NC0043176_NPDES Permit Renewal_20110411

s
ATFA
NCDENR
North Carolina Department .of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director . . Secretary
April 11, 2011
MEMORANDUM
TO: Dina Sprinkle
NPDES Unit, Point Source Branch
FROM: i Mark B rantley,. Environmental Chemist _,Aesi Q
Fayetteville Regional Office
THROUGH: Belinda Henson, Regional Supervisor 4-144'14.t �•
Surface Water Protection Section
Fayetteville Regional Office
SUBJECT: Major NPDES Permit Renewal
Black River WWTP
NPDES Permit NC0043176
Harnett County
Attached is the staff report and recommendations of the Fayetteville Regional Office concerning the subject
major NPDES permit renewal.
Also attached are copies of the most recent inspection report dated March 2, .2006, a list of monitoring
report violations from BIMS for 2009 and 2010, parameter averages from BIMS for 2009 through January
2011 as well as a facility rating sheet.
If you have any questions or require further information, please contact our office.
Attachments
cc: Central Files
Location: 225 Green Street, Suite 714. Fayetteville. North Carolina 28301
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: www.ncwaterqualitv.orq
An Equal Opportunity Employer
One
NorthCarolina
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SOC PRIORITY PROJECT: YES_ NO X
If Yes, SOC No.
To: NPDES Unit, Point Source Branch
Surface Water Protection Section
Attention: Dina Sprinkle
Date: April 7, 2011
NPDES STAFF. REPORT AND RECOMMENDATION
COUNTY: Harnett
Permit No. NC 0043176
PART I - GENERAL INFORMATION
1. Facility and Address:
City of Dunn Black River WWTP
PO Box 1065
Dunn, NC 28335
2. Date of Investigation: March 2, 2011
3. Report Prepared by: Mark Brantley, Environmental Chemist
4. Persons Contacted and Telephone Number:
Mrs. Donrie Dukes, ORC
910-892-2935
5. Directions to Site: Treatment facility is located at the end of a dirt road off the south side of NCSR 1844
(Susan Tart Road), opposite from Dunn Memorial Hospital
6. Discharge Point(s), List for all discharge points:
Latitude: 35° 17' 45" Longitude: 78° 38' 18"
Attach a U.S.G.S. map extract and indicate treatment facility site and discharge point on map.
U.S.G.S. Quad No. F-24-SW U.S.G.S. Quad Name: Erwin, NC
7. Site: Land available for expansion and upgrading: YES
8. Topography and relationship to flood plain: Basically flat with some gently sloping areas.
9. Location of nearest dwelling: Approximately 500 feet from entrance gate
10. Receiving stream or affected surface waters: Cape Fear River
a. Classification: Class WS-V
b. River Basin and Subbasin No.: Cape Fear River Basin 03 - 06 - 13
c. Describe receiving stream features and pertinent downstream uses:
The main stem of the Cape Fear River at this point is used primarily for fish and wildlife
propagation, fishing and boating. The City of Fayetteville has a water intake approximately 20
miles downstream. Access to this stretch of the river is limited.

