NCG030474_DMR_20191105

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LYNDON STEEL COMPANY
1947 Union Cross Road `4,0 STEf[COy
Winston-Salem,NC 27107 f
www.hndonsteel.com
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PHONE:[phone] FAX:[phone] *Fouxoeo 1o‘;
www.lyndonsteel.com
November 5, 2019 RFCE \/T0
NOV 12 2019
DENR-LAND QUALITY
DEHNR STORMWATER PERMITTING
Division of Environmental Management
P.O. Box 29535
Raleigh, NC 27626-0535
Re: Lyndon Steel Stormwater permit#NCG030474
To Whom It May Concern:
Enclosed please find the Stormwater Sampling Report for the 2019 year- recorded on 10-16-2019.
We have some results above our thresholds now with exception of a few and I think this is mostly
from leaves and other source debris and mostly due to the fact this is the first significant rainfall we
have had in many months. We will clean these out and still have the following initiated until we see
solid and consistent results.
1) We are having the parking lots swept and cleaned by a 3rd party with heavy equipment.
2) We had a 3rd party inspection which all areas of concern have been addressed and completed.
If you have questions or concerns, please contact me at 336.293.0316 or email at
[e-mail]
Sincerely,
< 01\
\‘,/
Daniel Maiden
Environmental, Health and Safety Manager
Enclosure: Stormwater Sampling Report 5-23-2019 (1 original and 1 copy)

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November 4,2019
Lyndon Steel
1947 Union Cross Road
Winston-Salem,NC 27107
Attention:Daniel Maiden
Chemical Analysis for Stormwater Sampling identified as Lyndon Steel(Outfall 001&002),collected 16 October 2019
I. Project Number:N/A NPDEStl:NCG030474
Sample RA L Sampling Sampling Total Total Total Total Date
Identification Sample Date Time Suspended Hydrocarbon Lead (upper Zinc Analyzed
Number Solids Oil&Grease
(mg/L) (mg/L) (mg/L) (mg/l.) (mg/L)
Outfall 001 73626-01 10/16/19 1107 32.0 <5 <0.005 0.071 0.202 10/16-1(1/24/19
Outran 002 73626-02 10/16/19 1113 36.0 <5 <0.005 9.013 0.36(1 10/16-10/24/19
Analyst:GP,JP,FF B AW
mg/L = milligrams per Liter=parts per million WPM) <=less than or Below Quantitation Limit(BQL)

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L.AbORATORIES, INC. Ncir�a VV77
Analytical/Process Consultations •�� .,.;0 P;/ ��;
November 4,2019
Lyndon Steel
1947 Union Cross Road
Winston-Salem, NC 27107
Attention: Daniel Maiden
Chemical Analysis for Stormwater Sampling identified as Outfall 00l& 0012 at Lyndon Steel- Winston-Salem, NC
I. Project Number: N/A NPDES#NCC030474
Quantitatiun Outfall Outfall Cut-off Concentration
Limit 001 002 (101
l'arameter (m2/1.) (me/LL (me/Li (tn&l.)
Total Suspended Solids(MS) 5.0 32.0 36.0 10(1
Ilydrocarbon Oil&Grease 5.0 <5 <5 3O
Lead 0.005 <1.005 _ <0.005 0.033
Copper 0.005 0.071 0.013
Zinc 0.015 0.202 0.360
pll 0.1 Std. (/nits 6.79 6.83 6.0-9.0
Sample Number 73626-01 73626-02
Sample Date 10/16/19 10/16/19
Sample Time 1 107 1113
Rainfall 1.6 inches
Event Duration 9 hrs
Results of Visual Monitoring of Stormwater Outfalls Identified as Outfall 1101 and Outfall 002
at Lyndon Steel- Winston-Salem, NC
II. Project Number: N/A NPDES#NC
Stormwater Monitoring Monitoring
Discharge Monitoring Location Location
Charteristics Frequency Type Outfall 1011 Outfall 002
Color Semi-Annual Visual Light Brown Light Brown
Odor _ Semi-Annual Visual None Must`
Clarity Semi-Annual Visual Clear light
Floating Solids Semi-Annual Visual light Light
Suspended Solids Semi-Annual Visual Light light
Foam Semi-Annual Visual None None
Oil Sheen Semi-Annual Visual None None
Other obvious
on indicators of None None
stormwater pollution
mg/L - milligrams per Liter-parts per million(ppm)
BQL-Below Quantization I.imits
<--less than or Below Quantitatiun Limit(IIQI_)

