NC0021733_Permit Modification_19910731

DIVISION OF ENVIRONMENTAL MANAGEMENT
July 31, 1991
fie)-mael"01
TO: Dale Overcash
THRU: Ruth Swanek R(,:�,
FROM: Jacquelyn M. Nowell4ix"
SUBJECT: Modification of Permit for Town of Marshall
NPDES Permit No. NC0021733
Madison County
Per your request, the Technical Support Branch has completed a
review of pretreatment information and daily monitoring reports for the
subject facility. It is our recommendation that the facility conduct
monthly effluent monitoring for the following constituents: copper,
cyanide, silver, and zinc. The permit requirement for quarterly acute
toxicity testing, fathead minnow 24 hour -no significant mortality,
should be continued.
If there are any questions or concerns about this facility, please
call me at 733-5083, ext. 512.
cc: Roy M. Davis
Central Files
°Files

07/30/91 ver 3.1
Facility:
NPDES Permit No.:
Status (E, P, or M) :
Permitted Flow:
Actual Average Flow:
subbasin:
Receiving Stream:
Stream Classification:
7Q10:
IWC:
Stn' d / Bkg
Pollutant AL Conc.
(ug/1) (ug/1)
---------
Cadmium
-- --------
S
2.0
Chromium
S
50.0
Copper
AL
7.0
Nickel
S
88.0
Lead
S
25.0
Zinc
AL
50.0
Cyanide
S
5.0
Mercury
S
0.012
Silver
AL
0.06
Selenium
S
5.00
Arsenic
S
50.00
Phenols
S
NA
NH3-N
C
T.R.Chlor.AL
17.0
Pollutant
Cadmium S I
Chromium S I
Copper AL I
Nickel S I
Lead S I
Zinc AL I
Cyanide S I
Mercury S I
Silver AL I
Selenium S I
Arsenic S I
Phenols S 1
NH3-N C I
T.R.Chlor.AL I
I
I
I
Allowable
Load
(#/d)
72.13
601.06
112.20
373.36
379.62
627.19
35.18
0.25
2.89
28.85
240.42
T O X I C S R E V I E W
TOWN OF MARSHALL
NC0021733
M
0.4 mgd
0.1 mgd
'040304
FRENCH BROAD RIVER 1---------PRETREATMENT DATA -------------- I ---- EFLLUENT DATA---- 1
C I ACTUAL PERMITTEDI I
535.0 cfs I Ind. + Ind. + I FREQUENCY I
0.12 I Domestic PERMITTED Domestic I OBSERVED of Chronicl
Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria I
I Eff. Load Load Load Load Load I Conc. Violationsl
I % (#/d) (#/d) (#/d) (#/d) (#/d) I (ug/1) (#vio/#sam)I
I-------- -------- -------- -------- --------- -------- I -------- --------- I
I 92% 0.1 0.1 0.16 I I
1 76% 0.1 0.0 0.08 I I I
1 82% 0.3 0.1 0.35 I 300.0 I N
1 32% 0.0 0.0 0.03 I I P
1 81% 0.1 0.0 0.09 I I U
1 77% 0.3 0.3 0.52 I 212.0 1 T
1 59% 0.1 0.1 0.12 I I
1 86% 0.0 0.0 0.00 I 1 S
1 94% 0.0 0.0 0.01 I 20.0 I E
1 50% 0.0 0.0 0.00 I I C
1 40% 0.0 0.0 0.00 I I T
1 99% 45.8 I I 1
I 0% I I D
1 0% I I N
I I I
I I I
I I I
- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D--------- MONITOR/LIMIT --------- 1--ADTN'L RECMMDTN'S--
Effluent Effluent Effluent Instream I Recomm'd
Conc. using using Conc. Based on Based on Based on I FREQUENCY INSTREAM
CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED 1 Eff. Mon. Monitor.
Criteria Influent Influent OBSERVED Influent Influent Effluent 1 based on Recomm'd ?
(ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data I OBSERVED (YES/NO)
----------------------------------------------------------I--------- -
1727.806 13.110 0.000 0.00 I
43195.161 19.665 0.000 0.00 I
6047.323 64.525 0.000 0.35 Monitor Monitor I Monthly NO
76023.484 20.894 0.000 0.00 I
21597.581 17.514 0.000 0.00 1
43195.161 122.495 0.000 0.25 I Monthly NO
4319.516 50.391 0.000 0.00 Monitor 1
10.367 0.000 0.000 0.00 I
51.834 0.615 0.000 0.02 Monitor Monitor 1 Monthly NO
4319.516 0.000 0.000 0.00 I
43195.161 0.000 0.000 0.00 1
0.000 0.000 0.000 0.00 1
0.000 0.00
14686.355 0.00 Limit 1
I
I
I

