NC0024201_Historical information_20151231

Smith, Danny
Thanks!
FYI.
Thanks!
Justin D. Blackmon, E.I. | Utility Engineer | Safety Officer
Ph 252.537.9137 | Fax [phone] | Cell 252.885.0556 | Email [e-mail]
Delivering safe drinking water while protecting environmental water quality
1
To:
Cc:
Subject:
Thank you. I will add this to your NPDES file.
Danny
From: Dan Brown rmailto:[e-mail]'|
Sent: Wednesday, June 03, 2015 12:54 PM
To: Smith, Danny
Cc: Gregg Camp; Justin Blackmon
Subject: FW: Roanoke Rapids
Danny...This will confirm our conversation earlier today. Our Rotamat bar screen vendor has informed us that our
replacement screen will be on site July 20, 2015. We anticipate that installation will begin immediately upon receipt of
the equipment and completed before the end of July. We will continue to keep you posted on our progress.
From: Justin Blackmon rmailto:[e-mail]]
Sent: Tuesday, June 02, 2015 3:22 PM
To: qcamp(a)rrsd.orq; [e-mail]; 'Dan Brown'
Subject: FW: Roanoke Rapids
Dan Brown
Gregg Camp; Justin Blackmon
RE: Roanoke Rapids
Danny Smith, Supervisor
Raleigh Regional Office
Water Quality Regional Operations
Division of Water Resources
[phone]
Dan Brown | chief executive officer
Ph 252.537.9137 I Fax [phone] I Cell 252.885.0553 I Email [e-mail]
Delivering safe drinking water while protecting environmental water quality
Roanoke Rapids Sanitary District
1000 Jackson Street | PO Box 308 | Roanoke Rapids, NC 27870 | www.rrsd.org
Please consider the natural environment before printing this e-mail.
Z7(Vu
Roanoke Rapids Sanitary District
Best Regards
Sam
Max,
Thanks!
Justin D. Blackmon, E.I. I Utility Engineer | Safety Officer
Ph 252.537.9137 | Fax [phone] | Cell 252.885.0556 | Email [e-mail]
Delivering safe drinking water while protecting environmental water quality
Roanoke Rapids Sanitary District
2
From: Adams, Sam [mailto:[e-mail]'|
Sent: Tuesday, June 02, 2015 2:25 PM
To: Justin Blackmon; 'Max Foster'
Cc: van Ettekoven, Henk; Macomber, Steve; Tolentino, Wes
Subject: RE: Roanoke Rapids
Hello Justin. I am making final travel arrangements for the equipment and will give you the specifics by this time next
week. We will send you shipping advisory information giving weights and dimensions of crating etc. 7-10 days before the
screen arrives. At present, we are to pick the screen-up at our factory the week of July 6. We are going to air freight the
screen so it should arrive at site by the week of 7-20-15. This will save a few weeks on delivery instead of using ocean
freight. I will give exact details as soon as I have them.
Do we know an approximate delivery date for the unit yet? We want to be sure we can efficiently schedule the installing
contractor.
1000 Jackson Street | PO Box 308 | Roanoke Rapids, NC 27870 | www.rrsd.org
Please consider the natural environment before printing this e-mail.
1000 Jackson Street | PO Box 308 | Roanoke Rapids, NC 27870 | www.rrsd.org
Please consider the natural environment before printing this e-mail.
From: Justin Blackmon [mailto:[e-mail]]
Sent: Tuesday, June 02, 2015 12:06 PM
To: 'Max Foster'
Cc: van Ettekoven, Henk; Adams, Sam; Macomber, Steve
Subject: RE: Roanoke Rapids
WEF Residuals & Biosolids in Washington, DC on June 8th and 9th.
Roanoke Rapids Sanitary District
May 26, 2015
JUN 1 6 2015
NCDENRRai u.iice
RE:
Dear Mr. Smith,
9) Fourteen Drying Beds
The Raleigh Regional Office conducted a site evaluation on April 2, 2015 at the District's Wastewater
Treatment Plant (WWTP). The Roanoke Rapids Sanitary District (RRSD) received the Compliance
Evaluation Inspection report on May 7, 2015. We would like to comment on and/or respond to several
items in the inspection report.
