NC0061492_Wasteload Allocation_19930902

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO061492
PERMITTEE NAME: Maury Sanitary Land District
FACILITY NAME: Maury Sanitary Land District
Facility Status: Proposed
Permit Status: Renewal
Major
Pipe No.:
PI
Minor �I
Design Capacity: 0.225 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow): 0 %
Comments:
no change from last permit
RECEIVING STREAM: Contentnea Creek
Class: C-Swamp NSW
Sub -Basin: 03-04-07
Reference USGS Quad: F 28 NE
(please attach)
County: Greene
Regional Office: Washington Regional Office
Previous Exp. Date: 2/28/94 Treatment Plant Class: I
Classification changes within three miles:
No change
Requested b,
Prepared by:
Reviewed b}
I t' k
U-IFA eL, —11,,--
Date: 7- Z-, -V 3
Date: g i
Date:
� _414�-_
Modeler
Date Rec.
#
'� d5s
%SS3
Drainage Area (mil ) +33 Avg. Streamflow (cfs):Me pgc
7Q10 (cfs) 34 Winter 7Q10 (cfs) 6c 30Q2 (cfs) ►off
Upstream Location: Hwy 123
Downstream Location: Approximately 4 miles downstream, (by boat)
from Hwy 123
Parameters: Temperature, DO, Fecal Coliform, Conductivity
Once per week during June, July, and August; Twice per month the rest of
the year
Dissolved Oxygen instream monitoring should be water column profile, (top,
middle, bottom)
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/I):
Oil & Grease (mg/1):
TP (mg/1):
TN (mg/1):
Monthly Average
Summer Winter
0.225
13.0
26.0
3.0
6.0
6.0
6.0
30.0
30.0
200
200
6-9
6-9
28.0
28.0
nr
nr
2.0
2.0
monitor
monitor
"According to preliminary modeling analysis, field observations, and ambient
water quality data, the assimilative capacity of Contetnea Creek is compromised.
This subbasin is being targeted for extensive studies prior to the next basin
permitting cycle of 1998. The oxygen consuming limitations were developed from
a combination of Level B modeling and best professional judgment given the
available water quality data and proposed treatment works. Instream monitoring
requirements include water column profiles to document substandard DO
concentrations at the DO sag." [1992 Fact s►ma]

za - =Cerra_
20
------ .----- / I� -- ��._ •_�- . _ — --- �. � \ � �. i- �. Jam- j % r �;�.� �i . ti.i "7-- \i �i
.4411
23
—_-' =;�,= � -• � : I ' tl � : 1. ''� . / - ' ' • / ,
24.5 . I -- - -� Ir Dupree \ •!, �.� �� %_�
-
23
•`' '--. Cem•. �J
21.5
Gravd
J}. r 1 .:Cem ,
--- — Cem.
•East Greene - East I Cem,
23.0
// � ���j• . �� . , , � ` y '•Cem � `� _z`r_
Cem
- old =. Maury Sanitary Land District
�. NCO061492
3 / _ — -- - --- -- Discharge Point:
Latitude: 35028,40"
3 Longitude: 77035'10"
l 13.r14 He
4.
-
I' .Cem --- 123, / ^`� Cem
Cem V'
':Cem. — — — —
- _ - u° g�j Cem II.
\ ;: ,r• 12.2 Antioch
Cem
Fou y "`� Ch
10
4�.,�
_ "TT
:�� Sewage -Disposal
r
_ -
•
O a h

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
Maury Sanitary Land District
NCO061492
Domestic - 100%
Existing
Renewal
Contetnea Creek
C -Swamp NSW
03-04-07
Greene
Washington
Kepler
7/21/93
F28NE
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Request #
RLCEIVc-_
WASHINGTON OFFICE
AUG 1 B 1993
7553 D. E rd.,
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
02.0915.0200
1987
733
34
60
880
103
1.0 %
Due to the change over to the new plant in September, the previously modeled limits will be applied with a request
for Region input once the new plant is on-line. This creek is slated for additional, special studies and improvements
such as this upgrade need close tracking and documentation.
Instream DO's not take along w/ temperature - both parameters need to be taken in conjunction
"According to preliminary modeling analysis, field observations, and ambient water quality data, the assimilative
capacity of Contetnea Creek is compromised. This subbasin is being targeted for extensive studies prior to the next
basin permitting cycle of 1998. The oxygen consuming limitations were developed from a combination of Level B
modeling and best professional judgment given the available water quality data and proposed treatment works.
Instream monitoring requirements include water column profiles to document substandard DO concentrations at the
DO sag." [1992 Fact Sheet]
Special Schedule Requirements and additional comments from Reviewers:
Recommended by: -iny- �- -�, Date: 3 A oci u sr . )9 Q3
Farrell Keough
Reviewed by
s
Instream Assessment: Date: _1 1 1�3
Regional Supervisor: Date: -F��
i
Permits & Engineering: Date:
5 E P 0 9 1993
RETURN TO TECHNICAL SERVICES BY:

2
Existing Limits:
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):
Recommended Limits:
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
0.225
13.0
26.0
3.0
6.0
6.0
6.0
30.0
30.0
200
200
6-9
6-9
28.0
28.0
nr
nr
2.0
2.0
monitor
monitor
Monthly Average
Summer
Winter
0.225
13.0
26.0
3.0
6.0
6.0
6.0
30.0
30.0
200
200
6-9
6-9
28.0
28.0
nr
nr
2.0
2.0
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
WQ
wQ
WQ
EL
Is'
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.
[sue
No parameters are water quality limited, but this discharge may affect future allocations.

