HomeMy WebLinkAboutNC0028916_Inspection_20100319sAf7A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
March 19, 2010
Grey Walls
Town of Troy
444 North Main Street .
Troy, North Carolina 27371
SUBJECT: Compliance Evaluation Inspection Report
Town of Troy WWTP
NPDES Permit No. NC0028916
Montgomery County
Dear Mr. Walls:
Dee Freeman
Secretary
Enclosed you will find a copy of the Compliance Evaluation Inspection report for
the inspection conducted on March 10, 2010, with Joe Shields (ORC). As part of the
inspection a tour of the Wastewater Treatment Plant was conducted. All observations are in
Section D. Summary of Findings/Comments of this inspection report. It is highly
recommended that a written temperature record of the Effluent 001 sample refrigerator and
the 24-hour composite sample refrigerator be kept at your facility (enclosed with this report
is an example that may be adapted for items with temperature range limits).
This facility appeared to be well operated and well maintained. Please keep up the
good work. If you have any questions or comments concerning this report or require
clarification on part(s) of this report, please contact me at (910) 433-3312.
N., Sincerely,
✓`Dale Lopez
Environmental Specialist
Enclosures: EPA Water Compliance Inspection Report
Regional Field Inspectors Check List for Field Parameters
Calendar year temperature chart
cc: ['FRO Files
225 Green St., Suite 714,-Fayetteville, NC 28301-5043
Phone: 910-433-3300 l FAX: 910-486-07071 Customer Service: 1-877-623-6748
Internet: www.ncwaterquality,org
An Equal opportunity i Affirmative Action Employer
One
North Carolina
Naturally
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 I NI 2 151 31 NC0028916 111 121 10/03/10 117
Type Inspector Fac Type
18I CI 191 SI 20I1
1 I I I I I1IIIIIIIII66
Remarks
21IIII I I I I I I I I I I I I I I I I I I I I I I I I I 1 I
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA — -----Reserved---------- --------
671 2.0 169 70 14 I 711 I 721 I 731 1 174 751 I I I 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)
Troy WWTP
650 Glen Rd
Troy NC 27371
Entry Time/Date
01:00 PM 10/03/10
Permit Effective Date
10/01/01
Exit Time/Date
03:00 PM 10/03/10
Permit Expiration Date
19/06/30
Name(s) of Onsite Representative(s)fTitles(s)/Phone and Fax Number(s)
///
Joseph Edward Shields/ORC/910-572-3661/
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
E. Gray Walls,444 N Main St Troy NC 27371//910-572-7841/9105723663 No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement • Operations & Maintenance Records/Reports
Self -Monitoring Program • Sludge Handling Disposal • Facility Site Review • Effluent/Receiving Waters
Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
t`
Name(s) and 'gnature(s) of Inspector(s) / Agency/Office/Phone and Fax Numbers Date
Dale Lopez ```+',' / / ° v FRO wQ//910-433-3300 Ext.712/
Signature of Management C4A Reviewer Agency/Office/Phone and Fax Numbers Date
isSiac& -3/19110
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1
31
NPDES
NC0028916
11 121
yr/mo/day
10/03/10
17
Inspection Type
18ICI
(cont.) 1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Enclosed you will find a copy -of the Compliance Evaluation Inspection report for the inspection conducted
on March 10, 2010, with Joe Shields (ORC). As part of the inspection a tour of the Wastewater Treatment
Plant was conducted. All observations are in Section D. Summary of Findings/Comments of this inspection
report. It is highly recommended to keep a written temperature record of the Effluent 001 sample
refrigerator and the 24-hour composite sample refrigerator. This facility appeared to be well operated and
well maintained. Please keep up the good work.
Page # 2
Permit: NC0028916 Owner - Facility: Troy VWVTP
Inspection Date: 03/10/2010 Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ n Q n
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ n n n
Judge, and other that are applicable?
Comment: No reuse water at_facility. SCADA electronic sludge judge (and manual
sludge judge cross-check).
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application? ■ n n n
Is the facility as described in the permit? ■ n n n
# Are there any special conditions for the permit? ■ n n n
Is access to the plant site restricted to the general public? • n n n
Is the inspector granted access to all areas for inspection? ■ ❑ ❑ ❑
Comment:
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? ■ n n n
Is at required information readily available, complete and current? ■ n n n
Are all records maintained for 3 years (lab. reg. required 5 years)? • n n
El
Are analytical results consistent with data reported on DMRs? ■ n n n
Is the chain -of -custody complete? ■ n n n
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? ■ n n n
Has the facility submitted its annual compliance report to users and DWQ? ■ n n n
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? n n 1 n
Is the ORC visitation log available and current? ■ n n n
Is the ORC certified at grade equal to or higher than the facility classification? ■ n n n
Is the backup operator certified at one grade less or greater than the facility classification? ■ n n n
Page # 3
Permit: NC0028916 Owner - Facility: Troy VwVTP
Inspection Date: 03/10/2010 Inspection Type: Compliance Evaluation
Record Keeping
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:
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:
Flow Measurement - Influent
# 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:
Bar Screens
Type of bar screen
a.Manual
b. Mechanical
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Is disposal of screening in compliance?
Is the unit in good condition?
Comment: The flow through the manual bar screen (with approximately 1 to 2 inch
openings) was in series with the mechanical bar screen. The manual bar screen did
not allow large material to pass through to the mechanical bar screen (stainless steel
"low -flow screen" that was manufactured by Jones & Atwood). The screenings were
taken to the Uharrie Landfill.
