WQ0002161_NOV-2022-LV 0857-0860 Response_20230125

Kurtz, Cassidy
From: Mark Shanahan <[e-mail]>
Sent: Wednesday, January 25, 2023 6:52 PM
To: Kurtz, Cassidy
Subject: [External] Re: Carolina Friends School NOV response
Attachments: NOV Response 2022.doc
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Dear Ms. Kurtz,
Please find attached the Carolina Friends School NOV response.
Thank you for speaking with me and Chad Leinbach and helping us to continuously work on being safe and in
compliance. We are working on all the solutions available to make sure there aren't any more late notices.
Thank you again and if you need anything more from us, please don't hesitate reaching out to me.
Sincerely,
Mark Shanahan
Mark Shanahan
Director of Facilities
Aikido Teacher
Carolina Friends School
919-383-6602 *247
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1

ENVIRONMENTAL - WATER SUPPLY - WASTEWATER - GEOTHERMAL
CONNER CONSULTING, LLC
1 284 WINDY RIDGE ROAD, CHAPEL HILL, NORTH CAROLINA 27517
PHONE: [phone]
December 15, 2022
Ms. Vanessa Manuel
NC DEQ, Division of Water Resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, North Carolina
Re: Notice of Violations (NOV-2022-PC-PC-0701, 0704-0709 and
NOV-2022-LV-0857-0860)
Carolina Friends School WWTF
Durham, Orange County
Permit # WQ0002161
Dear Ms. Manuel:
On behalf of the Carolina Friends School, Inc., the following resp . nses are warranted for the
continued operation of the wastewater disposal system at the Caro ina Friends School:
1. NOV-2022-LV-0857 Monthly Average exceeded for Tota
An adjustment was made to the recirculation times for the
effluent more time to oxidize. Compliance was achieved o
February 2022 (1.6 ppm Total Ammonia Nitrogen). We ar
made will result in the system maintaining compliance.
2. NOV-2022-LV-0858 September 2021 Monthly Inflow Ex
reported 6,443 gpd) The actual average amount of effluent
4,804 gpd. Inflow reported is based on the water usage fo
differentiate between athletic field irrigation, leaks in the d
such as water hoses left on overnight. Thus the WWTF w.
3. NOV-2022-LV-0859 August 2021 Monthly Inflow Excee
5,955 gpd) The actual average amount of effluent flow lea
gpd. This amount was effluent was found to be due to the
malfunctioning. Mechanical Solutions, Inc., Hillsborough
replaced some of the valves. The WWTF was in pat in co
was in compliance for September 2021.
Ammonia Nitrogen
Z Treat system to give the
the next sample event in
hopeful that the adjustments
eeded (5,500 gpd limit —
ow leaving the WWTF was
the school and does not
stribution system or mishaps
s in compliance.
ed (5,500 gpd limit — reported
ing the WWTF was 6,263
ron removal filter backwash
erviced the filters and
pliance for August 2021 but

-2-
4. NOV-2022-LV-0860 July 2021 Monthly Inflow Exceeded
6,161 gpd) The actual average amount of effluent flow lea
gpd. Inflow reported is based on the water usage for the sc
between athletic field irrigation, leaks in the distribution sy
hoses left on overnight. Thus the WWTF was in complian
5. NOV-2022-PC-0701, 0704 to 0707 Late/Missing NDMRs
All reports have been submitted through October 2022. T
December 31, 2022. Reports were late due to staffing issu
Going forward I am concerned that water usage may lead to other
Therefore, I propose to use the meters at the WWTF that record i
the NDMR. Please let me know about this proposal.
Sincerely yours,
Chad Leinbach, ORC
Cc: Mark Shanahan, Facilities Director
(5,500 gpd limit — reported
ing the WWTF was 4,684
ool and does not differentiate
tem or mishaps such as water
e.
nd NDARs
November report is due by
s, etc.
alse flow violations.
gation and enter that data on