NC0020591_Inspection_20190201

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
Mr. Andy Smith
Operations Manager/Water Resources
City of Statesville
Post Office Box 1111
Statesville, North Carolina 28687
Dear Mr. Smith:
NORTH CAROLINA
Environmental Quality
1 February 2019
Subject: Compliance Evaluation Inspection
City of Statesville/Third Creek WWTP
NPDES Permit No. NCO020591
Iredell County
Enclosed is a copy of the Compliance Evaluation Inspection Report for the inspection conducted at the subject facility on
January 31, 2019, by Mr. Wes Bell of this Office. Please inform the facility's Operator -in -Responsible Charge (ORC) of our
findings by forwarding a copy of the enclosed report.
The report should be self-explanatory; however, should you have any questions concerning this report, please do
not hesitate to contact Mr. Bell at [phone] or at wes.bell(cr�,ncdenr.gov.
Sincerely,
EA
DocuSigned by:
y414CW 4i P; Utz
F161FB69A2D84A3...
for W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Enclosure:
Inspection Report
D Q
� North Carolina Department of Environmental Quality I Division of Water Resources
Mooresville Regional Office 1 610 East Center Avenue, Suite 301 1 Mooresville, North Carolina 28115
NORTH CAROLINA
Da"MoM a enWmn�bl mwnq 704,663.1699

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 NCO020591 111 12 I 19/01/31 I17 18 I S i 19 i G i 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 B1 QA ---------------------- Reserved -------------------
67
2.0 70 Id I 71 [.. I 72 73 L_LJ74 751 I I I I I I I80
I —I u
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)
09:25AM 19/01/31
12/06/01
Third Creek WWTP
444 Third Creek Rd
Exit Time/Date
Permit Expiration Date
Statesville NC 28687
11:30AM 19/01/31
14/06/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Scott Austin/ORC/704-878-3438/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Todd A Smith,PO Box 1111 Statesville INC 28687/Operations Manager/704-878-3438/
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Laboratory
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
cuSigned by:
MRO WQ//704-663-1699 Ext.2192/ 1/31/2019
24&
Wes Bell E�:
96D90CC3437...
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Num DocuSigned by: Date
A*-. a H p`l"ft
Andrew Pitner MRO WQ//704-663-1699 Ext.21 80 1/31/19
1`161 FB69AMUA3...
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type
NCO020591 I11 121 19/01/31 117 18 JCJ
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page#

Permit: NCO020591 Owner - Facility: Third Creek WWTP
Inspection Date: 01/31/2019 Inspection Type: Compliance Evaluation
Permit
Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
0
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application?
Is the facility as described in the permit?
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0
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# Are there any special conditions for the permit?
0
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Is access to the plant site restricted to the general public?
0
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Is the inspector granted access to all areas for inspection?
0
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Comment: The Dermit renewal Dackaae was received by the Division on 2/23/12.
The facility description will need to be updated during the permit renewal process to include
all approved WWTP upgrades to 6 MGD.
The City of Statesville implements an approved Industrial Pretreatment Program.
The last compliance evaluation inspection was performed by DWR staff on 4/6/17.
Record Keeping
Yes No NA NE
Are records kept and maintained as required by the permit?
0
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Is all required information readily available, complete and current?
0
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Are all records maintained for 3 years (lab. reg. required 5 years)?
0
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Are analytical results consistent with data reported on DMRs?
0
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Is the chain -of -custody complete?
0
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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?
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Has the facility submitted its annual compliance report to users and DWQ?
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(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
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on each shift?
Is the ORC visitation log available and current?
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Is the ORC certified at grade equal to or higher than the facility classification?
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Is the backup operator certified at one grade less or greater than the facility classification?
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Is a copy of the current NPDES permit available on site?
0
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Facility has copy of previous year's Annual Report on file for review?
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Page# 3

