NCG030333_MONITORING INFO_20180809

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/v UCD,3� ''33
DOC TYPE
J❑HISTORICAL FILE
u7�MONITORING REPORTS
DOC DATE
❑
YYYYMMDD

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted August 9, 2018
CERTIFICATE OF COVERAGE NO. NCG030033.
FACILITY NAME Isometrics, Inc.
COUNTY ROCKINGHAM
PERSON COLLECTING SAMPLES J FREI/,SwSG
LABORATORY Pace Anahrti l _ __ Lab Cert. # 12/ 40/ 633
Comments on sample collection or analysis: pH measured b
Stormwater Services Group (Lab Cert No. 5054)
Part A: Stormwater Benchmarks and Monitoring Results
•
SAMPLE COLLECTION YEAR Year 6 Period 1
SAMPLE PERIOD [] Jan -June Q July -Dec
or ❑ Monthly' (month)
RECE *ARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
AUG 2 4 2Ut8 ❑zero -flow ❑water supply ❑SA
130ther C
CENTRAL FILES PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
0WR SECTION
❑ No discharge this period?z
Outfall No.
Date Sample
Collected)
(mo/dd/yr)
24-hour rainfall
amount,
Inches)
Total Suspended Solids
pH,
standard units
Copper
Lead
-
Zinc
Non -Polar O&G/
Total Petroleum
Hydrocarbons
Total Toxic
Organlc55
Benchmarks ==>
_
-
100 mg/L or So mg/L
6.0 — 9.0
0.007 mg/L
0.03 mg/L
0.067 mg/L
15 mg/L
1 mg/L
001
07/22/18
0.84"
14.8
6.83
0.15
< 0.0050
0.039
< 5.0
n/a
002
07/22/18
0.84"
< 5.0
6.95
0.022
< 0.0050
< 0.010
< 5.0
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.
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.
'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/l/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 1 of 3

Facilitie* incorporate a solvent management plan into the 5tormwater Lion Prevention Plan may so certify, and the requirement for TTC&itoring
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 Tfo 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), 1 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."
//Z"
Name (Print name) _
Cl IE
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,, u<XX mpji" 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.
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 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 yosort a sample value in excess of the benchmark, you must impleAWTier 1, Tier 2, or Tier 3 responses. See General Permit text •
N.
FOR PART AAND PART 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 BENCH MARK EXCEEDENCES FOR THE SAME PARAMETER AT ANY ONE OUTFALL? YES Ed NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES 0 NO ❑
REGIONAL OFFICE CONTACT NAME: Glenn White
Moil an original and one MAy of thFs DMR, Including al! `71fo D_ischorae� reports, within 30 days of recelot of the lab results (or at end of monitorin4 period
in the case of "No Discharge" Egeorts) to:
Division of Water Resources
Attn: DWR 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."
ISignature of
�4
EDate}
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwater Dame Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted March 1, 2018
CERTIFICATE OF COVERAGE NO. NCG030033 SAMPLE COLLECTION YEAR Yr 5 Pd 2
FACILITY NAME Isometrics, Inc. SAMPLE PERIOD ❑ Jan June ❑ July -Dec
COUNTY ROCKINGHAM -RECEIV�I �� or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES J FREI/ SwSG _ DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
lytic LABORATORY Pace Anaal Lab Cert. # 12/ 40/ 633 MAR 2 2 Z018 ❑Zero -flow [—]Water Supply ❑sA
Comments on sample collection or analysis: ^ pH measured by - CENTRAL FILES 00ther C
Stormwater Services Group (Lab Cert No. 5054) VWR SECTION
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
Part A: Stormwater Benchmarks and Monitoring Results
❑ No discharge this period?"
Outfall No.
Date Sample
I
Collected'
[mo/dd/yr)
24hour rainfall
amount,
Inches
Total Suspended
Solids
pH,
Standard units
Copper
�
Lead
Zinc
Nora-Polar O&G/
Total Petroleum
HydrocarbonsOrganc�
Total Toxic
5
Benchmarks
100 mg/L
6.0 — 9.0
0.007 mg/L
0.03 mg/L
0.067 mg/L
15 mg/L
1 mg/L
001 (hdpe pipe)
02/11/18
0.25"
119
7.63
0.043
0.044
0.12
< 5.0
n/a
002 (conc flume)
02/11/18
0.25"
11.0
1 8.26
1 0.013
< 0.0050
0.10
< 5.0
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 fora waiver of the rain gauge requirement.
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 tencorporate a solvent management plan into the Stormwater Poen Prevention Plan may so certify, and the requirement for TTO n#oring
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."
Name (Print name)
CGS 11�,�. -
Title (Print tittle))
(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. "4_ X m Lp, 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, Trer 2, or rer 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?Z
Outfal! No.
Date Sample
Collected;
(rrto/dd/yr)
24hour 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 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: 1111/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 2 of 3

