OEL returns the Operational Evaluation Level (OEL) for a variable. OEL calculates the sum of current quarterly average multiplied by 2, previous quarterly average, and the 2nd previous quarterly average and divides by 4. Calculates on the last day of each quarter.
SYNTAX:
OEL(Cx)
where :
Cx is a conditional variable x
NOTES:
The Locational Running Annual Averages (LRAA) and Operational Evaluation Level (OEL) are required as part of the Stage 2 Disinfection Byproducts rule (DBPR) for Total Trihalomethanes (TTHMs) and Haloacetic Acids (HAA5s).
Function will calculate if one (1) value is found in any quarter.
SEE ALSO:
LRAA
EXAMPLES
Calculating 12/31/2024
OEL(50001) - Calculates the average for Q4 2024 (Oct 1 thru Dec 31 2024) times 2, Q3 2024 (July 1 thru Sep 30 2024), Q2 2024 (April 1 thru June 30 2024) and sums the values and divides by 4.
