NC0087033_NOD-2020-PC-0436_20200825

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
The Honorable D. Lee Matney, Mayor
Town of Harmony
Post Office Box 118
Harmony, North Carolina 28634
Dear Mayor Matney:
NORTH CAROLINA
Environmental Quality
August 25, 2020
Subject: Notice of Deficiency
Compliance Evaluation Inspection
Town of Harmony WWTP
NPDES Permit No. NCO087033
Iredell County
Tracking #: NOD-2020-PC-0436
Enclosed is a copy of the Compliance Evaluation Inspection Report for the inspection conducted at the subject
facility on August 18, 2020, 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.
This report is being issued as a Notice of Deficiency (NOD) due to the following:
- One UV display box (shows intensity, hours, etc.) was not operational and the information on the second
UV display box could not be observed;
- The visual indicators (on/off status) were not operational on all UV lamps.
Please be advised that the failure to properly maintain the wastewater treatment facility is a violation of the
subject NPDES Permit and North Carolina General Statute (G.S.) 143-215.1 as detailed in the UV Disinfection
Section of the attached report. Please be advised that G.S. 143-215.6A provides for a civil penalty assessment of
not more than twenty-five thousand dollars ($25,000.00), or twenty-five thousand dollars ($25,000.00) per day
when the violation is of a continuing nature, against any person who violates or fails to act in accordance with the
terms, conditions, or requirements of any permit issued pursuant to G.S. 143-215.1. Penalties may also be assessed
for any damage to surface waters of the State that may result from the violations.
It is requested that a written response be submitted to this Office by September 15, 2020, detailing the actions
taken to address the maintenance issues noted on the UV disinfection system. In responding, please address your
comments to the attention of Mr. Wes Bell.
�� Office
Carolina Department of Environmental Quality I Division of Water Resources
Mooresville Regional 1 610 East Center Avenue, Suite 301 1 Mooresville, North Carolina 28115
NOR7H ORROLINA i
�,"rJ J m Em^'m'"^e^ai Qmli /`� 704.663.1699

Mayor D. Lee Matney
Page Two
August 25, 2020
Should you have any questions concerning this letter, please do not hesitate to contact Mr. Bell at (704) 235-
2192, or via email at wes.bell(a-),ncdenr.gov.
Sincerely,
DocuSigned by:
A14CC681 AF27425...
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Enclosure:
Inspection Report

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 1 2 u 3 I NC0087033 111 121 20/08/18 I17 18 LC] I 19 I s I 20L]
21IIIIII IIIIIIIIIII IIIIIII I IIIIII I11111111II r6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA----------------------Re� served-------------------
67
2.0 701d —I I 71 I„ tyI I I 72 I r., I 71 I 74 7SI 1 1 1 1 L �80
LL-1
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 Dermit Number)
11:57AM 20/08/18
19/05/01
Harmony WWTP
125 Windmill Ct
Exit Time/Date
Permit Expiration Date
Harmony NC 28634
02:OOPM 20/08/18
23/11/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Steven L Lambert/ORC/704-546-2602/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Daniel Lee Matney,PO Box 118 Harmony NC 28634//704-546-2339/
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenar Records/Reports
Self -Monitoring Progran 0 Sludge Handling Dispo: Facility 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 Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Wes Bell Docusigned by: DWR/MRO WQ/704-663-1699 Ext.2192/
8/24/2020
Bwi
A61696D90CC3437...
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:
' 8/25/2020
A14CC681AF27425... Page#

NPDES yr/mo/day Inspection Type
NCO087033 I11 12I 20/08/18 117 18 i c i
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page#

Permit: NCO087033 Owner -Facility: Harmony WWTP
Inspection Date: 08/18/2020 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
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0
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application?
Is the facility as described in the permit?
0
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# Are there any special conditions for the permit?
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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 last compliance evaluation inspection at this facility was performed by DWR staff on
8/15/18.
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 operatc
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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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0
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Page# 3

Permit: NCO087033 Owner -Facility: Harmony WWTP
Inspection Date: 08/18/2020 Inspection Type: Compliance Evaluation
Record Keeping Yes No NA NE
Comment: The records reviewed during the inspection were organized and well maintained. Discharge
Monitoring Reports (eDMRs) were reviewed for the period July 2019 through June 2020. All
monitoring frequencies were correct. A weekly average effluent fecal coliform violation was
reported in March 2020. The Division has separately addressed this limit violation through
the issuance of a Notice of Violation (NOV).
The December 2019 and February 2020 through June 2020 eDMRs will be revised and
resubmitted to remove the "0" ug/L values in the TRC column. The facility does not use
chlorine; therefore, no values should be placed in this column.
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
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0
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Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
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0
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Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
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M
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Comment: On -site field analyses (dissolved oxygen, pH and temperature) are performed under the
Town's field laboratory certification #5605. Statesville Analytical (Certification #440) has alsc
been contracted to provide analytical support for all effluent analyses except field.
Influent Sampling
Yes
No
NA NE
# Is composite sampling flow proportional?
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0
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Is sample collected above side streams?
0
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Is proper volume collected?
0
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Is the tubing clean?
M
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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?
0
❑
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Comment: The subiect Dermit reauires influent BOD and TSS influent composite samples. The Town
was approved to collect time -based composite samples by the Division on 2/24/12
(Compliance Evaluation Inspection report date). Weekly sampler aliquot checks are
performed and documented. The aliquot volume was initially below 100 mis. during the
on -site inspection; however, the ORC corrected the sampler program to ensure a minimum
of 100 mils per aliquot will be collected during future sampling events. Note: The facility was
not sampling during the inspection.
Effluent Sampling
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Yes
No
NA
NE
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•
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Page# 4

