Changes

*Trim back tree boughs that hang over the roof area to reduce maintenance needs.

*Trim back tree boughs that hang over the roof area to reduce maintenance needs.

|[[File:CDA Pass RWH.PNG|300px|thumb|center|CDA has not changed in size or land cover. Sediment, trash or debris is not accumulating and point sources of contaminants are not visible.]]  

|[[File:CDA Pass RWH.PNG|300px|thumb|center|CDA has not changed in size or land cover. Sediment, trash or debris is not accumulating and point sources of contaminants are not visible.]]  

|[[File:CDA Fail RWH.PNG|280px|thumb|center|Size of the CDA has changed from design assumptions. A point source for contaminants is visible (i.e. lack of sediment controls on adjacent construction site). (Photo Source: North Carolina Cooperative Extension)]]  

|[[File:CDA Fail RWH.PNG|280px|thumb|center|Sediment and debris is accumulating on the CDA due to deteriorating roof shingles. Eavestroughs need cleaning.]]  

|-

|-

|'''[[Pretreatment]]'''

|'''[[Pretreatment]]'''

*Remove trash, debris and sediment biannually to quarterly or when the device sump is half full;

*Remove trash, debris and sediment biannually to quarterly or when the device sump is half full;

*Measure sediment depth or volume during each cleaning, or annually to estimate accumulation rate and optimize frequency of maintenance.  

*Measure sediment depth or volume during each cleaning, or annually to estimate accumulation rate and optimize frequency of maintenance.  

|[[File:Pretreatment Pass RWH.PNG|310px|thumb|center|[[Forebay]] is free of sediment, trash and debris and recently maintained. The large stones in the feature are used to slow down and spread out inflowing water into the feature and they remain well arranged and in place.]]  

|[[File:Pretreatment Pass RWH.PNG|310px|thumb|center|The pretreatment filter of the cistern is free of sediment and debris.]]  

|[[File:Pretreatment Fail RWH.PNG|290px|thumb|center|An erosion gully occurring where bare soil is starting to become visible on the [[Vegetated filter strips|grass filter strip]] pretreatment feature at the inlet, thus indicating it is not effectively slowing and spreading out the inflow of stormwater to the BMP.]]  

|[[File:Pretreatment Fail RWH.PNG|290px|thumb|center|The pretreatment filter on the roof downspout is partially covered by debris which could prevent stormwater from freely entering the BMP (Source: DMR).]]  

|-

|-

|'''[[Inlets]]'''

|'''[[Inlets]]'''

*For outdoor above-ground cisterns and rain barrels, inlets need to be disconnected in the late fall/early winter, prior to the onset of freezing air temperatures;

*For outdoor above-ground cisterns and rain barrels, inlets need to be disconnected in the late fall/early winter, prior to the onset of freezing air temperatures;

*Reconnect outdoor above-ground cisterns to the roof drainage area in the spring once air temperature remains above freezing.

*Reconnect outdoor above-ground cisterns to the roof drainage area in the spring once air temperature remains above freezing.

|[[File:Inlets Pass RWH.PNG|285px|thumb|center|There is no evidence of damage or displacement of the inlet structure that would prevent runoff from freely entering the BMP.]]  

|[[File:Inlets Pass RWH.PNG|285px|thumb|center|Inlet pipe and couplings are securely connected to the CDA and cistern. (Source: Lake County SMC)]]  

|[[File:Inlets Fail RWH.PNG|300px|thumb|center|Accumulated sediment and vegetation is preventing stormwater from entering the BMP. Sediment on the pavement surface in front of the inlet indicates ponding is also occurring]]  

|[[File:Inlets Fail RWH.PNG|300px|thumb|center|The roof downspout is disconnected from the eavestrough, preventing runoff from entering the cistern. ]]  

|-

|-

|'''Access Hatch'''

|'''Access Hatch'''

|

|

*Inspect for damage, obstruction and accessibility annually.

