NC0087645_Compliance Evaluation Inspection_20230724

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
July 24, 2023
Certified Mail #: 7019 1120 0001 5505 1718
Return Receipt Requested
Patricia Williams, Mayor
Town of Milton
PO Box 85
Milton, NC 27305-0085
Subject: Compliance Evaluation Inspection with Notice of Violation & Intent to
Assess Civil Penalty
Tracking Number: NOV-2023-PC-0400
Permit Number: NCO087645
Milton WWTP
Caswell County
Dear Ms. Williams:
On June 7, 2023, Division of Water Resources (DWR) Winston-Salem Regional Office (WSRO)
staff Jesse Barnes conducted a routine compliance evaluation inspection at the Milton WWTP in
reference to NPDES permit NC0087645. ORC Matthew Smith was present during the inspection.
A review of records, data, operations, maintenance, sampling, treatment components, and
structures was completed. This review reflected noncompliance with the subject permit. The
determined permit violation(s) and item(s) of concern are listed below. Inspection findings are
detailed in the attached Water Compliance Inspection Report.
Permit Violations
1. No records for field thermometer NIST-traceability, calibration, or verification using a NIST-
traceable device were available. Part II, Section D. (6.) of the subject permit requires
that the permittee retain all calibration records for at least three years. Please see the
attached approved procedure for the analysis of temperature by the North Carolina
Wastewater/Groundwater Laboratory Certification Branch for requirements related to the
calibration, verification, and NIST-traceabili of temperature -measuring devices.
2. According to the provided records, the effluent flow meter was last calibrated June 30,
2021. Part II, Section D. (3.) of the subject permit requires flow measurement devices
to be calibrated at a minimum of once per year.
3. Due to the lack of a properly maintained right of way to the outfall, upstream sampling has
not been conducted at the location specified by the subject permit. Part I, Section A.
(1.) of the subject permit designates the upstream sampling location as 20 feet upstream
from the outfall. Part II, Section D. (1.) of the subject permit requires that all samples
shall be taken at the monitoring points specified in the permit.
DffNorth Carolina Department of Environmental Quality I Division of Water Resources
oan caaouNn
Winston-Salem Regional Office 1 450 W. Hanes Mill Rd, Suite 300 I Winston-Salem, North Carolina 27105
M336.776.9800
oep.m.m or em..nmen� Qualm

4. The influent manual bar screen was severely corroded with portions of bars corroded away
and/or missing, and therefore unable to adequately screen debris. Part II, Section C.
(2.) of the subject permit requires that all facilities and systems of treatment and control
(and related appurtenances) which are installed or used by the permittee shall be properly
operated and maintained at all times.
5. The equalization basin audible and visual alarms were tested during the inspection and
found to be nonfunctional. Part II, Section C. (2.) of the subject permit requires that all
facilities and systems of treatment and control (and related appurtenances) which are
installed or used by the permittee shall be properly operated and maintained at all times.
Items of Concern
1.
A copy of the current NPDES permit was not available on site during the inspection.
2.
Theequalization basin structure had significant visible corrosion.
3.
Duckweed was observed covering approximately 15% of the surface of the clarifier.
4.
Some solids, duckweed, and other vegetation were observed partially blocking the clarifier
overflow weirs.
5.
When tested during the inspection, the generator appeared to operate properly for
approximately 10 minutes, then malfunctioned and had to be manually restarted by the
operator.
6.
A right of way to the outfall had not been properly maintained.
Please be aware that the Division may take enforcement action against any individual who fails
to comply with the requirements of all applicable permits, regulations, and/or statutes. Pursuant
to NC General Statute (NCGS) 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, or applicable regulations, issued
pursuant to G.S. 143-215.1.
Please reply, in writing, to this notice of violation within ten (10) business days after receipt. Your
written response must address each violation listed above and provide your intended remedial
actions, with estimated completion dates, for each violation. A review of your response will be
considered along with any additional information provided. You will then be notified of any civil
penalties that may be assessed regarding the violations.
If you have any questions or concerns, please do not hesitate to contact Jesse Barnes with the
Water Quality Regional Operations Section in the Winston-Salem Regional Office by phone at
336-776-9701, or by email at [e-mail].
Sincerely,
DocuSigned by:
OD2D3CE3F1 B7456...
Jennifer F. Graznak, Assistant Regional Supervisor
Water Quality Regional Operations Section
Winston-Salem Regional Office
Division of Water Resources, NCDEQ
Attachments:
1. Water Compliance Inspection Report, NCO087645
North Carolina Department of Environmental Quality I Division of Water Resources
D ��� Winston-Salem Regional Office 1 450 W. Hanes Mill Rd, Suite 300 1 Raleigh, North Carolina 27105
NCRTH CARCLINA ^ 336.776.9800
0_p Mo Emimnmen quay

