NCG030627 DMR SW (5)

ERICDC
ERICO International Corporation Phone: [phone]
188 Carolina Road Fax: [phone]
Aberdeen, NC 28315 www.erico corn
U.S.A.
May 20, 2016
VIA OVERNIGHT MAIL
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center RECEIVED
Raleigh, North Carolina 27699-1617
MAY 242016
RE: ERICO International Corporation CENTRAL FILES CEN
188 Carolina Rd., Aberdeen,NC 28315 EN SECTION
Stormwater Discharge Monitoring Reports
Certificate of Coverage No. GGO3Gr2
To Whom It May Concern:
ERICO International Corporation ("ERICO") recently conducted a corporate compliance
review of the above-referenced facility and discovered that although the facility has conducted all
of the required monthly stormwater sampling over the last year, the facility inadvertently failed to
submit the required DMR to the DWQ as required under Section E:Reporting Requirements of
the General permit. We apologize for this oversight. To correct the error, please find enclosed
two signed copies of the Discharge Monitoring Reports ("DMRs") for Ju u�h, exrre+6
IA 5 and for January through April 2016, for the above-referenced facility.
In addition, we note that there are exceedences of the benchmark values contained in the
permit. We are in the process of investigating the root cause(s) and expect to be installing
additional best management practices and updating our stormwater pollution prevention plan in
the near future to address these issues.
If you have any questions, please don't hesitate to call me at(910)-944-3355.
Sincerer,
wAlr
Ga - - gee
Plant Manager
Enclosures
cc: Chris Herron, ERICO
Allison Montgomery; Pentair
Adam Sowatzka, King& Spalding
CADDY® • ERICO® • ERIFLEX® • ERITECH® • LENTON®

t a
Semi-annual Stormwater Discharge Monitoring Report
' for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 5-17-16
CERTIFICATE OF COVERAGEWIN NLCD36w2 SAMPLE COLLECTION YEAR_2015
FACILITY NAME ERICO International Corporation SAMPLE PERIOD ❑Jan-June ❑July-Dec
COUNTY Moore or ® Monthly' June (montMj
PERSON COLLECTING SAMPLES DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Lab Cert.# RECEIVED EZero-flow ❑Water Supply OSA
_ Comments on sample collection or analysis:
❑Other
MAY 2 4 2016.
,LEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 -3
CENTRAL FILES
Part A: Stormwater Benchmarks and Monitoring Results SWR SECTION
® 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 Organics
(mo/dd/yr) Inches3 Hydrocarbons
Benchmarks===> - - 100 mg/L 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
Outfall#1
Outfall#2
1 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.
3The 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.
5 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: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 1of3

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."
a,, fie tert7Y1
Name(Print name)
creAC
Titlee((Pri t title)
5 -2 Z
(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 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.
n No discharge this period?2
Date Sample 24-hour rainfall
Outfall No. Collected) amount, Non-polar O&G/TPH by
(mo/dd/yr) Inches3 EPA 1664(SGT-HEM) Total Suspended Solids pH
Benchmarks===> - - - 15 mg/L 100 mg/L or 50 mg/L* 6.0—9.0 SU
•
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.
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.
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: Mr. Mike Lawyer
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."
f—b144)1''.1' o -a
(Signature of Permittee) (Date)
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

*Pr
Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 5-17-16
CERTIFICATE OF COVERAGE NQIEE9112§24, SAMPLE COLLECTION YEAR_2015
FACILITY NAME ERICO International Corporation SAMPLE PERIOD ❑Jan-June ❑July-Dec
COUNTY Moore or ® Monthly1 July (month)
PERSON COLLECTING SAMPLES DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Lab Cert.# ❑Zero-flow ❑Water Supply EISA
Comments on sample collection or analysis:
RECEIVED ['Other
MAY 2 4 2016 PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 -4
Part A: Stormwater Benchmarks and Monitoring Results CENTRAL FILES
DWR SECTION M No discharge this period?2
Date Sample 24-hour rainfall pH, Non-Polar O&G/ Total Toxic
Outfall No. Collected' amount, Total Suspended Solids Standard units Copper Lead Zinc Total Petroleum Organics5
(mo/dd/yr) Inches3 Hydrocarbons
Benchmarks===> - - 100 mg/L 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
Outfall#1
Outfall#2
1 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.
5 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:11/1/2012-10/31/2017 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."
L/{'1 ✓ S �E�v�l��l
Name(Print name)/
Title(Print title)
(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 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?2
Date Sample 24-hour rainfall
Outfall No. 1
Collected amount, Non-polar O&G/TPH by
(mo/dd/yr) Inches3 EPA 1664(SGT-HEM) Total Suspended Solids pH
Benchmarks===> - - 15 mg/L 100 mg/L or 50 mg/L* 6.0—9.0 SU
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.
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 2 of 3