*Inspect for damage, obstruction and accessibility annually.

|[[File:Access Hatch Pass RWH.PNG|305px|thumb|center|The footprint area of the bioretention cell does not significantly deviate from the final design and should not negatively affect its stormwater management treatment performance.]]  

|[[File:Access Hatch Pass RWH.PNG|305px|thumb|center|The access hatch of this cistern is accessible with ladder rungs in place.]]  

|[[File:Access Hatch Fail RWH.PNG|300px|thumb|center|The footprint area of the BMP is significantly smaller than what was specified in the final design of this example and differ greater than the recommended SWM criteria requirements (>10%).]]  

|[[File:Access Hatch Fail RWH.PNG|300px|thumb|center|The access hatch of this cistern was paved over with concrete and ladder rungs are missing which prevents safe entry for inspection and maintenance tasks. (Source: Miles Golding).]]  

|-

|-

|'''[[Rain barrels|Cistern or rain barrel]]'''

|'''[[Rain barrels|Cistern or rain barrel]]'''

*Inspect for damage or leaking annually;

*Inspect for damage or leaking annually;

*Drain and remove accumulated sediment as needed (annually at a minimum).

*Drain and remove accumulated sediment as needed (annually at a minimum).

|[[File:Cistern Pass RWH.PNG|295px|thumb|center|There are no erosion gullies or bare soil areas on the filter bed surface and mulch cover remains in place.]]  

|[[File:Cistern Pass RWH.PNG|295px|thumb|center|There are no cracks or leaks visible in the cistern structure.]]  

|[[File:Cistern Fail RWH.PNG|300x200px|thumb|center|Erosion gullies and bare soil areas are present on the filter bed surface, indicating that concentrated flow occurs regularly into the BMP feature. (Photo Source: CVC).]]  

|[[File:Cistern Fail RWH.PNG|300x200px|thumb|center|A section of sealing tape over two pieces of the concrete cistern structure is displaced, raising the potential for leaks in the future.]]  

|-

|-

|'''[[Rainwater harvesting: Sizing and modeling#Cistern dimensions|Pump]]'''

|'''[[Rainwater harvesting: Sizing and modeling#Cistern dimensions|Pump]]'''

|

|

*Remove debris and sediment biannually to quarterly or as directed by the system manufacturer.

*Remove debris and sediment biannually to quarterly or as directed by the system manufacturer.

|[[File:Filter Pass RWH.PNG|320px|thumb|center|The overflow outlet is free of damage and obstruction and functions as originally designed.]]  

|[[File:Filter Pass RWH.PNG|320px|thumb|center|Very little sediment and no coarse debris has accumulated on the bottom of the cistern and the sediment is not at the level of the distribution system intake structure.]]  

|[[File:Filter Fail RWH.PNG|280px|thumb|center|The overflow outlet is partially obstructed with trash and debris which reduces its capacity to safely convey excess water from the BMP, likely due to excess ponding thus obstructing outflow and impairing overall drainage function of the BMP.]]  

|[[File:Filter Fail RWH.PNG|280px|thumb|center|Enough sediment has accumulated in the cistern to cause water delivered from the distribution system to be turbid and discoloured when cistern water levels are low. Intake filyrt must be checked and changed.]]  

|-

|-

|'''[[Overflow|Overflow Outlet]]'''

|'''[[Overflow|Overflow Outlet]]'''

|

|

*Check for [[clogging|obstructions]] and remove any debris or sediment annually to biannually.

*Check for [[clogging|obstructions]] and remove any debris or sediment annually to biannually.

|[[File:Outlets Pass RWH.PNG|340px|thumb|center|The well is undamaged and accessible and the cap is in place and secured to prevent unauthorized access.]]  

|[[File:Outlets Pass RWH.PNG|340px|thumb|center|The overflow outlet pipe diameter matches what was specified in the final design and is free of damage and obstruction.]]  

|[[File:Outlets Fail RWH.PNG|300px|thumb|center|The well standpipe has been damaged by snow plowing, which impairs its use for monitoring and is a safety hazard. With the cap unable to be secured unauthorized access can also occur.]]  

|[[File:Outlets Fail RWH.PNG|300px|thumb|center|The overflow outlet pipe on this rain barrel is undersized and obstructed which impairs its function to safely convey excess water from the BMP. (Source: Melinda Webb)]]  

|}

|}