| (a) For outdoor uses.
(1) For users with less than five years of water use
data, the beneficial reuse credit is calculated as 80% of the lowest
total monthly volume of water used.
(2) For users with five or more years of water use
data, the beneficial reuse credit is calculated as 80% of the average
of the three lowest total monthly volumes of water use data submitted
for the five years prior to the date the application is submitted.
All users must have at least five consecutive years of data when taking
the average of the lowest three months.
(b) For indoor uses.
(1) For users with less than five years of water use
data, the beneficial reuse credit is calculated as 100% of the lowest
total monthly volume of water used.
(2) For users with five or more years of water use
data, the beneficial reuse credit is calculated as 100% of the average
of the lowest three total monthly volumes of water use data submitted
for the five years prior to the date the application is submitted.
All users must have at least five consecutive years of data when taking
the average of the lowest three months.
(c) When calculating the hydraulic application rate
as described in §309.20(b)(3)(A) of this title (relating to Land
Application of Sewage Effluent) or §222.83 of this title (relating
to Hydraulic Application Rate) for subsurface area drip dispersal
systems, the permitted flow may be reduced by the beneficial reuse
credit.
(d) The size of the land application site area may
not be reduced by more than 50% of the size required when calculating
the hydraulic application rate using the permitted flow without the
beneficial reuse credit.
(e) When calculating the required effluent storage
as described in §309.20(b)(3)(B) of this title or §222.127
of this title (relating to Storage), the permitted flow may not be
reduced by the beneficial reuse credit.
(f) For the purpose of recalculating the beneficial
reuse credit and for renewing a permit, the executive director may
accept water use data from users with less than two years of data
on a case-by-case basis.
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