NC0043176_NPDES Permit Renewal_20060426

Michael F. Easley, Govemor
William G. Ross Jr., Secretary
North Carolina Department ofEnvironment and Natural Resources
Alah W. Klimek, P.E., Director
Division of Water Quality
April 26, 2006
MEMORANDUM
TO: Francis Candelaria
NPDES Unit, Point Source Branch
FROM: Michael Lawyer, Environmental Technicia
Fayetteville Regional Office
THROUGH: Belinda Henson, Regional Supervisor
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 2004 and 2005, parameter averages from BIMS for 2004, 2005 and January
and February 2006 as well as a facility rating sheet.
If you have any questions or require further information, please contact our office.
Attachments (5)
cc: Central Files
NorthCarolina
Nature!!
North Carolina Division of Water Quality 225 Green Street— Suite 714 Fayetteville, NC 28301-5043 Phone [phone] Customer Service
Internet: www.ncwaterquality.org • FAX [phone]
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper

SOC PRIORITY PROJECT: YES NO X
If Yes, SOC No.
To: NPDES Unit, Point Source Branch
Surface Water Protection Section
Attention: Francis Candelaria
Date: April 26, 2005
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: February 21, 2006
3. Report Prepared by: Michael Lawyer, Environmental Technician
4. Persons Contacted and Telephone Number:
Mr. Bobby Burnette, 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 th
two (2) years. NA
e. Please provide a description of existing or substantially constructed wastewater treatment facili-
The existing 3.75 MGD wastewater treatment facility consists of: three influent screw
rated at 1.75 MGD each and one suction lift pump rated at 5.25 MGD, a mechanical ba
an aerated grit removal and 250 GPM grit washer system, influent flow meter- 12" thro
• flume with pressure transducer, flow divider box which feeds a coarse bubble activated
aeration basin with four cells, three final clarifiers- 60' diameter, dual chlorine contact 1
minutes detention time at 3.75 MGD, dechlorination system, effluent pumps -three verti
pumps and river cascade discharge. Sludge handling facilities include aerobic digestor-
gallon capacity, secondary aerobic digester/sludge holding tank-500,000 gallon capacit}
dissolved air flotation (DAF) sludge thickener and six gravity sludge drying beds (no to
utilized).
f. Please provide a description of proposed wastewater treatment facilities: NA
Possible toxic impacts to surface waters:
Pretreatment Program (POTWs only):
NA
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: ABS Biosolids
Telephone: [phone]
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 specialmonitoring requested. Monitoring and limits should be in keeping with basinwide. strategy.
3. Important SOC, IOC, 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 dataand 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.
Si ; ature of Report4reparer
Regional Supervisor, Surface Water Protection Section
Date

.....,.. .....�.,,y, vv ..auva
William G:. Ross Jr.,: Secretary :
North Carolina Department of Environment and Natural Resources
Alan W. Klimek; P:Es;:Director
Division of Water Qualify --
March 2, 2006
Ronald D. Autry.+
City of_Dunn
PO Box T065::
Dunn, NC 28335
SUBJECT ,.February 21,"2906, 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. Report from the inspection
conducted on February 21, .2006. The time and assistance given by Mr. Bobby Bumette, ORC, and Ms.
: Donrie Dukes, Laboratory Supervisor, is, greatly -appreciated._ Mark Brantley, Trent_ Allen an'd myself
conducted a follow-up visit on March ..1,;,2006 to confirm that the effluent sampler is'set up` on a flow
proportional basis. Ms. Dukes was also present and again' I`would like to extend my gratitude for her time
and assistance. The facility was found to be -in Compliance with .permit NC0043176.-
Please refer to the enclosed inspection report for additional observations and comments. If you or your
staff has anyquestions, please call me at 910-486-1541, ext. 729:
Michael Lawyer
Environmental Technician
cc: Bobby Burnette, ORC
Donrie Dukes, ,Laboratory Supervisor
- Central Files
ayetteville Region
No thCarolina
• Vaturally
North Carolina Division of Water Quality 225 Green Street, Suite 714 Fayetteville, NC 28301-5043 Phone [phone] • : Customer Service .
Internet: www.ncwaterquality.ortt Fax [phone] ! 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper

United'States; Environmental Protection Agency . .
Washington; D.C. 20460
Water Compliance Inspection Report
Section A National. Data System Coding (i.e, PCS)
'Transaction Code NPDES ::yr/rho/day
1
I1J I 3 NC004176
I 1 11 12J 00/02/21 I.17.
rr 2 5
Remarks' ..
211 1 11 I "I 1 I .1 :l I I .1-I I 1 1 I I 1 :1.1. 1 I. I I- .I: 11'I 1'1 1 1 11 1 1.1 1
-- - ------=Reserved
73� 74
III 75 I I I' I
Form_ Approved
OMB:No 2040=005
Approval expires 8-31 .9
"Inspection Work Days
671 _ .I 69
Facility Self -Monitoring Evaluation Rating,
70I i3
QA;
711 72I ttI
B1
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
Name(s) of Onsite Representatlye(S)ffitleS(s)/Phone and Fax Number(s)
1//
Bobby Eldridge Bu nette/OPC/910.-892-2935/.
Name Address of Responsible Official/Title/Phone and Fax Number
Ronald;D,-Autry;PO .Box .1065 ,Dunn NC .283351/910-892-2633/
Contacted
Entry Time/Date
09: 00.."1M , 96/02/21
:Exit Tim•
e/Date
11':20 AM• O6/02/2I
Permit EffectiveDate
03'/03/01
Permit Expiration Date
06/09/30:.',.'
Other Facility Data
Section C:;Areas Evaluated During inspection (Check only'those areas evaluated)
II Permit
III Self -Monitoring Program
■ Laboratory •
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Flow Measurement , - III Operations & Maintenance. III Records/Reports I
II Sludge Handling Disposar l Facility Site Review I Effluent/Receiving Waters
(See attachment summary
Name(s) and Signature(s) of Inspectors)
Mike Lawyer.
Agency/Office/Phone and Fax Numbers
FRO WQ//910-486-1541'E__t:729/
Signature of Management Q A. Reviewer
ek-e, '7;47 Ilkler-/-0 •
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
• Agency/Office/Phone and fax Numbers
- •Datel.
S-3—..0 '.

