HomeMy WebLinkAboutNC0023906_Historical information wilson 2015_20151231North Carolina Department of Environmental Qualit
September 29, 2015
Dear Mr. Pridgen:
Pat McCrory
Governor
North Carolina Division of Water Resources 1628 Mail Service Center
Location: 3800 Barrett Drive
Donald R. van der Vaart
Secretary
Customer Service
1-877-623-6748
Mr. Jimmy Pridgen
Water Reclamation Manager
City of Wilson
P.O. Box 10
Wilson, NC 27894-0010
On September 2, 2015, Cheng Zhang of the Raleigh Regional Office conducted a Pretreatment
Compliance Inspection of City of Wilson’s pretreatment program. The assistance given by Ms.
Laura Pruitt, the water reclamation compliance coordinator, was greatly appreciated. The
inspection report is attached. Findings during the inspection were as follows:
1. There are 14 Significant Industrial Users (SIUs) discharging, 7 of which are also Categorical
Industrial Users (CIUs). It was noted that no SIUs were in Significant Non-Compliance
(SNC) during the last two semi-annual period.
3. A review of the files containing the pretreatment program elements was conducted. All files
were available and well organized. Long Term Monitoring Plan were updated recently and
is under review by the Division.
2. The pretreatment inspection file review included Voith Fabrics (Permit No. 8414), Purdue
Pharmaceuticas (Permit No. 2000-001) and Bridgestone (Permit No. 8412). The files
needed for review were available for inspection, contained all the required elements and
were in excellent condition. These three SIUs were in compliance during the most recent 6-
month period.
4. Long Term Monitoring Plan (LTMP) data for were reviewed, it was noted that all
parameters were sampled at required locations and analyzed with required detection levels.
LTMP data was well organized and maintained.
Subject: Pretreatment Compliance Inspection
City of Wilson - Hominy Creek Wastewater Management Facility
NPDES Permit No. NC0023906
Wilson County
Raleigh, NC 27699-1628 Phone (919) 791-4200
Internet: www.ncwaterquality.org Location: 3800 Barrett Drive Raleigh, NC 27609 Fax (919)788-7159
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper
or
Sincenely,
Enclosure: 2015 City of Wilson PCI Inspection Form
Thank you for your continued support of the Pretreatment Program. If you have any questions
comments, please call Cheng Zhang at (919) 791-4200 (or email: cheng.zhang@ncdenr.gov).
CC: Sarah Morrison, DWR - PERCS Unit
Central Files
Cheng Zhang, RRO
Laura Pruitt, City of Wilson
Danny Smith
Surface Water Protection Supervisor
Raleigh Regional Office
BACKGROUND INFORMATION [Complete Prior To PCI; Review Program Info Database Sheet(s)|
City of Wilson1.
Laura Pruitt2.
3.
4.
5.
6.
Order Type, Number, Parameters:
MM/DD/YY
|NJ
PSNC
YES KI NO18.
19.
20.on an None
yes KIno21.
NC DWQ Pretreatment Compliance Inspection (PCI) Form Updated 7/25/07 Page I
22.
23.
24.
25.
26.
27.
Control Authority (POTW) Name: _
Control Authority Representative(s):
Title(s): Water Reclamation Compliance Coordinator
Last Inspection Date 5/9/2013 Inspection Type (Check One): PCI Audit
Has Program Completed All Requirements from the Previous Inspection and Program Info Sheet(s)? YES NO
Is POTW under an Order That Includes Pretreatment Conditions? YES K NO
Are Milestone Dates Being Met? YES NO
Since the Last PCI, has the POTW had any NPDES Limits Violations?
If Yes, What are the Parameters and How are these Problems Being Addressed?
YES NO 1/2015 BOD,
TSS; 3/2015 flow
Since the Last PCI, has the POTW had any Problems Related to an Industrial
Discharge (Interference, Pass-Through, Blockage, Citizens’ Complaints, Increased
Sludge Production, Etc.)?
If Yes, How are these Problems Being Addressed?
Which Industries have been in SNC for Limits or Reporting during
either of the Last 2 Semi-Annual Periods? Not Been Published for
Public Notice?(May refer to PAR if Excessive SIUs in SNC)
Which Industries are on Compliance Schedules or Orders? For all SIUs
Order, Has a Signed Copy of the Order been sent to the Division?
Are Any Permits Or Civil Penalties Currently Under Adjudication? If Yes, Which
Ones?
| 09 i02 I 15 I
(DTIA)
Main Program Permit Number
| N | C | 0 | 0 | 21 3 | 9 | 0.|6..|
NO^H CAROLINA DIVISION OF WA^< QUALITY
PRETREATMENT COMPLIANCE INSPECTION (PCI) REPORT
Inspec.Type
(TYPI)
7. Current Number Of Significant Industrial Users (SIUs)?________________________________
8. Current Number Of Categorical Industrial Users (CIUs)?_______________________________
9. Number of SIUs Not Inspected By POTW in the Last Calendar Year?_____________________
10. Number of SIUs Not Sampled By POTW in the Last Calendar Year?______________________
11. Enter the Higher Number of 9 or 10________________________________________________
12. Number of SIUs With No IUP, or With an Expired IUP________________________________
13. Number of SIUs in SNC for Either Reporting or Limits Violations During Either of the Last 2
Semi-Annual Periods (Total Number of SIUs in SNC)_________________________________
14. Number of SIUs in SNC For Reporting During Either of the Last 2 Semi-Annual Periods______
15. Number of SIUs In SNC For Limits Violations During Either of the Last 2 Semi-Annual Periods
16. Number of SIUs In SNC For Both Reporting and Limits Violations During Either of the Last 2
Semi-annual Periods
0_
£
NOIN
NOCM
Fac. Type
L_U
(FACC)
SIUS
CIUS
MSNC
SNPS
Inspector
L_sj
(INSP)
14
7
0
0
0
0
~0
SNC for Limits: None
SNC for Reporting: None
Not Published: None
LTMP/STMP FILE REVIEW:
Is LTMP/STMP Monitoring Being Conducted at Appropriate Locations and Frequencies? YES NO
Are Correct Detection Levels being used for all LTMP/STMP Monitoring? YES NO
Is LTMP/STMP Data Maintained in a Table or Equivalent? YES NO Is Table Adequate? YES NO
All LTMP/STMP effluent data reported on Discharge Monitoring Report? YES NO DWQ Inspector, please verify yourself!
