Control Concepts Stormwater Operations & Maintenance Plan
Operations & Maintenance Plan
Control Concepts
Chanhassen, MN
Prepared by:
Loucks
NOPARKINGNOPARKING444888888CB 10
SUMP MANHOLE
CB 50
SUMP MANHOLE
CB 60
SUMP MANHOLE
CB 70
SUMP MANHOLE
CBMH 20 SUMP MANHOLE
53"x41" ARCH CMP
INFILTRATION SYSTEM
CBMH 30 SUMP MANHOLE
N
SCALE IN FEET
0 50 100
LOUCKS
W:\2017\17516\HYDROLOGY\O&M\CADD\17516 - O&M ExhibitPlotted: 05 /02 / 2019 1:3 PM7200 Hemlock Lane, Suite 300
Maple Grove, MN 55369
763.424.5505
www.loucksinc.com
PLANNING
CIVIL ENGINEERING
LAND SURVEYING
LANDSCAPE ARCHITECTURE
ENVIRONMENTAL
CADD files prepared by the Consultant for this project are
instruments of the Consultant professional services for use solely
with respect to this project. These CADD files shall not be used
on other projects, for additions to this project, or for completion
of this project by others without written approval by the
Consultant. With the Consultant's approval, others may be
permitted to obtain copies of the CADD drawing files for
information and reference only. All intentional or unintentional
revisions, additions, or deletions to these CADD files shall be
made at the full risk of that party making such revisions, additions
or deletions and that party shall hold harmless and indemnify the
Consultant from any & all responsibilities, claims, and liabilities.
CADD QUALIFICATION
SUBMITTAL/REVISIONS
PROFESSIONAL SIGNATURE
QUALITY CONTROL
CONTROL
CONCEPTS
CHANHASSEN, MN
OPERATIONS &
MAINTENANCE
EXHIBIT
EXHIBIT
Control Concepts BMP Maintenance and Inspection Specifications CB 10 PLAN VIEW DETAIL/PROFILE VIEW BMP ID: CB 10 Location: Curb line in north driveway Description of Device: 48” Diameter precast manhole with a 3 foot sump. Flow enters the structure through the inlet grate where solids settle out in the sump with clean flow discharging into a 12” HDPE pipe on the south side of the structure. Structure Access: Through a standard catch basin inlet grate.
Control Concepts BMP Maintenance and Inspection Specifications BMP ID: Sump Storm Sewer Structure CB 10 Maintenance and Inspection Report Inspection Date Inspector: Inspection Activity Observations/Measurements Maintenance Maint. Required Actions Required/Date Completed/Responsible Foreman Inspection of structure for trash, debris, floatables and oil Remove any floatables, accumulated trash or debris with a dip net or vacuum. More frequent cleaning is necessary if floatables regularly exceed a depth of 1 ft. Vacuum any visible oil prior to pumping permanent pool of water downstream. Yes No Yes No / / 20 Responsible Party: Measure depth of accumulated sediment Measured Depth = Pump out entire structure annually and remove sediment anytime depth exceeds 12” Note: Sediment depths in the sump over 18” dictate a more frequent cleaning regiment. Yes No / / 20 Responsible Party: Inspect contributing areas for plugged catch basins, erosion, trash, leaves, and debris. Check ground surface directly adjacent to the structure for sinkholes or depression areas Notify appropriate maintenance staff or property owner of need to sweep and/or remove litter/debris. Sink holes shall be filled and monitored for further depression. Yes No Yes No / / 20 Responsible Party: Inspect all visible structural components: Manholes, Castings, Snout Structure, Covers and pipe connections. Repair as able and note observations notifying maintenance foremen of any observed damage to structure, manholes, casings, snout structure and associated loose or missing bolts, blockages of inlets/outlets, etc. Yes No / / 20 Responsible Party:
Control Concepts BMP Maintenance and Inspection Specifications CBMH 20 PLAN VIEW DETAIL/PROFILE VIEW BMP ID: CBMH 20 Location: Curb line on east side of parking lot Description of Device: 48” Diameter precast manhole with a 3 foot sump. Flow enters the structure through the inlet grate and 12” HDPE pipe from the south where solids settle out in the sump with clean flow discharging into a 12” HDPE pipe on the west side of the structure. Structure Access: Through a standard catch basin inlet grate.
