NC0023825 Evaluation

# 2d
V
Staff Review and Evaluation
NPDES Wastewater Permit
FACILITY INFORMATION
Facility Cecil C. Morton -Webb Apartments
NPDES No. NC0023825
Design Flow (MGD) 0.025 MGD
Facility Class II
STREAM CHARACTERISTICS
Stream Name
Stream Class
Sub -basin
Drainage Area (mil)
S7Q10 (cfs)
W7Q10 (cfs)
30Q2 (cfs)
IWC M
Little Northeast Creek
C-NSW
030502
27.9
1.3
2.9
5.4
2.89 %
Proposed Changes
Parameters Affected
Basis for change(s)
Monitoring frequencies
BODS, TSS,NH3,Feca1,TRC,
Temperature and pH
per regulation 2B .0500
Composite to Grab sample
Total Nitrogen and Total
Phosphorus
per regulation 2B .0500
Adding effluent sampling
Conductivity
per regulation 2B .0500
Deleting special condition D
Continually to evaluate
language
Contained in boiler plate
Compliance Schedule: None
Special Condition(s): Nutrient condition for permits without total phosphorus limits
Permits & Engineering Comments:
This is a permit renewal for a discharge into Little Northeast Creek of the White Oak River Basin.
This facility achieved compliance with permit limitations within the past twelve months. There was
no significant depletion of dissolved oxygen as a result of the discharge. Instream dissolved oxygen
values were in the 5 mg/l range. P&E will recommend existing limitations with monitoring updated to
reflect a class II facili . Ammonia calculated to be eater than 25 mg/1 from the mass balance
calculatio The facili s ou monitor for ammonia all year Since instream values for dissolved
oxygen are rderline, the ammonia summer limit will remain as required in the previous permit. The
region needs to verify facility class. It
Prepared by: 00
Regional Office Evaluation and Recommendations: °' 44,
� 49jill4�Lc.�u,

` State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Cecil C. Morton
Webb Apartments
NCSR 1406 and N. Carol Drive
Jacksonville, North Carolina 28546
Dear Mr. Morton:
LT�.�VA
70 0
OL
mom
EDo F=1
July 28, 1997
Subject: NPDES Permit Issuance
Permit No. NCO023825
Webb Apartments
Onslow County
In accordance with the application for a discharge permit received December 5, 1996, the Division is
forwarding herewith the subject NPDES permit. This permit is issued pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina
and the US Environmental Protection Agency dated December 6, 1983.
The Division received and reviewed your request for modification of monitoring requirements. In
addition to the difficulty of determining plant performance when the facility is monitored twice a day, the
stream segment for which your facility is discharging has documented algal problems. Requirements will
remain as indicated in the 213 .0500 regulations and the draft permit.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative
Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is
made, this decision shall be final and binding.
Please take notice this permit is not transferable. Part II, E.4. addresses the requirements to be
followed in case of change in ownership or control of this discharge.
This permit does not affect the legal requirements to obtain other permits which may be required by
the Division of Water Quality or permits required by the Division of Land Resources, Coastal Area
Management Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Mr. Mack Wiggins at telephone
number [phone], extension 542.
Sincerely,
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E.
cc: Central Files
Wilmington Regional Office
Mr. Roosevelt Childress, EPA
Permits and Engineering Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Permit No. NCO023825
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1.
other lawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the Federal Water Pollution Control Act, as
amended,
Cecil C. Morton
is hereby authorized to discharge wastewater from a facility located at
Webb Apartments
NCSR 1406
northeast of Jacksonville
Onslow County
to receiving waters designated as Little Northeast Creek in the White Oak River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III, and IV hereof.
This permit shall become effective September 1, 1997
This permit and authorization to discharge shall expire at midnight on June 30, 2(X)2
Signed this day July 28, 1997
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

r
Permit No. NC0023825
SUPPLEMENT TO PERMIT COVER SHEET
Cecil C. Morton
is hereby authorized to:
1. Continue to operate an existing 0.025 MGD extended aeration tertiary facility consisting of a
flow equalization tank, aeration basin, clarifier, sludge holding tank, high rate filters,
chlorination, instrument flow measurement, and gravity sludge drying beds located at Webb
Apartments, NCSR 1406, northeast of Jacksonville, Onslow County (See Part III of this
Permit), and
2. Discharge from said treatment works at the location specified on the attached map into Little
Northeast Creek which is classified Class C-NSW waters in the White Oak River Basin.

