NC0024201_Historical information (Including performance report)_20181231

Roanoke Rapids Sanitary District
February 19,2018
Re:
Dear Mr. Smith:
R. Danieley Br<
Enclosures
Cc:
h M'pfcsprmuivn sjs |KrfoimaiKC ann report lrr.doc
Enclosed please find three (3) copies of Roanoke Rapids Sanitary District’s System
Performance Annual Report for calenday year 2017. This report is submitted to meet the
requirements of the NCDEQ policy to promote public oversight of system performance for
reduction and elimination of sanitary sewer overflows (SSO’s) from wastewater collection
or treatment works.
If these documents should be provided to additional DWQ personnel; or if additional
information is required, please contact me.
Very truly yours,
Roanoke Rapids Sanitary District
Steven Ellis
David Scott
File
CERTIFIED MAIL 7005 3110 0001 6339 2395
RETURN RECEIPT REQUES TED
Mr. Danny Smith, Environmental Regional Supervisor
North Carolina Division of Water Resources
The Water Quality Regional Operations Section
1628 Mail Service Center
Raleigh, N. C. 27699-1628
2017 System Performance Annual Report
Collection System #WQC00027
NPDES #NC0024201
NCG110000
P.O. Box 308
1000 Jackson Street
Roanoke Rapids, NC 27870
[phone]
Fax: [phone]
www.rrsd.org
Page:
1/1
4^%
4^
, _joWn,P.E.
Chief Executive Officer
2017
System Performance Annual Report
Roanoke River Waste Treatment Plant NC0024201 &
Collection System WQ.CS00027
<0
Abstract
The System Performance Annual Report provides key performance information that
demonstrates the POTW's accountability to ensure Roanoke Rapids Sanitary District's
stewardship and prosperity by addressing its environmental, operations, and maintenance
challenges through transformative process and technology solutions.
Steven L. Ellis & David W. Scott
[e-mail] [e-mail]
WJ.
General Information:I.
C. Person in charge/contact
D. Applicable Permit(s)
Page 1
Roanoke Rapids Sanitary District
2017 System Performance Annual Report
A. Regulated entity: Roanoke Rapids Sanitary District, Collection Systems (C.S.) and
Wastewater Treatment Plant (WWTP), together
Publicly Owned Treatment Works (POTW)
E. Description of C.S.:
The collection system consists of approximately 146 miles of sewer lines and six
lift stations that serve Roanoke Rapids, Gaston, and Portions of Halifax and
Northampton Counties encompassing an approximate population of 17,600. The
sewer lines within Roanoke Rapids, Gaston and all sub-divisions, which connect to
the two main Interceptors, range in size from 8" to 12". There are two main
Interceptors transporting wastewater to the WWTP.
2. WWTP: National Pollution Discharge Elimination System (NPDES): NC0024201
Land Application (L.A.): WQ0001989
Stormwater (General): NCG110000
1. C.S.: North Carolina Environmental Management Commission System-wide
Wastewater Collection System Permit No. WQCS00027
2. WWTP: Steven L Ellis, Operator in Responsible Charge (ORC)
Timothy Skipper, Back-up ORC
Roanoke River Wastewater Treatment Plant
135 Aqueduct Road
Weldon, NC 27890
Phone: [phone]
1. C.S.: David Warren Scott, Operator in Responsible Charge (ORC)
Eric Wes Deaton, Back-up ORC
Roanoke Rapids Sanitary District, Distribution & Collection
425 East 11th St.
Roanoke Rapids, NC 27870
Phone: [phone]
B. Responsible entity: Roanoke Rapids Sanitary District, Dan Brown, CEO
PO Box 308
Roanoke Rapids, NC 27870
Page 2
Roanoke Rapids Sanitary District
2017 System Performance Annual Report
F. Description of WWTP:
The wastewater treatment plant is rated at 8.34 million gallons per day (MGD).
Peak flow is rated at 12.5 MGD.
The Roanoke River Interceptor collects wastewater from basins located on the
north side of the Sanitary District. The Gaston sub-basin and Northampton County
are also served by this interceptor. The Interceptor begins just west of NC 48 in
Roanoke Rapids. There are 3 primary basin pump stations and 2 secondary pump
stations along the route. Pipe sizes for the Interceptor range from 18" to 30".
