NC0020800_Wasteload Allocation_19900405

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit:
NC0020800
Andrews WWTP
Document Type:
Permit Issuance
Wasteload Allocation -`--
Authorization to Construct (AtC)
Permit Modification
Complete File
- Historical
Correspondence
Speculative Limits
Instream Assessment
(67b)
Environmental Assessment (EA)
Permit
History
Document Date:
April 5, 1990
This document is printed on reuse paper - ignore any
content on the reirerse side

R9ties4- D (4I- 6&
c „Y1�`� 6,C1)-m tad.. ,,
NPDES WAS IE LOAD ALLOCATION
PERMIT NO.: NC0020800
PERMI I TEE NAME: Town of Andrews / Town of Andrews WWTP
Facility Status: Existing
Permit Status: Renewal
Major Minor
Pipe No.: 001
Design Capacity: 1.5 MGD
Domestic (% of Flow): 88 %
Industrial (% of Flow):
Comments:
12%
RECEIVING STREAM: Valley River
Class: C-Trout
Sub -Basin: 04-05-02
Reference USGS Quad: G 3 NF (please attach)
County: Cherokee
Regional Office: Asheville Regional Office
Previous Exp. Date: 5/31/90 Treatment Plant Class: Class III
Classification changes within three miles:
Requested by:
Prepared by:
Revi
Rau) tnM,.4..1
(16"(e .o(ie�
PLOTT
Lula Harris Date:
ilas4 seo:14,
iqtA,bc C.G �c
2/27/90
Date: Yl 0 0
Date: '4I5 fQZO
«M.� w� iSswe� ( -J{ To./r\
< c i o s„.f rbb , r tat
ROe
Modeler
Date Rec.
#
1\A. D 5
ZA 2--1 °
5 6 0 4
Drainage Area (mil ) s . Li p Avg. Streamflow (cfs): (30
7Q10 (cfs) 15, p Winter 7Q10 (cfs) tR 30Q2 (cfs) 30. p
Toxicity Limits: IWC 13.11 % Acute Ironic
Instream Monitoring:
cliro :c.(ce,oJaph' / rfc
Parameters
Upstream
lV Location
Downstream !`i Location
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
3 0
NH3-N (mg/1)
N
D.O. (mg/1)
N R
TSS (mg/1)
3 0
F. Col. (/100 ml)
Z 00
pH (SU)
6-9
T0f01 Re.s.�,0.1 CI, lor
,ru
30
%C
D.,.iy 1�1&X.muivi
6.4W 4ftt C JR)
3
DA:ly Ktx
ckrwM nq ( //)
372.
"ly Max
G.run; 1 e1IJ)
6 55
��
37
Daly No
IJ►ckt1 (1/t))
37
C55
> 1k MAK
Comments: Re.c.anuti a�
AAA silver , CIAlor:ru
nq A1'r&vlole+
J ��tls 1;.4.fs
eAlna17 5is,
e?ilwrl% mon;tor�n co r) IeclA zinc
of >uILss6ry ;flu c'act<< t's
6cA e 1 on re_ceu1 l 't rcaT n.1 ell kt a rettc�

Request No.: 5604
WASTELOAD ALLOCATION APPROVAL FORM
• .-r
Facility Name: Town of Andrews WWTP
NPDES No.: NC0020800 i'i .. ! _ i
Type of Waste: 88% Domestic, 12% Industrial
Status: Existing/Renewal
Receiving Stream: Valley River
Classification: C-Trout
Subbasin: 040502 Drainage area: 52.400 sq mi
County: Cherokee Summer 7Q10: 15.00 cfs
Regional Office: Asheville Winter 7Q10: 19.00 cfs
Requestor: Lula Harris Average flow: 130 cfs
Date of Request: 2/27/90 30Q2: 30.00 cfs
Quad: G3NE
RECOMMENDED EFFLUENT LIMITS
Daily
Summer Winter Max
Wasteflow (mgd) : 1.5 1.5 Cadmium (ug/1) : 3
BOD5 (mg/1) : 30 30 Chromium (ug/,1) : 37
NH3N (mg/1) : NR NR rUickel (ug/1) : 655
DO (mg/1) : NR NR Cyanide (u /1) : 37
TSS (mg/1) : 30 30 ocSV,J R i(J411
Fecal coliform (#/100m1): 200 200
pH (su) : 6-9 6-9
Tot. Res. Chlorine (ug/1): 30 30
Toxicity Testing Req.: Chronic/Ceriodaphnia/Qrtrly
Upstream (Y/N) : N
Downstream (Y/N) : N
MONITORING
Location:
Location:
COMMENTS
r'19"1 WED
APR U :3 1990
-P&Rti ,wT �r}�
r r. l._ �. ��wLf�Rfikl r;
Metals limits and toxicity requirement based on recent pretreatment
headworks analysis. Recommend effluent monitoring of copper, lead,
zinc, and silver.
Chlorine limit is not necessary if the facility is using ultraviolet
disinfection.
Other limits are existing limits (fecal coliform has been revised).
Per Asheville Regional Office, recommend the permit not be issued until
the facility's sludge disposal problem has been resolved
�>%
ems, d. ..1) Eel R o
Recommended by:
Reviewed by
Instream Assessment:
Regional
sor:
Permits & E gineering:
it:dmd srvs,
RETURN TO TECHNICAL SUPPORT BY:
11,PR n 0 1999
�J�t
Date:
Date:
Date:
Date:
0
3/.Z/9d
4(3/,

