HomeMy WebLinkAboutSpecial 2013-09-09 Comprehensive Plan - Attachment B2 - Natural EnvironmentNATURAL ENVIRONMENT
Comprehensive Plan Update
Comments from July 2013 Work Sessions, Public testimony and written comments at 8/12/13 Public Hearing, and subsequent meetings with individual Council members
Issue
(highlighted in underline where possible
Comment
Date /Source
Staff comment/analysis /options
Concern /Issue Area /Policy
Page 1 of 5
I
It appears that the contracted editor did not ensure that the voice
(passive vs active) in the sentence structure of the goal and policy
language in this Element was consistent with other Comp Plan
Elements. Recommend including an editor's note that explains why
NE goal and policy structure is different from other elements and then
make all Elements consistent in a year.
7/30/13 work
session, CM
Kruller
Staff explanation: The goal and policy language structure
was intentionally developed by the Tukwila Tree and
Environment Advisory Committee goal statements are
"end statements - i.e., where the City wants to be at some
point in the future. Policies contain action verbs. Staff
reviewed goal and policy language in the other Elements
currently under consideration and they don't appear to be
that different in the voice being used. Staff needs further
direction from the Council on this issue.
2
SO /UL document. Staff should review all comment "balloons" to
ensure they correctly cross reference revisions to goals and policies
7/30/13 work
session; CM
Kruller
Staff has done this and prepared a memo (included in
packet, dated August 28, 2013) with corrections or
additional explanation on certain goals and policies.
3
The Natural Environment Element does a good job discussing the
natural environment in Tukwila. Maps of slopes, streams (even
channelized), wetlands, coal hazard areas, and any aquifer recharge
areas would help residents and resident workers understand the
natural features of the community, and would help identify the
opportunities and challenges in development and redevelopment of
your community.
Dept of
Commerce
letter, 8/14/13
These resources are mapped on the City's Sensitive
Areas map, which is too cumbersome to be inserted into
the document. Instead, elcetronic links will be inserted in
the document to take readers to the map on the City's
website.
4
Pg. 3 of SO /UL, text, first paragraph, add "springs" after
08/21/2013, CM
Robertson
Staff concurs.
"watercourses" on second line of paragraph. Sentence would read:
"The Natural Environment Element sets forth goals and policies to
guid the protection and management of wetlands, watercourses,
springs, fish and wildlife areas
5
Pg. 5, of SO /UL, text, last paragraph, third line from bottom, add
"snails" after "garter snakes" and before "amphibians ". Sentence to
8/21/13, CM
Robertson
Staff concurs.
read: "Other wildlife species in Tukwila include coyotes, Eastern
Grey squirrels, beaver, otter, nutria, turtules (mostly non- native red -
eared sliders), garter snalkes, snails, amphibians (non- native
bullfrogs, native Pacific Tree frogs, and salamanders), opossum, and
raccoons."
6
Pg. 7, of SO /UL, under Climate Change. Comment: global warming
will have other impacts besides sea level rises - add some discussion
about temperature effects, such as the importance of trees to help
mitigate heat island effects.
8/21/13, CM
Robertson
Staff concurs and can develop additional language to
discuss increased temperature effects.
7
Pg. 8 of SO /UL, fourth paragraph - sentence referencing Corps of
Engineers requirements to remove trees from levees. Clarify whether
the Corps still has a role in determining what vegetation may grow on
levees and on re- certification of levees.
8/21/13, CM
Robertson
The Corps of Engineers establishes standards for
construction and maintenance of federally funded levees
and also for locally funded levees to be eligible for federal
assistance in the event there are repairs needed. One of
the standards limits what vegetation may be planted or
allowed to grow on the levees (current standard allows
only grass, with provisions for variances on a case -by-
case basis). The Corps does not certify levees nor does
it require certification. Certification is a FEMA
requirement related to mapping flood plains (i.e. if the
levee is certified as meeting Corps standards it is
presumed that the area served by the levee is no longer
in a flood plain).