If NO to 23 - 26, list violations___________________________________
Should any Pollutants of Concern be Eliminated from or Added to LTMP/STMP? YES NO
If yes, which ones? Eliminated:Added:
POTW INTERVIEW
17.
PCS CODING
Trans.Code
1. Voith Fabrics 2. Purdue Pharmaceutical
ElYesONoDN/A □YesQNoDN/A SYesEJNoDN/A
□YesQNoEIN/A □YesQNoEIN/A □YesONoBN/A
□YesCNoSN/A □YesCNo0N/A □YesEJNo^N/A
□YesONo^N/A □YesDNoE|N/A □YesEJNoEIN/A
□YesONo^N/A □YesQNoSN/A □YesEJNoEN/A
a.nYesDNoSN/A a.nYesDNol3N/A a.QYesnNoSN/A
b.nYesDNoSN/A b.nYesQNoEN/A b-DYesdNoHN/A
NC DWQ Pretreatment Compliance Inspection (PCI) Form Updated 7/25/07 Page 2
28. PRETREATMENT PROGRAM ELEME
their files, complete with supporting documents
Program Element
Headworks Analysis (HWA)
Industrial Waste Survey (IWS)
Sewer Use Ordinance (SUO)
Enforcement Response Plan (ERP)
Long Term Monitoring Plan (LTMP)
Yes [71 No
£3 Yes No
[g] Yes No
Eg] Yes No
KI Yes No
a. DYesnNoSN/A
b. aYesqNoaN/A
Yes KI No
□YesDNo^N/A
□YesONoSN/A
6/24/2013
5/5/2014
3/12/2012
7/19/2012
1/7/2014
a. SYes QNo
bDYesDNoElN/A
K Yes No
□YesDNoEIN/A
□YesQNo0N/A
No
No
No
No
No
a.nYesnNoSN/A
b-DYesDNoEN/A
Yes KI No
K Yes No
a. ElYes ^No
b. QYes ENo
□YesONo^N/A
a. ElYes EJNo
b. gYesqNoBN/A
KI Yes No
□YesDNoEN/A
□YesDNoEN/A
c.DYesDNoSN/A
Yes KI No~
□YesONoEN/A
K Yes No
a. SYes EJNo
b. DYes DNo
□YesDNoEIN/A
KI Yes No
SYesDNoDN/A
KI Yes No
a. ^Yes ONo
b. DYes DNo
□YesQNoElN/A
KI Yes No
EYesCNoDN/A
INDUSTRIAL USER PERMIT (IUP) FILE REVIEW (3 IUP FILE REVIEWS OR 1 FILE REVIEW AND 1 IU INSPECTION)
29. User Name
a. SYes ONo
b. qYesDNoElN/A
KI Yes No
a. qYesqNoiaN/A
b. qYesqNoBN/A
Yes KI No
c.qYesqNol3N/A
Yes KI N?
□YesONoEIN/A
K Yes No
□YesDNoDN/A
Date Next Due,
If Applicable
4/1/2018
6/1/2019
8414
KI Yes No
6/30/2018
N/A
KI Yes No
3. Bridgestone
2000-001
KI Yes No
12/31/2015~
439.D
K Yes No
c.qYesqNoBN/A
Yes KI No~
□YesCNoEIN/A
8412
KI Yes No
12/31/2019
428.A ~
KI Yes No
JS|MREVIEW - Please review POTW files, verb
aUFopy of PERCS Approval Letter, and dates co1
Last Submittal
Date In file?
4/2/2013
4/24/2014
2/28/2012
5/16/2012
7/27/2015
if^fcjTW has copy of Program Element in
:oMffent with Program In6:________
Last Approval
Date In file
KI Yes
KI Yes
K YesE
KI Yes
KI Yes
30. IUP Number_____________________________________________________
31. Does File Contain Current Permit?__________________________________
32. Permit Expiration Date____________________________________________
33. Categorical Standard Applied (LE. 40 CFR, Etc.) Or N/A______________
34. Does File Contain Permit Application Completed Within One Year Prior
to Permit Issue Date?_____________________________________________
35. Does File Contain an Inspection Completed Within Last Calendar Year?
36. a. Does the File Contain a Slug/Spill Control Plan?
b. If No, is One Needed? (See Inspection Form from POTW)__________
37. For 40 CFR 413 and 433 TTO Certification, Does File Contain a Toxic
Organic Management Plan (TOMP)?________________________________
38. a. Does File Contain Original Permit Review Letter from the Division?
b. All Issues Resolved?____________________________________________
39. During the Most Recent Semi-Annual Period, Did the POTW Complete
its Sampling as Required by IUP, including flow?_____________________
40. Does File Contain POTW Sampling Chain-Of-Custody Forms?
41. During the Most Recent Semi-Annual Period, Did the SIU Complete its
Sampling as Required by IUP, including flow?_______________________
41b. During the Most Recent Semi-Annual Period, Did SIU submit all reports
on time?___________________________________________
42a. For categorical IUs with Combined Wastestream Formula (CWF), does
file include process/dilution flows as Required by IUP?
42b. For categorical IUs with Production based limits, does file include
_______production rates and/or flows as Required by IUP?________________
43a. During the Most Recent Semi-Annual Period, Did the POTW Identify
All Limits Non-Compliance from Both POTW and SIU Sampling?_____
43b. During the Most Recent Semi-Annual Period, Did the POTW Identify
All ReportingNon-Compliance from SIU Sampling?__________________
44. a. Was the POTW Notified by SIU (Within 24 Hours) of All Self
Monitoring Violations?
b. Did Industry Resample and submit results to POTW Within 30 Days?.
c. If applicable, Did POTW resample within 30 days of becoming aware
of SIU limit violations in the POTW’s sampling of the SIU?____________
46. During the Most Recent Semi-Annual Period, Was the SIU in SNC?
47. During the Most Recent Semi-Annual Period, Was Enforcement Taken
as Specified in the POTW's ERP (NOVs, Penalties, timing, etc.)?_______
48. Does the File Contain Penalty Assessment Notices?
49. Does The File Contain Proof Of Penalty Collection?__________________
50. a. Does the File Contain Any Current Enforcement Orders?
b. Is SIU in Compliance with Order?________________________________
51. Did the POTW Representative Have Difficulty in Obtaining Any of This
Requested Information For You?
FILE REVIEW COMMENTS:
INDUSTRY INSPECTION PCS CODING:
Trans.Code MM/DD/YY
USLl
Title:
OVERALL SUMMARY AND COMMENTS:
Comments:
Requirements:
Recommendations:
X
NC DWQ Pretreatment Compliance Inspection (PCI) Form Updated 7/25/07 Page 3
YES NO
yes Dno
Unsatisfactory.
September 2. 2015
I 09 102 I 15 1
(DTIA)
NOD: YES NO
NOV: YES NO
qncr: Dyes □no
POTW Rating:
!_U
(FACC)
Main Program Permit Number
I N|C|0|0|2|3|9|0|6|
Inspec.Type
L_PJ
(TYPI)
Inspector Fac. Type
!_sj
(INSP)
yes Ono
yes NO
1. Industry Inspected:
2. Industry Address:
3. Type of Industry/Product:
4. Industry Contact:
Phone:Fax:
5. Does the POTW Use the Division Model Inspection Form or Equivalent? YES NO
6. Did the POTW Contact Conduct the Following Parts of the Industrial Inspection Thoroughly?
Comments:
A. Initial Interview
B. Plant Tour
C. Pretreatment Tour YES NO
D. Sampling Review
E. Exit Interview
Industrial Inspection Comments:
Satisfactory X Marginal
PCI COMPLETED BY: Cheng Zhang DATE:
*
NCDENR
May 27, 2015
Dear Mr. Pearce:
Pat McCrory
Governor
Test Type
Test Concentration
Test Result
If you have any questions regarding the attached report or any of the findings, please contact Cheng
Zhang at: (919) 791-4200 (or email: cheng.zhang@ncdenr.gov).
Attachments: Compliance Inspection Report
Cc: Central Files w/attachment
Raleigh Regional Office w/attachment
Donald R. van der Vaart
Secretary
Subject: Bioassay Compliance Evaluation Inspection
Whole Effluent Toxicity Test
City of Wilson WWTP
NPDES Permit No: NC0023906
Wilson County
Mr. Jimmy Pridgen
Water Reclamation Manager
City of Wilson
P.O.Box 10
Wilson, NC 27894-0010
3-Brood Ceriodaphnia dubia chronic pass fail
90%
Pass (for Toxicity Inspection)
NorthCarolina------------------- Naturally
Raleigh, NC 27699-1628 Phone (919) 791-4200
Fax (919) 788-7159
Smceraly,
Danny Smith
Water Quality Regional Supervisor
Raleigh Regional Office
_______ ___
■ r ■ —■
North Carolina Department of Environment and Natural Resources
Whole Effluent samples (split samples collected using the facility’s sampler) were collected from
Wilson WWTP on May 5 and May 7, 2015 by Cheng Zhang of Division of Water Resource (DWR),
Raleigh Regional Office. These samples were for use in a chronic Ceriodaphnia dubia pass-fail toxicity
test, which was performed by the staff at DWR Aquatic Toxicity Branch. This test passed for the
toxicity inspection. Toxicity test information follows.
North Carolina Division of Water Resources 1628 Mail Service Center
Internet: www.ncwaterquality.orq Location: 3800 Barrett Drive Raleigh, NC 27609
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper
EPA
Section A: National Data System Coding (i.e., PCS)
Inspection Typeyr/mo/dayNPDES
J11NC0023906 15/05/05
2i 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 i i i i i i i i i i i i i i i i ri6
Bl Reserved-
72I 73
Section B: Facility Data
Entry Time/Date Permit Effective Date
08/12/0109:00AM 15/05/05
Wilson WWTP
Exit Time/Date
15/05/0509:45AM
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)Other Facility Data
Contacted
/es1*
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
J Other
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
Date
1Page#
J17
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES oermit Number)
Permit Expiration Date
13/05/31
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Old Stantonsburg Rd
Wilson NO 27893
///
James William Pridgen/ORC/252-399-2491/
Inspector
19
United States Environmental Protection Agency
Washington, D C. 20460
Water Compliance Inspection Report
N Lil
QA
LuJ
Inspection Work Days
671
Transaction Code
1 121
Fac Type
20U
Facility Self-Monitoring Evaluation Rating
70 u UJ74 75l I I I I I I I80
31
Name, Address of Responsible Official/Title/Phone and Fax Number
Pr!c^^
.Bussall-P Bnft.PO Box 10 Wilson NC 278940010/Plant Manager/252-399-2491/
Cheng Zhang RRO WQ//919-791-4200/
Signature of Management QXReviewer Aqpncy/Office/Phone and Fax Numbers
EPA Form 3S60-^Rev 9-94) Previous editions are obs/lete.
18^J2U
71N
NPDES yr/mo/day 1
3L NC0023906 15/05/05
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
inle
2Page#
Two 24-hour composite effluent samples (split samples) were collected on May 5, 2015, and May 7,
2015,
respectively. Ceriodaphnia dubia chronic pass/fail test was performed at Division of Water Resources'
Aquatic Toxicity Branch, the result of the test was PASS.
