Is anyone able to locate if there is a revised threshold for exemplary performance under v4.1 of this credit? My particular project is a non zero lot line

With the "retain on site" verbiage is there no longer an option to retain off-site?  I have a project in a development that previous buildings have met the LEED 2009 stormwater&

My project site is located in Seattle WA on a parcel of land created in 1916 when the level of Lake Washington was lowered 9 feet.

For our project a underground infiltration system is planned. Now we are wondering whether a underground infiltaration system counts as a LID practice?

Can anyone please confirm if the LEEDv4.1 version of this credit requires to treat run-off from pollution generating hard surfaces with LID?

Does pervious landscaping (grasses and trees) count toward LID area that retains water on site in accordance with the Rainfall Events Calculator Strategies tab? 

Is sedimentation filtration required for LID for this credit? 

We are building an early childhood education center next to the existing elementary school.

In both LEED BD+C: New Construction v4.1 and LEED BD+C: Healthcare v4.1, under Requirements in the credit language, USGBC uses the title text: "Percentile of Rainfall Events (1-3 points except Heal

If my project is v4 and choose to use the V4.1 path for rainwater management, does the new point scoring also take effect? Basically my project has a meet the 95th percentile under v4 but if I