NC0062855_Permit Modification_20050506

Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
May 6, 2005
Mr. James R. Britt, Jr.
Town Administrator
Town of Robbins
P.O. Box 296
Robbins, North Carolina 27325
Subject: NPDES Permit Modification
Permit Number NCO062855
Robbins WWTP
Moore County
Dear Mr. Britt:
The Division issued NPDES permit NCO062855 to the Town Of Robbins on May 21, 2002. The Division
has received your January 24, 2005 proposal for permit modification at the subject facility.
In your letter, you requested phased limits for your facility including both 1.3 MGD and 0.5 MGD flow
limits and the corresponding requirements.
In accordance with your permit modification request and our review, the Division is forwarding herewith a
modification to the subject permit. Enclosed please find the modified permit pages. These pages should be inserted
into your permit and the old ones discarded. This pemrit modification is issued pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.
Environmental Protection Agency dated May 9, 1994 (or as subsequently amended).
Please take notice that this permit is not transferable. This permit does not affect the legal requirement 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 government permit that may be
required.
If you have any questions concerning this permit, please contact Mrs. Dawn Jeffries at telephone number
[phone], extension 595.
Sincerely,
ORIGINAL SIGNED BY
Mark McIntire
Alan W. Klimek, P.E.
Enclosure: Permit Modification
cc: Fayetteville Regional Office, Water Quality
Aquatic Toxicology Unit
Central Files
NPDES Permit File
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE [phone]/FAX [phone]
VISIT US ON THE WEB AT http://h20.enr.state.nc.us/NPDFS

Permit Na062855
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions 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, the
Town of Robbins
is hereby authorized to discharge wastewater from a facility located at the
Robbins Wastewater Treatment Plant
NC Highway 705 near Robbins
Moore County
to receiving waters designated as the Deep River in the Cape Fear 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 June 1, 2005.
This permit and authorization to discharge shall expire at midnight on March 31, 2006.
Signed this day May 62 2005.
ORIGINAL SIGNED BY
Mark McIntire
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental dement Commission

Permit Na062855
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this
permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive
authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and
provisions included herein.
The Town of Robbins is hereby authorized to:
1. Continue to operate (at a reduced flow of 0.5 MGD) an existing 1.3 MGD
wastewater treatment facility consisting of the following components:
➢ Influent sputter box
➢ Two aeration basins with fine air diffusers and center clarifiers
➢ Dual train gas chlorination basin
➢ Dechlorination basin
➢ Two ultrasonic flow meters
➢ Primary digestion / holding tank
➢ Secondary aerobic digester with bubble diffusers
➢ Standby generator
This facility is located at the Robbins Wastewater Treatment Plant off
I[ighway 705 near Robbins in Moore County.
2. Upon receiving written authorization from the Division of Water Quality,
increase flow and operate facility at 1.3 MGD design flow.
3. Discharge from said treatment works at the location specified on the attached
map into the Deep River, classified GHQW waters in the Cape Fear River
Basin.

