NC0026646_Wasteload Allocation_19911223

NPDES DOCUHENT SCANNING COVER SHEET
NC0026646
Pilot Mountain WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
December 23, 1991
This document is printed on reuise paper - ignore any
content on the x-eYerise reside

r;� t pro-•-�
PERMIT NO: oa 2c 4
FACILITY NAME- W/T 07" , !lb 0(,,t 11
Facility Status:
(circle one)
Permit Status: RENEWAL 1111001FIC.ATION UNPERMriTED NEW
(circle one)
Major �/ Minor,
Pipe No- Q 0 /
Design Capacity (MGD)•
Domestic (X of Flow):
Industrial (X of Flow): `j`1,
cocLtm, sj.
Coramsnts-
RECEIVING STREAM: ,4ra ra f 1F(Ue k
Class:
Sub -Basin- D 3 — U7 D 3 •
Reference USGS Quad: B // `N
County- 1001
Regional Office: - As Fa Mo . Ra Wa Wi
(circle see)
Requested By:TOSo•kine d'o/24Date-
Prepared By: w4a-,.�cd. A.6�"J Date:
Reviewed By: 0607,1A, hn Date:
(please attach)
t73-1(s0-)Ms(w1J)
l oQIEL
-z7i5/14___
ESIS WASTE LOAD ALLOCATION
Modeler
Date Rec.
54)
Drainage Area (mil) 2S1 Avg. Streamflow (cfs)-
7Q10 (cfs) $Z Z Winter 7Q10 (cfs) 1'3 30Q2 (cfs)
Toxicity Limits: IWC 3 X (circle one) Acute /
Instream Monitoring:
Parameters 'P.O., Y4L Colt, TEMP, CoNDUC,T[VtTV
Upstream Location Al" 1-EAST 100l UPS' A-M
Downstream Y Location AT 5R Zo44 PrPP)L u-4 MtU
D(uUNST/Z -4M
Chronic
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
30
30
NH3 N (mg/1)
2,�
D.O. (mg/1)
_
--
TSS (mg/1)
3 0
3o
F. Col. (/100m1)
Zoo
Zoo
pH (SU)
6 -9
6-9
Iva :
sN y u. Nor CAu5E A•J
-THAN 2. g •L _MJ p l,J ne7
I ve.12 A56 of IKo2);.
c$5c.. i✓xcF ea.T) Z`I uG
OIL 1, 4a6Ase (mite)
12e
3c .
megutal ( Pet)
0.434,
0- 4-3(.,
Comments. (F t' �NNoVATInn1S A2� pukot/GD, CNt.o2we
Lt M i I o f igiutet S nout-D RG l i rP erniVrcD • AkoNt To 2 s CA aiu i u M)
G1gOMtu# . (WEER., Nto , Lam, SING, CiAIJIDt✓, Stif 2
'(NE. FAG u`fy SHout D BE Awgze - NAT Unit /1.04 K,Coue A'.or6- 5`f21ueteMT
APBs' 714E YflDe.i/J EASt1J 5Tl2d t 4y i5 IMPLEN1GAJr .

Wasteload Allocation Request
Proposed New Discharge Point on Ararat River
Existing Pilot Mountain WWTP
NPDES Permit No. NC0026646
William C. Aasoriates has been retained try the Town of Pilo. Mountain to evaluate
the feasibility of ccr structing a treated effluent force main from the Town's existing wastewater
treatment facility discharge point proposed on the Ararat River at its crossing by NC 268.
The existing and the oroposed new discharge points are highlighted on the attached USGS map.
The receiving stream would thus change from Heatherly Creek to Ararat River. The initial step
in such an evaluatic^ is to determine what the waste load allocation for the Town's discharge into
Ararat River would oe should the force main be constructed. We are hereby requesting the
determination of the-wasteload allocation should the discharge be relocated to Ararat River. We
want to emphasize t.'at this allocation request is for study purposes only and in no way should be
construed as a form!1 request by the Town to amend its present NPDES permit. That possibility
will be evaluated The Town upon the conclusion of our study.

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Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Pilot Mountain WWTP
NC0026646
75% ind/25% dom (staff report)
Existing
Modification
Ararat River
C
030703
Surry
WSRO
R. Barona
10/7/91
B16NE
Request # 6478
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
RECEIVED
H.C. Dept. NRCD
NOV 1 1991
si 6tiInstc n-Salem
LIgional Office
oNL-y
287
82.2
163
379
3%
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
The facility is currently discharging to Heatherly Creek, which yields an IWC of 94%. The facility
cannot meet its toxicity limit and may relocate to the Ararat River which would yield an IWC of
3%. Pilot Mountain is under a JOC due to its failing innovative treatment technology. Federal
funds will enable the facility to improve their treatment system and, hopefully, meet their final
.limits. Two chronic value tests have been performed showing ChV=17.7, <12.5. Previous
speculative was done on Tom's Creek which had an IWC of 28%. Based on the above ChV's, the
facility may not pass if they relocate to Tom's Creek. The Ararat River was chosen as a viable
alternative. Their consultant said that piping to the Ararat via Hwy 268 was within $100,000 of
piping to Tom's Creek. Because the plant is seeking long-term solutions, they feel the Ararat
River is their best alternative.
(Asa. At/2-1 19 AFIX- i3 M:. Lsrac-Priv)
Special Schedule Requirementse�and additional comments from Reviewers:
�%„ ; f//6'"rn-eireer711/ei, Oil �.I(/� lP•• /sew/7 "Si z•'V r",e./.54%3
/G��,� /�G"t• �t*,l'�5/2i`�/�/a/sf-1, Ll - A ••Py Ark, #0.7r07.
/ 71 /s //',(-/// /n .i/ �>; A� ��.•l if�r+! /�
>4e, d/y. /�iw). Amy?'ri , 74 101'4 �%.507 diz-71,r�re�-y �7l7,d"P
1(441—
Recommended by: 1� �X- Date: 1�I2? �� i
Reviewed by
Instream Assessment:
Regional Supervisor:
Date: 10
Date: // (
Permits & Engineering: C Date: / CeN
RETURN TO TECHNICAL SERVICES BY:
NOV G6 b_)
C.)
w

2
Fxisting Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Temperature
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):
Temperature
CONVENTIONAL PARAMETERS
Monthly Average
Summer Winter
1.5 1.5
30 30
14 nol
5 5
30 30
1000 1000
6-9 6-9
Shall not cause an increase of
more than 2.8°C and in no case
exceed 29°C
Monthly Average
Summer Winter WQ or EL
1.5 1.5
30 30
28.6 nol WQ
30
200
6-9
30
200
6-9
30 30 60 Daily Based on
max WSRO
rec.
Shall not cause an increase of
more than 2.8°C and in no case
exceed 29°C
Cof.(s_c, F.i: -7r1l5 (-6:410/4
NOTE: Recommend that if extensive rennovations are planned a chlorine limit of/8 µg/1 be
implemented.
Also, Technical Support suggests that perhaps the facility should continue to meet its current limits
of 30/14/5 to provide incentive to meet this minimal level of treatment (even though the
speculative model yields less stringent limits). Since toxicity testing is the main concern, this is not
an unreasonable requirement. This should be discussed between the appropriate parties before this
information is passed to their consultant. The same comments hold true for metals monitoring.
Perhaps the acute values for metals should be implemented instead of allowing metals values at the
IWC of 3% (where only monitoring would be required -see below).
Limits Changes Due To:
New regulations/standards/procedures
Relocation
Parameter(s) Affected
Fecal coliform
NH3-N
(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)

