NC0062855_WWTP Inspection_20140818

NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory John E. Skvarla,,III
Governor Secretary
August 18, 2014
Jeffery A. Sheffield
P. O. Box 296
Robbins, NC 27325
SUBJECT: July 22, 2014 Compliance Evaluation Inspection
Town of Robbins
Robbins WWTP
Permit No: NC0062855
Moore County
Dear Mr. Sheffield:
Enclosed please find a copy of the Compliance Evaluation Inspection form from the inspection conducted on
July 22, 2014. The Compliance Evaluation Inspection was conducted by Mark Brantley, Environmental Senior
Specialist, of the Fayetteville Regional Office. The cooperation of Mr. Tommy Overbee, facility ORC, was greatly
appreciated. The facility was found to be in Compliance with permit NC0062855. As a reminder, preservation of
the Waters of the State can only be achieved through consistent NPDES Permit compliance.
Comments/Concerns
• During the walk through portion of the inspection several two issues concerning trees were noted:
1. There is a tall dead pine tree next to the WWTP's administration building. If this tree was to fall it has
the potential to damage the building itself, the blower units for the aeration basins, or the chemical
storage area where caustic, ferrous aluminum sulfate, chlorine gas, and dechlor chemicals are stored. If
the tree was to fall on thechemical area not only would the area be damaged but public health may be
put at risk. Damage to the blower units could result in expensive and major repairs.
2. The trees along the fence line are hanging over several treatment units such as a portion of treatment
train number 2 and several splitter. boxes. Leaves and pine straw from these trees are falling into these
treatment units. Over time the buildup of this debris can clog pipes causing a by-pass of treatment
units resulting in notices of violation. Decaying matter can also reduce the efficiency of the treatment
plant itself which could cause NPDES permit violations. These violations could cause enforcement
actions to be taken by the division. If the trees are left alone and allowed to grow then the potential of
damage to the treatment structure itself increases by a falling tree or limb.
The Division of Water Resources strongly encourages the town to contact a tree removal expert about
these issues.
• Facility is currently using liquid bleach and liquid dechlor because the water reuse system that provides the
carrier water to the gas regulators does not work due to the leaves and pine straw that was mentioned
above.
Fayetteville Regional Office
225 Green Street, Suite 714, Fayetteville, North Carolina 28301-5095
Main Phone: [phone] Internet: http://www.ncdenr.gov
An Equal Opportunity 1Affirmative Action Employer— Made in part by Recycled Paper

Mr. Sheffield
Page 2
August 15, 2014
• The grit removal system is currently offline due to the high cost to rehab the system. The introduction of
sand and grit into the waste treatment system can cause unnecessary wear and tear on pumps which can
cause costly repairs. If enough grit and sand is allowed to enter the system then the amount of available
treatment volume can be reduced.
• The decanting valves on the little digester are becoming difficult to operate. Please repair or replace these
valves as necessary.
e The aeration system for the large digester has been out of service for some time. This issue has been
mentioned in previous inspection letters dated May 25, 2012 and January 7, 2013. Currently the little
digester is capable of handling the WWTP sludge, however if a problem occurred with this treatment unit
or if the area experienced a rainy season the town would have problems managing its sludge inventory.
© There are 4 blower units for treatment train 1 and treatment train 2. At the time of the inspection only 2 of
the blowers were operational with a third one currently being repaired. The fourth blower has been out of
service for an extended period of time.
• Please complete and submit the enclosed change of ownership form so the Division of Water Resources
Records will updated. Currently Rodney Kiser is listed as the permit owner.
Please respond in writing to the above stated comments/concerns by September 15, 2014 with a plan of action
detailing how the town will address these items.
Please refer to the enclosed inspection report for additional observations and comments. If you or your staff have
any questions, please call me at910-433-3327.
Sincerely,
Mark Brantley
Environmental Senior Specialist
Division of Water Resources
NCDENR
cc: Tommy F Gibbons, ORC
Central Files
`; Fayeille s'
Enclosures: US EPA Water Compliance Inspection Report
Change of Ownership Form

