# Kern River Gas Transmission Company — Pipeline Special Permit

**Citation:** PHMSA-2007-29078  
**Type / status:** permit / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2008-11-06  
**Published:** 2008-11-06

PHMSA-2007-29078, issued 2008-11-06 for Kern River Gas Transmission Company's gas transmission system.

## Document text

PHMSA pipeline special permit PHMSA-2007-29078. Operator: Kern River Gas Transmission Company. System: Gas Transmission. Issue date: 2008-11-06. Renewal: Mar 3, 2020.

<<<PAGE 1>>>

U.S. Department ofTransportation
Pipeline IJnd Hazardous Materials
Safety Administration
1200 New Jersey Ave, S.E.
Washington, D.C. 20590
JUL 3 0 l~l~
Mr. RobertS. Checketts
Vice President, Operations, IT and Engineering
Kern River Gas Transmission Company
2755 E. Cottonwood Parkway, Suite 300
Salt Lake City, Utah 84121
Ref: Special Permit PHMSA-2007-29078
Dear Mr. Checketts:
The Pipeline and Hazardous Materials Safety Administration (PHMSA), Office of Pipeline
Safety hereby gives notice that the referenced alternative maximum allowable operating pressure
(MAOP) special permit PHMSA-2007 -29078, granted to the Kern River Gas Transmission
Company (Kern River) on March 29, 2010, will expire on March 29, 2015.
A Special Permit requiring renewal is defined as a special permit issued with an expiration date
in the "limitations" section of the existing special permit. If Kern River wishes to renew this
special permit, notice must be given to the PHMSA Associate Administrator for Pipeline Safety
at least 180 days prior to the expiration date. The procedures for renewal are outlined on the
following pages.
My staff would be pleased to discuss this special permit or any other regulatory matter with you.
Mr. John Gale, Director of Standards and Rulemaking Division, may be contacted at
202-366-0434 for regulatory matters, and Mr. Ken Lee, Director of Engineering and Research
Division, may be contacted at 202-366-2694, for technical matters specific to the renewal of this
special permit.
Sincerely,
~ .. ~[~p
F Associate Administrator for Pipeline Safety

<<<PAGE 2>>>

The Pipeline and Hazardous Materials Safety Administration (PHMSA)
Office of Pipeline Safety ( OPS)
Federal Special Permit Renewal Requirements
June2014
Special permits issued with an expiration date must be renewed prior to the expiration of the
special permit. Special permits requiring renewal are defined as: special permits issued with
an expiration date in the "limitations" section of the existing special permit. A notice of intent
to renew the expiring special permit must be made at least 180 days prior to the expiration.
Renewal requests sent by United States Postal Service mail, express mail, or overnight
courier. must be addressed to:
The Associate Administrator for Pipeline Safety
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Avenue, SE, East Building
Washington, DC 20590
To expedite the delivery of the renewal application and attachments, we encourage pipeline
operators to provide us with an electronic copy of the renewal application. The electronic
copy renewal request must be sent by e-mail to John.Gale@dot.gov and kay.mciver@dot.gov.
Please do not fax PHMSA renewal requests or documents.
PHMSA may seek additional operational, integrity or environmental assessment information
prior to granting any request for special permit.
The renewal application must contain:
(a) Special Permit: A copy of the original grant of the special permit.
(b) Docket: PHMSA Docket Number of the issued special permit
(c) Summary Report: A summary report that defines the following information from the
issuance of the special permit to present.
(i) Special Permit Number
(ii) Grantee, or Pipeline Owner or Operator:
1) Parent Company:
2) Executive Contact: Mailing Address, Phone Number and e-mail
address; and
3) Technical or Operational Contact: Mailing Address, Phone
Number and e-mail address.
(iii) Location of Special Permit: areas on the pipeline where the special
permit is applicable including: diameter, mile posts, county, and state.
Kern River Gas Transmission Company- PHMSA-2007-29078
Page 2 of 4

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(iii) Location of Special Permit: areas on the pipeline where the special permit
is applicable including: diameter, mile posts, county, and state.
(iv) Applicable Usage or Need of the Special Permit: original and future
including applicable Federal Code sections for special permit.
(v) Annual Report: A copy of each special permit annual report (Condition 47)
generated since the issuance of the special permit (maximum of 5 reports).
Annual reports may be consolidated into a single report. [Annual reports
on file. Not needed at this time.]
(vi) Operating Pressure for Special Permit Segment: Maximum allowable
operating pressure (MAOP).
(vii) High Consequence Areas (HCAs) for Special Permit Segment: HCA
boundaries on aerial photography; (If new HCAs have been added since the
special permit was granted.)
(viii) In-line inspection (ILl) for Special Permit Segments and Areas: ILl
survey summary results from all ILl tools used on the special permit
segments and areas during the previous four ( 4) years. The summary
should include any actionable anomalies or dents found, and all cracks in
pipe body, pipe seam or girth weld.
(ix) Integrity Data Integration Summary for Special Permit: Integrity data
integration summary must be based upon threats as identified in Condition
35(c) of the special permit.
(x) In-service incidents for Special Permit Segments and Areas: Any in-
service ruptures or leaks including repair type and failure investigation
findings; aerial photography of area, within the special permit segment and
special permit inspection area, if applicable.
(xi) Certification: A signed certification letter by a senior executive officer
stating that Kern River is meeting the requirements of Condition 55
requirements at time of the renewal request.
(xii) Special Permit Conditions: any suggested condition modifications required
to maintain safety and the environment.
(xiii) Summary Report: The summary report must demonstrate that the special
permit is still consistent with pipeline safety.
(d) Renewals: For renewal requests made at least 180 days before expiration and
conforming to the requirements of the renewal process, the special permit will
continue to be in effect until PHMSA takes a final administrative action on the
application. After all documents are reviewed and the Associate Administrator of
Pipeline Safety determines that the renewal of the Special Permit is consistent with
federal regulations for public safety and the environment, a letter of decision and an
updated special permit will be mailed to the operator. The renewal special permit letter
of decision, conditions, and analysis and findings will be placed in the corresponding
docket at www.Regulations.gov.
Kern River Gas Transmission Company- PHMSA-2007-29078
Page 3 of 4

