NC0086550_Compliance Report_20230214

ROY COOPER
Go,ernor
ELIZABETH S. B1SER
Secretary
RICHARD E. ROGERS, JR.
Director
Edwin T. Fields
Town of Fairmont
PO Box 248
Fairmont, NC 28340-0248
C oa. SfATE'q,
NORTH CAROLINA
Environmental Quality
March 01, 2023
SUBJECT: Compliance Inspection Report
Fairmont Regional WWTP
NPDES WW Permit No. NCO086550
Robeson County
Dear Permittee:
The North Carolina Division of Water Resources conducted an inspection of the Fairmont Regional WWTP on
2/14/2023. This inspection was conducted to verify that the facility is operating in compliance with the
conditions and limitations specified in NPDES WW Permit No. NC0086550. The findings and comments noted
during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance
Inspection Report".
A Whole Effluent Toxicity test was collected from the effluent, time -paced 24-hour composite equipment on
February 14 and 16, 2023 for use in a chronic Ceriodaphnia dubia pass/fail toxicity test. The Whole Effluent
Toxicity pass/fail test resulted in a "PASS" result.
During review of November 2022, December 2022, and January 2023 DMRs, multiple transcription errors as
well as three missing data points were found. At the time of inspection, current ORC Tommy Fields was
operating under a temporary grade 3 certification. It was also noted that the fourth quarter upstream sample of
2022 was not taken.
The flow meter at the influent was functioning and had been calibrated by IS Dismuke Company, Inc. on Nov
17, 2022. The tubing appeared clean. The thermometer inside the refrigerated cabinet did not have a
calibration date, which must be corrected.
The aeration basins appeared free of dead spots, but the Division notes that there was noticeably low air flow
during the time of inspection, which the staff informed us was due to high amounts of biosolids present. The
low rate of air was to keep from pushing solids into the clarifiers. The staff also informed us that some diffusers
near where the influent enters #1 aerator were acting irregularly and causing uneven air diffusion in one basin.
There was visibly large bubbles and high mixing in that area. The staff plans to drain the basin as soon as
possible to look at the diffusers and make repairs if needed.
Currently, the staff is unable to have large amounts of sludge removed, which is impeding proper plant
processing. Especially during times of high flow, high amounts of sludge in the aeration basins and hence in
the clarifier increase the likelihood of permit violations. The Division strongly suggests more frequent sludge
removal to avoid possible violations.
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Fayetteville Regional Offce1225 Green Street S�dte 7141 FayetteNlk. North Garvtlna ZB301

The effluent sampler was also time -paced, not flow -paced, and the Division recommends that this be rectified
as soon as possible to be compliant with the permit. The effluent sampler had clean tubing, and the
thermometer inside was also not calibrated.
The two large sodium hypochlorite tanks located onsite were in concrete secondary containment. The staff
informed us that two new tanks were coming to replace the current tanks. While inspecting the secondary
containment, the Division notes that an open drain was located in the corner of the containment. When asked,
the staff was unsure where the drain lead to, and informed us that it would be capped and/or the valve would
be located and closed.
The effluent pump station appeared free of bypass lines and structures. At least one pump ran during
inspection and all pumps are operating according to staff. The float alarm was pulled and the audio/visual
alarm did function but there was no testing log to review.
The on -site backup generator is tested manually under load once a month, and the staff takes care of basic
maintenance such as oil. The staff informed us that a bid had just been completed for a new generator. The
new generator will be the main backup and the existing generator will become the secondary back up. The staff
is unsure of when the new generator will arrive. The staff brings in their own fuel with a 500-gallon tank.
There were no significant issues or findings noted during the inspection and therefore, a response to this
inspection report is not required.
If you should have any questions, please do not hesitate to contact Sharon Moran with the Water
Quality Regional Operations Section in the Fayetteville Regional Office at 910-916-3489 or via email at
[e-mail].
ATTACHMENTS
Cc: NPDES Laserfiche file
Sincerely,
DDocuSigned by:
sLwbt& Ai.brw&
2BE17E499D6943D...
Sharon Moran, Environmental Specialist
Water Quality Regional Operations Section
Fayetteville Regional Office
Division of Water Resources, NCDEQ
D ��� North Carolina Department of Envlronmenlal Quality Dlvlslon of Water Resourres
Fayette &—Negional Officel 223 Green Street Suite 7141 Faynteville.Nw hCarclina25W1

