NC0023736_Wasteload Allocation_19950310

NPDES DOCU BENT SCANNING COVER SHEET
NC0023736
Gunpowder Creek WWTP
NPDES Permit:
Document Type:
Permit Issuance
t
Wasteload Allocation,
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
March 10, 1995
This document is printed on reuse paper - ignore airy
content on the reirerse side

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0023736
PERMIT I'hE NAME:
FACILITY NAME:
City of Lenoir
Gunpowder Creek WWTP
Facility Status: Existing
Permit Status: Renewal with Modification
Major Minor
Pipe No.: 001
Design Capacity: 1.2 MGD /2. 0
Domestic (% of Flow): 75.0 %
Industrial (% of Flow): 25.0 %
Comments:
Need WLA for expanded flow of 2.0 MGD also. Percent flows are
based on 1.2 MGD flow and pretreatment information.
RECEIVING STREAM: Gunpowder Creek
Class: C
Sub -Basin: 03-08-32
Reference USGS Quad: D 13 SW
County: Caldwell
Regional Office: snv, tl le -RC gional Office
(please attach)
Previous Exp. Date: 6/30/95 Treatment Plant Class:
Classification changes within three miles:
Requested by: Greg Nizich
Prepared
Reviewed by: (//,jGe174, G vx
Class IV
Date: 11/4/94
Wasteflow (MGD):
BOD5 (mg/I):
NH3N (mg/I):
DO (mg/I):
TSS (mg/I):
Fecal Coliform (/100 ml):
pH (SU):
Residual Chlorine (µg/I):
TP (mg/I):
TN(mg/I):
Cadmium (µg/I):
Copper (µg/I):
Cyanide (µg/I):
Fluoride (µg/I):
Zinc (µg/l):
Modeler,.
Date Rec.
#
-IV-Ai
/f/7/1(
06)4Y
Drainage Area (mi2): 12.9
Average Streamflow (cfs): 18.0
s7Q10 (cfs): 3.0 w7Q10 (cfs): 4.3 30Q2 (cfs): 5.8
Toxicity Limits: Chronic (Ceriodaphnia) P / F
38 % for 1.2 mgd and 52 % for 2.0 mgd
March, June, September, and December
Upstream Location: at least 100' above outfall
Downstream Location : install staff gage (refer map attached to Fact Sheet)
Downstream Location (site # 1): Gunpowder Creek before Old Millpond or SR 1002 **
Downstream Location (site # 2): SR 1107 in the pooled area of Old Millpond
Parameters: temperature, dissolved oxygen, fecal coliform, conductivity, and flow
(for all three sites *)
NOX, T i<A[ , TP, pH, chlorophyll a, and pheophytin a
(for May through September at all three sites 2 / month)
Special instream monitoring locations or monitoring frequencies:
* Temperature, dissolved oxygen, fecal coliform, conductivity, and flow shall be
sampled three times per week during June, July, August, and September and
once per week during the remaining months of the year.
TN, TP, pH, chlorophyll a, and pheophytin a shall be monitored at all three sites
twice per month during May, June, July, August, and September.
** Requestdownstream site #1 samples be taken between 11:30 am to 1:30 pm.
/1 Monthly Average ?) Monthly Average
Summer Winter Summer Winter
1.2 1.2 2.0 2.0
30 30 30 30
2.3 * 5.5 *
5.0 5.0
30 30
200 200
6-9 6-9
monitor monitor
2.0
5.0
30
200
6-9
28.0
monitor monitor monitor
monitor monitor monitor
5.2
13.0
Daily Maximum
monitor
Daily Maximum
monitor
monitor
4.0
5.0
30
200
6-9
28.0
monitor
monitor
3.9 Daily Maximum
monitor
9.8 Daily Maximum
3.5 Daily Maximum
monitor
Dater mil , 19,95 * per Part III, Section F., these limits will apply on July 1, 1995.
Dato:31 I 0 I cl There shall be no discharge of floating solids or visible foam in other than trace amounts.
II

JAN-19-1995 17:41 FROM Asheville RO DEHNR TO WATER QUALITY R P.02
V.,IGR U;Ur1L111 IQ
Facility Name:
N'?DES No.:
Type of Wash:
Facility Status:
Permit Status:
Re iving Stream:
Steam Classification:
Subb sirs:
County:
Regional Oice:
Requestor:
Date of Request:
Topo Quad:
FACT- SHEET FOR WASTELOAD ALLOCATION
Request # 8048 P. ,>
City of Lenoir - Gunpowder Creek WWI?
N C0023736
Domestic - 75 % Industrial - 25 %
Existing
Renewal
Gunpowder Creek
03-08.52
Caldwell
Asheville
Nizich
11/7/94
D13SW
alIOULOIAMMtLiArgii
LT SGS #
Date:
Drainage Area (n>i2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
12.9
3.0
4.3
18.0
5.8
38 %
Wasteload Allocation Su.nlmary
(approach taken, Correspondence with region, EPA, etc.)
Prelitlinary EngipeeringBeal: 3 proposed upgrades - sequencing batch reactor (SBR) w/ ammonia
removal, new chbrination / dechlorination facilities, and step aeration. Section 4.2, p. 9 "The proposed
WWTP expansion has been designed to achieve an effluent 10 mg/1 BOD, 10 mg/1 TSS, and 1.0 mg/1
ammonia, all of which are below the speculative effluent limits provided by the Division of Environmental
Management." This document is mainly composed of Copied material from the Permit and has little
substantial information as to the effects of the discharge and no information about the toxicity problems.
BOD consistently beIOw 20 rngll, NH3-N consistently below 5.0 mg/l, (10.14 average in January, 1994).
Residual chlorine levels are excessive. Refer toxic spreadsheet brief below. Parameters to be monitored
per LIMP: As, Cd, Cr, Cu, CN, Pb, Hg, Ni, Ag, Zn, and Fluoride. Vacillating P/F rate for toxicity testing
Significant increase ill both chlorophyll -a, (at least two violations of 40 gg/I standard are documented) and
pheophytin a Ieve1S at the downstream she #2, (pooled area of did Millpond) as well as supersaturated
dissolved oxygen Conditions. WIl recommend increase in instream monitoring frequency during summer
months, (1/ week ). Further, future review should take place as to nutrient impacts upon algal
occurrences by this facility,
Special Schedule Requirenlenls and additional comments from Reviewers:
Rc ommended b
Date: t
Farrtil Kmigh I
InstzeaM As s nr. //'��h. Dare: !t ! °,/q,-5—
Reg 'scar: Date: � --S
PerrxaEngineering: Daze:
RETURN TO TECHNICAL SUPPORT BY:

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):
CONVENTIONAL PARAMETERS
Monthly Average
1.2
30
monitor summer / winter limits to be included July 1,1995
5.0
30
200
6-9
monitor
not required
monitor
monitor
There shall be no discharge of floating solids or visible foam in other than trace amounts.
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):
Monthly Average Monthly Average
Summer Winter Summer Winter
1.2 2.0
30 30 30 30
2.3 * 5.5 * 2.0 4.0
5.0 5.0 5.0 5.0
30 30 30 30
200 200 200 200
6-9 6-9 6-9 6-9
monitor monitor 28.0 28.0
not required not required
monitor monitor monitor monitor
monitor monitor monitor monitor
WQorEL
There shall be no discharge of floating solids or visible foam in other than trace amounts.
* Per previous Permit, Part III, Section F., these limits will apply on July 1,1995 to protect
Gunpowder Creek.
Parameter(s) affected:
NH3N
BOD5 and Residual Chlorine
Limits Changes Due To:
refer * note above
proposed expansion
(explanation of any modifications to past modeling analysis including new flows, rates, field data,
interacting discharges)
(See page 4 for miscellaneous and special conditions, if applicable)

Type of Toxicity Test:
Existing Limit:
Recommended Limit
Monitoring Schedule:
Existing Limits
Cadmium (pg/1):
Chromium (4/1):
Copper (µme):
Nickel (41):
Lead (14/1):
Zinc (µg/1):
Cyanide (nil):
Fluoride (1.4/1):
Silver (4/1):
Recommended Limits
Flow (mgd):
-Cadmium (p.g/1):
Chromium (µg/1):
Copper (1 l 1):
Nickel (µg/1):
Lead (µg/1):
Zinc (4/1):
Cyanide (}.tg/1):
Fluoride (µg/1):
Silver (14/1):
TOXICS/METALS
Chronic (Ceriodaphnia) Toxicity P /F Test
38 %
38 % or 52 % (upon expansion)
March, June, September, and December
Daily Maximum
5.2
131
monitor
230
65
monitor
13
4.7
monitor
Daily Maximum
1.2
-5.2
not required
monitor
not required
not required
monitor
13.0
monitor
not required
Daily Maximum
2.0
-3.9
not required
monitor
not required
not required
monitor
9.8
3.5
not required
WQ or EL
WQ
WQ
EL / WQ
1.2 mgd
Cadmium: Max. Pred Cw 9.6
Allowable Cw 5.2
2.0 mgd
9.6 Limit per NPDES Permit
3.9
Chromium: Max. Pred Cw 7.8 7.8
Allowable Cw 130.6 98.4
Nickel: Max.PredCw 13.0 13.0
Allowable Cw 229.9 173.2
Lead: Max. Pred Cw 34.0 34.0
Allowable Cw 65.3 49.2
Copper: Max. Pred Cw 356.4 356.4
Allowable Cw 18.3 13.8
Silver: Max.PredCw 0.0 0.0
Allowable Cw 0.16 0.12
Zinc: Max.PredCw 437.0 437.0
Allowable Cw 130.7 98.4
Cyanide: Max. Pred Cw 17.0 17.0
Allowable Cw 13.1 9.8
Fluoride: Max. Pred Cw 4.4 4.4
Allowable Cw 4.7 3.5
consistent values above detection limit w/ a 4.8 µg/1 maximum value
not required - LTMP
50 out of 52 values were BDL
not required - LTMP
45 out of 52 values were BDL
not required - LTMP
27 out of 52 values were BDL; those values above the detection limit
were below not only the allowable, but the standard
Monitor per NPDES Permit
all values were above Allowable
not required - LTMP
all values were BDL
Monitor per NPDES Permit
all values were above Detection Level
Limit per NPDES Permit
39 out of 52 values were BDL
Monitor per LTMP / Limit per NPDES Permit
all values were above Detection Level

