NC0020559_Speculative Limits_19900808

NPDES DOCUHENT !CANNING COVER SHEET
NPDES Permit:
NC0020559
Henderson WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Speculative Limits
.�T
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
August 8, 1990
Whigs document ion printed on reuse gaper - ignore arty
content on the re-weir/se wide

State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor George T. Everett, Ph.D.
William W. Cobey, Jr., Secretary August 8, 1990 Director
Mr. Eric M. Williams
City Manager
City of Henderson
P.O. Box 1434
Henderson, NC 27536
C
Subject: Henderson - Nutbush Creek WWTP
Speculative Wasteload Allocation Limits
NPDES No. NC0020559
Vance County
Dear Mr. Williams:
I am writing in response to your letter of July 30 concerning
speculative limits for an expansion of the Nutbush Creek WWTP to
6 MGD. My staff recently completed a speculative wasteload alloca-
tion for the expansion, and the results were sent to Mr. Mike
Acquesta of Peirson and Whitman, Inc. I have attached a copy of
the letter sent to him to aid you in your 201 planning.
I hope the information provided is useful. If you have any
questions or comments, please call Ruth Swanek of my staff or
myself at [phone].
Sincerely,
revor Clements, Asst. Chief
Water Quality Section
Attachment
cc: Coy Batten, Construction Grants
Tim Donnelly, RRO
Central Files
Pollution Prevention Pays
z)1, Noah Carolina . "iI-7c ,

CITY OF HENDERSON
NORTH CAROLINA
July 30, 1990
Mr. Trevor Clemments
Water Quality Section
N. C. Division of Environmental Management
P. 0. Box 27687
Raleigh, North Carolina 27611-7687
RE: Previous Request of May 4, 1990
on behalf of the City of Henderson
Speculative Discharge Limits
Nutbush Creek WWTP
Henderson, North Carolina
Dear Mr. Clemments:
OFFICE OF
CITY MANAGER
AUG 0 2 1990
In connection with 1990 EPA Funding our consulting engineers, Peirson &
Whitman, Inc., requested during early May information relative to Speculative
NPDES Discharge Limits at our Nutbush Creek Wastewater Plant for upgrading to
6.0 MGD. In order to complete the 201 Facilities Plan document, which we must
submit no later than November 15, 1990, it is important that we receive
information on what Speculative NPDES Discharge Limits might be required in
that scenario. Furthermore, we we are attempting at this time to make other
decisions relative to improvements at the Plant and this information is
critical to us. For your information and reference I have taken the liberty
to attach an extra copy of the earlier request made by Mr. Acquesta on our
behalf.
We would appreciate hearing from you as soon as possible on this matter,
and if it would be of any benefit to you as far as your producing this
information if you would like to send us a schedule of your time frame in
developing this information please feel free to do so. We realize the process
is a complex one, and your Office is working under a number of constraints,
but we do appreciate any consideration you could provide us.
Thank you for your attention to this matter. Please do not hesitate to
contact us should additional information be necessary that you do not have
which we could help to provide. With my kindest regards, I am
Very truly yours,
EMW/dew
Attachment
C: (w/attachment)
Mr. Mike Acquesta
Mr. Arthur Mouberry
Mr. Coy Batten
CITY OF HENRSON
Eric M. Wia. ss---1
City Mana r•
Mr. Tom Spain
Mr. Mike Guarini
Mr. Jerry Moss
P.O. BOX 1434, HENDERSON, NC [phone]

IRcs sh�ao
Slog
PEIRSON
AND
WHITMAN
INC.
ARCHITECTS
ENGINEERS
PLANNERS
ESTABLISHED 1938
5510
MUNFORD ROAD
P. O. BOX
52099
PHONE
919/782-8300
FAX
919/783-7642
TWX
5109280511
RALEIGH
N.C.
27612
U.S.A.
May 4, 1990
Mr. Trevor Clements
Water Qual ity Section
N.C. Division of Environmental Management
P.O. Box 27687
Raleigh, North Carolina 27611-7687
Re: Speculative Discharge Limits
Nutbush Creek WWIP
Henderson, North Carolina
P&W Project No. 1022
Dear Mr. Clenunts:
The City of Henderson is on the 1990 Contingency Funding List for an
EPA loan. As part of the requirements for obtaining the loan, I am in
the process of preparing a 201 Facilities Plan. In order to properly
plan for the upgraded wastewater treatment facilities, I am hereby
requesting Speculative NPDES Discharge Limits for a 6.0 MGD Plant on
Nutbush Creek in Henderson, at the site of the existing plant.
Your timely issuance of these limits would be greatly appreciated.
Very truly yours,
PEIRSON & WHITNAN, INC.
Consulting Eng
Michael S. Acquesta, .E.
MSA,/la
cc: City of Henderson
Arthur Mouberry, P.E.
_. J

° ~ C6nvjntWnal units for allocation limits unless noted (*)
' Allocation Number:
5696
NPDE5 #: NCO020559
Modeler: ACS
Facility Name: HENDEQSON/NUTBUSH CREEK WWTP
Stream: NUTBUSH CREEK %Domestic:
County: VANC�: Regional Office: PRO
Design Flow: 006.0
%Industrial:
SubUasin: 030206
Date Request Received: 05-07-90 Date Approval Form Sent:
Date Approval Received: Date WLA Mailed to Aequestor:
Existing/Proposed: P
BODW
NH3:
DO:
TSS:
pH:
Cali:
Awaiting Information: N Confirmation: N
W7A10:
57Q1O:
Qavq:
Recommend Removal (Y,N): Toxicity Limits:
Limits Change in Next Permit (Y`N):
Comments:
3OQ2:
DA:
(Acute'Chronic,None)
Find: N>ext, P)revious, Q)uit?
u3CO»4,
ucomloss'a

