NC0006564_Correspondence_20230626

Baxter
June 26, 2023
Amir Adaryani, Environmental Engineer
North Carolina Department of Environmental Quality
Division of Water Resources
1611 Mail Service Center
Raleigh, NC 27699
RE: NC0006564 Temperature Study
Response to May 26, 2023 Letter
Mr. Adaryani,
Baxter Healthcare Corporation (Baxter) provides the following responses to correspondence from
The Division of Water Resources (DWR) dated May 26, 2023. Baxter continues to explore a wide
range of temperature assessment and control options, on track with the target dates outlined in the
Temperature Compliance Schedule JCS).
The following are the enumerated responses requested within the letter:
1. Official Submittal: Any requests should be officially submitted to DWR for consideration
along with a revised / updated copy of the May 1, 2023 "Temperature Study Submittal ".
Response: At this time with the exception of item #4 below Baxter's internal process is on
track to meet the TCS compliance dates.
2. Temperature Variance: As discussed during the meeting variances are difficult to secure
and require EPA approval. If the goal is to seek a temperature variances, please submit an
official request. Be cognizant of the fact that variance request include a significant public
process.
Response: It is Baxter's intent to perform an extensive evaluation of our thermal wastewater
discharge and the characteristics of the North Fork Catawba River in the vicinity of the facility
to determine if a Clean Water Act Section 316(a) variance from the trout stream temperature
standards is appropriate. Based on the information Baxter has obtained to this point, it appears
compliance with the temperature standards for non -trout Class B waters will assure the
protection and propagation of a balanced, indigenous population of shellfish, fish and wildlife
in the receiving water.
3. Re -assessing Water Classification(s). As discussed during the meeting, changing existing
water classifications is a lengthy and difficult process. If the goal is to request a
classification change, please submit an official request. Be cognizant of the fact that such
request / change(s) include a significant public process.
Response: It is not Baxter's intent to change the exiting water classification(s).
4. Additional Time: If you wish to request an extension of the September 1, 2023 deadline to
submit the Corrective Action Plan specified in Condition A. (3) of the NDPES permit,
Baxter Healthcare Corporation
PO Box 1390, Marion, NC 28752
T 828.756.4151

please submit an official request with a complete explanation of the reasons why an
extension of time is necessary. This additional time maybe provided via a minor permit
modification (per 40 CFR Part 122.63), provided the new date(s) are not more than 120
days after the interim compliance date(s) specified in the existing permit and it does not
interfere with attainment of the final compliance date (March 1, 2026). Otherwise, this
request (if justified), would require a major NPDES permit modification.
Response: Per item #1 above and the June 1, 2023 submittal, Baxter has requested a 120 day
extension of the Corrective Action Plan submittal deadline. This is to facilitate as complete an
assessment of available options as can be achieved within the time provided. In addition, the
extension will afford Baxter an opportunity to obtain additional surface water temperature and
environmental data regarding the receiving stream in the vicinity of the facility. No other
timelines within the TCS require revision/extension currently.
S. All Contributing Flows: Evaluate and include in revised / updated report (including a
revised / updated Table 2-1) each flow from the facility with any thermal contribution to
influent (not only major ones) such as boiler blowdown, DW Auxiliary, sterilization,
extrusion, cooling tower blowdown, overflows, etcetera. Include in this evaluation at a
minimum the: flow, temperature, and destination (e.g., Cooling Recirculation or WWTP)
for each flow with a thermal contribution. For the overflow from the cooling ponds that is
sent to the WWTP, this evaluation should also include an explanation of the circumstances
under which overflow is sent to the WWTP, the frequency of overflow, the volume/flow of
overflow, the temperature of overflow, and the impact of overflow on the effluent
temperature. Appendices A and B of the submitted study should be revised as necessary.
Response: Attached is a revised water and temperature balance figure (Figure 1) and table
(Table 1) of heat each process and the conditions resulting in wastewater discharge. The. The
discharges from these sources are not overflow as defined within NPDES permitting/operation
conditions because,
1. These discharges do not bypass the wastewater treatment facility and,
2. The systems equipped with high level bypasses allowing gravity discharge to the
wastewater treatment facility contain treated water in a retention
basin for temperature reduction and emergency water supply management.
6. Data Richness and Diurnal Monitoring: Data richness plays an essential role in
compliance determination and next steps. Please provide diurnal monitoring results
(hourly or more frequent) for the effluent in comparison with ambient air temperature, and
heat exchange capacity.
Response: Please find attached a table of the requested data currently available (Table 2).
Upstream, downstream, and effluent temperatures are from the Jacobs Engineering fish
community study. The wastewater treatment facility has effluent temperature data that
currently can be tracked in three-hour increments. The facility is not equipped with a data
logging weather station to be able to provide ambient air temperature, if required this would
be sourced from the nearest publicly available weather station data. As the facility does not
have ambient air temperature data a heat exchange capacity cannot be provided within the 30
day timeframe. This is expected to be part of the assessment within the Corrective Action

Plan, as this information will directly inform the viability of mechanical heat exchange.
options..
