NCG030078 DMR SW (13)

Burch Environmental, LLC
5087 Icard Ridge Road
Hickory, NC 28601
Date: November 23', 2018
Attention: DWR Central Files
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
COMMSC(5PE OP
Subject: Stormwater DMRs
COMMSCOPE, INC. WWTP
NCDWQ General Permit No. NCG030000
Certificate of Coverage No. NCG030078
October 2018 Stormwater DMRs
To Whom It May Concern:
I have enclosed two (2) copies of the October 2018 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 the required
seven (7) outfalls for the facility on Friday, October 26' , 2018. These include the
following outfalls: 003, 004, 005, 006, 008, 009, and 012. All seven (7) outfalls were
monitored for oil & grease, TSS, pH, lead, copper, and zinc.
For this samDlina event, the followina exceedances from the Dermit were noted:
Outfall #
TSS 100 m /L
Copper 0.007 m /L
Zinc 0.067 m /L
003
N/A
0.0086
N/A
008
1255.1
0.12
0.65
009
N/A
0.013
N/A
The exceedances noted above are being addressed by CommScope personnel in the
following corrective action steps:
1) Control measures are still being implemented to reduce the metal concentrations
including covering / shielding operations as well as directing run-off away from
any critical outdoor areas.
2) Also, for the zinc (Zn) exceedances, it is noted that there is excessive runoff from
air condition drains from the roof. This has showed positive results in the past
for zinc (as collected from these roof drains and as stated for the December
2017 DMR).

3) Staff has also been completing and working on conducting more sampling (when
allowable) to further document corrective action measures.
4) Staff has also notified Mr. James Moore about past exceedances at the facility via
email on Thursday, November 1°, 2018 providing an excel spreadsheet to
highlight all exceedances up to September 2018 and to better understand the
data for the facility. Furthermore, staff has notified Mr. Moore on Friday,
November 23id, 2018 with updated data to reflect the October 2018 DMR report.
5) Furthermore, based on other past sampling events (as well as performing
monthly dry weather inspections), staff is working diligently by addressing any
issues as well as updating best management practices to address the above
noted benchmark exceedances.
Now, based on previous sampling events (and still working on the above corrective
action steps), I feel that CommScope, Inc. is working on addressing these exceedances
as needed and will continue to follow up with necessary Best Management Practices as
needed.
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. Please note
that a certified copy was also mailed to Raleigh's office.
Sincerely,
Nicole B. Johnston
Environmental Consultant
For CommScope, Inc.
Burch Environmental, LLC
5087 Icard Ridge Road
Hickory, NC 28601
Phone: [phone]
n icole.iohnston @yvsa. org
cc: Laura Moody, Senior Environmental Engineer
CommScope — Claremont and Catawba Facilities
6519 CommScope Road, Catawba, NC 28609
3642 U.S. Hwy. 70 East, Claremont, NC 28610
Office: [phone]
Mobile: [phone]
[e-mail]
www.commscope.com

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 11/23/2018
CERTIFICATE OF COVERAGE NO. NCG030078
FACILITY NAME _CommScope, Inc.
COUNTY Catawba
PERSON COLLECTING SAMPLES N/A_ No discharge_
LABORATORY_Statesville Analytical_ Lab Cart. # _440
Comments on sample collection or analysis: Collected samples to verify
that Stormwater Services was collecting samples appropriately
4
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLECTION YEAR 2018
SAMPLE PERIOD ❑Jan -June ®July -Dec
or ® Monthly2 October (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ®Watersupply ❑SA
❑Other
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3
® No discharge this period?2
24-hour
Non -Polar O&G/
Date Sample
pH,
Total Toxic
outfall No.
rainfall
Total Suspended Solids
Copper
Lead
Zinc
Total Petroleum
Collected-
amount, amount,
Standard units
Hydrocarbons
Organics -
Inches
Benchmarks =__>
_
-
100 mg/L or 50 mg/L'
6.0 — 9.0
0.007 mg/L
0.030 mg/L
0.067 mg/L
15 mg/L
1 mg/L
003
10/26/18
3.00"
<3.125
6.73
0.0086
<0.0025
0.054
6.06
N/A
004
10/26/18
3.00"
13.375
6.86
0.0026
<0.0025
0.033
1 12.0
N/A
005
10/26/18
3.00"
5.5
7.04
0.004
<0.0025
0.067
8.2
N/A
006
10/26/18
3.00"
10.375
7.29
0.004
<0.0025
0.049
7.55
N/A
008
20/26/18
3.00"
1255.1
6.70
0.12
<0.0025
0.65
<S.05
N/A
009
10/26/18
3.00"
21
6.60
0.013
<0.0025
0.042
<5.15
N/A
012
10/26/18
3.00"
5.225
7.12
0.004
<0.0025
0.043
6.10
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.
-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.
4 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).
Permit Date: 11/1/2012-10/31/2018 SWU-245, last revised 10/25/2012
Page 1 of 3

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) �f p
11/23/2018
(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.
Note: If you report a sample value in excess of the benchmark, you must implement Tier 2, Tier 2, or tier 3 responses. See General Permit text.
Permit Date: 11/1/2012-10/31/2018 SWU-245, last revised 10/25/2012
Page 2 of 3

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
Collected'
(mo/dd/yr
24-hour rainfall
amount,
Inches,
Non -polar O&G/TPH by
EPA 1664 SGT-HEM)
Total Suspended Solids
pH
Benchmarks =__>
-
-
15 mg/L
100 mg/L or So mg/L•
6.0 — 9.0 SU
006
10/26/18
3.00"
7.55
10.375
7.29
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 OUTFALLTRIGGER 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 ❑ N/A
REGIONAL OFFICE CONTACT NAME: James Moore—emailed on 11/1/2018 about data through9/18 exceedances; also emailed him on 11/23/2018 with updated spreadsheet
Mail an original and one copv of this DMR, including all "No Discharge" reports, within 30 days of receipt of the lab results for at end of monitoring period
In the case of "No Discharge" reports) to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mall 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."
(Signature of
Permit Date:11/1/2012-10/31/2018
11/23/2018
(Date)
SWU-245, last revised 10/25/2012
Page 3 of 3