United States Environmental Protection Agency
EPA Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection
1 [ I 2 [ I 3 I NC0062855 Iii 12I 14/07/22 . 117
Type
18I2I
I I I I I
Inspector Fac Type
19I Li 201
211 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 IIII
I I r6
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA
671 I 701, LJ I . 71 IN I 72 I n, LJ I
Reserved
731I 174 75I I I I I I I 18°
l
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Robbins WWTP
Sewer Plant Rd
Robbins NC 27325
Entry Time/Date
10:15AM 14/07/22
Permit Effective Date
13/04/01
Exit Time/Date
12:30PM 14/07/22
Permit Expiration Date
16/03/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
/// . .
Tommy F Gibbons/ORC/910-948-3063/
Other. Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Rodney L Kiser, //910-948-3063/
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated) -
Permit • Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program • Sludge Handling Disposal . Facility Site Review
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
Mark Brantley FRO WQ//910-433-3300 Ext.727/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
Belinda S Henson F®tOa/910-4 300 Ext.72E g _ f 7 - `I
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page# 1

31
NPDES yr/mo/day
NC0062855 in121 14/07/22
17
Inspection Type
18 [ ]
(Cont.)
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Comments/Concerns
During the walk through portion of the inspection several two issues concerning trees were noted:
1. There is a tall dead pine tree next to the WVVTP's administration building. If this tree was to fall it
has the potential to damage the building itself, the blower units for the aeration basins, or the chemical
storage area where caustic, ferrous aluminum sulfate, chlorine gas, and dechlor chemicals are stored.
If the tree was to fall on the chemical area not only would the area be damaged but public health may
be put at risk. Damage to the blower units could result in expensive and major repairs.
2. The trees along the fence line are hanging over several treatment units such as a portion of
treatment train number 2 and several splitter boxes: Leaves and pine straw from these trees are falling
into these treatment units. Over time the buildup of this debris can clog pipes causing a by-pass of
treatment units resulting in notices of violation. Decaying matter can also reduce the efficiency of the
treatment plant itself which could cause NPDES permit violations. These violations could cause
enforcement actions to be taken by the division. If the trees are left alone and allowed to grow then the
potential of damage to the treatment structure itself increases by a falling tree or limb.
The Division of Water Resources strongly encourages the town to contact a tree removal expert about
these issues.
Facility is currently using liquid bleach and liquid dechlor because the water reuse system that provides
the carrier water to the gas regulators does not work due to the leaves and pine straw that was
mentioned above.
The grit removal system is currently offline due to the high cost to rehab the system. The introduction
of sand and grit into the waste treatment system can cause unnecessary wear and tear on pumps
which can cause costly repairs. If enough grit and sand is allowed to enter the system then the
amount of available treatment volume can be reduced.
The decanting valves on the little digester are becoming difficult to operate. Please repair or replace
these valves as necessary.
The aeration system for the large digester has been out of service for some time. This issue has been
mentioned in previous inspection letters dated May 25, 2012 and January 7, 2013. Currently the little
digester is capable of handling the WVVTP sludge, however if a problem occurred with this treatment
unit or if the area experienced a rainy season the town would have problems managing its sludge
inventory.
There are 4 blower units for treatment train 1 and treatment train 2. At the time of the inspection only 2
of the blowers were operational with a third one currently being repaired. The fourth blower has been
out of service for an extended period of time.
Please complete and submit the enclosed change of ownership form so the Division of Water
Resources Records will updated. Currently Rodney Kiser is listed as the permit owner.
Please respond in writing to the above stated comments/concerns by September 15, 2014 with a plan
of action detailing how the town will address these items.
Page# 2

Permit: NC0062855
Owner - Facility: Robbins WVVTP
Inspection Date: 07/22/2014 Inspection Type: Compliance Evaluation
Operations & Maintenance
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?
Comment:
Permit
(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 conditionsfor 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
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?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
on each shift?
Is the ORC visitation log available and current?
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?
Yes No NA NE
II ❑ '❑ ❑
MI ❑ ❑ ❑
Yes No NA NE
MOOD
• ❑ ❑ ❑
❑ ❑ II ❑
MO ❑ ❑
IN ❑ ❑ ❑
Yes No NA NE
"DOD
• ❑ ❑ ❑
• .❑ ❑ ❑
11 ❑ ❑ ❑
• ❑ ❑ ❑
•
11000
MI ❑ '❑ ❑
II ❑ ❑ ❑
• ❑ ❑ ❑
Page# 3