RRSD also has comments on the Water Compliance Inspection Report Section D: Summary of
Finding/Comments:
Cascade aeration should be stricken from the narrative. This process does not exist.
Pennit Comment: The facility re-purposed old secondary clarifiers for influent equalization storage/sludge
storage. References to sludge storage for these old secondary clarifiers should be deleted here and in the
NPDES Compliance Evaluation Inspection
NPDES Permit Number NC0024201
Roanoke River WWTP, Halifax County
Mr. Danny Smith. Supervisor
Raleigh Regional Operations Section
NC DENR, Division of Water Quality, NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina, 27699-1617
P.O. Box 308
1000 Jackson Street
Roanoke Rapids, NC 27870
[phone]
Fax: [phone]
wxvw.rrsd.org
fhe comprehensive inspection report truly represented the plant process and general arrangement of the
Roanoke River WWTP. However, there are a few unit processes that were not fully characterized in the
report, per the following underlined ‘‘general” components:
1) Influent Pump Station with four pumps: 2-rated for 7 MOD, 1-4 MGD and 1-2 MGD
2) Repurposed secondary clarifiers used as Influent Storage/Equalization
3) Mechanical Bar Screen/Rotamat Rag Remover/Vortex Grit Removal/Two Classifiers, and one
gravity Detrittor
The Compliance Inspection Report indicated that the WWTP’s composite sampler should be moved
downstream of dechlorination. However, the hydraulics downstream of dechlorination is not conducive to
accurate composite sampling and wastewater characterization. The effluent composite sample location
issue was discussed with the Raleigh Regional Office in 1992, per the attached confirmation letter dated
December 29. 1992. In 1992, it was mutually determined that a sample point downstream of the
secondary7 clarifiers was representative of the effluent wastewater characterization and therefore accurate
composite sampling for total suspended solids (TSS) and biochemical oxygen demand (BOD) could be
performed at this location. Our remaining compliance grab samples are sampled downstream of
dechlorination. A discussion during the April 2015 inspection with the Raleigh Regional Office inspector
reaffirmed the hydraulics issue downstream of dechlorination.
Grit Removal Comment: One Vortex Removal, two classifiers, one gravity detrittor.
Anaerobic Digester Comment: The facility has two primary and one secondary anaerobic digester. Metal
work and cleaning completed on Digester #1 and it wd4 was placed back on line late summer fall 2014.
Disinfection-Liquid Comment: Note: The backup chlorine gas/sulfur dioxide gas system is left over from
the regulatory requirement to maintain disinfection efficacy during construction. Our research has
detennined "chlorine and sulfur dioxide cylinders should be located in separate rooms” (EPA. “Wastewater
Technology Fact Sheet Dechlorination”. EPA 832-R-00-022 September 2000.) is recommended for the typical
dechlorination process. RRSD intends to separate the gases.
We very much appreciate the time and effort of the Raleigh Regional Operations Section in conducting a
compliance evaluation inspection of our facility. We would be interested in meeting with you and your
staff to further discuss the mutual benefit of the facilities effluent composite sample location at your
convenience: and look forward to your favorable consideration of our notations. Please do not hesitate to
call Gregg Camp (252-536-4884) or me (252-537-9137 ext 225) if you have any questions.
Bar Screen Comment: Rotamat Rag Remover- New one being built for installation Mid May 2015.
Although the comment is correctly stated al the time of the compliance evaluation inspection, RRSD has
since learned the installation of the new Rotamat Rag Remover is now scheduled for early August. RRSD
will continue to update Raleigh Regional Operations Section.
following paragraph of the narrative. RRSD has elected to reserve these tanks solely for equalization, at
this time.
Is flow meter used for reporting?
Is flow meter calibrated annually?
Is flow meter operational?
Aerobic Digester Stabilized Biosolids Storage Tank (SB ST) Note: The SBST is not an Aerobic Digester
nor is the unit process present at the referenced facility. Comment: The facility has 1,000.000 gallon
Sludge Storage Tank with mixing (cleaned and checked with mixers serviced and/or replaced annually by
staff: and SBST inspected by installer every ten years), as well as two repurposed (old secondary
clarifiers)-that can also be used for sludge storage Note: While the repurposed secondary clarifiers is
correctly stated, RRSD has elected to reserve these lower storage tanks for equalization.
