HomeMy WebLinkAboutNC0026921_Inspection_20070221Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
February 26, 2007
Larry G Hagin, Mayor
Town of Parkton
PO Box 55
Parkton NC 28371
SUBJECT: February 21, 2007 Compliance Evaluation Inspection
Town of Parkton
Parkton WWTP
Permit No: NC0026921
Robeson County
Dear Mr. Hagin:
Enclosed please find a copy of the Compliance Evaluation Inspection form from the inspection conducted on
February 21, 2007. The Compliance Evaluation Inspection was conducted by Mark Brantley, Environmental
Chemist, and Hughie White, Environmental Specialist, of the Fayetteville Regional Office. The cooperation of
Philip James Schroeder, Grade III ORC, and Terry Wagers, Grade I back-up ORC, was greatly appreciated. The
facility was found to be in Compliance with permit NC0026921 however, there are several items that need to be
addressed to help ensure that the WWTP remains compliant with its NPDES permit. As a reminder, preservation
of the Waters of the State can only be achieved through consistent NPDES Permit compliance.
COMMENTS
• During the inspection it was noted that the generator has been out of service since November 2006.
Operations staff stated that the generator will start up and then shut down. Operations staff tried to start the
generator during the inspection but the battery was dead. Please have the generator repaired as soon as
possible so it can power the WWTP in times of power outages.
• The exhaust fan in the chlorine room was not operable during the time of the inspection. As a safety
precaution for the operation staff please repair the exhaust fan immediately.
• The chlorine flow pacing system was repaired recently. Please keep this system running properly to help
ensure proper disinfection of the effluent.
• The WWTP exceeded the permitted flow of 0.2 mgd six times for the calendar year of 2006. These
violations appeared to be caused by I/I problems in the collection system. The town should address this
problem immediately to help the WWTP maintain NPDES compliance. Please contact North Carolina
Rural Water for assistance in completing an I/I study on the town's collection system. They will come out
and assist the town's staff in smoke testing the collection system. It was also noted during the inspection
that the effluent flow meter was found to be off by 30,000 gallons at its last calibration on February 8,
2006. The town may find it necessary to have the flow meter calibrated every 6 months to help ensure
proper operation of the flow meter and the chlorine pacing system.
North Carolina Division of Water Quality/Aquifer Protection Section 225 Green St./ Suite 714 Fayetteville, NC 28301 Phone (910) 433-3300
FAX (910) 486-0707 Internet: h2o.enr.state.nc.us Customer Service 1-877-623-6748
One
North Carolina
;Naturally
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper
• The town has failed the toxicity testing for the last quarter of 2006 and the first quarter of 2007. It is
believed that the way the WWTP is de -chlorinating the effluent is causing the failure. Currently operations
staff is placing 3 to 4 de -chlorination tablets on a ledge at the end of the chlorine contact chamber 3 to 4
times daily. This is not a very consistent way of de -chlorinating the effluent since at times there may be too
much of the de -chlorination agent in the water and other times there may not be enough of the de -
chlorination agent. The Division of Water Quality recommends that the town install a more systematic
way of de -chlorinating the effluent instead of just placing tablets on a ledge at the end of the chlorine
contact chamber. This means installing a more reliable tablet feeder, a liquid de -chlorination system, or a
gas de -chlorination system.
• Please continue to maintain the effluent right of way in case repairs have to be made in the future to the
line.
Please respond in writing to the above mentioned comments to the Fayetteville Regional Office of the Division of
Water Quality by March 26, 2007. In your response please include an update on the plans for the Town of Parlcton
to send its wastewater to the Red Springs Waste Water Treatment Plant.
Please refer to the enclosed inspection report for additional observations and comments. If you or your staff have
any questions, please call me at 910-433-3327.
Sincerely,
AptA 64,4„a4---
Marls Brantley
Environmental Chemist
Surface Water Protection Section
Fayetteville Regional office
cc: Philip James Schroeder, ORC
Central Files
Fayetteville Files
United States Environmental Protection Agency
E PA Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection
1 INI 2 15I 31 NC0026921 111 121 07/02/21 117
Type Inspector Fac Type
18I cl 19I sI 20I II
I I I I I I I I I 1 I 1 I I I 166
Remarks
211 I I I I I I I I I I I 1 1 1 1 I I I I I 1 I I I I I I I I I
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved
671 169 70 I I 711 NI 72 I N I 731 l l 74 751 I l l I I I 180
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Parkton WWTP
Loop Rd
Parkton NC 28371
Entry Time/Date
09:00 AM 07/02/21
Permit Effective Date
04/12/01
Exit Time/Date
11:00 PM 07/02/21
Permit Expiration Date
09/07/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Philip James Schroeder/ORC/910-865-5164/
Other Facility Data
-
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Larry G Hagin,PO Box 55 Parkton NC 28371//910-858-3360/
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Schedules
as necessary)
„?-: Permit Flow Measurement . Operations & Maintenance Records/Reports
Self -Monitoring Program 1;• Sludge Handling Disposal Yr Facility Site Review Compliance
and checklists
Effluent/Receiving Waters :t,: Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Hughie White ;, i ` �^' FRO NQ//910-433-3300 Ext.708/ 3 , /'-0/
Mark Brantley iiti44.A.. 8 FRO WQ//910 433 3300 Ext.727/ 2 —.2q_c,
Signature of Management A eviewer
Belinda S Henson .' • f w 1 Agency/Office/Phone and Fax Numbers Date /�� �%
lft!!'�G�J, 11.�17 t0 FRO WQ//910-433-3300 Ext.726/ 3 -( -V 1
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1
31
NPDES yr/mo/day Inspection Type
NC0026921 I11 12I 07/02/21 117 181
0I
(cont.) 1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
The Parkton Wastewater Treatment Plant was clean and neat in appe arance at the time of the inspection.
