NC0023906_Compliance Evaluation Inspection_20200326

ROY COOPER
Governor
MICHAEL S. REGAN
Secretory
S. DANIEL SMITH
Director
Mr. Jimmy Pridgen
Water Reclamation Manager
City of Wilson
P.O. Box 10
Wilson, NC 27894-0010
Dear Mr. Pridgen:
NORTH CAROLINA
Environmental Quality
March 26, 2020
Subject: Compliance Evaluation Inspection
City of Wilson -Hominy Creek WWTP
NPDES Permit No. NCO023906
Wilson County
On March 19, 2020, Josh Brigham of the Raleigh Regional Office (PRO) conducted an inspection at the
subject facility. The cooperation of Nick Eatmon, Andrew Mlot, and yourself was greatly appreciated.
Findings during the inspection were as follows:
1. The current NPDES permit was issued effective October 1, 2015 and expired May 31, 2019. The
division received your Permit Renewal Request December, 3' 2018 and it is currently under
review. Please continue to operate under the last issued permit.
2. The 14 MGD WRF plant consists of the following units: Influent pump station with four (4) VFD
pumps; three (3) mechanical bar screens; one (1) manual bar screen; two (2) vortex grit
collectors; two (2) grit classifiers; screenings compactor; influent ultrasonic flow meter; two (2)
equalization basins; one (1) biological phosphorus removal tank; three (3) primary clarifiers;
seven (7) aeration basins; five (5) secondary clarifiers; methanol feed facility; five (5) deep bed
denitrification filters; sodium hypochlorite disinfection tank; reaeration basin with sodium
bisulfate dechlorination; effluent ultrasonic flow meter; one (1) reuse water basin; a reclaim water
facility; one (1) plastic lined reclaimed water pond; four (4) anaerobic digesters heated by natural
gas or methane generated from digesters; a sludge thickening and dewatering building with two
(2) gravity belt thickeners (GBT), two (2) belt filter presses (BFP), three (3) return waste
activated sludge pump stations; a ten -ton per day alkaline sludge stabilization facility capable of
producing Class A and Class B dewatered sludge; three (3) liquid sludge holding tanks; sludge
drying beds; and a septage receiving station.
3. A review of discharge monitoring report (DMR) data for the period of March 2018 through
March 2020 showed one monitoring report violation for March 2018, however this has since been
resolved. All other required monitoring was performed and the facility complied with all permit
limits.
4. A cursory review of laboratory and DMR data for November 2019 showed consistent reporting of
results.
QNorth Carolina Department of Environmental Quality I Division of Water Resources
Raleigh Regional Office 13800 Banrtt Drive I Raleigh. North Carolina 27609
�0"d\ 919.791.4200

5. A cursory review of calibration logs and lab instrumentation showed acceptable calibration for
the on -site parameters. Calibration standards and reagents were all within expiration dates.
6. Mr. Pridgen stated their sludge is Class B. It is stored under a shelter and was taking up
approximately 50% of the floor during the inspection. Granville Farms hauls their Class B sludge
as needed and it is either composted or land applied.
7. Solids handling equipment was observed and found to be operating normally.
8. The influent headworks was found to be operating normally.
9. Both equalization basins were nearly empty at the time of the inspection.
10. The influent ultrasonic flow meter was calibrated on October 24, 2019.
11. The influent composite sampler is programmed flow proportionally to collect 140 ml every 30
pulses. The refrigerated units were maintained at the proper temperature, < 6 degrees C.
12. All primary clarifiers were inspected and the weirs were level. A sludge judge showed clarifier
one to have a sludge depth of 5.5 feet, and clarifier two to have a sludge depth of 4 feet. Clarifier
three was not in use at the time of inspection
13. The seven aeration basins appeared to be operating satisfactorily. There was foam on
approximately 30% of the surface of each basin. This did not appear to be affecting the treatment
efficiency of the units and Mr. Pridgen stated the amount of foam is typical for the plant.
14. The five secondary clarifier weirs are covered. Clarifier one had a sludge depth of 7.5 feet,
clarifier two 4 feet, clarifier three 4 feet, clarifier four 4.5 feet, and clarifier five 2.5 feet. Sludge
was collecting in the center well of the clarifiers, however a sprayer is used to resolve this.
15. The tertiary sand filters appeared to be operating satisfactorily. The filtered effluent appeared
clear and free of solids.
16. The secondary effluent composite sampler is programmed flow proportionally to collect 200 ml
every 48 pulses. The refrigerated units were maintained at the proper temperature, < 6 degrees C.
17. The effluent ultrasonic flow meter was calibrated on October 24, 2019. The effluent was clear
and free of solids.
18. Examination of chemical storage for disinfection and dechlorination liquids showed no problems.
19. The influent pump station had one pump out, but was running satisfactorily with the other pumps.
20. Mr. Pridgen stated the onsite generator is tested daily and can power the entire treatment plant.
The generator is also tested right before a storm and under load twice a year.
21. The operators log was found to be up to date with satisfactory documentation.
22. The effluent discharge appeared free of excess solids and foam. No detrimental impacts to
Contentnea Creek were observed.

