164. The maintenance program must include(1) the maintenance plan of the manufacturer for the commercial storm water treatment technology installed;
(2) the indicator used to establish the maintenance threshold, the value of the maintenance threshold and the indication that maintenance is required where the accumulated sediments exceed the value of the maintenance threshold; and
(3) an estimate of the expected number of years of operation without maintenance;
(4) the details of the hypotheses and the calculation for establishing the estimate referred to in paragraph 3.