7. New Monitoring Data and spreadsheet Format: Provide the new monitoring data from
this study (excluding eDMR) in an original spreadsheet format for further examination.
Response: An excel file of this data and the table referenced in item #6 is included with the
electronic submission of this response letter.
8. Fish Community Study: Provide fish community study results.
Response: The finalized report prepared by Jacobs Engineering is attached (Attachment 1).
9. Details on New Operations: Provide evaluation for adopting new operation plans due to
FDA requirements in comparison to current operation status in regards thermal
contribution to effluent. If such evaluation is not feasible currently, please provide a
timeline on when it would be available.
Response: FDA compliance for pharmaceutical products is based on achieved results, and
therefore no explicit regulatory rules governing new operational plans or projects can be
referenced. The requirements for sterilization are a performance -based standard, i.e., Baxter must
ensure that its product is sterile, with no acceptable levels of bioburden in final sterilized product.
The North Cove site's terminally sterilized drug products are manufactured in accordance with the
site's comprehensive control programs that, among other things, ensure that:
• pre -sterilization bioburden is adequately controlled;
• terminal sterilization is effective;
• bacterial endotoxin testing (BET) meets established specifications prior to release
• the primary packaging of the site's products is integral.
The North Cove facility integrates process improvements designed to control bioburden prior to
sterilization. The currently planned operational updates related to this as well as WWTP discharge
are:
• WFI 2.0 — A replacement system of our current water distribution system for
solutions mixing. This will be entering validation during summer of 2023, expected
to be significantly complete before end of 2023. During validation an increase of
approximately 40,000 gallons of heated water will be produced. After validation a
storage tank currently used as part of the active WFI system will be used as a
holding vessel for boiler re -use. This is a production side component that will be
part of the engineering assessment within the Corrective Action Plan. WFI 2.0 is a
key part of our new mixing system as well as providing significant control and
process improvements over current WFI water distribution.
• North Mixing — A new solutions mixing facility utilizing bulk container raw
material loading and closed system mixing, greatly reducing the potential for
contamination within solutions resulting in one-off discharged batches of solutions
to the WWTP.

10. Other Details Discussed DuringMeeting., Provide requested details not captured in above
items but mentioned in the meeting by DWR staff or AG office.
Response: To the best of Baxter staff recollection the above captures all relevant items
mentioned during the meeting.
Baxter
Sincerely,
Derek Bouchard
Environmental Manager

North Cove Water Balance
Average Production Days (2022)
Legend
Incoming/Raw Water All Temps presented in °F
Drains All Flows presented in 1000 gal/day
Well Water Temperatures recorded
WFI Production
---►587
Carbons
Dl Trains
Stills 326
Product
Backwash
Regeneration
Blowdown Sanitization & Misr Drains
29
