List preventative maintenance actions and the corrective maintenance actions in the tables provided below. Preventative Maintenance Actions The frequency of the preventative maintenance actions listed here is adopted from Chapter 9, BMP Manual of Structural Stormwater Management Measures. Design engineer and responsible should adjust the frequency of preventative maintenance actions according to the situations of the stormwater management measures in the development. Frequency Preventative Maintenance Actions Stormwater Measures/ No. (list specific preventative maintenance actions and the (list specific stormwater management required frequency) measures pertinent to the Frequency Monthly Vegetation mowing and removal in growing e.g., Grass Swale (GS #1, GS#2), season Infiltration Basin (Basin #1), monthly preventative maintenance access actions Quarterly Quarterly inspection e.g., Grass Swale (GS #1, GS#2), (Sediment removal, depending on the type of Infiltration Basin (Basin #1), measure) Drywell (DW#1, DW#2) Other quarterly preventative maintenance actions Semiannual Sediment removal, depending on the type of e.g., Grass Swale (GS #1, GS#2), measure Infiltration Basin (Basin #1), Other semiannual preventative maintenance Drywell (DW#1, DW#2) actions) Annual Basin Structural Inspection e.g., Grass Swale (GS #1, GS#2), Other annual preventative maintenance Infiltration Basin (Basin #1), actions Drywell (DW#1, DW#2) Biennial Sand layer replacement for sand filter and e.g., Grass Swale (GS #1, GS#2), infiltration basin only Infiltration Basin (Basin #1), Others biennial preventative maintenance Drywell (DW#1, DW#2) actions Unscheduled Quick inspection after every 1” rain e.g., Grass Swale (GS #1, GS#2), Infiltration Basin (Basin #1), Drywell (DW#1, DW#2) (Other) e.g., specific maintenance schedule for a manufactured treatment device as required by the manufacturer
List preventative maintenance actions and the corrective maintenance actions in the tables provided below. Preventative Maintenance Actions The frequency of the preventative maintenance actions listed here is adopted from Chapter 9, BMP Manual of Structural Stormwater Management Measures. Design engineer and responsible should adjust the frequency of preventative maintenance actions according to the situations of the stormwater management measures in the development. Frequency Preventative Maintenance Actions (list specific preventative maintenance actions and the required frequency) Stormwater Measures/ No. (list specific stormwater management measures pertinent to the Frequency Monthly Vegetation mowing and removal in growing season monthly preventative maintenance actions e.g., Grass Swale (GS #1, GS#2), Infiltration Basin (Basin #1), access Quarterly Quarterly inspection (Sediment removal, depending on the type of measure) Other quarterly preventative maintenance actions e.g., Grass Swale (GS #1, GS#2), Infiltration Basin (Basin #1), Drywell (DW#1, DW#2) Semiannual Sediment removal, depending on the type of measure Other semiannual preventative maintenance actions) e.g., Grass Swale (GS #1, GS#2), Infiltration Basin (Basin #1), Drywell (DW#1, DW#2) Annual Basin Structural Inspection Other annual preventative maintenance actions e.g., Grass Swale (GS #1, GS#2), Infiltration Basin (Basin #1), Drywell (DW#1, DW#2) Biennial Sand layer replacement for sand filter and infiltration basin only Others biennial preventative maintenance actions e.g., Grass Swale (GS #1, GS#2), Infiltration Basin (Basin #1), Drywell (DW#1, DW#2) Unscheduled Quick inspection after every 1” rain e.g., Grass Swale (GS #1, GS#2), Infiltration Basin (Basin #1), Drywell (DW#1, DW#2) (Other) e.g., specific maintenance schedule for a manufactured treatment device as required by the manufacturer
00-maintenance-plan-april-2015.docx