Grit Removal
Type of grit removal
a.Manual
b. Mechanical
Yes No NA NE
■nnn
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Yes No NA NE
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Yes No NA NE
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Yes No NA NE
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Yes No NA NE
n
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Page # 4
Permit: NC0028916 Owner - Facility: Troy wVVrP
Inspection Date: 03/10/2010
Inspection Type: Compliance Evaluation
Grit Removal
Is the grit free of excessive organic matter?
Is the grit free of excessive odor?
# Is disposal of grit in compliance?
Comment: The grit remaoval equipment was periodically aerated, then an air lift pump
carried the grit up a pipe to the grit classifier for dewatering, then to a dumpster, and
finally to the Uharrie Landfill.
Equalization Basins
Is the basin aerated?
Is the basin free of bypass lines or structures to the natural environment?
Is the basin free of excessive grease?
Are all pumps present?
Are all pumps operable?
Are float controls operable?
Are audible and visual alarms operable?
# Is basin size/volume adequate?
Comment: When the influent flow exceeded 1.2 MGD, the flow would then enter the
ten -acre equalization basin (via a valve -less pipe from the influent wet well). Each of
the two influent pumps were capable of handling 1.2 MGD of flow. They alternated
each time that they came on. The flow to the EQ was later fed back into the WWTP for
treatment of the wastewater.
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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Yes No NA NE
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Yes No NA NE
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Page # 5
Permit: NC0028916 Owner - Facility: Troy WVVTP
Inspection Date: 03/10/2010 Inspection Type: Compliance Evaluation
Secondary Clarifier
Comment:
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 two oxidation ditches were operated in series.
Disinfection - UV
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?
Is effluent clear and free of solids?
Comment:
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?
Comment: No automatic switchover, only a manually operated generator. On an
approximate monthly schedule, the generator was tested under Toad.
Pumps-RAS-WAS
Yes No NA NE
Yes No NA NE
"'Finn
■ Finn
■ Finn
■ Finn
■ Finn
■ Finn
■ Finn
■ Finn
Yes No NA NE
■ Finn
■ Finn
■ Finn
■ Finn
1 n n n
■ Finn
Yes No NA NE
n■Fin
■ Finn
■ Finn
nn■n
■ Finn
■ Finn
■ Finn
Yes No NA NE
Page # 6
Permit: NC0028916 Owner - Facility: Troy WN TP
Inspection Date: 03/10/2010 Inspection Type: Compliance Evaluation
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 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: It is highly recommend that the facility keep a temperature chart (record)
for the laboratory sample refrigerator and the effluent 24-hour sample composite
refrigerator. For your review, an example annual temperature range chart is enclosed
with this report. It may also be adapted to other items with temperature range limits.
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: It is highly recommend to keep a temperature chart (record) for the 24-hour
composite sample refrigerator.
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:
Yes No NA NE
■ ODD
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Yes No NA NE
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n oun
W HEW
Yes No NA NE
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■ .nnn
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Yes No NA NE
■ ❑ ❑ ❑
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Page # 7
Regional Field Inspectors Check List for Field Parameters
Name of site to be Inspected:
Troy Date: 03/10/21010
Field certification # (if applicable): 5350 Inspector: Dale Lopez"It,Y^
NPDES #: NC0028916
Region: Fayetteville
I. Circle the parameter or parameters performed at this site.
Residual Chlorine, Settleable Solids, pH, DO, Conductivity,
II. Instrumentation:
A. Does the facility have the equipment necessary to analyze field parameters as circled above?
Temperature
1. A pH meter
Fischer Accumet pH meter 50
2. A Residual Chlorine meter
3. DO meter
YS 155
4. A Cone for settleable solids
5. A thermometer or meter that measures temperature.
fYS 155
6. Conductivity meter
III. Calibration/Analysis:
1. Is the pH meter calibrated with 2 buffers and
checked with a third buffer each day of use? fYes No
Yes
No
Yes . No
Yes
No
Yes No
NYes
No
2. For Total Residual Chlorine, is a check standard
analyzed each day of use?
3. Is the air calibration of the DO meter performed
each day of use?
4. For Settleable Solids, is 1 liter of sample
settled for 1 hour?
5. Is the temperature measuring device calibrated
annually against a certified thermometer?
6. For Conductivity, is a calibration standard
analyzed each day of use?
Yes No
Yes
No
Yes No
Yes No
Yes No
Yes No
IV. Documentation:
1. Is the date and time that the sample was collected documented? 1Yes No
2. Is the sample site documented? fres No
3. Is the sample collector documented? lYes No
4. Is the analysis date and time documented? IYes No
5. Did the analyst sign the documentation? fres No
6. Is record of calibration documented? IYes No
7. For Settleable Solids, is sample volume and
1 hour time settling time documented? Yes No
8. For Temperature, is the annual calibration of
the measuring device documented?
Comments:
pH Buffer 7 expiration date = January 2011
pH Buffer 4 expiration date = January 2011
pH Buffer 10 expiration date = April 2010
Yes No
Please submit a copy of this completed form to the Laboratory Certification Program.
DWQ Lab Certification
Chemistry Lab
Courier # 52-01-01
FIELD INSPECTOR CHECKLIST REV. 04/23/2002
Item:
Calendar Year:
Acceptable Temperature Range:
Date
Jan
Feb
Mar
Apr .
May
Jun
Jul
Aug
Sept
Oct
Nov
Dec
1
2
3
4
5
6
.
7
8
9
10
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12
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15
16
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19
20
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