NC0081621_Email_20191007

Scheller, Roberto
From: Atkinson, Cayce <[e-mail]>
Sent: Monday, October 7, 2019 3:18 PM
To: Scheller, Roberto
Cc: Holt, Kim
Subject: FW: [External] 2 Day/Week Sampling
Attachments: Qualifier MC Eff BOD 090319 KH.docx; Qualifier MC Eff BOD 070119 KH.docx
Hi Roberto -
Please see the attached qualifiers for the Muddy Creek Effluent BOD samples collected 7/1/19 and 9/3/19. The two
results, >19.9 mg/L and >22 mg/L, are considered valid. Neither of the samples left 1.0 mg/L DO for the final reading for
any dilutions. The results must be reported as "greater than" values.
Thanks,
Cayce
Cayce Atkinson
Lab Supervisor
Water and Sewer Authority of Cabarras County
6400 Breezy Ln
Concord, NC 28020
704,788.4164 x 116
From: Holt, Kimg- _ J
Sent: Monday, October 07, 2019 12:30 PM
To: Atkinson, Cayce <[e-mail]>
Subject: FW: [External] 2 Day/Week Sampling
From: Scheller, Roberto [mailto:roberto.scheller ncdenr, ov]
Sent: Friday, October 04, 2019 5:32 PM
To: Holt, Kim
Cc: Basinger, Corey; Pitner, Andrew
Subject: RE: [External] 2 Day/Week Sampling
Ms. Holt
Review of the data sets for the past 6 months was conducted and the following questions in BOD reporting was
noted. Samples reported on July 1, 2019 as >19.9 and September 3, 2019 reported as >22.0.

It is required that the laboratory supervisor send this Office a statement indicating whether the above noted data is
considered "valid", "questionable", or "invalid". And if this decision is based upon QC failure and the severity of the QC
failure. Accompanying documentation may be attached to justify any data believed to be invalid.
If you should have any questions in regards to this matter please contact me.
Roberto L. Scheller
NC Dept. of Environmental Quality
Division of Water Resources
Water Quality Regional Operations Section
610 E. Center Ave., Sute 301
Mooresville, NC 28115
Ph:704-235-2204 Fax:[phone]
From: Holt, Kim [mailto:Kim Holt WSACC.org]
Sent: Thprsday, October 3, 2019 1:13 PM
To: Scheller, Roberto <roberto.schelier ncdenr. ov>
Subject: [External] 2 Day/Week Sampling
Hi Roberto. I am happy to inform you that MCWWTP has completed 6 consecutive months of compliance sampling after
the new permit became effective. As you are aware, during the first 6 months of the new permit with the .3MGD
flow, MCWWTP had to perform 3/week sampling. Now that the 6 months is complete we are requesting permission to
return to the 2/week sampling schedule. This week we have already collected 2 days worth of composite sampling. We
would like to count those 2 as completed for this week if possible. We would return next week to collecting 2
composites per week with a day in between. We would also request a return to 2/week grab samples for Fecal
Coliform. If not, we will finish out this week sampling over 3 days and return to 2day/week next week. Thank you for
your consideration of this request. I look forward to hearing from you. Have a great day.
Kim Holt
Pretreatment Sample Tech./
MCWWTP ORC
6400 Breezy Lane
Concord, NC 28025
[phone] RRRWWTP
[phone] MCWWTP
[phone] Cell
mailto:kimholt wsacc.or