NCS000360_Renewal application_20220523

DEPARTMENT OF HEALTH & HUMAN SERVICES
May 20, 2022
Ms. Brianna Young, Industrial Individual Permits Coordinator
Stormwater Program
NCDEQ / Division of Energy, Minerals and Land Resources (DEMLR)
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
Dear Ms. Young:
Public Health Service
National Institutes of Health
National Institute of
Environmental Health Sciences
P. O. Box 12233
Research Triangle Park, NC 27709
Website: htto://www.niehs.nih.gov
RECEIVED
OEMLR-Stormwater Program
The NIEHS requests renewal of NPDES Stormwater Permit NCS000360. Two copies of the completed
application forms and supporting materials are enclosed for your review. The permit application package
includes NPDES Application Form 1, NPDES Application Form 2F as well as associated tables, maps,
and supplemental information.
Note that the data period covers the entire permit term, which began in September 2010. Also, facility
information in the Stormwater Permit Summary report for NIEHS was reviewed and updated in
accordance with your request. Please do not hesitate to contact me at [phone] if you have any
questions concerning this individual stormwater permit renewal application.
�Siinncerrellyy,
4Vifi/G�t
William K. Steinmetz
Environmental Compliance Specialist
Enclosures

EPA Identifrcafion Number
NPDES Permit Number
Fadlity Name
Form Approved 03/05119
110060508954
N CS000360
NIEHS
OMB No. M4040M
Form
U.S. Environmental Protection Agency
1
\G/EPA
Application for NPDES Permit to Discharge Wastewater
NPDES
GENERAL INFORMATION
REQUIRINGSECTION 1. ACTIVITIES .D ,1 and
1.1 Applicants Not Required to Submit Form 1
1.1.1
Is the facility a new or existing publicly owned
1.1.2
Is the facility a new or existing treatment works
treatment works?
treating domestic sewage?
If yes, STOP. Do NOT complete No
If yes, STOP. Do NOT No
Form 1. Complete Form 2A.
complete Form 1. Complete
Form 2S.
1.2
Applicants Required to Submit Form 1
1.2.1
Is the facility a concentrated animal feeding
1.2.2
Is the facility an existing manufacturing,
operation or a concentrated aquatic animal
commercial, mining, or silvicultural facility that is
v.
production facility?
currently discharging process wastewater?
o
Yes + Complete Form 1 DQ No
El Yes 4 Complete Form No
z
and Form 213.
1 and Form 2C.
1.2.3
Is the facility a new manufacturing, commercial,
1.2.4
Is the facility a new or existing manufacturing,
mining, or siivicultural facility that has not yet
commercial, mining, or silvicultural facility that
z
commenced to discharge?
discharges only nonprocess wastewater?
'
m
Yes 4 Complete Form 1 IQ No
Yes 4 Complete Form No
ac
and Form 2D.
1 and Form 2E.
2
;9
1.2.5 Is the facility a new or existing facility whose
discharge is composed entirely of stormwater
a
associated with industrial activity or whose
discharge is composed of both stonnwater and
non-stonnwater?
Yes 4 Complete Form 1 [] No
and Form 2F
unless exempted by
40 CFR
122.26(b)(14)(x) or
b 15 .
SECTION
2. NAME, MAILING ADDRESS, .1 CFR
2.1 Name
-Facility
National Institute of Environmental Health Sciences (NIEHS)
0
2.2
EPA Identification Number
8
110060508954
cw
2.3
Facility Contact
Name (first and last)
Title
Phone number
a
William K. Steinmetz
Environmental Compliance Specialist
984-287-3396
Email address
Steinme1 @niehs.nih.gov
aar
2A
Facility Mailing Address
c
Street or P.O. box
P.O. Box 12233 (MD FO-07)
City or town
State
ZIP code
Research Triangle Park
NC
27709
EPA Form 3510-1 (revised 3-19) Page 1

EPA ldenfifxetbn Number
NPDES Permft Number-
Fadlity Name
Fonn Approwd 0310119
110060508954
NCS000360
NIEHS
OMB No. 2040-0004
' m
2.5
Facility Location
>° c
Street, route number, or other specific identifier
a 0
111 T.W. Alexander Dr
A c
County name
County code (if known)
° W
Durham
E �
City or town
State ZIP code
z �,
Research Triangle Park
NC 27709
SECTION•r
r
3.1
SIC Code(s)
Description (optional)
9199
N
N
0
O
U
U
0
z
3.2
NAICS Code(s)
Description (optional)
v
923120
Administration of Public Health Programs
4.1
1Name of Operator
National Institute of Environmental Health Sciences (NIEHS)
`0
4.2
Is the name you listed in Item 4.1 also the owner9
E
❑ Yes ® No United States Government
_o
4.3
Operator Status
® Public —federal ❑ Public —state ❑ Other public (specify)
o
❑ Private ❑ Other
(specify)
4.4
Phone Number of Operator
984-287-3400
4.5
OperatorAddress
Street or P.O. Box
€ m
P.O. Box 12233 (MD FO-07)
F
City or town
State
ZIP code
0 0
Research Triangle Park
NC
27709
o
Email address of operator
[e-mail]
SECTION
5. r
• •I
5.1
Is the facility located on Indian Land?
C J
❑ Yes ® No
EPA Form 3510-1 (revised 3.19) Page 2

EPA Identification Number NPDES Permft Number Facility Name Form Approved 03105A9
110060508954 NCS000360 NIEHS OMB No. 2040-M
ENVIRONMENTALSECTION 6. EXISTING r
6.1 Existing Environmental Permits (check all that apply and print or type the corresponding permit number for each)
E]�
NPDES (discharges to surface
RCRA (hazardous wastes)
❑ UIC (underground injection of
e
ES A
water)
NCS000360
NC2750890004R2
fluids)
W d
❑ PSD (air emissions)
❑ Nonattainment program (CAA)
NESHAPs (CAA)
c
NCDAQ Permit, 04226R36
Z
❑ Ocean dumping (MPRSA) ❑ Dredge or fill (CWA Section 404) DQ Other (specify) Durham County
Industnal User Permit DG007
SECTIONm
7.1
Have you attached a topographic map containing all required information to this application? (See instructions for
W
specific requirements.)
[Yes []No ❑ CAFO—Not Applicable (See requirements in Form 2B.)
SECTIONOF
r
8.1
Describe the nature of your business.
The NIEHS is part of the National Institutes of Health. The NIEHS mission is to discover how
the environment affects people in order to promote healthier lives. Mission includes research
performed in onsite laboratory facilities and grant programs that support offsite research at
universities, hospitals, businesses, and other organizations around the country.
m
's
t
A
z
SECTION
••
r
9.1
Does your facility use cooling water?
❑ Yes M No + SKIP to Item 10.1.
3
9.2
Identify the source of cooling water. (Note that facilities that use a cooling water intake structure as described at
2
40 CFR 125, Subparts I and J may have additional application requirements at 40 CFR 122.21(r). Consult with your
—
NPDES permitting authority to determine what specific information needs to be submitted and when.)
m
8�
L
Not applicable
SECTIONr
VARIANCE
REQUESTSr r
10.1
Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)? (Check all that
apply. Consult with your NPDES permitting authority to determine what information needs to be submitted and
when.)
m
❑ Fundamentally different factors (CWA ❑ Water quality related effluent limitations (CWA Section
m
Section 301(n)) 302(b)(2))
A
❑ Non -conventional pollutants (CWA ❑ Thermal discharges (CWA Section 316(a))
Section 301(c) and (g))
Not applicable
EPA Form 3510.1 (revised 3-19) Page 3

EPA idendcation Number
NPDES Permit Number
Facility Name Form Approved 03/05/19
110060508954
NCS000360
N I EHS OMB No.2040-0004
SECTION
11. CHECKLIST
11.1
AND CERTIFICATION STATEMENT (40 CFR 122.22(a) and (d))
In Column 1 below, mark the sections of Form 1 that you have completed and are submitting with your application.
For each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note
that not all applicants are required to provide attachments.
Column 1
Column 2
Dj Section 1: Activities Requiring an NPDES Permit
❑ w/ attachments
Section 2: Name, Mailing Address, and Location
❑ w/ attachments
Section 3: SIC Codes
❑ w/ attachments
Section 4: Operator Information
❑ wl attachments
DQ Section 5: Indian Land
❑ wl attachments
�[ Section 6: Existing Environmental Permits
❑ wl attachments
m
iE
DO Section 7: Map
/ topographic
W ww/ ❑ w/ additional attachments
D9 Section 8: Nature of Business
❑ w/ attachments
o
Dq Section 9: Cooling Water Intake Structures
❑ w/ attachments
,C
.o
Section 10: Variance Requests
❑ wl attachments
w
DQ Section 11: Checklist and Certification Statement
Elw/ attachments
x
11.2
Certification Statement
c�
1 certify under penalty of /aw that this document and all attachments were prepared under my direction or supervision
in accordance with a system designed to assure that qualfied 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. / am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Name (print or type first and last name)
Official titre
William K. Steinmetz
Environmental Compliance Specialist
Signature
Date signed
20 ZO2 Z
EPA Form 3510-1(mVwd 349) Page 4

NIEHS - NPDES Application Form 1 / Section 7 Topographic Map

NIEHS (NCS000360) Permit Application Supplemental Information
I. Significant changes in NIEHS industrial activities
The Building 108 Waste Handling Facility is the NIEHS industrial activity that triggers individual stormwater
permitting in accordance with 40 CFR 122.26(b)(14) - Category Four (iv): Hazardous waste treatment, storage,
and disposal facilities. There have been no significant changes in industrial activities at the NIEHS Waste
Handling Facility during this stormwater permit term.
II. Statement of Operational Changes:
The following operational changes occurred during the current permit term.
Operational Updates (Additions):
2010 — A sulfuric acid (50%) storage tank with a 500-gallon capacity was installed inside Building 105. The
sulfuric acid is used as part of a reverse osmosis water treatment process. Deliveries occur about two or three
times per year and are limited to 375 gallons each. The storage tank is double walled for secondary containment
purposes. Supplies for responding to corrosive acid spills are stored at this site.
2016 — A diesel -fueled emergency generator with a 1600-gallon base tank was installed on the NIEHS Campus
just south of Building 102. Deliveries are infrequent and the base tank is double walled for secondary
containment purposes. This tank is covered by the NIEHS SPCC Plan.
2017 — The Building 110 Warehouse became operational in July 2017. The warehouse, located at 105 TW
Alexander Drive has a different physical address from the NIEHS Main Campus (111 TW Alexander Drive).
Warehouse activities include shipping and receiving via ground transport. There are no industrial activities at
this site. The warehouse is certified LEED platinum, which is due in part to minimal impervious surface.
A diesel -fueled emergency generator with a 500-gallon base tank provides backup power at the warehouse.
Fuel deliveries are infrequent, and the base tank is double walled for secondary containment purposes. Spill
supplies are stored at this location. This tank is covered by the NIEHS SPCC Plan.
2018 - A brine solution (sodium chloride) tank with a 3400-gallon capacity was installed to support a centralized
water softening system in the Building 105 central utility plant. The tank is located outside, southwest of
Building 105, in a concrete secondary containment basin that has a capacity of about 3700 gallons. The
containment release valves are kept locked except during drainage events. Rainwater is evaluated for
conductivity before each drainage event. Deliveries occur about two or three times per year.
2019 — A diesel -fueled emergency generator with a 137-gallon base tank was installed on the NIEHS Campus
near the Main Entrance Guardhouse. Deliveries are infrequent and the base tank is double walled for secondary
containment purposes. Spill supplies are stored at this location. This tank is covered by the NIEHS SPCC Plan.
Operational Updates (Deletions):
2016 - The 2000-gallon capacity E85 (85% ethanol / 15% gasoline) aboveground storage tank and associated
fuel dispensing station was removed from the NIEHS Campus. Tanker truck deliveries of E85 ended in 2010.
2017 — The 300-gallon capacity diesel fuel tank and associated emergency generator was removed from the east
side of Building 102.
III. Verification of Original Application Completeness:
All information submitted with the March 2015 renewal application was complete and correct. This current
renewal application covers the entire duration of the permit term from September 201P to the present.
V"I.Ir - 72-
"I(
'0/
William K. Steinmetz / NIEHS / Environm tal Compliance Specialist