NPDES:•
yr/rno/day Inspection Type
11 42 r 17 18�.�1
NC0043176
(cont.)
Section D. Summary of Finding(Comments (Attach additional sheets of narrative and checklists as necessary) '
Inspection Wes conducted with; the assistance of Mr Bobby Burnette, ORC,and Ms Donrie Dukes, Lab
Supervisor. A'copy of the current NPDES permitwas presented uponrequest and "Discharge Monitoring
Reports from January, Apriland September 2005 were reviewed for accuracy and :completeness. White no
permit limits were exceeded for the respective months; the monthly average for various parameters that
included results of less ;than detection limits Were calculated incorrectly The_correct method for: calculating
averages: with results of zero was discussed with Mr. Bumette and Ms' Dukes Foliowing;the records.
review,.a"tour of the facility was conducted. All treatment units at the:time of':inspection appeared to be in
good working order Upon inspecting the building`. which: houses the chlorine gas and sulfur dioxide gas
used for chlorination.f and dechiorination respectively, it was.noticed that cylinders for both gases are
routinely kept side by,side with no separation: This practice poses a potentially dangerous situation and as
suggested in many previous inspection reports should be reconsidered. Sludge in the aerobic digestor had
recentl been pumped into the facility's sludge holding tank where` it will subsequently be' removed and land
y
applied

Permit: NC0043176
Inspection.Date:, 02/21/2006
Permit.
Owner - Facility: Perin WWTP
Inspection Type:? Compliance Evaluation
(If the present permit 'e?ipireSi in 6 months 'or less) Has the permittee submitted a new application?:
Is the facilityas described in permit
# Are there`any special conditions for the permit.
Is access ta.th&Plarif Siiis,restriatedio the general public?,:,'
Is the inspector granted access to all areas' for inspection?
Comment._
Laboratory: -
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?
Is proper temperature set for sample storage (kept at 1.0 to 4.4 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: Facility uses Environment 1 for BOD analysis; Oxford Labs for. Chronic.
Toxicity and CET: for TKN and NO2+NO3. All other parameters are analyzed in-house
at the plant.
Record Keeping Yes . No NA NE
Are records kept and maintained as required by the permit? • 0 0 "0
Is all required information readily available, complete and current? • n, n n :..
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?
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Page '#

Permit: N00043176
Inspection Date::02/21/2006.;.,
Record Keeping
Owner :.Facility: Dunn WWfP
Inspection TypeCompliance Evaluation
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7.with a certified operator on each'shift?
Is th'e ORC visitation log available and current? • 0 Q o.
Is the ORC certified ;at grade equal to or higher than the facility classification' • L,', -0.0
Is the backup operator certified atone grade less or greater than the facility classification? _ I 0 0 0
Is a copy of the current NPDES permit available on site? n 0- 0
'Facility has copy of previous year's Annual Report on file for review?
Comment:
Operations & Maintenance
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process dcintrol parainaterS, fOr .: M4Sc+: \ ORT' Settleable Solids, pf-I.::I O Sludge. •` b,-:D n'
Judge, and other that are applicable?
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 generatortested &operational.during the inspection?
Do the generator(s)`have adequate capacity to operate the entire wastewater site?
Isthere an emergency agreement with afuel vendor for extended run, on back-up power
Is;the generator .fuel level monitored?
.
Comment On -site generator performs a self -test every Monday and runs_for
approximately 1 hour.. The fuel tank holds approximately 1500 gallons and is checked
on.a regular basis. ; If the fuel level drops to 1000 gallons, it is filled up,
Pump Station- `Influent .
Is the pump wetwell freeof bypass lines or structures?
Is the wet well free of excessive grease?
Are all pumps present?
Are all pumps operable?
Are float controls operable?
Is SCADA telemetry available and operational?
Is audible and visual alarm available and operational?
Yes .No. NA NE
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Yes No NA- NE
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�° - Page #