Permit Na062855
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until the Division of Water
Quality grants written authorization to increase the facility's flow limit, the Permittee is authorized to
discharge from outfall 001. Such discharges shall be limited and monitored bythe Permittee as specified
below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Locationl
FIoW2
0.5 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day, 20°C3
21.0 mg/L
31.0 mg/L
Weekly
Composite
Influent and Effluent
Total Suspended Solids3
21.0 mg/L
31.0 mg/L
Weekly
Composite
Influent and Effluent
NH3 as N
6.0 mg/L
18.0 mg/L
Weekly
Composite
Effluent
Dissolved Oxygen4
Weekly
Grab
Effluent,
Up stream & Downstream
pH5
Weekly
Grab
Effluent
Temperature °C
Daily
Grab
Effluent,
Upstream & Downstream
Fecal Coliform
(geometric mean
200/ 100 ml
400/100 ml
Weekly
Grab
Effluent
Total Residual Chlorine
28 pg/I
2/Week
Grab
Effluent
Conductivity
Weekly
Grab
Effluent
Oil & Grease
30.0 mg/L
Weekly
Grab
Effluent
Total Nitrogen
(NO2+NO3+TKN)
Monthly
Composite
Effluent
Total Phos horus6
2.0 mg/L
Weekly
Composite
Effluent
Total Mercury
Monthly
Composite
Effluent
Total Cyanide
Monthly
Grab
Effluent
Total Copper
Monthly
Composite
Effluent
Total Zinc
Monthly
Composite
Effluent
Chronic Toxic'v
0uarterly
Composite
Effluent
Notes:
I. Upstream = at NCSR 1456. Downstream = at High Falls Dam (above NC Highway 22 bridge). Upstream and
downstream samples shall be grab samples collected weekly.
2. When the most recent 12 month flow average is 90% of permitted flow (0.45 MGD), permittee shall send written
request to the Division of Water Quality to operate under the 1.3 MGD permit effluent page.
3. The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the
respective influent value (85% removal).
4. The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/L
5. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
6. Compliance shall be based upon a quarterly average of weekly samples.
7. Chronic Toxicity (Ce wdaphrca) limit at 4% with testing in January, April, July and October (see A. (3)).
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0062855
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS -FINAL
During the period beginning upon written authorization by the Division of Water Quality to increase flow
and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall
be limited and monitored by the Permittee as specified below.
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Locationt
Flow
1.3 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day, 20'C2
21.0 mgrL
31.0 mg/L
31Week
Composite
Influent and Effluent
Total Suspended Solids2
21.0 mg/L
31.0 mg/L
3/Week
Composite
Influent and Effluent
NH3 as N
6.0 mg/L
18.0 mg/L
3/Week
Composite
Effluent
Dissolved Oxygen3
3Meek
Grab
Effluent,
Up stream & Downstream
pH4
Week
Grab
Effluent
Temperature °C
Daily
Grab
Effluent,
Upstream & Downstream
Fecal Coliform
(geometric mean
2001100 ml
400/100 ml
3/Week
Grab
Effluent
Total Residual Chlorine
28 Ng/I
Meek
Grab
Effluent
Conductivity
3/Week
Grab
Effluent
Oil & Grease
30.0 mg/L
Weekly
Grab
Effluent
Total Nitrogen
(NO2+NO3+TKN)
Monthly
Composite
Effluent
Total Phos horus5
1.0 mg/L
Weekly
Composite
Effluent
Total Mercury
Month
Com lit
Effluent
Total Cyanide
MonthlyGrab
Effluent
Total Copper
Monthly
Composite
Effluent
Total Zinc
Monthly
composite
IEffluent
Chronic Toxicity6
Quarterly
Composite
IEffluent
Notes:
1. Upstream = at NCSR 1456. Downstream = at high Falk Dam (above NC Highway 22 bridge). Upstream and
downstream samples shall be grab samples collected 3/week during June, July, August and September, and weekly
during the rest of the pear.
2. The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the
respective influent value (85% removal).
3. The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/L
4. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
5. Compliance shall be based upon a quarterly average of weekly samples.
6• Chronic Toxicity (Ceriokplirua) limit at 10% with testing in January, April, July and October (see A. (4)).
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC3062855
SUPPLEMENT TO EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A. (3.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Gxix*brriu dubia at an effluent concentration of 4 %.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina C r ak lmi C11ronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or "North
Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
The tests will be performed during the months of January, April, July, and October. Effluent sampling for this
testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or C hV below the
permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two
following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does have
a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection methods,
exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring
Form (MR 1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results
and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the following address:
Attention: NC DENR DWQ / Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days
after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total
residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection
of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the
pemmittee will complete the information located at the top of the aquatic toxicity (Al) test form indicating the facility
name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the
comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited
above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include
alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid
test and will require immediate follow-up testing to be completed no later than the last day of the month following the
month of the initial monitoring.

Permit NCO062855
SUPPLEMENT TO EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A. (4.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ce iako? is dubia at an effluent concentration of 10 %.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina Geialapbrria Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or "North
Carolina Phase H Chronic Whole Effluent Toxicity Test Procedure" (devised -February 1998) or subsequent versions.
The tests will be performed during the months of January, April, July, and October. Effluent sampling for this
testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the
permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two
following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does have
a detectable impairment of reproduction or survivaL The definition of "detectable impairment," collection methods,
exposure regimes, and further statistical methods are specified in the "North Carolina Phase H Chronic Whole Effluent
Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring
Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results
and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the following address:
Attention: NC DENR DWQ / Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days
after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total
residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection
of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the
permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility
name, permit number, pipe number, county, and the month/year of the report with the notation of "No Floe in the
comment area of the form The report shall be submitted to the Environmental Sciences Branch at the address cited
above.
Should the permiittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include
alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid
test and will require immediate follow-up testing to be completed no hater than the last day of the month following the
month of the initial monitoring.

AFFIDAVIT OF PUBLICATION
NORTH• CAROLINA
Cumberland County
Public Notice
STATE OF
NORTNCAROLINA
ENVIRONMENTAL
MANAGEMENT
COMMISSION DES UNIT
I617 MAIL SFAWCE
CENTER
RALEIGH,NC276 4617
NOTIFICATION OF INTENT
TO ISSUE A NPDES
WASTEWATER PERMIT
Do We basis of Norough
uaH rtv,c v Po° aootiwriou
agement suc a Nwio
poses m issue Na.,
ul oo Dischargge FJimi
S-hoI (NPDFS) waste
,,oc (ge ool t h
fi t. 45a) 1 I below
five Id doge fi I the
Usb talc Mills Pai¢.
wdluoI eommeme `cgI
the Pmo° oi D . t ,
8=m Inc mICRSL
CYolb of we dmfi
mavon Pn Ann .
mwe c®Uitio Pro'^
UreM Atafi Pem6l aze p+
of Ne cmustof re°mu,t
commissioned and authorized to administer oaths, affirmations, etc.,
personally appeared. CINDY L. OROZCO
Who, being duly sworn or affirmed, according to law, doth depose and say
that he/she is LEGAL SECRETARY
of THE FAYETTEVILLE PUBLISHING COMPANY, a corporation organized
and doing business under the Laws of the State of North Carolina, and
publishing a newspaper known as the FAYETTEVILLE OBSERVER, in the
City of Fayetteville, County and State aforesaid, and that as such he/she
makes this afficdavit; that he/she is familiar with the books, files and
business of said Corporation and by reference to the files of said
publication the attacdhed advertisement of CL Legal Line
TOWN OF ROBBINSHNCO062855
of NCDENR,
was inserted in the aforesaid newspaper in space, and on dates as follows:
3/4/2005
id at the time of such publication The Fayetteville Observer was a
lwspaper meeting all the requirements and qualifications prescribed by
;c. No. 1-597 G.S. of N.C.
The above is correctly copied from the books and files of the aforesaid
rporation and publication.
Sworn or affirmed to, and subscribed before me, this 7 day
March, A.D., 2005.
°' °' io `"` . d. In Testimony Whereof, I have hereunto set my hand and affixed my
.:. m .:. iM, a ion
The Town M Robhins_ P n official seal, the day and year aforesaid.
W_
aaI
Notary Public
commission expires 5th day of DECEMBER, 2005.
wYw,s
wa¢e-
sv7W3 MAILTO: NCDENR,
1617 MAIL SERVICE CENTER, ,
RALEIGH, NC 27699
0000597903
0•6