Control Concepts BMP Maintenance and Inspection Specifications BMP ID: Sump Storm Sewer Structure CBMH 20 Maintenance and Inspection Report Inspection Date Inspector: Inspection Activity Observations/Measurements Maintenance Maint. Required Actions Required/Date Completed/Responsible Foreman Inspection of structure for trash, debris, floatables and oil Remove any floatables, accumulated trash or debris with a dip net or vacuum. More frequent cleaning is necessary if floatables regularly exceed a depth of 1 ft. Vacuum any visible oil prior to pumping permanent pool of water downstream. Yes No Yes No / / 20 Responsible Party: Measure depth of accumulated sediment Measured Depth = Pump out entire structure annually and remove sediment anytime depth exceeds 12” Note: Sediment depths in the sump over 18” dictate a more frequent cleaning regiment. Yes No / / 20 Responsible Party: Inspect contributing areas for plugged catch basins, erosion, trash, leaves, and debris. Check ground surface directly adjacent to the structure for sinkholes or depression areas Notify appropriate maintenance staff or property owner of need to sweep and/or remove litter/debris. Sink holes shall be filled and monitored for further depression. Yes No Yes No / / 20 Responsible Party: Inspect all visible structural components: Manholes, Castings, Snout Structure, Covers and pipe connections. Repair as able and note observations notifying maintenance foremen of any observed damage to structure, manholes, casings, snout structure and associated loose or missing bolts, blockages of inlets/outlets, etc. Yes No / / 20 Responsible Party:
Control Concepts BMP Maintenance and Inspection Specifications CBMH 30 PLAN VIEW DETAIL/PROFILE VIEW BMP ID: CBMH 30 Location: Curb line on south side of building Description of Device: 48” Diameter precast manhole with a 3 foot sump. Flow enters the structure through the inlet grate and 12” HDPE pipe from the east where solids settle out in the sump with clean flow discharging into a 12” HDPE pipe on the northwest side of the structure. Structure Access: Through a standard catch basin inlet grate.
Control Concepts BMP Maintenance and Inspection Specifications BMP ID: Sump Storm Sewer Structure CBMH 30 Maintenance and Inspection Report Inspection Date Inspector: Inspection Activity Observations/Measurements Maintenance Maint. Required Actions Required/Date Completed/Responsible Foreman Inspection of structure for trash, debris, floatables and oil Remove any floatables, accumulated trash or debris with a dip net or vacuum. More frequent cleaning is necessary if floatables regularly exceed a depth of 1 ft. Vacuum any visible oil prior to pumping permanent pool of water downstream. Yes No Yes No / / 20 Responsible Party: Measure depth of accumulated sediment Measured Depth = Pump out entire structure annually and remove sediment anytime depth exceeds 12” Note: Sediment depths in the sump over 18” dictate a more frequent cleaning regiment. Yes No / / 20 Responsible Party: Inspect contributing areas for plugged catch basins, erosion, trash, leaves, and debris. Check ground surface directly adjacent to the structure for sinkholes or depression areas Notify appropriate maintenance staff or property owner of need to sweep and/or remove litter/debris. Sink holes shall be filled and monitored for further depression. Yes No Yes No / / 20 Responsible Party: Inspect all visible structural components: Manholes, Castings, Snout Structure, Covers and pipe connections. Repair as able and note observations notifying maintenance foremen of any observed damage to structure, manholes, casings, snout structure and associated loose or missing bolts, blockages of inlets/outlets, etc. Yes No / / 20 Responsible Party:
Control Concepts BMP Maintenance and Inspection Specifications CB 50 PLAN VIEW DETAIL/PROFILE VIEW BMP ID: CB 50 Location: Curb line on northwest side of parking lot Description of Device: 48” Diameter precast manhole with a 3 foot sump. Flow enters the structure through the inlet grate where solids settle out in the sump with clean flow discharging into a 12” HDPE pipe on the south side of the structure. Structure Access: Through a standard catch basin inlet grate.
