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What monitoring requirements for nutrients (nitrogen and phosphorus) are necessary in permits?

April 26, 2017monitoring necessary nitrogen nutrients permits Phosphorus requirements

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What monitoring requirements for nutrients (nitrogen and phosphorus) are necessary in permits?

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This question is not entirely specific to nutrients, and therefore, is answered the same as for any other water quality criteria. In general, monitoring requirements in permits must effectively ascertain compliance with effluent limits. Please refer to 40 CFR 122.44(i) and Chapter 8 of the NPDES Permit Writers’ Manual [PDF – 132 KB – 29 pp] for more information.