carolina
<2.0 <1.0 <1.0 <1.0 <1.0
<2.0 <1.0 <l.O <1.0 <l.O
<2.0 <1.0 <1.0 <LO <l.O
<2.0 <1.0 <1.0 <1.0 <1.0
<2.0 <1.0 <1.0 <I 0 <l.O
<2.0 <1.0 <l.O <J.O <1.0
<2.0 <1.0 <1.0 <1.0 <1.0
<2.0 u <1.0 <1.0 <1.0
<2.0 2., <1.0 <LO <l.O
<2.0 <1.0 <1.0 <1.0 <1.0
System Down Nol
<2.0 <1.0 <1.0 <LO <1.0
<2.0 <1.0 <1.0 <LO <1.0
<2.0 <1.0 <1.0 <LO <l.O
<2.0 <1.0 <1.0 <1.0 <1.0
<2.0 <1.0 <1.0 <1.0 <l.O
<2.0 <l.O <1.0 <1.0 <1.0
System Down Not
<2.0 <1.0 <1.0 <LO <l.O
<2.0 <1,0 <1.0 <1.0 <l.O
System Down Not
<2.0 <1.0 <1.0 <LO <1.0
Sys1cm Do\\□ No,
System Down Nm
<2.0 <l.O <1.0 <LO <l.O
System Down Not
<2.0 <1.0 <1.0 <LO <1.0
<2.0 <1.0 <l.O <LO <l.O
<l.O <l.O <l.O <1.0 <l.O
<l.O <1.0 <l.O <1.0 <!.O
<S.O <1.0 <1.0 <1.0 <1.0
Suspended No
200 2.8 1000
•tower Doc Ir.cry Groundwater Remediation System Suspended on 3/19104. Samples not collected or analyzed.
fo~ ,, • <3.0 <10 <50 <5.0 <20 52 9.5
<J.O <10 <50 <5.0 <lU <0.30 <5.0
<3.0 <10 <SO <5.0 <20 <0.30 <5.0
<3.0 <10 <50 5.0 <20 <0.30 <5.0
<3.0 <10 72 520 JI <0.30 <5.0
<3.0 <10 93 470 18 <0.30 <5.0
<3.0 <10 <50 II <20 <0.30 <5.0
<3.0 <10 <50 110 <20 <0.30 <5.0
<3.0 <10 <SO 320 <20 <0.30 <5.0
<3.0 <10 <50 SJ <20 <0.30 <5.0
Sampled
<3.0 <10 <50 180 <20 <0.30 <5.0
<3.0 <10 <50 <5.0 <20 <0.30 <5.0
<3.0 <10 <SO 100 <20 <0.30 <5.0
<3.0 <10 <50 <5.0 <20 <0.30 <S.0
<J.O <10 <50 <5.0 97 <0.30 <5.0
<3.0 <10 <50 <5.0 97 <0.JO <5.0
Sampled
<3.0 <10 <50 <5.0 <20 <0.30 <5.0
<3.0 <10 <50 <5.0 <20 <0.30 <5.0
Sampled
<'3.0 <10 <51) <5.0 <20 <0.30 <5.0
Sampled
Sample.I
<3.0 <10 <50 58 <20 <0.30 <5.0
Sampled • <2.0 <10 <50 <5.0 <20 <0.30 <5.0
<3.0 <10 <50 <S.O <20 <0.30 <5.0
<3.0 <10 <50 <5.0 <20 <0.JO <5.0
<3.0 <10 <SO <S.O <20 <0.30 <5.0
<2.0 <10 <.50 <5.0 <20 <0.30 10
Samples Collected
400 50 1000 50 5000
•
\\.'ell
Number Date
Upper Dockery
MWJ5° 2/12/1996
2/14/1996
2/1 S/1996
2/23/1996
2128/1996
512/1996
615/1996
7/111996
7/]l/!996
11/8/1996
2/5/1997
5/12/1997
815/1 997
11/12/!997
2/4/1998
S/5/1998
8/5/1998
! ]/J/!998
2/10/1999
5/12/1999
815/1999
11/21 J 999
2116/2000
5/8/2000
81312000
1/J 812001
7/11/2001
1/16/2002
7/31/2002
1/2812003
7/!012003
1/1312004
~\\' !SA 2/12/1996
51211996
6/5/1996
7/1/1996
7/31/1996
I 118/1996
215/1997
5/12/1997
815/1997
11/12/1997
2/4/1998
5/511998
8/5/1998
11/3/1998
2/10/1999
5/12/l 999
815/1999
I !/2/1999
2/!612000
518/2000
813/2000
1/1812001
7111/2001
111612002
7/30/2002
1/28/2003
7/10/2003
1/13/2004
Table 4
Groundwater Level Data
Macon/Om;kery Site
Richmond County, North Carolina
Page 1 ol 29
Surnyed Depth to
Casing Groundwater
E]e\'alion (ft) (ft)
257.!0 36.47
36.96
37.43
38.80
37.07
38.08
37.04
38.76
40.25
38.56
37.45
37.07
38.66
42.23
33.45
33.55
40.74
44.12
4).16
44,94
45.S7
46.12
40.91
40.78
42.85
43.28
43.11
46.56
44.86
38.18
33.72
42.20
257.29 34.77
36.02
35.96
36.89
38.20
36.16
35.53
35.33
36.88
40.04
31.9!
31.97
38.55
4 !.61
40.53
42.32
43.03
43.15
38.30
38.63
40.85
41.05
41.00
44.70
43.22
36.19
33.66
42.24
•
Corrected
Groundwater
•:11m1tlon (ft)
220.63
220.14
2!9.67
218.30
220.03
219.02
220.06
218.34
216.85
218.54
219.65
220.03
218.44
214.87
223.65
223.55
216.36
212.98
213.94
212.16
211.53
210.98
216.19
216.32
214.25
213.82
213.99
210.54
212.24
218.92
223.38
214.90
222.52
221.27
221.33
220.40
219.09
22 l.l 3
221.76
221.96
220.41
217.25
225.38
225.32
218.74
215.68
216.76
214.97
214.26
214.14
218.99
218.66
216.44
216.24
216.29
212.59
214.07
221.10
223.63
215.05
•
Well
~umber Date
Upper Dockery
MW 18 2/12/1996
2/14/1996
2/15/1996
S/2/1996
615/1996
7/1/1996
7131/1996
11/8/1996
2/5/1997
5/12/1997
8/5/1997
I J/12/1997
2/4/1998
515/1998
8/5/1998
11/3/1998
2/1011999
5/12/1999
8/5/1999
11/2/1999
2116/2000
5/8/2000
8/3/2000
1/18/2001
7/! 1/2001
1/16/2002
7/3012002
1/2812003
7/10/2003
1/13/2004
MW20 2/12/1996
2114/1996
2/15/1996
5/2/1996
6/51199(,
7/1/1996
7/31/1996
11/8/1996
2/5/1997
5/1211997
8/5/1997
11/12/1997
2/4/1998
5/5/1998
8/5/1998
11/3/1998
2110/1999
5/12/1999
8/5/1999
11/2/19()9
2/16/2000
5/812000
8/J/2000
l/!8/2001
7/l 112001
1/16/2002
7/30/2002
1/2812003
7/1012003
1/1312004
Table 4
Groundwater Level Data
Macon/Dockery Site
Richmond County, North Carolina
Page 2 ol 29
Surveyed Depth to
Casing Groundwater
Elc\·ation (fl) (fl)
242.54 30.99
32.80
33,62
34.40
32.30
34.02
36.50
37.96
JS.13
34.03
33.90
37.84
30.26
36.90
42.56
46.49
45.18
46.27
43.52
45.67
37.65
37.72
40.21
37.26
39.40
40.73
38.68
32.55
24.95
37.42
265.15 24.34
25.34
25.65
22.47
27.25
27.80
2!L78
20.12
25.96
24.95
24.15
26.35
16.95
19.32
27.79
26.43
23.68
27.23
28.00
23.68
20.17
24.32
28.40
30.29
28.46
33.49
33.04
23.53
19.86
24.14
•
Corrected
Groundv.atcr
Elerntion (fl)
211.SS
209.74
208.92
208.14
210.24
208.52
206.04
204.58
207.41
208.51
208.64
204.70
212.28
205.64
199.98
196.05
197.36
!96.27
199,02
196.87
204.89
204.82
202.33
205.28
203.14
201.81
203.86
209.99
217.59
205.12
240,81
239.81
239.50
242.68
237.90
237.35
236.37
245.03
239.19
240.20
241.00
238.80
248.20
245.83
237.36
238.72
241.47
237.92
237.15
241.47
244.98
240.83
236.75
234.86
236.69
231.66
232.11
241.62
245.29
241.01
Well
Sumbcr Date
Uppc:r Dockery
MW 25• 2/12/1996
2/1411996
2/15/1996
2123/1996
2/28/1996
5/2/1996
6/5/1996
7/!/1996
7/31/1996
111811996
215/1997
5/13/1997
815/1997
11/12/1997
2/411998
5/511998
8/5/1998
! 1/311998
2/10/1999
5/12/1999
815/1999
11/2/1999
2/\612000
5/812000
81312000
1/18/2001
7/11/2001
l/16/2002
7/31/2002
1/2812003
7/10/2003
1/1312004
UD-! 6/5/1996
7/1/1996
7/3!/1996
11/8/1996
2/5/1997
5/13/1997
8/5/1997
11/12/1997
2/4/1998
5/5/1998
8/5/1998
11/311998
2/10/1999
5/12/1999
S/5/1999
I \/211999
2/\612000
51812000
8/3/2000
l/18/2001
7/11/2001
1/16/2002
7/30/2002
1/2812003
7/I0/2003
1/1312004
Table 4
Groundwater Level Datil
Macon/Dockery Site
Richmond County, North Carolina
Page J of 29
Surn}'ed Depth lo
Ca\ing Groundv.ater
Ele1·atlon (ft) (ft)
227.33 26.90
26.79
26.83
27.80
26.09
25.43
25.55
26.26
27.38
26.29
25.27
23.77
26.30
25.52
25.46
21.28
28.37
28.R0
28.82
28.24
]0.77
32.24
29.93
27.62
31.85
32.02
NM
34.24
33.60
28.90
23.10
28.13
251 .50 81.78
43.30
83.70
79.02
81.92
82.36
38.02
41.01
33.76
35.3 I
78.03
74.20
74.22
52.29
75.77
73.43
41.18
72.93
76.60
78.24
43.02
76.13
44.08
37.99
66.21
65.60
•
Corrected
Ground11ater
Elevation (ft)
200.43
200.54
200.50
I 99.53
201.24
201.90
201.78
201.07
199.95
201.04
202.06
203.56
201.03
201.81
201 .87
206.05
198.96
198.53
198.51
199.09
196.56
195.09
197.40
199.71
195.48
!95.3 I
193.09
193.73
198.43
204.23
199.20
169.72
208.20
167.80
172.48
169.58
169.14
213.48
210.49
217.74
216.19
173.47
177.30
177.28
199.21
175.73
178.07
210.32
178.57
!74.90
173.26
208.48
175.37
207.42
213.51
185.29
185.90
•
Well
Number Date
Upper Dockery
UD-2 6/511996
7/111996
7/31/1996
11/8/1996
215/1997
5/13/1997
815/1997
I 1112/1997
2/4/1998
51511998
815/1998
I 1/3/1998
2/10/1999
5/12/1999
8/511999
1112/1999
2/16/2000
5/812000
8/3/2000
1/18/2001
7/11/2001
1/1612002
7/30/2002
1/28/2003
7/10/2003
1/13/2004
UD-3 6/5/1996
7/1/1996
7/31/1996
11/8/1996
2/5/1997
5/1311997
8/5/1997
I 1/12/1997
2/4/1998
515/1998
8/5/1998
11/3/1998
2/1011999
5/12/1999
8/5/1999
lln/1999
2/16/2000
5/812000
8/3/2000
1/18/2001
7/11/2001
1/16/2002
7/30/2002
l/2812003
7/1012003
1/13/2004
Tabla 4
Groundwater Leval Data
Macon/Dockery Site
Richmond County, North C11rolln11
Page 4 ol 29
Sun eyed Depth to
Casing Croundwatrr
Elevntlon (rt) (ft)
251.42 38.27
38.91
41.15
41.06
75.03
78.95
39.13
42.18
35.42
37.41
43.50
78.08
77.48
76.76
75.60
75.57
42.33
78.49
68.05
74,64
68.91
N~1
45.13
38.90
79.83
43.58
249.66 86.42
44.52
86.69
65.81
40.12
38.95
39.16
42.42
35.32
84.67
83.50
78.82
88.09
73.42
72.37
79.06
42.50
68.86
75.15
68.59
85.70
76.0!
84.95
38.49
85.24
44.80
•
Corrrcied
Groundwater
Elrvation (ft)
213.1 S
212.51
210.27
210.36
176.39
172.47
212.29
209,24
216.00
2!4.01
207.92
173.34
173.94
174.66
175.82
175.85
209.09
172.93
183.37
176.78
182.51
206,29
212.52
17I.S9
207.84
163.24
205.14
162.97
183.85
209.54
210.7 l
210.50
207.24
214.34
164.99
166.16
170.84
16I.S7
176.24
177.29
170.60
207.16
180.80
174.51
181.07
163.96
173.65
164.71
211.17
164.42
204.86
•
\Veil
~••umber Date
Upper Dockery
UD-4 6/5/1996
7/!/1996
7/31/1996
11/811996
2/5/1997
5/13/1997
8/5/1997
11/12/!997
2/4/1998
5/511998
8/5/1998
! J/J/!998
2/10/! 999
5/12/1999
815/1999
11/2/1999
2/!6/2000
5/8/2000
8/3/2000
]/18/2001
7/1 !/2001
1/1612002
7/3012002
1/28/2003
7/1012003
1113/2004
UD-5 6/5/1996
7/1/1996
7/31/1996
1118/1996
2/5/1997
5/l 3/1 997
815/1997
I J/l2/l997
2/4/1998
5/5/1998
815/1998
11/311998
2/1011999
5/12/1999
8/5/1999
11/2/1999
2116/2000
51812000
8/312000
I/I 8/200!
7/11/2001
1/16/2002
7/30/2002
1/28/2003
7/10/2003
1/13/2004
Table 4
Groundw.iter Level Data
Macon/Dockery Site
Richmond County, North Carolina
Page 5 ol 29
Surveyed Depth to
Casing Groundwater
£IC\'Rtlon (rt) (rt)
239.07 92.60
35.82
92.37
83.45
93.40
94.10
30.77
34.04
26.70
88.35
39.07
62.72
64.14
87.15
78.81
77.21
33.S6
85.88
88.62
34.04
36.41
71.33
54.50
29.87
17.20
72.30
239.02 28.01
32.35
35.00
34.81
32.15
30.59
30.20
33.83
26.12
70.09
77.23
81.40
45.97
61.76
40.68
42.35
33.28
35.83
34.63
33.55
36.42
36.30
35.43
28.76
16.62
68.40
•
Corrected
Groundwater
Elc\·ation (fl)
146.4 7
203.25
146.70
155.62
145.67
144.97
208JO
205.03
212.37
150.72
200.00
176.35
174.93
151.92
160.26
161.86
205.21
I 53.19
150.45
205.03
202.66
167.74
184.57
209.20
221.87
166.77
211.01
206.67
204.02
204.21
206.87
208.43
208.82
205.!9
212.90
168.93
161.79
157.62
193.05
177.26
198.34
196.67
205.74
203.19
204.39
205.47
202.60
202.72
203.59
210.26
222.40
170.62
•
Well
;,.,·umber Date
Upper Dockery
UD-6 615/1996
7/111996
7/31/1996
1118/!996
215/1997
5/13/!997
8/5/1997
11/12/1997
2/4/1998
515/1998
815/1998
11/3/1998
2/10/1999
5/12/1999
8/5/1999
11/2/1999
2/16/2000
5/812000
8/3/2000
1/18/2001
7/11/2001
l/1612002
7/30/2002
1/2812003
7/!012003
1/1312004
UD-7 6/5/1996
7/1/1996
7131/1996
11/8/1996
2/5/1997
5113/1997
8/5/1997
11/12/1997
2/4/1998
5/5/1998
815/1998
I l/3/1998
2/10/1999
5/12/1999
815/1999
11/2/!999
2116/2000
5/812000
8/3/2000
Ill 8/2001
7/11/2001
1/16/2002
7/3012002
!/28/2003
7/10/2003
l/!312004
Tabla 4
Groundwater level Data
Mai;;on/Doekery Site
Rh;;hmond County, North Carolina
Page 6 of 29
Sun.·e,·ed Depth 10
Casing Ground .... arer
Eh.•,·ation (ft) (ft)
240.91 29.60
34.20
32.79
58.25
56.03
30.04
3 l.05
34.55
26.56
57.83
64.94
69.51
68.86
70.25
68.63
72.92
33.52
63.83
34.90
34.21
DRY
37.95
35.95
29.59
19.36
36.34
255.56 33.67
26.35
24.78
16.21
80.73
60.14
19.81
22.68
11.64
26.06
77.38
DRY
80.83
80.04
24.23
20.10
16.43
19.7!
26.46
74.37
25.40
30.73
29.70
19.51
18.55
19,60
•
Corrected
Ground .... atcr
Ele,•31ion (ft)
211.31
206.71
208.!2
182.66
184.88
210.87
209.86
206.36
214.35
183.08
175.97
171.40
172.05
I 70.66
172.28
167.99
207.39
177.08
206.01
206.70
DRY
202.96
204.96
211.32
221.55
204.57
221.89
229.21
230.78
239.35
174.83
195.42
235.75
232.88
243.92
229.50
178.18
DRY
I 74.73
175.52
231.33
235.46
239.13
235.85
229.10
181.19
230.!6
224.83
225.86
236.05
237.01
235.96
•
Well
Number Date
Upper Dockery
UD-8 6/5/1996
7/1/1996
7/31/!996
1118/1996
5113/1997
815/1997
!1112/1997
2/4/1998
SIS/\ 998
8/5/1998
I \/3/1998
2/10/1999
5/12/1999
8/5/1999
11/2/1999
2/16/2000
S/8/2000
8/J/2000
1/1812001
7/11/2001
1/16/2002
7/30/2002
1/28/2003
7/10/2003
1/1312004
Lower Dockery
MWl6 2114/1996
2115/1996
2/23/1996
5/2/1996
6/5/1996
7/1/1996
7/31/1996
I 1/8/1996
215/1997
5/1311997
8/5/1997
11112/1997
2/411998
5/511998
8/511998
11/3/1998
2/10/1999
5/12/1999
815/1999
I !/211999
2/16/2000
518/2000
8/3/2000
1/1812001
7/l 112001
1/1612002
7/J 1/2002
]/28/2003
7/1012003
1113/2004
Table 4
Groundwater Level Data
Macon/Dockery Site
Richmond County, North Carolina
Page 7 of 29
Surv<'yed Depth lo
ca~ing Groundv.ntcr
Elcntion (fl) (ft)
259.43 34.43
40.21
37.50
34.24
33.61
35.27
39.24
29.!2
30.46
39.37
62.26
67.61
73.95
42.15
41.58
35.5 I
37.34
40.00
40.87
40.72
44.89
43.17
34.85
18.75
50.90
159.97 31.40
3 l.72
32.87
32.70
31.79
31.89
33.48
33.45
30.13
33.01
33.74
33.23
29.63
32.22
33.88
33.43
32.76
33.35
34.12
34.56
30.2!
NIA
NIA
•
Correctl'd
Groundnatcr
Elc,·alion (fl)
225.00
2!9.22
221.93
225.19
225.82
224.!6
220.! 9
230.31
228.97
220.06
197.17
191.82
185.48
217.28
217.85
223.92
222.09
2! 9.43
218.56
218.71
214.54
216.26
224.58
240.68
208.53
128.57
128.25
127.10
127.27
128.18
l 28.08
126.49
126.52
129.84
126.96
126.23
126.74
130.34
127.75
126.09
126.54
127.21
126.62
!25.85
125.4!
129.76
NIA
NIA
l\'01 ~easured -Obstmction
32.62 127,35
33.08 126.89
34.26 125.71
31.06 128.91
32.72 127.25
32.58 127.39
• &;A •
NCDENR
l✓orth Carolina Oepariment of Environment and r·✓atural Resources
Ms. Giezelle Bennett
Remedial Project Manager
S uperfund Branch
Waste Management Division
US EPA Region IV
61 Forsyth Street, 11 th Floor
Atlanta, Georgia 30303
Division of Waste Management
July I, 2004
RE: Annual Summary Status Report
June 1, 2003 through June 1, 2004
Macon/Dockery NPL Site
Cordova, Richmond County, NC
Dear Ms. Bennett:
f/11c:~,c1-::I r. :::2~,l(·!y. Govermir
IJ..liliia:T: G. 2:i::.:-, Jr .. Se:r:rei~i;y
The Superfund Section of the North Carolina Department of Environment and Natural Resources
(NC DENR) has received and reviewed the Annual Summary Status Report -June I, 2003
through June 1, 2004 for the Macon/Dockery National Priority List (NPL) Site. The Superfund
Section offers the attached comments.
The Superfund Section of the NC DENR appreciates the opportunity to comment on this
document. If you have any questions or comments, please feel free to contact me at (919) 733-
2801, extension 349.
Attachment
Sincerely,
})Jf,n{~:tu; .... ,,,1
David B. Mattison, CHMM
Environmental Engineer
NC Superfund Section
'13J•3 f,,.~~i! S:=!~\ri::f.' Ce~i·::; ,=;ai::i-}h. i✓o~!h Caroiin2 27Sri9-·r3.:!G
?h-:ns-::i~:-72::'..~?~:~. '. ~L.Y ~1/Si./;~--3-3·)~ \ lniernet ht;~:/1\·:as1enotn:.or-~
Ms. Giezelle Bennen
July I, 2004
Page I
• •
Annual Summary Status Report -June l, 2003 through June l, 2004
MACON/DOCKERY NPL SITE
Table 3 Influent and Effluent Analytical Results -Lower Dockery
1. Please correct the April 5, 2004 entry for the Lower Dockery groundwater remediation
system effluent to state that groundwater remediation activities have been suspended and
therefore, no samples were collected or analyzed.
Table 4 Groundwater Level Data
2. Please correct Table 4 to include the date "January 13, 2004" for the last entry of
groundwater level data for monitoring wells MW-15, MW-l 5A, MW-I 8, MW-20, MW-
25, UD-1, UD-2, UD-3, UD-4, UD-5, UD-6, UD-7, and UD-8.
June 21, 2004
Ms. Giezelle Bennett
Remedial Project Manager
US EPA, Region IV
61 Forsyth Street, S.W.
Atlanta, Georgia 30303-3104
•
Re: Macon/Dockery Site -Cordova, Richmond County, North Carolina
Annual Summary Status Report; June I, 2003 to June l, 2004
Dear Ms. Bennett:
On behalf of the Macon/Dockery Site Group (MDSG), the Annual Summary Status Report for the period of June l, 2003 to June 1, 2004 is herewith submitted in accordance with SECTION XV -PROGRESS REPORTS of the Unilateral Administrative Order (effective date -June 30, 1992) for the Macon/Dockery Site. Please find one (1) original copy of the report enclosed with this letter.
Should you have any questions, please do not hesitate to contact me.
Sincerely, i
~//U 'D E~R'£ SCIENCES, INC
-~/-;~--
cs S. Gan;rertsfelder
Project G-9)1Sgist
cc: Macon/Dockery Site Group Technical Members
David Mattison, NC Superfund Section
434 Copperfield Blvd. N.'E., Suite B • Concord, North Carolina 28025 • Tel: {704) 795-7075 • Fax: [phone] www.applicdearth.com
\ •
August 13, 2002
Mr. David Mattison
North Carolina Division of Waste Management
Superfund Division
40 I Oberlin Road -Suite 150
Raleigh, North Carolina 27605
RE: Response to Comments
Macon/Dockery Site -Cordova, Richmond County, North Carolina
Annual Summary Status Report-June I, 2001 through June I, 2002
Dear Mr. Mattison:
' The Macon/Dockery Site Group (MDSG) Technical committee is in receipt of
your letter dated June 29, 2002 regarding the North Carolina Department of the
Environment and Natural Resources (NCDENR) review comments of the Annual
Summary Status Report for June I, 2001 through June I, 2002. Applied Earth Sciences,
Inc., (AES) has prepared the attached comments on behalf of the MDSG. The numbered
responses below correspond with the itemized comments contained in the NCDENR June
29, 2002 letter.
Response to Comments -
.JUNE I, 2001 TO .JUNE I, 2002 ANNUAL SUMMARY STATUS REPORT
I. Response:
2. Response:
3. Response:
4. Response:
Section 2.3 was incorrectly titled in the Table of Contents. The correct
title for Section 2.3 is "Operational Difficulties Encountered and
Corrective Actions". A corrected page has been auached to this
Response to Comments leUer.
The page numbers associated with Sections 2.4.1, 3 .0 and 4.0 were
incorrect in the Table of Contents. A corrected page has been attached to
this Response to Comments letter.
Table 3 and Table 8 were titled incorrectly in the Table of Contents. A
corrected page has been attached to this Response to Comments letter.
The second and third sentences of Section 2.1 were revised to state,
"Monthly flow rates and totals for each groundwater system arc
summarized in Table I." A corrected page has been attached to this
Response to Comments leuer.
434 Copperfield Blvd. N.E., Suite B • Concord, Nortll Coro!lnu 28025 • Tel: [phone] • Fax: [phone]
5. Response:
6. Response:
7. Response:
8. Response:
•
The last sentence of Section 2.3.2 indicates that the Soil Vapor
Extraction Abandonment Report, dated May 9, 2002 was submitted to. ·
the regulatory agencies. However, the regulatory agencies have not yet
received the report. A copy of the Soil Vapor Extraction Abandonment
Report will be submitted to the regulatory agencies as soon as possible.
The period averages (June I, 2001 to June I, 2002) for the Macon Source
Area and the Lower Macon groundwater remediation systems were
incorrect in Table 2. A corrected page has been attached to this Response
to Comments letter.
The influent and effluent analytical results for the Lower Dockery,
Macon Source Area Upper/Lower Macon groundwater remediation
systems were inadvertently omitted from Table 3. The results have been
attached to this Response to Comments letter.
The corrected groundwater elevation in Table 4 for monitoring well UM-
2 for the January 2002 sampling event was incorrect. A corrected page
has been attached to this Response lo Comments letter.
The MDSG appreciates the NCDENR's careful review of the Annual Summary Status
Report for June I, 200 I through June I, 2002. Future reports submitted by the MDSG will
incorporate the changes and additions addressed in the comments above.
Should you have any questions or need additional information, please do not hesitate to
contact me.
Sincerely,
APPLIED EARTH SCIENCES, INC.
(lwC
Jill C. Le
Geologist
JCL
Attachment
North Carolina •
Department of Environment and Natural
Resources
Michael F. Easley, Governor
William G. Ross Jr., Secretary
Dexter R. Matthews, Director
Mr. McKenzie Mallary
Remedial Project Manager
Superfund Branch
Waste Management Division
US EPA Region JV
61 Forsyth Street, I Ith Floor
Atlanta, Georgia 30303
RE: Annual Summary Status Report
June I, 2002 through June 1, 2003
Macon/Dockery l\1PL Site
Cordova, Richmond County, NC
Dear Mr. Mallary:
•
July 21, 2003
The Superfund Section of the North Carolina Department of Environment and Natural Resources
(NC DENR) has received and reviewed the Annual Summary Status Report• June I, 2002
through June 1, 2003 for the Macon/Dockery National Priority List (l\1PL) Site. The Superfund
Section offers the attached comments.
The Superfund Section of the NC DENR appreciates the opportunity to comment on this
document. If you have any questions or comments, please feel free to contact me at (919) 733-
2801, extension 349.
Attachment
Sincerely,
/JZJ(k=~,,
David B. Mattison, CHMM
Environmental Engineer
NC Superfund Section
1646 Mail Sen•ice Center, Raleigh, North Carolina 27699-1646
Phone: [phone] \ FAX: [phone] \ Internet: www.enr.state.nc.us
AN EQUAL OPPORTUNITY\ AFFIRMATIVE ACTION EMPLOYER· 50% RECYCLED/ 10% POST CONSUMER PAPER
Mr. McKenzie Mallary
July 2 I, 2003
Page I
• •
Annual Summary Status Report -June 1, 2002 through June 1, 2003
MACON/DOCKERY NPL SITE
Table 7 Summary of Mass VOC Removal Estimates
I. Please correct the Cumulative Volatile Organic Compounds (VOCs) Removed for the
periods May I, 2002 to July 31, 2002, August l, 2002 to October 31, 2002, November l,
2002 to January 31, 2003, and February 1, 2003 to April 30, 2003 for the Upper Dockery
groundwater remediation system in Table 7.
2. Please correct the Average Total VOC Concentration in Table 7 for the Upper/Lower
Macon groundwater remediation system for the period November 2002 through April
2003 to account for both the Upper and Lower Macon systems (i.e., divide total by 2).
Additionally, please revise the Pounds of VOC Removed and Cumulative VOCs Removed
accordingly for the Upper/Lower Macon system for the period November 2002 through
April 2003 in Table 7.
•
July 5, 2002
Mr. David Mattison
North Carolina Division of Waste Management
Superfund Division
401 Oberlin Road-Suite 150
Raleigh, North Carolina 27605
RE: Macon/Dockery Site -Cordova, Richmond County, North Carolina
Annual Summary Status Report -June 1, 2001 through June I, 2002 ·
Dear Mr. Mattison:
Please find attached one copy of the Annual Summary Status Repo11 for the
Macon/Dockery Site. Applied Earth Sciences, Inc. appreciates the opportunity to assist
the Macon Dockery Site Group on this project.
Sincerely,
APPLIED
1
ARTII SCIENCES, INC.
'.ID,m,cs J)
Geologist
JCL
Attachment
434 Copperfield Blvd. N.E., Suite B • Concord, North Carolina 28025 • Tel: [phone] • Fax: [phone]
•
June 30, 2003
Mr. David Mattison
North Carolina Division of Waste Management
Superl'und Division
40 I Oberlin Road -Suite I 50
Raleigh, North Carolina 27605
•
RE: Macon/Dockery Site -Cordova, Richmond County, North Carolina
Annual Summary Status Report -June I, 2002 through June I, 2003
Dear Mr. Mattison:
Please find attached one copy of the above-mentioned report for the
Macon/Dockery Site. Applied Earth Sciences, Inc. appreciates the opportunity to assist
the Macon Dockery Site Group on this project.
Sincerely,
APPLll~D EARTH SCIENCES, INC.
~
Project Geologist
JCL
Attachment
434 Copperfield Blvd. N.E., Suite B • Concord, North Curolino 28025 • Tel: [phone] • Fax: [phone]
www. opp! iedeorth. com
•
June 30, 2003
Ms. Giezelle Bennett
Remedial Project Manager
US EPA, Region IV
61 Forsyth Street, S.W.
Atlanta, Georgia 30303-3104
•
Re: Macon/Dockery Site -Cordova, Richmond County, North Carolina
Annual Summary Status Report; June 1, 2002 to June 1, 2003
Dear Ms. Bennett:
On behalf of the Macon/Dockery Site Group (MDSG), the Annual Summary Status Report for
the period of June I, 2002 to June I, 2003 is herewith submitted in accordance with SECTION
XV -PROGRESS REPORTS of the Unilateral Administrative Order (effective date -June 30,
1992) for the Macon/Dockery Site. Please find one ( l) original copy of the report enclosed with
this letter.
Should you have any questions, please do not hesitate to contact me.
Sincerely,
APPLIED EARTH SCIENCES, INC.
~acY
Project Geologist
cc: Macon/Dockery Site Group Technical Members
David Mattison, NC Superfund Section
434 Copperfield Blvd. N.E., Suite B • Concord, North Carolina 28025 • Tel: [phone] • Fax: [phone]
www .a ppliedea rth. com
·North Carolina . •
Deparbnent of Environment and Natural
Resources
Michael F. Easley, Governor
William G. Ross Jr., Secretary
Dexter R. Matthews, Director
Ms. Giezelle Bennett
Remedial Project Manager
Superfund Branch
Waste Management Division
US EPA Region IV
6 I Forsyth Street, I I th Floor
Atlanta, Georgia 30303
RE: Annual Summary Status Report
June I, 2001 to June I, 2002
Macon/Dockery NPL Site
Cordova, Richmond County, NC
Dear Ms. Bennett:
June 29, 2002
The Superfund Section of the North Carolina Department of Environment and Natural Resources
(NC DENR) has received and reviewed the Annual Summary Status Report -June 1, 2001 to
.lune I, 2002 for the Macon/Dockery National Priorities List (NPL) Site. The Superfund Section
offers the attached comments.
The Superfund Section of the NC DENR appreciates the opportunity to comment on this
document. If you have any questions or comments, please feel free to contact me at (919) 733-
2801, extension 349.
Attachment
1}J l:/(AS '""~" David B. Mattison, CHMM
Environmental Engineer
NC Superfund Section
1646 Mail Service Center, Raleigh, North Carolina 27699-1646
Phone: [phone] \ FAX: [phone] \ Internet: www.enr.state.nc.us
AN EQUAL OPPORTUNm' \ AFFIRMATIVE AC!lON EMPLOYER -50% RECYCLED/ 10% POST CONSUMER PAPER
Ms. Giezelle Bennett
July 29, 2002
Page I
Table of Contents
• •
I. Please correct the Table of Contents to indicate that the title of Section 2.3 is
"Operational Difficulties Encountered and Corrective Actions".
2. Please correct the page numbers associated with Sections 2.4.1, 3.0 and 4.0 in the Table
of Contents.
3. Please correct the Table of Contents to indicate that the titles of Table 3 and Table 8 are
"Influent and Effluent Analytical Results" and "Proposed 2002/2003 Sampling
Schedule", respectively.
Section 2.1 Flow Rates and Totals
4. Please revise the second and third sentences of Section 2.1 to state, "Monthly flow rates
and totals for each groundwater system are summarized in Table I."
Section 2.3.2 Individual Sites -Soil Vapor Extraction System
5. The last sentence of this section indicates that well abandonment forms were submitted in
a report entitled Soil Vapor Extraction Abandonment Report, dated May 9, 2002. This
report has not yet been received by the regulatory agencies and should be submitted as
soon as possible.
Table 2 Summary of Operational Percentages
6. Please correct the period average (June I, 2001 to June I, 2002) for the Macon Source
Area and the Lower Macon groundwater remediation systems. Please correct the
corresponding values as reported in Section 2.2.
Table 3 Influent and Effluent Analytical Results
7. The influent and effluent analytical results for the Lower Dockery, Macon Source Area
and Upper/Lower Macon groundwater remediation systems were inadvertently omitted
from Table 3. Please correct this oversight.
Table 4 Groundwater Level Data
8. The corrected groundwater elevation in Table 7 for monitoring well UM-2 for the January
2002 sampling event is incorrect. Please correct this oversight.
I
September 20. 200 I SUPERFUND SECTION
Ms. Giczclle S. Bennett
Remedial Project Manager
United States Environmental Protection Agency
Region 4
6 I Forsyth Street, S. W.
Atlanta, Georgia 30303-3104
Re: Response To Comments
Annual Summary Status Report-June I, 2000 to June I, 200 I
Macon/Dockery NPL Site
Cordova, North Carolina
Dear Ms. Bennett:
The Macon/Dockery Site Group (MDSG) Technical Committee is in receipt of your letter dated
September 12, 2001 regarding the United States Environmental Protection Agency (EPA) review
cominents of the Annual Summary Status Report for June I, 2000 through June I, 2001. Our consultant
has prepared the following comments on behalf of the MDSG. The numbered responses below
correspond with the itemized comments contained in the EPA September 12, 2001 letter.
Response to Comments -
JUNE 1, 2000 TO ,JUNE I, 2001 ANNUAL SUMMARY STATUS REPORT
I. Response:
2. Response:
3. Response:
4. Response:
,
Table 3 was incorrectly titled Groundwater Quality Summary in th'c report. The
correct title for Table 3 is Influent and Effluent Analytical Results. A corrected
page has been attached to this Response to Comments letter as Attachment I.
Table 7 was not in sequential order with the other tables in the report. Table 7
has been put in sequential order with the other tables. A corrected page has been
attached to this Response to Comments letter as Attachment 2.
Section 2.2, page 2 incorrectly listed the operational percentages for the Upper
and Lower portions of the Upper/Lower Macon Remedial System as 60 and 76
percent respectively. The correct percentages are 82 percent for both the Upper
and Lower portions of the Upper/Lower Macon Remedial System. A corrected
page has been attached to this Response to Comments letter as Attachment 3.
Section 2.3.2, page 5 had System difficulties for the Upper and Lower Macon
Remedial Systems separated in two sections. To eliminate redundancy, the
System difficulties for the Upper and Lower Macon Remedial Systems has been
combined. A corrected page has been attached to this Response to Comments
Ms. Giczclle Bennett
September 20, 200 I
Page No. 2
5. Response:
6. Response:
7. Response:
8. Response:
9. Response:
•
letter as Attachment 4.
Section 2.4-The third sentence in this section has been edited for easy
comprehension. A corrected page has been attached to this Response to
Comments letter as Attachment 5.
The font size in Tables I, 3, and 5 were too small to be legible. The font size for
each table has been increased. A corrected page has been attached to this
Response to Comments letter as Attachment 6.
Table 3 had incorrectly listed sample dates as I /00/0 I. The actual sample date
was 1/18/01. A corrected page has been attached to this Response to Comments
letter, please refer to Attachment I.
Section 2.4.1 contained information that was not readily apparent. This section
has been edited to clarify the significance of this information. A corrected
page has been attached to this Response to Comments letter as Attachment 8.
Table 7 listed the flow volumes for the Lower Dockery system. The flow
volumes were low for 1/26/0 I -4/20/0 I in comparison to the others. Also, the
Upper/Lower Macon system flow volumes were low for 1/00-4/00. After
careful review, the information is correct. Please refer to Section 2.3.2 to review
why the flow volumes were low during the specified time periods.
The MDSG appreciates the EPA's and NCDENR's careful review of the Annual Summary
Status Report for June I, 2000 through June I, 2001. Future reports submitted by the MDSG will
incorporate the changes and additions addressed in the comments above.
Should you have any questions or need additional information, please do not hesitate to contact
me.