Note: If ADeport a sample value in excess of the benchmark, you must impent Tier 1, Tier 2, or Tier 3 responses. See General Permit text 0
FOR PART AND PART B MONITORING RESULTS:
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART it 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 EXCEEDANCES FOR THE SAME PARAMETER AT ANY ONE OUTFALL? YES 0 NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES 0 NO ❑
REGIONAL OFFICE CONTACT NAME: Glenn White
Mai! an original and one copy of this DMR, including all "No Discharge"' reports, within 30 days of recgi)?t of the lab results (or at end of monitoring Derlod
in the case of No Discha e"'re orts to:
Division of Water Resources
Attn: DWR 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 tines and imprisonment for knowing violations."
(Signature of
1/0/o114�
( Date)
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwater D&arge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted August 24, 2017
CERTIFICATE OF COVERAGE NO. NCG030033�`
FACILITY NAME - Isometrics, Inc.
COUNTY ROCKINGHAM
PERSON COLLECTING SAMPLES J FREI/ SwSG
LABORATORY Pace Analytical Lab Cert. # 12/ 40/ 633_ .
Comments on sample collection or analysis: pH measured by
Stormwater Services Group Lab CertNo. 5054
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLEC71ON YEAR 2017
SAMPLE PERIOD H Jan -June ❑ July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
RFr,Fl\/E® bother C
SEP 18 ZOPLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
DIP, SECT ION
11%7ORRAI IGN PROCESSM UNIT
❑ No discharge this period?Z
{
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Total Suspended Solids
pH,
Standard units
Copper
Lead
Zinc
Non -Polar O&G/
Total Petroleum
Hydrocarbons
Total Toxic
Organics;
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
001
08/07/17
0.48"
82.6
7.11
0.12-
< 0.0050
0.015
< 5.0
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.
$ 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 t.ncorporate a solvent management plan into the Stormwater Poon Prevention Plan may so certify, and the requirement for TTO n�oring
maybe 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:
1
"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."
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 valve 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
Outfall No.
Date Sample
Collectedl
(mo/dd/yr)
24-hour rainfall
amount,
Inche53
Non -polar O&G/TPH by
EPA 1664 (SGT-HEM)
Total Suspended Solids
pH
Benchnwrks -->
_
-
15 mg/L
100 mg/L or 50 mg/L*
6.0 — 9.0 SU
Footnotes from Part A also apply to this Part 8
*.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 *port a sample value in excess of the benchmark you must imp4ent 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 0 NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES 0 NO ❑
REGIONAL OFFICE CONTACT NAME: Glenn White
Mail an original and one copy of this DMIi including all "No Discharae" reports, within 30 days of receipt of the lab results for at end of monitorina aerrod
in the rase of "No Dischame" reportsl to:
Division of Water Resources
Attn: DWR 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."
41KL1 11-Ael.�W17
(Signature of Permittee)
Permit Date: 11/l/2012-10/31/2017
(Date)
SWU-245, last revised 10/25/2012
Page 3 of 3

