NC0038784_Compliance Evaluation Inspection_20180921

ROY COOPER
NC Governor
MICHAEL S. REGAN
Secretaiy
LINDA CULPEPPER
Water Resources Interim Director
ENVIRONMENTAL QUALITY
September 21, 2018
MR. SHANNON V.BECKER—PRESIDENT
AQUA NORTH CAROLINA,INC.
202 MACKENAN COURT
CARY,NORTH CAROLINA 27511
RECEIVED/DENR/DWR
Subject: Compliance Evaluation Inspection
8
NPDES Permit No. NC0038784 SEP 201
Neuse River Village MHP WWTP Water Resources
Wake County Permitting Section
Dear Mr. Becker:
On September 15, 2018 the Division of Water Resources received notification from Aqua that
the subject facility was taking on water in the tertiary polishing pond due to excessive rainfall
associated with Hurricane Florence. In response, Cory Larsen with Wake County Department of
Environmental Services, on behalf of the Division of Water Resources,performed a compliance
evaluation inspection of the subject wastewater treatment system to evaluate the status of the
WWTP on September 17, 2018. At the time of the inspection Todd Marcom, ORC and other
maintenance staff were present for the inspection and provided their assistance. Please refer to
the attached inspection report for full results.
The WWTP appeared to be back to full operation and producing clear effluent.No major damage
was sustained during the storm. The ORC stated that influent was temporarily bypassed to
the City's sanitary sewer in case of catastrophic flooding. It appeared that only minor losses of
effluent occurred from the polishing pond as it still retained full coverage of duckweed.
We appreciate your efforts to protect and maintain the WWTP during this storm event. Pre-
emptive measures to bypass the WWTP were warranted in this case but you are reminded to
provide advance notification(24 hours)to this office of any future unanticipated bypass or
diversion of waste streams in accordance with PART II STANDARD CONDITIONS FOR
NPDES PERMITS Section C. 4. Bypassing of Treatment Facilities.
If you have any questions regarding this inspection or require assistance in complying with your
permit please contact Cory Larsen at 919-480-9998 or [e-mail] or me at
[phone].
Division of Water Resources,Raleigh Regional Office,Water Quality Operations Section http://portal.ncdenr.org/web/wq/aps
1628 Mail Service Center,Raleigh,NC 27699-1628 Phone:[phone]
Location: 3800 Barrett Drive,Raleigh,NC 27609 Fax:[phone]
i�

t
NC0038784
September 20,2018
Page 12
Sincerely, 1:_r/
Danny S ith, Supervisor
Water Quality Regional Operations
Raleigh Regional Office
Enclosure: DWR Inspection Report
cc: Wake County Department of Environmental Services File
RRO File
Central Files
-NPDES Permitting Unit
Peter Rhodes—Aqua NC, Inc. (202 Mackenan Ct. Cary,NC 27511)

United States Environmental Protection Agency Form Approved.
E PA 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 u 2 u 3 I NC0038784 111 12 1 18/09/17 117 18 LI 19 I s 201 I
211III I I I I I III I II II I II WI I I I I II III III III I II I I f6
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA Reserved
671 I 70 I I—1 71 I 1 72 12, 1 73 I I I74 751 1 1 1 1 1 1 180
I Section B.Facility Data �I 1
Name and Location of Facility Inspected(For Industnal Users discharging to POTW,also include Entry Time/Date Permit Effective Date
POTW name and NPDES permit Number) 03 30PM 18/09/17 18/03/01
Neuse River Village WWTP
7001 Poole Rd Exit Time/Date Permit Expiration Date
Raleigh NC 27604 04 15PM 18/09/17 23/02/28
Name(s)of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data
///
Burnice Todd Marcom/ORC/919-625-2625/
Name,Address of Responsible Official/Title/Phone and Fax Number
Contacted
Shannon V Becker,202 Mackenan Ct Cary NC 27511/President/919-653-5570/
Yes
Section C:Areas Evaluated During Inspection(Check only those areas evaluated)
• Permit 11 Flow Measurement El Operations&Maintenance El Records/Reports
•Self-Monitoring Program • Sludge Handling Disposal • Facility Site Review • Effluent/Receiving Waters
I. Laboratory ® Other
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
Cory Larsen RRO WQ//919-856-7443/
• S n ture of Manage nt Q A Rev, r Agency/Office/Phone nd Fax Numbers D,, ,
at
,q/7/1'L/ ,0/,W,,W,Wi Csf 77,L ,5-‘,-c7-7,77
EPA Form/ 6310-3(Rev 9-94)Previous editions are obsolete
Page# 1

NPDES yr/mo/day Inspection Type (Cont.) 1
31 NC0038784 I11 121 18/09/17 117 18ls i
Section D:Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary)
WCES performed a compliance inspection on•September 17, 2018 in response to Aqua's notification
of high water conditions impacting the tertiary settling pond over the weekend. Todd Marcom, ORC
was present at the site with other maintenance staff. The WWTP appeared to be back to full operation
and producing clear effluent. No major damaage was sustained. Influent was temporarily bypassed to
the City's sanitary sewer in case of catastrophic flooding (similar to what happened during Matthew a
couple years prior). Fortunately,the river level didn't cause significant loss from the pond as evidenced
by the presence of 100% duckweed coverage. Had there been a major breach the weed would have
been observed outside of the pond liner.
•
Page# 2

