HomeMy WebLinkAboutPermit L93-0043 - METRO - VEHICULAR NATURAL GAS / ENVIRONMENTAL IMPACT STATEMENT (EIS)l93-0043 11911 east marginal way south
metro vehicular natural gas project
mETRD
Municipality of Metropolitan Seattle
Exchange Building • 821 Second Ave. • Seattle, WA 98104 -1598 • (206) 684-2100
DETERMINATION OF NONSIGNIFICANCE (DNS)
Vehicular Natural Gas Project (Fueling Facilities)
PROJECT DESCRIPTION: To help improve air quality and reduce reliance on foreign sources of fuel, Metro is
changing the primary fuel used in its fleet of buses from diesel to natural gas. The conversion will be accomplished
through the purchase of new, dedicated natural gas powered buses. Metro plans to purchase a total of 810 natural gas
motor coaches by the year 2000. To fuel the new buses, Metro plans to construct natural gas fueling facilities at the
following transit operating bases: South Base, East Base, Central Base, Ryerson Base, North Base and Bellevue Base.
Construction will occur between 1995 and 2000.
On June 17, 1993, Metro will select either compressed (CNG) or liquefied natural gas (LNG). If Metro selects
compressed natural gas as the fuel form, it will build a fast -fill compressor station at each of the six operating bases. If
Metro selects liquefied natural gas, it will build fueling stations at the six bases and the LNG will be delivered by truck
to each base from an independent, privately owned liquefaction plant. Fueling facilities will include piping, fuel
dispensers, fuel storage tanks (LNG), compressors (CNG), and monitoring equipment. Fueling facilities will be
constructed within the existing paved confines of each operating base near or adjacent to fuel and wash buildings, and
all facilities will be designed to meet or exceed all applicable mechanical, electrical and fire safety codes.
PROPONENT: Municipality of Metropolitan Seattle (METRO)
LOCATION OF PROPOSAL, INCLUDING STREET ADDRESS, IF ANY: Natural gas fueling facilities will be built
at the following Metro transit operating bases:
East Base (July, 1995), 1975 124th Ave. N.E., Bellevue, WA.
South Base (October, 1995), 11911 East.Marginal Way. So., Tukwila, WA.
Ryerson Base (1996), 1220 4th Ave. So., Seattle, WA.
Central Base (1997), 1270 6th Ave. So., Seattle, WA.
Bellevue Base (2000), 1790 124th Ave. N.E., Bellevue, WA.
North Base (2000), 1 -5 and 165th Place N.E., Seattle, WA.
LEAD AGENCY: Municipality of Metropolitan Seattle (METRO)
The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the
environment. An environmental impact statement (EIS) is not required under WAC 43.21C.030(2)(c). This decision
was made after review of a completed environmental checklist and other information on file with the lead agency. This
information is available to the public on request.
There is no comment period for this DNS.
X This DNS is issued under 197 -11 -340 (2); the lead agency will not act on this proposal for 15 days from the
date below. Comments must be submitted by June 14, 1993.
DATE: May 28, 1993
RESPONSIBLE OFFICIAL: Gregory M. Bush
POSITION /TITLE: Manager /Environmental Compliance Division
TELEPHONE NUMBER (206) 684 -1164
ADDRESS: 821 Second Avenue, Seattl , Washington 98104
SIGNATURE: "1
• You may appeal this determination tion to Richard K. Sandaas, Executive Director, at Metro - 821 Second Avenue, Seattle,
Washington, 98104. You should be prepared to make specific factual objections. Contact Gary Kriedt at 684 -1166
regarding the SEPA appeals procedures.
This information is available in accessible formats on request at (206) 684 -1165 or (206) 689 -3413 (TDD).
