NC0046809_20180402_Compliance Evaluation Inspection

•
4 ROY
COOPER
Governor
MICHAEL S.REGAN
Water Resources Secretary
Environmental Quality T TKTTI A (`T TT PPPPPI?
April 4,2018
Mr.Darrell Gaines
Cornerstone Conference Ministry and Retreat Center RECEIVE®/DENR/DWR
P.O.Box 150
Browns Summit,NC 27214-0150 APR 11 2018
SUBJECT: Compliance Evaluation Inspection Water Resources
Cornerstone Conference Ministry and Retreat Center WWTP Permitting Section
NPDES Permit No.NC0046809
Guilford County
Dear Mr. Gaines:
On March 27, 2018, Jenny Graznak of this office met with Mark Nault (ORC) and Kris Pawlak (Lab
Manager) of Meritech, Inc. to perform a Compliance Evaluation Inspection on the wastewater treatment
system serving the Cornerstone Conference Ministry and Retreat Center. The inspection findings are
detailed below and an inspection checklist is attached.
1.Permit
The permit became effective July 1,2016 and shall expire April 30,2021.A copy of the current permit was
available for review during the inspection.
2. Self-Monitoring Program
The Discharge Monitoring Reports (DMRs) were reviewed for the period January 2017 through January
2018. There were three violations of permit limits during that time frame: one Fecal Coliform violation in
March 2017 and two Aquatic toxicity violations in February and March 2017.All violations resulted in the
issuance of Notices of Violation and were addressed in separate correspondence from this office.Regarding
monitoring requirements, it was noted that sampling was performed per the frequencies specified in the
permit.
3.Records/Reports
A comparison of the March 2017 DMR with the corresponding laboratory records,data sheets,and operator
records show that values were transcribed correctly onto the monitoring report. Records appear to be kept
and maintained as required by the permit except for the lack of sludge removal records. Mr.Nault stated
that Meritech does have those records, but they were not available during the inspection. Please make
certain to have those records available at the next inspection.
4.Flow Measurement
The permit requires weekly instantaneous flow reporting of the influent or effluent. The facility currently
does not have a device to measure or estimate flow.Therefore,the operator performs a weekly bucket test.
If the Retreat Center had a meter attached to the incoming water from the well, it could be used to estimate
flow to the wastewater treatment system. However, it was determined during the inspection that no such
meter exists on the premises.
`-"T�dotlairra Compares
State of North Carolina I Environmental Quality
450 W Hanes Mill Road,Suite 300,Winston-Salem,North Carolina 27105
Phone [phone] FAX.[phone]

5.Facility Site Review
The existing 0.02 MGD treatment system consists of the following: splitter box(not used), dual in-ground
0.01 MGD package plants(only one unit is used due to low influent flow)with bar screens,aeration basins,
clarifiers, and non-aerated sludge digester, tablet chlorinator with contact chamber, and a tablet
dechlorination unit. A tertiary filter unit exists but is currently not used.
6; Operations and Maintenance
The plant shows signs of age,wear and tear,and lack of structural repairs over the years.The wall between
the aeration basin and digester does not appear to be secure.If there is any leaking between the units,solids
cannot be concentrated in the digester nor liquid decanted. The wall should be checked to make sure it is
secure and will allow for proper operation of the plant.
7. Sludge Handling and Disposal
Very little solids are removed from this plant due to the low influent flow. Jenkins Waste Management
removes solids when needed,but there were no records of this service available during the inspection.
8.Effluent/Receiving Waters
The system discharges into an unnamed tributary to Benaja Creek,classified as WS-V NSW waters, in the
Cape Fear River Basin. The outfall was buried in the stream bank and could not be located. The effluent
after treatment appeared clear with no visible solids.
Should you have any questions concerning this report,please contact Jenny Graznak or me at (336) 776-
9800.
Sincerely,
/Jvug.4,i-- V /2,,,,,e,}
Sherri V.Knight,P.E. •
Regional Supervisor
Water Quality Regional Operations
Division of Water Resources
cc: NPDES Unit
Central Files
WSRO
Meritech,Inc.