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(e) State Partners: State partners in the affected state(s) will be notified of the renewal
application. A Federal Register Notice of the renewal application will be initiated for a
30-day comment period.
(f) Environmental Assessment: An Environmental Assessment (EA) may not be needed if
one was conducted and noticed for the original special permit. If an EA must be
conducted, then the renewal process will be lengthier. The operator will be responsible
for development and submission of the EA requirements. PHMSA will review the EA
for conformity to National Environmental Policy Act and federal pipeline regulations.
The EA will be publicized in the Federal Register for a comment period of 30 days.
PHMSA will notify the operator of any EA requirements after receipt of the renewal
application.
(g) Special Permit Decision Process: - Denial of renewal reqnest: If the Special Permit
request is denied, the denial will be handled in accordance with the denial procedures
including the appeal process outlined in 49 CFR § 190.341.
Kern River Gas Transmission Company- PHMSA-2007-29078
Page4 of4

<<<PAGE 1>>>

U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
1200 New Jersey Ave, S.E.
Washington, D.C. 20590
FEB 1 2 2015
Mr. RobertS. Checketts
Vice President, Operations, IT and Engineering
Kern River Gas Transmission Company
2755 E. Cottonwood Parkway, Suite 300
Salt Lake City, Utah 84121
Ref: Special Permit Renewal March 29, 2015 to March 29, 2020
PHMSA-2007 -29078
PHMSA-2009-0377
Dear Mr. Checketts:
By letter dated July 30, 2014, the Pipeline and Hazardous Materials Safety Administration
(PHMSA), Office of Pipeline Safety (OPS) notified the Kern River Gas Transmission
Company (Kern River) that the special permit granted to Kern River on March 29, 2010, to
waive compliance with certain federal regulations in 49 CFR §§ 192.111, 192.201, 192.505,
and 192.619 for the 1,380-mile Kern River pipeline system would expire on March 29, 2015,
unless renewed. The special permit allows Kern River to operate above the normal pipeline
72 percent of specified minimum yield strength (SMYS) operating pressures of 1,200 pounds
per square inch gauge (psig) up to 1,333 psig (80 percent SMYS) on the 36-inch mainline and
loop pipelines, and up to 1,350 psig in its compressor stations.
By letter dated August 29, 2014, and supplemented by additional correspondence, Kern River
applied for the renewal of the special permit and provided operational documentation to
justify the special permit renewal. On November 4, 2014, PHMSA published a Federal
Register notice announcing the renewal request (79 FR 65477). No public comments were
received. The special permit renewal request letter and all other pertinent documents are
available for review in Docket No. PHMSA-2007-29078 in the Federal Docket Management
System (FDMS) located at www.Regulations.gov.
PHMSA reviewed all operational and maintenance data submitted by Kern River for the
1,380 mile Kern River facilities that spans from the discharges of the Muddy Creek and
Painter Compressor stations, and at the Anschutz meter in Lincoln County, WY, to the outlet
side of the Daggett meter station in San Bernardino County, CA, to the mainline. PHMSA
finds that Kern River continues to meet the terms of the special permit and there has been no
material change in conditions. Based on the information provided by Kern River, PHMSA
has determined that renewal of the special permit would not be inconsistent with pipeline
safety.

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Accordingly, by this Order, and as described in the original special permit, PHMSA
grants the Kern River Gas Transmission Company a special permit renewal for
PHMSA-2007-29078 (PHMSA-2009-0377) to operate from March 29,2015, through
March 29, 2020, for the 1,380-mile Kern River pipeline system facilities. This special
permit renewal Order waives compliance with certain Federal regulations in 49 CFR
§§ 192.111, 192.201, 192.505, and 192.619, for the 1,380-mile Kern River pipeline system
facilities.
My staff would be pleased to discuss these special permits or any other regulatory matter with
you. Mr. Chris Hoidal, Director, PHMSA, OPS, Western Region, may be contacted at
720-963-3160, for operational matters specific to the renewal of this special permit. Mr. John
Gale, Director of Standards and Rulemaking Division, may be contacted at 202-366-0434 for
regulatory matters, and Mr. Ken Lee, Director of Engineering and Research Division, may be
contacted at 202-366-2694, for technical matters.
Sincerely,
-BXJ~
Jeffrey D. Wiese
Associate Administrator for Pipeline Safety
Page 2 of2
PHMSA-2007-29078 (PHMSA-2009-0377) Kern River Gas Transmission Company
March 29, 2015 to March 29, 2020

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NOV 6 2008
U.S. DEPARTMENT OF TRANSPORTATION
1
PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION (PHMSA)
SPECIAL PERMIT
Docket Number: PHMSA-2007-29078
Requested By:
Kern River Gas Transmission Company
Date Requested: August 20, 2007
Code Sections:
49 CFR $$ 192.111, 192.201, 192.505, and 192.619
Grant of Special Permit:
By this order, The Pipeline and Hazardous Materials Safety Administration (PHMSA) grants this
special permit to the Kern River Gas Transmission Company (Kern River) subject to the
conditions and limitations set forth below. This special permit waives compliance from 49 CFR
§$ 192.111, 192.201, 192.505 and 192.619 for the 1,380-mile Kern River pipeline system. For
the purposes of this special permit, the Kern River pipeline system means pipeline facilities
beginning at the discharges of the Muddy Creek and Painter compressor stations, and at the
Anschutz meter in Lincoln County, WY, to the outlet side of the Daggett meter station in San
Bernardino County, CA to the mainline. The Kern River pipeline system consists of 682 miles of
a 36-inch diameter mainline, 635 miles of 36-inch diameter loop lines, 10 compressor stations,
48 meter stations, 6 receipt laterals, and 7 delivery laterals.
The Federal pipeline safety regulations in § 192.111 limit the design factors' for steel natural gas
transmission pipelines for Class locations 1, 2 and 3 to the values in the following table:
Class
Maximum
Location
Design
Class
Maximum
Class
Maximum
Factor
Location
Design
Factor
Location
Design
General
1
Factor
0.72
2
0.60
3
0.50
Un-cased
road
0.60
2
0.50
3
crossings
0.50
Fabricated
Assembly
1
0.60
2
0.60
3
0.50
Supported
on Bridge
1
0.60
2
0.60
3
0.50
Stations
1
0.50
2
0.50
3
0.50
Pecied ministim yiche rength iS of tine pipe for examine. a rain pres or 102 were lame ore pipelin
essure to a value that results in a hoop stress level of 72% SMY.

