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20665 S.W. Blanton St.
P0. Box Y
ORE40M Aloha,Oregon 97006
503/649.8577
DIST. �
TO: OCCUPANCY FILE
FROM: 14I1-13URN DODGE
SUBJECT: PARGAS
10075 S. hl. CASCADE BOULEVARD
nATE: DECEMBER 14, 1981
On December 8, 1961 , at the request of Mr. Wi 'iliarn Ford of Pargas of Portland,
Incorporated, an inspection was made of the nei 30,000-gallon capacity propane
storage tank currently being installed at the Tigard gas plant as noted above.
This installation was the subject of cur letter of plans review dated Decem-
ber 29, 1980. included in this file.
The inspection revealed that the container was marked for above-ground
installation, it had a water, capacity of 30,000 gallons, the design working
pressure was 250 psi with the product being at 1250 F, that it had an outside
surface area of 1 ,888 square feet.
Three relief valvas are installed at the west end of the tank and are equipped
with risers of 7 feet in height. Each relief valve has a capacity of 11 ,812
cubic feet per minute (air) making a total combined capacity of 35,436 cubic
feet per minute (air) thus having a capacity of 9,389.7 cubic feet per minute
(air) above that which is required for the surface area of the tank.
At the time of this inspection, the plumbing of the piping to and from the
container was in process. Pargas personnel at the container site advised
that they would contact this office for a pressure test and final inspection
of the piping once the plInrrbing has been completed.
! . q the aforementioned letter of plans review, items 1 , 2, 3, 4 and 5
h:!ve he n atisfied. Items 6 through 8 must be verified on final inspection.
xc : I ld Wa l dr'n
William Avery
'Ailliam Ford
Fire prevention does no!cost it pays
BUILDING PERMIT APPLICATION TIGARD DA*rr - -_-_ ts___ 3782
THf=UNDERSIGNED HEREBY APPLIES FOR A PERMIT FOR THE WORK HEREIN 114DICATED BUILDER PHONE '
OR AS SHOWN AND APPROVED IN THE ACCOMPANYIN,.3 PLANS AND SPECIFICATIONS. OWNER PHONE
LOT NO.
OWNER PoIrges OF POrtlA131013ADDRESS 1.I.107�j SU Cascade 131L iu•
20 tRCHITECT
ENGINEER Mecicier,P.O. Taylor
BUILDER IMeedur (:.quip. Co. ADDRESS 9134 NE C01faXoSuit6 DESIGNER
STRUCTURE ❑ NEW ❑_REMODEL ':AAdDITION_ ❑ REPAIR _❑ RENEWAL I❑ FIREDAMAGE ❑ DEMOLITION
❑ RESIDENCE X1 COMM ❑ EDUCATIONAL ❑ GOWT ❑ RELIGIOUS ❑ PATIO ❑ CARPORT ❑ GARAGE C, STORAGE ❑ SLAB❑ FENCE
OCCUPANCY LAND USE ZONE _.BLDG.TYPE ----FIRE ZONE PLAN CHECK BY �dwtt HEAT -�-
Conetru(;t concrete foundation for pressurized plumatlr propene tank. _
A31 tar plar-it rads, Tota.: system to ne tested prior to operation, _
__
end ine acted b Wash. County Fire Uistric.t �1.
SEWERPERMITN --
OCC.LOAD FLOOR LOAD -HEIGHT NO.STORIES AREA NO.BEDROOMS -_ VALUES L v 1)0 C1•
- ------ --- - —-- --
__ BUILDING DEPARTMENT SETBACKS FRONT REAP. _ LEFT SIDE RIGHT SIDE
Permit _ _p��• I-' THIS PERMIT IS ISSUED SUBJECT TO THE REGULATIONS CONTAINED IN THE BUILDING :ODE, ZONING
(�u REGULATIONS AND ALL APPLICABLE CODES AND ORDINANC-S, ?.Ian IT IS HEREBY AGREED THAT THE
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Plan Check _ • WORK WILL BE DONE IN ACCORDANCE WITH THE PLANS AND SF'Er.IFICATIONS AND IN COMPLIANCE
30.00 WITH ALL APPLICABLE CODES AND ORDINANCES. THE ISSUANCE OF THIS PERMIT DOES NOT WAIVE
Sub-total • RESTRICTIVE COVENANTS. CONTRACTOR AND SUB CONTRACTORS TO HAVE CURRENT CITY BUSINESS
-� LICENSE.SEPARATE PERMITS REQUIRED FOV SEWER,PL UMBING AND HEATING.
