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Home My WebLink AboutIR 6974 INFORMAL REPORT TO CITY COUNCIL MEMBERS No.6974 NrFT f A, October 16, 1984 �4fORl�o To the Mayor and Members of the City Council rEXPy= Subject: AIR QUALITY ISSUES (OZONE) 1.7 Introduction In February 1983, Tarrant County was declared to be in non-attainment of federal ozone standards and potentially subject to sanctions which would eliminate or restrict highway funds and other specified federal funds. The Texas Air Control Board (TACB), as the responsible state agency, immediately began developing data for revision of the State Implementa- tion Plan (SIP). In September 1984, the TACB presented an Issue Paper concerning the revisions of the SIP and attainment of the ozone standard in Tarrant County. The Issue Paper was condensed into an Executive Summary from which the following information was obtained: Discussion Clean Air Act Amendments of 1977 required states to adopt State Imple- mentation Plan (SIP) revisions which would demonstrate attainment of national air quality standards in all areas by December 31, 1982. On March 25, 1980, the Environmental Protection Agency (EPA) approved SIP revisions submitted by the State as demonstrating attainment by the deadline for ozone in Tarrant County and other areas of the State. On February 3, 1983, the EPA proposed to impose sanctions in those areas which had been identified as failing to reach attainment by the 1982 deadline. On November 2, 1983, the EPA officially published a reversal of its sanction policy for areas with approved SIPs which have implemented all committed control programs and established the basis for additional SIP revisions to correct apparent deficiencies in Dallas, Tarrant and E1 Paso counties. On February 24, 1984, the EPA sent a letter to the Governor calling for SIP revisions for these three counties to be sub- mitted within one year. A request to extend the submittal deadline from February 1985 until August 1985 is currently in draft. The Ozone Standard Has Not Been Attained in Tarrant County Ambient ozone concentration must be reduced from 0.15 parts per million to the national standard of 0.12 ppm. Ozone levels were measured at four sites in Tarrant County during 1981 to 1983. The national standard was exceeded at (Continued) L ISSUED BY THE CITY MANAGER - — FORT WORTH, TEXAS INFORMAL REPORT TO CITY COUNCIL MEMBERS No. 6974 - p.2 IPT I RF ` ORr�CJ FS p To the Mayor and Members of the City Council October 16, 1984 exA Subject: AIR QUALITY ISSUES (OZONE) eT� three sites. At each site, during 1981 to 1983, the standard was exceeded on five days or less per year. Volatile Organic Compound (VOC) Emissions Must Be Reduced by 42% The EPA requires that ozone levels be reduced by limiting emissions of VOC. Calculations based on data available to date indicate that VOC emission levels must be reduced from 62,155 tons in 1983 to 36,050 tons in 1987 (a reduction of 26,005 tons/years) to pro- vide an acceptable demonstration for attainment of the ozone standard. More specific and comprehensive data is being collected, but it is not known if the reduction requirement will be signifi- cantly changed. Preliminary Estimates Indicate That A 34% VOC Emission Reduction Can Be Accomplished By: Automotive emission controls mandated by the Federal Motor Vehicle Control Program (FMVCP). 7,590-ton reduction by 1987, no additional local economic impact. Implementation of a "Harris County-type" automobile inspection and maintenance (I/M) program. 2,335-ton reduction by 1987, economic impact of $9,200,000 per annum. Implementation of transportation control measures (TCM). 1,007-ton reduction by 1987, economic impact of $5,120,000 per annum, but measures likely to be implemented regardless of need for air pollution control. Increased control of evaporative emissions from automobile service stations (Stage II vapor recovery). 1,765-ton reduc- tion by 1987, economic impact of $1,942,000. Additional controls on industrial and commercial sources. 