329 IAC 10-29-7 Phase II monitoring program

Sec. 7. (a) Phase II monitoring is required whenever statistically significant increases over background have been detected between background and downgradient monitoring devices for two (2) or more of the Phase I parameters under section 6 of this rule, and must continue until sampling results over a one (1) year period do not show a statistically significant increase in the constituents to be monitored under subsection (b) or (d). (b) A Phase II monitoring program for nonmunicipal solid waste landfills must include the constituents that comprise the ground water protection standard set out in section 10(a) of this rule. (c) The Phase II monitoring program for nonmunicipal solid waste landfills must also include monitoring of the following secondary standards: (1) Chloride. (2) Copper. (3) Iron. (4) Manganese. (5) Sulfate. (6) Total dissolved solids. (7) Zinc. (d) Appropriate monitoring constituents for restricted waste sites Type I and Type II must be determined by the commissioner based on the constituents of the waste permitted to be accepted at the site. (e) If the owner or operator of a restricted waste site Type I or Type II or nonmunicipal solid waste landfill determines, under section 5 of this rule, that there is a statistically significant increase for constituents specified in subsection (b) or (d) at any monitoring device at the monitoring boundary, the owner or operator shall do the following: (1) Notify the commissioner of this finding in writing within fourteen (14) days. The notification must indicate what constituents have shown statistically significant increases over background levels. (2) Within one hundred eighty (180) days, submit to the commissioner a plan for a corrective action program designed to meet the requirements of section 9 of this rule unless none; of the increases over background of constituents identified under this subsection results in an exceedance of the ground water protection standard under section 10 of this rule. (f) If the permittee determines that the level of concentration of any of the secondary standards at any monitoring device at the monitoring boundary has reached or exceeded the greater of two (2) times the background level or two (2) times the secondary maximum contaminant level established by 40 CFR 143.3, the permittee shall notify the commissioner of this finding within fourteen (14) days, specifying the secondary standards that have reached this level.