Permit: NCO020591
Inspection Date: 01/31/2019
Record Keeping
Owner - Facility: Third Creek WWTP
Inspection Type: Compliance Evaluation
Yes No NA NE
Comment: The records reviewed durinq the inspection were organized and well maintained. Discharge
Monitoring Reports (edmrs) were reviewed for the period January 2018 through December
2018. No effluent limit violations were reported and the facility complied with all
permit -required monitoring frequencies.
Laboratory
Yes No NA NE
Are field parameters performed by certified personnel or laboratory?
0
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Are all other parameters(excluding field parameters) performed by a certified lab?
0
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# Is the facility using a contract lab?
0
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# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
0
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Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ 0 ❑
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ ❑ 0 ❑
Comment: Influent and effluent analyses are performed by the City's Fourth Creek WWTP Laboratory
(Certification #181). Meritech, Inc. (low level mercury and toxicity) has also been contracted
to provide analytical support. The laboratory instrumentation used for field analyses
appeared to be properly calibrated/verified.
Influent Sampling
Yes No NA NE
# Is composite sampling flow proportional?
M
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Is sample collected above side streams?
0
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Is proper volume collected?
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Is the tubing clean?
0
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# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
0
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Celsius)?
Is sampling performed according to the permit?
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Comment: The subject permit requires influent BOD and TSS composite samples. The composite
sampler was collecting 150 ml. aliquots and the internal sampler temperatures was less
than three degrees Celsius at the time of the inspection. The facility staff perform daily
checks and monthly calibrations (at a minimum) on the sampler.
Effluent Sampling
Is composite sampling flow proportional?
Is sample collected below all treatment units?
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)?
Yes No NA NE
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Page# 4

Permit: NCO020591 Owner - Facility: Third Creek WWTP
Inspection Date: 01/31/2019 Inspection Type: Compliance Evaluation
Effluent Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑
representative)?
Comment: The subiect Dermit reauires composite and arab effluent samples. The composite samDler
was collecting 150 ml. aliquots and the internal sampler temperatures was less than two
degrees Celsius at the time of the inspection. The facility staff perform daily checks and
monthly calibrations (at a minimum) on the sampler.
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, and ❑ ❑ ❑
sampling location)?
Comment: The Division has conditionallv waived the instream monitorina reauirements due to the Citv's
participation in the Yadkin -Pee Dee River Basin Association.
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 ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: The wastewater treatment facilitv appeared to be properly operated and well maintained
The ORC and staff implement a comprehensive process control program with all
measurements being properly documented and maintained on -site.
The facility is equipped with a SCADA system to assist the wastewater staff with the
facility's operations.
Bar Screens
Yes No NA NE
Type of bar screen
a.Manual
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b.Mechanical
Are the bars adequately screening debris?
0
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Is the screen free of excessive debris?
0
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Is disposal of screening in compliance?
0
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Is the unit in good condition?
0
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Comment:
Pump Station - Influent
Yes No NA NE
Is the pump wet well free of bypass lines or structures?
0
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Is the wet well free of excessive grease?
0
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Are all pumps present?
0
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Are all pumps operable?
0
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Page# 5

Permit: NCO020591
Owner - Facility: Third Creek WWTP
Inspection Date: 01/31/2019
Inspection Type: Compliance Evaluation
Pump Station - Influent
Yes No NA NE
Are float controls operable?
0
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Is SCADA telemetry available and operational?
0
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Is audible and visual alarm available and operational?
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0
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Comment:
Grit Removal
Yes
No
NA
NE
Type of grit removal
a.Manual
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b.Mechanical
Is the grit free of excessive organic matter?
0
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Is the grit free of excessive odor?
0
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# Is disposal of grit in compliance?
0
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Comment: Screenings and grit are disposed at the County Landfill.
Oxidation Ditches
Yes No NA NE
Are the aerators operational?
0
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Are the aerators free of excessive solids build up?
0
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# Is the foam the proper color for the treatment process?
0
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Does the foam cover less than 25% of the basin's surface?
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Is the DO level acceptable?
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Are settleometer results acceptable (> 30 minutes)?
0
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Is the DO level acceptable?(1.0 to 3.0 mg/1)
0
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Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes)
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0
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Comment: Both oxidation ditches were oDerational: however. one ditch was in service due to low
influent flows. Each oxidation ditch is equipped with anaerobic and anoxic basins (all
operational). Facility staff continue to add animal feed and a microbial nutrient as
food/nutrient supplements due to the low influent loading. Sodium bicarbonate is also added
on as as -needed basis to maintain appropriate alkalinity/pH levels.
Secondary Clarifier
Yes No NA NE
Is the clarifier free of black and odorous wastewater?
0
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Is the site free of excessive buildup of solids in center well of circular clarifier?
0
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Are weirs level?
0
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Is the site free of weir blockage?
0
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Page# 6