Control Concepts BMP Maintenance and Inspection Specifications BMP ID: Sump Storm Sewer Structure CB 50 Maintenance and Inspection Report Inspection Date Inspector: Inspection Activity Observations/Measurements Maintenance Maint. Required Actions Required/Date Completed/Responsible Foreman Inspection of structure for trash, debris, floatables and oil Remove any floatables, accumulated trash or debris with a dip net or vacuum. More frequent cleaning is necessary if floatables regularly exceed a depth of 1 ft. Vacuum any visible oil prior to pumping permanent pool of water downstream. Yes No Yes No / / 20 Responsible Party: Measure depth of accumulated sediment Measured Depth = Pump out entire structure annually and remove sediment anytime depth exceeds 12” Note: Sediment depths in the sump over 18” dictate a more frequent cleaning regiment. Yes No / / 20 Responsible Party: Inspect contributing areas for plugged catch basins, erosion, trash, leaves, and debris. Check ground surface directly adjacent to the structure for sinkholes or depression areas Notify appropriate maintenance staff or property owner of need to sweep and/or remove litter/debris. Sink holes shall be filled and monitored for further depression. Yes No Yes No / / 20 Responsible Party: Inspect all visible structural components: Manholes, Castings, Snout Structure, Covers and pipe connections. Repair as able and note observations notifying maintenance foremen of any observed damage to structure, manholes, casings, snout structure and associated loose or missing bolts, blockages of inlets/outlets, etc. Yes No / / 20 Responsible Party:
Control Concepts BMP Maintenance and Inspection Specifications CB 60 PLAN VIEW DETAIL/PROFILE VIEW BMP ID: CB 60 Location: Curb line on northeast corner of parking lot Description of Device: 48” Diameter precast manhole with a 3 foot sump. Flow enters the structure through the inlet grate where solids settle out in the sump with clean flow discharging into a 12” HDPE pipe on the south side of the structure. Structure Access: Through a standard catch basin inlet grate.
Control Concepts BMP Maintenance and Inspection Specifications BMP ID: Sump Storm Sewer Structure CB 60 Maintenance and Inspection Report Inspection Date Inspector: Inspection Activity Observations/Measurements Maintenance Maint. Required Actions Required/Date Completed/Responsible Foreman Inspection of structure for trash, debris, floatables and oil Remove any floatables, accumulated trash or debris with a dip net or vacuum. More frequent cleaning is necessary if floatables regularly exceed a depth of 1 ft. Vacuum any visible oil prior to pumping permanent pool of water downstream. Yes No Yes No / / 20 Responsible Party: Measure depth of accumulated sediment Measured Depth = Pump out entire structure annually and remove sediment anytime depth exceeds 12” Note: Sediment depths in the sump over 18” dictate a more frequent cleaning regiment. Yes No / / 20 Responsible Party: Inspect contributing areas for plugged catch basins, erosion, trash, leaves, and debris. Check ground surface directly adjacent to the structure for sinkholes or depression areas Notify appropriate maintenance staff or property owner of need to sweep and/or remove litter/debris. Sink holes shall be filled and monitored for further depression. Yes No Yes No / / 20 Responsible Party: Inspect all visible structural components: Manholes, Castings, Snout Structure, Covers and pipe connections. Repair as able and note observations notifying maintenance foremen of any observed damage to structure, manholes, casings, snout structure and associated loose or missing bolts, blockages of inlets/outlets, etc. Yes No / / 20 Responsible Party:
Control Concepts BMP Maintenance and Inspection Specifications CB 70 PLAN VIEW DETAIL/PROFILE VIEW BMP ID: CB 70 Location: Curb line on northeast of loading dock area Description of Device: 48” Diameter precast manhole with a 3 foot sump. Flow enters the structure through the inlet grate where solids settle out in the sump with clean flow discharging into a 12” HDPE pipe on the southwest side of the structure. Structure Access: Through a standard catch basin inlet grate.