10/89
Facility Name TO hl A occ i • . , P Permit # NC0020 $00
CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests,
using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is 13 % (defined as treatment two in the North Carolina procedure
document). The permit holder shall perform gicorterty monitoring using this procedure to establish
compliance with the permit condition. The first test will be performed after thirty days from
issuance of this permit during the months of Mar Sun , See ., 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
DischargeMonitoring Form (1`1R-1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream, this
permit may be re -opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
7Q10 • l S cfs
Permited Flow (, so MGD Recommended by: 3
IWC% 13.14 �.
Basin & Sub -basin o'�OSOZ
Receiving Stream Valley R s ve r j ' ScQ)LXZk
'County cluto ke& Y Date , qat Qo
**Chronic Toxicity (Ceriodaphnia) P/F at t3 %, luo►r, Jun, Scr, Dec. , See Part 3 , Condition L .

30405
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0-1 u l re.-s t d-u a( c ti(5.r i
V.MCr
(I.325 .
ces)(MIv j/ 1 )
(,3iscesX.,) } 6s-cfs)(�2 M:/jP3/I
1,323- (-Cs )(I .T Alit) _ (2,3z S" (C")cw)
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(i- 7, 315)( 1Z •A512._ (1p.s(�) C� + (15- cfs)c o
svti/A
L' iC(,,5`r! ILMGr ;S %e. �� L WL t C �ldt f L.5 5 /t.CL lL

03/18/90 ver 3.1 TOXICS REVIEW
Facility: Town of Andrews WWTP
NPDES Permit No.: NC0020800
Status (E, P, or M) : E
Permitted Flow: 1.50 mgd
Actual Average Flow: 0.63 mgd
Subbasin: 40502.00
Receiving Stream: Valley River 1--- ------ PRETREATMENT DATA I----EFLLUENT DATA---- 1
Stream Classification: l TR I ACTUAL PERMITTEDI 1
7Q10: 15.00 cfs I Ind. + Ind. + 1 FREQUENCY I
INC: 13.42 sk I Domestic PERMITTED Domestic I OBSERVED of Chronic)
Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria I
Pollutant AL/Crt'a Conc. I Eff. Load Load Load Load Load I Conc. Violations)
(ug/1) (ug/1) I % (f/d) (#/d) (#/d) (#/d) (#/d) I (ug/1) (#vio/#sam)1
Cadmium S 0.4 I 92% 0.01 0.01 0.02 0.03 0.040 I I
-----
Chromium S 50.0 I 76% 0.12 3.68 3.80 0.71 0.830 I 0.36 I I
Copper AL 7.0 I 82% 0.14 0.08 0.22 0.86 1.000 I I N
Nickel S 88.0 1 32% 0.05 0.02 0.07 0.99 1.040 I I P
Lead S 25.0 1 81% 0.12 0.03 0.15 0.18 0.300 I I U
Zinc AL 50.0 1 77% 0.41 0.23 0.64 0.62 1.030 I I T
Cyanide S 5.0 1 S9% 0.10 0.01 0.11 0.27 0.370 I I
Mercury S 0.012 1 86% 0.00 0.00 0.000 I I S
Silver AL 0.060 I 94% 0.01 0.01 0.02 0.10 0.110 I I E
Selenium S 5.0 I 0% I I C
Arsenic S 50.0 I 0% I I T
Phenols S NA I 0% I I I
NH3-N C I 0% I 10
T.R.Chlor.AL 17.0 I 0% I I N
I I I
I I I
I I I
I--------------- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D---------MONITOR/LIMIT--------- (--ADTN'L REcMHDTN'S-- I
I Effluent Effluent Effluent Instream I Recomm'd I
I Conc. using using Conc. Based on Based on Based on 1 FREQUENCY INSTREAM I
I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. I
Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd ? I
I (#/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data I OBSERVED (YES/NO) I
I---------------------------------------------------1----------------- 1
Cadmium S I 0.43 2.981 0.243 0.607 0.00 Monitor Limit I I A
Chromium S I 17.94 372.581 173.069 37.812 0.05 Limit Limit I NCAC NO I N
Copper AL I 3.35 52.161 7.585 34.167 0.00 Monitor Monitor I I A
Nickel S I 11.15 655:742 9.293 134.239 0.00 Monitor Limit I I L
Lead S I 11.33 186.290 5.302 10.820 0.00 Monitor Monitor 1 I Y
Zinc AL I 18.72 372.581 27.767 44.968 0.00 Monitor Monitor I I S
Cyanide S I 1.05 37.258 8.561 28.795 0.00 Limit Limit I I I
Mercury S I 0.01 0.089 0.000 0.000 0.00 I I S
Silver AL I 0.09 0.447 0.205 1.253 0.00 Monitor Monitor I I
Selenium S I 0.43 37.258 0.000 0.000 0.00 I I R
Arsenic S I 4.31 372.581 0.000 0.000 0.00 I I E
Phenols S I 0.000 0.000 0.000 0.00 I I S
NH3-N C I 0.000 0.00 I I U
T.R.Chlor.AL I 126.677 0.00 I I L
I I IT
I I IS
I I I
-� I----------------