Environmental Checklist
Vehicular Natural Gas Project
Fueling Facilities
May 28, 1993
ENVIRONMENTAL CHECKLIST
A. BACKGROUND
1. Name of proposed project, if applicable:
Vehicular Natural Gas Project (Fueling Facilities)
2. Name of applicant:
Municipality of Metropolitan Seattle (Metro)
3. Address and phone number of applicant and contact person:
Metro
821 Second Avenue, MS 120
Seattle, WA 98104 -1598
CONTACT: Gary Kriedt, Telephone: (206) 684 -1166
4. Date checklist prepared:
May 20, 1993
5. Agency requesting checklist
Metro
6. Proposed timing or schedule (including phasing, if applicable):
Metro first plans to select a vendor for a long -term contract to supply either compressed natural gas
(CNG) or liquefied natural gas (LNG) for Metro's bus fleet. Metro will then select a firm that will
be responsible for design, equipment procurement and permitting for facilities at South Base and
East Base. Finally, Metro will select a firm to construct the new fueling facilities at South and East
Base with options to provide facilities at two additional bases. Metro's schedule is as follows:
June 17, 1993 -- Phase I -- Metro Council approves form of fuel and awards contract for long term
fuel supply; authorizes negotiations for contract for design, equipment procurement and permitting
effort for facilities at South Base and East Base.
September 1993 -- Phase II -- Metro awards contract for design, equipment procurement and
permitting for fueling stations at South Base and East Base with option for the same services for
two more fueling stations.
August 1994 -- Phase III -- Metro awards contract for construction of South Base and East Base
fueling stations with options to construct two more fueling stations.
July 1995 -- East Base natural gas fueling station operational.
October 1995 -- South Base natural gas fueling station operational.
1996 -- Ryerson Base natural gas fueling station operational.
1997 -- Central Base natural gas fueling station operational.
2000 -- Bellevue Base natural gas fueling station operational.
2000 -- North Base natural gas fueling station operational.
7. Do you have any plans for future additions, expansions, or further activity related to or connected
with this proposal? If yes, explain.
Natural gas fueling facilities will be provided at six Metro operating bases. See above schedule
( #6).
8. List any environmental information you know about that has been prepared, or will be prepared,
directly related to this proposal.
Metro staff and consultants Booz -Allen Hamilton evaluated safety and environmental health
aspects of this proposal in a report titled Natural Gas Fleet Conversion Issues for Transit
Properties, issued in early May, 1993. That information is discussed in this checklist under B.7. on
page 8.
9. Do you know whether applications are pending for governmental approvals of other proposals
directly affecting the property covered by your proposal? If yes, explain.
None.
10. List any government approvals or permits that will be needed for your proposal, if known.
Specific permit requirements are not yet know. However, a building permit is likely to be required
for each fueling facility. During the permitting process, each site - specific fueling facility proposal
will be reviewed by the appropriate jurisdictional authorities for compliance with applicable codes
and regulations including regulatory codes and guidelines established by the National Fire
Protection Association and local fire protection agencies.
11. Give brief, complete description of your proposal, including the proposed uses and the size of the
project and site. There are several questions later in this checklist that ask you to describe
certain aspects of your proposal. You do not need to repeat those answers on this page. (Lead
agencies may modify this form to include additional specific information on project description).
To help improve air quality and reduce reliance on foreign sources of fuel, Metro is changing the
primary fuel used in its fleet of buses from diesel to natural gas. The conversion will be
accomplished through the purchase of new, dedicated natural gas powered buses. To fuel the new
buses, Metro plans to construct natural gas fueling facilities at the following six Metro Transit
Operating Bases: South Base, East Base, Central Base, Ryerson Base, Bellevue Base and North
Base. Construction will occur between 1995 and 2000.
Metro's conversion to natural gas will occur over time as diesel coaches are retired and replaced
with natural gas ones as part of its routine program for fleet replacement and expansion. Metro
plans to purchase a total of 810 natural gas motor coaches by the year 2000.
Metro's commitment to this project began on February 4, 1993, when the Metro Council adopted
Resolution No. 6376 directing the agency to purchase 360 natural gas buses and to purchase natural
gas buses in all subsequent fleet purchases. In order to fuel its new and expanded natural gas bus
fleet, Metro needs to construct natural gas fueling facilities at six of its operating bases.