PART II - DESCRIPTION OF WASTES AND TREATMENT WORKS
1. a Volume of wastewater to be permitted: 3.75 MGD (ultimate design capacity)
b. What is the current permitted capacity of the wastewater treatment facility? 3.75 MGD
c. Actual treatment capacity of the current facility (current design capacity). 3.75 MGD
d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous
two (2) years. The ATC 043176A01 was issued on April 30, 2010 for converting gas chlorination/de-
chlorination to a liquid chlorination/de-chlorination system. An ATC permit 043176A02 was issued on
March 26, 2010 for plant upgrades.
e. Please provide a description of existing or substantially constructed wastewater treatment facilities:
Since the issuance of the last NPDES permit for this facility the following changes have occurred:
Changes to the head works
• Replacement of existing influent pump station which consisted of three screw pumps with a new
influent pump station consisting of two T-10 and two T-12 Gorman Rupp pumps.
• Replacement of existing automatic bar screen and grit removal units with new automatic bar
screen grit removal units.
• Construction of a new pump station consisting of two T-10 Gorman Rupp pumps and a three
million gallon equalization tank.
Changes to bio-solids handling equipment
• Replacement of three blowers and aeration system in existing sludge digester
• Replacement of existing Diffused Air Flotation unit with a new Rotary Drum Thickener for
sludge thickening
Changes to dual chlorine contact basin
• Process change from gas chlorine to 12% sodium hypochlorite liquid for disinfection of effluent.
• Process change from gas sulfur dioxide to sodium bisulfite liquid for de -chlorination of effluent.
In addition to the changes listed above the BRWWTP continues to operate a coarse bubble activated
sludge aeration basin with four cells, three final clarifiers (60 feet in diameter), dual chlorine contact basin
(as described above), an effluent pump station with three vertical turbine pumps and river cascade
discharge. Sludge handling facilities include aerobic digester (150,000 gallon capacity), a secondary
aerobic digester/sludge holding tank (500,000 gallon capacity) and the rotary drum thickener as described
above.
f. Please provide a description of proposed wastewater treatment facilities: NA
g. Possible toxic impacts to surface waters: NA
h. Pretreatment Program (POTWs only):
In development Approved
Should be required Not needed X

•
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DWQ Permit No.
Permit Number WQ0006101
Residual Contractor: Synagro
Telephone:
b. Residuals stabilization: PSRP X PFRP Other
c. Landfill: NA
d. Other disposal/utilization scheme (specify): NA
3. Treatment plant classification (attach completed rating sheet): Grade IV
4. SIC Code(s): 4952
Primary 01 Secondary 23
Main Treatment Unit Code: 05003
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies involved
(municipals only)? NA
2. Special monitoring or limitations (including toxicity) requests:
No special monitoring requested. Monitoring and limits should be in keeping with basinwide strategy.
3. Important SOC, JOC, or Compliance Schedule Dates (please attach): N/A
Date
Submission of Plans and Specifications N/A
Begin Construction - N/A
Complete Construction N/A
4. Alternative Analysis Evaluation: Has the facility evaluated all of the nondischarge options available? Please
provide regional perspective for each option evaluated.
Spray Irrigation: NA
Connection to Regional Sewer System: NA
Subsurface: NA
Other disposal options: NA
5. Other Special Items: None

• PART IV - EVALUATION AND RECOMMENDATIONS
According to some of the data and information provided in the renewal application, the City of Dunn has reduced
some of their inflow and infiltration through sewer rehabilitation projects. They are also looking into the
possibility of flow equalization facilities at the treatment plant and expanding the capacity of their Eastside
pumping system. It is the recommendation of the Fayetteville Regional Office that the subject application for
permit renewal be processed in keeping with basinwide strategy.
Signature of Report reparer
of Report reparer
-6eLdeD 96,/nopylD
Regional Supervisor, Surface Water Protection Section
Date

� © b
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
March 7, 2011
Ronald Autry, City Manager
City of Dunn
P.O. Box 1065
Dunn, NC 28335
SUBJECT: March 2, 2011 Compliance Evaluation Inspection
City of Dunn
Dunn WWTP
Permit No: NC0043176
Harnett County
Dear Mr. Autry:
Enclosed please find a copy of the Compliance Evaluation Inspection form from the inspection conducted .on
March 2, 2011. The Compliance Evaluation Inspection was conducted by Mark Brantley, Environmental Chemist,
of the Fayetteville Regional Office. The cooperation of Mrs. Donrie Dukes, Grade IV ORC, and Mr. Gary Barefoot
was greatly appreciated. The facility was found to be in Compliance with permit NC0043176. As a reminder,
preservation of the Waters of the State can only be achieved through consistent NPDES Permit compliance.
Comments
• Construction on plant upgrades is currently ongoing. DWQ understands the following items have been
installed but have not been placed into service as of the date of the inspection: new influent pump station,
bar screens, grit removal system, influent flow meter, equalization tank, rotary drum thickener, and new
digester blowers.
• Maintenance records and logbooks are very well kept.
• November 2010 laboratory bench sheets were compared to the DMR and no transcription errors were found
at that time.
North Carolina Division of Water Quality/Aquifer Protection Section 225 Green St./ Suite 714 Fayetteville, NC 28301 Phone [phone]
FAX [phone] Internet: h2o.enr.state.nc.us Customer Service 1-877-623-6748
forth Carolina
Naturally
An Equal opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

EPA
United States Environmental Protection Agency
Washington, D.C. 20460
-Water Compliance Inspection Report
Section A: National Data System Coding (i.e., PCS)
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 1NI 2 151 31 NC0043176 111 121 11/03/02 117 181cl 191 s1 201 1
Remarks
211IIIIIII1I11I1I1II1I III1•IlII1III IIII IIII IIIIIII"
Inspection Work Days Facility Self -Monitoring Evaluation Rating
671 169
B1 QA
Reserved
701 31 711 N 1 721 N 1 731 1 1 74 751 1 1 1 1 1 1 1 80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Dunn WWTP
Susan Tart Rd
Dunn NC 28335
Entry Time/Date
10:45 AM 11/03/02
Permit Effective Date
07/02/01
Exit Time/Date
01:30 PM 11/03/02
Permit Expiration Date
11/09/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Donrie Eldridge Dukes/ORC/910-892-8162/
Name, Address of Responsible Official/Title/Phone and Fax Number
Ronald D Autry,PO Box 1065 Dunn NC 28335//910-892-2633/'
Contacted
No
Other Facility Data
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
■ Permit ■ Flow Measurement ■ Operations & Maintenance MI Records/Reports
III Self -Monitoring Program ■ 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)
Mark Brantley
A„,, 3 - 7-4
Agency/Office/Phone and Fax Numbers
FRO WQ//910-433-3300 Ext.727/
Date
Signature of Management Q A Reviewer
Belinda S Henson
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Agency/Office/Phone and Fax Numbers
FRO WQ//910-433-3300 Ext.726/
Date
3-7-//
Page # 1

Permit: NC0043176 Owner - Facility: Dunn WWTP
Inspection Date: 03/02/2011 Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? • n n n
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ n n n
Judge, and other that are applicable?_
Comment:
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application? n n • n
Is the facility as described in the permit? m n n n
# Are there any special conditions for the permit? n n • n
Is access to the plant site restricted to the general public? ■ n n n
Is the inspector granted access to all areas for inspection? ■ ❑ n n
Comment:
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? • n n n
Is all required information readily available, complete and current? ■ n n n
Are all records maintained for 3 years (lab. reg. required 5 years)? ■ n n n
Are analytical results consistent with data reported on DMRs? M n n n
Is the chain -of -custody complete? ■ n n n
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? ■ n n n
Has the facility submitted its annual compliance report to users and DWQ? R n n n
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? ❑ n n
Is the ORC visitation log available and current? • n n n
Is the ORC certified at grade equal to or higher than the facility classification? sin i] n
Is the backup operator certified at one grade less or greater than the facility classification? IN n n ❑
Is a copy of the current NPDES permit available on site? • n n n
Page # - 3