NPDES PPETREAT-TNT INFOPMATION REQUEST FORM
!FACILITY NAME: j 0V Ut�(( NPDES NO. NCO
I — I
DAE:!REQUESTERREGION:
I 4r I
I
1yMV41#j ,Is N all
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 a pretreatment program.
Please include the following conditions:
Program Implementation
Additional Conditions
(attached)
SIGNIFICANT IMUSTRTAI, USERS' (SIUs) CONTRIBUTIONS
SIU FLAW - TOTAL: U. () I rye
I ,
I ,
- COMPOSITION: TEXTILE: MGD
METAL FINISHING: /� MGD
OTHER ,-, leave : CLMCI
MGD
I
' TC I
I I
' MGD '
' I
I '
HEADkCRKS REV N1
I PASS '
I
PARAMETER !THROUGH DAILY LOAD IN LBS/DAY ACTUAL
I
!ALLOWABLE DOMESTIC PERMITTED INDUSTRIAL % REMOVAL
Cr
c I
'
Cu •r Q.c'y �a *
Ni 7 '
Zn • iZ
I
CN 5 I
Phenol
Other
I
I
o
S� ^8.23 — 60
' I
RECEIVED: �/L/a RMEWED BY: 5 RE'I[JRNED:
I I

TZ ;1vA,5x411
31
Z,o /
71 fO
o. a9
1, 0l'
—111, 6,�d
dbl9l �7a
0,67
4,01
0'20
b 0,071
0 , l L
7APa
D, dSL
��Pv
�OV6
`00
.dY9
9 o
I Z (.'
r!
'

`71v d /tpo'
State of North Carolina
Department of Environment, Health, and Natural Resources
Asheville Regional Office
James G. Martin, Governor Ann B. Orr
William W. Cobey, Jr., Secretary Regional Manager
DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
June 11, 1991
it
MEMORANDUM RECEIVED
JUN 1 71991
TO: Dale overcash TECHNICAL SUPPORT 3R'i'4NCH
Permits and Engineering Section
THROUGH: Roy M . Davis �`-`�
Regional Supervi
Forrest R. W s
Regional Wate ity Supervisor
FROM: Michael R. Pa ker M
Environmental Specialist
SUBJECT: Modification of NPDES Permit
No. NCO021733
Town of Marshall
Madison County
The Town of Marshall's new wastewater treatment facility is now
on line and operating. The facility has been classified as a Class
III facility (rating sheet is attached). It is requested that the
Permit be reopened and modified to include the following items:
1. The monitoring requirements should be changed to reflect the
requirements of a Class III facility.
2. The Town is in the process of developing a Pretreatment
Program which should be completed by the time the permit is
modified. The pretreatment language in the permit should be
changed from development to implementation.
0
Interchange Building, 59 W[xAfln Place, Atiheville, N.C. 28801 • Telephone [phone]
An Fqual Opportunity Affirmative Action Fmplover

Dale Overcash Memo
June 11, 1991
Page Two
3. The Town's SIU is a metal finishing industry. Appropriate
metals limits and monitoring should be included in the permit.
The development of the monitoring requirements and limits for
metals should be coordinated with the Technical Support Branch.
If you have questions, please call me at 704/251-6208.
xc: Trevor Clements
Cindy Finan

