NC0074756_Compliance Sampling Inspection_20220331

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
March 31, 2022
Mr. Duane Wingo, Utilities Director
Stanly County Department of Public Works
1000 North 1st Street
Albemarle, NC 28001
SUBJECT: Compliance Sampling Inspection
Badin WWTP
NPDES Permit NC0074756
Stanly County, NC
Mr. Wingo:
On March 29, 2022, Roberto Scheller of this Office conducted a compliance inspection at the
subject facilities. This inspection was conducted as a Compliance Sampling Inspection (CSI) to
ensure compliance with permit requirements and conditions. Toxicity samples will be collected
at later date. The subject facility appeared to be well operated, and we wish to thank the
operating staff for assistance regarding this inspection.
The enclosed report should be self-explanatory; however, should you have any questions,
please do not hesitate to contact myself or Roberto Scheller at [phone] or
roberto.scheller©ncdenr.gov.
Enclosure: CSI Report
GDE
NORTH C OLI .JA '
omm m�� ep..of o�.i
Sincerely,
DocuSigned by:
--A14CC681AF27425...
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611
919.707.9000

United States Environmental Protection Agency
EPA Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code
1 IN I 2 IL
21IIIIII
NPDES yr/mo/day Inspection
I 3 I NC0074756 111 121 22/03/29 117
Type
181l I
IIIIIIIIIII
Inspector Fac Type
191 s I 2011
IIIIIIIIIII IIIIIII I IIIIII
P6
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved
671 I 70I3 I 711 1 72 I N I 73I I 74 71
I I 1
I I I I I I I80
l
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Badin WWTP
NC Hwy 740 Off NCSR 1716
Badin NC 28009
Entry Time/Date
09:42AM 22/03/29
Permit Effective Date
19/11/01
Exit Time/Date
11:28AM 22/03/29
Permit Expiration Date
24/01/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Earl Pearson Almond/ORC/704-422-3564/
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Duane Wingo,1000 N St Ste 12 Albemarle NC 28001//704-986-3691/
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement Operations & Maintenar Records/Reports
Self -Monitoring Progran Sludge Handling DispoFacility Site Review Effluent/Receiving Wate
Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signa
Roberto Scheller
ure(s) of Inspector(s) Agency/Office/Phone and Fax Numbers
1- DocuSigned by:
S DWR/MRO WQ/707-235-2204/
Date
3/31/2022
,t&A..,
"-91C2A007838943E...
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
W. Corey Basinger DWR/Division of Water Quality/704-235-2194/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
DocuSigned by:
3/31/2022
Page# 1
"-A14CC681AF27425...

3I
NPDES yr/mo/day
N C0074756 111 121 22/03/29
I17
Inspection Type
18i i
(Cont.)
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Subject treatment facility in an existing 0.55 MGD WWTP consisting of manually cleaned bar screen,
influent pump station, oxidation ditch, 2-secondary clarifiers, aerobic sludge digester (middle ring of
oxidation ditch), chlorine contact chamber with gaseous disinfection and de -chlorination, cascade
post aeration, sludge drying beds (4), and stand -by -power. NPDES permit became effective on
November 1, 2019 and expires on January 31, 2024. Permitted discharge via outfall #001 is to Little
Mountain Creek which is classified as WS-IV waters in the Yadkin Pee -Dee River Basin.
A 12-month review of compliance history, from February 2021 through January 2022, found facility
reported (2) two Monthly Average Flow Limit exceedances in February 2021 and March 2021.
Review of Daily Flow data for the calendar year 2021 indicate spikes in flow during rain events. The
collection system to this facility should be inspected for Inflow and Inflitration (I&I) and corrections
made to divert stormwater from the sanitary sewer collection system.
Page# 2

Permit: NC0074756
Inspection Date: 03/29/2022
Owner - Facility: Badin WWTP
Inspection Type: Compliance Sampling
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ ME
application?
Is the facility as described in the permit? • ❑ El El
# 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: Current NPDES Permit issued on November 1, 2019 and expires on January 31, 2024.
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 MEI ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment:
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? • ❑ ❑ ❑
Is all required information readily available, complete and current? • ❑ ❑ ❑
Are all records maintained for 3 years (lab. reg. required 5 years)? • El El El
Are analytical results consistent with data reported on DMRs? • El El El
Is the chain -of -custody complete? • ❑ El El
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 ■
Are DMRs complete: do they include all permit parameters? • El El El
Has the facility submitted its annual compliance report to users and DWQ? •❑ El El
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified El El • El
operator on each shift?
Is the ORC visitation log available and current? • El El El
Is the ORC certified at grade equal to or higher than the facility classification? • El El El
Is the backup operator certified at one grade less or greater than the facility • El El El
classification?
Page# 3