JAN-19-1995 17 41 FROM Asheville RO DEHNR TO
WATER QUALITY R P.03
08:2 FROM DFM WATER, DUALITY SECTION TG
RP,U r.k,oie)7
_x i eter(s) are water quality United. For some parameters, the available load capacity of the immediate
receiving water will be consumed. This may affect future water quality basal effluent limitations fora iliou 1
dischargers within this portion of the watershed OR
No parameters are water quality limited, but this discharge may erect future allocations.
INSTREAM MON}T(RlNG REQUIREMENTS
Upstream Location:
jpDownstream Location (site #1):
r � - Djw rn Locatibti (sttt #2):
--� Downstream Location (site #3):
P,meteis;
^Ac.« rl-,e WILL. tfitr; tA..
iN Arn (2Ei :Q-- AttRcGc-cl nnNp, ` -
at least above ftfnll flow iafamiation, (refer attached Note to File)•C� dawn -
aprroxtmatereiy 2,000 ft. below outfsli � de�tmis�e� ,5tvggkn.
on Gunpowder Creek before start of Old Millpond or at SR1002
at SR 1107 ire tide pooled area of Old Millpond Nat arD.
dissolved oxygen., temperature, fecal Colifcrm, cottdactivitY
(for all three sites *)
TN, T?, pH, chlorophyll a, pheophy n a
(for May through September at all tree saes 1 / week)
Special instream ioonitoting locations or monitcding frequenci' S
* Dissolved oxygen, temperature, conductivity, and fecal colifonn shall be sampled three time per week at all three
sites during Jam, duly, August, and September and once per week due the months of the y.
TN, TP, pH, and. chlorophyll -a Shall be monitored at all three sites per during amMay, June, July, August,
and September. pheophytai-a shall be monitored at Downstream site #2 voee pet week diming May, Sure, Ruly,
August,Reg' nerd September. WOO.
cst samples far downstream site #2 be taken between 11:30 am to 1:30 pm.
it
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Has the fat 'ty demonstrated the ability to meet the proposed new limits with existing treatment faellities?
Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be d,lri'vptiate? Yes _ No
If yes, please provide a schedule (and basis for that schedule) with the regional office
recommendation
If no, why not? 1
c„e..; i Couaicioaa
Wasteload sent to EPA? (Major) (Y or N) sif modeled at
(If yes, that attach updated evaluation of facility, including toxins spreadsheet, modeling analysisif
renewal, and description of how it fits into basinwide plan)
Additional Information attached? _ , (Y or N) If yes, Explain with attachments.
tf
TOTAL P. 0t3

Facility Name Lenoir -Gunpowder Creek Waste Water Treatment Plant Permit #NC002337-001
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity 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 38 % (defined as treatment two in the North Carolina procedure document). The permit
holder shall perform guarter(v monitoring using this procedure to establish compliance with the permit
condition. The first test will be performed after thirty days from the effective date of this permit during the
months of Mar., Jun., Sep., and Dec. Effluent sampling for this testing shall be performed at the
NPDES 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
4401 Reedy Creek Road
Raleigh, N.C. 27607
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. ti
7Q10
Permitted Flow
IWC
Basin & Sub -basin
Receiving Stream
County
3.0 cfs
1.2 MGD
38 %
03-08-32
Gunpowder Creek
Caldwell
QCL PIF Version 9/91
Reconunended
Farrell Keough
Date (M.sTf)(7 ►9,g s

Facility Name Lenoir -Gunpowder Creek Waste Water Treatment Plant Permit #NC002337-001
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity 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 52 % (defined as treatment two in the North Carolina procedure document). The permit
holder shall perform Quarterly monitoring using this procedure to establish compliance with the permit
condition. The first test will be performed after thirty days from the effective date of this permit during the
months of Mar., Jun., Sep., and Dec. Effluent sampling for this testing shall be performed at the
NPDES 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
4401 Reedy Creek Road
Raleigh, N.C. 27607
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
Permitted Flow
IWC
Basin & Sub -basin
Receiving Stream
County
3.0 cfs
2.0 MG D
52 %
03-08-32
Gunpowder Creek
Caldwell
QCL PIF Version 9/91
Recommended
Farrell Keough
Date II imitipft.-r, tcti

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Fesr-e vn4-
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Mr. James R. Reid
Environmental Engineer
DEM / NCDEHNR
Interchange Building
59 Woodfin Place
Asheville, N.C. 28801
RE: Gunpowder Creek WWTP (Permit #NC0023736) proposed
monitoring requirements.
Dear Mr. Reid:
This letter is in response to your letter of January 27,
1995. These two options were given for our choice:
1) Monitor an additional downstream site,
approximately 2000 feet from effluent; or
2) Install a flow measuring device to measure
flow either into or from the millpond
impoundment, downstream from the effluent.
The second option listed above is preferable. Reading
the flow from an installed staff gage would be less
costly than monitoring an additional point in the stream.
If you need any more information, please call me at
[phone], or Monte Wall at [phone] .
Sincerely,
T. S. Childers, Jr.
Superintendent WWTP
MAYOR
ROBERT A. GIBBONS
CITY COUNCq.
G. L BERNHARDT
J. N. BROOKS
B. L BUSS
J. E. GEORGE
I. C. JONES
F. H. MOORE
M. O. STRAWN '
POST OFFICE BOX 958 • LENOIR• NORTH CAROLINA 28845-0958 • [phone]

Note to File;
City of Lenior - Gunpowder Creek WWTP
NC0023736
After review of the instream monitoring data taken by this facility, violations of the chlorophyll -a of standard
were noted at downstream site #2 (SR 1107 'pooled area of Old Millpond'), as well as supersaturation of
dissolved oxygen. Unfortunately, these instances cannot be directly correlated with this discharge since
unknown inputs may be taking place between the discharge point and the downstream monitoring site
#2. More information will needed to verify whether this discharge is having a pronounced impact upon the
algal growth in this system.
To obtain this information, it will be requested of the facility that they either add an additional downstream
monitoring site approximately 2,000 ft. below the discharge, or, (and this is the more difficult, but the
preferred option) that the facility gage and obtain flow information either at the head of the impoundment,
(i.e. above SR 1002) or the discharge from the impoundment, (i.e. the dam above the Granite Falls
discharge).
We will need this information to determine the loading, (i.e. mass) input from this facility and whether their
nutrient input is a mitigating factor or whether it is some other input from the surrounding area. We will
request the Region inform us as to the most viable alternative to recommend in the Permit reissuance.

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:
Request #
City of Lenoir - Gunpowder Creek WWTP
NC0023736
75 % Domestic 25 % Industrial
Existing
Renewal with Modification
Gunpowder Creek
C
03-08-32
8048
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7010 (cfs):
Winter 7010 (cfs):
Average Flow (cfs):
3002 (cfs):
IWC (%):
1992
12.9
3.0
4.3
18.0
5.8
38 %
Existing WLA checked: x
Staff Report: x
Topo checked:
USGS Flows confirmed:
IWC Spreadsheet:
Stream Classification:
Nutrient Sensitivity:
Instream Data: x
ez-- . back- ' P� Z. �ue. Kap
r',2.
o.9AZOO - 6.5656 = 0•PHZ33Z6E.49- X 6//0 = WC" nick
1974: effluent limits of 20 mg/l BOD5 ,17 mg/I TKN, 20 mg/I TSS, 200 / 100 mL fecal coliform, 6 - 9 SU pH, for s7Q10 of 2.0 cfs and
discharge of 1.0 mgd.
1975: re -issued under same discharge and 7Q10, but limits now 20 mg/1 BOD5 ,10 mg/I TKN, 30 mg/I TSS, 200 / 100 mL fecal
coliform, 6 - 9 SU pH, and 5.0 mg/l dissolved oxygen.
1976: modeled w/ "Hewlet Packard" and given limits of 30 mg/I BOD5, 20 mg/I NH3-N, 30 mg/I TSS, 200 / 100 mL fecal coliform,
6 - 9 SU pH, and 5.0 mg/l dissolved oxygen. Proposed is written on this form.
1984: remodeled w/ recommendation for Secondary Limits with a 5.0 mg/l dissolved oxygen for 1.0 mgd discharge, (considered
100% Domestic). Granite Falls WWTP -9 miles downstream; no interaction indicated.
1989: during this permit period, facility had toxicity problems and was required, (Administrative Letter) to perform TIE. Letter in WLA
file indicates that ammonia toxicity limit may be required in future due to toxicity failures. Problems with excessive flow were
attributed to both an improperly calibrated flow meter and possible inflow problems, (rainfall events after re -calibration
indicated flow exceedence). Industrial users were suspected of causing toxicity failures. Final WLA limits were for Secondary
Treatment w/ 5.0 mg/I dissolved oxygen and various metals limits and monitoring requirements were added.
1992: This WLA should be reviewed, (excellent modeling and description of recommendations process). Briefly, this facility got an
on -paper expansion; no additional industrial flow was added, (need for extra flow probably due to I & I). The facility went from
1.0 to 1.2 mgd. Ammonia toxicity limits were recommended on Fact Sheet, but not on final WLA. Region requested this limit
be phased in for July, 1995 as facility was not upgrading plant, but only asking for additional flow, (refer attached memo).
Previous models did not include the downstream "Old Millpond" site; Wilson included this, (per previous SOP) in this analysis
and determined that nutrient limits may be appropriate; they were not included in this WLA, but were noted for inclusion upon
any further expansion. Extensive instream monitoring was recommended for future evaluation.
1994: Speculative for expansion to 2.0 mgd was completed. Proposal was modeled and limits of 30 mg/I BOD5 , 2 [4] mg/I NH3-N,
5.0 mg/I dissolved oxygen, 30 mg/I TSS, 200 / 100 mL fecal coliform, 6 - 9 SU pH, and 28.0 µg/I residual chlorine were
recommended. An EA, (due to expansion beyond 0.5 mgd) was required, (attached). Also, instream monitoring for nutrients,
chlorophyll a and pheophytin, (type of pigment in dead and dying algae). It was noted that since IWC went from 38% to 52%,
that toxics would have more stringent limits.
Current Issues P t�� �� uocee to cAlcoli h c - laaopI.� ►1
£ T sc. CIA' Wit! ►Ave to *A? - tt AEI
Preliminary Engineering Report: 3 proposed upgrades - sequencing batch react (SBR) w/ ammonia removal, new c 3rination /
dechiorination facilities, and step aeration. Section 4.2, p. 9 "The proposed WWTP expansion has been designed to achieve an
effluent 10 mg/l BOD, 10 mg/I TSS, and 1.0 mg/I ammonia, all of which are below the speculative effluent limits provided by the
Division of Environmental Management." This document is mainly composed of copied material from the Permit and has little
substantial information as to the effects of the discharge and no information about the toxicity problems.
Basin Report
not specificalyy mentioned
DMR•s
BOD consistently below 20 mg/I, NH3-N consistently below 5.0 mg/I, (10.14 average in January, 1994). Residual chlorine levels are
excessive. Refer toxic spreadsheet brief below. Parameters to be monitored per LIMP: As, Cd, Cr, Cu, CN, Pb, Hg, Ni, Ag, Zn, and
Fluoride. VpouttntI' cam, P (F ROE. - vn- -toxtc.Ta tee rs
instream Data 0�
significant increase in both chlorophyll -a and pheophytin levels at the downstream site #2, (pooled area of Old Millpond) as well as
supersaturated dissolved oxygen conditions.
Staff Report w ett� N orE tv lc, ({0 6E r-- -�
AtiA raca- 6tz
no additional information or recommendations ,°Q- �3ke I p, •y� �� tc�) ��5 � A
o Z,moo fl Qowr d�{70
(� d a able d, s CkA2 F ���
P-�Go2d S � qtAt,p�► ��,� "`d0 knf-dw.� s1-gf7 and �2
�"� �'' �ut'cXt� ~ MI 11 looNO nb W IT-Ni"

