NC0020800_PERMIT ISSUANCE_19980130

NPDES DOCUMENT SCANNIMS COVER SKEET
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:
January 30,
1998
This document is printed oa reuse paper - ignore ariy
coateat on the reverse side

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B Hunt, Jr, Governor
Wayne McDevitt, Secretary
A Preston Howard, Jr , P E , Director
January 30, 1998
Mr Jim Dailey
Town of Andrews
Post Office Box 1210
Andrews North Carolina 28901
Dear Mr Dailey
Subject NPDES Permit Issuance
Permit No NCO020800
Andrews WWTP
Cherokee County
In accordance with the application for discharge permit received on August 11 1997 the DIN ision is
forwarding herewith the subject state - NPDES permit This permit is issued pursuant to the, requirements of North
Carolina General Statute 143 215 1 and the Memorandum of Agreement between North Carolina end the U S
Environmental Protection Agency dated December 6 1983
If any parts measurement frequencies or sampling requirements contained in this permit are unacceptable to
you you have the right to an adjudicator) hearing upon written request within thirty (30) days following receipt of
this letter This request must be in the form of a written petition conforming to Chapter 150B of the North
Carolina General Statutes and filed with the office of Administrative Hearings Post Office Drawer 27447 Raleigh,
North Carolina 27611-7447 Unless such a demand is made this permit shall be final and binding
Please take notice that this permit is not transferable Part II, E 4 addresses the requirements to be
followed in case of change in ownership or control of this discharge This permit does not affect the legal
requirements to obtain other permits which may be required by the DIN ision of Water Quality or permits required by
the Division of Land Resources Coastal Area Management Act, or an) other Federal or Local governmental permits
may be required
If you have any questions or need additional information please contact Mr Mark McIntire telephone
number [phone], extension 553
Sincerely
Original Signed By
David A Goodrich
A Preston Howard, Jr , P E
cc Central Files
Mr Roosevelt Childress EPA
Asheville Regional Office, Water Quality
NPDES Unit Petniit File
Point Source Compliance/Enforcement Unit
Aquatic Toxicology Unit
P O Box 29535, Raleigh North Carolina 27626 0535 Telephone [phone]/FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post consumer paper

Permit No NCO020800
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
t
In compliance with the provision of North Carolina General Statute 143-215 1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Town of Andrews
is hereby authorized to discharge wastewater from a facility located at the
Andrews Wastewater Treatment Facility
Reagan Avenue
Andrews
Cherokee County
to receiving waters designated as the Valley River in the Hiwassee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, and IV hereof
The permit shall become effective March 1, 1998
This permit and the authorization to discharge shall expire at midnight on December 31, 2002
Signed this day January 30, 1998
Original Signed By
David A Goodrich
A Preston Howard, Jr, P E , Director
Division of Water Quality
By Authority of the Environmental Mangement Commission

Pcnnu No NC 0020800
tiUPPLEIMFN 1 10 PLRAII ICON I R SHLIa'
lo%rn of Andress
is heiebv atithottr-ed to
COnllmle to Opel IT a I 5 MGD" IgLWatu treatment ficihu consisting A
in influcn! comminuts b u uICLn Ind gIR LhInlet dual uul.lungIdtels
and secondary clamficrs an Al ucd sludgz dige,tcl a chloune contact
chambe sulfur dtoaide WhNimauon and emergency stand-by pom
located at the Town of Anchcwss WWTP, Reagin Avcnuc Andres
Chetok.et County (See Pau III of dus Petmrt) and
3 Drschaige fiom s ud ue umen! "skv It the location cpcc,fied on the attached
n-ip into the Valley Rnoa "hwh v cl iesiftecl C-Trout %�ateis III the
HIWdssce Rivet Bat m