• Semi-annual Stormwater Dtharge_Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG0300
Date submitted December 16 2015
CERTIFICATE OF COVERAGE NO. NCG03-0033
FACILITY NAME Isometrics 1 c.
COUNTY _ ROCKINGHAM
PERSON COLLECTING SAMPLES, J FREI/ SwSG
LABORATORY Pace Analytical_ Lab Cert. # ^ice 40/ 633
Comments on sample collection or analysis: __pH measured by
Stormwater Services Group Lab Cert No. 5054
Part A: Stormwater Benchmarks and Monitoring Results
•
CO)
SAMPLE COLLECTION YEAR 2015
SAMPLE PERIOD ❑ Jan -June 0 July -Dec
or ❑ Monthly" (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Tro4t ❑PNA
❑Zero -flow []Water Supply ❑SA
. 00ther _ C
RECEIVED PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
DEC 2 2 2015 .f.
CENTRAL FILF=� ❑ No discharge this period??
Outfall No.
Date Sample
Collected"
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Total Suspended Solids
Ld
pH,
Standard units
T ON
Copper
Lead
Zinc
Non -Polar O&c/Total
Total Petroleum
Hydrocarbons
Toxic
Organics5
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
i mg/L
002
06/18/15
0.56"
38.6
7.05
0.0050
< 0.0050
0.023
< 5.0
n/a
002
11/30/15
1.29"
21.8
7.66
0.012
0.0067
0.047
5.2
n/a
f Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfali.
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.
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. incorporate a solvent management plan into the Stormwater Pd&n Prevention Plan may so certify, and the requirement for TTO r�toring
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•• 4
Permit. For those facilities electing to employ the TTO monitoring waiver, the discharger shall sign the following certification statement:
`uBased 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."
lje�fTie
Name (Print name)
"_ _j
Title (Print title) .
a �Z9 15
(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 mg1V 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 I, 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
Outfall No.
Date Sample
Collected
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Non -polar O&G/TPH by
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 eeport a sample value in excess of the benchmark, you must impont 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 H
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES [I NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an original and one ropy of this DMR, induding all "No Discharge" reports, within 30 days of receipt of the lab results for at end of monitoringperiod
in the case of "No Discharge"" reports]
Division of Water Resources
Attn: DWR 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."
(Signature of Permittee)
Permit Date:11/1/2012-10/31/2017
)SDI 2©1S
(Date)
SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwateoischarize Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
r— Date submitted July 20, 2015
CERTIFICATE OF COVERAGE NO. NCG030033
FACILITY NAME _ isometrics, Inc. _
COUNTY ROCKINGHAM
PERSON COLLECTING SAMPLES J FREI/ SwSG
LABORATORY Pace Analytical Lab Cert. # 12/ 40/ 67
Comments on sample collection or analysis: pH measured by
Stormwater Services Group Lab Cert No. 5054
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLECTION YEAR 2015
SAMPLE PERIOD ® Jan -June ❑ July -Dec
RECQyj or ❑ Monthly) _/month)
'pp SjjARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
NOV 10 Z015 ❑Zero -flow [:]Watersupply [:]SA
CENTRAL FILES HOther C
DWR SECTION PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3
No discharge this period?Z
-� C3
`w
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Total Suspended Solids
pH,
Standard units
Copper
Lead
Zinc
Non -Polar O&G/Total
Total Petroleum
Hydrocarbons
Toxic
Organicss
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
i mg/L
002
06/18/15
0.56"
38.6
7.05
0.0050
< 0.0050
0.023
< 5.0
n/a
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.
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 tha rporate a solvent management plan into the Stormwater Pollu*revention Plan may so certify, and the requirement for TTO moring
may be waive The solvent management plan shall include a list of the total toxic organic compounds used and the other elements listed in the Genera
Permit. Fgr 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."
Name (Print name)
Title (Print title) ?�
10 Vol
(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 mpJL", 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 Z 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 ?z
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 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:wu report a sample value in excess of the benchmark, you must Wment Tier 1, Tier 2, or Tier 3 responses. See General Permit teo
FGR-PART A AND PART B MONITORING RESULTS:
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART 11 SECTION B.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER ATTHE 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 ANYONE OUTFALL? YES ❑ NO M
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an original and one copy of this DMR, including "No Discharae" reports within 30 days of receipt oche !ab results jor at end of monitoring period
in the case of "No Discharue" reports) to:
Division of Water Resources
Attn: DWR 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."
(Signature of Permittee)
Permit Date: 11/1/2012-10/31/2017
14 0 oil-, 20
or -
(Date)
SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwater Discharge Monitoring Report RECEIVED
for North Carolina Division of Water Quality General Permit No. NCG030000 JAN 0 8 2015
Date submitted January 6, 2015
CERTIFICATE OF COVERAGE NO. NCG 030033
FACILITY NAME Isometrics. Inc.
COUNTY ROCKINGHAM
PERSON COLLECTING SAMPLES J FREI/ SwSG
LABORATORY_ Pace AnaWlcal Lab Cert. # 12/ 40167
Comments on sample collection or analysis: pH meas. ured _by
Stormwater Services Group il-ab Cert No. 5054)
Part A: Stormwater Benchmarks and Monitoring Results
CENTRAL FILES
SAMPLE COLLECTION YEAR 2014 DWR SECTION
SAMPLE PERIOD ❑ Jan -June 0 July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
0other C
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 -->
❑ No discharge this period?Z
Outfal! No.
Date Sample
eoilectedl
(mo/dd/yr)
24-hour rainfall
amount,
lnches3
Total Suspended Solids
pH,
Standard units .
Copper
Lead
Zinc
Non -Polar O&G/
Total Petroleum
Hydrocarbons
Total Toxic
Organicss
.Benchmarks
-
-
100 mg/L or 50 mg/L
6.0 — 9.0
0.007 mg/L
0.03 mg/L
0.067 mg/L
is mg/L
1 mg/L
002
08/12/14
0,70'
1660
6.91
0.039
0.0088
0.092
< 5.0
n/a
002
12/24/14
0.81"
48.7
6.99
0.0063
< 0.0050
0.052
< 5.0
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.
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.
° 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
Llv
�J
80.
L&W