Wasteflow (MGD):
BOD5 (mg/I):
NH3N (mgll):
DO (mg/I):
TSS (mg/I):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/l):
011 & Grease (mg/I):
TP (mg/I):
TN (mg/I):
There shall be no discharge
Upstream Location:
Downstream Location (1):
Downstream Location (2):
Parameters:
Existing Limits;
Monthly Averages
1.2
30
monitor
5.0
30
200
6-9
monitor
not required
monitor
monitor
Speculative Limits:
Monthly Averages
Summer Winter
2.0
30 30
2.0 4.0
5.0 5.0
30 30
200 200
6-9 6-9
28.0 28.0
not required not required
monitor monitor
monitor monitor
of floating solids or visible foam in other than trace amounts.
at least 100' above outfall
on Gunpowder Creek before start of Old Millpond or at SR1002
at SR 1107 in the pooled area of Old Millpond
dissolved oxygen, temperature, fecal coliform, conductivity
(for upstream and downstream site #1)
TN, TP, chlorophyll a, pheophytin a, temperature, dissolved oxygen, conductivity
(for May through September at all three sites 2 / month)
Cadmium:
Chromium:
Nickel:
Lead:
Copper:
Sliver:
Zinc:
Cyanide: Max. Pred Cw
Allowable Cw
Fluoride:
Max. Pred Cw
Allowable Cw
Max. Pred Cw
Allowable Cw
Max. Pred Cw
Allowable Cw
Max. Pred Cw
Allowable Cw
Max. Pred Cw
Allowable Cw
Max. Pred Cw
Allowable Cw
Max. Pred Cw
Allowable Cw
Max. Pred Cw
Allowable Cw
1.2 mgd 2.0 mgd
9.6 9.6
5.2 3.9
7.8 7.8
130.6 98.4
Limit per NPDES Permit
consistent values above detection limit w/ a 4.8 Nil maximum value
not required - LTMP
50 out of 52 values were BDL
13.0 13.0 not required - LTMP
229.9 173.2 45 out of 52 vatues were BDL
34.0 34.0
65.3 49.2
356.4 356.4
18.3 13.8
0.0 0.0
0.16 0.12
not required - LTMP
27 out of 52 values were BDL; those vatues above the detection limit
were below not only the allowable, but the standard
Monitor per NPDES Permit
all values were above Allowable
not required - LTMP
all vatues were BDL
437.0 437.0 Monitor per NPDES Permit
130.7 98.4 all vatues were above Detection Level
17.0 17.0
13.1 9.8
4.4 4.4
4.7 3.5
Limit per NPDES Permit
39 out of 52 values were BDL
Monitor per LTMP / Limit per NPDES Permit
all values were above Detection Level
* Note toxic spreadsheet print out of data uses a 2.0 mgd discharge
SI U's
Lenoir Mirror Companyy
Holiday Hosiery Mill
American and Efrid Mills [001 & 002]
Shuford Mills
Effleunt Considerations
metals
textile dyes
cotton and synthetic threads
yam fabric
Lenoir - Gunpowder Creek Waste Water Treatment Plant NC0023736

0
tsao,a
G,ar CAS
-
WN16 walla.
9a.ar ox-ort,31-36,
411-001TC FMLS
WAa16U T_
TR.."-rwc+T luar
NCAVZ.175D
IUOZQC.l)VVV tD toem S bEf
6Elow "LIME. 1)&n,. `
GvopowOCQ. K

Lenoir - Gunpowder Creek Waste Water Treatment Plant NC0023736
Upstream: 100' above discharge
Date
DO
Temp
Saturation
pH
Conduct
Fecal
TP
TN
Chi a
Time
Sep-94
8.9
17
92%
7.3
6.8
66.7
52
>3800
160
0.03
1.97
0.923
0.51
11:05
11:05
Aug-94
8.6
20
95%
7.2
6.5
61.6
50
4100
190
0.02
0.99
1.02
0.63
11:10
11:20
Ju!-94
8.1
21
91%
7.2
6.7
58.8
50.1
33,000
38
0.06
0.81
0.55
1.22
11:25
11:50
Jun-94
8.1
21
91%
9.1
7.6
55.1
35.7
68,000
220
0.06
0.9
3.4
1.16
12:50
2:20
May-94
9.5
16
96%
7.7
7.1
55.3
49.5
800
90
0.05
1.04
1.56
2.3
12:10
2:50
Sep-93
8.5
20
94%
7.3
6.6
82.1
44.6
620
120
0.052
0.71
Aug-93
8.3
22
95%
9.8
7.2
69.8
48.8
2400
110
< 0.4
0.88
JuI-93
8
24
95%
7.0
6.4
56.8
41.6
2700
150
< 0.4
0.81
Jun-93
8.7
20
96%
6.9
6.1
53.4
46
1900
40
May-93
8.7
17
90%
7.4
6.7
49.3
17.3
400
210
DO and Temperature are monthly values. pH, conduct, and fecal values are maximum and minimum for month. TP and TN were only taken once per month. chlorophyll a and pheophytin a are
followed by the time they were taken.

Lenoir - Gunpowder Creek Waste Water Treatment Plant NC0023736
Downstream: SR 1102 (upstream from start of Old MiliDond
Date
DO
Temp
Saturation
pH
Conduct
Fecal
TP
TN
Pheo a
Chi a
Time
Sep-94
8.5
17
88%
7.3
6.7
82
70
3000
140
0.08
1.27
1
0.43
10:45
10:45
Aug-94
8.4
20
92%
7.2
6.4
115.9
46
5800
160
0.11
1.11
2.16
0.491
10:45
11:00
JuI-94
7.7
21
86%
7.2
6.7
102
49.8
44,000
49.8
0.12
1.11
1.75
2.66
11:10
11:25
Jun-94
8
20
88%
7.1
6.4
85.2
43.8
30,000
450
0.12
1.33
4.84
1.5
12:25
12:15
May-94
9.4
15
93%
7.5
6.8
68
51.6
500
260
0.11
1.25
2.22
3.58
11:50
2:35
Sep-93
.8
19
86%
9.3
6.7
89.8
38.2
800
40
0.19
1.4
1.4
1.32
1.03
0.96
12:45
1:20
Aug-93
7.6
22
87%
7.3
6.2
75.9
55.3
21,000
330
0.4
1.2
1.73
1.7
0.94
0.93
12:35
1:05
JuI-93
7.7
24
91%
6.9
6.1
63.7
33.6
1900
25
<0.4
1.3
2.38
3.18
1.24
1.71
2:00
12:30
Jun-93
8.7
19
94%
6.9
6.0
59.6
43.3
2800
40
<0.4
1.1
1.28
1.37
0.92
0.76
12:45
12:15
May-93
8.9
16
90%
7.0
6.6
45.1
16.2
440
170
<0.4
1.1
1.84
1.6
1.09
1.13
11:45
12:55
DO and Temperature are monthly values. pH, conduct, and fecal values are maximum and minimum for month. TP and TN were only taken once per month. chlorophyll a and pheophydn a are
followed by the time they were taken.

