Stormwater Management Plan - Rev 1

                                 MAINTENANCE

1. Remove the manhole covers and open all access hatches.
2. Before entering the system make sure the air is safe per OSHA Standards or use a breathing apparatus. Use low
   O2, high CO, or other applicable warning devices per regulatory requirements.
3. Using a vacuum truck remove any liquid and sediments that can be removed prior to entry.
4. Using a small lift or the boom of the vacuum truck, remove the used cartridges by lifting them out.
5. Any cartridges that cannot be readily lifted directly out of the vault should be removed from their location and
   carried to the lifting point using the Trolley system installed in the Vault (if applicable).
6. When all cartridges are removed, remove the balance of the solids and water; then loosen the stainless clamps
   on the couplings in the pipe manifold; remove the drain pipes as well. Carefully cap the manifold and rinse the
   floor removing the balance of the collected solids.
7. Clean the manifold pipes, inspect, and reinstall.
8. Install the exchange cartridges and close all covers.
9. The used cartridges must be sent back to SPEL Environmental for exchange/recycling and credit on undamaged
   units.




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