Sin~:'~
~vid L. Jones c" ~;chnical Committee
cc: MDSG Members
Mr. David Mattison, NCDENR
Mr. Mike Profit, CDM
Sample Date I, I -Dichloroethane
Location
2/13/96
UD Influent 2/13/96
2/14/96
2/14/96
2/14/96
2/14/96
2/15/96
2115/96
2/16/96
2/17/96
2/17/96
2/22/96
2/22/96
2/28/96
2/28/96
3/8/96
4/3/96
4/3/96
5/3/96
6/5/96
7/1/96
8/1/96
lln/96
1 In/96
Remed1auon Perfonnance Standard
NA= Not Analyzed
Note: • Acetone confirmed by Method 8260
NS= Not Sampled
(ug/L)
4.8
7.7
4.3
6.5
4.4
4.0
4.5
5.5
7.5
5.7
5.5
5.4
4.9
6.4
6.8
52
3.6
3
4
2
2
6.1
<10
NA
3500
TABLEJ
Influent and Effluent Analytical Results
Upper Dockery
Macon/Dockery Site
Richmond County, North Carolina
I, I -Dichloroethene Cis/trans-1,2-Dichloroethene Tetrachloroethene
(ug/L) (ug/L) (ug/L)
!SOE 1.3 1.3
130 <1.0 <LO
89E 12 <1.0
100 <1.0 <1.0
120E 1.4 1.3
110 <1.0 <1.0
130E 12 1.4
140 2 <1.0
160 <1.0 <1.0
!SOE 1.7 2.1
120 <1.0 <1.0
150E 1.4 <1.0
96 <1.0 <1.0
200E 1.9 I
240 <1.0 <1.0
130 1.7 <1.0
l60E I.I 1.6
92 <1.0 <1.0
130 <1.0 <1.0
110 <LO <1.0
77 <1.0 <1.0
220 <5.0 <5.0
240 <10 <10
NA NA NA
7 70
I, I, 1-Trichloroethane Trichloroethylene Toluene
(ug/L) (ug/L) (ug/L) • 54 8 3
33 <1.0 <1.0
55 4.5 <1.0
34 5.3 <1.0
50 7.9 <1.0
48 7.8 <1.0
54 8.3 <1.0
56 8.6 2.8
64 10 <1.0
62 9.4 <1.0
42 6.4 <1.0
52 5.7 <1.0
48 5.5 <1.0
19 5.3 <1.0
50 <1.0 <1.0
55 3.8 <1.0
38 5.6 <1.0
25 3.9 <1.0
38 4.8 <1.0
5.2 <1.0 2.8 • 25 3.6 <1.0
52 5.7 <5.0
54 <10 <10
NA NA NA
200 2.8 !000
Sample Date
Location
2113/96
UD Influent 2/13/96
2/14/96
2/14/96
2/14/96
2/14/96
2/15/96
2/15/96
2/16/96
2/17/96
2/17/96
2/22/96
2/22/96
2/28/96
2/28/96
3/8/96
4/3/96
4/3/96
5/3/96
6/5/96
7/1/96
811/96
I ln/96
11/7/96
Remed1at1on Performance Standard
NA= Not Analyzed
Note: • Acetone confirmed by Method 8
NS = Not Sampled
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper Dockery
Richmond County, North Carolina
Total Xylenes Acetone Chromium Barium Manganese
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
3.1 <10 20 92 64
<3.0 <10 <10 <50 <5.0
<3.0 <10 12 53 14
<3.0 <10 <10 <50 <5.0
<3.0 <10 II 54 14
<3.0 <10' <10 <50 <5.0
<3.0 <10 19 81 53
<3.0 <ID <10 <50 <5.0
<3.0 <ID II 57 II
<3.0 <10 <ID 55 12
<3.0 <10 <ID <50 <5.0
<3.0 <10 13 <50 13
<3.0 <ID <10 <50 <5.0
<3.0 <10 II <50 7.7
<3.0 <10 <ID <50 <5.0
<3.0 <ID <10 <50 <5.0
<3.0 <ID II 52 <5.0
<3.0 <10 <ID <50 <5.0
<3.0 <10 16 58 <5.0
<3.0 <10 <ID <50 <5.0
<3.0 <10 <ID <50 <5.0
<15 <50 11 <50 5.5
<30 2100 19 61 9.5
NA 150* NA NA NA
400 3500 50 l000 50
Zinc Lead Suspended Solids
(ug/L) (ug/L) (mg/L) • 33 3.1 51
<20 <3.0 <5.0
<20 <3.0 52
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 8
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 8
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0 • <20 <3.0 5
<20 <3.0 10
<20 <3.0 <5.0
NA NA NA
5000 IS
Sample Date I, I • Dichloroethane
Location
UD Influent 2/5/97
5/14/97
Bn/97
11/13/97
2/5/98
5n/98
7/9/98
8/7/98
11/4/98
2/11/99
5/12/99
8/5/99
11/3/99
5/9/00
8/3/00
1/\ 8/01
7/11/01
Remed1at1on Performance Standard
NA= Not Analyzed
Note: • Acetone confirmed by Method 8260
NS== Not Sampled
(ug/L)
<25
<1.0
<1.0
<2
<1.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
10
3500
TABLE3
Influent and Effluent Analytical Results
Upper Dockery
Macon/Dockery Site
Richmond County, North Carolina
I, I • Dichloroethene Cis/trans-1,2-Dichloroethene Tetrachloroethene
(ug/L) (ug/L) (ug/L)
100 <25 <25
56 <1.0 <1.0
39 <1.0 <1.0
88 <2 <2
74 <1.0 <1.0
110 <5.0 <5.0
69 <5.0 <5.0
120 <5.0 <5.0
140 <5.0 <5.0
75 <5.0 <5.0
110 <5.0 <5.0
110 <5.0 <5.0
150 <5.0 <5.0
64 <5.0 <5.0
62 <5.0 <5.0
76 <5.0 <5.0
68 <5.0 <5.0
7 70
• 1,1, I-Trichloroethane Trichloroethylene Toluene
(ug/L) (ug/L) (ug/L)
31 <25 <25
16 3.5 <1.0
13 2.2 <1.0
16 4.2 <2
18 7.3 <1.0
24 <5.0 <5.0
17 <5.0 NS
20 6.4 <5.0
21 <5.0 <5.0
13 7.0 <5.0
20 9.4 <5.0
23 5.0 <5.0
26 5.0 <5.0
8.9 <5.0 <5.0
10 <5.0 <5.0
12 <5.0 <5.0
14 9.9 <5.0 • 200 2.8 1000
Sample Date
Location
UD Influent 2/5/97
5/14/97
8/7/97
11/13/97
2/5/98
5/7/98
7/9/98
817/98
11/4/98
2/11/99
5/12/99
8/5/99
11/3/99
5/9/00
8/3/00
1/18/01
7/11/01
Remed1at10n Performance Standard
NA= Not Analyzed
Note: • Acetone confirmed by Method 8
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper Dockery
Richmond County, North Carolina
Total Xylenes Acetone Chromium Barium Manganese
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<75 <250 12 51 <5.0
<3.0 <10 <10 58 5.3
<3.0 <JO <10 <50 <5.0
<6 <20 14.7 55.6 10.3
<3.0 <10 42 65 78
<15 110 16 50 58
NS NS NS NS NS
<5.0 <50 13 50 <5.0
<15 <50 23 93 61
<15 <50 II 62 <5.0
<15 <50 13 59 7.2
<15 <50 14 66 <5.0
<15 <50 13 60 <5.0
<15 <50 14 65 <5.0
<15 <50 <10 77 <5.0
<15 <50 <10 110 32
<15 <50 31 110 74
400 3500 50 1000 50
• Zinc Lead Suspended Solids
(ug/L) (ug/L) (mg/L)
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 36
<20 <3.0 <5.0
NS NS NS
<20 <3.0 <5.0
<20 <3.0 96
<20 <3.0 8.0
<20 <3.0 38
<20 89 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 3.3 280 •
5000 -I'
Sample Date
Location
UD Emuent 5/3/96
6/5/96
7/1/96
8/1/96
9/4/96
I0/1/96
lln/96
12/5/96
1/6/97
2/5/97
3/12/97
4/8/97
5/14/97
6/6/97
7/2/97
8/7/97
9/5/97
10/2/97
11/13/97
12/5/97
Remediation Performance Standard
NA= Not Analyzed
1,1 -Dichloroethane
(ug/L)
<1.0
<1.0
<l.O
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<LO
<1.0
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0 -3,00
TABLE 3
Influent and Effluent Analytical Results
Upper Dockery
Macon/Dockery Site
Richmond County, North Carolina
I, I -Dichloroethene Cis/trans-1,2-Dichloroethene T etrachloroethene
(ug/L) (ug/L) (ug/L)
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
1.5 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<LO <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
7 70
I ,I, 1-Trichloroethane
(ug/L)
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
200
NS = Not Sampled Note: • Acetone confirmed by Mclhod 8260
Trichloroethylene Toluene • (ug/L) (ug/L)
<1.0 <1.0
<1.0 3.9
<1.0 <1.0
<1.0 <10
<1.0 <1.0
<1.0 <1.0
<1.0 <J.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<!.O <1.0 • <1.0 <1.0
<1.0 <1.0
2.8 1000
Sample Date
Location
UD Emuent 513/96
6/5/96
7/1/96
8/1/96
9/4/96
10/1/96
I In/96
12/5/96
1/6/97
2/5/97
3/12/97
4/8/97
5/14/97
6/6/97
7/2/97
8/7/97
9/5/97
10/2/97
11/13/97
12/5/97
Remed1at1on Perfonnance Standard
NA= Not Analyzed
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper Dockery
Richmond County, North Carolina
Total Xylenes Acetone Chromium Barium Manganese
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<3.0 52 <10 <50 <5,0
<3.0 <10 <10 <50 <5.0
<3.0 <10 <IO <50 <5.0
<3.0 20 14 51 7
<3.0 <IO <10 55 <5.0
<3.0 <10 <JO <50 5.9
<3.0 <IO 15 59 <5.0
<3.0 <10 12 54 5.1
<3.0 <10 13 54 <5.0
<3.0 <IO 15 61 5.9
<3.0 <IO <IO 69 <5.0
<3.0 <IO <10 63 <5.0
<3.0 <10 <10 60 7.2
<3.0 <IO <IO 52 <5.0
<3.0 <10 <10 55 <5.0
<3.0 <IO <IO <50 <5.0
<3.0 <10 <10 110 5.2
<3.0 <IO <IO 50.1 <5.0
<3.0 <IO 12.1 67.9 18.6
<3.0 <IO <IO <50 <5.0
400 3500 50 1000 50
Zinc Lead Suspended Solids • (ug/L) (ug/L) (mg/L)
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 8
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3,0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3,0 <5.0
<20 <3.0 <5.0 • 24.8 <3.0 <5.0
<20 <3.0 <5.0
5000 15
Sample Date
Location
UD Emuent 1/9/98
2/5/98
315198
4/3/98
5/7/98
615198
7/9/98
8/7/98
9/l0/98
I 0/2/98
11/4/98
12/1/98
1/11/99
2/11/99
3/5/99
418199
5/12/99
6/10/99
718199
8/5/99
9/9199
I 0/14/99
1113/99
12/3/99
319100
4/7/00
519100
619/00
7/7/00
813100
9/25/00
10/12/00
1/18/01
5/3/01
7/11/01
Remediation Performance Standard
NA= Not Analyzed
I, I -Dich!oroethane
(ug/L)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<l.O
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
' ,500
TABLE 3
Influent and Effluent Analytical Results
Upper Dockery
i\1acon/Dockery Site
Richmond County, North Carolina
I.I -Dichloroethene Cis/trans-1,2-Dich\oroethene Tetrachloroethene
(ug/L) (ug/L) (ug/L)
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
25 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <LO
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <J.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <l.O <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <i.O
<1.0 <1.0 <1.0
<1.0 <LO <1.0
2.1 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <LO <1.0
<LO <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<LO <1.0 <1.0
<1.0 <1.0 <1.0
7 70
I, I, I-Trichloroethane
(ug/L)
<1.0
<1.0
<1.0
<1.0
<1.0
5.5
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<I 0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<!.O
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<l.O
200
NS= Not Sampled Note: • Acetone confirmed by Method 8260
Trichloroethylene Toluene
(ug/L) (ug/L)
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <J.0
<1.0 <1.0 • <1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<LO <1.0
<1.0 <1.0
<1.0 <LO
<1.0 <1.0
<LO <1.0
<1.0 <1.0
<1.0 <1.0
<LO <J.0
<LO <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<J.0 <1.0
<1.0 <1.0
<1.0 <1.0
2.8 1000
Sample Date
Location
UD Emuent 1/9/98
2/5/98
3/5/98
4/3/98
5/7/98
6/5/98
7/9/98
8/7/98
9110/98
10/2/98
11/4/98
12/1/98
1/11/99
2/11/99
3/5/99
4/8/99
5/12/99
6/10/99
7/8/99
8/5/99
9/9/99
10/14/99
11/3/99
12/3/99
3/9/00
4/7/00
5/9/00
6/9/00
7/7/00
8/3/00
9/25/00
10/12/00
1/18/01
5/3/01
7/11/01
Remed1at1on Performance Standard
NA= Not Analyzed
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper Dockery
Richmond County, North Carolina
Total Xylenes Acetone Chromium Barium Manganese
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<3.0 <10 II <50 <5.0
<3.0 <IO <IO <50 <5.0
<3.0 <IO <10 <200 <15
<3.0 <10 <10 <200 5.2
<3.0 <10 10 <50 <5.0
<3.0 <IO <10 57 <5.0
<3.0 <10 <IO 51 <5.0
<3.0 <10 13 53 <5.0
<3.0 <IO II 58 <5.0
<3.0 <25 <10 54 <10
<3.0 <IO II 63 6.3
<3.0 <25 14 63 40
<3.0 <10 II 55 <5.0
<3.0 <10 15 73 23
<3.0 <25 II 62 <5.0
<3.0 <IO II 54 <5.0
<3.0 <IO 12 57 <5.0
<3.0 <IO 13 66 <5.0
<3.0 ~IO 10 64 <5.0
<3.0 <IO 14 66 <5.0
<3.0 <1.0 14 61 <5.0
<3.0 <IO 14 60 <5.0
<3.0 <10 13 58 <5.0
<3.0 <IO 13 64 <5.0
<3.0 <10 14 74 9.3
<3.0 <10 <IO 160 8.0
<3.0 <10 14 69 <5.0
<3.0 <10 <IO 79 <5.0
<3.0 <IO <10 95 10
<3.0 <10 <10 78 <5.0
<3.0 <10 <10 85 <5.0
<3.0 <IO <10 84 <5.0
<3.0 <10 <IO 100 6.3
<3.0 <IO 14 80 5.7
<3.0 <IO 27 79 43.0
400 ' -1500 -,o 1000 50
Zinc Lead Suspended Solids
(ug/L) (ug/L) (mg/L)
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0 • <20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 12
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 5.2 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
<20 <3.0 <5.0
27 <3.0 8.0
-15
Sample Date Chloroform
Location (ug/L)
LD Influent 2/13/96 I.I
2/14/96 1.3
2/14/96 <1.0
2/14/96 1.6
2/14/96 <LO
2/15/96 1.2
2/16/96 3.3
2/22196 2.5
2/28196 1.2
lnS/96 <1.0
318196 2
4/3/96 <1.0
5/3/96 <1.0
615196 <1.0
811196 <2.0
1117196 <2.0
TABLE3
Influent and Effluent Analytical Results
Lower Dockery
Macon/Dockery Site
Richmond County, North Carolina
I, I -Dichloroethane I, I -Dichloroethene Cis/trans-1,2-Dich loroethene
(ug/L) (ug/L) (ug/L)
80 33 <LO
I IOE 43 <1.0
80 13 <1.0
94E 39 1.8
64 16 2.2
82 32 1.7
95 35 2.6
5.8 100 <1.0
93E 33 <1.0
92 35 <1.0
110 47 <1.0
79 36 <1.0
71 30 1.7
67 32 I.I
83 27 <4.0
69 28 <2.0
Methylene chloride
(ug/L)
<2.0
<2.0
<2.0
1.7
2.5
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
2
<2.0
<4.0
Remed1atmn Performance Standard 3500 7 70 5
• the influent and effiuent samples collected on 2-11-99 were reversed in the field, Table 2 has been corrected to illustrate the proper analytical result.
•
I, I, I-Trichloroethane
(ug/L)
40
37
15
39
18
29
31
54
30
30
34
28
40
42
54 • 38
200
Sample Date Trichloroethylene
Location (ug/L)
LO Influent 2/13/96 64
2/14/96 8.6
2/14/96 <5.0
2/14/96 9
2/14/96 6.6
2/15/96 84
2/16/96 8.7
2/22/96 5.2
2/28/96 7.4
2/28/96 6.4
3/8/96 6.7
4/3/96 6.6
5/3/96 5.4
6/5/96 5.2
8/1/96 5.9
I Jn/96 5.8
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Lower Dockery
Macon/Dockery Site
Richmond County, North Carolina
Benzene Toluene Total Xylenes Chromium Barium
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<2.0 17 <3.0 <10 <50
<2.0 8.3 <3.0 <10 <50
<2.0 <2.0 <3.0 <10 <50
<2.0 8.3 <3.0 <10 <50
<2.0 6.5 <3.0 <10 <50
<2.0 5.3 <3.0 <10 <50
<2.0 4.3 <3.0 <10 <50
1.8 13 3.4 14 <50
<2.0 1.3 <3.0 <10 <50
<2.0 <2.0 <3.0 <10 <50
<2.0 <2.0 <3.0 <10 <50
<2.0 <2.0 <3.0 <10 <50
<2.0 <2.0 <3.0 <10 16
<2.0 2.5 <3.0 <10 <50
<2.0 <2.0 <6.0 <10 <50
<2.0 <2.0 <6.0 <10 <50
Remediauon Perfonnance Standard Remediauon Perfonnance Stand 3500 7 70
Manganese Zinc Cadmium Suspended Solids
(ug/L) (ug/L) (ug/L) (mg/L)
260 270 <0.30 <5.0
250 120 <O_JQ <5.0
<5.0 <20 <0,30 <5.0
240 110 <0.30 <5.0
<5.0 <20 <0.30 <5.0
200 84 <0.30 <5.0
190 81 <0.30 <5.0
240 240 <0.30 <5.0
120 77 <0.30 8
<5.0 <20 <0.30 <5.0
95 30 <0.30 <5.0
160 39 <0.30 <5.0
63 200 0.91 <5.0
230 46 <0.30 <5.0
I 10 <20 <0.30 5
230 <20 <0.30 <5.0
) 200
• the influent and effiuent samples coll• the influent and effiuent samples collected on 2-11-99 were reversed in the fie!d, Table 2 has been corrected to illustrate the proper analytical result
•
•
Sample Date Chloroform
Location (ug/L)
LO Influent 3/12/97 <5.0
5/14/97 <1.0
8/7/97 <1.0
11/13/97 <1.0
2/5/98 <1.0
5/7/98 <1.0
8/7/98 <1.0
11/4/98 <1.0
*2/11/99 <1.0
5/12/99 <1.0
8/5/99 <LO
11/2199 <1.0
519100 <1.0
813100 <1.0
1/18101 ..
7/ll/0\ ..
I
Remediation Performance Standard
TABLE 3
Influent and Effluent Analytical Results
Lower Dockery
Macon/Dockery Site
Richmond County North Carolina ,
1, I -Dichloroethane I, I -Dichloroethene Cis/trans-1,2-Dichloroelhene
(ug/L) (ug/L) (ug/L)
66 21 <5.0
62 25 <1.0
47 15 <1.0
33 13 <1.0
34 7.4 <1.0
32 8.2 <1.0
39 7.6 <1.0
34 7.3 <1.0
22 4.6 <1.0
29 5.0 <1.0
22 3.6 <1.0
14 2.6 <1.0
20 2.9 <1.0
23 2.5 <1.0
System Dov:n Not
System Dmm Not
I I -7 70
Methylene chloride
(ug/L)
<10
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Sampled
Sampled
I
5
• the influent and effluent samples collected on 2-11-99 were reversed in the field, Table 2 has been corrected to illustrate the proper analytical result
•
I, I, I -Trichloroethane
(ug/L)
23
23
I 8
12
14
13
13
9.4
6.8
II
10
4.4
7.4
12 .. .. • I
200
Sample Date Trichloroethylene
Location (ug/L)
LO Influent 3/12/97 <5.0
5/14/97 6.2
8n/97 4.1
11/13/97 3.5
2/5/98 2.5
Sll/98 3.6
8n/98 2.6
11/4/98 1.9
•2111199 L8
5/12/99 2.0
8/5/99 L3
11/2/99 10
519/00 <1.0
8/3/00 <1.0
1/18/01 ...
7/11/01 ...
I
Remediation Performance Standard 2.8
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Lower Dockery
Macon/Dockery Site
Richmond County, North Carolina
Benzene Toluene Total Xylenes Chromium Barium
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<5.0 <5.0 <15 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <!.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <LO <3.0 <10 <50
System DO\\TI Not
System I 00\\TI Not
I I I
1000 400 50 1000
Manganese Zinc Cadmium Suspended Solids
(ug/L) (ug/L) (ug/L) (mg/L)
76 <20 <0.30 <5.0
150 <20 <0.30 <5.0
130 <20 <0.30 <5.0
200 <20 <I <5.0
340 <20 <0.30 71
240 <20 <0.30 <5.0
210 <20 <0.30 <5.0
270 <20 <0.30 37
260 <20 <0.30 <5.0
190 <20 160 <5.0
61 <20 <0.30 <5.0
140 <20 <0.30 <5.0
70 <20 <0.30 <5.0
180 <20 <0.30 <5.0
Sampled ...
Sampled ...
I I I I
50 5000 5
• the influent and effluent samples coll• the influent and effiuent samples collected on 2-11-99 were reversed in the field, Table 2 has been corrected to illustrate the proper analytical result
•
•
Sample Date
Location
LD Effiuent 2/15/96
2/16/96
2/22/96
2/28/96
3/8/96
4/3/96
5/3/96
8/1/96
9/4/96
10/1/96
I Jn/96
12/5/96
1/6/97
3/12/97
4/8/97
5/14/97
6/6/97
712197
817197
9/5/97
10/2/97
11/13/97
12/5/97
Remed1auon Perfonnance Standard
Chloroform
(ug/LJ
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<l.O
<1.0
TABLE 3
Influent and Effluent Analytical Results
Lower Dockery
Macon/Dockery Site
Richmond County North Carolina ,
I, I -Dichloroethane I, I -Dichloroethene Cis/trans-1,2-Dichloroethene
(ug/L) (ug/LJ (ug/LJ
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <LO <LO
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
3500 7 70
Methylene chloride
(ug/L)
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2_0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
• the influent and cffiuent samples collected on 2-11-99 were rn·erscd in the field. Table 2 has been corrected to illustrate the proper anal}1ical result
I, I, I-Trichloroethane
(ug/L)
<1.0
<1.0
<!.O
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0 • <l.0
<1.0
<1.0
<1.0
200
Sample Date Trichloroethylene
Location (ug/L)
LD Effiuent 2/15/96 <LO
2/16/96 "<!.O
2/22/96 <1.0
2/28/96 <1.0
3/8/96 <1.0
4/3/96 <l.0
5/3/96 <LO
8/1/96 <1.0
9/4/96 <1.0
l0/1/96 <1.0
11/7/96 <1.0
12/5/96 <1.0
1/6/97 <1.0
3/12/97 <1.0
4/8/97 <1.0
5/14/97 <1.0
6/6/97 <1.0
7/2/97 <1.0
8/7/97 <LO
9/5/97 <LO
10/2/97 <1.0
11/13/97 <1.0
12/5/97 <1.0
TABLE 3 (Continued)
Influent and Efnuent Analytical Results
Lower Dockery
Macon/Dockery Site
Richmond County, North Carolina
Benzene Toluene Total Xy\enes Chromium Barium
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3 0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 34 <3.0 <10 <50
<l.O <1.0 <3.0 <10 <50
<l.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 70
<1.0 <1.0 <3.0 <10 <50
<LO <1.0 <3.0 <10 <50
<LO <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
Remediation Performance Standard Remcdiat10n Performance Stand 3500 7 70
Manganese Zinc
(ug/L) (ug/L)
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
14 <20
13 <20
II <20
<5.0 <20
35 <20
6 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
160 <20
5 200
• the influent and effiuent samples collected on 2-11-99 were reversed in the field. Table 2 has been corrected co illustrate the proper anal}1ical result
Cadmium Suspended Solids • (ug/L) (mg/L)
<0.30 <5.0
<0.30 <5.0
<0.30 5
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
0.56 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 19
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0 • <0.30 <5.0
<0.30 <5.0
<I <5.0
<0.30 <5.0
Sample Date
Location
LO Effiuent 1/9/98
2/5/98
3/5/98
4/3/98
5/7/98
6/5/98
7/9/98
8/7/98
9/10/98
10/2/98
11/4/98
12/1/98
1/11/99
*2/11/99
3/5/99
4/8/99
5/12/99
6110199
7/8/99
8/5/99
9/9199
10/14/99
11/2/99
12/3/99
2/25/00
3/9/00
4/7/00
5/9/00
6/9/00
7/7/00
8/3/00
9/25/00
10/12/00
1/18/01
4/24/01
5/11/01
7/11/01
Remediat10n Perfonnance Standard
Chloroform
(ug/L)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0 ..
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0 ..
<1.0 I <1.0 ..
I
TABLEJ
lnOuent and Effluent Analytical Results
Lower Dockery
Macon/Dockery Site
Richmond County, North Carolina
I, I -Dichloroethane I, I -Dichloroethene Cis/trans-1,2-Dichloroethene
(ug/L) (ug/L) (ug/L)
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
17 3.2 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 ,Sl.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
2.5 <1.0 <1.0
2.8 <1.0 <1.0
6.2 <1.0 <1.0
<1.0 <1.0 <1.0
System Do\\-n Not
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
System 00\\TI Not
<1.0 I <1.0 I <1.0
<1.0 <1.0 <1.0
System Dowp Not
I I
3500 7 70
Methylene chloride
(ug/L)
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<5.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Sampled
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Sampled
I <2.0
<2.0
Sampled
I
' • the influent and effiuent ~am pies collected on 2-11-99 were re,,.ersed in the field, Table 2 has been corrected to il!u~trate the proper analytical result
I, I, I-Trichloroethane
(ug/L)
<1.0
<1.0
5.5
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1.2
2.6
<J.0 .. • <1.0
<1.0
<1.0
<1.0
<1.0
<1.0 ..
I <1.0
<1.0 ..
I
200
Sample Date
Location
LO Effiuent 1/9/98
2/5/98
3/5/98
4/3/98
5/7/98
6/5/98
7/9/98
8/7/98
9/10/98
10/2/98
11/4/98
12/1/98
1/11/99
*2/11/99
3/5/99
4/8/99
5/12/99
6/10/99
7/8/99
8/5/99
9/9/99
10/14/99
11/2/99
12/3/99
2/25/00
3/9/00
4/7/00
519/00
6/9/00
7/7/00
8/3/00
9/25/00
10/12/00
1/18/01
4/24/01
5/1 l/01
7/11/01
Remediation Performance Standard
Trichloroethylene
(ug/L)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<l.O
<1.0
<1.0 ...
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0 ...
<LO I <1.0 ...
I
2.8
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Lower Dockery
Macon/Dockery Site
Richmond County, North Carolina
Benzene Toluene Total Xylenes Chromium Barium
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<LO <1.0 <3.0 <10 <200
<1.0 <1.0 <3.0 <10 <200
<LO <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 17
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 72
<1.0 <1.0 <3.0 <10 93
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <LO <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
System Dov.11 Not
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3_0 <10 <50
<1.0 <1.0 <3.0 <10 <50
<1.0 <1.0 <3.0 <10 <50
System Dov.11 Not
<1.0 I <1.0 I <3.0 I <10 I <50
<1.0 <1.0 <3.0 <10 <50
SysteQt Dov.11 Not
I I I I
1000 400 50 1000
Manganese Zinc
(ug/L) (ug/L)
34 <20
250 <20
85 <20
39 <20
17 <20
63 <20
<5.0 <20
<5.0 <20
<5.0 <20
140 <20
10 <20
<5.0 <20
5.2 <20
15 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
<5.0 <20
5.0 <20
520 31
470 38
II <20
110 <20
320 <20
53 <20
Sampled
180 <20
<5.0 <20
100 <20
<5.0 <20
<5.0 97
<5.0 97
Sampled
I <5.0 I <20 I <5.0 <20
Sampled
I I I
50
• the innuenl il!ld effiuent samples collected on 2-11-99 were reversed in the tield, Table 2 has been corrected 10 illustrate the proper analytical rcsuh
Cadmium Suspended Solids
(ug/L) (mg/L)
<0.30 <5.0
<0.30 58
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5_0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0_30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
52 9.5
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0 • ...
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0
<0.30 <5.0 ...
<0.30 I <5.0
<0.30 <5.0 ...
I .
Sample Date
Location
l.I',l.iSA Influent 2/13/96
2/14/96
2/14/96
2/15/96
2/16/96
2/17/96
2/21)96
2'28/96
3/8/96
413196
5/3196
615196
7/1/96
7/30/96
Remediab.on Performance Standard
Note: NA -Not Analyzed
DUP -duplicate
Chloroform
(ug,L)
<1.0
LI
<1.0
<1.0
<1.0
<LO
LI
<LO
<1.0
<1.0
<1.0
<1.0
<l.0
<LO
TABLE3
Influent and Effluent Analytical Results
Upper Macon Source Arca
Macon/Dockery Site
Richmond County North Carolina
1,1 • Dichloroethane 1,1 • Dichloroethene Cis/trans-1,2-Dichloroethene
(ug/L) (ug/L) (ug/L)
15 14 19
14 II IO
II 14 II
12 14 II
7.5 21 17
9.7 18 16
IO 17 16
9.8 16 13
7.6 IO IO
5.5 16 8.5
4.8 12 6.9
8.7 22 6
3.8 II 6.9
7.9 15 IO
3500 7 70
T ctrachloroethene 1.1.1-Trichloroethane Trichloroethylene
(ug/L) (ug/L) (ugtl.)
16 5.9 25
7.3 7.2 IO
17 6.1 17
18 5.9 16
14 9.7 25
II 7 2'
15 7.6 25
12 5.8 21
7.7 4.1 16
7.4 5.4 18
5.7 <1.0 12
<1.0 6 13
4.8 4.3 12 • 6.4 4.2 13
200 2.8
Sample Date
Location
ID.fSA Influent 2/13/96
2/14/96
2/14/96
2/15/96
2/16/96
2117/96
2/22196
2128/96
3/8/96
4/3/96
5/3/96
6/5/96
7/1/96
7/30/96
Remediation Performance Standard
Note: NA=NotAnalyzed
DUP • duplicate
Vinyl chloride Benzene
(ug'L) (ug'L)
<l.0 <l.O
<1.0 1.5
<LO I
<LO 1.3
<1.0 <l.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<l.0 <1.0
<1.0 <LO
I.I <1.0
<1.0 <1.0
4.5 <1.0
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper Macon Source Area
Macon/Dockery Site
Richmond CountY, North Carolina .
Toluene Chromium Barium Manganese Zinc
(ug'L) (ugiL) (ug'L) (ug'L) (ug'L)
1.9 <10 140 300 55
<LO <JO 110 180 <20
<1.0 <JO 110 160 20
I <JO 100 140 <20
<I.0 <10 120 160 <20
<l.O <10 110 110 <20
<l.O <10 120 65 <20
<l.O <10 130 52 <20
<LO <10 130 41 <20
<1.0 <10 110 27 <20
<1.0 <JO 97 21 <20
3.6 <10 130 19 <20
<1.0 11 110 13 <20
<1.0 <JO 130 13 <20
1000 50 1000 50 5000
•
Cadmium Lead ~1ercmy Suspended Solids
(ug'L) (ug'L) (ug1L) (mg/L)
<0.30 3.5 <.2 21
<0.30 <3.0 <2 <5.0
<0.30 <3.0 <.2 <5.0
<0.30 <3.0 <.2 <5.0
<0.30 <3.0 0.22 <5.0
<0.30 <3.0 <.2 <5.0
<0.30 <3.0 <.2 <5.0
<0.30 <3.0 <.2 7
<0.30 <3.0 <.2 <5.0
<0.30 8.2 <.2 <5.0
<0.30 <3.0 <.2 <5.0
<0.30 <3.0 <.2 5
<0.30 <3.0 NA 5 • <0.30 <3.0 NA 6
I.I
Sample Date
Location
Ul\1SA Influent llnt96
2/4/97
(DUP) 2/4/97
5/12197
(DUI') 5/12/97
8nt91
11/13/97
2/5/98
Sn/98
Sn/98
11/4/98
2/11/99
5/13/99
8/5/99
11/2199
2/16/00
5/8/00
8/2!00
1/18/01
7/11/0 I
Remediation Performance Standard
Note: NA= Not Analyzed
DUP -dupllcat~
Chloroform
(u,vl,)
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<2.0
<2.0
<2.0
<10
<10
<10
<25
<25
<25
<2.0
<10
<10
<10
<25
TABLE 3
Influent and Effluent Analytical Results
Upper Macon Source Area
Macon/Dockery Site
Richmond County North Carolina
I, I -Dichloroethane I, I • Dichloroethene Cis/trans-1, 2-Dichloroethene
(u,vl,) (u,vl,) (u,vl,)
7.2 9.2 7.5
3.0 27 7.8
2.4 25 6.2
3.8 26 16
4.6 21 16
!LO 55 23
4.8 72 12
12.0 110 21
l LO 67 IS
<10 120 <10
<10 180 <10
16 370 12
<25 380 <25
<25 490 <25
<25 480 <25
59 32 37
18 110 26
<10 400 <10
<10 75 10
44 330 57
' .,500 7 70
•
Tetrachloroethene I, I, I-Trichloroethane Trichloroi::thylene
(u,vL) (o,vl,) (ug/L)
2.3 3.4 10
2.3 8.8 IS
1.8 79 14
8.9 5 22
8.2 3.7 18
12 6.9 17
8.7 12 13
11 24 17
13 16 11
<20 22 <10
<10 23 <10
30 57 14
<25 61 <25
<25 78 <25
26 69 <25
<2.0 <2.0 2.5
<10 <10 <10 • 49 54 <10
<10 <10 10
28 42 26
200 2.8
Sample Date
Location
ill\,fSAlnfluent IIn/96
'114191
(DUP) 2/4/97
S/12/97
(DUP) 5/12/97
8n/97
11/13/97
215/98
sn19s
8/7/98
11/4/98
2/11/99
5/13199
8/5/99
I 1/2/99
2/16/00
5/8/00
8/2/00
1/18/01
7/11/01
Remediation Perfonnanee Standard
Note: NA= !'Jot Analyzed
DUP • duplicate
Vinyl chloride Benzene
(uglL) (uglL)
2 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<LO <LO
<LO <1.0
<2.0 <2.0
6.6 <2.0
6.6 <2.0
<10 <10
<10 <10
<ID <10
<25 <25
<25 <25
<25 <25
54 <2.0
<10 <10
<10 <10
<10 <10
<25 <25
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper Macon Source Area
Macon/Dockery Site
Richmond Count\· North Carolina '' Toluene Chromium Barium Manganese Zinc
(uglL) (uglL) (ug,L) (ug/L) (uglL)
I <ID 140 9.8 <20
<LO <10 150 24 <20
<LO <10 140 17 <20
<LO <10 120 68 <20
<l.O <10 150 55 <20
<1.0 34 210 93 <20
<2.0 <10 139 <5.0 <20
<2.0 <10 190 16 <20
<2.0 <10 190 50 <20
<10 <10 180 34 <20
<10 <10 180 22 <20
<10 <10 200 25 <20
<25 <10 160 14 <20
<25 <10 140 12 <20
<25 <10 180 13 <20
<2.0 <10 290 53 <20
<10 <10 350 76 <20
<10 <10 170 13 <20
<10 <10 98 <5.0 <20
<25 <10 360 <5.0 <20
1000 50 1000 50 5000
•
Cadmium Lead ~fercury Suspended Solids
(uglL) (uglL) (ug;L) (mg,L)
<0.30 <3.0 NA 10
<0.30 <3.0 NA 36
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA 5
<0.30 7.4 NA NS
<I <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA 5
<0.30 <3.0 NA <5.0
32 <3.0 NA <5.0
<0.30 5.9 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0 • <0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
15 I.I
Sample Date
Location
illv1SA Eilluent 2/17/96
2/22196
2/28/96
3/8/96
413196
513196
6/5196
7/1/96
7/30/96
9/4/96
10/1/96
lln/96
1215196
1/6/97
214/97
3/12197
4/8/97
5/12197
6/6/97
7f2197
Sn/97
9/5/97
10/2i97
11/13/97
12/5/97
R=:dia11.on Perfonnanee Standard
Note: NA-Not Analyzed
Chloroform
(ug/L)
<I.0
<1.0
<1.0
<LO
<LO
<LO
<1.0
<1.0
<LO
<1.0
<LO
<l.O
<1.0
<LO
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
TABLE3
Influent and Effluent Analytical Results
Upper Macon Source Arca
Macon/Dockery Site
Richmond County North Carolina
I, I -Dichloroelhanc 1.1 • Didtloroethene Cisftraru-1,2-Dichloroethenc
(ug/L)
<LO
<LO
<LO
<LO
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<LO
<1.0
<1.0
<LO
<1.0
3500
DUP -duplicate
(ug1L)
<LO
<1.0
<1.0
<1.0
<I.0
<l.O
<1.0
<1.0
<LO
<1.0
<1.0
<l.O
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<).0
7
(ug/L)
<1.0
<1.0
<l.O
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<LO
<LO
<LO
<LO
<LO
<LO
<LO
<1.0
70
• Tetrachloroethene I, I, 1-T richloroelhane Trichloroethylene
(og/L) (ug1L) (ug,1L)
<1.0 <LO <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <LO
<1.0 <1.0 <LO
<1.0 <J.0 <LO
<1.0 <J.0 <1.0
<1.0 <1.0 <LO
<1.0 <1.0 <LO
<1.0 <LO <LO
<1.0 <J.0 <1.0
<1.0 <J.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <i.O
<1.0 <1.0 <1.0
<1.0 <I.0 <LO • <1.0 <l.O <LO
<1.0 <l.O <l.O
<1.0 <1.0 <1.0
<1.0 <l.O <1.0
<1.0 <l.0 <1.0
<1.0 <1.0 <LO
200 2.8
Sample Date
Location
lJj\fSA Effluent 2117/96
2/2]}96
2/28/96
3/8/96
4/3/96
5/3/96
615196
7/1/96
7(30/96
9/4/96
10/1/96
lln/96
12/5/96
1/6/97
2/4/97
3/12/97
4/8/97
5/12/97
6/6/97
7{2j97
Sn/97
9/5/97
10{lJ97
I 1/13/97
12/5/97
Remediation Pcrfom1ance Standard
Note: NA=Not Analyzed
Vinyl chloride Benzene
(uglL) (uglL)
<LO <l.O
<LO <1.0
<1.0 <1.0
<1.0 <1.0
<l.O <l.O
<LO <1.0
<LO <l.O
<LO <LO
<LO <LO
<LO <LO
<LO <LO
<LO <1.0
<1.0 <LO
<l.O <1.0
<l.O <1.0
<l.O <1.0
<LO <LO
<LO <LO
<LO <LO
<l.O <LO
<LO <LO
<LO <1.0
<LO <1.0
<LO <1.0
<LO <1.0
Note: NA= Not Analyzed
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper Macon Source Arca
Macon/Dockery Site
Richmond County North Carolina ,
Toluene Chromium Barium Manganese Zinc
(uglL) (uglL) (uglL) (ug/L) (uglL)
<1.0 <10 120 120 <20
<LO <10 120 70 <20
<1.0 <10 130 51 <20
<LO <10 120 37 <20
<LO <10 110 27 <20
<LO <10 120 26 <20
2.9 <10 130 22 <20
<1.0 12 110 14 <20
<1.0 <10 200 110 41
<1.0 II 170 68 26
<1.0 <10 130 13 <20
<1.0 <10 140 13 <20
<LO <10 170 17 <20
<LO <10 200 46 25
<LO <10 160 29 <20
<1.0 <10 130 30 <20
<1.0 <10 200 30 <20
<1.0 12 210 95 35
<1.0 <10 240 74 <20
<LO <10 180 41 <20
<1.0 II 230 250 40
<LO <10 130 27 <20
<1.0 <10 185 31.5 <20
<1.0 <10 129 84.2 <20
<1.0 <10 150 160 26
1000 50 1000 50 5000
DUP. duplicate
• Cadmium Lead Mercury Suspended Solids
(uglL) (uglL) (ug/L) (mg,L)
<0.30 <3.0 <.2 <5.0
<0.30 <3.0 <.2 <S.O
<0.30 <3.0 <.2 <5.0
<0.30 <3.0 <.2 <5.0
<0.30 <3.0 <.2 5
<0.30 <3.0 <.2 <5.0
<0.30 <3.0 <.2 6
<0.30 <3.0 NA <5.0
<0.30 9.2 NA 23
<0.30 66 NA 16
0.47 <3.0 NA 24
<0.30 <3.0 NA 26
<0.30 <3.0 <0.20 5
<0.30 3.5 NA 120
<0.30 <3.0 NA 8
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA 7
<0.30 <3.0 NA 100
<0.30 <3.0 NA <5.0 • <0.30 <3.0 NA <5.0
<0.30 4.8 NA NA
<0.30 <3.0 NA 22
<0.30 <3.0 NA II
<I <3.0 NA 8
<0.30 6.5 NA <5.0
15 1.1
Sample Date
Location
Ui\lSA Effiuent l/9/98
2/5!98
3/5/98
413/98
Sn/98
6/5/98
7/9/98
sn/98
9/10/98
l0nl98
11/4/98
12/1/98
1/1 I/99
2/11/99
315/99
4/8/99
5/13/99
6110199
7/8/99
8/5/99
919199
10/14/99
11/2/99
12/3/99
2/16/00
3/9/00
4n/OO
5/8/00
6/9/00
7n/00
812/00
9n5/00
10/12/00
1/18/01
5(3/0 I
7/11101
Remediation Performance S!Andard
Note. NA• Not Analyzed
Chloroform
(ug'L)
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<LO
<LO
<1.0
<1.0
<l.O
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<l.O
TABLE 3
Influent and Effluent Analytical Results
Upper Macon Source Area
Macon/Dockery Site
Richmond Countv North Carolin a
l,l -Dichloroethane 1,1 -Dichloroethene C is/trans-I , 2-Dichlorocthene
(ug'L)
<1.0
<LO
<1.0
<J.0
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<l.O
<l.O
<LO
<LO
<LO
<LO
<LO
<1.0
<1.0
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<l.O
<1.0
<1.0
<1.0
<1.0
<1.0
3500
DUP duplicate
(ug'L)
<l.O
<1.0
<I.0
<1.0
<1.0
<LO
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<LO
<1.0
<LO
<1.0
<LO
<LO
<LO
<LO
<LO
<LO
<1.0
16
<1.0
<1.0
<1.0
9.9
<1.0
<1.0
<1.0
<1.0
<1.0
<l.O
7
(ug'L)
<l.O
<1.0
<1.0
<1.0
<l.O
<LO
<LO
<LO
<LO
<LO
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<I.0
<LO
<I.0
<1.0
70
Tetrach\oroethcne 1, 1, I-Trichloroethane Trichloro1:thylene
(ug'L) (ug/L) (ug'L)
<l.O <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <LO <1.0
<J.O <1.0 <1.0 • <1.0 <1.0 <l.O
<LO <1.0 <1.0
<LO <l.O <1.0
<LO <l.O <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <LO
<1.0 <LO <1.0
<LO <LO <1.0
<LO <LO <LO
<LO <1.0 <LO
<LO <1.0 <LO
<1.0 <LO <LO
<LO <1.0 <l.O
<LO <1.0 <LO
<LO <1.0 <LO
<LO <LO <LO
<LO <1.0 <LO
<LO <1.0 <1.0
<1.0 <1.0 <1.0 • LO 2.6 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <LO <1.0
<1.0 1.4 <1.0
<1.0 <1.0 <1.0
<l.O <1.0 <1.0
<1.0 <LO <1.0
<I.0 <LO <1.0
<1.0 <LO <1.0
<I.0 <LO <1.0
200 2.S
Sample Date
Location
IBvfSA Effluent 1/9/98
2/5/98
3/5/98
4/3/98
Sn/98
6/5/98
7/9/98
Sn/98
9/10/98
10/2/98
11/4/98
12/1/98
1/11/99
2/11199
315199
4/8/99
5/13/99
6/10/99
7/8/99
8/5/99
9/9/99
10/14/99
l l/2/99
lV3/99
2/16/00
3/9/00
4n!OO
5/8/00
6/9/00
1moo
8/2100
9/25/00
10/12/00
l/18/01
5/3/01
7/11/0 I
Remediall.on Perfonnance Standard
Note: NA= Not Analyz.ed
Vinyl chloride Benzene
(ug/L) (ug/L)
<1.0 <LO
<1.0 <LO
<l.0 <1.0
<l.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <1.0
<1.0 <l.O
<1.0 <I.O
<l.0 <I.0
<1.0 <LO
<1.0 <LO
<l.0 <l.0
<l.O <1.0
<1.0 <1.0
<1.0 <LO
<1.0 <1.0
<LO <1.0
<LO <1.0
<LO <1.0
<LO <1.0
<LO <1.0
<1.0 <1.0
<1.0 <LO
<1.0 <LO
<1.0 <1.0
<LO <1.0
<1.0 <1.0
<LO <LO
<1.0 <l.O
<1.0 <l.O
<1.0 <l.O
<1.0 <l.O
<1.0 <l.O
<l.O <LO
<LO <1.0
Note: NA -Not Analyzed
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper Macon Source Arca
Macon/Dockery Site
Richmond Countv North Carolina ·'
Toluene Chromium Barium Manganese Zinc
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<LO <10 180 33 <20
<LO <IO 200 20 <20
<1.0 II 210 160 25
<LO <10 <200 64 <20
<LO <10 210 310 29
<1.0 <10 160 46 <20
<LO <10 240 110 <20
<1.0 <10 190 37 <20
<LO <IO 200 56 <20
<1.0 <10 190 110 <20
<1.0 10 220 450 48
<1.0 <10 160 68 <20
<1.0 <10 150 120 <20
<1.0 <10 230 120 22
<l.0 <10 180 100 25
<LO <10 170 72 <20
<1.0 <10 170 66 <20
<1.0 <IO 180 100 <20
<1.0 <IO 170 160 <20
<1.0 <10 140 13 <20
<1.0 <10 150 340 24
<1.0 <IO 200 37 <20
<1.0 <10 180 13 <20
<LO <10 180 18 <20
<LO <10 240 300 40
<LO <10 230 47 <20
<1.0 <10 210 40 <20
<1.0 <10 410 54 <20
<LO <10 180 61 <20
<LO <10 220 250 32
<LO <10 190 80 <20
<LO <10 280 8.3 <20
<1.0 14 180 84 <20
<LO <10 200 36 <20
<LO 28 440 350 29
<LO 15 360 110 <20
1000 50 1000 50 5000
DUP -duplicate
Cadmium Lead MercurJ Suspended Solids
(ug/L) (ug/L) (ug/L) (rng/L)
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA 6
<0.30 4.1 NA <5.0
<0.30 <3.0 NA <5.0 • <0.30 5 NA 13
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA 33
<0.30 <3.0 NA 12
<0.30 4.6 NA 180
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
36 <3.0 NA 8.5
<0.30 <3.0 NA <5.0
<0.30 3.3 NA <5.0
<0.30 8.7 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 5.3 NA 130 • <0.30 <3.0 NA 5.0
<0.30 <3.0 ~A <5.0
<0.30 <3.0 NA <5.0
<0.30 <3.0 NA <5.0
<0.30 3.8 NA <5.0
<0.30 4.1 NA 38.0
<0.30 <3.0 NA <5.0
<0.30 3.7 NA 6.0
<0.30 <3.0 NA 8.5
<0.30 19 NA <5.0
<0.30 3.7 NA 38
15 LI
Sample Date Chloroform
Location (,g/L)
UM Influent 2/22/96 6
2/23/96 3
2/24/96 1.4
2/25/96 1.2
2/28/96 3.5
3/8/96 <1.0
3116196 <1.0
4/3/96 <1.0
615196 <1.0
7/1/96 <1.0
7/30/96 <1.0
1117196 <1.0
2/4/97 <1.0
5112197 <1.0
8/7/97 <1.0
11113/97 <1.0
Remedtatmn Perfonnance Standard
TABLE3
Influent and Efnuent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond Countv, North Carolina .