Treatment processes at the wastewater plant include grit and rag removal. This
is followed by primary clarification, trickling filter biological secondary treatment,
activated solids treatment, secondary clarification, final effluent chlorination/de-
chlorination processes, and final pH adjustment.
The Chockoyotte Creek Interceptor serves the south side of the Sanitary District
and three sub-divisions located outside the Roanoke Rapids city limits; Lake View
Park, Greenbriar, and Lincoln Heights. The Interceptor begins east of Zoo Road.
There is one primary basin pump station along the route. Pipe sizes range from
12" to 30".
The system has six sewer lift stations. Three stations are located in the Gaston
sub-basin. One of these serves a Northampton County School, one serves the
Chowan Housing Projects and the other station pumps all flows from Gaston and
Northampton County via a 6" force main suspended from the NC 48 Bridge
spanning the Roanoke River to the Roanoke River Interceptor. The remaining
three pump stations are located within Roanoke Rapids sub-basins. Two of the
stations, Belmont and Poplar Springs, discharge to the Roanoke River Interceptor
while the Greenbriar Pump Station discharges to the Chockoyotte Creek
Interceptor.
During these processes solids are removed from two locations. Primary
clarification removes settleable solids from incoming wastewater to an anaerobic
digestion unit. Here the solids, in the absence of oxygen, receive pH adjustment,
mixing, and heating to produce a stabilized material. Once the solids are stable,
excess water is decanted and returned to the plant for further treatment. The
stabilized, thickened solids are treated with lime for odor control then removed
to a holding tank to await land application.
Performance:II.
1. C.S:
2. WWTP:
Page 3
Roanoke Rapids Sanitary District
2017 System Performance Annual Report
There are two pumping stations in the wastewater plant distributing wastewater
into and through the plant. They are the Influent Pump Station and the Trickling
Filter Effluent Pump Station. The Influent Pump Station has the capacity to pump
20 MGD and the Trickling Filter Effluent Pump Station 27 MGD. In conjunction
with these two pump stations there is the Emergency Flood Pump Station with a
capacity of 21 MGD to remove treated effluent from the plant during high river
stages which prevent normal gravity flow discharge. Also, a storm water pump
station has been installed. This station intercepts site runoff, an unnecessary
treatment load and potential site flooding condition, and removes it before entry
to the plant. It has the capacity to pump 11.5 MGD. Numerous other pumps and
mixers are located throughout the plant for process control.
The District contracted with USDA wildlife services for beaver removal near its
Chockoyotte Creek interceptor. Over the course of 2017, there were 10 beavers
removed along with 5 muskrats, 1 otter, and 12 manual dams. Further, during the
reporting period, RRSD, working with a local contractor, performed stream
restoration of Chockoyotte Creek; removing storm debris to restore flow to the
natural run of the creek. This work ensured access to the interceptor and helped
minimize flooding of manholes along the easement.
The performance of the system in 2017 was good. There were no permit violations or
monitoring and reporting violations. The District's Fat, Oil, and Grease (FOG)
Program performed 49 inspections of area restaurants and food preparation
facilities. There were no notices of violation, although seven notices to correct
were sent to food preparation facilities in 2017. All notices to correct were
addressed in a timely manner. Public education aspects of the program continued
as well. There were no Sanitary Sewer Overflows (SSO) attributed to FOG during
2017.
Secondary clarification removes solids from the activated solids process. Here,
solids in the presence of oxygen, pH control, and mixing, accumulate in excess.
They are removed, chemically stabilized, and added to a holding facility. All
stabilized solids are analyzed and land applied according to their nutrient value,
ceiling and accumulative requirements.
Over the course of 2017, the Roanoke River Wastewater Plant operated very
efficiently. There were no permit violations or monitoring and reporting
violations. The plant flows ranged from a daily maximum of 8.2 Million Gallons per
A. Permit limit violation
B. Monitoring and Reporting Violations
C. 2017 Sanitary Sewers Overflows (SSO)
2. WWTP: N/A
Page 4
Roanoke Rapids Sanitary District
2017 System Performance Annual Report
There was an estimated total of 6000 gallons spilled in SSO's in 2017. These spills
are the result of capacity exceedance due to wet weather conditions and
correlate to 1.54 spills per 100 miles of sewer main.