United States Environmental Protection Agency Form Approved
E PA 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 LI 2 LI 3 I NC0046809 111 12 18/03/27 117 18 L1c. 19 12_1 201 I
211 11111 1111111 11 11 1 11 1111 1 1 11111 111111111 I I r
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA Reserved
67 1 70 Li 71 LI 72 1 I I 731 I 174 7511 1 1 1 1 1 1 180
Section B Facility Data LJ
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) 12 0OPM 18/03/27 16/07/01
Cornerstone Conference and Resource Center WWTP
7545 US Hwy 29 N Exit Time/Date Permit Expiration Date
01 30PM 18/03/27 21/04/30
Browns Summit NC 27214
Name(s)of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data
///
Marc W Nault/ORC/336-342-4748/
Name,Address of Responsible OfficiaVTitle/Phone and Fax Number
Contacted
Darrell Gaines,PO Box 150 Browns Summit NC
272140150//336-656-7936/3366567554 No
Section C Areas Evaluated During Inspection(Check only those areas evaluated)
III Permit • Flow Measurement II Operations&Maintenance • Records/Reports
Self-Monitoring Program •Sludge Handling Disposal II Facility Site Review II 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
Jennifer F GrazznnakfWSRO WQ//336-771-5000/ LI( ( 17-of
cysuA4,KA.0...r.
Signature of Management Q A ReviewerAgency/Office/Phone and Fax Numbers Date
i.1.‘)1(it 4J,/err
EPA Form 3560-3(Rev 9-94)Previous editions are obsolete
Page# 1

NPDES yr/mo/day Inspection Type (COrlt) 1
31 NC0046809 I11 121 18/03/27 17 18 Li
l
Section D Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary) •
1. Permit
The permit became effective July 1,2016 and shall expire April 30, 2021.A copy of the current permit
was available for review during the inspection.
2. Self-Monitoring Program
The Discharge Monitoring Reports (DMRs)were reviewed for the period January 2017 through January
2018.There were three violations of permit limits during that time frame one Fecal Coliform violation in
March 2017 and two Aquatic toxicity violations in February and March 2017.All violations resulted in the
issuance of Notices of Violation and were addressed in separate correspondence from this office
Regarding monitoring requirements, it was noted that sampling was performed per the frequencies
specified in the permit.
3. Records/Reports
A comparison of the March 2017 DMR with the corresponding laboratory records, data sheets, and
operator records show that values were transcribed correctly onto the monitoring report. Records
appear to be kept and maintained as required by the permit except for the lack of sludge removal
records. Mr. Nault stated that Meritech does have those records, but they were not available during the
inspection. Please make certain to have those records available at the next inspection.
4 Flow Measurement
The permit requires weekly instantaneous flow reporting of the influent or effluent.The facility currently
does not have a device to measure or estimate low Therefore,the operator performs a weekly bucket
test. If the Retreat Center had a meter attached to the incoming water from the well, it could be used to
estimate flow to the wastewater treatment system. However, it was determined during the inspection
that no such meter exists on the premises.
5. Facility Site Review
The existing 0.02 MGD treatment system consists of the following splitter box(not used), dual
in-ground 0.01 MGD package plants(only one mit is used due to low influent flow)with bar screens,
aeration basins, clarifiers, and non-aerated sludge digester,tablet chlorinator with contact chamber,
and a tablet dechlorination unit. A tertiary filter unit exists but is currently not used.
6 Operations and Maintenance
The plant shows signs of age,wear and tear, and lack of structural repairs over the years.The wall
between the aeration basin and digester does not appear to be secure. If there is any leaking between
the units, solids cannot be concentrated in the cigester nor liquid decanted The wall should be
checked to make sure it is secure and will allow for proper operation of the plant
7. Sludge Handling and Disposal
Very little solids are removed from this plant due to the low influent flow Jenkins Waste Management
removes solids when needed, but there were no records of this service available during the inspection
8 Effluent/Receiving Waters
The system discharges into an unnamed tributary to Benaja Creek, classified as WS-V NSW waters,
in the Cape Fear River Basin. The outfall was buried in the stream bank and could not be located.The
effluent after treatment appeared clear with no visible solids.
Page# 2