26
13 153
1 �
Condensate Return
261
21
Steam Production
327
Boiler
Boilers
Steam HXs
BR Sump/
Pretreatment
BR Drains
Meco Stills as
47%
Avg Temp 110
HVAC 19
18%
Max Temp 168
Sanitizations s
6%
Min Tem 95
DW HX 19
19%
Carbons a
4%
Regeneration Blowdown Steam Condensate
16 17 101
1 1 1 1
) Evaporation
193 151
Sterilizer Charge Water y Cooling Pond Overflow to W WTP
=� 310 — Softeners Sterilizers Cooling Ponds 268
Avg Temp 78
Regeneration Sterilizer dischargeto 5A Sump Max Temp 93
16 68 Min Temp 50
SA Sump 68
Avg Temp 89
Evaporation Max Temp 116
75 Min Temp 60
Cooling Towers 16-1
—> 150 Cooling
Towers
Regeneration
75
1 75—
Sanitary 32 Sanitary
To drain
32
1
Production Waste and Stormwater Intrusion
------► 60 Prod. Waste/
Stormwater
To drain
60
1
North
Max Temp 162
Min Temn 61
914
1
To Waste Treatment Plant

Table 1 - Facilitv Process Flow and Heat Values
Source Flow (K eald Discharge (k Temp. (ave. F) Destination
WFI System
587
110 various subsystems and product
Carbon Filtration
587
29
65 Carbon filtration before rest of WFI system. Discharge is from backwash filter cleaning
------------------------------------------------------
Deionization Train
---------------
558
----------------
26
---------------------------------------------------------------- ----------------------------------------------------
65 Deionization of filtered water, discharge is regenerative process water
Distillation
532
53
212 Distillation of water prior to product use
Sanitization & Misc Drains
153
153
85 Water used for dry cleaning, dry filling, and other sterile water applications not in -product
Product
326
0
85 Water used in production
-----------------------------------------------------
Total Discharge
-------------------------
---------------
----------------
----------------
261
-----------
----------------- -------------------------------------------------------------------------------------------------------------------------------
110 Discharges through BR Sump along with Steam Production discharge, collective average of 110 F
---------------- ---------------------------------------
Steam Productio
327
65 Water for boiler operations
Boiler Pretreatment
327
16
65 Regenerative cycle on boiler pretreatment process
------------------------------------------------------
Boilers
----------------
311
----------------
17
------------------ -----------------------------------------------------------------------------------------------------
212 Boiler producing steam for sterilizer operations
Steam Heat Exchangers
101
101
NA Heat exchanger system, recirculates 21 kgal. Of heated water back into boiler system
Total Discharge
-----------------
--------
134
----------------------------- --------------------------------------------
110 Discharges through BR Sump along with WFI System dischage, collective average of 110 F
Transfer from Boiler to Sterilization
---------------------------
193
-----------------
----------------
185-212 Steam transferred from boiler system to sterilizers, is the differential between 327 kgal. In and 134 kgal. Discharge
------------------------------------------------------------------
Product Sterilization
310
Softeners
310
16
65 Softened well water to charge steam ovens for sterilization process
----------------------------
Sterilizers
----------------
487
----------------
68
