CONCRETE PIPE Stormceptor Maintenance To ensure long-term environmental protection through continual performance, Stormceptor must be maintained. The need for maintenance is determined through inspection of the Stormceptor. Procedures for inspection are provided in this document. Maintenance of the Stormceptor is performed from the surface via vacuum truck. . If you require a list of contacts for cleaning your Stormceptor please call one of our Stormceptor offices or your nearest Stormceptor affiliate. Inspection Using a dipstick or a similar device, the Stormceptor unit will be inspected, through the oil cleanout port, at least once every six months. The sediment depth and oil level is to be measured. Once the sediment depth reaches the recommended levels as indicated in the table below, the units should be serviced. If any large presence of oil is measured, the oil should be removed and disposed of. How Often Is Maintenance Required? Generally, annual maintenance is recommended but the required maintenance frequency will vary with the amount of pollution on your site (number of hydrocarbon spills, amount of sediment, etc.). It is recommended that the frequency of maintenance be increased or reduced based on local conditions. If the sediment load is high, maintenance may be required semi-annually. Conversely once the site has stabilized, maintenance may be required less frequently. Maintenance should be performed immediately after an oil spill or once the sediment depth in Stormceptor reaches the value specified in the table below based on the unit size. Model STC-300 STC-750 STC-1000 STC-1500 STC-2000 STC-3000 STC-4000 STC-5000 STC-6000 STC-9000 STC-10000 STC-14000 Sediment Depth for Servicing (mm) 200 200 250 375 300 425 375 450 375 375 450 375 PAGE 34 LAFARGE PIPE eMANUAL