NCG550820_CEI Report_20240425

DocuSign Envelope ID:45077CD4-922C-4EAF-A7CA-lEE2142D33BA
ROY COOPER _
Governor d C
ELIZABETH S.BISERr
Secretary •E QUAWM .
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
April 25, 2024
Mr. Ryan Freeman
4015 Redwood Road
Durham,NC 27704
Subject: Compliance Evaluation Inspection
Single Family Wastewater Treatment System
General NPDES Permit NCG550000
Certificate of Coverage NCG550820
Facility: 4015 Redwood Road
Durham County
Dear Mr. Freeman,
On April 24, 2024, Donald Smith from the Raleigh Regional Office visited your single-family
residence (SFR)wastewater treatment system to evaluate compliance with the subject General
NPDES Permit.
Our records indicate the treatment system consists of a septic tank sub-surface sand filter, tablet
chlorinator with chlorine contact chamber, and discharge pipe.
General NPDES Permit NCG550000 and Certificate of Coverage (COC)NCG550820 authorize
the discharge of domestic wastewater from your treatment system to receiving waters designated
as Panther Creek(classified as Water Supply(WS-IV); Nutrient Sensitive Waters (NSW)) in the
Neuse River Basin. The authorized discharge is in accordance with the effluent limits and
monitoring requirements established within the General Permit. The items below show what
conditions were noted at your facility:
Findings during the inspection were as follows:
1. Pumping the septic tank: You are required to inspect the septic tank at least
yearly to determine if solids must be removed or if other maintenance is
necessary. Septic tanks should be pumped out every five years or when the solids
level is found to be more than 1/3 of the liquid depth in the septic tank
compartment, whichever is greater. A pumping company can check the status
periodically and determine when pumping is required. You provided a copy of a
septic tank cleaning performed by Scotty's Sanitation Service on April 23, 2024.
The General NPDES Permit requires the permittee to retain records associated
with sewage disposal activities for a period of at least 5 years.
North Carolina Department of Environmental Quality I Division of Water Resources
4NORT�HCD Raleigh Regional Office 13800 Barrett Drive I Raleigh,North Carolina 27609
NORTHcnaou u 919.791.4200
DgrbwM of Embaanantal Oual�

DocuSign Envelope ID:45077CD4-922C-4EAF-A7CA-1 EE2142D33BA
Mr. Ryan Freeman,NCG550820
April 25,2024 Page 2 of 3
2. Chlorine tablets in the chlorinator: You are reminded that it is required that
chlorine tablets be maintained in the chlorinator to ensure proper disinfection of
the discharged wastewater. Chlorine tablets provide effective disinfection and
prevent/limit harmful bacteria from discharging to the environment. The product
label for these tablets must indicate the tablets are approved for wastewater use
and not for swimming pools. Part 1, Section D (1) of General NPDES Permit
NCG550000 requires the permittee to inspect the tablet chlorinator weekly to
ensure there is an adequate supply of tablets for continuous and proper operation.
Section D (4)requires the permittee to maintain all system components,
including...disinfection units...at all times and in good operating order. The
inspector observed chlorine tablets in the chlorinator. Please continue to ensure
the correct type of tablets are used and maintained in the chlorinator as
required by the General NPDES Permit. With weekly inspections, ensure the
tablets feed to the bottom of the chlorinator tubes. Chlorine tablets can swell
and get stuck in the tube where they do not settle and come in contact with the
wastewater stream.A straight rod can be used to help push the chlorine tablets
down when needed.
3. Analyzing the effluent: Part 1. C.,Effluent Limitations and Monitoring
Requirements,within General Permit NCG550000 requires a permittee to sample
and analyze the effluent leaving his/her treatment system prior to discharge
annually. Parameters to be sampled and analyzed include Flow, BOD
(Biochemical Oxygen Demand), Total Suspended Solids, Fecal Coliform, Total
Residual Chlorine, Total Nitrogen, Ammonia Nitrogen and Total Phosphorous.
Within 30-days of receiving this letter, please let this office know if you have
monitored your effluent discharge within the last 12 months and provide this
office with a copy of the lab results if you have. If you have not monitored your
effluent, then please collect a representative sample of the effluent, have it
analyzed by a certified commercial laboratory and submit the results to this office
no later than May 31, 2024. If, during this time you are unable to collect a
representative sample of the effluent discharge due to insufficient flow from the
discharge pipe, then update this office with that information and continue to
monitor the discharge. If conditions for sampling become favorable, then arrange
to collect a sample. Failure to monitor the effluent discharge as required is a
violation of NPDES General Permit NCG550000.
4. Discharge outlet location. The permittee is required to conduct a visual review
of the outfall location at least twice each year (one at the time of sampling) to
ensure that no visible solids or other obvious evidence of system malfunctioning
is observed. Any visible signs of a malfunctioning system shall be documented,
and steps taken to correct the problem. The discharge pipe was visible and
accessible the day of the inspection. Please continue to ensure the outlet is
always visible/maintained and cleared of vegetation, soil, and leaves.
Please continue to periodically inspect the wastewater treatment system to ensure the treatment
components are always maintained and in good operating order. You are also reminded to
D E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
Raleigh Regional Office 13800 Barrett Drive I Raleigh,North Carolina 27609
NORTH CAROUNA _
Depwbnwd„F r��,�wla�,\ /./ 919.791.4200