If you have questions concerning this report please contact 919-791-4251 or
Lua. bri gham@ncdenr. aov.
Sincerely,
Scott Vinson, Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office, Division of Water Resources, NCDEQ
ATTACHMENTS
EPA Water Compliance Inspection Report
Cc: RRO Files
Laserfiche

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 yrlmolday Inspection Type Inspector Fac Type
1 IN 1 2 15 1 3 NCO023906 Ill 12 20/03/19 17 18 ICI 191 s 1 20u
� _ , tL—JI
21 6
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 OA Reserved
67 70 U 71 L I 72 I ti I 73 � 74 7 80
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 permit Number)
09:00AM 20/03/19
15/10/01
Wilson WWfP
Exit Time/Dale Permit Expiration Date
3100 Stanlonsburg Rd
Wison NC 27893
01:00PM 20/03/19 19/05/31
Name(s) of Onsite Representative(s)Mlles(s)1Phone and Fax Number(s)
Other Facility Data
Ill
Name, Address of Responsible OfficialMtle/Phone and Fax Number
Russell P Brice,PO Box 10 Wilson NC 2789400101Plant Manager1252-399-24911 Contacted
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement N Operations & Maintenar E Records/Reports
Self -Monitoring Progran Sludge Handling Dispo: E Facility Site Review 0 Effluent/Receiving Wate
Laboratory
Section D: Summary of FindinglComments (Attach additional sheets or narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) AgencylOfficelPhone and Fax Numbers Date
Joshua S Brigham DWRlRRO WQ1919-79142001
ignature of Mana ement Q AReviewer AgencylO ice/Phone and Fax Numbers Date
3%61zOz2
I
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yrlmolday inspection Type (Cont.)
31 NCoa23906 " 1 20103119 17 18 1 � I
Section D: Summary of FindinglComments (Attach additional sheets of narrative and checklists as necessary)
1. The current NPDES permit was issued effective October 1, 2015 and expired May 31, 2019. The
division received your Permit Renewal Request December, 3rd 2018 and it is currently under review.
Please continue to operate under the last issued permit.
2. The 14 MGD WRF plant consists of the following units: Influent pump station with four (4) VFD
pumps; three (3) mechanical bar screens; one (1) manual bar screen; two (2) vortex grit collectors;
two (2) grit classifiers; screenings compactor; influent ultrasonic flow meter; two (2) equalization
basins; one (1) biological phosphorus removal tank; three (3) primary clarifiers; seven (7) aeration
basins; five (5) secondary clarifiers; methanol feed facility; five (5) deep bed denitrification filters;
sodium hypochlorite disinfection tank; reaeration basin with sodium bisulfate dechlorination; effluent
ultrasonic flow meter, one (1) reuse water basin; a reclaim water facility; one (1) plastic lined reclaimed
water pond; four (4) anaerobic digesters heated by natural gas or methane generated from digesters; a
sludge thickening and dewatering building with two (2) gravity belt thickeners (GBT), two (2) belt filter
presses (BFP), three (3) return waste activated sludge pump stations; a ten -ton per day alkaline sludge
stabilization facility capable of producing Class A and Class B dewatered sludge; three (3) liquid sludge
holding tanks; sludge drying beds; and a septage receiving station.
3. A review of discharge monitoring report (DMR) data for the period of March 2018 through March
2020 showed one monitoring report violation for March 2018, however this has since been resolved. Al
other required monitoring was performed and the facility complied with all permit limits.
4. A cursory review of laboratory and DMR data for November 2019 showed consistent reporting of
results.
5. A cursory review of calibration logs and lab instrumentation showed acceptable calibration for the
on -site parameters. Calibration standards and reagents were all within expiration dates.
6. Mr. Pridgen stated their sludge is Class B. It is stored under a shelter and was taking up
approximately 50% of the floor during the inspection. Granville Farms hauls their Class B sludge as
needed and it is either composted or land applied.
7. Solids handling equipment was observed and found to be operating normally.
8. The influent headworks was found to be operating normally.
9. Both equalization basins were nearly empty at the time of the inspection.
10. The influent ultrasonic flow meter was calibrated on October 24, 2019.
11. The influent composite sampler is programmed flow proportionally to collect 140 ml every 30
pulses. The refrigerated units were maintained at the proper temperature, < 6 degrees C.
12. All primary clarifiers were inspected and the weirs were level. A sludge judge showed clarifier one
to have a sludge depth of 5.5 feet, and clarifier two to have a sludge depth of 4 feet. Clarifier three was
not in use at the time of inspection
13. The seven aeration basins appeared to be operating satisfactorily. There was foam on
approximately 30% of the surface of each basin. This did not appear to be affecting the treatment
efficiency of the units and Mr. Pridgen stated the amount of foam is typical for the plant.
Page#

