HomeMy WebLinkAboutE-6 CPUC Letter of SupportCONSENT ITEM
E-6
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
VIA: TROY L. BUTZLAFF, ICMA-CM, CITY MANAGER
FROM: LOUIE F. LACASELLA, MANAGEMENT ANALYST
DATE: OCTOBER 3, 2016
SUBJECT: CONSIDERATION OF A LETTER TO THE CALIFORNIA PUBLIC UTILITIES
COMMISSION URGING ADOPTION OF RECOMMENDATIONS ON NATURAL
GAS LEAKAGE ABATEMENT
SUMMARY:
In 2014, Governor Brown signed the Gas Pipeline Leak Repair and Emissions Reduction Act (SB 1371)
to require adoption of rules and procedures to minimize natural gas leakage from California Public
Utilities Commission (CPUC) regulated natural gas pipelines. In January 2015, the CPUC initiated
Rulemaking (R.) 15-01-008 to investigate best practices for leak surveys, patrols, leak survey
technology, leak prevention, and leak reduction. In March 2016, the CPUC and California Air Resources
Board (CARE) working group submitted its summary of best practices and staff recommendations
(Attachment 1). The proposed action, requests that the City Council, consider issuing a letter
(Attachment 2) to the CPUC urging them to adopt the recommendations on Natural Gas Leakage
Abatement.
RECOMMENDATION:
Staff recommends that the City Council consider the following action:
1) Send a letter to the California Public Utilities Commission (CPUC) urging them to adopt the
Recommendations on Natural Gas Leakage Abatement.
DISCUSSION:
In 2014, Governor Brown signed the Gas Pipeline Leak Repair and Emissions Reduction Act (SB 1371)
to require adoption of rules and procedures to minimize natural gas leakage from CPUC regulated
natural gas pipelines. In January 2015, the CPUC initiated Rulemaking (R.) 15-01-008 to investigate
best practices for leak surveys, patrols, leak survey technology, leak prevention, and leak reduction. In
March 2016, the CPUC and California Air Resources Board (CARE) working group submitted its
summary of best practices and staff recommendations (Attachment 1). The CPUC and CARE summary
of best practices and staff recommendations focus on the following areas:
Approved
Council Meeting
10/03/2016
Letter of Support to the CPUC
October 3, 2016
Page 2
Policies and Procedures
Leak Detection
Records Management
Leak Repair
Personnel Training
Leak Prevention
Experienced and Trained Personnel
Pursuant to the proposed recommendations, utilities would be required to create and file with the CPUC
and CARB, a compliance plan to compel utilities to self-audit and certify which best practices will be
used to mitigate gas leaks and emissions.
The CPUC is proposing to require all utilities to engage in best proven practices, such as mobile
mounted methane sensors and online leak maps. Additionally, utilities may be required to conduct leak
surveys of gas systems every three years instead of every five years; install new stationary methane
detection devices at certain sites; and list how many leaks they have by zip code or other metric, as
opposed to system wide.
Currently, it is permissible for utilities that detect a leak, if the leak does not present an immediate public
safety concern, to not fix the leak, but rather to monitor said leaks. The proposed staff recommendation
would implement a "Find It Fix It Policy." The Commission would establish a certain threshold and
leaks exceeding said threshold would be required to be repaired on an accelerated timeline, within one
year from discovery. In addition, utilities would be required to eliminate their backlog of above ground
leaks by October 1, 2018.
In addition, the CPUC is proposing to require changes to utilities policies that establish the basis framing
of gas leaks and the importance of prevention. Specifically, utilities will be required to state that
methane is a potent greenhouse gas that must be prevented from escaping to the atmosphere, that non-
emergency venting to the atmosphere is only permitted after significant steps are taken, and that worker
training programs on why it is important to reduce and/or eliminate methane emissions are required.
The attached letter urges the CPUC to adopt the recommendations on Natural Gas Leakage Abatement
to further reduce the risk of damage to the environment and workplaces from explosions, air pollution,
and other climate change impacts
FISCAL IMPACT:
There is no fiscal impact associated with the recommended action.
Prepared by: Reviewed and Approved:
Louie F. Lacasella Troy L. Butzlaff, ICMA-CM
Management Analyst City Manager
Attachments:
1) Natural Gas Leakage Abatement Summary of Best Practices and Staff Recommendation
2) Draft Letter of Support
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CEK/ek4 3/24/2016
BEFORE THE PUBLIC UTILITIES COMMISSION OF THE STATE OF CALIFORNIA
Order Instituting Rulemaking to Adopt
Rules and Procedures Governing
Commission-Regulated Natural Gas
Pipelines and Facilities to Reduce Natural
Gas Leakage Consistent with Senate
Bill 1371.