Permit: NC0043176 Owner - Facility: Dunn wNTP
Inspection Date: 03/02/2011 Inspection Type: Compliance Evaluation
Bar Screens Yes No NA NE
Are the bars adequately screening debris? ■ n n ❑
Is the screen free of excessive debris? ■ n n n•
Is disposal of screening in compliance? ■ ❑ n n
Is the unit in good condition? ■ n ❑ n
Comment: The new bar screen has been insalled but has not been placed into service.
Grit Removal Yes No NA NE
Type of grit removal
a.Manual n
b.Mechanical ■
Is the grit free of excessive organic matter? ■ n n n
Is the grit free of excessive odor? ■ n n n
# Is disposal of grit in compliance? ■ n ❑ n
Comment: The new grit system has been installed but has not been placed into
service.
Aeration Basins Yes No NA NE
Mode of operation Ext. Air
Type of aeration system Diffused
Is the basin free of dead spots? ■ n n n
Are surface aerators and mixers operational? ❑ n ■ n
Are the diffusers operational? IN n n n
Is the foam the proper color for the treatment process? ■ n n ❑
Does the foam cover less than 25% of the basin's surface? ■ n n n
Is the DO level acceptable? ■ n n n
Is the DO level acceptable?(1.0 to 3.0 mg/I) ■ n n n
Comment:
De -chlorination Yes No NA NE
Type of system ?. Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)? ■ n n n
Is storage appropriate for cylinders? n n ■ n
# Is de -chlorination substance stored away from chiorine containers? , n n n ■
Page # 5

Permit: NC0043176 Owner - Facility: Dunn WWTP
Inspection Date: 03/02/2011 Inspection Type: Compliance Evaluation
Effluent Sampling Yes No NA NE
Is proper volume collected? 11111n i_I n
Is the tubing clean? • n n n
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? ■ n ❑ ❑
Is the facility sampling performed as required by the permit (frequency, sampling type representative)? ■ ❑ n n
Comment:
Upstream / Downstream Sampling Yes No NA NE ,
Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? ❑ ❑ ■ ❑
Comment: Facility is a member of the Middle Cape Fear River Basin Association
Secondary Clarifier Yes No NA NE.
Is the clarifier free of black and odorous wastewater? ■ ❑ n ❑
Is the site free of excessive buildup of solids in center well of circular clarifier? ■ ❑ n ❑
i
Are weirs level? R n n n
Is the site free of weir blockage? • n n n
Is the site free of evidence of short-circuiting? • n 11 ❑
Is scum removal adequate? • n n f1
.Is the site free of excessive floating sludge? ■ n n n
is the drive unit operational? • 0 n El
Is the return rate acceptable (low turbulence)? • n 11 n
Is the overflow clear of excessive solids/pin floc? R n 0 0
Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) ■ n n n
Comment:
Disinfection -Liquid Yes No NA NE
Is there adequate reserve supply of disinfectant? • n n 11
(Sodium Hypochlorite) Is pump feed system operational? ■ 11 ❑ ❑
Is bulk storage tank containment area adequate? (free of leaks/open drains) ■ n n
is the level of chlorine residual acceptable? • n n n
Is the contact chamber free of growth, or sludge buildup? ■ fl ❑ n
Is there chlorine residual prior to de -chlorination? ■ ❑ ❑ n
Comment:
Page # 7

MONITORING REPORT(MR)'VIOLATIONS for:
PERMIT: NC0043176
FACILITY: City of Dunn - Dunn WWTP
COUNTY: Harnett
Report Date: 03/31/11
REGION: Fayetteville
Limit Violation
MONITORING OUTFALL /
REPORT PPI LOCATION PARAMETER
12 -2009 001 Effluent
07 -2010 001 Effluent
09 -2010 001 Effluent
02-2010 001 Effluent
Chlorine, Total Residual
Chlorine, Total Residual
Chlorine, Total Residual
Flow, in conduit or thru
treatment plant
VIOLATION UNIT OF
DATE FREQUENCY MEASURE LIMIT
12/09/09 5 X week ug/I ' 28 29 3.57
07/16/10 5 X week ug/I 28 29
09/01/10 5 X week ug/I 28 30 7.14
02/28/10 Continuous . mgd 3.75 4.12 9.85
CALCULATED .
VALUE OVER LIMIT
3.57
VIOLATION TYPE
Daily Maximum Exceeded
Daily Maximum Exceeded
Daily Maximum Exceeded
Monthly Average Exceeded
VIOLATION ACTION
No Action, BPJ
No Action, BPJ
No Action, BPJ
Proceed to NOV