------------------------------------------------------- ----------------------------------------------------------------------------------------
185 Softened charge water and 193 kgal./day of steam from boiler process
-----------------------
Cooling Ponds
---------------
419
----------------
268
---------------------- -----------------------------------------------------------------------
78 Sterilizer water discharges into cooling ponds
---------------------------
Cooling Pond Evaporation
----------------
151
----------------
---------------------------------------------- --------------------------------------------------------------------------------------------------
NA Evaporation of water in cooling ponds, assisted by mechanical spray system
Total Discharge
---------------------------
----------------
352
--------
Varies Total discharge is via 5A Sump and Cooling ponds, 89 F and 78 F average temps respectively
------------------------------------
Cooling Towers
Cooling tower feed water for cooling heated temp. water througout process
Evaporation
---------------------------
75
----------------
----------------
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Regeneration
------------------------
----------------
75
----------------
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sanitary
32
32
75 Water for sanitary facilities use by facility staff
Production Waste and SW Intrusion
60
60
75 Discard product solutions and discard solution mixes discharged to WWTP, system sterilization water, drain systems
Temperatures not listed on Figure 1- Simplified Water Balance are approximate values based on known process conditions, i.e. groundwater source is 65 F, distillation occurs at 212 F, steam sterilization target is
185, average santiary temp 75.

Table 2 - Fish Communitv Studv Temaerature Data
Date Time
North Cove School Midway
Pitts Station
Old Linville Lake James
Outfall
1/31/202311:00
8.48
8.98
22.68
1/31/202312:00
8.66
9.20
9.04
8.98
22.71
1/31/202313:00
8.89
9.42
9.36
9.23
22.81
1/31/202314:00
9.13
9.68
9.47
9.47
22.90
1/31/202315:00
9.43
9.93
9.86
9.75
22.96
1/31/202316:00
9.67
10.11
10.05
9.95
23.02
1/31/2023 17:00
9.84
10.20
10.18
10.10
23.05
1/31/2023 18:00
9.89
10.18
10.20
10.13
23.07
1/31/2023 19:00
9.88
10.14
10.18
10.14
23.03
1/31/2023 20:00
9.87
10.10
10.14
10.12
23.07
1/31/2023 21:00
9.83
10.07
10.14
10.10
23.07
1/31/2023 22:00
9.80
10.05
10.12
10.11
23.15
1/31/2023 23:00
9.78
10.02
10.10
10.10
23.15
2/1/2023 0:00
9.72
10.02
10.01
10.07
23.10
2/1/20231:00
9.68
9.98
10.07
10.07
23.11
2/1/2023 2:00
9.61
9.79
10.02
10.04
21.64
2/1/2023 3:00
9.55
9.69
9.84
10.03
23.20
2/1/2023 4:00
9.51
9.86
9.81
9.95
23.16
2/1/2023 5:00
9.45
9.62
9.90
9.92
23.11
2/1/2023 6:00
9.38
9.84
9.66
9.85
23.03
2/1/2023 7:00
9.29
9.72
9.78
9.68
23.12
2/1/2023 8:00
9.19
9.51
9.72
9.61
23.10
2/1/2023 9:00
9.18
9.53
9.51
9.54
23.01
2/1/202310:00
9.19
9.67
9.63
9.55
23.01
2/1/202311:00
9.35
9.81
9.75
9.79
23.00
2/1/202312:00
9.43
9.99
9.95
10.02
23.00
2/1/2023 13:00
9.64
10.27
10.14
10.41
22.95
2/1/2023 14:00
9.95
10.47
10.34
10.66
22.92
2/1/2023 15:00
10.10
10.50
10.52
10.66
22.86
2/1/2023 16:00
10.15
10.46
10.54
10.63
22.74
2/1/2023 17:00
10.14
10.43
10.47
10.52
22.66
2/1/2023 18:00
10.06
10.34
10.40
10.41
22.76
2/1/2023 19:00
9.95
10.36
10.30
10.28
22.02
2/1/2023 20:00
9.74
10.29
10.33
10.14
23.11
2/1/2023 21:00
9.56
10.04
10.30
10.00
22.92
2/1/2023 22:00
9.38
9.78
10.03
9.88
22.89
2/1/2023 23:00
9.20
9.59
9.78
9.77
22.77
2/2/2023 0:00
9.07
9.44
9.60
9.68
22.73
2/2/20231:00
8.95
9.32
9.43
9.59
22.70
2/2/2023 2:00
8.84
9.20
9.31
9.44
22.65
2/2/2023 3:00
8.69
9.08
9.19
9.29
22.60
2/2/2023 4:00
8.56
8.93
9.07
9.13
22.54
2/2/2023 5:00
8.47
8.80
8.90
8.96
22.52
2/2/2023 6:00
8.38
8.77
8.85
8.86
22.51

Table 2 - Fish Communitv Studv Temaerature Data
Date Time
North Cove School Midway
Pitts Station
Old Linville Lake James
Outfall
2/2/2023 7:00
8.29
8.65
8.79
8.77
22.50
2/2/2023 8:00
8.17
8.68
8.66
8.68
22.44
2/2/2023 9:00
8.15
8.66
8.67
8.55
22.40
2/2/202310:00
8.09
8.66
8.62
8.58
22.48
2/2/202311:00
8.21
9.00
8.71
8.65
22.51
2/2/202312:00
8.56
9.21
9.02
8.88
22.51
2/2/202313:00
8.82
9.28
9.21
8.99
22.48
2/2/202314:00
8.85
9.31
9.30
9.11
22.49
2/2/202315:00
8.95
9.33
9.32
9.19
22.36
2/2/202316:00
9.09
9.40
9.37
9.32
22.37
2/2/202317:00
9.12
9.36
9.35
9.27
22.31
2/2/202318:00
9.06
9.26
9.33
9.27
22.30
2/2/202319:00
8.95
9.18
9.26
9.19
22.32
2/2/2023 20:00
8.84
9.32
9.21
9.13
22.45
2/2/2023 21:00
8.79
9.14
9.31
9.06
22.43
2/2/2023 22:00
8.64
9.05
9.10
8.96
22.36
2/2/2023 23:00
8.51
8.95
9.07
8.82
22.22
2/3/2023 0:00
8.33
8.79
8.91
8.72
22.18
2/3/20231:00
8.18
8.64
8.69
8.60
22.10
2/3/2023 2:00
7.99
8.26
8.59
8.45
21.98
2/3/2023 3:00
7.73
8.07
8.22
8.29
21.92
2/3/2023 4:00
7.52
7.93
8.03
8.09
21.89
2/3/2023 5:00
7.28
7.67
7.88
7.87
21.80
2/3/2023 6:00
6.94
7.43
7.65
7.66
21.71
2/3/2023 7:00
6.62
7.09
7.35
7.40
21.58
2/3/2023 8:00
6.37
6.72
6.99
7.19
21.45
2/3/2023 9:00
6.15
6.50
6.67
7.02
21.41
2/3/202310:00
6.03
6.55
6.56
6.90
21.33
2/3/202311:00
6.03
6.74
6.66
6.99
21.35
2/3/202312:00
6.19
7.22
6.94
7.30
21.38
2/3/202313:00
6.59
7.45
7.41
7.68
21.40
2/3/202314:00
7.01
7.88
7.63
8.11
20.52
2/3/202315:00
7.42
8.09
7.97
8.44
21.38
2/3/202316:00
7.67
8.01
8.18
8.59
21.20
2/3/202317:00
7.69
7.90
8.03
8.48
21.14
2/3/202318:00
7.42
7.60
7.85
8.09
21.02
2/3/202319:00
7.07
7.05
7.51
7.72
20.87
2/3/2023 20:00
6.79
6.76
6.97
7.26
20.78
2/3/2023 21:00
6.52
6.60
6.73
6.80
20.77
2/3/2023 22:00
6.11
6.29
6.54
6.48
20.62
2/3/2023 23:00
5.74
5.96
6.21
6.11
20.61
2/4/2023 0:00
5.50
5.56
5.87
5.88
20.60
2/4/20231:00
5.22
5.33
5.55
5.56
20.41
2/4/2023 2:00
4.95
5.20
5.27
5.25
20.94

Table 2 - Fish Communitv Studv Temaerature Data
Date Time
North Cove School Midway
Pitts Station
Old Linville Lake James
Outfall
2/4/2023 3:00
4.68
5.04
5.15
5.03
20.91
2/4/2023 4:00
4.44
4.99
4.98
4.77
20.88
2/4/2023 5:00
4.26
4.83
4.99
4.51
20.81
2/4/2023 6:00
4.06
4.63
4.83
4.28
20.82
2/4/2023 7:00
3.86
4.39
4.63
4.15
20.74
2/4/2023 8:00
3.71
4.31
4.35
3.98
20.69
2/4/2023 9:00
3.59
4.18
4.29
3.88
20.70
2/4/202310:00
3.68
4.54
4.28
4.02
20.69
2/4/202311:00
3.88
4.94
4.61
4.34
20.73
2/4/202312:00
4.34
5.36
5.07
4.88
20.75
2/4/202313:00
4.84
5.95
5.52
5.41
20.88
2/4/202314:00
5.42
6.52
6.13
6.05
20.90
2/4/202315:00
6.00
6.88
6.65
6.62
20.90
2/4/202316:00
6.46
7.07
6.99
6.99
20.86
2/4/202317:00
6.72
7.09
7.06
7.10
20.86
2/4/202318:00
6.71
7.08
7.04
6.99
20.84
2/4/202319:00
6.60
6.93
7.03
6.75
20.76
2/4/2023 20:00
6.46
6.78
6.89
6.47
20.78
2/4/2023 21:00
6.29
6.30
6.73
6.26
19.77
2/4/2023 22:00
6.04
6.12
6.29
6.05
19.78
2/4/2023 23:00
5.79
5.81
6.09
5.89
19.85
2/5/2023 0:00
5.57
5.51
5.77
5.74
19.94
2/5/20231:00
5.30
5.28
5.51
5.55
19.95
2/5/2023 2:00