EPA ldentifloation Number NPDES Permit Number Facility Name Forth Approved03105119
110060508954 NCS000360 I NIEHS OMB No. 2040-0004
Form U.S Environmental Protection Agency
2F \��EPA Application for NPDES Permit to Discharge Wastewater
NPDES A STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTMTY
SECTIONOUTFALL LOCATION•r
1.1 Provide information on each of the facili s outfaUs in the table below
Outrall Receiving Water Name Latitude Longitude
Number
See attached Table '
0
U
O
N
O
SECTION• r
2.1 Are you presently required by any federal, state, or local authority to meet an implementation schedule for constructing,
upgrading, or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes X No 4 SKIP to Section 3.
2.2 Briefly identify each applicable project in the table below.
Brief Identification and Affected Outfalls Final Compliance Dates
Description of Project (listoulfall numbers) Source(s) of Discharge
Required Projected
Not Applicable
IE
m
e
n
E
2.3 Have you attached sheets describing any additional water pollution control programs (or other environmental projects
that may affect your discharges) that you now have underway or planned? (Optional Item)
❑ Yes (R( No Not Applicable
EPA Form 3510-2F (Revised 3-19) Page 1

EPA (dentifIcation
Number NPDES Permit Number Fadlity Name Form Approved 0=5119
110060508954
1 NCS000360 NIEHS OMB No.2040-0004
SECTION-.
.• .t CFR
a 3.1
w c C
c
Have you attached a site drainage map containing all required information to this application? (See instructions for
specific guidance.)
Yes See attached PowerPoint file ❑ No
4.1
Provide information on the facility's pollutant sources In the table below.
cutfall
Impervious Surface Area
Total Surface Area Drained
Number
(wbtn a mile radius of the fadlity)
(within a mile radius of the fadlny
specify units
specify units
See attached Table
specify units
spefaify units
specify units
specify units
specify units
specilj► units
Specify units
specify units
specify units
spe* units
4.2
Provide a narrative description of the facility's significant material in the space below. (See instructions for content
requirements.)
All materials stored outdoors in significant quantities are protected from exposure to stormwater through secondary containment basins,
double -walled tank structures, and covered storage. These materials include an outdoor storage capacity of 285.000 gallons of fuel oil for
emergency generators and boiler plant use along with 3400 gallons storage capacity of Brine solution for use in the water softening operation.
3.
N
Chemical pesticides are used only when absolutely necessary in accordance with Integrated Pest Management (IPM) principles and in a
manner that is safe to NIEHS personnel, wildlife, and the environment. No "Restricted Use" pesticides are used on the NIEHS Campus.
All personnel involved with fertilizer application must be certified through the COOP Extension Service. In addition, fertilizer is not applied
within 50 feet of campus waterbodles as per Jordan Lake buffer zone requirements. Herbicides are only used for spot treatment of noxious,
invasive, or aggressive weeds.
O
Ill
The Waste Handling Facility (WHF) stores dwmical waste from the NIEHS laboratories in preparation for disposal. The waste is packaged, labeled and placed
in secondary containment before being transported to the VMF. The waste storage areas in the WHF keep in ompatfbte materials separated and provide
secondary containment for stored containers. There are no floor drains in the chemical storage areas and the floors within each room are sloped to prevent
spill migration both from room to room and to the building exterior.
4.3
Provide the location and a description of existing structural and non-structural control measures to reduce pollutants in
stormwater runoff. See instructions forspecificguidance.)
Stomrwater Treatment
Codes
Outfall
Number
Control Measures and Treatment
from
Exhibit
2F 4
See Attached Table
EPA Form 3510-2F (Revised 3-19) page 2

EPA Identfication Number NPDES Permit Number Facft Name Form Approved 03105/19
110060508954 1 NCS000360 I NIEHS I OMB No.204MM
5.1
1 certify under penalty of law that the outfall(s) covered by this application have been tested or evaluated for the
presence of non stormwater discharges. Moreover, 1 certify that the outfalls ident fred as having nonstormwater
discharges are described in either an accompanying NPDES Form 2C, 2D, or 2E application.
Name (print or type first and last name)
Official title
William K. Steinmetz
Environmental Compliance Specialist
Signature
Date signed
Z'l� ►1•
C�� Z-z 2
I=
5.2
Provide the testing
information requested in the table below.
_
Outfail
Onsite Orange Points
o
Number
Description of Testing Method Used
Oate(s) of Testing
Directly Observed
Ourthg Test
m
See attached Table
0
z
6.1 Describe any significant leaks or spills of toxic or hazardous pollutants in the last three years.
c�.
There have been no significant leaks or spills of toxic or hazardous pollutants on
the NIEHS Campus in the last three years.
8
c
m
See the instructions to determine the pollutants and parameters you are required to monitor and, in turn, the tables you must
oI complete. Not all applicants need to complete each table.
€ 7.1 Is this a new source or new discharge?
❑ Yes 4 See instructions regarding submission of No 4 See instructions regarding submission of
•
estimated data. actual data.
L Tables A, B, Cl and D
i 7.2 Have you completed Table A for each outfall?
Yes See attached Table A historical data ❑ No
EPA Form 3510-2F (Revised 3.19) Page 3

EPA Identification Number
NPDES Permit Number
Facility Name
Form Approved 0=5119
110060508954
NCS00036O
NIEHS
OMB No.2040MM
7.3
Is the facility subject to an effluent limitation guideline (ELG) or effluent limitations in an NPDES permit for its process
wastewater?
❑ Yes No 4 SKIP to Item 7.5.
7.4
Have you completed Table B by providing quantitative data for those pollutants that are (1) limited either directly or
indirectly in an ELG and/or (2) subject to effluent limitations in an NPDES permit for the facility's process wastewater?
❑ Yes M No Not applicable
7.5
Do you know or have reason to believe any pollutants in Exhibit 2F-2 are present in the discharge?
Yes ❑ No 4 SKIP to Item 7.7.
7.6
Have you listed all pollutants in Exhibit 2F-2 that you know or have reason to believe are present in the discharge and
provided quantitative data or an explanation for those pollutants in Table C?
See Table A and note that NIEHS
❑ Yes go No Table C pollutants are same as Table A
7.7
Do you qualify for a small business exemption under the criteria specified in the Instructions?
❑ Yes +SKIP to Item 7.18. No
7.8
Do you know or have reason to believe any pollutants in Exhibit 2F-3 are present in the discharge?
❑ Yes P( No 4 SKIP to Item 7.10.
7.9
Have you listed all pollutants in Exhibit 2F3 that you know or have reason to believe are present in the discharge in
Table C?
❑ Yes( No Not applicable
a.
7.10
Do you expect any of the pollutants in Exhibit 2F-3 to be discharged in concentrations of 10 ppb or greater?
ra
❑ Yes No 4 SKIP to Item 7.12.
101
7.11
Have you provided quantitative data in Table C for those pollutants in Exhibit 2F-3 that you expect to be discharged in
�
concentrations of 10 ppb or greater?
❑ Yes IX No Not applicable
cc
7.12
Do you expect acrolein, acrylonibile, 2,4-dinitrophenol, or 2-methyl-4,64nitrophenol to be discharged in concentrations
of 100 ppb or greater?
❑ Yes No 4 SKIP to Item 7.14.
7.13
Have you provided quantitative data in Table C for the pollutants identified in Item 7.12 that you expect to be
discharged in concentrations of 100 ppb or greater?
❑ Yes (( No Not applicable
7.14
Have you provided quantitative data or an explanation in Table C for pollutants you expect to be present in the
discharge at concentrations less than 10 ppb (or less than 100 ppb for the pollutants identified in Item 7.12)?
❑ Yes No Not applicable
7.15
Do you know or have reason to believe any pollutants in Exhibit 2F-4 are present in the discharge?
❑ Yes P( No 4 SKIP to Item 7.17.
7.16
Have you listed pollutants in Exhibit 2174 that you know or believe to be present in the discharge and provided an
explanation in Table C?
❑ Yes No Not applicable
7.17
Have you provided information for the storm event(s) sampled in Table D?
❑ Yes M[ No Not applicable
EPA Form 3510-2F (Revised 3-19) Page 4

EPA Identification Number
NPDES Permit Number
Facility Name
Form Approved 03A5119
110060508954
NCS000360
NIEHS
OMB No. 2040MM
o
Used or Manufactured Toxlcs
7.18
Is any pollutant listed on Exhibits 2F-2 through 2F-4 a substance or a component of a substance used or
manufactured as an intermediate or final product or byproduct?
❑ Yes iQ No 4 SKIP to Section 8.
e
0
7.19
List the pollutants below, including TCDD if applicable.
1• Not Applicable 4. 7.
m
EM
2. 5. 8.
t
0
0
3. 6. 9.
SECTION•
•GICAL TOXICITY TESTING DATA •r
8.1
Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made on
any of your discharges or on a receiving water in relation to your discharge within the last three years?
0
c
❑ Yes No + SKIP to Section 9.
8.2
Identify the tests and their purposes below. Not applicable
Tags)
PurpoceofTest(s)
Submitted to NPDES
Date Submitted
Permitting Authority?
F
❑ Yes ❑ No
S
0
❑ Yes ❑ No
0
m
❑ Yes ❑ No
SECTION•
•• • •r
9.1
Were any of the analyses reported in Section 7 (on Tables A through C) performed by a contract laboratory or
consulting firm?
P4 Yes ❑ No 4 SKIP to Section 10.
9.2
Provide information for each contract laboratory or consulting firm below.
Laboratory Number 1
Laboratory Number 2
Laboratory Number 3
Name of laboratory/firm
e
0
ENCO Laboratories
w
—`�
Laboratory address
w
102-A Woodwinds IndustriE
I Ct.
W
Cary, NC 27511
Phone number
919-467-3090
Pollutant(s) analyzed
Aluminum
BOD
COD
EPA Method 624 (VOC)
EPA Method 625 (SVOC)
Oil & Grease
Total Nitrogen
Total Phosphorus
EPA Form 3510-2F (Revised 3-19) Page 5

