Field Performance Verification

NSF/ANSI 360 establishes consistent site selection, sampling, laboratory analysis and data evaluation methods for obtaining field performance results for onsite wastewater treatment systems.

The standard evaluates system selection, screening, minimum number of locations, sample frequency and duration, and defines quality requirements.

NSF/ANSI 360 applies only to wastewater treatment systems with rated capacities between 400 and 1,500 gallons per day, which have already been certified to NSF/ANSI 40 (CBOD5 and TSS reduction) or NSF/ANSI 245 (nitrogen reduction).

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