Permit: NC0046809 Owner-Facility: Cornerstone Conference and Resource Centel
Inspection Date: 03/27/2018 Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping'? • 0 0 0
Does the facility analyze process control parameters,for ex MLSS, MCRT, Settleable • 0 0 0
Solids, pH, DO,Sludge Judge, and other that are applicable'?
Comment The wall between the aeration basin and digester does not appear secure The wall should
be checked to make sure it is secure and will allow for proper operation of the plant.
Permit Yes No NA NE
(If the present permit expires in 6 months or less) Has the permittee submitted a new 0 0 U 0
application'?
Is the facility as described in the permit'? • 0 0 0
#Are there any special conditions for the permit? 0 • 0 0
Is access to the plant site restricted to the general public'? 0 0 0 0
Is the inspector granted access to all areas for inspection'? U 0 0 0
Comment The permit became effective July 1,2016 and shall expire April 30, 2021.A copy of the
current permit was available for review during the inspection.
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit'? • 0 0 0
Is all required information readily available,complete and current'? 0 • 0 0
Are all records maintained for 3 years(lab reg. required 5 years)? • 0 0 0
Are analytical results consistent with data reported on DMRs? El 0 0 0
Is the chain-of-custody complete'? U 0 0 0
Dates,times and location of sampling MI
Name of individual performing the sampling II
Results of analysis and calibration U
Dates of analysis II
Name of person performing analyses U
Transported COCs U
Are DMRs complete do they include all permit parameters'? U 0 0 0
Has the facility submitted its annual compliance report to users and DWQ? 0 0 U 0
(If the facility is=or>5 MGD permitted flow)Do they operate 24/7 with a certified operator 0 0 • 0
on each shift?
Is the ORC visitation log available and current'? U 0 0 0
Is the ORC certified at grade equal to or higher than the facility classification'? U 0 0 0
Is the backup operator certified at one grade less or greater than the facility classification'? U 0 0 0
Page# 3

Permit NC0046809 Owner-Facility: Cornerstone Conference and Resource Centel
Inspection Date: 03/27/2018 Inspection Type. Compliance Evaluation
Record Keeping Yes No NA NE
Is a copy of the current NPDES permit available on site? • 0 0 0
Facility has copy of previous year's Annual Report on file for review? 0 0 • 0
Comment Records appear to be kept and maintained as required by the permit except for the lack of
sludge removal records
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? 0 0 0 •
Are the receiving water free of foam other than trace amounts and other debris? 0 0 0 •
If effluent (diffuser pipes are required) are they operating properly? 0 0 • ❑
Comment. Effluent samples are collected after the dechorination unit The operator stated that the
effluent pipe is buried and could not be located during the inspection.
Flow Measurement-Effluent Yes No NA NE
#Is flow meter used for reporting? 0 0 • 0
Is flow meter calibrated annually? 0 0 • 0
Is the flow meter operational? 0 0 • 0
(If units are separated)Does the chart recorder match the flow meter? 0 0 • ❑
Comment The facility currently does not have a device to measure or estimate flow.Therefore,the
operator performs a weekly bucket test
Aerobic Digester Yes No NA NE
Is the capacity adequate? • ❑ 0 0
Is the mixing adequate? 0 0 0 •
Is the site free of excessive foaming in the tank'? • 0 0 0
#Is the odor acceptable? • 0 0 0
#Is tankage available for properly waste sludge'? • 0 0 0
Comment
Bar Screens Yes No NA NE
Type of bar screen
a Manual •
b.Mechanical 0
Are the bars adequately screening debris'? • 0 0 0
Is the screen free of excessive debris'? • 0 0 0
Is disposal of screening in compliance? • 0 0 0
Page# 4

