HomeMy WebLinkAboutNC0028916_CSI inspection report_20230512United 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 NCO028916 I11 121 23/03/28 I17 18I � I 19 I s I 201
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
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)
09:30AM 23/03/28
21/02/01
Troy WWTP
650 Glen Rd
Exit Time/Date
Permit Expiration Date
Troy NC 27371
12:30PM 23/03/28
25/06/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Bryan K Bowles/ORC/704-474-4191/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Benny Ray Dennis,315 N Main St Troy NC 27371//910-572-6541/9105723663
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:
Hughie White Ai;,, ? ka� , DWR/FRO WQ/910-433-3300 Ext.708/ 5/12/2023
49E06C80007E432...
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
DocuSigned by:
Mark Brantle AtA fyR/Division of Water Quality/910-433-3300 Ext.727/ 5/12/2023
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#
NPDES yr/mo/day Inspection Type
NCO028916 I11 12I 23/03/28 117 18 i s i
(Cont.)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
All records and log books appeared to be very well organized and maintained. A copy of the current
NPDES permit and the most recent annual compliance report was available for review. The ORC
visitation log appeared to be complete and current. Calibration records for equipment appeared to
be properly documented. Laboratory data was reviewed and all data that was reviewed appeared to
be correct, as reported on the DMR's. All treatment units appeared to be operated and maintained
satisfactorily. This facility is currently in the process of updating the bar screen and grit removal
system. At the time of this inspection, the effluent appeared to be clear with no visible solids present.
As part of this inspection, effluent samples were collected and sent to the Divsion of Water Resources
laboratory for analysis. The results of the samples are listed below:
Fecal Coliform: 52 CFU/100ml
BOD: 19 mg/L
NHI 0.07 mg/L
NO2+NO3: 27 mg/L
Total Phosphorus: 3.5 mg/L
TKN: 3.4 mg/L
Suspended Residue: 18 mg/L
Page#
Permit: NCO028916
Inspection Date: 03/28/2023
Owner -Facility: Troy WWTP
Inspection Type: Compliance Sampling
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:
Permit
Yes
No
NA
NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
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0
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application?
Is the facility as described in the permit?
0
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# Are there any special conditions for the permit?
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Is access to the plant site restricted to the general public?
0
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Is the inspector granted access to all areas for inspection?
0
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Comment:
Record Keeping
Yes
No
NA
NE
Are records kept and maintained as required by the permit?
0
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Is all required information readily available, complete and current?
0
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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?
0
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Is the chain -of -custody complete?
0
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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?
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Has the facility submitted its annual compliance report to users and DWQ?
0
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(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified
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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?
Page# 3
Permit: NC0028916 Owner -Facility:
Inspection Date: 03/28/2023 Inspection Type:
Troy WWTP
Compliance Sampling
Record Keeping
Yes
No
NA
NE
Is a copy of the current NPDES permit available on site?
0
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Facility has copy of previous year's Annual Report on file for review?
0
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Comment:
Bar Screens
Yes
No
NA
NE
Type of bar screen
a.Manual
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b.Mechanical
Are the bars adequately screening debris?
0
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Is the screen free of excessive debris?
0
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Is disposal of screening in compliance?
0
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Is the unit in good condition?
0
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Comment:
Grit Removal
Yes
No
NA
NE
Type of grit removal
a.Manual
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b.Mechanical
Is the grit free of excessive organic matter?
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Is the grit free of excessive odor?
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# Is disposal of grit in compliance?
0
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Comment:
Pump Station - Influent
Yes
No
NA
NE
Is the pump wet well free of bypass lines or structures?
0
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Is the wet well free of excessive grease?
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Are all pumps present?
0
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Are all pumps operable?
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Are float controls operable?
0
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Is SCADA telemetry available and operational?
0
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Is audible and visual alarm available and operational?
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Comment:
Page# 4
Permit: NCO028916 Owner -Facility:
Inspection Date: 03/28/2023 Inspection Type:
Troy WWTP
Compliance Sampling
Oxidation Ditches
Yes
No
NA
NE
Are the aerators operational?
0
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Are the aerators free of excessive solids build up?
0
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# Is the foam the proper color for the treatment process?
0
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Does the foam cover less than 25% of the basin's surface?
0
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Is the DO level acceptable?
0
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Are settleometer results acceptable (> 30 minutes)?
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Is the DO level acceptable?(1.0 to 3.0 mg/I)
0
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Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes)
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Comment:
Secondary Clarifier
Yes
No
NA
NE
Is the clarifier free of black and odorous wastewater?
0
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Is the site free of excessive buildup of solids in center well of circular clarifier?
0
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Are weirs level?
0
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Is the site free of weir blockage?
■
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Is the site free of evidence of short-circuiting?
0
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Is scum removal adequate?
0
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Is the site free of excessive floating sludge?
0
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Is the drive unit operational?
0
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Is the return rate acceptable (low turbulence)?
0
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Is the overflow clear of excessive solids/pin floc?
0
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Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth)
0
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Comment:
Disinfection - UV
Yes
No
NA
NE
Are extra UV bulbs available on site?
0
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Are UV bulbs clean?
0
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Is UV intensity adequate?
■
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Is transmittance at or above designed level?
0
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Is there a backup system on site?
0
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Is effluent clear and free of solids?
0
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Comment:
Page# 5
Permit: NC0028916
Inspection Date: 03/28/2023
Owner -Facility: Troy WWTP
Inspection Type: Compliance Sampling
Disinfection -Liquid
Is there adequate reserve supply of disinfectant?
(Sodium Hypochlorite) Is pump feed system operational?
Is bulk storage tank containment area adequate? (free of leaks/open drains)
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?
Comment:
De -chlorination
Type of system ?
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?
Comment:
Are the tablets the proper size and type?
Are tablet de -chlorinators operational?
Number of tubes in use?
Comment:
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:
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?
Yes
No
NA
NE
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Yes
No
NA
NE
Liquid
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Yes No NA NE
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Yes No NA NE
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Page# 6
Permit: NC0028916
Inspection Date: 03/28/2023
Solids Handling Equipment
Owner -Facility: Troy WWTP
Inspection Type: Compliance Sampling
Is the site free of excessive moisture in belt filter press sludge cake?
The facility has an approved sludge management plan?
Comment:
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:
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:
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: The generator was not tested during this inspection but it is load tested
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
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Page# 7
Permit: NCO028916
Inspection Date: 03/28/2023
Influent Sampling
# Is composite sampling flow proportional?
Is sample collected above side streams?
Owner -Facility: Troy WWTP
Inspection Type: Compliance Sampling
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 sampling performed according to the permit?
Comment:
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?
Comment:
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# 8