NC0089915_EPA Rating Sheet_20210201

EPA Region 4 NPDES Permit Rating Work Sheet
NPDES No.: NC0089915
Facility Name:
The Chemours Company
❑✓ Regular Addition
Discretionary Addition
❑Score change, but no
status change
▪ Deletion
city:Fayetteville, NC
Receiving Water: Cape Fear River
Reach Number: 1826
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 cooling pond/lake)
2. A nuclear power plant
3. Cooling water discharge greater than 25% of the receiving stream's 7Q10 flow rate
❑ YES; score is 600 (stop here) ❑✓ NO (continue)
FACTOR 1:Toxic Pollutant Potential
PCS SIC Code: 2869 Primary SIC Code: 2869
Other SIC Codes: 3083 3081 2821
Industrial Subcategory Code: 0
(Code 000 if no subcategory)
Is this permit for a municipal separate storm sewer
serving a population greater than 100,000?
❑ YES; score is 700 (stop here)
▪ NO (continue)
Determine the Toxicity potential from Appendix A. (Be sure to use the TOTAL toxicity potential column and check one)
Toxicity Group
❑No process
waste streams
❑ i.
❑2.
Code Points
0 0
1 5
2 10
Toxicity Group
3.
4.
5.
6.
Code
3
4
5
6
Points
15
20
25
30
Toxicity Group
7
✓ 8.
9.
10.
Code Points
7 35
8
9
10
Code Number Checked: 8
40
45
50
Total Points Factor 1: 40
FACTOR 2: Flow/Stream Flow Volume (Complete either Section A or Section B; check only one)
Section A - Wastewater Flow Only Considered
Wastewater type
(See Instructions)
Type I:
Type II:
Flow < 5 MGD
Flow 5 to 10 MGD
Flow>10 to 50 MGD
Flow> 50 MGD
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 MGD
Flow >5 to 10 MGD
Flow >10 MGD
Code Points
11
12
13
14
21
22
23
24
31
32
33
34
0
10
20
30
10
20
30
50
0
10
20
30
Section B - Wastewater and Stream Flow Considered
Wastewater type
(See Instructions)
Type I/III:
Type II
Percent of Instream
Wastewater Concen-
tration at Receiving
Stream Low Flow
<10%
>10% to <50%
>50%
<10%
>10% to <50%
>50%
El
Code Points
41
42
43
51
52
53
0
10
20
0
20
30
Code Checked from Section A or B: 42
1
Total Points Factor 2: 10

NPDES Permit Rating Work Sheet
FACTOR 3: Conventional Pollutants NPDES No.:
(only when limited by the permit)
A. Oxygen Demanding Pollutants (check one) ❑✓ BOD ❑COD❑OTHER:
Code Points
Permit Limits (check one) <100 Ibs/day 1 0
NC0089915
B. Total Suspended Solids (TSS)
Permit Limits (check one)
C. Nitrogen Pollutants (check one)
Permit Limits (check one)
❑
100 to 1000 Ibs/day 2 5
>1000 to 3000 Ibs/day 3 15
>3000 Ibs/day 4 20
Code Points
<100 Ibs/day 1 0
100 to 1000 Ibs/day 2 5
>1000 to 5000 Ibs/day 3 15
>5000 Ibs/day 4 20
Code Checked: 2
Points Scored: 5
Code Checked: 2
Points Scored: 5
❑ Ammonia ❑ OTHER:
Nitrogen Equivalent Code Points
<300 Ibs/day 1 0
300 to 1000 Ibs/day 2 5
>1000 to 3000 Ibs/day 3 15
>3000 Ibs/day 4 20
Code Checked:
Points Scored: 0
Total Points Factor 3: 10
FACTOR 4: Public Health Impact
Is there a public drinking water supply located within 50 miles downstream of the effluent discharge (this includes 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 referenced 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 human health toxicity group column and check one below)
Toxicity Group Code Points Toxicity Group Code Points Toxicity Group Code Points
3. 3 0 7. 7 15
No process —
❑
waste streams 0 0 4. 4 0 ✓ 8. 8 20
❑ 1. 1 0 5. 5 5 9. 9 25
02. 2 0 6. 6 10 10. 10 30
Code Number Checked:
8
Total Points Factor 4: _20
2

FACTOR 5: Water Quality Factors
NPDES Permit Rating Work Sheet
NPDES No.: NC008991 5
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 guidelines), or has a wasteload allocation
been assigned to the discharge?
Code Points
Z YES 1 10
▪ NO 2 0
B. Is the receiving water in compliance with applicable water quality standards for pollutants that are water quality limited in the
permit?
Z YES
▪ NO
C. Does the effluent discharged from this facility exhibit the reasonable potential to violate water quality standards due to whole
effluent toxicity?
❑ YES
ZNO
Code
1
2
Code
1
2
Points
0
5
Points
10
0
FACTOR 6: Proximity to Near Coastal Waters
A. Base Score: Enter flow code here (from Factor 2): 42
Check appropriate facility HPRI Code (from PCS):
HPRI#
1
2
3
❑ 4
❑ 5
HPRI Code Checked:
Code
1
2
3
4
5
HPRI Score
20
0
30
0
20
Base Score (HPRI Score) 0 x (Multiplication Factor)
B. Additional Points — NEP Program
For a facility that has an HPRI code of 3, does the facility
discharge to one of the estuaries enrolled in the National
Estuary Protection (NEP) program (see instructions) or
the Chesapeake Bay?
Code Points
OYES 1 10
fNO 2 0
Code Number Checked: A. 1 B. 2 C. 2
Total Points Factor 5 A. 10 +B. 0 +C. 0 = 10
Enter the multiplication factor that corresponds
to the flow code: 0.00
Flow code
11,31,or41
12, 32, or 42
13, 33, or 43
14 or 34
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
0.00 = 0 (Total Points)
C. Additional Points — Great Lakes Area of Concern
For a facility 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
n NO 2 0
Code Number Checked: A. B.
C.
Total Points Factor 6 A. 0 +B. 0 +C. 0 = 0
3

Score Summary
NPDES Permit Rating Work Sheet
NPDES No.: NC0089915
Factor Description Total Points
1. Toxic Pollutant Potential 40
2. Flow/Streamflow Volume 10
3. Conventional Pollutants 10
4. Public Health Impacts 20
5. Water Quality Factors 10
6. Proximity to Near Coastal Waters 0
TOTAL (Factors 1 through 6) 90
S1. Is the total score equal to or greater than 80? YES (Facility is a major) ❑ NO
S2. 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:
Reset Form
90
02/01/2021
Requested Status Change Effective Date
Sergei Chernikov
Permit Reviewer's Name
[e-mail]
Email Address
[phone]
Phone Number
02/01/2021
Date