NC0026824_Other_20091231

South Granville Water and Sewer Authority
March 13, 2009
Dear Mr. Smith:
Dave Currin
Tim Karan
Tom Lane
Second - to evaluate the existing plant and recommend extended
repairs and modifications to allow the plant to maintain compliance
with its current NPDES limits through the permitted flow of 5.5 MGD;
Jimmy
Minor
Edgar
Smoak
Ron
Alligood,
Chairman
Jack L.
Day, Vice
Chairman
Board
Members
The contract to start this study was signed on January 20, 2009. A
preliminary time table has the final report for the long range components
scheduled to be available the first of September, 2009. The immediate
recommendations are being acted upon as soon as particle.
First - to evaluate and study the existing operations and facilities and
make recommendations to gain compliance with the current flow and
NPDES limits;
Terry
Bullock,
Clerk
Staff
Members
Lindsay L.
Mize,
Director
Mr. Danny Smith
Regional Supervisor
Raleigh Regional Office
NC DENR-DWQ
1628 Mail Service Center
Raleigh, NC 27699-1628
211 West C Street, Butner, NC 27509
[phone] FAX [phone]
www.sgwasa.org
MAR I 6 2009
And Third - to lay out a plan to expand the hydraulic flow of the plant
while focusing on the Falls Lake Nutrient Strategy and the overall goal
of obtaining zero discharge of nutrients within the limits of current
technologies.
The South Granville Water and Sewer Authority has contracted with CDM to
conduct a Wastewater Treatment Capacity Study of its SGWASA Waste
Water Treatment Plant located in Butner, North Carolina. The scope of this
study is three fold:
Sincerely,
t
C:
We will gladly adjust to your availability, but to start the process we had
thought of the following dates:
Thursday, March 26, 2009
Friday, March 27, 2009
Monday, March 30, 2009
Tuesday, March 31, 2009
Lindsay L. Mize
Executive Director
I would like to ask for about an hour of your time and any of your staff that
you would like to attend such a meeting. I would like to come to your office
with the engineering team from CDM to outline SGWASA's plan
development and to get any insight you could or would offer.
SGWASA Board Members
Fred Dancy, SGWASA Utility Director
Brenan Buckley, P.E., CDM
James Butcher, P.E., CDM
Please let me know if you could consider meeting with us and if any of these
dates or other dates are acceptable. Please contact me at [phone]
or [e-mail] .
Mr. Danny SmiU^
March 13, 20(W
Page 2 of 2
April 8, 2009
Subject:
Dear Mr Mize, Director Executive:
monitoring report for
Date
Antimony, Total (as Sb)11/15/08
Reported Value Limit Type
16 ug/1
cc: Central Files
RRQSWP files
Beverly Eaves Perdue
Governor Dee Freeman
Secretary
NOTICE OF VIOLATION
Permit No. NC0026824
SGWASA WWTP
Case No. NOV-2009-LV-0158
Granville County
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
70081300000011333512
Limit Value
14.1 ug/1 Weekly Average
Exceeded
Remedial actions should be taken to correct this problem. It is the duty of evety permitted
aci ity to meet permit limits. We urge you to avoid future occurrences. By doing so, you will
riXslid1 streams110" 51316 regarding the Problems this month while protecting our lakes,
North CarolinaNaturally
If you have any questions regarding this notice, please contact Cheng Zhang at 919-791-4200.
