Each facility should report the amount of coal received on a per shipment basis for the calendar year. In addition, for every sixth shipment the mercury and chlorine content of the coal, and any other available analyzed information as specified, should be reported. However, each facility is required to obtain a minimum of three analyses per month for mercury and chlorine in order to maintain good statistical practices.

There are two exceptions where "shipments" will not apply in maintaining these three analyses per month. If a facility such as a mine-mouth operation does not receive "shipments" of coal, analyses of the coal supply should be made approximately every ten days in order to meet the required three analyses per month. A facility that receives less than 18 shipments of coal in any given month should report the analyzed information for 3 shipments received that are spaced approximately equally across the month.

At the end of the first quarter (i.e., three months), an evaluation is required to determine whether or not a 90 percent confidence interval about the mean amount of mercury content from the coal is within +/-30 percent. The calculation is as follows:

If the Evaluation meets this target, continue analysis for every sixth shipment with a minimum of three reports per month. If the evaluation is outside the target, start reporting every third shipment, while maintaining a minimum of three analyses per month.

This evaluation should be repeated every quarter (i.e., every three months) for the duration of one year. The following table indicates how to process based on the potential outcomes of the quarterly evaluations.

IF	THEN
Two quarterly evaluations back-to-back (i.e., total over a 6-month period) meet target...	...analyses may be relaxed to every twelfth shipment.
The evaluation results fail to meet the target in any quarter...	...analyses must increase to every shipment, if current analyses are being made for every third shipment; ... OR
	...to every third shipment, if current analyses are being made for every sixth shipment; ... OR
	...to every sixth shipment, if current analyses are being made for every twelfth shipment.
Analyses for every shipment or every third shipment and a quarterly evaluation meets the target...	...analyses may be relaxed back to every third shipment, if analyzing every shipment; ... OR
	...analyses may be relaxed back to every sixth shipment, if analyzing every third shipment.

There should never be fewer than three reports per month (i.e., minimum total reports for the year should be 36) for each facility nor should a facility ever sample less frequently than every twelfth shipment.

Information on facilities identified as having to participate in Part II is available for download in PDF, Excel, and Lotus 1-2-3 formats.

  For more information, check out the Part II Frequently Asked Questions

OMB Control Number 2060-0396
Last Update: 12 March 1999
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