Rulemaking 15-01-008
(Filed January 15, 2015)
ADMINISTRATIVE LAW JUDGE’S RULING ENTERING SUMMARY OF
BEST PRACTICES WORKING GROUP ACTIVITIES AND STAFF
RECOMMENDATIONS INTO THE RECORD AND SEEKING COMMENTS
Background
Rulemaking (R.) 15-01-008 was initiated by the California Public Utilities
Commission (Commission) to carry out the intent of Senate Bill (SB) 1371
(Statutes 2014, Chapter 525).1 SB 1371 requires the adoption of rules and
procedures to minimize natural gas leakage from Commission-regulated natural
gas pipelines consistent with Public Utilities Code Section 961 (d), § 192.703 (c) of
Subpart M of Title 49 of the Code of Federal Regulations, the Commission’s
General Order 112-E and their successors, and the state’s goal of reducing
greenhouse gas (GHG) emissions SB 1371, which became effective on
January 1, 2015, added Article 3 to the Public Utilities Code.2 Article 3, which is
entitled Methane Leakage Abatement, consists of §§ 975, 977, and 978. SB 1371
1 See R.15-01-008 “Order Instituting Rulemaking to Adopt Rules and Procedures Governing
Commission-Regulated Natural Gas Pipelines and Facilities to Reduce Natural Gas Leakage
consistent with Senate Bill 1371,” issued January 22, 2015.
2 Unless otherwise stated, all code section references are to the Public Utilities Code.
FILED
3-24-16
09:17 AM
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also directs the Commission, in consultation with the California Air Resources
Board (ARB), to achieve the goals of the Rulemaking.
Included in Article 3 is § 975 (e)(4) which states in part, that the
Commission shall:
(4) Establish and require the use of Best Practices for leak surveys,
patrols, leak survey technology, leak prevention, and leak reduction.
The commission shall consider in the development of Best Practices
the quality of materials and equipment.
Two related questions in the July 24, 2015 Scoping Memo in this
rulemaking are:
5. Should the Commission require specific methods and
technologies to detect and measure leaks? What Best Practices
should be required?
6. How should preventive maintenance and operations and other
efforts be employed to prevent leaks and other emissions,
including third-party dig-ins?3
The Scoping Memo also encouraged the use of a Working Group and
workshops to accomplish scoping memo objectives.4 Accordingly, the California
Public Utilities Commission (Commission) and the Air Resources Board (ARB)
staff (Staff) coordinated a series of six meetings with interested parties which led
to the creation of a consolidated spreadsheet listing over 100 Best Practices for
policies, practices, and technologies that specifically relate to the system
components and various operation areas. As Staff points out, among other
things, the spreadsheet briefly describes the proposed Best Practices, which
Parties proposed them, lists pros and cons, and includes where information is
readily available, estimated emissions that may be avoided through the use of
the Best Practices, and potential costs of measures. The Best Practices are further
3 Scoping Memo at 7-8.
4 Scoping Memo at 13.
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organized by functional categories: Operating Practices, Monitoring, Process and
Program Development & Training, Existing/Standard Practices, Research
& Development, Integrity Management Crossover (may apply to several
categories), Maintenance Practices, Design, and Regulatory Issue.
The spreadsheet is provided as Attachment A to this ruling and is
available on the Commission’s Safety and Enforcement Division Risk
Assessment Section web site.5 In the attached Best Practices summary
(Attachment 1), Staff also made recommendations pertaining to mandatory
requirements, Commission/ARB approval of compliance plans and audits, and
voluntary use of Best Practices.
Four Principles for Methane Leak Abatement Best Practices
To guide development of methane leak abatement Best Practices, Staff
proposed that the Best Practices Working Group adopt four principles for
Methane Leak Abatement Best Practices. According to Staff, the four following
principles incorporate parties’ informal comments to the extent that Staff agrees
with them:
1. Best Practices go beyond technologies and tools to embody
a new way of doing things. Policies, practices, and
education are as important as new technologies, and may
provide additional methane reduction opportunities at
lower cost (For example, the “find it, fix it” policy for
fixing leaks when found, in some cases, may be more cost
effective than monitoring and returning later to fix the
leak).
2. Industry standards for Safety and supplemental measures
are needed to meet the challenge of eliminating methane
emissions to the extent necessary to meet state goals.
5 Refer to Risk Assessment website at: http://www.cpuc.ca.gov/riskassessment.
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3. If we can use the most advanced, technologically feasible,
cost-effective measures to further reduce methane
emissions beyond established targets, we should.
4. Improved methane detection by itself isn’t enough; it
should be coupled with better quantification and accurate
categorization, and matched with a plan/timetable for
mitigation in manners that are cost-effective and
effective in minimizing the release of methane.
Comments on the Staff Summary and Recommendations
Consistent with Senate Bill 1371 and scoping memo objectives, comments
on the Joint Staff Report should respond to the following questions:
1. What overall comments do you have about the Staff
Summary and Recommendations?
2. Do you agree with the Four Principles for Methane Leak
Best Practices? Why or Why not?
3. Do the proposed mandatory and voluntary management
Best Practices, including categorization, rationale and
associated deadlines for implementation, adequately
address Public Utilities Code Article 3 (e)(4) and scoping
memo questions #5 and #6?
4. What process should be used to ensure best management
practices are up-to-date and continue to improve as new
technologies, tools, and information become available over
time, etc.?
IT IS RULED that:
1. The California Public Utilities Commission (Commission) and California
Air Resources Board “Natural Gas Leakage Abatement Summary of Best
Practices Working Group Activities and Staff Recommendations dated March
2016” and accompanying Excel spreadsheet (work product from the Best
Practices Working Group), found on the Commission’s website at
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http://www.cpuc.ca.gov/riskassessment/ are accepted into the record of this
proceeding as Attachment 1 and Attachment A, respectively.
2. Initial comments of not more than 15 pages in response to this ruling may
be filed and served no later than Friday, April 22, 2016.
3. Reply comments of not more than 5 pages in response to comments may
be filed and served no later than Friday, May 6, 2016.
Dated March 24, 2016, at San Francisco, California.
/s/ COLETTE E. KERSTEN
Colette E. Kersten
Administrative Law Judge
ȱ
California Public Utilities Commission and
California Air Resources Board
Natural Gas Leakage Abatement
Summary of Best Practices Working Group
Activities
And Staff Recommendations
In partial fulfillment of
Senate Bill 1371 (Leno, 2014) &
Order Instituting Rulemaking (OIR) 15-01-008
Elizabeth Scheehle, CARB
Winardi Setiawan, CARB
Charles Magee, CPUC
March, 2016
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ATTACHMENT 1
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TableofContents
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INTRODUCTIONȱ............................................................................................................ȱ2