3
Type of Toxicity Test:
Existing Limit:
Recommended Limit:
Monitoring Schedule:
Existing Limits
Copper (mg/1):
Zinc (mg/1):
Recommended Limits
Cadmium (ug/l):
Chromium (ug/1):
Copper (ug/l):
Nickel (ug/1):
Lead (ug/1):
Zinc (ug/l):
Cyanide (ug/l):
Mercury (ug/1):
Silver (ug/l):
tf
TOXICS/METALS
Chronic
Chronic Qtrly P/F at 94%
Chronic Qtrly P/F at 3%
Jul, Oct, Jan, Apr
. L Cam..
Monthly Avg. Weekly Avg.
0.05 0.075
0.016 0.024
`toy
Daily Max.
monitor
monitor
monitor
monitor
monitor
monitor
monitor
0.436
monitor
Limits Changes Due To:
New pretreatment information & relocation
WQ or EL
WQ
WQ
WQ
WQ
WQ
WQ
Parameter(s) Affected
all parameters
_X_ Parameter(s) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

4
INSTREAM MONITORING REQUIREMENTS
Upstream Location: at least 100 ft. upstream
Downstream Location: at SR 2044 appx. 0.4 mi. downstream
Parameters: Fecal coliform, DO, temperature, conductivity
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility demgnstrated the abilityto meet the proposed new limits with existing treatment
facilities? Yes'* t/ No . �' er4s>o0a/ Prw�r•-+►s ,.,�/ /,VDU TS ; 4a/ fe/co--
Pie Q,',A71 orr '74,91e•if sl o`, 4125-ddi
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No )(
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
ge;'4'j .5e d>/ - fO/ray fiot'Y;f,/,ors e I PIT7 S% �70rm ' Q? ", life- P�^E,�sPiz..rwArz
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`Dr 7yo / �.K C¢dr.e/ ,e7
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Special Instructions or Conditions
Wasteload sent to EPA? (Major) Nb (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? Na (Y or N) If yes, explain with attachments.

a
Facility Name Pi Lor
Permit # (.J COo Z(v<04-(, Pipe #
CO
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
(**Chronic Toxicity (Ceriodaphnia) P/F at 3 %,Sup., 0 x TAN, , See Part , Condition .)
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 3 % (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
SAS, OcT, 5,14, Apra . 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. 27607-6445
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 1VZ•Z cfs
Permitted Flow (. 5 MGD Recommended by:
IWC% 2.?5.
Basin & Sub -basin O301o3
Receiving Stream ha. 1a.4-r c4ttfiGad.
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10/18/91 ver3.1 TOXICS REVIEW
Facility: pilot mtn
NPDES Permit No.: nc0026646
Status (E, P, or M) : m
Permitted Flow: 1.5 mgd
Actual Average Flow: 0.86 mgd
Subbasin: '030703
Receiving Stream: ararat river I PRETREATMENT DATA I----EFLLUENT DATA---- I
Stream Classification: c I ACTUAL PERMITTEDI 1
7Q10: 82.20 cfs I Ind. + Ind. + I FREQUENCY I
IWC: 2.75 % I Domestic PERMITTED Domestic I OBSERVED of Chronic)
Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total 1 Eflluent Criteria 1
Pollutant AL Conc. 1 Eff. Load Load Load Load Load 1 Conc. Violations)
(ug/1) (ug/1) I % (#/d) (#/d) (#/d) (#/d) (#/d) 1 (ug/1) (#vio/#sam)1
Cadmium S 2.0 1 92% 0.0000 0.3665 0.37 0.0660 0.066 I I
Chromium S 50.0 1 76% 0.0100 0.3126 0.32 1.5160 1.526 1 I I
Copper AL 7.0 1 53% 0.0300 0.7353 0.77 3.2960 3.326 I 332.0 I N
Nickel S 88.0 1 32% 0.0200 0.2657 0.29 0.9240 0.944 1 I P
Lead S 25.0 1 81% 0.0400 0.3372 0.38 0.9300 0.970 1 1 U
Zinc AL 50.0 1 12% 0.0500 0.3913 0.44 1.4000 1.450 1 360.0 1 T
Cyanide S 5.0 1 59% 0.0100 0.0643 0.07 0.0680 0.078 1 I
Mercury S 0.012 1 86% 0.0002 0.0028 0.00 0.0005 0.001 I I S
Silver AL 0.06 1 94% 0.0200 0.1593 0.18 2.0380 2.058 I I E
Selenium S 5.00 1 0% 1 I C
Arsenic S 50.00 1 0% ( I T
Phenols S NA 1 0% I I I
NH3-N C 1 0% I 10
T.R.Chlor.AL 17.0 1 0% 1 I N
I I I
I I I
I I I
ALLOWABLE PRDCT'D PRDCT'D PRDCT'D MONITOR/LIMIT I--ADTN'L RECMMDTN'S--
0.0 Effluent Effluent Instream 1 Recomm'd
Conc. using using Conc. Based on Based on Based on 1 FREQUENCY INSTREAM
1 Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED 1 Eff. Mon. Monitor.
Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent 1 based on Recomm'd ?
(#/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data 1 OBSERVED (YES/NO)
Cadmium S 1 11.26 72.710 4.085 0.736 0.00 Monitor Monitor 1 I A
Chromium S 1 93.81 1817.742 10.788 51.032 0.00 Monitor 1 1 N
Copper AL 1 6.71 254.484 50.119 217.819 9.13 Monitor Monitor Monitor 1 Weekly YES 1 A
Nickel S 1 58.27 3199.226 27.070 89.445 0.00 Monitor 1 1 L
Lead S 1 59.25 908.871 9.986 25.680 0.00 Monitor Monitor 1 1 Y
Zinc AL 1 25.59 1817.742 54.112 177.798 9.90 Monitor Monitor Monitor 1 Monthly NO I S
Cyanide S 1 5.49 181.774 4.245 4.456 0.00 Monitor Monitor I 1 I
Mercury S 1 0.04 0.436 0.059 0.013 0.00Limit Monitor 1 1 S
Silver AL 1 0.45 2.181 1.499 17.206 0.00 Monitor Monitor 1 I
Selenium S 1 2.25 181.774 0.000 0.000 0.00 1 1 R
Arsenic S 1 22.52 1817.742 0.000 0.000 0.00 1 1 E
Phenols S I 0.000 0.000 0.000 0.00 1 1 S
NH3-N C 1 0.000 0.00 I I U
T.R.Chlor.AL 1 618.032 0.00 I I L
I I I T
I I I S