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2
This special permit allows Kern River to raise the maximum allowable operating pressure
(MAOP) of the Kern River pipeline system from 1200 pounds per square inch gauge (psig) to
1333 psig in the mainline and loop lines and to 1350 psig in the compressor station pipe.
Accordingly, this special permit allows Ker River to operate the Kern River pipeline in Class
locations 1, 2 and 3 using the design factors in the following table:
Class
Maximum
Location
Design
Class
Maximum
Design
Class
Maximum
Factor
Location
Factor
Location
Design
Factor
General
1
0.80
2
0.67
3
0.56
Un-cased
road
1
0.67
2
0.56
3
crossings
0.56
Fabricated
1
Assembly
0.67
2
0.67
3
0.56
Supported
on Bridge
1
0.67
2
0.67
3
0.56
Stations
1
0.56
2
0.56
3
0.56
Because the proposed operating stress level of 80% specified minimum yield strength (SMYS) is
higher than the upper limit of the required overpressure protection under the existing Federal
pipeline safety regulations [i.e. 10% over MAOP or 75% SMYS], this special permit also allows
Kern River to design, install and operate pressure relief and limiting devices on the applicable
segment of the Kern River pipeline with a capacity that would ensure the pressure in Class
locations 1, 2 and 3 pipeline segments would not exceed 104% of the MAOP or the pressure that
produces a hoop stress of 83.2% SMYS in Class 1 locations, 69.7% SMYS in Class 2 locations
or 58.2% SMYS in Class 3 locations in the event an overpressure situation develops.
This special permit also waives the strength test requirements in § 192.505 and the MAOP
regulations in § 192.619, which allows Kern River to raise the MAOP of the applicable segment
of the Kern River pipeline from 1202 psig to 1336 psig.
For the purpose of this special permit, the "special permit area" means the area consisting of the
entire pipeline right-of-way for those sections along the applicable segment of the Kern River
pipeline that will operate above 72% SMYS in Class 1 locations, 60% SMYS in Class 2
' There are currently no class 4 locations on the Kern River Transmission Company Pipeline System. This special
permit does not apply to any future class 4 locations on the Kern River Transmission Company Pipeline System.

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locations or 50% SMYS in Class 3 locations.
3
:
PHMSA grants this special permit based on the findings set forth in the "Special Permit Analysis
and Findings" document, which can be read in its entirety in Docket No. PHMSA-2007-29078
in the Federal Docket Management System (FDMS) located on the Internet at
www.Regulations.gov.
Conditions:
PHMSA grants this special permit subject to the following conditions:
Steel Properties: The skelp/plate must be micro alloyed, fine grain, fully killed steel with
calcium treatment and continuous casting.
2) Manufacturing Standards: New pipe segments or replacement pipe must be manufactured
according to American Petroleum Institute Specification SL, Specification for Line Pipe
(API 5L), product specification level 2 (PSL 2), supplementary requirements (SR) for
maximum operating pressures and minimum operating temperatures. Pipe carbon
equivalents must be at or below 0.25% based on the material chemistry parameter (Pcm)
formula or 0.43% based on the C-IIW formula.
3)
Fracture Control: API SL, the American Society of Mechanical Engineers B31.8 Standard
(ASME B31.8) and other specifications and standards address the steel pipe toughness
properties needed to resist crack initiation, crack propagation and to ensure crack arrest
during a pipeline failure caused by a fracture. Kern River must institute an overall fracture
control plan addressing the steel pipe properties necessary to resist crack initiation and
crack propagation and to arrest a fracture within 8 pipe joints with a 99% occurrence
probability or within 5 pipe joints with a 90% occurrence probability. The plan must
include acceptable Charpy Impact values, which are measures of a steel pipeline's
toughness and resistance to fracture. The fracture control plan, which must be submitted to
PHMSA headquarters, must be in accordance with API 5L, Appendix F and must include
the following tests:
a)
SR 5A - Fracture Toughness Testing for Shear Area: Test results must indicate at
least 85% minimum average shear area for all X- 70 heats and 80% minimum shear
area for all X- 80 heats with a minimum result of 80% shear area for any single test.
The test results must also ensure a ductile fracture and arrest;
b) SR 5B - Fracture Toughness Testing for Absorbed Energy; and

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c) SR 6 - Fracture Toughness Testing by Drop Weight Tear Test for All New Pipeline
Segments or Pipe Replacements: Test results must be at least 80% of the average shear
area for all heats with a minimum result of 60% of the shear area for any single test.
The test results must also ensure a ductile fracture and arrest.
The above fracture initiation, propagation and arrest plan must account for the entire range
of pipeline operating temperatures, pressures and gas compositions planned for the pipeline
diameter, grade and operating stress levels, including maximum pressures and minimum
temperatures for shut-in conditions associated with the special permit area. Where the use
of stress factors, pipe grade, operating temperatures and gas composition make fracture
toughness calculations non-conservative, correction factors must be used. If the fracture
control plan for the pipe in the special permit area does not meet these specifications, Kern
River must submit to PHMSA headquarters an alternative plan providing an acceptable
method to resist crack initiation, crack propagation and to arrest ductile fractures in the
special permit area.
4) Steel Plate Quality Control for All New Pipeline Segments or Pipe Replacements: The
steel mill and/or pipe rolling mill must incorporate a comprehensive plate/coil mill and
pipe mill inspection program to check for defects and inclusions that could affect the pipe
quality. This program must include a plate or rolled pipe ultrasonic testing (UT) inspection
program to check for imperfections such as laminations. UT inspection must be conducted
on all factory beveled pipe ends. In addition, pipe body UT inspection must be conducted
on a minimum of 100% of pipe joints and all ends, with a minimum coverage of 35% of
the pipe body for those joints inspected. Any laminations identified by the UT inspection
program must be evaluated in accordance with the acceptance criteria defined in ASTM
International Standard ASTM A578/A578M "Standard Specification for Straight-Beam
Ultrasonic Examination of Rolled Steel Plates for Special Applications (ASTM A578),"
Level B or API 5L Paragraph 7.8.10. An inspection protocol for centerline segregation
evaluation using a test method referred to as slab macro-etching must be employed to
check for inclusions that may form as the steel plate cools after it has been cast. A
minimum of one macro-etch or a suitable alternative test must be performed from the first
or second heat (manufacturing run) of each sequence (approximately 4 heats) and graded
on the Mannesmann scale or equivalent. Test results with a Mannesmann scale rating of
one or two out of a possible four or five scale are acceptable.
Pipe Seam Quality Control for All New Pipeline Segments or Pipe Replacements: A
quality assurance program must be instituted for pipe weld seams. The pipe weld seam

