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What is up-set, interference and pass-through?

April 26, 2017interference pass-through up-set

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What is up-set, interference and pass-through?

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There are four situations that may require the POTW to initiate a pretreatment program regardless of plant flow rate. In addition to plant up-set, interference, and pass-through, the production of a poor quality biosolids that cannot meet beneficial reuse criteria, may each, individually require the POTW to take action to protect the utility from the sewer system users.