I11 I1712l
Inspection Type
18 [B]
May 6, 2015
Dear Mr. Goings:
Date Limit ValueParameter
1/17/2015 15.000 mg/l
1/17/2015 45.000 mg/l 191.300 mg/l
1/31/2015 10.000 mg/l 24.260 mg/l
1/31/2015 30.000 mg/l 45.910 mg/l
Remedial actions should be taken to correct this problem. It is the duty of every permitted
An Equal Opportunity \ Affirmative Action Employer - Made in part by recycled paper
BOD, 5-Day (20 Deg. C)
- Concentration
Solids, Total Suspended
- Concentration
BOD, 5-Day (20 Deg. C)
- Concentration
Solids, Total Suspended
- Concentration
Pat McCrory
Governor
The Division of Water Resources has reviewed Wilson WWTP's monitoring report for
January 2015 and we noted the following violation(s) had been reported:
Division of Water Resources, Raleigh Regional Office.
Water Quality Operations Section
1628 Mail Service Center, Raleigh, NC 27699-1628
Location: 3800 Barrett Drive, Raleigh, NC 27609
Donald R. van der Vaart
Secretary
Weekly
Average
Exceeded
Monthly
Average
Exceeded
Monthly
Average
Exceeded
Grant W Goings, City Manager
City of Wilson
PO Box 10
Wilson NC 27894-0010
Subject: NOTICE OF VIOLATION
Permit No. NC0023906
Wilson WWTP
Case No. NOV-2015-LV-0301
Wilson County
http://portal.ncdenr.org/web/wq/apps
Phone: (919) 791-4200
Fax: (919) 788-7159
Limit Type
Weekly
Average
Exceeded
CERTIFIED MAIL 7014 1200 0000 8628 7323
RETURN RECEIPT REQUESTED
Reported Value
101.070 mg/l
HCDEHR
North Carolina Department of Environment and Natural Resources
cc: Central Files
RRO SWP files
If you have any questions regarding this notice, please contact Mitch Hayes at 919-791- n Sincerely/
Danny Smitn, Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
facility to meet permit limits.
will prevent further action by^£
our lakes,' rivers and streams.
urge you to avoid future occurrer^h. By doing so, you
State regarding the problems this month while protecting
Hayes, Mitch
Mitch,
o
We only have one BPR tank (the tank has 5 cells)o
o
We do not have an effluent pump station. Our effluent flows by gravity to the receiving stream.o
o
o
o
o
o
1
I reviewed the report and everything looks great, but there were a few minor clarifications I wanted to pass along so you
could update your files for future reference. They are as follows:
The aeration basins have two anoxic zones in each of the seven aeration basins (one prior to aeration and
one after aeration). That is a total of 14 anoxic zones. We also have pumps that recycle a portion of the
flow from the second anoxic zone back to the first anoxic zone to enhance nitrogen removal.
You listed we have “(1) reuse water basin; a reclaim water facility”. 1 assume this refers to the reuse wet
well and the two reuse pumps at the same location. Please verify.
Wanted to clarify that “Microseed” is actually “MicroC 3000” (proprietary product supplied by
Environmental Operating Solutions, Inc. - it is a mostly methanol product with some other various
alcohols blended in).
You listed “all 3 GBT and BFP units are operational”. Wanted to clarify that we have two GBT units and
two BFP units. One of each would have been in service. We do have space to install a third GBT and/or
BFP in future if needed.
Wanted to clarify that water plant alum sludge in not typically applied to the drying beds at the WWTP
(but it could be if needed). Water plant sludge (ferric) from Wiggins Mill is dried at that facility on its
own drying beds. After drying is complete, it is transported to the solids storage pad here at the
WWTP. Once it is on our pad, we treat as a class B product and will compost or land apply. However,
we typically only compost this material.
From:
Sent:
To:
Subject:
Jimmy Pridgen <jpridgen@WILSONNC.ORG>
Thursday, January 29, 2015 2:40 PM
Hayes, Mitch
City of Wilson Inspection Report
I just wanted to let you know that I received your inspection report late last week. I greatly appreciate the nice report and
as always, it was great to see you and chat some. While I always enjoy chatting with you, hopefully I want have to be
calling you a lot in the future about plant issues. I seem to have had to call you more than typical lately. Thank you very
much for all your help every time I have called.
Letter - Item 3:
In the recent upgrade at the Influent Pump Station, we also added a mechanical bar screen with a
serpentine conveyor belt to transport screenings to the dumpster. We also have two manual bar screens
there. At the headw'orks we have two mechanical bar screens and one manual bar screen.
Letter - Item 4:
Only one BPR tank operational.
Inspection Report Form - Summary
o Several of the clarifications listed in Items 3 & 4 above would also apply here.
o
If you have any questions, please contact me. Thanks again for all your assistance.
2
Pursuant to North Carolina General Statutes. Chapter 132.et.seq., this electronic mail message and any
attachment hereto, as well as any electronic mail message(s) that may be sent in response to it may be
considered public record and as such are subject to requests for review.
Sincerely,
Jimmy
"It is not the strongest of the species
that survives, nor the most intelligent,
but the one most responsive to change."
— Charles Darwin
City of Wilson
Water Reclamation Facility
P.O. Box 10
3100 Stantonsburg Road
Wilson, NC 27894-0010
’Pnidcp&t,
Water Reclamation Manager
Office: 252-399-2491
Mobile: 252-205-2519
Fax: 252-399-2209
Email: ipridqen@wilsonnc.orq
Website: www. wilsonnc. orq
Inspection Report Form - Nutrient Removal
Wanted to clarify that “Microseed” is actually “MicroC 3000”. Also, it is used to remove nitrogen;
however, with the switch from methanol to MicroC 3000 we have seen a tremendous improvement of our
phosphorus removal rate as an additional benefit. Since the addition of MicroC 3000 we have thus far not
needed chemical precipitation for phosphorus removal.
