Jump to content

  • Quick Navigation
Photo

Drain Testing SOP

Share this

  • You cannot start a new topic
  • Please log in to reply
10 replies to this topic

hgardner22

    Grade - Active

  • IFSQN Active
  • 3 posts
  • 0 thanks
0
Neutral

  • United States
    United States

Posted 14 February 2019 - 03:57 PM

Hello,

 

I have been tasked with creating a Drain Testing SOP for my site. Background: we are a dietary supplement distributor (do finished product packing), there are two drains that are not critical (one in a supply closet the other outside an office door that leads to the warehouse). I have the cleaning procedure semi-completed (add 1/4 c of bleach + 12 1/4 c of water to pout down each drain). What I need help with is testing parameters that should be met is I focus on listeria, e.coli and salmonella. Frequency of testing I'm pushing for is 2x year.  

 

Any help would be most appreciated!



hgardner22

    Grade - Active

  • IFSQN Active
  • 3 posts
  • 0 thanks
0
Neutral

  • United States
    United States

Posted 14 February 2019 - 04:00 PM

Also we do not have a micro lab onsite, so any testing would have to go to a 3rd party.



Charles.C

    Grade - FIFSQN

  • IFSQN Moderator
  • 20,104 posts
  • 5538 thanks
1,458
Excellent

  • Earth
    Earth
  • Gender:Male
  • Interests:SF
    TV
    Movies

Posted 14 February 2019 - 05:24 PM

Hello,

 

I have been tasked with creating a Drain Testing SOP for my site. Background: we are a dietary supplement distributor (do finished product packing), there are two drains that are not critical (one in a supply closet the other outside an office door that leads to the warehouse). I have the cleaning procedure semi-completed (add 1/4 c of bleach + 12 1/4 c of water to pout down each drain). What I need help with is testing parameters that should be met is I focus on listeria, e.coli and salmonella. Frequency of testing I'm pushing for is 2x year.  

 

Any help would be most appreciated!

 

The logical target for all 3 would be undetectable.

The frequency should initially be elevated.


Kind Regards,

 

Charles.C


Thanked by 1 Member:

SQFconsultant

    SQFconsultant

  • IFSQN Fellow
  • 4,188 posts
  • 1047 thanks
968
Excellent

  • United States
    United States
  • Gender:Male
  • Interests:American Patriot
    WWG1WGA
    Never give up, never give in - always win!
    Banking off of the northwest wind; Sailing on summer breeze! I am home now on Martha's Vineyard Island

Posted 14 February 2019 - 06:07 PM

The parameter would be zero.

I would suggest going with a monthly or every other month plan of testing on thr front end and then as you do not have hits cutting back. Your proposed lag time between testing is excessive.


Kind regards,
Glenn Oster

GOC GROUP | SQF Consultant & EES/MedBed Operator - 772.646.4115

https://t.me/MVIdigitalwarrior

Thanked by 1 Member:

hgardner22

    Grade - Active

  • IFSQN Active
  • 3 posts
  • 0 thanks
0
Neutral

  • United States
    United States

Posted 14 February 2019 - 06:26 PM

Do you have any recommendations for testing applications. I understand that there are test kits you can purchase, use (swab) and send out for testing.



SQFconsultant

    SQFconsultant

  • IFSQN Fellow
  • 4,188 posts
  • 1047 thanks
968
Excellent

  • United States
    United States
  • Gender:Male
  • Interests:American Patriot
    WWG1WGA
    Never give up, never give in - always win!
    Banking off of the northwest wind; Sailing on summer breeze! I am home now on Martha's Vineyard Island

Posted 14 February 2019 - 06:29 PM

Contact a lab that you would like to use. They will provide you with the test kits and then you submit the testers back to them for,analysis.


Kind regards,
Glenn Oster

GOC GROUP | SQF Consultant & EES/MedBed Operator - 772.646.4115

https://t.me/MVIdigitalwarrior

Thanked by 1 Member:

Charles.C

    Grade - FIFSQN

  • IFSQN Moderator
  • 20,104 posts
  • 5538 thanks
1,458
Excellent

  • Earth
    Earth
  • Gender:Male
  • Interests:SF
    TV
    Movies

Posted 14 February 2019 - 08:43 PM

The parameter would be zero.

I would suggest going with a monthly or every other month plan of testing on thr front end and then as you do not have hits cutting back. Your proposed lag time between testing is excessive.

 

Microbiological Criteria abhor "zero".

 

@ hgardner - Depending on the specific Procedure, the project (assuming null results) may ultimately prove nothing due sampling/analytical limitations.


Kind Regards,

 

Charles.C


SQFconsultant

    SQFconsultant

  • IFSQN Fellow
  • 4,188 posts
  • 1047 thanks
968
Excellent

  • United States
    United States
  • Gender:Male
  • Interests:American Patriot
    WWG1WGA
    Never give up, never give in - always win!
    Banking off of the northwest wind; Sailing on summer breeze! I am home now on Martha's Vineyard Island

Posted 14 February 2019 - 09:13 PM

Excuse me Charles - undetectable might be a better term.


Kind regards,
Glenn Oster

GOC GROUP | SQF Consultant & EES/MedBed Operator - 772.646.4115

https://t.me/MVIdigitalwarrior

Charles.C

    Grade - FIFSQN

  • IFSQN Moderator
  • 20,104 posts
  • 5538 thanks
1,458
Excellent

  • Earth
    Earth
  • Gender:Male
  • Interests:SF
    TV
    Movies

Posted 14 February 2019 - 10:05 PM

Excuse me Charles - undetectable might be a better term.

 

In practice, the usual is "not detected" in XYZ. (strictly the methodology, hopefully "Standard",  should be included).

 

Sampling/Analytical always rules.


Kind Regards,

 

Charles.C


Hank Major

    Grade - SIFSQN

  • IFSQN Senior
  • 317 posts
  • 100 thanks
33
Excellent

  • United States
    United States

Posted 15 February 2019 - 08:49 PM

I would ask the laboratory you are using to send you their directions for sampling drain water, and then use them to create your SOP.



Charles.C

    Grade - FIFSQN

  • IFSQN Moderator
  • 20,104 posts
  • 5538 thanks
1,458
Excellent

  • Earth
    Earth
  • Gender:Male
  • Interests:SF
    TV
    Movies

Posted 15 February 2019 - 11:16 PM

I would ask the laboratory you are using to send you their directions for sampling drain water, and then use them to create your SOP.

 

Good idea.

 

One should also ask to include an estimation of the detection sensitivity of the recommended method.

 

The perpetual problem with swabbing/analysing  plant objects for pathogens is that they are likely to be "missed". This is the reason for using "indicators" but unfortunately the latter cannot be used as confirmation.

 

It's a dilemma.


Kind Regards,

 

Charles.C




Share this


Also tagged with one or more of these keywords: drain cleaning, drain testing, listeria

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users