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
OUTFALL: 001
EFFLUENT
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2009
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 5 OF 7
00010
deg c
Temperature,
Water Deg.
Centigrade
00300
mg/1
DO, Oxygen,
Dissolved
00310
mg/1
BOD, 5-Day (20
Deg. C)
00400
su
pH
00530
mg/1
Solids, Total
Suspended
00600
mg/1
Nitrogen, Total
(as N)
00610
mg/1
Nitrogen,
Ammonia Total
(as N)
00625
mg/1
Nitrogen,
Kjeldahl, Total
(as N)
1 09
14.896774
7.276
24
6.55
6.29 - 6.6
30
8.14
2.03
4
0.80665
1.65
2-09
14.107143
7.485
24
6.49
6.4 - 6.67
30
8.19
2.58
4
1.3554
1.9
3-09
14.819355
7.225455
24
7.913043
6.13 - 6.51
30
9.234783
2.48
4
0.814957
1.25
4-09
17.41
6.908095
6.19 - 6.51
2.84
5-09
20.970968
6.53
6.39 - 6.7
1.53
6-09
23.993333
6.427727
6.54 - 6.94
1.43
7-09
25.580645
6.387273
6.71 - 7.1
1.35
8-09
26.316129
6.53381
6.41 - 6.78
1.45 -
9-09
24.856667
7.041429
6.67 - 6.99
1.6
10-09
22.029032
7.447727
1
6.78 - 7.02
1.24
11-09
19.41
7.686667
6.12 - 7.01
1.09
12-09
16.303226
7.617143
6.03 - 6.7
1.4

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2009
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 6 OF 7
00630
mg/1
Nitrite plus
Nitrate Total 1
DET. (as N)
00665
mg/1
Phosphorus,
Total (as P)
31616
#/100m1
Coliform, Fecal
MF, M-FC
Broth,44.5C
50050
mgd
Flow, in
conduit or thru
treatment plant
50060
ug/1
Chlorine, Total
Residual
C0310
mg/1
BOO, 5-Day (20
Deg. C) -
Concentration
C0530
mg/1
Solids, Total
Suspended -
Concentration
C0600
mg/1
Nitrogen, Total
(as N) -
Concentration
1-09
3.75
0.38
0.4
10.593897
2.618677
0
2 - 09
3.75
0.68
0.45
5.244956
2.2455
0
3-09
3.75
1.23
0.6
19.911056
3.580935
0
4-09
3.75
12
30
0.42
7.319279
2.854967
0
4.966667
4.971429
3.26
5-09
3.75
12
30
1.47
9.140179
2.086419
0
4.38
4.915
3
6 - 09
3.75
12
30
0.74
37.007489
1.670267
0.909091
4.604545
5.236364
2.17
7-09
3.75
12
30
0.57
40.584668
1.923
6.045455
6.328571
5.657143
1.92
8 09
3.75
12
30
0.05
13.212475
3.356323
5.095238
4.3
6.4
1.5
9-09
3.75
12
30
1.36
17.582106
1.986967 .
0
5.052381
4.395238
2.96
10 09
3.75'
12
.30
1.93
9.950137
1.710355
9.045455 •
2.290476
3.952381
3.17
11 - 09
3.75
24
30
1.76
25.413996
2.759767
8.111111
4.021053
5.178947
2.85
12-09
3.75
24
30
0.37 .
42.668244
3.521161
6.142857
6.36
6.37
1.77

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
CO610
mg/1
Nitrogen,
Ammonia Total
(as N) -
Concentration
C0665
mg/1
Phosphorus,
Total (as P) -
Concentration
TGP3B
pass/fail
P/F STATRE 7Dax
Chr Ceriodaphnia
1 - 09
2-09
3-09
1
2
4-09
1.439333
0.2
2
5-09
1.1025
0.9
2
6-09
0.698273
0.6
1
2
7-09
0.793333
0.3
2
8-09
0.666909
0.7
2
9-09
0.319714
1.2
1
2
10-09
0.199238
1.9
4
11 - 09
0.723526
0.8
4
12-09
1.0275
0.1
1
PERIOD ENDING MONTH: 12 - 2009
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 7 OF 7
4