State Tax .81)
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Recelpt No. ��—�-
Approved _ �Vtti ADDRESS PHONE
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DATE INSP. TYPE INSPECTION REMARKS PLUMBING DATE
2 Lis625f Contractor
Perm;t No,
Rough-in
Fixture
— --� Final
HLATING
_ -- Contractor
—_. Permit No. '— -
Gee nr Oil ---
Rnugh-in
Final
SEWER -
-- -_ Final
DIRIVEWAY
Final
Storm Drainage
(Rain Drain)Final
Sidewalk
Curb&Street final
Approach
BLDG. DEPT. FINAL TEMPORARY CERTIFt:ATE OCCUPANCY
CERTIFICATE OCCUPANCY Final ,�—
Landscaping
Zoning Final
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�"NGTON c�G
20665 S.W. Blanton St.
P.O. Box Y
Aloha, Oregon 97006
A.,
DIST
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503/619 8577
February 3, 1981
Mr. William T. Avery
Regional Manager
Pargas of Portland, Inc.
P. 0. Box. ?.3067
Portland, Oregon 97123
Dear Mr. Avery:
Enclo_.ed herewith is a copy of a memorandum which I received this
morning from Bill Walls of NFPA. Since you are in the process of
installing a new container and since the subject matter of this
memorandum will ultimately have an impact upon your facility on
Cascade Boulevard, I thought it may be of interest to you.
C:ery tr y yours,
, I f(jN Y FIRE DIST! ( ' NO.
Wi ii)urn Dodge
Plans Examiner
jcc
Lc : Inspector Parker
Enclosure (1 )
Fire prevention does not cost...it pays
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NATIONAL
FIRE= PROTECTION
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ASSOCIATION
N F PA iV T ERNA T IONAL
"Mo—l; MonYmnr Townrd Sofeh From F✓n••
To: All Federal , State, County and Local Authorities
i cgulating the Safety of Stationary L.P-Gas Facilities
From: W. L. Walls, Gases Field Service Engineer �. I
Subject: Installation of Emergency Shutoff Valves
Date: January 9, 1981
According to NFPA records , you are Engaged in the promulgation
and/or enforcement of regulat-,ons covering stationary LP-Gas facilities
in your jurisdiction,. In most instanzes , you have used NFPA 58, Storagr:
and Handlinu of Liquefied Petroleum Gases, in this activity - either
by adopting it by reference or by incorporating its provisions in regu-
lations developed by yourse' ves.
By whatever approach yju have used, you have, of course, been
required to adopt or inco,-porate a specific edit-on of NFPA 53. Where
an approach other than strict adoption by reference has been used,
some provisions in NFPA 58 may have been modified or even ornitted
in the regulations.
The purpose of this memo is to call your attention to one provision
in NF"A 58 that is expected to have a great impact upon improved fire
safety - so much so that you may wish to take irnmed-iate steps to implement
it in your jurisdiction.
In the mid-1970' s, a Joint Task Force of the NFPA Committee ort
Liquefied Petroleum Gases (which is responsible for NFPA 58) and the
National LP-Gas Association (the major trade association for the LP-Gas
industry) conducted a study of the fire experience of the large instal-
lations - concentra"ng on tile factors leading to explosive container
failure (the Boiling Liquid-Expanding Vapor-Explosion , or BLEVE) . This
study showed:
1 . In nearly all cases, the fire expnsure that caused the BLEVE
was burning LP-Gas escaping from ruptured hoses or damaged piping or
as a result of hose coupling failure.
