Are confined spaces posted with warning signs (where feasible)?
4. If entry is to be made, has the air quality in the confined space been tested for safety based on the following: • Oxygen supply at least 19.5% o Flammable range less than 10% of the lower explosive limit o Absence of toxic air contaminants? 5. Are workers and supervisors being continuously trained in the selection and use of: • respiratory protection • lifelines • emergency rescue equipment • protective clothing? 6. Are workers being properly trained in confined space entry? 7. Are confined space safe work practices discussed in safety meetings? 8. Are employees being continuously trained in confined space rescue procedures? 9. Is ventilation equipment available and/or used? 10. Is the air quality monitored when the ventilation system is operating? Recommendation #3: The employer and other municipalities should consider installing self-priming wet well sewer pumps by retrofitting, or replacing old pumps as they are taken out of service. Discussion: Properly installed, a self-primin