•
Permit NC0043176 Owner - Facility:. Dunn WV TP
Inspection. Date: 02/212006 Inspection Type: Compliance Evaluation
Pump_Station =:: Influent
Comment: Facility has three screw
Bar. Screens
Type of.barscreen•::.
a.Manual?.:;.
b.Mectianical
Are,the bars_, adequately: screening debris?
Is the screen free of excessive debris?
Isdisposal of screening in"compliance?
Is the unit in good condition?
ump's, which are. controlled by a bubbler system
Yes NO NA NE
Comment: Facility primarily.uses the mechanical bar screen, but can divert flow.to
manual screen if necessary.
Grit Removal
Type of grit removal_`:.
•a.Manual
b.Mechanical
Is the grit freeof excessive organic matter?
Is the' free of, excessive odor?
# Is'disposal of grit in compliance?
Comment The'' grit removal system.. operates for two hours during` the mornings..,and
afternoons.. At the time of inspection, the gritremoval system was -not, running.
Influent Sampling
#'Is'composite sampling flow.proportional?,
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
is proper temperature set for sample storage (kept at.1,0 to 4.4 degrees Celsius)?
Is sampling performed according to the permit?
Comment: Influent sampler is set up to take samples every fifteen minutes.
FlowMeasurenient - Influent
# Is flow meter Used for reporting?
Is flow meter calibrated. annually?
Yes No . NA NE
■O00
■0 ❑ 0
11000
00D.
• 0n0
Yes No .NA NE
oU.o0
■ 000
Page #

Permit: NC0043176
Inspection Date: 02/212006'`,
FlowMeasurement:influent
Is the flow meter operational? -
(If units areseparated) Does the chart recorder match the flow meter?
Comment;: Flour Meter was last calibrated in April 2005.
Owner - Facility: Dunn WWTP
Inspection Type: Compliance Evaluation..
Aeration Basins
Mode of operation
Type 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/I)
Comment: According to the ORC, DO levels typically fall between 0.5-2 5 mg/L.
AerobicDigester
Is the capacity adequate?
Is the mixing adequate?
Is the site free of excessive foaming in the tank?
# Is the, odor acceptable?
# Is tankage available for properly waste sludge? 0.0 Q ;
Comment: Atthe of inspection, the sludge had been pumped out of the digestor
and into the holding tank
Secondary Clarifier
Is the clarifier-freeof black and odorous wastewater?
Is.the•site free of excessive buildup of solids in center well of circular. clarifier?
Yes No NA NE
Eict. Air
Diffused
■❑❑❑
■ Q'.❑ Q: .
o
■70,0
. 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?
Yes No, NA NE-

Permit: NC0043176 Owner - Facility: Dunn WWTP
Inspection Date:., 02/21/2006 Inspection Type: Compliance Evaluation
Secondary Clarifier
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: During the inspection, the ORC checked the sludge blanket in two of the
facility's three clarifiers. The twelve feet deep clarifier contained approximately 3-3.5
feet of sludge. One of the ten feet deep clarifiers contained approximately 3.feet of
sludge.
Yes No NA NE
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- . NE
Disinfection -Gas YesNoNA
Are cylinders secured' adequately? • Q 0 0
Are cylinders protected: from direct sunlight? ■ Q 0 ❑
Is there adequate'reserve supply of disinfectant?
Is the level of chlorine residual acceptable? 11.6 0 0
Is the contact chamber free of growth, or sludge buildup? ■ 0 0 .❑
Is there chlorine residual prior to de -chlorination? ■ 0 0 0
Comment:
De -chlorination ' Yes NO'. NA NE
Type of system'? • Gas
Is the feed ratio proportional to chlorine amount (1 to 1)? ■ ❑ 0 0
Is storage appropriate for cylinders?' "non
# Is de -chlorination substance stored away from chlorine containers? 0 • 0 0
•
Are the tablets the proper size and type?. 0 0 • 0
Comment: The:chlorine cylinders and sulfur dioxide cylinders are housed in the same
building with no separation between them. This poses a safety risk, which should be
reconsidered.
Are tablet de -chlorinators operational? n ❑ ■ ❑
Number of tubes in use?
Comment: -
Flow Measurement -,Effluent Yes No NA NE
# Is flow meter used for reporting? ■ ❑ ❑ 0
Is flow meter calibrated annually? ■ ❑ n ❑
Is the flow meter operational? ■ Q ❑ Cl
Page # 7

Permit: NC0043176
Inspection Date: 02/21i2006
Owner - Facility: Dunn WVVTP
Inspection, Type:' Compliance Evaluation
Flow Measurement. -:Effluent.
(If units are separated) Does the chart recorder match the flow meter?
Comment:. Flow meter was last calibrated in' October 2005.
Effluent Sampling:
Is composite sampling flow proportional?
Is sample collected' below all treatment units?
Is proper volume collectd?
Is the tubing clean?
'Is proper temperature set for storage (kept at 1.0 to 4.4 degrees Celsius)
Is the facility sampling performed as required by the permit (frequency, sampling type representative)?
Comment:
Pump Station - Effluent
Is the pump wet well free of bypass lines or structures?
Are all pumps present?
Are all pumps operable?
Are float controls operable?
Is SCADA telemetry available and operational?
Is audible and visual -alarm available and operational?
Comment: The pumps are controlled by a dopier system.:
Yes- No NA NE
MOOD
Yes . No NA NE
■ O❑❑.
MOOD
ir_tn❑
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i.-
■•'❑:•❑ ❑
MOOD
Yes No. NA NE
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Page # 8

