NCG030078 DMR SW (6)

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 11/28/2016
CERTIFICATE OF COVERAGE NO.jN€GO3OOFl SAMPLE COLLECTION YEAR 2016
FACILITY NAME CommScope, Inc. RECEitptilbEPERIOD ❑Jan-June ®July-Dec
COUNTY Catawba DEC 0 or ® Monthly) October 2016 (month)
PERSON COLLECTING SAMPLES Shannon Lowrance&Nicole Johnston_ 5 �J HARGING TO CLASS ❑oRW ❑HQW ❑Trout ❑PNA
LABORATORY_Statesville Analytical_Lab Cert.#_440 CENTRAL F ❑Zero-flow ®Water Supply OSA
Comments on sample collection or analysis:Collected samples to check DSR SEC nosy ❑Other
all outfalls-Highlighted outfalls are only ones required
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
****PLEASE NOTE THAT,THE TWO(2)ZINC EXCEEDANCES ARE FROM OUTFALLS THAT ARE NOT REQUIRED FOR REPRESENTATIVE SAMPLING OUTFALLS. THE OUTFALLS
FOR REPRESENTATIVE SAMPLING INCLUDES 003,004,005,008,009,AND 012(AS HIGHLIGHTED BELOW IN YELLOW). FOR THIS EVENT,COMMSCOPE,INC.IS IN
COMPLIANCE.
Part A: Stormwater Benchmarks and Monitoring Results
❑ No discharge this period?2
Non-Polar O&G/
Date Sample 24-hour rainfall pH, Total Toxic
Outfall No. Collected) amount, Total Suspended Solids Standard units Copper Lead Zinc Total Petroleum Organicss
(mo/dd/yr) Inches3 Hydrocarbons
Benchmarks===> - - SEM or 50 mg/L4 6.0-9.0 0.007 mg/L 0.03 mg/L 0.067 mg/L 15 mg/L. 1 mg/L
001 10/08/16 2.00 <3.125 6.54 <0.002 <0.0025 0.04 <6.17 N/A
002 10/08/16 2.00 <2.857 7.01 <0.002 <0.0025 0.027 6.24 N/A
'_ 10/08/16 2.00 <2.941 7.38 0.0031 0.0035 0.0064 <5.68 N/A
10/08/16 2.00 <4.464 7.32 <0.002 <0.0025 0.028 <7.63 N/A
10/08/16 2.00 <4.167 7.36 <0.002 <0.0025 0.062 <5.26 N/A
006 10/08/16 2.00 <2.778 7.53 <0.002 <0.0025 0.023 <5.05 N/A
007 10/08/16 2.00 3.444 7.02 0.0021 <0.0025 RE <5.29 N/A
0
10/08/16 2.00 5.828 6.70 0.0027 <0.0025 0.04 <5.43 N/A
10/08/16 2.00 <2.941 6.65 0.0026 <0.0025 0.034 <5.59 N/A
010 10/08/16 2.00 20.625 7.02 <0.002 <0.0025 0.037 <6.33 N/A
011 10/08/16 2.00 6.966 6.72 <0.002 <0.0025 0.05 <5.41 N/A
10/08/16 2.00 14.061 7.04 <0.002 <0.0025 0.063 <6.37 N/A
013 10/08/16 2.00 5.257 6.89 <0.002 <0.0025 0.05 <5.21 N/A
014 10/08/16 2.00 8.556 6.67 <0.002 <0.0025 0.06 <5.68 N/A
015 10/08/16 2.00 2.941 6.31 <0.002 <0.0025 1111 <5.49 N/A
' Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
2 For sampling periods with no discharge at any single outfall,you must still submit this discharge monitoring report with a checkmark here.
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 1 of 3

'The total precipitation must be recorded using data from an on-site rain gauge. Unattended sites may be eligible for a waiver of the rain gauge requirement.
'See General Permit,Table 3 identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
s Total Toxic Organics sampling is applicable only for those facilities which perform metal finishing operations, manufacture semiconductors, manufacture
electronic crystals, or manufacture cathode ray tubes. For purposes of this permit the definition of Total Toxic Organics is that definition contained in the EPA
Effluent Guidelines for the facility subject to the requirement to sample (for metal finishing use the definition as found in 40 CFR 433.11; for semiconductor
manufacture use the definition as found in 40 CFR 469.12; for electronic crystal manufacture use the definition as found in 40 CFR 469.22; and for cathode ray
tube manufacture use the definition found in 40 CFR 469.31).
**** Please note that Wes Bell with the Mooresville Regional Office had provided that we needed to collect some roof samples from the facility to possibly
define that previous zinc results were related to the roof and/or air condition condensate. If you see below,there are two (2)exceedances from the roof
samples for zinc.
Outfall No. Date Sample 24-hour rainfall Copper -
Lead Zinc
Collected amount,
(mo/dd/yr) Inches'
Benchmarks===> - - 0.007 mg/L 0.03 mg/L 0.067 mg/L
MBG35 10/08/16 2.00 <0.002 <0.0025
MBG38 10/08/16 2.00 <0.002 <0.0025 0.04
MBG28 10/08/16 2.00 <0.002 <0.0025 Kg
P3-Door 55 10/08/16 2.00 <0.002 <0.0025 0.057
Facilities that incorporate a solvent management plan into the Stormwater Pollution Prevention Plan may so certify, and the requirement for TTO monitoring
may be waived. The solvent management plan shall include a list of the total toxic organic compounds used and the other elements listed in the General
Permit. For those facilities electing to employ the TTO monitoring waiver, the discharger shall sign the following certification statement:
"Based upon my inquiry of the person or persons directly responsible for managing compliance with the permit monitoring requirement for total toxic organics
(TTO), I certify that to the best of my knowledge and belief, no dumping of concentrated toxic organics into the stormwater or areas which are exposed to rainfall or
stormwater runoff has occurred since filing the last discharge monitoring report. I further certify that this facility is implementing the all the provisions of the
solvent management plan included in the Stormwater Pollution Prevention Plan."
Nicole Johnston
Name(Print name)
WWTP/Stormwater Consultant
Title(Print title)
l//7-/y6iL,
(Signature) (Date)
Note: Results must be reported in numerical format. Do not report Below Detection Limit, BDL,<PQL, Non-detect, ND, or other similar non-numerical
format. When results are below the applicable limits,they must be reported in the format, "<XX mg/L",where XX is the numerical value of the detection
limit, reporting limit, etc. in mg/L.
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 2 of 3

