| (a) Water treatment residuals that are land applied
shall be monitored for the metals listed in Table 1 of §312.43(b)(1)
of this title (relating to Metal Limits) at the frequency specified
in Table 10 of this subsection.
Attached Graphic
(b) After the water treatment residuals have been monitored
for two years at the frequency shown in Table 10 of subsection (a)
of this section, the executive director may reduce the monitoring
frequency, but in no case shall the monitoring frequency be less than
once per year when water treatment residuals are land applied. A request
to reduce monitoring frequency must be submitted to the executive
director with the sample results from the previous two years.
(c) After the water treatment residuals have been monitored
for two years at the frequency shown in Table 10 of subsection (a)
of this section, the executive director may increase the monitoring
frequency. An increase in monitoring frequency will be required where
high metal concentrations are present in the water treatment residuals.
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