NC0000752_Staff Comments_20001219

NPDES DOCUMENT SCANNING: COVER :SHEET
NPDES Permit:
NC0000752
Roanoke Rapids Mill WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Staff Comments
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Permit
History
Document Date:
December 19, 2000
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NPDES Permit Rating Work Sheet
NPO ESNo.:I?\ 0,01 16101 1C-12-1 •
O Regular Addition
O .Discretionary Addition
O ' Score chsiige, but no
Status change •
O Deletion ..•
Facility Name:
MM 4_11
pQ�`'�-!l jlavd_it4 , 1 l A F-tKI'"IAI 1 Ir 1vi�I� �I I�I vI PIC/Ai/4111i
City. I KA t D Ii.1 tltir1i.. j( 10
Receiving Water: I.2:1I0IA-1t" 1 t' 1 l 1 1 V-I-11\/ I 14F 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1
Reac h Number: I 1 1 1 1 1 1 1 1 1 1 1
Is this fadllty 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 cooling pond/lake)
2. A nuclear power plant
3. Cooling water discharge greater than 25% of the receiving stream's 7Q10 flow rate
0 YES; score is 600 (stop here) ❑ NO (continue)
FACTOR 1: Toxic Pofutant'Potentlal
PCS SIC Code: t I 1-11 Primary SIC Code: I24'�41
is this permit for a munlclpal separate storm sewer
serving a population greater than 100,000?
0 YES; score is 700 (stop here)
❑ NO (continue)
Other SIC Codes: 1 1 11 —I 1 1 1 1 1 1 ill 1 Il_I-11
Industrial Subcategory Code: 1 1I 1 (Code 000 if no subcategory)
Determine the Toxicity potential from Appendix A. Be sure to use the TOTAL toxiclty potential column and check one)
Toxldty Group Code Points
0 No process
waste streams 0 . 0
❑ I.
1
5
❑ 2. 2 10
Toxicity Group Code Points
❑ 3.
0 4.
3 15
4 20
❑ 5. 5 25
❑ 6. 6 30
Toxlclty Group Code Paints
0 7.
D 8.
❑ 9. •
)410.
7 • 35
8 40
9 45
•
c� :•: �-.,,./ s -� Points Fattoc.l 1 . •
FACTOR 2: Flow/Stream Flow Volume (Conrilote igthf rSocnon A orSelction 8; chock only on.)
245
Section A —Wastewater Flow Only Considered
Wastewater Type
(See Instructions)
Type 1: Flow < 5 MGD
Flow 5 to 10 MGD
Flow >10 to 50 MGD
Flow > 50 MGD
Type II: Flow <1 MGD
Flow 1 to 5 MGD
Row >5 to 10 MGD
Flow >10 MGD
Type III:
Flow <1 MGD
Flow 1 to 5 MGD
Flow >5 to 10 MGD
Flow >10 MGD
O
0
O
0
O
O
Section B —Wastewater and Stream Flow Considered
Code Points Wastewater Type
(See Instructions)
11
12
13
14
0
10
20
30
21 10
22 20
2
•4
31
32
33
34
50
0
10
20
30
Percent of lnstream
Wastewater Concen-
tration at Receiving
Stream Low Flow
TYPE 1/111: < 10%
a 1096 to <50%
z 5096
Type ll: <1096
a 1096 to <5096
a 5096
Code Points
O 41 0
O 42 10
O 41 20
O 51 0
O S2 20
❑ 53 30
C eCked from Section A or B: I i
`.Total Points Factor 2: tl

• 6 .. t
NPDES Permit Rating Work Sheet
FACTOR 3: Conventional Pollutants NPDES No.: I MA CI ° 101 ° 101 1I SIZ I
(only when limited by the poimlt)
A. Oxygen Demanding Pollutant: (check one) All BOD 0 COD ❑ Other:
Permit Limits: (check one)
B. Total Suspended Solids (TSS)
Permit Limits: (check one)
Points
0
5
%2
0 <100 lbs/day
O 100 to 1000 lbs/day
>1000 to 3000lbs/day
>3000 Ibs/day 4 )
<100 Ibs/day
100 to 1000 Ibs/day
>1000 to 5000 tbs/day
>5000 tbs/day
Code
1
2
Code
1
2
...:Code Checked:
. Points Scored: • 1 © I
__ Sods Checked: dj
Polnts Scared: i :10 I
C. Nitrogen Pollutant: (check one) 0 Ammonia ❑ Other:
Permit limits: (check one)
0
0
0
•
Nitrogen Equivalent
<300 lbs/day
300 to 1000 lbs/day
>1000 to 3000 Ibs/day
>3000 lbs/day
ta_d-5
2
3
4
• .r
1S
20
Code Checkedt
Points Scored: LA_
otal Points Factor 3: i'rt a 1
FACTOR 4: Public Health Impact
Is there a public drinking water supply located within S0 miles downstream of the effluent discharge (thh includes any body of
water to which the receiving water is a tributary)? A public drinking water supply may include infiltration gallery or other
methods of conveyance that ultimately get water from the above referenced supply.
BYES (If yes, check toxicity potential number below)
0 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. (8e
sure to use the human health toxicity group column — check one below)
Toxicity Group Code Points
0 No process
waste streams 0 0
❑ 1. 1 0
❑ 2. 2 0
Toxicity Group Code Points
❑ 3.
❑ 4.
❑ S.
❑ 6.
3 0
4 0
5 5
6 10
Toxidty Group Code Points
❑ 7.
❑ a.
❑ 9.
IA10.
7 1S
8 20
9 2S
01)
.Code.Nu nberChecked: I P 1
Total Points Factor 4: i S
2

FACTOR 5: water Quality Factors
NPDES Permit Rating Work Sheet _
NPDES No.: I N1 CI 0101 ° I ° 1 f1 `51 " I
A. Is (or will) one or more of the effluent discharge limits based on water quality factors of the recehdng stream (rather than
technology -based federal effluent guidelines, or technology -based state efferent guidelines), or has a wasteload allocodon
been assigned to the discharge?
O Yes
No
Code Points
1 10
8. is the receiving water In compliance with applicable water quality standards for pollutants that are water quality limited In
the permit?
"( Yes
❑ No
Pol
2
C. Does the effluent discharged from this fadllty exhibit the reasonable potential to violate water quality standards due to whole
effluent toxidty?
Yes
O No
2
• Code NUsiniier CFiecked:.:.
`ti Points factor.. .2i .+-011:`•
•
0
FACTOR 6: Proximity to Near Coastal Waters
A. Base Score. Enter Row code here (from Factor 2): Z 1
Check appropriate facility HPRI Code (from PCS):
HPRI d Code HPRI Scope
O 1 1 20
❑ 2 2 0
❑ 3 3 30
C/
S 5 20
HPRI code checked: I I
Base Score: (HPRI Score) , x (Multiplication Factor)
B. Additional Points — NEP Program
For a fadllty that has an HPRI code of 3, does the fadllty
discharge to one of the estuaries enrolled in the National
Estuary Protection (NEP) program (see instructions) or
the Chesapeake Bay?
❑ Yes
No
Code Points
1 10
Enter the muidpilcadon factor that corresponds
to the flow code: 1 ljJ
Flow Code
11,31,or41
12,32,or42
13,33,or43
14or34
21 or 51
22 or 52
23 or 53
24
Multiplication Factor
0.00
0.05
0.10
0.15
0.10
0.30
0.60
1.00
f O _ 0 (TOTAL POINTS)
C. Addidonal Points — Great Lakes Area of Concern
Fora fadlity that has an HPRI code of 5, does the facility
discharge any of the pollutants of concern Into one of the
Great Lakes' 31 areas of concern (see Instructions)
Code Points
❑ Yes 1 10
No
•

SCORE SUMMARY
NPDES Permit Rating Work Sheet
NPDES No.:INIC I(JI 0l010
Factor Dcsvlptlon Total Points
1 Toxic Pollutant Potential
2 Flow/Streamflow Volume
3 Conventional Pollutants
4 Public Health Impacts
5 Water Quality Factors
6 Proximity to Near Coastal Waters
TOTAL (Factors 1 through 6)
S1. Is the total score equal to or greater than 80?
to
L)
Yes (Facility is a major) ❑ No
52. If 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:
OLD SCORE
Date
4