8
Pg. 11 of SO /UL, top of page, last sentence in paragraph carried over
from page 10, add "and resources ", so sentence would read:
8/21/13, CM
Robertson
Staff concurs.
"Tukwila also needs to improve the protection of watercourses and
find mechanisms and resources to ensure that compensatory
mitigation is successful for the long term."
9
pg. 11 of SO /UL, under Water Quality: add "springs" to the first
8/21/13, CM
Robertson
Staff concurs.
sentence. Sentence would read: "More efforts are needed to improve
and protect water quality in the City's wetlands, watercourses, springs
and the Green /Duwamish River."
10
Pg. 11 of SO /UL, Water Quality, add to the last sentence in this
paragraph: "therefore the City needs to make sure adequate
8/21/13, CM
Robertson
Staff concurs.
resources are available." The sentence would read: "More efforts are
needed to improve and protect water quality in the City's wetlands,
watercourses, springs and the Green /Duwamish River, therefore the
City needs to make sure adequate resources are available."
11
Pg. 13 of SO /UL, Policy 4.1.3, remove "existing" from second line of
policy and add "fish" to the language. New policy language to read:
8/21/13, CM
Robertson
Staff concurs.
"Identify impacts to wildlife from new development and ensure
protection of existing priority fish and wildlife habitat, including Osprey
and Bald Eagle nests and Chinook and Bull Trout habitat when
issuing permits for development."
Page 1 of 5
NATURAL ENVIRONMENT
Comprehensive Plan Update
Comments from July 2013 Work Sessions, Public testimony and written comments at 8/12/13 Public Hearing, and subsequent meetings with individual Council members
Issue
(highlighted in underline where possible
Comment
Date /Source
Staff comment/analysis /options
Concern /Issue Area /Policy
12
Pg. 16 of SO /UL, Concern that wildlife corridors have not been
included in replacement policy 4.1.3. Existing Comp Plan Policy 4.2.4
reads: Protect and manage Tukwila's priority habitat areas, and
habitat corridors within and between jurisdictions.
7/30/13 work
session; CM
Robertson
A reference to wildlife habitat corridors was not included
in proposed Policy 4.1.3 for several reasons: 1) Habitat
corridors have not been defined or mapped. 2) the City
has no means to protect habitat corridors within the city or
between jurisdictions unless they are also part of a
sensitive area, a park or the shoreline. The City's
sensitive areas probably function as wildlife corridors for
birds and small to medium sized mammals, amphibians,
and other species. Examples include the riparian areas
along streams and the river, large wetland complexes,
and forested steep slopes such as those east of 1 -5 and
along SR 518. 3) There is no regulatory authority to
protect habitat corridors unless they are designated as
priority habitat or provide habitat for a priority species as
determined by the State. Direction is needed from the
Council on whether to map wildlfe corridors and regulate
them in some way. This type of mapping assessment
would require hiring a wildlife biologist to identify and
assess existing corridor conditions and their use by
wildlife.
13
Pg. 16 of SO /UL, concern that the proposed policies under proposed
Goal 4.11 (related to geological hazard areas) do not carry forward
the language from existing Policy 4.3.2, particularly the issues related
to costs being borne by the property owners" and requirements to
implement measures to maintain slope stabiity.
8/21/13, CM
Robertson
Staff agrees that the new policies (4.11.1, 4.11.2, 4.11.3,
4.11.4, 4.11.5) do not completely address the current
policy language. See staff comment below for Page 25 of
the SO /UL document for proposed policy revision to
Policy 4.11.3.
14
Pg. 16 of SO /UL, First Implementation Strategy bullet: delete "as
needed" from the end of the sentence. New language would read:
"Assign responsibilities for tracking climate change issues and
develop recommendations for new City management policies as
needed) "
8/21/13, CM
Robertson
Staff concurs.
15
Pg. 17 of SO /UL, sixth Implementation Strategy, remove "other ". New
strategy would read (in part): " Team with other environmental
organizations such as...."
8/21/13, CM
Robertson
Staff concurs.
