Weather: 21°C, sun and clouds Workers onsite: Unknown
Work done today:
I’m not sure!
I heard what sounded like work being done on a patio, but I could not see any workers onsite. In mid-afternoon a purple pickup was parked inside the fencing of the emergency repair area and a man was walking across the site, possibly inspecting it.
Weather: 15°C, showers and clouds Workers onsite: At least 3
Work done today:
Work began on the removal of the sidewalk section at the east end of the emergency repair area.
Work was done to remove membrane on the patio closest to the 244 building main entrance.
The work on the sidewalk is to allow the new membrane to go underneath, creating a proper seal. This was not done in the original design.
Despite working most of the day (and past the 6 p.m. cut-off), the small electric jackhammer used didn’t allow the workers to get much done, as seen below.
Small section of sidewalk chiseled away.Another section of sidewalk dug out.
Work was also done to remove membrane from the below patio. For some reason, workers elected to use hand scrapers to manually pull the membrane off, rather than the more efficient machines on hand.
Lower section of patio showing some membrane removal.
Weather: 18°C, showers and clouds Workers onsite: At least 3
Work done today:
More grinding of the concrete slab in front of the 244 building, starting around 7:45 a.m.
Several residents reported water leaking into the underground parking. I investigated, as did the Council President. Our findings are below.
First, the water:
The majority of the water was coming from one pipe in the ceiling.
This area of the parkade corresponds directly with the exposed concrete slab above in front of the 244 building. There are three drains in the area:
One drain that was embedded in the gravel near the building
One drain that was embedded in the soil/garden patch near the fire exit
One drain that was embedded under the planter
All three drains were completely clogged with dirt.
When the membrane was stripped from the concrete slab in the past few days, the watertight seal around each drain was opened up. Before the membrane was removed, most water would not have gone down these drains, due to them being plugged with dirt, and instead would have flowed elsewhere–which is why water often pooled around the 244 building entrance.
With the watertight seal/membrane removed, water is now free to pour down the outside of the drain piping, in the gap between the pipe and the concrete, through the part that the membrane normally cover. Again, because the drains were plugged, the water had nowhere else to go.
This lead to a lot of water coming into the parkade today when rain showers passed through the area.
It’s hard to see in the shot below, but there is water actively dripping out from around the drain pipe.
The main culprit was the drain that had been buried under the planter:
Before efforts to unclog the drain began.
Because it was plugged with dirt and gravel, it quickly filled up, then water started pouring through where the membrane would have stopped it.
After work with a pressure washer and digging out gravel by hand, the drain was eventually cleared:
Below, the gravel that was removed, plus some of the dirt that had come back up as the pipe was cleared:
A second drain was also cleared. The one nearest to the fire exit did not appear to be leaking, likely due to its location and was left as is.
With the two drains cleared, further showers should see most of the water going down the drains as intended, though some will still leak through the edges until the membrane is replaced.
Below is a drain cover. This normally keeps gravel out, so why was gravel found in the two drains that were cleared?
There is no way to know 100% for certain, but the likeliest answer is drain covers were removed to prepare the concrete slab for work, then when the gravel was moved out of the area, some of it spilled into the exposed drains. All gravel was found on top of the dirt.
There are a few issues here:
Apparently no one checked to see what the potential impact would be of these drains leaking once the membrane was removed. This is important because in this case, the water leaked onto an area of the underground parking where no vehicles were parked, but this is unlikely to be the case for every drain in the parking lot and central courtyard area.
If the water had fallen onto a vehicle, it could have potentially caused damage, as there may be material mixed in with the dirt/gravel that could be corrosive or otherwise harmful to automotive paint.
For now, water leaks should be much less severe. The forecast is calling for intermittent showers over the next three days, so we’ll be monitoring to see how well the drains manage now that two have been opened up.
Fencing added to protect patio near existing protective barrier for trees
Fencing added around the C can
Safety sign erected on east side of driveway entrance
Further clearing of the Phase 1 area in front of the 244 building, including stripping and removal of membrane
Fencing on right added to protect patios, due to narrow pathway leading to easement.Fencing added around C can, possibly to protect the wooden blocks supporting the one end.Basic site rules sign. These are for the workers, not residents.The expanded and mostly cleared area in front of the 244 building.This planter next to the 248 building still needs to be removed, as the work area comes up to the edge of the 248 building.Fun Fact 1: This drain was underneath the planter to the right of the 244 building entrance. It was clogged full of dirt and useless. A new drain (outside the planter) will be put in that will alleviate water pooling.Fun Fact 2: A lot of the patios are half concrete/half wood. This was done to save money at the time of construction. The wood part is where the “hole” is in this photo.