Town of Robbins, NPDES Permit No. NCO062855
Subject: Town of Robbins, NPDES Permit No. NCO062855
Date: Mon, 4 Apr 2005 16:16:41 -0400
From: 'Blackwell, Nadine" <[e-mail]>
To: "'dawn [e-mail]"' <dawn [e-mail]>
This is a follow-up to our conversation on March 28, concerning
clarification as to when the Town will be required to monitor in accordance
with the 1.30 MGD limits page. It is my understanding that you will include
a footnote which will require the Town to change to the 1.30 MGD limits page
when the 12-month average exceeds 90% of the permitted flow of 0.500 MGD.
This change will be included when the permit is issued in May with an
effective date of July 1, 2005. If this is inaccurate, please let me know.
of 1 4/5/2005 7:35 AM

Draft Permit reviews (3)
Subject: Draft Permit reviews (3)
Date: Wed, 23 Mar 2005 16:06:25 -0500
From: John Giorgino <[e-mail]>
To: Dawn Jeffries <[e-mail]>
Hi Dawn, I have reviewed the following permits:
NCO062855 Robbins WWTP
NCO026042 Robersonville WWTP
NCO058548 Star WWTP
No comments. Thanks for forwarding them
-John
John Giorgino
Environmental Biologist
North Carolina Division of Water Quality
Environmental Sciences Section
Aquatic Toxicology Unit
Mailing Address:
1621 MSC
Raleigh, NC 27699-1621
Office: 919 733-2136
Fax: [phone]
Email: [e-mail]
Web Page: http://www.esb.enr.state.nc.us
1 Of 1 3/24/2005 7:02 AM

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO062855
Facility Information
Applicant/Facility Name:
Town of Robbins/ Robbins WWTP
Applicant Address:
P.O. Box 296, 101 N. Middleton St., Robbins, NC 27325
Facility Address:
Sewer Plant Road; Robbins, North Carolina 27325
Permitted Flow
1.3 MGD; Requesting tiered flows of 0.5 MGD and 1.3 MGD
Type of Waste:
Domestic and industrial
Facility/Permit Status:
Class III /Active; Modification
County:
1 Moore County
Stream Classification: I C HQW I State Grid / USGS Quad: F20NE/Robbins
303(d) Listed? No Permit Writer: Dawn Jeffries
Subbasin: 03-06-10 Date: February 22,2005
Drainaee Area (miz): 790
7Q10 (cfs) 1 18.7
30Q2 (cfs) 40.5
Average Flow cfs): 806
IWC (%): 9.7% @ 1.3 MGD
4.0%@0.5MGD
BACKGROUND
The Robbins WWTP (Class 1H) has a permitted flow of 1.3 MGD. The permit was last issued on
May 21, 2002 and expires March 31, 2006. The Permittee has requested several modifications to
their permit as a result of the recent loss of the town's largest industrial user. The Town is
requesting that the permit be modified to a tiered permit allowing a lower flow of 0.5 MGD and a
higher flow of 1.3 MGD (their current flow). They have also requested we remove the limits for
mercury and total phosphorus.
Flow:
In July of 1999 the permitted flow for the Robbins WWTP increased from 1.0 MGD to 1.3 MGD
to accommodate demand_ Perdue Farms, the town's largest industrial user, had a permitted
industrial flow of 0.82 MGD and an average flow of 0.72 MGD. In January 2003, Perdue ceased
production at this facility. Their discharge to the town's WWTP was eliminated and average
flows from the Robbins WWTP have dropped dramatically. From 2000 to 2004 average annual
flows were as follows:
• 2000 — 0.86 MGD
• 2001 — 0.70 MGD
• 2002 — 0.51 MGD
• 2003 — 0.25 MGD
• 2004 — 0.23 MGD
The Town requests to have a first tier with a 0.5 MGD flow limit. Given the flow data of the past
two years, this would seem to be enough to meet current need. The Town also requests to keep
the current flow limit as a second tier as the plant has been recently built to handle 1.3 MGD and
the town does hope to use this capability in the future.
Fact Sheet
NPDGS NC0062855 Modification
Paec 1