A (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
Permit No NCO020800
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number
001 Such discharges shall be limited and monitored by the Permittee as specified below
EFFLUENT `CHARACTERISTICS.
r
LIMITS
MONITORING REQUIREMENTS
Monthly
Avera a
Weekly
Avera a
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Locations
Flow MGD
1 5
Continuous
Recording
I or E
BOD, 5-day, 20oC2
30 0 mg/L
45 0 mg/L
Daily
Composite
I E
Total Suspended Residue2
30 0 m /L
45 0 m /L
Daily
Composite
I E
NH3-N
Daily
Composite
E
Fecal Coliform eometric mean
200 / 100 ml
400 / 100 ml
Daily
Grab
E
Total Residual Chlorine
28 /L
Daily
Grab
E
Temperature
Daily
Grab
E
Total Nitrogen (NO2+NO3+TKN)
Quarterly
Composite
E
Total Phosphorus
Quarterly
Composite
E
Lead
2/Month
Composite
E
Cadmium
3 0 /L
Weekly
Composite
E
Chromium
2/Month
Composite
E
Nickel
2/Month
E
Copper
Weekly
-Composite
Composite
E
Silver
Weekly
Composite
E
Zinc
Weekly
Composite
E
Cyanide
37 0 /L I
Weekly
Grab
E
Arsenic
2/Month
Composite
E
MBAS
2/Month
Composite
E
H3
Daily
Grab
E
Chronic Toxicit 4
Quarterly
Composite
E
Notes
t Sample Locations E - Effluent I Influent
2 The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85 % removal)
3 The pH shall not be less than 6 0 standard units nor greater than 9 0 standard units and shall be monitored daily at the effluent by grab sample
4 Chronic Toxicity (Ceriodaphnia) P/F at 13% March June September December See conditions A(2) of the Supplement to Effluent Limitations page Quarterly chronic
toxicity sampling shall coincide with metals sampling
There shall be no discharge of floating solids or visible foam in other than trace amounts

PcimitNo NCOO2OSOO
SUPPLEfMEN 1' PO EFFLUEN I LIiSII 11l IONS
kND \IONI1012L\G REQLIREMENI'S
SPECIAL CONDI f IONS
4 (2) CHRONIC 1'OXIC11 Y P,1SS/E-11L PERM11 L11ul1 (QU ITERLI )
the cllluurt dixhWL0 shill a no umw exhibit chronic unn-ni t ing ini piuccdut,s outlmod in rho North 1wohni
CrnndnpinunChronreEfdluunBIo2ssINPIOCUIWL RcsisulNosun"IIQ95rnsuba.quenIAImons
AL ullhrent eoncenuation it sshr(h ihue ma3 be no nh%u% Ode inn baron of uproduuton of signifietnl mouaht) is 11110
(defined o ueumcnt two m the procedure document) The pump holder shall pufonn qu Utetl) monitoring using this
procedure to estibhsh comphance with the penMn condmon Ihu a-,t, will he purloined dutmg the months of March June
September end December �EFAmnt svnphng for thus testing slid, he performed a thu NPDES permitted final effluent
discharge ouloes ill Uuiununt processes
VII tosruts t,snng rcmIlts wquuui is pert of this pci mt crnrdaror i ell bit entered on the Efiluunt Dinhuge Momtottne
Form (14410 11 lot the month in uhreh a "as performed using Inc , nneter Code IGP+13 \odumn dl, DWQ Form A] I
(ongun d) Is ro be xnt to the follow mg rddreSs
\minion E'm uonmcnt d SUenU., 3 inch
North Caiohni Dnrvon aI
Witcl Qualms
4401 Ruedv Creel. Ind
Rnlugh NC 27607
I ant dat I shill be complue and mcm arc and include all suppoum cnom., r1/ph, meal me nsmcmcnts perfotmod in assou mom
vah the �o\ruts tus{s as "cll in all dose/response ditI Tot if rua.dunl Chlunnc of tnc effluent toaran svnplu must be
nuasured vul repotted rf ehlounc IS cmploved for ehsmfecuon of the % .ie sue tin
Should But: W no druh uge of flow Loin the f sihty durmg r month m shrah mmut) monitoring IS tegmrul ihu pumalec
s,rll eompletc the rnfonmuon Ioeited v the top of the nqumic tOULM ( \ I ) 051 form rndn. ring the fIuht� name permit
number pipe number coumv vnd the month/yu a Of WU report wuh rh,, PLA111011 of NO floss In the comment uea of the
Form the report sh ell be sub nnued to the Ent uonmental Scuenu,s Brineh ­u the iddre.ss cited thou e
Should an) smglu quarterly monitoring rndicitc a farlme to meet >pcenccd Imun then monthly momtoung will begun
nnmedratuly until such ume Chit a mnglu test is passed Upon p rssing this monthly test ruquuument es ell resort to quvtedy
in the months speuhed above
Should the punuttee I ul to monaoi during a month in which tCXIUt, monuonng rs required them monthly monitoring will
hcgrn nnmednteh until such ume thn a smglu rust is pnsud Upon passing this monthh test requitement will revwt ro
quaucrh in the months SPLLIAred abonc
Should am test ditI from this momtonng requnemunt of AMS F&IRMIed bs the North 11elMini Dix icon of Water.Quahty
rndre tie pownu nl imp n is to thu ru,uvmg situ tin this pumut may he ru opened and modified to Include ahun tie monitoring
wqurrunents or hmits
NOTE FdIWe to aehie,e test condmmns its specrfred in Be utcd document such n munmutn control organism survival
nunmimn control organism ieproduuion and appiopnate ensnonmental controls shall constitute an mvand test and %ill
rogwre immediate follow up resume to be completed no Her tin Be Wt day N Be monde loll "Ing Be month of Be moral
monaoung