RATING SCALE FOR CLASSIFICATION OF FACILITIES
Name of Plant: '_7_11L,,j 6E A4.Aw.SAd//
Owner or Contact Person:Z2/<r_soV dJ-IQ., %V4�rA
Mailing Address:_P6�FAZS 140
County: 12y&1%5-onj Telephone: 7o
NPDES Permit No. NC00P,/733 Nondisc. Per. No.
IssueDate:��� Expiration Date:-1T- -c- 3j. /S 3 Z
Existing Facil1 , ) New Facility L---
R ate d Date: , /9 9 /
Reviewed (Train. & Cert.) Reg. Office
Reviewed (Train. & Cert.) Central Office
O R C TAf Qu_ee^1 Grade _—ZZZ7-
EM POINTS ITEM
Industrial Pretreatment Units and/or
Industrial Pretreatment Program
(see -definition No. 33)
DE5IGN FLOW OF PLANT IN GPO
(not applicable to non -con laminated cooling
waters, sludge handling facilities for water
purification plants, totally closed cycle
systems (def. No. 11), and facilities
consisting only of Item (4) (d) or Items (4) (d)
and (11) (d))
0 20,000..........................
20.001 50.000..........................
50,001 -- 100,000..........................
100,001 -- 250,000..........................
250,001 -- 500,000..........................
500.001--1,000,000................ ........
1.000,001 -- 2.000,000 .................. . ..
2.000,001 (and up) - rate 1 point additional for each
200,000 gpd capacity up to a
maximum of 30
Design Flow (gpd) : �OOi Dj
,3) PRELIMINARY UNITS (see definition no. 32)
(a) Bar Screens ..... ................ ... . .
or
(b) Mechanical Screens, Static Screens or
Comminuting Devices ........... ..
(c) Grit Removal ..............
or
(d) Mechanical or Aerated Grit Removal
(e) Flow Measuring Device ....... ....
or
(f) Instrumented Flow Measurement
(g) Preaeration .
(h) Influent Flow L=qualizaiion
(i) Grease or Oil Separators
(1) 1'rechlorin'll 1011
1
2
3
8
10
0
2
1
2
1
CD
2
2
Gravity 2
Mechanical 3
Oissolved Air I�lolnUon 8
i Z
POINTS
(4) PRIMARY TREATMENT UNITS
(a) Septic Tank (see definition no. 43) ..............
(b) Imhoff Tank ..................................
(c) Primary Clarifiers .
(d) Settling Ponds or Settling Tanks for Inorganic
Non -toxic Materials (sludge handling facilities
for water purification plants, sand, gravel,
stone, and other mining operations except
recreational activities such as gem or gold
mining) ...................................
(5) SECONDARY TREATMENT UNITS
(a) Carbonaceous Stage
(i)Aeration - High Purity Oxygen System .... .
Diffused Air System .... .
Mechanical Air System (fixed,
floating or rotor) ....... .. . ... .
Separate Sludge Reaeration .... .
(i i) Trickling Filter
High Rate ...................
Standard Rate ...............
Packed Tower ...............
(i i i) Biological Aerated Filler or Aerated
Biological Filter ......................
(i v) Aerated Lagoons ..................... .
(v) Rotating Biological Contactors ....... . . .
(v i) Sand Fillers -
intermittent biological .
recirculating biological
(vii) Stabilization Lagoons .......... .......
(viii)Clarifier ............................ .
(ix) Single stage system for combined
carbonaceous removal of BOO and
nitrogenous removal by nitrification
(see def. No. 12) (Points for this item
have to be in addition to items (5) (a)
(i) through (5) (a) (viii) . .. ... . ... . . . . . .
(x) Nul(ient additions to enhance BOD
removal.. ............. .. .
(x.i) Biological Culture (-Super 13ugs") addition
to enhance organle compound removal . . . . .
2
5
5
2
20
10
3
7
5
10
10
10
2
3
5
�
�._
8
S
5
Z-5

