A Compliance Order was issued to the Respondent under Section 113(a)(3) of the Clean Air Act for violations at the companyÂs quarry in Mongaup Valley, New York. The quarry is an area source of hazardous air pollutants and operates a reciprocating internal combustion engine that failed to meet the May 3, 2013 compliance deadline for the RICE NESHAPs, 40 C.F.R. Part 63, Subpart ZZZZ. The Order establishes a compliance schedule to bring the facility into compliance by May 3, 2014.