MAIL
Lindsay L Mize, Director Executive
South Granville Water & Sewer Authority
211 WCSt
Butner NC 27509
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins ;
Director
The Division of Water Quality has reviewed SGWASA WWTP's
November 2008 and we noted the fol owing violation(s) had been reported:
Parameter
Sincerely,
S. Daniel Smith
Surface Water Protection Supervisor
Raleigh Regional Office
TNn™ ar0'ina DiViSiOn Of.Water QUality 1628 Mail SerVice Center Ra,ei^ NC 27699-1628 Phone [phone] Customer Serv.ee
Internet, www.ncwaterquahty.org Location: 3800 Barrett Drive Raleigh, NC 27609 Fax [phone]S l^Zza^l
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South Granville WASA WWTP Nutrient Study CDM
Nitrogen Compounds SGWASA Analyzed
Flow BOD COD NO3Sample Stream TN TKN NH3 TP Acetate TSS VSS pH Temp DO ALK
d d d d d d e(gff)d d d d d*
d d d d e(gff)tw tw d d d d d d d*dw
tw(gff) tw(gff)tw(gff)tw tw tw tw tw tw
tw(gff) tw(gff)tw tw tw(gff)tw tw tw tw
tw(gff)tw(gff) tw(gff)tw(gff)tw tw tw tw tw tw
d d d dd d
w w
d
ddtw
w(gff)w w w
w w w
d d d(gff)d(gff)d
e e e e e
SGWASA nutrient sampling matrix 020609 v3.xlsx\S&A Matrix 4/16/2009
w = weekly or by permit
d = daily (5 days per week)
d" = daily grab from Composite INF and INT Sampler jug.
tw = twice weekly grab sample
e = single sample event to be determined by CDM during 6 week sample period
w(gff & un) = two tests of a filtered and unfiltered sample
gff = glass fiber filtered
un = unfiltered
ff = flocculated & 45 urn membrane filtered
Est = estimated flow
DOB = depth of blanket using sludge judge (minimum 3x daily)
Comp = 24 hour composite sampler, flow based
Comp" = 24 hour composite sampler, timer based
Grab = grab sample on a consistent time-of-day basis. Mondays and Wednesdays at -1:00 PM
DO = Dissolved Oxygen on a consistent time-of-day (-1:00 PM) and point-of-sample basis
Yes
Est
Yes
No
No
No
No
No
Est
No
No
No
No
No
Est
Yes
Yes
Est
Est
Est
Est
Est
d
d
w
w
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
Raw Influent
Grease Tank Effluent
Intermediate Pump Station
Basin 1 Anaerobic in
Basin 1 Anaerobic out
Basin 2 Anoxic in
Basin 2 Anoxic out
Basin 3 Anoxic in
Basin 3 Anoxic Recycle
Ox Cell 1
Ox Cell 2
Ox Cell 3
Ox Cell 4
Ox Basin Effluent
Return Activated Sludge
Waste Activated Sludge
Final Clarifiers
Final Effluent
Backwash Holding Decant
1st Stage Digester Decant
1st Stage Digester Sludge
2nd Stage Digester Decant
2nd Stage Digester Sludge
w
w
w
w
w
d
tw
w
d(gff)
w
d(gff)
e
d(gff)
w
w
d
e
Sample
Type
Comp
Grab
Comp*
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
DOB
Comp
Grab
Grab
Grab
Grab
Grab
Phosphorus
Ortho
P
d
BOD
(gff)
tw
COD
(gff)
tw
COD
(ff)
w
Sample
Point
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
w
w(gff & un) w(gff)
w(gff)
w(gff)
d(gff) d(gff)
w w
w w(gff & un) w(gff) w(gff)
w(gff)
w(gff)
SGWASA Weekly Sampling Schedule Week Ending: //
Monday Tuesday Wednesday Thursday Friday
Initials |Reading Initials Reading Initials Reading ReadingInitials Reading Initials
Record flow (MGD)
Measure pH
Measure temp (°C)
Measure DO (mg/L)
Estimate flow (MGD)
Measure DO (mg/L)
Record flow (MGD)
Measure pH
Measure temp (deg C)
Measure DO (mg/L)
-■
Collect grab sample at 1:00 pm
Measure pH
JMeasure temp (deg C)
Measure DO (mg/L)
Measure pH
Collect grab sample at 1:00 pm
Measure pH
1zMeasure temp (deg C)
Measure DO (mg/L)
I zExtract and measure alkalinity
(mg/L CaCO3)
Measure DO (mg/L)
E • Basin 1 Anaerobic out
Measure DO (mg/L)
Ig • Basin 2 Anoxic out
Extract and measure alkalinity from
composite sample (mg/L CaCO3)
In
Extract and measure alkalinity
(mg/L CaCO3)
F - Basin 2 Anoxic In
Sample Day
Sample Date
Sample Location and Activity