Lenoir - Gunpowder Creek Waste Water Treatment Plant NC0023736
Downstream: SR 1107 {pooled area of Old Mill and
Date
DO
Temp
Saturation
pH
Conduct
Fecal
TP
TN
Pheo a
Chi a
Time
Sep-94
8
21
90%
7.5
6.8
63.6
62.9
0.07
0.75
11.26
2.76
10:25
10:30
Aug-94
9.2
25
111%
8.5
7.2
67.9
63.5
•
0.04
0.82
5.13
10.81
10:35
10:45
JuI-94
8.2
26
101%
7.3
7.1
68.9
66.6
0.07
1.05
("Hi
11.41
10:55
11:10
Jun-94
8.6
27
108%
7.1
7.1
62.3
53.6
•
0.11
1.29
46.19
12:10
12:05
May-94
9.3
21
104%
7.6
6.8
68.4
60.6
0.08
0.93
V
15.6
11:35
2:25
Sep-93
8.2
22
94%
9.3
7.1
64.6
64.6
0.08
0.72
4.68
6.28
.6
48.64
12:30
1:05
Aug-93
9.3
27
117%
8.1
7.7
56.7
55.3
*
< 0.4
0.68
5.96
3.37
20.
9.94
12:20
12:55
Jul-93
8.3
30
110%
7.2
7.0
44
41.7
*
< 0.4
0.62
3.58
4.6
11.52
15.33
1:45
12:20
Jun-93
8.7
25
105%
6.6
6.1
76.8
48.2
*
< 0.4
1.1
5.21
5.53
17.8
16.1
12:25
12:00
May-93
8.1
22
93%
7.5
7.0
46.4
17
< 0.4
0.74
4.37
3.83
14.69
19.59
11:30
12:35
DO and Temperature are monthly values. pH, conduct, and fecal values are maximum and minimum for month. TP and TN were only taken once per month. chlorophyll a and pheophytin a are
followed by the time they were taken.

October, 1994 through November, 1993
Fadllty Name
NPDES#=
Qw (MGD)
70102 (cfs)=
1wc (%) =
Lenoir - Gunpowder Creek WWTP
NC0023736
1.20 mgd
3.00 cfs
38.27 %
Cadmium Maximum Value
Max. Pred Cw
Allowable Cw
Chromium Maximum Value
Max. Pred Cw
Allowable Cw
Nickel Maximum Value
Max. Pred Cw
Allowable Cw
Lead Maximum Value
Max. Pred Cw
Allowable Cw
Copper [AI] Maximum Value
Max. Pred Cw
Allowable Cw
Silver [AL] Maximum Value
Max. Pred Cw
Allowable Cw
Zinc [AL] Maximum Value
Max. Pred Cw
Allowable Cw
Cyanide Maximum Value
Max. Pred Cw
Allowable Cw
Fluoride Maximum Value
Max. Pred Cw
Allowable Cw
FINAL RESULTS
4.8
9.6
5.2
6.0
7.8
130.6
10.0
13.0
229.9
20.0
34.0
65.3
132.0
356.4
18.3
190.0
437.00
130.65
10.0
17.0
13.1
2.9
4.35
4.70
LTflr�
QE'11c (3 6OL Valved
C4cLmsuM ✓
c.44
copper,
ca,AN tdE/
Lea o

October, 1994 through November, 1993
Facility Name
NPDES #=
Ow (MOD)
7010a (cis)_
MC (%) =
Lenoir - Gunpowder Creek WWTP
NC0023736
2.00 mgd
3.00 cfs
50.82 %
FINAL RESULTS
Cadmium Maximum Value
Max. Pred Cw
Allowable Cw
Chromium Maximum Value
Max. Pred Cw
Allowable Cw
Nickel Maximum Value
Max. Pred Cw
Allowable Cw
Lead Maximum Value
Max. Pred Cw
Allowable Cw
Copper [AI] Maximum Value
Max. Pred Cw
Allowable Cw
Silver [AL] Maximum Value
Max. Pred Cw
Allowable Cw
Zinc [AL] Maximum Value
Max. Pred Cw
Allowable Cw
Cyanide Maximum Value
Max. Pred Cw
Allowable Cw
Fluoride Maximum Value
Max. Pred Cw
Allowable Cw
4.8
9.6
3.9
6.0
7.8
98.4
10.0
13.0
173.2
20.0
34.0
49.2
132.0
356.4
.13.8
2.5
0.0
0.1 z
190.0
437.00
98.39
10.0
17.0
9.8
2.9
4.35
3.54

October. 1994 through November.1993
Pramtr. Cadmium Parameter. Chromium
Standard. 2 µ it
n BDL.1/2DL 11/2 DL RESULTS
1 0.5 • Std Dev. 1.1
2 0.5 Mean 1.4
3 1.4 C.V. 0.8
4 2.4
5 1.5
6 0.5 • Muft Factor - 2.0
7 0.5 • Max. Value 4.8 Awl
8 0.5 • Max. Pred Cw 9.8 µg1
9 0.5 • Allowable Cw 3.9 µg/1
10 1.6
11 3.1
12 0.5
13 1.1
14 1.7
15 1.6
16 3.2
17 0.5
18 0.5
19 1.5
20 3
21 1.7
22 1.6
23 1.4
24 4.2
25 4.8
28 0.5
27 2.1
28 1.8
29 1.5
30 0.5
31 1.6
32 1.9
33 1.4
34 0.5
35 0.5
38 3.2
37 0.5
38 0.5
39 0.5
40 1.3
41 0.5
42 0.5
43 0.5
44 1.2
45 0.5 •
48 1.8
47 2.5
48 1.2
49 4.3
50 0.5 •
51 0.5 •
52 0.5 •
&andrd. 50 µ91
n BDL.1/2DL 11/2 DL RESULTS
1 2.5 • Std Dev. 0.8
2 2.5 • Mean 2.7
3 6 C.V. 0.3
4 2.5 •
5 2.5 •
8 2.5 • Mult Factor- 1.9
7 2.5 * Max. Value 8.0
8 2.5 • Max. Pred Cw 7.8
9 2.5 • Allowable Cw 98.4
10 2.5 •
11 2.5 •
12 2.5 •
13 2.5 •
14 2.5 •
15 2.5 *
18 2.5 •
17 2.5 •
18 6
19 2.5 •
20 2.5 •
21 2.5 •
22 2.5 •
23 2.5 •
24 2.5 •
25 2.5 •
28 2.5 •
27 2.5 •
28 2.5 •
29 5 *
30 5 •
31 2.5 *
32 2.5 •
33 2.5 •
34 2.5 •
35 2.5 •
38 2.5 •
37 2.5 •
38 2.5 •
39 2.5 •
40 2.5 •
41 2.5 •
42 2.5 •
43 2.5 •
44 2.5 •
45 2.5 •
48 2.5 •
47 2.5 •
48 2.5 •
49 2.5 •
50 2.5 "
51 2.5 •
52 2.5 •
1O
K8
Parameter. Nickel
Standard. 88 RN
n BDL.1/2DL *it 1/2 DL RESULTS
1 10 Std Dev. 1.7
2 5 Mean 5.7
3 5 C.V. 0.3
4 5
5 5
6 5 Mutt Factor- 1.3
7 5 Max. Value 10A µ98
8 5 Max. Prod Cw 13.0 NA
9 5 Allowable Cw 1732 µg8
10 5
11 5
12 10
13 10
14 5
15 5
16 5
17 10
18 10
19 5
20 5
21 5
22 5
23 5
24 5 *
25 5 *
26 5 *
27 5
28 5
29 5
30 5
31 5
32 5
33 5
34 5 •
35 5 *
36 5
37 5 *
38 5 *
39 5 *
40 5 •
41 5 *
42 5 *
43 5 •
44 5 *
45 5 •
48 5 '
47 5 '
4a 5 *
49 10
50 10
51 5 •
52 5 •
1/4/95

October. 1994 through November. 1993
Pwamat r. Lead MINN. Copper CAIJ Pwamatar. Sliver [AL1
Standard. 25 µgel Standard. 7 µgel Standard. 0.08 11
n BDL.12DL •It 12 DL RESULTS
1 10 Std Dev. 8.4
2 20 Mean 10.1
3 5 • C.V. 0.6
4 10
5 5 •
8 5 • Mint Factor - 1.7
7 5 • Max. Value 20.0 µgel
8 5 • Max. Pred Cw 34A µgel
9 20 Allowable Cw 492 µgel
10 5
11 5
12 10
13 20
14 20
15 5
18 5
17 5
16 10
• 19 10
20 20
21 5 '
22 5
23 5 •
24 20
25 20
28 20
27 20
28 20
29 5 '
30 5 •
31 5
32 20
33 10
34 10
35 10
38 5
37 5
38 5 '
39 5 '
40 20
41 20
42 5 •
43 5 •
44 10
45 20
48 5 '
47 5
48 5
49 10
50 10
51 5 •
52 5 •
n BDL-12DL •k1 12 DL RESULTS
1 56 Std Dev. 31.3
2 22 Mean 49.5
3 34 C.V. 0.8
4 35
5 55
6 89 Mull Factor - 2.7
7 132 Max. Value 192A µgel
8 35 Max. Pred Cv 956.4 µgel
9 20 Allowable Cs 13.8 µgel
10 48
11 18
12 44
13 55
14
15
18
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
48
47
48
49
50
51
52
n BDL-12DL 1112 DL RESULTS
1 2.5 • Std Dev. 0.0
2 2.5 • Mean 2.5
3 2.5 •C.V. 0.0
4 2.5 •
5 2.5 •
6 2.5 • Mull Factor - 0.0
7 2.5 •Max. Value 2.5 µgel
8 2.5 •Max. Prod Cw 0.0 µgel
9 2.5 •Allowable Cw 0.1 µgel
10 2.5 •
11 2.5 •
12 2.5 •
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
1/4/95