Staff Review and Evaluation
NPDES Wastewater Permit
FACILITY INFORMATION
Facility
Town of Andrews WWTP
NPDES No
NC0020800
Design Flow (MGD)
15 MGD
Facility Class
III
STREAM CHARACTERISTICS
Stream Name Valley River
Stream Class C-Trout
Sub -basin 040502
Drainage Area (mil) 52 4
S7Q10 (cfs) 15
W7Q10 (cfs) 19
30Q2 (cfs) 30
IWC (%) 13
Proposed Changes
Parameters Affected
Basis for change(s)
Metals Limitations
Nickel
Reasonable Potential Analysis
Metals Monitoring
Copper and Silver
Reasonable Potential Analyses
Removal of special conditions
G, H, I
Not necessary
Monitoring frequencies
BOD, TSS, Fecal, TRC
2B 0500 regulations
Compliance Schedule None
Special Condition(s) Chronic Toxicity test, P/F © 13%
Permits & Engineering Comments
The previous permit included a condition on the supplement to permit cover page and in the
special conditions that the WWTP install permanent disinfection facilities Andrews received
an Authorization to Construct from the Division on May 26, 1993 and subsequently installed a
chlorine contact chamber and sulfur dioxide dechlorination facilities The supplement page has
been modifed accordingly
Although the mass balance for ammonia seems to warrant ammonia limits, no limits will be
installed as this facility currently has a chronic toxicity test
A compliance review indicated that oxygen consuming wastes have not been a problem nor have
nutrients Toxicants, however, pose a potential threat to water quality A review of toxicity
testing results indicated that 4 of the past 23 toxicity tests were failures There seems to be a
correlation between toxicity failures and incidences of high metals in the effluent, namely zinc
and copper Reasonable potential analyses conducted for all toxicants revealed that the
potential to violate a standard or action level existed for cyanide, cadmium, zinc, copper and
silver Permit limitations for cadmium and cyanide were maintained, however the cadmium
limit in the previous permit seemed to be in error The existing permit limit was 3 pg/L while it
should have been 15 pg/L This error was corrected As zmc, copper and silver do not have
standards, sampling was increased from 2/month to weekly Also, toxicity testing shall comcide
with metals monitoring Limitations for lead, arsenic, chromium, and nickel were removed and
monitoring decreased from weekly to 2/month

This facility has historically had low oigamc loading making it quite difficult for them to meet
the 85%, removal condition In fact, thu condition was nu t rarely during the previous cycle
The priority pollutant analysis icqutrcmcnt has bi.cn dropped with this renewal based on iccent
changes in Division policy
Prepared by
Regional Office Evaluation and Recommendations
CC'o-ef4 C-;7
AL ���7