• . 0
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."
Name (Print name)
�SiGaJ `�p�"1sMa�
Title (Print title)
LJ1�
(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. !f you report a sample value in excess of the benchmark, you must implement Tier 1, Trer 2, or Tier 3 responses. See General Permit text
Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new ail per month.
❑ No discharge this period?'
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches;
Non-potar O&G/TPH by
EPA 1664 (SGT-HEM)
Total Suspended Solids
pH
Benchmarks
is mgJL
100 mg/L or SO 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:11/112012-10/31/2017
SWU-245, last revised 10/25/2012
Page 2 of 3

Note: !f you report a sample value in excess of the benchmark, you must implement Tier 1, Ter 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 ATTHE 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:
Mail an original and one copy 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 Resources
Attn: DWR 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."
of
Ipf OS
(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 January 6 2015
CERTIFICATE OF COVERAGE NO. NCG030033
FACILITY NAME _Isometrics. Inc.
COUNTY ROCKINGHAM
PERSON COLLECTING SAMPLES J FREI/ SwSG
LABORATORY Pace Analytical Lab Cert. ii 12/ 40/ 67
Comments an sample collection or analysis: __ off measured by
Stormwater Services_Group_(Lab Cert No. 5054)
Part A: Stormwater Benchmarks and Monitoring Results
•
SAMPLE COLLECTION YEAR 2014
SAMPLE PERIOD ❑ Jan June ® July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water supply [:]SA
®Other C
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 --)
❑ No discharge this period?Z
u
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hoar rainfall
amount,
Inches'
Total Suspended Solids
pH,
Standard units
Copper
Lead
Zinc
Non -Polar O&G/
Total Petroleum
Hydrocarbons
total Toxic
Organics'
Benchmorft ==>
_
-
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/1
1 mg/L
002
08/12/14
0.70"
1660
6.91
0.039
0.0088
0.082
< 5.0
n/a
002
12/24/14
0.81"
48.7
- 6.99
0.0063
< 0.0050
0.052
< 5.0
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.
"See General Permit, Table 3 identifying the especially sensitive receiving water classifications where the more protective benchmark applies. ,
-'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
5WU-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."
Name (Print name)
Title( Print title) _
(Signature) j ,+ (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 ma/L", where XX is the numerical value of the detection
limit, reporting limit, etc- in mg/L.
Note: 1f you report a sample value in excess of the benchmark, you must implement Tier I, 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.
Q No discharge this period?'
Outfa[I No.
Oate 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 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 EXCEEOANCES IN A ROW FOR THE SAME PARAMETER ATTHE 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 ANYONE OUTFALL? YES ❑ NO 0
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail on original and one copy of this DMR, including all "Xo Discharae"reports, within 30 days of receipt of the lab results for at end of monitoring period
in the case of "No Discharae" reports! to:
Division of Water Resources
Attn: DWR 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."
(Signature of Permlttee)
Permit Date:11/1/2012-10/31/2017
—)0-&1 C57 20 IS
(Date)
SWU-245, last revised 10/25/2012
Page 3 of 3

