NC0083925_Correspondence_20191114

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
Shannon V. Becker
Aqua North Carolina, Inc.
202 Mackenan Court
Cary, NC 27511
NORTH CAROLINA
Environmental Quality
November 14, 2019
Subject: Complaint & Reconnaissance Inspection Report
Salem Glen Subdivision WWTP
NPDES Permit # NCO083925
Davidson County
Dear Mr. Becker:
On October 4, 2019, the Division of Water Resources (Division), Winston-Salem Regional Office
received a complaint of sewage odor at the above referenced wastewater treatment plant. The
complainant noted that the odor is permeating and especially noticeable in the evenings. The
Division has received several similar complaints over the past 2 years.
Paul DiMatteo visited the site on the evening of October 10 and noted a concentrated area of
sewage odor near Keswick Lane and Deercroft Lane. The inspector then met with Samuel Pegram,
Operator in Responsible Charge (ORC), on November 7 to discuss the complaint. According to
Mr. Pegram, although a blower was down around the time of the complaint, it was operating
normally by the time the Inspector visited the site and detected the odor. Mr. Pegram also said he
didn't think their temporary rerouting of air from the equalization basin to maintain adequate air
in the aeration basin would cause the odor in question. The inspector discussed the possibility of
the odor originating from a slug of septic water in the collection system, but this was not verified
during the inspection.
Requested Response
Please submit a response to this letter within 60 days of receipt. In your response, please discuss
the complaints noted above, and the findings summarized in the attached inspection report. Please
include your typical response to receiving these complaints, your thoughts on the cause of the odor
conditions, any justifications for those thoughts, and the feasibility of implementing a solution.
D North Carolina Department of Environmental Quality I Division of Water Resources
EQ�p
Winston-Salem Regional Office 1 450 West Hanes Mill Road, Suite 300 I Winston-Salem, North Carolina 27105
NORTH CAROLINA �
o•o•°"•mme""°"^•"vin"•i� /� 336.776.9800

If you have any questions concerning this report, please contact Paul DiMatteo at [phone]
or Lon Snider at [phone].
Sincerely,
Docu Signed by:
LL-L
41 � J�,Idtt'
1 49 25C 4EA.
Lon m er, Regional Supervisor
Water Quality Regional Operations Section
Winston-Salem Regional Office
Division of Water Resources, NCDEQ
Enclosures — Inspection Report
CC: WSRO Laserfiche Files

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 I 2 IF I 3 I NC0083925 111 12 I 19/11/07 I17
18 L R J 19 L G] 201 I
211111 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 f6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating 131 QA
---------------------- Reserved -------------------
671
70 I I 71 I I 72 I r I
u I�
73 I I 174 751 I I I I I I I80
I I i
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 oermit Number)
09:30AM 19/11/07
19/01/01
Salem Glen Subdivision WWTP
5180 Dock Davis Rd
Exit Time/Date
Permit Expiration Date
Clemmons NC 27012
10:30AM 19/11/07
23/12/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Samuel E. Peg ram/ORC/704-489-9404/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Joseph R Pearce,202 Mackenan Crt Cary NC 27511/Director of
Operations/919-653-6964/9194601788 No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 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
Paul DiMatteo DocuSigned by: DWR/WSRO WQ/336-776-9691/
I;m
4��-
11/13/2019
F10C7C2E5BB34D4...
Signature of Management Q /�o u� ynerf by: Agency/Office/Phone and Fax Numbers
Date
T Snider
FLI
11/14/2019
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type (Cont.)
N CO083925 I11 121 19/11 /07 117 18 1 RI
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
On November 7, 2019, 1 met with Samuel Pegram to discuss a recurring complaint of sewage odor in
the community, especially in the area near Keswick Lane directly uphill of the wastewater treatment
plant. After receiving the most recent complaint I visited the area in the evening around 7:00 pm on
10/10/2019 and verified an odor that was concentrated around Deercroft Lane and Keswick Lane. I
spoke with some nearby residents who said that the odor is most noticeable in the morning and had
concerns that the wastewater plant was not sized adequately to handle its flow. I thought that the odor
was probably not attributable to the wastewater plant due to the concentrated area of the odor and its
proximity to the wastewater treatment plant's influent.
Mr. Pegram explained that a blower went down around 9/30, and it took a few days to get the blower
replaced and wired up. However, he said that the new blower was operational by 10/8, and Mr. Pegram
also said that in order to adequately feed the aeration basins while the blower was down they cut air to
the equalization basin, but he didn't think this would cause a noxious odor. He also said that they
received a complaint as well and put out deodorizing blocks, but they were not able to verify any odors.
Recent complainants have said that the odor is most apparent during the evening.
We discussed the possibility that the issue lies in the collection system, that a slug of septic water may
be moving through the collection system in the evening and causing the odor. We checked the
Keswick Ln pump station and a manhole near Keswick Lane and Deercroft Lane in an attempt to verify
flow conditions to substantiate whether water may be going septic, but we were not able to make any
determinations.
Page#

Permit: NC0083925
Inspection Date: 11/07/2019
Permit
Owner - Facility: Salem Glen Subdivision WWTP
Inspection Type: Reconnaissance
(If the present permit expires in 6 months or less). Has the permittee submitted a new
application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Comment:
Yes No NA NE
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