<<<PAGE 5>>>

tests must meet the minimum requirements for tensile strength in API 5L for the
5
appropriate pipe grade properties. A pipe weld seam hardness test using the Vickers
hardness testing of a cross-section from the weld seam must be performed on one length of
pipe from each heat. The maximum weld seam and heat affected zone hardness must be a
maximum of 280 Vickers hardness (Hv10). The hardness tests must include a minimum of
3 readings for each heat affected zone, 3 readings in the weld metal and 2 readings in each
section of pipe base metal for a total of 13 readings. The pipe weld seam must be 100%
UT inspected after expansion and hydrostatic testing per API 5L.
6) Mill Hydrostatic Test for All New Pipeline Segments or Pipe Replacements: The pipe
must be subjected to a mill hydrostatic test to achieve a minimum stress level of 95%
SMYS in the pipe for a minimum duration of 10 seconds. The 95% stress level may be
achieved using a combination of internal test pressure and the application of end loads
imposed by the hydrostatic testing equipment as allowed by API 5L, Appendix K
7)
Pipe Coating for All New Pipeline Segments or Pipe Replacements: The application of a
corrosion resistant coating to the steel pipe must be subject to a coating application quality
control program. The program must address pipe surface cleanliness standards, blast
cleaning, application temperature control, adhesion, cathodic disbondment, moisture
permeation, bending, minimum coating thickness, coating imperfections and coating repair.
The pipe for existing pipeline segments, new pipeline segments and/or replacements must
be protected against external corrosion by a non-shielding coating.
Field Coating for All New Pipeline Segments or Pipe Replacements: A field girth weld
joint coating application specification and quality standards to ensure pipe surface
cleanliness, application temperature control, adhesion quality, cathodic disbondment,
moisture permeation, bending, minimum coating thickness, holiday detection and repair
quality must be implemented in field conditions. Field joint coatings must be non-
shielding to cathodic protection (CP). Field coating applicators must use valid coating
procedures and be trained to use these procedures.
Field Coating: The coatings on existing girth weld joints must be non-shielding to CP.
10) Coatings for Trenchless Installation for All New Pipeline Segments or Pipe Replacements:
Coatings used for directional bore, slick bore and other trenchless installation methods
must resist abrasions and other damages that may occur due to rocks and other obstructions
encountered in this installation technique.
11) Bends Quality: Certification records of factory induction bends and/or factory weld bends
must be obtained and retained. All bends, flanges and fittings must have carbon

<<<PAGE 6>>>

equivalents (CE) below 0.42 or a pre-heat procedure must be applied prior to welding for
CE above 0.42.
12) Design Factor - Pipelines: Pipe installed under this special permit in Class 1 location may
use a design factor of 0.80, in Class 2 locations may use a design factor of 0.67 and in
Class 3 locations may use a design factor of 0.56. Road crossings in Class 1 and 2
locations may use a design factor of 0.67 and 0.56, respectively. New road crossings,
railroad crossings and fabricated assemblies must be designed using the existing design
factors in § 192.111(b) and (c).
13) Fittings: All pressure rated fittings and components (including flanges, valves, gaskets,
pressure vessels and compressors) must be rated for a pressure rating commensurate with
the MAOP and class location of the pipeline. Designed fittings (including tees, elbows and
caps) must have the same design factor as the adjacent pipe.
14) Temperature Control: The compressor station discharge temperature must be limited to
120° Fahrenheit. A temperature above this maximum temperature of 120° Fahrenheit may
be approved if Kern River's technical coating operating tests show that the pipe coating
will properly withstand the higher operating temperature for long term operations. If the
temperature exceeds 120° Fahrenheit, Kern River must also institute a coating monitoring
program in these areas using ongoing Direct Current Voltage Gradient (DCVG) surveys or
Alternating Current Voltage Gradient (ACVG) surveys or other testing to demonstrate the
integrity of the coating. This program and results must be provided to the Director,
PHMSA Western Region at least 60 days prior to implementation of the increased
temperature or special permit operations.
15) Overpressure Protection Control: Mainline pipeline overpressure protection must be
limited to a maximum of 104% MAOP.
16) Welding Procedures for All New Pipeline Segments or Pipe Replacements: For automatic
or mechanized welding the 19' Edition of API 1104, "Welding of Pipelines and Related
Facilities", will be used for welding procedure qualification, welder qualification and weld
acceptance criteria. Operator will use the 19th Edition of API 1104 for all other welding
processes. The Director, PHMSA Western Region must be notified at least 14 days prior to
the beginning of any welding procedure qualification activities. Automated or manual
welding procedure documentation must be submitted to the same PHMSA regional office.
17) Depth of Cover: The soil cover must be a minimum depth of 36 inches in all areas. In
areas where threats from chisel plowing or other activities are threats to the pipeline, the
top of the pipeline must be installed at least one foot below the deepest penetration above