Control Concepts BMP Maintenance and Inspection Specifications BMP ID: Sump Storm Sewer Structure CB 70 Maintenance and Inspection Report Inspection Date Inspector: Inspection Activity Observations/Measurements Maintenance Maint. Required Actions Required/Date Completed/Responsible Foreman Inspection of structure for trash, debris, floatables and oil Remove any floatables, accumulated trash or debris with a dip net or vacuum. More frequent cleaning is necessary if floatables regularly exceed a depth of 1 ft. Vacuum any visible oil prior to pumping permanent pool of water downstream. Yes No Yes No / / 20 Responsible Party: Measure depth of accumulated sediment Measured Depth = Pump out entire structure annually and remove sediment anytime depth exceeds 12” Note: Sediment depths in the sump over 18” dictate a more frequent cleaning regiment. Yes No / / 20 Responsible Party: Inspect contributing areas for plugged catch basins, erosion, trash, leaves, and debris. Check ground surface directly adjacent to the structure for sinkholes or depression areas Notify appropriate maintenance staff or property owner of need to sweep and/or remove litter/debris. Sink holes shall be filled and monitored for further depression. Yes No Yes No / / 20 Responsible Party: Inspect all visible structural components: Manholes, Castings, Snout Structure, Covers and pipe connections. Repair as able and note observations notifying maintenance foremen of any observed damage to structure, manholes, casings, snout structure and associated loose or missing bolts, blockages of inlets/outlets, etc. Yes No / / 20 Responsible Party:
Control Concepts BMP Maintenance and Inspection Specifications 53” X 41” Perforated Arch CMP Infiltration System PLAN VIEW DETAIL/PROFILE VIEW BMP ID: 53” x 41” Arch CMP Infiltration System Location: Underground west drive aisle Description of Device: 53”x41” perforated arch CMP underground infiltration system. Flow enters the structure through four 12” inlet pipes on the northwest, northeast, southeast, and east sides of the system taking drainage from the driveway, parking areas, building, and underground detention system. An outlet at elevation 959.97’ is located on the north side of the system. Water below the outlet is designed to infiltrate into the underlying soil. Structure Access: Five 36” risers are provided for access points into the system.
Control Concepts BMP Maintenance and Inspection Specifications BMP ID: Storm Sewer Infiltration System 53” x 41” Arch CMP Infiltration System Maintenance and Inspection Report Inspection Date Inspector: Inspection Activity Observations/Measurements Maintenance Maint. Required Actions Required/Date Completed/Responsible Foreman Inspection of structure for trash, debris, floatables and oil Remove any floatables, accumulated trash or debris with a dip net or vacuum. More frequent cleaning is necessary if floatables regularly exceed a depth of 1 ft. Vacuum any visible oil prior to pumping permanent pool of water downstream. Yes No Yes No / / 20 Responsible Party: Visual inspection of accumulated sediment and presence of salt or other corrosive substances Remove sediment buildup as needed to maintain infiltration capacity. Remove or rinse the system as needed if salt or corrosive substances are present. Yes No / / 20 Responsible Party: Inspect contributing areas for plugged catch basins, erosion, trash, leaves, and debris. Check ground surface directly adjacent to the structure for sinkholes or depression areas Notify appropriate maintenance staff or property owner of need to sweep and/or remove litter/debris. Sink holes shall be filled and monitored for further depression. Yes No Yes No / / 20 Responsible Party: Inspect all visible structural components: Manholes, Castings, Covers and pipe connections. Repair as able and note observations notifying maintenance foremen of any observed damage to structure, manholes, casings and associated loose or missing bolts, blockages of inlets/outlets, etc. Yes No / / 20 Responsible Party: