# Minnesota Office of Pipeline Safety — Pipeline Safety Interpretation

- **operation:** document
- **citation:** PI-17-0011
- **title:** Minnesota Office of Pipeline Safety — Pipeline Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2019-02-26
- **effective on:** Not available
- **summary:** PI-17-0011 response to Minnesota Office of Pipeline Safety concerning 195.0.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-17-0011.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-17-0011.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-17-0011
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/pipeline/interpretations/70546/minnesota-ops-pi-17-0011-02-25-2019-part-1950.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
ofTransportation
Pipeline and Hazardous Materials
Safety Administration
1200 New Jersey Avenue SE
Washington DC 20590
f'Ea 2 5-2019
Mr. Jonathan C. Wolfgram
Chief Engineer
Minnesota Office of Pipeline Safety
445 Minnesota Street, Suite 14 7
Saint Paul, MN 55101-4145
Dear Mr. Wolfgram:
In a June 13, 2017, email to the Pipeline and Hazardous Materials Safety Administration
(PHMSA), you requested an interpretation of 49 Code of Federal Regulations (CFR) Part 195.
You specifically requested an interpretation as to the applicability of Part 195 to an intrastate
pipeline that leaves a local refinery and travels to the Minneapolis St. Paul Airport.
You described the pipeline system as follows:
Flint Hills Resources, LC (FHR) L.P. operates a IO-inch diameter intrastate pipeline
system within Minnesota, the FHR Airport Line, that originates at the Flint Hills
Resources (FHR) Pine Bend Refinery (PBR) and terminates within a fenced area in a jet
fuel storage tank facility operated by Swissport Fueling Services (Swissport) located
within the property boundaries of the Metro Airport Commission (MAC) (Minneapolis
St. Paul Airport (MSP)). This 13.38 miles of IO-inch diameter pipeline (FHR IO-inch
Pipeline) is owned and operated by FHR, was built in 1988, and operates above 20%
specified minimum yield strength (SMYS). The pipeline transports jet fuel produced that
are stored in storage tanks at the FHR PBR and then transported to the jet fuel storage
tanks at the MSP.
• On December 19, 2017, Koch Pipeline Company, L.P. notified PHMSA of its
name change to Flint Hills Resources, LC effective December 1, 2017.
You stated the following:
• The MAC owns the pipeline system that is operated by Swissport. The pipeline
crosses at least 3 roads but does not cross any water bodies.
• The regulated FHR Airport pipeline flows directly into four ( 4) 2.2 million gallon
tanks operated by Swissport with a backflow pressure valve near the end of the
FHR pipeline that directs product into the tanks in the event of overpressure. This
could be interpreted as the Swissport tanks relieving surges in the regulated
pipeline (breakout tanks).
• The Swissport tanks have never been regulated by PHMSA/Minnesota Office of
Pipeline Safety (MNOPS).
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations (49 CFR
Parts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the specific facts
presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and are provided to
help the public understand how to comply with the regulations.

<<<PAGE 2>>>

2
• The Swissport pipeline system, including the four 2.2 million gallon tanks and
multiple tank outlet pumps and pipelines that supply the MSP airport hydrant
system is not a low-stress pipeline because it is fed by two regulated pipelines -
one with maximum operating pressure (MOP) ranging from 1322 pounds per
square inch gauge (psig) to 2240 psig with pipe stress at 46.31 to 60.42 percent
SMYS and the other with an MOP of 720 psig with pipe stress at 30 percent
SMYS.
As you stated, the regulated high-stress operating pressure FHR 10-inch pipeline appears to flow
directly into four ( 4) 2.2 million gallon Swissport tanks with a backflow pressure valve near the
end of the FHR 10-inch pipeline that directs product into the tanks in the event of overpressure,
and that the Swissport tanks and associated pumps and pipelines have never been regulated by
PHMSNMNOPS.
You asked PHMSA to determine the jurisdiction for each of the following, as identified by
number in Attachment A:
Origin - FHR Refinery Property on Attachment A:
1. storage tank outlet piping manifold & valve to storage tank booster pump
26. Pressure, temperature or flow meters - for Leak Detection
2. storage tank booster pump
3. storage tank booster pump outlet piping/valve to main line pump suction 1 valve inlet
4. mainline pump 1
5. filter
6. piping from filter to sump tank
7. sump tank
8. piping from sump tank to sump pump
9. sump pump
10. sump pump outlet piping to mainline pump 1 suction
11. prover loop
12. mainline pump 2
13. pig launcher isolation valve
14. pig launcher
Termination - MAC MSP Airport Property on Attachment A:
15. pig receiver
16. valve after pig receiver
17. filter
18. piping from filter to sump tank
19. sump tank
20. piping from sump tank to sump pump
21. sump pump
22. sump pump outlet piping to filter inlet
23. prover loop
24. back pressure valve (controlled by FHR controllers to control pressure in pipeline
during flow conditions)
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations
( 49 CFR Parts 190-199) in the fonn of interpretation letters. These letters reflect the agency's current application of the regulations to the
specific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and
are provided to help the public understand how to comply with the regulations.

<<<PAGE 3>>>

3
27. Pressure, temperature or flow meters - for Leak Detection
25. Airport jet fuel storage tanks and pipeline system
"Seven (7) Pipeline Segments" that Operate at unknown or above 20% SMYS on the
MAC MSP airport property (operated by Swissport) - as shown on Attachment A:
• 0.57 miles of 8-inch diameter steel pipeline in publicly accessible areas
• 0.01 miles of 8-inch diameter steel pipeline in publicly accessible areas (Magellan
receipt station outlet piping to tanks, shown as Segment #8 on Attachment A, "8-
inch Magellan Segment #8")
• 0.47 miles of 14-inch diameter steel pipeline in publicly accessible areas
• 0.28 miles of20-inch diameter steel pipeline in publicly accessible areas
o Note: The above four (4) pipeline segments are noted as the "4-pipeline
segments" throughout this letter and total 1.3 miles of pipeline.
• Mini-Manifold and Main-Manifold and the ''three (3) outgoing pipeline
segments" are as noted below:
o 14-inch diameter Segment # 10
o 20-inch diameter Segment #2
o 20-inch diameter Segment # 1
PHMSA Reply to MNOPS Questions for the Facilities detailed on Attachment A:
Section 195.2 defines "pipeline or pipeline system" as:
[ A ]11 parts of a pipeline facility through which a hazardous liquid or carbon dioxide
moves in transportation, including, but not limited to, line pipe, valves, and other
appurtenances connected to line pipe, pumping units, fabricated assemblies
associated with pumping units, metering and delivery stations and fabricated
assemblies therein, and breakout tanks.
1) 2) Regarding regulatory jurisdiction, under 49 CFR, Part 195, for Items 1-14 and 26 in
Attachment A (Origin Point is at the FHR Refinery Property), FHR must have over-
pressure protection for maximum operating pressure control and surge pressure control at
Item 13, see Attachment A. Because the FHR over-pressure control and the leak
detection system is upstream of Item 13 and is located at Item 26, the piping and
equipment operated by FHR from Item 26 to Item 13 are regulated under 49 CFR Part
195. The FHR 13.38-miles of 10-inch diameter pipeline (FHR 10-inch pipeline) from
Item 13 to Item 16 is regulated under 49 CFR Part 195 because in accordance with Part
195.l(a), it transports "hazardous liquids or carbon dioxide associated with those
facilities in or affecting interstate or foreign commerce." This regulatory requirement
extends to the closest isolation valves upstream of Item 26.
Regarding the regulatory requirement under 49 CFR Part 195, for Items 15-25 and 27 in
Attachment A (Termination Point at MSP Airport Property), Items 15 through 24 and 27
are regulated under 49 CFR Part 195, because the pressure, temperature, and flow
measurement for the FHR 10-inch pipeline leak detection system are located at Item 27
and is downstream ofltems 15 through 24. Item 25 storage tanks, pump and pipeline
system (operates above 20% SMYS) are regulated under 49 CFR Part 195, since the
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations
(49 CFR Parts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the
specific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and
are provided to help the public understand how to comply with the regulations.

<<<PAGE 4>>>

4
tanks take product from a regulated pipeline (PHR 10-inch pipeline), the outgoing MSP
Airport pipelines operate at unknown SMYS ("4-pipeline segments" that total 1.3 miles),
and delivers to other airport storage tanks for direct delivery to airplanes. The non-
breakout MSP Airport storage tanks operated by Swissport and other fuel delivery
services located entirely within the airport fence line and low pressure delivery system
downstream of the "three outgoing pipeline segments" would not be regulated under 49
CPR Part 195.
3) The "4-pipeline segments" operated by Swissport that fuel the MSP airport hydrant
system, totaling 1.3 miles and operating at unknown or above 20% SMYS, that are
accessible to the public and along public roads, that flows from Item 25, would be
regulated under 49 CPR Part 195, because they are part of a pipeline system, including
the PHR and Swissport-operated pipeline segment that is downstream from the product
receipt station for the Magellan pipelines that operate above 20% SMYS.
4) Breakout tanks are defined in§ 195.l(b) as "tank[s] used to ... receive and store
hazardous liquid transported by a pipeline for reinjection and continued transportation by
pipeline." The four (4) storage tanks (breakout tanks) on the MSP airport property
(shown on Attachment A) and the "three (3) outgoing pipeline segments" (operated by
Swissport with unknown or above 20% SMYS) leaving the tanks that cross public roads
and are located above public light rail tunnels within the MSP airport facility are also
regulated under 49 CPR Part 195. The breakout tanks receive product and are attached to
two (2) upstream regulated pipelines (the PHR 10-inch and the Magellan 8-inch Segment
#8 pipelines are operated by Swissport within the MSP airport fence). Therefore, the four
(4) 2.2 million-gallon storage tanks on the MSP airport property that receive product
from upstream regulated pipelines and deliver product to regulated downstream pipelines
are regulated as breakout tanks under§ 195.l(c).
lfwe can be of further assistance, please contact Tewabe Asebe at 202-366-5523.
Director, Office of Standards
and Rulemaking
cc: Attachment A
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations
(49 CFR Parts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the
specific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and
are provided to help the public understand how to comply with the regulations.

<<<PAGE 5>>>

ATTACHMENT A
ENTIRELY ON PROPERTY
CONTROLLED BY THE
AIRPORT AUTHORITY
FACILITY OPERATOR:
SWISSPORT
Four Refined
Product Tanks
18
FACILITY OPERATOR:
SWISSPORT
3 Outgoing Pipelines 8",
20" & 20"
1 Incoming Pipeline 8"
4 Refined Product Tanks
19
22 _ t FHRHIGH
: STRESS PIPELINE
AIRPORT PROPERTY UNDER CON- : FACILITY
:: OPERATION
16
TROL OF SWISSPORT-CURRENTLY : ENDPOINT :
REGULATED BY MINNESOTA POL- : -
,- 1 p· R--:- - - :
- -+I 1g ece1ver 15 I .
.
LUTION CONTROL AGENCY (MPCA) : 1
- - - - -'J:
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FHR Refinery property ~ --r1;,_ .; . ..,,;,, 14
- f\l
.-. . _..
- - ~J $
-separate entity from pipeline operations
REFINERY PROPERTY r------~
. UNDER CONTROL OF FHR Prover Loop .,.
PIPELINE OPERATOR $
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FHR Refinery 1
Storage Tank(s)
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<<<PAGE 6>>>

In a June 13, 2017, email you requested the following:
Good afternoon Tewabe,
We are writing to check in with you regarding the scope of 195 jurisdictional facilities regarding
one of our hazardous liquid pipelines. The pipeline is a short intrastate line that leaves a local
refinery and travels to the MSP Airport. The system runs from a storage tank through various
pumps/valves/prover to a main-line pump. The pipe then travels across a public road where it
enters another facility. We are seeking assistance in determining both the start and end of the
jurisdictional system. Elizabeth Skalnek in our office has drafted the attached document the
scopes the system. We thought we would check with you to see if there might be any resources
available as we scope this out before submitting a formal request.
Attachment
Koch Intrastate Airport Pipeline jurisdictional review
Overview:
Koch Pipeline Company (KPL), L.P. (OPID 22855) operates one intrastate pipeline system
within Minnesota, the Airport Pipeline System, that originates at the Flint Hills Resources (FHR)
Pine Bend Refinery and terminates within a fenced area in a jet fuel storage tank facility operated
by Signature Flight Support (SFS) located within the property boundaries of the Metro Airport
Commission (Minneapolis St. Paul Airport – MSP.) This 10-inch diameter pipeline, owned by
FHR and operated by KPL, was built in 1988, operates above 20% SMYS and transports jet fuel
produced at the FHR Pine Bend Refinery from FHR Pine Bend Refinery jet fuel storage tanks to
jet fuel storage tanks at MSP.
Background:
During the 2015 field inspection, the inspector from the Minnesota Office of Pipeline Safety
(MNOPS) performed an inspection of the above ground facilities located within the fenced area
of the FHR Pine Bend Refinery and within the fenced area of the SFS terminal. Koch employees
communicated to the inspector their understanding that MNOPS jurisdiction began at the
valve(s) before the pig launcher and ended at the valve(s) after the pig receiver, specifically
excluding all pumps, sumps, filters, meters, sensors and associated piping and valves at both
ends of the pipeline. Jurisdictional diagrams were forwarded to Koch and a jurisdictional review
was initiated.
Annual report vs. NPMS:
KPL’s 2015 annual report indicates the length of its intrastate pipeline in Minnesota is 12.9
miles. KPL’s 2016 National Pipeline Mapping System (NPMS) mileage of 13.4 miles includes
FHR’s 0.4779 mile segment from the FHR Pine Bend Refinery jet fuel storage tank/booster
pump area flowing west to the fenced above ground facilities and mainline pump station located
near the northwest fenced FHR Pine Bend LLC industrial property boundaries. KPL is not
currently contracted to operate or maintain the 0.4779 mile FHR pipeline segment that it did not
consider to be jurisdictional to MNOPS.

<<<PAGE 7>>>

Pipeline Previously Considered Non-Jurisdictional - Refinery
The 0.4779 mile FHR pipeline segment on the Pine Bend Refinery property originates at the
FHR jet fuel tank(s), passes through tank booster/manifold pump(s) and through a piping
manifold, crosses two railroad tracks, proceeds approximately 0.45 miles through FHR Pine
Bend LLC property (under/near pallet storage along an internal road) and into a fenced area
controlled by Koch Pipeline. The fenced area includes a prover, four filters, two mainline pumps
(one before and one after the filters), flow meter(s), leak detection pressure and temperature
sensors, a sump line from the filters to the sump tank and a sump return line with a pump to
inject into the suction side of the mainline pump before the filters.
Jurisdictional Pipeline
A pig launcher after the filters was previously marked by KPS as the beginning of MNOPS
jurisdictional piping. After the pig launcher, the pipeline continues approximately 12.9 miles to
the fenced area controlled by KPL at the SFS facility at the airport. The fenced area at the airport
contains a pig receiver; KPL considered this the end of MNOPS jurisdiction.
Pipeline Previously Considered Non-Jurisdictional - Airport
After the pig receiver, KPL operates flow meters, pressure and temperature sensors monitored as
part of Koch’s leak detection system, a meter prover loop, product filters, a sump from the outlet
of the filters to a pump that reinjects the sump product to the piping after the pig receiver, a
product quality sampling area and a back pressure valve (just before the boundary of the fenced
area controlled by Koch). After the back pressure valve, additional piping proceeds underground
outside of Koch’s fenced area into the storage tank area controlled by SFS for approximately 175
feet before coming above ground into manifold piping and pumps that serve four airport jet fuel
storage tanks and fuel delivery pipeline system. Koch cathodically protects all of the buried
piping up to the SFS tanks, including the buried piping from outside its fenced area to the four
airport jet fuel storage tanks.
The four airport jet fuel tanks are located on property owned by the Metro Airport Commission,
accessed by Post Road (public road). The four jet fuel tanks supply pipelines that cross Post
Road and feed various airplane fueling systems.
The entire jet fuel pipeline is owned by Flint Hills Resources (FHR). FHR contracts KPL to
operate the pipeline from the fenced area at Pine Bend (beginning ~0.47 miles downstream from
the jet fuel tank) to the fenced area at the airport. To operate the pipeline, KPL controllers
request permission from FHR to initiate a control sequence that aligns valves between the
storage tank and mainline pump and starts the jet fuel tank booster pumps to deliver jet fuel to
the suction end of the mainline pumps directly controlled by KPL within the fenced area at Pine
Bend. Similarly, KPL alerts SFS that it will deliver product into SFS tanks. KPL controllers
operate all pumps and valves necessary to deliver jet fuel into the SFS tanks and KPL controllers
monitor pressure, temperature and flow as part of its leak detection system.
Please determine the jurisdiction for each of the following pipelines:
Origin:
1. storage tank outlet piping manifold & valve to storage tank booster pump;
2. storage tank booster pump;

<<<PAGE 8>>>

3. storage tank booster pump outlet piping/valve to main line pump suction 1 valve inlet;
4. mainline pump 1
5. filter
6. piping from filter to sump tank
7. sump tank
8. piping from sump tank to sump pump
9. sump pump
10. sump pump outlet piping to mainline pump 1 suction
11. prover loop
12. mainline pump 2
13. pig launcher isolation valve
14. pig launcher
Termination:
15. pig receiver
16. valve after pig receiver
17. filter
18. piping from filter to sump tank
19. sump tank
20. piping from sump tank to sump pump
21. sump pump
22. sump pump outlet piping to filter inlet
23. prover loop
24. back pressure valve (controlled by KPL controllers to control pressure in pipeline during
flow conditions)
25. Airport jet fuel storage tanks and pipeline system – if the airport pipeline system is >20%
SMYS, is it PHMSA jurisdictional?
Leak detection system sensors
26. Pressure, temperature or flow meters – upstream of otherwise non-jurisdictional
equipment
27. Pressure, temperature or flow meters – downstream of otherwise non-jurisdictional
equipment
Please let me know if you have any addition questions or require any additional information.
Thank you very much,
Jon Wolfgram, P.E.
Chief Engineer
Minnesota Office of Pipeline Safety

<<<PAGE 9>>>

Airport Property
23
Prover Loop
27
24
17
Storage Tank(s)
18
20
>20% SMYS
25
21
22
19
Public Property
Refinery Property
3
26
1
Storage Tank(s) 4
2
16
Pig Receiver
15
Pig Launcher
14
Prover Loop 11 13
12
5
6
8
7 9
10
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