STORMWATER DISCHARGE OUTFALL(SDO)
MONITORING REPORT
GENERAL PERMIT NO.NCG030000 SAMPLES COLLECTED DURING CALENDAR YEAR: 2019
CERTIFICATE OF COVERAGE NO.NCG 030474 (all samples collected during a calendar year,shall be reported no later
than January 31 of the following year)
FACILITY N,Lyndon Steel COUNTY Forsyth
PERSON COLLECTING SAMPLE(S Glenn Price PHONE NO.
CERTIFIED LABORATORY(S) R&A Laboratories,Inc. Lab# 34
Lab# (SIGNATURE OF PERMITTEE OR DESIGNEE)
By this signature,I certify that this report is accurate and
complete to the best of my knowledge.
Part A:Specific Monitoring Requirements for stormwater discharges from secondary containment structures associated with Petroleum Bulk Stations and Terminals and stormwater
discharges from Oil Water Separators
50050 00556 00545 01051 46000 00400
Date Total
Outfall Sample Total Oil and Suspended
No. Collected Flow Grease Solids Lead,Total Copper,Total Zinc,Total Phenols 1 pi' Pan A don not apply This Natty does not discharge
mo/dd/yr MG mg/I mg/I mg/I mg/I mg/I mg/I Std.unit nn,nwa:a.r ..^4.r....,nw,. .X.,..f
001 10/16/19 0.200 <5 32.0 <0.005 0.071 0.202 6.79 oemte,.eparators
002 10/16/19 0.200 <5 36.0 <0.005 0.013 0.360 6.83
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? yes _no
(if yes,complete Part B)
Part B:Vehicle Maintenance Activity Monitoring Requirements
Outfall Date 50050 00556 01051 _ 38260 00545 00400
No. Sample Total Oil and Lead,Total Detergents Total pH New Motor
Collected Flow Grease Recoverable' (MBAS)2 Suspended Oil Usage
Copper,Total Zinc,Total Solids
mo/ddlyr MG mg/I ug/I mg/I mg/1 mg/I mg/1 unit gal/mo
STORM EVENT CHARACTERISTICS:
Date 10/16/2019
Total Event Precipitation(inches): 1.6 Mail Original and one copy to:
Event Duration(hours): 9 Attn: Central Files
DEHNR
(if more than one storm event was sampled) Division of Environmental Mgt.
Date 1612 Mail Service Center
Total Event Precipitation(inches): N/A Raleigh,NC 27626
Event Duration(hours): N/A
Form MR-18
Page I of 2

Footnotes:
"I certify, under penalty of law,that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquirey of the person
or persons who manage the system,or those persons directly responsible for gathering the information,the information submitted is,to the best
of my knowledge and belief,true,accurate,and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
joie)
(Signature of Permittee) (Date)
Form MR-18
Page 2 of 2

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Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit http://portal.ncdenr.org/web/wq/ws/su/npdessw#tab-4
Permit No.: N/C or Certificate of Covers€N/C/G
Facility Name: Lyndon Steel
County: Forsyth Phone No.
Inspector: Glenn Price(RAL)
Date of Inspection: 10/16/19
Time of Inspection: 1107
Total Event Precipitation(inches): 1.6
Was t is a"Representative Storm Event"as defined by the permit?
(S nformation below.)
Yes ❑No
Please verb whether Qualitative Monitoring must be performed during a"representative storm event or"measureable storm
event"(requirements vary, depending on the permit.)
Qualitative monitoring requirements vary. Most permits require qualitative monitoring to be performed during a
"representative storm event"or during a"measurable storm event." However,some permits do not have this requirement.
Please refer to these definitions,if applicable.
A"representative storm event" is a storm event that measures greater than 0.1 inches of rainfall and that is preceded by at least 72
hours(3 days)in which no storm event measuring greater than 0.1 inches has occurred. A single storm event may contain up to
10 consecutive hours of no precipitation.
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site outfall. The previous
measurable storm event must h
able to document that a shorter
approval from the local DWQ Regional Office.
By this signature,I certify that this rep accu*at d compute st of my knowledge:
(Signature of Permitee or Designee)
swu-242.020705