Day(MGD) to a minimum of 1.8 MGD. The average daily flow was 3.0 MGD. The
plant treated 1,082,420,000 gallons of wastewater throughout the year; which
was discharged to the Roanoke River. There was a yearly average CBOD of 4.9mg/L
which ranged from a max of 10.5mg/L to a min of 2.7mg/L with an average of
97.9% removal. There was a yearly average TSS of 14.6mg/L which ranged from a
max of 37.8mg/L to a min of 5.7mg/L with an average of 92.2% removal. The
annual geometric mean for fecal coliform was 10 colonies/lOOmL which ranged
from a max of 111 colonies/lOOmL to a min of 1 colony/lOOmL. The annual
average for Ammonia Nitrogen was <1.7mg/L which ranged from a max of 9mg/L
to a min of <0.5mg/L. The annual average for Total Nitrogen was <13.90mg/L with
a max of <17.60mg/L and a min of <9.28mg/L and the annual average for Total
Phosphorus was 1.28mg/L with a max of 2.20mg/L and a min of 0.56mg/L.
There are 1985.46 acres of applicable land currently permitted through the
District's Land Application Permit. During 2017 there were 2,714,848 gallons, or
536.62 dry tons of biosolids applied to 222.10 acres. There were no permit
violations for the land application program in 2017.
1. C.S.: None
2. WWTP: None
1. C.S.: None
2. WWTP: None
1. C.S.: There were 2 reportable SSO's in 2017.
1. 4/25/2017 Manhole 54 Basin A est. 5400 gals.
2. 9/6/2017 Manhole 419 at Smith Church Rd. est. 600 gals.
Bypass of Treatment FacilityD.
Description of any known environmental impact or violations.E.
Description of corrective measures taken to address violations or deficiencies.F.
Page 5
District employees cleaned 23.49 miles of sewer lines and CCTV'd all suspect
problem areas.
District employees utilized the District's new excavator mounted flail mower to
cut and clear 25,977 feet, or 4.92 miles, of interceptor rights-of-ways and cross­
country lines.
Roanoke Rapids Sanitary District
2017 System Performance Annual Report
1. C.S.: None
2. WWTP: None
The District has completed contracts with Step Construction to repair and replace
parts of Outfall G and Sub-basin E including 15,92 feet of pipeline rehabilitation
with associated service tap replacements and with Herrin-Rivenbark, Inc. to find
and fix l&l problems on Sub-basins C & D including 26,637 feet of pipeline
rehabilitation with associated service tap replacements, together encompassing
1. C.S.: N/A
2. WWTP: There were two bypasses at the Wastewater Treatment Plant in 2017.
1. The first was on 4/25/2017 and occurred at the Filter Effluent Pump Station.
An estimated bypass of 49,860 gallons reached the Roanoke River during high
flows attributed to heavy rains. One of the four pumps in the station was out for
rebuilding at the time which diminished the stations capacity. It has since been
reinstalled.
2. The second bypass occurred on 5/25/2017 at the Influent Pump Station. An
estimated 42,917 gallons reached the Roanoke River after two of the four pumps
in the station failed. One of the pumps was reset and resumed working that day,
the other pump had to have the motor and VFD replaced. All of the necessary
repairs have been made.
During these two events, 1,190,558 gallons of wastewater were equalized in the
WWTP's equalization tanks that would have otherwise bypassed into the river
with the reported bypasses.
1. C.S.: Along with the wildlife control, Creek Restoration measures, and outfall
clearing mentioned above, RRSD continues to perform preventative backup
maintenance by cleaning with Jetter and Root Cutter; which is attached to the
Jetter hose, followed by Closed Circuit TV (CCTV) camera to inspect the lines after
cleaning. The District also uses its Vac-con Truck, which cleans the line more
effectively and proves to be more reliable than the old unit.
III.
IV.