MONITORING REPORT(MR) VIOLATIONS for:
PERMIT: NC0043176
FACILITY: City of Dunn - Dunn WWTP
COUNTY: Harnett `.
Report Date: 04/25/06
REGION: Fayetteville.
Limit Violation
• MONITORING OUTFALL
REPORT / PPI .LOCATION ' PARAMETER
12 - 2004 001 Effluent Chlorine, Total Residual
12 - 2004 001 . Effluent Chlorine, Total Residual
06 - 2005 , 001 Effluent DO, Oxygen, Dissolved
VIOLATION .
DATE FREQUENCY
12/28/04 5 X week
12/29/04 5 X week
06/02/05 5 X week
09 - 2004 001 Effluent Flow, in conduit•or thru treatment 09/30/04 Continuous
plant
12 - 2004 001 Effluent pH
Monitoring Violation
12/27/04 5 X week
UNIT OF
MEASURE
ugll
ug/I
mg/I
mgd
su
CALCULATED
LIMIT VALUE
28 130
.. 28 300..
5 2.2
3.75 3.869
6 5.9
VIOLATION TYPE
Daily Maximum Exceeded
Daily Maximum Exceeded
Daily Minimum Not Reached
Monthly Average Exceeded
Daily Minimum Not'Reached
•
VIOLATION ACTION
Proceed to NOV
Proceed to NOV
No Action,Data Entry
Error
Proceed to NOV
Proceed to NOV
MONITORING OUTFALL - VIOLATION
REPORT / PPI LOCATION PARAMETER - DATE FREQUENCY
01 - 2004 001 Effluent BOD, 5-Day (20 Deg. C) 01/03/04 5 X week
01 - 2004 001 Effluent Coliform, Fecal MF, M-FC 01/03/04 5 X week
Broth,44.5C
01 - 2004 001 Effluent DO, Oxygen, Dissolved 01/03/04 5 X week
01 - 2004 001 Effluent Nitrogen, Ammonia Total (as N) 01/03/04 5 X week
03 - 2004 001 Effluent Nitrogen, Ammonia Total (as N) 03/06/04 5 X week
UNIT OF
MEASURE
mg/I
#/100m1
ring/1
mg/I
mg/I
01 - 2004 - 001 Effluent Solids, Total Suspended 01/03/04 5 X week mg/I
LIMIT
CALCULATED
VALUE
VIOLATION TYPE VIOLATION ACTION
Frequency Violation _ No Action, BPJ
Frequency Violation . No Action, BPJ,
Frequency Violation - No Action, BPJ
Frequency Violation No Action, BPJ
Frequency Violation No Action, BIMS
Calculation Error
Frequency Violation No Action, BPJ

PERMIT NUMBER: NC0043176
_. FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
OUTFALL: 001
EFFLUENT
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2004
REGION: ,Fayetteville
DMR-12 Month -Calculated•.
PAGE 1 :OF 6
.00010
-deg c
Temperature,
Water Dec).
Centigrade
00095
umhos%cm
Specific -
Conductance
00300
mg/1 -
DO,: Oxygen;
-Dissolved
00310
lbs/day'.
BOD, 5-Day . (20
.Deg. C)
00310
m9/1
BOD, 5-Day (20
00340
mg/1
COD, Oxygen
Demand, Chem.
(High Level)
•
00400
su
py
00500 -_
mg/1
Solids, Total
1 7.04
417
24
2-04
477
24
417
3-04.
24 -
417
4-04
12
417
5-04
12
1
417
6-04
417-
7-- 04
• 12
417
8..04
12
417
• 9-04
12
417
10 _--04
417
11 - 04.
24
417
12-04 •
24

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2004
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 2 OF 6
00530
lbs/day
Solids, Total
Suspended
00530
mg/1
Solids, Total
Suspended
00545
ml/1
Solids,
Settleable
00556
mg/1
Oil & Grease
00600
mg/1
Nitrogen, Total
(as N)
00610
lbs/day
Nitrogen,
Annonia Total
(as N)
00610
mg/1
Nitrogen,
Ammonia Total
(as N)
00665
mg/1
Phosphorus,
Total (as P)
1 - 04
.569
30
285
,;I
2-04
589
30
285
4
3-04
569
30
2,95
4
4-04
5,39
30
285
2
5-04
569
30
285
2
6-04
569
30
285
2
7 - 04
569
30
285
2
8-04
569
30
285
2
9-04
569
30
285
2
10-04
569
30
285
2
11 - 04
569
30
285
4
12-04
569
30
285
4

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Duiul WWTP
CITY: Dunn
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2004
REGION: -Fayetteville
DMR 12 Month Calculated
PAGE 3 OF 6
01027
mg/1
Cadmium, Total
(as Cd)
.01034
mg/1
Chromium, Total
(as Cr)
01042
mg/1
Copper, Total
(as Cu)
•
.01051
mg/1
Lead, Total (as
Pb)•
01067
mg/1
Nickel, Total
(as Ni)
01092
mg/1 ,. -
Zinc, Total (as
Zn).
31616
:#/100m1
Conform,, Fecal.
MF, M-FC
Broth,44.5C
31616
mpn/10om1
Coliform,•Fecal
MF, M-FC
Broth,44.5C
1 - 04
2-04
- 3-04
4-04
5-04
6-04
7-04
8-04
9-04
10-04
•11 04
12-04