On June 17, 1993, Metro will select either compressed (CNG) or liquefied natural gas (LNG). If
Metro selects compressed natural gas as the fuel form, it will build a fast -fill compressor station at
each of the six operating bases with the natural gas supplied through local natural gas lines. If
Metro selects liquefied natural gas, it will build fueling stations at the six bases and the LNG will be
delivered by truck to each base from an independent, privately owned liquefaction plant.
Fueling facilities will include piping, fuel dispensers, fuel storage tanks (LNG), compressors (CNG),
and monitoring equipment. Fueling facilities will be constructed within the existing paved confines
of each operating base near or adjacent to fuel and wash buildings, and all facilities will be designed
to meet or exceed all applicable mechanical, electrical and fire safety codes.
Please see Attachment A for maps of facility locations and photographs of representative
compressed and liquified natural gas fueling facilities.
12. Location of the proposal. Give sufficient information for a person to understand the precise
location of your proposed project, including a street address, if any, and section, township, and
range, if known. If a proposal would occur over a range of area, provide the range or boundaries
of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if
reasonably available. While you should submit any plans required by the agency, you are not
required to duplicate maps or detailed plans submitted with any permit applications related to
this checklist.
Natural gas fueling facilities will be built at the following Metro transit operating bases:
East Base (July, 1995), 1975 124th Ave. N.E., Bellevue, WA.
South Base (October, 1995), 11911 East Marginal Way. So., Tukwila, WA.
Ryerson Base (1996), 1220 4th Ave. So., Seattle, WA.
Central Base (1997), 1270 6th Ave. So., Seattle, WA.
Bellevue Base (2000). 1790 124th Ave. N.E., Bellevue, WA.
North Base (2000), 1-5 and 165th Place N.E., Seattle, WA.
B. ENVIRONMENTAL ELEMENTS
1. Earth
a. General description of the sites (circle one): lat rolling, hilly, steep slopes, mountainous,
other
b. What is the steepest slope on the site? (approximate percent slope)?
All sites are flat.
c. What general types of soils are found on the site? (for example, clay, sand, gravel, peat,
muck)? If you know the classification of agricultural soils, specify them and note any
prime farmland.
Soils at the sites are urban fill overlaying consolidated rock.
d. Are there surface indications or history of unstable soils in the immediate vicinity? If so,
describe.
No surface indications or history of unstable soils at any of the sites.
e. Describe the purpose, type, and approximate quantities of any filling or grading proposed.
Indicate source of mi.
No filling or grading will take place at any of the sites.
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f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe.
g.
No erosion is anticipated. However, erosion control methods will be used during
construction as per 1.h. below.
About what percent of the site will be covered with impervious surfaces after project
construction (for example, asphalt or buildings)?
One hundred percent of each fueling facility site will be covered with impervious surface.
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:
Excavated soil that may be temporarily stockpiled during installation of natural gas pipelines
will be covered and underlain with impervious material to prevent possible leaching and
runoff. If necessary, erosion control methods will be used in accordance with development
standards of the applicable jurisdiction for each site. Erosion control methods could include
covering and berming temporary piles of excavated soil and providing silt fences and straw
bales at drainage outlets.
2. Air
a. What types of emissions to the air would result from the proposal (i.e., dust, automobile
emissions, odors, industrial wood smoke) during construction and when the project is
completed? If any, generally describe and give approximate quantities if known.
During construction, exhaust emissions would result, on a temporary basis, from the
operation of gas -and diesel- powered construction vehicles and vehicles transporting
materials and workers After construction, emissions of particulate matter, formaldehyde
and carbon dioxide would be reduced as natural gas buses replace diesel buses.