<<<PAGE 7>>>

7
the pipeline. If routine patrols or other observed conditions indicate the possible loss of
cover over the pipeline, Kern River will perform a depth of cover study and replace cover
as necessary to meet the minimum depth of cover requirements specified herein. If
replacing cover is not practical, the Director, PHMSA Western Region may agree to an
alternate plan to assure safety in these areas.
18) Construction Quality for All New Pipeline Segments or Pipe Replacements: A construction
quality assurance plan to ensure quality standards and controls must be maintained
throughout the construction phase with respect to: inspection, pipe hauling and stringing,
field bending, welding, non-destructive examination (NDE) of girth welds, field joint
coating, pipeline coating integrity tests, lowering of the pipeline in the ditch, padding
materials to protect the pipeline, backfilling, alternating current (AC) interference
mitigation and CP systems. All girth welds must be non-destructively examined by
radiography or alternative means. The NDE examiner must have all required and current
certifications.
19) Interference Currents Control: Control of induced AC from parallel electric transmission
lines and other interference issues that may affect the pipeline must be incorporated into the
design of the pipeline and addressed during the construction phase. Issues identified and
not originally addressed in the design phase must be brought to PHMSA's attention by
notifying the appropriate regional office. An induced AC program to protect the pipeline
from corrosion caused by stray currents must be in place within six months after placing
the pipeline in service.
20) Test Level for All New Pipeline Segments or Pipe Replacements: The pre-in service
hydrostatic test must be to a pressure producing a hoop stress of at least 100% SMYS and
1.25 X MAOP in areas to operate to 80% SMYS, at least 1.50 X MAOP in areas to operate
up to 67% SMYS, and at least 1.50 X MAOP in areas to operate up to 56% SMYS.
21) Uprating Existing Pipeline Segments: Kern River must meet one of the following criteria
in Condition 21 (a), (b), or (c), prior to uprating any existing pipeline segment in the
special permit area to an MAOP above 72% SMYS in Class 1 locations, 60% SMYS in
Class 2 locations or 50% SMYS in Class 3 locations:
a) Hydrostatic Tests: Class 1, 2, and 3 locations in the special permit area must have been
hydrostatically tested prior to the grant of this special permit as follows:
1) Class 1 and Class 2 locations containing a high consequence area (HCA) per 49 CFR
Part 192, Subpart O - the pipeline segment must be hydrostatically pressure tested to at
least 1.25 X MAOP.

<<<PAGE 8>>>

2) Class 3 locations - the hydrostatic test pressure must be a minimum of 1.40 x
8
MAOP.
3) Whenever a change in class location has occurred anywhere within the special
permit area prior to uprating the existing pipeline segment (e.g. Class 1 to 2 or Class 2
to 3), the class change location must meet the hydrostatic test and repair requirements
of Conditions 43, 51 and 52.
b) Overpressure Protection: Class 1, Class 2 and Class 3 locations - in lieu of
hydrostatically pressure testing a pipeline segment in accordance with Condition 21 a)
above, Kern River may operate the pipeline segment taking into account the pressure
gradient provided they install protection against accidental overpressure in accordance
with the existing requirements in $$192.195, 192.199, and 192.201.
c) Pressure Gradient Monitoring: Class 1, Class 2 and Class 3 locations - in lieu of
hydrostatically pressure testing a pipeline segment in accordance with Condition 21 (a)
and installing overpressure protection in accordance with Condition 21 (b) above, Kern
River may operate the pipeline segment taking into account the pipeline pressure
gradient provided they install overpressure protection and use operating procedures
designed to prevent accidental overpressure of the pipeline in accordance with the
following requirements:
1) The written operating procedures must include pressure gradient monitoring along
the pipeline at mainline valves as operating conditions change with updated gas flow
models,
2) Two operational pressure sensors must be installed at each mainline valve upstream
of pipeline segments that do not meet the criteria of Conditions 21 (a) and (b) above,
and must be tied into the SCADA system and set-up to limit and control compressor
discharge pressures based upon the gas flow gradient model and pressure of the gas
along the pipeline so as not to exceed the limits of Conditions 21 (a) and b),
3) A review and training of written operating procedures and gas gradient flow models
must be conducted with gas controllers responsible for these operating procedures at
least once each calendar quarter,
4) Pressure sensors must be calibrated once each calendar year at intervals not to
exceed 15 months, and
5) Whenever a change in class location has occurred anywhere within the special
permit area prior to the grant of this special permit (e.g. Class 1 to 2 or Class 2 to 3), the
class change location must meet the requirements of Conditions 43 and 52 of this

<<<PAGE 9>>>

special permit.
9
22) Assessment of Test Failures: Any pipe failure occurring during a pre-in service hydrostatic
test or a hydrostatic test of an existing pipeline segment must undergo a root cause failure
analysis to include a metallurgical examination of the failed pipe. The results of this
examination must preclude a systemic pipeline material issue and the results must be
reported to PHMSA headquarters and to the Director, PHMSA Western Region.
23) Supervisory Control and Data Acquisition (SCADA) System Capabilities: A SCADA
system to provide remote monitoring and control of the pipeline system must be employed.
24) SCADA Procedures: A detailed procedure for establishing and maintaining accurate
SCADA set points must be established to ensure the pipeline operates within acceptable
design limits at all times.
25) Mainline Valve Control: Mainline valves located on either side of a pipeline segment
containing a High Consequence Area (HCA) where personnel response time to the valve
exceeds one hour must be remotely controlled via the SCADA system. The SCADA
system must be capable of closing these mainline valves and monitoring the valve position,
as well as upstream pressure and downstream pressure at the mainline valve. As an
alternative, a leak detection system for mainline valve control is acceptable.
26) Pipeline Inspection: The pipeline must be capable of passing in-line inspection (ILI) tools.
All headers and other segments covered under this special permit that do not allow the
passage of an ILI device must have a corrosion mitigation plan.
27)
Gas Quality Monitoring: An acceptable gas quality monitoring and mitigation program
must be instituted to not exceed the following limits:
a) H¿S (1.0 grain per 100 standard cubic feet or 16 parts per million (ppm), maximum);
b) CO2 (3% maximum);
c) H2O (less than or equal to 7 pounds per million standard cubic feet and no free water):
and
d) Other deleterious constituents that may impact the integrity of the pipeline.
28) The pipeline must have an ongoing pigging and liquids sampling plan to identify, mitigate
and remove deleterious constituents, where applicable.
29) If H¿S is above 8 ppm, the gas stream constituents must be reviewed for implementation of
a quarterly pigging/inhibitor injection program, including follow up sampling of liquids at
receipt points.
30) Gas Quality Control: Separators or filters/separators must be installed at locations where
gas is received into the pipeline where the incoming gas stream quality includes potentially

