In the backyard would be substantially

more grading work, site work, erosion control mitigation during the construction process.

Um and it does not do anything to slow the water down.

So from a from a technical standpoint, I think the wall actually will help long term with the erosion control because it's going

to

slow the w runoff down the slope and down the hill.

Um so we did talk about that as an option.

Um and obviously that is an option that the board can consider um rather than allowing for the wall.

Um but we as a as a landscape architect, I felt that the wall long term as long as as long as the variance was granted is a better solution because it will slow the water run runoff down the slope.

It would probably be about a 30% slope from the back for the house down to the creek, which is a very difficult um slope to try to maintain for turf and and generally just run runoff.

When you get that kind of runoff, and keep in mind this house is of an age where there's no um stormwater mitigation like there is required today, so there's just downspouts at daylight.

So all this water just running down the slope would blow out mulch, and it would also be difficult to maintain um in terms of mowing a slope besting.

Thank

you.

Is there a timeline for the revegitation?

Um well there there there is and there isn't.

So the city gives the homeowner uh a reasonable window of time to execute the um the buffer revegetation plan.

Um

the city acknowledges that it can be tough to to plant new plant material in the summertime.

We're going into the winter time, which is ideal for this to happen.

So in order for this project to be able to be closed

out,

um the the buffer revegetation work will have to coincide with the wall work.

So

the

homeowners are ready to put this past them and we're prepared to execute the project and its completeness um all at one time under the same window of the permit being open.

Member Howe.

Just two questions regarding erosion control.

The city has offered uh two solutions at the wall, one being a a trench and a French drain.

Any suggestion at this point as to which way you would uh mitigate any erosion control by the by the wall?

Well, I I want to follow up with Mr.

Ansbury um after after this this hearing.

Um because we are proposing

a

substantial amount of buffer revegetation plantings below the wall, uh I I my mind tends to think maybe doing uh setting up a situation where more of like a rain garden at the base of the wall versus something that's considered considered a vegetative BMP, whereas a uh modified French drain is more of a mechanical BMP, um potato potato.

after after this this hearing um because we are proposing a substantial amount of buffer revegetation plantings below the wall uh I I my mind tends to think maybe doing uh setting up a situation where more of like a rain garden at the base of the wall versus something so that's considered considered a vegetative BMP whereas a uh modified French drain is more of a mechanical BMP um potato potato but the um the rain garden setup would be where we basically grade a natural depression in the ground where the landscaping will be and that is um I think that coincides well with a buffer revegetation plan this is the kind of thing the all you know rain gardens are the kinds of implements you would see in association with uh repairing and revegetation plans and then in terms of the uh the uh roof runoff is looks like there'll be some a solution up to be provided there as well any ideas there in terms of from the president so we have we have essentially two options on how to deal with that one is that the what we're going to have to regrade the the area of land between the retaining wall and the house and that area will become more level part of the city's requirements from an engineering standpoint with constructing a retaining wall is we're gonna have to install drainage on the high side of the retaining wall so um that drainage system will effectively capture the runoff from the house downspouts and convey that water either around or through the wall and then that would thereby be directed into the stormwater quality system that we're gonna have to implement.

And and you're aware that there are conditions of the variances granted and so are you and the are the homeowners agreeing to those conditions

yes

they are agreeing.

Okay and am I correct this you're the city engineer yes can you speak to what um the representative for the applicant was talking about the rain garden versus the um drain that was recommended

in essence my my

comment um was geared towards

there we go um my comment was geared towards providing that infiltration practice of some sort um I would from a professional standpoint I would consider a rain garden which provides infiltration um obviously as as you guys know the buffer is there to filter pollution um provide some flood control which this property has flood boundaries on it um shaded zone X and possibly future conditions so um anything that infiltrates water will help with those things um providing for cleaner water downstream and things of that nature um a rain garden would essentially be equivalent to a French drain um as Bill said potato potato there they're both practices it'll will allow water to infiltrate into the ground instead of just running off into the into the um creek um and stream um in addition that the practices or the revegetation will assist with that as well and help accomplish what the buffers are there for you know we've we've got them and they're classified as undisturbed so that it does provide all those benefits to our surface water and runoff so we don't have to spend as much to treat it and and all of those things so I I would be fine with approving a rain garden versus dry wells or modified French drain.

So are you um in favor of the of conditions that say um

you

have the French drain and that was one of the conditions or a rain garden?

I would be fine with that

okay

all right I I would sorry to interrupt but I would be I would be it would be sufficient to me to change the wording to provide an infiltration best management practice.

Okay.

Um instead of instead of specifying specific practices okay um because when we give variance conditions those are the conditions that um must be adhered to okay any other questions you may be seated sir thank you thank you is is there a motion everyone know that their heads at the any other discussion no okay can you pull can you pull up the can um madam clerk can you pull up what the conditions were I guess that's probably what needs to be clear but then we can all see okay um can we get a motion I make a motion to approve uh variance V 2561 under the conditions listed and changing the word to instead of uh let's see what were the actual words in infiltration the uh trench and uh French drain to best practices is that what I'm hearing best management practices infiltration best management practices infiltration best management practices with just changing that word you get the rest of the with the rest staying as as listed is there is there a second second all those in favor say aye I aye chair votes aye it's unanimous moving on to ongoing business is there any additional ongoing business um well I'm not sure if it's ongoing or the next one I just you know want to plug our next chapter as usual yes we're in October and so we have a new question of demands related to housing it's online and we also have our third public

Chair votes aye, it's unanimous.

Moving on

to

ongoing business.

Is there any additional ongoing business?

Um I'm not sure if it's ongoing or the next one.

I just you know want to plug our next chapter as usual.

Yes.

We're in October, and so we have a new question of the month related to housing.