8,416-ton reduction by 1987, economic impact of $22,530,000. Total economic impact equals $33,672,000 plus costs associated with transportation control measures. Additional Control Measures May Be Available More stringent, less reasonable control measures have been identified. However, the gain is only an additional 3,305 (Continued) - ISSUED BY THE CITY MANAGER - FORT WORTH, TEXAS INFORMAL REPORT TO CITY COUNCIL MEMBERS No. 6974 - p.3 �,P T[gFQ �oE1OP"o To the Mayor and Members of the City Council October 16, 1984 �rfXP`� Subject: 1 AIR QUALITY ISSUES (OZONE) tons by 1987 at an additional cost of $19,522,000. More significantly, this may mean that a tailpipe inspection and maintenance program could be required in addition to the Harris County-type program currently being considered. Addi- tion of these controls would still not provide for a demon- stration of attainment. Another means of control (limiting the vapor pressure of gaso- line sold in the county) is being investigated. Such controls could reduce VOC emissions sufficiently to demonstrate attain- ment at the 42-percent level. The estimated cost of such a limitation will be determined to assess cost effectiveness. Enforceable Control Measures Must Be Initiated By Revising The State Implementation Plan (SIP) If it is not possible to demonstrate attainment, the EPA may simply require the application of all Reasonably Available Control Measures for all sources of VOC. It may be necessary to require some or all of the more stringent, high-cost con- trols already identified as well as others not yet determined. Major Milestones associated with the current SIP revisions process (dates reflect an extended schedule): October 3-10, 1984: Conduct public meetings in Dallas, Tarrant and E1 Paso counties to receive public comment on SIP revision issues. January 1985: Review public hearing proposals for SIP and regulation revisions with the Texas Air Control Board Regula- tion Development Committee. February 1985: Conduct public hearings on proposed SIP and regulation revisions. June 1985: Review staff-recommended SIP and regulations revi- sion proposals with Regulation Development Committee. July 1985: Present Regulation Development Committee recom- mendation to the Board for adoption. August 1985: Submit adopted revision proposals to the Gover- nor for transmittal to the EPA. (Continued) ISSUED BY THE CITY MANAGER - FORT WORTH, TEXAS INFORMAL REPORT TO CITY COUNCIL MEMBERS No. 6974 - p.4 �,,N T(gFQ October 16, 1984 moo,i0RT� To the Mayor and Members of the City Council o �rEXAyt Subject: AIR QUALITY ISSUES (OZONE) eT 3 DALLAS AND TARRANT COUNTY POST-1982 SIP REVISION COMPARISON Dallas Tarrant Ozone Design Value 0.16 ppm 0.15 ppm Percent VOC Reduction Required 40% 42% Countywide Emission Base (1983) 93,544 T/Y 62,155 T/Y VOC Emission Reduction Options: FMVCP 14,341 T/Y 7,590 T/Y I/M 3,522 T/Y 2,335 T/Y TCM's 1,902 T/Y 1,007 T/Y Stationary Sources 12,658 T/Y 10,181 T/Y Total 32,423 T/Y 21,113 T/Y Needed Reduction 39,084 T/Y 26,105 T/Y Estimated Economic Impact: TCM's $33,050,000** $ 5,120,000 All Other Controls $44,444,000 $33,672,000 ppm - parts per million T/Y - tons per year * VOC reduction requirements based on preliminary information. Con- sidering accuracy of computer simulation models, 40% is not signifi- cantly different from 42%. As is indicated above, it is not antici- pated that stringency of controls required will differ between Dallas and Tarrant Counties. ** Includes costs associated with Dallas Area Rapid Transit System. Purpose This report is submitted to inform the council and raise the following issues: Staff will continue to work with TACB, EPA and COG to find ways to meet air quality standards. (Continued) ISSUED BY THE CITY MANAGER - FORT WORTH, TEXAS 4 r INFORMAL REPORT TO CITY COUNCIL MEMBERS No. 6974 — p-3— N'Fr[gfp �pr�FORTyo To the Mayor and Members of the City Council October 16, 1984 ��H �TeX3 Subject: AIR QUALITY ISSUES (OZONE) 1073 At some future point it may be worthwhile to explore the issues of considering the DFW area as a single air shed for control planning purposes. Planning is currently aimed at submission of an acceptable SIP by August 1985. Efforts at long-range air quality planning may need to be given high priority. Council may want to consider appointment of a representative or council committee as liaison with staff on air quality issues. Local government has an opportunity for input into the SIP revisions. The alternative is SIP revisions that impact Fort Worth and Tarrant County to be dictated by TACB and/or EPA. As changes occur, staff will keep the council informed and contrast future changes with the TACB Issue Paper. It is anticipated that a council resolution may be requested within the next three months. Copies of the TACB Issue Paper for Tarrant County are available and the staff will provide additional information upon request. Robert L. Herchert City Manager CV:VS:bem '- ISSUED BY THE CITY MANAGER - FORT WORTH, TEXAS