Is^ydling Equipment
d BTP units are operational”. Wanted to clarify that we have two GET units and
two BFP units. One of each would have been in service.
Inspection Report Form - Solid?
o You listed “all 3 GET and
Inspection Report Form - Pump Station - Effluent
o We do not have an effluent pump station. Our effluent flows by gravity to the receiving stream.
January 8, 2015
SUBJECT:
Dear Mr. Pridgen:
1.
2.
3.
Pat McCrory
Governor
Donald R. van der Vaart
Secretary
Jimmy Pridgen, Water Reclamation Manager
City of Wilson Hominy Creek Water Reclamation Facility
P.O. Box 10
3100 Old Stantonsburg Road
Wilson, NC 27894-0010
http://portal.ncdenr.org/web/wq/aps
Phone: (919) 791-4200
Fax: (919)788-7159
An Equal Opportunity \ Affirmative Action Employer - Made in part by recycled paper
Division of Waler Resources. Raleigh Regional Office, Waler Quality Operations Section
1628 Mail Service Center. Raleigh. NC 27699-1628
Location: 3800 Barrett Drive. Raleigh. NC 27609
HCDEHR
North Carolina Department of Environment and Natural Resources
The subject permit was reissued and became effective December 01, 2009 and expired May
31, 2013. Please continue to operate under the last issued permit.
The 14.0 MGD Wastewater Treatment Facility consists of the of the following units: influent
pump station with 4 influent pumps with variable frequency drives; two (2) service entrances to
provide redundant source of electrical power to influent pump station; two (2) automatic bar
screens; manual bar screens; screenings compactor; automatic grit removal; influent ultrasonic
flow meter; two (2) flow equalization basins; two (2) biological phosphorus removal tank; three
(3) primary clarifiers; seven (7) aeration basins with seven anoxic zones and one reareation
zone; five (5) secondary clarifiers; methanol feed facilities; five (5) deep bed denitrification
filters with automatic or manual backwashing; sodium hypochlorite disinfection tank; reareation
basin with sodium bisulfite dechlorination; effluent ultrasonic flow meter; effluent pump station;
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)
The Division of Water Resources (DWR) will implement an electronic discharge monitoring
report program. This program requires all NPDES-permitted facilities report monthly monitoring
report data electronically through the Division's eDMR (Electronic Discharge Monitoring
Report) program. All existing permitted facilities and any new permitted facilities/dischargers
will be required to comply with the permit requirement no later than 90 days after the next
permit issuance becomes effective. For more information on eDMRs, registering for eDMR
submittal, and obtaining an eDMR user account, please visit DWR’s webpage:
http://portal.ncdenr.orq/web/wq/admin/boq/ipu/edmr . If you have any questions about this
process please contact Autumn Romanski at 919.791.4255.
Compliance Evaluation Inspection
City of Wilson Hominy Creek Water Reclamation Facility
NPDES Permit NC0023906
Wilson County
On December 12, 2014, Mitch Hayes of the Raleigh Regional Office conducted the subject
inspection. The assistance of Debbie Collins and yourself with the inspection was greatly appreciated.
Below is a list of findings developed from the inspection:
4.
5.
6.
7.
cc: permit files, central files
Danny Smith, Regional Supervisor
Water Quality Operations Section
Raleigh Regional Office
Hominy Creek WRF CE1
Page 2
Sincerely,
,j
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 dewatered sludge; three
(3) liquid sludge holding tanks; and a septage receiving station.
At the time of inspection the following was observed: all 4 influent pumps are operational and
used concurrently; the 2 mechanical screens, 2 grit collectors, and the 2 grit classifiers were
operational and used concurrently but only one of each were in service; two biological
phosphorus tanks were being operated; filtrate from the GBT and the BFP was being fed into
both flow equalization basins; all 3 primary clarifiers are operational and used concurrently
however, 1 and 3 were in service; all 7 Biological Nutrient Reduction (BNR) trains were being
operated, Microseed was being fed at the end of each treatment trains; 5 secondary clarifiers,
and 5 tertiary filters were in operation; all 3 GBT and BFP units are operational and used
concurrently but two were in use; Class B biosolids took up to 75% of the floor which are stored
under shelter; and all 4 anaerobic digester methane units were operating normally. Excess
methane was being ignited. All air diffusers in the aeration basins appeared to be operating
normally. The color of the influent was a medium chocolate brown with foam covering over
60% of the service. The effluent appeared clear in the reareation / dechlorination tank. The
reuse water pond was not in service.
Granville Farms operates the Land Application Program under permit WQ0001896. Class B
solids are land applied on private farms or transported to Eastern Composting in Battleboro,
NC.
The laboratory was checked in a cursory manner. All instrument calibration logs are being
maintained. The BOD incubator temperature was 19.5 degrees C, the fecal bath temperature
Was 44.5 degrees C, sample refrigerator was 2 degrees C, and the TSS oven was 105 degrees
C. An operator’s logbook was available and being maintained. The influent and effluent flow
sampler temperature was 3 degrees C. The influent and effluent flow meters are calibrated
every 90 days by Pearson Controls Services from Raleigh, NC. All pH buffers were within
expiration date.
Discharge Monitoring Reports for the period September 2012 through October 2014 were
reviewed for compliance with permit limits and monitoring requirements. There were no
violations for the review period. Commercial lab results, chain of custody records, and bench
sheets were compared with data submitted on the Discharge Monitoring Report (DMR) for the
month of August 2014. No discrepancies were noted.
I would like to thank you and Debbie Collins for your time and assistance with this inspection. If
you have any questions about this letter or the inspection please contact Mitch Hayes at
mitch.haYes@ncdenr.qov or at 919.791.4261.