Permit: NC0020591 Owner - Facility:
Inspection Date: 01/31/2019 Inspection Type:
Third Creek WWTP
Compliance Evaluation
Secondary Clarifier
Yes No NA NE
Is the site free of evidence of short-circuiting?
0
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Is scum removal adequate?
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Is the site free of excessive floating sludge?
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Is the drive unit operational?
N
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Is the return rate acceptable (low turbulence)?
0
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Is the overflow clear of excessive solids/pin floc?
0
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Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth)
0
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Comment: Both secondary clarifiers were operational: however. only one clarifier was in service due to
low influent flows.
Pumps-RAS-WAS
Yes No NA NE
Are pumps in place?
0
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Are pumps operational?
0
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Are there adequate spare parts and supplies on site?
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Comment:
Disinfection -Liquid
Yes No NA NE
Is there adequate reserve supply of disinfectant?
0
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(Sodium Hypochlorite) Is pump feed system operational?
M
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Is bulk storage tank containment area adequate? (free of leaks/open drains)
0
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Is the level of chlorine residual acceptable?
0
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Is the contact chamber free of growth, or sludge buildup?
0
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Is there chlorine residual prior to de -chlorination?
0
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Comment: The total residual chlorine levels in the chlorine contact basin are checked on a daily basis.
De -chlorination
Yes No NA NE
Type of system ?
Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
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M
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Is storage appropriate for cylinders?
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0
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# Is de -chlorination substance stored away from chlorine containers?
0
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Are the tablets the proper size and type?
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0
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Comment: The facility is equipped with two storage tanks and chemical feed pumps for the sodium
bisulfite. Containment is adequate and no leaks/spills were observed.
Are tablet de -chlorinators operational? ❑ ❑ 0 ❑
Page# 7

Permit: NC0020591
Inspection Date: 01/31/2019
De -chlorination
Number of tubes in use?
Comment:
Owner - Facility: Third Creek WWTP
Inspection Type: Compliance Evaluation
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?
Yes No NA NE
Yes No NA NE
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Comment: The flow meters (influent and effluent) are calibrated twice per year and were last calibrated
on 9/6/18 by Carolina Technical Services, Inc.
Effluent Pipe
Yes No NA NE
Is right of way to the outfall properly maintained?
0
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Are the receiving water free of foam other than trace amounts and other debris?
0
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If effluent (diffuser pipes are required) are they operating properly?
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0
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Comment: The effluent appeared tea -colored with no floatable solids or foam. The receiving stream did
not appear to be negatively impacted.
Aerobic Digester
Is the capacity adequate?
Is the mixing adequate?
Is the site free of excessive foaming in the tank?
# Is the odor acceptable?
# Is tankage available for properly waste sludge?
Comment: Both digesters are equipped with surface aeration.
Solids Handling Equipment
Is the equipment operational?
Is the chemical feed equipment operational?
Is storage adequate?
Is the site free of high level of solids in filtrate from filter presses or vacuum filters?
Is the site free of sludge buildup on belts and/or rollers of filter press?
Is the site free of excessive moisture in belt filter press sludge cake?
The facility has an approved sludge management plan?
Yes No NA NE
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Page# 8

Permit: NCO020591
Inspection Date: 01/31/2019
Solids Handling Equipment
Owner - Facility: Third Creek WWTP
Inspection Type: Compliance Evaluation
Yes No NA NE
Comment: The facilitv is eauiDDed with two belt Dresses. One of the belt Dresses was in the Drocess of
being repaired.
Dewatered bio-solids are transported (by City staff) to the Fourth Creek WWTP for further
processing and distribution (Sta-Lime) under the authority of Permit No. WQ0006245. The
City also has a Land Application Permit (WQ0014543) as a back-up disposal option.
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?
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
Is the generator fuel level monitored?
Yes No NA NE
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Comment: Both standby generators were operational and in service. The generators are put under load
once every ten days (at a minimum) and serviced quarterly by a contracted company.
Page# 9