NC0045993_Facility Rating Sheet_19900928

NPDES DOCUHENT SCANNIN`: COVER SHEET
NC0045993
Teledyne ALLVAC 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
Facility Rating Sheet
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
September 28, 1990
Thing document is priated an reuse paper - imraore aay
coateat oa the reYerse side

NPDES Permit Rating Work Sheet
NPDES No.: I f vII `-1 (II U 1 ( IS I f I/ I-) I
Facility Name: /� `
IrJ IT- IF i i IN I/cEl 141� 16 I VI`rQ
ICI 1 1 1 I 1 1
City: 11 4 0 1 /v 1 (--I c 1 G 1 1 I 1 1 1 1 1 1 I 1 1 I
Receiving Water: I1- 1 ( IC 1 1 AI if I !J IS le I / 1 lc IA I K Ix 1 1
Reach Number: I 1 1 1 1 1 1 1 1 1 1 1
Is this facility a steam electric power plant (SIC=4911)
with one or more of the following characteristics?
1. Power output 500 MW or greater (not using a coding pond/lake)
2. A nuclear power plant
3. Cooling water discharge greater than 25% of the receiving stream's 7Q1 0 flow rate
❑ YES; score Is 600 (stop here) ❑ NO (continue)
FACTOR 1: Toxic Pollutant Potential
I I I I I I I I
11 1 I 1 1
Regular Addition
J Discretionary Addition
U Score change, but no
status change
O Deletion
1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1
Is this permlt for a munklpal separate storm sewer
serving a population greater than 100, 0007
❑ YES; score is 700 (stop herr)
(LI NO (continue)
PCS SIC Code: lJI ) 15 I) 1 Primary SIC Code: 1 3I) 1 51 1
Other SIC Codes: 1 31 3 I.LIc! I IIIiI 11III 11111
Industrial Subcategory Code: 11I 7 1 (Code 000 if no subcategory)
Determine the Toxicity potential from Appendix A. Be sure to use the TOTAL toxicity potential column and check one)
Toxicity Group Code Points
❑ No process
dal waste streams 0 0
❑ 1. 1 5
❑ 2. 2 10
w:Zt{i;N 4
W.S •:18,
Toxicity Group Code
❑ 3.
❑ 4.
❑ 5.
❑ 6.
Points
3 15
4 20
5 25
6 30
Y%
❑ 9.
❑ 10.
Toxktty Group Code Points
❑ 7. 7 35
8 40
9 45
10 50
Code Number Checked: IS & 1
Total Po tts Factor 1:'I
FACTOR 2• Fl w/Strearn Flow Vokim (Compote ailh.r S.clion A orS+cllort 5; check only ono)
Section A —Wastewater Flow Only Coruldered
Wastewater Type
(See Instructions)
Type is Flow < S MCD
Flow 5to10MCD
Flow >10 to 50 MGD
Row > 50 MC D
tiff ype 11:
Flow <1 MGD
Flow 1 to 5 MGD
Flow >5 to 10 MGD
Flow >10 MGD
Type III: Flow <1 MGD
Flow 1 to 5 MGO
Flow >5 to 10 MGO
Flow>10 MCD
Code Points
❑ 11 0
❑ 12 10
❑ 13 20
O 14 30
❑ 21 10
❑ 22 20
❑ 23 30
O 24 50
O 31 0
❑ 32 10
❑ 33 20
❑ 34 30
Section B -Wastewater and Stream Flow Considered
Wastewater Type
(See Instructions)
TYPE 1/HI:
Vleype N:
Percent of instream
Wastewater Concen-
tration at Receiving
Stream Low Fiow
<10%
2.1096 to <5096
2 50%
<10%
V10% to 60%
2 5094
Cock Points
❑ 41 0
❑ 42 10
❑ 43 20
❑ 51 0
❑ 52 20
❑ 53 30
1
Code Checked from Seddon A or B: f 5 I Z 1
Total Paints Factor Z: 12-10
f-.._J __ f. .....