MODEL RESULTS
Discharger : CITY OF MOUNT AIRY
Receiving Stream : ARARAT RIVER
PI LoT NI-N.
SUMMER
QEFF=1.5 MGD, BOD5=30 MG/L
NH3-N=28.6 MG/L
The End D.O. is 7.53 mg/1.
The End CBOD is 5.85 mg/1.
The End NBOD is 5.59 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 5.01 0.26 1
Reach 1 60.00 58.50 5.00 7.00000
Reach 2 0.00 0.00 0.00 0.00000
Reach 3 0.00 0.00 0.00 0.00000
Reach 4 0.00 0.00 0.00 0.00000
Reach 5 45.00 90.00 0.00 0.01800
Reach 6 0.00 0.00 0.00 0.00000
Reach 7 0.00 0.00 0.00 0.00000
Reach 8 0.00 0.00 0.00 0.00000
Reach 9 0.00 0.00 0.00 0.00000
Segment 2 6.86 0.60 3
Reach 1 0.00 0.00 0.00 0.00000
Reach 2 0.00 0.00 0.00 0.00000
Reach 3 PtLnr /iy&j ---4-60.00 128.70 0.00 1.50000
Reach 4 0.00 0.00 0.00 0.00000
`k 4-1
MT A 112, Mot ¶.4AT G4 5 IAS imateupED Soo 'A L UE
Fo/2 5, 121 - S.2 2 , T DtD AJo i ' , Sot VALU
OF I. r2 5, R, - 5, Rs

*** MODEL SUMMARY DATA ***
Discharger : CITY OF MOUNT AIRY Subbasin : 030703
.Receiving Stream : ARARAT RIVER Stream Class: C
*Summer 7Q10 : 14.9 Winter 7Q10 : 31.0
Design Temperature: 25.0
ILENGTHI SLOPE' VELOCITY 1 DEPTH' Kd 1 Kd 1 Ka 1 Ka 1 KN I
I mile 1 ft/mil fps 1 ft Idesign l @20% Idesign l @2034 Idesign'
1 1 1 1 1 1 1 1 I
Segment 1 1 0.261 8.201 0.540 1 1.78 1 0.33 1 0.26 14.44 1 3.981 0.44
Reach 1 1 1 1 1 1 1 1 1 I
1 1 1 1 1 1 1 1 I
Segment 1 1 0.721 8.201 0.589 1 1.98 1 0.33 10.26 1 3.95 1 3.551 0.44
Reach 2 1 1 1 1 1 1 1 1 I
Segment 1
Reach 3
I I
1.201 8.201
0.720 1 2.33 1 0.33 1 0.26 1 3.43 I 3.081 0.44
1 1 1 1 1 1 1 1
Segment 1 1 2.201 8.20I 0.723 1 2.36 1 0.33 1 0.26 1 3.38 1 3.031 0.44
Reach 4 1 1 1 1 1 1 1 1 1
I I I I I I I
Segment 1 1 1.651 8.201 0.732 1 2.36 10.33 1 0.26 1 3.38 1 3.031 0.4fl
Reach 5 I I I I I I I I I ;9
1 1 I
Segment 1 1 2.101 10.501
Reach 6 1 1 I
0.790 1 2.30 1 0.35 1 0.28 1 3.67 1 3.291 0.42i.
Segment 1
Reach 7
I I
2.001 10.501
0.803 1 2.33 1 0.35 1 0.28 1 3.62 1 3.251 0.44
I I 1 1 1 1 1 1 I
Segment 1 1 0.351 7.971 0.755 1 2.44 1 0.33 1 0.26 1 5.90 1 5.291 0.44
Reach 8 1 1 1 1 1 1 1 1 I
1 1 1 1 1 1 1 1 I
Segment 1 1 2.551 7.971 0.766 1 2.48 10.33 1 0.26 1 5.99 1 5.371 0.44
Reach 9 1 1 1 1 1 1 1 1 I
1 1 1 1 1 1 1 1 I
Segment 2 1 0.501 7.971 0.768 1 2.57 1 0.33 1 0.26 1 6.01 1 5.391 0.44
Reach 1 1 1 1 1 1 1 1 1 I
I 1 1 1 1 1 1 1 I
Segment 2 1 0.101 7.971 0.768 1 2.60 10.33 1 0.26 1 6.01 1 5.391 0.44
Reach 2 1 1 1 1 1 1 1 1 I
1 1 1 1 1 1 1 1 I
Segment 2 1 2.021 7.971 0.794 1 2.62 1 0.33 10.26 1 6.21 1 5.571 0.44
Reach 3 1 1 1 1 1 1 1 1 I

I 1 1 1 1 1 1 1 1
'Segment 2 1 8.401 7.971 0.836 1 2.68 1 0.33 1 0.26 1 6.54 1 5.871 0.44 1
Reach 4 1 1 1 1 1 1 1 1 1 I
I Flow 1 CBOD 1 NBOD 1 D.Q. I
1 cfs 1 mg/1 1 mg/1 1 mg/1 I
Segment 1 Reach 1
Waste 110.850 1 60.000 1 58.500 I 5.000
Headwaters! 14.900 1 2.000 1 1.000 I 5.550
Tributary I 0.000 1 2.000 1 1.000 I 7.440
* Runoff 1 0.080 1 2.000 1 1.000 I 7.440
Segment 1 Reach 2
Waste I 0.000 I 0.000 1 0.000 1 0.000
Tributary I 8.900 I 2.000 I 1.000 I 7.440
* Runoff I 0.080 I 2.000 I 1.000 1 7.440
Segment 1 Reach 3
Waste I 0.000 I 0.000 1 0.000 I 0.000
Tributary 123.600 I 2.000 1 1.000 I 7.440
* Runoff 1 0.380 1 2.000 1 1.000 1 7.440
Segment 1 Reach 4
Waste 1 0.000 I 0.000 1 0.000 I 0.000
Tributary I 0.800 I 2.000 1 1.000 I 7.440
* Runoff I 0.580 1 2.000 I 1.000 1 7.440
Segment 1 Reach 5
Waste 1 0.028 1 45.000 1 90.000 1 0.000
Tributary 1 0.000 1 2.000 1 1.000 1 7.440
* Runoff I 0.580 1 2.000 1 1.000 1 7.440
Segment 1 Reach 6
Waste 1 0.000 1 0.000 1 0.000 I 0.000
Tributary 1 0.380 1 2.000 1 1.000 1 7.440
* Runoff 1 0.380 1 2.000 1 1.000 1 7.440
Segment 1 Reach 7
Waste I 0.000 1 0.000 1 0.000 1 0.000
Tributary 1 0.770 1 2.000 1 1.000 1 7.440
* Runoff 1 1.700 1 2.000 1 1.000 I 7.440
Segment 1 Reach 8
Waste I 0.000 1 0.000 1 0.000 I 0.000
Tributary 1 0.000 1 2.000 1 1.000 1 7.440
* Runoff 1 1.430 1 2.000 1 1.000 1 7.440

Segment 1 Reach 9
Waste I 0.000 1 0.000 1 0.000 1 0.000
Tributary 1 0.870 1 2.000 I 1.000 1 7.440
* Runoff 1 1.430 1 2.000 1 1.000 1 7.440
Segment 2 Reach 1
Waste 1 0.000 I 0.000 1 0.000 I 0.000
Headwaters) 0.000 I 2.000 1 1.000 I 7.440
Tributary I 3.790 I 2.000 I 1.000 I 7.440
* Runoff 1 1.430 1 2.000 1 1.000 1 7.440
Segment 2 Reach 2
Waste I 0.000 I 0.000 1 0.000 I 0.000
Tributary 1 1.220 1 2.000 1 1.000 I 7.440
* Runoff 1 1.430 1 2.000 1 1.000 1 7.440
Segment 2 Reach 3
Waste I 2.325 1 60.000 1128.700 I 0.000
Tributary 1 0.000 1 2.000 1 1.000 I 7.440
* Runoff 1 1.430 1 2.000 1 1.000 1 7.440
Segment 2 Reach 4
Waste I 0.000 1 0.000 1 0.000 1 0.000
Tributary 1 0.710 1 2.000 I 1.000 1 7.440
* Runoff 1 1.430 1 2.000 1 1.000 1 7.440
* Runoff flow is in cfs/mile