PERMIT NUMBER: NC0043176
FACILITY NAME: • City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2004 DMR 12 Month Calculated
PAGE 4 OF 6
REGION: Fayetteville
50050
mgd
Flow, in
conduit or thru
treatment plant
50060
ug/1
Chlorine, Total
Residual
71900
mg/1
Mercury, Total
(as Hg)
TAA3B
percent
LC50 STAT 48hr
ACU Ceriodaphnia
TAA3D
percent
LC50 STAT 48hr
ACU D. PULEX
TGP3B
pass/fail
P/F STATRE 7Day
Chr Ceriodaphnia.
1 - 04
3.75
2-04
3.755
3-04
3.75
4-04
3.75
5 -"04
3.75
6-04
3.75
7-04
3.75
8-04
3.75
9-04
a., )
10-04
3.75
11-04
3.75
12-04
3.75

PERMIT NUMBER: NC0043176
FACILITY NAME: City •of Dunn --Dunn WWTP
.CITY: Dunn
OUTFALL: 001
EFFLUENT
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2004
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 5 OF 6
00010
deg c
Temperature,
Water Deg.
Centigrade
-00300
mg/1.
DO, Oxygen,
Dissolved
--
00310
mg/1
BOD, 5-Day
Deg. C)
-.
-
(20
00400 -
su
pH.
-00530
Mg/1
Solids, 'Total
Suspended
00600-
'mg/1 '
Nitrogen, Total
(as N) -
00610
,mg/1
Nit rocjen�
Ammonia Total"
(as ,N) -
00665
mg/1 -
Phosphorus,
Total (as P)
1 0-4
24 :
30 • . .
4 .
15.6419-35
8.735
2.111111
-
6 - 6.36.
4.355556
6.3
0.242944
1.55
24
..
J0
4
2-04
.
15.296552 -
8.78
2.957143
.:
6 •- 6.43
5.761905 .
7"
0.287905 .
0.8.
,
24
30
3-04
17.051613 •
.8.678261
4.047826 •
6.09 - 6.39
7.273913
2.1
0.222048
0.6
12_
3D'
2.:
4-04
18.96 •
- 8.419048
2.895 _
- _ -
, 6.11 - 6.59
5.335 .
8.3
0.2659
2
12
• 30
2
--5=04
-.
22.167742
8.21
3.17619
6.01 - 6.43 -
6.654762
3.6
.0.220524
1.18
12
30
.2 -
6-04
23.953333
7.313636 .
-, <
3.081818
6.02 - 6:42
-8.913636
•2.5 -
0.078636
1.6
-
12
30
2'
7-04
25.23871 •
7.009524 -
2.235
6 - 6.62 .
7.135
2.3
' 0.07015 -
1.3
_
12
30
-
2
.8-04
.
• 25
7.381818
2.426087
6.01 - ::6.6 -
6.952174
0
0.109043
1.1
'-
12
30
2
9 ='04
24.086667
7.17619
-
3.157143
6.04 - 6.62
•7.609524
13.8
0.081429
0.73
12
-
30
2
7.771429
2.97619
6 - 6.47
6.17619 - .
.6.5
0.030095
0.95
-
24 •
-
30 -
4
.11-04
20.173333
7.736842 '
3.878947
6.06 - 6.49
7.5
0 .
0.091526:
1.3
12 04
24
- .
30
4
17.325'806 -
8.37 .
3.631579
.5.9-V -'6.43
6.442105
0
-0.038789.. •
1.2
-

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Ilarnett
31616
fl/100m1
Coliform, Fecal
MF, M-FC
Broth,44.5C
50050
mgd
Flow, in
conduit or thru
treatment plant
50060
ug/1
Chlorine, Total
Residual
TGP3B
pass/fail
P/F STATRE 7Day
Chr Ceriodaphnia
3.75
1-04
4.522868
2.022258
8.387097
3.75
2-04
3.015469
2.924483
7.586207
3,75
3-04
6.843196
2.506161
7.096774
1
3.75
4-04
4.738147
1.9178
7.333333
3.75
5-04
13.499619
2.35829
3.870968
3,75
6-04
25.823843
3.265533
10.666667
1
3.75
7-04
8.97734
2.386484
7.741935
3.75
8-04
10.757562
2.824258
7.096774
3.75
9-04
15.249008
3.868767 Violatio
10
1
3.75
10-04
11.868302
2.240161
13.548387
3.75
11 - 04
12.488246
2.053067
14
3.75
12-04
4.042595
2.125645
23.548387
1
PERIOD ENDING MONTH: 12 - 2004 DMR 12 Month Calculated
PAGE 6 OF 6
REGION: Fayetteville

PERMIT NUMBER: NC0043176
FACILITY NAME: Cityof buiin - Dunn, WWTP
CITY: Dunn •
OUTFALL: 001.
EFFLUENT
COUNTY: Harnett
PERIOD ENDING MONTH:. 12:.- 2005
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 1. OF 6
00010,
deg c
Temperature,
Water Deg.
Centigrade
00095 --
Zumhos/cni'
Specific
Conductance
00300
mg/1'
DO, Oxygen,
Dissolved-,..
.00310
lbs/day
BOD, 5-Day (20
Deg. C)
00310
mg/1
'BOD, 5-Day, (20
Deg. C)
00390
mg/1
COD, oxygen -
Demand, Chem.'
(High Level)
00900
pH r
-00500
mg/1
Solids, .Total
1 05
4i7
24
417
24 -
C
. 417
• 3-05
24.
41.7 •
4-05
• 12
417
5-05
12
417
• -6-05
i2
417
7-05
12, •
477
8-05
12
4'17
9.- 05
.12
10 05
417
417
11 - 05
24:
12-05
417 -
24