ROAD CLASSIFICATION
PRIMARY HIGHWAY LIGHT -DUTY ROAD HARD OR
HARD SURFACE IMPROVED SURFACE
SECONDARY HIGHWAY
HARD SURFACE C3=N= UNIMPROVED ROAD
Latitude 341144'50"
Longitude 77018'53"
Map # 129NE
Sub -basin 03-05-02
Stream Class
C-NSW
Discharge Class
07
Receiving Stream
Little Northeast Creek
Design 0 0,025 MGD Permit expires 6/30/02
I. SCALE 1:24 000
:;;,;�;,oa,oaw,aa:c�x,:c: - :;,wac;.;cocacu:�.::•:::• -:firnas-r�ava,;ocwor.
-V•h��rr:�raa»ro�•-•• -. •w•a�saaaeceieoe�: -•awaa�eeeeeoaixema:-
1 0
::t\+xen�tat 1'•- :� ?7MPC�w }}}' •'96]B? XMKVfw� - ':A000OfA00.dG.
EET
:7NPh�MIb^a' +i:
CONTOUR INTERVAL 5 FEET
QUAD LOCATION
Webb Apartments
N00023825
Onslow County

Vf
0
EL
A
S
IM
co
0
vo
0
a
0
CD
0
3
0
s
El
0
c
0
0
m
0
m
v,
Z
2
0
...
0
O
T
o
m
w
w
3
w
o
w
w
v
Se
Z
m
o
m
N
Z�
C
N
(D
=
0�
^
o
0
N
a
�
CL
w
C�7
►d
... CA
v
c$
o
m
c
O_
O
x
o-
N
Ci
cro
N
CO
7
0
�
cn
'
Cp
O
�
� CD
^p
Z
m
m
c
r
O
,..
0•
O
CA)
1
m
r4��•
y
.�
z
3
3
`�
�•
S
o
=
r�
co
cn
(� =
c
�cv
z
o
o
o
N
v
�0
O
CID
�, '
z
_
o
3
co
3
coCD
3
C° CD
►d
�
�' ?
C�
age
w
oCD<
ov
CD
a aCD
CD
CL
oA
cn
cn
—
?
CL
�-
�-;
o
3
co
3
to
'o
o
cn
CAD
V
'0
3
CD
T=
V
CD
CD
� V
--
I
CD
.
O
CR •
0
M
(D
(D
C
�
W
co
CD
O
H
oN
�
CD
ry
r+•
G)
G)
G7
G)
G)
G�
a
..•
c
co
1
cr
�
a•
1
CT
Q
Q
a-
a'
a-
a•
w
3
0
su
C
w
CD
CD
(IQ
p•
o N
3
OC
c
?
m
m
c
m
m
m
m
m
m
—
oo
w
o
c
�
qo
CD
0
m
0�
W

CD
m
c
�
0
� d
�
m
n
m
y
m
�
O
o?
�
o
a0
O
c
z
o
r
�
O
3
C°
n
a
z
-
x
�
v
..
m
o
CD
A
oCk
"
CD
c
o
cr
3
z
CrQ
co
g
,y
N
O
W
"
�
N
m
n
to
m
Fla

c�
O
a
co
s
CrQ
CD
0
w
CrQ
CA
Q
a
0
cr
CD
0
5'
c�
c
-4
O
-1
O
0
O
--1
<D
-•1
O
m
<D
v
y'
z
2
-+
0
m
O
m
O
m
m
su
w
w
v
cn
w
su
p
=
_
z
ACL
m
o
<
�'
w+
O
Cri
`<
m
a
.d „CS
�+
b
c
2
Z
n
^
(D
N
O
o
n
z
Cl)�'
p
?
m
7o
n
m
m
cP
hn
N
0
N
A
�•�
z
�--�
'W
z
m
(D
0CD
5.
r.
O•
to
AX
�_
c �.
CD
CDco��'
y
1
z
v
�'
>
�I
O
C/I
CJ]
�=
a
CD
�
r +
o
3
co
3
CA �
O
•
CD
as
CA
0 CA
z
�.
g
O as
C4
c�
c
c�
m
c =
z
r •
r
O
�
3
3CA
Ix
o
o
3
3
CCA
C
3
0
Q
D
m
m
N
m
m
m
TCD
.CA
o
w
w
CD
w
m
CD
CDm
m
m
r.
�. r►
n
7c
O
�
a
0
=
��°o
(D
y
��
_-
w
CD
°
=•
°
C)
o
..,
o•
n
�e
c
LA
c�
G�
G)
Q
Q
G7
Q
C
►�+,
w
Q
Q1
w
Al
w
w
Q
w
c
w
Q
w
c
w
..
W
3
=-
c
o
Z
CD
N
�
W
tro
Q
00
c•
0
m
m
m
c
m
m
m
m
m
m
—
O
A
V3
m
c
o
c
c
03
3
�
o
m
°
-

