HomeMy WebLinkAbout248.00MANIFOLD
ET PIPE
NOTES
1. CONDITION OF USE
1.1. MAY BE USED AS A SECOND WATER QUALITY FACILITY IN ENHANCED BASIC WATER QUALITY TREATMENT.
1.2. MAY BE FILLED WITH SEVERAL TYPES OF FILTER MEDIA INCLUDING PERLITE, ZEOLITE AND IRONINFUSSED MEDIA.
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. STORMFILTER SIZING IS BASED ON THE WATER QUALITY FLOW.
2.2. ACCESS MOST BE PROVIDED BY EITHER 3'X9' ACCESS DOOR OR REMOVABLE PANELS TO ALLOW FOR REMOVAL AND REPLACEMENT
OF EITHER FILTER CARTRIDGE. REMOVABLE PANELS SHALL BE AT GRADE, HAVE STAINLESS STEEL LIFTING EYES, AND WEIGHT NO
MORE THAN 5 TONS PER PANEL.
2.3. ACCESS TO THE INFLOW AND OUTLET CELLS MUST BE PROVIDED.
2.4. LADDER ACCESS IS REQUIRED WHEN VAULT HEIGHT EXCEEDS 4 FEET.
2.5. LOCKING LIDS SHALL BE PROVIDED AS SPECIFIED FOR DETENTION.
3. MAINTENANCE STANDARDS
3.1. ROUTINE MAINTENANCE SHALL INCLUDE INSPECTING FOR DEBRIS, VEGETATION, AND SEDIMENT ACCUMULATION, FLUSHING THE
UNDER DRAIN, AND REMOVING OR REPLACING COMPOST MEDIA.
3.2. SEDIMENT SHALL BE REMOVED WHEN THE ACCUMULATION CAUSES THE INFILTRATION CAPACITY TO DROP BELLOW DESIGN FLOW
RATE.
3.3. THE MEDIA SHALL BE REPLACED AT LEAST ONCE A YEAR OR WHEN INFILTRATION CAPACITY IS UNRECOVERABLE.
3.4. MEDIA SHALL BE DISPOSED OF IN ACCORDANCE WITH APPLICABLE REGULATIONS INCLUDING THE STATE DANGEROUS WASTE
REGULATIONS (WAC -173-303).
Y � STD. PLAN - 248.00
„ + PUBLIC WORKS STORMFILTER
DEPARTMENT SCHEMATIC
F'�pN tp$ MARCH 2008