Abstract |
The PRELIM 4.0 program is designed to be used in concurrence with U.S. Environmental Protection Agency's (EPA's) 1987 'Guidance Manual on the Development and Implementation of Local Discharge Limitations Under the Pretreatment Program' (hereafter referred to as EPA's local limits guidance manual) in developing technically based local limits for Publicly Owned Treatment Works (POTWs). The program can be useful to POTWs or consultants for developing or revising local numeric limitations, and to States and EPA personnel for reviewing the proposed specific pollutant limits in POTW pretreatment program submissions or local limits submissions. PRELIM 4.0 is a tool that simulates the methodology and calculations found in EPA's local limits guidance manual. Users of PRELIM cannot replace sound judgement where interpretation of input or output data is needed. Moreover, the technical adequacy of the PRELIM output is primarily a function of the extent and quality of POTW-specific data input. Extensive reliance on PRELIM literature data will greatly diminish the validity of PRELIM-derived local limits. |