SUMMER
QEFF=1.5 MGD, BOD5=30 MG/L
NH3-N=28.6 MG/L
I Seg # I Reach # I Seg Mi I D.O. I CBOD I NBOD I Flow I
1 1 0.00 5.32 26.44 25.23 25.75
1 1 0.02 5.29 26.42 25.20 25.75
1 1 0.04 5.27 26.40 25.17 25.75
1 1 0.06 5.24 26.38 25.15 25.75
1 1 0.08 5.22 26.35 25.12 25.76
1 1 0.10 5.19 26.33 25.10 25.76
1 1 0.12 5.17 26.31 25.07 25.76
1 1 0.14 5.15 26.29 25.04 25.76
1 1 0.16 5.12 26.27 25.02 25.76
1 1 0.18 5.10 26.25 24.99 25.76
1 1 0.20 5.08 26.23 24.96 25.77
1 1 0.22 5.06 26.21 24.94 25.77
1 1 0.24 5.03 26.19 24.91 25.77
1 1 0.26 5.01 26.16 24.88 25.77
1 2 0.26 5.64 19.96 18.75 34.67
1 2 0.30 5.60 19.93 18.72 34.67
1 2 0.34 5.57 19.90 18.68 34.68
1 2 0.38 5.53 19.88 18.65 34.68
1 2 0.42 5.50 19.85 18.61 34.68
1 2 0.46 5.47 19.82 18.57 34.69
1 2 0.50 5.44 19.79 18.54 34.69
1 2 0.54 5.41 19.76 18.50 34.69
1 2 0.58 5.37 19.73 18.47 34.70
1 2 0.62 5.35 19.70 18.43 34.70
1 2 0.66 5.32 19.68 18.40 34.70
1 2 0.70 5.29 19.65 18.36 34.71
1 2 0.74 5.26 19.62 18.33 34.71
1 2 0.78 5.23 19.59 18.29 34.71
1 2 0.82 5.20 19.56 18.26 34.72
1 2 0.86 5.18 19.53 18.22 34.72
1 2 0.90 5.15 19.51 18.19 34.72
1 2 0.94 5.13 19.48 18.15 34.73
1 2 0.98 5.10 19.45 18.12 34.73
1 3 0.98 6.05 12.39 11.19 58.33
1 3 1.18 5.97 12.31 11.09 58.40
1 3 1.38 5.90 12.22 11.00 58.48
1 3 1.58 5.83 12.14 10.90 58.56
1 3 1.78 5.77 12.06 10.81 58.63
1 3 1.98 5.71 11.98 10.72 58.71
1 3 2.18 5.66 11.90 10.62 58.78
1 4 2.18 5.68 11.77 10.50 59.58
1 4 2.38 5.63 11.68 10.40 59.70
1 4 2.58 5.59 11.60 10.30 59.82
1 4 2.78 5.54 11.52 10.21 59.93
1 4 2.98 5.51 11.43 10.12 60.05
1 4 3.18 5.47 11.35 10.02 60.16
1 4 3.38 5.44 11.27 9.93 60.28
1 4 3.58 5.41 11.19 9.84 60.40
1 4 3.78 5.39 11.11 9.75 60.51
1 4 3.98 5.36 11.03 9.66 60.63
1 4 4.18 5.34 10.95 9.57 60.74
1 4 4.38 5.32 10.88 9.49 60.86
1 5 4.38 5.32 10.89 9.52 60.89
1 5 4.43 5.32 10.87 9.50 60.92
1 5 4.48 5.31 10.85 9.48 60.95
1 5 4.53 5.31 10.83 9.46 60.98

1 5 4.58 5.30 10.81 9.44 61.00
1 5 4.63 5.30 10.80 9.42 61.03
1 5 4.68 5.30 10.78 9.39 61.06
1 5 4.73 5.29 10.76 9.37 61.09
1 5 4.78 5.29 10.74 9.35 61.12
1 5 4.83 5.29 10.72 9.33 61.15
1 5 4.88 5.28 10.70 9.31 61.18
1 5 4.93 5.28 10.68 9.29 61.21
1 5 4.98 5.28 10.66 9.27 61.24
1 5 5.03 5.27 10.64 9.25 61.27
1 5 5.08 5.27 10.63 9.23 61.29
1 5 5.13 5.27 10.61 9.20 61.32
1 5 5.18 5.27 10.59 9.18 61.35
1 5 5.23 5.26 10.57 9.16 61.38
1 5 5.28 5.26 10.55 9.14 61.41
1 5 5.33 5.26 10.53 9.12 61.44
1 5 5.38 5.26 10.51 9.10 61.47
1 5 5.43 5.25 10.49 9.08 61.50
1 5 5.48 5.25 10.48 9.06 61.53
1 5 5.53 5.25 10.46 9.04 61.56
1 5 5.58 5.25 10.44 9.02 61.58
1 5 5.63 '5.25 10.42 9.00 61.61
1 5 5.68 5.25 10.40 8.98 61.64
1 5 5.73 5.24 10.38 8.96 61.67
1 5 5.78 5.24 10.37 8.94 61.70
1 5 5.83 5.24 10.35 8.92 61.73
1 5 5.88 5.24 10.33 8.90 61.76
1 5 5.93 5.24 10.31 8.88 61.79
1 5 5.98 5.24 10.29 8.86 61.82
1 5 6.03 5.24 10.28 8.84 61.85
1 6 6.03 5.25 10.22 8.79 62.23
1 6 6.13 5.25 10.19 8.76 62.26
1 6 6.23 5.25 10.16 8.72 62.30
1 6 6.33 5.26 10.13 8.69 62.34
1 6 6.43 5.26 10.09 8.65 62.38
1 6 6.53 5.26 10.06 8.62 62.42
1 6 6.63 5.26 10.03 8.58 62.45
1 6 6.73 5.26 10.00 8.55 62.49
1 6 6.83 5.27 9.96 8.52 62.53
1 6 6.93 5.27 9.93 8.48 62.57
1 6 7.03 5.27 9.90 8.45 62.61
1 6 7.13 5.28 9.87 8.42 62.64
1 6 7.23 5.28 9.84 8.38 62.68
1 6 7.33 5.28 9.81 8.35 62.72
1 6 7.43 5.29 9.77 8.32 62.76
1 6 7.53 5.29 9.74 8.28 62.80
1 6 7.63 5.29 9.71 8.25 62.83
1 6 7.73 5.30 9.68 8.22 62.87
1 6 7.83 5.30 9.65 8.19 62.91
1 6 7.93 5.30 9.62 8.16 62.95
1 6 8.03 5.31 9.59 8.12 62.99
1 6 8.13 5.31 9.56 8.09 63.02
1 7 8.13 5.34 9.46 8.01 63.79
1 7 8.23 5.34 9.42 7.96 63.96
1 7 8.33 5.35 9.37 7.92 64.13
1 7 8.43 5.36 9.33 7.87 64.30
1 7 8.53 5.37 9.29 7.83 64.47
1 7 8.63 5.37 9.24 7.78 64.64
1 7 8.73 5.38 9.20 7.74 64.81
1 7 8.83 5.39 9.15 7.69 64.98