16
Pg. 19, Policy 4.5.2 Add "springs" to policy. New language would
read: "Recognize, protect and enhance the value of watercourse and
river riparian zones, springs and other natural areas as wildlife
8/21/13, CM
Robertson
Staff concurs.
corridors."
17
Pgs. 20 -21 of SO /UL, Policy 4.6.5, The policy needs to ensure that
downstream and other drainage impacts do not occur from allowing
off -site mitigation. Therefore revise the policy to read: "Allow off -site
wetland mitigation only when there is greater functional benefit, no
significant adverse impact to the drainage sub -basin adjacent property,
8/21/13, CM
Robertson
Staff concurs.
and no signficant adverse impact to existing wetlands or
watercourses. Preference shall be first to mitigation sites within
given
Tukwila's portion of the Green - Duwamish watershed, followed by
sites located elsewhere in the watershed."
18
Pg. 21 of SO /UL, Policy 4.6.6: Delete this policy - we should not be
allowing mitigation outside the City. "Consider allowing into
8/21/13, CM
Robertson
This policy and Policy 4.6.7 were included because
Federal and State wetland guidance favor in -lieu fee
programs to allow for larger & potentially more successful
wetland mitigation sites instead of on -site mitigation at
wetlands that are likely fragmented in the landscape.
This policy was phrased "consider" so that the pros and
cons of this approach could be fleshed out for further
consideration by the Council.
payment
benefits will be than
ecological of such actions significantly greater
•• _. _ • _ - _ • • • ... ..
19
Pg. 21 of SO /UL, Policy 4.6.7: Delete this policy. "Consider creating
- - - - - •• -
8/21/13, CM
Robertson
See explanation for policy 4.6.6 above - staff looking for
guidance from Council on the issue of off -site and in -lieu
fee issue.
- _ _ _ _ _ _ .. _ _ _ - _ _ _ - _ _ -
with King County to establish in lieu fee sites in Tukwila for wetland
River shoreline."
20
Pg. 21 of SO /UL, Fifth Implementation Strategy bullet: delete
"Encourage off -site wetland mitigation and "; new strategy would read:
"Encourage off -site wetland mitigation and oOffer assistance to
8/21/13, CM
Robertson
Staff concurs
property owners interestedin providing mitigation sites, where
appropriate."
21
Pg. 21 of SO /UL, Sixth Implementation Strategy: Delete this strategy
"Evaluate Federal State requirements for in lieu
8/21/13, CM
Robertson
If the Council deletes Policies 4.6.6 and 4.6.7, then
deleting this implementation strategy would be
appropriate.
opportunities and and
-- - •• • .:• :::.•• :: =• : •
.•. .. .•:: -- - -
County designated in Tukwila. Provide recommendations to
sites
decision makers."
Page 2 of 5
NATURAL ENVIRONMENT
Comprehensive Plan Update
Comments from July 2013 Work Sessions, Public testimony and written comments at 8/12/13 Public Hearing, and subsequent meetings with individual Council members
Issue
(highlighted in underline where possible
Comment
Date /Source
Staff comment/analysis /options
Concern /Issue Area /Policy
22
23
24
25
26
27
28
29
30
31
32
33
34
Pg 21 and 22 SO /UL, add an implementation strategy to define and
map springs.
8/27/13, CM
Robertson
Staff concurs and proposes placing the new
implementation strategy under the heading on Page 21:
"Wetlands /Watercourses /fish and Wildlife Habitat
Implementation Strategies ". However, due to lack of
resources, mapping will be done on the basis of
information the City already has and on information that is
submitted as part of development applications. Note that
proposed Policy 4.8.2 requires all proposed development
to identify hydrologic features on the site, including
springs.
Pg. 22 of SO /UL, Policy 4.7.6. Add "or fish and wildlife benefits" after
8/21/13, CM
Robertson
Staff concurs
"water quality'. New Policy would read: Retrofit existing City surface
water systems, including ditches conveying stormwater, to improve
the water quality of discharges wehre there are significant water
quality or fish and wildlife benefits.
Pg. 23, of SO /UL, Policy 4.8.2, add "and prevent" to second sentence
8/21/13, CM
Robertson
Staff concurs
of policy. New policy would read: "Require that all proposed
development identifies hydrologic features both on- and off -site that
could be impacted by the project. Evaluate and prevent project
impacts on on -site and off -site watercourses, wetlands, drainage
features and springs to avoid adverse impacts to existing sensitive
area hydrology."
Pg 23 SO /UL, Policy 4.8.3: Change "Continue" to "Perform ". New
7/30/13 work
session; CM
Robertson
Staff concurs
policy would read: Perform Continue inspection programs to ensure
proper maintenance of public and private surface water management
systems.
pg. 24, SO /UL, Policy 4.9.4: Minimize adverse impacts to water
resources by requiring the use of bioengineering and natural solutions
for bank flood feasible
8/21/13, CM
Robertson
Staff concurs
stabilization or control projects, wherever
technically possible and not cost prohibitive."
Pg. 24, SO /UL, Goal 4.10: The levee system south of 1 -405 is
constructed, maintained and certified to meet the accreditation
standards of the Federal Emergency Management Administration and
8/21/13 CM
Robertson
Staff concurs
the City's Shoreline Master Program."
Pg. 24, SO /UL, Policy 4.10.3: " Continue to wWork with the U.S. Army
8/21/13, CM
Robertson
Staff concurs. Addition of "Pacific NW conditions" helps
emphasize that conditions and issues here differ from
other areas of the country where Federal levees are
located.
Corps of Engineers to develop levee vegetation policies consistent
with Pacific Northwest conditions that enhance habitat while at the
same time protecting public safety."
Pg.24 of SO /UL, Policy 4.10.4: Add to the end of the policy: "while
7/30/13 work
session; CM
Robertson
Staff concurs.
complying with Tukwila's Shoreline Master Program." New policy
would read: "Coordinate with the City of Kent on flood control projects
that affect both jurisdictions, while complying with Tukwila'as
Shoreline Master Program."
Pg. 24, SO /UL, Implementation Strategies. Change "federal" to
"FEMA ". The proposed implementation strategy would read:
8/21/13, CM
Robertson
Staff does not concur. "Federal" does not just refer to
FEMA but also to the Federal Endangered Species Act.
"Regulate used, development and redevelopment, including essential
facilities, in flood plains, consistent with federal FEMA regulations.
Pg. 25 of SO /UL, Policy 4.11.1. Modify the policy to reflect that not all
geotechnically hazardous areas are steep slopes.
7/30/13 work
session and
8/21/13; CM
Robertson
Staff concurs. Recommended Policy 4.11.1 language
would be: "Require geotechnical studies for any
development proposal on slopes over 15% in areas
where landslide potential is classified as Class 2, 3 or 4 to
ensure that design takes into account geologic
characteristics, surface and groundwater, and the
presence of trees and native vegetation and their role in
slope stabilization."
Pg. 25 of SO /UL, Add language to the appropriate policy requiring that
engineering measures identified in the studies be implemented by the
applicant.
8/21/13; CM
Robertson
Staff concurs. Recommended proposed language in
proposed Policy 4.11.3 would be: "Require that
recommendations in geotechnical studies be
implemented and require setbacks for buildings and other
infrastructure where needed from the top and /or toe of
steep slopes to reduce risks of slope failure and risks to
public safety.
Pg. 26 SO /UL, Second bullet, "Review and consider revising the SAO
8/21/13, CM
Robertson
Concur, but no code housekeeping amendments are
currently in the DCD 2014 work plan. Amendments could
be done in 2015.
- ''e e_' Request deletion this implementation
_ _ _ ." of
strategy, just add to 2014 work program.
Pg. 28 SO /UL, Goal 4.13: Revise goal wording to be consistent with
other The would read:
8/21/13, CM
Robertson
Staff concurs and recommends additional modifications
as follows: Change goal 4.13 to read "Overall city -wide
tree canopy increased to a total of 29% by 2034. Change
the "Goals for Increasing Canopy" to: "Canopy cover in
goals. proposed goal
Overall city -wide tree canopy for the zoning categories indicated
below -has increased to 29% by 2034 e - _ _ _ _ _
wide for different land
individual zoning categories increasedby 2034 as listed
goals use categories:
below"
Page 3 of 5
NATURAL ENVIRONMENT
Comprehensive Plan Update
Comments from July 2013 Work Sessions, Public testimony and written comments at 8/12/13 Public Hearing, and subsequent meetings with individual Council members
Issue
(highlighted in underline where possible
Comment
Date /Source
Staff comment /analysis /options
Concern /Issue Area /Policy
35
Pg. 29 SO /UL, Policy 4.13.1.b. Modify paragraph 'b." as follows.
Policy would read: "except for hazard trees or trees that interfere with
underground or overhead utilties, prohibiting removal of any tree four
inches or larger in diameter at breast height (dbh) on all undeveloped
property without an approved development or other land use permit to
the opportunity to some healthy trees during
8/21/13, CM
Robertson
Staff response: The language proposed for deletion was
inserted by the Planning Commission to reflect concerns
by some Tukwila property owners. Whether the policy
includes this phrase or not, the goal is to work with project
proponents to lay out development in a manner that
allows for preserving mature, healthy trees while still
permitting the allowed density to occur.
provide preserve
development, while the density for
still accommodating allowed each
site."
36
Pg. 29 of SO /UL, Policy 4.13.2: Shorten policy to end after "slopes"
7/30/13 work
session; CM
Robertson
Staff agrees - new policy would read: Improve retention of
trees on steep slopes. through modifications in
regulations, the the role that trees
and move remaining text of policy into implememtation strategies.
ensuring evaluation of
in slope stability during reviews, and by
play geotechnical
incentives. Two new implementation strategies
providing
would be added as follows: 1) Incorporate requirements
in geotechnical studies to ensure evaluation of the role
trees play in slope stability. 2) Develop incentives for
increasing retention of trees on steep slopes.
37
Pg. 30 SO /UL, Policy 4.13.7: This policy allowing payment into a tree
replacement fund may permit an "out" for not providing all required
replacement trees.
8/21/13, CM
Robertson
Staff response: Current tree regulations (that apply only
to sensitive areas and the shoreline) establish ratios for
replacement of removed trees (for example in the
shoreline a removed tree with a diameter of 4 -6 inches
must be replaced by 3 trees). There are situations where
not all the required trees should be planted on a site
because it could affect the long term health of the trees,
such as when space between trees or between trees and
structures is inadequate. Both the current Tree
Regulations and the Shoreline Regulations permit the
payment into a special fund when all replacement trees
cannot be accommodated on site. This proposed policy
provides direction to support the existing regulations. The
City has established a fund, which is utilized to purchase
trees and related supplies for planting in sensitive areas
and the shoreline.
38
Pg. 30 SO /UL, Policy 4.13.6. Tree topping is necessary in some
cases when the trees are hazardous. Recommendation that when
new regulations are developed, an exception be incorporated to allow
for topping of hazardous trees.
Balint. CC
Hearing
testimony
8/12/13
Policy 4.13.1 allows for the removal of hazardous trees
(as do existing codes). It is well recognized in the
industry that tree topping can actually turn healthy trees
into hazardous trees. Topping is not an acceptable
method of addressing hazardous trees or for lowering the
height of healthy trees (lowering of tree height can be
done by special methods - not topping - that will promote
tree health, where there is interference with overhead
utilities). Hazardous trees should be removed, or at a
minimum, safety pruned by a knowledgeble arborist.
Safety pruning does not encompass topping.
39
Pg. 29 SO /UL, Policy 4.13.1: SCL supports the proposed language
"or trees that interfere with underground or overhead utilities"
Brent Schmidt,
SCL, letter to
Council dated
8/9/13
Comment acknowledged
40
Pg. 30 SO /UL, Goal 4.14: Suggest adding a policy that recognizes
the value of the "right tree -right place" concept.
Brent Schmidt,
SCL, letter dated
8/9/13
Staff concurs and proposes the following modifications to
Policy 4.14.8: Develop an approved /recommended tree
list for street trees, landscape perimeter planting and
parking lots that recognizes the importance of the
concept of "right tree, right place ", taking into account
available planting space and infrastructure /utility conflicts
and that considers takes into account the importance of
diversity,
species
infrastructure conflicts,- climate conditions, canopy
coverage goals, allergy issues, urban wildlife benefits,
and tolerance of urban conditions.
41
Active intervention is required in some cases to make vegetation
compatible with existing infrastructure...I support the development of
rewards for the preservation of existing healthy trees balanced with
recognition that not all existing trees are healthy or growing at
locations that provide the highest benefit.
Brent Schmidt,
SCL, letter dated
8/9/13
Comment noted.
42
Pg. 27 SO /UL, Policy 4.12.1, PSE supports Tukwila's commitment to
an urban forestry plan.
Andy Padvorac,
Puget Sound
Energy, 8/12/13
Comment noted.
43
PSE is in full agreement that the provision of utility service needs to
be balanced with environmental responsibility. PSE practices "right
tree, right place" and has produced "Energy Landscaping" to guide
the planting of appropriate vegetation near utility facilties.
Andy Padvorac,
Puget Sound
Energy, 8/12/13
Staff will continue to work with stakeholders during the
development of implementing regulations.
Page 4 of 5
NATURAL ENVIRONMENT
Comprehensive Plan Update
Comments from July 2013 Work Sessions, Public testimony and written comments at 8/12/13 Public Hearing, and subsequent meetings with individual Council members
Issue
(highlighted in underline where possible
Comment
Date /Source
Staff comment/analysis /options
Concern /Issue Area /Policy
44
PSE would like to continue to work with the City as it moves forward
with developing implementation measures
Andy Padvorac,
Puget Sound
Energy, 8/12/13
Staff will continue to work with stakeholders during the
development of implementing regulations.
45
Pg. 20 SO /UL,Policy 4.13.1.b.: PSE supports the language (originally
requested by Seattle City Light) to allow removal of trees that interfere
with underground or overhead utilities. PSE requests clarification of
the term "interference ".
Andy Padvorac,
Puget Sound
Energy, 8/12/13
In terms of Policy 4.13.1.b. ,examples of "interference"
could be trees that have roots that are growing into sewer
or water pipes, or overhead branches that are brushing
up against utility wires.
46
Pg. 29 and 30 SO /UL, Policies 4.13.1.c and 4.13.7. PSE supports
retaining significant trees in appropriate locations under the concept
of "right tree, right place." PSE strongly supports incentives for off-
site mitigation and fee -in -lieu and would like to see specific code
language that applies this to trees under powerlines.
Andy Padvorac,
Puget Sound
Energy, 8/12/13
Comment noted; staff will continue to work with
stakeholders during the development of implementing
regulations.
47
Pg. 20 SO /UL, Policy 4.13.4: add "utilities" to the Comprehensive
Andy Padvorac,
Puget Sound
Energy, 8/12/13
Staff concurs with the request to add "utilities" to the
definition of infrastructure.
Plan definition of "infrastructure" so this policy applies to both city
owned and non - city -owned infrastructure.
48
Move the following proposed implementation strategy for Policy 10.2.2
in the Southcenter Element into the Natural Environment Element as
an implementation strategy. Suggested language: Develop street
8/27/13 CM
Robertson
Staff concurs and proposed adding this as a bulleted
implementation strategy in the Urban Forestry Section of
the Natural Environment Element (we propose it as the
final bullet on page 33 of the SO /UL version).
tree regulations that prioritize shade over ornamental needs.