I, I -Dichloroethane 1,1 -Dich\oroethene Cis/trans-1,2-Dichloroethene
(,g/L) (,g/L) (,g/L)
4.1 1.6 5.8
4.5 1.6 64
4_6 1.8 6.4
<1.0 2.2 6.6
5.8 1.4 8.6
4.7 I 8.6
5.5 1.8 9.2
4.4 1.6 6.6
4.9 1.8 7.7
3.8 I.I 6.1
4.1 2.1 8.6
5.3 1.9 6.6
5.5 1.6 7
II 2.5 1.8
5.8 1.8 7
5.3 I.I 3.9
3500 7 70
•
Methylene chloride Tetrachloroethene I, I, I-Trichloroethane
(,g/L) {,g/L) (,g/L)
<2.0 4.8 <1.0
<2.0 4.8 <1.0
<2.0 6 <1.0
<2.0 6.9 <1.0
<2.0 5 <1.0
<2.0 3.8 <1.0
<2.0 4.6 <1.0
<2.0 4 <1.0
<2.0 <1.0 <1.0
<2.0 3.3 <1.0
<2.0 3.3 <1.0
<2.0 2.3 <1.0
<2.0 2.5 <1.0
<2.0 <1.0 4.5
<2.0 2.1 <1.0 • <2.0 1.6 <1.0
. 200
Sample Date Trichloroethylene
Location (ug/L)
UM Influent 2/22/96 12
2/23/96 12
2/24/96 14
2/25/96 15
2/28/96 14
3/8/96 12
3/16/96 12
4/3/96 10
6/5/96 9.8
7/1/96 7.6
7/30/96 9.8
I ln/96 8.3
2/4/97 8.2
5/12/97 4.1
8/7/97 8.1
11/13/97 3 9
Remed1auon Perfonnance Standard 2.8
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County, North Carolina
Toluene Chromium Barium Manganese Zinc
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
15 <10 <50 36 120
12 <10 <50 31 110
9.7 <JO <50 30 110
9.2 <JO <50 28 110
2.9 <10 <50 18 40
<l.0 <10 <50 13 50
<1.0 <JO <50 20 50
<1.0 <10 <50 9.3 26
3.2 <JO <50 <5.0 22
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 36 <5.0 <20
<1.0 <10 <50 12 <20
<1.0 <10 <50 7.2 <20
<1.0 <10 <50 28.7 <20
1000 50 1000 50
•
Cadmium Lead Suspended Solids
(ug/L) (ug/L) (mg/L)
<0.30 4.8 <5.0
<0.30 4.5 <5.0
<0-30 36 <5.0
<0.30 3.4 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 3 10
<0.30 <3.0 13
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 NA
<0.30 <3.0 <5.0
5 15
Sample Date Chloroform
Location (,g/L)
UM Influent 2/5/98 <1.0
5/7/98 <1.0
8/7/98 <1.0
11/4/98 <1.0
2/11/99 <1.0
5/13/99 <1.0
8/5/99 <1.0
11/3/99 <1.0
2/16/00 <1.0
5/8/00 <1.0
8/2/00 <1.0
1/18/01 ...
7/11/01 <5.0
Remed1at10n Performance Standard
TABLE 3
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County, North Carolina
1,1 • Dichloroethane I, I -Dichloroethene Cis/trans-1,2-Dich\oroethene
(,g/L) (,g/L) (,g/L)
6.9 1.6 6.7
5 1.8 5.6
3.6 1.6 6.4
2.9 1.4 3.7
4.3 2 5.1
4.4 3.4 8.1
4.1 3.3 6.5
4.2 5.6 6.1
3 3.1 4.0
3.9 10 6.3
4.5 16 8.7
Not Sampled
9.7 37 7.6 . 3,00 7 70
•
Methylene chloride Tetrachloroethene I, I, !-Trichloroethane
(,g/L) (,g/L) (,g/L)
<2.0 I.I <1.0
<2.0 2.5 <1.0
<2.0 1.2 <1.0
<2.0 <1.0 <1.0
<2.0 I <1.0
<2_0 1.6 <1.0
<2.0 1.3 <1.0
<2.0 1.5 I
<2.0 1.2 <1.0
<2.0 2.3 1.6
<2.0 4.2 2 6
System DO\\n ...
<10 7.3 S 6
200 •
Sample Date Trichloroethylene
Location (ug/L)
UM Influent 2/5/98 5.9
5/7/98 5.8
8/7/98 6.2
11/4/98 3.6
2/11/99 4.4
5/13/99 5.3
8/5/99 4.2
11/3/99 4.2
2/16/00 2.8
5/8/00 3.2
8/2/00 5.6
1/18/01 ...
7/11/01 6.7
Remed1at1on Performance Standard 2.8
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County, North Ca.-olina
Toluene Chromium Barium Manganese Zinc
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<1.0 <10 <50 8.4 <20
<l.0 <10 <50 16 <20
<1.0 <10 <50 13 <20
<1.0 <10 <50 52 <20
<1.0 <10 <50 14 <20
<1.0 <10 <50 II <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<LO <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
Not Sampled
<5.0 <10 <50 15 <20
1000 50 IOOO so 5000
•
Cadmium Lead Suspended Solids
(ug/L) (ug/L) (mg/L)
<0.30 <3.0 5
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
49 <3.0 <5.0
<0.30 7.2 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
System 00\\11 ...
<0.30 <3.0 5.0
5 15 •
Sample Date Chloroform
Location (ug/L)
LM Influent 2122196 14
2/23/96 13
2/24/96 8.9
2/25/96 8.2
2/28/96 3
3/8/96 <1.0
3/16/96 <1.0
4/3/96 <1.0
5/3/96 <1.0
6/5/96 <1.0
7/30/96 <1.0
11/7/96 <1.0
2/4/97 1.6
(DUP) 2/4/97 1.5
5/12/97 <1.0
8/7/97 <1.0
11/13/97 <1.0
Remediation Performance Standard
TABLE3
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County, North Carolina
1, 1 -Dichloroethane I, I -Dichloroethene Cis/trans-1,2-Dichloroethene
(ug/L) (ug/L) (ug/L)
26 9.1 4.4
29 II 4.9
30 13 49
31 13 5
32 15 5.6
9.5 1.6 2.4
8.1 1.8 2.4
7.3 26 2.3
8.6 2.7 29
12 4.7 3.4
17 66 <1.0
II 3.3 2.2
9.8 2.1 2.4
9.0 1.8 2.1
5.3 2.4 6.4
13.0 <1.0 1.2
9.5 1.8 <1.0
3500 7 70
•
Methylene chloride Tetrachlorocthcnc I ,I, I-Trichloroethane
(ug/L) (ug/L) (ug/L)
<2.0 2 14
<2.0 2.1 15
<2.0 2.7 17
<2.0 2.6 17
<2.0 2.4 17
<2.0 <LO 2.5
<2.0 <1.0 3.4
<2.0 I 4
<2.0 <1.0 4.2
<2.0 <1.0 5.3
<2.0 <1.0 6.7
<2.0 <1.0 5.2
<2.0 <I 0 4.4
<2.0 <1.0 3.8
<2.0 2 <l.0
<2.0 <LO 4.4 • <2.0 <1.0 3.3 -' 200
Sample Date Trichloroethylene
Location (ug/L)
LM Influent 2/22/96 3.3
2/23/96 3.6
2/24/96 4.5
2/25/96 4.4
2/28/96 4
3/8/96 I.I
3/16/96 1.4
4/3/96 4.7
5/3/96 4.6
6/5/96 4.9
7/30/96 4.1
11/7/96 4.5
2/4/97 3.7
(DUP) 2/4/97 3.1
5/12/97 8 3
8/7/97 3.3
11/13/97 1.9
Remediation Performance Standard 2.8
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper/Lower Macon System
l\.'lacon/Dockery Site
Richmond County, North Carolina
Toluene Chromium Barium Manganese Zinc
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
15 <JO 77 130 120
18 <10 81 140 130
17 <10 86 160 160
15 <10 86 160 160
4.2 <10 100 150 240
<1.0 <10 <50 72 52
<1.0 <10 <50 53 57
<1.0 <JO <50 72 44
<1.0 <10 24 31 27
4.6 <JO <50 21 24
<1.0 <10 <50 20 <20
<1.0 <10 <50 6.4 <20
<1.0 <10 34 19 <20
<1.0 <JO 34 16 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 55.1 <20
1000 50 1000 50 5000
•
Cadmium Lead Suspended Solids
(ug/L) (ug/L) (mg/L)
<0.30 5.5 <5.0
<0,30 5 <5.0
<0.30 4.4 <5.0
<0.30 3.2 <5.0
<0.30 3.3 <5.0
<0.30 <3.0 7
<0.30 <3.0 <5.0
<0.30 <3.0 7
<0.30 <3.0 <5.0
<0.30 <3.0 5
<0.30 <3.0 6
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 NA • <0.30 <3.0 <5.0
5 15
Sample Date Chlorofonn
Location (ug/L)
LM Influent 215/98 <1.0
517198 <1.0
8/7/98 <1.0
11/4/98 <1.0
2/11/99 <LO
5/13/99 <1.0
8/5/99 <1.0
11/3/99 <1.0
2116/00 <LO
5/8/00 <1.0
8/2/00 <1.0
1/18/01 ...
7/11/01 <LO
Remediation Performance Standard
TABLE 3
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County, North Carolina
1,1 -Dichloroethane I, I -Dichloroethene Cis/trans-1,2-Dichloroethene
(ug/L) (ug/L) (ug/L)
13.0 1.9 1.2
12.0 2.5 1.6
16.0 1.1 1
13.0 1.3 <1.0
13.0 2.2 1.3
10.0 1.4 <LO
7.8 1.0 <1.0
2.0 <1.0 1.1
<1.0 <1.0 1.4
1.9 <1.0 <LO
I 1.0 2.7 1.2
Not Sampled
6.1 2.8 1.0
3500 7 JO
•
Methylene chloride Tetrachloroethene I, I, I-Trichloroethane
(ug/L) (ug/L) (ug/L)
<2.0 <1.0 4.1
<2.0 <1.0 4.1
<2.0 <1.0 4.4
<2.0 <1.0 4.1
<2.0 <1.0 3.1
<2-0 <1.0 4.1
<2.0 <1.0 3.4
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 4.7
System 00\vn ...
<2.0 <1.0 2.8 • 200
Sample Date Trichloroethylene
Location (ug/L)
LM Influent 2/5/98 3.4
5/7/98 3.7
8/7/98 3.5
11/4/98 3.0
2/11/99 3.6
5/13/99 3.7
815/99 2.4
11/3/99 I
2/16/00 <1.0
5/8/00 <1.0
812/00 5.1
1118/0i ...
7/11/01 3.4
Remed1at1on Performance Standard 2.8
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County, North Carolina
Toluene Chromium Barium Manganese Zinc
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<1.0 <10 <50 11 <20
<1.0 <IO <50 <5.0 <20
<1.0 <IO <50 17 <20
<1.0 <10 58 99 <20
<1.0 <10 <50 8.8 <20
<1.0 <10 <50 70 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 6.1 <20
<1.0 <IO <50 6.0 39
<1.0 <10 <50 6.4 <20
<1.0 <10 <50 <5.0 <20
Not Sampled
<l.O <10 <50 7.3 <20
1000 50 1000 50 5000
•
Cadmium Lead Suspended Solids
(ug/L) (ug/L) (mg/L)
<0.30 <3.0 <S.0
<0 30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 5.0 40
<0.30 <3.0 9.0
25 <3.0 <5.0
<0.30 6.4 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0.30 <3.0 <5.0
<0_30 <3.0 <5.0
System DO\\n ...
<0.30 <3.0 12 • -I 5
Sample Date Chloroform
Location (ug/L)
U/L Effiuenc 2/24/96 <1.0
2125196 <1.0
2/28/96 <1.0
3/8/96 <1.0
3/16/96 <1.0
4/3/96 <1.0
5/3/96 <1.0
6/5/96 <1.0
7/1/96 <1.0
7/30/96 <1.0
9/4/96 <LO
10/1/96 <1.0
lln/96 <1.0
12/5/96 <1.0
1/6/97 <1.0
2/4/97 <1.0
3/12/97 <1.0
4/8/97 <1.0
5/12/97 <1.0
6/6/97 <1.0
7/2/97 <1.0
7n5/97 NA
8/7/97 <1.0
9/5/97 <1.0
I Of2J97 <1.0
11/13/97 <1.0
12/5/97 <1.0
Remed1at1on Perfonnance Standard
Note: 7/25/97 Sampled for Manganese only.
TABLE3
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County North Carolina ,
I, I -Dichloroethane 1,1 -Dichloroethene Cis/trans-1,2-Dichloroethene
(ug/L)
<1.0
<1.0
<1.0
<1.0
<1.0
1.8
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
2.4
NA
<1.0
<1.0
<1.0
<LO
<1.0
3500
(ug/L)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
NA
<1.0
<1.0
<1.0
<1.0
<1.0
7
DUP -duplicate
(ug/L)
<1.0
<LO
<LO
<1.0
<1.0
1.6
<1.0
<1.0
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1.8
NA
<1.0
<1.0
<1.0
<1.0
<1.0
70
NA= Not Analyzed
Methylene chloride Tetrachloroethene I, I, I-Trichloroethane
(ug/L) (ug/L) (ug/L)
<2.0 <LO <1.0 • <2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <!.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <LO
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <LO <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <!.O <1.0
<2.0 <I 0 <1.0 • NA NA NA
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <LO
<2.0 <1.0 <1.0
. ) 200
NS= Not Sampled
Sample Date Trichloroethylene
Location (ug/L)
U/L Effiuent 2/24/96 <1.0
2/25/96 <1.0
2/28/96 <1.0
3/8/96 <1.0
3/16/96 <1.0
4/3/96 1.9
513/96 <1.0
6/5/96 <LO
7/1/96 <1.0
7/30/96 <1.0
9/4/96 <1.0
10/1/96 <1.0
11/7/96 <1.0
12/5/96 <1.0
1/6/97 <LO
2/4/97 <1.0
3/12/97 <1.0
4/8/97 <1.0
5/12/97 <LO
6/6/97 <1.0
7/2/97 <1.0
7/25/97 NA
817/97 <1.0
9/5/97 <1.0
10/2/97 <1.0
11/13/97 <1.0
12/5/97 <1.0
Remediation Performance Standard 2.8
Note: 7/25/97 Sampled for Manganese o DUP -duplicate
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County, North Carolina
Toluene Chromium Barium Manganese Zinc
(ug/L) (ug/L) (ug/1.) (ug/L) (ug/L)
<1.0 <10 83 150 150
<1.0 <10 90 160 170
<1.0 <10 <50 32 59
<1.0 <IO <50 39 56
<l.O <10 <50 31 51
<1.0 <10 <50 44 54
<1.0 <10 31 10 21
2.1 <10 <50 7.5 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <ID <50 <5,0 <20
<1.0 <10 39 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <ID <50 79 <20
NA NA NA 36 NA
<1.0 <10 <50 5.4 <20
<1.0 <IO <50 <5.0 <20
<1.0 <10 <50 6.3 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
Cadmium
(ug/L)
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
1000 50 1000 50 5000 5
NA= Not Analyzed NS = Not Sampled
Lead Suspended Solids
(ug/1.) (mg/L)
3.7 <5.0 • 3.6 <5.0
<3.0 g
<3.0 <5.0
<3.0 <5.0
3.6 10
<3.0 <5.0
<3_0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 24
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 8
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0 • NA NA
3.1 NS
<3.0 <5.0
<3.0 25
<3.0 <5
<3.0 <5
Sample Date Chloroform
Location (ug/L)
U/L Effiuent 1/9/98 <1.0
2/5/98 <1.0
3/5/98 <1.0
4/3/98 <1.0
sn/9s <1.0
6/5/98 <1.0
7/9/98 <1.0
8/7/98 <1.0
9/10/98 <1.0
10/2/98 <1.0
11/4/98 <1.0
12/1/98 <1.0
1/11/99 <LO
2/11/99 <1.0
3/5/99 <1.0
4/8/99 <1.0
5/13/99 <1.0
6/10/99 <1.0
7/8/99 <1.0
8/5199 <1.0
9/9199 <1.0
10/14/99 <1.0
11/3/99 <1.0
12/3/99 <1.0
2/17/00 <1.0
319/00 <1.0
4n/OO <LO
5/8/00 <1.0
6/9/00 <1.0
7/7/00 <1.0
8/2/00 <1.0
9/25/00 <1.0
10/12/00 <1.0
1/18/01 ...
4/24/01 <1.0
513101 <1.0
7/20/01 <1.0
Remediauon Performance Standard
Note: 7/25/97 Sampled for Manganese only.
TABLE3
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County North Carolina ' I, 1 -Dich\oroethane 1, 1 • Dichloroethene Cis/trans-1,2-Dichloroethene
(ug/L)
<1.0
<1.0
<1.0
<1.0
<1.0
<l.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Not
<1.0
<1.0
<1.0
3500
(ug/L)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Sampled
<1.0
<1.0
<1.0
7
DUP-duplicate
(ug/L)
<1.0
<1.0
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
70
NA"' Not Analyzed
Methylene chloride Tetrachloroethene ! , I, I-Trichloroethane
(ug/L) (ug/L) (ug/L)
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <!.O • <2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <!.O <LO
<2.0 <LO <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<5_0 <1.0 <l.O
<2.0 <1.0 <LO
<2.0 <!.O <1.0
<2.0 <1.0 <1.0
<2.0 <LO <J.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <J.0 <1.0
<2.0 <J.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0 • <2.0 <1.0 <!.O
<2.0 <1.0 <1.0
<2.0 <LO <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
System Dov-.n ...
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
<2.0 <1.0 <1.0
200
NS = Not Sampled
Sample Date Trichloroethylene
Location (ug/L)
U/L Effiuent 1/9/98 <1.0
2/5/98 <1.0
3/5/98 <1.0
4/3/98 <1.0
517198 <1.0
6/5/98 <1.0
7/9/98 <1.0
8/7/98 <1.0
9/10/98 <1.0
10/2/98 <1.0
11/4/98 <1.0
12/1/98 <1.0
1/11/99 <1.0
2/11/99 <1.0
3/5/99 <1.0
4/8/99 <1.0
5/13/99 <1.0
6/10/99 <1.0
7/8/99 <1.0
8/5/99 <1.0
9/9/99 <1.0
10/14/99 <1.0
11/3/99 <1.0
12/3/99 <1.0
2/17/00 <1.0
3/9/00 <1.0
4n!OO <1.0
5/8/00 <1.0
6/9/00 <LO
7/7/00 <1.0
812100 <LO
9/25/00 <1.0
I 0/12/00 <1.0
1/18/01 ...
4/24/01 <1.0
5/3/01 <1.0
7/20/01 <1.0
Remed1at10n Performance Standard 2.8
Note: 7/25/97 Sampled for Manganese o DUP -duplicate
TABLE 3 (Continued)
Influent and Effluent Analytical Results
Upper/Lower Macon System
Macon/Dockery Site
Richmond County, North Carolina
Toluene Chromium Barium Manganese Zinc
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<1.0 <IO <50 <5.0 <20
<1.0 <10 56 <5.0 <20
<1.0 <10 <200 <\5 <20
<1.0 <10 <200 <5.0 <20
<1.0 <IO <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 9 2 <20
<LO <IO <50 6.7 <20
<1.0 <IO 31 <JO <20
<1.0 <10 <50 6.2 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5_0 <20
<1.0 <10 <50 <5_0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <IO <50 <5.0 <20
<1.0 <IO <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 47 <20
<1.0 <10 <50 <5.0 <20
<1.0 <IO <50 <5.0 <20
<1.0 <IO <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <IO <50 <5.0 <20
<1.0 <IO <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <IO <50 <5.0 <20
<1.0 <10 <50 <5.0 <20
<1.0 <IO <50 20 <20
<1.0 <10 <50 <5.0 <20
<1.0 <10 <50 <5_0 27
<1.0 <IO <50 <5.0 <20
Not Sampled
<1.0 <IO <50 <5_0 <20
<1.0 <IO <50 <5.0 <20
<1.0 <IO <50 <5.0 <20
Cadmium
(ug/L)
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0_30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
<0.30
System
<0.30
<0.30
<0.30
1000 )0 1000 50 -5000 )
NA== Not Analyzed NS= Not Sampled
Lead Suspended Solids
(ug/L) (mg/L)
<3.0 <5
<3.0 <5
<3.0 <5.0
<3.0 <5.0
<3_0 NA
<3.0 <5.0 • <3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
3.7 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3.0 <5,0
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0 • <3.0 <5.0
<3.0 <5.0
<3.0 <5.0
<3_0 <5.0
<3.0 <5.0
<3.0 <5.0
00\\Tl ...
<3.0 <5.0
<3.0 <5.0
<3.0 <5.0
•
Sample Date
Location
U/L Macon Air Stack :Vl6/96
5/3/96
615196
7/1/96
8/!/96
I 1/8/96
115197
5/ 12/97
8/7/97
! J/13/97
2/6198
5/7/98
817/98
1114198
2/11/99
5/13199
8/5/99
11/3/99
1117100
5/8100
811/00
1100/00
4/24/0 I
Propcrt\' Linc 2/16/96
4/J/96
513196
6/5/96
7/1/96
8/1/96
I 1/8/96
215197
5/12197
,nm
11/13/97
2/6/98
snm
&17/98
11/41'98
2/11/99
5/13/99
!/l/99
I 113/99
2/17/00
5/i/00
&/3/00
1/18/01
Tabk 6 (Page J of J)
Air Quality Summary
Macon/Dockery Site
Richmond County North Carolina
Chloroform 1,2-Dichlorodhcnc
m1>/mJ mv/mJ
<to <10
<10 <10
<10 <10
8l0 <10
<10 <10
<10 <10
<10 <10
<10 <10
<2.0 <1.0
<2.0 <1,0
<2,0 <2.0
<2.0 <2.0
<2.0 <2,0
NS ~s
<2.U <1,0
<2.0 <1.0
<2.0 <2.0
<2.0 <2 0
<2,0 <2,0
<1.0 <1.0
<1,0 s.: 1,0
•••Nol Sampled
<t.O <1.0
<to <to
<10 <10
<10 <10
<to <to
<10 <10
<10 <10
<10 <10
<to <10
<10 <10
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<1.0 <LO
•
Trichlorocthcnc Toluene
mVml ml!/ml
<to <10
<10 <10
<10 <10
29 <10
<IO <10
<10 <10
<10 <10
<10 <10
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <1.0
<2.0 <2.0
NS NS
<2.() <Ul
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<1.0 <1.0
<l.O <1.0
Svs1crn Dow11 •••
<1.0 <t ,0
<IO <to
<10 <to
<to <10
<to <to
<to <10
<10 <10
<10 <10
<10 <10
<10 <10
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<2.0 <2.0
<LO <1.0
.. Nol anal d. Ted.Jar bag deflated durimt sample shi"'"'mt••
<1,0 I <1.0 I <1.0 <1.0
I I I
•
Sy11

■
m
UpperDod<•ry
12-1-9810 12-31-98
12-31-9810 1-27-99
1-27-99 to 2-23-99
2-23-99 lo 3-30-99
3-30-99 to 4-29-99
4-29-99 to 5-27-99
5-27-99 to &-2 .. 99
8-24-99 to 7.29-99
7-29-99 to 8-27-99
8-27-99 to Q.-27-99
9-27-IXI to 10-29-99
10-29-99 lo 11-24-9
11-24-99 to 12-»9
12-30-99 to 1-21-00
1-21-99 to 2-25-00
3-1-00 to 3-3 1-00
3-31-00 to 4-27-00
◄-27-00 to 5-26-00
S.28-00 lo 0-30-00
6-30-00 !o 7-26-00
7-26-00 lo 6-211-00
6-211-00 lo 9-2S-00
9-25-00 to 10-26-00
10-26-00 10 1-26-01
1-26-01 to 4-20-01
•
TABLE 7
SUMMARY OF MASS voe REMOVAL ESTIMATES
MACON/DOCKERY SITE
RICHMOND COUNTY, NORTH CAROLINA
PAGE 1 OF 4
A~Total Po,.,nd1ofVOC
Flow VOU'Tle for voe R.mov9<1FO!'
MOO~ p-~-p_, CI.A'TIO!attv• voe• Remov.a
(galons) '""' (Poundl) (Pound•)
Mar-96 <100,155 "' 005 0.1!15
Apr-96 261!1,151 210 0.50 1.15
M■y-96 06,826 m 0.10 1.25
J="' "7.350 120 0.10 1.35
J'-'-'6 163,426 108 0.15 1.50
A"9-96 218,330 28' 0.52 2.02
S,~96 1"9,420 28' 0.35 2.37
Qci.96 140,191 28' 0,33 2.70
No~-96 438,013 29' 1.07 3,77
O.C-96 161,903 29' 0" 4, 17
Jan-97 294,071 29' 072 4.89
Feb-97 267,596 131 0 29 5. 18
Mar-97 250,068 131 0 27 5.,
Apr-97 276.556 131 030 5 75
May-97 289,938 76 0.18 5,93
Jun-97 135,575 76 O 09 6,02
Jul-97 99,896 76 006 6 08
Aug-97 70,967 ,, 003 611
Sep-97 56,256 " 003 6 "
Oct-97 277,505 " 0 12 6,26
No~-97 143. 168 "' 0 13 639
Oec-97 78,332 "' 00' 6"
Jan-98 103,968 "' 0 09 655
feb,98 200,588 99 3 0 25 680
Mar-98 326,525 993 0" 707
Apr-98 419.475 993 0 35 "' May-98 440,448 '" 090 8.32
Jun-98 200,192 '" 0<1 8.73
Ju1•98 337,046 "' 0 69 9"
Aug-96 432,719 146 4 0.53 9,95
Sap-98 4\ 1,677 146 4 0.50 10 45
Oct-98 439,378 146.4 0 54 tO 99
Nov-98 382,586 101 0,49 11.<16
Dec-98 500,450 101 0.67 12. ,s
Jan-99 552,796 101 0.7◄ 12.89
Feb-99 52◄,380 95 0.◄

2

13,31
M■r-99 614,8-41 05 0.49 13 80
Apr-99 571.148 95 0,◄

5

14.25
M■y-99 524,349 139 .• 0.01 1•4.86
Jun-99 ◄31,742 139.4 0.50 15 36 ,.,._,. 392,518 139.4 0.., 15.82 ....... ,~.407 136 0.22 16.04 ...... 303,910 136 0.35 16.39
0«-99 304,213 136 0,42 1tU1
Nov-99 2n,oss 101 0.42 17.23
0.0-99 389,lMJ 181 0.59 17.82
Joo-00 23e,733 181 0.36 18.18
F•>-00 0 101 0.00 18.18
M■r-00 178,l!I09 101 0.27 18.45
Ap,-00 1CM,914 181 0.25 18,70
M■y•OO 4111,400 72.11 025 16.115
Jun-00 104,658 72.11 0 06 111 01
Jul-00 60,000 72.11 005 "06
AUQ-00 \JJ,575 720 O OB 19 14
Sep-00 1211.206 72.0 008 111 21
Oci•OO 1'6,404 n.o 009 111 31
Jan,01 615,761 ,ao "' 19 76
Apr,01 510.427 ,ao 0 39 10 \5
•
June I, 2000 to June I, 200 I, the system now totals arc as follows:
• U ppcr Dockery
• Lower Dockery
I, 73 8,03 I gallons
3,164,543 gallons
• Macon Source Arca 1,771,343 gallons
• Upper & Lower Macon 2,922,075 gallons
Percent Operational
•
System downtime is recorded on a daily basis and summarized on the monthly progress reports.
A summary of the operational time, expressed as a percent of the total time, is contained in Table
2. The following is the average percent each area operated during the reporting period of June I,
2000 to June I, 2001:
• Upper Dockery 98 percent
• Lower Dockery 83 percent
• Macon Source Area 92 percent
• Upper Macon 82 percent
• Lower Macon 82 percent
• SVE System Turned Off
2.3 Operational Difficulties Encountered and Corrective Actions
Several difficulties were encountered during the reporting period that affected the operation or
the remedial systems at the Macon/Dockery site. The following sections describe the difficulties
2
• •
high sump level alarm. The sump was drained and the system restarted on December 8, 2000.
• From December 29, 2000 through February 8, 200 I the Lower Dockery groundwater
remedial system was inoperable clue to a damaged tank level controller. J\ new controller
was installed during the February 8, 2001 site visit. Due to the system operational clirliculties,
influent and effluent samples were not collected during the semi-annual groundwater
sampling event.
• Upon installation of the new tank level controller for the remedial system, it was clctcnninecl
that the effluent pump was inoperable clue to freeze damage. The pump was removed and
subsequently replaced on April 6, 2001.
Macon Source Area
• On August 12, 2000 the main breaker in the control panel tripped due to an apparent electrical
surge. The breaker was reset and the system restarted on August 18, 2000.
Upper Macon/Lower Macon
• Operational difficulties with the water level measurement devices for the Upper Macon holding
tank caused the Upper Macon system to be inoperable from July 17 to July 26, 2000. The
holding tank was refilled on July 26, 2000 and the system was restarted. Groundwater recovery
pumps from the Lower Macon groundwater system continued to operate as designed during the
repair process.
• The Upper Macon groundwater system was not operable from October 26 to December 15, 2000
due to a malfunctioning re-circulation pump. The pump was removed for diagnosis and repair
4
• •
and was replaced during the December 15, 2000 site visit. Groundwater recovery pumps from
the Lower Macon groundwater system continued to operate as designed during the repair
process.
• During the January 26, 2001 site visit, it was noted that a malfunctioning emuent pump caused
the Upper/Lower Macon System to shut down, resulting in freeze damage to the system piping
and equipment. The freeze damage resulted in warped bag filter housing lids causing the system
to remain inoperable. The bag filter housing lids and effluent pump were repaired on February
16, 2001 and the system restarted. Upon restarting the system, it was determined that the pump
was in need of further repair. The pump was removed from the system for diagnosis and repair.
The pump was re-installed on April 6, 2001 and the system was re-started. Upon re-starting the
system, it was determined that the coupling between the pump motor and pump was damaged.
The coupling was replaced and the system re-started on April 23, 2001. The freeze damage
resulted in the Upper/Lower Macon System to remain inoperable for 87 days during the
reporting period.
Soil Vapor Extraction System
In a letter dated January 12, 2000, the USEPA Region IV requested that the MDSG prepare a
Sampling and Analysis Plan (SAP) for soil sampling in the area of former Lagoon 7. On May
12, 2000, the MDSG submitted a SAP to the EPA Region JV office proposing soil assessment
activities in the area of Lagoon 7. The SAP was approved by the EPA on June 12, 2000. The
implementation of the SAP demonstrated that the performance remediation goals established for
the Lagoon 7 area had been met. The EPA agreed with the MDSG recommendation to
5
• •
discontinue remediation at Lagoon 7 in the EPA's Five Year Review Report dated September
2000. The soil vapor extraction system discontinued operation in June 2000 subsequent to the
soil assessment of the subsurface soil at Lagoon 7.