0• 0
Semi-annual Stormwater Discharge Monitoring Report
for North Carolina, Division of Water Quality General Permit No. NCG030000
Date submitted Se tember 2 2014
CERTIFICATE OF COVERAGE NO. NCG030033 SAMPLE COLLECTION YEAR 2024
FACILITY NAME Isometrics. Inc. SAMPLE PERIOD ❑ Jan -June 0 July -Dec
COUNTY ROCKINGHAM or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES J FREI/ SwSG PS� ING TO CLASS ❑ORW ❑HQW [:]Trout ❑PNA
LABORATORY Pace Analytical Lab Cert. # 12/ 40/ 67 RECEI ❑Zero -flow ❑Water Supply ❑SA
Comments an sample collection or analysis: _pH measured by 00ther C
Stormwater Services Group (Lab Cert No. 5054) _ AUG 2 9 20 i4
CENTRAL FILES PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
Part A: Stormwater Benchmarks and Monitoring Results 'DWQ/BOG
❑ No discharge this period?Z
0:
Outfall No.
Date Sample
Collected)
Imo/ddlyr)
24-hour ra}nfall
amount,
Inches'
Total Suspended Solids
pH,
Standard units
Copper
�
Lead
Zinc
Non -Polar O&GJ
Total Petroleum
Hydrocarbons
Total Toxic
Organicss
Benchmarld =-a
-
-
100 mg/L or 50 mgJL
6.0 — 9.0
0.007 mg/L
0.03 mg/L
0.067 mg/L
1S mgJL
1 mg/L
002
08/12/14
0.70-
2660
6.91
0.039
0.0088
0.082
< 5.0
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.
`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 5WU-245, last revised 10/25/2012
Page 1 of 3

0
Facilities that incorporate a solvent management plan into the Stormwater Pollution Prevention Plan may so certify, and the requirement for TTO monitoring
nay 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. 1 further certify that this facility is implementing the all the provisions of the
solvent management plan included in the Stormwater Pollution Prevention Plan."
IN4XCKW
Name (Print name)
Title (Print title)
�J
(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, s<XX mtt/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.
Q No discharge this period??
Oatfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inthes3
Non -polar O&G/TPH by
EPA 16M (SGT-HEM)
Total Suspended Sorids
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

0
r�]
Note: !f 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 PARTS MONITORING RESULTS:
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART 11 SECTION B.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS. SEE PERMIT PART It SECTION B.
• TIER 3: HASYOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANY ONE OUTFALL? YES ❑ NO H
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REG 10 NAL OFF ICE CONTACT NAME:
•
Mogan original and one copy of this DMR, includina off "No Discharge" reports, within 30 days of receipt of the lab results for at end of monitoringye d
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."
(Signature of Permlttee)
Permit Date_11/1/2012-10/31/2017
?& A V, S, -wif
(Date)
SWU-245, last revised 10/25/2012
Page 3 of 3