Water: Waste Treatment
Effluent Guidelines Amendment to the Centralized Waste Treatment Point Source Category Final Rule
We published minor changes to the effluent guidelines for Centralized Waste Treatment. We deleted limitations for five metal and two organic pollutants from certain sections of the regulation and corrected an error in the December 2000 rule.
In December 2000, EPA promulgated effluent limitations for the Centralized Waste Treatment Point Source Category. This regulation established wastewater discharge standards for facilities that treat or recover metal-bearing, oily, and organic wastes, wastewater, or used material received from off-site. In response to requests from the regulated community and on further review of the rule, the Agency decided to make several minor changes.
About the Amendments
First, the changes delete the selenium limitations and standards from sections of the Metals Treatment and Recovery subcategory and delete the barium, molybdenum, antimony, and titanium limitations and standards from the Oils Treatment and Recovery subcategory. We have learned that, under certain circumstances, the treatment technologies we used as the basis for the December 2000 limitations and standards do not remove these pollutants as we expected.
Second, the amendments delete the molybdenum, antimony, aniline, and 2,3-dichloroaniline limitations and standards from the Organics Treatment and Recovery subcategory. We have learned that these four pollutants do no meet the criteria for regulation that we used in the December 2000 rule.
Third, the amendments reflect these changes in the Multiple Wastestreams subcategory, which covers facilities that treat or recover some combination of metal-bearing, oily, and organic waste receipts.
Finally, the amendments revise a direct discharge BOD5 daily maximum limitation in the Multiple Wastestreams subcategory for combined metals and organics waste receipts to correct a publication error in the December 2000 rule.
How to Get More Information
You can get more information about this rule by contacting Jan Matuszko (firstname.lastname@example.org), at 202-566-1035, U.S. Environmental Protection Agency, Office of Science and Technology, 4303T, 1200 Pennsylvania Avenue, N.W., Washington, DC 20460.