NCG551331_Compliance Evaluation Inspection_20210323

March 23, 2021

Dave and Deborah Nostrand
1221 Benbow Drive
Durham, NC 27704

Subject: Compliance Evaluation Inspection
Single Family Wastewater Treatment System
General NPDES Permit NCG550000
Certificate of Coverage NCG551331
Facility: 1221 Benbow Drive
Durham County

Dear Mr. and Mrs. Nostrand:

On March 3, 2021, Stephanie Goss from the Raleigh Regional Office visited your single-family residence
(SFR) wastewater treatment system to evaluate compliance with the subject General NPDES Permit.
Your assistance during the inspection was greatly appreciated.

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) NCG551331 authorize the
discharge of domestic wastewater from your treatment system to receiving waters designated as Panther
Creek, classified a WS-IV, NSW waters in the Neuse River Basin. The authorized discharge is in
accordance with the effluent limits and monitoring requirements established within the General Permit.
The checked boxes below show what conditions were noted at your facility:

NCG550000 Ownership Change Form: According to Durham County deed of records,
David and Deborah Nostrand owns the residence and property located at 1221 Benbow Drive in
Durham, North Carolina. As the property owner, you are also the owner of the existing single-
family wastewater treatment system, which treats the domestic wastewater from the residence and
releases the effluent to the receiving waters indicated above. Because the treatment system makes
an outlet to waters of the state, it is an activity for which the subject permit is required. To comply
with North Carolina General Statute § 143-215.1(a), which requires a person to obtain a permit to
make an outlet into the waters of the state, you will need to complete and submit the attached
NCG550000 Ownership Change Form to the Division. If you have any questions regarding
change in permit ownership or completing the form, then please contact Stephanie Goss at 919-
791-4256.

Dave and Deborah Nostrand, NCG551331
March 23, 2021 Page 2 of 3

Treatment system operation: The wastewater treatment system shall be maintained at all
times to prevent seepage of sewage to the surface of the ground.

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. Within 30-days of receiving this
letter, please send a copy of the most recent receipt/invoice to this office showing the date the
septic tank was last checked and/or pumped out. The General NPDES Permit requires the
permittee to retain records associated with sewage disposal activities for a period of at least 5
years.

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 did not observe any chlorine tablets in the chlorinator.
However, you provided documentation on March 6, 2021 via email that the correct chorine tablets
are used and that they disappear into 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.

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 and
Total Residual Chlorine. 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 June 1, 2021. 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
and 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.

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

Dave and Deborah Nostrand, NCG551331
March 23, 2021 Page 3 of 3

malfunctioning system shall be documented and steps taken to correct the problem. The discharge
pipe was not visible and accessible the day of the inspection. However, the discharge pipe was
made visible and accessible on and pictures were provided for verification via email on March 6, 2021.
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 maintain all
monitoring data and associated maintenance records onsite for a minimum of three years and
available for inspection.

Within 30-days receipt of this letter, please submit a written response to this office indicating the
actions you will take or have taken to comply with or resolve the issues noted above.

If you have questions or comments about this inspection or the requirements to take corrective action (if
applicable), then please contact Stephanie Goss via email at [e-mail] or 919-791-
4256.

Sincerely,

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
NCG550000 Ownership Change Form

Cc: RRO/SWP Files
Laserfiche

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