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
  • 20,542 posts
  • 5662 thanks
1,544
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
  • 4,632 posts
  • 1135 thanks
1,126
Excellent

  • United States
    United States
  • Gender:Male
  • Interests:Just when I thought I was out - They pulled me back in!!!

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.


All the Best,

 

All Rights Reserved,

Without Prejudice,

Glenn Oster.

Glenn Oster Consulting, LLC -

SQF System Development | Internal Auditor Training | eConsultant

Martha's Vineyard Island, MA - Restored Republic

http://www.GCEMVI.XYZ

http://www.GlennOster.com

 


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
  • 4,632 posts
  • 1135 thanks
1,126
Excellent

  • United States
    United States
  • Gender:Male
  • Interests:Just when I thought I was out - They pulled me back in!!!

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.


All the Best,

 

All Rights Reserved,

Without Prejudice,

Glenn Oster.

Glenn Oster Consulting, LLC -

SQF System Development | Internal Auditor Training | eConsultant

Martha's Vineyard Island, MA - Restored Republic

http://www.GCEMVI.XYZ

http://www.GlennOster.com

 


Thanked by 1 Member:

Charles.C

    Grade - FIFSQN

  • IFSQN Moderator
  • 20,542 posts
  • 5662 thanks
1,544
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
  • 4,632 posts
  • 1135 thanks
1,126
Excellent

  • United States
    United States
  • Gender:Male
  • Interests:Just when I thought I was out - They pulled me back in!!!

Posted 14 February 2019 - 09:13 PM

Excuse me Charles - undetectable might be a better term.


All the Best,

 

All Rights Reserved,

Without Prejudice,

Glenn Oster.

Glenn Oster Consulting, LLC -

SQF System Development | Internal Auditor Training | eConsultant

Martha's Vineyard Island, MA - Restored Republic

http://www.GCEMVI.XYZ

http://www.GlennOster.com

 


Charles.C

    Grade - FIFSQN

  • IFSQN Moderator
  • 20,542 posts
  • 5662 thanks
1,544
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
  • 101 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
  • 20,542 posts
  • 5662 thanks
1,544
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