1. Outfall Description
Outfall No. 001 Structure(pipe,ditch,etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2.Color: Describe the color of the discharge using basic colors(red,brown,blue,etc.)and tint
(light,medium,dark)as descriptors: Light Brown
3. Odor: Describe any distinct colors that the discharge may have(i.e.,smells strongly of oil,weak chlorine odor,etc.)
None
4: Clarity: Chose the number which best describes the clarity of the discharge,where 1 is clear and 5 is very cloudy:
1 2 3 4 5
5.Floating Solids:Choose the number which hest describes the amount of foating solids in the stormwater discharge,where
I is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6.Suspended Solids:Choose the number which best describes the amount of suspended solids in the stormwater
discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8.Is there an oil sheen in the stormwater discharge? Yes No
9.Is there any evidence of errosion or deposition at the outfall? Yes No
10.Other Obvious Indicators of Stormwater Pollution:
List and describe None
Note: Low clarity,high solids,and/or the presence of foam,oil sheen,or errosion/deposition may be indicative of pollutant exposure.
These conditions warrant further investigation.

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O ,.
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit http://portal.ncdenr.org/web/wq/ws/su/npdessw#tab-4
Permit No.: N/C or Certificate of CoverafN/C/G
Facility Name: Lyndon Steel
County: Forsyth Phone No.
Inspector: Glenn Price(RAL)
Date of Inspection: 10/16/19
Time of Inspection: 1113
Total Event Precipitation(inches): 1.6
Was this a "Representative Storm Event"as defined by the permit?
(See nformation below.)
Yes ❑No
Please verify whether Qualitative Monitoring must be performed during a"representative storm event or"measureable storm
event"(requirements vary,depending on the permit.)
Qualitative monitoring requirements vary. Most permits require qualitative monitoring to be performed during a
"representative storm event"or during a"measurable storm event." However,some permits do not have this requirement.
Please refer to these definitions,if applicable.
A"representative storm event"is a storm event that measures greater than 0.1 inches of rainfall and that is preceded by at least 72
hours(3 days)in which no storm event measuring greater than 0.1 inches has occurred. A single storm event may contain up to
10 consecutive hours of no precipitation.
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site outfall. The previous
measurable storm event must h
able to document that a shorter
approval from the local DWQ Regional Office.
By this signature,I certify that this report is accurate and—complete to e befit of my bwledge:- J
(Signature of Permitee or Designee)
SWU-242-020705

1.Outfall Description
Outfall No. 002 Structure(pipe,ditch,etc.) Storm Drain
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color:Describe the color of the discharge using basic colors(red,brown,blue,etc.)and tint
(light,medium,dark)as descriptors: Light Brown
3. Odor: Describe any distinct colors that the discharge may have(i.e.,smells strongly of oil,weak chlorine odor,etc.)
Musty
4: Clarity: Chose the number which best describes the clarity of the discharge,where 1 is clear and 5 is very cloudy:
1 2 3 4 5
5.Floating Solids:Choose the number which best describes the amount of foating solids in the stormwater discharge,where
1 is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6.Suspended Solids:Choose the number which best describes the amount of suspended solids in the stormwater
discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there any evidence of errosion or deposition at the outfall? Yes No
10.Other Obvious Indicators of Stormwater Pollution:
List and describe None
Note:Low clarity,high solids,and/or the presence of foam,oil sheen,or errosion/deposition may be indicative of pollutant exposure.
These conditions warrant further investigation.

V. Research & Analytical
...- Laboratories, Inc. CHAIN OF CUSTODY RECORD
c`y'jt''�''1 Analytical /Process Consultations
Phonc(336)996-28JI
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