State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Michael S. Acquesta, P.E.
5510 Munford Road
Peirson and Whitman, Inc.
P.O. Box 52099
Raleigh, NC 27612
George T. Everett, Ph.D.
July 31, 1990 Director
Subject: Henderson - Nutbush Creek WWTP
Speculative Wasteload Allocation Limits
NPDES No. NC0020559
Vance County
Dear Mr. Acquesta:
I am writing in response to your letter of May 4 in which you
requested speculative NPDES limits for the Henderson-Nutbush Creek
WWTP. Water quality staff of the Division of Environmental Mana-
gement (DEM) have completed a review of the available information
for the existing Henderson plant and its receiving stream, Nutbush
Creek and have recommended the following speculative limits:
Oxygen -Consuming Wastes
The following set of limits was derived for BOD5, NH3-N, and
dissolved oxygen (DO) :
Summer Winter
BOD5 (mg/ 1) 5 10
NH3-N (mg/1) 1 1.9
DO (mg/1) 7 7
These limits were derived based on a combination of water
quality modeling and best professional judgment. The previous model
developed indicated that the minimum predicted DO occurs at the
stream -lake interface, the end of the model, and most of the oxygen
demand was remaining. Since the critical lake portion cannot
reliably be modeled with the available data, a water quality model
was not run to evaluate the 6 MGD waste flow. Instead, equivalent
loading criteria were used to develop allocation fimits. At a flow
of 6 MGD, the BOD5 would have to be 4A mg/1, and the NH3-N would
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Oppoitunity Affirmative Action Employer

have to be 2.1 mg/1. Since DEM does not usually assign BOD5 limits
less than 5 mg/1, limits of 5 mg/1 BOD5 and 1 mg/1 NH3-N were
assigned. This results in almost identical ultimate BOD loading
(1502 lb/d in previous allocation and 1476 lb/d for expansion).
The ammonia limit was also evaluated on the basis of ammonia
toxicity using the Division's standard mass balance technique. An
upstream ammonia concentration of 0.09 mg/1 was assumed based on
water quality data collected during an intensive survey in August,
1988. The resulting summer limit was 1.02 mg/1, and the winter
limit was 1.87 mg/l.
Nutrients
Studies performed in 1988 and in the late 1970s indicate that
the upper portion of the Nutbush Creek arm of Kerr Lake is hyper-
eutrophic. An effluent total phosphorus (TP) limit of 0.2 mg/1 is
needed to meet an instream target concentration of 150 ug/1 during
average stream flow. Since this level of removal is difficult to
obtain, a limit of 0.5 mg/1 can be expected.
At this point in time, no total nitrogen (TN) limits are
planned. However, summer TN limits of 4 mg/1 and winter limits of
8 mg/1 are being assigned to new and expanding facilities in the
Tar River Basin, and as public interest in environmental issues
increases, nitrogen strategies may be implemented in more areas of
the State. Therefore, the City may wish to design the expansion in
a manner which can easily be modified if reductions in TN are
required in the future.
In addition to the TP limit, influent and effluent monitoring
for TP and TN will be required.
Toxics
The following speculative toxics limits were derived for the
facility using a mass balance technique:
Daily Max
Cadmium (ug/1) 2.0
Chromium (ug/ 1) 51
Nickel (ug/l) 90
Lead (ug/1) 25
Cyanide (ug/l) 5.1
Mercury (ug/l) 0.012
Chlorine (ug/1) 17
An updated headworks analysis was used to evaluate the metals.
The chlorine limit was added through standard operating procedure
for new and expanding discharges which states that the action level
for the substance (17 ug/l) must be protected instream under 7Q10
conditions.
In addition to these limits, the facility will also be
required to monitor for copper, silver, and zinc in their effluent

4-
since these parameters are predicted to be in the effluent in high
concentrations, but there is no standard for the substances so no
limit was assigned. Effluent monitoring for diazinon may also be
required since the results of an intensive toxicological
evaluation performed at the facility in May 1988 indicated that the
compound was in high enough concentration to cause toxicity.
Finally, the facility may be required to monitor instream for
cadmium since the effluent data show concentrations which are high
enough to potentially violate the instream standard during base
flow conditions.
Toxicity Limit
The facility will have a quarterly chronic toxicity limit
using Ceriodaphnia at a concentration of 98%.
Other Limits
Other parameters which will be limited are as follows:
TSS (mg/1) 30
Fecal Coliform (#/100 ml) 200
pH (SU) 6-9
These limits do not represent final limits, and are provided
only for planning purposes. The City of Henderson must formally
submit a permit modification request in order to receive final
limits. I hope that this information aids the City in its planning
process. If you need any other information or have any questions,
please do not hesitate to call Ruth Swanek of my staff or myself at
[phone].
JTC:RCS
cc: Tim Donnelly, RRO
Don Safrit
Ruth Swanek
Central Files
Sincerely,
J. Trevor Clements, Asst. Chief
Water Quality Section