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 NCO087645 I11 121 23/06/07 I17 18I � I 19 I s I 201 I
211IIIII 111111III II III III1 I I IIIII IIIIIIIII II r6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
67
I 72 I ni I 71 I 74 79 I I I I I I I80
701 I 71 I LL -1 I I
LJ
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)
10:30AM 23/06/07
23/03/01
Milton WWTP
Doll Branch Rd
Exit Time/Date
Permit Expiration Date
Milton NC 27305
12:OOPM 23/06/07
27/05/31
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 273050085//434-251-0097/
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
Jesse Barnes DocuSigned by: DWR/WSRO WQ/336-776-9701/ 7/24/2023
41797473D3194ED...
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
DocuSigned by:
�� DwR/WSRo 336-776-9695 7/24/2023
'_6
2D3 F1B Z456
EPA Form 3560-3 (Rev VY4' NreViou, editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type
NCO087645 I11 12I 23/06/07 117 18 i c i
(Cont.)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
On June 7, 2023, Division of Water Resources (DWR) Winston-Salem Regional Office (WSRO) staff
Jesse Barnes conducted a routine compliance evaluation inspection at the Milton WWTP in reference
to NPDES permit NC0087645. ORC Matthew Smith was present during the inspection. A review of
records, data, operations, maintenance, sampling, treatment components, and structures was
completed. This review reflected noncompliance with the subject permit.
The following violations were noted:
1. No records for field thermometer calibration were available. Part II, Section D. (6.) of the subject
permit requires that the permittee retain all calibration records for at least three years. Please see the
attached approved procedure for the analysis of temperature by the North Carolina
Wastewater/Groundwater Laboratory Certification Branch for requirements related to the calibration,
verification, and NIST-traceability of temperature -measuring devices.
2. According to the provided records, the effluent flow meter was last calibrated June 30, 2021. Part
II, Section D. (3.) of the subject permit requires flow measurement devices to be calibrated at a
minimum of once per year.
3. Due to the lack of a properly maintained right of way to the outfall, upstream sampling has not
been conducted at the location specified by the subject permit. Part I, Section A. (1.) of the subject
permit designates the upstream sampling location as 20 feet upstream from the outfall. Part II,
Section D. (1.) of the subject permit requires that all samples shall be taken at the monitoring points
specified in the permit.
4. The influent manual bar screen was severely corroded with portions of bars corroded away
and/or missing, and therefore unable to adequately screen debris. Part II, Section C. (2.) of the
subject permit requires that all facilities and systems of treatment and control (and related
appurtenances) which are installed or used by the permittee shall be properly operated and
maintained at all times.
5. The equalization basin audible and visual alarms were tested during the inspection and found to
be nonfunctional. Part II, Section C. (2.) of the subject permit requires that all facilities and systems
of treatment and control (and related appurtenances) which are installed or used by the permittee
shall be properly operated and maintained at all times.
The following items of concern were noted:
1. A copy of the current NPDES permit was not available on site.
2. The equalization basin structure had significant visible corrosion.
3. Duckweed was observed covering approximately 15% of the surface of the clarifier.
4. Some solids, duckweed, and other vegetation were observed partially blocking the clarifier
overflow weirs.
5. When tested during the inspection, the generator appeared to operate properly for approximately
ten minutes, then malfunctioned and had to be manually restarted by the operator.
6. A right of way to the outfall had not been properly maintained.
Other observations:
Page#