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 NCO086550 I11 121 23/02/14 I17 18LB] 19 I s I 20L]
21111I 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 r6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
67
70 I I 71 I n LI 72 I Lni I 71 I 74 79 I I I I I I I80
LJ -1 I I
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)
08:OOAM 23/02/14
22/12/01
Fairmont Regional WWTP
Off US Hwy 74
Exit Time/Date
Permit Expiration Date
Fairmont NC 28340
12:30PM 23/02/14
27/07/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Edwin Thomas Fields/ORC/910-734-1671/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Johnny J Britt,PO Box 248 Fairmont NC 283400248/Superintendent/910-628-0064/
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
DocuSigned by:
Sharon Moran nI - DWR/FRO WQ/910-433-3300/ 3/10/2023
LvDln, l'VI. rm.
E2BE17E499D6943D...
Signature of Mana a64Re gewer Agency/Office/Phone and Fax Numbers Date
7At�tAMark Brantley br/FRO WQ/910-433-3300 Ext.727/ 3/10/2023
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type
NCO086550 I11 12I 23/02/14 117 18 IBI
(Cont.)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
A Whole Effluent Toxicity test was collected from the effluent, time -paced 24-hour composite
equipment on February 14 and 16, 2023 for use in a chronic Ceriodaphnia dubia pass/fail toxicity
test. The Whole Effluent Toxicity pass/fail test resulted in a "PASS" result.
The COCs reviewed were complete and accurate. The ORC log was in a bound notebook and was
complete and current. The WWTP had its current permit available for review, as well as the previous
year's annual report. During review of November 2022, December 2022, and January 2023 DMRs,
multiple transcription errors as well as three missing data points were found. At the time of inspection,
current ORC Tommy Fields was operating under a temporary grade 3 certification. It was also noted
that the fourth quarter upstream sample of 2022 was not taken. At the time of inspection, the permit
did not expire in six months or less.
The plant has two bar screens, one manual bar screen for back and one main mechanical bar
screen. The mechanical bar screen was run during the time of inspection. The unit appears to be in
good condition and Waste Management comes each Tuesday to dispose of waste.
After the bar screen and before the flume, there is a small chamber where the water is slowed to help
remove grit in lieu of using a standard grit removal. This chamber is sucked out by Bryant Septic
approximately every six months.
The flow meter at the influent was functioning and had been calibrated by JS Dismuke Company, Inc.
on Nov 17, 2022. The composite sampler located at the influent was time paced, not flow paced. The
tubing appeared clean. The thermometer inside the refrigerated cabinet did not have a calibration
date, which must be corrected.
A ditch for mixing and oxidation runs from the influent under the walkway around to the aeration
basins. The oxidation ditch appeared well aerated throughout. There are two aeration basins, which
are powered by the large blowers near the influent. The blowers appeared to be in good condition
and were running during the inspection. The basins appeared free of dead spots, but the division
notes that there was noticeably low air flow during the time of inspection, which the staff informed us
was due to high amounts of biosolids present. The low rate of air was to keep from pushing solids into
the clarifiers. The staff also informed us that some diffusers near where the influent enters #1 aerator
were acting irregularly and causing uneven air diffusion in one basin. There was visibly large bubbles
and high mixing in that area. The staff plans to drain the basin as soon as possible to look at the
diffusers and make repairs if needed.
The aerobic digester, which is located near the influent, appeared to have approximately 20%
coverage of foam, and was heavily aerated. A 3 inch pump was located near the digester which is
used to manually move sludge from aeration basins to storage basins. There is a gravity thickener,
and two storage basins, which is used to store wasted sludge until a contractor can be arranged to
provide sludge removal. Currently, the staff is unable to have large amounts of sludge removed,
which is impeding proper plant processing. Especially during times of high flow, high amounts of
sludge in the aeration basins and hence in the clarifier increase the likelihood of permit violations.
The Division strongly suggests more frequent sludge removal to avoid possible violations.
The two secondary clarifiers at the plant were both running and operational during the time of
inspection. A hose was centered at each the influent of each clarifier to help break up solids There
were also additional sprayers along the walkway to assist the process. The sprayer system was
drawing water from the contact chamber. The effluent appeared clear, and did not have excessive
solids. The staff pulled a sludge judge from both clarifiers. One was approximately 3 foot and one was
approximately 2 1/2 foot of sludge.
One of the two disinfection contact chambers contained approximately one and three-quarter foot of
Page#