Slight leaking of natural gas (methane) from compressors, piping, etc., would likely occur
after construction. Methane is non -toxic to human beings but is considered a "greenhouse
gas" that contributes to the global warming phenomenon. Metro will install a closed loop,
methane reuse system, whether the system is for CNG. or LNG, to contain methane leakage
at each site. CNG fueling facilities tend to leak more than LNG facilities. However, the
amount of leaking at each site after construction is expected to be insignificant.
b. Are there any off -site sources of emissions or odor that may affect your proposal? If so,
generally describe.
The sites are located adjacent to public roadways of varying capacities. Emissions from
those roadways would have no direct impact on the proposed construction projects.
c. Proposed measures to reduce or control emissions or other impacts to air, if any:
Measures to minimize air quality impacts would include avoiding prolonged idling of
construction and material transport vehicles, and using electric rather then fossil -fuel
burning equipment where appropriate.
To control slight leakage of natural gas (methane) from compressors, piping, etc., after
construction, Metro will install a closed loop, methane reuse system at each site, whether the
system is for CNG or LNG . However, the amount of leaking at each site after construction
is expected to be insignificant.
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3. Water
a. Surface:
1) Is there any surface water body on or in the immediate vicinity of the site (including
year -round and seasonal streams, saltwater, lakes, ponds, or wetlands)? If yes,
describe type and provide names. If appropriate, state what stream or river it flows
into.
East Base: The west branch of a tributary to Kelsey Creek flows along the north
property line, turns south and runs along the north half of the east property line, then
enters a culvert passing under a driveway, and flows east again exiting the site vicinity.
South Base: The Duwammish River is approximately 1,200 feet east of the project
site; a retention pond is approximately 400 feet north of the proposed location of the
natural gas fueling facility adjacent to the Fuel and Wash Building. Water from the
retention pond feeds into the Duwammish River.
Ryerson Base: No surface water body is on or in the immediate vicinity of the site.
Central Base: No surface water body is on or in the immediate vicinity of the site.
North Base: No surface water body is on or in the immediate vicinity of the site.
2) Will the project require any work over, in, or adjacent to (within 200 feet) the
described waters? If yes, please describe and attach available plans.
Work would not take place within 200 feet of described waters.
3) Estimate the amount of fill and dredge material that would be placed in or removed
from surface water or wetlands and indicate the area of the site that would be
affected. Indicate the source of fill material.
None.
4) Will the proposal require surface water withdrawals or diversions? Give general
description, purpose, and approximate quantities if known.
No.
5) Does the proposal lie within a 100 -year floodplain? If so, note location on the site
plan.
None of the proposed fueling facility sites lie within a 100 -year floodplain.
6) Does the proposal involve any discharges of waste materials to surface waters? If
so, describe the type of waste and anticipated volume of discharge.
None.
b. Ground:
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1) Will ground water be withdrawn, or will water be discharged to groundwater? Give
general description, purpose, and approximate quantities if known.
No.
2) Describe waste material that will be discharged into the ground from septic tanks or
other sources, if any (for example: Domestic sewage; industrial, containing the
following chemicals...; agricultural; etc.). Describe the general size of the system, the
number of such systems, the number of houses to be served (if applicable), or the
number of animals or humans the system(s) are expected to serve.
None.
c. Water Runoff (including storm water):
1) Describe source of runoff (including storm water) and method of collection and
disposal, if any (include quantities, if known). Where will this water flow? Will this
water flow into other waters? If so, describe.
Existing storm water runoff system at East Base:
Storm runoff at the site is collected from building roof drains and the impervious
parking lot surface. Pavement runoff is collected through catch basins, into a flow
distribution structure and through a coalescing plate oil/water separator that settles
out solids and removes surface petrochemical film. The treated water is then
discharged into Kelsey Creek.
Existing storm water runoff system at South Base:
Stormwater runoff at the site is from . buildings and impervious parking lot surfaces.
Runoff flows into an underground drainage system, through a coalescing plate
oil/water separator, and into a retention pond on the east side of the site. Water
from the retention pond feeds into the Duwammish River.
Existing storm water runoff system at Ryerson Base:
Stormwater runoff at the site is from buildings and impervious parking lot surfaces.