FACTOR 3: Conventionci Pollutants
(only when ILnited by the permit)
A Oxygen Demanding Pollutant: (ch .ck one) ❑ BOD ❑ COO ❑ Other:
Permit Limits: (check ore)
B. Total Suspended Solids (TSS)
Permit Limits: (check one)
NPDES Permit Rating Work Sheet: �1
NPDES No.: I 'v I C 1 d Ili I/I/I 31
Code Ports
O <1001bs/day 1 0
O 100 to 1000 Ibs/day 2 5
❑ >1000 to 3000 Ibs/day 3 15
O >3000 lbs/day 4 20
Code Points
O <100Ibs/day 1 0
❑ 100 to 1000 Ibs/day 2 5
O >1000 to 5000 lbs/day 3 15
O >So00lbs/day 4 20
Code Checked: I I
Points Scored: 1 I I
Code Checked: I
Points Scud: I=I_(
C. Nitrogen Pollutant: (check one) ❑ Ammonia 0 Other:
Nitrogen Equivokn( Code Ports
Permit Limits: (check one) 0 <300 Ibs/day 1 0
O 300 to 1000 Ibs/day 2 5
❑ >l000 to 3000 Ibs/day 3 15
❑ >3000 Ibs/day 4 20
Code Checked: 1 I
Points Scored: 1_II
Total Points Factor 3: I 1 O1
FACTOR 4: Public Heatth Impact
Is there a public drinking water supply located within S0 miles downstream of the effluent discharge (this Indudes any body of
water to which the receiving water Is a tributary)? A public drinking water supply may include Infiltration galleries, or other
methods of conveyance that ultimately get water from the above referrnced supply.
❑ YES (If yes, check toxicity potential number below)
NO (If no, go to Factor 5)
Determine the human health toxicity potential from Appendix A. Use the same SIC code and subcategory reference as In Factor 1. (Be
sure to use the humkp begat toxicity group column — check one below)
Toxicity Group Code Points
❑ No process
waste streams 0 0
❑ 1. 1 0
❑ 2. 2 0
Toxicity Group Code Paints
Toxicity Group Code Points
❑ 3. 3 0 ❑ 7. 7 15
❑ 4. 4 0 ❑ 8. 8 20
❑ 5. 5 5 ❑ 9. 9 25
❑ 6. 6 10 ❑ 10. 10 30
Code Number Checked: I I I
'total Points Factor 4: I I O I
2

NPDES Permit Rating Work Sheet }_
FACTOR 5: Water Quality Factors NPDES No.: IJk ICI I O I VI S I T i 13 I
A. Is (or will) one or more of the effluent discharge limits based on water quality factors of the receiving stream (rather than
technology -based federal effluent guidelines, or technology -based state effluent gukiellnes), or has a wastdoad allocation
been assigned to the discharge?
Code Points
a Yes 1 10
0 No 2 0
8. Is the receiving water In compliance with applicable water quality standards for pollutants that are water quality limited In
the permit?
Code
Yes 1
Points
0
.3 No 2 5
C. Does the effluent discharged from this facility exhibit the reasonable potential to violate water quality standards due to whole
effluent toxicity?
ca Ye
❑ No
Code Points
1 10
2 0
Code Number Checked: A ( I el ! i C i t
Points Factor 5: A I IO I+ 8 1 i+ C j1
FACTOR 6: Proximity to Near Coastal Waters
A. Base Score: Enter flow code here (from Factor 2): III
Check appropriate facility HPRI Code (from PCS):
❑
❑
❑
❑
HPRI 0
1
2
3
4
5
HPRI code checked: 1 I
Code
2
3
4
5
NPR! .core
20
0
30
0
20
Base Score: (HPRI Score) x (Multiplication Factor)
Enter the multiplication factor that corresponds
to the flow code: I I I
8. Additional Points — NEP Program
For a facility that has on HPR1 code of 3, does the fadilty
discharge to one of the estuaries enrolled in the National
Estuary Protection (NEP) program (see Instructions) or
the Chesapeake Bay?
Code Points
U Yes 1 10
U No 2 0
Code Nun►ber Checked: A 1 1
Row Code
11, 31, or 41
12, 32, or 42
13, 33, or 43
14or34
21 or 51
22 or 52
23 or 53
24
Muttlpikatlon Factor
0.00
0.05
0.10
0.15
0.10
0.3.0
0.60
1.00
(TOTAL POINTS)
C. Additional Points — Great Lakes Area o/ Concern
For a fadllty that has an HPRI code of 5, does the fadlity
discharge any of the pollutants of concern into one of the
Great Lakes' 31 areas of concern (see instructions)
8 1I C II
Points Factor 6: Al I I + & II ) + C I_I_I
Code
0 Yes
Points
10
❑ No 2 0
= 1 I TOTAL
3

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.SCORE SUMMARY NPDES No.: I/T I CIO IC I I(Ir I F Ir 1 J I
Factor
Description Total Points
To#k Pollutant Potential (fU
2 Floiw/Strramflow Volume Zo
3 Conversional Pollutants
4 Public Health Impacts
5 Water Quality Factors Z-0
6 Proximity to Near Coastal Waters
TOTAL (Factors 1 through 6)
80
Si. Is the total score equal to or greater than 807 aYes (Facility is a major) ❑ No
1
S2. ff the answer to the above question is no, would you like this facility to be discretionary major?
❑ No
❑ Yes (Add 500 points to the above score and provide reason below:
Reason:
NEW SCORE: �O
OLD SCORE:
l
l•
Permit Reviewers Name
( c(,i.4)21— 9/1
Phone
4