No
NA
NA
Flow Measurement - Effluent Comment: Both influent and eEffluent flow is measured. Please note that
RRSD does not have an influent flow meter.
Very Truly Yours.
Roanoke Rapids Sanitary District
R. Danieley Brown/P.E.
Chief Executive Officer
Pump Station - Influent Comment: ...influent pump station (4 pumps-two 7 MGD, 1-4 MGD. 1-2 MGD)
Pumps originally installed approx. 1963 and rebuilt replaced with high efficiency motors in 198-5 2005.
enclosure
cc: Gregg Camp, ORC Roanoke River WWTP
Flow Measurement - Influent
Roanoke Rapids Sanita^ District
P.O. Box 308 635 Hamilton Street Roanoke Rapids, North Carolina 27870 (919) 537'9137
P.E.
NPDES Permit NC0024201Re:
Dear Mr. Mouberry:
No additional treatment is provided after the final clarifier.
determined after extensive parallel tests comparing
Very truly yours,
Macon Reavis,G.Jr.
Enclosures
WWTPcc:
The primary effluent measuring device at the District's WWTP is a
sharp crested weir which, unlike a flume, will maintain a full
pipe from the final clarifier to the sampling/measuring station.
Mr. Arthur Mouberry,
Regional Supervisor
Raleigh Regional Office
Division of Environmental Management
NG Department of EHNR
3800 Barrett Drive
Raleigh, N. C. 27611
This issue was discussed during our meeting of November 13, 1992,
and you suggested that we notify the Regional Office in writing
since the subject permit requires notification prior to reloca­
tion of sampling points. The relocated sampling station would be
located at the trough leaving the final clarifiers.
We have determined after extensive parallel tests comparing
results at the final clarifier and at the effluent weir that TSS
results at the measuring point do not accurately reflect the
plant's efficiency because of sloughing of the zoogleal mass
within the 1,020 feet of 36" pipe from final clarifier to the sam­
pling point. This problem is further complicated by the section
of effluent pipe from the effluent weir to the river which passes
back underneath the weir and creates a setting basin within the
flow measuring tank.
December 29, 1992
Should additional information be required, please advise.
* [
May 1,2015
Dear Mr. Brown,
The following summary of observations is provided:
Pat McCrory
Governor
On April 2, 2015, Autumn Romanski of the Raleigh Regional Office (RRO) conducted a
compliance evaluation inspection of the subject facility. The assistance provided by Mr. Greg
Camp and the Roanoke Rapids Facility Staff was greatly appreciated. . I would like to also thank
you for your time and assistance. The inspection report checklist is attached.
Roanoke Rapids WWTP (Classification WW-4) is permitted to discharge 8.34 MGD. The
current flow averages between 3-4 MGD with a high daily flow reported of 15 MGD in April
and September of 2014.
Donald R. van der Vaart
Secretary
Subject: NPDES Compliance Evaluation Inspection
NPDES Wastewater Discharge
Permit No. NC0024201
Roanoke Rapids WWTP
Halifax County
Mr. R. Danieley Brown
Chief Executive Officer
Roanoke Rapids Sanitary District
PO Box 308
Roanoke Rapids, NC 27870
HCDEHR
North Carolina Department of Environment and Natural Resources
PLEASE respond to the written request that follows on page 2 of this letter with copy of DWR
approval of effluent composite sample location within 30 days of receipt of this report.
The WWTP consists of the following “general” components:
1) Influent Pump Station with four pumps (2) rated for 7 MGD, and (2) rated for 4 MGD
2) Repurposed secondary clarifiers used as Influent Storage/Equalization/or Sludge
Storage
3) Mechanical Bar Screen/Rotomat Rag Remover/Vortex Grit Removal/Two Classifiers,
and one Detrittor.
