Environmental Protection Agency May 26, 2020 – Federal Register Recent Federal Regulation Documents

Public notice is hereby given that the state of Montana has revised its Public Water System Supervision (PWSS) Program by establishing Administrative Penalty Authority that applies to its drinking water program. The EPA has reviewed Montana's submittal, and determined that the Administrative Penalty Authority is no less stringent than the federal regulations. The EPA is proposing to approve the Administrative Penalty Authority requirements for Montana. This approval action does not extend to public water systems in Indian country. Please see SUPPLEMENTARY INFORMATION, Unit B.

Whenever a new or revised National Ambient Air Quality Standard (NAAQS) is promulgated, the Clean Air Act (CAA) requires states to submit a plan for the implementation, maintenance, and enforcement of the standard, commonly referred to as infrastructure requirements. The Environmental Protection Agency (EPA) is proposing to approve Washington State Implementation Plan (SIP) submissions as meeting specific infrastructure requirements for the 2010 sulfur dioxide (SO2) and 2015 ozone NAAQS.

This regulation establishes a tolerance for residues of the insecticide indoxacarb in or on corn, pop, grain at 0.02 parts per million (ppm) and corn, pop, stover at 15 ppm. FMC Corporation requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA).

The Environmental Protection Agency (EPA) Region 8 announces the deletion of the Operable Unit 1 (OU1), Former Export Plant of the Libby Asbestos Superfund Site (Site) located in Lincoln County, Montana, from the National Priorities List (NPL). The NPL, promulgated pursuant to section 105 of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) of 1980, as amended, is an appendix of the National Oil and Hazardous Substances Pollution Contingency Plan (NCP). This partial deletion pertains to OU1. Operable Unit 2 (OU2), Former Screening Plant, was deleted from the NPL on April 10, 2019. Operable Unit 3 (OU3), Former Vermiculite Mine; Operable Unit 4 and Operable Unit 7 (OU4/OU7), Residential/Commercial Properties of Libby and Troy; Operable Unit 5 (OU5), Former Stimson Lumber Mill; Operable Unit 6 (OU6), BNSF Rail Corridor; and Operable Unit 8 (OU8), Highways and Roadways, are not being considered for deletion as part of this proposed action and will remain on the NPL. The EPA and the State of Montana, through the Montana Department of Environmental Quality, have determined that all appropriate response actions under CERCLA, other than operation and maintenance, monitoring and five-year reviews, have been completed. However, the deletion of these parcels does not preclude future actions under Superfund.