Mercury
The town began using method 1631 for mercury analysis in September 2003. Since they monitor
weekly, this provided 70 data points for a reasonable potential analysis. The RPA indicated no
reasonable potential to exceed stream standards at either the 1.3 MGD or the 0.5 MGD flow
limits.
Total Phosphorus
Although the Deep River is not listed as impaired on the 2002-303(d) list, the basin plan does
indicate that impounded segments of the river near Carbonton can be periodically affected by low
dissolved oxygen due to algal blooms. For this reason, TP limits have been required in permits
of new and expanding dischargers in this area. For facilities expanding to 0.5 MGD or greater
(up to 1.0 MGD) a 2.0 mg/1 limit has been required, and for facilities expanding to 1.0 MGD or
greater a 1.0 mg/1 limit has been given. Robbins WWTP currently has a limit of 1.0 mg/1 for TP
and has consistently met this limit. A 2.0 mg/1 limit will also be included in the 0.5 MGD
effluent page.
SUMMARY OF PROPOSED CHANGES
In keeping with Division policies, the following will be incorporated into the permit:
• The permit will be constructed as a tiered permit with flows of 0.5 MGD and 1.3 MGD
• The mercury limit will be removed, monitoring will still be required at both flows
• Total Phosphorus limits will be maintained at 1.0 mg/1 for the 1.3 MGD flow and will be 2.0
mg/1 for the 0.5 MGD flow
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
NPDES DIVISION CONTACT
March 2, 2005
April 25, 2005
If you have questions regarding any of the above information or on the attached permit, please contact
Dawn Jeffries at [phone] ext. 595.
NAME: DATE: 07'o%g'65
REGIONAL OFFICE COMffNTS
NAME. DATE:
SUPERVISOR• DATE:
Fact Sheet
\PDES `CO062855 Modification
Page 2

REASONABLE POTENTIAL ANALYSIS
Mercury
Date Data
BDL=1/2DL
Results
1
2
Sep-2003.° 0.002
0.0016
Std Dev.
0.0039
3
-' + 0.002
i
0.0016
Mean
033
0.0978
4
0.0025
C.V.
5
r0.002
r„0.001
'�
0.0006
n
70
0.002
0.0023
6
7
.<y 0.001
0,0005
Mult Factor =
2.1300
8
0.002
0.0019
Max. Value
0.0274
9
0.002
0.0018
Max. Fred Cw
0.0584
0.011
0.0110
10
0.004
0.0035
t
0.002
0.0016
1 2
0.002
0.0017
13
0.003
0.0027
14
0,003
0,0027
15
:a 0.002
0.0022
16
0.027
0.0274
17
0.002
0.0020
18
0.002
0.0017
19
Jan-2004 0.012
0.0116
20
0.002
0.0015
21
0.002
0.0019
22
0.003
0.0027
23
0.003
0.0029
24
= 0.002
0.0022
25
0.002
0.0024
26
0.002
0.0020
27
0.002
0.0025
28
- 0.001
0.0005
29'
0.002
0.0023
30
_ 0.001
0.0012
31
0.006
0.0056
32
- 0.002
0.0020
33
0.004
0.0035
34
35
,' 0.001
4-
0.0012
0.001
0.0010
36
0.002
0.0021
37
0.001
0.0013
38
0.002
0.0023
39
0.002
0.0018
40
0.002
0.0017
41
0.002
0.0020
42
0.002
0.0018
43
0.002
0.0016
44
0.005
o.00a7
as
0.002
0.0016
46
_ 0.002
0.0017
47
0.002
0,0021
48
0.002
0.0016
as
ryt 0-002
0.0018
50
5wt 0.001
0.0013
51
`-'� 0.001
0.0005
52
0.002
0.0018
53
'. 0.001
0.0015
54
.' 0.003
0.0028
55--')
0.003
0.0031
56
si 0.003
0.0028
57''-
0.007
0.0066
58
�:'; 0.004
0.0042
59=4
0.009
0.0091
60"-1
0.010
0.0096
61
`.�: 0.003
0.0028
62
0.002
0.0019
63
I"1 0.003
0.0030
64
0.002
0,0025
65
0.004
0.0043
66
0.006
0.0059
67
-' 0.003
0.0027
68
0.015
0,0149
69
_-
0.002
0.0018
70
? 0.003
0.0030
199
200
-9- nodes rna i z .ice a..._

REASONABLE POTENTIAL ANALYSIS
Robbins WWTP
NCOO62855
Time Period
0
Qw (MGD)
0.5
7010S (cfs)
18.7
7010W (cfs)
0
3002 (cfs)
0
Avg. Stream Flow, QA (cfs)
0
Rec'ving Stream Deep River
WWTP Class fi
lWC r1o) @ 7010S 3.9795
@ 701OW NIA
@ 30Q2 NIA
@ QA NIA
Stream Class C HOW
Outfall 001
Qw=0.5MGD
PARAMETER
TYPE
(i)
STANDARDS &
CRITERIA (2)
PQL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WOS/ % FAY
a t Det NRX PW CW AC 02W CW
chradc Acute
Mercury
NC
0.012
0.0002
ug/L
70 67
0.0584
Acute: N/A
/Q
_ _ _
Chronic 0.3015
".
h
Legend.
C = Carcinogenic
NC = Non -carcinogenic
A = Aesthetfc
Freshwater Discharge
npdes rpa 2004031.x1s, rpa
2/21/2005

