NC0004626_WASTELOAD ALLOCATION_19830708

NPDES DOCUMENT SCANNIM& COVER SNEET
NPDES Permit: NC0004626
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct (AtQ
Permit Modification
Speculative Limits
Correspondence
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date: July 8, 1983
Th ar document i�a priritetl cum reu*se paper-ignore any
cor�terit oar the re�reree aide

Engineer Date Rec. #
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{{ NPDES WASTE LOAD ALLOCATION G~:t2 -&3 795
w Facility Name: _ . y X'�l>a-Fr --- Date: &~ AZ fR 3_ _
Existing
c� Permit No. Pipe No. County: y+ 6dn
o Proposed Q
Design Capacity (MGD) : .!5 Industrial (% of Flow) : Domestic (% of Flow) : H %n
rl
M�
��, P Receiving Stream: - Ndr d S Cr'f-Fh Class: C' Sub-Basin: — 03 -a7-6'.q
o tt PEE
Reference USGS Quad: (Please attach) Requestor:_ .Qa� _Ad Wlas Regional Office
ac
(Guideline limitations, if applicable, are to be listed on the back of this form.)
Design Temp. : n Drainage Area: `��a *n� Avg. Streamflow:,
7Q10: Winter 7Q10: 1,5 CPS -- 30Q2: �• Q+acs _
Location of D.O.minimum (miles below outfall) : Slope:w _
E Velocity (fps) : Kl (base e, per day, 20oC) : K2 (base e, per day, 200C) :
0
caCo JunO p ocA66r 3/
H Effluent Monthly Da.1I� Effluent Monthly DQ----;I��{{
Characteristics Average MOaA-. Comments Characteristics Average MX. Comments
' Ss IG Ibs
lvoo agoo WOO 1000
Ut: i
Original Allocation
Revised Allocation Date(s) of Revision(s)
(Please attach previous allocation)
Confirmation
r�r Prepared By: z Reviewed By: Date:
IN

REQUEST NO . 795
*####*##############* WASTELOAD ALLOCATION APPROVAL FORM
FACILITY NAME « PPG—LEXINGTON
TYPE OF WASTE INDUST . SDOMEST .
COUNTY DAVIDSON
REGIONAL OFFICE WINSTON—SALEM REQUESTOR RAVE ADKINS
RECEIVING. STREAM NORTH POTTS CR . SUBBASIN YAIt04
'7010 « 0 . 5 CFS W7010 « 1 . 5 CFS 3002 « J . 8 CFS
DRAINAGE AREA « 9 . 6 S7 , MI . STREAM CLASS «C
RECOMMENDED EFFLUENT LIMITS
Jung Nov.
7 7
WASTEFLOW (S) ( MGIl) 0 . 5 0 ..5 MONITORING REQUIREMENTS AS
BOD-5 (MG/L) « 38 75 DISCUSSEDy INCLUDING MONITOR—
NH3—N (MG/1- ) ING FOR TKO! Y TP F D0, SETTLE—
D . O . (MG/L ) ABLE MATTERP TEMP . ? RESIDUAL
PH ( SU ) 6—$ . 5 ti-8 , 5 CL r TOTAL RESIDUE s AND COI+ ,
FECAL COLIFORM ( /100ML ) 14 1000 1000
TSS (ibs/ 1 105 1 A 6
�00`S �L3�Or9f/} �S7
FACILITY IS « PROPOSER ( )) EXISTING ( V) NEW ( )
LIMITS ARE « REVISION ( V ) CONFIRMATION ( ) OF THOSE PREVIOUSLY ISSUED
REVIEWED AND RECOMMENDED BY **
MODELER ; . cia f�6.s.a.q�t "—_'DATE
SUPERVISORYMODELING GROUP _ _ __DATE
REGIONAL SUPERVISOR « _ _ !L_ _ __IRATE « 7_5 --
PERMITS MANAGER RECEIVED ____ - --------DATE
No"h Pledmanl
gealonal Oifiaa
APPROVER BY JUN 241983
WATER QUALITY Dlt
DIVISION DIRECTOR -----------------------DATE « __________

NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES & COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT
WINSTON-SALEM REGIONAL OFFICE
June 6, 1983 Q
M E M O R A N D U M
TO: Dave Adkins
Permits & Engineering Unit
FROM: Russell D. Radford a : r
Regional Supervisor '
SUBJECT: PPG Industries
Davidson County
The letter of April 21, 1983, from Mr. C. M. LeCroy, PPG has been reviewed
by this office. Several discussions between Mr. LeCroy and Mr. Steve Mauney,
Regional Engineer have occurred. A revised limits page is attached and the only
thing which PPG does not agree with is the Fecal Coliform sampling frequency.
The following facts are relevant:
1. This is a Class IV plant accepting domestic waste.
2. In April, 1982, it was reported that 1500 persons were employed
at this plant. Domestic waste could be estimated at 37,500 GPD
(GPCD) , With the plant flow for last 12 reported months at 0.267
MGD this is 1495 of total.
3. The Order and Final Decision (AH WQ 77-17) that the hearing officer
executed on 11/20/78, contained sampling requirements of 3/week
during summer and 1/week during winter for Fecal Coliform at the
effluent and stream locations. Even though this is the correct
frequency for stream sam ling, it is not ppropriate fo the
effluent.
n7
Please proceed w h public notice to issue this permit.
R ECEIVEC�
CS J U N 0 8 1983
CC: Steve Mauney
Attachment q

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DIVISION OF ENVIRONMENTAL MANAGEMENT
October 7, 1982
CT I
M E M 0 R A N D U M
TO: Steve Tedder
FROM: Forrest Westall
SUBJECT: PPG Lexington, Boron
The Air Quality Section has identified to some extent,
boron 'contamination of terrestrial vegetation around this
facility. As a result, we would like to have the Technical
Services Unit examine the available data on Lexington to see -.
if boron has been detected in the water below the discharge
or around the discharge and to what extent any levels of
boron may be considered of environmental concern. Jennifer
Buzun has performed the modeling for the Lexington facility
and is familiar with the data. It may be appropriate for
her to examine this information and determine if boron is in
fact of any significant concern in the water.
Your assistance is appreciated.
FRW/jf
cc: Lee Fleming x
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