Permit: NCO087645
Inspection Date: 06/07/2023
Owner -Facility: Milton WWTP
Inspection Type: Compliance Evaluation
NPDES permit NCO087645 became effective March 1, 2023 and will expire at midnight on May 31,
2027. The facility and its components were as described in the subject permit. The subject permit
contains no special conditions. Access to the plant site was restricted to the general public by a
locked fence. The inspector was granted access to all areas for inspection.
Required records were available and appeared complete and current. Mr. Smith stated that records
for at least the past three years have been stored at Pace Analytical in Kernersville, NC and were not
on site during the inspection. The DMR, laboratory data, and chains of custody for April 2023 were
reviewed and appeared to be complete with no errors found. All ORCs held the appropriate
certification level at the time of inspection. An ORC visitation log was available and current. A copy of
the current NPDES permit was not available on site.
Field parameters of pH, DO, and temperature have been performed under field lab certification #633,
held by Pace Analytical. All other parameters have been transported to and performed by Pace
Analytical commercial lab certification #40. Field calibration records for pH and DO were reviewed
and appeared current and complete. No records for field thermometer calibration were available, Mr.
Smith stated that he utilizes the thermometer built into the DO meter for field temperatures.
The facility has utilized pH, DO, and a sludge judge for process control parameters throughout the
treatment process. The plant was generally clean with acceptable housekeeping during the
inspection.
Mr. Smith stated that influent grab samples are taken from the flow splitter box located just after the
bar screen.
The influent manual bar screen was severely corroded with several bars corroded away entirely, and
therefore unable to adequately screen debris.
The equalization basin was aerated with submerged forced air diffusers and appeared to be free of
excessive grease, solids, and organic matter. The equalization basin audible and visual alarms were
tested during the inspection and found to be nonfunctional. The high level alarm was manually
triggered and displayed a prompt on the control panel, but the alarm light and sound did not
commence. The equalization basin structure was highly corroded.
The aeration basin appeared to be operating properly during the inspection and utilized submerged
forced air diffusers. All diffusers appeared to be operational, and the basin was free of dead spots.
Some duckweed was observed in the aeration basin, covering approximately 5% of the surface.
The secondary clarifier did not contain a center well or drive unit, only a baffle and weir. The clarifier
was free of black and odorous wastewater. The clarifier appeared to be free of excessive floating
sludge. Mr. Smith stated that he maintains a sludge depth of approximately 1.5 feet in the clarifier,
this was not measured during the inspection. Duckweed was observed covering approximately 15% of
the surface of the clarifier. Some solids, duckweed, and other vegetation were observed partially
blocking the clarifier overflow weirs. Due to the blockages and low flow during the inspection, the
clarifier effluent wastewater was difficult to inspect and characterize.
UV disinfection is utilized at the facility and the apparatus appeared to be operating properly during
the inspection. Due to low flow, effluent leaving the UV apparatus was difficult to inspect and
characterize. Enough backup bulbs were stored on site to replace every bulb in the unit.
Page#

Permit: NCO087645
Inspection Date: 06/07/2023
Owner -Facility: Milton WWTP
Inspection Type: Compliance Evaluation
Dual 3,000 gallon sludge holding tanks were being used to store excess sludge and are pumped and
hauled as needed. Pump and haul records and/or receipts were not requested during the
inspection. The tanks appeared to be storing sludge properly during the inspection, with adequate
capacity available.
An automatic generator capable of operating the entire facility was on site during the inspection and
has been tested weekly under load with the primary power source interrupted. The generator is
fueled by propane, the level of which is monitored and refilled by Thomas Oil Company. When tested
during the inspection, the generator appeared to operate properly for approximately ten minutes,
then malfunctioned and had to be manually restarted by the operator.
The effluent flow meter has been used for reporting and appeared to be operating properly during
the inspection. According to the provided records, the effluent flow meter was last calibrated June 30,
2021 by Clearwater Inc. Flow meters used for monitoring and reporting must be calibrated annually
and those records retained for three years, according to the subject permit.
The effluent pipe and outfall were not inspected due to inaccessibility caused by tall vegetation and
safety concerns. A right of way to the outfall had not been properly maintained. A right of way to the
outfall must be maintained for the purposes of inspection, maintenance, and sampling.
Due to the lack of a properly maintained right of way to the outfall, upstream sampling has not been
conducted at the location specified by the subject permit, which is 20 feet upstream from the outfall.
Mr. Smith stated that downstream sampling has been conducted at the permit -specified location of
Country Line Creek at Highway 57, but the location was not inspected due to time constraints.
Page#

Permit: NCO087645 Owner -Facility: Milton WWTP
Inspection Date: 06/07/2023 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 ❑ ❑ ■ ❑
application?
Is the facility as described in the permit? ■ ❑ ❑ ❑
# 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: NPDES permit NCO087645 became effective March 1, 2023 and will expire at midnight
on May 31, 2027. The facility and its components were as described in the subject
permit. The subject permit contains no special conditions. Access to the plant site was
restricted to the general public by a locked fence. The inspector was granted access to
all areas for inspection.
Record Keeping
Yes
No
NA
NE
Are records kept and maintained as required by the permit?
■
❑
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❑
Is all required information readily available, complete and current?
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Are all records maintained for 3 years (lab. reg. required 5 years)?
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Are analytical results consistent with data reported on DMRs?
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Is the chain -of -custody complete?
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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?
■
❑
❑
❑
Has the facility submitted its annual compliance report to users and DWQ?
❑
❑
■
❑
(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?
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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
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classification?
Is a copy of the current NPDES permit available on site?
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Facility has copy of previous year's Annual Report on file for review?
❑
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❑
Page# 5