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2005
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 2 OF 6
00530
lbs/day
Solids, Total
Suspended
00530
mg/1
Solids, Total
Suspended
00545
ml/1
Solids,
Settleable
00556
mg/1
Oil & Grease
00600
mg/1
Nitrogen, Total
.(as N)
00610
lbs/day
Nitrogen,
Ansonia Total
(as N)
00610
mg/1
Nitrogen,
Ammonia Total
(as N)
00665
mg/1
Phosphorus,
Total (as P)
1 - 05
569
30
285
4
2-05
569
30
205
4
3-05
569
30
285
4
4-05
39
30
285
2
5-05
569
30
285
6-05
569
30
285
2
7-05
569
30
235
2
8-05
569
30
285
2
9-05
569
30
285
2
10-05
569
30
285
2
11-05
569
30
285
4
12-05
569
30
285
4

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2005
REGION: Fayetteville
50050
rngd
Flow, in
conduit or thru
treatment plant
50060
ug/1
Chlorine, Total
Residual
71900
mg/1
Mercury, Total.
(as_Hg)
TAA3B
percent -
LC50 STAT 98hr
ACU Ceriodaphnia
TAA3D -
percent
LC50 STAT 98hr
ACU D. PULEX
TGP3B -
pass/fail
P/F STATP.E 7Day
Chr Ceriodaphnia.
1-05
3.75
2-05
3.75
3-05
3.75
4-05
3.75 '
5-05
3.75
6-05
3.75
7-05.
3.75
8-05
3.75
9-05
3.75
10-05
3.75
- -
11-05
"3.75
- - _. - -
- .__.. _" _ _
"......_ '-
___. - -
12-05
3.75
DMR-12 Month Calculated
PAGE 4 OF 6

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2005
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 3 OF 6
01027
mg/1
Cadmium, Total
(as Cd)
01034
mg/1
Chromium, Total
(as Cr)
01042
mg/1
Copper, Total
(as Cu)
01051
mg/1
Lead, Total (as
Pb)
01067
mg/1
Nickel, Total
(as Ni)
01092
mg/1
Zinc, Total (as
Zn)
31616
N/100m1
Coliform, Fecal
MF, M-FC
Broth,44.5C _
31616
mpn/100m1
Coliform, Fecal
MF, M-FC
Broth,44.5C
1-05
2-05
3-05
4-05
5-05
6-05
7-05
8-05
9-05
10-05
11-05
12-05

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Duim WWTP
CITY: Dunn
OUTFALL: 001
EFFLUENT
COUNTY: Harnett
PERIOD ENDING MONTH: 12 -2005
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 5 OF 6
00010
deg c
Temperature,
Water Deg.
Centigrade
00300
mg/1
D0, Oxygen,
Dissolved
00310
mg/1
B00, 5-Day (20
Deg..C)
00900
su
pH
00530
mg/1
Solids, Total
Suspended
00600
mg/1
Nitrogen, Total
(as N)
00610
mg/1
Nitrogen,.
Ammonia Total
(as N)
00665
mg/1
Phosphorus,
Total (as P)
24
30
4
1-05
16.419355
8.37
3.080952
6 - 6.57
3.552381
8.6
0.04981
1.5
24
30
4
2-05
15.964286
8.26
4.195
6 - 6.49
7.715
5.9
0.11245
0.9
24
30
,4
3-05
16.280645
8.1
3.636364
6.05 - 6.44
5.054545
2.3
0.267409
0.7
12
30
2
4-05
18.55
7.438095
3.375
6.09 - 6.43
5.18
3.5
1.00915
1
12
30
2
5-05
20.745161
7.880952
2.777273
6.05 - 6.43
5.340909
4
0.191136
1.23
12
30
2
6-05
-
23.576667
6.836364
3.413636
•6.01 - 6.5
6.254545
3.8
.0.270682
2.3
12
30
2
7-05
25.687097
6.47
2.9
6.02 - 6.5
5.31
7.7
0.1117
0.93
12
30
0
8-05
26.229032
6.413043
2.782609
6.03 - 6.64
5.434783
0
0.138957
2
1a
30
2
9-05
.
25.473333
6.661905
4.215
6.01 - 6.42
6.055
14
0.19545
2.6
12
30
2
10 OS •
22.9
7.366667
3.668182 _.
6 - 6.42
6.422727 -
0 - - _
-0.224864 - -
2:2
)
24
.30 -
4
11-05
19.836667
7.521053
4.984211
6.03 - 6.81
8.631579
12.9
0.168
1.2
24
30
4
12-05
17.312903
8.38
4.594737
6 - 6.35
9.821053
-7.2
0.175474
1.4

