HomeMy WebLinkAboutRS_Singh_Wetland_&_Stream_Reconnaissance_180516.pdf May 16, 2018
AOA-5686
Phil Kitzes
PK Enterprises
23035 SE 263rd St.
Maple Valley, WA 98038
SUBJECT: Wetland and Stream Reconnaissance for S. Singh Short Plat
City of Renton Parcel 00720-0196 (LUA17-000803)
Dear Phil:
On May 10, 2018 I conducted a wetland and stream reconnaissance on the subject
property utilizing the methodology outlined in the May 2010 Regional Supplement to
the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys,
and Coast Region (Version 2.0). The primary focus of the reconnaissance was to
review the findings of the Critical Areas Report prepared by Habitat Technologies
dated April 22, 2017.
The Habitat Technologies report identified three surface water drainages on the site
that originate from culverts along the east side of the property adjacent Renton Ave.
S. Per the report, “all three of these surface water drainages were associated with
the outlet of concentrated stormwater runoff from City of Renton stormwater
systems. As such, these surface water drainages appeared more consistent with
intentionally created, artificial features rather than naturally occurring streams. The
surface water moved within these drainages appeared in direct response to public
stormwater facilities.”
Based on my site review I concur with this determination. All three of the identified
drainages are clearly depicted as originating from stormwater outfalls on the City of
Renton’s GIS mapping (see attached). Since the source of the runoff within the
drainages is entirely artificially collected and intentionally discharged onto the site,
the drainages should not be considered natural streams. Furthermore, the City of
Renton specifically exempts “intentionally created” waters from the critical area
regulations per RMC 4-3-050G.7.b.
Phil Kitzes
May 16, 2018
Page 2
Conclusion
The three drainages identified in the Habitat Technologies report were confirmed as
stormwater conveyance features and not streams. This determination was based on a
site review and a review of the existing City of Renton stormwater mapping.
If you have any questions regarding the reconnaissance, please give me a call.
Sincerely,
ALTMANN OLIVER ASSOCIATES, LLC
John Altmann
Ecologist
2,257
188
City of Renton Parcel 000720-0196
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not be
accurate, current, or otherwise reliable.
None
5/16/2018
Legend
128064
THIS MAP IS NOT TO BE USED FOR NAVIGATION
Feet
Notes
128
WGS_1984_Web_Mercator_Auxiliary_Sphere
Information Technology - GIS
RentonMapSupport@Rentonwa.gov
City and County Boundary
Addresses
Parcels
Water Service Areas
Wastewater Service Areas
Discharge Point
Water Quality
Stormwater Main
Culvert
Virtual Drainline
Private Network Structures
Inlet
Manhole
Utility Vault
Unknown Structure
Private Control Structure
Private Discharge Point
Private Water Quality
Private Detention Facilities
Pond
Tank
Vault
Wetland
Private Pipe
Private Culvert
Private Open Drains