October. 1994 through November. 1993
Zinc (AL] arm.ar- Cyanide :.mar- Fluoride
- 50 µo4 8tandwd - 5 µgA s' standard- 1.8 mgA
n BDL.1/211L 'M 1/2 DL RESULTS n BD6.1/2DL 'It 1/2 DL RESULTS n BDLr1/213L 111/2 DL RESULTS
1 160 Std Dev. 452 1 2.5 * Std Dev. 1.6 1 2.5 Std Dev. 0.6
2 60 Mean 96.9 2 2.5 Mean 2.8 2 1.6 Mean 1.6
3 70 C.V. 0.6 3 2.5 C.V. 0.6 3 1.9 C.V. 0.4
4 110 4 2.5 4 1.6
5 90 5 2.5 5 2
8 90 Mutt Factor- 2.3 6 2.5 Mutt Factor - 1.7 6 29 Mutt Factor- 1.5
7 190 Max. Value 190.0 14 < 7 2.5 Max. Value 10A nil 7 1.9 Max. Value 2.9 mg+i
8 90 Max. Pred Cw 437.00 µfill a 2.5 Max. Pred Cw 17A NA : 8 1.9 Max. Pred Cw 4.4 mgf
9 20 Allowable Cw 98.4 KO ;;; 9 9 Allowable Cw 9.8 µgA 9 1.7 Allowable Cw 9.5 mgA
10 80 10 7 10 1.7
11 60 11 19 11 0.7
12 100 12 2.5 12 1.1
•
13 140 13 2.5 Ij 13 2
14 14 2.5 14 1.3
15 15 2.5 15 1.2
18 18 2.5 18 1.6
17 17 2.5 17 1.3
18 18 2.4 18 1.6
19 19 1.3 19 2.6
20 20 2.5 20 1.9
21 21 1.5 21 2.4
22 22 0.9 22 0.8
23 23 2.5 23 2
24 24 2.5 24 1.8
25 25 2.5 25 1.6
26 26 2.5 28 0.6
27 27 1:3 27 1.5
28 28 1.4 28 2.8
29 29 2 29 0.4
30 30 2 30 1.9
31 31 2.5 31 1
32 32 2.5 32 0.6
33 33 2.5 33 1.4
34 34 2.5 34 1.4
35 35 2.5 35 1.2
36 36 5 36 1.8
37 37 2.5 37 1.3
38 38 2.5 ' 38 1.3
39 39 2.5 * 39 1.5
40 40 2.5 * 40 2.9
41 41 2.5 * 41 2
42 42 2.5 * 42 1.3
43 43 2.5 * 43
44 44 2.5 * 44
45 45 2.5 * 45
48 48 2.5 * 46
47 47 2.5 * 47
48 48 2.5 * 48
49 49 2.5 * 49
50 50 2.5 • 50
51 51 2.5 ' 51
52 52 2.5 * 52
14195

Page 1
Note for Farrell Keough
From: Tom Poe
Date: Jan 4, 1995 2:46 PM
Subject: RE: Lenoir - Gunpowder Ck NC0023736
To: Farrell Keough
Yes the will continue LTMP for same parameters
Yes I need them back, they are my only copies.
From: Farrell Keough on Wed, Jan 4, 1995 2:37 PM
Subject: Lenoir - Gunpowder Ck NC0023736
To: Tom Poe
I need to know which parameters are to be monitored in the LTMP. Will they continue to be
the ones on these forms you gave me? Also, do you need these forms back?

WHOLE EFFLUENT TOXICITY TESTING 0[SELF-MONITORING SUMMARY] Mon, Dec 19.1994
FACILITY
LAURINBURG-MAX1'ON AIRPORT PII;M CIIR LIM:1.3%
NC0044725/001 ➢egin:I I/1193 Flequcncy: Q P/F A MAR JUN SEP DEC
County: SCOTLAND Region: FRO Subbuin: LUM51
Special
7QI0: 1 1 1.0 I W C('L): 1.3tl ewer
L.AWRENCE INDUSTRIES PERM CIIR LIM: 90%
NC0084328/00I ➢egin:12J1/94 Frequency: Q P/F A FEB MAY AUG NOV
County: AIAMANCII Region: WSRO Subhuin:CPF02
P11Special
7Q Oder.
I0:0 0 IWC(%): 100
LCP PLASTICS LLr1' CIIR TAR:99%(NEW PERMIT 12/10)4)
NC0036366✓OOI Begin:2/22/91 Frequency: Q P/F A FEB MAY AUG NOV NoaComp:
County:GUILPDRD Region: WSRO Subbasin: CPF08
Pli: NA
Special
7Q 10: 0.00 lW C(%):100.0 Order:
LELAND INDUSTRIAL PARK WWI? PERM: 2 Al MAR JUN SEP DEC IIDNoaComp:SWGLE
NC0065676/OOI Begin:6/1/94 Frequency: Q
County:BRUNSWICK Region: WI)SeCia OSubbnsin:CP1,17
PF:0.25 Order:
l
7Q10:600 IWC(%):0.065
I.LNNOX IN TiRNAfIONALJIIEATCRAFI FAC. PERM CIIR UAU '90 GG NOV LRAIJ)
NC00836581001 ' Ikgin:3/1/94 Frequency: Q
MAY
County:NEW IIANOVl1M Region: WIR Special
ubbuin: CP1117
PI,: 0.288 Oulu:
0.0 IWC(%): too
LENOIR, CITY OF- GUNPOWDER CREEK PERM CIIR LIM:38%
NC0023736/001 Begin:10/4/92 Frequency: Q P/F - A MAR JUN SIiP DEC
County: CALDWIIJ- Region: ARO Subbuin: CTB32
PI,: 0 Special
70I 0(1: 2.90 1 WC(71): 7.1.63 Order
R1., I lIREMF.NT
YEAR JAN
y 90 PASS
NonComp:SINGLE B1 -
92 PASS
93 -
U4 --
90
NonComp:SINGUI 81
92
U3
94
90 80,29
91 NONE'
92 -
03 --
94 -
90 -
91 -
92 -
93 -
94 -
90 -
NonComp: B1 -
92 -
03 -
94 -
90 NR
NonCwnp:SINGIJ? 91 -
92 -
93 -
94 PASS
LENOIR, CITY 011- LOWER CREEK W W'TP PER CIIR LIM:40%
A AUG NOV FEB MAY NonComp:SWGLE
County CAL WI Ikgw:l/l/93Re ion: ARO Subbuin: C tl31
Counry:CA1.DWI1J. B
Special
4.08
7Q10: 9.3 1 W C(%): 40.43 Order.
L17(INCPON )U GIONAL W W'I•p PIiRM CIIR LIM:56%
NC0055786/001 Begin:6/1/94 Frequency: Q P/F A FEB MAY AUG NOV
County: DAVIDSON Region: WSRO Subbuin: YADO7
0 Special
7Q10: 6.70 IWC(%): 55.99 Order.
LIBERTY FABRICS. INC. PERM: 24ER WE AC LIM NO AC MORT' 90% FIND
A MAR JUN SEP DEC NonComp:SINGLE
NC00277101OO1 ➢egin:8/1/92 Frequency: Q
County:MAR11N Region: WARO Subbuin: ROA09
Special
7: 0.450 Order.
7Q10: 1200 IWC(%):0.06
LIU.ING1'ON W WTP PERM: 241IR AC P/11 LIM 90% (FILL))
A JAN AI'R JUL OCT NonConlp:SINGIJ3
NC0021636/001 Bcgin:2/1/94 Frcyllrncy: Q
County:l IAIW LTf Region: FRO Subbuin: CPI'07
Special
7Q 0.6 Order.
550.0 iWC(%):0.17
0 2 consecutive failures = significant n
IJi61TID:
I'11IlM - Parton Nwp,iwmour I.IfI' -
Benin = Pont nuauh rultrcJ 74110 -
1111= Permitted now (MGD) IWC
Data Notation: f - FatherJ Minnow: •
Reporting Notation: --- = Dula not rcq
90 --
91 -
92 -
93 -
94 -
y 90 PASS
NonComp:SINGIE 91 -
92 -
93 -
04 -
90 FAILI
91 FAILI
92 PASSI
93
94 Olt
90 PASSI
91 PASSI
92 PASSI
93 PASSI
94 30.91
11
PASS
PASS
MAR
PASS
PR
Na
PASS
PASS
APR
PASS
11.2 NT 35.5
PASS
PASS
PASS
PR
PASS
PASS
PASS
PASS
FAIL
PASS
PASSSIG
PASS(s)
PASS
FAILI
PASSI
FAILI
52.31
MAY
00.6
PASS
PASS
PASS
II 1N
PASS
PASS
LATE
PASS
l'A:1S
1111.
PASS
AUG
20.5 15.5 Nil
- - PASS
- - PASS
- - Nil/PASS
FAIL
SEP
PASS
PASS
PASS
NNPASS
IAII
>90
FAIL
FAILI
OCT
I'AtIti
NONE
PASS
PASSI
-- -• - NR/FAILSIG LATE.LATE LATE
PASS
PASS
FAIL
PASS
PASS
PASS
FAILI
PASSI
PASSI
54.01,62.31f PASSI
fit
- PASSI
- PASSI
PASSI
21.21,<12.51 >1001
LATE
FAILI
FAIUFAI
PASSI
PASS
PASS
PASS
PASS
PASS
FAIL
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
FAILI FAILI
FAIU FAILI
>1001,PASS PASSI
PASSI
PASSI
PASSI
35.41
49.21
PASS
FAILI
FAILI
PASSI
PASSI
PASSI
PASSI -
FAILI 1'R
PASSI.PASS -
PASS
FAIL
PASS
PASS
14i1
PASS
PASS
PASS
PASS
FAILI
PASSI
oocomplionce Y Pre 1990 Data Available
17 W tt (bay when Jiw•ha1 ¢iue: 11-
A
g uw. AI'1aylI hen tli Nll. 1
L4(otot .lie.0 vo !Alm- lluala.t 1reNp1.111•y -n't tttt mlel lllll100111nenry• 0- u 1ng 11a:1eaoa. wl uu,wld- q ul"ul .lu0lc W iilule 111 Muni Semiannually: Al Nyl0i ea. JAN,
InoI eiug W emu taw nuw CnlGunl (el.) A = 1! Y
%= eriod nl wise concentration Mvsi Peron Pass/Fadvue:-Mon lit stated
a Acute CIIR = Chronic
test
- led; NR • No repo rte ; My-iBeginning
el inning of Quarter Chronicvalue:
Activity Sttatus:tv of 1-c�tivee.N - at
luued(I'oicons t- truc ): 11 - Active but not discharging; Jam available for mouth
aired; NR • Not reported; ( ) • 8 B 31
PASS
PASS
PASS
FAIL
PASS
PASS
PR
FAIU,bl
FAILI
PASSI
NR/PASSI
PASSI
FAILI
PASS
FAILI
FAILI
PASSI
PASSI
PASSI
PASSI
Nl
NI
NOV
>90
PASS
PASS
PASS
LAIE
PASS
PASS
PASS
PASS
PASS
PASS
PASS
FAILI
PASSI
PASSI
48.01
Ply
FAIL
PASS
PASS
NONE
PASS
PASS
PASS
PASS
FAIL
PASS
PASS
FAILI
PASSI
PASSI
NIVLATEI
NRMTE
Iliu•onlinucd nunlilnliog tcquirvuu'ul: IS- Conducting indc(icntkni study
p-
l'uuet l' pilau,. Itc,pinanuul
in question SIG = ORC sigivaure mulct!