m
�
m
c
^
m
n
^�
to
�
to
��
o ?
��
Y
z
C
d
-�
a C)
O
z
co
CO
z
c�
3
C°
a
`
y
z
UQ
cn
c
m
~'
z
CD
--j
x
ril
Ix
CD
?
3
CD
�
w
m
•-
C
�
0Co0
m
C7
O
N
0
C
cr
m
3
a
?
o
m
q
Z
n
m
O
3
w
00
m
o
N
A
Ol
O
�
O
IlL

Part III Permit No. NCO023825
E. Nutrient Condition for Permits Without Phosphorus Limits
This permit may be modified, or revoked and reissued to include an effluent limitation on nutrients
for this discharge depending upon the following:
1. The findings of a study by the Division of Water Quality determine nutrient control is
necessary.
2. Local actions do not successfully reduce the nutrient loading on the receiving waters.
3. The onset of problem conditions in the receiving waters.

Permit Summary
NC0023825
This is a permit renewal for a discharge into Little Northeast Creek of the White
Oak River Basin. This facility achieved compliance with permit limitations
within the past twelve months. There was no significant depletion of dissolved
oxygen as a result of the discharge. Instream dissolved oxygen values were in the
5 mg/1 range. ME will recommend existing limitations with monitoring updated
to reflect a class II facility. Ammonia calculated to be greater than 25 mg/1 from
the mass balance calculation. The facility should monitor for ammonia all year.
Since instream values for dissolved oxygen are borderline, the ammonia summer
limit will remain as required in the previous permit. The region needs to verify
facility class.

r i
NCO023825
Residual Chlorine
Ammonia as NH3
(summer)
7010 (CFS)
1.3
7010 (CFS)
1.3
DESIGN FLOW (MGD)
0.025
DESIGN FLOW (MGD)
0.025
DESIGN FLOW (CFS)
0.03875
DESIGN FLOW (CFS)
0.0388
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
UPS BACKGROUND LEVE
0
UPS BACKGROUND LEVI
0.22
IWC (%)
2.89
IWC (%)
2.89
Allowable Concentration (
587.32
Allowable Concentration
27.17
Ammonia as NH3
(winter)
7010 (CFS)
2.9
Fecal Limit
200/100ml
DESIGN FLOW (MGD)
0.025
Ratio of 33.5 :1
DESIGN FLOW (CFS)
0.0388
STREAM STD (MG/L)
1.8
UPS BACKGROUND LEVI
0.22
IWC (%)
1.32
Allowable Concentration
120.05

To: Permits and Engineering Unit
Water Quality Section
Attention: Mack Wiggins
Date: December 12, 1996
NPDES STAFF REPORT AND RECOMMENDATION
County: Onslow
Permit No. NCO023835
PART I - GENERAL INFORMATION
1. Facility and Address: Webb Apartments
Rt. 2 Box 490
Piney Green Road
Jacksonville, NC 28546
D
2. Date of Investigation: October 7, 1996
3. Report Prepared by: Pat Durrett
4. Persons Contacted and Telephone Number: Wayne Morton, ORC
[phone]
5. Directions to Site: Head North on Highway 24 in
Jacksonville past the main entrance to Camp LeJeune, go to
the stop light (intersection of Piney Green and Highway 24)
Turn left onto Piney Green Road. Travel approximately 3
miles, the apartment complex is on the left. Turn left into
complex, after the first set of apartments on the right,
there is a small road leading to a large metal building, the
plant is housed inside the building.
6. Discharge Point: Latitude: 340 44' 49"
Longitude: 770 19' 50"
USGS Quad Sheet: I 29 NE Camp LeJeune
7. Size: There is very limited space for expansion.
8. Topography: The site is approximately 25' above MSL.