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCOO2D5nci
FACILITY NAME: CI kJ of Henderson
Facility Status: Yi,51-1-n3
Permit Status: Exof,nS - PrDpcced eypinsin/t.
Major I Minor
Pipe No.: opt
Design Capacity: [p
Domestic (% of Flow):
Industrial (% of Flow):
Comments:
(n&D
RECEIVING STREAM: Nuthuh Cr-rid(
Class: C
Sub -Basin:
- 03020fI
Reference USGS Quad: A2, i51,0
County: Vance
Regional Office: 'WI O
Requested by: +atrxvnd.Oh, trna
Prepared by:rn5
Pre
P ajk C. sic?c.t,Ek
Reviewed by: Date:
(please attach)
Date:
Date: -7/1LI/4o
This <VecrA-tat ve d. nol• fina6xac{ u... an UPDE,) perm.,><.
Modeler
Date Rec.
#
'Rcs
517190
5119 ct
Drainage Area (mi2 ) 3. R
Avg. Streamflow (cfs):
7Q10 (cfs) 0.2 Winter 7Q10 (cfs) p, µ 30Q2 (cfs) as
Toxicity Limits: IWC qg % Acute
Instream Monitoring:
Parameters See. C 4Ehed Fpr 5 d6S pat alne+ar,3 vinai
Upstream Location
Downstream Location
75
V
L.
c
Comments: coernrterxl i nFluerrf'`'t Pr Tnl mon-dbeine. Wean -meal S
toed- mon,1?hri nr Far n8n. rnmrn"DIP iel* PGTYh
mondrxinj For Cc+dm;um QE I-k xi39 N ,n�5 Yall Qd.
&e attached fbr l hon or ltrn+t�s. sine ttwictl� problcrr
&hacAt! b. _ oarea.d 4.11MAA..- aC.
Effluent
Characteristics
Summer
Winter
N4{3-N (rY5IQ)
1
l.g
T55 (173Q )
30
Jo
7-1)Crrr1 Q)
('). 5
0.5
Cadrilu (A480)
Chmmlurn(M l/)
2. O
51
nl.crer (.u51Iy.
Lead (U f i l
4b DO'
Z5 rYb46
Clan, de 1 )
rrte rc.u.n.) 1 1 )
5. t
0.012,
Dilor,ne ( IR)
1.1

Request
WASTELOAD ALLOCATION APPROVAL
Facility Name:
NPDES No.:
Type of Waste:
Status:
Receiving Stream:
Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Quad:
City of Henderson
NC0020559
94.5% Domestic
Modification to 6
Nutbush Creek
C
030206
Vance
RRO
Peirson & Whit
05/04/90
B25SW
RECOMMENDED EFFLUENT
Wasteflow (mgd):
BOD5 (mg/1):
NH3N (mg/1) :
DO (mg/1) :
TSS (mg/1) :
Fecal Coliform (/100m1):
pH (su) :
TP (mg/1) :
Summer Winter
6.00 6.00
5 10
1 1.9
7 7
30 30
200 200
6-9 6-9
0.5 0.5
MGD
FORM
Drainage
Summer
Winter
Average
LIMITS
No.
5696
area:
7Q10:
7Q10 :.
flow:
30Q2:
SCE V D
JUL 111990
AMDC 2. e=mrimuRitif:
0.4
3.5
0.5
Cadmium (ug/l) :
Chromium (ug/l):
Nickel (ug/l):
Lead (ug/l) :
Cyanide (ug/l):
Mercury (ug/l):
Chlorine (ug/1):
Dly Max
2.0
51
90
25
5.1
0.012
17
Toxicity Testing Req.: Chronic/Ceriodap.nia/98% (See Attached
IYeLs`F'1M .•((4�-- by : al.te f) fb 4, riDr --Ep So(J.vq i' &Lek
MONITORING J
Upstream (Y/N) : Y
Downstream (Y/N) : Y
Location:
Location:
COMMENTS
yQ S) / 4 S Cv u (J Cc 4e.9J2. S,
See Attached for sites,
parameters, and frequencies.
Recommend influent TP and TN monitoring.
Recommend effluent monitoring for diazinon.
Ammonia limit should be daily max for toxicity. /-7'fe-ff'-1-47
See attached memo for explanation of limits.
R&ommcrd i(5Weam mtri;tDr�nr poi Cadm;um of FlottNNI Gnd ,50,;n5 Ygllcy Pd.
k QrC.sC
Recommended by: '}� ,(, C. SSG
Reviewed by (J
Tech Support Supervisor: Date: GMO
i
Regional Supervisor: Li r' „_ /`% ___? 1r Date:
Permits & Engineering: � Date:
RETURN TO TECHNICAL SUPPORT BY: JUL 07 1990
Date: 1 (7(qt,
7/9/5'e'
40e)

Table 5
T)ownstream Self -Monitoring Recommendations
Parameters Sample Type
DO 1 meter depth intervals
pH 1 meter depth intervals
Temperature 1 meter depth intervals
Chlorophyll a Photic zone (2 x secchi depth)
Secchi Depth
Total phosphorus Photic zone
Nitrogen series Photic zone
Recommended frequency is monthly from April - October
Recommended locations are at the powerlines and immediately above the
confluence of Indian and Crooked Run Creeks
Samples should be taken mid morning
Sampling should not occur following rain
Upstream Self -monitoring Recommendations
DO Summer - weekly; Winter - monthly
pH Summer - weekly; Winter - monthly
T Summer - weekly; Winter - monthly
Effluent Self -monitoring Recommendations
As in current permit, with the addition of chromium, lead, cyanide,
cadmium, zinc, copper, nickel, MBAS, and silver. ‘ d auto(.