p
w �
REASONABLE POTENTIAL ANALYSIS
Robbins WWTP
NCO062855
Time Period
0
Ow (MGD)
1.3
7010S (cfs)
18.7
701OW (cfs)
0
3002 (cfs)
0
Avg. Stream Flow, QA (cfs)
0
RecVing Stream Deep River
WWTP Class II
1WC (%) @ 7010S 9.7273
@ 701OW N/A
@ 3002 N/A
@ QA N/A
Stream Class C HQW
Outfall 001
Qw=1.3MGD
PARAMETER
TYPE
it)
STANDARDS &
CRITERIA (2)
PQL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC was / Yj FAV/
n # oet Max Prod Cw Aftowable Cw
Omit Acute
Acute: N/A
Mercury
NC
0.012
0.0002
ugfL
70 67
0.0584
_—_ —_---—_—_---_—_----
Chronic: 0.1234
Legend:
C = Carcinogenic
NC = Non -carcinogenic
A =Aesthetic
•• Freshwater Discharge
npdes rpa 1.3.xis, rpa
2/21/2005

Permit Vereio Facility County
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NG0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0002855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins-Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbin- Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins-Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
NC0062855 2.10 Town of Robbins-Robbin Moore
NC0062855 2.10 Town of Robbins - Robbin Moore
Region
Outfall
Month
Day
Year Comment
Parameter Param Class Sample UoM
Fayetteville
001
9
1
2003
71900-Mercur Metal
Compositt ug/I
Fayetteville
001
9
5
2003
71900-Mercor Metal
Composite ug/I
Fayetteville
001
9
11
2003
71900-Mercui Metal
Compositt ugrl
Fayetteville
001
9
17
2003
71900 - Mercut Metal
Compositt UO
Fayetteville
001
9
24
2003
71900-Mercw Metal
Composite ug/l
Fayetteville
001
9
30
2003
71900 - Memut Metal
Composite ug/l
Fayetteville
001
10
1
2003 <0.00100
71900-Memw Metal
Composite ug/l
Fayetteville
001
10
8
2003 <0.00100
71900-Mercw Metal
Composit ug/I,
Fayetteville
001
10
13
2003 <0.00100
71900-Memur Metal
Composite ugA
Fayetteville
001
10
17
2003 <0.00100
71900-Memut Metal
Composite u9/1
Fayetteville
001
10
22
2003 <0.00100
71900-Mercui Metal
Composite ugn
Fayetteville
001
10
29
2003 <0.00100
71900-Mercui Metal
Compositt ugrl
Fayetteville
001
11
5
2003
71900-Mercor Metal
Grab ugA
Fayetteville
001
11
11
2003
71900-Mercut Metal
Grab ugn
Fayetteville
001
11
12
2003
71900-Mercui Metal
Grab ugA
Fayetteville
001
11
18
2003
71900 - Mercw Metal
Grab ugA
Fayetteville
001
11
25
2003
71900-Memur Metal
Grab ugn
Fayetteville
001
11
27
2003
71900 - Memut Metal
Grab ug/l
Fayetteville
001
11
28
2003
71900 - Mercui Metal
Grab ugA
Fayetteville
001
12
2
2003
71900-Mercui Metal
Composite ug/I
Fayetteville
001
12
10
2003
71900-Mercui Metal
Composite ug/l
Fayetteville
001
12
16
2003 ..
71900-Mercm Metal
Composite ug/l
Fayetteville
001
12
24
2003
71900-Mercui Metal
Composite ug/l
Fayetteville
001
12
25
2003
71900-Memur Metal
Compositt ug/l
Fayetteville
001
12
26
2003
71900-Mercui Metal
Compositt ugA
Fayetteville
001
12
31
2003
71900 - Mercul Metal
Compositt ugA
Value Modiflei Cell Type Loc Subbasin
--HOLID/ DLYVALUE EFF 03-06-10
0.0016
DLYVALUE
EFF
03-06-10
`^AWZ-DLYVALUE
EFF
03-06-10
0.0016
DLYVALUE
EFF
03-06-10
0.00245
DLYVALUE
EFF
03-06-10
0.0006
DLYVALUE
EFF
03-06-10
0.0023
DLYVALUE
EFF
03-06-10
,OU fO LESSTI DLYVALUE
EFF
03-06-10
--I'eHDTDtYVALUE
EFF
03-06-10
0.0019
DLYVALUE
EFF
03-06-10
0.0018
DLYVALUE
EFF
03-06-10
0.011
DLYVALUE
EFF
03-06-10
0.0035
DLYVALUE
EFF
03-06-10
'--}16tIB1
DLYVALUE
EFF
03-06-10
0.0016
DLYVALUE
EFF
03-06-10
0.0017
DLYVALUE
EFF
03-06-10
0.0027
DLYVALUE
EFF
03-06-10
-----1
DJ DLYVALUE
EFF
03-06-10
DLYVALUE
EFF
03-06-10
0.00272
DLYVALUE
EFF
03-06-10
0.00218
DLYVALUE
EFF
03-06-10
0.02741
DLYVALUE
EFF
03-06-10
0.00201
DLYVALUE
EFF
03-06-10
DLYVALUE
EFF
03-06-10
---.KAMu
DLYVALUE
EFF
03-06-10
0.00172
DLYVALUE
EFF
03-06-10

NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
1
1
2004
71900 - Mercue Metal
Compositf ug/l
Dl DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
1
7
2004
71900 - Mercui Metal
Composite ug/l
0.00116
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
1
14
2004
71900 - Mercui Metal
Composite ug/l
0.00152
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
1
19
2004
71900 - Mercui Metal
Composite ug/l
r----„AND/
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
1
21
2004
71900 - Mercui Metal
Composite ug/l
0.00186
DLYVALUE
EFF 03-08-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
1
28
2004
71900 - Mercui Metal
Composite ug/l
0.00265
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
2
4
2004
71900 - Mercui Metal
Composite ugA
0.00287
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
2
11
2004
71900 - Mercui Metal
Compositf ug/l
0.00217
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
2
16
2004
71900 - Mercui Metal
Compositf ug/l
ID/ DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
2
18
2004
71900 - Mercui Metal
Composite ug/l
0.0024
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
2
24
2004
71900 - Mercui Metal
Compositf ug/l
0.00199
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
3
3
2004 <.001
71900 - Mercui Metal
Composite ug/l
0.00248
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
3
10
2004 <.001
71900 - Mercue Metal
Composite ug/l
, W1
LESSTI DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
3
16
2004 <.001
71900 - Mercur Metal
Compositf ug/l
0.00226
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
3
24
2004 <.001
71900 - Mercui Metal
Composite ug/l
0.00124
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
3
31
2004 <.001
71900 - Mercui Metal
Composite ug/l
0.001 5� DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
4
6
2004
71900 - Mercw Metal
Composite ug/l
0.00204
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
4
13
2004
71900 - Mercui Metal
Composite ug/l
0.00352
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
4
21
2004
71900 - Mercui Metal
Compositf ug/l
0.00116
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
4
28
2004
71900 - Mercui Metal
Compositf ug/l
0.000988
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
5
5
2004
71900 - Mercur Metal
Composite ug/l
0.00209
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
5
12
2004
71900 - Mercur Metal
Composite ug/l
0.00127
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
5
19
2004
71900 - Mercur Metal
Composite ug/l
0.00226
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
5
26
2004
71900 - Mercur Metal
Composite ug/l
0.00184
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
5
31
2004
71900 - Mercut Metal
Composite ug/l
--HOLIDI DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
6
2
2004
71900 - Mercui Metal
Composite ug/l
0.00172
DLYVALUE
EFF 03-06-10
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
6
9
2004
71900 - Mercui Metal
Compositf ug/l
0.00198
DLYVALUE
EFF 03-06-10

NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
6
16
2004
71900 - Mercm Metal
Composite ug/l
0.00178
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
6
23
2004
71900-Mercm Metal
composite ugll
0.00162
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
6
29
2004
71900-Merwl Metal
Composite ug/l
0.00466�b/ALYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
7
7
2004
71900-Mercm Metal
Composite ug/I
0.00155
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
7
14
2004
71900-Mercm Metal
Compositt ug/l
0.00168
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
7
21
2004
71900-Mercm Metal
Compositt ug/l
0.00208
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
7
28
2004
71900-Mercm Metal
Compositt u9/1
0.00161
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
8
4
2004 <0.00100
71900 - Mercm Metal
Composite ug/l
0.00181
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
8
11
2004 <0.00100
71900 - Mercm Metal
Compositt ug/l
0.00132
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
8
18
2004 <0.00100
71900 -Mercm Metal
Compositt ug/l
- < .00 10LESSTI DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
8
25
2004 <0.00100
71900- Mercm Metal
Composite ug/l
0.00184
DLYVALUE
EFF
03-08-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
9
1
2004
71900-Mercm Metal
Composite ugn
0.00146
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
9
6
2004
71900-Mercm Metal
Compositt ug/l
--------+K
BL -BNNALUE
EFF
03-06-10
NC0082855
2.10
Town of Robbins -Robbin
Moore
Fayetteville
001
9
8
2004
71900 -Mercm Metal
Composite ug/l
O.O7�YVALUE
EFF
03-06-10
--
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
9
15
2004
71900-Mercm Metal
Composite ug/l
0.00311
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
9
22
2004
71900 - Mercm Metal
Compositt ug/l
0.00282
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
9
29
2004
71900-Mercue Metal
Compositt ug/l
/0.00662
(o,IrZDLYVALUE
EFF
03-O6-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
10
a
2004
71900 - Mercur Metal
Compositt ug/l
0.00423
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
10
13
2004
71900-Mercw Metal
Compositt ug/l
-_ 0. 0900 8,
OS DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
10
20
2004
71900 - Mercm Metal
Composite ug/I
6.009633
- DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins-Robbin
Moore
Fayetteville
001
10
27
2004
71900-Mercm Metal
Composite ugfl
0.00281
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbin- Robbin
Moore
Fayetteville
001
11
2
2004
71900-Mercm Metal
Composite ug/l
0,0019
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
11
10
2004
71900 - Mercm Metal
Composite ug/l
0,00301
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
11
11
2004
71900 - Mercm Metal
Composite ug/l
Un L v\/ALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
11
17
2004
71900 - Memm Metal
Composite ug/l
0.00249
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
11
23
2004
71900 - Mercm Metal
Compositt ugn
0,0043
DLYVALUE
EFF
03-06-10
NC0062855
2.10
Town of Robbins - Robbin
Moore
Fayetteville
001
11
25
2004
71900 - Merca Metal
Composite ug/l
HOLID/ DLYVALUE
EFF
03-06-10

