NCS000588_2021 Annual Report_20220425

Raleigh -Durham Airport Authority
RDU
Michael J. Landguth, A.A.E.
President & CEO
CERTIFIED MAIL
April 13, 2022
1000 Trade Drive • P.O. Box 80001 • RDU Airport, NC 27623
tel: [phone] • fax: [phone] • w .rdu.com
RECEIVED
APR 25 2027
7EMLR-Stormwater Program
NC DEQ - Division of Energy, Mineral, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, NC 27699-1612
Re: NPDES 2021 Annual Report
Raleigh -Durham Airport Authority
NPDES Permit No. NCS000588
To Whom It May Concern:
Also sent via email
The Raleigh -Durham Airport Authority (Authority) respectfully submits an original and one
copy of the calendar year 2021 (CY2021) Annual Report, in accordance with NPDES Permit No.
NCS000588 (Permit).
The current NPDES Permit (Permit), referenced above, for the Raleigh -Durham International
Airport (RDU) is dated May 12, 2017. A permit renewal application was submitted to DEMLR
via certified mail as well as emailed to Brianna Young (Brianna.Youn¢aamcdenngov) on
September 21, 2021. The Authority's understanding is that the NCDEQ Division of Energy,
Mineral, and Land Resources (DEMLR) is backlogged and that review of the submitted permit
renewal application will not occur until sometime in 2023. Until a new NPDES permit is
received, the Authority and its Co-Permittees will continue operating under the expired Permit.
The Authority prohibited the use of Ethylene Glycol in 2006, requiring all inventory to be used
or removed from campus by 2007. Additionally, the Authority prohibited the use of Urea as a
pavement deicer in June 2012.
As part of the Permit renewal application process, stormwater samples were collected on January
25, 2021 at Outfalls 001, 002, 003, 004, and 016 for analysis of Benzene, Toluene,
Ethylbenzene, and total Xylenes (BTEX), Total Nitrogen, Total Phosphorus, Oil & Grease, and
Total Suspended Solids (TSS). Samples were also collected for Detergents (MBAS) at 001, 002,
003, 004, and 007. Discharge Monitoring Reports (DMRs) were submitted in January.
Raleigh -Durham Airport Authority Board Members
DURHAM COUNTY CITY OF RALEIGH WAKE COUNTY CITY OF DURHAM
Patrick Hannah, Chairman Sepideh Saidi, Vice Chair David Kushner, Secretary Tammie Hall, Treasurer
David Morgan Dickie Thompson Ellis Hankins Yesenia Polanco-Galdamez

Raleigh -Durham International Airport
Annual NPDES report for Permit NC5000588
Page 2
On March 16, 2021, samples were collected for Acute Toxicity and Propylene Glycol analysis at
Outfalls 001, 003, 004, and 007. DMRs were submitted in March 2021. Additionally, an Acute
Toxicity report was submitted to the NCDEQ Division of Water Resources Environmental
Sciences Section via certified mail. Prior to 2021, stormwater sampling was reduced to once per
permit cycle for all stormwater locations.
Enclosed please find the visual monitoring reports, the total glycol usage data, and pavement
deicing data for CY2021. This report was also emailed to Brianna Young with DEMLR.
If you have any questions, please do not hesitate to call me at 919-840-7741 or email me at
gina.danison(abrdu.com.
Sincerely,
&anison (she/her), ENV SP
Director of Environmental Programs
Raleigh -Durham Airport Authority
Enclosures
1. Visual Monitoring Reports for CY 2021
2. Total Deice Material Usage for CY 2021
3. Pavement Deicer Usage for CY 2021
Raleigh -Durham Airport Authority Board Members
DURHAM COUNTY CITY OF RALEIGH WAKE COUNTY CITY OF DURHAM
Patrick Hannah, Chairman Sepideh Saidi, Vice Chair David Kushner, Secretary Tammie Hall, Treasurer
David Morgan Dickie Thompson EllisHankins Yesenia Polanco-Galdamez