Permit: NCO023906 Owner - Facility: Wilson VVVVTP
Inspection Date: 03/19/2020 Inspection Type: Compliance Evaluation
14. The five secondary clarifier weirs are covered. Clarifier one had a sludge depth of 7.5 feet, clarifier
two 4 feet, clarifier three 4 feet, clarifier four 4.5 feet, and clarifier five 2.5 feet. Sludge was collecting in
the center well of the clarifiers, however a sprayer is used to resolve this.
15. The tertiary sand filters appeared to be operating satisfactorily. The filtered effluent appeared clear
and free of solids.
16. The secondary effluent composite sampler is programmed flow proportionally to collect 200 ml
every 48 pulses. The refrigerated units were maintained at the proper temperature, < 6 degrees C.
17. The effluent ultrasonic flow meter was calibrated on October 24, 2019. The effluent was clear and
free of solids.
18. Examination of chemical storage for disinfection and dechlorination liquids showed no problems.
19. The influent pump station had one pump out, but was running satisfactorily with the other pumps.
20. Mr. Pridgen stated the onsite generator is tested daily and can power the entire treatment plant. Thi
generator is also tested right before a storm and under load twice a year.
21. The operators log was found to be up to date with satisfactory documentation.
22. The effluent discharge appeared free of excess solids and foam. No detrimental impacts to
Contentnea Creek were observed.
Page#