4) Two Primary Clarifiers/Two Trickling Filters/Three Aeration Basins
5) Three Anaerobic Digesters
6) Two Sludge Tanks with ABS Gravity Sludge Pump and Belt Thickner
7) WAS Alkaline Stabilization- Class B solids
North Carolina Division of Water Resources 1628 .Mail Service Center
Internet: www ncwaterqualitv .org Location: 3800 Barrett Drive I
Raleigh, NC 27699-1628 Phone [phone] Customer Service
Raleigh, NC 27609 Fax [phone]
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper North Carolina
Naturally
clear and free of debris. Clear water could be seen mixing
Cc:
2 | P a g e
The Primary ORC is Greg Camp, WW-4 certified Operator. The ORC logbook, lab results,
chain of custody forms, and DMR’s were complete and current and readily available for review.
The months of July 2014 and January 2015 were reviewed with no discrepancies found.
Enclosures
RRO- File
DWR- Central Files
8) One Million Gallon Sludge Storage Tank
9) Eight Drying Beds
10) Two Secondary-Final Clarifiers
11) Disinfect!on/Chlorine Contact Chamber/Dechlorination
The facility discharges the treated effluent to the Roanoke River, Class C waters in the Roanoke
River Basin. The solids are currently land applied under Land Application Permit.
dv zZx /
Danny Smith ‘
Raleigh Regional Operations Section Supervisor
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 registering for eDMR submittal and obtaining an eDMR
user account please visit DWR webpage and review carefully the User Registration and User
Documentation tabs, http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr
If you have any questions about this process please contact Autumn Romanski at 919.791.4255.
Effluent composite sampling is beins performed at the Secondary Clarifier, which is not below
all treatment. The effluent is disinfected, flows through a contact chamber, and is dechlorinated
after secondary clarification. Il was explained that the facility has the written approval from
DWR to use this effluent composite sample location. PLEASE provide a copy of DWR written
approval of effluent composite sample location within 30 days of receipt of this report or
contact the Raleigh Region at 919-791-4255, if no copy can be located.
The Outfall 001 discharge flow was
in with the river water.
The overall condition of the facility was compliant with NPDES permit requirements reviewed
on the day of this inspection. If you have questions regarding the attached inspection report or
findings please contact Autumn Romanski at: [phone] or at e-mail
[e-mail].
Sihcer^y,
b
ERA
Section A: National Data System Coding (i.e., PCS)
Inspection Typeyr/mo/dayNPDES
3 I NC0024201 15/04/02
2ii 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 QA •Reserved-
72
Section B: Facility Data
Entry Time/Date Permit Effective Date
13/04/0109:00AM 15/04/02
Roanoke River WWTP
Exit Time/Date
135 Aqueduct Rd
15/04/0201:00PMWeldon NC 27890
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
Gregg Camp.PO Box 308 Roanoke Rapids NC 27870//252-536-4884/
No
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
Autumn H Romanski RRO WQ//919-791-4247/
1Page#
I17
Permit
9 Self-Monitoring Program
B Laboratory
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
///
Alan Gregg Camp/ORC/919-536-4884/
9 Flow Measurement
J Sludge Handling Disposal
Operations & Maintenance
Facility Site Review
Records/Reports
Effluent/Receiving Waters
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Permit Expiration Date
17/03/31
United States Environmental Protection Agency
Washington, D C. 20460
Water Compliance Inspection Report
Inspector
19N L±J
Inspection Work Days
671______N
Date
5
Transaction Code
1
73 MJ74 75l I I I I I I I80
Facility Self-Monitoring Evaluation Rating
70 u
Fac Type
20 uJ11
Signature of Management's A Reviewer // Agency/Office/Phone and Fax Numbers Date
EPA Form 356j/3 (Rev 9-94) Previous editions are obsolete.
12 I 18 L£j
71U
2U
NPDES yr/mo/day 1
3[18NC002420115/04/02
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
The permittee was compliant with the permit requirements reviewed the day of this inspection.
2Page#
12[I11
However, the NPDES Effluent composite samples (except for grab for TRC) is taken at the clarifiers
prior to chlorination, chlorine contact chamber, dechlorination, and cascade aeration. The facility
indicated they have written approval from DWR to use the current sample location at the clarifiers.
Inspection Type
LcjI17
Roanoke River WWTP
Compliance Evaluation
Permit Yes No NA NE

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?
Comment:The facility re-purposed old secondary clarifiers for influent storaqe/sludqe Storage-
Operations & Maintenance Yes No NA NE
■ Is the plant generally clean with acceptable housekeeping?
■
Comment:
Flow Measurement - Influent Yes No NA NE
■ # 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:Flow meter readings are observed at the PLC - with flowchart as back-up
Open Channel Flow - rectangular, the flowmeter was last calibrated March 17,2015.
Flow reading the day of the inspection @10 AM was 3.4 MOD.
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?
3Page#
Owner - Facility:
Inspection Type:
(If the present permit expires in 6 months or less). Has the permittee submitted a new
application?
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable
Solids, pH, DO, Sludge Judge, and other that are applicable?
Permit: NC0024201
Inspection Date: 04/02/2015
Hg Minimization Plan - The facility has developed a Hg Minimization Plan as reguired by the
permit condition A.4.
*Permit Description needs to be updated by permit writer upon permit renewal. 1) Add two
(375,000 gallons each) Influent/Sludge Storage, and one (1,000,000 Gallon) Sludge Storage
Tank 2) Add Influent Pump Station (4 pumps) 3) Filter recirculation pumps (3 pumps) 4)
Filter Effluent Pump Station (4 pumps) 5) Effluent Flood Pump StationQ pumps for use if
needed) 6) RAS Pump Station 7) WAS Pump Station 7) Two Gravity Sludge Thickners
8) Gravity Belt Thickner 9) Thickened Sludge Pump Station 10) Sludge Transfer Pump
Station
Roanoke River WWTP
Compliance Evaluation
Pump Station - Influent Yes No NA NE
■ 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?
Rotomat Rag Remover - New one being built for installation Mid May 2015Comment:
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?
One Vortex Grit Removal, two classifiers, one detrittor.Comment:
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 adeguate?
4Page#
Six pumps stations flow to the influent pump station (4 pumps- two 7 MGD, two 4 MGD).
Pumps originally installed approx. 1963 and rebuilt with high efficiency motors in 1983.
Owner - Facility:
Inspection Type:
Permit: NC0024201
Inspection Date: 04/02/2015
Roanoke River WWTP
Primary Clarifier Yes No NA NE
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 7« of the sidewall depth)
Comment:
A degreaser is fed at the Primary Clarifier as needed
Trickling Filter Yes No NA NE
9 Is the filter free of ponding?
■ Is the filter free of leaks at the center column of filter’s distribution arms?
■ Is the distribution of flow even from the distribution arms?
■ Is the filter free of uneven or discolored growth?
■ Is the filter free of sloughing of excessive growth?
■ Are the filter’s distribution arms orifices free of clogging?
■ Is the filter free of excessive filter flies, worms or snails?
Comment:
Aeration Basins Yes No NA NE
Mode of operation Plug flow
Type of aeration system Jet
■ 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?
a Does the foam cover less than 25% of the basin's surface?
■ Is the DO level acceptable?
■ Is the DO level acceptable?(1.0 to 3.0 mg/l)
The facility has three Aeration Basins (4 Blowers) and are plug flow/jet designComment:
5Page#
Permit NC0024201
Inspection Date: 04/02/2015
Owner - Facility:
Inspection Type: Compliance Evaluation
Two primary clarifiers operat
in parallel (rehabilitated 5 years ago). Sludge Blanket was at 1/3 of sidewall depth-appeared
to adeguately waste as needed.
The facility has two trickling filters in parallel, mounts replaced/updated aprox, 10 years ago.
Filters have Scada Alarm System-
Facility has Two Primary Clarifiers operating in parallel that were rehabilitated 5 years ago.
One primary clarifier was in use teh day of this inspection.
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 X of the sidewall depth)
Comment:
Some denitrification was observed at the secondary clarifiers.
Pumps-RAS-WAS Yes No NA NE
Are pumps in place?
Are pumps operational?
Are there adequate spare parts and supplies on site?