EXECUTIVE OFFICE:470 ATLANTIC AVENUE, BOSTON,MASSACHUSETTS,USA.02210- tFLEPHONE AREA -ODE(61 7)482.8755 - TELEX 94-0720
The non-pmfff We nanl and ndurahr l omon,ronpr.To Promoro Nr r;e<e onaPmro Ifie merf.-d,of f,a Prow'non and pre.rn— io cbam and c.m Taro
nformonon on If-.w fubR'QI and to wvre the coaperrnon of"members and Mro p,,blic in efrnblishing proms.ofegua.ti,agnma lots of life rind propeM by Ire.
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2. in nearly all cases, the LP-Gas escape was associated with
liquid transfer operations involving cargo vehicles or rail-
road tank cars a�. well as the stationary storage containers.
3. In cases where a cargo vehicle was involved, the damage to hoses
and/or piping was the result of an attempt to move the vehicle
while hoses were still connected.
4. Excess-flow check valves did not operate for a variety of reasons -
including breakage not large enough to result in a flow
"sufficiently" excessive for the rated closure point of the valve
and damaged or inoperative valves.
5. The containers that BLEVE'd were those on the cargo vehicles and
railcars as well as those in storage service.
Based upon this study, it was concluded that the excess-flow check
valve could not be relied upon as the sole means for providing the needed
degree of safety in certain facilities covered by NFPA 58.
On November 16, 1976, the 1976 edition of NFPA 58 was adopted by the
NEPA. Par. 3168 was added in this edition. This paragraph specified the
installation of a so-called "emergency shutoff valve" on certain LP-Gas
systems - essentially t�•:� larger systems where the experienc- ce Fa-d clearly
revealed a need. Par. "i168 stipulated a date of December 31 , 1978 by which
all pertinent installations should be equipped with this protection. As
regulators, you will recognize that such a retroactive provision is unusual
and indicati .—e of the reed for such protection in the view of the Committee
and the NFPA.
This date was subsequently changed to December 31 , 1980 by a Tentative
Interim Amendment. This was found to be necessary for valve development
and listino.
On May 17, 1979., the current (1979) edition was adopted by the NFPA.
In addition to a date of December 31 , 1980, Par. 3168 was amended sub-
sequently by two Tentative Interim Amendments. TIA 58-79-1 required
immediate compliance with 3168 on new installations rather than by
December 31 , 1980 (this TIA is published on page 181 of the 1979 edition) .
This action is a further manifestation of the need for this protection.
TIA 58-79-2 was published in the Mav/Jane 1980 issue of the NFPA
"Fire News" and points out that: more than cne emergency shutoff valve
may be needed in piping arrangements where more than one hose is used.
December 31 , 1980 has now passed. While we know that many instal-
lations are n;w in compliance with Par. 3168, it is extremely doubtful
-3-
that all of those that should be are in compliance. I firmly believe that
it is in the best interests of those you serve to have this provision an
accomplished fact in your ,jurisdiction as soon as possible.
We all recognize that we must be pract cal in attaining this goal ,
There will undoubtedly be delays due, if to nothing else to problems
with weather in the Northern areas of the USA and Canada. However, the
initial problems of equipment availability, and design are behind us.
One of the problems reported to NFPA is that some of you are
encumbered with older editions of NFPA 58 (or provisions based upon them)
on your statutes. From 18-Flus years of working with you, I am well
aware of your problems o` keeping current with NFPA standards - especially
if you have not adopted them by referr ice,
Usually, a lag of an edition or two is not serious. However, from the
standpoint of Par. 3168 alone, : urge each of you with editions of NFPA
58 older than the 1976 edition "on the books" (or provisions based upon
them) to immediately take steps to update to the 1979 edition.
To allay any concerns you might have about possible industry
objections, I 'm assured that. the Safety Committee of the National LP-Gas
Association will support such an action on your part.
