NC0023884_Responce to CEI comments_20200928

Strickland, Bev
From: Robert Loper <[e-mail]>
Sent: Monday, September 28, 2020 9:22 AM
To: Scheller, Roberto
Subject: [External] CEI-response
Attachments: pH Calibration.docx; YSI Pro 20i D.O Meter Calibration.docx;
TC.DOmeter.11.2017.docx; TC.PH.Cali.07.2019.docx
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Mr. Scheller,
I wanted to relay that in response to the meter calibration logs, I went back through till July 2019 for Grants Creek the
only logs that were missing information was December 2019 and January 2020. Those 2 months they used an old form
from a retired folder. I have since updated the log sheet please see attached. I also checked all of Town Creeks meter
calibration forms the only discrepancy was September 2020. Those logs have also been updated. (see attached).
I will assure you this will not occur again.
Thank you,
Robert (Bob) Loper
WWTP Operations/Bio-Solids
Superviosr-ORC
1915 Grubb Ferry Rd, Salisbury
North Carolina, 28144
PH: [phone]
Cell: [phone]
1

Grant Creek pH Calibration Log Month: Year:
Model- Hach HQ 11d S/N #190700022173
Buffer
Manufacturer
Lot #
Expiration
4
BHP
7
BHP
10
BHP
Date Time 4 Buffer 7 Buffer 10 Buffer 7 Check Temp. Slope Oper.
Notes:

Grant Creek D.O. Meter Calibration. Model YSI Pro 20i
Serial #16M101879 Month:
Year:
Date
Time
Temp.
Initial
Reading
5 Minute
Reading
Analyst
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Notes:

Town Creek YSI Pro 20i DO Meter Calibration
Month: Year:
-+uriu77ES S/N : #16M101881
Date
Time
Temp.
Initial Reading
5 Minute Reading
Analyst
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Notes:

Salisbury-Rlwan
Town Creek pH Calibration Log
Month:
Year:
PH Meter Model H10P S/N: #13190S0037
Buffer
Manufacturer
Lot #
Expiration
4
BHP
7
BHP
10
BHP
Date Time 4 Buffer 7 Buffer 10 Buffer 7 Check Temp. Slope Oper.
Notes: