NC0027103_Inspection_20020417

T.
ArlvA
NCDENR
North Carolina Department of Environment and Natural Resources
April 17, 2002
Michael F. Easley, Governor
The Honorable Milton Hunt
Mayor, Town of Pembroke
PO Box 866
Pembroke, NC 28372
SUBJECT: Compliance Evaluation Inspection
Town of Pembroke WWTP
NPDES Permit No. NC0027103
Robeson County
Dear Mr. Hunt:
L472{3/0
Ztfikk
William G. Ross Jr., Secretary
Gregory J. Thorpe, Ph.D.
Acting Director
Division .of Water Quality
Enclosed is a copy of the Compliance Evaluation Inspection conducted April 9.2002.
As part of the inspection a tour of the Wastewater Treatment Plant was conducted. All observations
and recommendations are in Part D. Summary of Findings/Comments of this inspection report. The
cooperation of Ms. Rhonda Locklear, Grade III Operator/ Laboratory Supervisor,was appreciated.
During the inspection a copy of the NPDES Compliance Reminders were reviewed and left with Ms.
Locklear. As a reminder preservation of the Waters of the State can only be acquired through
consistent NPDES permit compliance.
Please review the attached, report. If you or your staff have any questions do not hesitate
to contact me at 910-486-1541.
/bsh
Enclosures
Sincerely,
432,
_. J. tCle-to
Belinda S. Henson
Environmental Chemist
cc: Mr. Gary Harris, ORC, Town of Pembroke WWTP
Fayetteville Regional Office
225 Green Street— Suite 714, Fayetteville, North Carolina 28301-5043
Phone: [phone] FAX: [phone] Internet: www.enr.state.nc.us/ENR
An Equal Opportunity 1 Affirmative Action Employer — 50% Recycled 110% Post Consumer Paper

NPDES COMPLIANCE INSPECTION REPORT
North Carolina Division of Water Quality
Fayetteville Regional Office
Section A. National Data System Coding
Transaction Code: N NPDES NO. NC0027103 Date: 020409 Inspection Type: C
Inspector: S Facility Type: 1 Reserved:
Facility Evaluation Rating: 4 BI: N QA: N Reserved:
Section B: Facility Data
Name and Location of Facility Inspected:
Town of Pembroke WWTP
Entry Time/Date: 9:50am/020409 Permit Effective Date: 000601
Exit Time/Date: 2:30pm/020409 Permit Expiration Date: 040731
Name(s), Title(s) of On -Site Representative(s):
Karen Dial (Certified Grade III) - "Backup Operator"
Rhonda Locklear (Certified Grade III) - "Laboratory Supervisor"
Phone Number(s): [phone]
Name, Title and Address of Responsible Official:
Mr. Milton Hunt, Mayor
PO Box 866
Pembroke, NC 28372
Contacted: no
Section C: Areas Evaluated During Inspection
(S = Satisfactory, M = Marginal, U = Unsatisfactory, N = Not Evaluated, N/A = Not Applicable)
rmit
acrlity:Site. Review: :
Gaborator;
:tear
s/Repo'rts
Yleasuremenl
ftluent/xeceivn
;e?
re reatmep
Monrtorn
amp !dace Scliedui
eration"ii aintenance:
ugellispasal