2.4 Effluent Concentrations
A measure of the system performance can be made based on the system's ability to reduce
influent concentrations to remedial performance standards. Since system effluent is directed to
an infiltration gallery, effluent concentrations arc designed to be no greater than the remediation
goals established for groundwater at the site. The analytical results of effluent water samples
collected from the remedial systems arc included in Table 3. During the reporting period the
effluent sample analytical results have been below the performance standard concentrations,
except for the parameters listed in the following tables:
Effluent Exceedances
Macon/ Dockery Site -Cordova, North Carolina
System Sample Date Manganese Concentration
(ug/L)
Lower Dockery 7-7-00 100
Upper Macon Source Arca 7-7-00 250
Upper Macon Source Arca 8-2-00 80
Upper Macon Source Area 10-12-00 84
Upper Macon Source Area 5-3-01 350
so
11flo ..... 0(1: .... ,-:r. ..... ..,.. " .,,...,_..,... C'l-no . .
6
Upper Dockery
Monthly Average
Date Monthly Flow Total Flow Flow Rate
(gallons) (gallons) (gallons per minute)
Mar-96 400,155 400,155 9.3
Apr-96 286,151 686,306 6.6
May-96 66,826 753,132 1.5
Jun-96 97,350 850,482 2.3
Jul-96 163,426 1,013,908 3.8
Aug-96 218,330 1,232,238 5.1
Sep-96 149,420 1,381,658 3.5
Oci-96 140,191 1,521,849 3.2
Nov-96 438,013 1,959,862 10.1
Dec-96 161,903 2,121,765 3.7
Jan-97 294,071 2,415,836 6.8
Feb--97 267,596 2,683,432 6.2
Mar-97 250,068 2,933,500 5.8
Apr-97 276,556 3,210,056 6.4
May-97 289,938 3,499,994 6.7
Jun-97 135575 3,635,569 3.1
Ju!-97 99896 3,735,465 2.3
Aug-97 70967 3,806,432 1.6
Sep-97 52256 3,858,688 1.2
Oci-97 277505 4,136,193 6.4
Nov-97 143168 4,279,361 3.3
Dec-97 78332 4,357,693 1.8
TABLE 1
SUMMARY OF GROUNDWATER FLOW TOTALS
MACON/DOCKERY SITE
RICHMOND COUNTY NORTH CAROLINA
Lower Docke1v Macon Source Area
Monthly Average Monthly Average
Monthly Flow Total Flow Flow Rate Monthly Flow Total Flow Flow Rate
(gallons) (gallons) (gallons per minute) (gallons) (gallons) (gallons per minute)
328,448 328,448 7.6 426,083 426,083 9.9
191,090 519,538 4.4 364,772 790,655 8.4
245,715 765,253 5.7 257,720 1,048,575 6.0
8,619 773,872 0.2 114,048 1,162,623 2.6
151,827 925,699 3.5 202,477 1,365,100 4.7
126,232 1,051,931 2.9 207,503 1,572,603 4.8
63,833 1,115,764 1.5 209,649 1,782,252 4.9
460,379 1,576,143 10.7 101,512 1,883,764 2.3
183,210 1,759,353 4.2 116,354 2,000,118 2.7
137,594 1,896,947 3.2 137,045 2,137,163 3.2
286,202 2,163,149 6.6 146,036 2,283,199 3.4
90,912 2,274,061 2.1 215,730 2,498,929 5.0
277,823 2,551,884 6.4 223,222 2,722,151 5.2
180,560 2,732,444 4.2 253,167 2,975,318 5.9
684,855 3,417,299 15.9 223,177 3,198,495 5.2
501987 3,919,286 11.6 234669 3,433,164 5.4
581027 4,500,313 13.4 117736 3,550,900 2.7
414199 4,914,512 9.6 50248 3,601,148 1.2
481049 5,395,561 11.1 36264 3,637,412 0.8
457604 5,853,165 10.6 70207 3,707,619 1.6
308483 6,161,648 7.1 102326 3,809,945 2.4
272079 6,433,727 6.3 114452 3,924,397 2.6
Upper/Lower Macon • Monthly Average
Monthly Flow Total Flow Flow Rate
(gallons) (ga!lons) (gallons per minute)
375,318 375,318 8.7
709,726 1,085,044 16.4
482,220 1,567,264 11.2
48,305 1,615,569 1.1
759,920 2,375,489 17.6
638,400 3,013,889 14,8
302,505 3,316,394 7.0
640,760 3,957,154 14,8
871,155 4,828,309 20.2
725,549 5,553,858 16,8
596,131 6,149,989 13.8
795,239 6,945,228 18.4
939,710 7,884,938 21.8
918,080 8,803,018 21.3
999,040 9,802,058 23.1
605792 10,407,850 14.0
223859 10,63U09 5.2
911679 11,543,388 21.1
917631 12,461,019 21.2 • 821135 13,282.154 19.0
140796 13,422,950 3.3
844299 14,267,249 19.5
upper UOCKe
Date Monthly Flow Total Flow Monthly Average
(gallons) (gallons) (gallons per minute)
Jan•98 103968 4,461,661 2.4
Feb--98 296588 4,758,249 6.9
Mar•98 326525 5,084,774 7.6
Apr•98 419475 5,504,249 9.7
May•98 440446 5,944,695 10.2
Jun•98 200192 6,144,887 4.6
Jul-98 337048 6,481,935 7.8
Aug•98 432719 6,914,654 10,0
Sep-98 411677 7,326,331 9.5
0ct·98 439378 7,765,709 10.2
Nov•98 362586 8,128,295 8.4
Dec-98 500450 8,628,745 11.6
Jan•99 552796 9,181,541 12.8
Feb--99 524380 9,705,921 12.1
Mar-99 614841 10,320,762 14.2
Apr-99 571148 10,891,910 13.2
May-99 524349 11,416,259 12.1
Jun•99 431.742 11,848,001 10.0
Jut-99 392,518 12,240,519 9.1
Aug-99 190.407 12,430,926 4.4
Sep-99 303,910 12,734,836 7.0
Oct-99 364,213 13,099,049 8.4
Nov-99 277,055 13,376,104 6.4
Dec-99 389,943 13,766,047 9.0
Jan-00 236,733 14,002,780 5.5
FeO-OO 0 14,002,780 0.0
Mar.co 176,609 14,179,389 4.1
Apr-00 164,914 14,344,303 3.8
May-00 419,400 14,763,703 9.7
Jun-00 104,658 14,868,361 2.4
MOO 80,000 14,948,361 1.9
Aug-00 133,575 15,081,936 3.1
Sep-00 129,206 15,211,142 3.0
Qct-00 148,404 15,359,546 3.4
Jan-01 615,761 15,975,307 14.3
Apr-01 526.427 16,501,734 12.2
Total Flow for June 1, 2000 to June 1, 2001
1,738,031
TABLE 1
SUMMARY OF GROUNDWATER FLOW TOTALS
MACONfDOCKERY SITE
RICHMOND COUNTY, NORTH CAROLINA
Lower uocKery Macon .:lOurce l"l.rea
Monthly Flow Total Flow Monthly Average Monthly Flow Total Flow Monthly Average
(gallons) (gallons) (gallons per minute) (gallons) (gallons) (gallons per minute)
786548 7,220,275 18.2 178387 4,102,784 4.1
123013 7,343,288 2.8 178387 4,281,171 4.1
287027 7,630,315 6.6 145526 4,426,697 3.4
452535 8,082,850 10.5 600075 5,026,772 13.9
141936 8,224.786 3.3 410905 5,437,677 9.5
453014 8,677,800 10.5 431360 5,869,037 10.0
504860 9,182,660 11.7 329835 6,198,872 7.6
453131 9,635,791 10.5 473093 6,671,965 11.0
591481 10,227,272 13.7 513868 7,185,833 11.9
471729 10,699,001 10.9 493849 7,679,682 11.4
642213 11,341,214 14.9 498670 8,178,352 11.5
415550 11,756,764 9.6 371824 8,550,176 8.6
361051 12,117,815 8.4 337877 8,888,053 7.8
522107 12,639,922 12.1 384124 9,272,177 8.9
622194 13,262,116 14.4 539925 9,812,102 12.5
704292 13,966,408 16.3 431729 10,243,831 10.0
581688 14,548,096 13.5 388443 10,632,274 9.0
427,905 14,976,001 9.9 409,066 11,041,340 9.5
473,998 15,449,999 11.0 502,412 11,543,752 11.6
226,628 15,676,627 5.2 228,824 11,772,576 5.3
459,303 16,135,930 10.6 820,215 12,592,791 19.0
591,217 16,727,147 13.7 530,478 13,123,269 12.3
464,502 17,191,649 10.8 390,353 13,513,622 9.0
447,951 17,639,600 10.4 543,545 14,057,167 12.6
503,520 18,143,120 11.7 170,316 14,227,483 3.9
95,167 18,238,287 2.2 357,840 14,585,323 8.3
235,556 18,473,843 5.5 335,782 14,921,105 7.8
212,338 18,686,181 4.9 331,270 15,252,375 7.7
485,789 19,171,970 11.2 151,212 15,403,587 3.5
382,997 19,554,967 8.9 300,123 15,703,710 6.9
500,849 20,055,816 11.6 231,991 15,935,701 5.4
284,722 20,340,538 6.6 186,494 16,122,195 4.3
587,633 20,928,171 13.6 84,780 16,206,975 2.0
512,427 21,440,598 11.9 180,071 16,387,046 4.2
769,926 22,210,524 17.8 526,024 16,913,070 12.2
125,989 22,336,513 2.9 261,860 17,174,930 6.1
Total Flow for June 1, 2000 to June 1, 2001 Total Flow for June 1, 2000 to June 1, 2001
3,164,543 1,771,343
upperiLOWer macon
Monthly Flow Total Flow Monthly Average
(gaUons) (gallons) (gallons per minute)
531692 14,798,941 12.3
1051002 15,849,943 24.3
932266 16,782.209 21.6
662272 17,444,481 15.3
876945 18,321,426 20.3 • 448056 18.769,482 10.4
776195 19,545.677 18.0
857122 20.402,799 19.8
821424 21,224,223 19.0
718543 21,942,766 16.6
251141 22,193,907 5.8
713232 22,907,139 16.5
835206 23,742,345 19.3
586579 24,328,924 13.6
1035893 25,364,817 24.0
894763 26,259,580 20.7
828049 27,087,629 19.2
809,334 27.896,963 18.7
582,110 28,479,073 13.5
635,226 29,114.299 14.7
768,831 29,883,130 17.8
894,735 30,777,865 20.7
646,405 31,424.270 15.0
575,397 31,999,667 13.3
261,658 32,261,325 6.1
161,156 32,422,481 3.7
308,952 32,731,433 7.2
416,369 33,147,802 9.6 • 127,597 33,275,399 3.0
607,951 33,883,350 14.1
425,691 34,309,041 9.9
380,931 34,689,972 8.8
919,139 35,609,111 21.3
242,990 35,852,101 5.6
200,354 36,052,455 4.6
145,019 36,197.474 3.4
Total Flow for June 1, 2000 to June 1, 2001
2,922,075
Well Date Chloroform 1,1. Dichloroethane
Number (uglL) (ug/L)
UpJ>Cf Dockery
!'-.fWl5 2/\)/96 <25 22
5/2/96 <25 35
7/31/96 <25 <25
(DUP2) 7/31/96 <25 <25
1 in/96 <25 29
(DUrJ 11n/96 <SO <SO
2/5/97 <25 62
5112197 <JOO <JOO
{DUP2) 5112197 <JOO <JOO
815/97 <JO 17
(DUrLICA TE 1) l l/12/97 <5 II
l l/l 2/97 <JO <10
(DUP I) 2/5/98 <25 <25
2/5/98 <JO <JO
5/6/98 <SO 66
(DUP I) 5/6198 <SO 96
~6198 <JOO <JOO
11/3/98 <SO <SO
2/11/99 <25 <25
5/] 2/99 <25 <25
8/5/99 <25 <25
l \/2199 <JO <10
2/17/00 <10 <10
5/9/00 <JO <JO
80/00 <S.O 5.1
l/18/01 <5.0 5.8
(DUP 1) 1118/01 <5.0 6.5
7/1 l/01 <5 .. 0 II 0
(DUP !) 7/11/01 <5.0 9.9
Remed1a11on Performance Standard 3500
NA • Not Analy;z:ed DL • Dilution
1, l • Dictiloroethene
(ug/L)
280
630
610
'50
1000
1600
1200
'80
''° 330
220
" 200
310
1300
1800
2100
1300
610
750
390
320
90
220
130
\,0
130
160
130
DUP duplieai,
Table 5
Groundwater Quality Summary
Macon/ Dockery Site
Richmond County, :'forth Carolina
Cis/trans-l ,2-Dictiloroethene Methylene chloride Tetrachloroethcne
(ug!L) (ug/1..) {ug/L)
<25 <50 <25
<25 <50 JO
<25 <50 <25
<25 <SO <25
<25 <50 <25
<50 <JOO <SO
<25 <50 <25
<JOO <200 <JOO
<JOO <JOO <JOO
<10 <20 <20
<5.0 <10 <5,0
<JO <20 <10
<25 <50 <25
<JO <20 <10
<50 <JOO <50
<SO <JOO <SO
<JOO <200 <JOO
<50 <JOO <SO
<25 <120 <25
<25 <SO <25
<25 <50 <25
<10 <20 <10
<10 <20 <JO
<JO <20 <10
<5.0 <JO <5.0
<SO <10 <5.0
<5.0 <JO <5,0
<5.0 <10 <5.0
<SO <JO <S.O
70
l. l, I-Trichloroethane Trichloroethylene Vin:,! chloride Benzene Toluene
(ug/1..) (ug!L) {ug/L) (ug/L) {ug/L) • 120 <25 <25 <25 26
170 <25 <25 <25 <25
210 <25 <25 <25 35
160 <25 <25 <25 JJ
290 <25 <25 <25 <25 ,oo <50 <50 <SO <50
380 <25 <25 <25 <25
160 <JOO <JOO <100 <100
160 <100 <100 <100 <100
100 <20 <10 <JO <JO
50 <5.0 <SO <5.0 <5.0
13 <JO <10 <JO <JO
58 <25 <25 <25 420
70 <10 <10 <JO " ''° <50 <SO <50 260
710 <50 <SO <SO 380
730 <JOO <JOO <JOO <JOO
280 <50 <50 <SO <50
100 <25 <25 <25 <25
150 <25 <25 <25 <25
110 <25 <25 <25 <25
76 <JO <10 <JO )3
22 <10 <IO <JO <10
" <JO <10 <JO <JO
26 <5.0 <5.0 <5.0 <5.0
27 <5,0 <5 0 <5,0 <5,0 • 26 <5.0 <5,0 <5.0 <SO
30 <S.O <SO <5.0 <5 0
29 <5 0 <5 0 <5 0 <5 0
200 2.8 1000
Well o,.
Number
Upper Dockery
MW IS 2/13/96
S/2/96
7/Jl/96
(DUP2) 7/31/96
lln/96
(DUP) lln/96
21S/91
5/12197
(DUP2) S/12/97
8/5/97
(DUPLICATE I) 1 !/12/97
11/12/97
(DUP l) 215/98
215/98
5/6/98
(DUP I) 5/6/98
~6198
11/3/98
2/11199
5/12/99
815/99
1112199
2117/00
519100
80/00
l/18IOI
(DUP \) 1/18101
711 !IOI
(DUP I) 7/1 !IOI
Remed1auon Performance Standard
NA ~ Not Analyzed
Tot.al Xylenes
(ug/L)
<75
<75
<75
<75
<75
<150
<75
<JOO
<JOO
<JO
<15
<JO
<75
<JO
<150
<150
<JOO
<!50
<75
<75
<75
<JO
<JO
<JO
<15
<15
<15
<15
<15
Acetone Chromium
(ug/L) (ug/L)
<250 <10
<250 <10
<250 13
<250 <10
<250 <10
<500 <10
260 21
<l000 <10
<l000 13
<100 18
<50 70
<100 46.8
3400 <10
<100 <10
1500 II
2300 <10
<l000 J5
<500 75
<250 71
<250 87
<250 150
<100 65
<100 18
<IQ 66
<50 52
<SO 71
<50 J4
<50 52
<SO 90
3500 50
Table 5 (Continued)
Groundwater Quality Summary
Macon/Dockery Site
Richmond County, North Carolina
Barium Beryllium Manganese Nickel Vanadium
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
150 <5.0 190 <40 <50
160 <5.0 J60 <40 <50
l<0 <5.0 180 <40 <50
140 <S.O 180 <40 <50
l<O <5.0 200 <<O <5 0
l<O <5.0 170 <40 <SO
160 <S.O 270 <40 <50
120 <5.0 2J0 <40 <SO
110 <S.O 170 <40 <50
IJ0 <5.0 120 <40 <50
126 <5 0 2H <40 <50
128 <S.0 255 <40 <50
140 <S.O 100 <40 <50
IJ0 <S.0 120 <40 <SO
150 <S.O 490 <<O <50
l<O <5.0 400 <40 <50
150 <5.0 J20 <40 <SO
150 <5.0 170 <40 <50
220 <5 0 JOO <40 <50
200 <5.0 210 <40 <50
250 <5 0 JI0 41 50
210 <5.0 220 <40 <SO
140 <5.0 91 <40 <SO
180 <5,0 26-0 <40 <50
180 <5.0 220 <40 <50
170 <5.0 190 <40 <SO
160 <S.O 190 <40 <SO
180 <S.O 210 <40 <50
220 <5,0 JOO <40 <SO
1000 50 100 50
Zinc Cadmium Lead Mercury Cyanide Suspended Solids
(ug/L) (ug/L) (ug/L) (ug/L) (mg/L) (mg/L) • J9 <0.30 <3.0 JA <10 7
24 <O JO <J.O 4.0 <10 <5.0
JS <O 30 990 0 0047 :-:A 84
JI <0.30 1070 ,.s :-:A 65
<20 <O 30 4J0 J.5 NA 9
<20 <O JO J40 2.J NA NA
200 24 1100 J.0 NA JO
92 6.J 260 1.6 NA II
89 6 260 1.4 NA 10
67 J 6 510 I.) NA 16
63.7 7.5 867 J.8 NA n
50 2.7 501 1.6 NA 110
28 0 66 160 0.73 NA 10
22 0 J5 l<0 0.66 NA 6
60 0.64 100 0.76 NA )2
59 0 49 8) 0,63 NA 22
J7 " 720 '4 NA JI
48 1.9 960 2.2 NA 100
6J 0.93 ''° 2.5 NA 380
56 0 46 200 2.9 NA 380
84 <O 30 290 20 XA 780
59 0 JJ 55 NA NA '50
<20 <O JO JJ 0.53 NA 40
50 <0,30 81 0 64 NA 240
42 <0.30 69 0 67 NA 190
64 0 61 150 096 NA 91
75 0,97 140 1.20 NA 100
47 <0.30 88 1.20 NA 170
62 <0.30 1)0 1.10 NA 200
5000 15 I.I
0001 s·;: . . 0'1> 0'1> 0'1> 0"1> 0 l> 0'1> 0"1> 0"1> • 0'1> 01> 0"1> 0·1> 0"1> Ol> 0"1> 0"1> 0"1> Ol> 0 l> O'l> 0"1> o· I> 0 l> 0"1> O'l> 0"1> 0"1> 0·1> Ol> O"I> 0 l> 0'1> Ol> 0'1> O'I> 0'[> O'l> 0"1> O'I> O'l> 0 l> 0'1> 0·1> O'l> O'l> 0"1> O'l> O"l> 0'1> Ol> 0·1> O'l> Ol> 0'1> 0·1> O"l> 0·1> Ol> 0"1> 0·1> O'I> 0'1> 0·1> O"I> 0 l> 0'1> O"l> 0'1> 0"1> Ol> O"I> 0'1> 0·1:, 0'1> 0"1> 0'1> 0"1> 0 l> o· I> Ol> Ol> 0·1> Ol> 0'1> ("Ifon) (1.,iin) ("l!iin) ("l!iin) ;u;n(OL ;unu;a ;p!JOIIP J.fo~\ ;u.i1J.ipoJO(lpflL • Oil< . .. 0 l 0'1> 0'1> 0'1> Ol> 0'1> 0"1> 0'1> 0'1> 0"1> 0"1> O"I> O"I> 0"1> 0"1> 0·1> O'!> O'!> 0'[> O'l> '' (1fiin) ;u11tp~o11pu L • I ' I"\ . OL 0·1> OZ> 0"1> 0·1> O'Z> O"l> 0·1> O'Z> 0"1> 0"1> O'Z> 0·1> 0·1> OZ> O"I> 0·1> 0'Z> O"I> 0·1> O'Z> o·t> 0·1> O'Z> O"I> O"I> OZ> 0'1> 0"1> O'Z> Ol> O"I> o·z> 0'[> 0"1> O'Z> Ol> 0·1> 0 Z> O'(> O"\> O'Z> 0"[> 0"1> OZ> O"l> O"I> o·z> 0"1> 0"1> O'Z> O"I> 0'1> OZ> 0·1> 0'1> O'Z> 0·1> Ol> O'Z> 0·1> 0"[> o·z> 0'1> (,fe"n) ("Ifon) ("Ifon) ;u;ipoJ011pvJ1; L ;pµo11p ;u.i1J.~n ;u=iipo,0111:i!a·z· 1 ·=tt!J BU!fOJ'BJ qJJO!I,; '.{ltinOJ puowq::im 31!S .h.npO(J fUOJ'BJ-\1 AJ"Bwwns AJ!JBnQ J31"BM.punoJ9 s: 31q'B.l >l~IJdnp· ,1n(l QOI[ 00/1/1 Ol> o·z o·t> O't> 0'(> Ol> O'l> 0·1> 0"[> O"l> o·t> Ol> Ol> O"\> 0"1> 0·1> 0·1> 0·1> O't> O"I> 0'1> 0 l> O't> '' Ol> 0·1> 0'[> 0"1> Ol> O'l> O'(> ,., 0'(> 9 l Ol> Z l O"I> 0"[> 0·1> 0"[> " (1.,iin) ("l!iin) ;iu=itp~o14:11a • 1·1 '1UVl(PQJOll!:>•a · I' I uo!1n1ia .. ,a 0"1> 0'1> 0'1> 0'1> O'I> 0'1> 0"1> 0"[> 0'1> 0"1> 0·1> 0"1> 0·1> 0·1> 0·1> 0'1> 0"1> 0'1> O'!> 0"1> 0"1> ("Ifon) UUOJOJOll!J pn.(1vuy 10:,,.,:: ~ VS pnpll21S ;:,uvWJOJJ.>d uo~mp:,w;,11 IO/OVL (0/8(/1 00/(18 00/6/S 00/llfl 66r<./J[ 66/S/8 661<:I/!, 66/11/c'. 86/(11 ! 86/918 86/LIS %/Sn l6/Zl/l I l6/S/8 l6/£1/S l6/Sn 96/Ul I 96/1 f./l 96/VS %/On sz ,\\}\'. .\..l;,~Xl(] =!do .1.1qwn:,.: ••a IP,'t\
Well Dare
Number
Upper Dockery
~IW25 Z/13196
512/96
7/3!/96
\ln/96
Z/5197
5/IJ/97
&15/97
11112/97
Z/5/9&
5/7/9&
Y6/98
\ l/319&
Z/11199
5112/99
8/5/99
l l/2/99
Z/17/00
S1'!/00
8/3/00
!11&/0l
7/2010]
Remed,a11011 Perfornui.nce SWldard
NA ~ Not Analyzed
Total Xylenes
(ugll.)
<3.0
<3.0
<3,0
<3.0
<3.0
<J.O
<J.O
<J.O
<3.0
<3.0
<3.0
<J.O
<3.0
<3,0
<J.O
<3,0
<3 0
<3.0
<3.0
<3.0
<J.O
Acetone Chromium
(ugll.) (ugll.)
<IO <IO
<IO IO
<IO <IO
<IO <IO
<IO <IO
<IO I)
<IO 2S
<IO <IO
<IO <IO
<IO <IO
<IO <IO
<IO II
<IO <IO
<IO <IO
<IO <IO
<JO <IO
<IO 1600
<IO 1900
<IO 40
<IO 16
<IO <JO
3500 50
Table 5 (Continued)
Grouod,,,ater Quality Summar)'
~lacon/Dockery Site
Richmond Counh·, North Carolina
Barium Beryllium Manganese Nickel Vanadium
(ugll.) (uglL) (ugll.) (ug/L) (ugll.)
160 <5.0 ISO «o <50
IJO <5 0 " «o <50
1)0 <5.0 57 «o <50
140 <5 0 110 «o <50
120 <5.0 77 «o <50
110 <5.0 " «o <50
190 <5.0 140 «o <50
114 <5,0 26 <40 <50
IJO <5.0 49 <40 <50
1)0 <5.0 16 «o <50
120 <5.0 I) <40 <50
170 <5.0 86 ''° <50
150 <5.0 56 <40 <50
IJO <5.0 33 «o <50
160 <50 62 <40 <50
120 <5.0 15 "' <50
S60 <5.0 820 260 79
400 <5.0 500 JJO 60
200 <5,0 150 «o <50
I 70 <5.0 190 <40 <50
120 <5.0 13 "' <50
1000 50 100
• Zinc Cadmium Lead Mercury Cyanide Suspended Solids
(ug/1.) (ug/L) (ug/L) (ug/L) (mg/L) (mg/I,)
22 <0.30 <3 0 NA <IO H
28 <0,30 <3,0 NA <IO 16
<20 <0.30 <3 0 NA NA 23
20 <O 30 <3.0 NA NA " J2 <0 JO <3.0 NA NA <5,0
<:!O <0,30 <J.O NA NA 15
45 <0.30 4 3 NA NA 150
22.8 <I <3.0 NA NA 12
<20 <0.30 <J.O NA NA 33
<20 <O 30 <3 0 NA NA II
<20 <O JO 96 NA NA 5
<20 <O JO <3 0 NA NA 55
<20 <O JO 5.0 NA NA 39
<20 <O JO <3 0 NA NA 17
20 <O JO 3.7 NA NA 42
<20 <O JO <3 0 <0,20 NA IO
140 040 no <O 20 NA 910
200 <0.JO 190 NA N,\ 1100
41 <O JO 4.4 NA NA 150
52 0.66 <3,0 NA NA 21
25 <O JO <3 0 NA NA 6
5000 IS I.I
Well Date Chlorofonn I ,I -Diehloroethane
N"umber (ug/L) (ugfl.)
Lower Dockery
MWl6 :?/13196 <1.0 57
512196 <l.0 56
1131196 <l.0 41
l ln/96 <1.0 37
(DU"F') lln/96 <1.0 32
'115191 <1.0 '1
5/13/97 <1.0 48
8/6/97 <2 0 40
11/12197 <1.0 51
:?/5/98 <l.0 68
5/6/98 <1.0 20
816/98 <1.0 22
l l/J/98 <J.0 25
2/11199 <1.0 14
5/12/99 <2.0 ll
8/6199 <1.0 ll
1112/99 <1.0 15
2/17100 <1.0 20
5/8/00 ...
Sn/00 ...
1/18/01 ...
7/11/01 <1.0 10
I I
Rcmed1auon Pcrfonnancc Standard 3500
NA"' Not Analyzed DL • Dilution
J, l -Dich!oroethene
{ug/L)
29
29
23
2'
19
24
32
18
27
21
6.9
5.7
ll
6.5
SA ,,
6.7
5
Well
Well
Well
23
I
Table 5
Groundwater Quality Summary
Macon/ Dockery Site
Richmond Countv, i''forth Carolina
Cis/u-ans-1,2-Dichloroethene Methylene chloride T etrachlorocthene
{ug/L) {ug/L) {ug/L)
<1.0 <2.0 <l.0
<l.0 <2.0 <10
<l.0 <20 <1.0
<l.0 <20 <1.0
<1,0 <2,0 <1.0
<J.0 <20 <1.0
<!.0 <2,0 <1.0
<2.0 <40 <2 0
<l.0 <2,0 <1.0
<1.0 <2 0 <l.0
<1.0 <2 0 <1.0
<!.0 <2,0 <1.0
<!.0 <2 0 <1.0
<l.0 <20 <l.0
<2,0 <4,0 <2.0
<1.0 <2.0 <1.0
<1.0 <2 0 <1.0
<l.0 <2,0 <1.0
Not Sampled Due To
Not Sampled Due To
Not Sampled Due To
<1.0 <20 <l.0
I I
70
• 1, I, I-Trichloroethane Trichlorocthylcne Vinyl chloride Benzene Toluene
(ug/L) (ug/L) {ug/L) (uw!-) (ug/L)
68 ' <1.0 <10 <l.0
73 3 8 <1.0 <l.0 <10
50 22 <1.0 <l.0 <l.0
50 26 <l.0 <!.0 11
'2 2 <1.0 <1.0 2
59 " <1.0 <l.0 <1.0
75 3 2 <1.0 <1,0 <1.0
63 2.1 <2 0 <2 0 <2 0
10 3.9 <10 <l.0 <1.0
52 23 <1.0 <1.0 <l 0
36 1.9 <1.0 <1.0 <1,0
31 12 <1.0 <I .0 <1.0
38 <1,0 <l.0 <1.0 <1,0
21 <l.0 <J,0 <1.0 <1,0
29 <2,0 <1.0 <2,0 <1 0
20 <1.0 <1.0 <l.0 <l.0
19 <10 <1,0 <10 <1,0
18 <l.0 <1.0 <1.0 <l 0
Obstruction ...
Obstruction . ..
Obstruction ...
2.8 H <1.0 <10 <1.0
I I I I I • 200 2S 1000
Well Date
Number
Lower Dockery
MW16 1113196
S/2/%
7/31/96
ltn/96
(DUP) 11n/96
115/97
5/13197
816197
11/12197
115/98
5/6/98
8/6/98
I \(3198
1111199
5/12/99
816199
11/2/99
1117/00
5/8/00
8/3/00
1/18/0]
7/11/01
Remed,auon Performance Standard
NA-Not Analyzed
Total Xylcncs
(ug/L)
<3,0
<3.0
<3.0
<3.0
<3.0
<3.0
<J.O
<6.0
<J.O
<3.0
<J.O
<J.O
<3.0
<J.O
<60
<3.0
<3.0
<J.O ... ... ...
<3.0
,oo
Acetone Ch.romium
(ug/L) (ug/L)
<lO " <lO " <JO ISO
<JO 95
<JO 89
<JO " <10 33
<20 160
<10 94.8
<JO <JO
<JO 92
<JO 41
<JO 29
<JO " <20 53
<JO \<O
<JO 95
<JO 110
<JO 120
I I I
3500 so
Table 5 {Continued)
Groundwater Quality Summary
Macon/Dockery Site
Richmond County, North Carolina
Barium Beryllium Manganese Nickel Vanadium
(ug/L) (ug/L) {ug/L) (ug/L) (ug/L)
,10 <5.0 1100 61 100
310 <5.0 1300 70 !20
1100 <5.0 5100 '60 490
830 <5,0 3200 160 270
780 <5.0 2800 160 250
170 <5.0 670 ,1 62
190 <5,0 810 52 77
890 6.2 4300 '" <50
633 <5,0 3190 153 265
<SO <5.0 36 «o <50
510 <5.0 2400 \,0 210
230 <5,0 970 62 87
160 <50 640 46 56
240 <5,0 1100 68 98
'60 <50 1300 78 I lO
700 5.\ 3700 210 330
'80 <50 2500 MO 230
390 <5.0 1900 \<O 170
Well N9' Sampled Due To
Well Not Sampled Due To
Well Not Sampled Due To
64 <5,0 230 <<O " I I I I
1000 50 100 50
Zinc Cadmium Lead Mercury Cyanide Suspended Solids
(ug/L) (ug/L) (ug/L) (ug/L) (mg.IL) (mg/L)
150 <0.30 II NA <JO 2000
150 <O 30 12 NA <JO 1800
660 0.94 62 NA 1'.'A 5300
390 0.47 38 NA " 2100
3'0 0.45 '4 NA NA NA
I 10 <O 30 9.9 NA ;,.;A 360
92 <0.30 II NA :,.;'A 560
530 <O 30 45 NA NA 2500
362 <J 29 NA :,.;'A 1900
29 <O 30 8.7 NA NA 5,0
300 <OJO " NA :>:A 1600
120 <0.30 II NA NA 490
96 <OJO ,., NA NA 270
MO <0.30 90 NA NA '80
160 ,.1 9.0 NA NA 740
430 <OJO 33.0 NA NA 1600
290 <0,30 200 NA NA 1300
'70 037 IS 0 " NA 1100
Obstruction ...
Obstruction ...
Obstruction ...
250 19 5.7 NA NA 1600
I I I I I I • 5000 15 LI '"
Well Date Chloroform 1,1 • Diehloroethane 1,1 • Dichloroethene
Number {ug/1.) (ug/1.) (ug/1.)
Lo,,,er Dockery
;-.{W24 2/lJ/96 <1.0 " <l.O
(DUP) 2113196 <1.0 ,., <10
S/'1196 <1.0 7.S <1.0
8/1/96 <1.0 3.7 '·' tln/96 <J.O 7.1 <1.0
2/S/97 <l.O 26 <1.0
S/13/97 <1.0 16 <1.0
S/5/97 <1.0 17 <1.0
11/12/97 <1.0 19 <1.0
2/5/98 <l.O 32 <1.0
5/6/98 <1,0 24 <1.0
816198 <1.0 JO <l.O
Jln/98 <1.0 )) <1.0
2/11199 <1,0 24 <1.0
5/12/99 <1.0 29 <1.0
816/99 <l.O 27 <1.0
11/2199 <1.0 16 <1.0
2/17/00 <l.O 33 <1.0
S/9/00 <1.0 28 <1.0
SD/00 <1,0 16 <1.0
1/18101 <10 23 <1.0
7/11/01 <1.0 " <1.0
Remed1at1on Performance Standard JSOO
NA= Not Analyzed DL • Dilution DUP dnphca~
Table S
Groundwater Quality Summary
Macon/ Dockery Site
Richmond County ~ortb Carolina
Ci~traru-1,2-Dichloroethene Melhylcne chloride Tetrachloroethene
{ug/1.) (ug/1.) {ug/1.)
<1.0 <20 <l.O
<1.0 <2.0 <1.0
<1.0 <2.0 <1.0
" <2.0 '·' <1.0 <2.0 <1.0
<1.0 <20 <1.0
<1.0 <2.0 <1.0
<l.O <2 0 <1.0
<1.0 <20 <1.0
<l.O <2.0 <1.0
<10 <2,0 <1.0
<1.0 <20 <l.O
<1.0 <2.0 <1.0
<1.0 <20 <1.0
<1.0 <2 0 <1.0
<1.0 <2 0 <1,0
<1.0 <20 <1.0
<1.0 <2.0 <1.0
<1.0 <2.0 <1.0
<1.0 <2.0 <1.0
<1.0 <2.0 <1.0
<1.0 <20 <1.0
70
I, 1,1-Trichloroelhane
(ug/1.)
<LO
<1.0
<1.0
1.7
<1.0
<l.O
<1.0
<1.0
<l.O
<1.0
<l.O
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
2110
• Trichloroelhylene \'inyl chloride Benzene Toluene
(ug/1.) (ug/L) (ug/1.) (ug/L)
<1.0 <1.0 <l.O <1.0
<1.0 <1.0 <1,0 <l.O
<1.0 <1,0 <1.0 <1.0
20 <1.0 <1,0 <1,0
<1.0 <l.O <1.0 12
<1.0 <10 <1.0 <1.0
<!.O <1.0 <1.0 <1.0
<1,0 <LO <1.0 <1.0
<!.O <1.0 <1.0 <1.0
<!.O <1.0 <1.0 <1.0
<1.0 <10 <1.0 <1.0
<1.0 <1.0 <1,0 <1.0
<1,0 <1.0 <1.0 <1.0
<!.O <1.0 <1.0 <1.0
<1,0 <1,0 <1.0 <1.0
<!.O <1.0 <1.0 <1.0
<l.O <1.0 <1.0 <1.0
<1.0 <1.0 <1.0 <1.0
<1.0 <1,0 <1.0 <1.0
<1.0 <10 <1.0 <1.0
<l.O <!.O <1.0 <1.0
<1.0 <1.0 <1.0 <1.0 • 2.8 11100
Well Date
Number
Lower Dockery
M\\/ 24 2/!J/96
(DUP} 2/13/96
Sfl/%
8/1/96
11n/96
2/S/97
5/1 J/97
8/5/97
l 1/l 2197
2/5/98
516198
8/6/98
11/3/98
2/11/99
5112/99
8/6199
11/2/99
2/17/00
S/9/00
80/00
1118/01
7/11/01
Remediation Performance Standard
NA ~ Not Analyzed
Total Xylcncs
(ug/L)
<J.O
<3,0
<3.0
<J.O
<3 0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3,0
<3.0
<3.0
<3.0
<3,0
400
Acetone Ch.romium
(ug/L) (ug/L)
<JO 56
<JO 51
<JO <JO
<JO <JO
<JO <JO
<JO <JO
<IO <JO
<JO <JO
<JO <JO
<JO <JO
<JO <JO
<JO <JO
<JO 38
<JO 20
<JO <JO
<JO <JO
<JO 10
<JO <JO
<JO II
<JO 56
<JO <JO
<JO <JO
3500 50
Table 5 (Continued)
Groundwater Quality Summary
Maconffiockery Site
Richmond Countv, North Carolina
Barium Beryllium Manganese Nickel Vanadium
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
320 <5.0 3500 40 130
370 <5.0 3700 <'0 140
65 <5.0 2400 <40 <SO
86 <S.O 2500 <40 <SO
82 <5.0 2700 <40 <50
94 <S.O 2500 <40 <SO
89 <5.0 2500 <40 <SO
92 <5.0 <5.0 <40 <SO
140 <5.0 2480 <40 <SO
79 <5,0 2800 <40 <50
130 <5.0 2500 <40 <SO
110 <S.O 2'00 <,O <50
3 JO <5.0 3000 <40 " 190 <5,0 2800 ''° <50
110 <5.0 2500 <40 <50
ISO <5.0 2500 ''° <SO
16-0 <5.0 2400 <40 <SO
120 <5.0 2500 <40 <SO
16-0 <5.0 2500 <40 <SO
180 <S.O 2500 <40 <SO
120 <5.0 2'00 <40 <50
<5.0 2200 <,O <50
1000 so 100 so
• Zinc Cadmium Lead Mercury C~·anide Suspended Solids
(ug/L) (ug/L) (ug/L) (ug/L) (mg/L) (mg.'L)
230 <0.30 32 NA <IO 1100
250 <O 30 28 NA 19 JOOO
<20 <0,30 <J.O NA <JO 15
25 <O 30 <3.0 NA l\A 79
<20 <0,30 <3 0 NA l\A 58
<20 <O 30 <3.0 NA NA " <20 <O JO <J.O NA NA 82
20 <0.30 <3.0 NA NA 28
481 <I 4.3 NA NA 150
<20 <0.30 3.8 NA NA I]
30 SO 30 4.7 NA NA 91
<20 <0.30 4.5 NA NA 57
140 13 14 NA NA 590
68 <0.30 8.1 NA NA 16-0
28 <0.30 <3.0 NA NA 30
42 <OJO 5.5 NA NA 130
" <O 30 4.5 NA NA 130
<20 <0.30 <3.0 NA NA 81
41 SO 30 <3.0 NA NA 100
80 <0.30 6,2 NA :,;,>. no
<20 <0.30 <3.0 NA NA 66
<20 <0.30 <J.O NA NA 26 • 5000 IS LI
Well Date
Number
Macon Source Area
~f\\'lA U!J/96
512196
(DUP) 5111%
7131/96
11/6196
2/4/97
5/l 2197
8/6/97
(DUPLICATE 2) l !II 2.197
11/12/97
2/5/98
S/6198
(DUP l) 5/6198
sn/9s
(DVP-2) sn/9s
J l/4/98
(DUP-2) 11/4198
2110/99
(DUP-2) VI0/99
5113199
(DUP-2) 5/13/99
816199
(DUP-2) 816199
11/3/99
(DUP-2) 11/3/99
2117/00
{DUP-2) 2117/00
5~/00
(DUP-2) 5/8/00
8/2JOO
(DUP-2) 8/2JOO
l/17/01
{DUP-1) 1/17/01
7/11/01
(DUP-2) 7/11/01
Rcmed,auon Performance Standard
NA= Not Analyzed
Chloroform
{ug/1...)