i 5 ;5 zpecuirAiltie. Fir a. t Plant-- e-q.aded Cth4
anineer
10/89
Facility Name 619 of der 0, - AltAdbizit CL' Permit # A/C00.259
CHRONIC TOXICITY TESTING REQUIREMENT (QR'I'RLY)
The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests,
using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is qR % (defined as treatment two in the North Carolina procedure
document). The permit holder shall perform quarter(v monitoring using this procedure to establish
compliance with the permit condition. The first test will be performed after thirty days from
issuance of this permit during the months of t rr,jun Sep ;mac_ . Effluent
sampling for this testing shall be performed at the NPDtS permitted final effluent discharge below .
all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in.association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management 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 and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
7Q10 0.2 cfs
Permited Flow it MGD Recommended by:
IWC%
Basin & Sub -basin Rtaoto Receiving Stream Nu+bush Cre&c VU,U. C.SttrAktil—
County Vance Date 6ILtlgo
**Chronic Toxicity (Ceriodaphnia) P/F at CiS %, /Ylardun ap. sec. , See Part 3 , Condition .Z .

DIVISION OF ENVIRONMENTAL MANAGEMENT
June 6, 1990
MEMORANDUM
TO: Henderson WLA File
Nutbush Creek - 030206
FROM: Ruth Swanek 'RCS
SUBJECT: Permit Limit Development for 6 MGD WWTP
On May 4, 1990, DEM received a letter from Michael Acquesta of
Peirson and Whitman, Inc., the consultant for the City of Hender-
son requesting speculative NPDES limits for a 6 MGD WWTP at the
existing plant site. This memo summarizes the information used in
developing the wasteload allocation limits:
BOD5 and NH3-N
Nutbush Creek is a class C stream in the Roanoke River Basin.
At the Henderson outfall, the stream is characterized by a drainage
area of 3.8 square miles, a 7Q10 flow of 0.2 cfs, an average flow
of 3.5 cfs, and a 30Q2 flow of 0.5 cfs. The conservation pool of
Kerr Lake is 2.9 miles below the outfall.
The previous model developed indicated that the minimum pre-
dicted DO occurs at the stream -lake interface, the end of the
model, and most of the oxygen demand is remaining. (See Randy
Dodd's memo to Bill Kreutzberger dated January 25, 1989). Since
the critical lake portion cannot be modeled with the available
data, a water quality model was not run to evaluate the 6 MGD waste
flow. Instead, equivalent loading criteria were used to develop
allocation limits. At a flow of 6 MGD, the BOD5 would have to be
4.1 mg/1, and the NH3-N would have to be 2.1 mg/i. Since DEM does
not usually assign BOD5 limits less than 5 mg/l, limits of 5 mg/1
BOD5 and 1 mg/1 NH3-N were assigned. This results in almost
identical ultimate BOD loading (1502 lb/d in previous allocation
and 1476 lb/d for expansion).
The ammonia limit was also evaluated on the basis of ammonia
toxicity. An upstream ammonia concentration of 0.09 mg/1 was
assumed based on water quality data collected during an intensive
survey in August, 1988. The resulting summer limit was 1.02 mg/1,
and the winter limit was 1.87 mg/l.
Phosphorus
The upper portion of the Nutbush Creek arm of Kerr Lake is
hypereutrophic (See Randy Dodd's memo of 1/25/89 to Bill Kreutz-

berger for study results and data analysis). An effluent TP limit
of 0.2 mg/1 is needed to meet an instream target concentration of
150 ug/1 during average stream flow. Since this level of removal
is difficult to obtain, a limit of 0.5 mg/1 was assigned to the
facility.
Toxics
An updated headworks analysis was obtained from the Pretreat-
ment Unit to evaluate the metals. The toxics spreadsheet was used
to derive the limits. Upstream metals data were obtained from
instream monitoring data collected by the City since April. The
analysis was also done assuming an upstream concentration of zero
to compare the results since some of the detection limits seemed
low. The resulting limits were almost identical, and the limits
using the instream data were used since these were less strigent
than the existing ones due to roundoff error.
Diazinon Monitoring
Effluent monitoring for diazinon was included since results of
an intensive onsite toxicological evaluation performed in
May, 1988 indicated high enough concentrations to potentially cause
toxicity problems.

06/04/90 ver 3.1 TOXICS REVIEW
Facility: Henderson - Nutbush Creek
NPDES Permit No.: NC0020559
Status (E, P, or M) : E
Permitted Flow: 6.00 mgd
Actual Average Flow: 2.4 mgd
Subbasin: 030206
Receiving Stream: Nutbush Creek I PRETREATMENT DATA I----EFLLUENT DATA ----
Stream Classification: C I ACTUAL PERMITTED!
7010: 0.2 cfs I Ind. + Ind. + I FREQUENCY
IWC: 97.89 % I Domestic PERMITTED Domestic I OBSERVED of Chronic
Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria
Pollutant AL Conc. I Eff. Load Load Load Load Load I Conc. Violations
(ug/l) (ug/l) I % (#/d) (#/d) (#/d) (#/d) (#/d) I (ug/l) (#vio/#sam)
Cadmium S 2.0 I 44% 0.07 0.056 0.13 0.02 0.094 I 170.00 11/25 I
Chromium S 50.0 I 60% 0.35 0.249 0.60 0.58 0.930 I 66.00 1/25 I I
Copper AL 7.0 I 77% 0.70 0.198 0.90 0.21 0.910 I I N
Nickel S 88.0 I 32% 0.53 0.533 1.06 0.25 0.780 I 500.00 1/25 I P
Lead S 25.0 I 65% 0.18 0.016 0.20 0.47 0.650 I 36.00 3/24 I U
Zinc AL 50.0 I 81% 2.29 0.157 2.45 0.43 2.720 I I T
Cyanide S 5.0 I 59% 0.70 0.050 0.75 0.00 0.700 I I
Mercury S 0.012 I 86% 0.01 0.000 0.01 0.00 0.010 I I S
Silver AL 0.06 I 94% 0.18 0.020 0.20 0.00 0.180 I I E
Selenium S 5.00 I 0% I I C
Arsenic S 50.00 I 40% 0.05 0.020 0.07 0.00 0.050 I I T
Phenols S NA I 71% 0.35 0.206 0.56 0.09 0.440 I I I
NH3-N C I 0% I 1 0
T.R.Chlor.AL 17.0 I 0% I I N
Pollutant
ALLOWABLE PRDCT'D PRDCT'D PRDCT'D MONITOR/LIMIT I--ADTN'L RECMMDTN'S--
Effluent Effluent Effluent Instream I Recomm'd
Conc. using using Conc. Based on Based on Based on I FREQUENCY INSTREAM
Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor.
Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd 2
(#/d) (ug/l) (ug/1) (ug/l) (ug/1) Loading Loading Data I OBSERVED (YES/NO)
Cadmium S I 0.08 2.043 3.538 2.639 166.42 Limit Limit Limit I NCAC YES I A
Chromium S I 2.63 51.075 12.013 18.652 64.61 Limit Limit Limit I NCAC YES I N
Copper AL I 0.64 7.151 10.356 10.494 0.00 Monitor Monitor I I A
Nickel S I 2.72 89.892 36.242 26.594 489.47 Limit Limit Limit I NCAC YES I L
Lead S I 1.50 25.538 3.440 11.407 35.24 Limit Limit Limit I NCAC YES I Y
Zinc AL I 5.53 51.075 23.311 25.912 0.00 Monitor Monitor I I S
Cyanide S I 0.26 5.108 15.418 14.390 0.00 Limit Limit I I I
Mercury S I 0.00 0.012 0.070 0.070 0.00 Limit Limit I I S
Silver AL I 0.02 0.061 0.602 0.542 0.00 Monitor Monitor I I
Selenium S I 0.11 5.108 0.000 0.000 0.00 I I R
Arsenic S I 1.75 51.075 2.106 1.504 0.00 Monitor Monitor I I E
Phenols S I 0.000 8.084 6.398 0.00 Limit Limit I I S
NH3-N C I 0.000 0.00 I I U
T.R.Chlor.AL I 17.366 0.00 I I L
I I IT
i I IS

06/04/90 ver 3.1 TOXICS REVIEW
Facility: Henderson - Nutbush Creek
NPDES Permit No.: NC0020559
Status (E, P, or M): E
Permitted Flow: 6.00 mgd
Actual Average Flow: 2.4 mgd
Subbasin: 030206
Receiving Stream: Nutbush Creek I PRETREATMENT DATA I----EFLLUENT DATA---- I
Stream Classification: C 1 ACTUAL PERMITTED' I
7010: 0.2 cfs 1 Ind. + Ind. + I FREQUENCY I
IWC: 97.89 % 1 Domestic PERMITTED Domestic I OBSERVED of Chronic'
Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria I
Pollutant AL Conc. I Eff. Load Load Load Load Load I Conc. ViolationsI
(ugh].) (ug/1) I % (#/d) (#/d) (f/d) (#/d) (#/d) I (ug/1) (#vio/#sam)I
Cadmium S 2.0 I 44% 0.07 0.056 0.13 0.02 0.094 I 170.00 11/25 I
Chromium S 50.0 2.53 I 60% 0.35 0.249 0.60 0.58 0.930 I 66.00 1/25 I I
Copper AL 7.0 1 77% 0.70 0.198 0.90 0.21 0.910 I I N
Nickel S 88.0 5.53 I 32% 0.53 0.533 1.06 0.25 0.780 I 500.00 1/25 I P
Lead S 25.0 14.87 I 65% 0.18 0.016 0.20 0.47 0.650 I 36.00 3/24 I U
Zinc AL 50.0 I 81% 2.29 0.157 2.45 0.43 2.720 I I T
Cyanide S 5.0 I 59% 0.70 0.050 0.75 0.00 0.700 I I
Mercury S 0.012 I 86% 0.01 0.000 0.01 0.00 0.010 I I S
Silver AL 0.06 I 94% 0.18 0.020 0.20 0.00 0.180 I I E
Selenium S 5.00 I 0% I I C
Arsenic S 50.00 I 40% 0.05 0.020 0.07 0.00 0.050 I I T
Phenols S NA I 71% 0.35 0.206 0.56 0.09 0.440 I I I
NH3-N C I 0% I 1 0
T.R.Chlor.AL 17.0 I 0% I I N
Pollutant
1.84
ALLOWABLE PRDCT'D PRDCT'D PRDCT'D MONITOR/LIMIT I--ADTN'L RECMMDTN'S--
Effluent Effluent Effluent Instream I Recomm'd
Conc. using using Conc. Based on Based on Based on I FREQUENCY INSTREAM
Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor.
Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd ?
(lid) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data I OBSERVED (YES/NO)
Cadmium S I 0.08 2.003 3.538 2.639 166.46 Limit Limit Limit I NCAC YES I A
Chromium S I 2.63 51.021 12.013 18.652 64.66 Limit Limit Limit I NCAC YES I N
Copper AL I 0.64 7.151 10.356 10.494 0.00 Monitor Monitor I I A
Nickel S I 2.72 89.774 36.242 26.594 489.59 Limit Limit Limit I NCAC YES I L
Lead S I 1.50 25.218 3.440 11.407 35.56 Limit Limit Limit I NCAC YES I Y
Zinc AL I 5.53 51.075 23.311 25.912 0.00 Monitor Monitor I I S
Cyanide S I 0.26 5.108 15.418 14.390 0.00 Limit Limit I I I
Mercury S I 0.00 0.012 0.070 0.070 0.00 Limit Limit I I S
Silver AL I 0.02 0.061 0.602 0.542 0.00 Monitor Monitor I I
Selenium S I 0.11 5.108 0.000 0.000 0.00 I I R
Arsenic S I 1.75 51.075 2.106 1.504 0.00 Monitor Monitor I I E
Phenols S ' 0.000 8.084 6.398 0.00 Limit Limit . ' I S
NH3-N C I 0.000 0.00 I I U
T.R.Chlor.AL I 17.366 0.00 I I L
I I IT
i i I S

06/04/90 ver 3.1 TOXICS REVIEW
Facility: Henderson - Nutbush Creek
NPDES Permit No.: NC0020559
Status (E, P, or M) : E
Permitted Flow: 4.14 mgd
Actual Average Flow: 2.4 mgd
Subbasin: 030206
Receiving Stream: Nutbush Creek I PRETREATMENT DATA I----EFLLUENT DATA ----
Stream Classification: C I ACTUAL PERMITTED)
7Q10: 0.2 cfs I Ind. + Ind. + I FREQUENCY
IWC: 96.98 % I Domestic PERMITTED Domestic I OBSERVED of Chronic
Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria
Pollutant AL Conc. I Eff. Load Load Load Load Load I Conc. Violations
(ug/1) (ug/l) I % (f/d) (#/d) (t/d) (t/d) (#/d) I (ug/l) (tvio/#sam)
Cadmium S 2.0 I 44% 0.07 0.056 0.13 0.02 0.094 I 170.00 11/25 I
Chromium S 50.0 I 60% 0.35 0.249 0.60 0.58 0.930 ) 66.00 1/25 I I
Copper AL 7.0 I 77% 0.70 0.198 0.90 0.21 0.910 I I N
Nickel S 88.0 I 32% 0.53 0.533 1.06 0.25 0.780 I 500.00 1/25 I P
Lead S 25.0 I 65% 0.18 0.016 0.20 0.47 0.650 I 36.00 3/24 I U
Zinc AL 50.0 I 81% 2.29 0.157 2.45 0.43 2.720 I I T
Cyanide S 5.0 I 59% 0.70 0.050 0.75 0.00 0.700 I I
Mercury S 0.012 I 86% 0.01 0.000 0.01 0.00 0.010 I I S
Silver AL 0.06 I 94% 0.18 0.020 0.20 0.00 0.180 I I E
Selenium S 5.00 I 0% I I C
Arsenic S 50.00 I 40% 0.05 0.020 0.07 0.00 0.050 I I T
Phenols S NA I 71% 0.35 0.206 0.56 0.09 0.440 I I I
NH3-N C I 0% I 1 0
T.R.Chlor.AL 17.0 I 0% I I N
Pollutant
ALLOWABLE PRDCT'D PRDCT'D PRDCT'D MONITOR/LIMIT I--ADTN'L RECMMDTN'S--
Effluent Effluent Effluent Instream I Recomm'd
Conc. using using Conc. Based on Based on Based on I FREQUENCY INSTREAM
Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor.
Load Criteria Influent Influent OBSERV?'^ Influent Influent Effluent I based on Recomm'd ?
(#/d) (ug/1) (ug/1) (ug/l) (ug/ii Loading Loading Data I OBSERVED (YES/NO)
Cadmium S I 0.08 2.062 3.538 _639 164.86 Limit Limit Limit I NCAC YES I A
Chromium S I 2.63 51.558 12.013 18.652 64.01 Limit Limit Limit I NCAC YES I N
Copper AL I 0.64 7.218 10.356 10.494 0.00 Monitor Monitor I I A
Nickel S I 2.72 90.743 36.242 26.594 484.89 Limit Limit Limit I NCAC YES I L
Lead S I 1.50 25.779 3.440 11.407 34.91 Limit Limit Limit I NCAC YES I Y
Zinc AL I 5.53 51.558 23.311 25.912 0.00 Monitor Monitor I I S
Cyanide S I 0.26 5.156 15.418 14.390 0.00 Limit Limit I I I
Mercury S I 0.00 0.012 0.070 0.070 0.00 Limit Limit I I S
Silver AL I 0.02 0.062 0.602 0.542 0.00 Monitor Monitor I 1
Selenium S I 0.11 5.156 0.000 0.000 0.00 I I R
Arsenic S I 1.75 51.558 2.106 1.504 0.00 Monitor Monitor I I E
Phenols S I 0.000 8.084 6.398 0.00 Limit Limit I I S
NH3-N C I 0.000 0.00 I I U
T.R.Chlor.AL I 17.530 0.00 I I L
I I IT
i i iS

06/04/90 ver 3.1 TOXICS REV I E W
Facility: Henderson - Nutbush Creek
NPDES Permit No.: NC0020559
Status (E, P, or M): E
Permitted Flow: 4.14 mgd
Actual Average Flow: 2.4 mgd
Subbasin: 030206
Receiving Stream: Nutbush Creek I PRETREATMENT DATA I----EFLLUENT DATA ----
Stream Classification: C 1 ACTUAL PERMITTED!
7Q10: 0.2 cfs I Ind. + Ind. + I FREQUENCY
IWC: 96.98 % 1 Domestic PERMITTED Domestic I OBSERVED of Chronic
Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria
Pollutant AL Conc. I Eff. Load Load Load Load Load I Conc. Violations
(ug/l) (ug/l) I % (#/d) (#/d) (#/d) (#/d) (#/d) I (ug/l) (#vio/#sam)
Cadmium S 2.0 1.84 I 44% 0.07 0.056 0.13 0.02 0.094 I 170.00 11/25 I
Chromium S 50.0 2.53 I 60% 0.35 0.249 0.60 0.58 0.930 I 66.00 1/25 I I
Copper AL 7.0 I 77% 0.70 0.198 0.90 0.21 0.910 I I N
Nickel S 88.0 5.53 I 32% 0.53 0.533 1.06 0.25 0.780 500.00 1/25 I P
Lead S 25.0 14.87 I 65% 0.18 0.016 0.20 0.47 0.650 36.00 3/24 I U
Zinc AL 50.0 I 81% 2.29 0.157 2.45 0.43 2.720 I T
Cyanide S 5.0 I 59% 0.70 0.050 0.75 0.00 0.700 I
Mercury S 0.012 I 86% 0.01 0.000 0.01 0.00 0.010 I S
Silver AL 0.06 I 94% 0.18 0.020 0.20 0.00 0.180 I E
Selenium S 5.00 I 0% I C
Arsenic S 50.00 I 40% 0.05 0.020 0.07 0.00 0.050 I T
Phenols S NA I 71% 0.35 0.206 0.56 0.09 0.440 I I
N1-13-N C I 0% I 0
T.R.Chlor.AL 17.0 I 0% I N
Pollutant
ALLOWABLE PRDCT'D PRDCT'D PRDCT'D MONITOR/LIMIT I--ADTN'L RECMMDTN'S--
Effluent Effluent Effluent Instream I Recomm'd
Conc. using using Conc. Based on Based on Based on I FREQUENCY INSTREAM
Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor.
Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd ?
(#/d) (ug/l) (ug/l) (ug/1) (ug/1) Loading Loading Data I OBSERVED (YES/NO)
Cadmium S I 0.08 2.005 3.538 2.639 164.92 Limit Limit Limit I NCAC YES I A
Chromium S I 2.63 51.480 12.013 18.652 64.08 Limit Limit Limit 1 NCAC YES I N
Copper AL I 0.64 7.218 10.356 10.494 0.00 Monitor Monitor I I A
Nickel S I 2.72 90.570 36.242 26.594 485.05 Limit Limit Limit I NCAC YES I L
Lead S I 1.50 25.316 3.440 11.407 35.36 Limit Limit Limit I NCAC YES I Y
Zinc AL I 5.53 51.558 23.311 25.912 0.00 Monitor Monitor I I S
Cyanide S I 0.26 5.156 15.418 14.390 0.00 Limit Limit I I I
Mercury S I 0.00 0.012 0.070 0.070 0.00 Limit Limit I I S
Silver AL I 0.02 0.062 0.602 0.542 0.00 Monitor Monitor I I
Selenium S I 0.11 5.156 0.000 0.000 0.00 I I R
Arsenic S I 1.75 51.558 2.106 1.504 0.00 Monitor Monitor I I E
Phenols S I 0.000 8.084 6.398 0.00 Limit Limit I I S
NH3-N C I 0.000 0.00 I I U
T.R.Chlor.AL I 17.530 0.00 I I L
I I I T
I I S

NPDJ S PRETRFATTONT INFIDRMATION REQUEST FORM
FACILITY NAME: 14?_v,,d f rs.o NPDF.S NO. NCOO 2. 0 g
REQUESTER : w a •I e
DATE: 5/ .2L/ / dp REGION: 0
PERMIT CONDITIONS COVERING PRFTRFATMF3Z1T
This facility has no Sills and should not have pretreatment language.
This facility should and/or is developing a pretreatment program.
Please include the following conditions:
Program Development
Phase I due / '/
Phase II due / /—
Additional Conditions
(attached)
This facility is currently implementing a pretreatment program.
Please include the following conditions:
X Program Implementation
Additional Conditions
(attached)
SICZJIFICANT INDUSTRIAL USF,RS' (STUB) CONTRIBCUTIONS
SIU FLOW - TaTAL:
Crx'3ITION :
TEXTILE.
METAL FINI"SHING� :
OMER:
(29 a5 IW
se,F_
MGD
MGD
Ma)
HE7 EX ORKS REVIEW
PARAMETER
cd
Cr
Cu
Ni
Pb
Zn
CN
Phenol
Other As
140
;ALIOABLE
D .0?
a.5'o
1.59
1.43
1.43
6.3"t
0.25
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(11411
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her
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hair 0.si? .016
0•93 .15�
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RECEIVED: 57aY/qa REVIEWED BY: re-Q0e ,
REITJRNED: 5/ 3 / /96
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Nutbush Creek Metals (Self Monitoring Data)
Up Cd Up Cr Up Pb Up Ni D1 Cd D1 Cr D1 Pb D1 Ni D2 Cd D2 Cr D2 Pb D2 Ni
Date (ug/l) (ug/l) (ug/l) (ug/l) (ugh].) (ug/l) (ug/l) (ug/1) (ugh) (ug/l) (ug/l) (ug/l)
04-Apr-90 4 <5 7 <5 3 <5 7 7 <1 <5 1 <5
07-Mar-90 <11 11 10 19 1 15 9 15
03-Jan-90 2 5 5 <5 3 6 7 7
06-Dec-89 4 11 5 2 16 10 7 6
15-Nov-89 14 5 37 9 3 <5 37 <5
18-Oct-89 <5 11 105 39 <5 17 65 27
20-Sep-89 <1 <5 <5 <10 <1 <5 <5 <10
25-Aug-89 <5 <10 <5 <5 <5 12 <5 <5
19-Jul-89 <2 <10 22 <20 <2 <10 25 <20
07-Jun-89 <2 <10 <5 <50 <2 <10 <5 <50
14-Jun-89 <2 <10 <5 <50 <2 <10 <5 <50
21-Jun-89 <2 <10 44 <50 <2 <10 38 <50
28-Jun-89 2.6 <10 <5 <50 3 <10 <5 <50
05-May-89 2.3 <5 4.7 13 2.3 <5 3.6 13
12-May-89 <2 <10 1.5 12 <2 <10 2.4 <10
18-May-89 2.3 <10 3 <10 1.6 <10 3.5 <10
24-May-89 <2 <10 8.6 <10 <2 <10 4.2 <10
Maximum = 14 11 105 39 16 17 65 27
Note: Up = Nutbush Creek at Highway 39
D1 - Downstream on Nutbush Ck at Spring Valley Rd.
D2 = Downstream on Nutbush Arm of Kerr Lake

Nutbush Creek Nutrients (Self Monitoring Data)
Up TP UP TN UP TKN D1 TP D1 TN D1 TKN D2 TP D2 TN D2 TKN
Date (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1)
04-Apr-90 0.70 2.58 1.30 0.72 6.69 2.60 0.36 4.03 1.50
18-Oct-89 0.28 7.48 5.08 0.77 11.45 2.10
20-Sep-89 0.50 4.00 1.40 0.40 17.30 1.80
25-Aug-89 <0.02 18.60 0.50 <0.02 76.30 1.00
19-Jul-89 <0.10 5.50 1.40 0.32 9.10 2.00
01-Jun-89 <0.10 2.50 1.10 0.16 15.90 2.80
07-Jun-89 <0.10 3.00 1.40 <0.10 7.80 1.70
14-Jun-89 0.39 5.80 4.50 0.28 33.30 2.80
21-Jun-89 0.21 2.10 1.40 0.21 5.10 3.40
28-Jun-89 <0.10 2.90 1.70 0.22 13.30 2.20
05-May-89 <0.10 2.10 <0.10 0.90 10.40 5.00
12-May-89 <0.10 1.90 0.80 <0.10 2.80 1.40
18-May-89 <0.10 2.40 0.80 0.11 13.10 2.00
24-May-89 <0.10 2.20 1.10 0.11 12.40 1.70
07-Apr-89 <0.10 2.10 1.10 <0.10 4.80 1.40
12-Apr-89 <0.10 1.20 <0.10 0.22 6.50 1.70
18-Apr-89 <0.10 2.10 0.80 0.22 7.90 2.00
27-Apr-89 <0.10 2.10 1.10 0.11 5.90 2.20
Maximum - 0.70 18.60 5.08 0.90 76.30 5.00
Note: UP - Nutbush Creek upstream of WWTP at Hwy 39 N
D1 - Downstream of WWTP on Nutbush Creek at Spring Valley Road
D2 - Downstream of WWTP on Nutbush Creek Arm of Kerr Lake

MEMORANDUM
TO:
TOUGH:
DIVISION OF ENVIRONMENTAL MANAGEMENT
Dale Overcash
Ruth Clark •�C
Trevor Clements
FROM: Juan C. Mangles
C.Y
April 30, 1990
SUBJECT: Instream Monitoring Requirements for
City of Henderson-Nutbush Creek WWTP
NPDES Permit No. NC0020559
Vance County
The Raleigh Regional Office (RRO) has contacted me to determine the exact
location of the downstream monitoring site for the subject facility. During a
review of the last wasteload allocation (WLA) prepared for the subject facility it
was noticed that the Technical Support Branch recommended a complex instream
monitoring program for this facility. However, a review of the NPDES permit by Ms.
Judy Garret of the RRO indicated that the monitoring program as recommended in the
WLA was not included in the issued permit.
I have attached a copy of the WLA finalized February 27, 1989 which recom-
mends the aforementioned instream monitoring program. Please take appropriate
action to incorporate the detailed instream monitoring program outline in the
referenced WLA.
If you need further clarification in this matter, please contact me at ext.
510.
Attachment
cc:
WLA File
Central Files
Judy Garret
Tim Donnelly