1 7 8.93 5.40 9.11 7.65 65.15
1 7 9.03 5.40 9.07 7.61 65.32
1 7 9.13 5.41 9.03 7.57 65.49
1 7 9.23 5.42 8.98 7.52 65.66
1 7 9.33 5.43 8.94 7.48 65.83
1 7 9.43 5.44 8.90 7.44 66.00
1 7 9.53 5.44 8.86 7.40 66.17
1 7 9.63 5.45 8.82 7.36 66.34
1 7 9.73 5.46 8.78 7.32 66.51
1 7 9.83 5.47 8.73 7.28 66.68
1 7 9.93 5.47 8.69 7.24 66.85
1 7 10.03 5.48 8.65 7.20 67.02
1 7 10.13 5.49 8.61 7.16 67.19
1 8 10.13 5.49 8.61 7.16 67.19
1 8 10.16 5.51 8.60 7.14 67.24
1 8 10.20 5.53 8.59 7.13 67.29
1 8 10.23 5.55 8.57 7.12 67.34
1 8 10.27 5.57 8.56 7.10 67.39
1 8 10.30 5.59 8.55 7.09 67.44
1 8 10.34 5.61 8.54 7.08 67.49
1 8 10.37 5.63 8.52 7.06 67.54
1 8 10.41 5.65 8.51 7.05 67.59
1 8 10.44 5.67 8.50 7.04 67.64
1 8 10.48 5.69 8.48 7.02 67.69
1 9 10.48 5.71 8.40 6.95 68.56
1 9 10.73 5.90 8.31 6.85 68.93
1 9 10.99 6.07 8.22 6.76 69.29
1 9 11.24 6.22 8.14 6.67 69.66
1 9 11.50 6.35 8.05 6.58 70.02
1 9 11.75 6.47 7.97 6.49 70.39
1 9 12.01 6.57 7.88 6.41 70.75
1 9 12.26 6.67 7.80 6.32 71.12
1 9 12.52 6.75 7.72 6.24 71.48
1 9 12.77 6.83 7.64 6.16 71.85
1 9 13.03 6.90 7.56 6.08 72.21
2 1 0.00 6.92 7.28 5.82 76.00
2 1 0.05 6.94 7.27 5.81 76.07
2 1 0.10 6.95 7.25 5.79 76.14
2 1 0.15 6.96 7.24 5.78 76.21
2 1 0.20 6.97 7.22 5.77 76.29
2 1 0.25 6.98 7.21 5.75 76.36
2 1 0.30 7.00 7.20 5.74 76.43
2 1 0.35 7.01 7.18 5.72 76.50
2 1 0.40 7.02 7.17 5.71 76.57
2 1 0.45 7.03 7.15 5.69 76.64
2 1 0.50 7.04 7.14 5.68 76.72
2 2 0.50 7.04 7.06 5.61 77.94
2 2 0.51 7.05 7.06 5.60 77.95
2 2 0.52 7.05 7.05 5.60 77.96
2 2 0.53 7.05 7.05 5.60 77.98
2 2 0.54 7.05 7.05 5.59 77.99
2 2 0.55 7.05 7.04 5.59 78.01
2 2 0.56 7.06 7.04 5.59 78.02
2 2 0.57 7.06 7.04 5.59 78.04
2 2 0.58 7.06 7.04 5.58 78.05
2 2 0.59 7.06 7.03 5.58 78.06
2 2 0.60 7.06 7.03 5.58 78.08
2 3 0.60 6.86 8.56 9.14 80.40
2 3 0.80 6.89 8.50 9.05 80.69
2 3 1.00 6.92 8.43 8.96 80.98

2 3
2 3
2 3
2 3
2 3
2 3
2 3
2 3
2 4
2 4
2 4
2 4
2 4
2 4
2 4
2 4
2 4
2 4
2 4
I Seg # I Reach #
1.21
1.41
1.61
1.81
2.01
2.22
2.42
2.62
2.62
3.46
4.30
5.14
5.98
6.82
7.66
8.50
9.34
10.18 7.50
11.02 7.53
I Seg Mi I D.O.
6.94 8.36
6.97 8.30
6.99 8.23
7.01 8.17
7.04 8.11
7.05 8.05
7.07 7.98
7.09 7.92
7.09 7.87
7.18 7.63
7.24 7.40
7.29 7.18
7.34 6.97
7.38 6.76
7.41 6.57
7.44 6.38
7.47 6.19
6.02
5.85
I CBOD
8.87
8.78
8.69
8.61
8.52
8.44
8.35
8.27
8.21
7.89
7.59
7.30
7.02
6.75
6.50
6.26
6.02
5.80
5.59
I t�sgD
81.27
81.56
81.85
82.14
82.43
82.71
83.00
83.29
84.00
85.20
86.40
87.61
88.81
90.01
91.21
92.41
93.61
94.81
96.01
I Flow
Per-124. k Li'
D.a. Is tNG2t r`rsrtil4
n! r AA ri C.0 FAQ
ANo1-0CPorNt
C FwJ 5 t rro 70 kjfl-K1N)

ati1,4 SM )Li Ai ©N PT,
T l L PC41 oJai
INSTREAM SELF -MONITORING DATA
• MONTHLY AVERAGES
it-14M 71-1c,56
Discharger k . Ai PI
Receiving S _
Upstream Location: US 11u. y 5Z (A#,•vc)
DATE
Dec-91
Nov-91
Oct-91
Sep-91
Aug-91
Jul-.91
Jun-91
May-91
Apr-91
Mar-91
Feb-91
Jan-91
Dec-90
Nov-90
Oct-90
Sep-90
Aug-90
JuI-90
Jun-90
May-90
Apr-90
Mar-90
Feb-90
Jan-90
Dec-89
Nov-89
Oct-89
Sep-89
Aug-89
JuI-89
Jun-89
May-89
Apr-89
Mar-89
Feb-89
Jan-89
TEMP
D.O.
COND.
FECAL COLT.
22(ZbG,7169,0
23.I G.74(6,3
21(z4, z$ 6.6. 0
19.5(23.8) 2/4(b,3)
?, 9 (7. 0)
(5',2(Ib.3)
/0.0(IS,1
73 g.0)
7. r0(9, o)
ld, 3 19.
7. 27(?,1)
7.5(7, /)
(7.8'l
7.¢s(s, 3)
22. 3(27 &)
Zo. Z(23.8)
1.15(6.4)
6.'7'7( . o)
74Z(4)
�¢2 (6,5�
1 )wJ S . .32% CcN; : ,,,/5-E,0 1.s
STREAM DATA 6,
Permit No. Jo21 121
Sub -basin: \\
Downstream Location: S2 177Z 03C--c,o ') (APPX. ('�J
BCi� C eu-1-CL�t ' (�.
Ar rc csNF, �,,, rr1 srLu1R1TS
D.O. COND. FECAL CO
MP
•
Z2,1(26.a,
6_.9S(6. 6)
23.1(z5.)
6.86ib,4)
6(24.4)
6,15((.5')
,21,
/,9(70,$
1,140,¢
16.60e,74.28(6.,
)(,3(!S,5
6.96(6,9
'7.4(5.1)
1,3;('7.0
g,%(1,0
7.6 17.4;
10.6.6e, 0)
?.'7('7. o)
/0.964, r)
a 52(7, ►)
/b.9(22.7)
G.7z(5-,7)
Ze, 5 (Z(o,�
, 37(6, %'
'I/.
73 ,9 (Z6,
0+(G.
4, 4(29.2)
6,51(4 .
22,5(Z7.4,
T.o7(S.8)
(Y. 4 (z.z. 8:
'i, zs (4.5)
Page 1