9. Location of nearest dwelling: Approximately loo feet from
the plant.
10. Receiving stream or affected surface waters: Little
Northeast Creek
a. Classification: Class "C-NSW" Waters
b. River Basin and Subbasin No.: White Oak River 030502
c. Describe receiving stream features and pertinent
downstream uses: Discharge is into a small stream
which has limited navigational potential and is part of
the New River watershed. There are numerous domestic
discharges on nearby streams.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
- 1. Type of wastewater: 100 % Domestic
0 % Industrial
a. Volume of Wastewater: 0.025 MGD (Design Capacity)
b. Types and quantities of industrial wastewater: None
C. Prevalent toxic constituents in wastewater: Chlorine
d. Pretreatment Program: N/A
2. Type of treatment: The facility consists of an existing
extended aeration package plant with tertiary filters. The
components include: flow equalization, aeration basin,
clarifier, sludge holding, high rate filters, chlorination,
instrumented flow measurement and gravity sludge drying
beds.
3. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM
permit No. W00000455, Russell Lewis Permit
b. Residuals stabilization: PSRP X PFRP
4. Treatment plant classification: Class II Facility
5. SIC Code: 4952
Wastewater Code: Primary: 01

PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grants
Funds (municipals only)? Yes
2. Special monitoring requests: Based on the fact that the
facility discharges into nutrient sensitive waters, the
limits should reflect numbers that meet the objective to
protect such waters. The facility currently has secondary
30/30 limits and 27.2 NH3 as N. It is capable of
consistently meeting much less. Limits as listed in the WQ
management plan for the White Oak Basin of 15 mg/1 BOD
would not be a problem for the plant.
3. Important SOC dates: NA
Submission of Plans and Specifications:
Award contracts for construction:
Complete Construction:
Final Compliance:
PART IV - EVALUATION AND RECOMMENDATIONS
Visual observations show the facility to be well operated
and maintained. They are a tertiary plant that must meet only
secondary limits. The facility has only domestic waste with a
very constant flow.
It is recommended that a draft permit be prepared and place
at public notice. If no significant adverse public comment is
received, it is recommended NPDES Permit No. N00023825 be
reissued in accordance with he asin wide permitting strategy.
�t 1
er Wal' Regional Supervisor
Date
cc: WiRO
Technical Support Branch
Central Files
PD:\SR\NC23825.SR

PERMIT NO.. NCO023825
PERMITTEE NAME: Cecil C. Morton
FACILITY NAME: Webb Apartments
Facility Status: Existing
Permit Status: Renewal
Major
Pipe No.: 001
Minor
Design Capacity: 0.025 MGD
Domestic (% of Flow):
Industrial (% of Flow):
100 %
1 ',
NPDES WASTE LOAD ALLOCATION
Comments: Refer : Basinwide / Streamline WLA File
Completed By Permits & Engineering
At Front Of Subbasin
STREAM INDEX: 19-16-2
RECEIVING STREAM: Little Northeast Creek
Class: C
Sub -Basin: 03-05-02
Reference USGS Quad: I29NE, Camp Lejeune (please attach)
County: Onslow
Regional Office: Wilmington Regional Office
Previous Exp. Date: 1/31/91 Treatment Plant Class: II
Classification changes within three miles:
ca. 1.3 mi to Northeast River which is SC
Requested b,
Prepared by:
Reviewed b3
)ate: 11/18/91
)ate: r,- to .4 •�-
)ate: -a-
Z /3 z
Modeler
Date Rec.
#
6isk.1
(0s7
l 1 Drainage Area (mi) �Z7, f Avg. Streamflow (cfs):_c
7Q10 (cfs ,-3 Winter 7Q10 (cfs) !2 , 4 30Q2 (cfs) 5,
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters 'l - �c 1 �a� t V I
Upstream I e o' p sfii�y,,,, Location
Downstream �, . n„ es cu--O ?(;Mion
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
"�a
"5 v
NH3-N (mg/1)
272,
D.O. (mg/l)ArIt
TSS (mg/1)
F. Col. (/100 ml)
pH (SU)
Comments:

