Problems with builder's proposal

Land schematic

The corner lot is cut in half by Lyon Creek. The west/left/top side of the map and property drops 30ft to the creek. On the east, right, bottom side of the property is wet and more flat. The buffer zone for Lyon Creek - F (fish bearing stream) is 115', not 12ft. The red square is the footprint of the house and driveway.

16.16.355 Streams – Development standards.

2. Type F stream containing fish habitat shall have a 115-foot buffer;

FLOODING

The blue color designates the ordinary high water mark (ohw) of the stream. However, in January, the water exceeded the blue outline, flooding - more than bank full. If the house were built now, it likely would have been flooded or nearly flooded by January 7, 2022 and recently in mid March with the continuous rain.

NOTICE THE WIDTH OF LYON CREEK

FLOODING January 7, 2022 - Notice the remainder of the tree that fell across the road

FLOODING DOWN BY THE 2ND CULVERT

MANY WATER SOURCES

Four sources of water currently deposit into the flood plain.

The run off from 205th street hill in LFP and MLT. The water from above runs into a 12" pipe and hits a riprap, then runs into the creek from the slope side
The road run off from Mountlake Terrace drains from the very corner drain on the northeast side of the property.
Lyon Creek from Mountlake Terrace goes through an underground culvert
Run off from the houses on top of the hill flows not on the road, but down the slope all across teh 3 parcels.

The builder should have to provide rain event modeling and drainage solutions. Listen To ex;perts talk about the risks.

Dept Fish & Wildlife

FloodFactor

TREES - LFP HAS TREE STANDARDS

Lake Forest Park is known for his bountiful greenery and tree canopy coverage. Neighboring cities regard LFP with the gold status of tree ordinances. Yet, this proposal and others like it threaten the tree canopy.

The red square is the footprint of the house and driveway. The green circles are the trees that he selected to be in this representation of the land.

Notice there are trees, green circles in the red area, yet he claims he will only remove one tree. You are invited to walk past on the number of significant trees - this means the trunk is 6 inches or more at 4 feet high (dbh). Only 13 trees were documented. Take your kids or grandkids and count many you trees you see.

This tree inventory is different from another arborist report.

This picture is of the corner on the bottom side of the hill. He plans to build his house here. When you walk around the perimeter of the property, what do you think?

This is picture of the same area, but taken from the left corner of the above picture.

TREES CODE PROTECTIONS VIOLATED

In this picture you will see purple circles around the trees. Read the LFP Tree code below, then look at the purple circles. How do you build a house, when there is a chain link fence around 70% of the area, designated to build on? How does that calculate? It doesn't. In order to build a house there, the tree code will be violated.

16.14.030 Definitions. Tree code

Tree Protection Measures To ensure the survival of the significant trees that will be marked for retention prior to construction, these industry standard best management practices should be followed:

• Tree protection barriers: A temporary enclosure erected around a tree to be protected at the critical root zone (CRZ). The City defines the CRZ as an area equal to one-foot radius from the base of the tree’s trunk for each one inch of the tree’s diameter at 4.5 feet above grade). Tree protection barriers should consist of 6-foot-high chain link fence with a sign that states: “Tree Protection Area” on all sides of the fence. Protection barriers are to remain on-site until the director authorizes their removal.

“Critical root zone (CRZ)” means the International Society of Arboriculture (ISA) definition of CRZ as an area equal to one-foot radius from the base of the tree’s trunk for each one inch of the tree’s diameter at 4.5 feet above grade (referred to as diameter at breast height). Example: A 24-inch diameter tree would have a critical root zone radius (CRZ) of 24 feet. The total protection zone, including trunk, would be 50 feet in diameter.

SLOPE EROSION AND INSTABILITY

In the above layout the dashed black lines suggest gradation of the slope. It is about a 30 foot drop from the flat land on top of slope to the toe of the slope. The proposal misrepresents the property. Notice on this form, he states the slope is less than 5%.

This is a chart to translate slope degrees to percentage. He claims the less than 5% in the blue area in the chart. It is closer to 150%.

Does this look like flat land to you?

Salmon are a protected priority habitat

There is no mention of any fish in this proposal, yet this Parcel # 4022900497 is a known PHS (Priority habitat and species) designated by Washington Department of Fish and Wildlife, the full document is attached. There are 3 protected animals, yet none of them were mentioned. The disturbance of the construction is going impact their lives. I suggest that it be required to get a submit the PHS report. 11/22/2021