Permit: NCO087645
Inspection Date: 06/07/2023
Owner -Facility: Milton WWTP
Inspection Type: Compliance Evaluation
Record Keeping Yes No NA NE
Comment: Required records were available and appeared complete and current. Mr. Smith stated
that records for at least the past three years have been stored at Pace Analytical in
Kernersville, NC and were not on site during the inspection. The DMR, laboratory data,
and chains of custody for April 2023 were reviewed and appeared to be complete with
no errors found. All ORCs held the appropriate certification level at the time of
inspection. An ORC visitation log was available and current. A copy of the current
NPDES permit was not available on site.
Laboratory
Yes
No
NA
NE
Are field parameters performed by certified personnel or laboratory?
■
❑
❑
❑
Are all other parameters(excluding field parameters) performed by a certified lab?
0
❑
❑
❑
# Is the facility using a contract lab?
0
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
❑
❑
❑
■
degrees Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
❑
❑
❑
■
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
❑
❑
❑
■
Comment: Field parameters of pH, DO, and temperature have been performed under field lab
certification #633, held by Pace Analytical. All other parameters have been transported
to and performed by Pace Analytical commercial lab certification #40. Field calibration
records for pH and DO were reviewed and appeared current and complete. No records
for field thermometer calibration were available, Mr. Smith stated that he utilizes the
thermometer built into the DO meter for field temperatures.
Operations & Maintenance
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?
Yes No NA NE
❑ ❑ ❑
❑ ❑ ❑
Comment: The facility has utilized pH, DO, and a sludge judge for process control parameters
throughout the treatment process. The plant was generally clean with acceptable
housekeeping during the inspection.
Influent Sampling
Yes
No
NA
NE
# Is composite sampling flow proportional?
❑
❑
0
❑
Is sample collected above side streams?
■
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❑
❑
Is proper volume collected?
❑
❑
0
❑
Is the tubing clean?
❑
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0
❑
# 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?
❑
❑
❑
Page# 6

Permit: NC0087645
Inspection Date: 06/07/2023
Owner -Facility: Milton WWTP
Inspection Type: Compliance Evaluation
Influent Sampling Yes No NA NE
Comment: Mr. Smith stated that influent grab samples are taken from the flow splitter box located
iust after the bar screen.
Bar Screens
Type of bar screen
Yes No NA NE
a.Manual
b.Mechanical
❑
Are the bars adequately screening debris?
❑
0
❑
❑
Is the screen free of excessive debris?
■
❑
❑
❑
Is disposal of screening in compliance?
❑
❑
❑
Is the unit in good condition?
❑
0
❑
❑
Comment: The influent manual bar screen was severely
corroded with several bars corroded
away entirely, and therefore unable to adequately
screen debris.
Equalization Basins
Yes
No
NA NE
Is the basin aerated?
0
❑
❑
❑
Is the basin free of bypass lines or structures to the natural environment?
0
❑
❑
❑
Is the basin free of excessive grease?
■
❑
❑
❑
Are all pumps present?
0
❑
❑
❑
Are all pumps operable?
❑
❑
❑
Are float controls operable?
0
❑
❑
❑
Are audible and visual alarms operable?
❑
0
❑
❑
# Is basin size/volume adequate?
0
❑
❑
❑
Comment: The equalization basin was aerated with submerged forced air diffusers and appeared
to be free of excessive grease, solids, and organic matter. The equalization basin
audible and visual alarms were tested during the inspection and found to be
nonfunctional. The high level alarm was manually triggered and displayed a prompt on
the control panel, but the alarm light and sound did not commence. The equalization
basin structure was highly corroded.
Aeration Basins Yes No NA NE
Mode of operation Ext. Air
Type of aeration system Diffused
Is the basin free of dead spots? ■ ❑ ❑ ❑
Are surface aerators and mixers operational? ❑ ❑ 0 ❑
Are the diffusers operational? 0 ❑ ❑ ❑
Page# 7