Date
Page 6
4
Roanoke Rapids Sanitary District
2017 System Performance Annual Report
2. WWTP: All repairs to minimize the Inflow & Infiltration due to heavy rains are
being made to correct known system deficiencies.
R. Danieley Brown, PE
Chief Executive Officer
the area from Marshall Street to Madison street, and from Julian Allsbrook Hwy.
to Kapstone Paper Mill.
RRSD contracted Layne Inliner for pipeline rehabilitation work to the lower
Roanoke Outfall and Area A including lining and Point Repair with old services
being replaced. 1,311 feet of 12-inch sewer line and 2,020 feet of 8-inch sewer
line have been lined and three (3) point repairs have been made at 407 Oakwood
Avenue, Jeffrey Circle, and Pinecrest Avenue at Bolling Road.
Ralph Hodge Construction replaced 3,239ft of 8-inch sewer line, 175ft of 10-inch
sewer line, and installed a new manhole on Julian Allsbrook Highway.
Notification:
This System Annual Performance Report will be available to customers via the
Roanoke Rapids Sanitary District's Webpage at www.rrsd.org .
Certification:
I certify, under penalty of law, that this document is complete and accurate to the
best of my knowledge. I further certify that this report has been made available to the
users of the named system and those users have been notified of its availability.
ROY COOPER
MICHAEL S. REGAN
LINDA CULPEPPER
February 5. 2018
Subject:
Dear Mr. Brown:
1.
2.
3.
4.The permit lists the following units:
R. Danieley Brown. CEO
Roanoke Rapids Sanitary District
PO Box 308
Roanoke Rapids, North Carolina 27870
Division of Water Resources, Raleigh Regional Office, Water Quality Operations Section
1628 Mail Service Center, Raleigh, NO 27699-1628
Location: 3800 Barrett Drive, Raleigh, NO 27609
The plant is classified as a WW-4 wastewater facility. Mr. Steven Ellis is designated as the
primary Operator in Responsible Charge (ORC), and is a WW-4. Mr. Timothy Skipper is
designated as the main backup Operator (bORC) and is also a WW-4. Daily operation log
books are detailed and are kept on-site going back at least three years.
• Automatic and manual bar screens
• Vortex Grit Removal
• Influent Pump Station - Four Pumps
• Two 375,000 Gallon Equalization Tanks (Formerly Clarifiers)
Water Resources
ENVIRONMENTAL QUALITY
The facility is currently permitted to discharge up to 8.34 MGD into Roanoke River, a class-C
water in the Roanoke River Basin. The facility’s monthly average flow for the 2017 calendar
year was approximately 3.0 MGD. The current pennit expired on March 31, 2017. A renewal
application was received in September 2016.
Compliance Evaluation Inspection
Roanoke River Waste Treatment Plant
NPDES Permit No. NC0024201
Halifax County
www.ncwaterquality.org
Phone: [phone]
Fax: [phone]
On January 23. 2018. Jason Robinson of the Raleigh Regional Office (RRO) conducted a compliance
evaluation inspection of the subject facility. The assistance provided by Mr. Steven Ellis. Operator in
Responsible Charge (ORC) and Isabelle Field-Wilcoxon. Lab Supervisor was appreciated. The
inspection report is attached. The following observations were made:
The laboratory was inspected in a cursory manner. The facility analyzes BOD, COD. TSS,
Fecal Coliform ammonia nitrogen and total phosphorus, and is field certified for TRC, pH,
Temperature and DO (Certification #70). Log books were kept and showed that incubators are
kept at acceptable temperatures. pH buffers were within dates. Calibration logs were present.
All other parameters are analyzed by Mcritech, Inc. Lab results, chain-of-custody forms, and
DMRs were complete and organized. September DMR data was compared to lab bench
sheets; no data transcription errors were noted. Samples were observed to be kept at proper
temperature.
1
Cc: Central Files w/attachment
Raleigh Regional Office w/attachment
5. The right ot way to the outfall was properly maintained. The effluent appeared clear and free
of solids, d here were no visible detrimental impacts to the receiving stream.