Runoff flows into an underground drainage system, through a coalescing plate
oil/water separator, and into the local storm drainage system.
Existing storm water runoff system at Central Base:
Stormwater runoff at the site is from buildings and impervious parking lot surfaces.
Runoff flows into an underground drainage system, through a coalescing plate
oil/water separator, and into the local storm drainage system.
Existing storm water runoff system at North Base:
Stormwater runoff treatment at the site is on three different levels: the lid /open space
area, the employee parking area, and the lower -level bus parking area. The natural
gas fueling facilities would be located near the maintenance and operations buildings
on the lower level.
Stormwater from the lower bus parking level is routed through an 8 -foot detention
pipe, through a coalescing plate oil/water separator, through a grass -lined swale and
eventually into Thornton Creek, 11/2 miles south through a drainage network serving
the local residential area.
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sa ;
2) Could waste materials enter ground or surface waters? If so, generally describe.
The stormwater drainage systems at each site would prevent waste materials from
entering ground or surface waters.
d. Proposed measures to reduce or control surface, ground and runoff impacts, if any
Excavated soil that may be temporarily stockpiled during installation of natural gas pipelines
will be placed on pavement on the site and will be underlain with impervious material to
prevent possible leaching and runoff. If necessary, erosion control methods will be used in
accordance with development standards of the applicable jurisdiction for each site. Erosion
control methods could include covering and berming temporary piles of excavated soil and
providing silt fences and straw bales at drainage outlets.
4. Plants
a. Check or circle types of vegetation found on the site:
X deciduous tree: alder, maple, aspen, other
X evergreen tree: fir, cedar, pine, other
X shrubs
X grass
pasture
crop or grain
X wet soil plants: cattail, buttercup, bullrush,
skunk cabbage, other
water plants: water lily, eelgrass, milfoil,
other
other types of vegetation
b. What kind and amount of vegetation will be removed or altered?
None.
c. List threatened or endangered species known to be on or near the site.
None.
d. Proposed landscaping, use of native plants, or other measures to preserve or enhance
vegetation on the site, if any:
No additional landscaping is proposed.
5. Animals
a. Circle any birds and animals which have been observed on or near the site or are known to
be on or near the site:
birds: hawk, heron, eagl songbir# ' other:
mammals: deer, bear, elk, beaver, other: mice
fish: bass, salmon, trout, herring, shellfish, other:
•
b. List any threatened or endangered species known to be on or near the site.
None are known to be on or near any of the project sites.
c. Is the site part of a migration route? If so, explain.
None of the sites are part of a migration route.
d. Proposed measures to preserve or enhance wildlife, if any:
None.
6. Energy and Natural Resources
a. What kinds of energy (electric, natural gas, oil, woodstove, solar) will be used to meet the
completed project's energy needs? Describe whether it will be used for heating,
manufacturing, etc.
The completed project will use natural gas for the fueling facilities and electricity for
compressors, monitoring devices, fans, and other equipment. Natural gas will continue to be
used as the primary heating fuel at each facility.
b. Would your project affect the potential use of solar energy by adjacent properties? If so,
generally describe.
No.
c. What kind of energy conservation features are included in the plans of this proposal? List
other proposed measures to reduce or control energy impacts, if any:
None. However, natural gas is a more efficient fuel than diesel for buses.
7. Environmental Health
a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of
fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal?
If so, describe.
Natural gas is a flammable fuel and a fire hazard It is lighter than air and poses a
flammability and explosion risk under conditions which do not allow the vapor to dissipate.
Those hazards are similar to those faced by residential and commercial users of natural gas
for heating or other uses. The most likely place for formation of flammable or explosive
mixtures of natural gas would be at or near the ceiling. Therefore, facilities which would
handle repairs or refueling will include proper ventilation and gas sensors to eliminate the
possibility of a combustible mixture collecting. The compressed form of natural gas is stored
at 3,600 lbs. per sq. inch. The liquefied form is stored as a cryogenic liquid at -260 deg. F.
Regulatory codes and guidelines established by National Fire Protection Association
(NFPA) and local fire protection agencies would be applied during the permitting process at
the project specific level. Additional NFPA codes related specifically to natural gas
applications are currently being developed. The most conservative codes and regulations
would apply to each project.
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1) Describe special emergency services that might be required.
Normal public fire protection services would be available.
2) Proposed measures to reduce or control environmental health hazards, if any:
Local fire protection agencies will be informed of each project and computer
monitoring systems will be installed at each site.
b. Noise
1) What types of noise exist in the area which may affect your project (for example:
traffic, equipment, operation, other)?
None.
2) What types and levels of noise would be created by or associated with the project on
a short -term or a long -term basis (for example: traffic, construction, operation,
other)? Indicate what hours noise would come from the site.
In the short -term, material transport and construction vehicles would increase local
noise levels slightly during construction. In the long -term, if compressed natural gas
is chosen as the fuel type, compressors would increase noise levels during operation.
Those noise levels would likely be 75 dB to 100 dB within three feet of the equipment.
No significant increase in noise levels beyond base perimeters is expected.
3) Proposed measures to reduce or control noise impacts, if any:
Compressors would be contained within sound - buffered structures to reduce noise
levels during operation.
8. Land and Shoreline Use
a. What is the current use of the site and adjacent properties?
All sites are currently used as bus bases. Properties adjacent to all of the sites are either
commercial or industrial except at North Base where adjacent properties are residential.
b. Has the site been used for agriculture? If so, describe.
None of the sites have been used for agriculture.
c. Describe any structures on the site.
All sites have maintenance buildings and ancillary structures.
d. Will any structures be demolished? If so, what?
No structures will be demolished.
e. What is the current zoning classification of the site?
All sites are zoned either industrial or commercial /industrial.
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f. What is the current comprehensive plan designation of the site?
All sites are designated either commercial, industrial, or public facility.
g. If applicable, what is the current shoreline master program designation of the site?
Not applicable.
h. Has any part of the site been classified as an "environmentally sensitive" area? If so,
specify.
No parts of any of the sites have been classified as environmentally sensitive areas except
Kelsey Creek which flows along the north and east property lines of Metro's East Operating
Base in Bellevue.
1. Approximately how many people would reside or work in the completed project?
Each completed fueling facility would require approximately five to ten employees. No
additional employees would be needed beyond current levels.
j. Approximately how many people would the completed project displace?
No people would be displaced.
k. Proposed measures to avoid or reduce displacement impacts, if any:
None.
1. Proposed measures to ensure the proposal is compatible with existing and projected land
uses and plans, if any:
Proposed facilities would not affect existing land use plans.
Housing
a. Approximately how many units would be provided, if any? Indicate whether high, middle,
or low - income housing.
None.
b. Approximately how many units, if any, would be eliminated? Indicate whether high,
middle, or low - income housing.
None.
c. Proposed measures to reduce or control housing impacts, if any:
None.
10. Aesthetics
a. What is the tallest height of any proposed structure(s), not including antennae; what is the
principal exterior building material(s) proposed?
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Possible structures would be no more than thirty feet in height (LNG storage tower). Other
structures would be approximately ten feet in height (compressor housing, fueling station).
Please see Attachment A for graphic representations of CNG and LNG fueling facilities.
b. What views in the immediate vicinity would be altered or blocked?
Some minor view obstruction may occur with an LNG storage tower. Views would not be
altered or blocked with any other fueling facility equipment.
c. Proposed measures to reduce or control aesthetic Impacts, if any:
None.
11. Light and Glare
a. What type of light or glare will the proposal produce? What time of day would it mainly
occur?
None.
b. Could light and glare from the finished project be a safety hazard or interfere with views?
No.
c. What existing off -site sources of light or glare may affect your proposal?
No off -site sources of light or glare would affect the proposal.
d. Proposed measures to reduce or control light and glare impacts, if any
No measures are proposed.