Permit: NCO086550
Inspection Date: 02/14/2023
Owner -Facility: Fairmont Regional WWTP
Inspection Type: Bioassay Compliance
sludge. The disinfection liquid is in a double walled storage container near the contact chamber and
was approximately 1/3 full. Staff informed us that it was about time to order more and that the
remaining disinfection liquid would last at least one more week. There was a hose into a drain located
near the contact chamber. We asked staff what the purpose of the hose was, and they informed us
that they experience clogs in the contact chamber somewhat frequently and they use the hose to
pump out the clogs to send to plant headworks. There are two effluent flowmeters, one on each
contact chamber, that are used in tandem to record effluent flow. The flow meters at the effluent had
been calibrated at the same time as the influent. The effluent sampler was also time -paced, not
flow -paced, and the Division recommends that this be rectified as soon as possible to be compliant
with the permit. The effluent sampler had clean tubing, and the thermometer inside was also not
calibrated.
The two large sodium hypochlorite tanks located onsite were in concrete secondary containment. The
staff informed us that two new tanks were coming to replace the current tanks. While inspecting the
secondary containment, the Division notes that an open drain was located in the corner of the
containment. When asked, the staff was unsure where the drain lead to, and informed us that it would
be capped and/or the valve would be located and closed.
The effluent pump station appeared free of bypass lines and structures. At least one pump ran
during inspection and all pumps are operating according to staff. The float alarm was pulled and the
audio/visual alarm did function but there was no testing log to review.
The on -site backup generator is tested manually under load once a month, and the staff takes care
of basic maintenance such as oil. The staff informed us that a bid had just been completed for a new
generator. The new generator will be the main backup and the existing generator will become the
secondary back up. The staff is unsure of when the new generator will arrive. The staff brings in their
own fuel with a 500-gallon tank.
Page#

Permit: NCO086550
Inspection Date: 02/14/2023
Owner -Facility: Fairmont Regional WWTP
Inspection Type: Bioassay Compliance
Record Keeping
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)?
Are analytical results consistent with data reported on DMRs?
Is the chain -of -custody complete?
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?
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one grade less or greater than the facility
classification?
Is a copy of the current NPDES permit available on site?
Facility has copy of previous year's Annual Report on file for review?
Yes
No
NA
NE
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Comment: During review of November 2022, December 2022, and January 2023 DMRs, multiple
transcription errors as well as three missing data points were found. .
Permit
(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: Grit chamber in no longer in use as part of WWTP.
Laboratory
Yes No NA NE
❑ ❑ ■ ❑
■ ❑ ❑ ❑
❑ ■ ❑ ❑
■ ❑ ❑ ❑
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Yes No NA NE
Page# 4

Permit: NCO086550 Owner -Facility: Fairmont Regional WWTP
Inspection Date: 02/14/2023 Inspection Type: Bioassay Compliance
Laboratory
Yes
No
NA
NE
Are field parameters performed by certified personnel or laboratory?
0
❑
❑
❑
Are all other parameters(excluding field parameters) performed by a certified lab?
0
❑
❑
❑
# Is the facility using a contract lab?
■
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
❑
❑
0
❑
degrees 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:
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, ❑ ■ ❑ ❑
and sampling location)?
Comment: It was noted that the fourth quarter upstream sample of 2022 was not taken.
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:
Bar Screens Yes No NA NE
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
0
❑
❑
❑
Is the screen free of excessive debris?
0
❑
❑
❑
Is disposal of screening in compliance?
0
❑
❑
❑
Is the unit in good condition?
0
❑
❑
❑
Comment: Small chamber before flume causes
grit to settle out. Pumped out by Bryant Septic
about every six months.
Flow Measurement - Influent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
■ ❑ ❑ ❑
Page# 5