IDENTIFICATIONȱOFȱBESTȱPRACTICESȱ...................................................................ȱ3
RECOMMENDATIONS..................................................................................................ȱ9
ATTACHMENTSȱ...........................................................................................................ȱ22
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DISCLAIMERȱ
Thisȱ reportȱ wasȱ preparedȱ byȱ Californiaȱ Publicȱ Utilitiesȱ Commissionȱ (CPUC)ȱ andȱ
Californiaȱ Airȱ Resourcesȱ Boardȱ staff.ȱȱItȱ doesȱ notȱ necessarilyȱ representȱ theȱ viewsȱ ofȱ theȱ
CPUC,ȱ itsȱ Commissioners,ȱ theȱ CARB,ȱ orȱ theȱ Stateȱ ofȱ California.ȱȱTheȱ CPUC,ȱ CARB,ȱ theȱ
Stateȱ ofȱ California,ȱ itsȱ employees,ȱ contractors,ȱ andȱ subcontractorsȱ makeȱ noȱ warrant,ȱ
expressedȱ orȱ implied,ȱ andȱ assumeȱ noȱ legalȱ liabilityȱ forȱ theȱ informationȱ inȱ thisȱ report.ȱȱ
Thisȱreportȱhasȱnotȱbeenȱapprovedȱ orȱdisapprovedȱbyȱ theȱCPUCȱorȱ theȱ CARB,ȱnorȱhaveȱ
theȱagenciesȱpassedȱuponȱtheȱaccuracyȱorȱadequacyȱofȱtheȱinformationȱinȱthisȱreport.ȱ
ȱ
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INTRODUCTION
Methaneȱisȱaȱgreenhouseȱgasȱ(GHG)ȱ72ȱtimesȱmoreȱpotentȱthanȱcarbonȱdioxideȱ
onȱaȱ20ȱyearȱtimeframe.ȱȱResearchersȱhaveȱidentifiedȱtheȱoilȱandȱgasȱindustryȱasȱaȱ
significantȱsourceȱofȱmethaneȱemissions.ȱȱInȱCalifornia,ȱSenateȱBillȱ(SB)ȱ1371ȱ(Leno,ȱ2014)ȱ
wasȱsignedȱbyȱGovernorȱBrownȱonȱSeptemberȱ21,ȱ2014,ȱtoȱreduceȱmethaneȱemissionsȱ
fromȱleaksȱinȱtheȱgasȱtransmission,ȱdistributionȱandȱstorageȱfacilitiesȱinȱCalifornia.ȱȱSBȱ
1371ȱaddsȱArticleȱ3ȱ(commencingȱwithȱSectionȱ975)ȱtoȱChapterȱ4.5ȱofȱPartȱ1ȱofȱDivisionȱ1ȱ
ofȱtheȱPublicȱUtilitiesȱCode.ȱȱIncludedȱinȱArticleȱ3ȱisȱSectionȱ975.ȱ(e)ȱ(4)ȱwhichȱstates,ȱinȱ
part,ȱthatȱtheȱCommissionȱshall:ȱȱ
Ȉ(4)ȱEstablishȱandȱrequireȱtheȱuseȱofȱbestȱpracticesȱforȱleakȱsurveys,ȱpatrols,ȱleakȱ
surveyȱtechnology,ȱleakȱprevention,ȱandȱleakȱreduction.ȱTheȱcommissionȱshallȱ
considerȱinȱtheȱdevelopmentȱofȱbestȱpracticesȱtheȱqualityȱofȱmaterialsȱandȱ
equipment.Ȉȱ
ȱ
Inȱaddition,ȱSBȱ1371ȱstates,ȱ“Theȱbillȱwouldȱrequireȱtheȱcommissionȱtoȱcommenceȱ
aȱproceedingȱbyȱJanuaryȱ15,ȱ2015,ȱtoȱadoptȱthoseȱrulesȱandȱprocedures,ȱinȱconsultationȱ
withȱtheȱStateȱAirȱResourcesȱBoard1.”ȱȱ
InȱJanuaryȱ2015,ȱtheȱCaliforniaȱPublicȱUtilitiesȱCommissionȱ(CPUCȱorȱ
Commission)ȱlaunchedȱRulemakingȱ(R.)ȱ15Ȭ01Ȭ008ȱinȱresponseȱtoȱSBȱ1371ȱtoȱinvestigateȱ
newȱtechnologiesȱinȱgasȱleakȱdetectionȱinȱtheȱtransmission,ȱdistributionȱandȱstorageȱ
process,ȱspecificallyȱoptimizingȱforȱmethaneȱreductions.ȱ2ȱȱTheȱJulyȱ24,ȱ2015,ȱScopingȱ
MemoȱandȱAssignedȱCommissionerȱRulingȱ(ScopingȱMemo)ȱforȱthisȱrulemakingȱstates,ȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
1ȱThis is a reference to the California State Air Resources Board (CARB).
2 “Order Instituting Rulemaking to Adopt Rules and Procedures Governing
Commission-Regulated Natural Gas Pipelines and Facilities to Reduce Natural Gas
Leakage Consistent with Senate Bill 1371,” issued January 22, 2015.