5.11
5.24
5.29
5.40
19.83
2/5/2023 3:00
4.93
5.04
5.22
5.22
19.83
2/5/2023 4:00
4.75
4.86
5.01
5.03
19.72
2/5/2023 5:00
4.60
4.90
4.87
4.89
19.78
2/5/2023 6:00
4.41
4.60
4.90
4.71
19.71
2/5/2023 7:00
4.26
4.42
4.62
4.52
19.77
2/5/2023 8:00
4.09
4.36
4.45
4.32
19.76
2/5/2023 9:00
4.03
4.35
4.43
4.26
19.97
2/5/202310:00
4.23
4.99
4.44
4.42
20.08
2/5/202311:00
4.65
5.41
5.16
4.89
20.47
2/5/202312:00
5.19
6.17
5.52
5.47
20.44
2/5/202313:00
5.72
6.49
6.28
5.94
20.28
2/5/202314:00
6.33
7.31
6.69
6.51
20.44
2/5/202315:00
7.07
8.03
7.44
7.16
21.34
2/5/202316:00
7.51
8.16
8.03
7.61
21.44
2/5/202317:00
7.79
8.34
8.19
7.83
21.64
2/5/202318:00
7.98
8.38
8.29
7.88
21.57
2/5/202319:00
7.86
8.18
8.29
7.81
21.51
2/5/2023 20:00
7.73
8.02
8.13
7.65
21.61
2/5/2023 21:00
7.49
7.72
7.97
7.45
21.65
2/5/2023 22:00
7.27
7.39
7.64
7.26
21.51

Table 2 - Fish Communitv Studv Temaerature Data
Date Time
North Cove School Midway
Pitts Station
Old Linville Lake James
Outfall
2/5/2023 23:00
6.97
7.20
7.31
7.10
21.75
2/6/2023 0:00
6.81
7.02
7.19
7.08
21.73
2/6/20231:00
6.56
6.81
6.96
6.92
21.80
2/6/2023 2:00
6.29
6.72
6.72
6.84
21.73
2/6/2023 3:00
6.19
6.64
6.74
6.75
21.62
2/6/2023 4:00
6.13
6.61
6.65
6.67
21.56
2/6/2023 5:00
6.10
6.49
6.58
6.54
21.70
2/6/2023 6:00
6.03
6.41
6.51
6.40
21.58
2/6/2023 7:00
5.88
6.06
6.38
6.28
21.03
2/6/2023 8:00
5.86
6.06
6.09
6.18
21.02
2/6/2023 9:00
5.81
6.19
6.07
6.15
21.03
2/6/202310:00
5.96
6.50
6.33
6.33
21.02
2/6/202311:00
6.28
6.95
6.62
6.75
20.51
2/6/202312:00
6.79
7.65
7.13
7.38
21.30
2/6/202313:00
7.43
8.42
7.90
8.04
21.37
2/6/202314:00
8.08
9.02
8.66
8.75
21.50
2/6/202315:00
8.72
9.52
9.23
9.38
21.56
2/6/202316:00
9.23
9.64
9.61
9.79
21.29
2/6/202317:00
9.47
9.65
9.67
9.94
21.29
2/6/202318:00
9.44
9.46
9.65
9.81
21.20
2/6/202319:00
9.22
9.22
9.47
9.53
21.24
2/6/2023 20:00
9.00
8.92
9.22
9.19
21.25
2/6/2023 21:00
8.72
8.64
8.93
8.77
21.15
2/6/2023 22:00
8.39
8.29
8.64
8.40
21.27
2/6/2023 23:00
8.00
8.16
8.28
8.08
21.68
2/7/2023 0:00
7.60
7.79
8.12
7.80
21.60
2/7/20231:00
7.23
7.45
7.72
7.48
21.55
2/7/2023 2:00
6.85
7.15
7.42
7.23
21.49
2/7/2023 3:00
6.52
6.85
7.12
6.95
21.40
2/7/2023 4:00
6.24
6.63
6.87
6.71
21.24
2/7/2023 5:00
5.91
6.32
6.62
6.50
21.19
2/7/2023 6:00
5.66
6.06
6.32
6.26
21.16
2/7/2023 7:00
5.42
5.84
6.03
6.03
21.02
2/7/2023 8:00
5.24
5.69
5.87
5.81
21.06
2/7/2023 9:00
5.17
5.79
5.72
5.71
21.16
2/7/202310:00
5.32
6.12
5.94
5.80
21.37
2/7/202311:00
5.70
6.75
6.26
6.24
21.59
2/7/202312:00
6.28
7.52
6.92
6.94
21.85
2/7/202313:00
7.03
8.28
7.73
7.68
21.97
2/7/202314:00
7.73
9.01
8.53
8.40
22.17
2/7/202315:00
8.45
9.45
9.18
9.05
22.30
2/7/202316:00
8.89
9.71
9.48
9.45
22.48
2/7/202317:00
9.30
9.82
9.71
9.65
22.46
2/7/202318:00
9.41
9.75
9.75
9.71
22.35

Table 2 - Fish Communitv Studv Temaerature Data
Date Time
North Cove School Midway
Pitts Station
Old Linville Lake James
Outfall
2/7/202319:00
9.36
9.67
9.72
9.52
22.35
2/7/2023 20:00
9.27
9.33
9.59
9.35
21.56
2/7/2023 21:00
9.07
9.06
9.21
9.04
21.55
2/7/2023 22:00
8.84
8.82
9.00
8.81
21.60
2/7/2023 23:00
8.51
8.56
8.73
8.53
21.72
2/8/2023 0:00
8.21
8.23
8.46
8.29
21.75
2/8/20231:00
7.84
8.00
8.19
8.05
21.78
2/8/2023 2:00
7.54
7.56
7.91
7.77
21.74
2/8/2023 3:00
7.27
7.40
7.55
7.55
22.07
2/8/2023 4:00
7.02
7.27
7.32
7.37
21.85
2/8/2023 5:00
6.76
6.85
7.23
7.19
18.80
2/8/2023 6:00
6.57
6.86
6.82
7.02
22.00
2/8/2023 7:00
6.41