12. Recreation
a. What designated and informal recreational opportunities are in the immediate vicinity?
A community park created by Metro at North Operating Base is several hundred feet from
the proposed fueling facility location. No other recreational facilities are in the immediate
vicinity of any of the proposed fueling facility sites.
b. Would the proposed project displace any existing recreational uses? If so, describe.
No.
c. Proposed measures to reduce or control impacts on recreation, including recreation
opportunities to be provided by the project or applicant, if any:
No measures are proposed.
13. Historic and Cultural Preservation
a. Are there any places or objects listed on, or proposed for, national, state or local
preservation registers known to be on or next to the site? If so, generally describe.
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None.
b. Generally describe any landmarks or evidence of historic, archaeological, scientific or
cultural importance known to be on or next to the site.
None.
c. Proposed measures to reduce or control impacts, if any:
None.
14. Transportation
a. Identify public streets and highways serving the site, and describe proposed access to the
existing street system. Show on site plans, if any.
East Base: Served by 124th Ave. N.E. No access changes are proposed.
South Base: Served by East Marginal Way South. No access changes are proposed.
Ryerson Base: Served by 4th Ave. South and Royal Brougham Way. No access changes are
proposed.
Central Base: Served by 6th Ave. South, South Massachusetts St., and Airport Way South.
No access changes are proposed.
North Base: Served by I -5 and 165th Place N.E. No access changes are proposed.
b. Is site currently served by public transit? If not, what is the approximate distance to the
nearest transit stop?
Each site is a Metro transit base and has a transit stop within 1/4 mile.
c. How many parking spaces would the completed project have? How many would the project
eliminate?
No parking spaces would be provided or eliminated.
d. Will the proposal require any new roads or streets, or improvements to existing roads or
streets, not including driveways? If so, generally describe (indicate whether public or
private).
No new roads, streets, or improvements to existing streets would be required at any of the
proposed sites.
e. Will the project use (or occur in the immediate vicinity of) water, rail, or air
transportation? If so, generally describe.
No.
f. How many vehicular trips per day would be generated by the completed project? If known,
indicate when peak volumes would occur.
If compressed natural gas is chosen, no additional vehicular trips would be generated at any
of the sites. If liquefied natural gas is chosen, fueling stations will require approximately one
to two transport truck trips per day per base, similar to current diesel operations.
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g. Proposed measures to reduce or control transportation impacts, if any
None because impacts are not significant.
15. Public Services
a. Would the project result in an increased need for public services (for example: fire
protection, police protection, health care, schools, other)? If so, generally describe.
The project would not increase the need for public services at any of the proposed sites.
b. Proposed measures to reduce or control direct impacts on public services, if any:
None.
16. Utilities
a. Circle the utilities currentl available at the site: ect icity
ther.
b. Describe the utilities that are proposed for the project, the utility providing the service, and
the general construction activities on the site or in the immediate vicinity which might be
needed.
If compressed natural gas is chosen, each fueling facility site would require extension of local
natural gas lines to the fueling facility compression and dispensing system. Exact location of
gas line extensions is not yet known. The installation of natural gas distribution lines is
categorically exempt from SEPA as per WAC 197- 11- 800(24)(d).
C. SIGNATURE
The above answers are true and complete to the best of my knowledge. I understand that the lead agency
is relying on them to make its decision.