Hunt
Page 3
April 17, 2002
Section D: Summary of Findings/Comments:
1. The facility receives domestic waste from Fleetwood and Genesis which manufactures homes. These
are the only two industries which discharge wastewater into the facility. Daniel's Bakery closed in
January 2002.
2. The influent composite sampler temperature was 1 degree C at the time of the inspection. The
acceptable range of samples during storage and for stored samples extracts, is 1.0 - 4.4 degrees C.
3. The automatic bar screen appeared to be operational. All disposal of screenings are transported to the
county landfill. The bar screen operates on a float system which is based on the level of the wastewater
in the influent channel.
4. The grit removal system appeared to be operational with all disposal of grit transported to the county
landfill also. The system is operated manually twice a day.
5. The influent pump station has three (3) pumps. All pumps were operational at the time of the
inspection.
One (1) oxidation ditch was in operation. Under present conditions only one (1) oxidation ditch is
necessary for treatment of the wastewater. The most recent Mixed Liquor Suspended Solids (MLSS)
result was 2800 mg/L. The MLSS is analyzed 3/week and a Settleometer is analyzed 1/week. The
facility is presently chlorinating the Return Activated Sludge (RAS) to assist with further reduction of
filamentous bacteria.
7. Clarifier #1 appeared to have a sludge depth of one (1) foot in a fourteen (14) feet tank. Clarifier #2
appeared to have a sludge depth of one (1) foot with the same tank depth of Clarifier #1.
Approximately 6000 gallons/day (five days a week) is wasted from the clarifiers.
8. The facility disinfects with chlorine and dechlorinates with sulfur dioxide. Some (not excessive)
floatable debris appeared on the effluent surface in the chlorine contact tank. A suggestion is to utilize
a net or other apparatus to skim the floatables from this area and properly dispose of them
through the county landfill.
9. The effluent appeared to be free of solids with little or no apparent color.
10. The effluent composite sampler temperature appeared to be less than ldegree C. The effluent composite
sampler is also flow proportional.
11. The effluent outfall was easily accessible.
12. Sludge flows to the digester for treatment before land application occurs. Sludge is land applied under
permit 11WQ0001372. The facility has a land application scheduled every second Monday of each
month for 100,000 gallons by "Porter Sanitation".

Hunt
Page 4
April 17, 2002
13. The influent and effluent flow meter calibration was completed by Citi, LLC-Systems Integrator
December 13, 2001. The facility is using the influent for DMR reporting. It was noted that the influent
flow meter had a .0055 % of total span. The zero setting was checked by shutting down all influent
pumps and confirming a no flow condition through the flume as per the calibration report.
14. Maintenance and ORC visitation records were reviewed and appeared to be adequate.
15. The on site laboratory analyzes the majority of the required NPDES permit parameters with the
exception of Toxicity, Total Nitrogen, Mercury and Total Phosphorus which are contracted with the
commercial laboratory "TBL".
16. Laboratory records were reviewed for the months of March, August, and September 2001 and all data
appeared to be reported accurately on the DMR report.
17. A compliance evaluation analysis report for the period March 2001 through January 2002 did not reveal
any violations.
Name and Signature of Inspector
Belinda S. Henson
Name and Signature of Reviewer
Action Taken
Agency/Office/Telephone Date
DENR/Fayetteville/[phone] 4 -1 `1-O
Agency/Office/Telephone
DENR/Fayetteville/[phone]
Regulatory Office Use Only
Compliance Status
Noncompliance
_Compliance
Date
Date

Section D: Summary of Findings/Comments
Brief Facility Description:
A 1.33 MGD WWTP consisting of a automatic bar screen. grit removal, and influent pump
station, dual oxidation ditches, dual clarifiers, chlorine contact chamber: dechlorination. cascade
post aeration. and sludge digestion,
No N/A 1.
esi No N/A 2.
Yes No N/A 3.
No N/A
(YeNo N/A
es No N/A
No N/A
No N/A
No N/A
No N/A
e No N/A
CoV No . N/A
Yes gD N/A
60 No N/A
Yes a N/A
Yes 60 N/A
No N/A
FACILITY SITE REVIEW
Treatment units properly operated and maintained.
Standby power or other equivalent provision provided.
Adequate alarm system for power or equipment failure available.
4. Sludge disposal procedures appropriate:
a. Disposal of sludgeaccording to regulations
b. State approval for sludge disposal received.
5. Sufficient sludge disposed of to maintain treatment process equilibrium.
6. The ORC and Backup Operator are officially designated with
NCDENR/DWQ Training and Certification Unit.
7. Adequate spare parts and supplies inventory maintained.
8. Plant has general safety structures such as rails around or covers over
tanks, pits, or wells.
9. Plant is generally clean, free from open trash areas.
10. Screening:
a. Manual
b. Mechanical
c. Buildup of debris d. Screenings properly disposed of.
11.
Grit Removal:
a. Excessive organic content in the grit chamber
b. Excessive odors
c. Grit properly disposed of.

