NC0079057_Compliance Report_20221123

ROY COOPER
Governor
EIIZABE'TH S. BISER
Sea -easy
RICHARD E. ROGERS, JR.
Director
Josh O'Brien
Town of Manteo
PO Box 246
Manteo, NC 27954-0246
NORTH
Quality
November 23, 2022
SUBJECT: Compliance Inspection Report
Manteo WWTP
NPDES WW Permit No. N00079057
Dare County
Dear Mr. O'Brien:
The North Carolina Division of Water Resources conducted an Inspection of the Manteo WWTP on
11/16/2022. This inspection was conducted to verify that the facility is operating in compliance with the
conditions and limitations specified in NPDES WW Permit No. NC0079057. The findings and comments
noted during this inspection are provided in the enclosed copy of the inspection report entitled
"Compliance Inspection Report".
There were no significant issues or findings noted during the inspection and therefore, a response to this
inspection report is not required.
If you should have any questions, please do not hesitate to contact Paul Nyarko with the Water
Quality Regional Operations Section in the Washington Regional Office at 252-946-6481 or via email at
paul.nyarko©ncdenr.gov.
ATTACHMENTS
cc: Laserfiche
Sincerely,
V
David May, Regional Supervisor
Water Quality Regional Operations Section
Washington Regional Office
Division of Water Resources, NCDEQ
*nth Carolina Departtnem ofEorka.eehf Qlsedlty I Clifton of Wilier Mammal
WafM6vgton ReglonatOffice 1943 Mishlo ton Square Man I Wastipoon. North Carolina 7:7669
251946.64M

United States Environmental Protection Agency
E PA Washington, D.C. 20480
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-9s
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection
1 I�, I 2 LI 3 I NC0079057 111 121 22/11/16 117
Type
18I2i
1 1 1 1 1
Inspector Fac Type
19I s I 2011
211 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1
1-111 166
Inspection Work Days Facility Sef Mor toring Evaluation Rating B1 QA
671 1 LJ 70L. I 711 1 72 I N J1
L:
_1
Reserved
7374 79
1 1 1 1 1 1 180
Section B: Featly Data
Name and Location of Fadltty Inspected (For Industrial Users discharging to POTW, also Include
POTW name and NPDES permit Number)
Manteo WWTP
710 Bowsertown Rd
Manteo NC 27954
Entry Time/Date
12:45PM 22/11/16
Permit Effective Date
19/07/01
Exit llme/Date
01:20PM 22/11/16
Permit Expiration Date
23/12/31
Name(s) of Onsite Representative(s)/ ltles(s)/Phone and Fax Number(s)
///
Joshua J O'Brien/ORC/252-473-3513/
Other Facility Data
Name, Address of Responsible Official/little/Phone and Fax Number
Contacted
Josh OBrien,PO Box 246 Mantao NC 279540246//252-473-3513/
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Records/Reports
Compliance Schedules
Permit Flow Measurement . Operations & Maintenar
Self -Monitoring Progran • Sludge Handling Dispo: - Facility Site Review
Effluent/Receiving Wate
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 Nyarko DWR/WARO WQ/252-948-3845/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
nita ALI DWR/WQROS/252-948-3939/[e-mail] 11/23/2022
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page# 1

NPDES yr/mo/day
NC0079057 111 121 22/11/16
117
Inspection Type
1812j
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
On 11/16/2022, Paul Nyarko from the Division of Waater Resource in Washington Regional Office
conducted a Complaince Evaluation for Manteo WWTP. The facility was found to be compliance with
NPDES permit NC0079057. June 2022 DMR was spot checked with coressponding lab data. No
discrepancies were found. All records that were requested for the inspection were provided,avialable
and maintained by the permit.
Page# 2

Permit NC0079057 Owner - Faclllty: Manteo WWTP
Inspection Date: 11/16/2022 Inspection Typo: Compliance Evaluation
Compliance Schedules
Is there a compliance schedule for this facility?
Is the facility compliant with the permit and conditions for the review period?
Comment:
Yes No NA NE
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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 IIPEID
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment:
Permit Yes No NA NE
(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? 1 0 0 ❑
# Are there any special conditions for the permit? ® 0 0 ❑
Is access to the plant site restricted to the general public? MOOD
Is the inspector granted access to all areas for inspection? B ❑ ❑ ❑
Comment: The current permit is effective until December 31,2023
Bar Screens Yes No NA NE
Type of bar screen
a.Manual 1
b.Mechanical
Are the bars adequately screening debris? ■ 0 0 ❑
Is the screen free of excessive debris? 0 ❑ ❑ ❑
Is disposal of screening in compliance? ■ 0 0 ❑
Is the unit in good condition? ■ ❑ ❑ ❑
Comment:
Grit Removal
Type of grit removal
a.Manual
b.Mechanical
Is the grit free of excessive organic matter?
Yes No NA NE
0
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Page# 3