Comment:
Anaerobic Digester Yes No NA NE
Type of operation:Floating cover
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:
6Page#
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Permit: NC0024201
Inspection Date: 04/02/2015
Owner - Facility: Roanoke River WWTP
Inspection Type: Compliance Evaluation
The facility has two primary and one secondary anaerobic digester. Metal work and cleaning
completed on Digestor #1 and it will be placed back on line late summer.
The facility has two rectangular traveling bridge secondary/final clarifiers. Some still spots
due to disgn of rectangular in shape.
Return Activated Sludge averages 30,000 gallons/day, but facility has capacity to pump up to
100,000 gallons/day.
Roanoke River WWTP
Aerobic Digester Yes No NA NE
■ Is the capacity adequate?
■ Is the mixing adequate?
■ Is the site free of excessive foaming in the tank?
■ # Is the odor acceptable?
■ # Is tankage available for properly waste sludge?
Comment:
Solids Handling Equipment Yes No NA NE
■ Is the equipment operational?
■ Is the chemical feed equipment operational?
■ Is storage adequate?
Is the site free of high level of solids in filtrate from filter presses or vacuum filters?
Is the site free of sludge buildup on belts and/or rollers of filter press?
■ Is the site free of excessive moisture in belt filter press sludge cake?
■ The facility has an approved sludge management plan?
Comment:
Approx. 2.600,000 gallons of 5% solids is applied to estimated 226 acres per year.
Drying Beds Yes No NA NE
■ Is there adequate drying bed space?
■ Is the sludge distribution on drying beds appropriate?
a Are the drying beds free of vegetation?
# Is the site free of dry sludge remaining in beds?
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?
One drying bed was in use the day of this inspection. Drying beds are used as/if neededComment:
7Page#
Permit NC0024201
Inspection Date: 04/02/2015
The facility has 1,000,000 gallon Sludge Storage Tank (cleaned annually and inspected
every ten years), as well as two repurposed (old secondary clarifiers) that can also be used
for sludge storage.
The facility produces Class B solids with WAS alkaline stabilization process and anaerobic
digestors.
The facility has an approved sludge management plan- that includes processing of
additional solids from the Roanoke Rapids Water Treatment Plant.
Owner - Facility:
Inspection Type: Compliance Evaluation
Roanoke River WWTP
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?
Effluent flows by gravity or can be pumped if neededComment:
Flow Measurement - Effluent Yes No NA NE
■ # 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:
Disinfection-Liquid Yes No NA NE
Is there adequate reserve supply of disinfectant?
■ (Sodium Hypochlorite) Is pump feed system operational?
■ Is bulk storage tank containment area adequate? (free of leaks/open drains)
Is the level of chlorine residual acceptable? ■
Is the contact chamber free of growth, or sludge buildup?
Is there chlorine residual prior to de-chlorination?
Comment:
De-chlorination Yes No NA NE
Type of system ?Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
8Page#
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Permit: NC0024201
Inspection Date: 04/02/2015
A back-up system is of chlorine gas and sulfur dioxide gas is on-site housed in the same
room. Please ensure compliance with safety and storage reguirements for these gases.
The Authorization and CG & L Loan included demolition of the old gas disinfection and
declorination along with pipes and appurtenances. The need for keeping the gas as a
backup should be balanced with maintaining safety and other regulations as may be
applicable.
The installation of a hypochlorite and sodium bisulfite bulk storage and feed system was
completed per an Authorization to Construct in 2009-2010.
Both influent and effluent flow is measured. The effluent flowmeter by the Roanoke River is
used for reporting and used for composite flow sampler located at the secondary/final
clarifiers. The channel is open flow with a staff gauge present.
Owner - Facility:
Inspection Type: Compliance Evaluation
Roanoke River WWTP
De-chlorination Yes No NA NE
Is storage appropriate for cylinders?
■ # Is de-chlorination substance stored away from chlorine containers?
■ Are the tablets the proper size and type?
Sodium Bisulphite liquid is used for DechlorinationComment:
■ Are tablet de-chlorinators operational?
Number of tubes in use?
Comment:
Chemical Feed Yes No NA NE
■ Is containment adequate?
■ Is storage adequate?
■ Are backup pumps available?