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ȈCARBȱwillȱworkȱwithȱtheȱCommissionȱtoȱdetermineȱtheȱbestȱmanagementȱpracticesȱ
andȱotherȱmitigationȱtechnologiesȱforȱachievingȱGHGȱreductions.ȱȱCARBȱwillȱ
collaborateȱwithȱtheȱCommissionȱandȱprovideȱGHGȱexpertiseȱthroughoutȱtheȱ
proceeding.ȱTheȱtwoȱagenciesȱwillȱensure,ȱonȱongoingȱbases,ȱthatȱboth the public safety
and the State’s climate change goals will be achieved."3ȱȱ
ThisȱreportȱdescribesȱtheȱprocessȱandȱresultsȱofȱCPUC/CARBȱexplorationȱofȱbestȱ
practicesȱ(BPs)ȱforȱtheȱreductionȱofȱmethaneȱleaksȱandȱemissionsȱfromȱutilityȱgasȱ
systems.ȱȱUnderȱtheȱdirectionȱofȱtheȱAssignedȱAdministrativeȱLawȱJudgeȱandȱinȱ
coordinationȱwithȱtheȱAssignedȱCommissioner’sȱOffice,ȱthisȱprocessȱincludedȱseveralȱ
staffȬconductedȱpublicȱworkshopsȱandȱtheȱconveningȱofȱaȱtechnicalȱworkingȱgroupȱ
openȱtoȱpartiesȱtoȱtheȱrulemaking.ȱȱȱ
Disclaimer:ȱDespiteȱtheȱeffortȱtoȱbeȱinclusiveȱandȱcollaborativeȱduringȱtheȱ
workingȱgroupȱprocess,ȱthisȱdocumentȱandȱitsȱrecommendationsȱareȱnotȱtoȱbeȱ
consideredȱaȱconsensusȱreport.ȱȱInsteadȱitȱrepresentsȱCPUC/CARBȱstaffȱproposalsȱforȱ
adoption,ȱandȱwillȱbeȱsubjectȱtoȱcommentsȱbyȱPartiesȱtoȱtheȱrulemakingȱbeforeȱbeingȱ
forwardedȱtoȱtheȱCPUCȱforȱconsideration.ȱ
ȱ
IDENTIFICATIONOFBESTPRACTICES
Inȱ2014ȱandȱ2015,ȱSafetyȱandȱEnforcementȱDivisionȱ(SED)ȱstaffȱresearchedȱBPsȱforȱ
theȱidentificationȱandȱmitigationȱofȱleaksȱfromȱtheȱutilityȱgasȱsystem.ȱȱTheȱresearchȱ
includedȱinternetȱsearchesȱandȱpersonalȱcontactsȱwithȱvendors,ȱutilities,ȱresearchȱ
organizationsȱandȱregulators,ȱinȱbothȱtheȱUnitedȱStatesȱandȱoverseas.ȱȱOnȱMarchȱ18,ȱ
2015,ȱALJȱKerstenȱissuedȱaȱrulingȱenteringȱtheȱSEDȱstaffȱreport,ȱtitledȱ“Surveyȱofȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
3ȱScoping Memo, p. 16.ȱ
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NaturalȱGasȱLeakageȱAbatementȱBestȱPractices”,ȱdatedȱMarchȱ17,ȱ2015,ȱintoȱtheȱrecord.ȱȱ
Theȱpurposeȱofȱthisȱpaperȱwasȱtoȱidentifyȱtechnologiesȱandȱpracticesȱpresentlyȱinȱuse,ȱ
technologiesȱandȱpracticesȱwhichȱareȱnewȱand/orȱcurrentlyȱnotȱinȱuseȱinȱCalifornia,ȱandȱ
thoseȱwhichȱareȱinȱvariousȱstagesȱofȱresearchȱandȱdevelopmentȱ(R&D).4ȱȱ
OnȱJulyȱ24,ȱ2015,ȱtheȱScopingȱMemoȱforȱthisȱrulemakingȱwasȱissued.ȱȱTwoȱofȱtheȱ
questionsȱincludedȱinȱtheȱScopingȱMemoȱwere:ȱ
5.ȱȱȱShouldȱtheȱCommissionȱrequireȱspecificȱmethodsȱandȱtechnologiesȱtoȱdetectȱ
andȱmeasureȱleaks?ȱWhatȱBPsȱshouldȱbeȱrequired?ȱ
6.ȱȱȱHowȱshouldȱpreventiveȱmaintenanceȱandȱoperationsȱandȱotherȱeffortsȱbeȱ
employedȱtoȱpreventȱleaksȱandȱotherȱemissions,ȱincludingȱthirdȬpartyȱdigȬ
ins?5ȱȱ
TheȱScopingȱMemoȱalsoȱestablishedȱworkshops,ȱbyȱstating,ȱȈThisȱproceedingȱwillȱ