Page 5 of 5
September 4, 2013
City of Tukwila Jim Haggerton, Mayor
Department of community Development Jack Pace, Director
MEMORANDUM
TO: Mayor Jim Haggerton
Members of Tukwila City Council
FM: Jack Pace, Director, Dept. of Community Development
BY: Carol Lumb, Senior Plann ' '
Sandra Whiting, Urban Environmentalist
RE: Staff Comments in Strikeout/Underline Natural Environment Element - References to Current
Goals and Policies
At the work session on July 30, 2013, Council asked staff to review the comments provided in the strike -
out/underline (SO/UL) version of the Natural Environment Element to ensure that the revisions to
Comprehensive Plan goals and policies have been explained and cross referenced correctly. Staff has
reviewed all the comments and has concluded that in most cases the references in the comments are
correct and that the new proposed wording accurately reflects the intent of the original policies
referenced, and in some cases expands on them. This memo discusses only those comments for which
staff thinks additional information or clarification is needed.
Each comment in the strike - out/underline version of the Natural Environment Element is numbered, and
is referenced accordingly below.
g 13, SO/UL Comment CL6. Proposed language does not match exactly the existing policy
language but meets the intent. Existing Policy 4.2.1 says the City will inventory, classify and
designate fish and wildlife priority habitats. However, it is the Washington Department of Fish and
Wildlife that designates priority species and habitat, not the City. The City has designated certain
areas as "Fish and Wildlife Habitat Areas under the Sensitive Areas Ordinance (shown on the SAO
Map) — they include the Green/Duwamish River, restoration areas on the river, and Tukwila Pond.
Other areas that provide wildlife habitat are protected either as wetlands or watercourses and their
buffers or are on public or private properties where there is existing tree canopy and little to no
development.
Pg. 13, SO/UL Comment CL7. Current goal related to water quality is in proposed Goal 4.7. See also
proposed Policy 4.7.1 relative to maintaining water quality and proposed Policy 4.8.2 relative to
downstream (i.e., "off- site ") impacts from runoff.
CUSW. W: \\Long Range Projects\2014 Conip Plan Update \CITYCOUNCILWE Element - Council memo.docx
6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone 206- 431 -3670 • Fax 206 - 431 -3665
September 4, 2013
Mayor Haggerton and Members of Tukwila City Council
Annotated Strikeout/Underline Natural Environment Element
Pg. 14, SO/UL Comment CL13. Correct references should be to proposed Policies 4.6.2, 4.6.3 and
4.6.4.
Pg. 15, SO/UL Comment CL17. The proposed Policy 4.6.1 does not include any mention of projects
for flood control and stormwater detention, as was stated in the existing Policy 4.1.9. Staff feels that,
while ensuring that wetlands and watercourses are protected for their natural functions as stormwater
and flood water retention and conveyance systems is important, carrying out flood control and
stormwater detention projects in wetlands and water courses is not consistent with Best Available
Science. The deletion of this aspect of the existing policy is consistent with current SAO regulations
which only allow bioswales and dispersion outfalls in sensitive areas (with appropriate mitigation), as
long as there are no adverse impacts to hydrology, habitat, or water quality. Creation of regional
stormwater detention areas is no longer allowed in any streams or wetlands or their buffers.
Pg. 15, SO/UL Comment CL25. Current policy intent is also found in proposed Policy 4.7.2
Pg. 16 SO/UL Comment CL26. The reference to protecting habitat corridors within Tukwila and
between jurisdictions has not been carried over to proposed Policy 4.1.3. See discussion in Council
Matrix of Comments.
Pg. 18, SO/UL Comment CL 36. In addition to proposed Policies 4.2.1 and 4.2.3, part of former
Policy 4.4.1 is also included in proposed Policy 4.3.1.
Pg. 20, SO/UL Comment CL52. The proposed policy language does not include "development
flexibility ", that was part of existing Policy 4.1.5. However, existing SAO provisions allow flexibility
through buffer reductions and off -site mitigation, as well as reasonable use exceptions. Going beyond
these current measures to allow even more flexibility would likely not meet Best Available Science.
Therefore, this specific language was not carried over to the proposed policy.
Pg. 23, SO/UL Comment CL69. Also see proposed Goal 4.10.
CL/SW Page 2 of 2 09/04/2013 3:22 PM
W: \\Long Range Projects \2014 Comp PlanUpdate \CITYCOUNCIL\NE Element - Council memo.doc