Permit: NC0046809 Owner-Facility: Cornerstone Conference and Resource Centel
Inspection Date 03/27/2018 Inspection Type. Compliance Evaluation
Bar Screens Yes No NA NE
Is the unit in good condition'? • 0 0 0
Comment: Bar screenings are placed in the dumpster on site.
Secondary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater'? • 0 0 0
Is the site free of excessive buildup of solids in center well of circular clarifier'? 0 0 • 0
Are weirs level? • 0 0 0
Is the site free of weir blockage'? • 0 0 0
Is the site free of evidence of short-circuiting? • 0 0 0
Is scum removal adequate'? • 0 0 0
Is the site free of excessive floating sludge'? • 0 0 0
Is the drive unit operational'? 0 0 I 0
Is the return rate acceptable(low turbulence)? • 0 0 0
Is the overflow clear of excessive solids/pin floc'? • 0 0 0
Is the sludge blanket level acceptable'?(Approximately 1/4 of the sidewall depth) 0 0 0 •
Comment. Rectangular clarifier with single weir trough
Aeration Basins Yes No NA NE
Mode of operation Ext Air
Type of aeration system Diffused
Is the basin free of dead spots'? • 0 0 0
Are surface aerators and mixers operational'? 0 0 I 0
Are the diffusers operational'? • 0 0 0
Is the foam the proper color for the treatment process'? • 0 0 0
Does the foam cover less than 25%of the basin's surface'? • 0 0 0
Is the DO level acceptable? 0 0 0 III
Is the DO level acceptable?(1 0 to 3 0 mg/I) 0 0 0 •
Comment Single aeration basin. Operator stated that one blower often trips out and needs to be
repaired by an electrician.
De-chlorination Yes No NA NE
Type of system? Tablet
Is the feed ratio proportional to chlorine amount(1 to 1)'? 0 0 I 0
Page# 5

Permit: NC0046809 Owner-Facility. Cornerstone Conference and Resource Center
Inspection Date: 03/27/2018 Inspection Type: Compliance Evaluation
De-chlorination Yes No NA NE
Is storage appropriate for cylinders? 0 0 • 0
#Is de-chlorination substance stored away from chlorine containers? 0 0 • 0
Comment.
Are the tablets the proper size and type? • 0 0 0
Are tablet de-chlorinators operational? • 0 0 0
Number of tubes in use? 2
Comment Single dechlorination unit located in the ground after the tertiary filter structure.
Disinfection-Tablet Yes No NA NE
Are tablet chlorinators operational? • 0 0 0
Are the tablets the proper size and type? • 0 0 0
Number of tubes in use? 2
Is the level of chlorine residual acceptable? 0 0 0 IN
Is the contact chamber free of growth,or sludge buildup? • 0 0 0
Is there chlorine residual prior to de-chlorination? • 0 0 0
Comment
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional'? 0 0 • 0
Is sample collected below all treatment units? • 0 0 0
Is proper volume collected'? 0 0 • 0
Is the tubing clean? 0 0 • 0
#Is proper temperature set for sample storage(kept at less than or equal to 6 0 degrees 0 0 • 0
Celsius)?
Is the facility sampling performed as required by the permit(frequency,sampling type • • 0 0 0
representative)?
Comment All samples are grab.
Upstream/Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit(frequency,sampling type,and • 0 0 0
sampling location)?
Comment
Page# 6

t
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PERMIT NC0046809 FACILITY: Western NC Conference Center-Cornerstone COUNTY:Guilford REGION. Winston-Salem
•
Conference and Resource Center WWTP
Limit Violation
MONITORING OUTFALU VIOLATION UNIT OF CALCULATED
REPORT PPI LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
03_2017 001 Effluent Coliform,Fecal MF,MFC 03/24/17 Weekly #/100m1 400 600 50 Daily Maximum Proceed to NOV
Broth,44 5 C Exceeded
Other Violation
MONITORING OUTFALU VIOLATION UNIT OF CALCULATED
REPORT PPI LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
02_2017 02/06/17 Aquatic toxicity permit Proceed to NOV
limit violation
02_2017 03/21/17 Aquatic toxicity permit Proceed to NOV
limit violation
03_2017 03/21/17 Aquatic toxicity permit Proceed to NOV
limit violation