Permit: NCO086550 Owner -Facility: Fairmont Regional WWTP
Inspection Date: 02/14/2023 Inspection Type: Bioassay Compliance
Flow Measurement - Influent Yes No NA NE
(If units are separated) Does the chart recorder match the flow meter? ❑ ❑ 0 ❑
Comment: Influent flow meter had been calibrated by JS Dismuke Company, Inc. on Nov 17, 2022.
Influent Sampling
Yes
No
NA
NE
# Is composite sampling flow proportional?
❑
0
❑
❑
Is sample collected above side streams?
■
❑
❑
❑
Is proper volume collected?
■
❑
❑
❑
Is the tubing clean?
E
❑
❑
❑
# 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?
❑
0
❑
❑
Comment: The composite sampler located at the influent was time paced, not flow paced. The
thermometer inside the refrigerated cabinet did not have a calibration date.
Aeration Basins Yes No NA NE
Mode of operation Ext. Air
Type of aeration system
Diffused
Is the basin free of dead spots?
0
❑
❑
❑
Are surface aerators and mixers operational?
❑
❑
0
❑
Are the diffusers operational?
■
❑
❑
❑
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/1)
❑
❑
❑
■
Comment:
Secondary Clarifier
Yes
No
NA NE
Is the clarifier free of black and odorous wastewater?
0
❑
❑
❑
Is the site free of excessive buildup of solids in center well of circular clarifier?
0
❑
❑
❑
Are weirs level?
0
❑
❑
❑
Is the site free of weir blockage?
0
❑
❑
❑
Is the site free of evidence of short-circuiting?
■
❑
❑
❑
Is scum removal adequate?
0
❑
❑
❑
Is the site free of excessive floating sludge?
0
❑
❑
❑
Page#
6

Permit: NCO086550
Owner -Facility: Fairmont Regional WWTP
Inspection Date: 02/14/2023
Inspection Type: Bioassay Compliance
Secondary Clarifier
Yes
No
NA
NE
Is the drive unit operational?
0
❑
❑
❑
Is the return rate acceptable (low turbulence)?
■
❑
❑
❑
Is the overflow clear of excessive solids/pin floc?
0
❑
❑
❑
Is the sludge blanket level acceptable? (Approximately'/4
of the sidewall depth) 0
❑
❑
❑
Comment: Build up noted on effluent weir but not excessive and is pressure washed twice a week.
Disinfection -Liquid
Yes
No
NA
NE
Is there adequate reserve supply of disinfectant?
0
❑
❑
❑
(Sodium Hypochlorite) Is pump feed system operational?
0
❑
❑
❑
Is bulk storage tank containment area adequate? (free of leaks/open drains)
■
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❑
Is the level of chlorine residual acceptable?
0
❑
❑
❑
Is the contact chamber free of growth, or sludge buildup?
0
❑
❑
❑
Is there chlorine residual prior to de -chlorination?
0
❑
❑
❑
Comment:
De -chlorination
Yes
No
NA
NE
Type of system ?
Liquid
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?
0
❑
❑
❑
Are the tablets the proper size and type?
❑
❑
❑
Comment: An open drain was located in the corner of the secondary containment.
Are tablet de -chlorinators operational?
❑
❑
❑
Number of tubes in use?
Comment:
Flow Measurement - Effluent
Yes
No
NA
NE
# Is flow meter used for reporting?
0
❑
❑
❑
Is flow meter calibrated annually?
M
❑
❑
❑
Is the flow meter operational?
0
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
0
❑
Comment: Dual effluent flow meters had been calibrated by JS Dismuke Company,
Inc. on Nov
17,
2022.
Page#
7

