SOLID WASTE PROCESSING AND DISPOSAL
Rule 1200-01-07-.04, continued)
The Commissioner may allow the use of monitoring points or devices other than wells if he determines that such will reliably yield samples that are representative of the entire flow zone depth to be evaluated.
The Commissioner may require site specific investigation measures if he determines such is necessary to adequately evaluate proposed monitoring well locations.
Sampling, Analysis, and Recordkeeping Requirements
The ground water monitoring program must include consistent sampling and analysis procedures that are designed to ensure monitoring results that provide an accurate representation of ground water quality at the upgradient and downgradient wells installed pursuant to Rule 1200-01-07- .04(7)(a)3.
At a minimum, the program must include procedures and techniques for:
Sample preservation and shipment;
Chain of custody control; and
Quality assurance and quality control.
The ground water monitoring program must include sampling and analytical methods that are appropriate for ground water sampling
and that accurately measure hazardous constituents and
Ground water elevations must be measured in each well prior to purging
each time ground determine the rate water is sampled.
water is sampled.
or operator must each time ground which monitor the
same waste management area must be measured in a period enough to avoid temporal variations in ground water flow preclude accurate determination of ground water flow rate and
of time short which could direction.
The owner or operator must establish background ground water quality in a hydraulically upgradient or background well(s) for each of the monitoring parameters or constituents of the particular ground water program that applies to the SWLF unit, as determined in parts 5 or 6 of this subparagraph.
The number of samples collected to establish ground water quality data must be consistent with the appropriate statistical procedures determined pursuant to subpart (v) of this part.
The owner or operator must select and report to the Commissioner a statistical method to be used in evaluating ground water monitoring data. The statistical test chosen shall be conducted separately for each
May, 2010 (Revised)