<<<PAGE 10>>>

deleterious free liquids and/or particulates to minimize the entry of contaminants and to
10
protect the integrity of downstream pipeline segments.
31) Gas Quality Monitoring Equipment: Equipment, including moisture analyzer,
chromatograph and semi-annual HaS sampling (quarterly sampling where HaS is above
8 ppm), must be installed to permit the operator to manage and limit the introduction of
contaminants and free liquids into the pipeline.
32) Interference Current Surveys: Interference surveys must be performed before increasing
the pressure above the existing MAOP to ensure compliance with applicable NACE
International Standard Practices 0169 and 0177 (NACE SP 0169 and NACE SP 0177) for
interference current levels. If interference currents are found, Kern River will determine if
there have been any adverse effects to the pipeline and mitigate the effects as necessary.
Kern River will report the results of any negative finding and the associated mitigative
efforts to the Director, PHMSA Western Region.
33) Verification of Cathodic Protection: An interrupted close interval survey (CIS) must be
performed in concert and integrated with ILI in accordance with 49 CFR Part 192, Subpart
O reassessment intervals for all HCA pipeline mileage. At least one CP test station must be
located within each HCA with a maximum spacing between test stations of one-half mile
within an HCA. If any annual test station reading fails to meet 49 CFR Part 192, Subpart I
requirements, remedial actions must occur within six months. Remedial actions must
include a CIS on each side of the affected test station and all modifications to the CP
system necessary to ensure adequate external corrosion control. If one-half mile spacing
between test stations is not practical, the PHMSA Regional Director of the Western Region
may agree to an alternate plan to verify cathodic protection in these areas.
34) Initial Close Interval Survey (CIS) - Initial: Kern River must have performed a CIS on the
pipeline in the special permit area within the two years immediately prior to the increase in
operating pressure above the existing MAOP or a CIS must be completed within one year
after the pressure increase. The CIS results must be integrated with the ILI results to
determine whether any further action is needed.
35) Coating Assessment: To verify the pipeline coating conditions and to remediate any
integrity issues, Kern River must perform a DCVG survey or an ACVG survey of the
following not later than one year after the grant of this special permit.
a) all piping in the special permit area that has operated above 120 degrees Fahrenheit,
b) all Class 1 locations with structures within 300 feet of the pipeline,
c) all Class 2 and all Class 3 locations; and

<<<PAGE 11>>>

d) all HCAs.
11
A DCVG or ACG survey and remediation need not be performed if Kern River has
performed a DCVG or ACG and remediation survey of the above, and completed the
remediation of any integrity issue within the two years prior to the grant of this special
permit. Kern River must remediate any damaged coating indications found during these
assessments that are classified as moderate (i.e. 15% IR and above for DCVG or 35 dBuV
and above for ACVG) or severe based on NACE International Recommended Practice
0502-2002, Pipeline External Corrosion Direct Assessment Methodology, (NACE RP
0502-2002). A minimum of two coating survey assessment classifications must be
excavated, classified and/or remediated per each survey crew and compressor station
discharge section. If factors beyond Kern River's control prevent the completion of the
DCVG or ACVG survey and remediation within one year, a DCVG or ACG survey and
remediation must be performed as soon as practicable and a letter justifying the delay and
providing the anticipated date of completion must be submitted to the Director, PHMSA
Western Region not later than one year after the grant of this special permit.
36) Pipeline Markers: Kern River must employ line-of-sight markings on the pipeline in the
special permit area except in agricultural areas or large water crossings such as lakes
where line-of-sight markers are not practical. The marking of pipelines is also subject to
Federal Energy Regulatory Commission orders or environmental permits and local
restrictions.
37) Pipeline Patrolling: Pipeline patrolling must be conducted at least monthly (12 times per
calendar year), not to exceed 45 days, to inspect for excavation activities, ground
movement, wash-outs, leakage or other activities and conditions affecting the safe
operation of the pipeline.
38)
Monitoring of Ground Movement: An effective monitoring/mitigation plan must be in
place to monitor for and mitigate issues of unstable soil and ground movement.
39)
Initial ILI: Kern River must have performed an initial ILI inspection of the pipeline in the
special permit area within the three years immediately prior to the increase in operating
pressure above the existing MAOP or the two years immediately after the increase in
pressure using a high-resolution magnetic flux leakage (MFL) tool and a geometry tool.
The results of the initial ILI must be integrated with the initial CIS required per condition
34 above. Kern River must evaluate and repair all "Repair Immediately" and "Repair
within One Year" anomalies (based on previous ILI inspections) in accordance with
condition 43 below prior to increasing the pressure above the existing MAOP.

<<<PAGE 12>>>

40) Future ILI: A second ILI using a high-resolution MFL must be completed on the
12
pipeline in the special permit area within the first reassessment interval required by
49 CFR Part 192, Subpart O, regardless of HCA classification. Future ILI must be
performed on a frequency consistent with Subpart O on the pipeline in the special permit
area.
41) Direct Assessment Plan: Headers, mainline valve bypasses and other sections in the
special permit area that cannot accommodate ILI tools must be part of a Direct Assessment
(DA) plan or other acceptable integrity monitoring method using External and Internal
Corrosion Direct Assessment (ECDA/ICDA) criteria. The assessment much be performed
within one year prior to the increase in operating pressure above the existing MAOP.
42) Damage Prevention Program: The Common Ground Alliance's (CGA) damage prevention
best practices applicable to pipelines must be incorporated into Kern River's damage
prevention program.
43) Anomaly Evaluation and Repair: Anomaly evaluations and repairs in the special permit
area, regardless of HCA status, must be performed based upon the following:
a) Anomaly Response Time: Repair Immediately
- Any anomaly within a special permit area operating up to 80% SMYS with a
failure pressure ratio (FPR) equal to or less than 1.1 and/or an anomaly depth equal
to or greater than 60% wall thickness loss.
- Any anomaly within a special permit area operating up to 67% SMYS with an FPR
equal to or less than 1.25 and/or an anomaly depth equal to or greater than 60% wall
thickness loss.
- Any anomaly within a special permit area operating up to 56% SMYS with an FPR
equal to or less than 1.4 and/or an anomaly depth equal to or greater than 60% wall
thickness loss.
b) Anomaly Response Time: Repair Within One Year
- Any anomaly within a special permit area operating at up to 80% SMYS with a
FPR equal to or less than 1.25 and/or an anomaly depth equal to or greater than
40% wall thickness loss.
- Any anomaly within a special permit area operating at up to 67% SMYS with a
FPR equal to or less than 1.5 and/or an anomaly depth equal to or greater than 40%
wall thickness loss.