EPA tdenfrficatim Number
NPDES Permit Number Facility Name Form Approved 03105119
110060508954
NCS000360 NIEHS OMB No.204MIM
SECTIONi
10.1
- .i CFR
In Column 1 below, marls the sections of Form 2F that you have completed and are submitting with your application. For
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to oom lets all sections or pmvide attachments.
Column 1
Column 2
Section 1
Dg wl attachments (e.g., responses for additional outfalls)
❑ Section 2
❑ wl attachments
Section 3
wl site drainage map
Section 4
wl attachments
DO Section 5
wl attachments
Dq Section 6
❑ w/ attachments
Section T
Pq Table A ❑ w/small business exemption request
❑ Table B wl analytical results as an attachment
a
�gJ Table C ❑ Table D
❑ Section 8
❑ w/attachments
Section 9
❑ wlattachments (e.g., responses for additional contact laboratories or firms)
x
Section 10
❑
v
10.2
Certification Statement
1 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 line
and imprisonment for !mowing violations.
Name (print or type first and last name)
Official titre
William K. Steinmetz
Environmental Compliance Specialist
Signature
Date signed
C5 za 2(�:) z z
EPA Form 3510-21F (Revised 3-19) page 6

2F Section 1.Outfall Location (40 CFR 122.21(g)(1))
Outfall Number
Location
Receiving Water Name
Latitude
Longitude
Monitoring Purpose
1
Building 108
UT to Burdens Creek
N 35° 52' 40.483"
W 780 52' 34.466"
Analytical + Visual
2
Building 105
UT to Burdens Creek
N 35° 52' 38.959"
W 78° 52' 36.097"
Analytical + Visual
3
Building 104
UT to Burdens Creek
N 350 52' 43.751"
W 780 52' 25.726"
Visual Only
4
Building 103
UT to Burdens Creek
N 35° 52' 41.028"
W 780 52' 25.408"
Visual Only
5
A -Dock
UT to Burdens Creek
N 350 52' 36.808"
W 780 52' 41.013"
Visual Only
6
South Lot
UT to Burdens Creek
N 35° 51' 56.128"
W 78° 52' 45.831"
Visual Only
7
North Lot
UT to Burdens Creek
N 350 53' 7.964"
W 780 52' 51.190"
Visual Only
8
F-Module
UT to Burdens Creek
N 350 53' 8.090"
W 780 52' 38.790"
Visual Only

2F Section 4: Pollutant Sources (40 CFR 122.26(c)(1)(1)(B))
Outfall Number
Location
Impervious Surface Area (ft)
Total Surface Area Drained (ft)
Percent Imprevious
1
Building 108
26605
42399
62.75
2
Building 105
46732
131160
35.63
3
Building 104
40941
82178
49.82
4
Building 103
23723
43306
54.78
5
A -Dock
10942
16004
68.37
6
South Lot
146112
249678
58.52
7
North Lot
231235
338211
68.37
8
F-Module
92331
249678
36.98

2F Section 4: Pollutant Sources (40 CFR 122.26(c)(1)(1)(13))
Outfall Number
Location
Structural Controls
Non Structural Controls
Exhibit 2F-1 Codes
Secondary Containment /Locked
Training /Delivery Procedures /Spill
1
Building 108
Drain Valves / Controlled Access /
Response Plans / Nearby Spill Supplies
Not Applicable
WHF Trench Drain Containment
Secondary Containment /Oil -Water
Training / Delivery Procedures /Spill
2
Building 105
Separators / Locked Drain Valves /
Response Plans / Nearby Spill Supplies
Not Applicable
Controlled Access
3
Building 104
Secondary Containment / Locked
Training / Spill Response Plans / Nearby
Not Applicable
Drain Valves / Controlled Access
Spill Supplies
4
Building 103
Secondary Containment / Locked
Training / Spill Response Plans / Nearby
Not Applicable
Drain Valves / Controlled Access
Spill Supplies
5
A -Dock
NA - Cafeteria Loading Dock
Training / Spill Response Plans / Visual
Not Applicable
Inspections
6
South Lot
NA - Employee Parking Lot
Training / Spill Response Plans
Not Applicable
7
North Lot
NA - Employee Parking Lot
Training / Spill Response Plans
Not Applicable
Secondary Containment / Oil -Water
Training /Delivery Procedures /Spill
8
F-Module
Separators / Locked Drain Valves /
Response Plans / Nearby Spill Supplies
Not Applicable
Sediment Basin

2F Section 5.2 Non-Stormwater Discharge Evaluation
Outfalls
Testing Method
Completion Dates
Drainage Points Observed
1-8
Visual evaluation during semiannual stormwater walkthrough
11/23-24/2010
All
1-8
Visual evaluation during semiannual stormwater walkthrough
05/13/2011
All
1-8
Visual evaluation during semiannual stormwater walkthrough
10/14/2011
All
1-8
Visual evaluation during semiannual stormwater walkthrough
03/28/2012
All
1-8
Visual evaluation during semiannual stormwater walkthrough
10/16-19/2012
All
1-8
Visual evaluation during semiannual stormwater walkthrough
03/26-29/2013
All
1-8
Visual evaluation during semiannual stormwater walkthrough
11/18-25/2013
All
1-8
Visual evaluation during semiannual stormwater walkthrough
04/23-28/2014
All
1-8
Visual evaluation during semiannual stormwater walkthrough
10/30-31/2014
All
1-8
Visual evaluation during semiannual stormwater walkthrough
03/31/2015
All
1-8
Visual evaluation during semiannual stormwater walkthrough
10/15/2015
All
1-8
Visual evaluation during semiannual stormwater walkthrough
03/21/2016
All
1-8
Visual evaluation during semiannual stormwater walkthrough
10/19/2016
All
1-8
Visual evaluation during semiannual stormwater walkthrough
04/10/2017
All
1-8
Visual evaluation during semiannual stormwater walkthrough
10/19/2017
All
1-8
Visual evaluation during semiannual stormwater walkthrough
04/30/2018
All
1-8
Visual evaluation during semiannual stormwater walkthrough
12/28/2018
All
1-8
Visual evaluation during semiannual stormwater walkthrough
04/05/2019
All
1-8
Visual evaluation during semiannual stormwater walkthrough
11/05/2019
All
1-8
Visual evaluation during semiannual stormwater walkthrough
04/03/2020
All
1-8
Visual evaluation during semiannual stormwater walkthrough
12/23/2020
All
1-8
Visual evaluation during semiannual stormwater walkthrough
04/27/2021
All
1- 8
Visual evaluation during semiannual stormwater walkthrough
12/07/2021
All

NIEHS Stormwater Monitoring History
SAMPLING YEAR 1 PERIOD #1
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH Aluminum
units) (mg/L)
BOD
(mglL)
COD
(mg/L)
Oil 8 Grease
(mg/L)
Total Nitrogen
(mg/L)
Total Phosphorus
(mglL)
EPA Method 624 (VOC)
(mgtL)
EPA Method 625 (SVOC)
(mg/L)
02/28/2011
1st
1
108
0.62
8.40 3.610
3.2
45
ND
1.9
ND
ND
2
10 0.538
4.3
ND
0.105
D
3
104
7.40 0.393
2.4
29
ND
1.3
1 0.085
1 ND
Butylbenzylphthalate=2.2 ug/L
Stormwater Permit Benchmark Values 6.9 0.75 30 120 30 30
Notes: Sample Period #1, samples collected during severe thunderstorm, used RDU rainfall data
SAMP1 IN[7 YEAR 1 PFRIfNI $9
2 germane =6.7 Anthracene=.005
Toluene =.001 a Pentachlorophenol=.019
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mglL)
BOD
(mg/L)
COD
(mg/L)
Oil 8 Grease
(mg/L)
Total Nitrogen
(mg/L)
Total Phosphorus
(mg/L)
EPA Method 624 (VOC)
(mg/L)
EPA Method 625 (SVOC)
(mglL)
08127/2011
2nd
1
108
0.54
7.450
020
2
N
ND
0.7
0.110
ND
NO
3
105
0.
9
0.120
ND0
2
104
7.40
1 0,155
ND
19
ND
1.2
0.054
ND
ND
Stormwater Permit Benchmark Values 6-9 0.75 30 120 30 30
Notes: Sample Period #2, samples collected during Hurricane Irene, used RDU rainfall data
SAMPI ING YFAR 1 PFRIDD S2 /ROn RP_AAmnIPI
2 Benzene =6.7 Anthracene=.005
Toluene=.0018 Pentachlorophenol=.019
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mglL)
BOD
(mg/L)
COD
(mg/1-)
Oil 8 Grease
(mg/L)
Total Nitrogen
(mg/L)
Total Phosphorus
(mglL)
EPA Method 624 (VOC)
(mg/L)
EPA Method 625 (SVOC)
(mg/L)
09/06/2011
2nd
1
108
1.59
4.5
2
105
7.5
3
104
ND
Stormwater Permit Benchmark Values 6-9 0.75 30 120 30 30
Notes: Stormwater samples recollected for BOD since 0812712011 samples exceeded 46-hour hold time, used RDU rainfall data
SAMPLING YEAR 2 PERIOD #1
2 Benzene =6.7 Anthracene=.005
Toluene=.0018 Pentachlorophenol=.019
Date
Sampling
Period'
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mg/L)
BOD
(mg/L)
COD
(mg/L)
Oil & Grease
(M91L)
Total Nitrogen
(mg/L)
Total Phosphorus
(mg/L)
EPA Method 624 (VOC)
(mglL)
EPA Method 625 (SVOC)
(mg/L)
12/21/2011
1st
1 1
108
0.25
1 7.80
10.472
2.2
23
ND
1.1
0.057
ND
2,4-Dinilrophenol=6.0 ug/L
Bis(2ethy1hexyl)phtha1a1e = 1.9 ugh
2
105
0.25
7.80
0.210
2.6
55
ND
1.2
0.088
ND
ND
3
1 104
0.25
7.70
0,283
ND
28
ND
1.5
0.074
ND
ND