SOC PRIORITY PROJECT: Yes No X
IF YES, SOC NUMBER
TO: PERMITS AND ENGINEERING UNIT
WATER QUALITY SECTION
ATTENTION: Greg Nizich
DATE: November 17, 1994
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY Caldwell
PERMIT NUMBER NCO 023736
PART I - GENERAL INFORMATION
1. Facility and Address: City of Lenoir, Gunpowder Plant
Post Office Box 958
Lenoir, North Carolina 28645
2. Date of Investigation: 3/18/94 & 11/4/94
3. Report Prepared By: James R. Reid
4. Persons Contacted and Telephone Number: T.S. Childers, Mike Pipes
704-757-2176
5. Directions to Site: From the intersection of Highway 321 and
SR 1809 (South of Lenoir), travel Northeast on SR 1809
approximately 0.4 mile to the bridge over Gunpowder Creek.
Just beyond the bridge, turn right onto an unnamed gravel
road (proceeding through the gate). Travel approximately 0.8
mile to the Gunpowder Creek WWTP.
6. Discharge Point(s), List for all discharge points:
Latitude: 350 50' 34"
Longitude: 820 27' 45"
Attach a USGS map extract and indicate treatment facility site and
discharge point on map.
U.S.G.S. Quad No. D13SW U.S.G.S. Quad Name Granite Falls, NC
7. Site size' and expansion area consistent with application?
X Yes No If No, explain:
Page 1

8. Topography (relationship to flood plain included): Fill area
above flood plain
9. Location of nearest dwelling: >500 feet
10. Receiving stream or affected surface waters: Gunpowder Creek
a.
b.
c.
Classification: WS-IV
River Basin and Subbasin No.: CTB 030832
Describe receiving stream features and pertinent downstream
uses: Water supply, agricultural support, wildlife,
recreation.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted
Design Capacity)
2 MGD (Ultimate
b. What is the current permitted capacity of
Treatment facility? 1.2 MGD
the Wastewater
c. Actual treatment capacity of the current facility (current
design capacity 1.2 MGD
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two years:
None.
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Existing -
influent pump station, influent bar screen, grit removal
unit, parallel contact stabilization plants, parallel
nitrification basins, parallel polishing ponds, chlorination.
f. Please provide a description of proposed wastewater treatment
facilities: Proposed - enlargement of influent pump station,
conversion of existing contact and nitrification basins to a
4-cell SBR, removal of 1 polishing pond and replacement with
a chlorine contact basin, conversion of the other polishing
pond to a post equalization basin with effluent pump station,
addition of dechlorination apparatus, addition of a cascade
aerator, addition of a 120,000 gallon sludge holding tank.
g-
Possible toxic impacts to surface waters: None known or
anticipated.
h. Pretreatment Program (POTWs only):
in development approved X
should be required not needed
Page 2

2. Residuals handling and utilization/disposal scheme: Pumped and
hauled to the City of Lenoir's Lower Creek Plant which is
upgrading and expanding their sludge processing facility. The
City has yet to decide whether to dry sludge in a gas fired oven
or to use a lime pasteurization process, but has made application
for A-to-C for both processes. Either choice will be PFRP.
a. If residuals are being land applied, please specify DEM
Permit Number
Residuals Contractor
Telephone Number
b. Residuals stabilization: PSRP PFRP OTHER
c. Landfill:
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating sheet): IV
4. SIC Codes (s) : 4952
Wastewater Code(s) of actual wastewater, not particular facilities
i.e., non -contact cooling water discharge from a metal plating
company would be 14, not 56.
Primary 01 Secondary 55, 64
Main Treatment Unit Code: 134 3
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:
Toxicity and appropriate constituents are currently included in
the facility's permit. Subject action is for expansion & upgrade
of existing plant.
3. Important SOC, JOC, or Compliance Schedule dates: (Please
indicate)
Submission of Plans and Specifications
Begin Construction
Complete Construction
Date
Page 3

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: Insufficient Land.
Connection to Regional Sewer System: The Gunpowder plant is the
regional system.
Subsurface: Insufficient land, too large flow.
Other disposal options:
5. Other Special Items:
PART IV - EVALUATION AND RECOMMENDATIONS
Issue a permit for the expanded Gunpowder Treatment Plant.
Signature of Rt Preparer
Water Quality Regional Supervisor
Date
Page 4

MODEL RESULTS
Discharger : LENOIR-GUNPOWDER CREEK
Receiving Stream : GUNPOWDER CREEK
SUMMER
SUMMER POSTSSOOC BOD=30, NH=10,
DO=5, QW=1.22 MGD
The End D.O. is 8.24 mg/1.
The End CBOD is 0.01 mg/l.
The End NBOD is 0.00 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 3.40 4.70 7
Reach 1
Reach 2
Reach 3
Reach 4
Reach 5
Reach 6
Reach 7
Reach 8
Reach 9
Segment 2 7.96 0.00 1
Reach 1
Reach 2
Reach 3
60.00 45.00 5.00 1.22000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
'5-,,/' ! T 2Z m;(

*** MODEL SUMMARY DATA ***
Discharger
Receiving Stream :
Summer 7Q10
Design Temperature:
LENOIR-GUNPOWDER CREEK Subbasin : 030832
GUNPOWDER CREEK Stream Class: C
3.0 Winter 7Q10 : 4.3
25.0
LENGTH SLOPE VELOCITY DEPTH Kd Kd 1 Ka 1 Ka 1 KN
mile ft/mi fps ft design @20° design @20° design
Segment 1
Reach 1
2.30
18.20
0.352
1.02 1 0.39
0.31
12.87
11.55
0.44
Segment 1
Reach 2
1.60
11.10
0.318 1 1.16
0.34
0.27
7.09
6.36
0.44
Segment 1
Reach 3
0.40
6.25
0.275 1 1.29 1 0.30
0.24
3.45
3.09I 0.44
Segment 1
Reach 4
0.05
6.25
0.294 1 1.43 1 0.30
0.24
3.69
3.31I 0.44
Segment 1
Reach 5
0.05
3.00
0.238 1 1.59 1 0.27
0.22
1.43
1.28I 0.44
Segment 1
Reach 6
0.05
1.00
0.173 1 1.86 1 0.26
0.21
0.35
0.31I 0.44
Segment 1
Reach 7
0.50
0.10
0.008 1 3.50 1 0.25
0.20
0.64
0.57I 0.44
Segment 1
Reach 8
0.50
0.10
0.004 1 7.00 1 0.25
0.20
0.32
0.29I 0.44
Segment 1
Reach 9
0.50
0.10
0.003 10.50
0.25
0.20
0.22
0.20
0.44
Segment 2
Reach 1
0.50
0.10
0.002
14.00
0.25
0.20
0.22
0.20
0.44
Segment 2
Reach 2
0.50
0.10
0.002
17.50
0.25
0.20
0.22
0.20
0.44
Segment
Reach
0.15
0.10
0.100
2.55
0.26
0.20
0.02
0.02
0.44

Flow
cfs
Segment 1 Reach 1
Waste
Headwaters
Tributary
* Runoff
1.891
3.000
0.000
0.490
Segment 1 Reach 2
Waste 0.000
Tributary 0.000
* Runoff 0.490
Segment 1 Reach 3
Waste 0.000
Tributary 0.000
* Runoff 0.490
Segment 1 Reach 4
Waste 0.000
Tributary 2.000
* Runoff 0.210
Segment 1 Reach 5
Waste 0.000
Tributary 0.000
* Runoff 0.210
Segment 1 Reach 6
Waste 0.000
Tributary 0.000
* Runoff 0.210
Segment 1 Reach 7
Waste 0.000
Tributary 0.000
* Runoff 0.210
Segment 1 Reach 8
Waste 0.000
Tributary 0.000
* Runoff 0.210
Segment 1 Reach 9
Waste 0.000
Tributary 0.000
* Runoff 0.210
CBOD
mg/1
NBOD
mg/1
60.000 45.000
2.000 1.000
2.000 1.000
2.000 1.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
D.O.
mg/1
5.000
7.440
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440

Segment 2 Reach 1
Waste 0.000
Headwaters 0.000
Tributary 0.000
* Runoff 0.210
Segment 2 Reach 2
Waste 0.000
Tributary 0.200
* Runoff 0.210
Segment 2 Reach 3
Waste 0.000
Tributary 0.000
* Runoff 0.210
0.000
2.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
* Runoff flow is in cfs/mile
0.000
1.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
7.440
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440