holdȱworkshopsȱtoȱdiscussȱtheȱleakageȱissuesȱandȱtheȱtypesȱofȱactivitiesȱandȱmetricsȱthatȱ
areȱcurrentlyȱusedȱorȱshouldȱbeȱdevelopedȱtoȱdetect,ȱmonitor,ȱandȱrepairȱsuchȱleaks.ȱTheȱ
workshopsȱcouldȱalsoȱdiscussȱpotentialȱratemakingȱtreatmentsȱtoȱfacilitateȱminimizingȱ
theseȱleaks.ȱTheseȱworkshopsȱwillȱbeȱledȱbyȱtheȱCommission’sȱSafetyȱandȱEnforcementȱ
Divisionȱ(SED),ȱinȱcooperationȱwithȱCARB.Ȉȱȱȱ
TheȱScopingȱMemoȱfurtherȱdescribedȱtheȱscopeȱofȱtheȱBPsȱworkshop:ȱ
Ȉ2.ȱȱWorkingȱGroupȱWorkshopȱonȱBestȱPracticesȱ
(Phaseȱ1,ȱItemsȱ5ȱ&ȱ6)ȱ–ȱBasedȱonȱ“target”ȱemissionȱsources,ȱbestȱpracticesȱtoȱ
identify,ȱmeasure,ȱavoidȱandȱrepairȱleaksȱdiscuss:ȱ
x BPsȱtoȱidentifyȱleaks;ȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
4ȱThis report can be found on the CPUC Risk Assessment webpage at:
http://www.cpuc.ca.gov/riskassessment/
5ȱScoping Memo at 13.ȱ
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x Bestȱprotocols,ȱmethodsȱandȱproceduresȱtoȱquantifyȱmethaneȱemissionsȱ
andȱleaks;ȱ
x Bestȱpreventiveȱmaintenanceȱandȱoperationsȱpracticesȱtoȱavoidȱandȱ
preventȱleaks,ȱemissionsȱfromȱblowdowns,ȱoperationalȱemissionsȱandȱ
otherȱemissions,ȱincludingȱthirdȬpartyȱdigȬins;ȱandȱ
x BPsȱtoȱrepairȱleaksȱ(e.g.ȱcustomerȱmetersȱareȱaȱmajorȱsourceȱofȱleaks.ȱ
Whatȱisȱaȱcostȱeffectiveȱwayȱtoȱrepairȱthose?)Ȉȱ
InȱcomplianceȱwithȱtheȱdirectionȱofȱtheȱScopingȱMemo,ȱaȱworkshopȱwasȱheldȱonȱ
Octoberȱ27,ȱ2015,ȱwhereȱseveralȱpartiesȱmadeȱtheȱfollowingȱpresentations:6ȱ
x CPUCȱȬȱCostȱEffectivenessȱ
x ProfessorȱȱJosephȱC.ȱvonȱFischerȱofȱColoradoȱStateȱUniversityȱȬȱLeakȱ
QuantificationȱUsingȱMobileȱSensorsȱ
x EnvironmentalȱDefenseȱFundȱȬȱSEDȱWorkshopȱonȱBestȱPracticesȱ
x SempraȱȬȱNaturalȱGasȱLeakageȱWorkshop:ȱWorkingȱGroupȱWorkshopȱ
onȱBestȱPracticesȱ
x PG&EȱȬȱLeakȱAbatementȱBestȱPracticesȱWorkshop:ȱImplementingȱBestȱ
PracticesȱandȱOngoingȱR&DȱProjectsȱ
x SouthwestȱGasȱȬȱBestȱPracticesȱWorkshopȱR.15Ȭ01Ȭ008:ȱMethaneȱ
Leakageȱ
Subsequentȱtoȱtheȱworkshop,ȱmeetingsȱwereȱheld,ȱbyȱtelephoneȱandȱinȱperson,ȱtoȱ
furtherȱzeroȱinȱonȱtheȱspecificȱBPsȱpreferredȱbyȱtheȱpartiesȱtoȱidentifyȱandȱmitigateȱleaksȱ
andȱemissions.ȱȱAllȱpartiesȱwereȱnoticedȱandȱinvitedȱtoȱparticipateȱinȱtheȱworkingȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
6ȱAll parties to the proceeding were invited to participate in the workshop and make
presentations. All presentations can be found on the CPUC Risk Assessment webpage
at: http://www.cpuc.ca.gov/riskassessment/
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group.ȱȱAllȱteleconferencesȱandȱmeetingsȱwereȱwellȱattendedȱbyȱtheȱpartiesȱandȱtheirȱ
representatives.7ȱȱȱȱInȱgeneral,ȱtheȱpartiesȱfeltȱthatȱtheȱmeetingsȱwereȱproductive.ȱ