NC0062855
2.10
Town of Robbins-Robbin Moore
Fayetteville
001
11
26
2004
71900-Mercer Metal
NC0062855
2.10
Town of Robbins-Robbin Moore
Fayetteville
001
12
1
2004
71900-Mercw Metal
NG0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
12
8
2004
71900 - Mercui Metal
NC0062855
2.10
Town of Robbins-Robbin Moore
Fayetteville
001
12
15
2004
71900-Mercm Metal
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
12
22
2004
71900 - Mercur Metal
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
12
24
2004
71900 - Mercui Metal
NC0062865
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
12
29
2004
71900 - Mercui Metal
NC0062855
2.10
Town of Robbins - Robbin Moore
Fayetteville
001
12
31
2004
71900 - Memut Metal
Compositr ugll
---- ----HO
lD -DLYVALUE
EFF
03-06-10
Composite ug4
0.00589
DLYVALUE
EFF
03-06-10
Compositr ugn
0.00272
DLYVALUE
EFF
03-0&10
A
Compositr ug0
0.0149
iy DLYVALUE
EFF
03-06-10
Composite ug/I
0.00182
DLYVALUE
EFF
03-06-10
Composite ug/I
IXYVALUE
EFF
03-06-10
Composite ug/I
0.00296
DLYVALUE
EFF
03-06-10
Composite ug/I
—
HOLID/ DLYVALUE
EFF
03-06-10

TOWN OF ROBBINS
PO Box 296
Mayor Mickey R. Brown
Robbins, NC 27325
910) 948-2431
(
Commissioners:
Theron K Bell
Fax: [phone]
Anna C. Den-
Carlton G. Kennedy
Charles (Buddy) Robinson
Mary S. Wood, Mayor Pro Tem
January 24, 2005
DWQ/Permitting Um
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Town of Robbins
NPDES Permit No. NCO062855
Dear Ms. Jefferies,
James R Britt, Jr.
Administrator
Debra T. Cockman, CMC
Clerk/Finance Officer
Daniel L. Brown
Chief of Police
The Town of Robbins would like to request a modification to its existing NPDES Permit.
In January 2003, Perdue Farms, the Town's largest industrial user, ceased production and
discharge to the Town's wastewater treatment plant. Perdue Farms represented
approximately 57% of the Town's discharge. Since their closing, the Town's annual
average discharge has been reduced to 0.232 MGD.
The Town of Robbins wastewater treatment plant is a 1.3 MGD design capacity treatment
facility. Operating at less than 20% of the design capacity has challenged the Town's
wastewater operation in regards to economically satisfying current treatment needs with
grossly oversized treatment units and equipment.
The Town is faced with numerous financial challenges as a result of this enormous loss in
revenue. Corrective measures will require aggressive adjustments throughout the Town's
operational and budgetary structure.
We are requesting that the current Town of Robbins NPDES Permit be modified from a
Grade III Permit to a Tiered NPDES Permit. We request that the Tiered Permit be
provided with a flow limit of 0500 MGD and Grade II sampling and monitoring
frequency to correspond with the current facility loading.
The Town of Robbins made an enormous financial commitment to provide the 1.3 MGD
wastewater treatment facility and desires to maintain its capabilities for future use.
Therefore, the Town requests that the tiered NPDES permit allow for the return to
0 q��o
4

Ms. Dawn Jefferies
Page 2
January 24, 2005
Grade III Permitted conditions once the discharge flow consistently exceeds the Grade II
0.500 MGD limit.
The Town of Robbins also requests that all of the current permit limits be re-evaluated
based on the significant reduction in flow to the receiving stream. This reduction in flow
may affect the 7Q10 and subsequently provide the Town with increased limits.
Specifically, in regards to limits, the Town requests that the Total Phosphorous and
Mercury limitations be removed from the permit. As noted earlier, the Town's largest
industrial user which was a poultry processing plant represented 57% of the Town's flow.
Once the poultry plant closed, the organic and hydraulic characteristics of the Robbins
Wastewater Treatment Plant were significantly reduced. Due to these circumstances, we
request that the Total Phosphorous limit be removed from the permit.
The Town of Robbins is committed to continued environmental compliance and
protection of our receiving stream. A review of past operating data will indicate that the
Robbins Wastewater Treatment Plant has experienced 100% compliance with permitted
limits for over 2 years.
Our request for modification of the existing NPDES Permit is being made based on our
current operating flows and characteristics of the Robbins waste stream.
The Town would appreciate an opportunity to discuss this matter with you in further
detail. Thanking you in advance for consideration in this matter.
Town of Robbins
J es R. Britt, Jr.
Town Administrator
Cc: Belinda Henson, DWQ / Fayetteville Regional Office
Gary Stainback, Hydro Management Services