Permit: NCO087645 Owner -Facility:
Inspection Date: 06/07/2023 Inspection Type:
Milton WWTP
Compliance Evaluation
Aeration Basins
Yes
No
NA
NE
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?
❑
❑
❑
Is the DO level acceptable?(1.0 to 3.0 mg/I)
❑
❑
❑
Comment: The aeration basin appeared to be operating properly during the inspection and
utilized submerged forced air diffusers. All diffusers appeared to be operational, and
the basin was free of dead spots. Some duckweed was observed in the aeration basin
covering approximately 5% of the surface.
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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Comment: The secondary clarifier did not contain a center well or drive unit, only a baffle and
weir. The clarifier was free of black and odorous wastewater. The clarifier appeared to
be free of excessive floating sludge. Mr. Smith stated that he maintains a sludge depth
of approximately 1.5 feet in the clarifier, this was not measured during the inspection.
Duckweed was observed covering approximately 15% of the surface of the clarifier.
Some solids, duckweed, and other vegetation were observed partially blocking the
clarifier overflow weirs. Due to the blockages and low flow during the inspection, the
clarifier effluent wastewater was difficult to inspect and characterize.
Disinfection - UV
Yes
No
NA
NE
Are extra UV bulbs available on site?
■
❑
❑
❑
Are UV bulbs clean?
❑
❑
❑
Is UV intensity adequate?
❑
❑
❑
Is transmittance at or above designed level?
❑
❑
❑
■
Is there a backup system on site?
❑
0
❑
❑
Is effluent clear and free of solids?
❑
❑
❑
Page# 8

Permit: NCO087645
Inspection Date: 06/07/2023
Disinfection - UV
Owner -Facility: Milton WWTP
Inspection Type: Compliance Evaluation
Yes No NA NE
Comment: UV disinfection is utilized at the facility and the apparatus appeared to be operating
properly during the inspection. Due to low flow, effluent leaving the UV apparatus was
difficult to inspect and characterize. Enough backup bulbs were stored on site to
replace every bulb in the unit.
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
■ ❑ ❑ ❑
❑ ❑ ■ ❑
■ ❑ ❑ ❑
❑ ❑ ■ ❑
❑ ❑ ■ ❑
❑ ❑ ■ ❑
❑ ❑ ❑ ■
Comment: Dual 3,000 gallon sludge holding tanks were being used to store excess sludge and
are pumped and hauled as needed. Pump and haul records and/or receipts were not
requested during the inspection. The tanks appeared to be storing sludge properly
during the inspection, with adequate capacity available.
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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■ ❑ ❑ ❑
■ ❑ ❑ ❑
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❑ ❑ ❑ ■
■ ❑ ❑ ❑
Comment: An automatic qenerator capable of operating the entire facility was on site during the
inspection and has been tested weekly under load with the primary power source
interrupted. The generator is fueled by propane, the level of which is monitored and
refilled by Thomas Oil Company. When tested during the inspection, the generator
appeared to operate properly for approximately ten minutes, then malfunctioned and
had to be manually restarted by the operator.
Flow Measurement - Effluent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
Yes
No
NA
NE
■
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Permit: NCO087645 Owner -Facility: Milton WWTP
Inspection Date: 06/07/2023 Inspection Type: Compliance Evaluation
Flow Measurement - Effluent Yes No NA NE
(If units are separated) Does the chart recorder match the flow meter? ❑ ❑ ❑
Comment: The effluent flow meter has been used for reporting and appeared to be operatin
properly during the inspection. According to the provided records, the effluent flow
meter was last calibrated June 30, 2021 by Clearwater Inc. Flow meters used for
monitoring and reporting must be calibrated annually and those records retained for
three years, according to the subject permit.
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)?
Is the facility sampling performed as required by the permit (frequency, sampling type
representative)?
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?
Yes No NA NE
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Yes
No
NA
NE
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Comment: The effluent pipe and outfall were not inspected due to inaccessibility caused by tall
vegetation and safety concerns. A right of way to the outfall had not been properly
maintained. A right of way to the outfall must be maintained for the purposes of
inspection, maintenance, and sampling.
Upstream / Downstream Sampling
Is the facility sampling performed as required by the permit (frequency, sampling type,
and sampling location)?
Yes No NA NE
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Comment: Due to the lack of a properly maintained right of wav to the outfall, upstream samplin
has not been conducted at the location specified by the subject permit, which is 20 feet
upstream from the outfall. Mr. Smith stated that downstream sampling has been
conducted at the permit -specified location of Country Line Creek at Highway 57, but
the location was not inspected due to time constraints.
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