Face ty Name =
NPDES # =
Ow (MDD) _
7O10s (c/s)=
IWC (%) _
Town of Andrews W WTP
NC0020800
5
15
13 42
FINAL RESULTS
SINer
Max. Pred Cw 75 6
Allowable Cw O4
Parameter— SINer
Standard= 006 ygA
n
BDL=1/2DL Actual Data
RESULTS
1
2
2
Std Dev
470467948
2
2
2
Mean
2864864865
3
1
1
C V
1 642199441
4
3
3
5
1
1
6
0 5
<1
Mull Factor= 36
7
1
1
Max Value
21 y9A
8
2
2
Max Pred Cw
756 V9A
9
1
1
Allowable Cw
0 4 V9A
10
3
3
11
0 5
<1
12
1
1
13
0 5
<1
14
1
1
15
1
1
16
1
1
17
1
1
18
3
3
19
0 5
<1
20
1
1
21
2
2
22
3
3
23
20
20
24
12
12
25
2
2
26
2
2
27
4
4
28
1
1
29
1
1
30
21
21
31
0 5
<1
32
2
2
33
2
2
34
4
4
35
1
1
36
1
1
37
0 5
<1
38
39
40
41
42

Facility Name -
NPDES # =
OW (MGD) _
7O10s (cfs)=
IWC(%)=
Town of Andrews WWTP
NC0020800
15
15
1342
FINAL RESULTS
Zinc
Max Prod Cw 184800
Allowable Cw 3726
Parameter= Zinc
Standard = 50 yg4
n
BDL=1/2DL Actual Data
RESULTS
1
12
12
Std Dev
3610 043861
2
39
39
Mean
6356486486
3
46
46
C V
5 679307065
4
42
42
5
28
28
6
84
84
Mult Factor=
B4
7
47
47
Max Value
22000 yg8
8
25
25
Max Pied Cw
184800 Pg8
9
25
25
Allowable Cw
3726 yg4
10
125
125
11
22000
22000
12
12
12
13
5
<10
14
16
16
15
35
35
16
5
<10
17
5
<10
18
27
27
19
5
<10
20
5
<10
21
160
160
22
21
21
23
23
23
24
5
<10
25
5
<10
26
18
18
27
31
31
28
40
40
29
5
<10
30
50
50
31
94
94
32
74
74
33
72
72
34
119
119
35
96
96
36
57
57
37
61
61
38
39
40
41
42

Facddy Name =
NPDES a =
Ow (MGD) _
70105 (c/s)=
IWC (%) _
Town of Andrews WVViP
NC0020800
15
15
3 42
FINAL RESULTS
Cadmium
Max Pred Cw 1938
Allowable Cw 30
Parameter= Cadmium
Standard= 1 04 pgA
n
BDL=112DL Actual Data
RESULTS
1
1
1
Sid Dev
5358987778
2
0 5
<1
.Mean
1 428571429
3
05
<1
CV
3751291444
4
0 5
<1
5
0 5
<1
6
0 5
<1
Mult Factor= 51
7
0 5
<1
Max Value
38 pgA
8
0 5
<1
Max Pied Cw
1938 pgA
9
0 5
<1
Allowable Cw
3 0 pgA
10
0 5
<1
11
0 5
<1
12
0 5
<1
13
0 5
<1
14
0 5
<1
15
0 5
<1
16
1
1
17
0 5
<1
18
0 5
<1
19
1
1
20
1 5
<3
21
0 5
<1
22
0 5
<1
23
0 5
<1
24
0 5
<1
25
0 5
<1
26
0 5
<1
27
0 5
<1
28
0 5
<1
29
0 5
<1
30
0 5
<1
31
0 5
<1
32
0 5
<1
33
1
1
34
0 5
<1
35
3
3
36
38
38
37
0 5
<1
38
0 5
<1
39
0 5
<1
40
3
3
41
0 5
<1
42
0 5
<1