STREAM DATA
INSTREAM SELF -MONITORING DATA
MONTHLY AVERAGES
Discharger: Pi t-o-i At- .
Receiving Stream:
Upstream Location: 0. M : u Ps'
DATE
Dec-91
Nov-91
Oct-91
Sep-91
Aug-91
JuI-.9i
Jun-91
May-91
Apr-91
Mar-91
Feb-91
Jan-91
Dec-90
Nov-90
Oct-90
Sep-90
Aug-90
JuI-90
Jun-90
May-90
Apr-90
Mar-90
Feb-90
Jan-90
Dec-89
Nov-89
Oct-89
Sep-8
Aug-8
Jul-8
Jun-8
May-8
Apr-8
Mar-8
Feb-8
Jan-8
TEMP
D.O.
COLD
Permit No. NJC4b
Sub -basin:
Downstream Location: "' r7o`vNS-
FECAL COLI.
9
9
9
9
9
9
9
9
9
22. I (25)
4. S (¢ c))
3°l0 (.1 �
2.(0 (2f)
6,`t (5.0)
311(6000)
19,9 (23)
7.1 (So,o
,
717 (400(;
43,8 (it)
7,? (5,1
'
1t769 q
,
f li.3 (24
co (8.7)
4,4- Soo)
(Zbd)
la(1+)
.1- (iM)
15
, o)
??
116(38c)
6g)*i¢(1
4.0
14 2(z)
ii' ((000)
a (lei)
10. 7(19.4
49 (74,
1i 62.)
/o. 44,4
(6/(' Zo
w4(6070)
¢7G(. 9k)
301 (1 Zoo)
t5-. 4 (i9
9,5 (a.6)
i g. 4 (2.3)
6.0 (5, z)
,
21.3(25)
l,1(6.6
21,3(t)
73(g,1
85(6ao)
1, 4-(62)
?, 5'(6, 4)
/51(5)5)
,
D.O. COLD FECAL CO
240(30)
(..Z((. &)
3 (6014,-
Z7.860
5:9(4.SZ
257600c
2 .4(24
co. 9(c. e
Z14((� J
24. 6 (27)(,,
8 (5, 4-
3ro 1 000)
,
21.5(25)
0.5(6,4)
(57(Gao)
17 8 (2r)
8. 9 (9))
14-(16)
Ir.3(8..5)
Iosz/Coa&
)Z64)
/a..5 (9, 9)
2403 4o+r.4-,
!COO)
A.) (-9
4094 (r .
/9, 5(2)
ta At ('.g'
1405 (600o1
23, 4(Z'4
A,10, z)
,a2676aoo�;
4706(606)`'
26,3(3o)
6,7(5,7)
Z9,8(3)
S'.(o(/8)
Y92/40)
Z7.4 (.)
7 0 (3 i3)
13 (3000)
2 ,.8(51)
,
6.v(3.e)
96(4esoo)
Page 1

AgaA a4T Q► v e .rw i o) SR 20 l °I 0 2 M►L.S5 UP st2EArn
data.txt Of P2oPo5GD ?1I,or MTN .
CO
date time depth mg/I
89/01/19 1005 0 12.8
89/04/13 930 0 10.6
89/07/18 1010 0 8.2
89/10/23 1020 0 10.8
90/01/23 1015 0 11
90/04/17 945 0 9.2
90/07/11 940 0 7.5
90/10/09 1005 0 9.2
91/01/15 1100 0 11.4
91/07/15 1025 0 7.6
BODS mg/I
89/01/19 1005 0 2.2
89/04/13 930 0 1.3
89/07/18 1010 0 0.7
89/10/23 1020 0 0.8
90/01/23 1015 0 0.5
90/04/17 945 0 1.6
90/07/11 940 0 4.7
90/10/09 1005 0 2.5
91/01/15 1100 0 1.2
91/07/15 1025 0 2.3
PH SU
89/01/19 1005 0 7.1
89/04/13 930 0 7.5
89/07/18 1010 0 7.3
89/10/23 1020 0 7.1
90/01/23 1015 0 6.9
90/04/17 945 0 6.4
90/07/11 940 0 6.4
90/10/09 1005 0 7
91/01/15 1100 0 6.2
91/07/15 1025 0 7.1
NH3+NH4- mg/I
89/01/19 1005 0 0.14
89/04/13 930 0 0.11
89/07/18 1010 0 i 0.09
89/10/23 1020 0 0.04
90/01/23 1015 0 0.1
90/04/17 945 0 0.04
90/07/11 940 0 0.03
90/10/09 1005 0 0.11
91/01/15 1100 0 0.06
91/07/15 1025 0 0.06
Page 1

data.txt
TKN mg/I
89/01/19 1005 0 0.4
89/04/13 930 0 0.4
89/07/18 1010 0 0.2
89/10/23 1020 0 0.3
90/01/23 1015 0 0.2
90/04/17 945 0 0.3
90/07/11 940 0 0.6
90/10/09 1005 0 0.5
91/01/15 1100 0 0.2
91/07/15 1025 0 0.2
NO28,NO3
89/01/19 1005 0 0.5
89/04/13 930 0 0.5
89/07/18 1010 0 0.67
89/10/23 1020 0 0.49
90/01/23 1015 0 0.61
90/04/17 945 0 0.51
90/07/11 940 0 0.77
90/10/09 1005 0 0.47
91/01/15 1100 0 0.64
91/07/15 1025 0 0.51
Arsenic ug/I
89/01/19 1005 0 10K
89/04/13 930 0 10K
89/07/18 1010 0 10K
89/10/23 1020 0 10K
90/01/23 1015 0 10K
90/04/17 945 0 10K
90/07/11 940 0 10K
90/10/09 1005 0 10K
91/01/15 1100 0 10K
91/07/15 1025 0 10K
Cadmium ug/I
89/01/19 1005 0 2K
89/04/13 930 0 2K
89/07/18 1010 0 2K
89/10/23 1020 0 2K
90/01/23 1015 0 2K
90/04/17 945 0 2K
90/07/11 940 0 2K
90/10/09 1005 0 2K
91/01/15 1100 0 2K
91/07/15 1025 0 2K
Page 2

data.txt
Chromium ug/I
89/01/19 1005 0 25K
89/04/13 930 0 25K
89/07/18 1010 0 25K
89/10/23 1020 0 25K
90/01/23 1015 0 25K
90/04/17 945 0 25K
90/07/11 940 0 25K
90/10/09 1005 0 25K
91/01/15 1100 0 25K
91/07/15 1025 0 25K
Copper ug/I
89/01/19 1005 0 10K
89/04/13 930 0 4
89/07/18 1010 0 25
89/10/23 1020 0 4
90/01/23 1015 0 4
90/04/17 945 0 2K
90/07/11 940 0 11
90/10/09 1005 0 2K
91/01/15 1100 0 2K
91/07/15 1025 0 2K
Lead ug/I
89/01/19 1005 0 10K
89/04/13 930 0 10K
89/07/18 1010 0 10K
89/10/23 1020 0 10K
90/01/23 1015 0 10K
90/04/17 945 0 10K
90/07/11 940 0 10K
90/10/09 1005 0 10K
91/01/15 1100 0 10K
91/07/15 1025 0 10K
Nickel ug/I
89/01/19 1005 0 50K
89/04/13 930 0 10K
89/07/18 1010 0 10K
89/10/23 1020 0 10K
90/01/23 1015 0 10K
90/04/17 945 0 10K
90/07/11 940 0 10K
90/10/09 1005 0 10K
91/01/15 1100 0 10
91/07/15 1025 0 10K
Page 3