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
31616
0/100m1
Coliform, Fecal
MF, M-FC
Broth,44.5C
50050
rngd
Flow, in
conduit or thru
treatment plant
50060
ug/1
Chlorine, Total
Residual
TGP3B .
pass/fail
P/F STATRE 7Day
Chr Ceriodaphnia
3.75
1 - 05
10.990748
2.442226
10.967742
3.75
2-05
12.274137
2.252607
10
3.75
3-05
6.921762
2.873194
9.677419
1
'
3.75
4-05
12.660975
2.5929
6.666667
3.75
5-05
7.165219
1.843226
5.806452
3.75
6-05
16.742602
1.916833
5.333333
1
3.75
7-05
6.163375
1.762419
5.16129
3.75
8-05
0
1.618548
3.870968
3.75
9-05
5.407416
1.474467
4.666667
1
3.75
10-05
4.223732
1.479032
3.225806
3.75
11-05
11.729361
1.5227
6.666667
3.75
12-05
10.505072
2.292871
7.741935
1
PERIOD ENDING MONTH: 12 - 2005 DMR 12 Month Calculated
PAGE 6 OF 6
REGION: Fayetteville

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn -
• OUTFALL:.,001
0001'0
deg, c
Temperature,
Water.Deg.
Centigrade
00005
umhos /crn
Specific
Conductance
COUNTY: Harnett
00300
mg/1
D0,' Oxygen,
Dissolved
00310 -'
lbs/day
BOD, 5-Day (20 _
Deg. C)
PERIOD ENDING MONTH:- 12 - 2006
REGION: Fayetteville:
0031.0
mg/1
BOD, 5-Day (20 -
Deg. C)
00340
mg/1 •
COD, Oxygen
Demand, Chem..
'(High Level)"
00400_ -
• su
pH
DMR 12 Month. Calculated
PAGE 1 OF .5,
00500-
'mg/1'
Solids,- Total
417
1 - 06
24
417 •
- 06
.?4 '
417 -
3-06
417
4-06•
12
5-06
•417
12.
'417
6-06
12
7 -.06
417•
12 -
417
8.06
12
9-06.
417-.
-12
417- -
—10-06-
12
417
11-06
24
417
12-06
24

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2006
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 2 OF 5
00530
lbs/day
Solids, Total
Suspended
00530
mg/1
Solids, Total
Suspended'
00545
ml/1
'Solids,
Settleable
00556
mg/1
0i1 & Grease
00600
mg/1 ,
Nitrogen, Total
,...(as N)
00610
lbs/day
Nitrogen,
Ammonia Total
(as N)
00610
mg/1
Nitrogen,
Ammonia Total
(as N)
00665
mg/1
Phosphorus,
Total (as. P)
1 - 06
569
30
285
4
2-06
569 -
30
285
4
3-06
569
30.
285
4
• 4-06
569
30
285
2
5-06
569 -
30 .
285
2
6-06
569
30
285
2
7-06
569 -
30
285
2
8-06
569
30
285
2 .
9-06
569
-30
285 -
2
10-06
569
30'
285
2
11-06
569
-
30
285
4
12-06
569
30
285 -
4

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
COUNTY: Harnett
PERIOD ENDING MONTH: 12--2006
REGION: Fayetteville
DMR 12 Month Calculated
PAGE 3 OF .5
01027
mg/1.
Cadmium, Total
(as Cd)
01034,
rng/1 '
Chromium, Total
(as Cr)
01-042
mg/1
Copper, Total
(as'Cu)
01051
mg/1
Lead, Total las
Pb)
01067
mg/1
Nickel, Total
'(as Ni)
•
01092
rng/1 '
Zinc, -Total (as„°
Zn)
:31616
#/100ml
Coliform, Fecal
MF, M-FC
'Broth,44-.5C
31616
mpn/100m1
Coliform, Fecal'
MF, M-FC
Broth,44.5C
-'06-
2 - 06
3'- 06
4-06
5 06
6-06
`7-06
8 - 06,.
9 06
10-06
7-7
11=06
12-06

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
50050
mgd
Flow, in
conduit or thru
treatment plant
50060
ug/1
Chlorine, Total
Residual
COUNTY: Harnett
71900
mg/1
Mercury, Total
(as Hg)
TAA3B
percent
LC50 STAT 48hr
ACU Ceriodaphnia
PERIOD ENDING MONTH: 12 - 2006
TAA3D
percent
LC50 STAT 48hr
ACU D. PULEX
REGION: Fayetteville
TGP3B
pass/fail
P/F STATRE 7Day
Chr Ceriodaphnia
1 - 06
3.75
2-06
3.75
3-06
3.75
4-06
3.75
5-06
3.75
6-06
3.75
7-06
3.75
8-06
3.75
9-06
3.75
10-06
3,75
11-06
3.75
DMR 12 Month Calculated
PAGE 4 OF 5
12-06
3.75

PERMIT NUMBER: NC0043176
FACILITY NAME: City of Dunn - Dunn WWTP
CITY: Dunn
OUTFALL: 001 .
EFFLUENT
COUNTY: Harnett
PERIOD ENDING MONTH: 12 - 2006
REGION: Fayetteville
DMR 12 Month Calculated
PAGE . 5 OF 5
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)
00665
mg/1
Phosphorus,
Total (as P)
2_4
- 30
4 -
1-06
-
-
-
17.119355
7.445
4.761905
6 - 6.29
7
1.5
24
30
.4
2-06
16.146429
7.765
4.985 •
6.03 -. 6.28
10.06 •
5.6
0.0252
1.4
31616
#/100m1
Coliform, Fecal
MF, M-FC
Broth,44.5C
50050
mgd n
Flow, -in -
conduit or thi:u
treatment plant
50060
ug/1.-
Chlorine, Total
,Residual
3.75
1-06
8.919631
2:239194
5.16129
3. 75
2-06
7.426427
1.957464
2.857143

