Common use of Building Cleaning Clause in Contracts

Building Cleaning. General Guidelines 🡺 Note: Permission must be obtained for any discharge of wash water to the sanitary sewer from the local sewering agency. ✓ When cleaning building exteriors and walls composed of glass, steel, or painted surfaces with no lead or mercury: - Do not allow wash water to enter the storm drain. - When washing without soap, discharges can be directed to landscaped or dirt areas. - When washing with soap, direct discharges to the sanitary sewer if permitted to do so or vacuum/pump water to a tank and dispose of properly ✓ When washing building exteriors painted with lead-based or mercury additive paint: - Do not allow discharges to enter storm drain - Vacuum/pump discharges to a tank - Dispose of as a hazardous waste as needed ✓ When acid washing mineral deposits: - Do not allow discharges to enter storm drain. - Rinse treated area with alkaline soap and direct washwater to a landscaped or dirt area - Alternatively, washwater may be collected and neutralized to a pH between 6 and 8, and disposed of properly. OPTIONAL: • If cleaning agents are used, select biodegradable products whenever feasible.

Building Cleaning. General Guidelines 🡺 Note: Permission must be obtained for any discharge of wash water to the sanitary sewer from the local sewering agency. ✓ When cleaning building exteriors and walls composed of glass, steel, or painted surfaces with no lead or mercury: - Do not allow wash water to enter the storm drain. - When washing without soap, discharges can be directed to landscaped or dirt areas. - When washing with soap, direct discharges to the sanitary sewer if permitted to do so or vacuum/pump water to a tank and dispose of properly ✓ When washing building exteriors painted with lead-based or mercury additive paint: - Do not allow discharges to enter storm drain - Vacuum/pump discharges to a tank - Dispose of as a hazardous waste as needed ✓ When acid washing mineral deposits: - Do not allow discharges to enter storm drain. - Rinse treated area with alkaline soap and direct washwater to a landscaped or dirt area - Alternatively, washwater may be collected and neutralized to a pH between 6 and 8, and disposed of properly. OPTIONAL: • If cleaning agents are used, select biodegradable products whenever feasible.