Stormwater Permit Benchmark Values
SAMPLING YEAR 2 PERIOD #2
NIEHS Stormwater Monitoring History
6-9 0.75 30 120 30 30
2 Benzene=6.7 Anthracene=.005
Toluene =.001 8 Pentachlorophenol=.019
Date
Sampling
Periotl
I Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mglL)
BOD
(mg/L)
COD
(mg/L)
Oil 8,Grease
(mg/L)
Total Nitrogen
(mg/L)
Total Phosphorus
(m9/L)
EPA Method 624 (VOC)
(mg/
EPA Method 625 (SVOC)
(mglL)
04/26/2012
2nd
1
108
0.13
7.60
0.643
1 5.0
38
1 ND
1.2
0.072
NO
ND
2
105
0.13
7.60
0.294
4.6
1 55
1 NO
1.1
0.110
ND
ND
3
104
1 0.13
7.90
0,241
2.7
1 23
1 ND
1.3
0.120
ND
ND
Stormwater Permit Benchmark Values 6-9 0.75 30 120 30 30
Notes. Sample Period #2, samples used nearby COCOPAHS rainfall data
SAMPLING YEAR 3 PERIOD #1
2 Benzene=6.7 Anthracene=.005
Toluene =.0018 Pentachlorophenol = .019
Date
Sampling Outfall
Period Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mg/L)
BOD COD
(mglL) (COD
011 & Grease
(mglL)
Total Nitrogen
(mglL)
Total Phosphorus
(mglL)
EPA Method 624 (VOC)
(mg/L)
EPA Method 625 (SVOC)
(mg/L)
02/07/2013
1st 1
108
0.87
6.90
0.894
11.0 56
ND
2.7
0.110
ND
ND
2
105
0.87
6.70
0.954
1 24.0 1 65
1 3.78
ji 3.3
0.220
ND
ND
3
104
0.87
6.90
0.316
1 3.0 1 28
1 ND
1 2.1
0.210
ND
ND
Stormwater Permit Benchmark Values
SAMPLING YEAR 3 PERIOD #2
6-9 0.75 30 120 30 30 2 Benzene=6.7 Anthracene = .005
Toluene =.001 8 Pentachlorophenol=.019
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mglL)
BOO
(mg/L)
COD
(mg/L)
Oil & Grease
(mg/L)
Total Nitrogen
(mglL)
Total Phosphorus
(mg/L)
EPA Method 624 (VOC)
(mglL)
EPA Method 625 (SVOC)
(mg/L)
O6/26/2013
2nd
1
108
1 0.27
7.00
0.277
6.1
35
ND
0.9
0.047
ND
NO
2
105
0.27
7.00
0.233
4.7
39
ND
2.1
0.150
ND
ND
3
1 104
0.27
7.00
1 0.143
1 2.5
37
ND
1.3
0.095
ND
Butylbenzylphmalale = 5.2 ug/L
Stormwater Permit Benchmark Values
SAMPLING YEAR 4 PERIOD #1
6-9 0.75 30 120 30 30 2 Benzene=6.7 Anthracene=.005
Toluene=.0018 Pentachlorophenol=.019
Date
Sampling
Period
I Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mglL)
BOO
(mg/L)
COD
(mg/L)
Oil 8 Grease
(mg/L)
Total Nitrogen
(mg/L)
Total Phosphorus
(mg/L)
EPA Method 624 (VOC) EPA Method 625 (SVOC)
(mg/L) (mg/L)
11/26/2013
1st
1
108
1.48
7.00
0.403
3.6
26
2.74
1.1
0.110
ND ND
2
105
1.48
1 7.00
0.218
19.0
47
ND
1.4
0.200
ND ND
3
104
1 1.48
1 7.00
0.154
3.2
20
NO
0.99
0,390
NO ND

Stormwater Permit Benchmark Values
CAMPI INf: WAR A PFRICNI !i9
NIEHS Stormwater Monitoring History
6-9 0.75 30 120 30 30
2 Benzene =6.7 Anthracene=.005
Toluene=.0018 Pentachlorophenol=.019
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mglL)
BOD
(m91L)
COD
(mglL)
Oil 8 Grease
(mg1L)
Total Nitrogen
(mg/L)
Total Phosphorus
(mglL)
EPA Method 624 (VOC)
(mg/L)
EPA Method 625 (SVOC)
(mg/L)
07/15/2014
2nd
1
108
3.52
8.90
0.262
ND
35
ND
1.5
0.090
ND
Bis(2-ethylhe�y0phlhalale=l.7u
2
105
3.52
6.70
0.301
12.0
40
ND
6
0.170
ND
&a(2alhylhexy0Phthalate =1.7u
3
104
3.52
6.90
0.789
5.4
25
ND
1.9
0.400
ND
ND
Stormwater Permit Benchmark Values
SAMPLING YEAR 5 PERIOD #1 (UPDATEDI
6.9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene = .005
Toluene = .0018 Pentachlorophenol=.019
Date
Sampling
Period
Outfall
Number
Location
Precipitation
Precipitation
Field pH (pH
units)
Aluminum
(mg/L)
BOD
(mg/L)
COD
(mglL)
Oil & Grease
(mg L)
Total Nitrogen
(mglL)
Total Phosphorus
(mglL)
EPA Method 624 (VOC)
(mg/L)
EPA Method 625 (SVOC)
(mg/L)
02/09/2015
tat
1
108
1 0.62
8.20
1.000
9.2
61
ND
4.1
0.070
ND
ND
2
105
0.62
7.80
0.679
8.6
54
ND
4.6
0.098
ND
ND
3
104
0.62
7.80
2.130
5.0
56
ND
16
0.200
ND
ND
Stormwater Permit Benchmark Values
U1 M 1jgik iewl11:2i»:7 W e71YA
6-9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene=.005
Toluene-.0018 Pentachlorophenol=.019
Data
Sampling
Pe
Outfallriod
Number
Location
Precipitation
(Inches)
Field pH (pH
units)
Aluminum
(mglL)
BOD
(mg/L)
COD
(mglL)
Oil & Grease
(mg/L)
Total Nitrogen
(mg/L)
Total Phosphorus
(mg/L)
EPA Method 624 (VOC)
(mg/L)
EPA Method 625 (SVOC)
(mglL)
07/1912615
2nd
1
108
0.29
7.90
0.501
11.0
34
ND
1.6
0.081
ND
ND
2
105
0.29
7.10
0.186
5.2
47
ND
3.5
0.140
ND
Diethylphthelate=3.0 ug/L
3
104
D.29
6.80
0.398
6.7
34
1 ND
1.4
0.073
ND
Butylbenzyiphthalate=3.2 ug/L
Stormwater Permit Benchmark Values
SAMPLING YEAR 6 PERIOD #9
6.9 0.75 30 120 30 30 2 Benzene, -6.7 Anthracene=.005
Toluene-.0018 Pentachlorophenol=.019
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mglL)
BOD
(mg/L)
COD
(mglL)
Oil 8 Grease
(mg/L)
Total Nitrogen
(mg&)
Total Phosphorus
(mg/L)
EPA Method 624 (VOC)
(mglL)
EPA Method 625 (SVOC)
(m91L)
12/17/2015
1st
1
108
8.0
N.D
ND
ND
0.8
2
D
2
105
11.05
40
0.67409
26
16
ND
1.1
0.086
Z
1 Di-n-0uMphihalate =3.2 pgIL
3
104
1.05
1 7.90
1.630
3.3
29
ND
1.9
0.210
ND
ND
Stormwater Permit Benchmark Values 6-9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene=.005
Toluene=.0018 Pentachlorophenol=.019

NIEHS Stormwater Monitoring History
SAMPLING YEAR 6 PERIOD #2
Data
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(ingil
BOO COO
(mg1L) (mg/L)
OII &Grease
(mglL)
Total Nitrogen
(mg/L)
Total Phosphorus
(mglL)
EPA Methotl 624 (VOC) EPA Method 625 (SVOC)
(mg/L) (mg1L)
07/30/2016
2nd
1
108
0.11
6.90
4.980
13.0 86
ND
2.2
0.460
ND ND
2
105
0.11
6.70
0.405
8.0 16
ND
2.4
0.120
ND Bulylbenzylphthalate=2.1 uglL
3
104
0.11
6.70
0.259
7.7 22
ND
2.6
0.043
1 ND IButylbenzylphthalale=9.2 pg1L
Stormwater Permit Benchmark Values
SAMPLING YEAR 7 PERIOD #1
6-9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene=.005
Toluene=.0018 Pentachlorophenol=.019
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mg/L)
BOD
(ml
COD
(mg/L)
Oil & Grease
(mg/L)
Total Nitrogen
(mglL)
Total Phosphorus
(mg/L)
EPA Method fi24 (VOC)
(mglL)
EPA Method 625 (SVOC)
(mill
12/18/2016
1st
1
108
0.36
7.47
0.730
3.7
47
ND
1.4
0.055
ND
ND
2
105
0.36
7.22
0.338
8.5
41
ND
1.8
0.075
ND
ND
3
104
0.36
7.29
0.334
3.3
28
ND
1.8
0.025
1 ND
ND
Stormwater Permit Benchmark Values
SAMPLING YEAR 7 PERIOD #1 (BOD Resamolel
6-9 0.75 30 120 30 30 2 Benzene=6.7 Anthracene=.005
Toluene =.001 0 Pentachlorophenol=.019
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(mill
BOO
(BOO
COD
(mg/L)
Oil & Grease
(rl
Total Nitrogen
(mg/L)
Total Phosphorus
(mg/L
EPA Method 624 (VOC)
(mg/L)
EPA Method 625 (SVOC)
(mg/L)
02/15/2017
1st
1
108
0.25
19.0
2
105
0.25
17.0
3
104
0.25
11.0
Stormwater Permit Benchmark Values 6-9 0.75 30 120 30 30
Notes: Stormwater samples recollected for BOO since 1211a12016 samples would have required analytical action on 1212512016 (Christmas Day)
SAMPLING YEAR 7 PERIOD #2
2 Benzene=6.7 Anthracene=.005
Toluene=.0018 Pemachlorophenol=.019
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(Inches)
Field pH (pH
units)
Aluminum
(mg/L)
BOD
(mg1L)
COD
(mg1L)
Oil & Grease
(mg/L)
Total Nitrogen
(mill
Total Phosphorus
(mg1L)
EPA Method 624 (VOC)
(mg/L)
EPA Method 625 (SVOC)
(mg1L)
O6I24I2017
2nd
1
108
1.20
7.43
2.230
6.6
49.4
ND
1.1
0.100
ND
ND
2
105
1.20
7.19
0.697
3.5
36.6
ND
1.6
0.360
ND
ND
3
104
1.20
6.87
2.310
6.0
38.7
2.44
1.2
0.410
ND
ND
Stormwater Permit Benchmark Values 6-9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene=.005
Toluene=.0018 Pentachlorophenol=.019

