74:27:19:05Detection monitoring
Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
frequency. The owner or operator shall monitor parameters semiannually during the active life of the facility and throughout the postclosure period, with at least one sample being collected and analyzed from each designated monitoring well during subsequent sampling events. The owner or operator shall collect a minimum of four independent samples from each monitoring well and analyze them for ambient groundwater quality during the first semiannual sampling period. No two samples may be collected in the same month.
Source: 19 SDR 186, effective June 10, 1993.