<<<PAGE 13>>>

13
- Any anomaly within a special permit area operating at up 56% SMYS with an
FPR equal to or less than 1.8 and/or an anomaly depth equal to or greater than 40%
wall thickness loss.
c) Anomaly Response Time: Monitored Conditions
- Anomalies not requiring immediate or one year repairs per paragraphs (a) and (b)
above must be reassessed according to 49 CFR Part 192, Subpart O reassessment
intervals.
- Each anomaly not repaired under the immediate repair requirements must have a
corrosion growth rate and ILI tool tolerance assigned per the Gas Integrity
Management Program (IMP) to determine the maximum re-inspection interval.
d) Anomaly Assessment Methods
- Kern River must confirm the remaining strength (R-STRENG) effective area
method, R-STRENG - 0.85dL, and ASME B31G assessment methods are valid for
the pipe diameter, wall, thickness, grade, operating pressure, operating stress level
and operating temperature. Kern River must use the most conservative method
until confirmation of the proper method is made to PHMSA Headquarters.
- Dents in the pipe in the special permit area must be evaluated and repaired per
49 CFR § 192.309(b) for the baseline geometry tool run and per 49 CFR
$ 192.933(d) for future ILI
44) Potential Impact Radius Calculation Updates: If the pipeline operating pressures and gas
quality are determined to be outside the parameters of the C-FER Study, a revised study
with the updated parameters must be incorporated into the IMP.
45) Reporting - Immediate: Kern River must notify the Director, PHMSA Western Region
within 24 hours of any non-reportable leaks occurring in the special permit area.
46) Reporting - 30 Day: At least 30 days prior to an increase in operating pressure above the
existing MAOP, Kern River must report on its compliance with the special permit
conditions to PHMSA headquarters and to the Director, PHMSA Western Region.
a) Special Permit Conditions 1-27, 32, 33, 35, 36, 38, 39, 41-44, 46, and 48-55 must be
completed and implemented with documentation available for PHMSA review prior to
operating at a pressure above the existing MAOP.
b) Special Permit 1-55 must be included in the operator's written operating and
maintenance (O&M) procedures manual concerning permit condition requirements
with documentation available for PHMSA review prior to operating at a pressure above
the existing MAOP.

<<<PAGE 14>>>

47) Annual Reporting: Kern River must report the following to the Director, PHMSA
14
Western Region annually:
a) The results of any ILl or direct assessment results performed within the special permit
area during the previous year;
b) Any new integrity threats identified within the special permit area during the previous
year;
c) The number of new residences, other structures intended for human occupancy and
public gathering areas built within the special permit area;
d) Any class or HCA changes in the special permit area during the previous year;
e) Any reportable incidents associated with the special permit area that occurred during
the previous year;
f Any leaks on the pipeline in the special permit area that occurred during the previous
year;
g) A list of all repairs on the pipeline in the special permit area made during the previous
year;
h) On-going damage prevention initiatives on the pipeline in the special permit area and a
discussion of their success or failure;
i) Any changes in procedures used to assess and/or monitor the pipeline operating under
this special permit; and
j) Any company mergers, acquisitions, transfers of assets, or other events affecting the
regulatory responsibility of the company operating the pipeline to which this special
permit applies.
48) Threat Identification and Evaluation: Kern River must develop a threat matrix consistent
with § 192.917 to accomplish the following:
a) Identify and compare any increased risks of operating the pipeline at the higher stress
levels allowed by this special permit as compared to the conventional operation; and
b) Describe and implement procedures used to mitigate the risk.
49) Public Education: Kern River must recalculate the potential impact circle as defined in
§ 192.903 using the new MAOP. At a minimum, Kern River must then amend its public
education program as required by § 192.616 as follows:
a) Include persons occupying property within special permit area and within the potential
impact circle in the targeted audience; and
Annual reports must be received by PHMSA by the last day of the month in which the Special Permit is dated. For
example, the annual report for a Special Permit dated March 4, 2008, must be received by PHMSA no later than
March 31" each year beginning in 2009.

<<<PAGE 15>>>

b) Include information about the integrity management activities required by this special
15
permit within the message provided to the audience.
50) Right-of-Way Management Plan: Kern River must develop and implement a right-of-way
management plan to protect the Kern River pipeline from damage due to excavation, third
party and other activities. In any areas where increased activities or natural forces could
lead to increased threats to the pipeline beyond the initial threat conditions, the
management plan must include increased inspections. The management plan must also
include right-of-way inspection activities to complement the following:
- Depth of Cover (condition 17)
- Pipeline Markers (condition 36)
- Pipeline Patrolling (condition 37)
- Monitoring of Ground Movement (condition 38)
- Damage Prevention Program (condition 42)
- Threat Identification and Evaluation (condition 48)
- Public Education (condition 49)
51) Change in Class Location: Whenever an increase in population density along the Kern
River pipeline indicates a change in class location, Ker River must confirm or revise the
MAOP in accordance with §§ 192.609 and 192.611 except as follows:
a) For segments operating at an increased MAOP in accordance with this special permit
that meet the pressure test requirements in Condition 21, the corresponding hoop stress
of the pipe may not exceed 80% SMYS in Class 2 locations or 67% SMYS in Class 3
locations.
b) For segments operating at an increased MAOP in accordance with this special permit
but not meeting the pressure test requirements in Condition 21, the corresponding hoop
stress of the pipe may not exceed 72% SMYS in Class 2 locations or 60% SMYS in
Class 3 locations. Class location changes in the special permit area after issuance of
this MAOP Special Permit must be hydrostatically tested in accordance with § 192.611.
52) Change in Class Location - Anomaly Repair: Kern River must evaluate and repair all
anomalies on any pipeline segment in the special permit area that has changed from a
Class location 1 to a Class location 2, or from a Class location 2 to a Class location 3, in
accordance with condition 43 above based upon the "original pipeline class location".
53) Records: Kern River must maintain those records demonstrating compliance with all
conditions of this special permit for the useful life of the pipeline.
54) Qualification of Personnel: For the purpose of this special permit, a "covered task" is any