Finally, as I 'm sure you are aware, I ' ll he glad to assist you
further in any way that I can.
c,�: Skip Smith, Pat Jordan
cc: Members of LPG COM
I
NGTON CSG
20665 S.W. Blanton St.
P.O. Box Y
f�~ Aloha,Oregon 97006
.n nArsow '1,
503/649.8577
FD S'r
December 29, 1980
Mr. William T. Avery
Regional Manager
Pargas of Portland Incorporated
P. 0. Box 23067
Portland, Oregon 97223
Dear Mr. Avery:
The plans for the installation of the new 30,000 gallon capacity propane
storage tank which we requested in our letter to your firm of November 24,
1980, were received in this office on December 2 and have now been
examined with reference to applicable fire safety regulations. The
scope of the submitted plans and the information which they contain is
e�gdin �i ed. No doubt all of the following requirements are
eing provided for in the actual installation. However, we were unable
to determine that they were being provided for in the drawings which we
received.
In any case, we are listing as follows requirements which must be addressed
during the course of installation and for which we found no provisions in
the construction documents submitted to us.
1 . The container must bear the following markings:
a. the service for which the container is designed;
i .e. underground or above ground service or both.
b. the name and address of the supplier.
c. the water capacity of the containers in U.S. gallons.
d. the design pressure of the container in pounds per
square inch gauge.
e. wording prohibiting the filling of the container with
a product having a vapor pressure in excess of the
maximum design pressure of the container at 100 degrees
Fahrenheit.
f. the outside surface area of the container in square
feet.
Fire prevention does not cost...it pays
Mr. William Avery
December• 29, 1980
Page 2
2. The container must be fitted with a safety relief valve
or valves set to discharge at not less than 88 percent
and not more than 120 percent of the design pressure of
the container. The safety relief valve or valves must
be located to be in constant contact with the vapor space
of the container and must be fitted with dis-:harge pipes
to the effect that they will discharge upward and away from
the container at a point not less than 7 feet above the
top of the container shell .
The discharge pipes must be fitted with rain caps to
prevent rain, snow, ice, wind born debris, etc. from
collecting within them and from obstructing the discharge
capacity in any way. Provisions must be made for draining
condensate from the relief valve discharge in such a manner
as to protect the container against flame impingement which
might result from ignited products escaping from the drain
opening.
The relief valve or valves must have a discharge capacity
(or aggregate discharge capacity) to effectively provide
relief from internal pressures within the container based
upon the surface area of the container. The required
discharge capacity or aggregate discharge capacity in cubic
feet per minute (air) may be calculated by taking the
surface area of the container, in square feet, to the
0.82 power and multiplying the results by the constant of
53.632. Thus, for example, a container having a total
surface area of 3,000 square feet (according to our cal-
culations) would be required to have a relief valve
discharge capacity of 38,077 cubic feet per minute (air)
or 3,000 to the 0.82 power equal 709.969 times 53.632
equal 38,077.061.
Each container relief valve must be fitted with a
permanently attached plate or marking indicating the
start to discharge pressure in pounds per square inch
gauge and the actual discharge rate in cubic feet of
air per minute at 60 degrees Fahrenheit and 14.7 pounds
per square inch atmospheric pressure.
3. All container openings exclusive of those used for safety
relief valves, liquid level gauging devices, pressure
gauges, and plugged openings must be equipped with a
positive shutoff valve and either an excess flow or back
flow check valve, depending upon the function of the
opening. Excess flow and back flow check valves must be
located between the contai^er and shut off valves either
inside the container or at a point immediately outside
where the line enters or leaves the container, as the
case may be. If outside, the installation must be made
fir. W 11 iam Avery
Decemher 29, 1980
Page 3
so that any endue strain beyond the excess flow or back-
flow check valve will not cause breakaan hetween the
container or the valve. All connection
lead-
ing to or from any individual opening f eh an
excess flow valve must have a capacity g, an the
rated flow of the valve.
All valves, gauges and other appurtenances must
protected against. damage. All container inlet ar
connections except for safety relief valves, liquid level
gauging devices and pressure gauges must be labeled to
designate whether they coruminicate with the vapor or the
liquid space viithin the container. Labels may be attached
to the valves controlling the inlets or outlets.
