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My neighbor and I have found that cemetery personnel routinely dump plastic ornaments from all seasons in the cemetery dump, contrary to the no plastics policy described at the recent city council meeting. If adherence to crematorium regulations is as lax as adherence to the no plastics in the dump policy, I would expect the employee/management culture at the Ras el awn cemetery to be incapable of running a crematorium safely. If the dump is used as a test of competence at following regulations, the permit should be denied. Because normal crematorium operation and burning plastics are sources of HCl emissions, and the cemetery organization is not careful about plastics disposal against regulation, I believe this proposal represents a significant hazard to the health of my family. The engineering behind Minnesota crematorium regulations does not appear to anticipate the rapid growth of the industry. With four fold growth in the last 10 years, we need to be suspicious of industry comparison standards for new pollution sources in residential areas. If you cannot legally deny the permit, please require that the crematorium not be run with wind speeds less than 10 mph and put a no plastics / no radioactive content limitation on the crematorium. Thank you, George Larson 1781 Alameda St. Roseville MN 55113 651-489-6346 Appended excerpt from http://www.doublef.co.uk/texts/ecol/crem.htm b) The calculation of chimney heights using the Warren Springs Laboratory Report CR3445 (PA) December 1991, and the 3rd Chimney Heights Memorandum. The two principal design methodologies adopted generally in calculating the appropriate chimney heights required to disperse pollutants emitted from incinerator chimneys differ in detail, but give broadly similar results for any given set of data. Both methods are concerned with the emission of gases which are considered to present special environmental hazards. These gases are sulfur dioxide and hydrochloric acid gas. The methodologies convert the volume of the hot gases discharged from the chimney to a much lower volume at 'normal temperature and pressure' . This is simply a method of converting the level of pollutants in chimney gas effluents at widely different temperatures to a single standard level at which the polluting potential of the effluent can be calculated. (It should be realised that it is a common practice nowadays to use substantial amounts of PVC plastic during cremation. This is a major source of both hydrochloric acid and the very poisonous chemicals of the dioxin family that are presently a major source of concern over the safety of incineration. ) c) Warren Spring methodology. The Warren Spring methodology calculates a 'Pollution index' for each major constituent, then converts hydrogen chloride to a 'sulphur dioxide equivalent' for the purposes of calculating the total pollution index. Following this, the 'discharge momentum' of the gas from the unit is calculated. This is a measure of the acceleration of the gases up the chimney, and provides estimates of the relative effects of buoyancy due to temperature and speed of the gases in the chimney. This provides a guideline for estimating the basic ('uncorrected' ) height necessary for the chimney to function properly. The uncorrected height is then multiplied according to a complex formula, and the result added to the maximum height of the building, to obtain a final chimney height which is designed to ensure that none of the emission plume is drawn down into the eddies behind the building. The Warren Spring methodology indicates that the corrected chimney height to prevent L