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
OUTFALL: 001
EFFLUENT
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2010
REGION: Fayetteville
DMR 12 Month Calculated ti
PAGE 5 OF 6
00010
deg c
Temperature,
Water Deg.
Centigrade
00300
mg/1
DO, Oxygen,
Dissolved .
00900
su
pH
00625
mg/1 •
Nitrogen,
Kjeldahl, Total
(as N)
00630
mg/1
Nitrite plus
Nitrate Total 1
DET. (as N)
31616
#/100m1
Coliform, Fecal
MF, M-FC
Broth,99.5C
50050
mgd
Flow, in
conduit or thru
treatment plant
50060
ug/1
Chlorine, Total
Residual
1 10
3.75
13.219355
7.899474 •
6.14 - 6.77
3.01
0.69
10.048643
3.44729
7.894737
2-10
•
3.75
12.228571
7.6335
6.19 - 6.71
1.03
0.96
20.593137
4.1195 Violation
5.45
3-10
3.75
13.987097
7.703043
6.38 - 6.76 .
2.52
0.23
18.765476
3.721871
5.521739
4-10
3.75
17.72
7.4
6.44 - 6.94
2.23
1
6.638646
2.498
0
5 - 10
3.75
21.43871
7.231
6.7 - 7
1.59
1.21
.7.966901
1.834548
2
6 10
3.75
25.046667
6.734545
6.85 - 7.11
3.42
0.27
20.601104
1.690333
4.863636
7-10
•
3.75
27.1645161
6.602381
6.87 - 7.2
1.56
0.61
36.52381
1.5092226
3.3809524
8 - 10
3.75
27.5548387
6.6209091
6.63 - 7.1.6
1.74
1.73
17.045455
1.7089645
12
9-10
3,75
26.2566667
7.0733333
6.44 - 7.03
1.21
2.53
19.285714
1.7236033
12.8095238
10-10
3.75
23.0096774
7.3738095
6.34 - 6.84
0.98
5.09
19.714286
2.2056548,
3.047619
11 10
3.75
19.0966667
7.1268421
6.41 - 6.86
1.26
6.9
4.421053
1.6548833
1.1052632
12-10
3.75
14.3451613
6.812381
6.09 - 6.7
1.1
9.16
7.6
1.7086323
1.15

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Hamett
PERIOD ENDING MONTH: 12 - 2010
REGION: Fayetteville
C0310
mg/1
BOD, 5-Day (20
Deg. C) -
Concentration
C0530
mg/1
Solids, Total
Suspended -
Concentration
C0600
mg/1
Nitrogen, Total
(as N) -
Concentration
C0610
mg/1
Nitrogen,
Ammonia Total
(as N) -
Concentration
C0665
mg/1
Phosphorus,
Total (as P) -
Concentration
TGP3B
pass/fail
P/F STATRE 7Day
Chr Ceriodaphnia
24
30
4
1-10
5.52
6
3.7
0.78915
0.2
24
30
4
2-10
8.18
6.75
1.99
1.32575
0.4 .
24
30
4
3-10
8.273913
8.091304
2.75
1.377043
0.3
1
12
'30
2
4-10
5.865
5.78
3.23
0.7383
0.4
12
30
2
5-10
5.033333
4.904762
2.8
0.617
0.8
12
30
2
6-10
5.086364
5.55
3.69
0.641591
2
1
12
30
2
7-10
5.215
8.57
2.17
0.3585
3.4 .
12
30
2
8-10
6.1217391
8.2869565
3.47
0.61
0.6
12
30
2
9-10
5.6095238
6.4571429
3.74
0.1014286
1.2
1
12
30
2
10-10
3.2380952
6.5333333
6.07
0.087619
1.3
24
30
4
11-10
3.5157895
5.0526316
8.16
0.0226316
1.5
24
30
4
12-10
4.2315789
6.4947368
10.26
0.0063158
1.3
1
DMR 12 Month Calculated
PAGE 6 OF 6
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