IA - Raw Influent
Collect flow based composite
sample
C - Intermediate Pump Station
Collect timer based composite
sample
Extract and measure alkalinity from
composite sample (mg/L CaCO3)
B - Grease Tank Effluent
4
SGWASA Weekly Sampling Schedule Week Ending: //
TuesdayMonday Wednesday Thursday Friday
Initials!ReadingReadingInitials Initials Reading Reading Initials Reading Initials
Measure pH
Measure DO (mg/L)
Collect grab sample at 1:00 pm
Estimate flow (MOD)
Measure pH
Measure temp (deg C)
Measure DO (mg/L)
Measure DO (mg/L)
L - Ox Cell 3
Measure DO (mg/L)
4
Measure DO (mg/L)
Collect grab sample at 1:00 pm
Measure pH
Measure temp (deg C)
Measure DO (mg/L)
Collect grab sample at 1:00 pm
Estimate flow (MOD)
Collect grab sample
Measure DO (mg/L)
□EZ
lit!-.1! ll(Ff
Measure depth of blanket
(Minimum of 3 times daily)
Extract and measure alkalinity
from grab sample (mg/L CaCO3)
'O - Return Activated Sludge
Measure DO (mg/L)
P - Waste Activated Sludge
Measure DO (mg/L)
K-OxCeiiz - -
Sample Day
Sample Date
Sample Location and Activity
3 Anoxic In
Extract and measure alkalinity
(mg/L CaCO3)
J - Ox Call 1
Record flow (MOD)
Q-Final Clarifiers
SGWASA Weekly Sampling Schedule Week Ending: /I
Monday WednesdayTuesday Thursday Friday
Res ReadingReadingInitialsReadingInitials Initials Reading Initials
ICollect grab sample at 1 00 pm
Estimate flow (MGD)
Measure pH
Measure pH Daily by event
ITSampling to be determined
BHnsssisi
EK
□E3
Collect grab sample at 1:00 pm
Specific day determined by event
Estimate flow (MGD). Specific day
determined by event.
Measure pH Specific day
determined by event.
Extract and measure alkalinity from
grab sample (mg/L CaCO3).
Specific day determined by event
Collect grab sample at 1:00 pm
Specific day determined by event
Estimate flow (MGD) Specific day
determined by event.
Measure pH Specific day
determined by event.
Measure temp (deg C) Specific
day determined by event
Measure DO (mg/L). Specific day
determined by event.
Collect grab sample at 1:00 pm
Daily by event.
Estimate flow (MGD) Daily by
event
Extract and measure alkalinity from
grab sample (mg/L CaCO3). Daily
by event.
- 2nd Stage Digester Sludge
Sample Day
Sample Date
Sample Location and Activity
R - Final Effluent_____________
Collect flow based composite
sample
Record flow (MGD)
S - Backwash Holding Decant
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South Granville Water and Sewer Authority
May 12, 2009
Subject:
Dave Currin
Tim Karan
Tom Lane
Dear Mr. Smith:
Est. 2005
Jimmy
Minor
Edgar
Smoak
Ron
Alligood,
Chairman
Jack Day,
Vice
Chairman
Board
Members
Initially a complete review of all existing plant operational data, plant DMR
compliance data, Long Term Monitoring data and SIU data was preformed.
This data review did not result in the identification of the source of these
violations. The one industry with antimony limits in their permit was not in
violation during these time periods. The influent antimony level at the plant
was only above the expected level one time during these violations and
SGWASA was not successful in identifying the source of the elevated level.
Increased monitoring within the plant indicated that with the new NPDES
permit antimony limit of 6 ug/l effective December 1, 2008 reduced from
14.1 ug/l, could cause the side stream levels to present a problem for
compliance.
Terry M.
Bullock,
Clerk
Staff
Members
Lindsay L.
Mize,
Director
Notice of Violation and Assessment of Civil Penalty
LV-2009-01 14 and NOV-2009-LV- 01 58 Response
South Granville Water and Sewer Authority
NPDES Permit No: NC0026824
Granville County
The above investigations took from mid November until mid December 2008.
Immediately all solids handing processes were evaluated for antimony and
total phosphorus content. Data was evaluated, adjustments made in solids
handling procedures, decant flows regulated more closely, and new
operational procedures developed. These steps have results in zero antimony
211 West C Street, Butner 27509
[phone] FAX [phone]
www.sgwasa.org
On April 16, 2009 I received the above referenced Notice of Violation and
assessment of civil penalty and notice of violation for discharge limits that
occurred in November 2008, December 2008 and January 2009. In
response to the November 2008 violation SGWASA took the following
actions:
Danny Smith
Surface Water Protection Supervisor
1628 Mail Service Center
Raleigh, NC 27699-1628
Sincerely,
4
Cc:
violations in the months of February, March, and April of 2009. SGWASA
continues to investigate all possible sources of effluent limits violations.
SGWASA has hired CDM to conduct a capacity study of the plant. CDM is
looking at possible process changes to maximize nutrient removal at the
plant which includes the evaluation of all other plant processes that have an
impact on plant performance. SGWASA expects this study to have a positive
impact on the removal efficiencies of all pollutants of concern at the plant
including antimony.
If you have any question, please contact me at 919-575-4068 or e-mail me
at [e-mail] .
Lindsay Mize,
Executive Director
Winfred Dancy, Utilities Director
Jarvis Knooce, Chief Operator
MEETING AGENDA
Meeting with DENR DWQ
Date: April 16,2009
Time: 2:00-3:00pm
Location: DENR (3800 Barrett Drive, Raleigh, NC)
Discussion Topic
1)Introductions
Summary of Project Goals and Objectives2)
3)
a) Operational modifications
b) Miscellaneous improvements
4)Master Planning
a) Near-term strategy
b) Long-term strategy
5)Project Schedule
6)Adjourn
*
4
A
South Granville Water and Sewer Authority
WWTP Capacity Development Master Plan Study
Existing WWTP Optimization Plan (for compliance with current conditions)
41
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MEETING AGENDA
Meeting with DENR DWQ
Date: April 16,2009
Time: 2:00 - 3:00pm
Location: DENR (3800 Barrett Drive, Raleigh, NC)
Discussion Topic
1)Introductions
2)Summary of Project Goals and Objectives
3)Existing WWTP Optimization Plan (for compliance with current conditions)
a) Operational modifications
b) Miscellaneous improvements
4)Master Planning
a) Near-term strategy
b) Long-term strategy
5)Project Schedule
6)Adjourn
South Granville Water and Sewer Authority
WWTP Capacity Development Master Plan Study
r"7” ,'T
Dear Mr. Mize:
North Carolina Division of Water Quality
Phone[phone]
FAX [phone]
Dee Freeman
Secretary
.One,
North Carolina
--------Naturally
Customer Service
1-877-623-6748
Subject: Compliance Evaluation Inspection
NPDES Permit No. NC0026824
SGWASA WWTP
Granville County
Mr. Lindsay Mize, Executive Director
2°1 wGc sXt & SCWage Auth0rity (SGWASA)
Butner, NC 27509
* • 4^*
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins
------------------------- ----------------------Director
August 7,2009 ' ---------
Beverly Eaves Perdue
Governor
compliance evZo^nTpfcuTn °ffiCe (RRO) conducted a
^b^Ch?rFlORF? of the Mity, was appreciated as iiX- DanCy’the operator in
report ts attached. The following observations were made: inspection process. The inspection
grease removal and S S'* ™<
generators, and post aeration. The plant discharges tSj’’n5™" feed’tW0 stand-by power
NSW waters in the Neuse River basin. ° P of Reeds Greek, which is classified WS-IV,
station S w?16 “lb pUmp
The facility must ensure that the high water alarms ar? / the ,Wet weI110 reach a certain level,(preferably by pulling up and flipp^g the float to achvate^ 1 ^d^gular aIarm tes* * Practical
•RaioESbSTbSSZw eweially the
One of the three clarifiers and one oxSion toch w“e not^61"’^ “ g0°d °PerationaI condlti™-
caustic feeding systems were functioning. US£ beCaUSe °f low flow- The and
returned to theteadoTthe’pl'S fortS^T^^^^ Water from digest™ «
application. ’ ckenea sludge is hauled by Granville Farms for land
Internet t^w.ncwaWal^""^ Surface Waler Protection
1628 Mail Service Center Raleigh. NC 27699-1628
An Equal Oppcrtunity/Ataative Action Employer - 50% Recycled/10% Post Consumer Paper
Sincerely,
Attachments
Compliance Inspection Report
Cc: Central Files w/attachment
Raleigh Regional Office w/attachment
Winfred Dancy - SGWASA w/attachment
Cheng Zhang
Environmental Specialist
SGWASA WWTP
NPDES Permit No. NC0026824
Compliance Evaluation Inspection
or any of the findings, please contact Cheng Zhang at: [phone] (or email:
The overall condition of SGWASA WWTP is compliant with Division s^ards. Jf you have any questioi^
regarding the attached report
[e-mail]).