<LO
<1,0
<1.0
<!.O
<1.0
<1.0
<1.0
<2.0
<2.0
<2,0
<5.0
<5,0
<5.0
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<25
<JO
<JO
<JO
DL = Dilution
l, l -Dichloroethane 1, 1 • Diehloroethene
(ug/L) (ug/L)
3.6 20
2.8 ]]
3.4 18
II <1.0
) ' 2.7 53
1.8 36
<2.0 JS
<2,0 " <2.0 61
<5.0 110
6., 170
5.8 '" <25 ''° <25 380
<25 680
<25 7,0
<25 750
<25 ,oo
<25 870
<25 880
<25 6)0
<25 750
<25 650
<25 710
<25 630
<25 610
<25 7<0
<25 730
<25 '60
<25 ''° <25 ,oo
<JO 370
]9 370
19 320
)500
DUP dupfao.otc
Table 5
Groundwater Quality Summary
Macon/ Dockery Site
Richmond County :'l.orth Carolina ,.
Cis/trans-l .2-Diehloroxthenc Methylene chloride T etraehlorocthene
(ug/L) (ug/L) (ug/L)
SA <2.0 <l.O
7.7 <;2,0 <JO
9.3 <2 0 <1.0
<1.0 <2.0 <1,0
I) <2,0 23
" <2,0 27
l.7 <2.0 <l.O
<2 0 <,0 <2.0
<2.0 « 0 '·' <2.0 <4,0 3 6
5,2 <JO " 16 <JO 22
I) <JO 21
<25 <50 <ZS
<25 <50 <25
<25 <50 29
<25 <50 ))
<25 <50 80
<25 <50 37
<25 <50 62
<25 <50 56
<25 <50 " <25 <50 55
<25 <50 ,1
<25 <50 " <25 <50 " <25 <50 " <25 <50 " <25 <50 JS
<25 <50 " <25 <50 " <25 <120 38
<JO <20 35
<JO <20 " <JO <20 " 70
l. I. I-Trichloroethane
(ug/L)
7A
,.1
6.5
<l.0
u
1.6
S.S
96
16
" 23
36
38
78 ..
93
110
ll0
85
150
150
110
ll0
99
]Oil
87
87 ..
61
61 ..
52
" 51
53
200
Trichloroethy!cnc Vinyl chloride Benzene Toluene
(ug/L) {ug/L) (u&fl.J (ug/L)
22 <1.0 <1,0 <\.O
20 <1.0 <JO <1,0 • 26 <JO <1,0 <JO
<1,0 <1.0 <JO <1.0
21 <!.O <1.0 <1,0
19 <1,0 <1.0 <1,0
12 <JO <1,0 <1.0
' <2 0 <2 0 <2,0
9.2 <20 <2,0 <20
" <20 <2 0 <2 0
12 <SO <5,0 <SO
20 <5,0 <SO <5,0
21 <5 0 <5 0 <SO
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
25 <2S <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25 • <25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<25 <25 <25 <25
<JO <JO <JO <JO
10 <JO <10 <JO
II <JO <JO <JO
28 1000
Well Date
Number
Macon Source Area
MW2A 2/13/96
5121%
(DUP) S/2/%
7/J\/96
11/6196
214/97
5/12/97
8/6197
{DUPLICATE 2) 11/12/97
\ \I] 2/97
2/5/98
5/6/98
(OUP2J S/6/98
Sn/98
(DUP-2) sn/98
11/4198
(DUP-2) 11/4198
2/10/99
(DUP-2) 2/10/99
S/IJ/99
(DUP-2) 5/lJ/99
~6199
(DUP-2) 8/6199
I 1/3199
(DUP-2) 11/3199
2/17/00
(DUP-2} 2/17/00
5/B/00
(DUP-2) 5ra/OO
812/00
(DUP-2) 8/2/00
l/17/01
{DUP-2) 1/17/01
7/11/01
{DUP-2) 7/11/01
Remcdiat1on Performance Standard
NA~ :--ot Analyiccd
Total Xy!enes Acetone Chromium
(ug/L) (ug/L) (ug/L)
<),0 <JO <JO
<3.0 <JO <JO
<J.O <JO <JO
<J.O <JO <]O
<J.O <JO <JO
<J.O <JO <JO
<J.O <JO <JO
<60 <JO <JO
<6,0 <20 <JO
<60 <20 <JO
<IS <SO <JO
<15 <50 <JO
<IS <SO <JO
<75 <250 <JO
<75 <250 <JO
<75 <250 <JO
<75 <250 <IO
<75 <250 <JO
<15 <250 <JO
<15 <250 21
<15 <250 <JO
<75 <250 <JO
<75 <250 <JO
<15 <250 <JO
<15 <250 <JO
<75 <250 <JO
<75 <250 <JO
<15 <250 13
<15 <250 27
<15 <620 <JO
<75 <620 13
<50 <250 <JO
<JO <100 <JO
<JO <100 <JO
<JO <100 <JO
3500 so
Table 5 (Continued)
Groundwater Quality Summary
:\-lacon/Dockery Site
Richmond Countv :\'orth Carolina ·' Barium Beryllium Manganese Nickel Vanadium
(ug/1..) (ug/L) (ug/L) (ug/L) (ug/L)
190 <5,0 "' <40 <SO
150 <5.0 26 <40 <50
l<O <5,0 19 <40 <50
120 <S.O 25 <40 <50
110 <5.0 13 <40 <50
100 <5.0 <5.0 <40 <50
" <5.0 6 <40 <50
100 <5.0 67 <40 <SO
]OJ <S.O 25,3 <40 <50
106 <5,0 41.4 <40 <SO
110 <S.O 68 «o <50
120 <5,0 <5.0 <40 <50
120 <S.O <5,0 <<O <50
110 <5,0 5.S <40 <50
110 <S.O <50 <40 <50
120 <5,0 <5.0 <40 <50
130 <5.0 <5,0 <40 <50
130 <S.0 <5,0 <40 <50
130 <5,0 <S.0 <40 <50
130 <5 0 12 ''° <50
120 <5,0 9.0 <40 <50
130 <5 0 S.7 <40 <50
130 <S.O <S.O <40 <50
120 <5.0 <5.0 ''° <50
120 <5,0 <5.0 <40 <50
130 <5.0 <5,0 <40 <SO
130 <S.O <5,0 <40 <50
140 <5.0 8.8 <40 <50
l<O <5.0 48.0 <40 <50
130 <5.0 5.8 <40 <50
130 <5.0 S.6 <40 <50
2)0 <5.0 JO 0 ''° <50
180 <5.0 84 <40 <50
150 <S.O 10.0 <,0 <SO
150 <5.0 6.1 <40 <50
IOOO 50 100 50
Zinc Cadmium Lud ~tercury C)·anidc Suspended Solids
{ug/L) (ug/L) (ug/L) {ug/L) {mg/L) (mg/L)
H <O.JO <JO NA <JO " <20 <O JO <J.O NA <JO 7 • <20 <0.JO <J.O NA <JO 7
31 <O 30 <J.O NA NA 15
<20 <0.30 <J.O NA NA <50
-::20 <O JO <J.O NA NA NS
<20 <O 30 <J 0 NA NA <SO
<ZO <O 30 <J.O NA :-.·A <5,0
<20 <I <3.0 NA NA 9
<20 <I <J.O NA NA 8
<20 <OJO 8.8 NA NA <50
<20 <O JO <3,0 NA NA 8
<20 <O JO <J.0 NA :-IA <50
<20 <0.JO <J.O NA NA <50
<20 <0.30 <3,0 NA :-,;A <5.0
<20 <0.30 <3,0 NA NA <S 0
<20 <O JO <3,0 NA NA <SO
<20 <0.30 <3.0 NA NA <50
35 <0.30 <3,0 NA NA 5.0
82 <0.30 <3.0 :-,;A NA 6.0
22 <0.30 <J.O NA NA 6.0
24 <0.30 9.1 NA NA <5.0
72 <03.0 6.9 NA NA <5,0
" I.I <3,0 NA NA <S 0
H <0.30 <3.0 NA NA <50
<20 <OJO <3.0 NA :-,;A <S.O
<20 <O JO <3.0 NA NA 50
21 <0.30 <3.0 NA NA 13,0 • "' <O 30 <3,0 NA NA 280
20 <O 30 <J.O N"A NA 90
52 <0,30 <3.0 NA NA <S.O
H <0,30 <3.0 NA NA 80
24 <O 30 <3.0 NA NA 8.5
" <O 30 <3,0 NA N.-\ 12 0
31 <0,30 <3.0 NA NA <5,0
5000 15 I.I 15'
Well Date
Number
~facon Source Arca
MW9 2113/96
517J96
7/31/96
(DUP) 7/3 !/96
1116/96
215/97
5/12197
816/97
11/12197
(DUP2) 215/98
215/98
5/6/98
sn/98
(DUP-1) sn/98
11/3/98
l 1/3/98
2/10/99
(DUP-1) 2/10199
5/13/99
(DUP-1) 5/\J/99
8/5/99
(DUP-l) 8/5199
11/2.199
(DUP-1) I 112199
2/17/00
(DUP-1) 2117/00
518/00
(DUP-1) 5/S/00
8/J/00
(DUP-1) 8/JfOO
!/17/01
7/11/0]
{DUP-1) 7/11/01
Remcdu111on Performance Standud
NA~ Not Analrzed
Chloroform 1,1 -Dichloroethane
(ug/L) (ug/L)
<!.0 120
<1.0 \JO
<JO 250
<JO 190
<5.0 170
<1.0 76
<2.0 80
<20 56
<l.0 " <50 ISO
<JO JOO
<JO 6)
<5.0 90
<JO 59
<JO 62
<JO 56
<5.0 75
<JO 71
<JO 7)
<JO 80
<JO " <JO 47
<25 <25
<25 <25
<25 <25
<25 <25
<25 <25
<25 <25
<25 <25
<25 <25
<2.0 71
<2.0 55
<5.0 9,9
,500
DL "' Dilution
\,\ -Dichloroc,thene
{ug/L)
<JO
<JO
<JO
<JO
<5,0
8.2
52
22
))
12
<JO
" 1'0
110
160
200
110
ISO
270
220
160
ISO
580
560
520
510
510
530 ,oo
,10
" " \JO
DUP ci"?lic.a1c,
Table 5
Groundwater Quality Summary
Macon/ Dockery Site
Richmond County North Carolina
Cis/trans-1.2-Dichloroethene Methylene chloride T etrachloroethene
(ug/L) (ug/L) (ug/L)
25 1, 16
160 <20 <JO
340 <20 18
320 <20 <JO
JOO <JO <5.0
JJ <2.0 LS
59 <.i.o 6,9
" <4.0 6.6
" <20 12
J JO <JO <5.0
210 <20 <JO
250 <20 16
)50 <JO 27
JJO <20 20
JOO <20 22
280 <20 2)
\JO <JO JS
160 <20 18
250 <20 JO
200 <20 22
\,0 <20 17
150 <20 " no <SO 49
340 <SO " 250 <SO SJ
2<0 <SO 48
220 <50. 69
200 <50 4'
190 <SO 56
180 <SO 59
19 <:4,0 JJ
5.1 <4.0 JO
<5.0 <JO <S.O
70
I, 1, I-Trichloroethane Trichloroc,!hylene Vinyl chloride Benzene Toluene
(ug/L) (ug/L) {ug/L) (ug/LJ (u~)
<JO JO )5 <JO <JO
<JO 23 160 <JO <JO • <JO " 190 <JO <JO
<JO 21 JOO <JO <JO
7 11 7,5 <5.0 <50
2.6 u 4,2 1, <1,0
12 7) 9 <2 0 <20
1., '' " <1.0 <10
II 9,5 16 <JO <l.0
6 )9 100 <5.0 <5,0
<JO " " <JO <JO
<JO 65 20 <JO <JO
)6 " 30 <5.0 <50
28 )I 19 <JO <JO
27 )2 19 <JO <JO
JO )2 <JO <JO <JO
19 22 )2 <SO <50
" " 26 <JO <JO
" 34 25 <JO <JO
" 27 26 <JO <JO
34 18 29 <JO <JO
,1 22 26 <JO <JO
98 " <25 <25 <25
JOO " <25 <15 <25
98 " <25 <15 <25
88 )9 <25 <25 <25
89 )9 <25 <15 <25 • " )6 <25 <15 <25
72 36 <25 <25 <25
" 35 <25 <:25 <25
'·' 5,6 " <2,0 <:20
),7 ) 6 JO <20 <:2,0
29 <5.0 <50 <5.0 <5,0
200 28 1000
Wdl Date
Number
~tacon Source Area
~f\l,'9 2/13196
5('J96
7/J 1196
(DUP) 7/Jl/96
l 1/6/96
215/97
5/!2197
8/6/97
11112197
(DUP2) 215/98
215/98
S/6198
sn/98
(DUP-l) 8/7/98
11/3/98
I I/J/98
VIOl9'J
(DUP-1) V\11199
5/13199
(DUP-1) S/13199
~5199
(DUP-1) 8/5199
1112199
(DUP-1) I 112199
2/!7/00
(DUP-l) 2117/00
51-
(DUP-1) 5/8/00
8/J/00
(DUP-1) 8n/OO
1/17/01
7/11/01
(DUP-1) 7/11/01
Remed1auon Performance Standard
NA~ Not Anal~·zed
Total Xyknes
(ug/L)
<JO
9.8
<JO
<JO
13
9.5
<60
<6,0
<3.0
<15
<JO
<JO
<15
<JO
<JO
<JO
<15
<JO
<JO
<JO
<30
<JO
<75
<75
<75
<75
<75
<75
<75
<75
<60
<60
<15
400
Acetone Chromium
(ug/L) (ug/L)
l60'FJ2 1200
190 JOO
<IQ 210
120 170
220 47
100 26
<20 68
89 160
<JO 75.7
<50 " <100 J9
<100 JI
<50 15
<100 <JO
<JOO 7J
<JOO 69
<JO 16
<JO 18
<100 58
<JOO 52
<JOO 8)
<100 41
<250 6)0
<250 1200
<250 )20
<250 270
1100 69
<250 66
<620 260
<620 290
<20 )8
<20 66
<50 90
J500 50
Table 5 (Continued)
Groundwater Quality Summary
Macon/Dockery Site
Richmond County i"i"orth Carolina
Barium Beryllium Manganese Nickel Vanadium
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
WIO 6.1 7800 1800 500
JJOO <5.0 5600 520 '" IJOO <5.0 J900 290 78
1100 <S.O 4700 2)0 61
5)0 <:5.0 5100 " <50
810 <50 <900 60 <50
1100 <5.0 J900 <40 <50
1800 <5.0 5000 J60 67
1070 <5,0 4'00 162 <50
690 <50 4900 88 <50
810 <5.0 5000 82 <50
760 <S.O 7900 " <50
900 <5.0 6800 61 <50
660 <5.0 5800 54 <50
\JOO <S.O 5JOO 190 <50
1200 <S.O 5800 180 <50
590 <5.0 3700 49 <50
570 <S.O J600 49 <50
1200 <S.O JIOO I IO <50
'" <5.0 )200 100 <50
1700 <S.O ,ooo 200 <50
990 <5.0 ,100 I IO <50
2200 <5.0 520 680 110
3400 <5,0 950 1200 220
1600 <5.0 JOO "' 66
1,00 <S,O 260 J50 59
650 <5.0 85 "' <50
590 <5.0 " 77 <50
1400 <5.0 260 J\O 54
1500 <5.0 290 340 61
1700 <5,0 5600 95 <50
1200 <50 4900 120 <50
220 <5.0 JOO <40 <50
1000 50 100 50
Zinc Cadmium Lead Mercury Cyanide Suspended Solid5
(ug/L) (ug/L) (ug/L) (ug/L) (mg/L) (mg/L)
790 2.6 15 NA <10 890
210 <0,30 12 NA <IO 1700
'" <0.30 12 NA NA 8)0
IJO <0.30 9.6 NA NA '" )) <O 30 <3.0 NA NA 260
" 2 <J.O NA NA '" 51 <0,30 J.5 NA NA 490
170 LS 3.5 NA NA 750
81.-1 " <3,0 NA NA 600
)9 <O 30 5 J NA NA 2'0
)6 <0.JO J7 NA NA 210
26 <O 30 <J.0 NA NA 61
JO <OJO <J.O NA NA )9
<20 <O JO <3.0 NA NA 34
79 0.70 <J.0 NA NA 180
" 0.50 <3.0 NA NA 270
JO <O JO <3.0 <0.20 NA 100
29 <O.JO <J.0 <0,20 NA '" 56 0.39 <3,0 <0.20 NA 220
59 0.30 <J 0 <0,20 NA 250
8) 0.79 <3.0 <0.20 NA 270
52 0.36 8 <0.20 NA 220
210 <0.30 lO 0,59 NA 1900
J60 0.39 15 058 NA 1600
120 <O 30 5.2 0,7J NA !200
99 <O 30 4,2 061 NA \\(IQ
42 <O 30 <3.0 0.26 NA " • 62 <0.30 <3.0 0.31 NA !20
120 <0.30 6.0 LI NA 510
130 <0.30 62 0.97 NA 570
52 l. 10 <J 0 <0,20 NA 470
79 0.46 3.2 NA NA ]80
62 <O JO 130,0 LI NA 200
5000 LI
Well Date Chlorofonn I, 1 -Dichloroethane I, I -Dichloroethene
Number {ug/L) (ug/L) (ug/L)
Macon Source Area
~{\l,'-11 2/14/96 <1.0 <1.0 4.S
S/2196 <1.0 <1.0 4.S
7/30196 <1.0 <1.0 S.J
11/6196 ,., <1.0 S.8
2/4197 <1.0 <1.0 S.S
5/12/97 <LO <1.0 6.2
8/6/97 <l.O <1.0 1.9
l l/13/97 <:J.0 <J.0 4
:!/5/98 <LO <1.0 l.l
5/6/98 <1.0 <l.O l.2
sn/98 <1.0 <1.0 1.6
l !/4198 <1.0 <1.0 1.6
Z/10/99 <1.0 <1.0 1.4
5/12/99 <1.0 <1.0 1.8
8/5199 <1.0 <1.0 <1.0
11/2199 <1.0 <1.0 14
2/17/00 <1.0 <l.O 2.1
5/&/00 <1.0 <1.0 1.9
8/3/00 <1.0 <1.0 <1.0
1/17/01 <1.0 <1.0 ,.,
7/11/01 <1.0 <1,0 2
Remed1at1on Performance Standard 3500
NA"' :-;'01 Analyzed DL = Dilution DUP dupliea~
Table 5
Groundwater Quality Summary
Macon/ Dockery Site
Richmond Count" North Carolina ·' Cis.ltrans-l ,2-Dichloroethene Methylene chloride Tetrachloroethene
(ug/L) {ug/L) (ug/L)
<1.0 <2.0 <1.0
<J.0 <2.0 <10
<1.0 <2.0 <l.O
<1.0 <2,0 <10
<1.0 <20 <LO
<1.0 <2,0 <10
<l.O <20 <1.0
<l.0 <2,0 <1.0
<1.0 <2.0 <10
<1.0 <2.0 <1.0
<l.O <2.0 <1.0
,:;J,O <2.0 <1.0
<10 <2.0 <1.0
<1.0 <2.0 <1.0
<1,0 <2.0 <1.0
<1.0 <2.0 <1.0
<1.0 <2,0 <1.0
<1.0 <2,0 <1.0
<1.0 <2.0 <1.0
<1.0 <2.0 <1.0
<!.O <2.0 <1.0
70
1, l, l-T rich!orocthane
(ug/L)
<1.0
<1,0
<10
I.I
<l.O
<!.O
<1.0
<l.O
<:1.0
<l.O
<l.O
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
I.I
200
e
Trichloroethylene Vinyl chloride Benzene Toluene
(ug/L) (ug/L) (ug/L) {ug/L)
7 <1.0 q 0 <l.O
S.7 <1.0 <1.0 <l.O
S.8 <l.O <1.0 <1.0 gs <10 <1.0 <1.0
84 <!.0 <1.0 <l.O
s <10 <1.0 <1.0
29 <LO <1.0 <1,0
64 <LO <10 <1.0
59 <10 <1,0 <10
4,3 <1.0 <1.0 <1.0
2.9 <1.0 <1,0 <1,0
2.6 <1.0 <1.0 <J,0
2.9 <1.0 <!.O <1,0
l.1 <1.0 <1.0 <LO
1.6 <1.0 <1.0 <LO
2.S <1.0 <1.0 <10
l.l <LO <1.0 <10
26 <LO <1.0 <l.0
1.5 <1.0 <1.0 <!.O
1.2 <1.0 <1.0 <LO
26 <1.0 <1.0 <1.0 • 2.8 1000
Well Date
Number
Macon Source Area
~1W-\l 2/14196
5/Y%
7/30/96
11/6196
2/4197
S/11197
8/6197
11/13/97
115/98
516198
snm,
11/4198
2/10/99
5112/99
815f>!
11/2/99
2/17/00
5/8/00
W/00
1/17/01
7/11/01
Remed,atlon Performance SWldard
NA • Not Analyzed
Total Xylcnes
(ug/l..)
<3,0
<3.0
<J.O
<J.O
<J.O
<3.0
<J.O
<J.O
<3.0
<J.O
<J.0
<J.O
<3.0
<3.0
<).0
<J.O
<3,0
<3.0
<3.0
<J.O
<J.O
,oo
Acetone Chromium
(ug/L) (ug/L)
<JO <JO
<JO <10
<JO <JO
<JO <10
<JO <JO
<JO <10
<JO 18
<JO 16 6
<JO <JO
<JO <JO
<JO <10
<10 <JO
<JO <10
<JO <JO
<JO 16
<JO <JO
<JO II
<JO 16
<JO II
<JO 1,
<10 <JO
3500 so
Table 5 (Continued)
Groundwater Quality Summary
Macon/Dockery Site
Richmond County, North Carolina
Barium Beryllium Manganese Nickel Vanadium
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
160 <5.0 " <40 <50
93 <S.O 13 <40 <50
110 <5.0 35 <40 <50
90 <S.O 10 <'° <50
98 <5.0 18 <40 <50
86 <50 9.7 <40 <SO
220 <5.0 130 <40 <50
120 <5.0 34.6 <40 <50
99 <5.0 14 <40 <SO
98 <5.0 14 <40 <50
120 <S.O 31 <40 <SO
110 <5.0 17 <40 <50
100 <5,0 13 <,0 <SO
99 <S.O 10 <,0 <50
220 <S.O 100 <40 <50
130 <5.0 66 <40 <SO
120 <5,0 22 <<O <SO
130 <S.O " <40 <SO
230 <S.O 93 <,0 <SO
200 <S.O 78 <.>O <SO
180 <5.0 68 <40 <50
1000 so 100 so
Zinc Cadmium Lead ~lerCUI)" Cyanide Suspended Solids
(ug/L) (ug/L) {ug/L) (ug/L) (mg/L) (mg/l..)
30 <O JO 3.2 NA <JO <00
23 <OJO 6 3 NA <JO 9
21 <0.30 <3,0 NA NA 32
<ZO <O JO <3 0 NA NA 8
26 <O 30 <3 0 NA NA SJ
<10 <O 30 <3,0 NA NA <SO
" <0,30 5.3 NA NA 500
10 7 <I <3 NA NA 110
<20 <O 30 II NA NA ..
<20 <0,)0 <3 NA NA 10
<20 <O JO '·' NA NA 60
22 <0,30 <3.0 NA NA 21
" <0,30 <3.0 NA NA <50
" <O 30 <3.0 NA NA <5.0
" <0.30 " NA NA ,10
29 <0,30 <3.0 NA NA 290
<20 <OJO <J.O NA NA 36
46 <0,30 <3.0 NA NA 56
'° <O JO ,.o NA NA 920
H <0.30 " NA NA ''° 30 <O.JO 3.3 NA NA 180 • 5000 15 LI
Well Date Chloroform 1,1 • Dichloroethane
Number (ug/L) (ug/L)
Macon Source Area
!'-,fW-19 2113/96 <1.0 2\0E
(DL) 2/13/96 <i.O "° 5111% <LO S5
(DL) 5/2/96 <l.O " 7/J 1/96 <l.O <i.O
11/6/96 <lO 14
215/97 <25 <25
5/12197 <5.0 9.7
W97 <1.0 69
\ If] 2/97 <5,0 IS
215/98 <5.0 <5.0
5/6/98 <l.O 20
Sn/98 <5.0 '° 1113/98 <5.0 l9
2/10/99 <20 <2.0
5/13199 <5.0 <5.0
815199 <5.0 <5.0
ll/21?9 <5.0 <5.0
2/17/00 <5.0 <5.0
5/S/00 <2,0 J.O
8/J/00 <2,0 5.4
1/18101 <5.0 6.6
7/11/01 Mooitoring
Remechauon Petformance Standard JSOO
NA~ Noc Analyzed DL • Dilution
l,1 • Dichlorocthene
(ug/L)
3.1
<l.O
lJ
s
5l
110
250
14
4'
54
9J
lJ
8,6
88
)6
<5.0
56
43
6)
70
77
130
Well
Table S
Groundwater Quality Summary
Macon/ Dockery Site
Richmond County, North Carolina
Cis/tnns-l ,2-Dichloroethene Methylene chloride Tetrachlorocthene
(ug/L) (ug/L) (ug/L)
86 12 8,9
100 <2,0 <lO
4) <2.0 L7
JJ <2.0 <1.0
89 <2.0 48
120 <20 l6
120 <SO J2
'6 <to <5.0
43 <20 '" 43 <lO lJ
JO '10 7.5
17 <20 l4
92 <lO 14
78 <lO 20
lJ <4,0 7,6
16 <lO 94
l6 <lO S.S
9.4 <lO <5.0
ll <lO <5.0
84 "0 5.0
l6 "0 12.0
20 <lO 22,0
Not Sampled °"'
70
1.1, 1-Trichloroethane Trichlorocthylene Vinyl chloride Benzene Toluene
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
L5 5.9 910E 4.1 <1.0
<1.0 <1.0 660 <1.0 <1.0
6.1 12 IOOE <1,0 <1.0
<lO 7.8 4) <lO <1.0
" J4 " I <1,0
'4 " <lO <lO <lO
75 26 <25 <25 <25
82 7,4 <SO <5.0 <50
ll l6 28 <1.0 <l.O
l6 ll <5.0 <5,0 <50
28 5,6 <SO <50 <5,0
61 l4 7,1 <1.0 <1.0
6.9 23 86 <SO <SO
l9 l8 <5.0 <5,0 <50
6.1 4,0 <20 <2 0 <2,0
l7 6.0 <5,0 <5,0 <50
" <50 <5.0 <5,0 <SO
74 <5.0 <5,0 <50 <5 0
" <5.0 <SO <5.0 <SO
67 2.➔ <2,0 <2.0 <2 0
12 0 5.1 <2.0 <20 <.":' 0
22.0 7.1 <5.0 <5.0 <5,0 • To Dry Conditions
100 18 1000
Well Date
Number
Macon Source Area
/',i\V-19 2/13/96
(DL) 2113/96
5/21%
(DL) 5111%
7/31196
I 1/6/96
2/5/97
5112197
8/6/97
11112/97
2/5/98
S/6198
8{7/98
I !/3/98
2/10/99
5113199
8/5199
11/2199
2/17/00
5/8/00
8/3/00
]/\&/01
7/11/01
Remed1a1.Jon Performance Standard
NA ~ Not Analyzed
Total Xylenes
(ugfL)
<30
<3.0
<3.0
<3.0
<3.0
<3.0
<15
<15
<J.O
<15
<15
<J.O
<15
<15
<6.0
<15
<15
<15
<15
<60
<6.0
<15
400
Acetone Chromium
(ug/L) (ug!L)
24•f32 210
<10 <JO
<JO 59
<10 <JO
<JO 18
<100 240
<250 520
<50 <JO
<10 J7
<50 51.2
<50 23
<JO 29
<50 18
<50 <JO
<20 18
<50 ])
<50 160
<50 180
<50 120
<20 2000
<50 2400
<50 1900
3500 50
Table 5 (Continued)
Groundwater Quality Summary
Macon/Dockery Site
Richmond Countv North Carolina ,,
Barium Beryllium ~fanganese Nickel Vanadium
(ug/L) (ug/1.) (ug/L) {ug/l.) (ug/L)
170 <5.0 )900 87 <50
<JO <5.0 <5,0 <<O <50
170 <5.0 )100 " <50
<10 <S.O <5.0 <,0 <50
120 <5.0 2900 18 <50
IJO <5.0 2500 150 <50
120 <5.0 2800 91 <50
94 <5,0 2600 <40 <50
IJO <5.0 2600 <40 <SO
147 <5,0 2600 46.5 <50
90 <5 0 2200 <40 <SO
97 <5.0 1800 <40 <50
170 <5,0 3400 4' <50
IJO <5.0 2)00 <40 <SO
110 <5.0 1700 <40 <50
89 <5.0 1400 <40 <50
200 <5,0 1800 97 51
210 <5.0 1700 130 69
150 <5.0 1400 71 <50
220 <5.0 1600 150 83
)60 <5,0 2100 270 160
]30 <5 0 2000 260 IJO
Monitoring Well Not Sampled ""'
1000 50 100 50
Zinc Cadmium Lad :,,.iercury Cyanide Suspended Solids
(ugfL) (ug/L) (ug/L) (ug/L) (mg/1.) (mg/L)
<20 <O.JO <3,0 0.51 <10 5)
<20 <0.30 <3.0 <0,20 <JO <5,0
<20 <0.30 <J.O 0.22 <10 " <20 <O )0 <J.0 <0.20 <JO <5 0
<20 <O 30 <J.O <020 NA 2)
<20 <O 30 <J.O <0.20 :-;'A 39
H <0,30 <3.0 <020 NA H
<20 <O JO <) 0 0,)2 NA I)
<20 <O JO <J.0 <O 20 N"A 75
26.2 <l.O <J.O <O 20 NA 120
<20 <OJO <3.0 <O 20 NA :J
<20 <O.JO <3.0 <O 20 NA " )I <0.30 <3,0 <0,20 NA 15
25 <0.30 <3.0 <O 20 NA 7
4] <0.30 <3.0 <O 20 NA 14
<20 0 30 <3,0 <0,20 NA 10
30 <OJO " 0,32 NA 390
)1 <OJO ,., 025 NA 660
<20 <O 30 <3.0 <0.20 NA ,oo
44 <0.30 <3.0 <0.20 NA 520
96 0,85 92 0,81 NA 1300
80 066 9A 035 NA 1300 • To Do· Condi1ions
5000 15 I.I 154
Well Dare Chlorofonn I.I -Diehlorocthane
Number (ug/1...) (ug/1...)
Upper Macon
l',.f\\.'-21 :!/14/96 <l.O 3 I
5/21% <1.0 2.1
7n0/% <1.0 <1.0
lint% <1.0 15
'})4/97 <1.0 1.8
5/12/97 <1.0 Ll
8/6197 <1.0 LI
! 1/11/97 <::1.0 1.,
216198 <i.O <LO
5/5/98 <1.0 IA
8/6198 <::1.0 <1.0
11/3/98 <1.0 <J.O
VI 1/99 <1.0 1.2
5/12/99 <1.0 <1.0
816199 <1.0 <1.0
l 1/3/99 <!.O LI
'})]7/00 <1.0 <1.0
519/00 <1.0 Ll
8/VOO <1.0 1.,
1/18/01 <1.0 1.5
711 J/01 <1.0 2.4
Rcmed,auon Perfonnanec Standard 3500
NA • Not Analyzed DI.. • Dilution
I, I -Dichlorocihene
(ug/1...)
<1.0
<l.O
<1.0
<1.0
<1.0
<1.0
<1.0
<::J.O
<J.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<!.O
DUP duplica1<,
Table 5
Groundwater Quality Summary
Macon/ Dockery Site
Richmond County North Carolina
Cis/uans-1,2-Dichloroethene Methylene chloride T ctrachloroethcnc
(ugfl..) (ug/1...) (ug/1...)
<LO <2.0 1.2
<1.0 <2.0 <1.0
1.2 <2.0 <1.0
<1.0 <2.0 <1.0
<1.0 <20 <1.0
<\.O <2,0 <1.0
<1.0 <2.0 <l.O
<JO <20 <1.0
<1.0 -::2.0 <::1,0
I -::2.0 <l.O
<1.0 <20 <1.0
<1.0 <2.0 <1.0
<1.0 <2.0 <1,0
<1.0 <2.0 <1.0
<!.O <2.0 <1.0
LI <2.0 <1.0
1.9 <2.0 <1.0
1.9 <2.0 <1.0
L7 <20 <1.0
1., <20 <1.0
2.0 <2,0 <1.0
70
1, 1, 1-TrichloroCthane Trichloroethylenc Vinyl chloride Benzene Toluene
(ug/1...) (ug/1...) (ug/1...) (ug/L) (ug/1...)
<1.0 " <l.O <1.0 <l.O
<1.0 <1.0 <\ 0 <1.0 <JO
<1.0 5 3 <JO <1.0 <JO
<1.0 <1.0 <LO <1.0 I ' <1.0 7.1 <1.0 <1.0 <1.0
<1.0 7.7 <1.0 <\ 0 <1.0
<JO " <1.0 <::!.O <::1.0
<l,O 7 <::1,0 <!.O <::1,0
<1.0 5.7 <1.0 <::LO <\ 0
<l.O 6 <1.0 <::1.0 <J,0
<1.0 10 <l.O <1.0 <l.O
<!.O 8.7 <\ 0 <1.0 <1.0
<JO 7.6 <\ 0 <1.0 <1.0
<1.0 9.3 <1.0 <JO <1.0
<l.O 69 <1.0 <IO <1.0
<1.0 7.5 <LO <1.0 <1.0
<1.0 7.2 <JO <1.0 <1.0
<1.0 8 5 <1.0 <1,0 <1.0
<1.0 89 <1.0 <JO <1.0
<1.0 9.6 <1.0 <1.0 <1.0
LI 10 <1.0 <!.O <1.0 • 200 2.8 1000
Well Date
Number
Upper Macon
~{\l.'-21 2/14/96
5/21%
7/30/96
11/7196
2/4/97
5/12/97
8/6/97
l l/11/97
2/6198
5/5/98
8/6198
I 1/3/98
2/11199
S/12/99
8/6199
11/3199
2117/00
5/9/00
811JOO
1/18/01
7/11/01
Remediauon Performance Standard
NA"' Not Analyzed
Total Xylenes Acetone Chromium
(ug/L) (ug/L) (ug/L)
<J.O <JO <JO
<J.O <JO <JO
<J.O <JO <JO
<J.O <JO <JO
<3.0 <JO <JO
<J.O <JO <JO
<J.O <JO <JO
<J.O <JO <JO
<3.0 <JO <JO
<3.0 <JO <JO
<J.O <JO <JO
<3,0 <JO <JO
<3.0 <JO <JO
<J.O <JO <JO
<3,0 <JO <JO
<3.0 <JO <JO
<J.O <JO <JO
<3.0 <JO <JO
<J.O <JO <JO
<3.0 <JO <JO
<3.0 <JO <JO
,oo 3500 50
Table 5 (Continued)
Groundwater Quality Summary
Maconffiockery Site
Richmond County North Carolina
Barium Beryllium Manganese Nickel Vanadium
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
<50 <5.0 6.3 <40 <50
<50 <5.0 <S.O ''° <50
<50 <5,0 <5.0 "' <50
<50 <5.0 8.3 "' <50
<JO <50 <5.0 ''° <50
<50 <S.0 <5,0 "' <50
<50 <5,0 <5.0 "' <50
<50 <5.0 <5.0 "' <50
<50 <50 <5.0 "' <50
<50 <S.0 <50 "' <50
<50 <5,0 <5.0 "' <50
<50 <50 <5,0 "' <50
<50 <S.0 <5,0 "' <50
<50 <5,0 <5.0 <40 <50
<50 <5.0 <5,0 "' <50
<50 <5.0 <5,0 "' <50
<50 <5.0 <S.0 <40 <50
<50 <5.0 <S.0 "' <50
<50 <5.0 <S.0 "' <50
<50 <5.0 <5.0 "' <50
<50 <5.0 <5.0 "' <50
1000 50 JOO 50
• Zinc Cadmium Lead Mercury Cyanide Suspended Solids
(ug/L) (ug/L) (ug/1..) (ug/L) (mg/L) (mg/L)
<20 <0.30 <3.0 NA <IO 9
<20 <O 30 20 NA <IO 9
<20 <OJO <J.O NA NA <50
<20 <0.30 <3.0 NA NA '1
<20 <0.30 <3,0 NA NA <5.0
<20 <0.30 <3.0 :-,;'A :-,;A <5,0
<20 <0.30 <J.O NA NA <5.0
<20 <1.0 <3.0 NA NA <50
<20 <0.30 <J.O NA :-,;'A <5.0
<20 <0.30 <3.0 NA NA <5.0
<20 <0,30 <J.O NA NA <50
<20 <0.30 <J.O NA ;-.;A <5.0
<20 <0.30 <3.0 NA NA <5.0
<20 <0,)0 3.3 NA NA <50
<20 <O 30 <J.O NA NA <5.0
<10 <O 30 <30 NA NA <5,0
<20 <0.30 <30 NA NA <5,0
<20 <O.JO <30 NA NA <50
<20 <O.JO <3.0 NA NA <50
<20 <OJO <J.O NA NA <5.0
<20 <O JO <J.O NA :-SA <SO • 5000 15 11 15'
Well Date Chloroform l, I • Dichlorocthane 1.1 -Dichloroethene
Sumber {ug/L) {ug/L) {ug/L)
Upper ~!aeon
MV,' 23 2/15/96 <1.0 3.9 <LO
5D/% <1.0 2.8 <t.O
(DUP) 5DI% <J.O 28 <l.O
7/30/96 <l.O 3.1 <1.0
1116/96 <1.0 '3 <i.O
2/4197 <1.0 6.9 16
5112197 <::J.O 8.9 " Y6/97 <1.0 7.3 1.7
1111 !/97 <1.0 8.1 3
2/5/98 <::J.O 9.5 2.1
515/98 <1.0 IO 16
Y6/98 <1.0 9.1 <1.0
1114198 <LO 15 I.I
2/10/99 <1.0 " LJ
5113199 <1.0 23 I.I
815199 <1.0 18 <l.O
11/3199 <1.0 15 I.I
2/17/00 <IO 22 1.2
5/8/00 <1.0 24 I.I
812/00 <1.0 18 <l.O
1/18/0] <1.0 16 u
7/l 1101 <1.0 6.8 <1.0
Reme,hauon Performance Sundud 3500
SA ~ Not Analyzed DL ~ Dilution Dur -duplicate
Table 5
Groundwater Quality Summary
Macon/ Dockery Site
Richmond County North Carolina
Cis/trans-1,2-Dichlorocthene Methylene chloride Tetrachlorocthene
(ugfl..) {ug/L) (ugfl..)