Itullr'I'mily Oxyoc-11 .`.y;.i•:rn
,!il
Diffused Air Sy;r•rn
•10
Mechanical Air Syslori (fixed•
floating, or rotor) . -
f1
Separate"Sludge Reaerai,on
3
(ii) Trickling Filler -
High Rate ..............
7
Standard Rate .. _ ..... ...
5
Packed Tower.._.........
5
(i i i) Biological Aerated Filter or Aerated
Biological Filter .......... . . . .. . .. . . . . ...
1 0
(iv) Rotating Biological Contactors ............
10
(v) Sand Filter -
intermittent biological ........
2
recirculating biological ........
3
(vi) Clarifier
5
TERTIARY OR ADVANCED TREATMENT UNIT
(a)
Activated Carbons Beds -
without carbon regeneration ...................
5
with carbon regeneration ................
15
(b)
Powdered or Granular Activated Carbon Feed -
without carbon regeneration ............
5
with carbon regeneration ...................
15
(c)
Air Stripping .................. . ..........
5
(d)
Denitrification Process (separate process)
1 0
(e)
Electrodialysis ............. • • • • - . _ - . - . - .
5
(f)
Foam Separation ................. . . . . . . . . .
5
(9)
. .
Ion Exchange ................................
.
5
(h)
Land Application of Treated Effluent
(see definition no. 22b) (not applicable for
sand, gravel, stone and other similar mining
operations)
:,(i) on agriculturally managed sites (See def.
No. 4)........................
(ii) by high rate infiltration on non -agriculturally
managed sites (includes rotary distributors
and similar fixed nozzle systems) ...........
(iii) by subsurface disposal (includes low pressure
pipe systems and gravity systems except at
plants consisting of septic tank and nitrifica-
tion lines only) .............................
4
(i)
Microscreens ...................
5
(j)
Phosphorus Removal by Biological Processes
(See def. No. 26) .............................
20
{k)
Polishing Ponds - without aeration .......
2
with aeration ..........
5
(1)
Post Aeration - cascade ..............
0
{m)
diffused or mechanical
Reverse Osmosis
5
(n)
..............
Sand or Mixed -Media Filters -low rate ...........
2
(o)
high rate .........
Treatment processes for removal of metal or
5
cyanide....................................
15
(p)
Treatment processes for removal of toxic
materials other than metal or cyanide ... _ . _ ..
15
SLUDGE TREATMENT
(a)
Sludge Digestion Tank - Heated .............
10
Aerobic ........ . ...
(b)
..
Unheated :.....
Sludge Stabilization (chemical or thermal)
3
(c)
. . _ _
Sludge Drying Beds - Gravity ............
_ . . 5
(d)
Sludge Elulrialion ........ Vacuum Assisted . ..
(e)
.......
Sludge Conditioner (chemical or thermal)
5
(1)
Sludge Thickener (gravity)
5
(g)
.. _ _ ... .
Dissolved Air Flotation Unit
5
(not applicable to a unit rates as (3) (I)
6
(11)
Sludge Gas Utilization (including gas storage)
2
i') :iluiiyc Holehng ,,.;jK Aerated `
Non -aerated . 5
(I) Sludge Incinerator (not including activated
carbon regeneration) . 10
(k) Vacuum Filter, Centrifuge or Filter Press or other
similar dewalering devices .......... .. 100
(8) ..SLUDGE DISPOSAL (including incinerated ash)
(a)Lagoons
..................
(b) Land Application (surface and subsurface)
2
(see.definilion 22a)
-where the facility holds the .land app. permit
10
-by contracting to a land"appiicalion operator who
holds the land. application permit
.... " " . - _
-land application of sludge by a contractor who does
not hold the permit for the wastewater treatment
facility where the sludge is
generated _
(c) Landfilled (burial) , .. ". _ _ _ _ .. "
5
(9) DISINFECTION
(a) Chlorination .
" ....... - .............
(b) Oechlorination
5
............ "
(c) Ozone...................1.........--
5
(d) Radiation .....
.
(10) CHEMICAL ADDITION SYSTEM (S) {See definition No. 9)
5
(not applicable to chemical additions rated as item
(3) 0). (5) (a) (xi), (6) (a). (6) (b). (7) (b). (7) (e).
(9) (a), (9) (b) or (9) (c) 5 points each: List:
5
(11) MISCELLANEOUS UNITS
(a) Holding Ponds, Holding Tanks or Settling Ponds
for Organic or Toxic Materials including wastes
from mining operations containing nitrogen and/or
phosphorous compounds in amounts significantly
greater than is common for domestic wastewater ..
(b) Effluent Flow Equalization (not applicable to storace
basins which are inherent in land application systems). 2
(c) Stage Discharge (not applicable to storage basins
inherent in land application systems .................................
(d) PumpsPower
Supply...
0 I ..............
ly..._...................................... L
(e) Sland-By
(f) Thermal Pollution Control Device .............................:
_r
ZS
TOTAL POINTS
CLASSIFICATION
Class I ......................... 5 - 25 Points
............................
Class II .............:. .......... 26- 50 Points
ClassIII ...................................................... St- 65 Points
Class IV ................ 66- Up Points
Facilities having a rating of one through four points, inclusive
do not require a certified operator- Classification of all other
facilities requires a comparable grade charge.operator in responsible
Facilities having an activated sludge process will be asslgn,,d
a minimum classification of Class II.
Facilities having treatment processes for the removal of n,e:;l!
or cyanide will be assigned a minirnum classifica1loll of i>la
e
Facilities having treatment processes for the biological re;7lov:il
of phosphorus will be assigned a inin,MUM classificaturi (,)Ii l;rtis
III