4 Standby power generators are tested under load monthly, which is well documented in the 0P^atl°n lo8
book The generator will be activated automatically when primary power is out. It was noted that the
generator had capacity to operate the entire site except the sludge holding digester during power outrage.
5 Recent personnel change was noted. Winfred Dancy is the ORC and Mickey Alston is the backup ORC
The ORC maintains a daily logbook. Lab results, chain-of-custody forms, and DMRs were complete and
current, kept in good order and ready for review. March 2009 DMR data were compared to lab bench
sheets; no data transcription errors were noted during the inspection.
6. The right of way to the outfall was well maintained. The effluent was observed to be clear and free of
solids. No visible impacts were noted immediately downstream the effluent pipe.
EPA
3L
Remarks211
66
80
Entry Time/Date Permit Effective Date
08/12/01
H St Off NCSR 1117 Exit Time/Date Permit Expiration Date
Butner NC 27509
13/01/31
Other Facility Data
Jarvis S Koonce/ORC/919-575-3111/
(See attachment summary)
Agency/Office/Phone and Fax Numbers
Cheng Zhang RRO WQ//919-791-4200/
Myrl Wisely
RRO WQ//919-791-4200/
Page #1
yr/mo/day
09/08/05
NPDES
NC0026824
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
•—Reserved-
751 I I I
Inspection Work Days
67| I 69
Date
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
I11
Contacted
No
Areas Evaluated During Inspection (Check only those areas evaluated)
t | Operations & Maintenance Records/Reports
Effluent/Receiving Waters
Agency/Office/Phone and Fax Numbers
/ y
•0-3 (Rev 9-94) Previous editions are obsolete.
Date
Facility Self-Monitoring Evaluation Rating
_____70l_ll
Fac Type
20U
Inspector
19lil
Inspection Type
18l£j
Name(s) and Signature(s) of Inspector(s)
12|
QA
72[n]
B1
71 LI
-------------------------------------------------------------------------------Section B: Facility Data
POTW^ame^PDES XltTuXT'’'' 'ndUS,rial USerS disoharSinS'° PO™. also Include
SGWASA WWTP
73LU74
J17
Name. Address of Responsible Official/Title/Phone and Fax Number
Fred Dancy,211 W C St Butner NC 27509//919-575-4068/
■ Permit
Self-Monitoring Program
m Laboratory
Transaction Code
11 J 2L
Signature of Management Q A Revij
yC/f) 7^ '- A ,
EPA Form 35^0-" ‘ ’
Section C: Z “ ’
m Flow Measurement
H Sludge Handling Disposal | Facility Site Review
H Storm Water
Section D: Summary of Findinq/Comments (Attach additional sheets of narrative and checklists as necessary)
United States Environmental Protection Agency
Washington, D.C. 20460
Water Compliance Inspection Report
Section A: National Data System Coding (i.e., PCS)
09:20 AM 09/08/05
01:20 PM 09/08/05
Permit Yes No NA NE
0 O ■
■
# Are there any special conditions for the permit?■ o
Is access to the plant site restricted to the general public?■
■ 0
Yes No NA NE
■
■
■ ODD
■ O
Is the chain-of-custody complete?■ o
Dates, times and location of sampling
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?■
■
■
■ 0
■
■
■
■ 0
Operations & Maintenance
Yes No NA NE
Is the plant generally clean with acceptable housekeeping?■
Page #3
Permit: NC0026824
Inspection Date: 08/05/2009
Name of individual performing the sampling
Results of analysis and calibration
Owner - Facility: SGWASA WWTP
Inspection Type: Compliance Evaluation
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one
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?