EPA
Section A: National Data System Coding (i.e., PCS)
Inspection Typeyr/mo/dayNPDES
]11NC0023906 14/12/12
21 11111 111111111 11 i 11 1111 i i 11111 111111111 i i r
Bl QA -Reserved-
72 |8073
Section B: Facility Data
Entry Time/Date Permit Effective Date
10:00 AM 08/12/0114/12/12
Wilson WWTP
Exit Time/Date Permit Expiration Date
14/12/1212:30PM 13/05/31
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
Russell P Brice,PO Box 10 Wilson NC 278940010/Plant Manager/252-399-2491/
Yes
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
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
RRO WQ//919-791-4200/
0 A ^'.26/5
1Page#
| Permit
| Self-Monitoring Program
H Laboratory
Old Stantonsburg Rd
Wlson NC 27893
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
H Flow Measurement H Operations & Maintenance H Records/Reports
H Sludge Handling Disposal | Facility Site Review | Effluent/Receiving Waters
///
Barry Glenn Parks//252-399-2374 /
James Wiliam Pridgen//252-399-2491 /
James William Pridgen/ORC/252-399-2491/
Nicholas Vann Eatmon/ORC/252-296-3383/
Rodney E. Harris/ORC/252-399-2495/
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
United States Environmental Protection Agency
Washington, D.C. 20460
Water Compliance Inspection Report
Inspector
19 LU
Inspection Work Days
671
Transaction Code
1
Fac Type
20UH7
LU74 75l I I I I I I I
Facility Self-Monitoring Evaluation Rating
70 u
12 1
Mitchell S Hayes
71U
18 LeJ31
DateAgency/Office/Phone and Fax NumbersSignature of Management Q A Reviewer
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
1(Cont.)
I113I
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
2Page#
12l
NPDES
NC0023906
yr/mo/day
14/12/12
At the time of inspection the following was observed: all 4 influent pumps are operational and used
concurrently; the 2 mechanical screens, 2 grit collectors, and the 2 grit classifiers were operational and
used concurrently but only one of each were in service; two biological phosphorus tanks were being
operated; filtrate from the GBT and the BFP was being fed into both flow equalization basins; all 3
primary clarifiers are operational and used concurrently however, 1 and 3 were in service; all 7
Biological Nutrient Reduction (BNR) trains were being operated, Microseed was being fed at the end of
each treatment trains; 5 secondary clarifiers, and 5 tertiary filters were in operation; all 3 GBT and BFP
units are operational and used concurrently but two were in use; Class B biosolids took up to 75% of
the floor which are stored under shelter; and all 4 anaerobic digester methane units were operating
normally. Excess methane was being ignited. All air diffusers in the aeration basins appeared to be
operating normally. The color of the influent was a medium chocolate brown with foam covering over
60% of the service. The effluent appeared clear in the reareation / dechlorination tank. The reuse water
pond was not in service.
The laboratory was checked in a cursory manner. All instrument calibration logs are being maintained.
The BOD incubator temperature was 19.5 degrees C, the fecal bath temperature was 44.5 degrees C,
sample refrigerator was 2 degrees C, and the TSS oven was 105 degrees C. An operator’s logbook
was available and being maintained. The influent and effluent flow sampler temperature was 3 degrees
C. The influent and effluent flow meters are calibrated every 90 days by Pearson Controls Services
from Raleigh, NC. All pH buffers were within expiration date.
Granville Farms operates the Land Application Program under permit WQ0001896. Class B solids are
land applied on private farms or transported to Eastern Composting in Battleboro, NC.
Discharge Monitoring Reports for the period September 2012 through October 2014 were reviewed for
compliance with permit limits and monitoring requirements. There were no violations for the review
period. Commercial lab results, chain of custody records, and bench sheets were compared with data
submitted on the Discharge Monitoring Report (DMR) for the month of August 2014. No discrepancies
were noted.
The 14.0 MGD Wastewater Treatment Facility consists of the of the following units: influent pump
station with 4 influent pumps with variable frequency drives; two (2) service entrances to provide
redundant source of electrical power to influent pump station; two (2) automatic bar screens; manual
bar screens; screenings compactor; automatic grit removal; influent ultrasonic flow meter; two (2) flow
equalization basins; two (2) biological phosphorus removal tank; three (3) primary clarifiers; seven (7)
aeration basins with seven anoxic zones and one reareation zone; five (5) secondary clarifiers;
methanol feed facilities; five (5) deep bed denitrification filters with automatic or manual backwashing;
sodium hypochlorite disinfection tank; reareation basin with sodium bisulfite dechlorination; effluent
ultrasonic flow meter; effluent pump station; 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 dewatered
sludge; three (3) liquid sludge holding tanks; and a septage receiving station.
Inspection Type
18 |C]I17
Operations & Maintenance Yes No NA NE
Comment:
Permit Yes No NA NE
Comment:Permit is under review for permit issuance. Permit expired May 31, 2013.
Record Keeping Yes No NA NE
Dates of analysis
Is the ORC visitation log available and current?
3Page#
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to users and DWQ?
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain-of-custody complete?
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?
Name of person performing analyses
Transported COOs
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
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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?
(If the facility is = or > 5 MOD permitted flow) Do they operate 24/7 with a certified operator
on each shift?
Permit: NC0023906
Inspection Date: 12/12/2014
Owner - Facility: Wl|son WWTP
Inspection Type: Compliance Evaluation
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(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 NERecord Keeping
■ Facility has copy of previous year's Annual Report on file for review?
Comment:
Yes No NA NEEffluent Pipe
If effluent (diffuser pipes are required) are they operating properly?
ROW to effluent is kept locked.Comment:
Yes No NA NEFlow Measurement - Effluent
# 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:
Yes No NA NEAnaerobic Digester
Fixed coverType of operation:
Is the capacity adequate?
# Is gas stored on site?
Is the digester(s) free of tilting covers?
Is the gas burner operational?
Is the digester heated?
Is the temperature maintained constantly?
