NC0036684_Inspection_20180618

DocuSign Envelope ID: 5AAC1142-4ECB-4AAC-A4DD-D34608375AB8
WQterilZesou CeS
EHWROMMEWAl QUALITY
June 18, 2018
Matthew Klein
Carolina Water Service Inc of North Carolina
PO Box 240908
Charlotte, NC 28224-0908
SUBJECT: Compliance Inspection Report
Bent Creek WWTP
NPDES WW Permit No. NCO036684
Buncombe County
Dear Permittee:
ROY COOPER
Gorerna,
MICHAEL S. REGAN
Sacre��
LT -NDA CFULPEPPER
lhJ err m Direclar
The North Carolina Division of Water Resources conducted an inspection of the Bent Creek
WWTP on 6/06/2018. This inspection was conducted to verify that the facility is operating in
compliance with the conditions and limitations specified in NPDES WW Permit No. NC0036684.
The findings and comments noted during this inspection are provided in the enclosed copy of
the inspection report entitled "Compliance Inspection Report".
There were no significant issues or findings noted during the inspection and therefore, a
response to this inspection report is not required.
If you should have any questions, please do not hesitate to contact me at 828-296-4500 or
via email at [e-mail].
Sincerely,
DocuSigned by:
6C38CDE2B5CF449...
Linda Wiggs
Asheville Regional Office
Division of Water Resources, NCDEQ
ATTACHMENTS -Inspection Report
Cc: WQS Asheville Regional Office Server
Laserfiche
State of North Carolina I Environmental Quality I Water Resources
2090 U.S. 70 Highway, Swannanoa, NC 28778
828-296-4500

DocuSign Envelope ID: 5AAC1142-4ECB-4AAC-A4DD-D34608375AB8
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 yr/mo/day Inspection Type Inspector Fac Type
1 IN 1 2 15 I 3 I NCO036684 111 12 I 18/06/06 I17 18 I S J 19 LG] 201 I
211111 1 1 1 1 1 111 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 111 1 1 1 1 1 166
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ----------------------Reserved-------------------
67 70 I I 71 I I 72 I r l 73 � 74 751 I I I 1 1 1 I80
u ty I I
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 oermit Number)
01:30PM 18/06/06
16/01/01
Bent Creek WWTP
3 Donnybrook Ct
Exit Time/Date
Permit Expiration Date
Asheville INC 28806
03:30PM 18/06/06
20/10/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
James T Highley,PO Box 240908 Charlotte NC 282240908//704-525-7990/7045258174
Yes
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Flow Measurement Operations & Maintenance 0 Records/Reports Self -Monitoring Program
Facility Site Review Effluent/Receiving Waters
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
Linda S Wiggs Ds ARO WQ//828-296-4500 Ext.4653/
�Docusigned by: Agency/Office/Phone and Fax Numbers Date
Signature of Management Q A ReviewerE
�� 6/18/2018
7E617A38285848C...
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

DocuSign Envelope ID: 5AAC1142-4ECB-4AAC-A4DD-D34608375AB8
NPDES yr/mo/day Inspection Type (Cont.)
NCO036684 111 121 18/06/06 1 17 18 JCJ
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
The inspector, Linda Wiggs, met onsite with the ORC, Mike Abel. Mike is the new ORC, he has been
operating the plant since March 2018. The facility appeared to be well operated.
Caroline Water Service staff will be visiting the site soon to evaluate maintenance needs. There were
some areas of metal corrosion, concrete decay and cinder block cracks that should be evaluated, the
weir also appeared to have some leaks.
Timed sampling was programmed at the time of the inspection. Flow proportional is required. The
inspector and Tim Heim (Asheville Regional Office Engineer) revisited the facility on 6-13-2018 to
assist with setting the sampler up for flow proportional sampling.
Page#

