Public Inspection and Maintenance Checklist Sand Filters (Above Ground/Open)

Transcription

1 Public Inspection and Checklist Sand Filters (Above Ground/Open) Sediment Accumulation on top layer* Trash and Debris Sediment/ Debris in Clean-Outs* Sand Filter Media* Prolonged Flows Short Circuiting Erosion Damage to Slopes Rock Pad Missing or Out of Place Flow Spreader* Damaged Pipes Sediment depth exceeds 1/2-inch. Trash and debris accumulated on sand filter bed. When the clean-outs become full or partially plugged with sediment and/or debris. Drawdown of water through the sand filter media takes longer than 24-hours, and/or flow through the overflow pipes occurs frequently. Sand is saturated for prolonged periods of time (several weeks) and does not dry out between storms due to continuous base flow or prolonged flows from detention facilities. When flows become concentrated over one section of the sand filter rather than dispersed. Erosion over 2-inches deep where cause of damage is prevalent or potential for continued erosion is evident. Soil beneath the rock is visible. Flow spreader uneven or clogged so that flows are not uniformly distributed across sand filter. Any part of the piping that is crushed or deformed more than 20% or any other failure to the piping. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day. F:\Sc42\Sc42-24\Bellevue, WA\Inspection Forms\Public AG Sand Filters Inspect Chklst.doc

2 Public Inspection and Checklist Baffle Oil/Water Separators (Api Type) Monitoring Sediment Trash and Debris Oil Damaged Pipes Access Cover Damaged/Not Working Vault Structure Damage Includes Cracks in Walls Bottom, Damage to Frame and/or Top Slab Baffles Access Ladder Damaged Inspection of discharge water for obvious signs of poor water quality. Sediment depth in bottom of vault exceeds 6-inches in depth. Trash and debris accumulation in vault, or pipe inlet/outlet, floatables and non-floatables. Oil accumulations that exceed 1-inch, at the surface of the water. Inlet or outlet piping damaged or broken and in need of repair. Cover cannot be opened, corrosion/deformation of cover. Cracks wider than 1/2-inch or evidence of soil particles entering the structure through the cracks, or maintenance/inspection personnel determine that the vault is not structurally sound. Cracks wider than 1/2-inch at the joint of any inlet/outlet pipe or evidence of soil particles entering through the cracks. Baffles corroding, cracking, warping and/or showing signs of failure as determined by maintenance/inspection person. Ladder is corroded or deteriorated, not functioning properly, not securely attached to structure wall, missing rungs, cracks, and misaligned. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

3 Public Inspection and Checklist Sand Filters (Below Ground/Enclosed) Sediment Accumulation on Sand Media Section* Sediment Accumulation in Pre-Settling Portion of Vault* Trash/Debris Sediment in Drain Pipes/Cleanout s* Short Circuiting Damaged Pipes Access Cover Damaged/Not Working Ventilation Vault Structure Damaged; Includes Cracks in Walls, Bottom, Damage to Frame and/or Top Slab Sediment depth exceeds 1/2-inch. Sediment accumulation in vault bottom exceeds the depth of the sediment zone plus 6-inches. Trash and debris accumulated in vault, or pipe inlet/outlet, floatables and non-floatables. When drain pipes, cleanouts become full with sediment and/or debris. When seepage/flow occurs along the vault walls and corners. Sand eroding near inflow area. Inlet or outlet piping damaged or broken and in need of repair. Cover cannot be opened, corrosion/deformation of cover. person cannot remove cover using normal lifting pressure. Ventilation area blocked or plugged Cracks wider than 1/2-inch or evidence of soil particles entering the structure through the cracks, or maintenance/inspection personnel determine that the vault is not structurally sound. Cracks wider than 1/2-inch at the joint of any inlet/outlet pipe or evidence of soil particles entering through the cracks. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

4 Baffles/Internal walls Access Ladder Damaged Baffles or walls corroding, cracking, warping and/or showing signs of failure as determined by maintenance/inspection person. Ladder is corroded or deteriorated, not functioning properly, not securely attached to structure wall, missing rungs, cracks, and misaligned. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