Facility Name =
NPDES a -
Ow (MGD)
7010s (cts)=
IWc (%) _
Town of Andrews WWTP
NC0020800
15
15
13421
FINAL RESULTS
Chromium
Max Pred Cw
1008
Allowable Cw
3726
Parameter= Chromium
Standard= I 50 pgA
n BDL=1/2DL Actual Data RESULTS
1
2 5
<5
Std Dev
8641282816
2
5
5
Mean
9489795918
3
10
10
C V
0910586791
4
2 5
<5
5
6
6
6
7
7
Mutt Factor=
21
7
6
6
Max Value
48 NgA
8
2 5
<5
Max Prod Cw
100 8 ygA
9
2 5
<5
Allowable Cw
372 6 ygA
10
2 5
<5
11
7
7
12
2 5
<5
13
2 5
<5
14
7
7
15
16
16
16
14
14
17
6
6
18
2 5
<5
19
48
48
20
22
22
21
16
16
22
9
9
23
2 5
<5
24
19
19
25
2 5
<5
26
25
25
27
8
8
28
5
<10
29
2 5
<5
30
12
12
31
2 5
<5
32
13
13
33
7
7
34
6
6
35
8
8
36
2 5
<5
37
11
11
38
2 5
<5
39
2 5
<5
40
2 5
<5
41
16
16
42
27
27

Facility Name =
NPDES A=
Ow (MGD) _
7O10s (cfs)=
IWC (%) _
Town of Andrews W WTP
NC0020800
A1513
FINAL RESULTS
Arsenic
Max. Pred Cw 91
Allowable Cw 3726
Parameter= Arsenic
Standard = 1 50 pgA
n BDL=1/2DL Actual Data
RESULTS
1 2 5
<5
Std Dev
0802446302
2 2 5
<5
Mean
2 693877551
3 2 5
<5
C V
0297877794
4 2 5
<5
5 2 5
<5
6 25
<5
Mutt Factor =
13
7 2 5
<5
Max Value
7 pgA
8 2 5
<5
Max Pred Cw
9 1 pgA
9 2 5
<5
Allowable Cw
372 6 pgA
10 2 5
<5
11 2 5
<5
12 2 5
<5
13 2 5
<5
14 2 5
<5
15 2 5
<5
16 2 5
<5
17 2 5
<5
1B 2 5
<5
19 7
7
20 2 5
<5
21 2 5
<5
22 2 5
<5
23 2 5
<5
24 2 5
<5
25 2 5
<5
26 2 5
<5
27 2 5
<5
28 2 5
<5
29 2 5
<5
30 2 5
<5
31 2 5
<5
32 2 5
<5
33 2 5
<5
34 2 5
<5
35 2 5
<5
36 2 5
<5
37 2 5
<5
38 2 5
<5
39 2 5
<5
40 2 5
<5
41 2 5
<5
42 2 5
<5

Facility Name =
NPLIES p =
Ow (MGO) _
7O10s (cls)=
IWC (%) _
FINAL RESULTS
Cyanide
Max. Prod Cw 38
Allowable Cw 373
Parameter= C amde
Standard= 1 5 p9A
n
BDL=112DL Actual Data
RESULTS
1
12
12
Sid Dev
4473300422
2
15
15
Mean
5 785714206
3
9
9
C V
0773163036
4
11
11
5
2 5
<5
6
2 5
<5
Mult Factor=�
7
2 5
<5
Max Value
19 NM
8
2 5
<5
Max Pled Cw
38 ygA
9
2 5
<5
Allowable Cw
37 3 YBa
10
2 5
<5
11
7
7
12
2 5
<5
13
2 5
<5
14
7
7
15
9
9
16
2 5
<5
17
11
11
18
15
15
19
2 5
<5
20
10
10
21
2 5
<5
22
9
9
23
2 5
<5
24
5
5
25
2 5
<5
26
13
13
27
16
16
28
2 5
<5
29
2 5
<5
30
7
7
31
2 5
<5
32
6
6
33
6
6
34
2 5
<5
35
7
7
36
2 5
<5
37
2 5
<5
38
2 5
<5
39
19
19
40
2 5
<5
41
2 5
<5
42
2 5
<5