INSTREAM MONITORING REQUIREMENTS
Upstream Location: Hwy 123
Downstream Location: Approximately 4 miles downstream, (by boat) from Hwy 123
Parameters: Temperature, DO, Fecal Coliform, Conductivity
Special instream monitoring locations or monitoring frequencies:
Once per week during June, July, and August; Twice per month the rest of the year
Dissolved Oxygen instream monitoring should be water column profile, (top, middle, bottom)
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adequacy 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?
Special Instructions or Conditions
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.

I Facility Name:
Maury Sanitary Land District
Permit Number:
NCO061492
Engineer:
Kepler
Subbasin:
03-04-07
Recieving Stream:
Contetnea Creek
USGSquad #:
F28NE
Request Number:
7553
Date:
7/21 /93
Expiration date:
2/28/93
Comments
Existing WLA checked: x
Staff Report: x
Topo checked:. x need to verify discharge point
USGS Flows confirmed: 02.0915.0200 '87
PIRF / APAMS: nr
IWC Spreadsheet: x
Stream Classification: x
Nutrient Sensitivity: x
Instream Data: x effluent DMR's very spotty
History
Central Files: Correspondence and DMR's
Conversation w/ Scott Jones 8/3/93: DMR's reflect "old" plant, [three celled lafoon and 'post' -chlorination]. Their new plant
will come on line in September.
Effluent DMR's 5/90 to 1/92 : " No Overflow Into Stream"
Lagoon detention time calculated to be 2,788 days (staff Report 1114l92AIHodge)
Compliance letter [6/22/93] "It is recognized that given the nature of your system, there is little that can be done to prevent
BOD and TSS violations. As indicated by Mr. Jones at the time of inspection, the new plant is scheduled to be
on-line in September, 1993."
Due to the change over to the new plant in September, the previously modeled limits will be applied with a request on the
Fact Sheet for Region input once the new plant is on-line. This creek is slated for additional, special studies and
improvements such as this upgrade need close tracking and documantation.
Note on Fact Sheet: Instream DO's not take along w/ temperature - both parameters need to be taken in conjunction
Pretreatment
Conversation w/ Scott Jones 8/3/93: the Correctional Facility tieing -on has no shop or facilities which would constitiute
anything more than domestic waste. Maury itself has no businesses that would constitute any parameters of
concern.
Instream Monitoring
Distance between Hwy 123 and SR 1004 is approx. 7 1/2 miles. Model DO sag is approx. 4 miles downstream from
outfall. Will continue to request downstream monitoring to take place approx. 4 miles downstream by boat. If Coalition
monitoring goes through, and Maury accepts participation within it, the Coalition will monitor at SR 1004. This needs to be
recognized during the study data interpretation - I've mentioned this to Juan.
Fact Sheet Language
"According to preliminary modeling analysis, field observations, and ambient water quality data, the assimilative capacity
of Contetnea Creek is compromised. This subbasin is being targeted for extensive studies prior to the next basin
permitting cycle of 1998. The oxygen consuming limitations were developed from a combination of Level B modeling and
best professional judgment given the available water quality data and proposed treatment works. Instream monitoring
requirements include water column profiles to document substandard DO concentrations at the DO sag." 11992 Fact Sheet]

�l
14n�;
9
I
M14
❑9
zd
t6
a
Turkey Creek at SR 1128 [headwaters of Buckhome Reservoir]
CContentnea Creek at ontentnea Creek at 301below ofDOsag Reser l) r Dam (headwaters below rservoor)
SR 1622
Contantnea Creek at NC 58, near Stantonsburg
Contentnea Creek at US 13 / 258 [Proposed Ambient Station]
Contentnea Creek at NC 123 (Ambient Station 02.0915.00001
Contentnea Creek at SR 1
Contentnea Creek at Hwy 118 [Ambient Station 02.0917.6690]
Contentnea Creek at mouth
© Little Contentnea at SR 1218 [Interaction
Little Contentnea at US 264 [Interaction: bient Station 02.0917.00001
Little Contentnea at SR 1110 [mouth]
Mocassin Creek at SR 1131; mouth [Proposed Ambient Station, headwaters of Buckhome Reservoir]
Nahunta Swamp at NC 58 [mouth] (major tributary)
Toisnot Swamp at NCSR 1539 [mouth] (major tributary)
Taylors Mill Pond impacts
I