5 Public Inspection and Checklist Biofiltration Swale Sediment Accumulation on Grass* Standing Water Flow spreader* Constant Baseflow Poor Vegetation Coverage* Vegetation* Excessive Shading Inlet/Outlet* Trash and Debris Erosion/Scouring* Sediment depth exceeds 2 inches. When water stands in the swale between storms and does not drain freely. Flow spreader uneven or clogged so that flows are not uniformly distributed through entire swale width. When small quantities of water continually flow through the swale, even when it has been dry for weeks, and an eroded, muddy channel has formed in the swale bottom. When grass is sparse or bare or eroded patches occur in more than 10% of the swale bottom. When the grass becomes excessively tall (greater than 10- inches); when nuisance weeds and other vegetation starts to take over. Grass growth is poor because sunlight does not reach swale. Inlet/outlet areas clogged with sediment and/or debris. Trash and debris accumulated in the bioswale. Eroded or scoured swale bottom due to flow channelization, or higher flows. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

6 Public Inspection and Checklist Catchbasin Inserts Sediment Trash and Debris Media Insert Not Removing Oil* Media Insert Water Saturated* Media Insert-Oil Saturated* Media Insert Use Beyond Normal Product Life* When sediment forms a cap over the insert media of the insert and/or unit. Trash and debris accumulates on insert unit creating a blockage/restriction. Effluent water from media insert has a visible sheen. Catch basin insert is saturated with water and no longer has the capacity to absorb. Media oil saturated due to petroleum spill that drains into catch basin. Media has been used beyond the typical average life of media insert product. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

7 Public Inspection and Checklist Catch Basins, Manholes, and Inlets Trash & Debris* Sediment* Structure Damage to Frame and/or Top Slab Fractures or Cracks in Basin Walls/ Bottom Trash or debris which is located immediately in front of the catch basin opening or is blocking inletting capacity of the basin by more than 10%. Trash or debris (in the basin) that exceeds 60 percent of the sump depth as measured from the bottom of basin to invert of the lowest pipe into or out of the basin, but in no case less than a minimum of six inches clearance from the debris surface to the invert of the lowest pipe. Trash or debris in any inlet or outlet pipe blocking more than 1/3 of its height. Dead animals or vegetation that could generate odors that could cause complaints or dangerous gases (e.g., methane). Sediment (in the basin) that exceeds 60 percent of the sump depth as measured from the bottom of basin to invert of the lowest pipe into or out of the basin, but in no case less than a minimum of 6 inches clearance from the sediment surface to the invert of the lowest pipe. Top slab has holes larger than 2 square inches or cracks wider than 1/4 inch. Frame not sitting flush on top slab, i.e., separation of more than 3/4 inch of the frame from the top slab. Frame not securely attached person judges that structure is unsound. Grout fillet has separated or cracked wider than 1/2 inch and longer than 1 foot at the joint of any inlet/outlet pipe or any evidence of soil particles entering catch basin through cracks. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

8 Settlement/ Misalignment Vegetation Contamination and Pollution Catch Basin Cover Cover Not in Place Locking Mechanism Not Working Cover Difficult to Remove Ladder Ladder Rungs Unsafe Metal Grates (If Applicable) Grate opening Unsafe Trash and Debris Damaged or Missing. If failure of basin has created a safety, function, or design problem. Vegetation growing across and blocking more than 10% of the basin opening. Vegetation growing in inlet/outlet pipe joints that is more than six inches tall and less than six inches apart. Any evidence of oil, gasoline, contaminants or other pollutants. Cover is missing or only partially in place. Any open catch basin requires maintenance. Mechanism cannot be opened by one maintenance person with proper tools. Bolts into frame have less than 1/2 inch of thread. One maintenance person cannot remove lid after applying normal lifting pressure. (Intent is keep cover from sealing off access to maintenance.) Ladder is unsafe due to missing rungs, not securely attached to basin wall, misalignment, rust, cracks, or sharp edges. Grate with opening wider than 7/8 inch. Trash and debris that is blocking more than 20% of grate surface inletting capacity. Grate missing or broken member(s) of the grate. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