DocuSign Envelope ID: 5AAC1142-4ECB-4AAC-A4DD-D34608375AB8
Permit: NCO036684 Owner - Facility: Bent Creek WWTP
Inspection Date: 06/06/2018 Inspection Type: Compliance Evaluation
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: DO, sludge fudge, settleability, % centrifuge, TRC.
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?
0
❑
❑
❑
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 CDCs
❑
Are DMRs complete: do they include all permit parameters?
0
❑
❑
❑
Has the facility submitted its annual compliance report to users and DWQ?
❑
❑
0
❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
❑
❑
❑
on each shift?
Is the ORC visitation log available and current?
Yes No NA NE
❑
❑
❑
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:
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?
0
❑
❑
❑
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DocuSign Envelope ID: 5AAC1142-4ECB-4AAC-A4DD-D34608375AB8
Permit: NCO036684 Owner - Facility: Bent Creek WWTP
Inspection Date: 06/06/2018 Inspection Type: Compliance Evaluation
Flow Measurement - Effluent Yes No NA NE
Comment: Last calibration Feb 2018.
Bar Screens
Yes No NA NE
Type of bar screen
Ext. Air
❑
❑
Type of aeration system
a.Manual
❑
❑
Is the basin free of dead spots?
0 ❑
b.Mechanical
❑
Are surface aerators and mixers operational?
❑ ❑
0
Are the bars adequately screening debris?
0
❑
❑
❑
Is the screen free of excessive debris?
0
❑
❑
❑
Is disposal of screening in compliance?
0
❑
❑
❑
Is the unit in good condition?
0
❑
❑
❑
Comment:
Aeration Basins
Yes No NA NE
Mode of operation
Ext. Air
❑
❑
Type of aeration system
Diffused
❑
❑
Is the basin free of dead spots?
0 ❑
❑
❑
Are surface aerators and mixers operational?
❑ ❑
0
❑
Are the diffusers operational?
0 ❑
❑
❑
Is the foam the proper color for the treatment process?
0 ❑
❑
❑
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 mg/1)
❑ 0
❑
❑
Comment: ORC D.O.'s on June 1st were AB#1 0.78. AB#2 0.88 and on June 5th A13#1 0.85. AB#2
0.92. Work was done recently to fix leaks in diffusers. ORC Settleability results were AB#1
500ml, AB#2 450 ml, clear supernatant.
Air is currently operating at 45 min. ON, 30 min. OFF during the day and 30 min. ON, 30
min. OFF at night.
The inspector took a MLSS sample; the result was 3350 mg/l.
Secondary Clarifier
Yes No NA NE
Is the clarifier free of black and odorous wastewater?
0
❑
❑
❑
Is the site free of excessive buildup of solids in center well of circular clarifier?
❑
❑
0
❑
Are weirs level?
0
❑
❑
❑
Is the site free of weir blockage?
0
❑
❑
❑
Is the site free of evidence of short-circuiting?
0
❑
❑
❑
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DocuSign Envelope ID: 5AAC1142-4ECB-4AAC-A4DD-D34608375AB8
Permit: NCO036684 Owner - Facility:
Inspection Date: 06/06/2018 Inspection Type:
Bent Creek WWTP
Compliance Evaluation
Are tablet chlorinators operational?
0
❑
Secondary Clarifier
Yes No NA NE
Is scum removal adequate?
0
❑
❑
❑
Is the site free of excessive floating sludge?
0
❑
❑
❑
Is the drive unit operational?
❑
❑
0
❑
Is the return rate acceptable (low turbulence)?
0
❑
❑
❑
Is the overflow clear of excessive solids/pin floc?
0
❑
❑
❑
Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth)
❑
0
❑
❑
Comment: Blankets were sliahtly elevated. #1 was 5' blanket 10' depth and #2 was 4.5' blanket 10'
depth; supernatant was clear on both. Settleability test matched. It is unknown if the
clarifiers are hopper style bottoms or not, ORC would like to drain down to confirm. Solids
were removed from digester on 4/18/2018 (Mikes Septic) and will be removed again next
week. ORC log documents good wasting. Site revisited 6-13-2018, digester had been
pumped.
Disinfection -Tablet
Yes No NA NE
Are tablet chlorinators operational?
0
❑
❑
❑
Are the tablets the proper size and type?
0
❑
❑
❑
Number of tubes in use?
2
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?
0
❑
❑
❑
Comment: ORC process control/loq sheet indicated TRC levels were acceptable.
De -chlorination Yes No NA NE
Type of system ? Tablet
Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ 0 ❑
Is storage appropriate for cylinders? ❑ ❑ 0 ❑
# 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? 0 ❑ ❑ ❑
Number of tubes in use? 6
Comment:
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? 0 ❑ ❑ ❑
Page# 5

DocuSign Envelope ID: 5AAC1142-4ECB-4AAC-A4DD-D34608375AB8
Permit: NCO036684 Owner - Facility: Bent Creek WWTP
get the sampler set up
as
Inspection Date: 06/06/2018 Inspection Type: Compliance Evaluation
6-13-2018. Sampling is now flow proportional.
Effluent Sampling
Yes No NA NE
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
0
❑
❑
❑
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
❑
0
❑
❑
representative)?
Comment: Sampler is set uo as Timed. 1 aliauot (200 ml) each hour for 24 hours. We discussed the
required flow proportional sampling requirements. The ORC will
get the sampler set up
as
required (flow proportional) and get back with the inspector. ARO staff revisited the site on
6-13-2018. Sampling is now flow proportional.
Effluent Pipe
Yes No NA NE
Is right of way to the outfall properly maintained?
0
❑
❑
❑
Are the receiving water free of foam other than trace amounts and other debris?
0
❑
❑
❑
If effluent (diffuser pipes are required) are they operating properly?
❑
❑
0
❑
Comment:
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, and 0 ❑ ❑ ❑
sampling location)?
Comment:
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