Visual Monitoring Reports for CY 2020
Raleigh -Durham International Airport
NPDES Permit: NCS000588
Spring1
1
WWII
[Date
Color
Odor.
Clarity
floating
Solids
Suspended
Solids
'
Foam
Oil
Sheen
Irndlcafoars:"
of SW...-
Comments
001
06/10/20
Light brown
None
2
2
2
N
N
downstream
erosion
0022
06/1 =01
Light brown
None
1
1
1
N
N
Riser barrel failed
003
06/10/20
Clear/Brown
None
2
1
1
N
N
and dry
004
06/10/20
Clear/Brown
None
5
1
1
Y
N
007
06/10/20
Clear/Brown
None
1
1
1
N
N
Trash
016
06/10/20
Clear/Brown
None
2
3
1
N
N
fish
035
06/10/20
Clear/Brown
None
2
1
1
N
N
frogs
H
06/10/20
Brown
None
3
1
1
N
N
erosion at inlet
1
06/10/20
Brown
None
3
1
1
N
N
P
06/10/20
Brown -red
None
3
1
1
N
N
riser barrel failed,
and mostly d ry
S
06/10/20
Clear
None
5
1
1
N
N
fish _
Trash,
Y
06/10/20
Yellow -brown
None
4
5
1
N
N
strong
Pollen & algae
garbage
crust on water
odor
UU
06/10/20
Light brown
None
5
1
1
N
N
_
KK
06/10/20
Clear/Brown
None
2
1
1
N
N
JJ
06/10/20
Yellow -brown
None
2
1
1
N
N
II
06/10/20
Clear
None
1
1
1
N
N
Fall 2020
_�_.___-j
Outfall
ram- -,---
Date
-__- ..
Color.
----
•Odor
i --
'
Clarity
y
Floadh :
Solids
°�� `-
3ius 'ended,
1P
Solids
----.---�
i
�Foa
� -
ail '
Sliee n
F-{n}hp :r. •
`
1:--7 - #ors
'L '
r�1ft11
I' •'�''�`_' . - -
s
Common
001
11/17/20
Green/Brown
None
3
2
1
N
N
Red brown algae
0022
11/18/20
Clear
None
2
1
1
N
N
Trash in
ditch
Lots of pine
needles
003
11/17/20
Clear/Brown
None
1
1
1
N
N
Trash
fish, birds, water in
and
004
11/17/20
Clear/Brown
None
1
1
1
N
N
007
11 /18/20
Grey
None
2
1
1
N
N
Ve etative decay
016
11/17/20
Clear/Brown
None
3
1
1
Y
N
0353
11/17/20
Clear/Brown
None
1
1
1
N
N
H
11/17/20
Clear/Brown
None
1
1
1
N
N
Fallen trees
1
11/18/19
Orange
None
4
3
3
N
N
Small sinkhole, no
flow,geese.
P
11/18/19
Brown
None
3
3
2
N
N
ducks
S
11/17/20
Clear
None
1
1
1
N
N
Bottles
Y
11/17/20
Brown
None
3
1
1
N
N
Trash
bottles
UU
11/17/20
Greenish
None
1
3
1
N
N
wood ducks
KK
11/17/20
Orange/Brown
None
2
1
1
N
Y
Trash
Chanel erosion,
CC. decay
JJ
11/17/20
Clear/Brown
None
2
1
1
Y
Y
i
yellowfoam
II
11/17/20
Clear/Brown
I None
1
1
1 1
Y
I N
ITrash
Erosion at outfall
1 Number rankings based on DWQ "Stormwater Discharge Outfall Qualitative Monitoring Report" where 1 = clear, no solids and 5 = very
2 SDO 002 visually monitored at sampling location per NCDENR DWQ approval on 5115/2013.
3 Outfall 035 added in Fall 2017 due to anticipated growth in the drainage basin.
NA = Not applicable

Total Deice Material Usage for CY2020
Raleigh -Durham International Airport
NPDES Permit: NCS000588
Prepared by: Denison
Prepared on: 3/29M
1. Only months with glycol usage are reported.
2. Numbers reported are in gallons and only for amount of glycol used.
3. Type IV glycol used for anti -icing is reported in gallons and at 100% (no water added).
4. As of June of 2012, urea is no longer allowed to be used on RDUAA property.
5. Ethylene glycol was banned from the airport in 2006. All product had to be utilizied by 2007.
6. Permit NCS000588 became effective 5/12/17. Previously Permit NC00084514 was in effect.

Pavement Deicer Usage for CY 2020
Raleigh -Durham International Airport
NPDES Permit: NCS000588
2020 Co-Permittees 50 0 963 179
2020 RDUAA 19,845 3,000 0 N/A
Totals 19,895 3,000 963 179
Prepared by: Danison
Prepared on:3/29/21
Notes:
1. Table denotes deicer material utilized on airfield (i.e. runways, taxiways, and ramp areas).
2. Permit NCS000588 became effective May 12, 2017. Previously NPDES Permit NC00084514 was in effect.
3. N/A denotes Not Applicable as the Authority does not use these products.