Permit: NC0038784 Owner-Facility: Neuse River Village VVVVTP
Inspection Date. 09/17/2018 Inspection Type: Compliance Evaluation
Other Yes No NA NE
Comment: Facility was inspected immediately following heavy rainfall from Hurrican Florence.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping'? ❑ ❑ ❑
Does the facility analyze process control parameters,for ex. MLSS, MCRT, Settleable ® 0 0 0
Solids, pH, DO, Sludge Judge, and other that are applicable'?
Comment: Flooding did not occur during this storm. Some small volume of treated effluent left the
teritary pond when the Neuse river rose into the effluent pipe but it appeared minimal. Influent
was bypass to CORPUD sewer temporarily during storm.
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new 0 0 0 0
application?
Is the facility as described in the permit? 0 0 0 0
#Are there any special conditions for the permit's 0 0 0 0
Is access to the plant site restricted to the general public'? • 0 0 0
Is the inspector granted access to all areas for inspection'? 0 0 0 0
Comment. Entire plant area was observed and working properly
Bar Screens Yes No NA NE
Type of bar screen
a.Manual ■
b.Mechanical 0
Are the bars adequately screening debris'? ■ 0 0 0
Is the screen free of excessive debris'? ® 0 0 0
Is disposal of screening in compliance? 0 0 ❑ 0
Is the unit in good condition'? • ❑ 0 0
Comment
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? ® 0 0 0
Are the receiving water free of foam other than trace amounts and other debris'? • 0 0 0
If effluent (diffuser pipes are required) are they operating properly? 0 0 ■ 0
Comment: Outfall was below the water surface 1-2 feet.
Page# 3

Permit: NC0038784 Owner-Facility: Neuse River Village wwTP
Inspection Date: 09/17/2018 Inspection Type: Compliance Evaluation
Secondary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater'? S 0 0 0
Is the site free of excessive buildup of solids in center well of circular clarifier? 0 0 MI 0
Are weirs level? • 0 0 0
Is the site free of weir blockage? • 0 0 0
Is the site free of evidence of short-circuiting? 0 • 0 0
Is scum removal adequate'? • 0 0 0
Is the site free of excessive floating sludge'? 0 U 0 0
Is the drive unit operational? 0 0 U 0
Is the return rate acceptable(low turbulence)? • 0 0 0
Is the overflow clear of excessive solids/pin floc'? • 0 0 0
Is the sludge blanket level acceptable?(Approximately 1/4 of the sidewall depth) 0 0 0 El
Comment: Clarifiers had significant floating sludge but effluent over weir was clear. ORC stated that
turning off the blowers during the storm causes this condition. Skimming will continue until
the biological conditions return to normal.
Aeration Basins Yes No NA NE
Mode of operation Ext.Air
Type of aeration system Diffused
Is the basin free of dead spots? • 0 0 0
Are surface aerators and mixers operational? 0 0 I 0
Are the diffusers operational? • 0 0 0
Is the foam the proper color for the treatment process? • 0 0 0
Does the foam cover less than 25%of the basin's surface'? • 0 0 0
Is the DO level acceptable? • 0 0 0
Is the DO level acceptable?(1.0 to 3.0 mg/I) • 0 0 0
Comment: Aeration was working fine. Plans install fine bubble diffusers are underway to improve
oxygen transfer from the current system which requires both blowers running during peak
heat to maintain acceptable DO concentration.
De-chlorination Yes No NA NE
Type of system' Liquid
Is the feed ratio proportional to chlorine amount(1 to 1)? 0 0 0 •
Is storage appropriate for cylinders? ® 0 0 0
#Is de-chlorination substance stored away from chlorine containers? • 0 0 0
Are the tablets the proper size and type? 0 0 • 0
Page# 4

Permit: NC0038784 Owner-Facility: Neuse River Village VVWTP
Inspection Date: 09/17/2018 Inspection Type: Compliance Evaluation
De-chlorination Yes No NA NE
Comment: Dechlor liquid feed system appeared operational.
Are tablet de-chlorinators operational? 0 0 ® l
Number of tubes in use'?
Comment:
Disinfection-Liquid Yes No NA NE
Is there adequate reserve supply of disinfectant'? ® 0 0 0
(Sodium Hypochlorite)Is pump feed system operational? ® 0 0 0
Is bulk storage tank containment area adequate'?(free of leaks/open drains) ® 0 0 0
Is the level of chlorine residual acceptable'? 0 0 0 El
Is the contact chamber free of growth, or sludge buildup? ® 0 0 0
Is there chlorine residual prior to de-chlorination? 0 0 0
Comment: Chlorination system was operating.
Page# 5