NC0047384_Report_20170112

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City of Greensboro
L J North Carolina
Water Resources Department
January 12, 2017 Certified Mail 7003 1680 0001 0763 6495 Return Receipt Requested
North Carolina Department of Environmental Quality
Division of Water Resources Attn: Jordan Lake Watershed Coordinator
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RECEIVEDINCDEQIDWR
JAN 17 2017
Water Quality
Permitting Section
RE: T. Z. Osborne NPDES Total Nitrogen Reduction Schedule Report for CY 2016
Submitted in Response to NPDES Permit NC0047384 Part I-A.(4)
To Whom It May Concern:
This correspondence will serve as the City of Greensboro Total Nitrogen Reduction Schedule Report for
CY2016 in order to comply with Part 1-A.(4) of the T. Z. Osborne NPDES permit NC0047384. The permit
includes the following requirements for the 2016 report:
• Award construction contract for Package 1 of the T. Z. Osborne BNR Project
• Bid construction contract for Packages 2 and 3 of the T. Z. Osborne BNR Project
• By December 31, 2016 submit report to DWR on activities relating to Packages 1, 2 and 3 of the
T. Z. Osborne BNR Project
• Note: In September 2014, the City of Greensboro decided to continue the Haw River Arm Study
for at least an additional 12 months (through September 2015) and in 2015, because of the
State of North Carolina Solar Bee project in the Haw River Arm, Greensboro decided to continue
the study until further notice.
Jordan Lake Haw River Arm Study
• The Haw River Arm Study began in October 2013 and includes 2 sampling events per month.
• Two Sampling Sites: Site 055C— Below Pittsboro at the upper end of the Haw River Arm and
Site 055E — Near the Jordan Lake Dam on Haw River arm
• All lake sampling and laboratory analyses were conducted by Meritech, Inc., a State -certified
commercial laboratory.
• The following parameters were included in the study:
Field Parameters
Dissolved Oxygen (in mg/1)
pH (in standard units)
Specific Conductance (in umho/cm)
Temperature (in °Celsius)
Other Parameters
Total Suspended Solids (TSS) — Standard Methods 2540 D (in mg/1)
Turbidity — EPA Method 180.1 (in NTU)
Ammonia -Nitrogen — EPA Method 350.1 (in mg/1)
Total Kjeldahl Nitrogen (TKN) — EPA Method 351.1 (in mg/1)
Nitrate/Nitrite Nitrogen — EPA Method 353.2 (in mg/1)
Total Phosphorus — EPA Method 200.7 (in mg/1)
Chlorophyll a — EPA Method 445.0 (in pg/I)
PO Box 3136 , Greensboro, NC 27402-3136 www.greensboro-nc.gov s 336-373-CITY (2489) TTY # 333-6930

Letter of 1-12-2017 Page 2 —T. Z. Osborne NPDES Total Nitrogen Reduction Schedule Report for CY 2016
• The CY2016 Total Nitrogen Reduction Schedule Report contains an interim data summary for
October2013 through October 3, 2016, since the study is on -going.
• A final report will be submitted at the conclusion of the study.
Jordan Lake Haw River Arm Study Interim Data Summary Report (October 2013-October 3, 2016)
• One hundred forty-four samples (144) have been collected in the 36-month period.
• Results from Site 055C: Below Pittsboro at the upper end of the Haw River Arm
o 10 WQS exceedances for pH (10/72 = 13.9% exceedances)
o 3 WQS exceedances for turbidity (3/72 = 4.17% exceedances)
o 3 WQS exceedances for chlorophyll a (3/72 = 4.17% exceedances)
• Results from Site 055E: Near the Jordan Lake Dam on Haw River arm
o 1 WQS exceedance for pH (1/72 = 1.4% exceedances)
o 1 WQS exceedance for turbidity (1/72 = 1.4% exceedances)
o 0 WQS exceedances for chlorophyll a (0/72 = 0.0% exceedances)
T. Z. Osborne BNR Project Packages
• Package 1 of the T. Z. Osborne BNR Project was bid on July 10, 2014. Garney Construction was
awarded the project and issued a Notice to Proceed on December 1, 2014. Construction is on -going
and the package is scheduled for completion in late 2017.
• Package 2 of the T. Z. Osborne BNR Project was bid on August 28, 2014 and Garney Construction
was awarded the project by the Greensboro City Council on January 6, 2015. Construction is on-
going and the package is scheduled for completion in late 2017.
• Package 3 of the T. Z. Osborne BNR Project is being delivered using the Construction Manager at Risk
(CMAR) method and was awarded to Garney Construction by the Greensboro City Council on
November 15, 2015. Construction is underway and is scheduled for completion in 2017.
Sincerely,
Martie Groom
Laboratory and Industrial Waste Section Supervisor
Phone: [phone] Email: [e-mail]
cc: Steve Drew, Water Resources Department Director (via email)
Mike Borchers, Water Resources Department Deputy Director (via email)
Elijah Williams, Water Reclamation Manager (via email)
Bradley Flynt T. Z. Osborne ORC (via email)
Alicia Goots, Laboratory Coordinator (via email)
Julie Grzyb, NCDENR, WQ Permitting Section- NPDES (via email)