Danny Smith
Regional Supervisor
Raleigh Regional Office
I his facility was found to be compliant with NPDES permit conditions as a result of this inspection,
fhe plant is well maintained and documentation was found to be detailed, organized, and complete. If
you have any questions regarding the attached reports or any of the findings, please contact Jason
Robinson at: [phone] (or email: Jason.t.robinson(ancdenr.gov).
• Manual Acid feed system (not used)
• Two Primary Clarifiers (Typically only one is in operation)
• Two Trickling Filters (Both were operating)
• Three 2.000.000 Gallon Rectangular Secondary Clarifiers w/ Traveling Bridge
(Typically two are in operation)
• I hree 500,000 aeration basins (Typically two are in operation)
• Two Chlorine Contact Chambers (Typically onw is in operation)
• Two RAS Pump Stations
• Three anaerobic digesters with heat exchangers
• One WAS Pump Station
• Two Gravity Settling Tanks with Gravity Belt Thickener
• 1.000,000 Gallons Solids Storage tank
• Effluent Pump Station
• Fourteen Sludge Drying Beds
• On-Site Generator
Attachments
Compliance Inspection Report
Sincerely,
»
EPA
tection A National Data System Coding (i.e., PCS)
Inspection TypeNPDESyr/mo/day Inspector Fac Type
2 J11NC0024201 18/01/23
21 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 I f5116
B1 QA •Reserved-
I 72 |8073
Section B Facility Data
Entry Time/Date Permit Effective Date
13/04/0101:00PM 18/01/23
Roanoke River WWTP
Exit Time/Date Permit Expiration Date135 Aqueduct Rd
18/01/2303 00PM 17/03/31W'eldon 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
ContactedGregg Camp.PO Box 308 Roanoke Rapids NC 27870//252-536-4884
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///
1Page#
J17
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES oermit Number)
B Permit B Flow Measurement Operations & Maintenance B Records/Reports
Sludge Handling Disposal S Effluent/Receiving Waters B Laboratory
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
///
Steven Lee Ellis/ORC/252-536-4884/
United States Environmental Protection Agency
Washington D.C 20460
Water Compliance Inspection Report
N
N
Insoection Work Days
67!
Transaction Code
1
Facility Self-Monitoring Evaluation Rating
70 u
Jason T Robinsgm t
Signature of Management'O A Reviewer / / Agency/Office/Phone and Fax Numbers
EPA Form 356(^3 (Rev 9-94) Previous editions are obsolete.
Date
20 LI3112118L119 LJ
»
1NPDESyr/mo/day (Cont.)
31 NC0024201 18/01/23
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
The permit lists the following units:4.
2Page#
J11 12l
Automatic and manual bar screens
Vortex Grit Removal
Influent Pump Station Four Pumps
Two 375,000 Gallon Equalization Tanks (Formerly Clarifiers)
Manual Acid feed system (not used)
Two Primary Clarifiers (Typically only one is in operation)
Two Trickling Filters (Both were operating)
Three 2,000,000 Gallon Rectangular Secondary Clarifiers w/ Traveling Bridge (Typically two are in
operation)
Three 500.000 aeration basins (Typically two are in operation)
Two Chlorine Contact Chambers (Typically onw is in operation)
Two RAS Pump Stations
Three anaerobic digesters with heat exchangers
One WAS Pump Station
Two Gravity Settling Tanks with Gravity Belt Thickener
1.000,000 Gallons Solids Storage tank
Effluent Pump Station
Fourteen Sludge Drying Beds
On-Site Generator
5. The right of way to the outfall was properly maintained. The effluent appeared clear and free of
solids. There were no visible detrimental impacts to the receiving stream.
This facility was found to be compliant with NPDES permit conditions as a result of the inspection. The
plant is well maintained and documentation was found to be detailed, organized, and complete.
Inspection Type
18 [c]
3. The laboratory was inspected in a cursory manner. The facility analyzes BOD, COD TSS. Fecal
Coliform ammonia nitrogen and total phosphorus and is field certified for TRC. pH, Temperature and
DO (Certification #70). Log books were kept and showed that incubators are kept at acceptable
temperatures. pH buffers were within dates. Calibration logs were present. All other parameters are
analyzed by Meritech. Inc. Lab results, chain-of-custody forms, and DMRs were complete and
organized. September DMR data was compared to lab bench sheets, no data transcription errors
were noted. Samples were observed to be kept at proper temperature.
