NC0087645_NOV2017PC0412_20170617

Water Resources
ENVIRONMENTAL QUALITY
June 28, 2017
CERTIFIED MAIL # 7012 2920 0000 3656 0762
RETURN RECEIPT REQUESTED
Mayor Michael Bryant
Town of Milton
P.O. Box 85
Milton, NC 27305-0085
SUBJECT: Notice of Violation
NOV-2017-PC-0412
Compliance Evaluation Inspection (CEI)
Town of Milton — WWTP
NPDES Permit # NCO087645
Caswell County
Dear Mayor Bryant:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. JAY ZIMMERMAN
Director
RECEIVEDINCDEQIDWR
jUL Q 6 2017
Water Quality.
ion
permitting
A Compliance Evaluation Inspection was performed on the subject facility by Min Xiao of this office on
June 26, 2017. Mr. Matt Smith, Operator in Responsible Charge (ORC), was present for the inspection.
The inspection is comprised of an overall evaluation in order to document compliance and noncompliance
of: facilities equipment, capability to meet effluent limits, and terms & conditions with the National
Pollutant Discharge Elimination System (NPDES) permit. The inspection findings are detailed below.
The underlined paragraph indicated the specific violation noted during this inspection.
I. Permit
The current NPDES permit expired on May 31, 2017. The Water Quality Permitting Section has received
the renewal application on January 18, 2017. A permit draft has been sent out for public comment.
H. Self -Monitoring Program
The DMRs were reviewed for the period April 2016 through March 2017. The facility was only found to
be non-compliant with monitoring frequency of Temperature in June 2016. Flow, pH, Temperature, and
Dissolved Oxygen are measured onsite by the operator. The rest of the parameters are tested by R&A Labs.
III. Facility Site Review
The 0.025 million gallons per day (MGD) treatment plant consists of the following components: a 9,400 -
gallon equalization tank with influent bar screen, dual 105 gallons per minute (GPM) equalization pumps,
flow splitter, 25,000 -gallon aeration tank with 320 ft2 of suspended media, clarifier with air-lift sludge
return pumps, UV disinfection, effluent flow meter, dual 3,000 -gallon sludge holding tanks, and a 36 kW
emergency generator.
It was noted the emergency generator had not been functional for a long time. This issue has been mentioned
during the inspections of 2015 and 2016, however, the problem hasn't been resolved vet. Per Part II Section
C. 2 (Proper Operation and Maintenances and 7 ower Failures) of the NPDES permit the permittee shall
at all times properly perate and maintain all facilities and systems of treatment and control which are
installed or used by the permittee to achieve compliance with the conditions of this permit and the permittee
State of North Carolina I Environmental Quality I Water Resources
450 West Hanes MITI Road, Suite 300, Winston-Salem, NC 27105
Phone- 336-776-98001 Intemet www,ncdenr.gov

is responsible for maintaining adequate safeguards to prevent the discharge of untreated or inadequately
treated wastes during electrical power failures.
Algae was present at the clarifier weir. One of the six UV bulbs was burned out at the time of inspection.
It was observed extra UV bulbs were stored onsite. Please replace the UV bulb with a new one.
It was suggested the ORC store Calcium Hypochlorite onsite as disinfection chemical in case of UV system
failure.
IV. Records & Reports
The ORC did a good job of keeping the paperwork. A comparison of January 2017 DMR with the field
records and laboratory results revealed that all the parameters have been transcribed correctly.
V. Flow Measurement
The NPDES permit requires continuous flow recording and an annual calibration The flow measuring
device was calibrated by R&A Labs on March 17, 2017.
VI. Effluent/Receiving Waters
The effluent to the Country Line Creek, Class C waters, was clear and no odor was noticed
VII. Upstream & Downstream Sampling
The location of upstream sampling is at least half mile away from the outfall. The downstream samples are
collected from Tom W. Buck Bridge on the Country Line Creek at Highway 57.
VIII. Action Items:
• Repair the emergency generator
• Replace the burned -out UV bulb
• Store back-up chemical onsite for disinfection (eg. Calcium Hypochlorite)
Please respond in writing within thirty (30) business days after receipt of this Notice, including the plan
and schedule for emergency generator repairing. A review of your response will be considered Please note
that, pursuant to G.S. 143 215.6A, a civil penalty of not more than twenty-five thousand dollars
($25,000.00) may be assessed 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
Should you have any questions concerning this report, please contact Min Xiao or me at [phone].
Sincerely,
``'r Sherri V Knight, PE, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
cc: Matt Smith ([e-mail])
Central Files
NPDES Unit
WSRO Files

