NC0004685_Correspondence_20020805

Michael F. Easley, Govemor
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan Klimek, P.E. Director
Division of Water Quality
Mr. J. T. Scruggs, Manufacturing Manager
PPG Industries Fiber Glass Products
940 Washburn Switch Road
Shelby, N.C. 28150
Subject:
Dear Mr. Scruggs:
August 5, 2002
Pilot Study Request
Recycle of WWTP Effluent
PPG Industries Fiber Glass Products- Shelby Plant
NPDES Permit No. NC0004685
Cleveland County
This Office is in receipt of your letter dated August 6, 2002 concerning a request to
conduct a pilot study whereby the effluent from your WWT facility would be recycled back into
your process water treatment system. In your letter you indicated that the reason for this study is
due to the ongoing drought that has affected this part of the State, which has severely affected the
amount of water available to the City of Shelby where your current process water is obtained.
Once completed, the results of the pilot study will help determine whether or not the recycling of
your WWTP effluent would be acceptable in your manufacturing process. You also requested
that the pilot study begin from the date of your letter and continue through December 31, 2002.
Should the resulting data from the pilot study indicate no detrimental effects as a result of the
reuse of this water, a request for an amendment to the company's NPDES Permit will be
forthcoming.
This Office has no objection to PPG conducting a pilot study involving the recycle of
WWTP effluent back into the company's manufacturing process. This approval is effective from
the date of this letter through December 31, 2002. Please note that under no circumstances should
this approval be construed to allow KoSa to exceed any existing NPDES permit limitation or to
by-pass any existing wastewater treatment process.
NOD;ENR
Customer Service
1 800 623-7748
Division of Water Quality 919 North Main Street Mooresville, NC 28115 Phone [phone]
Fax [phone]

Mr. J. T. Scruggs
August 5, 2002
Page Two
If you have any questions regarding this matter, please contact Mr. Michael Parker or me
at 704-663-1699.
Sincerely,
D. Rex Gleason, P.E.
Water Quality Regional Supervisor
cc: Dave Goodrich
/mlp
h\gempilotstd.doc
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