Facility has copy of previous year's Annual Report on file for review?
Comment:
grade less or greater than the facility classification?
Is a copy of the current NPDES permit available on site?
Is the inspector granted access to all areas for inspection?
anTSodif°r tOta' Cyanide' di<=hlorobromomethane,
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?
(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?
Operations & Maintenance Yes No NA NE
MLSS, MCRT, Settleabie Solids, pH, DO, Sludge ■ O
Yes No NA NE
# Is composite sampling flow proportional?■ o o
Is sample collected above side streams?■
Is proper volume collected?■
Is the tubing clean?■ o
■
■
Bar Screens Yes No NA NE
Type of bar screen
a.Manual o
b.Mechanical
■ o
■
Is disposal of screening in compliance?■
Is the unit in good condition?■ o
Comment:
Grit Removal Yes No NA NE
Type of grit removal
a.Manual
b.Mechanical
Is the grit free of excessive organic matter?■ 0
Is the grit free of excessive odor?■
# Is disposal of grit in compliance?■ o
Comment:
GreaseRemoval Yes No NA NE
# Is automatic grease removal present?■
Page #4
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Permit: NC0026824
Inspection Date: 08/05/2009
# Is proper temperature set for sample storage (kept at less than
Is sampling performed according to the permit?
Comment:
Owner ■ Facility: SGWASA WWTP
Inspection Type: Compliance Evaluation
or equal to 6.0 degrees Celsius)?
Does the facility analyze process control parameters for ex­
Judge, and other that are applicable?
CommBnt. The facility analyzes MLSS, MLVSS, SRT, pH, DO settleable solids
nitrate-mtnte and phosphorous (at influent and effluent) daily. s’ettleaDle so"as’
Influent Sampling
Grease Removal Yes No NA NE
■
Aerobic Digester Yes No NA NE
Is the capacity adequate?■ o
Is the mixing adequate?■
Is the site free of excessive foaming in the tank?■
# Is the odor acceptable?■ ODO
■
Oxidation Ditches Yes No NA NE
Are the aerators operational?■
■
■
■
Is the DO level acceptable?■
■ o
■
■
Secondary Clarifier Yes No NA NE
■
■ O
■
Is the site free of weir blockage?■ 0
■ ODD
■
Is the site free of excessive floating sludge?■
Is the drive unit operational?■
■
■ o
Page #5
Is the return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Are the aerators free of excessive solids build up?
# Is the foam the proper color for the treatment process?
Does the foam cover less than 25% of the basin's surface?
Permit: NC0026824
Inspection Date: 08/05/2009
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Are settleometer results acceptable (> 30 minutes)?
Is the DO level acceptable?(1.0 to 3.0 mg/l)
Are settelometer results acceptable?(400 to 800 ml/l in 30 minutes)
Comment:
Is grease removal operating properly?
Comment:
Owner - Facility: SGWASA WWTP
Inspection Type: Compliance Evaluation
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 tankage available for properly waste sludge?
Comment:
■ o
Yes No NA NE
# Is total nitrogen removal required?■
# Is total phosphorous removal required?■
Type Biological
# Is chemical feed required to sustain process?■ 0
■ 0
Filtration (High Rate Tertiary)Yes No NA NE
Type of operation:Down flow
Is the filter media present?■
Is the filter surface free of clogging?■
Is the filter free of growth?■ o
Is the air scour operational?■
Is the scouring acceptable?■
■
Standby Power Yes No NA NE
Is automatically activated standby power available?■ o
Is the generator tested by interrupting primary power source?■
Is the generator tested under load?■ o
Was generator tested & operational during the inspection'? ■ o
■ 0
■
Is the generator fuel level monitored?■
The Iwo generators are tested monthly, they are capable to run the entire
Yes No NA NE
Page #6
Comment: ” ’
plant except for holding digesters.
FlowJVIeasurement - Effluent
Permit: NC0026824
Inspection Date: 08/05/2009
Is the clear well free of excessive solids and filter media?
Comment:
Owner - Facility: SGWASA WWTP
Inspection Type: Compliance Evaluation
Secondary Clarifier
Is the sludge blanket level acceptable'? (Approximately % of the sidewall depth)
Comment: The sludge blanket was two to three feet.