data.txt
Zinc ug/I
89/01/19 1005 0 10K
89/04/13 930 0 10K
89/07/18 1010 0 10K
89/10/23 1020 0 11
90/01/23 1015 0 10K
90/04/17 945 0 10K
90/07/11 940 0 28
90/10/09 1005 0 37
91/01/15 1100 0 10K
91/07/15 1025 0 10K
Mercury ug/I
89/01/19 1005 0 0.2K
89/04/13 930 0 0.2K
89/07/18 1010 0 0.2K
89/10/23 1020 0 0.2K
90/01/23 1015 0 0.2K
90/04/17 945 0 0.2K
90/07/11 940 0 0.2K
90/10/09 1005 0 0.2K
91/01/15 1100 0 0.2K
91/07/15 1025 0 0.2K
Page 4

PDES WASTE LOAD ALLOCATION
t taw
PERMIT NO.: NC0026646
PERMITTEE NAME:
FACILITY NAME:
Town of Pilot Mountain
Pilot Mountain WWTP
Facility Status: Existing
Permit Status: Renewal
Major 1 Minor
Pipe No.: 001
Design Capacity: 1.5 MGD
Domestic (% of Flow):
Industrial (% of Flow):
Comments:
45.9 %
54.1 %
pretreatment information attached
RECEIVING STREAM:'' (46-R-rr-fg4t_y O2
Class: C
Sub -Basin: 03-07-03
Reference USGS Quad: B 16 NE
County: Surry
Regional Office:
Winston-Salem Regional Office
(please attach)
Previous Exp. Date: 1/31/92 Treatment Plant Class: Class 3
Classification changes within three miles:
?LOTTED
none
Requested by: Rosanne Barona
Prepared by: # r�itilad ., v -,J
Reviewed by:
oc u l 0 8 (,Suxrh)/ 13S (w w)
Date: 10/7/91
Date: :2-Azie31/1,7Date: I .100 f GI
Modeler
Date Rec.
#
SA-,,.)
toe c1
641'1
Drainage Area (mi2 ) (. 22- Avg. Streamflow (cfs): /. 4-5
7Q10 (cfs) a . i5 Winter 7Q10 (cfs) o . 3a 30Q2 (cfs)
Toxicity Limits: IWC 9 d % Acute/hroni� ?fF
Instream Monitoring:
Parameters 7• 0 cA� �o �2 i ,n,� P. Co,J Dc(crr vi ry
Upstream Y Location 4r twits-r loo / 4PST?Z6011
Downstream 1 Location pi" 52 1 IS PnwoS7-4E,4,n+
OA) 1 i.4'5 C.eci .-
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
3o
30
NH3-N (mg/1)
i 4-
N o Lima
D.O.(mg/I)
S
5-
TSS (mg/1)
30
30
F. Col. (/100 ml)
Zoo
Zoo
PH (SU)
(0_ 9
6 ,9
or, ii Gaans6 (PIO
30
I G,xPEtkru.Qe :
5tIALL Nor cpuSE AA.) INeVeise
Ip -6a6 ar e-eivr44 5rZe.V'r'WD
251 ° C. .
c Maze 'NA&
IN No CRsETo C
CADMIUM (/G)
CM2tQMIUM (At(.')
Z .1
53
2.1
53
NI c.ci„vet.)
L4D c1t/ /)
94-
27
94
17
C ykJI (40.410
M tAnx (/, I C)
5.3 3j
O. 0l 3
5.3
0.013
2-•6QC
C_CoG>
Comments: 4-tnMMFi•!k, "HAT IF eKTIC,JSIVC P6MAIATit4S. Ariz PERMED 41I1, T'-1
(r,ctLrrY 305 Nor REl.064TE,. 1'J -11/4) t-' it op L1 n44, (su,e) AM, 2.1 ,i.IL CIA/14)
tMPLEMerrrb. Also, A CawWaE u rurr oP 19 4iira,112., sµouLD bcr LMPtk,+tiEArED.
FF4GlLID1 51-loULI) Mon11To2 CoPPeg. CMG /}ND Lk/r12..

glo�a3��
NPDES PRETREATMENT INFORMATION REQUEST FORM
FACILITY NAME: /, ,f14NPDES NO. NC00 02 e r,
REQUESTER: DATE: / /7 33/ 9/ REGION: /14c4i- `
PERMIT CONDITIONS COVERING PRETREAT
This facility has no SIUs 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
Please include the following conditions:
Program Implementation
Additional Conditions
(attached)
SIGNIFICANT INDUSTRIAL USERS' (SIUs) CONTRIBUTIONS
SIU FLOW - TOTAL:
- COMPOSITION:
TEXTILE: •
METAL FINISHING:
OTHER: al „atia.es,,;c4
6.1'(22,NED
FIEADWORKS REVIEW
PASS
PARAMETER
;THROUGH
r
i
ALLMABLE
Cd V, DfO I VCr
�1 Or 3fVv
Cu
Ni /, nn _� 32Ok
Pb nh� r,Gin g1AK
Zn
CN tO, 0.O61' glo 3 ik
Phen 1
Other
DAILY LOAD IN LBS/DAY ACTUAL
DOMESTIC PERMITTED INDUSTRIAL % REMOVAL
1.
t42_
. c3 0.cc40,Q
D.1599 7T_IK
ii
041u
RECEIVED: / / REVIEWED BY:40;„
/LL
4

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Pilot Mountain WWTP
NC0026646
75% ind/25% dom (staff report)
Existing
Renewal
Heatherly Creek
C
030703
Surry
WSRO
R. Barona
10/7/91
B 16NE
Request # 6477
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
RECEIVED
N.C. Dept. NCO
tioV 11991
4" ;�n-Salem
Office
1.22
0.15
0.38
1.45
94%
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
The facility is currently discharging to Heatherly Creek, which yields an IWC of 94%. The facility
cannot meet its toxicity limit and may relocate to the Ararat River which would yield an IWC of
3%. Based on new pretreatment information, some metal parameters will be limited.
Pilot Mountain is under a JOC due to its failing innovative treatment technology. Federal funds
will enable the facility to improve their treatment system and, hopefully, meet their final limits.
Special Schedule Requirements and additional comments from Reviewers:
D/l�/
,ter„// �lz c' er jy :�ri, Sr��/.;�. "9,-7
Ltf'�� �o 7.3'/7'//flr/ '/f% ' ( (27./ s /2/i>ii�r!• /
Recommended by: x
Reviewed by
Instream Assessment:
Regional Supervisor:
Permits & Engineering:
Date:
Date: / 6 IOI-4 h
Date: //-3—
L(/�l�t
co
RETURN TO TECHNICAL SERVICES BY: co
Date: _
NOV 26 iy11