Note: If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text.
Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new oil per month.
No discharge this period?'
Outfall No. Date Sample 24-hour rainfall
Collected'. amount, Non-polar O&G/TPH by
(mo/dd/yr) Inches' EPA 1664(SGT-HEM) Total Suspended Solids pH
Benchmarks===> - - 15 mg/L 100 mg/L or 50 mg/L* 6.0—9.0 SU
10/08/16 2.00 <5.05 <2.778 7.53
Footnotes from Part A also apply to this Part B
*See General Permit text,Table 5, identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
Note: If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text.
FOR PART A AND PART B MONITORING RESULTS:
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS. SEE PERMIT PART II SECTION B
• TIER 3: HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANY ONE OUTFALL? YES ❑ NO
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ® NO❑
REGIONAL OFFICE CONTACT NAME. Wes Bell—Mooresville Regional Office
Mail an original and one copy of this DMR, including all"No Discharge"reports, within 30 days of receipt of the lab results(or at end of monitoring period
in the case of"No Discharge"reports)to:
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"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 inquiry 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."
42_8/2-0
(Signature of Permittee (Date)
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

COMMSC(5PE
Burch Environmental, LLC
5087 Icard Ridge Road
Hickory, NC 28601 RE_etl
Date: November 28th, 2016 )EC p 5 2.°
Attention: DWR Central Files Cif RT. FILES FTLOS
Division of Water Resources
OWE S�
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Stormwater DMRs
COMMSCOPE, INC. WWTP
NCDWQ General Permit No. NCG030000
Certificate of Coverage No. N GO'30n07
October 2016 Stormwater DMRs
To Whom It May Concern:
I have enclosed two (2) copies of the October 2016 Stormwater DMR for CommScope,
Inc. WWTP. The CommScope Certificate of Coverage No. is NCG030078.
For this month, CommScope, Inc. completed a wet sampling event of all fifteen (15)
outfalls for the facility on Saturday, October 8th, 2016. All fifteen (15) outfalls were
monitored for oil & grease, TSS, pH, lead, copper, and zinc. Furthermore, additional
sampling were grabbed from several roof drain sites at the facility for copper, lead, and
zinc (as suggested by Mr. Wes Bell with the Mooresville Regional office due to past
exceedances for zinc). Anyway, there was only two (2) exceedances for the zinc
benchmark value of 0.067mg/L during this sam sling event. Please note that the
outfalls were Outfall #007 and Outfall #015. ;��. ;x ti,; .� 4, �.. e� ,. r1-[: )
°,�a ) y Yr 7 `1 v d ,.k.F h x. air t ) i
•�uxgh .a„, ,. _ �d�x�� d !° '�,h hu e����� a�7 DH i �,°� n JIB ! ...,ze LL`i 8 ➢.i.l Q,.��q �,� �h� �M�r� ,ky�.'�I .,I xr..��'q
/if.; {6);��Jt?I r� 1�� .n3 t7,E 1 ��[lt "I 1(,,,r3..y C,vou c,;;'A, c`>zfr G0 L Ikcaa; Oilhk fl Owc gr@'
+?1. 4 ^OiO',_; � 'i� ./+S�i 3 ^7 31:)„ 7.r',id`'ods.
However, for the roof drain samples, there were two (2) exceedances for zinc as well.
Now, based on the most recent results, I feel that CommScope, Inc. is meeting all
standards as needed and following up with Best Management Practices as needed (such
as sampling the roof drains). Furthermore, the sampling results from the roof drain
have identified a potential issue that could cause a zinc exceedance for the facility, thus

explaining the exceedance for Outfall #007. Also, please note that Outfall #015 is right
next to a railroad track; this is also another potential issue for zinc contamination for
this specific outfall. From this time forward, CommScope, Inc. is also going to start
completing the sampling events for the original six (6) outfalls identified above instead
of for all fifteen (15) outfalls (as has been completed for the last few representative
sampling occurrences).
Please feel free to call me at 336-366-0870 to discuss this further.
Please let me know if you have any questions or concerns with this report.
Sincerely,
-1/Lc.;,,e4d- ' --d-14-.--/-1--
Nicole B. Johnston
Environmental Consultant
For CommScope, Inc,
Burch Environmental, LLC
5087 Icard Ridge Road
Hickory, NC 28601
Phone: [phone]
nicole.johnstonPyvsa.org