Page 2
Yes
Yes
Yes
Yes
Yes
• Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
12.
No N,
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A•
No N/A
No N/A
No l '
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
Yes N/A
Yes No
Yes i ) N/A
Yes N/A
Yes CSb N/A
Yes No
Yes No N/
Yes No LNG
Yes No N/A
Yes No N/A
Yes No N/A
Primary clarifier:
a. Excessive gas bubbles,
b. Black and odorous wastewater
c. Poor suspended solids removed
d_ Excessive buildup of solids in center well of circular clarifier
e. Weirs level
f Weir blockage
g. Evidence of short circuiting
h. Lack of adequate scum removal
i. Excessive floating sludge .
j. Broken sludge scraper,
13. Trickling Filter:
a. Trickling filter ponding(indicating clogged media)
b. Leak at center column of trickling filter's distribution arms
c. Uneven distribution of flow on tricklinifilter surface
d. Uneven or discolored growth
e. Excessive sloughing of growth
f. Odor
g. Clogging of trickling filter's distribution auxi orifices
h. Filter flies, worms, or snails.
14. Activated Sludge Basins/Oxidation Ditches:
a.
b.
c.
d.
e.
f
g.
Dead spots
Failure of surface aerators
Air rising in clumps
Dark foam or bad color
Thick billows of white, sudsy foam
Air rising unevenly
Excessive air leaks in compressed air piping.
15. Stabilization Pbnds/Lagoons:
a. Excessive weeds including duckweed in stabilization ponds
b. Dead fish or aquatic organisms
c. Buildup of solids around influent pipe
d. Excessive scum on surface.

Page 3
16. Secondary Clarifier:
Yes N/A a. Excessive gas bubbles on surface
'ey No N/A b. Level overflow weirs
Yes' N/A c. Weir blockage
Yes . N/A d. Evidence of short circuiting
Yes N/A e. Excessive buildup of solids in center well of circular clarifier
Yes N/A £ Pin floc in overflow
. No N/A g. Effective scum rake
Yes N/A h. Floating sludge on surface
Yes N/A i. Excessive high sludge blanket
Yes Q N/A j. Clogged sludge withdrawal ports on secondary clarifier.
1'7. Filtration:
Yes No a. Filter surface clogging
Yes No N/A b. Short filter run
Yes No N/A c. Gravel displacement of filter media
Yes No N/A " d. Loss .of filter media during back -washing
Yes No N/A e. Recycled filter backwash waterin excess of 5 percent
Yes No N/A f. Formation of mudballs in filter media.
18. Chlorination Unit:
Yes Two N/A a. Sludge buildup in contact chamber
Yes N/A b. Gas bubbles.
Yes` N/A c. Floating scum and/or solids
No N/A d. Adequate ventilation of chlorine feeding room and storage area
Yes No N/A e. NIOSH-approved 30 minute air pack
CTeD No N/A f All standing chlorine cylinders chained in place
No N/A_ . g. All personnel trained.in the use of chlorine
ems` No N/A h. Proper chlorine feed, storage, and reserve supply.
Yes No N%A% 19. Ultraviolet radiation disinfection present and in use.
Y ) No N/A
(Yes) No N/A.
No N/A
Yes Tie` N/A
Yes 4Sia N/A
Yes N/A
Yes No (lV/
20. Dechlorination:
a. Proper storage of sulfur dioxide cylinders
b. Adequate ventilation of sulfur dioxide feeding room
c. Automatic sulfur dioxide feed or feedback control operating
properly.
• 21. Aerobic Digester:
a. Excessive foaming in tank
b. Noxious odor
c. • Mechanical aeration failure
• d. Clogging of diffusers.-

Page 4
Yes No TLX
Yes No N/A
Yes No
Yes No /Al
Yes No
Yes CD N/A
Yes No N/A
Yes( N/A
No N/A
Yes
Yes
Yes
Yes
No iA
No N/A
No N/A
No N/A
Yes No N/
Yes No N/A
Yes No N/A
Yes CO N/A
Yes N/A
No N/A
No N/A
C5t0 No N/A
Yes g4-, N/A
Yes N/A
Yes No CEl
Yes (a N/A
ems' No N/A
22,
Anaerobic Digester:
a. Floating cover tilting
b. Gas burner operative
Sludge Drying and/or disposal:
a. Poor sludge distribution on drying beds
b. Vegetation in drying beds
c. Dry sludge remaining in drying beds
d. Dry sludge stored on site
e. Filtrate from sludge drying beds returned to front of plant
f. Sludge disposal through county landfill.
g. Sludge land applied.
24. Filter Press:
a. High level of solids in filtrate from filter presses or vacuum filters
b. Thin filter cake caused by poor dewatering
c. Sludge buildup on belts and/or rollers offilter press
d. Excessive moisture in belt filter press sludge cake.
25. Polishing Ponds or Tanks:
a. Objectionable odor, excessive foam, floating solids, or oil sheens on
water surface
b. Solids or scum accumulations in tank or at side of pond
c. Evidence of bypassed polishing ponds or tanks because of low
capacity.
26. Plant Effluent:
a. Excessive suspended solids, turbidity, foam, grease, scum,
other macroscopic particulate matter present
b. Potential toxicity (dead fish, dead plant at discharge)
c. Outfall discharge line easily accessible.
27. Flow Measurement:
a. Proper placement of .flow measurement device
b. Flow meter calibrated
c. Buildup of solids in flume or weir
d. Broken or cracked flume or weir
e. Clogged or broken stilling wells
f. Weir plate edge corroded or damaged
g. Flow measurement error less than 10%.
•
color, and

