NCG551489_Compliance Evaluation Inspection_20180725

ROY COOPER
ckneritoiMICHAEL S.REGAN
- 0 Seel entry
Water Resources LINDA CULPEPPER
Enrn'onmenlal Quality
Intel tin Director
July 25, 2018
Edward Dale White
1207 Hatch Road
Chapel Hill,NC 27516
Subject: Compliance Evaluation Inspection
Single Family Wastewater Treatment System
Permit No.NCG551489
Orange County
Dear Mr.White:
On July 12, 2018, Jane Bernard from the Raleigh Regional Office visited your single-family residence
(SFR)wastewater treatment system to evaluate compliance with the above permit to discharge
wastewater. The checked boxes (Ell below show what conditions were noted at your facility:
❑ In compliance: You are reminded to regularly maintain the chlorine disinfection and
dechlorination systems, have the effluent sampled once a year, and have the septic tank pumped
out every 3 to 5 years. Your good record of operation and meeting the petiuit requirements is
highly commended.
❑ Your home is improperly plumbed: Some of the wastewater discharges are going directly to
the environment without first passing through the treatment system. This must be corrected
immediately. Please submit a schedule to this office within 20 days of receipt of this letter that
states your plan for correcting this deficiency. The work is to be completed within the next 3
months.
❑ Disinfection: Your system is lacking disinfection, either chlorine tablets or a UV light system.
New rules put into place on August 1, 2007 require all SFR systems to have a means of
disinfection(and dechlorination when chlorine tablets are used to disinfect,if the system was
installed since that date). Since your system had no disinfection,the installation is to include a
chlorine tablet dispenser, a contact chamber capable of providing a minimum 30 minute contact
time, and another tablet dispenser that will hold dechlorination tablets. Please submit a schedule
to this office within 20 calendar days of receipt of this letter that states your plan for correcting
this deficiency.
❑ 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. The inspector did not observe
any chlorine tablets in the chlorinators. Part 1,Permit Conditions (Operation &Maintenance),
item 4 within General Permit NCG550000'requires-the permittee to maintain all system
components,including...disinfection units... at all times and in good operating order. Please
ensure the correct type of tablets are used and maintained in the chlorinator.
Compares�. ...
State of North Cal ohne I Environmental Quality
1628 Mail Service Centel!Raleigh,North Caloltna 27699-1628
919-791-4200

❑Dechlorination: Your system was installed after August 1, 2007, so must have a means of
dechlorination located downstream of the chlorinator and its contact chamber. See Disinfection
paragraph above. Please submit a schedule to this office within 20 calendar days of receipt of this
letter stating your plan for correcting this deficiency.
❑ 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 everyiveyears or when the solids level is found to be more than 1/3 of the liquid
depth in the septic tank compartment. A pumping company can check the status periodically and
determine when pumping is required. Within 45-days of receiving this letter,please let this office
'know the date the septic tank was last pumped out.
jEj Failure to analyze the effluent: Part 1. A.,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),TSS (Total Suspended Solids)
Fecal Colifouni and Total Residual Chlorine. 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 within the last year,then please
collect a sample of the effluent,have it analyzed by a certified commercial laboratory and submit
the results to this office no later than September 30,2018.
® Locations of treatment units are unknown: Determine this and report to this office within
30 days of receipt of this letter with a sketch or map. At the time of this inspection the outfall
could not be located. Please locate and clear the outfall so that it can flow freely. The right of
way should be maintained surrounding the outfall at all times.
n Other: Any person who discharges or who proposes to discharge pollutants (domestic
wastewater)to the surface waters of the state or onto the surface is required to secure a permit. It
is recommended that you consult with an engineer who is familiar with the design and permitting J
of single family wastewater treatment and disposal systems. I have provided a Permit
Name/Ownership Change Foini. Please complete the highlighted areas and make sure the
information is correct before signing. Return the form to the address on the back within 30-days
of receiving this letter.
If you have questions or comments about this inspection or the requirements to take corrective action,
please contact Jane Bernard or me at 919-791-4200 Licensed plumbers should be used to make
plumbing changes within your home. Contractors for installing disinfection or other equipment may be
found in the Yellow Pages under Environmental Consultants.
Sinc.Kely,
S.Daniel Smith, Supervisor
Water Quality Regional Supervii'sor
Raleigh Regional Office
Attachments: Inspection Reports
cc: RRO/SWP Files
Charles Weaver,NPDES Permitting Unit w/o attachments
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