Permit: NCO023906 Owner - Facility. Wilson VOMP
Inspection Date: 03119/2020 Inspection Type: Compliance Evaluation
Operations & Maintenance
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment:
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?
Yes No NA NE
❑ ❑ ❑
❑ Cl ❑
Yes No NA NE
■ ❑ ❑ ❑
M ❑ ❑ ❑
❑ ❑ ■ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
Comment: The division received your Permit Renewal Request December, 3rd 2018 and it is currently
under review.
Record Keeping
Yes
No NA NE
Are records kept and maintained as required by the permit?
0
❑
❑
❑
Is all required information readily available, complete and current?
M
❑
❑
❑
Are all records maintained for 3 years (lab. reg. required 5 years)?
0
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
0
❑
❑
❑
Is the chain -of -custody complete?
0
❑
❑
❑
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 DWO?
❑
❑
❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 2417 with a certified operato
❑
❑
❑
on each shift?
is the ORC visitation log available and current?
M
❑
❑
❑
Is the ORC certified at grade equal to or higher than the facility classification?
0
❑
❑
❑
Is the backup operator certified at one grade less or greater than the facility classification'
M
❑
❑
❑
Is a copy of the current NPDES permit available on site?
0
❑
❑
❑
Page#
4

Permit: NCO023906
Inspection pate: 03/19/2020
Record Keepina
Owner -Facility: WilsonVWViP
Inspection Type: Compliance Evaluation
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?
Yes No NA NE
M ❑ ❑ ❑
Yes
No
NA NE
❑
❑
❑
■
❑
❑
❑
❑
❑
■
❑
Comment: The effluent discharge a eared free of excess solids and foam. No detrimental im acts to
Contentnea Creek were observed.
Flow Measurement - Influent
Yes
No
NA NE
# Is flow meter used for reporting?
❑
M
❑
❑
Is flow meter calibrated annually?
M
❑
❑
❑
Is the flow meter operational?
0
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
❑
Comment: Flow meter was calibrated on 10.24.19. linked to Scada
Flow Measurement - Effluent
Yes
No
NA NE
# Is flow meter used for reporting?
0
❑
❑
❑
Is flow meter calibrated annually?
0
❑
❑
❑
Is the flow meter operational?
0
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
M
❑
Comment: Flow meter was calibrated 10.24.19
Anaerobic Di ester
Yes
No NA NE
Type of operation:
Floating cover
Is the capacity adequate?
0
❑
❑
❑
# Is gas stored on site?
M
❑
❑
❑
Is the digester(s) free of tilting covers?
0
❑
❑
❑
Is the gas burner operational?
0
❑
❑
❑
Is the digester heated?
0
❑
❑
❑
Is the temperature maintained constantly?
0
❑
❑
❑
Is tankage available for properly waste sludge?
0
❑
❑
❑
page# 5

Permit: NCO023906 Owner- Facility: Wilson WVVTP
Inspection Date: 03/19/2020 Inspection Type: Compliance Evaluation
Anaerobic Digester Yes No NA NE
Comment: All di esters were operational at time of inspection.
Drying Beds
Yes No NA NE
Is there adequate drying bed space?
N
Cl
❑
❑
Is the sludge distribution on drying beds appropriate?
M
❑
❑
❑
Are the drying beds free of vegetation?
■
❑
❑
❑
# Is the site free of dry sludge remaining in beds?
0
❑
❑
❑
Is the site free of stockpiled sludge?
0
❑
❑
❑
Is the filtrate from sludge drying beds returned to the front of the plant?
M
❑
❑
❑
# Is the sludge disposed of through county landfill?
M
❑
❑
❑
# Is the sludge land applied?
❑
■
❑
❑
(Vacuum filters) Is polymer mixing adequate?
❑
❑
■
❑
Comment: 16 total d[ying beds 11 in use. Sludge goes to Sampson Co. Not land apDlied
Solids Handling Equipment
Yes
No
NA NE
Is the equipment operational?
❑
❑
❑
Is the chemical feed equipment operational?
❑
❑
❑
Is storage adequate?
M
❑
❑
❑
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?
❑
❑
❑
Is the site free of excessive moisture in belt filter press sludge cake?
M
❑
❑
❑
The facility has an approved sludge management plan?
M
❑
❑
❑
Comment: Two GBT and 2 BFP were in operation. Class B biosolids took up approximately 50% of the
floor which are stored under shelter.
Chemical Feed
Yes No NA NE
Is containment adequate?
N
❑
❑
❑
Is storage adequate?
0
❑
❑
❑
Are backup pumps available?
■
❑
❑
❑
Is the site free of excessive leaking?
N
❑
❑
❑
Comment: MicroC 3000 is used in the aeration basins.
Pump Station - Influent Yes No NA NE
Is the pump wet well free of bypass lines or structures? 0 ❑ ❑ ❑
Page# 6