Pill!: '
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: Mr. Mike Lawyer
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."
� ,., 495 Z2-/ 40,
(Signatur of Permittee) (Date)
Permit Date• 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 5-17-16
CERTIFICATE OF COVERAGE NO. N � O624SAMPLE COLLECTION YEAR_2015
FACILITY NAME ERICO International Corporation SAMPLE PERIOD D Jan-June ❑July-Dec
COUNTY Moore or ® Monthly' 'August (month)
PERSON COLLECTING SAMPLES_Frank Bryant DISCHARGING TO CLASS ❑ORW DHOW ❑Trout ❑PNA
LABORATORY Microbac Lab Cert.# NCDNR#11 ❑Zero-flow ❑Water Supply ESA
Comments on sample collection or analysis:_Outfall#1 &Outfall#2 ❑Other
samples were taken after a dolomite lime check dam was installed
prior to each outfall_ PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
- RECEIVED
Part A: Stormwater Benchmarks and Monitoring Results
MAY 2 4 2016 ❑ No discharge this period?2
CENTRAL FILES Non-Polar O&G/
Date Sample 24-hour rainfall DWR Total Toxic
Outfall No. , Total Suspended Solids ACTION Copper Lead Zinc Total Petroleum 5
Collected' amount, Standard units Organics
(mo/dd/yr) Inches3 Hydrocarbons
Benchmarks===> _ - 100 mg/L 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
Outfall#1 8-6-15 0.25 1.60 6.3 0.369 <0.003 0.134 <5.00 N/A 4
Outfall#2 8-11-15 0.10 , 52.0 6.0 0.209 <0.003 0.0910 <5.00 N/A
1 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.
3The 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.
5 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: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 1 of 3

Facilitis 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."
arCS k
Name(Print name)
S d- 0,, Lty r rAcz_c��e yr
Title( iint titl / U
14- j? -"A. ®s'-z z -- 6
(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 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.
n No discharge this period?2
Date Sample 24-hour rainfall
Outfall No. Collected) amount, Non-polar O&G/TPH by
(mo/dd/yr) Inches3 EPA 1664(SGT-HEM) Total Suspended Solids pH
Benchmarks===> - - 15 mg/L 100 mg/L or 50 mg/L* 6.0—9.0 SU
•
•
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.
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.
FOR PARTA 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: Mr. Mike Lawyer
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 signific nt penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
de/ii..0,-),N os-_2,-2_-/6
(Signature of Permittee) (Date)
Permit Date:11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 5-17-16
CERTIFICATE OF COVERAGE NO. N7��[me SAMPLE COLLECTION YEAR_2015
FACILITY NAME ERICO International Corporation SAMPLE PERIOD ❑Jan-June ❑July-Dec
COUNTY Moore or ® Monthly' September (month)
PERSON COLLECTING SAMPLES_Frank Bryant DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Microbac Lab Cert.#_NCDNR#11 ❑Zero-flow ❑Water Supply ESA
Comments on sample collection or analysis:_Outfall#1&Outfall#2 ❑Other
samples were taken after a dolomite lime check dam was installed
prior to each outfall_ R CEIVEU LEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 -�
Part A: Stormwater Benchmarks and Monitoring Results MAY 2 4 Gino
CENTRAL FILES ❑ No discharge this period?2
DWR SECTION 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 Organics5
(mo/dd/yr) Inches3 Hydrocarbons
Benchmarks===> - - 100 mg/L 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
Outfall#1 9-24-15 0.40 31.0 7.5 0.174 0.005 0.126 6.26 N/A
Outfall#2 9-24-15 0.40 17.0 6.3 1.59 0.006 0.238 <5.00 N/A
1 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.
3The 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.
5 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: 11/1/2012-10/31/2017 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."
l
�/5 trca PI
Name(Print name) n
Title(P int title) / o
- / 7/711 .14,1/7-'k
(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 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?2
Date Sample 24-hour rainfall
Outfall No. Collected) amount, Non-polar O&G/TPH by
(mo/dd/yr) Inches3 EPA 1664(SGT-HEM) Total Suspended Solids pH
Benchmarks===> _ - 15 mg/L 100 mg/L or 50 mg/L* 6.0—9.0 SU
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.
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.
FOR PART AAND 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: Mr. Mike Lawyer
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."
,/,.1A,L#9--1• 1 05--22-14)
(Signature of Permittee) (Date)
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 5-17-16
CERTIFICATE OF COVERAGE NO. NCG030627 SAMPLE COLLECTION YEAR ise2 1
FACILITY NAME ERICO International Corporation SAMPLE PERIOD ❑Jan-June ❑July-Dec(
COUNTY Moore or ® Monthly) Oci b (month)
PERSON COLLECTING SAMPLES_Frank Bryant DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Microbac Lab Cert.#_NCDNR#11 �` ED ❑❑Zero-flow ❑Water Supply OSA
Comments on sample collection or analysis:_Outfall#1&Outfall#2 REQ v 4 Other
samples were taken after a dolomite lime check dam was installedx®06
prior to each outfall_ NI- PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 -
LES
GENT�t✓TtON
Part A: Stormwater Benchmarks and Monitoring Results pWR
El 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 Organics
(mo/dd/yr) Inches3 Hydrocarbons
Benchmarks===> - - 100 mg/L or 50 mg/L° 6.0—9.0 0.007 mg/L 0.03 mg/L 0.067 mg/L 15 mg/L 1 mg/L
Outfall#1 10-10-15 0.30 • <1.0 7.5 0.053 <0.003 0.059 <5.00 N/A
Outfall#2 10-10-15 0.30 2.40 7.4 0.266 <0.003 0.072 <5.00 N/A
1 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.
3The 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.
5 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: 11/1/2012-10/31/2017 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."
��i'. S ✓/? -t'
Name
/(Print name)/ 1.4-y Ak
• Title(Pri title)
‘7,222/31-• /Co
(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 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.
n No discharge this period?2
Date Sample 24-hour rainfall
Outfall No.
Collected' amount, Non-polar O&G/TPH by
(mo/dd/yr) Inches3 EPA 1664(SGT-HEM) Total Suspended Solids pH
Benchmarks===> - - 15 mg/L 100 mg/L or 50 mg/L* 6.0—9.0 SU
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.
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 2 of 3

