EXHIBIT 4-2_55A_BRISTOL WIDENING TECHNICAL STUDIES

Home Browse Search

The state and federal lead standards were not exceeded at the Anaheim station. The one --hour state nitrogen dioxide standard (25 ppm) was exceeded on less than one percent of the days monitorSd at this station. The 24 -hour state sulfate standard (25 ug/m ) was not exceeded at the Anaheim station. Effects of Pollutants on Receptors Demonstrated effects of air contaminants on health and vegetation are detailed on page 7 of the Appendix and summarized in Table 3- 1. Air Quality Management Plan (AQMP) The federal Clean Air Act and the state Lewis Air Quality Act require the preparation of a plan for the South Coast Air Basin (SCAB) which will demonstrate the attainment of both the federal and state air quality standards. at the earliest date achievable (1987) using all reasonably available control measures. The AQMP, originally adopted in 1979 and revised by the 1982 Draft (adopted in October 1982), is a basin -wide plan which defines the nature and source of air contaminants and quantifies the-reduc- tions neccessary to bring the SCAB into compliance with federal and state air quality standards. A revision to the AQMP is expected in late 1988. The "Draft AQMP 1982 Revision ", identifies the control treasures available for implementation by 1987 as well as long range stra- tegies to bring the basin into later compliance. These measures will meet the federal standard for'nitrogen dioxide and for lead by 1987 and the state standard by 2000 (for both). There will 'be continuous attainment of federal sulfur dioxide standards, state sulfate standards and state CO standards; however, violations will continue for particulates. and ozone after the 1987 attain- ment deadline. Federal carbon monoxide standards are expected to be met by the year 2000. In conjunction with the Southern California Association of Governments (SCAG), the South Coast Air Quality Management Dis- trict (SCAQMD) prepares an annual "Reasonable Further Progress Report" which evaluates the AQMP's progress toward the reduction and control of pollutant emissions to acceptable levels. This report is presented to the Environmental Protection Agency {EPA) for review. The,repor� describes basin -wide progress in reducing total hydrocarbons [THC) and carbon monoxide (CO) levels. Pro- gress in reducing nitrogen dioxide levels was required in this report until a plan revision was submitted to the EPA in Septem- ber, 1985. 1. Telephone conversation with the SCAQMD information officer, August 20, 1987. 3 -3