Nutrient Removal
Yes No NA NE
Is nutrient removal process operating properly?
Commant: The BNR removes nitrogen and phosphorous biologically. Further removal
to se^onda™clalrffilre'eVed bV addlt,on of alum before the oxidation ditch effluent goes
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?
Flow Measurement - Effluent Yes No NA NE
# Is flow meter used for reporting?■
Is flow meter calibrated annually?■
Is the flow meter operational?■ o
■
Laboratory Yes No NA NE
■ □00
■ ODO
■ DOO
■ 0 0 0
■ DOO
0 0 ■ 0
Chemical Feed Yes No NA NE
Is containment adequate?■ ODD
Is storage adequate*?■ ODD
Are backup pumps available?■ ODD
■ ODD
Yes No NA NE
■ ODD
■ ODD
Is there adequate reserve supply of disinfectant?■ ODD
Is the level of chlorine residual acceptable?■ ODD
■ ODD
■ ODD
■ ODD
0 ■ 0 0
)
Page #7
If yes, then what is the EPA twelve digit ID Number? (1000-
If yes, then when was the RMP last updated?
Is the contact chamber free of growth, or sludge buildup?
Is there chlorine residual prior to de-chlorination?
Are cylinders secured adequately?
Are cylinders protected from direct sunlight?
Permit: NC0026824
Inspection Date: 08/05/2009
than 2500 lbs of Chlorine (CAS No. 7782-50-5)?
. If yes, then is there a Risk Management Plan on site?
Two pupms are available for each chemical (alum and caustic).
Disinfection-Gas
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?
Owner - Facility: SGWASA WWTP
Inspection Type: Compliance Evaluation
Is the site free of excessive leaking?
Comment:
(If units are separated) Does the chart recorder match the flow meter?
Comment:
Does the Stationary Source have more
# 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?
Comment:
Disinfection-Gas Yes No NA NE
De-chlorination Yes No NA NE
Type of system ?Gas
Is the feed ratio proportional to chlorine amount (1 to 1)?■
Is storage appropriate for cylinders?■
■
■
■
Number of tubes in use?
Comment:
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained?■
■ 000
0 ■
Yes No NA NE
■ ODD
Is sample collected below all treatment units?■ ODD
Is proper volume collected?■ ODD
Is the tubing clean?■ ODD
■ ODD
■ 0 O
Comment:
Yes No NA NE
required by the permit (frequency, sampling type, and sampling location)? ■ODD
Puny) Station - Influent Yes No NA NE
Is the pump wet well free of bypass lines or structures?■ ODD
Page #8
Sulfur dioxide is used for de-chlorination. Feed ratio to chlorine is 1 to 0.8.
Are tablet de-chlorinators operational?
Comment:
twelve digit ID number.'
Permit: NC0026824
Inspection Date: 08/05/2009
required) are they operating properly?
Comment: The effluent was clean and clear.
Effluent Sampling
Is composite sampling flow proportional?
Owner - Facility: SGWASA WWTP
Inspection Type: Compliance Evaluation
# Is de-chlorination substance stored away from chlorine containers?
Are the tablets the proper size and type?
Comment:
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are
lan or equal to 6.0 degrees Celsius)?
required by the permit (frequency, sampling type representative)?
Upstrearn / Downstream SampIing
Is the facility sampling performed as
Comment:
# Is proper temperature set for sample storage (kept at less th;
Is the facility sampling performed as
The facility needs to develop a risk management plan and aquire an ERA
) n 11 m hor •
Pump Station - Influent Yes No NA NE
Is the wet well free of excessive grease?■
Are all pumps present?■ o
Are all pumps operable?■ o
Are float controls operable? ■
Is SCADA telemetry available and operational?■
■
Page #9
Permit: NC0026824
Inspection Date: 08/05/2009
Owner - Facility: SGWASA WWTP
Inspection Type: Compliance Evaluation
Is audible and visual alarm available and operational?
Comment. It's impossible to pull up and flip the float to activate the audible and visual
IC rS30 °n y be! acl!l.v3ted bY turning off all pumps and let rising water flip the
offhe^arms p^aSicalhighwater audlble and visual alarms pperational and testing