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Webb Apartments
NC0023825
Domestic - 100%
Existing
Renewal
Little Northeast Creek
C
03-05-02
Onslow
Wilmington Regional Office
Jule Shanklin
11/18/91
I29NE
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Request # 6597
Stream Characteristic:
USGS #
1984
Date:
Drainage Area (mi2):
27.9
Summer 7Q10 (cfs):
1.3
Winter 7Q10 (cfs):
2.9
Average Flow (cfs):
40
30Q2 (cfs):
5.4
IWC (%):
2.9
Instream data shows low DO concentrations in the summer months (< 5.0) up- and downstream.of
facility. kD
ry
c_.
Special Schedule Requirements and additional comments from Reviewers: =
r. r
V
Recommended by: Date: /2 ` 3/ - 2/
Reviewed by
Instream Assessment:
Regional Supervisor:
Permits & Engineering:
FEB 13 1992
RETURN TO TECHNICAL SERVICES BY:
: I I � -,),

l
Fa
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/1):
Oil & Grease (mg/1):
TP (mg/1):
TN (mg/1):
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/1):
Oil & Grease (mg/1):
TP (mg/1):
TN (mg/1):
CONVENTIONAL PARAMETERS
Monthly Average
Summer
Winter
0.025
0.025
30
30
27.2
monitor
monitor
monitor
30
30
200
200
6.0-9.0
6.0-9.0
monitor
monitor
Monthly Average
Summer
Winter
0.025
0.025
30
30
27.2
monitor
monitor
monitor
30
30
200
200
6.0-9.0
6.0-9.0
monitor
monitor
Limits Changes Due To:
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
Other (onsite toxicity study, interaction, etc.)
Instream data
New regulations/standards/procedures
New facility information
WQ or EL
EL
WQ
EL
WQ
EL
Parameter(s) Affected
X Parameter(s) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed.
No parameters are water quality limited, but this discharge may affect future allocations.

3
INSTREAM MONITORING REQUIREMENTS
Upstream Location: 100 feet upstream of discharge point
Downstream Location: 0.5 miles downstream of discharge point
Parameters: Temperature, DO, Fecal Coliform, Conductivity
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Aftu acy of Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
Wasteload sent to EPA? (Major) (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes, explain with attachments.

Jium hx
LITTLE NORTHEAST CREEL{ AREA
----------
MODEL RESULTS ----------
Discharger
: WEBB APARTMENTS
'�Recieiving Stream : LITTLE NORTHEAST CREEK
----------------------------------------------------------------------
The End D.O.
is 3.53
mg/l.
The End CBOD
is 3.47
mg/l.
The End NBOD
----------------------------------------------------------------------
is 3.41
mg/l.
WLA
WLA
WLA
DO Min
CBOD
NBOD
DO
Waste Flow
(mg/1)
------
Milepoint Reach #
----------------
(mg/1)
----
(mg/1)
----
(mg/1)
--
(mgd)
----------
Segment 1
6.25
0.15 1
R ,3 ,� h L
5.00
18.00
5.00
0.04000
Segment 2
6.54
0.30 1
Reach 1
45.00
90.00
0.00
0.00750
}�
Segment 3 3.53 4.00 5
Reach 1
Reach 2
Reach 3
Reach 4
Reach 5
0.00
0.00
0.00
0.00000
0.00
0.00
0.00
0.00000
45.00
122.40
0.00
0.02500
45.00
90.00
5.00
0.02250 46-
0.00
0.00
0.00
0.00000