Permit: NC0074756
Inspection Date: 03/29/2022
Owner - Facility: Badin WWTP
Inspection Type: Compliance Sampling
Record Keeping
Is a copy of the current NPDES permit available on site?
Facility has copy of previous year's Annual Report on file for review?
Comment:
Bar Screens
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Is disposal of screening in compliance?
Is the unit in good condition?
Comment:
Flow Measurement - Influent
# 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?
Yes No NA NE
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Yes No NA NE
•
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Yes No NA NE
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Comment: Flow meter claibrated on January 19, 2022. At time of inspection flow recorded at
0.260 MGD.
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: At time of inspection influent sampler was recorded at 4 degrees Celsius.
Pump Station - Influent
Is the pump wet well free of bypass lines or structures?
Yes No NA NE
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Yes No NA NE
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Page# 4

Permit: NC0074756
Inspection Date: 03/29/2022
Owner - Facility: Badin WWTP
Inspection Type: Compliance Sampling
Pump Station - Influent Yes No NA NE
Is the wet well free of excessive grease? • ❑ ❑ ❑
Are all pumps present? • ❑ ❑ ❑
Are all pumps operable? • ❑ ❑ ❑
Are float controls operable? ❑ ❑ ❑ •
Is SCADA telemetry available and operational? ❑ ❑ • ❑
Is audible and visual alarm available and operational? ❑ El • El
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 less 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/I)
Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes)
Comment:
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 return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth)
Comment: Sludge blanket was recorded at +3 feet.
Yes No NA NE
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Yes No NA NE
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Page# 5

Permit: NC0074756
Inspection Date: 03/29/2022
Owner - Facility: Badin WWTP
Inspection Type: Compliance Sampling
Disinfection -Gas
Are cylinders secured adequately?
Are cylinders protected from direct sunlight?
Is there adequate reserve supply of disinfectant?
Is the level of chlorine residual acceptable?
Is the contact chamber free of growth, or sludge buildup?
Is there chlorine residual prior to de -chlorination?
Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No.
7782-50-5)?
If yes, then is there a Risk Management Plan on site?
If yes, then what is the EPA twelve digit ID Number? (1000- - )
If yes, then when was the RMP last updated?
Comment: At time of inspection effluent chlorine residual measured at 24 ug/I.
De -chlorination
Type of system ?
Is the feed ratio proportional to chlorine amount (1 to 1)?
Is storage appropriate for cylinders?
# Is de -chlorination substance stored away from chlorine containers?
Comment:
Are the tablets the proper size and type?
Are tablet de -chlorinators operational?
Number of tubes in use?
Comment:
Yes No NA NE
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• ❑ ❑ ❑
• ❑ ❑ ❑
❑ ❑ • ❑
Yes No NA NE
Gas
▪ El El El
• ❑ ❑ ❑
❑ ❑ ■ ❑
❑ ❑ • ❑
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? • ❑ ❑ ❑
Is sample collected below all treatment units? • ❑ ❑ ❑
Is proper volume collected? ■ El El El
Is the tubing clean? • El El El
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 • ❑ El El
degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type • El El El
representative)?
Page# 6

Permit: NC0074756
Inspection Date: 03/29/2022
Owner - Facility: Badin WWTP
Inspection Type: Compliance Sampling
Effluent Sampling Yes No NA NE
Comment: At time of inspection effluent sampler recorded at 3.8 degrees Celsius.
Drying Beds Yes No NA NE
Is there adequate drying bed space? • ❑ ❑ ❑
Is the sludge distribution on drying beds appropriate? El El • El
Are the drying beds free of vegetation? • El El El
# Is the site free of dry sludge remaining in beds? • El El El
Is the site free of stockpiled sludge? • El El El
Is the filtrate from sludge drying beds returned to the front of the plant? • El El El
# Is the sludge disposed of through county landfill? • ❑ ❑ ❑
# Is the sludge land applied? El El • El
(Vacuum filters) Is polymer mixing adequate? El El • El
Comment: Drying beds were clear of any sludge. Application to dr jing beds done yearly.
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?
Yes No NA NE
❑ ❑ • ❑
Comment: Discharge into Little Mt. Creek was clear with no visible suspended solids or foam.
Page# 7