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Background
• Henderson County - Clear Creek WWTP
• NPDES Permit No. NC0090247
• Service Area: Edneyville area in Henderson County
• Permitted flow = 0.2 MGD (with potential expansion to 0.5 MGD)
• Will allow three existing WWTPs to be abandoned
• Discharges to Clear Creek, Class C waterbody
• Listed as impaired in the 2022 North Carolina 303 (d) List
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Legend
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WWTF Parcels
144-Year Floodplain
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Outfall Location
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1 inch = 300 feet
l+VI+VTP Footprint
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Henderson County, NC
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NPDES Permitting Process
• Complete Application
• Application received on April 17, 2023
• Engineering Alternative Analysis (EAA)
• Additional Information (if needed)
• Draft Permit
• Public Notice — 30-day comment period
• Draft permit was public noticed on September 12, 2023
• Public Hearing
• Final Decision — Must be made within 90 days of public hearing
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Engineering Alternatives Analysis (EAA)
• Connection to POTW
• Hendersonville WWTP is approximately 3.6 miles away and can accept flow,
approximately $12.3 million
• Land Application
• County -owned land application system, approximately $17.2 million
• Agricultural land application, approximately $13.3 million
• Wastewater reuse
• approximately $15.8 million
• Surface water discharge (NPDES permit)
• approximately $9.8 million
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Permit Components (Individual Permits)
• Components List and Receiving Stream Characteristics
is Effluent Limitations and Monitoring Requirements
is Special Conditions
is Standard Conditions
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Components List
A 0.2 MGD wastewater treatment facility consisting of, but not limited to:
• Influent pump station
• Bar screens
• Flow equalization tank
• Two (2) activated sludge trains
• Two (2) secondary clarification tanks
• Sludge holding tank
• Chlorine contact basin
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Department of Environmental Quality
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Effluent Limits &Monitoring Requirements
0.2 MGD
Effluent Characteristics
Flow (MGD)
Total Residual Chlorine (TRC)
BOD, 5-day, (20°C)
Ammonia (NH3 as N)
Dissolved Oxygen
Total Suspended Solids (TSS)
pH
Fecal Coliform (geometric mean)
Chronic Toxicity Pass/Fail
Total Nitrogen (TN)
Total Phosphorus JP)
Department of Environmental Quality
Limits
Monthly A verage Weekly A verage Daily Maximum
0.2 MGD
28 pg/L
30.0 mg/L 45.0 mg/L
Monitor & Report
Daily Average > 5.0 mg/L
30.0 mg/L 45.0 mg/L
Not < 6.0 or > 9.0 standard units
200 / 100 m L 400 / 100 m L
P/F at 2%
Monitor & Report
Monitor & Report
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Department of Environmental Quality
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� Special Conditions
is Chronic Toxicity Pass/Fail Monitoring (Quarterly)
• Instream Assessment of Biological Integrity (Annually)
• Notification of Start-up
is Electronic Reporting of Discharge Monitoring Reports
Department of Environmental Quality
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Anticipated Permit Timeline
• Public Hearing — February 5, 2024
• Public Comment Period Closes — 5:00 p.m. on February 6,
2024
• Final Decision (90 days) — No later than May 5, 2024
Department of Environmental Quality
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Department of Environmental Quality
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NCDEQ Division of Water Resources
Contact Information
• Siying Chen, Environmental Specialist II
Compliance & Expedited Permitting Unit
• Email: siying.chen@deq.nc.gov
• Phone:919-707-3619
For Public Records Requests:
• Laura Oleniacz, Public Information Officer
Division of Water Resources
• Email: laura.oleniacz@deq.nc.gov
• Phone:919-707-8604
Department of Environmental Quality
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Department of Environmental Quality
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�- Public Comments on the Daft Permit
• Mailed (post -marked no later than February 6, 2024):
NCDEQ/DWR/WQ Permitting Section
Attn: Siying Chen
Attn: Clear Creek WWTP
1617 Mail Service Center
Raleigh, NC 27699-1617
• E-mail (through Tuesday, February 6, 2024, 5 p.m.)
pu bl iccom ments(a-),deq . nc.gov.
Please include "Clear Creek WWTP" in the email subject line.
NORTH CAROLINA
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Department of Environmental Duality
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