Permit: NCO087033 Owner -Facility: Harmony WWTP
Inspection Date: 08/18/2020 Inspection Type: Compliance Evaluation
Effluent Sampling Yes No NA NE
Is proper volume collected?
0
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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 the facility sampling performed as required by the permit (frequency, sampling type
0
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❑
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representative)?
Comment: The subject permit requires composite and grab effluent samples. Weekly
sampler aliquot
checks are performed and documented.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑
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 facility appeared to be adequately treating wastewater at the time
of the inspection. Process control measurements were being documented and maintained
on -site.
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:
Equalization Basins
Is the basin aerated?
Is the basin free of bypass lines or structures to the natural environment?
Is the basin free of excessive grease?
Are all pumps present?
Are all pumps operable?
Are float controls operable?
Are audible and visual alarms operable?
Yes No NA NE
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Yes No NA NE
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Page# 5

Permit: NCO087033 Owner -Facility: Harmony WWTP
Inspection Date: 08/18/2020 Inspection Type: Compliance Evaluation
Equalization Basins Yes No NA NE
# Is basin size/volume adequate? 0 ❑ ❑ ❑
Comment:
Aeration Basins
Yes
No
NA
NE
Mode of operation
Ext. Air
Type of aeration system
Diffused
Is the basin free of dead spots?
0
❑
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Are surface aerators and mixers operational?
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0
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Are the diffusers operational?
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?
0
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Is the DO level acceptable?
0
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Is the DO level acceptable?(1.0 to 3.0 mg/1)
0
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Comment: Soda ash is added on an as -needed basis to maintain appropriate alkalinity/pH levels.
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)
Yes No NA NE
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■
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■
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N
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Comment: The sludge blanket in the #2 train clarifier needed to be lowered and excessive floating solid
was observed in the #1 train clarifier. Although no excessive solids were observed going
over the clarifier weirs, the ORC and staff must ensure floating solids are kept at a minimum
and the sludge blankets are properly maintained.
Filtration (High Rate Tertiary)
Type of operation:
Yes No NA NE
Cross flow
Page# 6

Permit: NCO087033
Inspection Date: 08/18/2020
Owner -Facility: Harmony WWTP
Inspection Type: Compliance Evaluation
Filtration (High Rate Tertiary)
Yes
No
NA
NE
Is the filter media present?
0
❑
❑
❑
Is the filter surface free of clogging?
0
❑
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Is the filter free of growth?
0
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Is the air scour operational?
❑
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0
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Is the scouring acceptable?
0
❑
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Is the clear well free of excessive solids and filter media?
❑
❑
0
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Comment:
Disinfection - UV
Yes
No
NA NE
Are extra UV bulbs available on site?
0
❑
❑
❑
Are UV bulbs clean?
0
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❑
Is UV intensity adequate?
❑
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Is transmittance at or above designed level?
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Is there a backup system on site?
0
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Is effluent clear and free of solids?
M
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Comment: One of the UV disDlav boxes (shows intensitv. hours. etc.) was not operational and the
second UV display box was difficult to view. In addition, the visual indicators (on/off status)
on all UV lamps were not operational. The the UV display boxes and lamp status indicators
must be repaired/replaced. Please be advised that the subject permit requires the permittee
to properly operate and maintain the facility at all times rPermit Condition Reference: Part II,
Section C(2) Proper Operation and Maintenance].
Flow Measurement - Effluent
Yes
No
NA
NE
# Is flow meter used for reporting?
0
❑
❑
❑
Is flow meter calibrated annually?
0
❑
❑
❑
Is the flow meter operational?
0
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
0
❑
Comment: The flow meter is calibrated annually and was last calibrated on 10/22/19 by Horizon
Engineering & Consulting, Inc.
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: The effluent appeared clear with trace suspended solids and no foam.
Yes No NA NE
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Page# 7

Permit: NC0087033
Inspection Date: 08/18/2020
Owner -Facility: Harmony WWTP
Inspection Type: Compliance Evaluation
Aerobic Digester
Yes
No
NA
NE
Is the capacity adequate?
0
❑
❑
❑
Is the mixing adequate?
0
❑
❑
❑
Is the site free of excessive foaming in the tank?
0
❑
❑
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# Is the odor acceptable?
M
❑
❑
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# Is tankage available for properly waste sludge?
0
❑
❑
❑
Comment: Wastewater solids are removed from the aerated sludge holding tank by Myers Septic Tank
Service and disposed at the North Wilkesboro WWTP.
Standby Power
Yes
No
NA
NE
Is automatically activated standby power available?
0
❑
❑
❑
Is the generator tested by interrupting primary power source?
0
❑
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Is the generator tested under load?
M
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Was generator tested & operational during the inspection?
0
❑
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Do the generator(s) have adequate capacity to operate the entire wastewater site?
0
❑
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Is there an emergency agreement with a fuel vendor for extended run on back-up power?
0
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Is the generator fuel level monitored?
0
❑
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❑
Comment:
Page# 8