[Fwd: [Fwd: Town of Robbins]]
Subject: [Fwd: [Fwd: Town of Robbins]]
Date: Fri, 07 Jan 2005 07:15:06 -0500 0�
From: Paul Rawls <[e-mail]> ;
To: Dawn Jeffries <dawn [e-mail]>
CC: Belinda Henson <[e-mail]>
Dawn
Per the request from Robbins this topic has been discussed at great LA
length with the Town manager some time ago.1;1��
The Town has fallen on hard times and the need for relief from the l�
financial burden associated with a higher classification seems justified.
As for the Regional perspective, I believe we should move forward with
the Towns permit modification with at least the same language we ut in
PP
spec limit letters indicating that the Town may not ever get the flow Q
allocation back. �, U
I
If you need something more from the FRO please advise. Ot "o
Dawn if you have not already contacted Nadine Blackwell (she is with
the Town's contract operation firm) I would appreciate it if you could
guide her through the permit mod. process.1�,g
Belinda please place a copy of this in the Robbins NPDES Permit File \,wk
A�\ o!� �G.• c
Thanks All, Paul....... o� tti
Subject: [Fwd: Town of Robbins]
Date: Thu, 06 Jan 2005 16:38:21 -0500
From: Belinda Henson <[e-mail]>
To: paul rawls <[e-mail]>, Dawn Jeffries <[e-mail]>
Subject: Town of Robbins
Date: Thu, 6 Jan 2005 12:11:56 -0500
From: 'Blackwell, Nadine" <[e-mail]>
To: "'[e-mail]"' <[e-mail]>
This is a follow-up to our conversation concerning a tiered permit for the
Town of Robbins. As you are aware, the Town lost its largest industrial
user which has affected the flow tremendously. _I_talked with Ms. Dawn
Jefferies of the DWQ Permitting section about including a monitoring page
with a permit flow of 0.5 MGD which will reclassify the plant as a grade II
facility. She said that the Division could modify the permit to include the
new permit limit page if the local regional office was in agreement. Would
you please contact Ms. Jefferies and let her know if the Fayetteville
regional office is in agreement. Also, are there any forms that will
require completion?
Can you let me know why the Robbin's permit has a phosphorus limit?
�ryJi -f - "o`� f-,7� � O
A,?a��
1 of 1 1/7/2005 7:47 AM

�pF W AT FH
OG North Carolina Department of
O
v0 Environment and Natural Resources
o< Division of Water 9uality
[phone]
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�0

N_i.key R. Brown, Mayor
Commissioners:
Theron K. Bell
Anna C. Derr
Charles R. Lambert
R.L. Tew,III
John K. Maness, Mayor Pro Tern
Ms. Belinda Hinson
NCDWQ-Fayetteville
225 Greet Street
Suite 714
TOWN OF ROBBINS
P.O. Box 296
101 North Middleton Street
Robbins, North Carolina 27325-0296
[phone]
FAX: [phone]
February 5, 2003
Regional Office
Fayetteville, NC 28301-5043
Re Town of Robbins
NPDES Permit No. NCO062855
Dear Ms. Hinson,
JAN 3 1 M3
James R. Britt, Jr.
Administrator
Debra T. Cockman, CMC/AAE
Clerk/Finance Officer
D.L. Brown
Chief of Police
F E B - G 2003
This is a follow-up to your conversation with Mr. Brant Sikes, Robbins WWTP ORC,
concerning the mercury detections in the effluent and what the Town is doing to
eliminate the mercury from the effluent. As you are aware, the Town is conducting an
investigation to determine the source(s) of mercury. Samples have been collected
within the collection system, at the influent, before and after chemical addition at the
treatment plant, and from the industrial users. Attached for your review is an updated
summary of the mercury results from the sampling campaign.
As you will note, mercury is primarily detected at the Shield's Woods lift station and after
the addition of caustic. The Shield's Woods lift station is located in an area that is
predominately residential. We are in the process of surveying the dischargers to the lift
station to identify the source. After meeting with the Town's wastewater treatment
consultants, Hydro Management Services on January 16, we have identified the Health
Center as a possible source. The Town is scheduled to collect mercury samples at a
manhole before the Health Center and at a manhole after the Health Center but prior to
the lift station. In addition, samples will be collected at the lift station.

The effluent mercury results received as of date of this letter for the month of December
were all reported as less than 0.2 ug/i. The Town is actively searching for the source(s)
of mercury. We will keep you informed of our findings.
Sincerely,
Town of Robbins
4am
Britt
Town Administrator
Cc: Brant Sikes
Gary Stainback

TOWN OF ROBBINS
MERCURY SAMPLING IN THE COLLECTION SYSTEM AND AT THE WWTP
Sample Location
Sample Date
Mercury, ug/I
Shield's Woods
Lift Station
10/11/02
0.253
10/14/02
0.238
11/20/02
< 0.200
11 /28/02
< 0.200
12/06/02
0.400
12/10/02
1.000
12/27/02
< 0.200
01 /03/03
< 0.200
01 /08/03
Candor Lift
Station
11/21/02
< 0.200
11 /26/02
0.300
12/12/02
< 0.200
FInfluent
09/24/02
< 0.200
09/25/02
< 0.200
09/26/02
0.210
10/01 /02
< 0.200
11 /14/02
< 0.200
11 /20/02
< 0.200
11 /27/02
0.200
12/03/02
< 0.200
12/11 /02
< 0.200
12/17/02
< 0.200
12/26/02
0.300
12/31 /02
01 /08/03
* Awaiting results from laboratory.
Sample Location
Sample Date
Mercury, ug/1
Splitter Box
(after Caustic)
09/24/02
< 0.200
09/25/02
0.240
09/26/02
0.210
Clarified Effluent
(after Alum)
09/24/02
< 0.200
09/25/02
< 0.200
09/26/02
< 0.200
Perdue
09/26/02
< 0.200
11 /21 /02
< 0.200
12/13/02
< 0.200

TOWN OF ROBBINS
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