4 . The container must be provided with a liquid level gauging
device which may be of the -1 ;N Lube, rotary tube or float
types and in addit=un, if the container under discussion
was constructed aster Decemier 31 , 1965, it must be equip-
ped with a fi:;ed liquid level gauge to indicate the maximum
filling level for the service to which the ontainer is
einp i o2ted.
If the gauging devices, as mention
bleeding of product to atmosphere, nc
have a maximum opening equivalent . o that of
grill size or less unless equipped with an excess i uv. eve.
S. The container must be fitted with a pressure gauge attached
directly to a container opening or to a valve or fitting
which is directly attached to a container opening. If the
opening will permit a flow greater than that of a No. 54
drill size, an excess flow check valve (Dust be provided
for the pressure gauge opening.
6. All piping, fittings , valves , etc. used in connection with
this installation must be constructed of steel , ductile
iron, malleable iron or brass. All such devices must be
listed by UL Incorporated or A.G.A. for LP ga.; service and
must have a design working pressure of not less than 250
psig except where subjected to pressures in excess of 2.50
psig such as on the discharge side of transfer pumps, in
which case they must have a designed working pressure of
350 psig.
Gaskets must be of metal having a melting point of not
less than 1500 degrees Fahrenheit or 'Dust be protected
against fire exposure.
Mr. William Avery
December 29, 1980
Page 4
At all points in the liquid piping system where LP gas
in the liquid state may be trapped between shutoff
valves, pressure relief valves must be provided. Said
pressure relief valves must be set to discharge at not
less than 400 psig and not over 500 prig.
7. Ali piping must be suitably supported, protected and
braced or fitted with flexible connections to prevent
strain to the piping system arising from settling,
heaving, vibration, expansion, contraction, etc.
8. Prior to the placing of the piping system and container
in service, all joints, fittings and valve connections
must be tested and proven leak-free in the presence of
a representative of this office.
Subject to the foregoing comments and stipulations, the plans under dis-
cussion are hereby approved. If you Have any questions regarding the
furegai. or if this office can be of service in any other capacity, please
let us k 'W.
Very uiy yours,
fr
WAS14 NGTO UNTY FIRE [11�y R1 CT NO 1
V&P Ore
Wilburn Dod
Plans Fxaminer
jcc
cc : Inspector Parker
r
y�Q /� yam► 20665 S.W. Blanton Sl.
P.O. Box Y
P Aloha,Oregon 97006
Its ��E6JM ,y •.
503/649-8577
�FVI ST.
November 24, 1980
Pargas of Portland, Inc.
10075 S. W. Cascade Blvd.
Portland, Oregon 912.23
Gentlemen:
On Friday, November 21 , 1980, we had occasion to examine the plans
for the footings and piers for the support of a new 30,000-gallon
propane tank which w., understand will be installed at your plant in
the near future. [he purpose of this letter is to advise you that
prior to making the installation, complete plans must be submitted
to and approved by this office pursuant to Section IV of the Fire
Prevention Ordinance of Washington County Fire District No. 1 . These
plans should include:
1 . A plot plan showing the relationship of the new tank
installation to all adjoining property lines and to
all existing buildings and tanks located on the
property.
2. Drawings showing the piping and valving system and
its relationship to any existing piping and valving
system into which it will be connected.
3. Specifications covering the construction of the tank,
piping and valves.
In the event that you are not already aware, Washington County Rural
Fire Protection District No. 1 is an exempt area pursuant to ORS
476. 030 and, therefore, all tees, installation notices and so on must
be referred directly to this office rather than to the Sta-e Fire
Marshal . Installation fees within this District coincide with those
as set forth in ORS 480.450.
Fire prevenlion does not cost...it pays
Pargas of Portland, Inc.
November 24, 1330
Page 2
We trust that we may look forward to hearing from you in the near future.
Please let us know if you should have any questions regarding the foregoing
or if we can be of service in any other way.
ery tr r yours,
ldAS)i I UN COUN Y FIRE DI5 kI
� L
Wilburn Dodge
Plans Examiner
jcc
cc: Inspector Parker
Alarm Center