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Page b GOVERNMENT AND BOWEN CONSTRUCTION STANDARDS Currently the health and safety of workers performing hazardous waste activities regulated by OSHA (29 CFR 1910. 120) . The OSHA PEL for gasoline vapor is 300 ppm average over an eight-hour period. The 15-minute short term exposure limit is 500 ppm. To ensure that no project workers monitored several times each day using either a photoionization detector (FID) or colorimetric indicator tubes. If the FID or colorimetric indicator tube samples indicate that hydrocarbon vapor levels are SO ppm or greater , then daily air samples will be collected from representative project personnel using charcoal tube sampling methods (OSHA Method 1M1S1340) . Personnel will be notified in writing of the results of any personal air samples and their significance. A copy of this report will be maintained in the employee 's medical surveillance file. ACCESS AND DECONTAMINATION Access Access to the project work: area zones shall be regulated and limited to authorized persons. a daily log shall be kept all persons entering such areas. The work: area itself shall be cordoned off using barrier tape or other suitable barriers. Decontamin ation Due o the low toxicity of the material involved (gasoline) , the anticipated low levels of contamination , and the minimal hazard posed of spread of contaminated soil , formal decontamination procedures will not be required. The following site requirements will be enforced: Eating , drinking and smoking within the work: area are prohibited. project personnel may eat , drink: or smoke outside the work area, only if they have washed their hands and face. An emergency eye wash station shall be located on the job site adjacent to the work area. Any potentially contaminated equipment will either be disposed of , or washed off with soap and water. Any equipment used in the contaminated zone should be washed with soap and water before it is removed from the site.