Nate: 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: Mr. Mike Lawyer
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."
d4%l�i. c0,--,. cs---Z2-/t,
(Signature of Permittee) (Date)
Permit Date:11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 5-17-16
CERTIFICATE OF COVERAGE NO. NCGD U6 SAMPLE COLLECTION YEAR_2015
FACILITY NAME ERICO International Corporation SAMPLE PERIOD ❑Jan-June ❑July-Dec
COUNTY Moore or ® Monthly1 November (month)
_ PERSON COLLECTING SAMPLES DISCHARGING TO CLASS ❑ORW ❑HQW Trout ❑PNA
LABORATORY Lab Cert.# ❑Zero-flow ❑Water Supply EISA
Comments on sample collection or analysis: ❑Other
RECEIVE° PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 -*
MP's % 4 7,uis
Part A: Stormwater Benchmarks and Monitoring Results `���s
DNR R�Tlos ® No discharge this period?2
Non-Polar O&G/
Date Sample 24-hour rainfall pH, Total Toxic
Outfall No. _ 1 Total Suspended Solids Copper Lead Zinc Total Petroleum s
Collected amount, Standard units ' -Organics
(mo/dd/yr) Inches
Hydrocarbons
Benchmarks===> - - 100 mg/L 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
Outfall#1
Outfall#2
1 Monthly sampling(instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
z For sampling periods with no discharge at any single outfall,you must still submit this discharge monitoring report with a checkmark here.
3The 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: 11/1/2012-10/31/2017 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."
,‘„„,„
/7 l
Name(Printname) M
Title(Print title)
4 5 2-7— /6
(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 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?2
Date Sample 24-hour rainfall
Outfall No. collected) amount, Non-polar O&G/TPH by
(mo/dd/yr) Inches3 EPA 1664(SGT-HEM) Total Suspended Solids pH
Benchmarks===> - - 15 mg/L 100 mg/L or 50 mg/L* 6.0—9.0 SU
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.
Permit Date:11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 2 of 3

'cute: 1f 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: Mr. Mike Lawyer
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
si nificant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
®S — 7 l tv
(Signature of Permittee) (Date)
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

_ a
Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 5-17-16
CERTIFICATE OF COVERAGE NO. N:CGO OG2 SAMPLE COLLECTION YEAR_2015
FACILITY NAME ERICO International Corporation SAMPLE PERIOD ❑Jan-June ❑July-Dec
COUNTY Moore or ® Monthly* December (month)
PERSON COLLECTING SAMPLES_Frank Bryant DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Microbac Lab Cert.#_NCDNR#11 ❑Zero-flow ❑Water Supply ESA
Comments on sample collection Or analysis:_Outfall#1 &Outfall#2 ❑Other
samples were taken after a dolomite lime check dam was installed RECEIVEDD
prior to each outfall LEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
MAY 2 4 2016
. Part A: Stormwater Benchmarks and Monitoring Results CENTRAL FILES
DWR SECTION No discharge this period?2
Date Sample 24-hour rainfall pH,
Non-Polar O&G/ Total Toxic
Outfall No. 1 Total Suspended Solids Copper Lead Zinc Total Petroleum 5
Collected amount, Standard units' Organics
(mo/dd/yr) Inches3 Hydrocarbons
Benchmarks===> - - 100 mg/L 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
Outfall#1 12-17-15 0.20 18.3 7.2 0.643 0.004 0.247 <5.00 N/A _
Outfall#2 12-17-15 0.20 4.80 7.3 0.247 <0.003 0.172 <5.00 N/A
1 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.
3The 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.
5 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: 11/1/2012-10/31/2017 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."
y^t0-7\
Name(Print name)
Title(Prin title)
f/..04.4.-gr"
•
(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 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?2
Date Sample 24-hour rainfall
Outfall No. Collected) amount, Non-polar O&G/TPH by
(mo/dd/yr) Inches3 EPA 1664(SGT-HEM) Total Suspended Solids pH
Benchmarks===> - - 15 mg/L 100 mg/L or 50 mg/L* 6.0—9.0 SU
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.
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.
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: Mr. Mike Lawyer
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."
OS--2--2-- /(�
(Signature o Permittee) (Date)
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3