DocuSign Envelope ID:45077CD4-922C-4EAF-A7CA-1 EE2142D33BA
Mr. Ryan Freeman,NCG550820
April 25,2024 Page 3 of 3
maintain all monitoring data and associated maintenance records onsite for a minimum of
three years and available for inspection.
If you have questions or comments about this inspection or the requirements to take corrective
action(if applicable), then please contact Donald Smith at 919-791-4234
Sincerely,
DocuSigned by:
Vaan t SSa. f. At.aj'�
B2916E6AB32144F...
Vanessa E. Manuel, Assistant Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources,NCDEQ
Attachment(s): EPA Water Compliance Inspection Report
Cc: Laserfiche
D E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
Raleigh Regional Office 13800 Barrett Drive I Raleigh,North Carolina 27609
NORTH CAROUNA _
Depwbnwd„F r m- 919.791.4200

DocuSign Envelope ID:45077CD4-922C-4EAF-A7CA-1 EE2142D33BA
United States Environmental Protection Agency Form Approved.
EPA Washington,D.C.20460 OMB No.2040-0057
Water Compliance Inspection Report Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 IN 2 u 3 I NCG550820 111 121 24/04/24 I17 18[C]I 19 I G I 20U
21111I I I I I I I II I I I I I I I I I I I I I I I I I I I I I I I II I I I I I r6
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA ----------------------Reserved-------------------
67 70LJ 71Ity 72 L-J 73 1 74 79 I I I I 80
Section B: Facility Data
Name and Location of Facility Inspected(For Industrial Users discharging to POTW,also include Entry Time/Date Permit Effective Date
POTW name and NPDES Dermit Number) 11:30AM 24/04/24 21/10/05
4015 Redwood Road
4015 Redwood Rd Exit Time/Date Permit Expiration Date
Durham NC 27704 11:50AM 24/04/24 25/10/31
Name(s)of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data
Name,Address of Responsible Official/Title/Phone and Fax Number
Contacted
Ryan A Freeman,4015 Redwood Rd Durham NC 27704///
Yes
Section C:Areas Evaluated During Inspection (Check only those areas evaluated)
Records/Reports 0 Facility Site Review
Section D: Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s)and Signature(s)of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Donald Smith Docusignedby, DWR/RRO WQ/919-791-4234/ 4/25/2024
C
512ED5247FA847A...
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
DocuSigned by:
UALt,t,SSA f" 4/25/2024
EPA Form 3560-3(Rev 9-94)Previous editions are obsolete.
Page# 1

DocuSign Envelope ID:45077CD4-922C-4EAF-A7CA-1 EE2142D33BA
NPDES yr/mo/day Inspection Type (Cont.) 1
31 NCG550820 I11 12I 24/04/24 11 7 18 i c i
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
1. Pumping the septic tank: You are required to inspect the septic tank at least yearly to determine if
solids must be removed or if other maintenance is necessary. Septic tanks should be pumped out
every five years or when the solids level is found to be more than 1/3 of the liquid depth in the septic
tank compartment, whichever is greater. A pumping company can check the status periodically and
determine when pumping is required. You provided a copy of a septic tank cleaning performed by
Scotty's Sanitation Service on April 23, 2024. The General NPDES Permit requires the permittee to
retain records associated with sewage disposal activities for a period of at least 5 years.
2. Chlorine tablets in the chlorinator: You are reminded that it is required that chlorine tablets be
maintained in the chlorinator to ensure proper disinfection of the discharged wastewater. Chlorine
tablets provide effective disinfection and prevent/limit harmful bacteria from discharging to the
environment. The product label for these tablets must indicate the tablets are approved for
wastewater use and not for swimming pools. Part 1, Section D (1) of General NPDES Permit
NCG550000 requires the permittee to inspect the tablet chlorinator weekly to ensure there is an
adequate supply of tablets for continuous and proper operation. Section D (4) requires the permittee
to maintain all system components, including...disinfection units...at all times and in good operating
order. The inspector observed chlorine tablets in the chlorinator. Please continue to ensure the
correct type of tablets are used and maintained in the chlorinator as required by the General NPDES
Permit. With weekly inspections, ensure the tablets feed to the bottom of the chlorinator tubes.
Chlorine tablets can swell and get stuck in the tube where they do not settle and come in contact with
the wastewater stream. A straight rod can be used to help push the chlorine tablets down when
needed.
3. Analyzing the effluent: Part 1. C., Effluent Limitations and Monitoring Requirements, within
General Permit NCG550000 requires a permittee to sample and analyze the effluent leaving his/her
treatment system prior to discharge annually. Parameters to be sampled and analyzed include Flow,
BOD (Biochemical Oxygen Demand), Total Suspended Solids, Fecal Coliform, Total Residual
Chlorine, Total Nitrogen, Ammonia Nitrogen and Total Phosphorous. Within 30-days of receiving this
letter, please let this office know if you have monitored your effluent discharge within the last 12
months and provide this office with a copy of the lab results if you have. If you have not monitored
your effluent, then please collect a representative sample of the effluent, have it analyzed by a
certified commercial laboratory and submit the results to this office no later than May 31, 2024. If,
during this time you are unable to collect a representative sample of the effluent discharge due to
insufficient flow from the discharge pipe, then update this office with that information and continue to
monitor the discharge. If conditions for sampling become favorable, then arrange to collect a sample.
Failure to monitor the effluent discharge as required is a violation of NPDES General Permit
NCG550000.
4. Discharge outlet location. The permittee is required to conduct a visual review of the outfall
location at least twice each year (one at the time of sampling)to ensure that no visible solids or other
obvious evidence of system malfunctioning is observed. Any visible signs of a malfunctioning system
shall be documented, and steps taken to correct the problem. The discharge pipe was visible and
accessible the day of the inspection. Please continue to ensure the outlet is always
visible/maintained and cleared of vegetation, soil, and leaves.
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DocuSign Envelope ID:45077CD4-922C-4EAF-A7CA-1 EE2142D33BA
Permit: NCG550820 Owner-Facility: 4015 Redwood Road
Inspection Date: 04/24/2024 Inspection Type: Compliance Evaluation
Yes No NA NE
Page# 3