SOC PRIORITY PROJECT: Yes __ No �__
If Yes, SOC No.
To: Permits and Engineering Unit
Water Quality Section
Attention: Randy Kepler f` 1495
Date July 8. 1993 TECHIKAL SUPPORT BUNM
NPDES STAFF REPORT AND RECOMMENDATION
County Greene
Permit No. NCO061492
PART I - GENERAL INFORMATION
1. Facility and Address: Maury Sanitary Land District
Post Office Box 41
Maury, NC 28554
2. Date of Investigation: June 18, 1993
3. Report Prepared by: Scott Jones 0<6—
4. Persons Contacted and Telephone Number:
Julian Jones, ORC [phone]
5. Directions to Site: The facility is located approximately 0.5 miles south of the
intersection of NCSR 1400 and NCSR 1401 in Greene County.
6. Discharge Point(s), List for all discharge points:
Latitude: 35' 28' 40"N Longitude: 77' 35' 10"W
Attach a USGS map extract and indicate treatment facility site and discharge point on map.
U.S.G.S. Quad No.
NPDES Permit Staff Report
Version 10/92
U.S.G.S. Quad Name Hookerton
Page 1

7. Site size and expansion area consistent with application ?
X Yes No If No, explain:
8. Topography (relationship to flood plain included): The site is approximately 15 feet
above mean sea level.
9. Location of nearest dwelling: The closest residence is approximately 0.5 miles from
the facility.
10. Receiving stream or affected surface waters: Contentnea Creek
a. Classification: Class C-SWP, NSW
b. River Basin and Subbasin No.: Neuse 07
C. Describe receiving stream features and pertinent
downstream uses: Recreational fishing and aquatic life propagation
PART H - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of waste water to be permitted: 0.225 MGD(Ultimate Design Capacity)
b. What is the current permitted capacity of the Waste Water Treatment facility?
0.065 MGD
C. Actual treatment capacity of the current facility (current design capacity)? The
current design capacity of the facility is 0.065 MGD. However, the facility has
applied for and received an Authorization to Construct for a new treatment system
which will have a design capacity of 0.225 MGD.
d. Date(s) and construction activities allowed by previous Authorizations to
Construct issued in the previous two years:
12/ 14/92 0.225 MGD Treatment Works
e. Please provide a description of existing or substantially constructed wastewater
treatment facilities: The existing facility consists of a three cell lagoon,
effluent pump station, and force main.
f. Please provide a description of proposed wastewater treatment facilities: The
new facility will consist of an oxidation ditch, dual clarifiers, chemical feed,
chlorination, post aeration and sludge digestion. This facility is under
construction at the same site and is scheduled to be on line in September of
this year.
NPDES Permit Staff Report
Version 10/92
Page 2

g. Possible toxic impacts to surface waters: None
h. Pretreatment Program (POTWs only): NA
in development approved
should be require not needed
2. Residuals handling and utilization/disposal scheme: See Part IV
a. If residuals are being land applied, please specify DEM permit no.
Residuals Contractor
Telephone No.
b. Residuals stabilization: NA PSRP PFRP Other-
C
. Landfill: NA
d. Other disposal/utilization scheme (Specify): NA
3. Treatment plant classification (attach completed rating sheet): Class II
4. SIC Code(s): 9390
Wastewater Code(s)
Primary 01 Secondary
Main Treatment Unit Code: 102 0
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public
monies involved. (municipals only)? Yes
2. Special monitoring or limitations (including toxicity) requests: NA
3. Important SOC, JOC or Compliance Schedule dates: (Please indicate) NA
Date
Submission of Plans and Specifications
Begin Construction
Complete Construction
4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge
options available. Please provide regional perspective for each option evaluated.
Spray Irrigation: Appropriate land area is not available.
NPDES Permit Staff Report
Version 10/92
Page 3

Connection to Regional Sewer System:
Subsurface: Not practical based on flow.
Other disposal options: None
5. Other Special Items: None
Existing facility serves as regional sewer
for surrounding community.
PART IV - EVALUATION AND RECOMMENDATIONS
This facility has received an Authorization to Construct (December 14, 1992) a new
treatment system with an ultimate design capacity of 0.225 MGD. This new facility
is under construction and is scheduled to be on line in September, 1993.
Currently, it is unclear as to the ultimate sludge disposal of the new facility. MSLD
proposes to waste sludge to existing lagoon. The detention time for the lagoon has
been calculated at 2788 days. A provision for additional information on this matter
was requested in the A to C for the new plant (see item B page 2 of A to C -
attached).
It is recommended that NPDES Permit NCO061492 be renewed for Maury Sanitary
Land District's Waste Water Treatment Plant. This issuance should coincide with the
permitting cycle for the Neuse River Basin.
Signature of report preparer
&,= l� 2& .,_.
Water Quality Regional Supervisor
71'�-,-I�
Date
NPDES Permit Staff Report
Version 10/92
ytAfF ?OK
Page 4