9 Public Inspection and Checklist Control Structure/Flow Restrictor Trash and Debris (Includes Sediment)* Structural Damage Cleanout Gate Damaged or Missing Orifice Plate Damaged or Missing Obstructions* Overflow Pipe Obstructions* Manhole Cover Not in Place Material exceeds 25% of sump depth or 1 foot below orifice plate. Structure is not securely attached to manhole wall. Structure is not in upright position (allow up to 10% from plumb). Connections to outlet pipe are not watertight and show signs of rust. Any holes other than designed holes--in the structure. Cleanout gate is not watertight or is missing. Gate cannot be moved up and down by one maintenance person. Chain/rod leading to gate is missing or damaged. Gate is rusted over 50% of its surface area. Control device is not working properly due to missing, out of place, or bent orifice plate. Any trash, debris, sediment, or vegetation blocking the plate. Any trash or debris blocking (or having the potential of blocking) the overflow pipe. Cover is missing or only partially in place. Any open manhole requires maintenance. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

10 Locking Mechanism Not Working Cover Difficult to Remove Ladder Rungs Unsafe Catch Basin See Catch Basins Mechanism cannot be opened by one maintenance person with proper tools. Bolts into frame have less than 1/2 inch of thread (may not apply to self-locking lids). One maintenance person cannot remove lid after applying normal lifting pressure. Intent is to keep cover from sealing off access to maintenance. Ladder is unsafe due to missing rungs, misalignment, not securely attached to structure wall, rust, or cracks. See Catch Basins : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

11 Public Inspection and Checklist Conveyance Systems (Pipes & Ditches) Pipes Sediment & Debris* Vegetation Damaged Pipe Open Ditches Trash & Debris* Sediment* Vegetation Erosion Damage to Slopes and Channel Bottom* Rock Lining Out of Place or Missing (If Applicable). Accumulated sediment that exceeds 20% of the diameter of the pipe. Vegetation that reduces free movement of water through pipes. Protective coating is damaged; rust is causing more than 50% deterioration to any part of pipe. Any dent that decreases the cross section area of pipe by more than 20% or puncture that impacts performance. Trash and debris > 5 cf/1,000 sf (one standard size garbage can) Visual evidence of dumping Accumulated sediment that exceeds 20% of the design depth. Vegetation that reduces free movement of water through ditches. Eroded damage over 2 inches deep where cause of damage is still present or where there is potential for continued erosion. Any erosion observed on a compacted berm embankment. person can see native soil beneath the rock lining. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

12 Public Inspection and Checklist Coalescing Plate Oil/Water Separators Monitoring Sediment Trash and Debris Oil Damaged Coalescing Plates Damaged Pipes Baffles Vault Structure Damage - Includes Cracks in Walls, Bottom, Damage to Frame and/or Top Slab Access Ladder Damaged Inspection of discharge water for obvious signs of poor water quality. Sediment depth in bottom of vault exceeds 6-inches in depth and/or visible signs of sediment on plates. Trash and debris accumulated in vault, or pipe inlet/outlet, floatables and non-floatables. Oil accumulation that exceeds 1-inch at the water surface. Plate media broken, deformed, cracked and/or showing signs of failure. Inlet or outlet piping damaged or broken and in need of repair. Baffles corroding, cracking, warping and/or showing signs of failure as determined by maintenance/inspection person. Cracks wider than 1/2-inch or evidence of soil particles entering the structure through the cracks, or maintenance/inspection personnel determine that the vault is not structurally sound. Cracks wider than 1/2-inch at the joint of any inlet/outlet pipe or evidence of soil particles entering through the cracks. Ladder is corroded or deteriorated, not functioning properly, not securely attached to structure wall, missing rungs, cracks, and misaligned. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