6.73
6.81
6.84
22.06
2/8/2023 8:00
6.33
6.70
6.69
6.73
22.04
2/8/2023 9:00
6.33
6.79
6.70
6.72
22.05
2/8/202310:00
6.47
7.03
6.83
6.85
22.17
2/8/202311:00
6.70
7.46
7.07
7.06
22.18
2/8/202312:00
7.07
7.99
7.47
7.45
22.02
2/8/202313:00
7.46
8.31
8.04
7.79
22.18
2/8/202314:00
7.81
8.64
8.35
8.13
22.30
2/8/202315:00
8.21
8.92
8.71
8.41
22.35
2/8/202316:00
8.47
9.13
8.95
8.70
22.41
2/8/202317:00
8.72
9.11
9.16
8.92
22.03
2/8/202318:00
8.88
9.25
9.11
9.07
22.08
2/8/202319:00
8.97
9.35
9.21
9.17
22.20
2/8/2023 20:00
9.05
9.42
9.30
9.22
22.27
2/8/2023 21:00
9.10
9.48
9.40
9.30
22.28
2/8/2023 22:00
9.14
9.44
9.46
9.28
22.33
2/8/2023 23:00
9.12
9.47
9.46
9.24
22.39
2/9/2023 0:00
9.05
9.45
9.46
9.22
22.38
2/9/20231:00
8.98
9.65
9.44
9.24
22.99
2/9/2023 2:00
8.92
9.62
9.59
9.24
23.03
2/9/2023 3:00
8.92
9.54
9.59
9.25
23.05
2/9/2023 4:00
8.83
9.44
9.51
9.16
23.04
2/9/2023 5:00
8.71
9.38
9.41
9.10
23.08
2/9/2023 6:00
8.63
9.34
9.35
9.11
23.08
2/9/2023 7:00
8.55
9.24
9.28
9.05
23.12
2/9/2023 8:00
8.50
9.21
9.21
9.02
23.09
2/9/2023 9:00
8.52
9.37
9.16
8.99
23.11
2/9/202310:00
8.59
9.68
9.37
9.12
23.16
2/9/202311:00
8.90
9.98
9.76
9.49
23.27
2/9/202312:00
9.27
10.57
10.04
9.96
23.40
2/9/2023 13:00
9.82
10.65
10.65
10.32
22.89
2/9/2023 14:00
10.15
11.02
10.73
10.53
22.97

Table 2 - Fish Communitv Studv Temaerature Data
Date Time
North Cove School Midway
Pitts Station
Old Linville Lake James
Outfall
2/9/2023 15:00
10.62
11.43
11.12
10.86
23.00
2/9/2023 16:00
11.12
11.81
11.51
11.12
23.01
2/9/2023 17:00
11.38
11.90
11.83
11.40
23.07
2/9/2023 18:00
11.45
11.70
11.91
11.49
23.08
2/9/2023 19:00
11.41
11.65
11.70
11.46
23.37
2/9/2023 20:00
11.38
11.57
11.64
11.44
23.59
2/9/2023 21:00
11.28
11.46
11.55
11.43
23.61
2/9/2023 22:00
11.07
11.21
11.40
11.33
23.63
2/9/2023 23:00
10.81
11.02
11.21
11.17
23.61
2/10/2023 0:00
10.51
10.76
10.97
10.95
23.26
2/10/2023 1:00
10.24
10.51
10.71
10.77
23.57
2/10/2023 2:00
9.98
10.11
10.46
10.59
23.49
2/10/2023 3:00
9.74
10.09
10.20
10.43
21.27
2/10/2023 4:00
9.63
10.15
10.10
10.29
23.25
2/10/2023 5:00
9.47
10.24
10.11
10.11
23.25
2/10/2023 6:00
9.24
9.94
10.19
9.89
23.28
2/10/2023 7:00
9.01
9.70
9.89
9.66
23.17
2/10/2023 8:00
8.83
9.50
9.65
9.49
23.18
2/10/2023 9:00
8.69
9.55
9.53
9.36
23.14
2/10/202310:00
8.78
9.74
9.64
9.43
23.01
2/10/202311:00
9.00
9.96
9.97
9.84
23.13
2/10/2023 12:00
9.45
10.61
10.24
10.45
23.13
2/10/2023 13:00
10.08
11.27
10.87
11.17
23.18
2/10/2023 14:00
10.67
11.69
11.56
11.78
23.24
2/10/2023 15:00
10.98
11.95
11.84
12.16
23.22
2/10/2023 16:00
11.33
11.90
12.01
12.43
23.10
2/10/2023 17:00
11.50
11.80
11.89
12.41
23.08
2/10/2023 18:00
11.42
11.65
11.85
12.21
22.98
2/10/2023 19:00
11.25
11.64
11.64
11.90
22.95
2/10/2023 20:00
11.03
11.49
11.55
11.63
23.21
2/10/2023 21:00
10.80
11.28
11.46
11.32
23.26
2/10/2023 22:00
10.63
11.10
11.31
11.08
23.23
2/10/2023 23:00
10.40
10.84
11.06
10.85
23.19
2/11/2023 0:00
10.19
10.68
10.84
10.60
23.15
2/11/2023 1:00
9.99
10.35
10.68
10.43
23.07
2/11/2023 2:00
9.76
10.03
10.36
10.29
22.79
2/11/2023 3:00
9.57
9.90
10.04
10.13
22.81
2/11/2023 4:00
9.35
9.75
9.93
9.97
22.81
2/11/2023 5:00
9.17
9.60
9.75
9.81
22.83
2/11/2023 6:00
9.00
9.37
9.58
9.66
22.82
2/11/2023 7:00
8.79
9.14
9.37
9.48
22.80
2/11/2023 8:00
8.50
9.03
9.15
9.24
22.78
2/11/2023 9:00
8.37
9.04
9.04
9.13
22.75
2/11/202310:00
8.45
9.20
9.08
9.18
22.76

Table 2 - Fish Communitv Studv Temaerature Data
Date Time
North Cove School Midway
Pitts Station
Old Linville Lake James
Outfall
2/11/202311:00
8.71
9.61
9.29
9.46
22.84
2/11/202312:00
8.96
9.76
9.65
9.73
22.80
2/11/202313:00
9.14
10.08
9.76
9.82
22.83
2/11/2023 14:00
9.58
10.10
10.22
10.17
22.82
2/11/2023 15:00
9.66
10.08
10.11
10.17
22.78
2/11/2023 16:00
9.63
10.09
10.07
10.22
22.75
2/11/202317:00
9.65
9.94
10.09
10.17
22.78
2/11/202318:00
9.57
10.00
9.95
10.07
22.76
2/11/202319:00
9.47
9.83
10.02
9.98
23.12
2/11/2023 20:00
9.38
9.76
9.84
9.82
23.21
2/11/2023 21:00
9.22
9.51
9.73
9.66
23.21
2/11/2023 22:00
8.98
9.29
9.44
9.44
21.16
2/11/2023 23:00
8.79
9.08
9.22
9.21
22.30
2/12/2023 0:00
8.21
8.67
8.96
8.71
22.20
2/12/20231:00
7.92
8.15
8.60
8.44
22.21
2/12/2023 2:00
7.83
7.97
8.19
8.29
22.17
2/12/2023 3:00
7.71
7.86
7.97
8.08
22.18
2/12/2023 4:00
7.60
7.82
7.84
7.97
22.09
2/12/2023 5:00
7.40
7.64
7.74
7.86
22.15
2/12/2023 6:00
7.28
7.56
7.60
7.58
22.09
2/12/2023 7:00
7.16
7.66
7.47
7.43
22.14
2/12/2023 8:00
7.16
7.59
7.53
7.32
22.08
2/12/2023 9:00
7.09
7.44
7.45
7.25
21.95
2/12/202310:00
7.12
7.39
7.42
7.22
21.85
2/12/202311:00
7.26
7.51
7.43
7.30
21.89
2/12/202312:00
7.46
7.72
7.51
7.44
21.87
2/12/202313:00
7.66
8.02
7.74
7.59
22.03
2/12/202314:00
7.82
8.17
7.97
7.65
22.07
2/12/202315:00
8.01
8.28
8.16
7.87
22.06
2/12/202316:00
8.20
8.34
8.30
8.09
21.93
2/12/202317:00
8.26
8.43
8.34
8.22
21.94
2/12/202318:00
8.25
8.42
8.35
8.22
21.84
2/12/202319:00
8.15
8.28
8.32
8.18
21.83
2/12/2023 20:00
8.01
8.11
8.22
8.05
21.77
2/12/2023 21:00
7.87
7.76
8.12
7.88
18.26
2/12/2023 22:00
7.67
7.47
7.75
7.73
22.35
2/12/2023 23:00
7.44
7.28
7.46
7.47
22.00
2/13/2023 0:00
7.18
7.09
7.23
7.25
21.96
2/13/20231:00
6.92
6.86
7.08
7.01
22.44
2/13/2023 2:00
6.72
6.63
6.84
6.84
22.36
2/13/2023 3:00
6.56
6.49
6.61
6.68
22.26
2/13/2023 4:00
6.37
6.29
6.45
6.48
22.13
2/13/2023 5:00
6.27
6.25
6.33
6.31
22.06
2/13/2023 6:00
6.18
6.17
6.23
6.17
22.02

Table 2 - Fish Communitv Studv Temaerature Data
Date Time
North Cove School Midway
Pitts Station
Old Linville Lake James
Outfall
2/13/2023 7:00
6.11
6.17
6.15
6.00
21.92
2/13/2023 8:00
6.01
6.14
6.07
5.93
21.86
2/13/2023 9:00
6.04
6.28
6.09
5.95
21.87
2/13/202310:00
6.18
6.52
6.23
6.10
21.80
2/13/202311:00
6.45
6.63
6.47
6.35
21.77
2/13/202312:00
6.69
6.86
6.65
6.65
21.67
2/13/202313:00
7.09
7.66
6.96
7.20
21.73
2/13/202314:00
7.79
8.49
7.82
7.99
21.78
2/13/202315:00
8.52
9.05
8.64
8.69
21.88
2/13/202316:00
9.04
9.37
9.17
9.12
21.72
2/13/202317:00
9.30
9.34
9.32
9.26
21.12
2/13/202318:00
9.33
9.37
9.30
9.23
21.06
2/13/202319:00
9.22
9.13
9.27
9.08
20.98
2/13/2023 20:00
8.95
8.84
9.06
8.77
20.95
2/13/2023 21:00
8.57
8.52
8.77
8.60
20.94
2/13/2023 22:00
8.23
8.18
8.45
8.35
20.92
2/13/2023 23:00
7.90
7.86
8.09
8.07
20.90
2/14/2023 0:00
7.60
7.60
7.81
7.80
20.87
2/14/20231:00
7.32
7.44
7.58
7.59
20.85
2/14/2023 2:00
7.12
7.27
7.34
7.31
20.72
2/14/2023 3:00
6.94
7.20
7.20
7.12
21.55
2/14/2023 4:00
6.79
7.12
7.12
6.90
21.57
2/14/2023 5:00
6.65
7.00
7.07
6.65
21.51
2/14/2023 6:00
6.54
6.83
6.90
6.50
21.40
2/14/2023 7:00
6.42
6.69
6.76
6.41
21.33
2/14/2023 8:00
6.29
6.49
6.60
6.28
21.31
2/14/2023 9:00
6.22
6.59
6.46
6.23
21.49
2/14/202310:00
6.36
7.01
6.63
6.44
21.47
2/14/202311:00
7.072037
6.923508
21.71039
2/14/2023 12:00
7.634399
18.1282
2/14/2023 13:00
8.542587
22.0107
2/14/2023 14:00
21.34563