I Seg # I Reach # I Seg Mi I D.O. I CBOD
1 1 0.00 6.50 24.42
1 1 0.10 6.59 24.04
1. 1 0.20 6.66 23.66
1 1 0.30 6.73 23.29
1 1 0.40 6.78 22.93
1 1 0.50 6.83 22.57
1 1 0.60 6.87 22.22
1 1 0.70 6.91 21.88
1 1 0.80 6.94 21.55
1 1 0.90 6.97 21.23
1 1 1.00 7.00 20.91
1 1 1.10 7.03 20.60
1 1 1.20 7.05 20.29
1 1 1.30 7.07 19.99
1 1 1.40 7.09 19.70
1 1 1.50 7.11 19.41
1 1 1.60 7.13 19.13
1 1 1.70 7.15 18.85
1 1 1.80 7.17 18.58
1 1 1.90 7.18 18.32
1 1 2.00 7.20 18.06
1 1 2.10 7.22 17.80
1 1 2.20 7.23 17.55
1 1 2.30 7.25 17.30
1 2 2.30 7.25 17.30
1 2 2.40 7.18 17.07
1 2 2.50 7.12 16.84
1 2 2.60 7.07 16.62
1 2 2.70 7.03 16.39
1 2 2.80 7.00 16.18
1 2 2.90 6.98 15.96
1 2 3.00 6.96 15.75
1 2 3.10 6.95 15.55
1 2 3.20 6.94 15.35
1 2 3.30 6.93 15.15
1 2 3.40 6.93 14.95
1 2 3.50 6.93 14.76
1 2 3.60 6.94 14.57
1 2 3.70 6.94 14.39
1 2 3.80 6.95 14.21
1 2 3.90 6.96 14.03
1 3 3.90 6.96 14.03
1 3 3.94 6.92 13.96
1 3 3.98 6.89 13.88
1 3 4.02 6.86 13.81
1 3 4.06 6.83 13.74
1 3 4.10 6.81 13.67
1 3 4.14 6.78 13.61
1 3 4.18 6.75 13.54
1 3 4.22 6.73 13.47
1 3 4.26 6.71 13.40
1 3 4.30 6.69 13.33
1 4 4.30 6.85 10.81
1 4 4.31 6.85 10.81
1 4 4.32 6.85 10.80
1 4 4.33 6.85 10.79
SUMMER
SUMMER POSTSOC BOD=30, NH=10,
D0=5, QW=1.22 MGD
NBOD ( Flow
18.01 4.89
17.71 4.94
17.41 4.99
17.12 5.04
16.83 5.09
16.56 5.14
16.28 5.19
16.02 5.23
15.76 5.28
15.50 5.33
15.25 5.38
15.01 5.43
14.77 5.48
14.54 5.53
14.31 5.58
14.09 5.63
13.87 5.68
13.65 5.72
13.44 5.77
13.23 5.82
13.03 5.87
12.83 5.92
12.64 5.97
12.45 6.02
12.45 6.02
12.25 6.07
12.06 6.12
11.87 6.17
11.69 6.21
11.51 6.26
11.33 6.31
11.15 6.36
10.98 6.41
10.81 6.46
10.65 6.51
10.49 6.56
10.33 6.61
10.18 6.66
10.02 6.70
9.87 6.75
9.73 6.80
9.73 6.80
9.66 6.82
9.60 6.84
9.54 6.86
9.48 6.88
9.42 6.90
9.36 6.92
9.30 6.94
9.24 6.96
9.18 6.98
9.12 7.00
7.31 9.00
7.31 9.00
7.30 9.00
7.29 9.00

1 4 4.34 6.84 10.78 7.28 9.01
1 4 4.35 6.84 10.77 7.27 9.01
1 5 4.35 6.84 10.77 7.27 9.01
1 5 4.36 6.83 10.76 7.26 9.01
1 5 4.37 6.82 10.75 7.25 9.01
1 5 4.38 6.81 10.74 7.24 9.01
1 5 4.39 6.80 10.73 7.23 9.02
1 5 4.40 6.79 10.72 7.23 9.02
1 6 4.40 6.79 10.72 7.23 9.02
1 6 4.41 6.77 10.71 7.21 9.02
1 6 4.42 6.75 10.70 7.20 9.02
1 6 4.43 6.73 10.69 7.19 9.03
1 6 4.44 6.71 10.67 7.17 9.03
1 6 4.45 6.70 10.66 7.16 9.03
1 7 4.45 6.70 10.66 7.16 9.03
1 7 4.50 5.19 9.68 6.05 9.04
1 7 4.55 4.24 8.78 5.10 9.05
1 7 4.60 3.70 7.97 4.31 9.06
1 7 4.65 3.45 7.23 3.64 9.07
1 7 4.70 3.40 6.57 3.07 9.08
1 7 4.75 3.50 5.96 2.59 9.09
1 7 4.80 3.69 5.41 2.19 9.10
1 7 4.85 3.94 4.91 1.85 9.11
1 7 4.90 4.22 4.46 1.56 9.12
1 7 4.95 4.52 4.05 1.32 9.13
1 8 4.95 4.52 4.05 1.32 9.13
1 8 5.00 4.38 3.34 0.94 9.15
1 8 5.05 4.48 2.75 0.67 9.16
1 8 5.10 4.72 2.27 0.48 9.17
1 8 5.15 5.02 1.87 0.34 9.18
1 8 5.20 5.36 1.55 0.25 9.19
1 8 5.25 5.70 1.28 0.18 9.20
1 8 5.30 6.02 1.05 0.13 9.21
1 8 5.35 6.31 0.87 0.09 9.22
1 8 5.40 6.58 0.72 0.07 9.23
1 8 5.45 6.82 0.59 0.05 9.24
1 9 5.45 6.82 0.59 0.05 9.24
1 9 5.50 6.98 0.46 0.03 9.25
1 9 5.55 7.14 0.36 0.02 9.26
1 9 5.60 7.29 0.28 0.01 9.27
1 9 5.65 7.42 0.22 0.01 9.28
1 9 5.70 7.55 0.17 0.01 9.29
1 9 5.75 7.65 0.13 0.01 9.30
1 9 5.80 7.75 0.10 0.00 9.31
1 9 5.85 7.83 0.08 0.00 9.32
1 9 5.90 7.90 0.07 0.00 9.33
1 9 5.95 7.96 0.05 0.00 9.34
2 1 0.00 7.96 0.05 0.00 9.34
2 1 0.05 8.03 0.04 0.00 9.36
2 1 0.10 8.08 0.03 0.00 9.37
2 1 0.15 8.12 0.02 0.00 9.38
2 1 0.20 8.16 0.01 0.00 9.39
2 1 0.25 8.18 0.01 0.00 9.40
2 1 0.30 8.20 0.01 0.00 9.41
2 1 0.35 8.21 0.01 0.00 9.42
2 1 0.40 8.22 0.01 0.00 9.43
2 1 0.45 8.23 0.01 0.00 9.44
2 1 0.50 8.23 0.01 0.00 9.45
2 2 0.50 8.22 0.05 0.02 9.65
2 2 0.55 8.21 0.03 0.01 9.66

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2'
2
2
2
Seg #
2 0.60 8.21 0.02 0.01 9.67
2 0.65 8.21 0.02 0.00 9.68
2 0.70 8.22 0.01 0.00 9.69
2 0.75 8.22 0.01 0.00 9.70
2 0.80 8.23 0.01 0.00 9.71
2 0.85 8.23 0.01 0.00 9.72
2 0.90 8.24 0.01 0.00 9.73
2 0.95 8.24 0.01 0.00 9.74
2 1.00 8.24 0.01 0.00 9.75
3 1.00 8.24 0.01 0.00 9.75
3 1.01 8.24 0.01 0.00 9.76
3 1.02 8.24 0.01 0.00 9.76
3 1.03 8.24 0.01 0.00 9.76
3 1.04 8.24 0.01 0.00 9.76
3 1.05 8.24 0.01 0.00 9.77
3 1.06 8.24 0.01 0.00 9.77
3 1.07 8.24 0.01 0.00 9.77
3 1.08 8.24 0.01 0.00 9.77
3 1.09 8.24 0.01 0.00 9.77
3 1.10 8.24 0.01 0.00 9.78
3 1.11 8.24 0.01 0.00 9.78
3 1.12 8.24 0.01 0.00 9.78
3 1.13 8.24 0.01 0.00 9.78
3 1.14 8.24 0.01 0.00 9.78
3 1.15 8.24 0.01 0.00 9.79
Reach # I Seg Mi I D.O. I CBOD I NBOD I Flow I

MODEL RESULTS
Discharger : LENOIR-GUNPOWDER CREEK
Receiving Stream : GUNPOWDER CREEK
SUMMER
SUMMER PRESOCMODEL BOD=30, NH=
10, DO =
The End D.O. is 8.24 mg/l.
The End CBOD is 0.01 mg/l.
The End NBOD is 0.00 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 3.69 4.70 7
Reach 1
Reach 2
Reach 3
Reach 4
Reach 5
Reach 6
Reach 7
Reach 8
Reach 9
Segment 2 7.97 0.00 1
Reach 1
Reach 2
Reach 3
60.00 45.00 5.00 1.12000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
0.00 0.00 0.00 0.00000
S'4W,, 91Z
4

*** MODEL SUMMARY DATA ***
Discharger
Receiving Stream
Summer 7Q10
Design Temperature:
LENOIR-GUNPOWDER CREEK Subbasin : 030832
GUNPOWDER CREEK Stream Class: C
3.0 Winter 7Q10 : 4.3
25.0
LENGTH SLOPE VELOCITY 1 DEPTH Kd Kd 1 Ka 1 Ka 1 KN
mile ft/mi fps ft design @20° design @20° design
Segment 1
Reach 1
2.30
18.20
0.345
1.01
0.39
0.31
12.60
11.30 0.44
Segment 1
Reach 2
1.60
11.10
0.312
1.16 1 0.33
0.27
6.96
6.24I 0.44
Segment 1
Reach 3
0.40
6.25
0.270
1.29
0.30
0.24
3.39
3.04
0.44
Segment 1
Reach 4
O.OSI 6.25
0.290
1.43
0.30
0.24
3.64 1 3.26
0.44
Segment 1
Reach 5
0.05
3.00
0.235
1.59
0.27
0.22
1.41
1.27
0.44
Segment 1
Reach 6
0.05
1.00
0.171
1.86
0.26
0.21
0.34
0.31I 0.44
Segment 1
Reach 7
0.50
0.10
0.008
3.50
0.25
0.20
0.64
0.57
0.44
Segment 1
Reach 8
0.50
0.10
0.004
7.00
0.25
0.20
0.32
0.29
0.44
Segment 1
Reach 9
o.sol 0.10
0.003
10.50
0.25
0.20
0.22
0.20
0.44
Segment 2
Reach 1
0.50
0.10
0.002
14.00
0.25
0.20
0.22
0.20
0.44
Segment 2
Reach 2
0.50
0.10
0.002
17.50
0.25 1 0.20
0.22 1 0.20
0.44
Segment 2
Reach 3
0.15
0.10
0.100
2.53
0.26
0.20
0.02
0.02I 0.44