Permit: NC0079057 - Owner - Facility: Manteo WNTP
Inspection Data: 11/16/2022 Inspection Type: Compliance Evaluation
Grit Removal
Is the grit free of excessive odor?
# Is disposal of grit in compliance?
Comment:
Oxidation Ditches
Are the aerators operational?
Are the aerators free of excessive solids build up?
# Is the foam the proper color for the treatment process?
Does the foam cover Tess than 25% of the basin's surface?
Is the DO level acceptable?
Are settleometer results acceptable (> 30 minutes)?
Is the DO level acceptable?(1.0 to 3.0 mg/l)
Are settelometer results acceptable?(400 to 800 mUl in 30 minutes)
Comment:
Yes No NA NE
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Yes No NA NE
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De -chlorination Yes No NA NE
Type of system ? Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)? ■ ❑ 0 0
Is storage appropriate for cylinders? 0 0 • ❑
# Is de -chlorination substance stored away from chlorine containers? ■ 0 ❑ ❑
Are the tablets the proper slze and type? ❑ ❑ ■ ❑
Comment: Sodium Bisulfite for dechiorination
Are tablet de -chlorinators operational? ❑ ❑ ■ ❑
Number of tubes in use?
Comment:
Standby Power
Is automatically activated standby power available?
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
Was generator tested & operational during the inspection?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
Yes No NA NE
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Page# 4

Permit NC0079057 Owner - Facility: Manteo wwr
Inspection Date: 11/16/2022 Inspection Typo: Compliance Evaluation
Standby Power
Is there an emergency agreement with a fuel vendor for extended run on back-up
power?
Is the generator fuel level monitored?
Comment:
Influent Sampling
# Is composite sampling flow proportional?
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
degrees Celsius)?
Is sampling performed according to the permit?
Comment: The sampler is on constant time and volume
Yes No NA NE
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Yes No NA NE
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Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? ❑ /1 ❑ 0
Is sample collected below all treatment units? ® ❑ ❑ ❑
Is proper volume collected? • ❑ ❑ ❑
Is the tubing clean? • ❑ 0 ❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 ■ ❑ 0 ❑
degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type 1 ❑ 0 ❑
representative)?
Comment: The sampler is on constant time and volume.
Pumps-RAS-WAS Yes No NA NE
Are pumps in place? • 0 0 ❑
Are pumps operational? • ❑ 0 0
Are there adequate spare parts and supplies on site? • ❑ ❑ ❑
Comment:
Aeroblc Digester Yes No NA NE
Is the capacity adequate? ■ ❑ ❑ ❑
Is the mixing adequate? ❑ 0 ❑ II
Page# 5

Permit: NC0079057 Owner - Faculty: Manteo WWTP
Inspection Date: 11/18/2022 Inspection Type: Compliance Evaluation
Aerobic Digester
Is the site free of excessive foaming in the tank?
# Is the odor acceptable?
# Is tankage available for properly waste sludge?
Comment:
Effluent Pipe
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Comment:
Yes No NA NE
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Yes No NA NE
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Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit'? I ❑ 0 ❑
Is all required information readily available, complete and current? ■ 0 0 0
Are all records maintained for 3 years (lab. reg. required 5 years)? 0 ❑ ❑
Are analytical results consistent with data reported on DMRs? • ❑ ❑ ❑
Is the chain -of -custody complete? ■ ❑ 0 ❑
Dates, times and location of sampling ❑
Name of individual performing the sampling ❑
Results of analysis and calibration ❑
Dates of analysis ❑
Name of person performing analyses ❑
Transported COCs 0
Are DMRs complete: do they include all permit parameters? • 0 0 0
Has the facility submitted its annual compliance report to users and DWQ? • ❑ 0 0
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified ❑ 0 • ❑
operator on each shift?
Is the ORC visitation log available and current? MI 0 0 ❑
Is the ORC certified at grade equal to or higher than the facility classification? • ❑ 0 ❑
Is the backup operator certified at one grade less or greater than the facility IN 0 ❑ ❑
classification?
Is a copy of the current NPDES permit available on site? • 0 0 ❑
Facility has copy of previous year's Annual Report on file for review? •❑ ❑ 0
Page# 6

Permit: NC0079057 Owner - Feclltty: Manteo WWTP
Inapecbon Date: 11/16/2022 Inspection Type: Compliance Evaluation
Record Keeping Yes No NA NE
Comment: Everything was in place
Flow Measurement - Influent Yes No NA NF,
# Is flow meter used for reporting? 11 0 0 0
Is flow meter calibrated annually? 0 0 0 0
Is the flow meter operational? ® ❑ 0 0
(If units are separated) Does the chart recorder match the flow meter? 1 ❑ ❑ ❑
Comment:
Flow Measurement - Effluent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
Comment: Calibrated on 10/8/2021
Secondary Clarifier
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
Are weirs level?
Is the site free of weir blockage?
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
Is the retum rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the sludge blanket level acceptable? (Approximately % of the sidewall depth)
Comment:
Yes No NA NE
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Yes No NA NE
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Filtration (High Rate Tertiary) Yes No NA NE
Type of operation: Down flow
Is the filter media present'? 0 ❑ ❑ ❑
Page# 7

Permit NC0079057 Owner - Facility: Manta° WWTP
Inspection Date: 11/16/2022 Inspection Type: Compliance Evaluation
Filtration (High Rate Tertiary) Yes No NA NE
Is the filter surface free of clogging? ■ ❑ ❑ ❑
Is the filter free of growth? • 0 ❑ ❑
Is the air scour operational? 0 ❑ ❑ •
Is the scouring acceptable? 0 ❑ ❑ •
Is the clear well free of excessive solids and filter media? • ❑ ❑ ❑
Comment:
Sand Filters (Low rate)
(If pumps are used) Is an audible and visible alarm Present and operational?
Is the distribution box level and watertight?
Is sand filter free of ponding?
Is the sand filter effluent re -circulated at a valid ratio?
# Is the sand filter surface free of algae or excessive vegetation?
# Is the sand filter effluent re -circulated at a valid ratio? (Approximately 3 to 1)
Comment: Effluent looks good, cleared from any vegetation.
Yes No NA NE
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