5.1 <2 0 <],0
3.8 <20 <1.0
,.8 <2,0 18
63 <20 <l.O
<.9 <2,0 1,2
82 <2.0 2.7
IO <::2.0 3.8
7.9 <::2.0 " 8.1 <::2,0 3.4
II <::2.0 2.6
7.2 <2.0 H
6.1 <2.0 1.2
5A <::2,0 1.4
7.5 <2.0 2.1
II <2 0 2.1
6.9 <2,0 12
7.6 <20 16
5.7 <2.0 1.6
7 l <2,0 19
53 <20 16
5' <2.0 LS
3.9 <2,0 12
70
l. l, I-Trichloroethane
(ug/1.)
<1.0
<1.0
<1,0
<1.0
<1.0
I
<::l.O
<1.0
<::!,O
I.I
18
I.I
1.,
13
2.1
1.7
1,
LS
1.7
I.I
I.I
1,
200
Trichlorocthylene Vinyl chloride Benzene Toluene
(ug/L) (ug/L) (ug/L) (ug/L)
24 <1.0 <1.0 <1.0
II <1.0 <1,0 <1.0
15 <1.0 <l.O <1.0
,0 <1.0 <l.O <IO
12 <1.0 <l.O I
16 <::l,O <::1.0 <IO
19 <::LO <1.0 <l.0
" <::l_O <::1.0 <IO
15 <10 <1.0 <::I_O
16 <::l.O <::],0 <::1.0
12 <::l_O <1.0 <1.0
15 <::1.0 <IO <1.0
13 <1.0 <1.0 <1.0
IO <1.0 <l.O <J.O
12 <1.0 <IO <1.0
7,2 <1.0 <LO <IO
7,2 <1.0 <1.0 <IO
63 <1,0 <IO <l.0
7 3 <l.0 <1.0 <l.O
67 <1.0 <1.0 <IO
6.5 <!.O <1.0 <1,0
7.9 <1.0 <1.0 <1.0 • 2.8 IOOO
Well Date
Number
Upper ~boon
M'\\.' 23 2115196
SIJ/96
(OUP) 5D/96
W0/96
I l/6196
214191
S/12191
8/6197
11/11197
215198
515198
8/6198
J l/4/98
2/10/99
5/13199
~5199
I 1/3/99
2/17/00
5/8/00
8/2100
1/18/01
7111/01
Remed1auon Performance Standard
NA ~ Not Analyzed
Total Xylenes
(ug.lL)
<3.0
<3.0
<J.O
<J.O
<J.O
<J.O
<J.O
<JO
<3.0
<J.O
<J.O
<3.0
<3.0
<3,0
<3.0
<3.0
<J.O
<J.O
<J.O
<J.O
<J.O
<J.O
400
Acetone Chromium
(ug.lL) (ug.lL)
20 " <JO 29
<JO <JO
<20 <JO
<JO <JO
<JO <JO
<JO <JO
<JO <JO
<JO <JO
<JO <JO
<JO <JO
<10 <JO
<JO <JO
<JO <JO
<JO 15
<LO 21
<JO 12
<JO <JO
<JO <JO
<JO 19
<JO <JO
<JO 19
)500 50
Table S (Continued)
Groundwater Quality Summary
!\-facon/Dockery Site
Richmond County North Carolina
Barium Beryllium Manganese Nickel \'anadium
(ug.lL) (ug/1..) (ug.lL) (ug/1..) (ug.lL)
230 5) 1200 <40 120
170 <S.0 900 <40 87
<50 <50 <S.0 <40 <SO
<50 <5.0 79 <40 <SO ,so <5.0 49 <40 <SO
<JO <5.0 52 <40 <SO
<SO <5.0 41 <40 <SO
<SO <S.0 82 <40 <50
<SO <5,0 41.l <40 <SO
<SO <S.O JI <40 <50
<SO <S.O )6 <40 ,so
<SO <S.0 )9 <40 ,so ,so <S.0 \JO <40 <SO
<SO <5.0 60 <40 <SO
54 <5,0 470 56 ,so
84 <S.0 650 68 <SO
<SO <S.0 260 <40 <SO
<50 <5.0 71 <40 <SO
<50 <5,0 190 "' <SO
51 <5.0 200 <40 <SO
<SO <5.0 57 <,0 <SO
59 <5.0 410 <40 <SO
1000 so so
• Zinc Cadmium Lad Mercury Cyanide Suspended Solids
(ug/1..) (ug!L) (ug!L) (ug/1..) (mg/L) (mg/L)
260 <0,30 28 0,22 <JO 1400
ISO <O 30 21 <O 20 <JO )40
<20 <-0 JO <3.0 <O 20 <JO <5 0
)5 <0,30 ) 5 <0,20 NA )8
<20 <O 30 <3.0 <O 20 NA 20
<IO <0.30 <3.0 <0,20 NA 15
<20 <0.30 <3,0 0.08 NA 140
<20 4.7 470 <O 20 NA 19
<20 <l.O <3,0 NA NA 12
<20 <0.30 <JO <020 :,.;A <S.0
<20 <0.30 <JO <0.20 NA 9
<20 <0.30 <3,0 <O 20 NA 9
4\ <0.30 <JO <O 20 NA )6
<20 <0,30 <JO <0,20 NA 15
52 <-0 JO <3.0 <O 20 NA 110
74 <0.30 62 <0.20 :,.;A I 10
47 <0,30 )6 <0,20 NA 91
<20 <0.30 <3.0 <0,20 NA 18
25 <-0 JO <3.0 <0.20 NA )4 .. <0.30 '° <0.20 NA \JO
<20 <OJO <J.O <0,20 NA 27
96 <0.30 5.1 <020 NA 110 • 5000 15 I.I
Well Date Chloroform
:-:umber (ug/L)
Lower Macon
~f\\l 13 2/14/96 <1.0
(DL) 2/14/96 <1.0
S/2196 <LO
7n0196 <2.0
11/6/96 L5
214197 <1.0
5112/97 <2.0
8/6197 <2.0
l 1/11/97 <5
2/S/98 <1,0
5/6/98 <2.0
&n/9& <1.0
11/4/98 <1.0
2/10/99 <1.0
5113199 <1.0
~5199 <1.0
11/3/99 <1.0
2116/00 <1.0
518/00 <1.0 ~= <1.0
1117/0\ <1.0
7/1 !/01
Remed1a1mn Performance S=dard
SA ~ Not Analyzed DL = Dilution
1.1 -Dichloroethanc
(ug/L)
80
76
63
88
66
71
99
61
6l
67
JS
J9
24
23
29
IS
II
8.5
'' 4.0
1.8
Monitoring
JSOO
DUP duplicate
l, I -Dichloroethene
(ug/L)
25
20
IS
" 17
12
29 ,.,
<5
II
" 12
68
J.7
6.4
2.6
1.7
1.2
1.0
<1.0
<1.0
Well
Table 5
Groundwater Quality Summary
Macon/ Dockery Site
Richmond County ;"•forth Carolina ,,
Cis/trans-1,2-Dichloroethenc Methylene chloride T etrachlorocthcne
(ug/L) (ug/L) (ug/L)
4.9 <2.0 2.7
4.9 <20 <1.0
<1.0 <2.0 I)
4 <4 0 <20
2.J <2.0 <1.0
J.J <2.0 12
2.2 <4.0 <2 0
<2.0 <4.0 <2.0
<5 <IO <5
1.6 <2.0 <l.0
<2.0 <4,0 <2.0
<l.O <2.0 <1.0
<IO <2 0 <l.O
<1.0 <2,0 <1,0
<1.0 <20 <1.0
<1.0 <2.0 <t.O
<LO <2,0 <1,0
<l.O <2 0 <l.O
<1.0 <2 0 <l.O
<i.O <2.0 <1.0
<1.0 <2.0 <1.0
Nm Sampled Doo
70
I.I I-Trichloroethane T richloroeth)·lenc Vinyl chloride Benzene Toluene
(ug/L) {ug/L) (ug/L) (ug/L) (ug/L)
91E " <1.0 l.2 <1.0
85 12 <i.O <1.0 <1.0
" <2.0 180 <1.0 <1.0
67 S.2 <2 0 25 <2 0
48 4S <l.O 1.4 <IO
50 5.4 <!.O 1.2 <!.0
85 68 <2 0 <2,0 <2 0
'° <2.0 <2 0 <20 <2,0
35 <5 <5 <5 <5
" J.6 <1.0 <1.0 <1.0
3' 4.4 <2,0 <20 <2 0
40 5.J <1.0 I <1.0
25 2 2 <1.0 <1.0 <IO
22 2.5 <1.0 <1.0 <1.0
JS 22 <1.0 <1.0 <1,0
17 <1.0 <1.0 <1,0 <IO
12 <1.0 <1,0 <1.0 <:\.O
9.4 <1,0 <IO <l.O <LO
7.5 <1,0 <l.O <1.0 <l.O
5.7 <1.0 <l.0 <IO <1.0
3.1 <1,0 <l.O <1.0 <1.0 • To D,y Conditions
200 28 1000
Wdl Date Total Xylenes Acetone Chromium
Number (ugll.) (ugll.) (ug/L)
Lower Macon
l',f\',,' lJ 2/14/96 <3,0 <JO 27
(DL) 2114196 <3.0 <JO <JO
5/2/96 <3.0 <10 20
7/30/96 <6,0 <JO 27
11/6196 <3.0 <JO 16
2/4/97 <3.0 <JO 1,
5/12/97 <6,0 '20 14
8/6197 <6.0 <20 15
11/11/97 <IS <50 l l,9
2/5/98 <3.0 <JO 11
5/6198 <6.0 '20 <10
8{7/98 <3.0 <JO <10
I 1/4198 <3.0 ,10 18
2110/99 <3.0 <10 27
5/13199 <3.0 <JO 25
815/99 <3.0 <JO 36
1113199 <3.0 <JO 56
2/16/00 <3.0 <JO 20
5/8/00 <3.0 <10 30
8/2/1111 <3.0 <JO 17
1/17/01 <J.O <JO \)
7/! 1/01
Remed1auon Periormance Standard ,oo 351111 50
NA -Not Analyzed DL = Di!uti
Table 5 (Continued)
Groundwater Quality Summary
Macon/Dockery Site
Richmond Countv, North Carolina
Barium Beryllium Manganese Nickel Vanadium
(ug/L) (ug/L) (ug/L) (ug/L) (ugll.)
550 <5.0 S70 "' 65 ,so <5.0 <5,0 "' ,so
780 <5.0 \0\11) "' 79
960 5.5 1500 "' 110
520 <5.0 760 "' 60
570 <5.0 850 '40 58
280 <5,0 320 '40 ,,o
560 <5.0 760 '40 60
356 <5.0 4<0 '40 ,,o
310 <5,0 390 ''° ,so
\<O <5.0 130 ''° ,so
170 <5.0 150 '40 ,,o
360 <5,0 ,10 <40 <50
860 <5.0 \JOO ''° 11111
590 <5,0 800 '40 60
\0\11) 6.6 141111 ''° 1)0
600 <S.O 750 43 58
''° ,so 400 ''° <50 ,so <50 560 <40 ,,o
530 <5,0 660 ''° ,so
520 <5.0 580 ''° <50
Monitoring Well Nol Sampled °"'
\0\11) 50 11111 50
Zinc Cadmium Lead Mercury Cyanide Suspended Solids
(ug/L) (ug/L) {ugll.) (ug/L) (rngll.) {mg/L)
120 <0.30 17 1.7 <JO 910
<20 <0.30 <J.0 <0.20 <JO <S.O
160 <0,30 20 IA <JO 2100
260 0.3 I 33 0,53 NA 2000
110 <0.30 \) <O 20 NA 730
\JO <OJO 16 0.42 NA 870
52 <0.30 62 0.53 NA 4110
\<O <0.30 8.7 0 3 I NA 121111
93 <1,0 5.5 <0.20 NA " 82 <0.30 7.3 0,37 NA 150
" <O.JO <3.0 <O 20 NA 17
62 <0.30 <3.0 0 22 NA 17
130 <OJO 7.1 0,30 NA 420
260 <0.30 27 <0.20 SA 1500
180 0.39 16 0,50 :-:A 640
260 <OJO 28 0 25 NA 1600
560 <0.30 1, 0.47 NA 780
84 <O JO <3.0 022 NA 260
\JO <O 30 7.8 0 36 1'A 460
11111 <0.30 11.0 0,22 NA 690
83 <O 30 8.1 0 43 NA 1900
To D;y Conditions • 5000 IS LI
Wei! Date Chloroform
:-:umber {ug/L)
Lower Macon
~IW 22 2/14/96 <1.0
511196 <1,0
7/30/96 <l.O
11/6/96 <!.0
2/4197 <1.0
5/12/97 <LO
8nt97 <1.0
\ l/11/97 <1.0
2/5/98 <1.0
5/6/98 <1.0
8/6/98 <1,0
11/4198 <1.0
UI0/99 <1.0
5113199 <1.0
8/5/99 <1.0
11/3199 <1.0
2/16/00 <1.0
5/8/00 <1.0
8/2100 <1.0
1/17/01 <1.0
7120/01 <1.0
Remcd1a11on Performance Standard
NA • :-,.'ot Analyzed DL = Dilution
1,1 -Dichlorocthane
(ug/L)
5.5
J.6
2.2
3.1
4.1
4.4
5.5
8.6
9.4
8.8
7.J
4.7
' l.8
2.9
' S.6
" I)
" 5.7
JSOO
DUP-.tuplio,,tc
I.I -Dichloroethrne
(ug/L)
6.)
5.J
'4
3.4
5.6
6.5
42
62
4.2
H
u
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
l.0
<1.0
Table 5
Groundwater Quality Summary
Macon/ Dockery Site
Richmond Countv Sorth Carolina .,,
Ci~trans-1,2-Dichloroethrnc Methylene chloride T etrachloroethene
{ug/L) {ug/L) (ug/L)
,., <2.0 <1.0
<l.O <2.0 1.4
15 <20 <1.0
<LO <2,0 <1.0
<1.0 <2,0 <1.0
<1.0 <20 <1.0
I.I <20 <1.0
2.S <2,0 <l.0
2 <2 0 <1.0
J.I <20 L7
3.1 <2.0 <1.0
1.8 <2.0 <1.0
L7 <2.0 <1.0
2.4 <2.0 <1.0
2.2 <2.0 <1.0
26 <2.0 <1.0
26 <20 <1.0
26 <2.0 <1.0
L7 <2.0 <1.0
12 <20 <1.0
<1.0 <20 <1.0
70
• 1,1, I-Trichloroethane Tridiloroethylene Vinyl chloride Benzene Toluene
(ug/L) (ug/L) {ug/L) (ug/L) (ug/L)
J 2 J.I <2 0 <2 0 <2.0
L7 25 <2.0 <2,0 <2 0
1.8 2J <1,0 <10 <IO
1.9 H <LO <IO <LO
2.7 4.) <1.0 <1,0 <l.0
2.9 ,.7 <1.0 <1.0 <IO
2.8 J.I <1,0 <1.0 <1,0
J 4.4 <l.0 <1,0 <IO
2.6 2.8 <l.O <IO <1.0
2.4 4.) <IO <IO <1,0
1.5 ,., <l.0 <1,0 <IO
<J.0 2.2 <1.0 <IO <J.0
<l.0 24 <1.0 <!_O <l.0
<l.O 2.9 <1.0 <1.0 <l.O
<1.0 2.3 <1.0 <IO <1.0
<],0 2.9 <l.0 <1.0 <l.0
<IO 2.4 <1.0 <1.0 <!.0
u 2.8 <1.0 <1.0 <l.0
1.4 22 <IO <1.0 <1.0
2.0 1.6 <1.0 <1,0 <IO
1.5 I <1,0 <IO <1.0 • 200 2.8 1000
Well Date Total Xy!enes Aecoonc Chromium
Number (ug/L) (ug/L) (ug/L)
Lower Macon
~{W 22 2/14/96 <6.0 <20 " S/11% <6.0 <20 ]J
m0/96 <J.O <JO ]J
11/6196 <J.O <JO <JO
2/4/97 <J 0 <JO II
5/12/97 <3.0 <JO 17
8!7/97 <3.0 <JO <JO
\ If] 1/97 <3.0 <JO <JO
2/5/98 <3.0 <JO II
S/6/98 <J.O <JO IS
~6"'8 <3.0 <JO IJ
11/4/98 <J.O <JO <JO
VI0/99 <3.0 <JO II
5/13/99 <JO <JO II
815199 <J.O <JO <JO
\ l/J/99 <J.O <JO II
Vl6/00 <J.O <JO <JO
5/8/00 <J.O <JO 19
8/2/00 <J.0 <JO JO
1/17/01 <J.O <JO <JO
7n0/0l <J 0 <JO JO
Remed1a.uon Performance Sta.nda.rd JS()() so
NA ~ Not Analyzed DL ,. Diluti
Table 5 (Continued)
Groundwater Quality Summary
Maconffiockery Site
Richmond Count',' Xorth Carolina ·' Barium Bei-y!lium Manganese Nickel Vanadium
(ug/L) (ug/L) (ug/L) (ug/L) {ug/L)
270 <S.O 2200 <,0 160
110 <5.0 780 ""'' S2
73 <5.0 650 <-<O <50
<50 <5.0 270 <-<O <SO
93 <5.0 760 <40 <50
67 <5.0 480 <,0 <50
71 <5.0 520 <40 <50
<50 <5.0 HS «o <SO
79 <5.0 630 "' <SO
100 <5.0 770 <40 <50
82 <5.0 650 "' <SO
<SO <5.0 JIO ""'' <SO
BJ <5.0 610 "' <SO
" <5.0 '60 <40 <SO
7J <5.0 480 "' <SO
7S <5.0 520 ""'' <SO
<SO <5.0 2'0 "' <SO
120 <5.0 ,_,, qQ 62
200 <5.0 1700 "' 120
60 <5.0 '10 "' <SO
<SO <5.0 110 "' <SO
IOOO so 100 so
• Zinc Cadmium Lud /1.krcury Cyanide Sus~nded Solids
(ug/L) (ug/1..) (ug/L) (ug/L) (mg/L) {mg/L)
260 <0.JO 39 NA <JO 800
96 <0.30 IS :,;'A <JO 230
96 <0,30 IS NA NA 260
39 <O 30 4J NA NA 170
93 <0.30 12 NA NA 260
67 <O JO 9.J NA NA JOO
60 <0.30 7.6 NA NA 240
37.7 <1,0 <3.0 NA ;,,;A 130
65 <OJ JO NA NA JJO
82 <0,3 JO NA NA 290
66 <0.30 JO NA NA 210
37 <O.JO <3.0 XA NA 120
63 <0.30 7.1 NA NA 3'0
48 <0.30 8.0 NA NA ISO
" <0.30 8.1 NA NA 280
S7 <0,)0 7A NA NA JIO
<20 <0.30 <J.O NA SA 92
100 <0.30 13.0 NA NA soo
180 <0,30 24.0 NA NA 980
66 <0.30 ', NA NA 260
<20 <0,30 <3.0 NA NA SJ • 5000 15
. ' . . • •
2.4.1 Manganese Exccedances
The Lower Dockery and Upper/Lower Macon remedial systems utilize metals filter canisters to
remove manganese prior to discharge. Due to breakthrough at the Lower Dockery system, the
filter media was replaced in March 200 I. As indicated in the preceding table, the manganese
concentrations in the Lower Dockery and Upper Macon Source Area arc above the Remediation
Performance Standard. However, in a letter dated March 28, 1995, the MDSG requested that NC
DENR allow for "the discharge of treated water from the air stripper system directly to the
infiltration gallery WITHOUT treating for manganese." The request was granted by Ms.
Giezelle Bennett in a letter to the MDSG dated March 28, 1995.
System Sample Date 1, 1 Dichlorocthenc
Concentration (ug/L)
Upper Macon Source Arca 7-7-00 9.9
Remediation Performance Standard 7.0
System Sample Date Lead Concentration
(ug/L)
Upper Macon Source Arca 5-3-01 19
Remediation Performance Standard 15
2.4.2 Additional Exceedances
Laboratory analytical results of the water sample collected July 7, 2000 from the Upper Macon
7
NA
NCDENR
JAMES 8. HUNT JR.
GOVERNOR
Blt...L HOLMAN
SECRCTARY
WILLIAM L. MEYER
OJ RECTOR
.. J:\.:~~t .. ".·• ··-
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• • NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WASTE MANAGEMENT
July 20, 2000
Ms. Giezelle Bennett
Remedial Project Manager
Superfund Branch
Waste Management Division
US EPA Region TV
61 Forsyth Street, I I th Floor
Atlanta, Georgia 30303
RE: Annual Summary Status Report: June I, 1999 to June I, 2000
Macon/Dockery NPL Site
Cordova, Richmond County
Dear Ms. Bennett:
The Superfund Section of the North Carolina Department of Environment and
Natural Resources (NC DENR) has received and reviewed the Monthly Progress
and O&M Report -May 2000 Annual Summary Status Report: June I, 1999 to
June I, 2000 for the Macon/Dockery National Priorities List (NPL) Site. The
Superfund Section offers the attached comments.
The Superfund Section of the NC DENR appreciates the opportunity to comment
on this document. If you have any questions or comments, please feel free to -
contact me at [phone], extension 349.
Attachment
Sincerely,
J)JI;!t{Jt:s;eµ~M
David B. Mattison, CHMM
Environmental Engineer
NC Superfund Section
1646 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1646
401 OBERLIN ROAD, SUITE 150. RALEIGH, NC 27605
F'HONE 919-733•4996 FAX [phone] AN EQUAL OF>PORTUNJTY I AFFIRMATJVE ACTION EMPLOYCR • 50% RECYCLED/10% POST-CONSUMER PAPCR
Ms. Giczcllt: Bennett
July 20. 2000
Pagel • •
ANNUAL SUMMARY STATUS REPORT: JUNE 1, 1999 TO JUNE 1, 2000
Section 2.4 Effiuent Concentrations
I. Please revise the table documenting effluent exceedances for manganese included in Section 2.4 by deleting the unnecessary date "5-8-00."
2. Please revise the table documenting effluent exceedances for manganese included in
Section 2.4 to include the Lower Dockery groundwater remediation system exceedance
for manganese on February 25, 2000 (320 micrograms per liter (µg/L)).
Table I Summary of Groundwater Flow Totals
3. Please revise the Period Totals for the four groundwater remediation systems in Table I to include the June 2000 monthly flows for each groundwater remediation system.
4. Please revise Table I to define the "Period" as June I, 1999 to June I, 2000.
Table 2 Summary of Operational Percentages
5. Please revise Table 2 to indicate that the "2000 Average" is actually the "Period
Average" and define the "Period" as June I, I 999 to June I, 2000.
'!
Macon/Dockery Site
Richmond County, North Carolina
January 14, 2000
Ms. Giezelle S. Bennett
Remedial Project Manager
United States Environmental Protection Agency
Region 4
61 Forsyth Street, S.W.
Atlanta, Georgia 30303-3104
• RECEIVED
JAN 19 2000
SUPERFUND SECTION
Reply to: Technical Committee
c/o David L. Jones
Ingersoll-Rand Company
I 14 Spencer Road
Cassopolis, Michigan
Phone: [phone]
Fax: 6I6/445-0011
Re: Response to Comments -Annual Summary Status Report (June I, 1998 to June I, 1999)
Macon/Dockery NPL Site
Cordova, North Carolina
Dear Ms. Bennett:
The Macon/Dockery Site Group (MDSG) Technical Committee is in receipt of your letter
dated November 1, 1999 regarding the North Carolina Department of Environment and Natural
Resources (NCDENR) review comments of the Annual Summary Status Report (June 1, 1998 to
June 1, 1999). Our consultant has prepared the following comments on behalf of the MDSG.
The numbered responses below correspond with the itemized comments contained in the
NCDENR November 1, 1999 letter. A copy of the NCDENR comment letter is attached to this
letter as Attachment I. A copy of the corrected table reflecting the comment below has been
attached to this letter as Attachment 2. Other than the table modification addressed in this letter,
no additional discrepancies were observed.
Response to Comments -
Annual Summary Status Report -(June 1, 1998 to June 1, 1999)
Table 5 Groundwater Quality Summary
I. Response: Table 5 has been revised to reflect that the duplicate groundwater sample
collected on May I 3, 1999 from groundwater monitoring well MW-2A
(DUP-2) contained no detectable concentrations of cadmium at a
laboratory detection limit of 0.30 ug/L.
Ms. Giezelle Bennett
January 14, 2000
Page 2
• •
The MDSG appreciates the EPA's and NCDENR's careful review of the Monthly
Progress and O&M Reports. Future reports submitted by the MDSG will incorporate the
changes and additions addressed in the comments above.
Should you have any questions or need additional information, please do not hesitate to
contact me.
Sincerely,
7, ~. ~~o~~
~idL.Jones
Technical Committee
cc: MDSG Members
Mr. David Mattison, NCDENR
Mr. Mike Profit, COM
NORTH SUPERFUND . ' ' ' . ~
I '' •
. ·; ·-'" ,. .. . ' -~
• · , • •. ;, r • ' . ' •
Ms. Giezclle Bennett
Remedial Project Manager
Supcrfund Branch
Waste Management Division
US EPA Region IV
61 Forsyth Street, 11th Floor
Atlanta, Georgia 30303
NOV 10'99 11:56 No.001 P.03
NORT~AROLINA DEPARTMENT OF'
ENVIRONMENT AND NATURAL RESOURCES
DIVISION 01" WASTE: MANAGEMENT
November 1, 1999
RE: Response to Comments -Annual Summary Status Report
(June 1. 1998 to June I, 1999)
Macon/Dockery NPL Site
Cordov11, Richmond County
Dear Ms, Bennett:
The Supcrfund Section of the North Carolina Department of Environment and
Natural Resources (NC DENR) hus received and reviewed Response to
Comments -Annual Summary Status Report (June I, 1998 to June 1, 1999) for
the Macon/Dockery National Priorities List (NPL) Site. The Superfund Section
offers the attached comments.
The Superfund Section of the NC DENR appreciutes the opportunity to comment
on this document. If you have any questions or comments, please feel free to
contact me at [phone], exten~ion 349,
Attachment
Sincerely,
David B. Mattison, CHMM
Environmentul Engineer
NC Superfund Section
1648 MAIL 81!:l't.Vlct; Cli,..TEA, AA1..e11:w, NORTH CAROLINA 27G9&·1G46
401 OIIERLI,.. RD~P, 8UJTe Uii0, RALEICH, NC 27605
PHONE BISl-733-4&88 f'AX 919-,tB-3605 AN eQvAL OPPOA,.UNITY I ,.PFIRMATIVI! AC:TION EMPLOYER -Bo,:, ~•c;YCLE0/10% P08T·C:ONJ;U .. GR PAPER
NORTH SUPERFUND
Ms. Giez.cJ/c Bennett
November l , 1999
Page I
ID: • NOV 10'99 11:57 No.001 P.04 •
RESPONSE TO COMMENTS -ANNUAL SUMMARY STATUS REPORT
(JUNE 1, 1998 TO JUNE 1, 1999)
Table S Groundwater Quality Summary
I. Table 5 indicates that the duplicate groundwater sample collected on Muy 13, 1999 from
groundwater monitoring well MW-2A (DUP-2) contained no delectable concentrations of
cadmium (al a laboratory quantitnti_on limit of 3.0-µg/l). However, laborutory
documentation included in the Monthly Progress and O&M Report -May 1999 indicates
that the duplicate groundwater sample collected on May 13, 1999 from groundwater
monitoring well MW-2A (DUP-2) contained no delectable concentrations of cadmium (al
a laboratory quantitation limit of 0.30-µg/l). Please clarify this discrepancy.
Well Date Total Xylenes Acetone
Number (ug/L) (ug/L)
~.()ockery 2/13/96 <3.0 <JO
(DUP) 2/13/96 <3.0 <JO
S/1J% <3,0 <JO
811/96 <3.0 <JO
lln/96 <3.0 <JO
2/5/97 <3.0 <JO
5/13/97 <3.0 <JO
8/5/97 <J 0 <JO
I \/12/97 <3 0 <JO
2/5/98 <3.0 <JO
S/6/98 <3.0 <JO
816/98 <3.0 <JO
11/3/98 <3.0 <JO
2/11/99 <3,0 <JO
5/12/99 <3.0 <JO
816"9 <3.0 <JO
11/2199 <J 0 <JO
Macon Source Area
MW2A 2/13/96 <3.0 <JO
5/2196 <3.0 <JO
(DUP) 5/2/96 <3.0 <JO
7/3 !/96 <30 <JO
11/6/96 <3.0 <JO
214/97 <3.0 <JO
S/12197 <3.0 <JO
8/6/97 <60 <JO
(DUPLICATE 2) 11112/97 <6,0 <20
11/12197 <6.0 <20
2/5/98 <\5 <SO
5/6/98 <JS <50
(DUP 2) 5/6/98 <JS <SO
Bn/98 <75 <250
(DUP-2) sn/98 <75 <250
11/4/98 <75 <250
(DUP-2) I 1/4/98 <75 <250
VI0/99 <75 <250
(DUP-2) 2110/99 <75 <250
5/13/99 <75 <250
(DUP-2) 5/13/99 <75 <250
816/99 <75 <250
(DUP-2) 816/99 <75 <250
!1/3/99 <75 <250
(DUP-2) I 1/3/99 <7S <250
Table 5 (Continued)
Groundwater Quality Summary
Maconffiockery Site
Richmond County North Carolina
Chromium Barium Beryllium Manganese Nickel
(ug/L) (ug/L) (ug/L) (ug/L) (ug/L)
56 320 <5.0 3500 40
57 370 <5.0 3700 <40
<JO 6S <5.0 2400 <40
<JO 86 <5.0 2500 <40
<JO 82 <5.0 2700 <40
<JO 94 <5.0 2500 <40
<JO 89 <5.0 2500 <40
<JO " <5.0 <5.0 <40
<10 140 <SO 2480 <40
<JO 79 <5.0 2800 <40
<JO 130 <5.0 2500 <40
<JO I JO <5,0 2400 <40
38 310 <5.0 3000 <40
20 190 <5.0 2800 <40
<JO I JO <5.0 2500 <40
<JO ISO <5.0 2500 <40
JO 16\1 <5.0 2400 <40
<JO 190 <5.0 140 <40
<JO 150 <5,0 26 <40
<JO 140 <5.0 19 <40
<JO 120 <5,0 25 <40
<JO 110 <5.0 1l <40
<JO JOO <5,0 <5.0 <40
<JO " <5.0 6 <40
<JO JOO <5,0 6.7 <40
<JO 103 <5.0 25,3 <40
<JO 106 <5.0 41.4 <40
<JO 110 <5.0 68 <40
<JO 120 <5.0 <5.0 <40
<JO 120 <5.0 <5.0 <40
<JO 110 <5.0 S.8 <40
<JO 110 <5.0 <5.0 <40
<JO 120 <5.0 <5.0 <40
<JO \30 <5.0 <5.0 <40
<JO \30 <5,0 <5.0 <40
<JO \30 <5.0 <5.0 <40
21 130 <5.0 12 <40
<JO 120 <5.0 9.0 <40
<JO \30 <5.0 S.7 <40
<JO \30 <5.0 <5.0 <40
<JO 120 <5.0 <5.0 <40
<JO 120 <5.0 <5.0 <40
•
Vanadium Zinc Cadmium L=I Mercury Cyanide Suspended Solids
(ug/L) {ug/L) (ug/L) (ug/L) (ug/L) (mg/L) (mg/I..)
\30 230 <030 32 NA <JO 1100
140 250 <0.30 28 NA 19 1000
<SO <20 <0,30 <3_0 NA <JO JS
<SO 2S <0.30 <3_0 NA NA 79
<SO <20 <0.30 <3.0 NA NA SB
<50 <20 <0.30 <3.0 NA NA 49
<SO <20 <0.30 <3.0 NA NA 82
<SO 20 <0,30 <3.0 NA NA 28
<SO 48.1 <\ ,.3 NA NA 150
<SO <20 <0.30 3.8 NA NA 13
<SO 30 <0,30 4.7 NA NA 91
<SO <20 <0.30 4S NA NA S7
74 140 Ll 14 NA NA 590
<SO 68 <0,30 8.1 NA NA 160
<SO 28 <0.30 <3.0 NA NA 30
<SO 42 <0.30 s s NA NA \30 • <SO 45 <0.30 4.S NA NA 130
<SO 34 <0.30 <3.0 NA <JO " <SO <20 <0.30 <3.0 NA <JO 7
<SO <20 <0.30 <3.0 NA <JO 7
<SO 31 <0.30 <3.0 NA NA JS
<SO <20 <0.30 <3.0 NA NA <5.0
<SO <20 <0.30 <3.0 NA NA NS
<50 <20 <0.30 <3.0 NA NA <5.0
<SO <20 <0.30 <3.0 NA NA <5.0
<SO <20 <I <3.0 NA NA 9
<SO <20 <\ <l.O NA NA 8
<50 <20 <0.30 8.8 NA NA <5.0
<SO <20 <0.30 <3.0 NA NA 8
<50 <20 <0.30 <3.0 NA NA <5.0
<SO <20 <0.30 <3.0 NA NA <S.O
<SO <20 <0.30 <3.0 NA NA <5.0
<SO <20 <0.30 <3.0 NA NA <5.0
<SO <20 <0.30 <3.0 NA NA <5.0
<SO <20 <0.30 <3.0 NA NA <5.0
<SO JS <0.30 <3.0 NA NA S.O
<50 82 <0,30 <3.0 NA NA 6.0
<SO 22 <0.30 <3.0 NA NA 6.0
<50 24 <0.30 9.1 NA NA <5.0
<SO 72 <0.30 6.9 NA NA <5.0 • <50 45 LI <3.0 NA NA <5.0
<SO 34 <0.30 <3.0 NA NA <5,0
• NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WASTE MANAGEMENT
November 1, 1999
Ms. Giezelle Bennett
Remedial Project Manager
Superfund Branch
Waste Management Division
US EPA Region IV
61 Forsyth Street, 11 'h Floor
Atlanta, Georgia 30303
RE: Response to Comments -Annual Summary Status Report
(June 1, 1998 to June 1, 1999)
Macon/Dockery NPL Site
Cordova, Richmond County
Dear Ms. Bennett:
The Superfund Section of the North Carolina Department of Environment and
Natural Resources (NC DENR) has received and reviewed Response to
Comments -Annual Summary Status Report (June 1, 1998 to June 1, 1999) for
the Macon/Dockery National Priorities List (NPL) Site. The Superfund Section
offers the attached comments.
The Superfund Section of the NC DENR appreciates the opportunity to comment
on this document. If you have any questions or comments, please feel free to
contact me at [phone], extension 349.
Attachment
Sincerely,
David B. Mattison, CHMM
Environmental Engineer
NC Superfund Section
lifflj ••·••·• 1646 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1646
401 OBERLIN ROAD, SUITE 150, RALEIGH, NC 27605
PHONE [phone] FAX 919•71 5-360S
AN EQUAL OPPORTUNITY/ AF"FJRMATJVE ACTION EMPLOYER• 50% RECYCL.E0/10% POST•CONSUMER PAPER
Ms. Giezellc Bcnncll
November I, I 999
Page I •
RESPONSE TO COMMENTS -ANNUAL SUMMARY STATUS REPORT
(JUNE 1, 1998 TO JUNE 1, 1999)
Table 5 Groundwater Quality Summary
I. Table 5 indicates that the duplicate groundwater sample collected on May 13, 1999 from groundwater monitoring well MW-2A (DUP-2) contained no detectable concentrations of
cadmium (at a laboratory quantitation limit of 3.0-µg/l). However, laboratory
documentation included in the Monthly Progress and O&M Report -May 1999 indicates
that the duplicate groundwater sample collected on May 13, 1999 from groundwater
monitoring well MW-2A (DUP-2) contained no detectable concentrations of cadmium (at
a laboratory quantitation limit of 0.30-µg/l). Please clarify this discrepancy.
Macon/Dockery Site
Richmond County, North Carolina
September 20, 1999
Ms. Giezelle S. Bennett
Remedial Project Manager
United States Environmental Protection Agency
Region 4
61 Forsyth Street, S.W.
Atlanta, Georgia 30303-3104
Re: Macon/Dockery NPL Site
Cordova, North Carolina
Dear Ms. Bennett:
RECEIViD
SEP 28 1999
SUPERFUND SECTION
~
Reply to: Technical Committee
c/o David L. Jones
Ingersoll-Rand Company
1 14 Spencer Road
Cassopolis, Michigan
Phone: 6 I 6/445-885 I
Fax: [phone]
The Macon/Dockery Site Group (MDSG) Technical Committee is in receipt of your letter
dated July 23, 1999 regarding the North Carolina Department of Environment and Natural
Resources (NCDENR) review comments of the Annual Summary Status Report ftr June I, 1998
through June 1, 1999. Our consultant has prepared the following comments on behalf of the
MDSG.
The numbered responses below correspond with the itemized comments contained in the
NCDENR July 23, 1999 letter. A copy of the NCDENR comment letters are attached to this
letter as Attachment 1. A complete set of corrected tables reflecting the comments below has
been attached to this letter as Attachment 2. Other than the table modifications addressed in this
letter, no additional discrepancies were observed.
Response to Comments -
ANNUAL SUMMARY STATUS REPORT-JUNE 1, 1998 TO JUNE 1, 1999
Table of Contents/List of Tables
I. Response: The text section titles and table titles were revised to accurately reflect the
titles of the appropriate section and tables.
Section 2.1 Flow Rates and Totals
2. Response: The system flow totals provided in Table I were correct. The text of
Section 2.1 -Flow Rates and Totals has been revised to accurately reflect
Ms. Giezelle Bennett
September 20, I 999
Page 2
the proper flow rates.
•
Section 2.4 Effluent Concentrations
3.
4.
Response:
Response:
The table of manganese effluent exceedances has been revised to indicate
the proper year of the exceedances.
Since it is apparent that the influent and effluent samples collected from
the Lower Dockery groundwater remediation system on February 11, 1999
were incorrectly labeled in the field, the manganese exceedance has been
omitted from the table.
Section 2.4.1 Manganese Exceedances
5. Response: The third sentence of Section 2.4.1 has been revised to accurately reflect
the MDSG request to discharge treated groundwater without treating for
manganese.
Section 4.0 1998/1999 Schedule
6. Response: The title of this section and the Table of Contents have been corrected to
"1999/2000 Schedule".