7
Kt' 5.,-11 C ek`r S
01.4
-Ze_ 0-'�S
35" • aso. - . 12 s- Q 3 S
gnbW - 5' (Soc a 4- _ Li75
11
ifr O W ' IC ` `t o a✓g� w v +L
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0
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v-S S© (.. ,,_ Q ..� = 2 5 ao 47 Jr- Ss- o o o
bML- ea,t7
4.a/-\_
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o / 0 4- Cr v-•
r
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DPr - S-
-czl o IS -
ex_ A-- = 130
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z IS
u
Spa
2o1

DISCHARGER
RECEIVING CEIVING STREAM
********* MODEL RESULTS **********
: ANDRE WS OC
VALLEY RIVER
**********************************************************************
THE END t4t0a IS 8t50 MG/L
*****************************************.****************************
THE END
yCBOD IS�y y 3+39 HG./1_. �y�y y ,y jay y�y y j �yy ,y y� y
lti*****.************* ****************** 4c********************************
THE END NBOU IS 0 + 00 MG/L..
***: *: ** *************** :*********: ***** c********************** '** € **
THE D+Go MIN+ OF SEGMENT 1 IS 7+62 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT MILEPOINT 0
WHICH IS LOCATED IN REACH NUMBER 1
THE WLA FOR SEGMENT :1 REACH 1 IS 160 MG/L_ OF CBOD
THE W1..A FOR SEGMENT 1 REACH 1 IS 0 HG/1_. OF NBOD
THE REQUIRED EFFLUENT 11 + 0 + IS 4 MG/L
THE WASTEFLOW ENTERING SEG I REACH 1 IS 0+475 MOD
****************************: *************************fit***************

********** MODEL RESULTS **********
DISCHARGER �ANDREW8 SOC
RECEIVING STREAM �VALLEY RIVER
THE END D^O, IS 8~53 MG/L
'THE END CBOD IS 2~85 MG/L
THE END NBOD IS 0^00 MG/L
**********************************************************************
THE Di-O. M%N+ OF SEGMENT 1 IS 7^67 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT M%LEPO%NT O
WHICH IS LOCATED IN REACH NUMBER 1
THE WLA FOR SEGMENT 1 REACH 1 IS 160 M8/1- OF CBOD
THE WLA FOR SEGMENT 1 REACH 1 IS O MG/L OF NBOD
THE REQUIRED EFFLUENT D,O+ IS 4 MG/L
THE WASTEFLOW ENTERING SEG 1 REACH J. IS 0,35 MGD
**********************************************************************

6,0 R.,
4 Sco-S5s-v.uz-,..*
6-C 4.4_
o.b 4s, )
ikt-4-cC, (L.
( n
c„ co s "
44-4-f-3 m— } '
,73 istc.‘24.,c0 t.A0sLe( 0
-oes-tt,
Jts
eL
0_ .0
_AmO
LAA
v-tAgrs C-`1-
A-Lte 3cas