Signature:
Date Submitted: Mdti 27f, /593
Environmental Checklist
Vehicular Natural Gas Project
Fueling Facilities
CIMETRO
Attachment A
May 28, 1993
Attachment A
North Base
_ Snohomish County
King County
Redmond
East Base
Bellevue Base
Bellevue
Issaquah
South Base
Tukwila
Vashon
Island
LEGEND
Des
Moines
• Metro Transit Base
Locator Map
Environmental Checklist Vehicular Natural Gas Project — Fueling Facilities
Attachment A
South Base
11911 E Marginal Way S
Locator Map
2 Environmental Checklist Vehicular Natural Gas Project - Fueling Facilities
Attachment A
40
c
East Base
Nonhup
aM
Bellevue Base
LEGEND
• East Base
1975 124th Ave NE
• Bellevue Base
1790 124th Ave NE
'vii h°
Locator Map
Environmental Checklist Vehicular Natural Gas Project—Fueling Facilities
Attachment A
0
Kingdome
S Ro al Brou
ham Wa
S Dearbom St
Ryerson Base
S Holgate St
Airport Way
Exit
Central Base
S Massachusetts St
w
LEGEND
co
a
L
• Central Base
1523 6th Ave S
dB Ryerson Base
1220 4th Ave S
S Lander St
oo
Locator Map
4 Environmental Checklist Vehicular Natural Gas Project—Fueling Facilities
Attachment A
N 175th St
North Base
N 165th St
1
N 155th St
A
W
z
LEGEND
•North Base
1 -5 and 165th PI NE
Locator Map
Environmental Checklist Vehicular Natural Gas Project—Fueling Facilities
Attachment A
South Base Schematic
No scale
Environmental Checklist Vehicular Natural Gas Project—Fueling Facilities
Attachment A
Environmental Checklist Vehicular Natural Gas Project — Fueling Facilities
Attachment A
S Royal Brougham Way
S Atlantic St
rn
c
Y
0.
0
Trolley Fleet Stalls \\
Operations
Motor Bus Stalls
Motor Bus Stalls
Proposed Natural
_ Gas Fueling Area �—
Wash
Fuel
Maintenance
Body Shop
Cashier
J
NVR Shop I `1
Maintenance
S Massachusetts St
Central Base Schematic
No scale
Environmental Checklist Vehicular Natural Gas Project—Fueling Facilities
Attachment A
S Royal Brougham Way
Coach Parking
Maintenance Building
L
e_____ Proposed Natural
Gas Fueling Area
Fuel Building
Coach Parking
Wash i uilding
Ryerson Base Schematic
No scale
Environmental Checklist Vehicular Natural Gas Project - Fueling Facilities
Attactmalt A
u
ca
LelE
u
I;;
R3 2
co
a)
m
10
Environmental. Checklist Vehicular Natural Gas Project — Fueling Facilities.
Attachment A
I
V
Landscaping
and Park
Line of
1 Building
/Below
Parking
C
n
Parking
Proposed Natural
---- Gas Fueling Area
—1. -a — 07
Parking Lot
r
Operations Building
Parking
! fir. an �_rs T z T.a�. -n + . —
1'
Tank Farm
Maintenance Building
North Base Schematic
No scale
Environmental Checklist Vehicular Natural Gas Project — Fueling Facilities
11
Attachment A
Typical Liquefied Natural Gas Fueling Station
12 Environmental Checklist Vehicular Natural Gas Project :Fueling Facilities
Attachment A
300 - 800 PSI
High Pressure Gas Transmission Line
50 PSI
Typical Bus Fill:
6,000 SCF
Throttling and Pressure
Regulating Valve at City Gate
Pressure Gauge
Methane Detector(s)
Gas
Dryer
Dispenser --[
Totalizer
y
y
„ik— Stage
Heat Exchanger
Second Stage
Third Stage
Fourth Stage
4000 PSI
Max Pressure
Filter
Electric
Motor
Compressor
6 480 Volt
three phase Line
Control Line
(automatically
shuts off motor
when gas
is detected)
Buffer Tank:
30,000 SCF
Typical Capacity
Typical Compressed Natural Gas Fueling Station
Environmental Checklist Vehicular Natural Gas Project — Fueling Facilities
13
Attachment A
Typical Liquefied Natural Gas fueling facility
Typical Liquefied Natural Gas fueling island
14 Environmental Checklist Vehicular Natural Gas Project— Fueling Facilities
Attachment A
Typical Compressed Natural Gas fueling facility
Typical Compressed Natural Gas fueling island
Environmental Checklist Vehicular Natural Gas Project—Fueling Facilities 15