NIEHS Stormwater Monitoring History
CARAW Ild(S VFAP A PFPlrtn dti
Date
Sampling
Period
Outfall
Number
Location
Precipitation
(inches)
Field pH (pH
units)
Aluminum
(m91L)
BOD
(mgIL)
COD
(mgIL)
Oil 8 Grease
(mg/L)
Total Nitrogen
(mg/L)
Total Phosphorus
(mgIL)
EPA Method 624 (VOC)
(mgIL)
EPA Method 625 (SVOC)
(mgIL)
01/28/2018
1st
1
108
1.33
8.22
1.760
3.8
23
ND
5.3
0.130
ND
ND
2
105
I.33
7.46
0.869
ND
25
ND
3.8
0.150
ND
ND
3
1 104
1.33
7.40
0.531
4.1
1 ND
ND
1.8
0.066
ND
ND
Stormwater Permit Benchmark Values
RAMPI ING YEAR 8 PERIOD 02
6.9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene = .005
Toluene =.001 8 Pentachlorophenol=.019
Sampling
Outfall
Precipitation
Fieltl pM (pH
Aluminum
BOD COD
Oil 8 Grease
Total Nitrogen
Total Phosphorus
EPA Method 624 (VOC)
EPA Method 625 (SVOC)
Date
Period
Number
Location
(inches)
units)
(mgIL)
(mg/L) (mgIL)
(mgIL)
(mg/L)
(mgIL)
(mgIL)
(mgIL)
06I26I2018
L6��
2nd
1
108
1.12
7.81
0.304
7.1 25
ND
3.1
0.110
ND
ND
2
1 105
1.12
1 6.98
1 0.184
3.8 29
1 ND
8
0.130
ND
ND
Stormwater Permit Benchmark Values
Received approval from NCOEMLR inspector to end Outfall 3 sampling
RAMPI IN(A YFAR Q PFRIOn $1
6.9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene = .005
Toluene=.0018 Pentachlorophenal=.019
Sampling
Outfall
Precipitation
Field pH (pH
Aluminum
BOD
COD
Oil & Grease
Total Nitrogen
Total Phosphorus
EPA Method 624 (VOC)
EPA Method 625 (SVOC)
Date
Period
Number
Location
(inches)
units)
(mgIL)
(mgIL)
(mgIL)
(mgIL)
(mgIL)
(mg/L)
(mg/L)
(mgIL)
12I20I2018
1st
1
1 108
1 0.56
8.92
0.711
44.0
96
ND
0.93
0.091
1 NO
ND
2
1 105
1 0.56
7.95
0.430
3.6
38
ND
0.90
0.130
1 ND
ND
Stormwater Permit Benchmark Values
SAMPLING YEAR 9 PERIOD #2
6.9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene=.005
Toluene =.0018 Pentachlorophenol =.01 9
Sampling
Outfall
Precipitation
Field pH (pH
Aluminum
BOO COD
Oil & Grease
Total Nitrogen
Total Phosphorus
EPA Method 624 (VOC)
EPA Method 625 (SVOC)
Date
Period
Number
Location
(inches)
units)
(mg IL)
(mgIL) (mgIL)
(mg/L)
(mg/L)
(mg/L)
(mgIL)
(mgIL)
04/02/2019
2nd
1 1
1 108
1 0.37
6.62
1 0.871
140.0 360
ND
4.10
0.790
ND
ND
2
1 105
1 0.37
6.97
1 0.416
100.0 200
ND
5.40
0.610
ND
ND
Stormwater Permit Benchmark Values
6-9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene = .005
Toluene=.0018 Pentachlorophenol=.019
SAMPLING YEAR 10 PERIOD #1
Sampling Outfall Precipitation Field pH (pH Aluminum BOD COD Oil & Grease Total Nitrogen Total Phosphorus EPA Method 624 (VOC) EPA Method 625 (SVOC)
Data Period Number Location (inches) units) (mgIL) (mgIL) (mgIL) (mg/L) (mgIL) (mgIL) (mgIL) (mg/L)

NIEHS Stormwater Monitoring History
12/17/2019
1 1st
1 1
1 108
1 0.26
8.68
1 0.480
1 3.1
75
1 ND
1 2.00
0.190
1 ND
ND
2
105
0.26
8.12
0.626
3.2
44
ND
170.00
2.300
ND
ND
Stormwater Permit Benchmark Values
SAMPLING YEAR 10 PERIOD 92
6-9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene = .005
Toluene=.0018 Pentachlorophenol=.019
Date Sampling Outfall
Location Precipitation Field pH (pH
Aluminum
BOO
COD Oil & Grease
Total Nitrogen
Total Phosphorus
EPA Method 624 (VOC)
EPA Method 625 (SVOC)
Period Number
(inches) units)
(mg/L)
(mg/L)
(mg/L) (mg/L)
(mglL)
(mg/L)
(mg/L)
05/27/2020 2nd 1
108 0.89 8.49
0.223
2.6
11 ND
0.81
ND
ND
ND
2
105 0.89 7.61
0.121
2.0
22 ND
2.30
ND
NO
ND
Stormwater Permit Benchmark Values
SAMPLING YEAR 11 PERIOD #1
6-9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene = .005
Toluene=.0018 Pentachlorophenol=.019
Date
Sampling
Outfall
Location
Precipitation
Field pH (pH
Aluminum
BOD
COD
Oil & Grease Total Nitrogen
Total Phosphorus
EPA Method 624 (VOC) EPA Method 625 (SVOC)
Period
Number
(inches)
units)
(mg/L)
(mg/L)
(mgIQ
(mg/L) (mg/L)
(mglL)
(mg/L) (mg/L)
01/08/2021
1st
1 1
1 108
0.32
8.11
0.248
2.5
18
ND 0.61
ND
ND ND
2
1 105
0.32
8.28
0.265
NO
20
4.84 0.87
ND
NO ND
Stormwater Permit Benchmark Values
SAMPLING YEAR 11 PERIOD #2
6-9 0.75 30 120 30 30 2 Benzene =6.7 Anthacene=.005
Toluene=.0018 Pentachloraphanol=.019
Date
Sampling
Outfall
Location
Precipitation
Field pH (pH
Aluminum
BOO
COD
Oil 8 Grease
Total Nitrogen Total Phosphorus
EPA Method 624 (VOC) EPA Method 625 (SVOC)
Period
Number
(inches)
units)
(mg/L)
(mg/L)
(mg/L)
(mGre
(mg/L) (mg1L)
(mg/ L) (mg/L)
06/02/2021
2nd
1
1 108
1 2.30
1 7.03
1 0.084
1 2.4
22
ND
0.78 ND
ND ND
2
1 105
1 2.30
1 6.95
1 0.129
1 4.0
28
1.58
1 1.10 1 0.280
NO ND
Stormwater Permit Benchmark Values
SAMPLING YEAR 12 PERIOD #1
6.9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene=.005
Toluene=.0018 Pentachlorophenol=.019
Date
Sampling
Outfall
Location
Precipitation
Field pH (pH
Aluminum
BOD
COD
Oil & Grease
Total Nitrogen
Total Phosphorus
EPA Method 624 (VOC)
EPA Method 625 (SVOC)
Period
Number
(inches)
units)
(mg/L)
(mail
(mg/L)
(mg/L)
(mg/L)
(mg/L)
(mg/L)
(mglL)
01I20/2022
1st
1
108
0.33
1 6.95
0.185
3.9
23
ND
0.75
0.110
1 ND
ND
2
105
0.33
1 6.40
0.104
2.2
17
NO
0.65
0.057
1 NO
ND
Stormwater Permit Benchmark Values
6.9 0.75 30 120 30 30 2 Benzene =6.7 Anthracene=.005
Toluene =.0018 Pentachlorophenol=.019

NIEHS Stormwater Visual Monitoring Summary
Year 1 I Period I
Date Rainfall Outfall Building Color Odor Clarity Floatina Solids Suspended Solids Foam Oil Sheen Erosion/Deposition Other Indicators
02/28/2011
0.62
A -Dock
101
Light Brown
None
2
2
3
No
No
Yes
South Lot
101
Light Brown
None
2
1
1
No
No
Yes
North Lot
101
Light Tan/Clay
None
2
2
2
No
No
Yes
F-Module
101
Light Tan
None
2
1
1
No
No
No
103
103
Light Brown
None
3
2
2
No
No
No
104
104
Light Brown
None
2
1
2
No
No
No
105
108
Light Brown
None
2
2
1
No
No
No
108
108
Light Brown
None
2
2
2
No
No
No
Year 1 I Period 2
Data Rainfall Outfall Building Color Odor Claritv Floatina Solids Suspended Solids Foam Oil Sheen Erosion/Deposition Other Indicators
08/27/2011
0.54
A -Dock
101
Light Brown
None
2
2
1
No
No
Yes
South Lot
101
Light Brown
None
2
1
2
No
No
No
North Lot
101
Very Light Brown
None
1
1
2
No
No
No
F-Module
101
Light Brown
None
2
1
1
No
No
No
103
103
Light Brown
None
2
4
3
Yes
No
Yes
Contained leaf litter/grass clippings
104
104
Clear
None
1
1
1
No
No
No
105
108
Light Clay
None
2
1
2
No
No
No
108
108
Light Brown
None
2
1
1
No
No
No
Tier 2 Visual
Date Rainfall Outfall Building Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen ErosionlDeposition Other Indicators
11/04/20111 1.43 108 108 Light Gray None 2 1 2 No No No
Year 2/ Period 1
Date Rainfall Outfail Buildina Color Odor Claritv Floatina Solids Suspended Solids Foam Oil Sheen Erosion/Danosition Other Indicators
12/21/2011
0.25
A -Dock
101
Light Brown
None
2
1
2
No
No
No
South Lot
101
Very Light Brown
None
2
1
1
No
No
No
North Lot
101
Light Brown
None
2
2
2
No
Yes
Yes
Minor sheen / sediment deposition
F-Module
101
Light Brown
None
3
2
.2
No
No
No
103
103
Very Light Brown
None
1
1
1
No
No
No
104
104
Very Light Brown
None
1
1
1
No
No
No
105
108
Light Brown
None
2
1
2
No
No
No
108
108
Light Brown
None
1
2
2
No
No
No

Tier 2 Visual
Date
Rainfall
Outfall
Building
Color
Odor
Clarity
Floating Solids Suspended Solids
Foam
Oil Sheen
EroslonlDeposition Other Indicators
101/27/20121
0.22 1
108
108
Light Clay
None
2
2
2
No
No
No
Tier 2 Visual
Date
Rainfall
Outfall
Building
Color
Odor
Clarity
Floating Solids Suspended Solids
Foam
Oil Sheen
Erosion/Deposition Other Indicators
02/16/2012
0.25 1
108
108
Light Clay
None
3
2
2
No
No
No
Tier 2 Visual
Date
Rainfall
Outfall
Building
Color
Odor
Clarity
Floating Solids Suspended Solids
Foam
Oil Sheen
Erosion/Deposition Other Indicators
04/04/2012
1 0.62
108
108
Light Clay
None
2
1 2
No
No
No
Year 21 Period
2
Date
Rainfall
Outfall
Bulldino
Color
Ader
Clarity
FlnswOnn Celina ciiav%ft rinri s.,iw-
e.,ft..,
nu ea...,..
n.L__
04/26/2012
0.13
A -Dock
101
Light Clay
None
1
1
1
No
No
No
South Lot
101
Light Clay
None
1
1
1
No
No
No
North Lot
101
Medium Clay
None
3
1
1
No
No
No
F-Module
101
Medium Clay
None
3
1
1
No
No
No
103
103
Light Clay
None
2
1
1
No
No
No
104
104
Clear
None
1
1
1
No
No
No
105
108
Light Clay
None
3
1
2
Yes
No
No
Foam caused by splashing
108
108
Light Clay
None
2
2
2
No
No
No
Tier 2 Visual
Date
Rainfall
Outfall
Building
Color
Odor
Clarity
Floating Solids Suspended Solids
Foam
Oil Sheen
Erosion/Deposition Other Indicators
05/09/2012
0.47
108
1 108
Light Gray
None
2
2
3
No
No
No
Tier 2 Visual
Date
Rainfall
Outfall
Building
Color
Odor
Clarity
Floating Solids Suspended Solids
Foam
Oil Sheen
Erosion/Deposition Other Indicators
06/11/2012
1.06
108
108
Light Brown
t - None
1 2
1 1
2
No
No
No
Tier 2 Visual
Date
Rainfall
Outfall
Building
Color
Odor
Clarity
Floating Solids Suspended Solids
Foam
Oil Sheen
ErosionlDeposltlon Other Indicators
07/20/2012
0.14
108
108A
Light Brown
None
2
1 1 1
1 1
No
No
No

Tier 2 Visual
Date Rainfall Outfall Building Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen Erosion/Deposition Other Indicators
09/06/2012 1 0.55 108 108 Dark Brown None 2 1 1 1 3 1 No No I No
Tier 2 Visual
Date
Rainfall
Outfall
Building
Color
Odor
Clarity
Floating Solids Suspended Solids
Foam
Oil Sheen
Erosion/Deposition Other Indicators
111/13/20121
0.12 1
108
1 108 1
Very Light Gray
None
2
1
2
No
No
No
Tier 2 Visual
Date
Rainfall
Outfall
Building
Color
Odor
Clarity
Floating Solids Suspended Solids
Foam
Oil Sheen
ErosionlDeposition Other Indicators
12/12/2012
1 0.42
108
108
Light Clay
None
1
2
2
No
No
No
Tier 2 Visual
Date
Rainfall
Outfall
Building
Color
Odor
Clarity
Floating Solids Suspended Solids
Foam
Oil Sheen
Erosion/Deposition Other Indicators
12/20/2012
1 0.35
108
108
Light Clay
None
1
2
1 1
No
No
No
Year 3/ Period 1
nata Rainfall Outfall Buildinn Color Odor Claritv Floatina Solids Suspended Solids Foam Oil Sheen Erosion/Decosition Other Indicators
02/07/2013
0.87
A -Dock
101
Clear
None
1
1
1
No
No
No
South Lot
101
Clear
None
1
1
1
No
No
No
North Lot
101
Clear
None
1
1
1
No
No
No
F-Module
101
Clear
None
1
1
1
No
No
No
103
103
Clear
None
1
1
1
No
No
No
104
104
Clear
None
1
1
1
No
No
No
105
108
Light Clay
None
2
1
1
No
No
No
108
108
Light Clay
None
2
1
1
No
No
No
Year 3 / Period 2
nata Rainfall Outfall Ruildino Color Odor Claritv Floatina Solids Suspended Solids Foam Oil Sheen Erosion/Decosition Other Indicators
06/26/2013
0.27
A -Dock
101
Very Light Clay
None
1
1
1
No
No
No
South Lot
101
Light Clay
None
2
1
1
No
No
No
North Lot
101
Light Clay
None
2
1
1
No
No
No
F-Module
101
Light Clay
None
2
1
1
No
No
No
103
103
Very Light Clay
None
2
1
1
No
No
No
104
104
Clear
None
1
2
1
No
No
No
105
108
Clear
None
2
2
1
No
No
No
108
108
Clear
None
2
2
1
No
No
No
Year 4 1 Period 1

Date Rainfall Outfall Buildina Color Oder Clarity Finatinn Snlide gmienanriari Qnlirla Rovam nil Cifnnn %.rncinM/iisnwci.iwn ^61 - 1-11 w.w
11/26/2013
1.48
A -Dock
101
Light Gray
None
1
1
2
No
No
No
South Lot
101
Light Brown
None
2
1
2
No
No
No
North Lot
101
Light Brown
None
1
1
3
No
No
No
F-Module
101
Light Gray
None
2
2
2
No
No
No
103
103
Clear
None
1
4
4
No
No
No
Leaf Litter
104
104
Clear
None
1
1
2
No
No
No
105
108
Light Brown
None
2
1
1
No
No
No
108
108
Light Brown
None
2
2
2
No
No
No
Year 4/ Period 2
Date Rainfall Outfall Building Color Odnr Clarity Finatinn Cnliric nil Chnnn w-iaww A61...- L..Ii....aw...
07/15/2014
3.52
A -Dock
101
Light Brown
None
2
2
1
No
No
No.
South Lot
101
Light Brown
None
2
1
1
No
No
No
North Lot
101
Light Orange
None
3
1
2
No
No
No
F-Module
101
Light Orange
None
2
1
1
No
No
No
103
103
Flooded/Overgrown - No Access
104
104
Very Light Brown
None
2
1
1
No
No
No
105
108
Very Light Brown
None
2
1
1
No
No
No
108
108
Light Brown
None
2
1
1
No
No
No
Year 51 Period 1
Date Rainfall Outfall Buildina Color Odor Clarity Finatinn snlirla Aiienanriari Snlirie Fnam nil Chaan R�ncinn/llnnnaiann n.hs. 1...1iwsMw.
02/09/2015
0.62
A -Dock
101
Light Brown
None
2
1
2
No
No
No.
South Lot
101
Light Gray
None
1
1
1
No
No
No
North Lot
101
Light Orange
None
2
1
2
No
No
Yes
F-Module
101
Light Orange
None
3
1
2
No
No
No
103
103
Light Gray
None
2
1
2
No
No
No
104
104
Light Brown
None
2
2
1
No
No
No
105
108
Light Brown
None
2
1
1
No
No
No
108
108
Light Brown
None
2
2
2
Yes
No
No
Tier 2 Visual
Date Rainfall Outfall Building Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen Erosion/Deposition Other Indicators
04/30/2015 1 0.98 104 104 Brown None 3 1 2 1 3 1 No No I No
Tier 2 Visual
Date Rainfall Outfali Building Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen Erosion/Deposition Other Indicators

105/19/20151 0.22 1 104 1 104 1 Light Orange I None 1 2 1 1 1 1 No I No I No
Tier 2 Visual
Date Rainfall Outfall Building Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen Erosion/Deposition Other Indicators
06/01/2015 1 0.15 104 104 Light Orange None 1 1 1 1 1 1 No I No I No
Year 5/ Period 2
nata Rainfall nutfau Buildina Color
Odor Claritv Floatina Solids Susnended Solids Foam Oil Sheen Erosion/Deaosition Other Indicators
07/19/2015
0.29
A -Dock
101
Light Gray
None
2
2
2
No
No
No
South Lot
101
Light Orange
None
2
2
2
No
No
No
North Lot
101
Light Orange
None
2
1
1
No
No
Yes
F-Module
101
Light Orange
None
2
1
1
No
No
No
103
103
Light Gray
None
2
1
2
No
No
No
104
104
Clear
None
1
1
1
No
No
No
105
108
Light Orange
None
2
1
2
No
No
No
108
108
Light Orange
None
2
1
2
No
No
No
Year 61 Period 1
nata Rainfall Outfall Ruildinn Color Odor Clarity Floatina Solids Susnended Solids Foam Oil Sheen Erosion/DeDosition Other Indicators
12/17/2015
1.05
A -Dock
101
Light Orange
None
2
1
2
No
No
No
South Lot
101
Light Orange
None
2
1
2
No
No
No
North Lot
101
Light Orange
None
3
1
3
No
No
No
F-Module
101
Light Orange
None
2
1
2
No
No
No
103
103
Light Orange
None
3
1
2
No
No
No
104
104
Light Orange
None
2
1
2
No
No
No
105
108
Light Brown
None
2
1
2
No
No
No
108
108
Light Brown
None
1
1
2
No
No
No
Year 61 Period 2
na#n Rainfall Autfall Rutidinn Color Odor Claritv Floatina Solids Susnended Solids Foam Oil Sheen Erosion/Denosition Other Indicators
07/30/2016
0.11
A -Dock
101
Clear
None
1
1
1
No
No
No
South Lot
101
Light Orange
None
2
1
2
No
No
No
North Lot
101
Light Brown
None
2
1
1
No
No
No
F-Module
101
Light Brown
None
2
1
1
No
No
No
103
103
Clear
None
1
1
1
No
No
No
104
104
Clear
None
1
1
1
No
No
No
105
108
Light Orange
None
2
2
2
No
No
No
108
108
Light Orange
None
2
2
2
No
No
No

Year 71 Period 1
Date Rainfall Outfall Buildina Cnlnr ntinr e4ari4v Clna+inn Q^11A� :__n,__a___
12/18/2016
0.36
A -Dock
101
Clear
None
1
1
1
No
No
No
South Lot
101
Light Orange
None
2
2
2
No
No
No
North Lot
101
Light Orange
None
2
2
2
No
No
No
F-Module
101
Clear
None
1
1
1
No
No
No
103
103
Clear
None
1
2
2
No
No
No
104
104
Clear
None
1
1
1
No
No
No
105
108
Light Orange
None
2
2
1
No
No
No
108
108
Light Orange
None
2
1
1
No
No
No
Year 71 Period 2
Date Rainfall Outfall Buildina Calar ndnr Clarity F1na+1nn Cn11rlc C_....s.._n1---- sas__ 0% L.
06/24/2017
1.20
A -Dock
101
Very Light Orange
None
2
1
1
No
No
No
South Lot
101
Light Orange
None
2
1
2
No
No
No
North Lot
101
Light Orange
None
2
1
1
No
No
No
F-Module
101
Orange
None
3
1
2
No
No
No
103
103
Flooded
104
104
Light Orange
None
2
1
1
No
No
No
105
108
Light Orange
None
2
1
1
No
No
No
108
108
Light Brown
None
2
1
2
No
No
No
Year a 1 Period 1
Date Rainfall Outfall Buildina Cnlnr neinr r_larifu Clnatinre C..- --A-A a —HA_ V__... Ail Qs.___ C___f__lf1____:a:__ naL__._1e__a___
01 /28/2018
1.33
A -Dock
101
Clear
None
1
1
1
No
No
No
South Lot
101
Light Orange
None
2
1
1
No
No
No
North Lot
101
Light Orange
None
2
1
1
No
No
-No
F-Module
101
Light Orange
None
2
1
2
No
No
No
103
103
Light Orange
None
2
1
1
Yes
No
No
Some bubbles / foam
104
104
Light Orange
None
2
1
1
No
No
No
105
108
Light Orange
None
2
1
1
No
No
No
108
108
Light Brown
None
2
1
1
No
No
No
Special Aluminum Study
Date . Rainfall Outf°ati Building Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen Erosion/Deposition Other Indicators
05/21/20181 2.75 1 108 108 Light Orange None 2 1 1 1 2 1 No No I No

105
108
Light Orange
None
3
1
2
No
No
No
Light Orange
None
1
1
1
No
No
No
108 Downstream
Medium Orange
None
3
1
3
No
No
No
105 Downstream
Light Orange
None
2
1 1
1 2
1 No
No
No
Combined stream
Year 81 Period 2
Data Rainfall Outfall Building Color Odor Claritv Floatina Solids Suspended Solids Foam Oil Sheen Erosion/Deoosition Other Indicators
06/26/2018
1.12
A -Dock
101
Light Gray
None
2
1
3
No
No
No
South Lot
101
Light Orange
None
2
2
1
No
No
No
Leaf debris
North Lot
101
Light Orange
None
2
2
1
No
No
No
F-Module
101
Clear
None
1
1
2
No
No
No
103
103
Light Orange
None
2
1
2
No
No
No
104
104
Light Orange
None
2
1
1
No
No
No
105
108
Clear
None
1
1
1
No
No
No
108
108
Light Orange
None
2
1 1
1 1
No
No
No
Year 91 Period 1
Data Rainfall Outfall Building Color Odor Clarity Floatina Solids Suspended Solids Foam Oil Sheen ErosionlDeposition Other Indicators
12/20/2018
0.56
A -Dock
101
Clear
None
1
1
1
No
No
No
South Lot
101
Light Gray
None
2
1
1
No
No
No
North Lot
101
Light Clay
None
2
1
2
No
No
No
F-Module
101
Light Clay
None
2
2
1
No
No
No
103
103
Light Clay
None
2
1
1
No
No
No
104
104
Clear
None
1
1
1
No
No
No
105
108
Light Clay
None
1
1
1
No
No
No
108
108
Light Gray
None
1
1
2
No
No
No
Year 91 Period 2
Data Rainfall Outfall Building Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen ErosionlDeposition Other Indicators
04/02/2019
0.37
A -Dock
101
Light Brown
None
2
1
1
No
No
No
South Lot
101
Light Yellow -Green
None
3
2
3
No
No
No
Pollen
North Lot
101
Light Yellow
None
2
1
1
No
No
No
Pollen
F-Module
101
Light Yellow -Green
None
3
3
3
No
No
No
Pollen
103
103
Light Yellow
None
2
1
1
No
No
No
Pollen
104
104
Light Yellow
None
2
1
1
No
No
No
Pollen
105
108
Light Yellow -Green
None
3
2
3
No
No
No
Pollen
108
1 108
Light Yellow -Green
None
1 3
1 3
1 3
1 No
No
No
Pollen

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North Lot
101
Light Orange
None
3
1
1
No
No
No
F-Module
101
Orange
None
4
1
3
No
No
No
103
103
Clear
None
1
1
1
No
No
No
104'
104
Clear
None
1
1
1
No
No
No
105
108
Clear
None
1
1
1
No
No
No
108
108
Clear
None
1
1
1
No
No
No
Heavy rain breached sediment
Year 121 Period 1
Date Rainfall Outfall Buildina Color Odor Clarity Floatino Solids Susnandad Sothic i=nam nil Shoran Frencinn/Menna;finn Mlker I...ii—a....�
01/20/2022
0.33
A -Dock
101
Clear
None
1
1
2
No
No
No
South Lot
101
Clear
None
1
1
1
No
No
No
North Lot
101
Light Orange
None
2
1
2
No
No
No
F-Module
101
Gray
None
3
1
3
No
No
No
103
103
Light Orange
None
2
1
1
Yes
No
No
Foam in downstream rocks
104
104
Clear
None
1
1
1
Yes
No
No
Foam in downstream rocks
105
108
Light Orange
None
1
1
1
No
No
No
108
1 108
1 Light Orange
None
1 2
1 1 1
1 1
Yes
No
No 1
Foam in downstream rocks

Tier One Reporting (Outfall #1)
Sample Data Location
Parameter
Result
Benchmark
Inspection Date Inspector
Tier One Response
2/28/2011 Building 108 Outfall
Aluminum
I 3.61 mg/L
1 0.75 mgfL
1 3/19/2011 1 Steinmetz
Possible Cause: Excess sod in the stormwaler conveyance system
Selected Action: Developed sample plan to determine aluminum source
Collected stonnwater and sod samples on 06/29/2011
Results from 06/29/2011 samples Indicate that local soil contains high levels of aluminum
Results also indicate that aluminum is leaching from sod Into stwmmter
Preventative Measures: Removed excess soil along curbing upstream from Bldg 108 ouaall
Tier Two Reporting (Outfall #1)
Sample Date I Location ) Parameter I Result I Benchmark I inspection Date I Inspector I Tier Two Response
Evaluate BMPs including stormwater drain inserts
January sample less than benchmark
February sample above benchmark / Nodded NCDWO RRO - Requested oulfall evaluation
NCDWO (Natalie Land") site visit to review BMg 108 oulfall - 03/22/2012
benchmark
endscape project officer to discuss staging area grour
mole above benchmark
I sample less than benchmark
mple lass than benchmark
sample less than benchmark
after three consecutive samples less than benchmark
Tier Two Monthly Sampling (Outfall #1)

Sample Date
Location
Parameter
Result (mglL)
mrk
Ba�m9/)a
Inspection Date
Inspector
Tier Two Response
11/4/2011
Building 108 Outfall
Aluminum
1.600
0.75
Steinmetz
November Monthly Sample
Building 108 Sluloeway
Aluminum
2.210
0.75
Steinmetz
Tier Two Response
Budding 108 Parking Lot
Aluminum
0.210
0.75
Steinmetz
Tier Two Response
12/21/2011
Building tog ouead
Aluminum
0.472
0.75
Steinmetz
December Monthly Sample (collected as semiannual)
01/27/2012
Building 108 Outfall
Aluminum
0.690
0.75
Steinmetz
January Monthly Sample
02/16/2012
Building 108 Outell
Aluminum
1 0.795
0.75
Steinmetz
February Monthly Sample
04/04/2012
Building 108 Oudall
Aluminum
0.580
0.75
Steinmetz
March Monthly Sample (collected In April)
04/26/2012
Budding 108 OuHall
Aluminum
0.643
0.75
Steinmetz
April Monthly Sample (collected with semkanual samples)
05/09/2012
Budding 108 Outfall
Aluminum
2.070
0.75
Steinmetz
May Monthly Sample
06/11/2012
Budding 108 Oulfan
Aluminum
1.030
0.75
Steinmetz
June Monthly Sample (Storm drain filter installed)
07/20/2012
Bustling 108 Curtail
Aluminum
1.580
0.75
Steinmetz
July Monthly Sample (Storm drain filler Installed)
09/06/2012
Budding toe outran
Aluminum
1.520
0.75
Steinmetz
August Monthly Sample (collected In September) (Filter removed)
11/13/2012
Bustling 108 Outfall
Aluminum
0.255
0.75
Steinmetz
September Monthly Sample (Collected In November)
12/12/2012
Budding 10801dfall
Aluminum
0.102
0.75
Steinmetz
October Monthly SampIs(Collected in December)
12/20/2012
Buddirg 108 Outfall
lAluminum
0.198
0.75
ISteirmetz
INovember
Monthly Sample (Collected In December)
Tier One Reporting (Outfall #7)
Sample Date
Location TParameter Result
Benchmark Inspection Date Inspector
Tier One Response
2/7/2013
Building 108 Oulfall I Aluminum 0.894 mo/L
0.75 mg/L 3/1/2013 Steinmetz
Possible Cause: Excess sand in the stormwater conveyance system from treating icy roads
Selected Action: Collected sod 8 sand samples on 00/29/2011
Results from 06/29/2011 samples indicate that sand used to Treat lay roads contains aluminum
Preventative Measures: Assure that sand is only applied to roads when needed to treat actual Icy conditions.
Also, remove roadside sediment buildup along the Power Alley curb as needed.
Tier One Reporting (Outfall #2)
Sample Date
Location TParameter
Result
Benchmark Inspection Date
Inspector
Tier One Response
2/7/2013
Building 105 Outfall I Aluminum
0.954 mg/L
0.75 mg/L 3/1/2013
Steinmetz
Possible Cause: Residual send in the Budding 102 contractor parking lot from beating icy roads
Selected Action: Collected sod & sand samples on 08r29/2011
Results from 08/29/2011 samples indicate that sand used to treat icy roads contains aluminum
Preventative Measures: Assure that sand Is only applied to roads when needed to treat actual icy conddiore
Tier One Reporting (Outfall #3)
C a.....1.. Mb. I ...�u.... p7nlei Dneulf Inen +1— nh,- 1 Ina —+-
1 Tine lion Dnsnnnen