Table 1 Summary of Groundwater Flow Totals
7. Response: The monthly flow total for the Upper/Lower Macon groundwater
remediation system for May 1998 totaled 876,945 gallons. Table I has
been revised to reflect the proper flow total.
Table 3 Groundwater Quality Summary
8. Response: The sections that were inadvertently omitted from the Annual Summary
Status Report have been included with this response letter.
Table 4 Groundwater Level Data
9. Response: The portion of Table 4 reflecting the groundwater level data for
groundwater monitoring wells MW-15, MW-lSA, and MW-18 has been
included with this response letter.
Table 5 Groundwater Quality Summary
10. Response: Table 5 has been revised to reflect that the duplicate groundwater sample
Ms. Giezelle Bennett
September 20, 1999
Page 3
•
collected on May 13, 1999 from groundwater monitoring well MW-2A
(DUP-2) contained no detectable concentrations of cadmium at a
laboratory detection limit of 0.30 ug/L.
The MDSG appreciates the EPA's and NCDENR's careful review of the Monthly
Progress and O&M Reports. Future reports submitted by the MDSG will incorporate the
changes and additions addressed in the comments above.
Should you have any questions or need additional information, please do not hesitate to
contact me.
Sincerely,
David L. Jones
Technical Committee
cc: MDSG Members
Mr. David Mattison, NCDENR
Mr. Mike Profit, COM
•
ATTACHMENT 1
ID: HUG (14 '99 8:47 No.001 P.O~ • NORTH CAROLINA DEPARTMENT OF
Ms. Giei.elle Bennett
Remedial Project Manager
Supcrfund Branch
Waste Management Division
US EPA Region IV
61 Forsyth Street, ll th Floor
Atlanta, Georgia 30303
ENVIRONMENT AND NATURAL RESOURCES
DIVIIION OP' WAITE MANAGEMENT
July 23, 1999
RE: Annual Summary Status Report -
June I, 1998 to June I, 1999
Macon/Dockery NPL Site
Cordova, Richmond County
Dear Ms. Bennett:
The Superfund Section of the North Carolina Dep3.1tment of Environment and
Natllral Resources (NC DENR) has received and reviewed the Annual Summary
Status Report -June I, 1998 to June I, 1999 forthe Macon/Dockery National
Priorities Lisi (NPL) Sile. The Superfund Section offers the attached comments.
The Superfund Section of the NC DENR appreciates the opportunity 10 comment
on this document. If you have any questions or comments, please feel free to
contact me 11t [phone], extension 349.
Attachment
Sincerely,
David B. Mattison, CHMM
Environmental Engineer
NC Supcrfund Section
401 Ollll~IN ROAD, IVITI. IBO, RALtlOH, NC 27111!1011
PHONI SIIP·7H-4998 FAX 91 D-7111·1809
AN l!QUAL OPPt:laTUNITV I All'll'UU(,.TI\I. ACTION EMPLOYl!:A • 1101ft Al!CVCLl!a/10" H)ll,...CON!IUM.alll PAP•"
NORTH SUPERFUND
Ms. Giezelle Dennen
July 23, 1999
l'age I
lD: HUlJ U4 '':!:! •
ANNUAL SUMMARY STATUS REPORT -JUNE 1, 1998 TO JUNE 1, 1999
Table of Content',/Llst of Tables
Please correct the titles given below to uccurately reflect the titles of the appropriate
section and tables a~ given in the text.
Section 2.4.2
Section 2.4.3
Table 6
Table 7
Table 8
I, J Dichloroethene Exceedance
Cadmium Exceedance
Air Quality Summary
Summary of Mass voe Removal Estimates
Proposed 1999/2000 Sampling Schedule
Section 2. J Flow Rates and Totals
2. The system flow totals given in Section 2.1 do not agree with the system flow totals
given in Table I. Please clarify this discrepancy.
Section 2.4 Effluent Concentrations
3. The table of manganese effluent exceedances given in Section 2.4 gives the wrong year
in the date for the first six entries. The 7-9-99, 9-10-99, 10-2-99, 11-4-99 and 12-1-99
manganc6c concentrations for the Upper Macon Source Area groundwater remediation
system should be corrected to reflect a 1998 date. Furthermore, the 10-2-99 manganese
concentration for the Lower Dockery groundwater remediation system should be
corrected 10 reflect a 1998 date. Please correct these oversights.
4. The table of manganese effluent exceedances given in Section 2.4 indicates thut the 2-J 1-·
99 Lower Dockery groundwater remediation system effluent conlained 260 micrograms
per liter (µg/1) manganese. However, previous tlocumenlalion indicates thut the February
J J, 1999 Lower Dockery influent an_d effluent samples were incorrectly laheled at the
time of sampling or during laboratory analysis and that the 260 µgll manganese actually
originated from the Lower Dockery influent. Please clarify this discrepancy.
Section 2.4.1 Manganese Ex~dances
3. The third sentence of Section 2.4.1 should state that "In a letter dated March 28, 1995, the
MDSG requested that NC DENR allow for the discharge of treated water from Lhe air
stripper system directly to the infiltration gallery WITHOUT treating for manganese."
Please correct these ovcrsighls.
Section 4.0 1998/1999 Schedule
4. The title of this section should actually be "I 999/2000 Schedule." Please correct this
over.;ight in Section 2.4 as well as in the Table of Contents.
Ms. Giezelle Bennen
July 23, I 999
Pagc2
1u:
Table 1 Summary or Groundwater Flow Tolals
·., •.:.. .) 1,u , '-''-' l , , \..·, •
5. The monthly Oow total for the Upper/Lower Macon groundwater remediation system for
May 1998 is 87.5,945 gallons. However, previous documentation indicates that the
monthly flow total for the Upper/Lower Macon groundwater remediation system for May
1998 is 876,945 gallons. Please clarify this discrepancy.
Table 3 Groundwater Quality Summary
6. The portion of Table 3 reflecting the Lower Dockery effluent results was inadvertently
omitted. Furthermore, the portion of Table 3 reflecting the Upper Macon/Lower Macon
influent volatile orgwiic compound (VOC) concentrations was inadvertently omitted.
Plea.,;e correct these oversights.
Table 4 Groundwater Level Dala
7. The portion of Table 4 reflecting the groundwater level data for groundwater monitoring
wells MW-15, MW-1 SA and MW-18 wa~ inadvenently omitted. Please correct this
oversight.
Table S Groundwater Quality Summary
8. Table 5 indicates that the duplicate groundwater sample collected on May 13, 1999 from
groundwater monitoring well MW-2A (DUP-2) contained no detectable concentrations of
cadmium (at a laboratory quantitation limit of 3.0-µg/l). However, laboraLory
documentation included in the Monthly Progress and O&M Report -May I 999 indicates
thut the duplicate groundwater sample collected on Muy 13, J 999 from groundwater
monitoring well MW-2A (DUP-2) contained no detectahle concentrations of cadmium (at
a laboratory quantitation limit of 0.30-µg/l). Please clarify this discrepancy.
•
ATTACHMENT2
•
TABLE OF CONTENTS
Page No.
1.0 Introduction ...................................... : ............................................................. .
2.0
3.0
4.0
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
System· Performance Review ......................................................................... . 1
2.1 Flow Rates and Totals........................................................................ 2
2.2 Percent Operational. ........................................................................... ~ 2
2.3 Problems Encountered and Corrective Actions................................. 3
2.3.1 Weather Related Problems..................................................... 3
2.3.2 Individual Sites....................................................................... 3
2.4 Effluent Concentrations...................................................................... 5
2.4.1 Manganese Exceedances........................................................ 7
2.4.2 1, 1 Dichloroethene Exceedance............................................. 7
2.4.3 Cadmium Exceedance............................................................ 7
System Effectiveness ..................................................................................... .
1999/2000 Schedule ...................................................................................... .
LIST OF TABLES
Summary of Groundwater Flow Totals
Summary of Operational Percentages
Summary oflnfluent and Effluent Analytical Results
Groundwater Level Data
Groundwater Quality Summary
Air Quality Summary
Summary of Mass VOC Removal Estimates
1999/2000 Schedule
8
•
D Flow Rates and Totals
System flow total data are recorded on a weekly basis from the remedial systems. Monthly
totals for the systems are swnmarized in the monthly status reports. A swnmary of the flow rates
and totals for each groundwater system are included in Table 1. For the reporting period June 1,
1998 to June 1, 1999, the system flow totals are as follows:
• Upper Dockery 5,271,372 gallons
• Lower Dockery 5,870,296 gallons
• Macon Source Area · 4,763,237 gallons
• Upper & Lower Macon 8,318,147 gallons
Percent Operational
System downtime is recorded on a daily basis and swnmarized on the monthly progress reports.
A swnmary of the percent operational time is contained in Table 2. The following are the
average percent operational data for the reporting period of June 1, 1998 to June 1, 1999:
• Upper Dockery 91 percent
• Lower Dockery 90 percent
• Macon Source Area 98 percent
• Upper Macon 86 percent
~
• Lower Macon 89 percent
• SVE System 98 percent
Page No. 2
••
• Miscellaneous non-chronic equipment repairs were responsible for 5 days of
downtime during the reporting period.
Soil Vapor Extraction System
• The system has been operating without significant problems during !he reporting
.period.
2.4 Effluent Concentrations
A measure of the system performance can be made based on the systems ability to achieve
remedial performance standards. A summary of the effluent water analytical results is included
in Table 3. During the reporting period the effluent sample analytical results have been below
the performance standard concentrations except for the parameters listed in the following table:
Effluent Exceedances
Macon Dockery Site -Cordova, North Carolina
System Sample Date Manganese Concentration
(ug/L)
Upper Macon Source Area 7-9-98 110
Upper Macon Source Area 9-10-98 56
Lower Dockery 10-2-98 140
Upper Macon Source Area 10-2-98 110
Remediation Performance Standard 50
Page No. 5
•
System Sample Date Manganese Concentration
Upper Macon Source Area 11-4-98 450
Upper Macon Source Area 12-1-98 68
Upper Macon Source Area 1-11-99. 120
Upper Macon Source Area 2-11-99 120
Upper Macon Source Area 3-5-99 100
Upper Macon Source Area 4-8-99 72
Upper Macon Source Area 5-12-99 66
Remediation Performance Standard 50
'.
System Sample Date 1,1 Dicbloroetbene
Upper Dockery 6-5-98 25
Remediation Performance Standard 7
System Sample Date Cadmium Concentration
Upper Macon Source Area 5-12-99 36
'.
Lower Dockery 5-12-99 52
Remediation Performance Standard 5
Page No. 6
•
2.4.1 Manganese Exceedances
The Lower Dockery and Upper/Lower Macon remedial systems utilize metals filter
canisters to remove manganese concentration prior to effluent. Due to breakthrough at the Lower
Dockery system, the filter media was replaced in April 1998. In a letter dated March 28, 1995,
the MDSG requested that NC DENR allow for "the discharge of treated water from the air
stripper system directly to the infiltration gallery WITHOUT treating for manganese." The
request was granted by Ms. Giezelle Bennett in a letter to the MDSG dated March 28, 1995.
2.4.2 I. 1 Dichloroethene Exceedance
Water samples from the Upper Dockery Remedial System influent and effluent ports
were collected on July 9, 1998 to confirm the exceedance of 1,1-dichloroethene (1,1-DCE) from
the water sample collected at the Upper Dockery system effluent port on June 5, 1998. The
samples were submitted to the laboratory for rush tum-around analysis. The effluent sample
~
collected July 9, 1998 was reported by the laboratory to be less than the detection limit. The
reason for the June exceedance is suspected to be the result of the remediation system having
been off immediately prior to the collection of the effluent sample. As a result, the system had
not reached equilibrium when the sample was collected.
2.4.3 Cadmium Exceedance
Water samples collected from the Upper Macon Source Area and Lower Dockery
effluent ports on May 12, 1999 were reported to contain cadmium concentrations greater than the
Remediation Performance Standard of 5 ug/L. Savannah Laboratories re-~alyzed the two (2)
Page No. 7
•
4.0 1999/2000 Schedule
The following details the proposed 1999/2000 schedule for the Macon/Dockery site tasks:
• The 1999/2000 sample schedule is shown on Table 8;
• the approved operation and maintenance (O&M) program will continue;
• progress status reporting will continue to be submitted to the EPA on a monthly basis;
• the next annual summary status report will summarize the period June I, 1999 to June I,
2000.
Page No. 10
Upper Dockery
Monthly Average
Date Monthly Flow Total Flow Flow Rate
(gallons) (gallons) (gallons per minute)
Mar-96 400,155 400,155 9.3
Apr-96 286,151 686,306 6.8
May-96 66,826 753,132 1.5
Jun-96 97,350 850,482 2.3
Ju\.-96 163,426 1,013,908 3.8
Aug-96 218,330 1,232,238 5.1
Sep-96 149,420 1,381,658 3.5
Oct-96 140,191 1,521,649 3.2
Nov-96 438,013 1,959,862 10.1
Dec-96 161,903 2,121,765 3.7
Jan-97 294,071 2,415,836 6.8
Feb-97 267,596 2,683,432 6.2
Mar-97 250,068 2,933,500 5.8
Apr-97 276,556 3,210,056 8.4
May-97 289,938 3,499,994 6.7
Jun-97 135575 3,635,569 3.1
Jul-97 99896 3,735,465 2.3
Aug-97 70967 3,806,432 1.6
Sep-97 52256 3,858,688 1.2
Oct-97 2n5os 4,136,193 6.4
Nov-97 143168 4,279,361 3.3
Oec-97 78332 4,357,693 1.8
Jan-98 103968 4,461,661 2.4
Fel:r98 296588 4,758,249 6.9
Mar-98 326525 5,084,774 7.6
Apr-98 419475 5,504,249 9.7
May-98 440446 5,944,695 10.2
Jun-98 200192 6,144,887 4.6
Jul-98 337048 6,481,935 7.8
Aug-98 432719 6,914,654 10.0
Sep-98 411677 7,326,331 9.5
Oct-98 439378 7,765,709 10.2
Nov-98 362586 ,, 8,128,295 8.4
Dec-98 500450 8,628,745 11.6
Jan-99 552796 9,181,541 12.8
Fel:r99 524380 9,705,921 12.1
Mar-99 614841 10,320,762 14.2
Apr-99 571148 10,891,910 13.2
May-99 524349 11,416,259 12. 1
Period Totals: 5,271,372 I
Lower Dockery
Monthly Flow Total Flow
TABLE 1
SUMMARY OF GROUNDWATER FLOW TOTALS
MACON/DOCKERY SITE
RICHMOND COUNTY, NORTH CAROLINA
Macon Source Area
Monthly Average ,. Monthly Average
Flow Rate Monthly Flow Total Flow FIOYI Rate
{gallons) (gallons) (gallons per minute) (gallons) (gallons) (gallons per minute)
328,448 328,448 7.6 426,083 426,083 9.9
191,090 519,538 4.4 364,772 790,855 8.4
245,715 765,253 5.7 257,720 1,048,575 6.0
8,619 TT3,872 0.2 114,048 1,162,623 2.6
151,827 925,699 3.5 202,◄n 1,365,100 4.7
126,232 1,051,931 2.9 207,503 1,572,603 4.8 63,833 1,115,764 1.5 209,649 1,782,252 4.9 460,379 1,576,143 10.7 101,512 1,883,764 2.3
183,210 1,759,353 4.2 116,354 2,000,118 2.7
137,594 1,896,947 3.2 137,045 2,137,163 3.2
286,202 2,183,149 6.6 146,036 2,283,199 3.4
90,912 2,274,061 2.1 215,730 2,498,929 5.0
277,823 2,551,884 6.4 223,222 2,722,151 5.2
180,560 2,732,444 4.2 253,167 2,975,318 5.9
684,855 3,417,299 15.9 223,177 3,198,495 5.2
501987 3,919,286 11.6 234669 3,433,164 5.4
581027 4,500,313 13.4 117736 3,550,900 2.7
414199 4,914,512 9.6 50248 3,601,148 1.2
481049 5,395,561 11.1 36264 3,637,412 0.8
457604 5,853,165 10.6 70207 3,707,619 1.6
308483 8,161,648 7.1 102326 3,809,945 2.4
272079 6,433,727 6.3 114452 3,924,397 2.8
786548 7,220,275 18.2 178387 4,102,784 4.1
123013 7,343,288 2.8 178387 4,281,171 4.1
287027 7,630,315 6.6 145526 4,426,697 3.4
452535 8,082,850 10.5 600075 5,026,772 13.9
141936 8,224,786 3.3 410905 5,437,677 9.5
453014 8,677,800 10.S 431360 5,869.037 10.0
504860 9,182,660 11.7 329835 6,198,872 7.6
453131 9,635,791 10.5 473093 6,671,965 11.0
591481 10,227,272 13.7 513868 7,185,833 11.9
471729 10,699,001 10.9 493849 7,679,682 11.4
642213 11,341,214 14.9 V 498670 8,178,352 11.5
415550 11,756,764 9.6 371824 8,550,176 8.6
361051 12,117,815 8.4 337877 8,888,053 7.8
522107 12,639,922 12. 1 384124 9,272,177 8.9
622194 13,262,116 14.4 539925 9,812,102 12.5
704292 13,966,408 16.3 431729 10,243,831 10.0
581688 14,548,096 13.5 386443 10,632,274 9.0
5,870,296 4,763,237
Upper/Lower Macon
Monthly Average •.
Monthly Flow Total Flow Flow Rate
(gallons) (gallons) (gallons per minute)
375,318 375,318 8.7
709,726 1,085,044 16.4
482,220 1,567,264 11.2
48,305 1,615,569 1.1
759,920 2,375,489 17.8
638,400 3,013,889 14.8
302,505 3,316,394 7.0
640,760 3,957,154 14.B
871,155 4,828,309 20.2
725,549 5,553,858 16.8
596,131 6,149,989 13.8
795,239 6,945,228 18.4
939,710 7,884,938 21.8
918,080 8,803,018 21.3
999,040 9,802,058 23.1
605792 10,407,850 14.0
223859 10,631,709 5.2
911679 11,543,388 21.1
917631 12,461,019 21.2
821135 13,282,154 19.0
140796 13,422,950 3.3
844299 14,267,249 19.5
531692 14,798,941 12.3
1051002 15,849,943 24.3
932266 16,782,209 21.8
662272 17,444,481 15.3
876945 18,321,426 20.3
448056 18,769,482 10.4
TT6195 19,545,677 18.0
857122 20,402,799 19.8
821424 21,224,223 19.0
718543 21,942,766 16.6
251141 22,193,907 5.8
713232 22.907, 139 16.5
835206 23,742,345 19.3
586579 24,328,924 13.6
1035893 25,364,817 24.0
894763 26,259,580 20.7
828049 27,087,629 19.2
8,318,147
Sample Date
Location
LD Effluent 2/IS/96
2/16/96
2/22/96
2/28196
3/8/96
4/3/96
513/96
8/1/96
9/4/96
l0/1/96
11n/96
12/5/96
1/6197
3/12/97
4/8/97
S/14/97
6/6/97
7n.197
Bn/97
9/5/97
10/2/97
11/13/97
1115/97
1/9/98
2/5/98
3/5/98
4/3/98
5n/98
6/5/98
7/9/98
Sn/98
9/10/98
10/2/98
11/4/98
12/1/98
1/11/99
•2111/99
3/5/99
418199
5/12/99
6/10/99
718199
8/5/99
Rcmedianon Performance Standard
Chloroform
(og/L)
<LO
<1.0
<1.0
<l.O
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0 V
<1.0
<1.0
<1.0
<1.0
Table 3
Groundwater Quality Summary
Lower Dockery
Macon/ Dockery Site
Richmond County, North Carolina
I, I • Dichlorocthane I, I -Dichlorocthcnc Cis.'trans-1.2-Dichlorocthcnc
(og/L) (og/L) (og/L)
<1.0 <1.0 <1.0
<I.O_ 1 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <l.O
<1.0 <1.0 <1.0
<LO <LO <1.0
<1.0 <LO <1.0
<1.0 <1.0 <1.0
<LO <1.0 <1.0
<1.0 <1.0 <LO
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<l.O <I.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<l.O <1.0 <LO
<1.0 <1.0 <1.0
<1.0 <LO <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<t.0 <1.0 <LO
<1.0 <1.0 <1.0
17 3.2 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <LO <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <LO <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <I.0 <1.0
<1.0 <1.0 <1.0
<LO <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <1.0 <1.0
<1.0 <LO <1.0
<1.0 <1.0 <1.0
JSOO 70
Methylene chloride
(og/L)
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
~5.0
<2.0
<2.0
<2.0
<2.0
<2.0
s
• die influent and dfiueri1 samples coOected cm 2-11-99 wen ~ersed in die fidd, Table 2 has been conmed a, iilusttue lhe p-q,er IIWytical result
1,1, 1-Trichloroethane
(og/L)
<I.O
<1.0 ..
<l.O
<t.o
<1.0
<1.0
<I.O
<LO
<LO
<1.0 • <l.O
<LO
<LO
<LO
<1.0
<l.O
<LO
<I.O
<1.0
<l.O
<I.O
<1.0
<1.0
<I.O
<1.0
S.S
<I.O
<1.0
<1.0
<LO
<1.0
<1.0 • <LO
<LO
<l.O
<1.0
<LO
<1.0
<I.O
<l.O
<l.O
<1.0
<1.0
200
Sample Date Location LD-l/ll~6 2116/96 2/22196 2/28196 3/8/96 4/3/96 5/3/96 8/1/96 9/4/96 10/1/96 lln/96 12/5/96 1/6/97 3/12197 4/8/97 5114/97 6/6/97 1(2197 Sn/97 9/S/97 lOfl/97 11/13/97 1215/97 1/9/98 215198 3/5/98 4/3/98 5n/98 615198 119198 8/7198 9110198 10/2/98 1114/98 1211/98 1111/99 •2111199 V 3/5/99 4/8/99 5/12/99 6/J0/99 7/8199 8/S/99 Remediation Performance Standard Trichloroethylcnc B=ene (ug/L) (ug/L) <1.0 <1.0 <1.0 <l.0 <1.0 <1.0 <1.0 <1.0 <1.0 <I.0 <1.0 <l.0 <1.0 <1.0 <1.0 <1.0 <l.O <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <LO <1.0 <LO <l.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <LO <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <I.0 <1.0 <1.0 <LO <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <LO <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <I.0 <1.0 <1.0 <1.0 <1.0 2.8 TABLE 3 (Continued) Groundwater Quality Summary Lower Dockery Macon/ Dockery Site Richmond County, North Carolina I Toluene Total Xylcnes Chromium (ug/L) (ug/L) (ug/L) <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <ID <1.0 <3.0 <10 <1.0 <3.0 <10 <LO <3.0 <10 <LO <3.0 <10 <1.0 <3.0 <10 3.4 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <ID <1.0 <3.0 <10 <1.0 <3.0 <10 <LO <3.0 <10 <l.0 <3.0 <10 <LO <3.0 <10 <LO <3.0 <10 <LO <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <I.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <LO <3.0 <10 <l.O <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 .%10 <1.0 <3.0 <ID <1.0 <3.0 <10 <1.0 <3.0 <10 <1.0 <3.0 <10 IDOO 400 so Barium Manganese Zinc Cadmium (ug/L) (ug/L) (ug/L) (ug/L) <SO <l.0 <20 <0.30 <SO <5.0 <20 <0.30 <SO <S.O <20 <0.30 <SO <S.O <20 <0.30 <SO <5.0 <20 <0.30 <SO <5.0 <20 <0.30 <SO <S.O <20 <0.30 <SO 14 <20 <030 <SO 13 <20 0.56 <SO 11 <20 <0.30 <SO <5.0 <20 <030 <SO 3S <20 <0.30 <SO 6 <20 <0.30 70 <5.0 <20 <0.30 <SO <5.0 <20 <030 <SO <S.O <20 <0.30 <SO <5.0 <20 <0.30 <SO <S.O <20 <0.30 <SO <5.0 <20 <0.30 <SO <S.0 <20 <0.30 <SO <S.0 <20 <0.30 <SO <5.0 <20 <I <SO 160 <20 <0.30 <SO 34 <20 <0.30 <SO 2l0 <20 <0.30 <200 Bl <20 <0.30 <200 39 <20 <030 <SO 17 <20 <0.30 <SO 6.3 <20 <0.30 <50 <5.0 <20 <0.30 <SO <5.0 <20 <0.30 <SO <5.0 <20 <0.30 17 140 <20 <030 <SO 10 <20 <0.30 <SO <5.0 <20 <0.30 <SO S.2 <20 <0.30 <SO ll <20 <0.3~ <SO <S.0 <20 <0.30 <SO <5.0 <20 <030 <SO <5.0 <20 l2 <SO <5.0 <20 <0.30 <SO <5.0 <20 <0.30 <SO S.O <20 <030 1000 • !be influent and effluent samples (X)!lec:ted 011 2-11•99 wc:rc m-med in 1he f'idd, Table 2 ha bem corrected ID illustru= die proper analytical rai.:lt so SOOD S Suspended Solids (mg/L) <l.0 <5.0 S a <5.0 <S.O <5.0 <S.O <S.O <l.0 <S.O • <S.O 19 <5.0 <l.0 <S.O <S.O <5.0 <S.O <S.0 <5.0 <S.0 <5.0 <5.0 <5.0 l8 <5.0 <5.0 <l.0 <l.0 <5.0 <l.0 <S.0 • <l.0 <5.0 <5.0 <5.0 <5.0 <l.0 <5.0 V 9.S <5.0 <5.0 <S.0
Sample D,te Chloroform 1,1-Dichloroethane
Location (ug/L) (ug/L)
UM Influent 2/12/96 6 4.1
2113196 3 4.5
2f24/96 1.4 ~-6
2f2S/96 1.2 <1.0
2/18196 3.5 5.8
3/8196 <I.O 4.7
3/16/96 <I.O 5.5
4/3/96 <I.O 4.4
6/5/96 <1.0 4.9
7/1/96 <I.O 3.8
7/30/96 <1.0 4.1
Jln/96 <1.0 5.3
214/97 <I.O 5.5
S/12197 <I.O II
Rn/97 <1.0 5.8
11/13/97 <1.0 5.3
215198 <I.O 6.9
sn/9s <I.O 5
Rn/98 <1.0 3.6
l l/4/98 <I.O 2.9
21ll/99 <I.O 4.3
S/13/99 <I.O 4.4
8/S/99 <1.0 4.1
LM Influent 2/12/96 14 26
2f23/96 13 29
2/24/96 8.9 30
2f25/96 8.2 31
2/18196 3 32
3/8/96 <I.O 9.S
3/16/96 <LO 8.1
4/3/96 <1.0 7.3
5/3/96 <I.O 8.6
615196 <l.O 12
7/30/96 <1.0 17
11n/96 <1.0 II
214/97 1.6 9.8
(DUP) 214/97 I.S 9.0
5/12197 <1.0 5.3 " Rn/97 <I.O 13.0
11/13/97 <1.0 9.S
215198 <I.O 13.0
sn/98 <I.O 12.0
Rn/98 <1.0 16.0
I l/4/98 <I.O 13.0
2111/99 <I.O 13.0
S/13/99 <1.0 10.0
8/5/99 <1.0 7.8
Remedianon Performance Standard 3500
Table3
Groundwater Quality Summary
Upper/Lower Macon System
Macon/ Dockery Site
Richmond County, North Carolina
I, l -Dichloroethene Cis/trans-1,2-Dicbloroethene Methylene chloride
(ug/L) (ug/L) (ug/L)
1.6 5.8 <2.0
1.6 · 6.4 <2.0
1.8 6.4 <2.0
2.2 6.6 <2.0
1.4 8.6 <2.0
I 8.6 <2.0
1.8 9.2 <2.0
1.6 6.6 <2.0
1.8 7.7 <2.0
I.I 6.1 <2.0
2.1 8.6 <2.0
1.9 6.6 <2.0
1.6 7 <2.0
2.5 1.8 <2.0
1.8 7 <2.0
I.I 3.9 <2.0
1.6 6.7 <2.0
1.8 S.6 <2.0
1.6 6.4 <2.0
1.4 3.7 <2.0
2 5.1 <2.0
3.4 8.1 <2.0
3.3 6.5 <2.0
9.1 4.4 <2.0
II 4.9 <2.0
13 4.9 <2.0
13 5 <2.0
IS 5.6 <2.0
1.6 2.4 <2.0
1.8 2.4 <2.0
2.6 2.3 <2.0
2.7 2.9 <2.0
4.7 3.4 <2.0
6.6 <1.0 <2.0
3.3 2.2 <2.0
2.1 2.4 <2.0
1.8 2.1 <2.0
2.4 6.4 <2.0
<1.0 1.2 <2.0
1.8 <1.0 <2.0
1.9 1.2 <2.0
2.5 1.6 <2.0
I.I I <2.0
1.3 <1.0 <2.0
2.2 1.3 <2.0
1.4 <1.0 <2.0
1.0 <1.0 <2.0
7 70 '
T etrachlorocthene I, 1,1-Trichloroctbane
(ug/L) (ug/L)
4.8 <1.0
4.8 <1.0 ., 6 <1.0
6.9 <1.0
5 <1.0
3.8 <1.0
4.6 <1.0
4 <1.0
<1.0 <1.0
3.3 <1.0
3.3 <1.0 • 2.3 <J.0
2.5 <LO
<1.0 4.5
2.1 <1.0
1.6 <1.0
I.I <1.0
2.5 <1.0
12 <1.0
<l.O <1.0
I <1.0
1.6 <1.0
1.3 <1.0
2 14
2.1 IS
2.7 17
2.6 17
2.4 17
<1.0 2.,
<1.0 3.4
I 4
<1.0 4.2 • <1.0 5.3
<1.0 6.7
<1.0 ,.2
<1.0 4.4
<1.0 3.8
,2 <1.0
<1.0 4.4
<1.0 3.3
<1.0 4.1
<1.0 4.1
<1.0 4.4
<1.0 4.1
<1.0 3.7
<1.0 4.1
<LO 3.4
200
Sample Dato Trichloroethylcne Toluene Location (ug/L) (ug/L) UM Influent 2/l1196 12 IS 2/l3/96 12 12 ., 2fl4/96 14 9.7 2fl5l96 15 9.2 2/lS/96 14 2.9 3/8196 12 <1.0 3/16/96 12 <l.O 4/3/96 10 <l.O 6/5196 9.8 3.2 7/1/96 7.6 <l.O 7/30/96 9.8 <I.O lln/96 8.3 <LO 214/97 8.2 <LO 5/12197 4.1 <1.0 Sn/97 8.1 <l.O 11/13/97 3.9 <I.O 215/98 5.9 <l.O Sn/98 5.8 <1.0 Sn/98 6.2 <1.0 11/4/98 3.6 <1.0 2111199 4.4 <LO 5/13/99 5.3 <1.0 8/5199 4.2 <1.0 LM Influent 2/l1196 3.3 15 2fl3196 3.6 18 2124/96 4.5 17 2/l5/96 4.4 15 2/lS/96 4 4.2 3/8196 I.I <1.0 3/16/96 1.4 <1.0 4/3/96 4.7 <1.0 S/3196 4.6 <l.O 615196 4.9 4.6 7/30/96 4.1 <1.0 lln/96 4.5 <I.O 2/4/97 3.7 <1.0 (DUP) 214/97 3.1 <1.0 5/12197 8.3 <1.0 V 817/97 3.3 <1.0 11/13/97 1.9 <1.0 215/98 3.4 <l.O sn/98 3.7 <l.O 817/98 3.5 <1.0 11/4/98 3.0 <1.0 2/11/99 3.6 <1.0 5/13/99 3.7 <1.0 815/99 2.4 <1.0 Remediation Performance Standard 2.8 1000 Table 3 (Continued) Groundwater Quality Summary Upper/Lower !\-facon System Macon/Dockery Site Richmond County, North Carolina Chromium Barium Manganese Zinc (ug/L) (ug/L) (ug/L) (ug/L) <JO <50 36 120 <JO. <50 31 110 <JO <50 30 110 <JO <50 28 110 <10 <50 18 40 <JO <50 13 so <JO <50 20 50 <JO <50 9.3 26 <JO <50 <5.0 22 <JO <50 <5.0 <20 <JO <50 <5.0 <20 <JO <50 <5.0 <20 <10 36 <5.0 <20 <10 <50 12 <20 <10 <50 7.2 <20 <10 <50 28.7 <20 <10 <50 8.4 <20 <10 <50 16 <20 <10 <50 13 <20 <JO <50 52 <20 <10 <50 14 <20 <10 <50 II <20 <10 <50 <5.0 <20 <10 77 130 120 <JO 81 140 130 <10 86 160 160 <10 86 160 160 <10 100 150 240 <10 <50 72 52 <10 <50 53 57 <10 <50 72 44 <10 24 31 27 <10 <50 21 24 <10 <50 20 <20 <10 <50 6.4 <20 <10 34 19 <20 <10 34 16 <20 <10 <50 <5.0 V <20 <10 <50 <5.0 <20 <JO <50 55.1 <20 <10 <50 II <20 <10 <50 <S.0 <20 <10 <50 17 <20 <JO 58 99 <20 <10 <50 8.8 <20 <10 . <50 70 <20 <10 <50 <5.0 <20 50 1000 50 5000 Cadmium Lo,d Suspended Solich (ug/L) (ug/L) (mg/L) <0.30 4.8 <5.0 <0.30 4.S <5.0 <0.30 3.6 <5.0 <0.30 3.4 <5.0 <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 <0.30 3 10 <0.30 <3.0 13 <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 • <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 <0.30 <3.0 <S.0 <0.30 <3.0 NA <0.30 <3.0 <5.0 <0.30 <3.0 5 <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 49 <3.0 <5.0 <0.30 7.2 <5.0 <0.30 5.5 <S.0 <0.30 5 <5.0 <0.30 4.4 <5.0 <0.30 3.2 <S.0 <0.30 3.3 <5.0 <0.30 <3.0 7 <0.30 <3.0 <5.0 <0.30 <3.0 7 <0.30 <3.0 <5.0 • <0.30 <3.0 5 <0.30 <3.0 6 <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 <0.30 <3.0 NA V <0.30 <3.0 <5.0 <0.30 <3.0 <5.0 <0,30 <3.0 <S.0 <0.30 <3.0 <5.0 <0.30 5.0 40 <0.30 <3.0 9.0 25 <3.0 <S.O <0.30 6.4 <S.O 15
Well
Number
Upper
Dock,
MWJ5•
MWl5A
MWl8
Date
2/12/96
2/14/96
2/15/96
2/23/96
2/28196
512196
615196
7/1/96
7/31/96
11/8/96
'115191
5/12/97
8/5/97
11/12/97
2/4/98
5/5/98
8/5/98
11/3/98
'1110/99
5/12/99
8/5/99
'1112/96
512196
6/5/96
7/1/96
7/31/96
11/8/96
'115197
5/l'1197
8/5/97
11/12/97
2/4/98
5/5198
8/5/98
11/3/98
2/10/99
5/12/99
8/5/99
2/12/96
'1114/96
2/15/96
5/2/96
6/5/96
7/1/96
7/31/96
11/8/96
2/5/97
5/12/97
8/5/97
11/12/97
2/4/98
515198
815198
11/3/98
'1110199
5/12/99
8/S/99
Surveyed
Casing
Elevation (fl)
257.10
257.IO
257. JO
257.10
257.10
257.10
257.10
257.10
257. JO
257.10
257.10
257.10
257. IO
257. IO
257.10
257.10
257.10
257.10
257.10
257.10
257.10
257.29
2S7.29
257.29
257.29
257.29
257.29
257.29
257.29
257.29
257.29
257.29
257.29
257.29
257.29
257.29
257.29
2S7.29
242.54
242.54
242.54
242.S4
242.54
242.54
242.54
242.54
242.54
24254
242.54
242.54
242.54
242.54
242.54
242.54
242.54
242.54
242.54
Depth to Corrected
Groundwater Groundwater
(ft) Elevation (t)
36.47 220.63
36.96 220.14
37.43 219.67
38.80 218.30
37.07 220.03
38.08 219.02
37.04 220.06
38.76 218.34 ~ 40.25 216.85
38.56 218.54
37.45 219.65
37.07 220.03
38.66 218.44
42.23 214.87
33.45 223.65
33.55 223.55
40.74 216.36
44.12 212.98
43.16 213.94
44.94 212.16
45.51 211.53
34.77 222.52
36.02 221.27
35.96 221.33
36.89 220.40
38.20 219.09
36.16 221.13
35.53 221.76
35.33 221.96
36.88 220.41
40.04 217.25
31.91 225.38
31.97 225.32
38.55 218.74
41.61 215.68
40.53 216.76
42.32 214.97
43.03 214.26
30.99 211.55
32.80 209.74
33.62 208.92
34.40 208.14
32.30 210.24
34.02 208.52
36.S0 206.04
37.96 204.58
35.13 207.41
34.03 208.SI
33.90 208.64
37.84 204.70
30.26 212.28
36.90 205.64
42.56 199.98
46.49 196.05
45.18 197.36
46.27 196.27
43.52 199.02
Well °"" Total Xylmes Acetone N="" (ug/1..) (ug/1..) -"""'"" 2/131"}6 <3.0 <10 (DUP) 21131"}6 <3,0 <10 SM6 <3.0 <10 8/1"6 <3,0 <10 11n,w; <3.0 <10 ,1 215/97 <3.0 <10 5/13/97 <3.0 <10 "'"' <3.0 <10 I l/l'l/97 <3.0 <10 215/98 <3,0 <10 SIM'S <3.0 <10 8/6198 <3.0 <10 1113/98 <3.0 <10 2/11/99 <3.0 <10 SIi "1199 <3.0 <10 8/6199 <3,0 <10 Macon Source Area MW2A 2113196 <3,0 <10 S/1196 <3.0 <10 (DUP) SM6 <3.0 <10 713 J,"}6 <3.0 <10 11/6196 <3,0 <10 2/4197 <3.0 <10 5/12/97 <3.0 <10 8/6197 <60 <10 (DUPLICATE 2) l l/l'l/97 <6.0 <20 11/J'l/97 <6,0 <20 2/5/98 <IS <SO 5/MIB <IS <SO (DUP 2) S/Ml8 <IS <SO an,.,, <75 <250 (DUP-2) 8n"8 <75 <250 11/4/98 <75 <250 (DUP-2) 1114198 <75 <250 2/1°"9 <75 <250 (DUP-2) 2/1°"9 <75 <250 5/13199 <75 <250 (DUP-2) S/13/99 <75 <250 816199 <75 <250 (DUP-2) 816199 <75 <250 V Tablt 5 (Continutd) Groundwatu Quality Summary Maton/Docktry Sitt _Richmond Coun_!}:'_, North Carolina Chromium. Barium Beryllium Manganese Nickd (ug/L) ( .... ) (ug/L) ( .... ) (ug/L) ,. 320 <5,0 3500 40 " 370 <S.o 3700 <40 <10 ., <5.0 2400 <40 <10 86 <So 2500 <40 <10 " <5,0 2700 <40 <10 " <5.o 2500 <40 <10 " <5,0 2500 q{) <10 92 <5.o <50 <40 <10 140 <5.0 2480 <40 <10 " <5.0 2800 <40 <10 130 <5.o 2500 <40 <10 llO <5,0 2<00 <40 38 310 <5.o 3000 <40 20 190 <5.0 2800 <40 <10 llO <5,0 2500 <40 <10 ISO <5.o 2500 <40 <10 190 <5,0 140 <40 <10 ISO <5,0 26 <40 <10 140 <5,0 19 <40 <10 120 <5,0 25 <40 <10 llO <5.0 13 <40 <10 100 <S.o <5,0 <40 <10 " <5.0 6 <40 <10 100 <5.0 6,7 <40 <10 103 <5.0 25.3 <40 <10 106 <S.o 41.4 <40 <10 110 <S.o .. , <40 <10 120 <5,0 <5,0 <40 <10 120 <5,0 <5.0 <40 <10 llO <S.o ,., <40 <10 110 <5,0 <S.o <40 <10 120 <5.0 <5.0 <40 <10 130 <S.o <5,0 <40 <10 130 <5,0 <S.o <40 <10 130 <5,0 <5.o <40 21 130 <S.o 12 <40 <10 120 <5,0 9,0 <40 <10 130 <5,0 5,7 <40 <10 130 <5,0 <5,0 <40 Vanadium. Zinc Cadmium Lad M""")' Cyanide Suspended Solid, (ug/L) (ug/L) (ug/L) (ug/1..) ( .... ) (mg/I..) (mgtl.) 130 230 <ti.JO 32 NA <10 llOO 140 250 <0.30 28 NA 19 1000 <SO <20 <ti.JO <3.0 NA <10 IS <SO " <ti.JO <3.0 NA NA 79 <50 <20 <l).JO <3,0 NA NA ,. <SO <20 <0.30 <3.0 NA NA .. <50 <20 <l).JO <3 0 NA NA " <SO 20 <l).JO <3.0 NA NA 28 <SO 48.1 <I 4.3 NA NA ISO <SO <20 <0.30 3.8 NA NA 13 <SO 30 <l),30 4.7 NA NA " <50 <20 <0.30 ., NA NA S1 74 140 Ll 14 NA NA 590 <SO .. <l),]0 8.1 NA NA 160 <50 28 <O 30 <3,0 NA NA 30 <SO 42 <l)_Jo ,., NA NA 130 • <SO 34 <0.30 <3.0 NA <10 " <SO <20 <l)_Jo <3.0 NA <10 7 <50 <20 <0.30 <3.0 NA <10 7 <SO 31 <0.30 <3.0 NA NA IS <SO <20 <l).30 <3.0 NA NA <5.0 <SO <20 <l)_Jo <3.0 NA NA NS <50 <20 <0.30 <3.0 NA NA <S.o <SO <20 <0.30 <3.0 NA NA <S.o <SO <20 <I <3.0 NA NA 9 <SO <20 <I <3.0 NA NA 8 <So <20 <l)_Jo ,., NA NA <5.0 <SO <20 <0.30 <3,0 NA NA • <SO <20 <l).30 <3.0 NA NA <50 <So <20 <l).30 <3.0 NA NA <S.O <50 <20 <l),30 <3,0 NA NA <S.o <SO <20 <l),]0 <3.0 NA NA <SO <SO <20 <0.30 <3.0 NA NA <S.O <SO <20 <l).30 <3.0 NA NA <So <50 " <0.30 <3.0 NA NA s,o <SO " <O.JO <3.0 NA NA 6,0 <SO 22 <0.30 <3.0 NA NA 60 <SO 24 <0.30 9.1 NA NA <5,0 <So 72 ~ 6.9 NA NA <5,0 • I ,o,lo V V
t
1::. W~~E MCDEVITT
~: SEc~ETARY :·.