t
United States Environmental Protection Agency
Form Approved
EPA Washington, D C 20460
OMB No 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-96
Section A National Data System Coding (I e , PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 U 2 15 1 3 I NCO087645 I11 12 17/06/26 17 18 L,j 19 1 c j 201
21111111111111111111111111111111111111111111 f6
Inspection Work Days Facility Self -Monitoring Evaluation Rating 131 QA ----------Reserved------
72 LNJ 73 174 751 III I I_ 80
67 70 LJ71 it—
Section B FacilityData
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
11 05AM 17/06/26
12/06/01
Milton WWTP
Doll Branch Rd
Exit Time/Date
Permit Expiration Date
Milton NC 27305
12 45PM 17/06/26
17/05/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
///
Matthew P Smith/ORC/336-414-8274/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Michael Behler,PO Box 85 Milton NC 27305//434-251-0097/
No
Section C Areas Evaluated During Inspection (Check only those areas evaluated)
Permit N Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program E Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
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
Min Xiao WSRO WQ//336769800/
�a Ow
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Data
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete
Page#

NPDES yr/mo/day Inspection Type
31 NCo0e7645 I11 12 17/06/26 I 17 18 ICI
Section D Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page#
I

4
U
Permit: NCO087645 Owner -Facility, MiltonWWrP
Inspection Date: 06/26/2017 Inspection Type. Compliance Evaluation
Yes No NA NE
Are records kept and maintained as required by the permit?
0
❑
Permit
Yes No NA NE
(If the present permit expires in 6 months or less) Has the permittee submitted anew
0
❑
❑
❑
application?
0
❑
❑
❑
Is the facility as described In the permit?
E
❑
❑
❑
# Are there any special conditions for the permit?
❑
0
❑
❑
Is access to the plant site restricted to the general public?
0
❑
❑
❑
Is the Inspector granted access to all areas for Inspection?
0
❑
❑
❑
Comment The current NPDES permit expired on May 31, 2017 The Water Quality Permitting Section
has received the renewal application on January 18, 2017
Record Keeping
Yes No NA NE
Are records kept and maintained as required by the permit?
0
❑
❑
❑
Is all required Information readily available, complete and current?
0
❑
❑
❑
Are all records maintained for 3 years (lab reg required 5 years)?
0
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
E
❑
❑
❑
Is the chain -of -custody complete?
E
❑
❑
❑
Dates, times and location of sampling
rest of the parameters are tested by R&A Labs
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?
E
❑
❑
❑
Has the facility submitted its annual compliance report to users and DWQ?
❑
❑
0
❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
❑
❑
❑
on each shift?
Is the ORC visitation log available and current?
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 classification?
0
❑
❑
❑
Is a copy of the current NPDES permit available on site?
0
❑
❑
❑
Facility has copy of previous year's Annual Report on file for review?
❑
❑
E
❑
Comment Flow, pH, Temperature, and Dissolved Oxygen are measured onsite by
the operator The
rest of the parameters are tested by R&A Labs
Bar Screens
Type of bar screen
Yes No NA NE
Page# 3

Permit: NCO087645
Owner -Facility Milton WWTP
# Is composite sampling flow proportional?
❑
❑
Inspection Date, 06/26/2017
Inspection Type: Compliance Evaluation
Is sample collected above side streams?
❑
❑
Bar Screens
Yes No NA NE
a Manual
0
❑
❑
❑
b Mechanical
❑
❑
N
❑
Are the bars adequately screening debris?
E
❑
❑
❑
Is the screen free of excessive debris?
0
❑
❑
❑
Is disposal of screening In compliance?
0
❑
❑
❑
Is the unit in good condition?
0
❑
❑
❑
Comment
Influent Sampling
Yes No NA NE
# Is composite sampling flow proportional?
❑
❑
0
❑
Is sample collected above side streams?
❑
❑
N
❑
Is proper volume collected?
N
❑
❑
❑
Is the tubing clean?
❑
❑
N
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6 0 degrees
E
❑
❑
❑
Celsius)?
0
❑
❑
❑
Is sampling performed according to the permit?
0
❑
❑
❑
Comment Influent samples were collected from an erect Influent pipe above the bar screen.
Equalization Basins
Yes No NA NE
Is the basin aerated?
0
❑
❑
❑
Is the basin free of bypass Imes or structures to the natural environment'?
0
❑
❑
❑
Is the basin free of excessive grease?
0
❑
❑
❑
Are all pumps present?
E
❑
❑
❑
Are all pumps operable?
E
❑
❑
❑
Are float controls operable?
0
❑
❑
❑
Are audible and visual alarms operable?
S
❑
❑
❑
# Is basin size/volume adequate?
0
❑
❑
❑
Comment. Dual pumps, only with a visual alarm The visual alarm was tested to be functional.
Aeration Basins
Mode of operation
Type of aeration system
Is the basin free of dead spots?
Yes No NA NE
Ext Air
Diffused
■ ❑ ❑ ❑
Page# 4
A