LITTLE NORTHEAST CREEK AREA
Seg # ; Reach # ; Seg Mi ; D.O. ; CBOD ; NBOD ; Flow ;
1 1 0.00 6.63 10.83 4.49 0.30
1 1 0.05 6.49 10.62 4.38 0.31
•1 1 0.10 6.37 10.41 4.26 0.31
1 1 0.15 6.25 10.21 4.16 0.31
2 1 0.00 6.86 3.13 3.34 0.44
2 1 0.10 6.74 3.06 3.22 0.44
2 1 0.20 6.63 3.00 3.09 0.45
2 1 0.30 6.54 2.93 2.98 0.45
3 1 0.00 6.42 5.91 3.46 0.76
3 1 0.10 6.28 5.74 3.31 0.78
3 1 0.20 6.15 5.57 3.16 0.79
3 1 0.30 6.04 5.41 3.02 0.80
3 1 0.40 5.94 5.26 2.89 0.81
3 1 0.50 5.86 5.11 2.77 0.83
3 1 0.60 5.79 4.97 2.65 0.84
3 1 0.70 5.72 4.83 2.54 0.85
3 1 0.80 5.67 4.70 2.43 0.861
3 1 0.90 5.63 4.57 2.33 0.88
3 1 1.00 5.59 4.45 2.24 0.89
3 1 1.10 5.56 4.33 2.14 0.90
3 1 1.20 5.54 4.22 2.06 0.91 V
3 1 1.30 5.53 4.11 1.97 0.93 V
6
3 1 1.40 5.51 4.00 1.90 0.94
3 1 1.50 5.51 3.90 1.82 0.95
3 1 1.60 5.51 3.80 1.75 0.96
3 1 1.70 5.51 3.71 1.68 0.98 V
Vv
3 1 1.80 5.51 3.62 1.62 0.99 n
3 1 1.90 5.52 3.53 1.56 1.00 f
3 2 1.90 5.72 3.33 1.48 1.15
i
3 2 2.00 5.73 3.25 1.43 1.16
3 2 2.10 5.73 3.18 1.38 1.18
3 2 2.20 5.74 3.11 1.33 1.19
3 3 2.20 5.56 4.43 5.15 1.23
3 3 2.30 5.38 4.33 4.94 1.24
3 3 2.40 5.21 4.22 4.74 1.25
3 3 2.50 5.05 4.12 4.54 1.26
3 3 2.60 4.90 4.03 4.36 1.28
3 3 2.70 4.77 3.93 4.18 1.29
3 4 2.70 4.78 5.02 6.44 1.32
3 4 2.80 4.56 4.90 6.18 1.34
3 4 2.90 4.37 4.78 5.92 1.35
3 4 3.00 4.18 4.67 5.68 1.36
3 4 3.10 4.02 4.56 5.45 1.37
3 4 3.20 3.87 4.45 5.23 1.39
3 4 3.30 3.73 4.35 5.02 1.40
3 4 3.40 3.60 4.25 4.82 1.41
3 5 3.40 4.05 3.96 4.32 1.62
3 5 3.50 3.94 3.87 4.16 1.63
3 5 3.60 3.84 3.78 3.99 1.65
3 5 3.70 3.75 3.70 3.84 1.66
3 5 3.80 3.67 3.62 3.69 1.67
3 5 3.90 3.60 3.54 3.55 1.68
3 5 4.00 3.53 3.47 3.41 1.70
Seg # ; Reach # ; Seg Mi ; D.O. ; CBOD ; NBOD ; Flow

�----- 1-1VLJJLJ aI VI Y iCa1a1 Laaiaa
Discharger : WEBB APARTMENTS Subbasin : 030502
Receiving Stream : LITTLE NORTHEAST CREEK Stream Class: C
Summer 7Q10 : 1.3 Winter 7Q10 : 2.9
Design Temperature: 28.
,LENGTH: SLOPE, VELOCITY DEPTH: Kd : Kd , Ka i Ka i KN i KN i KNR i KNR
: mile : ft/mi: fps ; ft ;design; @20° ;design; @200 ;design; @200 ;design; @200
-----------------------------------------------------------------------------------------------------
Segment 1 ; 0.15: 5.56: 0.100 ; 0.45 ; 0.34 ; 0.24 ; 1.19 ; 1.001 0.56 ; 0.30 ; 0.56 ; 0.00
Reach 1 i i i i i i i i i
--------------------------------------------------------------------------------------------------
Segment 2 ; 0.30: 3.701 0.100 ; 0.55 ; 0.32 ; 0.22 ; 0.79 ; 0.67: 0.56 ; 0.30 ; 0.56 ; 0.00
Reach 1 ' ' ' 1 11
-------------------------------------------------------------------------------------------------
(Segment 3 ; 1.90: 3.701 0.100 ; 0.77 ; 0.31 ; 0.22 ; 0.79 ; 0.67: 0.56 ; 0.30 ; 0.56 ; 0.00
Reach 1
----------------------------------------------------------------------------------------------------
Segment 3 : 0.30: 3.70: 0.100 , 0.88 , 0.31 : 0.21 , 0.79 : 0.671 0.56 : 0.30 : 0.56 , 0.00 ,
Reach 2 : i i i
Segment 3 : 0.501 1.67: 0.100 : 0.92 , 0.30 : 0.21 , 0.36 , 0.30: 0.56 , 0.30 : 0.56 : 0.00 :
Reach 3 , i i
----------------------------------------------------------------------------------------------
Segment 3 , 0.701 1.671 0.100 ; 0.95 ; 0.30 ; 0.21 ; 0.36 ; 0.301 0.56 ; 0.30 ; 0.56 ; 0.00
Reach 4 : , , ' ' ' ' ' '
-----------------------------------------------
Segment 3 : 0.601, 1.67: 0.100 : 1.05 , 0.30 , 0.21 , 0.36 , 0.30: 0.56 : 0.30 , 0.56 : 0.00 ,
Reach 5 1 i i i i i i i i
------------------------------------------------------------------------------------------
Flow ; CBOD ; NBOD ; D.O. ;
cfs ; mg/l , mg/l , mg/l :
Segment 1 Reach 1
Waste : 0.062 ; 45.000 ; 18.000 ; 5.000
Headwaters; 0.240 ; 2.000 ; 1.000 ; 7.050
Tributary ; 0.000 ; 2.000 ; 1.000 ; 7.050
* Runoff ; 0.070 ; 2.000 ; 1.000 ; 7.050
Segment 2 Reach 1
Waste ,
0.012 ;
45.000 ;
90.000 ;
0.000
Headwaters;
0.430 ;
2.000 ;
1.000 ;
7.050
Tributary ;
0.000 ;
2.000 ;
1.000 ;
7.050
* Runoff ;
0.030 ;
2.000 ;
1.000 ;
7.050
Segment 3 Reach 1
Waste ,
0.000
; 0.000 ;
0.000 ;
0.000
Headwaters;
0.000
; 2.000 ;
1.000 ;
7.050
Tributary ;
0.000
; 2.000 ;
1.000 ;
7.050
* Runoff '
0.125
; 2.000 ;._.1.000
,
7.050