Permit: NCO023906 Owner - Facility: Wilson VVWTP
Inspection Date: 0311912020 Inspection Type: Compliance Evaluation
Pump Station - Influent Yes No NA NE
Is the wet well free of excessive grease?
❑
❑
110
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?
M
❑
❑
❑
Comment: Pump one was out of service during inspection.
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?
N
11011
Is the unit in good condition?
0
❑
❑
❑
Comment: One mechanical bar screen was being operated.
Grit Removal
Yes
No NA NE
Type of grit removal
a.Manual
❑
b.Mechanical
Is the grit free of excessive organic matter?
E
❑
❑ ❑
Is the grit free of excessive odor?
0
❑
❑ ❑
# Is disposal of grit in compliance?
0
❑
❑ ❑
Comment: One vortex cirit collector and one rit classifier were being operated.
Equalization Basins
Yes
No
NA NE
Is the basin aerated?
❑
❑
❑
Is the basin free of bypass lines or structures to the natural environment?
❑
❑
❑
Is the basin free of excessive grease?
0
❑
❑
❑
Are all pumps present?
0
❑
❑
❑
Are all pumps operable?
0
❑
❑
❑
Page# 7

Permit: NCO023906
owner- Facility: Wilson VWVfP
Inspection Date: 03/19/2020
Inspection Type: Compliance Evaluation
Equalization Basins
Yes No NA NE
Are float controls operable?
■
❑
❑
❑
Are audible and visual alarms operable?
❑
❑
■
❑
# Is basin size/volume adequate?
■
❑
❑
❑
Comment: Both EQ basins were nearly empty.
Primary Clarifier
Yes No
NA
NE
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 sludge blanket level acceptable?
■
❑
❑
❑
Is the sludge blanket level acceptable? (Approximately % of the sidewall depth)
❑
■
❑
❑
Comment: Two primary clarifiers were currently,in use. A sludge 'ud a showed clarifier one to have a
sludge depth of 5.5 feet and clarifier two to have a sludge depth of 4 feet. Both had a side
wall depth of 10.5ft
Secondary Clarifier
Yes No NA NE
Is the clarifier free of black and odorous wastewater?
■
❑
❑
❑
Is the site free of excessive buildup of solids in center well of circular clarifier?
M
❑
❑
❑
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 % of the sidewall depth)
❑
■
❑
❑
Comment: Weirs are covered preventing inspection. Clarifier one had a sludge depth of 7.5 feet 16ft
wall clarifier two 4 feet 0 Oft wall clarifier three 4 feet 1 Oft wall clarifier four 4.5 feet 12ft
wall), and clarifier five 2.5 feet 02ft wall).
Page# 8

Permit: NCO023906 Owner - Facility: Wilson 0ANTP
Inspection Date: 03/19/2020 Inspection Type: Compliance Evaluation
Secondary Clarifier Yes No NA NE
Aeration Basins
Yes
No NA NE
Mode of operation
Ext. Air
Type of aeration system
Diffused
Is the basin free of dead spots?
❑
❑
❑
Are surface aerators and mixers operational?
❑
❑
❑
Are the diffusers operational?
❑
❑
❑
Is the foam the proper color for the treatment process?
E
❑
❑
❑
Does the foam cover less than 25% of the basin's surface?
❑
0
❑
❑
Is the DO level acceptable?
0
❑
❑
❑
Is the DO level acceptable?(1.0 to 3.0 mgll)
0
❑
❑
❑
Comment: Foam covered 30-40% of the surface, which is normal for this plant.
Nutrient Removal
Yes
No
NA NE
# Is total nitrogen removal required?
N
❑
❑
❑
# Is total phosphorous removal required?
0
❑
❑
❑
Type
Biological
# Is chemical feed required to sustain process?
❑
N
❑
❑
Is nutrient removal process operating properly?
0
❑
❑
❑
Comment: MicroC 3000 is used to reduce phosphorus and nitrogen levels.
Filtration (High Rate Tertiary)
Yes
No NA NE
Type of operation:
Down flow
Is the filter media present?
❑
❑
❑
Is the filter surface free of clogging?
❑
❑
❑
Is the filter free of growth?
0
❑
❑
Cl
Is the air scour operational?
0
❑
❑
❑
Is the scouring acceptable?
N
❑
❑
Cl
Is the clear well free of excessive solids and filter media?
E
❑
❑
❑
Comment: Effluent appeared clear in wet well.
De -chlorination Yes No NA NE
Type of system ? Liquid
Page# 9

