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EPA- or ASTM-accepted method. "Sampling Frequencies:" The "normal frequency of sampling" for the underdrain system shall be weekly (one sample per week) for analysis for the water-quality parameters identified in this commitment until such time as CC&V makes an alternative proposal that is acceptable to the OMLR. This frequency may be required to be temporarily increased, under certain conditions described below. The "normal frequency of sampling" for the Leak Detection System ("LDS") shall be weekly (one sample per week) providing water is present in adequate amount for pumping, for analysis of the water-quality parameters identified in this commitment until such time as CC&V makes an alternative proposal that is acceptable to the OMLR. This frequency may be required to be temporarily increased at certain locations, under certain conditions described below. The "normal frequency of sampling" for designated ground-water wells shall be monthly weekly (one sample per 30 or 31 days) providing water is present in adequate amount for pumping, for analysis of the water-quality parameters identified in this commitment until such time as CC&V makes an alternative proposal that is acceptable to the OMLR. This frequency may be required to be temporarily increased at certain locations, under certain conditions described below. "Not exceeded" as used in the protocols is defined as follows: the exceedences defined above in Tables 1-3 will not exist if three consecutive surface water samples taken at AG-01.5 on three consecutive days have WAD cyanide and pH equal to or less than the criterion defined in Table 1; or if five consecutive LDS samples taken five days apart have WAD cyanide less than or equal to the numeric concentrations identified n Table 2; or if ground water concentrations decrease so as to not exceed the concentration criterion listed in Table 3 for two consecutive samples collected at least one week apart. Protocols: Underdrain System: If the CNW„p concentration and pH in the underdrain system exceeds the values listed in Table 1, CC&V shall undertake the following steps: a. Notify the OMLR by telephone within 3 working days of having knowledge of the combination of elevated water-quality parameters. b. The frequency of monitoring shall be increased to 4 samples per 7 days until the concentrations listed in Table 1 are not exceeded or until it is shown to the satisfaction of the OMLR that the increased frequency is not required because pertinent information is not being generated. c. If both of these concentrations listed in Table 1 are exceeded for more than 90 days, or if the levels rise to <_2.0 mg/1 CNWAp and <_9.5 s.u., CC&V will consider there to be a defect in the active Cresson Valley Leach Facility that allows CN-bearing solution from that facility to move into the surrounding environment and will combine this information with the 2