NC0021661_Technical Assistance_20070111

January 11, 2007
David Robinson
Pilkington North America Inc
Hwy. 74 E
Laurinburg NC 28352
Michael F. Easley, Governor
William G. Ross Jr., Secretary"
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
SUBJECT: November 14, 2006 Technical Assistance Inspection
Pilkington North America Inc
Plant 75
Permit No:: NC0049514
Scotland County
Dear : Mr. Robinson
Enclosed please find a copy of the Technical Assistance Inspection form from the inspection conducted on
November 14, 2006. The Technical Assistance Inspection was conducted by Mark Brantley, Environmental
Chemist, of the Fayetteville Regional Office. The cooperation of Shaunna Johnson,.Environmental.Cotnpliance
Manager, was greatly appreciated. The facility was found to.be in Compliance witli permit NC0049514. As a
reminder, preservation of the Waters of the State can only be achieved through consistentNPDES Permit
compliance.
Please refer to the enclosed inspection report for additional observations and comments. If you or. your staff have
any questions, please call me at 910-433-3300.
Sincerely,
Mark Brantley
Environmental Chemist
Fayetteville Regional Office
cc: Shaunna Michele Johnson
Central Files
Fayetteville Files
North Carolina Division of Water Quality/Aquifer Protection Section 225 Green St./ Suite 714 Fayetteville, NC 28301 Phone [phone]
Customer Service 1-877-623-6748
FAX [phone] Internet: h2o.enr.state.nc.us
One
NorthCarolina
Naturally
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

' United States Environmental Protection Agency
EPA Washington,'D.C. 20460'
Water Compliance Inspection Report
Form Approved..
OMB No. 2040-0057
. Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection
1 INI 2 ISI 31 NC0049514. 111 121 06/11/14 117
Type Inspector Fac Type
18-I
Io 19�120II
i
Remarks
211IIIIIIIIIIII-III.I.IIIIIIIIIIII'IIIII:II.-IIIIIIIIII-166
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved
671 169 70 13 I 711 I 72 I NI 731 I 174 751 1 I 1 1 1 I - 180
Section B: Facility -Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number) •
Pant. 75:.
Lye Hwy '74" E ;
Laurinburg NC 28352
Entry Time/Date
01:30 PM 06/11/14
Permit Effective Date
06/01/01
Exit Time/Date
02:15 PM 06/11/14
Permit Expiration Date
09/08/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
/// -
Shaunna Michele Johnson/ORC/910-291-2737/
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
David. Robinson,Hwy 74 E Laurinburg NC 28352//910-291-2635/ No
- Section C: Areas Evaluated. During Inspection (Check only those areas evaluated)
Other
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Mark Brantley FRO WQ//910-433-3300 Ext.727/
V te4, /- if - 07
Signature of Managem-nt Q A Reviewer Agency/Office/Phone and Fax Numbers Dale
l;i. /V /U
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

NPDES yr/mo/day Inspection Type
31 _ Ill 1217 18
1
NC0049514 06/11/14 11 DI
(cont.) 1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
A technical assistance visit was performed at the request of the facility to help determine why, chlorine was
being detected at levels greater than the NPDES discharge permit allowed in the effluent disaharge. .After
talking with Shauna Johnson (Environmental Manager for Pilkington);: Ricky Odum (ORC for the domestic
wastewater plant at Pilkington), and Hach,technical essistapcegroup it was thought that oxidized
Manganese or Chromium could be causing interference iri the Uttre Low Level Chlorine Test. The Hach
technical support group recommended treating the sample with reagents -from the troubleshooting guide to
eliminate the inference. Since this has been incorporated in the testing procedures the results from the
Ultra Low Level Chlorine Test have been below permitted limits.
It was then concluded that oxidized Manganese or Chromium was causing interference in the testing
procedure.
Page # 2