Permit: NCO086550 Owner - Facility: Fairmont Regional WWTP
Inspection Date: 02/14/2023 Inspection Type: Bioassay Compliance
Flow Measurement- Effluent Yes No NA NE
Effluent Sampling
Yes
No
NA
NE
Is composite sampling flow proportional?
❑
0
❑
❑
Is sample collected below all treatment units?
0
❑
❑
❑
Is proper volume collected?
M
❑
❑
❑
Is the tubing clean?
0
❑
❑
❑
# 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
❑
0
❑
❑
representative)?
Comment: The composite sampler located at the effluent was time paced, not flow paced.
The
sampler needs to be flow paced to meet permit requirements. The thermometer inside
the refrigerated cabinet did not have a calibration date.
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
❑
❑
❑
# Is the odor acceptable?
0
❑
❑
❑
# Is tankage available for properly waste sludge?
0
❑
❑
❑
Comment:
Pump Station - Effluent
Yes
No
NA
NE
Is the pump wet well free of bypass lines or structures?
0
❑
❑
❑
Are all pumps present?
0
❑
❑
❑
Are all pumps operable?
0
❑
❑
❑
Are float controls operable?
0
❑
❑
❑
Is SCADA telemetry available and operational?
❑
❑
0
❑
Is audible and visual alarm available and operational?
0
❑
❑
❑
Comment: The float alarm was pulled and the audio/visual alarm did function but there was no
testing log to review.
Standby Power
Yes
No
NA
NE
Is automatically activated standby power available?
❑
0
❑
❑
Is the generator tested by interrupting primary power source?
0
❑
❑
❑
Page# 8

Permit: NCO086550
Inspection Date: 02/14/2023
Standby Power
Is the generator tested under load?
Owner -Facility: Fairmont Regional WWTP
Inspection Type: Bioassay Compliance
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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■
■
❑
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■
■
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❑
Comment: The on -site backup generator is tested manually under load once a month, and the
staff takes care of basic maintenance such as oil. The staff informed us that a bid had
just been completed for a new generator. The new generator will be the main backup
and the existing generator will become the secondary back up. The staff is unsure of
when the new generator will arrive. The staff brings in their own fuel with a 500-gallon
tank.
Page# 9

Regional Inspectors' Checklist for Field Parameters
[This checklist is to be completed during regional plant inspections for Field Laboratories denoted by certification numbers in the 5000s.]
Facility Name: Fairmont Regional WWTP
Regional Plant Inspector: Sharon Moran
Permit #: NC0086550
Regional Inspector Contact #: 910 916-3489
Field Lab Certification M 5148
Region: FRO
Lab Contact:
Date: 2/14/23
I. Check the parameter(s) performed at this site for reporting purposes.
❑ Total Residual Chlorine (TRC) ® Temperature (TEMP) ❑ Specific Conductance (SC)
® pH ® Dissolved Oxygen (DO) ❑ Settleable Residue (SETT)
II. General Laboratory (note any exceptions in section XI)
Are instruments, meters, probes, photometric cells, etc. maintained in good condition?
® Yes ❑ No
Are standards, reagents and consumables used within manufacturer expiration dates?
[TRC gel standard is exempt.]
® Yes ❑ No
Are the following items documented (� where applicable):
Item
TRC
pH
TEMP
DO
SC
SETT
Date of sample collection*
Time of sample collection*
Sample collector's initials or signature
Date of sample analysis*
Time of sample analysis*
Analyst initials or signature
Sample site i.e., facility name, location, ID, etc.
Instrument ID
Parameter
Data qualifiers, when required
*Date and time of sample collection and analysis may be the same for in situ or on -site measurements.
III. Total Residual Chlorine — reference method:
Total Residual Chlorine meter make and model:
Hach DR 2800
Is a check standard analyzed each day of use? Circle one: gel or liquid standard
® Yes
❑ No
Does the check standard recover within ±10% of the known value?
® Yes
❑ No
What is the assigned/observed value of the daily check standard? 130-310 p /L range
220
/L
Is a 5-standard calibration verification performed? Note date of last verification:
® Yes
❑ No
Alternatively, does the lab construct a linear regression, using 5 standards, to calculate
results? Note date of last calibration curve constructed: 2/3/23
® Yes
❑ No
True values: ® pg/L ❑ mg/L 10, 25, 100, 200, 400
Obtained values: ® pg/L ❑ mg/L 13, 28, 104, 203, 398
What program are samples analyzed on? Chlorine total ULR
Are results reported in proper units? Check one: ® /L ❑ m /L
® Yes
❑ No
Are results reported between the facility's permit limit and the compliance limit of 50 /L?
® Yes
❑ No
Are results less than the low standard reported as "<x", where x=low standard conc.?
® Yes
❑ No
Is DPD/buffer added within 15 minutes of collection?
® Yes
❑ No
Is a post -analysis check standard analyzed if samples are analyzed at multiple sites? n/a
❑ Yes
❑ No
IV. pH — reference method:
H meter manufacturer and model: Thermoscientific
SP21
Is the pH meter calibrated with at least 2 buffers per mfg's instructions each day of use?
Note buffers used: 4, 10
❑ Yes
❑ No
Is the pH meter calibration checked with an additional buffer prior to sample analysis?
Note check buffer used: 7
® Yes
❑ No
Does the check buffer read within ±0.1 S.U. of the known value?
® Yes
❑ No
Are the following items documented:
Meter calibration?
® Yes
❑ No
Check buffer readin s ?
® Yes
❑ No
Are samples analyzed within 15 minutes of collection?
® Yes
❑ No
Are sample results reported to 0.1 pH units on the eDMR?
❑ Yes
❑ No
Is a post -analysis check buffer analyzed if samples are analyzed at multiple sites? n/a
❑ Yes
❑ No

