The proposed amendments to Rule 1156-Further Emission Reductions from Aggregate and Cement Manufacturing would reduce particulate matter as well as hexavalent chromium emissions from cement manufacturing facilities. A socioeconomic assessment was conducted by the South Coast Air Quality Management District using the REMI model to analyze the secondary and induced impacts of this proposed amended rule. The projections showed an average of four jobs lost annually, which was an insignificant loss to the four-county study area. They also detailed that only two facilities, one in Riverside County, one in San Bernardino County, would be affected by this proposed rule, but the effect of these new provisions would have few impacts on the relative cost of production and delivered price compared to their national counterparts.