4
*** MODEL SUMMARY DATA ***
DISCHARGER
RECEIVING STREAM
`0'10
DESIGN TEMPERATURE 1
r NDREWS
VALLEY RIVER
11 CFS
23 DEGREES C.
SUBBASIN
STREAM CLASS:
WINTER 7010 p
Wr CTEFL0W
I LENGTH I SLOPE 1 VELOCITY !DEPTH 1 K1 1 Kri
1 MILES 1 F T /MI I FPS 1 FT 1 /DAY 1 /D+AY
SEGMENT 1
REACH 1
3.0.(W)=0
1
2.001 :L5.001
1
0.309
3
H1Wi '02
. r — s
C i- B
.495 MOD
1 CCD 1 K2 1 NctPS 1
I MG/M2D 1 /DAY 1 1G/L/D 1
I I 1
1.61 1 0+47 1 0+00 1
I 1 1
ALL RATES ARE AT 23 DEGREES C.
*** INPUT DATA SUMMARY ***
0.01
1
1
6:421
1
FLOW 1 CBOT:' 1 NBOEI 1 D.O. 1
CFS 1 MG/L 1 MG/L 1 MG/L 1
SEGMENT 1 REACH 1 I 1
WASTE I 0.767 46.000
HEADWATERS I 11.000 1 2.000
TRIBUTARY 1 0.000 1 0.000
RUNOFF * 1 0.212 I 2.000
1
1
1 0.000
1 0.000
1 0.000
1 0.000
* RUNOFF FLOW IS IN CFS/MILE
1
1
j/
�y
�i d [[j� tr 0 0 1
7.800
0.000 I
7.800 1
0,001
1

**** **** MODEL RESULTS *>#:**** **
DISCHARGER : ANIDREWS
RECEIVING STREAM :VALLEY RIVER
****************** ** ** ******* **********:** *****************:*****
THE END D.O. IS 8.30 MG/L
THE END CBOD IS 3.97 MG/L
********************************fit****: *****Y **: *** *****************
THE END NBOD IS 0 + 00 MG/L
**********************************************************************
THE D.O. MIN. OF SEGMENT 1 IS 7+29 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT MILEFOINT 0
WHICH IS LOCATED IN REACH NUMBER :!
THE WLA FOR SEGMENT 1 REACH :L IS 46 MG/L OF CBQU
THE WLA FOR SEGMENT 1 REACH 1 IS 0 MG/L OF NB0x'
THE REQUIRED EFFLUENT D.O. IS 0 MG/L
THE WASTEFLGW ENTERING SEG 1 REACH 1 IS 0+495 M(3f
e********************************************************************

********* MODEL RESULTS ***%1E******
DISCHARGER : ANDREWS
RECEIVING STREAM :VALLEY RIVER
:; **********:**********************************************************
THE END D.O. IS 8.33 MG/L
**:****:********************fit*******************************************
T H yE �y E N D CBOD IS �j/ ( 3.97 M ,G / L * tJ, y y * * ,y * * * ,y * * *
THE END NBOD IS 0.00 MG/L
THE D.O. MIN. OF SEGMENT 1 IS 7.62 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT MILEF'OINT 0
WHICH IS LOCATED IN REACH NUMBER 1
THE WLA FOR SEGMENT 1 REACH 1 IS 46 MG/L OF CBOD
THE WLA FOR SEGMENT 1 REACH 1 IS 0 MG/L OF NBOD
THE REQUIRED EFFLUENT U.O. IS 5 MG/L
THE W iSTEFLOW ENTERING SEG 1 REACH 1 IS 0.495 MOD
**********************************************************************

4.1
*** MODEL SUMMARY DATA ***
DISCHARGER
RECEIVING STREAM
7010
DESIGN TEMPERATURE
ANDREWS
VALLEY RIVER
11 CFS
23 DEGREES C.
1 LENGTH I SLOPE I VELOCITY !DEPTH
!MILES 1FT/MI I FPS 1 FT
1 I 1
SEGMENT 1 I 2+001 15.001
REACH 1 I I 1
I
0.309 1 1.61
1
I).0. (W)=5
SUBBi SIN
STREAM CLASS:
WINTER 7010
WASTEFLOW
h1
/IDAY
HIW/02
C—TR
C 1' S
.495 MGD
Kri I SOD I K2 I Nc?tPS 1
/DAY I MG/M2I' 1 /DAY I MG/L/Ii 1
0.47
0400 1
ALL RATES ARE AT 23 DEGREES C .
*** INPUT DATA SUMMARY ***
l 1
0.01 6.421
1 1
0.001
1
FLOW 1 CBOD 1 NBOLI 1 I.O.
CFS 1 MG/L 1 MG/L 1 MG/L
SEGMENT
1 REACH 1 I !
WASTE 1 0.767 1 46.000
HEADWATERS I 11.000 2.000
TRIBUTARY 1 0.000 1 0.000
RUNOFF * 1 0.212 1 2.000
0.000
0.000
0.000
0.000
5.000
7.800
0.000
7.800
RUNOFF FLOW IS IN CFS/MILE