When soliciting sample data for consideration of listing secondary treatment units for General Approval under TL-2 or TL-2 standards please define the location of sampling, and the statistical requirements for acceptance of this application. Current sample handling allows some manufacturers to sample lysimeters (which filter solids) beneath the trench bottom, while others grab sample from a d-box  or effluent port. Allow a level playing field and let the OSE/PE and consumer consider the data.

Define a protocol which all manufacturers may meet; e.g: Sample volume and handling must be by auto sample interval of 5ml/hour over course of 24 hour test period of 10 systems installed within the Commonwealth of Virginia.  Provide for sample  preservation and testing under BOD & TSS standard methods. Statistical reporting must include: sample size, distribution, mean values.

It should be more important to define what these effluent qualities are, and since it is unlikely that there shall be third party review let us at least define the means to compare.