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Effluent Guidelines
Chapter 8: Case Studies
Two case studies to provide guidance to the user in complying with the PFPR regulation.
This chapter describes the P2 practices implemented by two PFPR facilities. The first facility, operated by Ennis Agrotech and located in Ennis, Texas, is a formulator and packager of agricultural products. Ennis Agrotech uses a variety of P2 techniques, such as reuse of treated wastewaters, to achieve zero discharge of PFPR process wastewaters. The second facility, operated by MGK (McLaughlin Gormley King Company), was constructed in 1992 in Chaska, Minnesota, and illustrates how new facilities can incorporate P2 opportunities into their design.
In each case study, the following information is presented:
- An overview of the facility;
- A description of the PFPR operations, including wastewater generation; and
- A discussion of the P2 techniques implemented by the facility.
Each case study was prepared from information collected during site visits and through follow-up telephone calls with facility personnel. This information was correct at the time of development of the final rule, but operations may have changed since that time. The P2 practices implemented and their benefits are solely based on the opinions of the facilities presented here. Specific P2 practices and equipment presented in the case studies in italicized bold print are defined in the P2 glossary in Chapter 3.
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