Environmental Protection Agency February 7, 2006 – Federal Register Recent Federal Regulation Documents

EPA is proposing to revise the waste treatment standard for 1,3-phenylenediamine (1,3-PDA) for a biosludge generated at DuPont's Chambers Works facility in Deepwater, New Jersey. This variance is necessary because the facility is unable to measure compliance with the previously promulgated 1,3-PDA treatment standard in its multisource leachate biosludge matrix. As a practical matter, therefore, the facility cannot fully document compliance with the requirements of the treatment standard. For the same reason, EPA cannot ascertain compliance for this constituent. Furthermore, faced with the inability to demonstrate treatment residual content through analytical testing for this constituent, this facility faces potential curtailment of 1,3- PDA production operations. This site-specific variance will provide alternative technology treatment standards for 1,3-PDA in multisource leachate that do not require analysis of the biosludge matrix to determine whether the numerical treatment standard is being met, thus ensuring that treatment reflecting performance of the Best Demonstrated Available Technology occurs and that threats to human health and the environment from land disposal of the waste are minimized. In the ``Rules and Regulations'' section of the Federal Register, we are revising the 1,3-PDA multisource leachate (F039) treatment standard for the DuPont Chambers Works facility in Deepwater, New Jersey without prior proposal because we view the revision as noncontroversial and anticipate no adverse comment. We have explained our reasons for this approach in the preamble to the direct final rule. If we receive adverse comment on this revision, however, we will withdraw the direct final action for that portion of the variance and it will not take effect. We will address all public comments in a subsequent final rule based on this proposed rule. We will not institute a second comment period on this action. Any parties interested in commenting on any amendment must do so at this time.