CUK'1'11+'1CATIUN: COMMISSIUN
SPRAY IRRIGATION
CLASSIFICATION
RATING SHEET FOR WATER POLLUTION CONTROL SYSTEMS
PERMIT NO: /1%043/%0 Check One: NC ✓ WQ HEALTH DP
ORC: /JDedr taNCk.
TELEPHONE: (?/O:)
RATING INFORMATION: (Before completing this section, please refer to pages 2.4)
4
PERMITTED FLOW:
3, 73
MGD BNR? YES
CHECK CLASSIFICATION: WASTEWATER: '; 1
COLLECTION: 1
SUBSURFACE LAND APPLICATION
2
PHYSICAL/CHEMICAI GRADE I GRADE II
'NG V
4 ✓
4
REGION P/e0 DATE: " 0O*0
REGIONAL OFFICE TELEPHONE NUMBER: (7/ )4f-15--r7 EXT: 7� g

Classification of Biological Water Pollution Control Treatment
Grade I Biological.WPCS..
- Septic tanlc/sand filter. systems
.Biological lagoon systems
- Constructed wetlands and associated appurtenances
Grade II Biological WPCS
- Systems that utilize an activated sludge or fixed growth process with a permitted flow
less than or equal to 0.5 million gallons per day (mgd)
Grade TII Biological WPCS
- Systems that util»p an activated sludge or fixed growth process with a permitted flow
of greater than 0:5 through 25 million gallons per day(mgd)
- Grade II systems that are required to achieve biological nutrient reduction
Grade IV Biological WPCS
- Systems that utilizing an activated sludge or fixed growth p
rocess with a permitted flow,
of greater than 2.5 million gallons per day (mgd)
- Grade III systems that are required to achieve biological nutrient reduction *
* Biological Nutrient Reduction
The reduction of total nitrogen or total phosphorous by an activated sludge or fixed growth
process as required by the facilities permit.
Classification of Collection Water Pollution Control Systems:
(whichever provides lowest grade)
grade.as;biological water pollution control system. Grade of system:
,'Based on population served:
1,500. or Less''= Grade I
1,501 to 15,000 =Grade II
15,001 to 50,000=Grade III
50,001 or more = Grade IV

Classification of Spray Irrigation Water Pollution. Control Systems:
.Systems which utilize spray irrigation for the reuse or disposal of wasterwater.
These systems include: septic tanks, sand filter, oil/water.separators lagoons,
storage basins; screening, sedimentation. Systems other than those listed above
shall be subject to additional classification.
Classification of Land Application of Residuals Systems: -
Systems permitted and dedicated for land application of residuals that are produced by a
water pollution controlsystem or contaminated soils.
Classification of Physical/Chemical Water Pollution Control Treatment Systems:
Grade I Physical/Chemical: Any water pollution control system that utilizes aprimarily
physical process to treat wastewater. This classification includes groundwater
remediation systems. **
Grade II Physical/Chemical: Any water pollution control', system that utilizes a primarily•
chemical process to treat wastewater. This classification includes reverse osmosis,
electrodialysis, and ultrafiltration systems. **
** Any water pollution control system that utilizes a phyicallchemical process to enhance an
activated sludge or fixed growth process, shall not be subject to additional classification.
Classification of Subsurface Water Pollution .Control Systems:
Systems which utili7P the soil for subsurface treatment and disposal of wastewater
and/or are required to have a certified operator under 15A NCAC 18A.1961. ***
*** Any subsurface system that has as part of its treatment process a water pollution control
systems that may be classified under Rules .0302 through .0307 of this section shall be
subject to addional classification.

Activated,Sludge - shallmean a biological i,Vastewater treatment process in which predominantly
biodegradable polluntants in wastewater are absorbed, or adsorbed by living aerobic organisms and
bacteria
• Chemical Process- shall mean a wastewater pollution control system process consisting
exclusiVely of the addition of chemicals to treat wastewater.
Collection System - shall mean a continuous connections of pipelines, conduits, pumping
stations,. and other related Constructions used to conduct wastewater to the water pollution
control systemt
Electrodialysis System - shall mean a system utlizing a selective separation of dissolved solids
process that is based on electrical charge and diffusion through a semipermeable membrane.
Physical Process - shall mean any water pollution control system process consisting of
electrodialysis, adsorption, absorption, air stripping, graviznetric sedimentation, floation, and
filtration as a means of treatment.
Reverse Osmosis System - shall mean a system which utilizes solutions and semipermable
membranes to separate and treat wastewater.
Ultrafiltration System - shall mean a system which utilizes a membrane filter to remove
pollutants from wastewater.
Water Pollution Control System - shall mean any system for the collection, treatment, or
disposal of wastewater and is classified under the provision Of G.S. 90A-37.
Note: Please refer to as. 90A-37 for additional information and definitions.