13 Public Inspection and Checklist Culverts Structural Condition Sediment & debris Vegetation blockage Pipe damage Headwall damage Accumulated sediment & debris exceeds 20% of the pipe diameter. Flow into or through the culvert is impeded. Corrosion affecting more than 50% of wall area. Bent or crushed ends. Large dents that reduce pipe crosssection by more than 20%. Cracks or holes that allow ground water seepage. Cracks >0.5 inches wide, buckled/bulging headwall, erosion behind or around ends of headwall. Fish Passage (culverts on streams) Minimum flow depth Downstream pipe end (culvert outlet) Drop height (downstream end) Upstream pipe end (culvert inlet) <12 inches during low flow conditions Pool depth in stream immediately below culvert less than 1.25 times the culvert drop height. Vertical distance between pipe invert and downstream water surface > 12 inches Channel bottom immediately upstream of culvert less than 1 foot below the culvert inlet. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

14 Public Inspection and Checklist Detention Ponds Trash & Debris* Poisonous Vegetation and noxious weeds Contaminants and Pollution Rodent Holes* Beaver Dams* Insects Tree/Brush Growth and Hazard Trees Side Slopes Erosion* Storage Area Sediment* Liner (If Applicable) Trash and debris >1 cf/1,000 sf (one standard size garbage can) Visual evidence of dumping Poisonous or nuisance vegetation or noxious weeds: morning glory, English ivy, reed canary grass, Japanese knotweed, purple loosestrife, blackberry, Scotch broom, poison oak, stinging nettles, or devil s club Any evidence of oil, gasoline, contaminants or other pollutants Any evidence of rodent holes if facility is acting as a dam or berm, or any evidence of water piping through dam or berm via rodent holes Dam results in change or function of the facility Insects such as wasps and hornets interfere with maintenance activities. Growth does not allow maintenance access or interferes with maintenance activity Dead, diseased, or dying trees Eroded over 2 in. deep where cause of damage is still present or where there is potential for continued erosion. Any erosion on a compacted berm embankment. Accumulated sediment >10% of designed pond depth or affects inletting or outletting condition of the facility. Liner is visible and has more than three 1/4-inch holes in it. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

15 Emergency Overflow/ Spillway and Berms Settlement* Tree Growth Piping* Emergency Overflow/ Spillway Erosion* Berm settlement 4 inches lower than the design elevation. Tree growth on berms or emergency spillway >4 ft in height or covering more than 10% of spillway. Discernable water flow through pond berm. Ongoing erosion with potential for erosion to continue. Only one layer of rock exists above native soil in area five square feet or larger, or any exposure of native soil at the top of out flow path of spillway. (Rip-rap on inside slopes need not be replaced.) See Side Slopes of Pond Debris Barriers (e.g., Trash Racks) Trash and Debris* Damaged/ Missing Bars Inlet/Outlet Pipe Fencing Missing or broken parts Erosion Damaged Parts Deteriorating Paint or Protective Coating Gates Damaged or missing member Trash or debris that is plugging more than 20% of the openings in the barrier. Bars are bent out of shape more than 3 inches. Bars are missing or entire barrier missing. Bars are loose and rust is causing 50% deterioration to any part of barrier. Debris barrier missing or not attached to pipe Any defect in the fence that permits easy entry to a facility. Erosion more than 4 inches high and inches wide permitting an opening under a fence. Damage to gate/fence, posts out of plumb, or rails bent more than 6 inches Part or parts that have a rusting or scaling condition that has affected structural adequacy. Missing gate or locking devices, broken or missing hinges, out of plum more than 6 inches and more than 1 foot out of design alignment, or missing stretcher bar, stretcher bands, and ties. Contact engineering ASAP. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

16 Public Inspection and Checklist Energy Dissipaters External Rock Pad Missing or Moved Rock Erosion Dispersion Trench Pipe Plugged with Sediment* Not Discharging Water Properly Perforations Plugged* Water Flows Out Top of Distributor Catch Basin* Receiving Area Over- Saturated* Internal Manhole/Chamber Worn or Damaged Post, Baffles, Side of Chamber Only one layer of rock exists above native soil in area five square feet or larger, or any exposure of native soil. Soil erosion in or adjacent to rock pad. Accumulated sediment that exceeds 20% of the design depth. Visual evidence of water discharging at concentrated points along trench (normal condition is a sheet flow of water along trench). Intent is to prevent erosion damage. Over 1/2 of perforations in pipe are plugged with debris and sediment. person observes or receives credible report of water flowing out during any storm less than the design storm or its causing or appears likely to cause damage. Water in receiving area is causing or has potential of causing landslide problems. Structure dissipating flow deteriorates to 1/2 of original size or any concentrated worn spot exceeding one square foot which would make structure unsound. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