Segment 3 Reach 2
Waste 0.000
0.000
0.000
0.000
Tributary 0.150
2.000
1.000
7.050
Runoff 0.125
2.000
1.000
7.050
Segment 3 Reach 3
Waste 0.039
45.000
:122.400
0.000
Tributary 0.000
2.000
1.000
7.050
Runoff 0.125
2.000
1.000
7.050
Segment 3 Reach 4
Waste 0.035
45.000
90-000
5.000
Tributary 0.000
2.000
1.000
7.050
Runoff 0.125
2.000
1.000
7.050
Segment 3 Reach 5
Waste 0.000
0.000
0.000
0.000
Tributary 0.210
2.000
1.000
7.050
* Runoff 0.125
2.000
1.000
7.050
Runoff flow is in cfs/mile
jT
A
A

DA 9
L,Z9 3Slz C.YEI'
,W= G. Z I
W7 5 -
I
LAS - I e
n1c e a ;� 3
1►..1 e h \p
,VC- sd 4lot1

r
- _te�n�.__Z._tv

°'-.a
' S �- - -4eC-01% s -_ car, -L cilc -ei.

!-
22.1
�
w-q
5
3
► . °t
4 . ?
7r-
5r o
Z
Z s
g'' ° ---- -- ----- ------
I
�

II
Ammonia/Chlorine Worksheet
II
IIFacility:
II
IlWebb Apartments
Permit Number:
NCO023825 II
IlReceiving Stream:
Modeler:
njb II
IlLittle Northeast Creek
II
Date:
18-Dec-91 II
II
II-------------------------------------
I I summer
I -------------------------------------II
I
I I
IlNitrogen as NH3
(Residual Chlorine
I
II
II
II
I) 7Q10
(cfs):
1.300
I 7010 (cfs):
1.300 II
II Design Flow
(MGD):
0.025
I Design Flow (MGD):
0.025 II
II Design Flow
(cfs):
0.039
I Design Flow (cfs):
0.039 II
II Stream STD
(mg/1):
1.000
I Stream STD (ug/1):
17.000 II
IlBackground level
(mg/1):
0.220
IBackground level (ug/1):
0.000 II
II IWC ($):
2.89
IWC M :
2.894 II
IlAllowable concentration
(Allowable concentration
II
II of NH3-N
(mg/1):
27.168
of Chlorine (ug/1):
587.323 II
II
(Allowable concentration
II
IlWinter
I of Chlorine (mg/1):
0.587 II
IlNitrogen as NH3
I
I
II
II
II
II 7010
(cfs):
2.900
I
II
II Design Flow
(MGD):
0.025
I
II
II Design Flow
(cfs):
0.039
I
II
II Stream STD
(mg/1):
1.800
I
I)
IlBackground level
(mg/1):
0.220
I
II
II IWC M :
1.319
I
II
IlAllowable concentration
I
II
II of NH3-N
II---------------------------------------------------------------------------II
(mg/1):
120.045
I
II