1. The facility is currently permitted to discharge up to 8.34 MGD into Roanoke River, a class-C water
in the Roanoke River Basin. The facilitys monthly average flow for the 2017 calendar year was
approximately 3.0 MGD. The current permit expired on March 31,2017. A renewal application was
received in September 2016.
2. The plant is classified as a WW-4 wastewater facility. Mr. Steven Ellis is designated as the primary
Operator in Responsible Charge (ORC), and is a WW-4. Mr. Timothy Skipper is designated as the
main backup Operator (bORC) and is also a WW-4. Daily operation log books are detailed and are
kept on-site going back at least three years.
J17
»
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:
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping?
Comment:
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:
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?
a Are all records maintained for 3 years (lab. reg. required 5 years)?
s 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
3Page#
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
Celsius)?
Does the facility analyze process control parameters, for ex: MLSS, MCRT. Settleable
Solids pH. DO. Sludge Judge, and other that are applicable?
(If the present permit expires in 6 months or less). Has the permittee submitted a new
application?
Roanoke River WyVYR
Compliance Evaluation
■
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■
■
■
■
Bonn
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■
B
B
®
H
fl

Permit: NC0024201
Inspection Date: 01/23/2013
Owner - Facility:
Inspection Type:
Permit expired on March 31. 2017.
Renweal application received in September 2016
Permit has not been issued yet.
Facilitly anaylizes BOD, COD , TSS, Fecal Coliform, Ammonia Nitrogen, Total Phosporus
Field certifed for TRC, pH. Temperature and DO,
Merntech is contract lab.
I
Yes No NA NERecord Keeping
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 classification1?
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:
Yes No NA NEAeration Basins
Ext. AirMode of operation
DiffusedType of aeration system
■ 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?
Is the DO level acceptable?
■Is the DO level acceptable?(1.0 to 3.0 mg/l)
Comment:
Yes No NA NEBar Screens
Type of bar screen
a.Manual
Hb.Mechanical
Are the bars adequately screening debris?
■ Is the screen free of excessive debris?
4Page#
Owner - Facility:
Inspection Type:
(If the facility is = or > 5 MOD permitted flow) Do they operate 24/7 with a certified operator
on each shift?
Roanoke River W/VTP
Compliance Evaluation
■
■
■
■
■
■
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Permit: NC0024201
Inspection Date: 01/23/2018
■
■
■
Roanoke River VWVTP
Compliance Evaluation
Bar Screens Yes No NA NE
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?■
Comment:
Pump Station - Influent Yes No NA NE
Is the pump wet well free of bypass lines or structures?B
Is the wet well free of excessive grease7 B
Are all pumps present?B
Are all pumps operable?®
Are float controls operable?H
Is SCADA telemetry available and operational?B
Is audible and visual alarm available and operational7 B
Comment:
Equalization Basins Yes No NA NE
Is the basin aerated?
Is the basin free of bypass lines or structures to the natural environment?H
Is the basin free of excessive grease? E
Are all pumps present? B
Are all pumps operable? H
Are float controls operable? ®
Are audible and visual alarms operable?
# Is basin size/volume adequate? E
Comment:
5Page#
Permit: NC0024201
Inspection Date: 01/23/2018
Owner - Facility:
Inspection Type:
Roanoke River WATP
Compliance tvaluation
Primary Clarifier Yes No NA NE
■ Is the clarifier free of black and odorous wastewater?
■ Is the site free of excessive buildup of solids in center well of circular clarifier?
■ Are weirs level?
Is the site free of weir blockage’’
Is the site free of evidence of short-circuiting’’
■ Is scum removal adequate?
Is the site free of excessive floating sludge?
■ Is the drive unit operational?
■ Is the sludge blanket level acceptable’’
■ Is the sludge blanket level acceptable7 (Approximately 'Z of the sidewall depth)
Comment:
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 level7
■ Is the site free of weir blockage?
■ Is the site free of evidence of short-circuiting?