17 Public Inspection and Checklist Filter Strips Sediment Accumulation on Grass* Vegetation* Trash and Debris Erosion/Scouring* Flow spreader* Sediment depth exceeds 2 inches. When the grass becomes excessively tall (greater than 10- inches); when nuisance weeds and other vegetation starts to take over. Trash and debris accumulated on the filter strip. Eroded or scoured areas due to flow channelization, or higher flows. Flow spreader uneven or clogged so that flows are not uniformly distributed through entire filter width. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

18 Public Inspection and Checklist Infiltration Basins, Trenches, And Swales Trash & Debris* Poisonous Vegetation and noxious weeds Contaminants and Pollution Rodent Holes* Storage Area Sediment* Filter Bags (if applicable) Filled with Sediment and Debris* Rock Filters Sediment and Debris Side Slopes of Pond Erosion* Trash and debris > 5 cf/1,000 sf (one standard size garbage can) Visual evidence of dumping Poisonous or nuisance vegetation or noxious weeds: morning glory, English ivy, reed canary grass, Japanese knotweed, purple loosestrife, blackberry, Scotch broom, poison oak, stinging nettles, or devil s club Any evidence of oil, gasoline, contaminants or other pollutants Any evidence of rodent holes if facility is acting as a dam or berm, or any evidence of water piping through dam or berm via rodent holes Water ponding in infiltration pond after rainfall ceases and appropriate time allowed for infiltration. Sediment and debris fill bag more than 1/2 full. By visual inspection, little or no water flows through filter during heavy rain storms. Eroded over 2 in. deep where cause of damage is still present or where there is potential for continued erosion. Any erosion on a compacted berm embankment. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

19 Emergency Overflow Spillway and Berms over 4 feet in height Tree Growth Piping* Emergency Overflow/ Spillway Erosion* Pre-settling Ponds and Vaults Facility or Sump Filled with Sediment and/or Debris* Tree growth on berms or emergency spillway >4 ft in height or covering more than 10% of spillway. Discernable water flow through pond berm. Ongoing erosion with potential for erosion to continue. Only one layer of rock exists above native soil in area five square feet or larger, or any exposure of native soil at the top of out flow path of spillway. (Rip-rap on inside slopes need not be replaced.) See Side Slopes of Pond 6" or designed sediment trap depth of sediment. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

20 Public Inspection and Checklist STORMFILTER Below Ground Vault Sediment Accumulation on Media* Sediment Accumulation in Vault* Sediment depth exceeds inches. Sediment depth exceeds 6-inches in first chamber. Trash/Debris Sediment in Drain Pipes or Cleanouts* Damaged Pipes Access Cover Damaged/Not Working Vault Structure Includes Cracks in Wall, Bottom, Damage to Frame and/or Top Slab Baffles Access Ladder Damaged Below Ground Cartridge Type Filter Media* Short Circuiting Trash and debris accumulated on compost filter bed. When drain pipes, clean-outs, become full with sediment and/or debris. Any part of the pipes that are crushed or damaged due to corrosion and/or settlement. Cover cannot be opened; one person cannot open the cover using normal lifting pressure, corrosion/deformation of cover. Cracks wider than 1/2-inch or evidence of soil particles entering the structure through the cracks, or maintenance/inspection personnel determine that the vault is not structurally sound. Cracks wider than 1/2-inch at the joint of any inlet/outlet pipe or evidence of soil particles entering through the cracks. Baffles corroding, cracking warping, and/or showing signs of failure as determined by maintenance/inspection person. Ladder is corroded or deteriorated, not functioning properly, not securely attached to structure wall, missing rungs, cracks, and misaligned. Drawdown of water through the media takes longer than 1 hour and/or overflow occurs frequently. Flows do not properly enter filter cartridges. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