Page 5
2
SO No N/A
No N/A
y No N/A
C e No . N/A
Sampling:
a. Sampling and analysis completed on parameters specified by permit
b.. Composite sample temperatures maintained at 4 degrees Celsius or
less (but above freezing) during sampling
c. Contract laboratory used for sample analysis
d. Effluent composite samples obtained are flow proportional.
RECORDKEEPI TGAND REPORTING
No -N/A 1. Records and reports maintained as required by permit.
'CYO No N/A 2. All required information available, complete, and current.
No . N/A 3. Records maintained for 3 years and all sludge records maintained for 5
years.
eiNo N/A 4. Analytical results' consistent with data reported on DMRs.
T
5. Sampling and analyses data adequate and include:
No N/A . a. Dates, times, and location of sampling
No N/A b. Name of individual performing sampling
CO No . N/A c. Results of analyses and calibration
CEO No N/A d. Dates of analyses
-e.s No N/A e. Name of person performing analyses.
6. Monitoring records adequate and include:
Yes No N/A a. Monitoring charts kept for.3 years
(Yes No N/A b. Flowmeter calibration records kept for 3 years.
�e)No N/A 7. The pH meter is calibrated daily with two buffers and checked with a
third buffer and properly documented.
Ces� No N/A
No N/A
8. Expiration dates of pH buffers adequate.
All thermometers used in NPDES permit reporting is calibrated
annually with an NIST certified thermometer or a traceable
thermometer. annually and documented.
Yes-) No N/A 10. The following NPDES permit required parameters are analyzed on site:
pH, Temperature, Dissolved Oxygen and Chlorine Residual.

Page 6
(Nei) No N/A
(es) No N/A
Yes No N/A
(Y7s)- No N/A
Yes No N/A
-6- No N/A
Yes No I-47/
Yes No A�
Yeo N/A
Yes . No '`N/A.)
(YespNo N/A
Yes�iNo N/A
11. The NPDES permit required parameter Total Chlorine Residual is
analyzed by approved method.
12. BOD incubator temperature maintained at 20 +/- .l Degrees Celsius
and the temperature maintained in a log for every day of operation.
13. Fecal coliform incubator maintained at 44.5 +/- 0.2 Degree Celsius and
the temperature maintained in a log for every day of operation.
14. Plant records adequate and include:
a. O & M Manual
b. "As -built" engineering drawings
c. Schedules and dates of equipment maintenance repairs
d. Equipment data cards.
15. Permittee is meeting compliance schedule.
16. DMRs complete and include all NPDES permit required parameters.
17. The facility has a permitted flow greater than 5 MGD and is required
to operate seven days per week 24 hours a day.
18. ORC visitation logs available and current.
19.. ORC certified at a level equal to or greater than the classification of
the wastewater facility.
s�No N/A 20.
( -s No N/A 21..
Yes% No N/A 22.
0Yesj) No N/A 23.
Yes No
Revised 7/16/01
by Belinda Henson
Backup Operator certified at one level less than the classification of
the wastewater facility or greater.
Current copy of the complete NPDES permit on site.
Facility description verified as contained in NPDES permit.
Facility analyzes process control parameters for example: MLSS,
MCRT, Settleable Solids and others that are applicable.
24. Industrial Waste Surveys (IWS) sent to all possible Significant
Industrial Users (SIUs) within the last five years (especially new
industries).