:.:-: .. . .. ,. . . . .
~--{~;\');€~~\:,:
/1<' •• ,,-~>··
;~:1~.-->:.' ' ...
bf J;~t~::.i:t:.:~~-; .-:~it~: ~~;
Ms. Giezelle Bennett
Remedial Project Manager
Superfund Branch
Waste Management Division
US EPA Region IV
61 Forsyth Street, 11 th Floor
Atlanta, Georgia 30303
NORTH ~ROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WASTE MANAGEMENT
July 23, 1999
RE: Annual Summary Status Report -
June I, 1998 to June!, 1999
Macon/Dockery NPL Site
Cordova, Richmond County
Dear Ms. Bennett:
The Superfund Section of the North Carolina Department of Environment and
Natural Resources (NC DENR) has received and reviewed the Annual Summary
Status Report -June I, 1998 to June I, 1999 for the Macon/Dockery National
Priorities List (NPL) Site. The Superfund Section offers the attached comments.
The Superfund Section of the NC DENR appreciates the opportunity to comment
on this document. If you have any questions or comments, please feel free to contact me at [phone], extension 349.
Attachment
Sincerely,
David B. Mattison, CHMM
Environmental Engineer
NC Superfund Section
401 OBERLIN ROAD, SUITE I SO, RALEIGH, NC 27605
PHONE 919.733.,4996 FAX 91 9-7 l 5-3605 AN EQUAL OPPORTUNITY/ AFFIRMATIVE ACTION EMPLOYER -50% RECYCLED/I 0% POST•CONSUMER PAPER
Ms. Giczel/c Rennell
July 23, 1999
Page I •
ANNUAL SUMMARY STATUS REPORT-JUNE 1, 1998 TO JUNE 1, 1999 Table of Contents/List of Tables
I. Please correct the titles given below to accurately reflect the titles of the appropriate
section and tables as given in the text.
Section 2.4.2
Section 2.4.3
Table 6
Table 7
Table 8
I, I Dichloroethene Exceedance
Cadmium Exceedance
Air Quality Summary
Summary of Mass YOC Removal Estimates
Proposed 1999/2000 Sampling Schedule
Section 2.1 Flow Rates and Totals
2. The system flow totals given in Section 2.1 do not agree with the system flow totals given in Table I. Please clarify this discrepancy.
Section 2.4 Effluent Concentrations
3. The table of manganese effluent exceedances given in Section 2.4 gives the wrong year in the date for the first six entries. The 7-9-99, 9-10-99, 10-2-99, 11-4-99 and 12-1-99 manganese concentrations for the Upper Macon Source Area groundwater remediation system should be corrected to reflect a 1998 date. Furthermore, the 10-2-99 manganese concentration for the Lower Dockery groundwater remediation system should be corrected to reflect a 1998 date. Please correct these oversights.
4. The table of manganese effluent exceedances given in Section 2.4 indicates that the 2-11-· 99 Lower Dockery groundwater remediation system effluent contained 260 micrograms
per liter (µg/1) manganese. However, previous documentation indicates that the February 11, 1999 Lower Dockery influent and effluent samples were incorrectly labeled at the
time of sampling or during laboratory analysis and that the 260 µg/1 manganese actually originated from the Lower Dockery influent. Please clarify this discrepancy.
Section 2.4.1 Manganese Exceedances
3. The third sentence of Section 2.4.1 should state that "In a letter dated March 28, 1995, the MDSG requested that NC DENR allow for the discharge of treated water from the air stripper system directly to the infiltration gallery WITHOUT treating for manganese."
Please correct these oversights.
Section 4.0 1998/1999 Schedule
4. The title of this section should actually be "1999/2000 Schedule." Please correct this oversight in Section 2.4 as well as in the Table of Contents.
Ms. Giczelle Bcnncll
July 23. 1999
Page 2
Table I Summary of Groundwater Flow Totals
•
5. The monthly flow total for the Upper/Lower Macon groundwater remediation system for May 1998 is 875,945 gallons. However, previous documentation indicates that the monthly flow total for the Upper/Lower Macon groundwater remediation system for May 1998 is 876,945 gallons. Please clarify this discrepancy.
Table 3 Groundwater Quality Summary
6. The portion of Table 3 reflecting the Lower Dockery effluent results was inadvertently
omitted. Furthermore, the portion of Table 3 reflecting the Upper Macon/Lower Macon influent volatile organic compound (VOC) concentrations was inadvertently omitted. Please correct these oversights.
Table 4 Groundwater Level Data
7. The portion of Table 4 reflecting the groundwater level data for groundwater monitoring wells MW-15, MW-15A and MW-18 was inadvertently omitted. Please correct this oversight.
Table 5 Groundwater Quality Summary
8. Table 5 indicates that the duplicate groundwater sample collected on May 13, 1999 from groundwater monitoring well MW-2A (DUP-2) contained no detectable concentrations of cadmium (at a laboratory quantitation limit of 3.0-µg/l). However, laboratory documentation included in the Monthly Progress and O&M Report -May 1999, indicates that the duplicate groundwater sample collected on May 13, 1999 from groundwater monitoring well MW-2A (DUP-2) contained no detectable concentrations of cadmium (at
a laboratory quantitation limit of 0.30-µg/l). Please clarify this discrepancy.
Ms. Giezelle Bennett
Remedial Project Manager
Superfund Branch
Waste Management Division
US EPA Region IV
61 Forsyth Street, II th Floor
Atlanta, Georgia 30303
NORTH .ROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WASTE MANAGEMENT
July 22, 1998
RE: Annual Summary Status Report
June 1997 to June 1998
Macon/Dockery NPL Site
Cordova, Richmond County
Dear Ms. Bennett:
The Superfund Section of the North Carolina Department of Environment and
Natural Resources (NC DENR) has received and reviewed the Annual Summary
Status Report for the Macon/Dockery National Priority List (NPL) Site. The
Superfund Section offers the attached comments.
The Superfund Section of the NC DENR appreciates the opportunity to comment
on this document. If you have any questions or comments, please feel free to call
me at [phone], extension 349.
Attachment
Sincerely,
David B. Mattison, CHMM
Environmental Engineer
NC Superfund Section
401 OBERLIN ROAD, SUITE 150, RALEIGH, NC 27605
PHONE 919-733·4996 FAX 919•715-3605
AN EQUAL OPPORTUNITY/ AFFIRMATIVE ACTION EMPLOYER· SO% RECYCL.ED/10% POST-CONSUMER PAPER
Ms. Giezelle Bennett
July 22, 1998
Page 1
ANNUAL SUMMARY STATUS REPORT
Table of Contents
•
1. The Table of Contents indicates that Regulatory Correspondence was included as
Appendix A. However, Appendix A was inadvertently omitted and was never referenced
in the text of this report. Please correct this oversight.
Section 2.4 Effiuent Concentrations
2. The table included in this section indicates that the Lower Dockery effluent sample
collected on February 5, 1998 contained 230 micrograms per liter (µg/1) manganese.
However, laboratory documentation and Table 3 indicate that the Lower Dockery effluent
sample collected on February 6, 1998 contained 250 µg/1 manganese. Please clarify this
discrepancy.
3. The Superfund Section recognizes that the March 28, 1995 letter from Ms. Giezelle
Bennett to Mr. Kenny Gulledge provides for the discharge of treated groundwater to the
on-site infiltration gallery without treating for manganese. Please revise this section to
reflect the manganese exceedance as well as the discharge requirements of the NC DENR
Division of Water Quality.
Table 1 Summary of Groundwater Flow Totals
4. Table 1 indicates that the Upper Dockery total discharge for September 1997 was 52,256
gallons. However, previous documentation indicates that the Upper Dockery total
discharge for September 1997 was 56,256 gallons. Please clarify this discrepancy. If the
Upper Dockery total discharge is in error for September 1997, please make the
appropriate adjustments to the total discharge, monthly average discharge rates and the
total annual discharge.
5. Table 1 indicates that the Upper/Lower Macon flow meter reading for May 1998 totaled
875,945 gallons. This information agrees with the data presented in the section entitled,
Results of Sampling and Testing and Other Data Received, of the Monthly Progress and
O&M Report -May 1998 (May 1998 Report). However, Table 8 of the May 1998
Report and Table 8 of the Annual Summary Status Report -June 1997 to June 1998
indicate that the Upper/Lower Macon system had a total discharge of 876,945 gallons for
May 1998. Please clarify this discrepancy.
Ms. Giezelle Bennett
July 22, 1998
Page 2
•
6. The monthly average flow rate data does not agree with the monthly average flow rate
data as provided in the respective Monthly Progress and O&M Reports. Furthermore,
much of the monthly average flow rate data does not agree with the monthly flow and
operational percentages. Please clarify these discrepancies.
Table 2 Summary of Operational Percentages
7. Table 2 indicates that the Lower Dockery groundwater treatment system was operational
94% of August 1997. This information agrees with the data presented in the section
entitled, Problems and Delays, of the Monthly Progress and O&M Report -August 1997
(August 1997 Report). However, the fourth item of the section entitled, Results of
Sampling and Testing and Other Data Received, in the August 1997 Report indicates that
the Lower Dockery groundwater treatment system was operational 96% of August 1997.
Please clarify this discrepancy.
8. Table 2 indicates that the Upper Dockery groundwater remediation system was
operational 58% of January I 998. This information agrees with the data presented in the
section entitled, Results of Sampling and Testing and Other Data Received, of the
Monthly Progress and O&M Report -January 1998 (January 1998 Report). However, the
first item in the section entitled, Problems and Delays, of the January 1998 Report
indicates that the Upper Dockery groundwater remediation system was operation
approximately 84% of January 1998. Please clarify this discrepancy.
9. Table 2 indicates that the Upper and Lower Macon groundwater remediation systems
were operational 71 % of January I 998. This information agrees with the data presented
in the section entitled, Results of Sampling and Testing and Other Data Received, of the
January I 998 Report. However, the second item in the section entitled, Problems and
Delays, of the January I 998 Report indicates that the Upper and Lower Macon
groundwater remediation systems were each in operation approximately 97% of January
1998. Please clarify this discrepancy.
I 0. Table 2 agrees with the operational percentages provided in the section entitled, Results of
Sampling and Testing and Other Data Received, of the Monthly Progress and O&M
Report -April 1998 (April 1998 Report). However, this information does not agree with
the first five items in the section entitled, Problems and Delays, of the April 1998 Report.
Please clarify these discrepancies.
Ms. Giezelle Bennett
July 22, 1998
Page 3
•
11. Table 2 indicates that the Upper Macon groundwater remediation system was operational
87% of the time in May 1998 and that the Lower Macon groundwater remediation system
was operational 77% ofMay 1998. This agrees with the data presented in the section
entitled, Results of Sampling and Testing and Other Data Received, of the Monthly
Progress and O&M Report -May 1998 (May 1998 Report). However, based on the
information provided in the section entitled, Problems and Delays, of the May 1998
Report, the Upper Macon system was operational 90% of May 1998 and the Lower
Macon system was operational 84% of May 1998. Please clarify these discrepancies.
12. The overall average operational percentages for each of the groundwater remediation
systems do not agree with the monthly data as presented in Table 2. Please clarify this
discrepancy.
Table 3 Groundwater Quality Summary -Upper Dockery
13. Table 3 indicates that the Upper Dockery effluent sample collected on November 13, 1997
contained no detectable concentrations of total xylenes and acetone at laboratory
quantitation limits of 1.0 micrograms per liter (µg/1) and 1.0 µg/1, respectively. However,
laboratory documentation indicates that the Upper Dockery effluent sample contained no
detectable concentrations of total xylenes and acetone at laboratory quantitation limits of
3.0 µg/1 and 10.0 µg/1, respectively. Please clarify this discrepancy.
14. Table 3 indicates that the Upper Dockery effluent sample collected on December 5, 1997
contained no detectable concentrations of total xylenes and acetone at laboratory
quantitation limits of 1.0 µg/1 and 1.0 µg/1, respectively. However, laboratory
documentation indicates that the Upper Dockery effluent sample contained no detectable
concentrations of total xylenes and acetone at laboratory quantitation limits of 3. 0 µg/1 and
10.0 µg/1, respectively. Please clarify this discrepancy.
15. Table 3 indicates that the Upper Dockery effluent sample collected on November 13, 1997
contained 55.6 µg/1 barium. However, laboratory documentation indicates that the Upper
Dockery effluent sample contained 67.9 µg/1 barium. Please clarify this discrepancy.
Table 3 Groundwater Quality Summary -Lower Dockery
16. Table 3 indicates that the Lower Dockery effluent sample collected on March 5, 1998
contained no detectable concentrations of methylene chloride at a laboratory quantitation
limit of 1.0 µg/1. However, laboratory documentation indicates that the Lower Dockery
effluent sample contained no detectable concentrations of methylene chloride at a
laboratory quantitation limit of2.0 µg/1. Please clarify this discrepancy.
Ms. Giezelle Bennett
July 22, 1998
Page 4
•
17. Table 3 indicates that the Lower Dockery effiuent sample collected on April 3, 1998
contained no detectable concentrations of methylene chloride at a laboratory quantitation
limit of 1.0 µg/1. However, laboratory documentation indicates that the Lower Dockery
effiuent sample contained no detectable concentrations of methylene chloride at a
laboratory quantitation limit of2.0 µg/1. Please clarify this discrepancy.
18. Table 3 indicates that the Lower Dockery effiuent sample collected on December 5, 1997
was not analyzed for zinc content. However, laboratory documentation indicates that the
Lower Dockery effiuent sample contained no detectable concentrations of zinc at a
laboratory quantitation limit of 20 µg/1. Please clarify this discrepancy.
Table 3 Groundwater Quality Summary -Upper/Lower Macon System
19. Table 3 indicates that the Upper/Lower Macon system effluent sample collected on May 7,
1998 contained no detectable concentrations of suspended solids at a laboratory detection
limit of5.0 milligrams per liter (mg/I). However, laboratory documentation indicates that
the Upper/Lower Macon system effiuent sample collected on May 7, 1998 was not
analyzed for suspended solids content. Please clarify this discrepancy.
Table 5 Groundwater Quality Summary
20. Table 5 indicates that the groundwater sample collected from the groundwater monitoring
well MW-I 5 on February 5, 1998 contained 0. 7 µg/1 mercury. However, laboratory
documentation indicates that the MW-15 groundwater sample contained 0.66 µg/1
mercury. Please clarify this discrepancy.
21. Table 5 indicates that the groundwater sample collected from the groundwater monitoring
well MW-15 on May 6, 1998 contained 0.8 µg/1 mercury. However, laboratory
documentation indicates that the MW-15 groundwater sample contained 0. 76 µg/1
mercury. Please clarify this discrepancy.
22. Table 5 indicates that the duplicate groundwater sample (DUP-1) collected from the
groundwater monitoring well MW-15 on February 5, 1998 contained 0.6 µg/1 mercury.
However, laboratory documentation indicates that the MW-15 duplicate groundwater
sample contained 0.63 µg/1 mercury. Please clarify this discrepancy.
Ms. Giezelle Bennett
July 22, 1998
Page 5
Table 6 Air Quality Summary
•
23. The results of the air sampling conducted along the property line on May 7, 1998 were
inadvertently omitted from Table 6. Please correct this oversight.
24. Table 6 indicates that air sampling was not conducted at sample points VE-01, OW-I,
OW-3 and OW-5 during the May 1998 sampling event. Please provide justification for
not collecting air quality samples at these sampling points or provide a schedule for
completing this task.
I I •
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
REGION4
61 Forsyth Street, S.W.
Atlanta, Georgia 30303-3104
4WD-NSMB
Technical. Cdminittee
c/o David L Jones ·
Ingersoll-Rand Company
114 Spencer Rd , ,
Cassopolis, Ml 49031
SUBJ: Macon/Dockery NPL Site
Cordova, North Carolina
Dear Mr. Jones:
· February 19, 1998
RECEIVED
1:EB 23 1998
SUPERFUND SECTIQ~1
Attached are comments from the NC DENR on various Macon/Dockery monthly
and annual reports. Please send a letter that responds to each of these comments no later
than March 12, 1998. In addition, please make sure that the comments are addressed and
the information is corrected in all future reports.
If you have any questions, please give me a call at 404/562-8824.
Sincere! .
~ . /:~ .-:;f-~
··· Gieielle S. Bennett
Remedial Project Manager
cc: David Mattison, NCDEHNR
Mike Profit, COM
Steve lrminger, AES
Ms. Giezelle Bennett
Remedial Project Manager
Superfund Branch
Waste Management Division
US EPA Region IV
6 I Forsyth Street, I Ith Floor
Atlanta, Georgia 30303
• NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WASTE MANAGEMENT
February 9, I 998
RE: Response to Comments -Annual Summary Status Report
November 1997 Monthly Progress and O&M Report
December 1997 Monthly Progress and O&M Report
Macon/Dockery NPL Site
Cordova, Richmond County
Dear Ms. Bennett:
The Superfund Section of the North Carolina Department of Environment and
Natural Resources (NC DENR) has received and reviewed the above documents
for the Macon/Dockery National Priority List (NPL) Site. The Superfund Section
offers the attached comments.
The Superfund Section of the NC DENR appreciates the opportunity to comment
on these documents. If you have any questions or comments, please feel free
to call me at [phone], extension 349.
Attachment
~
. ;e~(J 9 f -./.L ~ ~ ~ 1~ · CHl-1.'1
dB. Matti;d[~ CHMM
Environmental Engineer
NC Superfund Section
401 OBERI..IN ROAD, SUITE 150, RALEIGH, NC 27605
PHONE[phone] FAX [phone]
AN EQUAL OPPORTUNITY/ AFFIRMATIVE ACTION EMPLOYER· 50% RECYCLED/10% POST-CONSUMER PAPER
Comments
Page 1
Response to Comments -Annual Summary Status Report
. Table 7 -Summary of Mass VOC Removal Estimates
•
1. The revised Table 7 included with the Response to Comments is incomplete. The table
does not include those results for the Macon Source Area system nor the Upper/Lower
Macon system. Additionally, the values provided for Average Total VOC Concentration
and Pounds ofVOC Removed For Month are incorrect in some cases. Please correct
these oversights.
Monthly Progress and O&M Report
November 1997
Results of Sampling and Testing and Other Data Received
1. The third item in this section indicates that the results of air quality sampling are included
as Table 6. However, Table 6 was inadvertently omitted. Please correct this oversight.
Table 1 Groundwater Quality Summary
2. This table indicates that the Upper Dockery effluent sampling event on November 13,
1997 yielded a barium concentration of55.6 micrograms/liter (µg/L). However, the
laboratory documentation indicates that the Upper Dockery effluent contained 67.9 µg/L
barium. Please clarify this discrepancy.
Table 4 Groundwater Quality Summary
3. The note at the bottom of this table indicates that the Upper/Lower Macon System
effluent sample collected on July 25, 1997 was analyzed for manganese only. However
the table indicates that no detectable concentrations of the other parameters were
detected. Please correct this table to reflect that no analyses, other than that for
manganese, were conducted.
4. This table indicates that the Upper/Lower Macon System effluent sampling event on April
8, 1997 yielded a barium concentration of200 µg/L and a manganese concentration of30
µg/L. However, the laboratory documentation for that sampling event indicates that the
Upper/Lower Macon System effluent contained no detectable concentrations of barium or
manganese. Please clarify these discrepancies.
Comments
Page 2
Table 5
•
Groundwater Quality Summary
l
5. This table indicates that the monitoring well MW-15 sampling event on November 12,
1997 yielded a barium concentration of 3 56 µg/L. However, the laboratory
documentation for that sampling event indicates that monitoring well MW-15 contained
128 µg/L of barium. Please clarify this discrepancy.
6. This table indicates that the monitoring well MW-24 sampling event on November 12,
1997 yielded no detectable concentrations oflead. However, the laboratory
documentation for that sampling event indicates that monitoring well MW-24 contained
4.3 µg/L oflead. Please clarify this discrepancy.
7. This table indicates that the monitoring well MW-I I sampling event on November 13,
1997 yielded a zinc concentration of 45 µg/L. However, the laboratory documentation for
that sampling event indicates that monitoring well MW-I I contained 20.7 µg/L of zinc.
Please clarify this discrepancy.
8. This table indicates that a laboratory analysis for suspended solids was not conducted for
the monitoring well MW-13-sampling event on November 11, 1997. However, the
laboratory documentation for that sampling event indicates that monitoring well MW-13
contained 84 milligrams per liter (mg/L) suspended solids. Please clarify this discrepancy.
Table 7 Groundwater Level Data
9. This table indicates that the depth to groundwater at monitoring well LM-5 on August 5,
1997 was 66.68 feet. However previous documentation indicates that the depth to
groundwater at monitoring well LM-5 on August 5, 1997 was 66.84 feet. Please clarify
this discrepancy.
Table 8 Summary of Mass VOC Removal Estimates
10. The values provided for Average Total VOC Concentration and Pounds ofVOC
Removed For Month are incorrect in some cases. Please correct these oversights.
Comments
Page 3
Laboratory Analytical Results
•
11. The laboratory documentation indicates that duplicate samples (Duplicate-I and
Duplicate-2) were collected on November 12, 1997. However, there is no indication
where these samples originated. Please provide details as to where these duplicate
groundwater samples were collected. Although the groundwater sampling personnel may
not indicate on the chain of custody documentation where the duplicate samples
originated, groundwater sampling records should be maintained to document duplicate
sampling activities.
Monthly Progress and O&M Report
December 1997
Table 1 Groundwater Quality Summary
I. This table indicates that the Upper Dockery effluent sampling event on November 13,
1997 yielded a barium concentration of55.6 micrograms/liter (µg/L). However, the
laboratory documentation for that sampling event indicates that the Upper Dockery
effluent contained 67.9 µg/L barium. Please clarify this discrepancy.
2. Laboratory documentation included in the Monthly Progress and O&M Report does not
include the results of the zinc analysis for the Upper Dockery effluent sampling event on
December 5, 1997. However Table I indicates that laboratory analysis did not detect zinc
above detection limits. Pleai;e provide complete documentation of the zinc analysis or
note in Table I that the samples were "not analyzed" for zinc. This will avoid
unintentionally stating that an effluent sample was collected and laboratory analysis was
unable to detect zinc above the detection limits.
Table 2 Groundwater Quality Summary
3. This table includes the results of the Lower Dockery System Influent sampling results
rather than the Lower Dockery System Effluent sampling results. Please correct this
oversight.
Comments
Page4
Table 3
•
Groundwater Quality Summary
l
4. Laboratory documentation included in the Monthly Progress and O&M Report does not
include the results of the zinc analysis for the Upper Macon Source Area System effluent
sampling event on December 5, 1997. However Table 3 indicates that laboratory analysis
did not detect zinc above detection limits. Please provide complete documentation of the
zinc analysis or note in Table 3 that the samples were "not analyzed" for zinc. This will
avoid unintentionally stating that an effluent sample was collected and laboratory analysis
was unable to detect zinc above the detection limits ..
Table 4 Groundwater Qualjty Summary
5. The note at the bottom of this table indicates that the Upper/Lower Macon System
effluent sample collected on July 25, I 997 was analyzed for manganese only. However
the table indicates that no detectable concentrations of the other parameters were
detected. Please correct this table to reflect that no analyses, other than that for
manganese, were conducted.
6. This table indicates that the Upper/Lower Macon System effluent sampling event on April
8, 1997 yielded a barium concentration of200 µg/L and a manganese concentration of30
µg/L. However, the laboratory documentation for that sampling event indicates that the
Upper/Lower Macon System effluent contained no detectable concentrations of barium or
manganese. Please clarify these discrepancies.
7. Laboratory documentation included in the Monthly Progress and O&M Report does not
include the results of the zinc analysis for the Upper/Lower Macon System effluent
sampling event on December 5, 1997. However Table 4 indicates that laboratory analysis
did not detect zinc above detection limits. Please provide complete documentation of the
zinc analysis or note in Table 4 that the samples were "not analyzed" for zinc. This will
avoid unintentionally stating. that an effluent sample was collected and laboratory analysis
was unable to detect zinc above the detection limits.
Table 8 Summary of Mass VOC Removal Estimates
8. The values provided for Average Total VOC Concentration and Pounds ofVOC
Removed For Month are incorrect in some cases. Please correct these oversights.
t)
State of North Carolina
Department of Environment,
Health, and Natural Resources
Division of Waste Management
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
William L. Meyer, Director September 8, 1997
Ms. Giezelle Bennett
Remedial Project Manager
Superfund Branch
Waste Management Division
US EPA Region IV
61 Forsyth Street, 11th Floor
Atlanta, Georgia 30303
RE: Annual Summary Status Report
June 1, 1996 to June I, 1997
Macon/Dockery Site
Cordova, Richmond County
Dear Ms. Bennett:
The Superfund Section of the North Carolina Department of Environment, Health and Natural
Resources (NC DEHNR) has received and reviewed the Annual Summary Status Report (June 1,
1996 to June 1, 1997) for the Ma1:on/Dockery National Priority List (NPL) Site and offers the
attached comments.
The Superfund Section of the NC DEHNR appreciates the opportunity to comment on this
document. If you have any questions or comments, please feel free to call me at [phone],
extension 349.
Attachment
Sincerely, &~t~HM~
Environmental Engineer
NC Superfund Section
P .0. Box 29603. Raleigh, North Carolina 27611-9603 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Aclion Employer ~Recycled/ 10% Posl•Consumor Poper
Comments
Page I
Annual Summary Status Report
June 1, 1996to June 1, 1997
General
•
I. The chain of custody should NOT indicate the location of duplicate sampling activities.
The purpose of the duplicate sample is to estimate the field and laboratory variability of
a given contaminant associated with a population (i.e., a specific sampling location).
The chain of custody should not provide sampling information that may lead to bias in
the laboratory analysis of the sample.
2. The cleanup concentrations are Jess than 10 µg/L for many contaminants of concern at
this site. Therefore, to make any assumptions regarding achieving the groundwater
cleanup standards, laboratory analysis of groundwater samples at quantitative levels
beneath the groundwater cleanup criteria must be made. Separate laboratory runs for • the various compounds may be required so that contract laboratory program detection
limits are maintained for all analytes. In some cases, Table 3 and Table 5 imply that
several contaminants are no longer present when the detection limit was increased an
order of magnitude. Please make sure that all future analyses are conducted with the
appropriate detection limits.
Section 2.4 Effluent Concentrations
3.· The third sentence in this section states that the effluent sample analytical results have
been below the performance standard concentrations. However, Table 3 -Summary of
Influent and Effluent Analytical Results indicates that the Upper Macon Source Area
system effluent exceeded the performance standard concentration for manganese in July,
1996, September, 1996 and May, 1997. The Superfund Section recognizes that the
March 28, 1995 letter from Ms. Giezelle Bennett to Mr. Kenny Gulledge provides for the
discharge of treated groundwater to the onsite infiltration gallery without treating for
manganese. However, this section should be revised to reflect the manganese exceedance
as well as the discharge requirements of the NC DEHNR Division of Water Quality.
Table 1 -Summary of Groundwater Flow Totals
4. The Monthly Flow data for the following groundwater treatment systems does not
correspond with the Monthly Flow data as provided in the respective Monthly Progress
and O&M Reports. Please clarify these discrepancies. If the Annual Summary Status
Report is in error, please correct Table 7 -Summary of Mass VOC Removal Estimates,
including the recalculation of the pounds of volatile organic compounds (VOCs) removed
per month.
Comments
Page 2
Upper/Lower Macon
Lower Dockery
Upper Dockery
Date
June 1996
July 1996
September 1996
•
Monthly Progress Report Annual Summary Report
Monthly Flow Monthly Flow
(gallons) (gallons)
172,800 48,305
213,747 151,827
218,330 149,420
5. The Monthly Average Flow Rate data does not agree with the Monthly Average Flow
Rate data as provided in the respective Monthly Progress and O&M Reports. Please
clarify this discrepancy.
Table 2 -Summary of Operational Percentages
6. The Monthly Operational Percentage for the Macon Source Area groundwater treatment
system is given as 77 percent(%) for September 1996. Page 2 of the September 1996
Monthly Progress and O&M Report (Sept 1996 Report) states that the operational
percentage for the Macon Source Area system is 53%. However, page 3 of the Sept 1996
Report states that the operational percentage for the Macon Source Area system is 77%.
Please clarify this discrepancy.
Table 3 -Summary of Influent and Effluent Analytical Results
7. The results of duplicate sample analysis for the Upper Dockery influent samples collected
on April 3, 1996 and November 7, 1996 are incomplete. Additionally, the results of the
sample analysis for the Upper Dockery effluent sample collected on May 3, 1996 are
incomplete. Either the documentation of the sample analysis was inadvertently not
included in the respective Monthly Progress and"O&M Report or the sample analysis was
not performed. Please provide documentation of the sample analysis results or note in
Table 3 that the samples were "not analyzed" for those constituents. This will avoid
unintentionally stating that groundwater samples were collected and laboratory analysis
was unable to detect those constituents above the detection limits.
8. The sample analysis results for the Lower Dockery effluent sample collected on August
1, 1996 are actually the results for the Lower Dockery effluent sample collected on
September 4, I 996. Please correct this oversight and insert the correct Lower Dockery
effluent sample results for the sample collected on August 1, 1996.
Comments
Page 3
•
9. The results of duplicate sample analysis for the Lower Dockery effluent samples collected on May 3, 1996 are incomplete. Either the documentation of the sample analysis was inadvertently not included in the respective Monthly Progress and O&M Report or the sample analysis was not performed. Please provide documentation of the sample analysis results or note in Table 3 that the samples were "not analyzed" for those constituents. This will avoid unintentionally stating that groundwater samples were collected and laboratory analysis was unable to detect those constituents above the detection limits.
I 0. In accordance with the July 17, 1996 letter from Ms. Giezelle Bennett to Mr. Kenny Gulledge, the Upper Macon Source Area influent and effluent systems were not sampled and analyzed for mercury. Please indicate in Table 3 that the samples were "not analyzed" for those constituents. This will avoid unintentionally stating that groundwater samples were collected and laboratory analysis was unable to detect those constituents above the detection limits.
11. Table 3 indicates that the Upper Macon Source Area effluent sample collected on February 4, 1997 contained 1600 micrograms per liter (µg/L) of barium. The results of the laboratory analysis indicate the presence of barium at I 60 µg/L. Please correct this oversight.
Table 5 -Groundwater Quality Summary
12. In accordance with the July 17, 1996 letter from Ms. Giezelle Bennett to Mr. Kenny Gulledge, no monitoring wells after July 17, 1996 were sampled and analyzed for cyanide. Additionally, monitoring wells MW-2A, MW-9, MW-11, MW-16, MW-21, MW-22, MW-24 and MW-25 were not sampled and analyzed for mercury. Please indicate in Table 5 that the samples were "not analyzed" for those constituents. This will avoid unintentionally stating that groundwater samples were collected and laboratory analysis was unable to detect those constituents above the detection limits.
Additionally, laboratory documentation included in the Monthly Progress and O&M Reports does not include the results of the ethyl benzene analysis for most of the samples collected and analyzed. However Table 5 indicates that the results of the sample analysis did not detect ethylbenzene above detection limits. Please provide complete documentation of the ethylbenzene analysis or note in Table 5 that the samples were "not analyzed" for ethylbenzene. This will avoid unintentionally stating that groundwater samples were collected and laboratory analysis was unable to detect ethylbenzene above the detection limits.
•
Comments
Page4
13.
14.
15.
16.
The following results of sample analysis are incomplete. Either the documentation of the
sample analysis was inadvertently not included in the respective Monthly Progress and
O&M Report or the' sample analysis was not performed. Please note that pages 23 and 25
of the results of the laboratory analysis were inadvertently omitted from the February
1997 Monthly Progress and O&M Report. Please provide documentation of the sample
analysis results or note in Table 5 that the sample was "not analyzed."
Sample Location Date of Sample Collection
MW-19 (duplicate) May 2, 1996
MW-23 (duplicate) May 3, 1996
MW-2A February 4, 1997
MW-13 February 4, 1997
MW-23, February 4, 1997
MW-15 February 5, 1997
MW-19 February 5, 1997
Table 5 suggests that the duplicate samples collected on November 7, 1996 from
monitoring wells MW-15 and MW-16 contained no detectable concentrations of total
suspended solids. However no documentation of the results of the sample analysis is in
the November 1996 Monthly Progress and O&M Report (Nov. 1996 Report). Either the
documentation of the sample analysis was inadvertently not included in the Nov. 1996
Report or the sample analysis was not performed. Please provide documentation of the
sample analysis results or note in Table 5 that the samples were "not analyzed" for total
suspended solids. This will avoid unintentionally stating that groundwater samples were
collected and laboratory analysis was unable to detect total suspended solids above the
detection limits.
Table 5 suggests that the monitoring well MW-25 sample collected on February 5, 1997
contained 1200 µg/L of barium. The results of the laboratory analysis indicate the
presence of barium at ,120 µg/L. Please correct this oversight.
Table 5 suggests that the monitoring well MW-16 sample collected on February 5, 1997
contained no detectable concentrations of 1,1,1-trichloroethane. The results of the
laboratory analysis indicate the presence of 1,1,1-trichloroethane at 59 µg/L. Please
correct this oversight.
Comments
Page 5
•
17. Table 5 suggests that the monitoring well MW-16 sample collected on February 5, 1997
contained 1700 µg/L of barium. The results of the laboratory analysis indicate the
presence ofbarium:at 170 µg/L. Please correct this oversight.
18. Table 5 suggests that the monitoring well MW-16 sample collected on February 5, 1997
contained 1100 µg/L of zinc. The results of the laboratory analysis indicate the presence
of zinc at 110 µg/L Please correct this oversight.
19. Table 5 suggests that the monitoring well MW-9 sample collected on February 5, 1997
contained 8100 µg/L of barium. The results of the laboratory analysis indicate the
presence of barium at 810 µg/L. Please correct this oversight.
20. Table 5 suggests that the monitoring well MW-9 sample collected on February 5, 1997
contained 1400 µg/L of suspended solids. The results of the laboratory analysis indicate
the presence of suspended solids at 140 µg/L. Please correct this oversight.
21. Table 5 suggests that the monitoring well MW-19 sample collected on February 5, 1997
contained no detectable concentrations of zinc. The results of the laboratory analysis
indicate the presence of zinc at 24 µg/L. Please correct this oversight.
Table 6 -Summary of Air Sample Analyses
22. The 1,2-dichloroethene concentration data for the following sampling points in the soil
vapor extraction (SVE) system does not correspond with the 1,2-dichloroethene
concentration data as shown in Table 6 in the April 1996 Monthly Progress and O&M
Report. Please clarify this discrepancy.
Sample Date Monthly Progress Report Annual Summary Report
Location 1,2-dichloroethene (mg/m3) 1,2-dichloroethene (mg/m3)
VE-01 Feb.22, 1996
OW-I Feb.22, 1996
OW-2 Feb.22, 1996 380
OW-3 Feb.22, 1996 80
OW-4 Feb.22, 1996 80
OW-5 Feb.22, 1996 380
Comments
Page 6
•
23. The June 5, 1996 air sampling event of the soil vapor extraction (SVE) system collected
four samples identified as VE-I 00 I, VE-I 002, VE-I 003 and VE-I 004. Please clarify the
sampling location of these air samples.
Table 7 -Summary of Mass voe Removal Estimates
24. The Monthly Flow Volumes mentioned in comment# I should be corrected if they are
indeed in error. Additionally, all but three Average Total VOC Concentrations were
unable to be verified. Please verify these values and provide a justification for their
means of calculation. Provide a justification for the value of Average Total VOC
Concentration used for those treatment systems that went unsampled in a given month.
Paying particular attention to significant digits and rounding errors, carefully recalculate
the Pounds ofVOC Removed For Month and the Cumulative voes Removed.
Table 8 -Proposed 1997/1998 Sampling Schedule
25. Correct the spelling of property for the table entry, "Property Line."
26. Revise the second table to include the groundwater sample testing to be conducted on a
monthly basis in addition to the quarterly testing provided.