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Storm Water Management <br /> System Components <br /> The storm water management system has several components that are shown on the Grading and <br /> Drainage Plans (GD-1), and they perform various functions in treating storm water runoff. <br /> Bioretention Basin <br /> The property owner/facility manager is responsible for cleaning the bioretention basins on the <br /> property. The bioretention basin shall be inspected every four months for the first year of <br /> operation. The inspection schedule for subsequent years can be revised to reflect the site-specific <br /> conditions observed during the first year of inspection, requiring a minimum of two inspections <br /> per year. The structure shall be cleaned out as necessary by a California licensed hauler with the <br /> sediment and debris disposed of legally. It is recommended that the property owner/facility <br /> manager retain a contract with a maintenance company in order to maintain the structure. <br /> A detailed maintenance logbook shall be kept for each structure. Information is to include, but <br /> not be limited to, the date of inspection, record of grit depth, condition of baffles, observation of <br /> any floatables, a date of cleaning performed, and date of any replacements of components. <br /> Catch Basins, Manholes, and Outlet Protection <br /> The property owner/facility manager is responsible for cleaning the catch basins and manholes <br /> on the property. A California licensed hauler shall clean the sumps and dispose of removed sand <br /> legally. The road sand may be reused for winter sanding but may not be stored on-site. As part <br /> of the hauling contract, the hauler shall notify the property owner/facility manager in writing <br /> where the material is being disposed. <br /> Each catch basin shall be inspected every four months, with one inspection occurring during the <br /> month of April. Any debris occurring within one foot from the bottom of each sump shall be <br /> removed by Vacuum "Vactor" type of maintenance equipment. <br /> During the inspection of each of the catch basin sumps, the hoods on each of the outlet pipes <br /> shall also be observed. In the event that a hood is damaged or off the hanger, it shall be reset or <br /> repaired. <br /> 220 Norwood Park South,Suite 201 • Norwood,MA 02062 • T(781)619-9500 • F(203)630-2615• www.blcompanies.com <br /> 3 <br />