7/15/2014 1 Building 104 Outfall I Aluminum 1 0.789 mg/L 0.75 mg/L 1 8/8/2014 1 Steinmetz Possible Cause: Soil erosion from very heavy rainfall event (3.52")
Selected Acton: Collected sol & sand samples on 06/29/2011
Results from 06/29/2011 samples indicate that area sails contain aluminum
Preventative Measures: Verified that sediment is not building up in the stormwater con eyance system
upstream from the sampling point. Aluminum levels above the benchmark at this outfall are considered to be an
Tier One Reporting (Outfall #1)
Sample Date
Location
Parameter
Result Benchmark
Inspection Date
Inspector
Tier One Response
2/9/2015
Building 108 Outfall
Aluminum
1.000 mg/L 0.75 mg/L
3/6/2015
Steinmetz
Possible Cause: Excess sand in the stomnwater conveyance system from treating Icy roads
Selected Action: Collected soil & sand samples on 06/29/2011
Results from 06/29/2011 samples indicate that sand used to treat Icy roads contains aluminum
Preventative Measures: Assure that sand is only applied to roads when needed to treat actual Icy conditions.
Also, remove roadside sediment buildup along the Power Alley curb as needed.
Tier Two Reporting (Outfall #3)
Sample Date Location Parameter Result Benchmark Inspection Date Inspector Tier Two Response
2/9/2015 1 Building 104 Outfall Aluminum 2.13 mg/L 0.75 mgf- 3/6/2015 Steinmetz Possible Cause: Pxmess sand in the slormwater conveyance system from treating Icy roads
Selected Acllon: Begin monthlysamples for aluminum in April 2015
Consider study of dovmstream aluminum levels
April sample above benchmark
05/18/2015 - Reinspected curbside and mad surfaces upstream from dhe Building 104 outlall. Very little sand
and sediment remains upstream of this oudall. Street cleaning is rat required at this time.
May sample below benchmark
June sample below benchmark
July sample below benchmark
07119=15 - MonOJy sampling ends after dyes consecutive samples less than benchmark
Tier Two Monthly Sampling (Outfall #3)
Sample Date
Location Parameter
Result (mg/L)
Benchmark
Inspection Date
Inspector Tier Two Response
4/30/2015
Al
Building 104 Outfall uminum
5.090
0.75
Steinmeti April Monthly Sample
5/19/2015
Building 104 Outfall Al UminUm
0.496
0.75
Steinmetz I May Monthly Sample

6/1/2015
IBulding 104 oetrall
Aluminum
0.670
0.75 Steinmetz
iJune Monthly Sample
7/19/2015
1BUlding 104 Oufrall
I Aluminum
0.398
0.75 Steinmetz
JJUIY Monthly Sample (Mordhly monitoring no longer required)
Tier One Reporting (Outfail #3)
Sample Date Location Parameter Result Benchmark Inspection Date Inspector
(mg/L) P p Tier One Response
(mg L)
12/17/20151 Building 104 Outfall I Aluminum 1.63 0.75 01/07/2016 1 Steinmetz Possible Cause: Soil erosion from heavy rainfall event(1.05')
Selected Action: Collected soil & sand samples on 06/29/2011
Results from 06/29/2011 samples Indicate that area soils contain aluminum
Preventative Measures: Vended that sediment is not building up in the stom ,ater conveyance system
upstream from the sampling point. Aluminum levels above the benchmark at this outfall are considered to be an
isolated event
Tier One Reporting (Outfall #1)
Sample Date Location Parameter Result Benchmark Inspection Date Inspector Tier One Response
7/30/2016 Building 108 Outfall Aluminum 4.93 mg/L 0.75 mg/L 1 8/31/2016 Steinmetz Possible Cause: Sol erosion from previous heavy rain events?
Selected Action: Collected soil & sand samples on 06/29/2011
Results from 06/29/2011 samples indicate that area soils contain aluminum
Preventative Measures: Continue visually monitoring roadside for buildup of soil and sand. Request removal if
warranted.
Tier One Reporting (Outfall #1)
Sample Date Location Parameter Result Benchmark Inspection Date Inspector Tier One Response
6/24/2017 Building 108 Outfall I Aluminum 1 2.23 mg/L 0.75 mg/L 7/13/2017 1 Steinmetz Possible Cause: Sol erosion from heavy min event
Selected Action: Collected sol & sad samples on OW912011
Results from 06/29/2011 samples indicate that area soils contain aluminum
Preventative Measures: Continue visually monaoring roadside for buildup of soil and sand. Submitted work
order request to remove sand/soil buildup upstream from Outfall #1.
Tier One Reporting (Outfall #3)
Sample Date Location
Parameter Result (mg/L) Benchmark Inspection Date Inspector
Tier One Response
6/24/2017 Building 104 Outfall
Aluminum 2.31 0.75 07/13/2017 Steinmetz
Possible Cause: Sol erosion from heavy rainfall event / possUe source is C & O dumpster stationed in
Building 104 loading dock area for renovation project.

Selected Aetton: Cdladed sod & Sand samples on 06/29/2011 1
Results from OS/29/2011 samoles indicate that area soils contain aluminum
ive Measures: Verified that sediment is not budding up in the stcnnwaler conveyance system
from the Sampling point. Aluminum levels above the benchmark at this outfall are considered to be an
rem. C & D dumpster should be removed from site after renovation project completion.
Tier One Reporting (Outfall #2)
Sample Date Location Parameter Result (mg/L) Be(nchm) * Inspection Date Inspector I Tier One Response Iin
1/28/2018 1 Building 105 Outfall I Aluminum 0.869 0.75 02/16/2018 Stelnmetz Possible Cause: Excess sand in the stormwater conveyance system from treating icy roads
Selected Action: Collected Sol & sand samples on 06/29/2011
Results from 06/29/2011 samples Indicate that area sails contain aluminum
Preventative Measures: Verified that sediment Is not building up in the stomnvaler conveyance system
upstream from the Sampling point. Aluminum levels above the benchmark at this outfall are considered to be an
isolated event.
Tier Two Reporting (Outfall #1)
Sample Date Location
Parameter
Result (mg/L)
Be(nmg L) rk Inspection Date Inspector
Tier Two Response
1/28/2018 1 Building 108 Outfall
I Aluminum
1.76
0.75 02/16/2018 1 Steinmetz
Possible Cause: Excess Sand in the stormwater conveyance system from treating icy roads
Selected Action: Collect receiving water Samples for aluminum to determine downstream Impacts.
Preventativemeasures: inspection revealed that some saw remains a org the roadway, which may have
increased levels of aluminum in stormwater
Tier Two Reporting (Receiving Water Study / Outfall #1)
Sample Date
Location
Parameter
Result (mg/L)
Benchmark
(mg5/22/2018
Tier Two Response
Building 108 Outfall
Aluminum
0.585
0.75
0.75
WtStelnmetz
PossibleCause: Natural aluminum source upstream and downstream from NIEHSoudalls
Selected Action: Collect receiving water samples for aluminum to determine downstream impacts.
Preventative Measures: Landscaping team thoroughly removed sediment from upstream areas using blowers
Building 105 Outfall
Aluminum
1.990
108/#1 Downstream
Aluminum
2.800
0.75
and brushes and flushed naturally with multiple rain events prior to sampling
Receiving water sampling results: Sampling indicates natural aluminum Source since concentrations
105/#2 Downstream
Aluminum
4.290
0.75
increased with distance from outfall
Merged Stream
Aluminum
5.730
0.75 Steinmetz
Notified NCDEQ that monthly Sampling vrould be dlacontimed as per receiving water study agreement.

Tier One Reporting (Outfal1 #1)
Sample Date
Location Parameter Result Benchmark
Inspection Date
Inspector
Tier One Response -
12/20/2018
1 Building 108 Outfall BOD 44 mg/L 30 mg/L
01/10/2019
Steinmetz
Possible Cause: Unknown, this is the first time 800 has exceeded benchmark
Selected Action: Visual inspection
Preventative Measures: Keep leaves and vegetative material from entering sample bottles
Tier Two Reporting (Outfall #1)
Sample Date
Location Parameter Result Benchmark
Inspection Date
Inspector
Tier Two Response
4/2/2019
1 Building 108 Outfall BOD 140 mg/L 30 mg/L
01/10/2019
1 Steinmetz
Possible Cause: Observed high levels of pollen In stomlwater sample
Selected Action: Begin monthly samples In May 2019
Preventative Measures: Avoid collecting samples from mid -March though late April when pollen count is high
Tier Two Monthly Sampling (Outfall #1)
Sample Date Location Parameter
Result (mg/L)
Benchmark
(mg06/20/2019
r
Tier Two Response
Outfall#1 BOD
07/23/2019 Outfall #1 BOD
7.10
10.00
z
z
June Monthly Sample(Rainfall=0.30")
July Monthly Sample (Rainfall = 1.16")
08/13/2019 Outfall #1 BOD
4.90
z
August Monthly Sample (Rainfall = 1.44")
3 Months Below Benchmark (Monthly monitoring no longer required)
Tier One Reporting (Outfall #2)
Sample Date Location
Parameter
Result Benchmark Inspection Date Inspector
Tier One Response
4/2/2019 Outfall #2
BOD
100 mail. 30 mg/L 04/18/2019 Steinmetz
Possible Cause: Observed high levels of pollen in stormwater sample
Selected Action: Visual impaction
Preventative Measures: Avoid collecting samples from mid -March through late April when pollen count Is high
Tier One Reporting (Outfall #1 & #2)
Sample Date( Location I Parameter I Result ) Benchmark ) Inspection Date Inspector
Tier One Response

4/2/2019
WWI #1
COD
360 me/L
120 mg/L
04/18/2019
Steinmetz
jPossible Cause: Observed high levels of pollen In stormwater sample
4/3/2019
Outfall #2
COD
200 mg/L
120 mgfL
04/18/2019
Steinmetz
ISelected Action: Visual Inspection
Preventative Measures: Avoid collecting samples from mid -March through late April when pollen count is high
Tier One Reporting (Outfall #2)
Sample Date
Location
Parameter
Result
Benchmark
Inspection Date
Inspector
Tier One Response
12/17/2019
Outfall #2
Nitrogen
170 mg/L
30 mg/L
01/06/2020
Steinmetz
Possible Cause: Unknown, this is the first time Nitrogen and Phos have exceeded benchmark
Oulfall #2
Total Phos
2.3 mglL
2 mg/L
01/06/2020
Steinmetz
Selected Action: Visual inspeclbn and personnel interview
Preventative Measures: Site Inspection did not reveal evidence of fertilizer spill or other chemical release.
Interviewed ORF landscaping COR and ORF 102 retaining well and 105 concrete drive construction project
COR. Neither were aware of any events that could have contributed to elevated stormwaler nitrogen and
phosphorus at Oudall #2. Requested that both CORs remind their contractors about spill response procedures
for petroleum and other chemicals including fertilizer

a

Stormwater Outfall Map Legend
Sewer
tS� Manhole - Location errors
• Manhole
Stormwater Drainage Features
■ Catch Basin
■ Catch Basin - Location errors
x Catch Basin -Abandoned
+ Headwall
f Headwall - Location errors
Headwall -Abandoned
• Other
• Other - Location errors
• Manhole
+ Manhole - Location errors
Storage Tanks -
■ Above ground storage tank, E85
■ Above ground storage tank, Fuel Oil
Above ground storage tank, Liquid CO2
Above ground storage tank, Liquid Nitrogen
Above ground storage tank, Oil Separator Tank
x Above ground storage tank, Oil Separator Tank, Abandoned
Above ground storage tank, Propane
► ► Flow Direction
Best Management Practices
Sanitary Sewer pipes
Storm Drain Pipes
—•--- Hydrology
'-Hater
_ Best Management Practices
NIEHS Hillshade
Elevation
High : 254
Low: 0

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105
Analytical & Visual Monitoring I