Facddy Name =
NPDES # _
Ow (MGD) _
70 fOs (cls)=
/WC (-/) =
Town of Andrews VJWTP
NC0020800
15
15
13 42
FINAL RESULTS
Lead
Max Pred Cw 133
Allowable Cw 1863
Parameter= Lead
Standard= 1 254g0
n BDL=112DL Actual Data
RESULTS
1 1 5
<3
Std Dev
1 427678292
2 4 5
<9
Mean
2091836735
3 1 5
<3
C V
0682499867
4 1 5
<3
5 1 5
<3
6 1 5
<3
Mult Factor= 19
7 1 5
<3
Max Value
7 NgA
8 1 5
<3
Max Pred Cw
13 3 Vg4
9 1 5
<3
Allowable Cw
186 3 yg4
10 4
4
11 1 5
<3
12 1 5
<3
13 1 5
<3
14 1 5
<3
15 1 5
<3
16 3
3
17 1 5
<3
18 7
7
19 1 5
<3
20 1 5
<3
21 1 5
<3
22 1 5
<3
23 1 5
<3
24 1 5
<3
25 1 5
<3
26 1 5
<3
27 5
5
28 1 5
<3
29 1 5
<3
30 1 5
<3
31 1 5
<3
32 1 5
<3
33 1 5
<3
34 1 5
<3
35 1 5
<3
36 1 5
<3
37 1 5
<3
38 3
3
39 6
6
40 3
3
41 1 5
<3
42 1 5
<3

Facility Name =
NPOES # _
Ow (MGD) _
7O10s (cfs)=
IWC (%) _
Town of Andrews W WiP
NC0020800
15
15
1342
FINAL RESULTS
Copper
Max Pretl Cw 1694
Allowable Cw 522
Parameter= Co r
Standard = 7 p9/1
n BDL=1/2DL Actual Data
RESULTS
1 8
8
Sid Dev
13 27570881
2 9
9
Mean
16 61111111
3 20
20
CV
0799206551
4 6
6
5 6
6
6 11
11
Mu/t Factor =
2 2
7 10
10
Max Value
77 pgA
a 11
1 1
Max Pretl Cw
169 4 pgA
9 11
11
Allowable Cw
52 2 pgA
10 5
5
11 9
9
12 9
9
13 7
7
14 14
14
15 11
11
16 13
13
17 23
23
18 15
15
19 20
20
20 23
23
21 29
29
22 23
23
23 17
17
24 28
28
25 8
8
26 26
26
27 13
13
28 10
10
29 10
10
30 77
77
31 15
15
32 5
5
33 29
29
34 38
38
35 24
24
36 5
5
37
38
39
40
41
42

Fachty Name =
NPDES a =
Ow (MGD) _
7O10s (cts)=
IWC (%) _
n
FINAL RESULTS
Nickel
Max Pred Cw 3706
Allowable Cw 6557
Parameter = Nickel
Standard = 88 V94
n
BDL=1/2DL Actual Data
RESULTS
1
5
<10
Std Dev
21 48819087
2
5
<10
Mean
11 3877551
3
5
<10
CV
1 886955829
4
109
109
5
5
<10
6
5
<10
Mult Factor= 34
7
103
103
Max Value
109 pg4
B
59
59
Max Prod Cw
3706 ygA
9
5
<10
Allowable Cw
655 7 ygll
10
5
<10
11
5
<10
12
5
<10
13
5
<10
14
5
<10
15
5
<10
16
26
26
17
5
<10
18
5
<10
19
5
<10
20
5
<10
21
5
<10
22
5
<10
23
5
<10
24
5
<10
25
5
<10
26
5
<10
27
5
<10
28
5
<10
29
5
<10
30
5
<10
31
5
<10
32
5
<10
33
5
<10
34
5
<10
35
20
20
36
5
<10
37
5
<10
38
5
<10
39
5
<10
40
5
<10
41
10
10
42
15
15