i
5
Permit- NCO087645
Inspection Date: 06/26/2017
Owner -Facility- Milton WWTP
Inspection Type- Compliance Evaluation
Is the clarifier free of black and odorous wastewater?
K
❑
Aeration Basins
Yes No NA NE
Are surface aerators and mixers operational?
❑
❑
0
❑
Are the diffusers operational?
0
❑
❑
❑
Is the foam the proper color for the treatment process?
0
❑
❑
❑
Does the foam cover less than 25% of the basin's surface?
0
❑
❑
❑
Is the DO level acceptable?
❑
❑
❑
0
Is the DO level acceptable?(1 0 to 3 0 mg/1)
❑
❑
❑
0
Comment
Secondary Clarifier
Yes No NA NE
Is the clarifier free of black and odorous wastewater?
K
❑
❑
❑
Is the site free of excessive buildup of solids in center well of circular clarifier?
❑
❑
0
❑
Are weirs level?
N
❑
❑
❑
Is the site free of weir blockage?
0
❑
❑
❑
Is the site free of evidence of short-circuiting?
0
❑
❑
❑
Is scum removal adequate?
0
❑
❑
❑
Is the site free of excessive floating sludge?
0
❑
❑
❑
Is the drive unit operational?
❑
❑
0
❑
Is the return rate acceptable (low turbulence)?
E
❑
❑
❑
Is the overflow clear of excessive solids/pin floc?
❑
❑
❑
Is the sludge blanket level acceptable? (Approximately % of the sidewall depth)
❑
❑
❑
Comment Algae was present at the clarifier weir
Disinfection - UV
Yes No NA NE
Are extra UV bulbs available on site?
N
❑
❑
❑
Are UV bulbs clean?
❑
❑
❑
0
Is UV Intensity adequate?
❑
❑
❑
N
Is transmittance at or above designed level?
❑
❑
❑
Is there a backup system on site?
❑
❑
❑
Is effluent clear and free of solids?
❑
❑
❑
Comment, One of the six UV bulbs was burned out at the time of inspection It was observed extra UV
bulbs were stored onsite.
Flow Measurement - Effluent Yes No NA NE
# Is flow meter used for reporting? 0 ❑ ❑ ❑
Page# 5

Permit. NCO087645 Owner -Facility:
Milton WWTP
downstream samples are collected from Tom W Buck Bridge on the Country
Inspection Date: 06/26/2017 Inspection Type-
Compliance Evaluation
Highway 57
Flow Measurement - Effluent
Yes No NA NE
Is flow meter calibrated annually?
Standby Power
❑
❑
❑
Is the flow meter operational?
❑
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
0
❑
❑
❑
Comment. The NPDES permit reaulres continuous flow recordina and an annual calibration The flow
measuring device was calibrated by R&A Labs on March 17, 2017
Upstream / Downstream Samolinp Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, and N ❑ ❑ ❑
sampling location)?
Comment The location of upstream sampling is at least half mile away from the outfall The
downstream samples are collected from Tom W Buck Bridge on the Country
Line Creek at
Highway 57
Standby Power
Yes No NA NE
Is automatically activated standby power available',
0
❑
❑
❑
Is the generator tested by interrupting primary power source?
❑
0
❑
❑
Is the generator tested under load?
❑
M
❑
❑
Was generator tested & operational during the inspection?
❑
0
❑
❑
Do the generator(s) have adequate capacity to operate the entire wastewater site?
0
❑
❑
❑
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
❑
❑
❑
0
Is the generator fuel level monitored?
❑
❑
❑
0
Comment It was noted the emeraencv aenerator had not been functional for a Iona time This issue
has been mentioned during the Insaections of 2015 and 2016, however, the problem hasn't
been resolved yet
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? N ❑ ❑ ❑
Does the facility analyze process control parameters, for ex MLSS, MCRT, Settleable M ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment It appears the ORC operates the plant well.
Page# 6
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