Is tankage available for properly waste sludge?
Comment:
Yes No NA NEDrying Beds
Is there adequate drying bed space?
Is the sludge distribution on drying beds appropriate?
Are the drying beds free of vegetation?
# Is the site free of dry sludge remaining in beds?
4Page#
L______
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
Owner - Facility:
Inspection Type:
Wilson WWTP
Compliance Evaluation
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Permit: NC0023906
Inspection Date: 12/12/2014
Commercial lab results, chain of custody records, and bench sheets were compared with
data submitted on the Discharge Monitoring Report (DMR) for the month of August 2014. No
discrepancies were noted-
all 4 anaerobic digester methane units were operating normally. Excess methane was being
ignited.
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Drying Beds Yes No NA NE
Comment:
Solids Handling Equipment Yes No NA NE
Is the equipment operational?
Chemical Feed Yes No NA NE
Is containment adequate?
Is storage adequate?
Are backup pumps available?
Is the site free of excessive leaking?
Sodium hypochlorite and sodium bisulfite are used for chlorination and dechlorinationComment:
Pump Station - Effluent Yes No NA NE
Is the pump wet well free of bypass lines or structures?
Are all pumps present?
Are all pumps operable?
Are float controls operable?
Is SCADA telemetry available and operational?
Is audible and visual alarm available and operational?
5Page#
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?
The facility has an approved sludge management plan?
Is the chemical feed equipment operational?
Is storage adequate?
Is the site free of stockpiled sludge?
Is the filtrate from sludge drying beds returned to the front of the plant?
# Is the sludge disposed of through county landfill?
# Is the sludge land applied?
(Vacuum filters) Is polymer mixing adequate?
Permit: NC0023906
Inspection Date: 12/12/2014
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Owner - Facili^^Vilson WWTP
Inspection Type: Compliance Evaluation
Comment: a[l 3 GBT and BFP units are operational and used concurrently but two were in use; Class B
biosolids took up to 75% of the floor which are stored under shelter. Granville Farms
operates the Land Application Program under permit WQ0001896. Class B solids are land
applied on private farms or transported to Eastern Composting in Battleboro, NC.
Sludge drying beds are used for pump station wet well clean outs and water plant alum
sludge.
Permit: NC0023906
Inspection Type:Inspection Date: 12/12/2014
Pump Station - Effluent Yes No NA NE
Comment:
Pump Station - Influent Yes No NA NE
■ Is the pump wet well free of bypass lines or structures?
■ Is the wet well free of excessive grease?
■ Are all pumps present?
Are all pumps operable?
Are float controls operable?
■ Is SCADA telemetry available and operational?
■ Is audible and visual alarm available and operational?
Comment:
Bar Screens Yes No NA NE
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:
Grit Removal Yes No NA NE
Type of grit removal
a.Manual
b.Mechanical
■ Is the grit free of excessive organic matter?
■ Is the grit free of excessive odor?
■ # Is disposal of grit in compliance?
2 grit classifiers were operational and used concurrently but only one was in serviceComment:
Primary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater?
6Page#
Wilson v^^
Owner - Facility:
Compliance Evaluation
Primary Clarifier Yes No NA NE
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:primary effluent flowing off the weirs had very little solids.
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?
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)
Weirs are covered preventing examination of the conditionComment:
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?
Does the foam cover less than 25% of the basin’s surface? ■
7Page#
Permit: NC0023906
Inspection Date: 12/12/2014
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Owner - Facili^^son WWTP
Inspection Type: Compliance Evaluation
Wilson WWTP
Compliance Evaluation
Yes No NA NEAeration Basins
■ Is the DO level acceptable?
■ Is the DO level acceptable?(1.0 to 3.0 mg/l)
Foam covered ~ 60% of the surface which is normal for this type of wast treatment system.Comment:
Yes No NA NENutrient Removal
■ # Is total nitrogen removal required?
■ # Is total phosphorous removal required?
BiologicalType
■ # Is chemical feed required to sustain process?
■ Is nutrient removal process operating properly?
Microseed is used and fed at the end of each treatment trains to reduce phosphorus..Comment:
Yes No NA NEFiltration (High Rate Tertiary)
Down flowType of operation:
Is the filter media present?
■ Is the filter surface free of clogging?
■ Is the filter free of growth?
■ Is the air scour operational?
■ Is the scouring acceptable?
■ Is the clear well free of excessive solids and filter media?
Comment:
De-chlorination Yes No NA NE
LiquidType 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?
Are the tablets the proper size and type?
sodium bisulfite is used for dechlorination.Comment:
Are tablet de-chlorinators operational?
Number of tubes in use?
Comment:
8Page#
Owner - Facility:
Inspection Type:
Permit: NC0023906
Inspection Date: 12/12/2014
Disinfection-Liquid Yes No NA NE
Comment:
Standby Power Yes No NA NE
Generator operates under peak load shaving.Comment:
Pumps-RAS-WAS Yes No NA NE
Are pumps in place?
Are pumps operational?
Are there adequate spare parts and supplies on site?
Comment:
Laboratory Yes No NA NE
Comment:Pace and ETS labs are used for some parameters.
9Page#
# 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?
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?
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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?
Is automatically activated standby power available?
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
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?
Permit: NC0023906
Inspection Date: 12/12/2014
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IIOwner - Facility^™150'1 WWTP
Inspection Type: Compliance Evaluation
Yes No NA NEInfluent Sampling
# Is composite sampling flow proportional?
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
Is sampling performed according to the permit?
Temperature in the sampler was 3 degrees C.Comment:
Yes No NA NEEffluent Sampling
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
Is the tubing clean?
■
Temperature in the sampler was 3 degrees C.Comment:
10Page#
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
Celsius)?
# 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)?
Owner - Facility:
Inspection Type:
Wilson WWTP
Compliance Evaluation
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Permit: NC0023906
Inspection Date: 12/12/2014
Hayes, Mitch
Mitch,
Please contact me at your convenience.