V. Temperature — reference method:
What instrument(s) is used to measure temperature? Check all that apply: ❑ pH meter
❑ DO meter ❑ Conductivity meter ❑ Digital thermometer ❑ Glass thermometer
VWR Scientific
161220-416
Is the instrument/thermometer calibration checked at least annually against a NIST
traceable thermometer? *Thermometer had two year certification
® Yes
❑ No
Is NIST traceability documentation maintained on site?
® Yes
❑ No
Are samples measured within 15 minutes?
® Yes
❑ No
Are sample results reported in degrees C?
❑ Yes
❑ No
VI. Dissolved Oxygen — reference method:
DO meter make and model:
YSI 550A
Is the air calibration of the DO meter performed each day of use?
® Yes
❑ No
Is meter calibration documented?
® Yes
❑ No
Are samples analyzed within 15 minutes of collection?
® Yes
❑ No
Are results reported in mg/L?
® Yes
❑ No
If samples are analyzed at multiple sites, is the meter recalibrated at each site or a post-
analysis calibration verification performed? n/a
❑ Yes
❑ No
Does the post -analysis verification theoretical value agree within 0.5 mg/L of the meter
calibration reading? n/a
❑ Yes
❑ No
VII. Conductivity — reference method:
N/A
Conductivity meter make and model:
Is the meter calibrated daily according to the manufacturer's instructions? Note standard
used this is generally a one -point calibration):
❑ Yes
❑ No
Is a daily check standard analyzed? Note value:
❑ Yes
❑ No
Is meter calibration documented?
❑ Yes
❑ No
Are samples analyzed within 28 days of collection?
❑ Yes
❑ No
Is a post -analysis check standard analyzed if multiple samples are analyzed?
Are results reported in pmhos/cm some meters display equivalent pS/cm units)?
❑ Yes
❑ No
Vill. Settleable Residue — reference method:
N/A
Does the laboratory have an Imhoff Cone in good condition?
❑ Yes
❑ No
Is the sample settled for 1 hour?
❑ Yes
❑ No
Is the sample aitated after 45 minutes?
❑ Yes
❑ No
Are the following items documented:
Volume of sample analyzed? Note volume analyzed (must use 1 L):
❑
Yes
❑
No
Date and time of sample analysis (settling start time)?
❑
Yes
❑
No
Time of agitation after 45 minutes of settling?
❑
Yes
❑
No
Sample analysis completion(settling end time)?
❑
Yes
❑
No
Are samples analyzed within 48 hours of collection?
❑
Yes
❑
No
Are results reported in ml/L?
❑
Yes
❑
No
IX. Was a paper trail (comparing contract lab and on -site data to DMRs)
performed? If so, list months reviewed: Nov 22, Dec 22, Jan 23
® Yes
❑ No
X. Is follow-up by the Laboratory Certification program recommended?
® Yes
❑ No
XI. Additional comments:
Multiple errors including transcription errors and missing data were found in reviewed DMRs.
Please submit a copy of this completed form to the Laboratory Certification program at:
DWR Lab Certification, Water Sciences Section, 1623 Mail Service Center, Raleigh NC, 27699-1623
Electronic copies may be emailed to Jennifer.seaver(a)ncdenr.gov.
Revision 3/2021