■ Is the site free of excessive leaking?
Comment:Caustic is fed as needed for pH control, but it was explained caustic is rarely needed
Polymers are fed as needed, feed equipment and storage appeared to be in good condition
Effluent Sampling Yes No NA NE
■ Is composite sampling flow proportional?
Is sample collected below all treatment units?
■ Is proper volume collected?
■ Is the tubing clean?
■
■
Effluent Composite Sampling is completed at teh secondary/final clarifiers.Comment:
Effluent Pipe Yes No NA NE
■ Is right of way to the outfall properly maintained?
■ Are the receiving water free of foam other than trace amounts and other debris?
■ If effluent (diffuser pipes are required) are they operating properly?
Comment:
9Page#
Permit: NC0024201
Inspection Date: 04/02/2015
# 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: Compliance Evaluation
Upstream / Downstream Sampling Yes No NA NE
■
Comment:
Standby Power Yes No NA NE
Is automatically activated standby power available?
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
Was generator tested & operational during the inspection?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
Is the generator fuel level monitored?
Comment:
Record Keeping Yes No NA NE
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?
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 DWQ?
■ Is the ORC visitation log available and current?
■ 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?
10Page#
Is the facility sampling performed as required by the permit (frequency, sampling type, and
sampling location)?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
on each shift?
■
■
■
■
■
■
■
■
■
■
■
Permit: NC0024201
Inspection Date: 04/02/2015
The facility has a 750 Kwatt generator that can run the plant in event of power loss and
participates in NC Power Curtailment Program, exercising back-up power regularly as part
of this program.
■
■
■
Owner - Facility: Roanoke River WWTP
Inspection Type: Compliance Evaluation
Roanoke River WWTP
Compliance Evaluation
Record Keeping Yes No NA NE
■ 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:
Laboratory Yes No NA NE
■ 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?

■ Incubator (Fecal Coliform) set to 44.5 degrees Celsius*/- 0.2 degrees?
■ Incubator (BOD) set to 20.0 degrees Celsius +/-1.0 degrees?
Comment:
11Page#
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
Celsius)?
Owner - Facility:
Inspection Type:
Permit: NC0024201
Inspection Date: 04/02/2015
V
Level of Treatment:
—None —Primary Treatment Y_Secondary Treatment Chlorination/Disinfection Only
No
Describe the Repairs Made or Actions Taken:
Incident Started:
Incident Ended:
Permit Number: /*/Coq akjaoi
County:
Permittee:
//i
Estimated Volume of Spill/Bypass: / 55^i I 7
Did the Spill/Bypass reach the Surface Waters?
If yes, please list the following:
Volume Reaching Surface Waters: Surface Water Name:
Did the Spill/Bypass result in a Fish Kill?Yes t / No
Facility Name: /?z/^r
—_(must be given even if it is a rough estimate)
es No
WWTP Upset, Spill, or Bypass 5-Dav Reporting Form
(Please Print or Type Use Attachments if Needed)
Date. j a- a w - ih
Date: / y
Was WWTP compliant with permit requirements? -x/ Yes
Were samples taken during event? /Yes No
i'f'ir-e) resu/ti/'j
Source of the Upset/Spill/Bypass (Location or Treatment Unit):
North Carol® Department of Environmen^d Natural Resources
Division of Water Quality
SDiO’s 2^o
Time: 3:op ____
Cause or Reason for the Upset/Spill/Bypass:
3»7? /'Arge <////
I
Additional Comments About the.Event:
24-Hour Report Made To:Emergency ManagementDivision of Water Quality
Z7!Date: /<5 ^7- /V Time:
Other Agencies Notified (Health Dept, etc):
Phone Number: -
—Yes y/No

Spill/Bypass Reporting Form (August 1997)
Did DWQ Request an Additional Written Report?
If Yes, What Additional Information is Needed:
Person Reporting Event:
Contact Name:
ActionTaken or Proposed to be Taken to Prevent Occurrences:
AgtiorQaken.to Contain Spill, Clean Up.and Remediate the Site (if applicahleY
WWTP Upset, Spill-Seypass 5-Day Reporting Form
Page 2