NC0003719_Worksheets_20230628 (3)

2018 Generic RPA - 95% Probability/95% Confidence
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Project Information
Facility Name
WWTP/WTP Class
NPDES Permit
Outfal I
Flow, Qw (MGD)
Receiving Stream
Stream Class
HUC Number
7Q10s (cfs)
7Q10w (cfs)
3002 (cfs)
QA (cfs)
1 Q10s (cfs)
WS Barrier
❑ CHECK IF HQW OR ORW
DAK Americas
Grade II
NC0003719
001
0.500
Cape Fear River
C
3030004
791.00
791.00
791.00
4340.00
636.3
Cape Fear R. - Smithfield Packing WS-IV boundary
Latitude
34.90564
Longitude
-78.81549
Cape Fear River
Receiving Stream
WS-IV
Stream Class
7Q10s (cfs)
N/A
N/A
7Q10w (cfs)
N/A
3002 (cfs)
QA (cfs)
4676.00
1 Q10s (cfs)
Data Source(s)
1,4-dioxane data from January 2019 - April 2023.
QA used was estimated by USGS for the
downstream Cape Fear R. - Smithfield Packing
❑ CHECK TO APPLY MODEL
WS-IV boundary. Discharge is — 6 miles above WE
IV boundary 1,4-dioxane biodegradation negligible,
and concentration discharged assumed equivalent
direct discharge point and downstream WS; More
restrictive Cw allowable based on downstream WS
IV selected
Follow directions for data entry. In some cases a
comment menu list the available choices or a
dropdown menu will provide a list you may select
from. Error message occur if data entry does not
meet input criteria.
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
fPPar11
ar12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Par23
Par24
Par25
Par26
Par27
Par28
Par29
Par30
Par31
Par32
Table 2. Parameters of Concern
Name Stream Class Type Chronic Modifier Acute PQL Units
1,4-Dioxane
C
C
80
HH
1
Ng/L
1,4-Dioxane
WS
C
1 0.35
WS
1
Ng/L
yilern
roes (550109 ka`,
For[ Bragg
Cross Creek
WWTP
Faye gN..ille
Raeford
WWTP DAKAmericas
Raefor Rockfish Cr
WWTP
3719 - RPA for downstream WS- 1-2023, input
6/28/2023