Permit: NCO023906 Owner - Facility.
Wilson WWTP
Inspection Date: 03/19/2020 Inspection Type:
Compliance Evaluation
De -chlorination
Yes No NA NE
Is the feed ratio proportional to chlorine amount (1 to 1)?
M
❑
❑
❑
Is storage appropriate for cylinders?
❑
❑
M
❑
# is de -chlorination substance stored away from chlorine containers?
0
❑
❑
❑
Comment:
Are the tablets the proper size and type? ❑ ❑ 0 ❑
Are tablet de -chlorinators operational? 0000
Number of tubes in use?
Comment:
Standby Power
Yes No NA NE
Is automatically activated standby power available?
0
❑
❑
❑
Is the generator tested by interrupting primary power source?
0
❑
❑
❑
Is the generator tested under load?
M
❑
❑
❑
Was generator tested & operational during the inspection?
❑
0
❑
❑
Do the generator(s) have adequate capacity to operate the entire wastewater site?
M
❑
❑
❑
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
M
❑
❑
❑
Is the generator fuel level monitored?
0
❑
❑
❑
Comment: Tested under load two times a year.
Pumps-RAS-WAS Yes No NA NE
Are pumps in place? 0 ❑ ❑ ❑
Are pumps operational? ❑ ❑ ❑
Are there adequate spare parts and supplies on site? ❑ ❑ ❑
Comment:
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?
■
❑
❑
❑
# Is the facility using a contract lab?
0
❑
❑
❑
# 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?
0
❑
❑
❑
Incubator (BOD) set to 20.0 degrees Celsius +1- 1.0 degrees?
0
❑
❑
❑
Page# 10

Permit: NCO023906 Owner -Facility: Wilson 1NWCP
Inspection [late: 03/1912020 Inspection Type: Compliance Evaluation
Laboratory
Yes No NA NE
Comment: ETS is used for toxicity. pace is used for metals. Cn, oil and grease. Pace in Charlotte is
used for low level Fig, and „PPS.
Disinfection -Liquid
Yes
No NA NE
Is there adequate reserve supply of disinfectant?
■
❑
❑
❑
(Sodium Hypochlorite) Is pump feed system operational?
N
❑
❑
❑
Is bulk storage tank containment area adequate? (free of leaks/open drains)
N❑
❑
❑
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?
❑
❑
❑
Comment:
Influent Sampling
Yes
No NA NE
# Is composite sampling flow proportional?
❑
❑
❑
Is sample collected above side streams?
❑
❑
❑
Is proper volume collected?
❑
❑
❑
Is the tubing clean?
M
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
0
❑
❑
❑
Celsius)?
Is sampling performed according to the permit?
0
❑
❑
❑
Comment: Sampler temperature was 0.5 degrees C.
Effluent Sampling
Yes No NA NE
Is composite sampling flow proportional?
0
❑
❑
❑
Is sample collected below all treatment units?
0
❑
❑
❑
Is proper volume collected?
0
❑
❑
❑
Is the tubing clean?
0
❑
❑
❑
# is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
M
❑
❑
❑
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
❑
❑
❑
representative)?
Comment: Samplier temperature was 4 degrees C.
Page# 11