■ Is scum removal adequate?
Bl Is the site free of excessive floating sludge?
■ D QIs the drive unit operational7
® Is the return rate acceptable (low turbulence)?
H Is the overflow clear of excessive solids/pin floc?
a Is the sludge blanket level acceptable? (Approximately Vi of the sidewall depth)
Comment:
Trickling Filter Yes No NA NE
® Is the filter free of ponding?
a Is the filter free of leaks at the center column of filter's distribution arms?
B Is the distribution of flow even from the distribution arms?
Is the filter free of uneven or discolored growth?
13 Is the filter free of sloughing of excessive growth?
B Are the filter's distribution arms orifices free of clogging?
6Page#
Owner - Facility:
Inspection Type:
Permit: NC0024201
Inspection Date: 01/23-2018
!
Roanoke River W/VTR
Trickling Filter Yes No NA NE
Is the filter free of excessive filter flies, worms or snails?■
Comment:
Chemical Feed Yes No NA NE
Is containment adequate’’■
Is storage adequate?■
Are backup pumps available?■
Is the site free of excessive leaking?a
Comment:
Solids Handling Equipment Yes No NA NE
Is the equipment operational?a
Is the chemical feed equipment operational?a
Is storage adequate?a
Is the site free of high level of solids in filtrate from filter presses or vacuum filters'’a
Is the site free of sludge buildup on belts and/or rollers of filter press?a
Is the site free of excessive moisture in belt filter press sludge cake?a
The facility has an approved sludge management plan?s
Comment.
Drying Beds Yes No NA NE
Is there adequate drying bed space?E
Is the sludge distribution on drying beds appropriate'’a
Are the drying beds free of vegetation?H
# Is the site free of dry sludge remaining in beds?
Is the site free of stockpiled sludge?a
Is the filtrate from sludge drying beds returned to the front of the plant?H
# Is the sludge disposed of through county landfill?a
# Is the sludge land applied?a
(Vacuum filters) Is polymer mixing adequate?
Comment:
Standby Power Yes No NA NE
7Page#
Owner - Facility:
Inspection Type: Compliance Evaluation
Permit: NC0024201
Inspection Date: 01/23/2018
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Roanoke River WWTP
Compliance Evaluation
Yes No NA NEStandby Power
■ Is automatically activated standby power available9
■ Is the generator tested by interrupting primary power source?
■ Is the generator tested under load9
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:
Pumps-RAS-WAS Yes No NA NE
■ Are pumps in place?
« Are pumps operational?
s Are there adequate spare parts and supplies on site?
Comment:
Disinfection-Liquid Yes No NA NE
■ Is there adequate reserve supply of disinfectant?
s (Sodium Hypochlorite) Is pump feed system operational9
■ Is bulk storage tank containment area adequate9 (free of leaks/open drains)
■Is the level of chlorine residual acceptable9
■ Is the contact chamber free of growth, or sludge buildup?
■ Is there chlorine residual prior to de-chlorination9
Comment:
De-chlorination Yes No NA NE
LiquidType of system ?
■Is the feed ratio proportional to chlorine amount (1 to I)9
■ Is storage appropriate for cylinders?
H # Is de-chlorination substance stored away from chlorine containers?
Comment:
Are the tablets the proper size and type?
Are tablet de-chlorinators operational?
Number of tubes in use?
8Page#
Owner - Facility:
Inspection Type:
Permit: NC0024201
Inspection Date: 01.23/2013
I
Roanoke River WWTPPermit: NC0024201
Inspection Date: 01.23/2018
De-chlorination Yes No NA NE
Comment:
Flow Measurement - Effluent Yes No NA NE
■ # Is flow meter used for reporting?
B Is flow meter calibrated annually?
a Is the flow meter operational?
B (If units are separated) Does the chart recorder match the flow meter'?’
Comment:
Effluent Pipe Yes No NA NE
B Is right of way to the outfall properly maintained?
a Are the receiving water free of foam other than trace amounts and other debris?
B If effluent (diffuser pipes are required) are they operating properly?
Comment:
9Page#
Owner - Facility:
Inspection Type: Compliance Evaluation