2
Existing Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Temperature
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): 30 30
CONVENTIONAL PARAMETERS
Monthly Average
Summer Winter
1.5 1.5
30 30
14 nol
5 5
30 30
1000 1000
6-9 6-9
Shall not cause an increase of
more than 2.8°C and in no case
exceed 29°C
Monthly Average
Summer Winter WQ or EL
Temperature
1.5 1.5
30 30
14 nol
5 5
30 30
200 200
6-9 6-9
Shall not cause an increase of
more than 2.8°C and in no case
exceed 29°C
60 Daily Based on
max WSRO
rec.
/ii
NOTE: Recommend that if extensive rennovations are planned, and the facility does not re ovate;
NH3-N limit of 1.1 mg/1 (summer) and 2.1 mg/1(winter) be implemented - based on ammonia
toxicity. Also, recommend a chlorine limit of 18 µg/1 be implemented.
Limits Changes Due To: Parameter(s) Affected
New regulations/standards/procedures Fecal coliform
New facility information
(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)

3
Type of Toxicity Test:
Existing Limit:
Recommended Limit:
Monitoring Schedule:
Existing Limits
Copper (mg/1):
Zinc (mg/1):
Recommended Limits
Cadmium (ug/1):
Chromium (ug/1):
Copper (ug/1):
Nickel (ug/1):
Lead (ug/1):
Zinc (ug/1):
Cyanide (ug/1):
Mercury (ug/1):
Silver (ug/1):
TOXICS/METALS
Chronic
Chronic Qtrly P/F at 94%
Chronic Qtrly P/F at 90%
Jul, Oct, Jan, Apr
Limits Changes Due To:
New pretreatment information
Monthly Avg. Weekly Avg.
0.05 0.075
0.016 0.024
Daily Max.
2.1
53
monitor
94
27
monitor
5.3
0.013
monitor
WQ or EL
WQ
WQ
WQ
WQ
WQ
WQ
Parameter(s) Affected
all parameters
X_ Parameter(s) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

INSTREAM MONITORING REQUIREMENTS
Upstream Location: at least 100 ft. upstream
Downstream Location: at SR 1815 downstream on Tom's Creek
Parameters: Fecal coliform, DO, temperature, conductivity
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No ,
If no, which parameters cannot be met? 1, /?), - we 4,a714 fA44,4/a)/ef�1
�6' G'Srot/14�,r/ />TV> ',,4ari pro / 6 I %
Would a "phasing in" of the new limits be apropriate? Yes t/" No l0�//i'# P o�
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
MiDe A Q�"'ts" �� � -..7 '2,7 4
-sue ,o.)c /fl i. ,/,'<< i u/� 71e, ,r,/eres-
/a�'i -e*if� e' w:ere tie P,r
If no, why not?
Special Instructions or Conditions
Wasteload sent to EPA? (Major) No (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes, explain with attachments.

Facility Name Ti Lo T A/VTN Permit # 4 C.o 210(a¢(o Pipe # o e I
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
(**Chronic Toxicity (Ceriodaphnia) P/F at 90%, 10-,19(41 /-iiN APE See Part , Condition .)
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 Ctn % (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
,IAN, APR. . 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. 27607-6445
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 (5.15 cfs
Permitted Flow 1.5 MGD
IWC% 94
Basin & Sub -basin o 307c 3
Receiving Stream 1.tEArg y C ti .
County Su 2421
Recommended by:
Date ' co/z2/11
QCLR Version 9/91

10/18/91 ver 3.1 T OXICS REVIEW
Facility: pilot mtn
NPDES Permit No.: nc0026646
Status (E, P, or M) : e
Permitted Flow: 1.5 mgd
Actual Average Flow: 0.86 mgd
Subbasin: '030703
Receiving Stream: heatherly crk I PRETREATMENT DATA I----EFLLUENT DATA---- I
Stream Classification: c I ACTUAL PERMITTEDI I
7Q10: 0.15 cfs I Ind. + Ind. + 1 FREQUENCY I
IWC: 93.94 % 1 Domestic PERMITTED Domestic I OBSERVED of Chronic)
Stn'd / Bkg 1 Removal Domestic Act.Ind. Total Industrial Total 1 Eflluent Criteria I
Pollutant AL Conc. 1 Eff. Load Load Load Load Load 1 Conc. Violations)
(ug/1) (ug/1) 1 % (#/d) (#/d) (#/d) (#/d) (#/d) 1 (ug/1) (#vio/#sam)I
Cadmium S 2.0 1 92% 0.0000 0.3665 0.37 0.0660 0.066 I I
Chromium S 50.0 1 76% 0.0100 0.3126 0.32 1.5160 1.526 1 1 I
Copper AL 7.0 1 53% 0.0300 0.7353 0.77 3.2960 3.326 1 332.0 1 N
Nickel S 88.0 1 32% 0.0200 0.2657 0.29 0.9240 0.944 1 1 P
Lead S 25.0 1 81% 0.0400 0.3372 0.38 0.9300 0.970 1 1 U
Zinc AL 50.0 1 12% 0.0500 0.3913 0.44 1.4000 1.450 1 360.0 1 T
Cyanide S 5.0 1 59% 0.0100 0.0643 0.07 0.0680 0.078 1 I
Mercury S 0.012 1 86% 0.0002 0.0028 0.00 0.0005 0.001 I 1 S
Silver AL 0.06 1 94% 0.0200 0.1593 0.18 2.0380 2.058 I 1 E
Selenium S 5.00 1 0% 1 1 C
Arsenic S 50.00 1 0% 1 I T
Phenols S NA 1 0% 1 1 I
NH3-N C I 0% 1 1 0
T.R.Chlor.AL 17.0 1 0% 1 1 N
Pollutant
ALLOWABLE PRDCT'D PRDCT'D PRDCT'D MONITOR/LIMIT I--ADTN'L RECMMDTN'S--
0.0 Effluent Effluent Instream 1 Recomm'd
Conc. using using Conc. Based on Based on Based on 1 FREQUENCY INSTREAM
Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED 1 Eff. Mon. Monitor.
Load Criteria Influent Influent OBSERVED Influent Influent Effluent 1 based on Recomm'd ?
(#/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data 1 OBSERVED (YES/NO)
Cadmium S 1 0.20 2.129 4.085 0.736 0.00 Limit Limit 1 1 A
Chromium S 1 1.66 53.226 10.788 51.032 0.00 Limit Limit 1 1 N
Copper AL 1 0.12 7.452 50.119 217.819 311.88 Monitor Monitor Monitor 1 Weekly YES 1 A
Nickel S 1 1.03 93.677 27.070 89.445 0.00 Limit Limit 1 1 L
Lead S 1 1.05 26.613 9.986 25.680 0.00 Limit Limit 1 1 Y
Zinc AL 1 0.45 53.226 54.112 177.798 338.18 Monitor Monitor Monitor 1 Weekly YES 1 S
Cyanide S 1 0.10 5.323 4.245 4.456 0.00 Limit Limit 1 1 I
Mercury S 1 0.00 0.013 0.059 0.013 0.00 Limit Limit 1 1 S
Silver AL 1 0.01 0.064 1.499 17.206 0.00 Monitor Monitor 1 I
Selenium S 1 0.04 5.323 0.000 0.000 0.00 1 1 R
Arsenic S 1 0.40 53.226 0.000 0.000 0.00 1 ( E
Phenols S 1 0.000 0.000 0.000 0.00 1 1 S
NH3-N C 1 0.000 0.00 1 1 U
T.R.Chlor.AL 1 18.097 0.00 1 1 L
I I I T
I I I S