2006 VIOLATIONS REVIEW
The WWTP exceeded the permitted flow of 0.2 mgd six times for the calendar year 2006. These violations
were caused by I/1 problems on the collection system. The town needs to address this problem immediately
to help the WWTP maintain NPDES compliance. Also the town has failed the toxicity testing for the last
quarter of 2006 and the first quarter of 2007. It is believed that the way the WWTP is de -chlorinating the
effluent is causing the failure. The Division of Water Quality recommends that the town install a more
systematic way of de -chlorinating the effluent instead of just placing tablets on a ledge at the end of the
chlorine contact chamber.
RECORDS REVIEW
The DMR's for the months of September 2006 and Novem ber 2006 were compared to laboratory bench
sheets and appeared to be in order at the time of the inspection.
Page # 2
Permit: NC0026921 Owner - Facility: Parkton WVVTP
Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation
Compliance Schedules Yes No NA NE
Is there a compliance schedule for this facility? ® ❑ ❑ ❑
Is the facility compliant with the permit and conditions for the review period? ❑ p
Comment: Please see summary page for more information.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ®❑ ❑El
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge m n n ❑
Judge, and other that are applicable?
Comment: Facility analyzes pH, dissolved oxygen levels, and sludge blankets as
process controls.
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application? ❑ ❑ gi
Is the facility as described in the permit? E33 n ❑
# Are there any special conditions for the permit? ❑ ❑ ❑
Is access to the plant site restricted to the general public? r ❑ ❑ El
Is the inspector granted access to all areas for inspection? El ❑ ❑ ❑
Comment:
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? ® ❑ ❑ n
Is all required information readily available, complete and current? ® E ❑ ❑
Are all records maintained for 3 years (lab. reg. required 5 years)? El ❑
Are analytical results consistent with data reported on DMRs? 0 El n
Is the chain -of -custody complete? ® ❑ ❑ ❑
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration 63
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? ❑ ❑ ® ❑
Page # 3
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation
Record Keeping
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?
Comment: Please place a copy of the current NPDES permit at the wastewater plant.
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: Back up ORC, Terry Wagers, states that the effluent right of way is
passable.
Flow Measurement - Effluent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
Comment: Flow meter was last calibrated on Feburary 8, 2007 by Carolina Technical
Services.
Aerobic Digester
Is the capacity adequate?
Is the mixing adequate?
Is the site free of excessive foaming in the tank?
# Is the odor acceptable?
# Is tankage available for properly waste sludge?
Comment: Facility has not wasted for some time. In fact the WWTP has been recently
seeded with some mixed liquor from the St. Pauls WWTP.
Drying Beds
Is there adequate drying bed space?
Is the sludge distribution on drying beds appropriate?
Are the drying beds free of vegetation?
Yes No NA NE
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Page # 4
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation
Drying Beds Yes No NA NE
# Is the site free of dry sludge remaining in beds? n n n
Is the site free of stockpiled sludge? n n n
Is the filtrate from sludge drying beds returned to the front of the plant? n n n
# Is the sludge disposed of through county landfill? n n n
# Is the sludge land applied? n n n
(Vacuum filters) Is polymer mixing adequate? ❑ ❑11
Comment: Drying beds are not used because the WWTP is not generating any
sludge. The WWTP is severely underloaded.
Bar Screens Yes No NA NE
Type of bar screen
a.Manual
b.Mechanical ❑
Are the bars adequately screening debris? ® ❑ n ❑
Is the screen free of excessive debris? ® ❑ n n
Is disposal of screening in compliance? m n n ❑
Is the unit in good condition? c ❑ ❑
Comment:
Secondary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater? ■ ❑ n n
Is the site free of excessive buildup of solids in center well of circular clarifier? ■ ❑ n n
Are weirs level? ® ❑ n n
Is the site free of weir blockage? ® n ❑ ❑
Is the site free of evidence of short-circuiting? ® ❑ ❑ n
Is scum removal adequate? ❑ n ■ ❑
Is the site free of excessive floating sludge? ® n ❑ n
Is the drive unit operational?
nnen
Is the return rate acceptable (low turbulence)? 'inn n
Is the overflow clear of excessive solids/pin floc? ® n n n
Is the sludge blanket level acceptable? (Approximately 'A of the sidewall depth) ® ❑ n n
Page # 5
Permit: NC0026921 Owner - Facility: Parkton wwTP
Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation
Secondary Clarifier
Comment: The sludge blankets were 2' in the number 1 clarifier and 3' in the number
2 clarifier at the time of the inspection.
Oxidation Ditches
Are the aerators operational?
Are the aerators free of excessive solids build up?
# Is the foam the proper color for the treatment process?
Does the foam cover less than 25% of the basin's surface?
Is the DO level acceptable?
Are settleometer results acceptable (> 30 minutes)?
Is the DO level acceptable?(1.0 to 3.0 mg/I)
Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes)
Comment: The dissolved oxygen level was 5.9 mg/I.
Disinfection -Gas
Are cylinders secured adequately?
Are cylinders protected from direct sunlight?
Is there adequate reserve supply of disinfectant?
Is the level of chlorine residual acceptable?
Is the contact chamber free of growth, or sludge buildup?
Is there chlorine residual prior to de -chlorination?
Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)?
If yes, then is there a Risk Management Plan on site?
If yes, then what is the EPA twelve digit ID Number? (1000 )
If yes, then when was the RMP last updated?
Comment: The chlorine level prior to de -chlorination was 4.5 mg/1 CI and 5 ug/I after
de -chlorination.
De -chlorination
Type of system ?
Is the feed ratio proportional to chlorine amount (1 to 1)?
Is storage appropriate for cylinders?
Yes No NA NE
Yes No NA NE
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Page # 6
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation
De -chlorination
# Is de -chlorination substance stored away from chlorine containers?
Are the tablets the proper size and type?
Comment: De -chlorination tablets are currently being placed on a ledge at th e end of
the chlorine contact chamber 3 to 4 times a day. Please see cover letter for more
information.
Are tablet de -chlorinators operational?
Number of tubes in use?
Comment:
Pumps-RAS-WAS
Are pumps in place?
Are pumps operational?
Are there adequate spare parts and supplies on site?
Comment:
Laboratory
Are field parameters performed by certified personnel or laboratory?
Are all other parameters(excluding field parameters) performed by a certified lab?
# Is the facility using a contract lab?
Is proper temperature set for sample storage (kept at 1.0 to 4.4 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: Facility uses TBL as their contract laboratory.
Influent Sampling
# Is composite sampling flow proportional?
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)?
Is sampling performed according to the permit?
Comment:
Effluent Sampling
Is composite sampling flow proportional?
Yes No NA NE
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Yes No NA NE
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Yes No NA NE
WHEW
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Yes No NA NE
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Page # 7
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation
Effluent Sampling Yes No NA NE
Is sample collected below all treatment units? ■ n ❑ n
Is proper volume collected? ® ❑ n ❑
Is the tubing clean? ®n n n
Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? n n n
Is the facility sampling performed as required by the permit (frequency, sampling type representative)? n n n
Ej
Comment:
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? El DEO
Comment:
Page # 8
Regional Field Inspectors Check List for Field Parameters
1 M,
'Name of site to be Inspected: Par/'/ah c,rw1 ° •Date: /=QL
Field Certification # (if applicable): ISM 0 3 _ Inspector: Niru.►
NPDES #: lV G CO a to 4 sq Region: . /2 b
I. Circle the parameteror parameters performed atthis site:
esidual Chlorine Settleable Solids, : • Conductivity; emperatur
II. Instrumentation:
A,: Does the facility have the equipment necessary to analyze field:parameters..as circled above:
A pH meter . Hac4 sens /o,
2. A Residual Chlorine meter / f.rj .74-/ c)U
3. DO meter ii5.7.— S Ts__D No
4• A Cone for settleable solids
o-ry @ , 3 a rcie i
5. A thermometer or meter tniat measures temperature Yes No
6. Conductivity meter
III: Calibration/Analysis:
1. Is the pH meter calibrated with a 2 buffers and checked.
with a third buffer each day of use? No
2. For Total Residual Chlorine, is a check standard analyzed
each day of use? es . No
3. Is the air calibration of the DO meter performed each day
of use? eS No
4. For Settleable Solids, is 1 liter of sample settled for 1 hour? Yes No
5. Is the temperature measuring device calibrated annually
against a certified thermometer? Yes No
6. For Conductivity, is a calibration standard analyzed each
day of use? —Yes Nd
Ye No . ! -7 l -"as
—cy
es No 417 y� .07