Permit: NC0062655
Inspection Date: 07/22/2014
owner - Facility: Robbins \MNTP
Inspection Type: Compliance Evaluation
Record Keeping
Facility has copy of previous year's Annual Report on file for review?
Comment:
Flow 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: Flow meter was last calibrated on 10-23-2013.
Yes No NA NE
❑ ❑ ❑ •
Yes No NA NE
111 El El El
11 ❑ ❑ ❑
11 ❑ ❑ ❑
❑ ❑ • 0
Aerobic Digester Yes No NA NE
Is the capacity adequate? 11 ❑ 0 ❑
Is the mixing adequate? ❑ ❑ ❑ •
Is the site free of excessive foaming in the tank? ® ❑ 0 ❑
# Is the odor acceptable? II ❑ 0 ❑
# Is tankage available for properly waste sludge? • ❑ ❑ ❑
Comment:
Pump Station - Effluent Yes No NA NE
Is the pump wet well free of bypass lines or structures? • 0 0 0
Are all pumps present? 0 0 ❑
Are all pumps operable? II ❑ ❑ ❑
Are float controls operable? ® ❑ ❑ ❑
Is SCADA telemetry available and operational? 0 0 ❑ •
Is audible and visual alarm available and operational? 0 ❑ ❑ •
Comment:
Pump Station - Influent
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?
Yes No NA NE
11 ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• .❑ 0 ❑
11 ❑ ❑ ❑
Page# 4

Permit: NC0062855 Owner - Facility: Robbins VNNTP
Inspection Date: 07122/2014 Inspection Type: Compliance Evaluation
Pump Station - Influent Yes No NA NE
Is SCADA telemetry available and operational? ❑ ❑ ❑ ■
Is audible and visual alarm available and operational? ❑ ❑ ❑ 0.
Comment:
Bar Screens
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:
Secondary Clarifier
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)
Comment:
Yes No NA NE
Yes No NA NE
• ❑ ❑ ❑
loon
• ❑ ❑ ❑
11000
• ❑ ❑ ❑
boo'
loon
II ❑ ❑ ❑
11 ❑ ❑ ❑
loon
• ❑ ❑ ❑
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? ❑ ❑ • ,❑
Page# 5

Permit: NC0062855 Owner - Facility: Robbins VVVVfP
Inspection Date: 07/22/2014 Inspection Type: Compliance Evaluation
Aeration Basins
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/I)
Comment:
De -chlorination
Type 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?
Comment:
Are the tablets the proper size and type?
Are tablet de -chlorinators operational?
Number of tubes in use?
Comment:
Standby Power
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:
Disinfection -Liquid
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?
Yes No NA NE
▪ ❑ ❑ ❑
II ❑ ❑ ❑
El El
❑ ❑ ❑
Yes No NA NE
Liquid
® ❑ ❑ ❑
❑ ❑ ® ❑
1111 El El El
El El 1111 El
❑ ❑ • ❑
Yes No NA NE
® ❑ ❑ ❑
▪ ❑ ❑ ❑
• ❑ ❑ ❑
❑ ❑ ❑ MI
• ❑ ❑ ❑
❑ ❑ ❑ •
• ❑ ❑ ❑
Yes No NA NE
MO DO
• ❑ ❑ ❑
IN ❑ ❑ ❑
• ❑ ❑ ❑
Page# 6

Permit: NC0062855 Owner - Facility: Robbins VVVVfP
Inspection Date: 07/22/2014 Inspection Type: Compliance Evaluation
Disinfection -Liquid
Is the contact chamber free of growth, or sludge buildup?
Is there chlorine residual prior to de -chlorination?
Comment:
Yes No NA NE
❑ ❑ ❑II
Influent Sampling Yes No NA NE
# Is composite sampling flow proportional? ❑ ❑ ® ❑
Is sample collected above side streams? ® ❑ ❑ ❑
Is proper volume collected? ® 0 0 ❑
Is the tubing clean? ® ❑ ❑ ❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 0 0
Celsius)?
Is sampling performed according to the permit? 11 ❑ ❑ 0
Comment:
Effluent Sampling
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
Is the tubing clean?
# 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)?
Comment:
Upstream / Downstream Sampling
Is the facility sampling performed as required by the permit (frequency, sampling type, and
sampling location)?
Comment:
Yes No NA NE
❑ ❑ ❑
MI ❑ ❑ ❑
11 ❑ ❑ ❑
• ❑ ❑ ❑
11 ❑ ❑ ❑
Yes No NA NE
11 ❑ ❑ ❑
Page# 7