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STANDARDS <br /> <br />INTENT: These performance standards are designed to encourage a <br />high standard of development by providing assurance that <br />nei~borin§ land uses will be ~o~patible. All future develoi~ent <br />in all districts shall be required to meet these standards. <br />These standards shall also apply to existing development when <br />stated. The zoning offioer shall enforce these standards. <br /> <br />~3ISAN(~: No noise, odors, vibration, smoke, glare, air <br />pollution, or dangerous wastes shall be created that exceed the <br />following limits. <br /> <br />NOISE: <br />S~3ND LSVfL IN DECIBfLS MEASURED AT PROPERTY LINE <br /> <br />Cycl es/Sec. Residential Non-Residential <br />37.5 - 75 58 73 <br />76 - 150 54 69 <br />151 - 300 50 65 <br />301 - 600 46 61 <br />601 - 1200 40 55 <br />1201 - 2400 33 48 <br />2401 - 4800 26 41 <br />O~er 4800 20 35 <br /> <br />0~ORS: <br />Table III (Odor Thresholds in Chapter 5, "Air Pollution Manual", <br />copyright 1951 by Manufacturing Chemists Association, Inc., Washington, DC). <br /> <br />VIBRATI(~S: <br />Any vibration discernible (beyond property line) to the human <br />sense of feeling for three minutes of more duration in any one <br />hour and any vibration producing an acceleration of more than 0.1 <br />g. or resulting in any combination of amplitudes and frequencies <br />beyond the "safe" range of Table 7, U.S. Bureau of Mines Bulletin <br />No. 442, "Sei~ic Effects of Quarry Blasting", on any structure. <br /> <br />SMgKE: <br />Any emission of visible ~oke of a shade darker than No. 1 on the <br />Ringelmann Smoke Chart, as published by the U.S. Bureau of Mines, <br />except that visible grey smoke of a shade not darker than No. 2 <br />on said chart may be emitted for not more than four minutes in <br />any thirty minutes. <br /> <br />AIR POLLUTION (Fly ash, dust, fu~es, vapors, gasses, etc.): <br />Any emission which can cause any damage to health, animals, or <br />vegetation, or other forms of property, or which can cause any <br />excessive soiling at any point, and in no event any emission of <br />any solid or liquid particles in concentrations exceeding 0.3 <br />grains per cubic foot of the conveying gas or air at any point. <br />For measurement of the amount of particles in gasses resulting <br />from combustion, standard corrections shall be applied to a <br /> <br />K-1 <br /> <br /> <br />