21 Public Inspection and Checklist Vaults, Tanks, and Pipes Storage Area Debris and Sediment* Joints Between Tank/Pipe Section Tank Pipe Bent Out of Shape Vault Structure Includes Cracks in Wall, Bottom, Damage to Frame and/or Top Slab Accumulated sediment depth exceeds 10% of the diameter of the storage area for 1/2 length of storage vault or any point depth exceeds 15% of diameter. (Example: 72-inch storage tank would require cleaning when sediment reaches depth of 7 inches for more than 1/2 length of tank.) Any openings or voids allowing material to be transported into facility. (Will require engineering analysis to determine structural stability). Any part of tank/pipe is bent out of shape more than 10% of its design shape. (Review required by engineer to determine structural stability). Cracks wider than 1/2-inch and any evidence of soil particles entering the structure through the cracks, or maintenance/inspection personnel determines that the vault is not structurally sound. Cracks wider than 1/2-inch at the joint of any inlet/outlet pipe or any evidence of soil particles entering the vault through the walls. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

22 Storage Area Cover Not in Place Locking Mechanism Not Working Cover Difficult to Remove Ladder Rungs Unsafe Catch Basins See Catch Basins Cover is missing or only partially in place. Any open manhole requires maintenance. Mechanism cannot be opened by one maintenance person with proper tools. Bolts into frame have less than 1/2 inch of thread (may not apply to self-locking lids). One maintenance person cannot remove lid after applying normal lifting pressure. Intent is to keep cover from sealing off access to maintenance. Ladder is unsafe due to missing rungs, misalignment, not securely attached to structure wall, rust, or cracks. See Catch Basins : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

23 Public Inspection and Checklist Wet Biofiltration Swale Sediment Water Depth Wetland Vegetation* Inlet/Outlet* Trash and Debris Erosion/Scouring* Sediment depth exceeds 2-inches in 10% of the swale treatment area. Water not retained to a depth of about 4 inches during the wet season. Vegetation becomes sparse and does not provide adequate filtration OR vegetation is crowded out by very dense clumps of cattail, which do not allow water to flow through the clumps. Inlet/outlet area clogged with sediment and/or debris. Trash and debris accumulated in the bioswale. Swale has eroded or scoured due to flow channelization, or higher flows. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

24 Public Inspection and Checklist Wetponds Water level First cell is empty, doesn't hold water. Trash and Debris* Inlet/Outlet Pipe* Sediment Accumulation in Pond Bottom* Oil Sheen on Water Erosion* Settlement of Pond Dike/Berm* Internal Berm Overflow Spillway Accumulation that exceeds 1 CF per 1000-SF of pond area. Inlet/Outlet pipe clogged with sediment and/or debris material. Sediment accumulations in pond bottom that exceeds the depth of sediment zone plus 6-inches, usually in the first cell. Prevalent and visible oil sheen. Erosion of the pond s side slopes and/or scouring of the pond bottom, that exceeds 6-inches, or where continued erosion is prevalent. Any part of these components that has settled 4-inches or lower than the design elevation, or inspector determines dike/berm is unsound. Berm dividing cells should be level. Rock is missing and soil is exposed at top of spillway or outside slope. Debris Barriers (e.g., Trash Racks) Trash and Debris* Damaged/ Missing Bars Inlet/Outlet Pipe Trash or debris that is plugging more than 20% of the openings in the barrier. Bars are bent out of shape more than 3 inches. Bars are missing or entire barrier missing. Bars are loose and rust is causing 50% deterioration to any part of barrier. Debris barrier missing or not attached to pipe : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.

25 Fencing Missing or broken parts Erosion Damaged Parts Deteriorating Paint or Protective Coating Gates Damaged or missing member Any defect in the fence that permits easy entry to a facility. Erosion more than 4 inches high and inches wide permitting an opening under a fence. Damage to gate/fence, posts out of plumb, or rails bent more than 6 inches Part or parts that have a rusting or scaling condition that has affected structural adequacy. Missing gate or locking devices, broken or missing hinges, out of plum more than 6 inches and more than 1 foot out of design alignment, or missing stretcher bar, stretcher bands, and ties. : Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.