Flow
cfs
Segment 1 Reach 1
Waste
Headwaters
Tributary
* Runo f f
1.736
3.000
0.000
0.490
Segment 1 Reach 2
Waste
Tributary
* Runo f f
0.000
0.000
0.490
Segment 1 Reach 3
Waste 0.000
Tributary 0.000
* Runoff 0.490
Segment 1 Reach 4
Waste 0.000
Tributary 2.000
* Runoff 0.210
Segment 1 Reach 5
Waste 0.000
Tributary 0.000
* Runoff 0.210
Segment 1 Reach 6
Waste 0.000
Tributary 0.000
* Runoff 0.210
Segment 1 Reach 7
Waste 0.000
Tributary 0.000
* Runoff 0.210
Segment 1 Reach 8
Waste
Tributary
* Runo f f
0.000
0.000
0.210
Segment 1 Reach 9
Waste 0.000
Tributary 0.000
* Runoff 0.210
CBOD 1 NBOD
mg/1 mg/1
60.000
2.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
0.000
2.000
2.000
45.000
1.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
0.000
1.000
1.000
D.O.
mg/1
5.000
7.440
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440

I Seg #
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Reach # I Seg Mi I D.O.
1 0.00 6.55
1 0.10 6.63
1 0.20 6.71
1 0.30 6.77
1 0.40 6.83
1 0.50 6.87
1 0.60 6.92
1 0.70 6.95
1 0.80 6.98
1 0.90 7.01
1 1.00 7.04
1 1.10 7.07
1 1.20 7.09
1 1.30 7.11
1 1.40 7.13
1 1.50 7.15
1 1.60 7.17
1 1.70 7.19
1 1.80 7.20
1 1.90 7.22
1 2.00 7.24
1 2.10 7.25
1 2.20 7.27
1 2.30 7.28
2 2.30 7.28
2 2.40 7.22
2 2.50 7.16
2 2.60 7.12
2 2.70 7.08
2 2.80 7.05
2 2.90 7.03
2 3.00 7.01
2 3.10 7.00
2 3.20 6.99
2 3.30 6.99
2 3.40 6.99
2 3.50 6.99
2 3.60 6.99
2 3.70 7.00
2 3.80 7.00
2 3.90 7.01
3 3.90 7.01
3 3.94 6.98
3 3.98 6.95
3 4.02 6.92
3 4.06 6.89
3 4.10 6.87
3 4.14 6.84
3 4.18 6.82
3 4.22 6.80
3 4.26 6.77
3 4.30 6.75
4 4.30 6.91
4 4.31 6.91
4 4.32 6.90
4 4.33 6.90
CBOD
23.26
22.88
22.51
22.15
21.80
21.46
21.12
20.79
20.47
20.15
19.84
19.54
19.25
18.96
18.67
18.40
18.12
17.86
17.60
17.34
17.09
16.85
16.60
16.37
16.37
16.14
15.92
15.71
15.49
15.28
15.08
14.88
14.68
14.49
14.30
14.11
13.93
13.75
13.57
13.40
13.23
13.23
13.16
13.09
13.02
12.95
12.89
12.82
12.76
12.69
12.63
12.56
10.17
10.17
10.16
10.15
SUMMER
SUMMER PRESOCMODEL BOD=30, NH=
10, DO =5.
NBOD I Flow I
17.13 4.74
16.83 4.79
16.54 4.83
16.26 4.88
15.98 4.93
15.71 4.98
15.45 5.03
15.19 5.08
14.93 5.13
14.69 5.18
14.45 5.23
14.21 5.28
13.98 5.32
13.75 5.37
13.53 5.42
13.31 5.47
13.10 5.52
12.89 5.57
12.69 5.62
12.49 5.67
12.30 5.72
12.11 5.77
11.92 5.81
11.74 5.86
11.74 5.86
11.55 5.91
11.36 5.96
11.18 6.01
11.00 6.06
10.83 6.11
10.66 6.16
10.49 6.21
10.33 6.26
10.17 6.30
10.01 6.35
9.86 6.40
9.70 6.45
9.56 6.50
9.41 6.55
9.27 6.60
•9.13 6.65
9.13 6.65
9.07 6.67
9.01 6.69
8.95 6.71
8.89 6.73
8.83 6.75
8.77 6.76
8.72 6.78
8.66 6.80
8.60 6.82
8.55 6.84
6.84 8.84
6.83 8.85
6.83 8.85
6.82 8.85

1 4 4.34 6.90 10.14 6.81 8.85
1 4 4.35 6.90 10.13 6.80 8.85
1 5 4.35 6.90 10.13 6.80 8.85
1 5 4.36 6.89 10.12 6.79 8.86
1 5 4.37 6.88 10.11 6.78 8.86
1 5 4.38 6.87. 10.10 6.77 8.86
1 5 4.39 6.86 10.10 6.77 8.86
1 5 4.40 6.85 10.09 6.76 8.86
1 6 4.40 6.85 10.09 6.76 8.86
1 6 4.41 6.83 10.08 6.74 8.87
1 6 4.42 6.81 10.06 6.73 8.87
1 6 4.43 6.80 10.05 6.72 8.87
1 6 4.44 6.78 10.04 6.71 8.87
1 6 4.45 6.76 10.03 6.70 8.87
1 7 4.45 6.76 10.03 6.70 8.87
1 7 4.50 5.35 9.10 5.65 8.89
1 7 4.55 4.47 8.26 4.77 8.90
1 7 4.60 3.96 7.50 4.03 8.91
1 7 4.65 3.73 6.80 3.40 8.92
1 7 14.70 3.69 6.18 2.87 8.93
1 7 4.75 3.79 5.60 2.43 8.94
1 7 4.80 3.97 5.09 2.05 8.95
1 7 k.85 4.20 4.62 1.73 8.96
1 7 )4.90 4.47 4.19 1.46 8.97
1 7 \4.95 4.75 3.81 1.23 8.98
1 8 14.95 4.75 3.81 1.23 8.98
1 8 i5.00 4.62 3.14 0.88 8.99
1 8 .05 4.71 2.59 0.63 9.00
1 8 .10 4.93 2.14 0.45 9.01
1 8 5.15 5.22 1.76 0.32 9.02
1 8 5.20 5.54 1.45 0.23 9.03
1 8 5.25 5.85 1.20 0.17 9.04
1 8 5.30 6.15 0.99 0.12 9.05
1 8 5.35 6.43 0.82 0.09 9.06
1 8 5.40 6.68 0.68 0.06 9.07
1 8 5.45 6.91 0.56 0.04 9.08
1 9 5.45 6.9.1 0.56 0.04 9.08
1 9 5.50 7.06 0.43 0.03 9.10
1 9 5.55 7.20 0.34 0.02 9.11
1 9 5.60 7.34 0.26 0.01 9.12
1 9 5.65 7.47 0.20 0.01 9.13
1 9 5.70 7.59 0.16 0.01 9.14
1 9 5.75 7.69 0.13 0.00 9.15
1 9 5.80 7.78 0.10 0.00 9.16
1 9 5.85 7.85 0.08 0.00 9.17
1 9 5.90 7.92 0.06 0.00 9.18
1 9 5.95 7.97 0.05 0.00 9.19
2 1 0.00 7.97 0.05 0.00 9.19
2 1 0.05 8.04 0.04 0.00 9.20
2 1 0.10 8.09 0.03 0.00 9.21
2 1 0.15 8.13 0.02 0.00 9.22
2 1 0.20 8.16 0.01 0.00 9.23
2 1 0.25 8.18 0.01 0.00 9.24
2 1 0.30 8.20 0.01 0.00 9.25
2 1 0.35 8.21 0.01 0.00 9.26
2 1 0.40 8.22 0.01 0.00 9.27
2 1 0.45 8.23 0.01 0.00 9.28
2 1 0.50 8.23 0.01 0.00 9.29
2 2 0.50 8.22 0.05 0.02 9.49
2 2 0.55 8.21 0.03 0.01 9.51

1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Seg #
1
2 0.60 8.21 0.02 0.01 9.52
2 0.65 8.21 0.02 0.00 9.53
2 0.70 8.22 0.01 0.00 9.54
2 0.75 8.22 0.01 0.00 9.55
2 0.80 8.23 0.01 0.00 9.56
2 0.85 8.23 0.01 0.00 9.57
2 0.90 8.24 0.01 0.00 9.58
2 0.95 8.24 0.01 0.00 9.59
2 1.00 8.24 0.01 0.00 9.60
3 1.00 8.24 0.01 0.00 9.60
3 1.01 8.24 0.01 0.00 9.60
3 1.02 8.24 0.01 0.00 9.60
3 1.03 8.24 0.01 0.00 9.61
3 1.04 8.24 0.01 0.00 9.61
3 1.05 8.24 0.01 0.00 9.61
3 1.06 8.24 0.01 0.00 9.61
3 1.07 8.24 0.01 0.00 9.61
3 1.08 8.24 0.01 0.00 9.62
3 1.09 8.24 0.01 0.00 9.62
3 1.10 8.24 0.01 0.00 9.62
3 1.11 8.24 0.01 0.00 9.62
3 1.12 8.24 0.01 0.00 9.62
3 1.13 8.24 0.01 0.00 9.63
3 1.14 8.24 0.01 0.00 9.63
3 1.15 8.24 0.01 0.00 9.63
Reach # I Seg Mi ( D.O. 1 CBOD I NBOD I Flow I