Dathan,
1
Thanks,
Jimmy
I just wanted to make you aware that someone improperly discharged (dumped) a slug load of chlorine / bleach into the
sewer system late yesterday afternoon. It was first noticed at the Stantonsburg pump station while several mechanics
From: Barry Parks
Sent: Thursday, January 22, 2015 8:45 AM
To: Dathan Shows
Cc: Jimmy Pridgen; Rodney Martin; Harry Tyson
Subject: Illegal discharge to WRF
Jimmy Pridgen <jpridgen@WILSONNC.ORG>
Thursday, January 22, 2015 11:43 AM
Hayes, Mitch
FW: Illegal discharge to WRF
City of Wilson
Water Reclamation Facility
P.O. Box 10
3100 Stantonsburg Road
Wilson, NC 27894-0010
"It is not the strongest of the species
that survives, nor the most intelligent,
but the one most responsive to change."
— Charles Darwin
From:
Sent:
To:
Subject:
Water Reclamation Manager
Office: 252-399-2491
Mobile: 252-205-2519
Fax: 252-399-2209
Email: ipridqen@wilsonnc.org
Website: www. wilsonnc. ora
Left you a voice mail message this morning (11:35 AM) about the incident outlined below. Just wanted to make sure you
were informed. We are not aware of any negative impacts to our process at this time.
2
It appears that for the second time in less than 6 years a major event may have been avoided. We will again review all
procedures and ask the WPD to alert us to any suspicious activity around any manholes in our system. Again this was
handled by everyone, but I did feel that this was an important enough event to make you aware. Again thanks to Jimmy
and all his operations, maintenance, and lab staff for reacting quickly, and to Rodney and his staff for immediately
investigating the entire Toisnot Outfall so quickly to determine the extent of discharge and to try to pinpoint the source.
Please contact me with any questions.
Pursuant to North Carolina General Statutes, Chapter 132.et.seq.. this electronic mail message and any
attachment hereto, as well as any electronic mail message(s) that may be sent in response to it may be
considered public record and as such are subject to requests for review.
Barry G. Parks
Director of Water Resources
City of Wilson
PO Box 10
3110 Forest Hills Road
Wilson, N.C. 27894
(252) 399-2374
Fax (252) 399-2381
bparks(8)wilsonnc.org
were working on a pump. We immediat esponded and began removing manhole^^ers and investigating upstream
of the station in numerous locations, and investigated at two different chemical companies (Cox and Water Guard) as
well as at the Toisnot WTP who potentially could have released something without approval. Nothing was found at any
of the 'obvious' potential sources. The chlorine was traced as far upstream as the Longview Pump Station 1/2 mile
downstream of the Operations Center, but was not observed in the Longview neighborhood, on Firestone Outfall, or on
the twin lines north of the operations center towards Toisnot Lake. A similar event happened 5 1/z years ago and was
believed at that time to have come from the Longview neighborhood area. Levels as high as 14 ppm of chlorine (almost
2X a pool amount were observed at the head of the plant). The slug lasted for a period of about one hour. Immediately
after the observation of chlorine at the pump station, staff began the addition of sodium bisulfite to remove the chlorine
residual at the plant headwork. Primary clarifiers and other tanks were subsequently monitored downstream and only
trace amounts (0.1-0.15 ppm) were observed in the primary clarifiers due to the quick work of all involved. This was also
de-chlorinated by sodium bisulfite at the effluent box of the clarifiers. The event was also reported to NCDENR this
morning. Obviously, any large amount of chlorine at the WRF could have been devastating to the microorganisms who
are used for processing waste.
Hayes, Mitch
Thanks Mitch!
Hope you have a great weekend. Hope you also have Monday off too!
JP
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties.
Mitch,
City of Wilson
1
From: Hayes, Mitch fmailto:mitch.hayes@ncdenr.qovl
Sent: Friday, January 16, 2015 3:49 PM
To: Jimmy Pridgen
Subject: RE: City of Wilson
After our recent conversation about flow overwhelming the number 1 secondary clarifier during the recent 4 inch
rainfall Wilson experienced on 01.13.2014,1 have concluded that this situation does not have to be reported as a bypass.
If you have any questions concerning this email, please contact me.
Have a great weekend.
From: Jimmy Pridgen [mailto:jpridgen@WILSONNC.ORGl
Sent: Thursday, January 15, 2015 5:21 PM
To: Hayes, Mitch
Subject: City of Wilson
Hope you are doing well today. I looked on the website and I see two forms for reporting WWTP
Upset/Spill/Bypass. Do you have a preference for either in regards to our recent event? Also, do you have an incident #
assigned yet in case I need it for the form?
Thanks a bunch!
Jimmy
From:
Sent:
To:
Subject:
Mitch Hayes, Environmental Specialist
NCDENR - Division of Water Resources
Water Quality Regional Operations Section
1628 MSC, Raleigh, NC 27699-1699
(P) 919.791.4261 - (F) 919.788.7159
http://portal.ncdenr.org/web/wq/
fawny ‘P’lidqen
Water Reclamation Manager
Jimmy Pridgen <jpridgen@WILSONNC.ORG>
Friday, January 16, 2015 3:58 PM
Hayes, Mitch
RE: City of Wilson
2
Pursuant to North Carolina General Statutes, Chapter 132,et.seq., this electronic mail message and any
attachment hereto, as well as any electronic mail message(s) that may be sent in response to it may be
considered public record and as such are subject to requests for review.
Water Reclamation Facility
P.O. Box 10
3100 Stantonsburg Road
Wilson, NC 27894-0010
"It is not the strongest of the species
that survives, nor the most intelligent,
but the one most responsive to change."
— Charles Darwin
Office: 252-399-2491
Mobile: 252-205-2519
Fax: 252-399-2209
Email: jpridqen (a) wilsonnc. orq
Website: www. wilsonnc. orq