<<<PAGE 16>>>

16
task that meets the requirements in § 192.801(b) and any construction task associated
with implementing the increased MAOP allowed by this special permit that can affect the
integrity of the pipeline segment. This includes, but is not limited to, tasks associated with
construction or pipe replacement activities. Personnel performing these covered tasks on
the Kern River pipeline must be qualified in accordance with 49 CFR Part 192, Subpart N.
55) Certification: A senior executive officer of Kern River must certify in writing the
following:
a) That the Kern River pipeline meets the conditions described in this special permit,
b) That the written manual of O&M procedures for the Kern River pipeline has been
updated to include all additional operating and maintenance requirements of this special
permit; and
c) That Kern River has reviewed and modified its damage prevention program relative to
the Kern River pipeline to include any additional elements required by special permit.
Kern River must send a copy of the certification with the required senior executive
signature and date of signature to the Director, PHMSA Western Region at least 30 days
prior to operating the Kern River pipeline at a pressure above the existing MAOP.
56) Repair Pipe for Anomaly Remediation/Repairs: Kern River may use their existing stocks of
originally purchased pipe for minor anomaly remediation/repairs, but these
remediation/repairs must not exceed 5 contiguous pipe joints at a location. The original
stock pipe may be used for pipe sleeves for anomaly repair. Whenever this pipe is used, it
must be installed in accordance with Conditions 7 through 55 of this special permit.
Limitations:
PHMSA grants this special permit subject to the following limitations:
1) PHMSA has the sole authority to make all determinations on whether Kern River has
complied with the specified conditions of this special permit.
2) Should Kern River fail to comply with any of the specified conditions of this special permit,
PHMSA may revoke this special permit and require Kern River to comply with the
regulatory requirements in 49 CFR § 192.111, § 192.201, § 192.505, and § 192.619.
3) PHMSA may revoke, suspend or modify a special permit based on any finding listed in
49 CFR § 190.341(h)(1) and require Kern River to comply with the regulatory requirements
in 49 CFR § 192.111, § 192.201, § 192.505, and § 192.619.
4) Should PHMSA revoke, suspend or modify a special permit based on any finding listed in
49 CFR § 190.341(h)(1), PHMSA will notify Kern River in writing of the proposed action

<<<PAGE 17>>>

:
and provide Kern River an opportunity to show cause why the action should not be taken
17
:
unless PHMSA determines that taking such action is immediately necessary to avoid the risk
of significant harm to persons, property or the environment (see 49 CFR $ 190.341(h)(2)).
5) The terms and conditions of any corrective action order, compliance order or other order
applicable to a pipeline facility covered by this special permit will take precedence over the
terms of this special permit in accordance with 49 CFR § 190.341(h)(4).
AUTHORITY: 49 U.S.C. 60118(c) and 49 CFR § 1.53.
Issued in Washington, DC on
NOV
6 2008
Buriese
Jeffrey D. Wiese,
Associate Administrator for Pipeline Safety

<<<PAGE 1>>>

U.S. Department
of Transportation
1200 New Jersey Ave., S.E
Nashington, DC 20590
Materials Safety
Pipeline and Hazardous
NOV
6 2008
Administration
Mr. Michael G. Dunn, P.E.
President
Kern River Gas Transmission Company
2755 East Cottonwood Parkway
Salt Lake City, Utah 84121
Docket No. PHMSA-2007-29078
Dear Mr. Dunn:
On August 20, 2007, you wrote the Pipeline and Hazardous Materials Safety Administration
(PHMSA) requesting a special permit to waive compliance from PHMSA's pipeline safety
regulation 49 CFR, in sections 192.111, 192.201, 192.505 and 192.619, for the Kern River
Gas Transmission Company (Kern River). The waiver seeks relief for Kern River to operate
its pipeline system at a design factor of up to 0.80 in Class 1 areas, 0.67 in Class 2 areas and
0.56 in Class 3 areas and compressor stations.
On October 13, 2008, PHMSA published the final rule, Standards for Increasing the
Maximum Allowable Operating Pressure for Gas Transmission Pipelines, which becomes
effective 30 days after publication. The rule covers the requirements for any pipeline to
operate at a design factor of up to 0.80 in Class 1 areas. PHMSA is proceeding with issuing
the Kern River special permit as a result of the thorough analysis contained in the Special
Permit Analysis and Findings document, prepared well in advance of the final rule.
Moreover, since the Kern River pipeline varies from certain provisions of the final rule, this
special permit is necessary to cover all requested variances from regulations and required
conditions, and is consistent with, or more stringent than, prior grants of special permit for
existing pipelines.
By the enclosed order, PHMSA is granting this special permit which pertains to the Kern
River pipeline facilities beginning at the discharges of the Muddy Creek and Painter
compressor stations, and at the Anschutz meter in Lincoln County, WY, to the outlet side of
the Daggett meter station in San Bernardino County, CA to the mainline. This special permit
has conditions and limitations as specified in items 1 through 56, and 1 through 5,
respectively.

<<<PAGE 2>>>

My staff would be pleased to discuss this special permit or any other regulatory matter with
you. John Gale, Director of Regulations (202-366-0434), may be contacted on regulatory
matters and Alan Mayberry, Director of Engineering and Emergency Support (202-366-
5124), may be contacted on technical matters specific to this special permit.
Sincerely,
Jeffrey D. Wiese
Associate Administrator for Pipeline Safety
Enclosure

## Provenance

- Official: Yes
- Source: <https://www.regulations.gov/docket/PHMSA-2007-29078>
- Source ID: `phmsa-special-permits`
- SHA-256: `949795d7facfb94bec0d8fa60bf0fff52352648490b8d3d6b08b5a35a83697c0`
- Retrieved: 2026-08-20T01:06:17.853Z
- Exported: 2026-08-24T10:33:54.642Z
- Document slug: `phmsa-special-permit-phmsa-2007-29078`

### Source metadata

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  "system": "Gas Transmission",
  "issuedOn": "2008-11-06",
  "issuanceStatus": "issued",
  "renewal": "Mar 3, 2020",
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      "postedDate": "2008-11-19",
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  "operatorName": "Kern River Gas Transmission Company"
}
```
