RE: Surface Water Management

From: Jennifer Cline

Sent: Thu Dec 04 12:47:17 2014

To: Nicolas Lennartz

Subject: RE: Surface Water Management

Importance: Normal

Is this near the rail property?

Jennifer Cline, P.E.

City of Molalla

Public Works Director

O: 503.759.0218

F: 503.829.3676

"file:///C:

From: Nicolas Lennartz [mailto:nlennartz@cityofmolalla.com]

Sent: Thursday, December 04, 2014 12:43 PM

To: Jeff Bader

Cc: Jennifer Cline

Subject: RE: Surface Water Management

Great, keep me posted.

Nicolas Lennartz

Community Planner

City of Molalla

"file:///C:

O: 503∙759∙0219; x219

F: 503∙829∙3676

C: 503∙998∙7048

From: Jeff Bader [mailto:jeffbader.com@gmail.com]

Sent: Thursday, December 04, 2014 12:39 PM

To: Nicolas Lennartz

Subject: Re: Surface Water Management

Hi Nick,

No worries. I am the property owner. So I met with the landscaper again and he appears to understand what needs to be done. Basically, what we have right now is a spout draining directly into the creek (appearing to violate the rules). He is going to work up new plans that will remove the spout draining into the creek and replace it with a swale in the south corner of the lot to keep surface water within our property lines. I will forward you the new drawing once it arrives. For now, here is a verbal description of the revised plans:

* Soil Installation:

* Install 10 yards of sandy loam soil in low area and grade area

* Swale and Drainage:

* Remove existing drain pipe going down hillside
* Excavate proposed swale area approx. 20x5ft down 20-22"
* Install 18" of 1/2"-3/4" drain crushed rock
* Install river rock over drain rock and on inside slopes
* Trench area by parking lot discussed approx. 20ft by 2.5ft wide down 12".
* Install 3" perforated drain pipe with sock and daylight out in swale area
* Backfill with 1/2"-3/4" drain rock and river rock as needed
* Connect 4" ABS pipe to existing downspout pipe and daylight into new swale area

I will be back again several times over the course of the next couple weeks, so I'm sure we can schedule something convenient.

Thanks again,

Jeff Bader

On Thu, Dec 4, 2014 at 11:45 AM, Nicolas Lennartz <nlennartz@cityofmolalla.com> wrote:

Hi Jeff,

I haven’t had the time to look into the project yet unfortunately. I would like to visit the site as soon as possible, are you visiting again soon? Or can the property owner contact me?

Thanks,

Nicolas Lennartz

Community Planner

City of Molalla

O: 503∙759∙0219; x219

F: 503∙829∙3676

C: 503∙998∙7048

From: Jeff Bader [mailto:jeffbader.com@gmail.com]

Sent: Wednesday, December 03, 2014 6:58 PM

To: Nicolas Lennartz

Subject: Re: Surface Water Management

Hi Nick,

If you haven't had a chance to look at the property first hand yet, tomorrow morning would be a great day. I'm meeting with the landscaper there at the property tomorrow morning at 8:30 am. Sorry for the late notice. Hope you can make it.

Jeff

On Mon, Nov 24, 2014 at 3:02 PM, Nicolas Lennartz <nlennartz@cityofmolalla.com> wrote:

Hi Jeff,

I’ve looked more into the proposal and spoken with our Public Works Director. I’ve attached a few notes she made on your drawing proposal, unofficially, of course.

The most difficult parameter to mitigate is the drainage not traveling onto the adjacent property. Indeed no water can drain onto an adjacent private lot, so the flood mitigation must happen on-site. Any type of drainage system can’t lead to anywhere, it must only help the water infiltrate the local ground. The best way to do this is to construct a type of drainage swale, trench or retention system that allows the water to percolate into the ground.

I hope to do a site visit before the short week is over to get a better idea of the constraints to this project.

Nicolas Lennartz

Community Planner

City of Molalla

O: 503∙759∙0219; x219

F: 503∙829∙3676

C: 503∙998∙7048

From: Jeff Bader [mailto:jeffbader.com@gmail.com]

Sent: Friday, November 21, 2014 11:31 AM

To: Nicolas Lennartz

Subject: Re: Surface Water Management

Thank you Nicolas, I will take a look at this info. In the meantime, take a look at this drawing of the plan. A verbal description of the job is the following:

* Soil Installation

* Fill large low area with soil (delivered from Highway Fuel) and level area out.

* Downspout drain:

* Install 4" ABS pipe to existing pipe from downspout.
* Install elbow and daylight down back slope

* Drainage area:

* Trench out area discussed approx. 20ft by 2.5 wide
* Trench will be dug approx. 1 ft deep
* Install 3" perforated drain pipe with sock and daylight out back slope

Thank you,

Jeff Bader

On Fri, Nov 21, 2014 at 10:03 AM, Nicolas Lennartz <nlennartz@cityofmolalla.com> wrote:

Hi Jeff,

Here are a couple parts of the code that discuss surface water runoff:

http://www.qcode.us/codes/molalla/view.php?topic=18-18_20-18_20_040&frames=off

http://www.qcode.us/codes/molalla/view.php?topic=18-18_16-18_16_110&frames=on

Reading between the lines a bit here, but I think this idea will work as long as there is no undue burden upon the drainage-way on the railroad property.

Please let me know when you have more information for me to consider.

Thanks,

Nicolas Lennartz

Community Planner

City of Molalla

O: 503∙759∙0219; x219

F: 503∙829∙3676

C: 503∙998∙7048