WEF Discussions — Now on LinkedIn!

WEF is pleased to announce the creation of free LinkedIn groups associated with its technical discussion forum topics. Through these LinkedIn groups, members will be able to view and participate in discussions, as well as communicate with one another via direct messages. Share your experiences and knowledge, ask questions and respond to other discussions as frequently as you like!

You must have a LinkedIn profile to join a LinkedIn group; you can create your profile here. If you already have a LinkedIn profile, all you need to do is submit a request to join one or all of the following groups:

Water Environment Federation (Main) | Biosolids | Collection Systems | Nutrients | Stormwater 
Utility Management | Water Reuse | Water for Jobs | Watershed Management | Laboratory Practices 

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flow meter calibration - Requires reporting to the regulators?
Posted: Wednesday, October 17, 2012 5:35 PM
Joined: 4/2/2012
Posts: 4

Our NPDES permit requires that we continuously monitor the flow rate of our treatment plant's influent and effluent wastestreams.   The NPDES standard conditions states that we need to calibrate our meters every six months or more often if required by the manufacturer.  Do anyone of you have similar provisions in your permits and if so, how do you folks address them. I've heard some facilities have redundant flow meters so technically they are always monitoring the folow. If you don't have redundant meters, do you notify your regulatory agencies when the meters are taking offline to conduct the calibration?  how is the situation handled?