BPsȱmeetingsȱandȱtopicsȱofȱdiscussionȱwereȱasȱfollows:ȱ
x Decemberȱ8,ȱ2015,ȱteleconference:ȱ
x TransmissionȱBlowdownsȱandȱM&RȱStationȱBlowdownsȱ
x Decemberȱ22,ȱ2015,ȱteleconference:ȱ
x CompressorȱStationsȱ–ȱLeaksȱfromȱValves,ȱConnections,ȱMeters,ȱ
Vents,ȱPacking,ȱBlowdowns,ȱetc.ȱ
x Januaryȱ5,ȱ2016,ȱteleconference:ȱ
x Storageȱ–ȱControlȱVents,ȱLeaks,ȱBlowdowns,ȱStorageȱ
Compressors,ȱCasings,ȱotherȱsourcesȱofȱLeaksȱandȱEmissions.ȱ
x Januaryȱ19,ȱ2016,ȱmeetingȱatȱtheȱofficesȱofȱtheȱEnvironmentalȱDefenseȱ
Fundȱ(EDF)ȱatȱ123ȱMissionȱSt.,ȱSanȱFrancisco:ȱ
x CustomerȱMeterȱandȱPHMSAȱ“minor”ȱreleasesȱ(threadedȱ
connectionȱleaks)ȱANDȱLeakȱSurveys,ȱPatrols,ȱLeakȱSurveyȱ
Technology,ȱLeakȱPrevention,ȱLeakȱReduction,ȱLeakȱRepairȱandȱ
RequiredȱRepairȱTimesȱforȱLeaks.ȱ
x “KnowȱYourȱRisers”ȱpresentationȱbyȱtheȱUtilityȱWorkersȱUnionȱ
ofȱAmerica,ȱaddressingȱtheȱdangersȱofȱcorrodedȱanodelessȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
7 The parties who participated were Sempra Utilities, Pacific Gas and Electric (PG&E),
Southwest Gas, Central Valley Storage, Lodi Gas Storage, Wild Goose Gas Storage, the
Environmental Defense Fund (EDF), the Utility Workers Union of America (UWUA),
the Coalition of California Utility Employees (CCUE), the Utility Reform Network
(TURN), the California Air Resources Board (CARB), the CPUC Organization of
Ratepayers Advocates (ORA) and the CPUC Risk Assessment Group.ȱ
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risers,ȱaȱsteelȱcasingȱwithȱaȱplasticȱpipeȱinsideȱthatȱcarriesȱtheȱ
gasȱtoȱtheȱstopȱvalveȱandȱmeterȱassembly.ȱ
x Januaryȱ20,ȱ2016,ȱcontinuationȱmeetingȱatȱtheȱEDFȱoffices:ȱ
x SelectionȱofȱBPsȱforȱtheȱWorkingȱGroupȱProposal.ȱ
x CostȱEffectivenessȱ–ȱDiscussionȱbyȱSouthernȱCaliforniaȱGasȱ
regardingȱtheȱcostȱeffectivenessȱmethodologyȱpresentedȱinȱtheȱ
ICFȱReportȱtitled,ȱ“EconomicȱAnalysisȱofȱMethaneȱEmissionȱ
ReductionȱOpportunitiesȱinȱtheȱU.S.ȱOnshoreȱOilȱandȱNaturalȱ
GasȱIndustries”,ȱdatedȱMarchȱ2014.ȱ
x “BestȱPractices/EffectiveȱResultsȱȬȱSafeȱHarborȱProposal”ȱ
presentationȱbyȱtheȱIndependentȱGasȱStorageȱProvidersȱ(ISPs)ȱ
ȱ
Theseȱworkingȱgroupȱmeetingsȱledȱtoȱtheȱcreationȱofȱaȱconsolidatedȱspreadsheet,ȱ
listingȱoverȱ100ȱpotentialȱBPsȱforȱpolicies,ȱpracticesȱandȱtechnologiesȱthatȱspecificallyȱ
relateȱtoȱtheȱsystemȱcomponentsȱandȱoperationalȱareasȱmentionedȱabove.8ȱ
TheȱspreadsheetȱbrieflyȱdescribesȱtheȱproposedȱBPs,ȱwhichȱpartiesȱproposedȱ
them,ȱlistsȱprosȱandȱcons,ȱandȱ–ȱwhereȱinformationȱwasȱreadilyȱavailableȱ–ȱ
estimatedȱemissionsȱthatȱmayȱbeȱavoidedȱthroughȱtheȱuseȱofȱtheȱbestȱpracticeȱandȱtheȱ
potentialȱcostsȱofȱtheȱmeasures.ȱȱAdditionalȱcommentsȱaboutȱtheȱproposedȱitemsȱthatȱ
cameȱupȱduringȱtheȱworkingȱgroupȱmeetingsȱareȱincluded,ȱasȱwellȱasȱaȱlinkȱtoȱtheȱU.S.ȱ
EnvironmentalȱProtectionȱAgencyȱNaturalȱGasȱSTARȱsiteȱinȱcasesȱwhereȱtheȱitemȱisȱ
alreadyȱidentifiedȱasȱaȱBestȱPracticeȱbyȱtheȱU.S.ȱEPA.ȱȱȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
8ȱSee Notes on Appendix A at the end of this document.ȱȱ
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BPsȱareȱfurtherȱidentifiedȱbyȱfunctionalȱcategories:ȱOperational,ȱMonitoring,ȱ
Process/ProgramȱDevelopmentȱandȱTraining,ȱExisting/StandardȱPractices,ȱResearchȱ&ȱ
Development,ȱCrossoverȱ(mayȱapplyȱtoȱseveralȱcategories)ȱandȱMaintenance.ȱȱȱȱ
Althoughȱthereȱmayȱbeȱotherȱwaysȱtoȱcategorizeȱtheȱlist,ȱstaffȱbelievesȱtheȱ
functionalȱcategorizationȱisȱmostȱusefulȱatȱthisȱpointȱinȱtheȱprocess.ȱȱ
Theȱspreadsheet,ȱwhichȱisȱproposedȱasȱanȱattachmentȱtoȱthisȱdocument,ȱisȱ
availableȱonȱtheȱSEDȱRiskȱAssessmentȱwebȱsite.9ȱ
TheȱSEDȱRiskȱGroupȱalsoȱproposedȱthatȱtheȱBestȱPracticesȱWorkingȱGroupȱadoptȱ
theȱfollowingȱFourȱPrinciplesȱforȱMethaneȱLeakȱAbatementȱBestȱPractices.ȱȱTheȱFourȱ
Principlesȱshownȱbelowȱincorporateȱparties’ȱinformalȱcommentsȱtoȱtheȱextentȱthatȱStaffȱ
agreesȱwithȱthem:ȱ
ȱ
FourȱPrinciplesȱforȱMethaneȱLeakȱAbatementȱBestȱPracticesȱ
1.BPsȱgoȱbeyondȱtechnologiesȱandȱtoolsȱtoȱembodyȱaȱnewȱwayȱofȱdoingȱ
things.ȱȱPolicies,ȱpracticesȱandȱeducationȱareȱasȱimportantȱasȱnewȱ
technologies,ȱandȱmayȱprovideȱadditionalȱmethaneȱreductionȱopportunitiesȱatȱ
lowerȱcostȱȱ(e.g.,ȱTheȱ“Findȱit,ȱfixȱit”ȱpolicyȱforȱfixingȱleaksȱwhenȱfound,ȱinȱ
someȱcases,ȱmayȱbeȱmoreȱcostȱeffectiveȱthanȱmonitoringȱorȱreturningȱlaterȱtoȱ
fixȱtheȱleak).
2.IndustryȱstandardsȱforȱSafetyȱandȱsupplementalȱmeasuresȱareȱneededȱtoȱmeetȱ
theȱchallengeȱofȱeliminatingȱmethaneȱemissionsȱtoȱtheȱextentȱnecessaryȱtoȱ
meetȱStateȱgoals.
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
9ȱRefer to the Risk Assessment website at: http://www.cpuc.ca.gov/riskassessment/
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3.Ifȱweȱcanȱuseȱtheȱmostȱadvanced,ȱtechnologicallyȱfeasible,ȱcostȬeffectiveȱ
measuresȱtoȱfurtherȱreduceȱmethaneȱemissionsȱbeyondȱestablishedȱtargets,ȱweȱ
should.
4.Improvedȱmethaneȱdetectionȱbyȱitselfȱisn’tȱenough;ȱitȱshouldȱbeȱcoupledȱwithȱ
betterȱquantificationȱandȱaccurateȱcategorization,ȱandȱmatchedȱwithȱaȱ
plan/timetableȱforȱmitigationȱinȱmannersȱthatȱareȱeffectiveȱinȱminimizingȱtheȱ
releaseȱofȱmethane.
ȱ
ItȱshouldȱbeȱnotedȱthatȱtheseȱPrinciplesȱrepresentȱaȱdeeperȱiterationȱofȱoneȱofȱsixȱ
statutoryȱprinciplesȱthatȱwereȱlistedȱinȱSBȱ1371,ȱinȱthatȱtheyȱwillȱguideȱtheȱeffortȱtoȱ“(4)ȱ
Establishȱandȱrequireȱtheȱuseȱofȱbestȱpracticesȱforȱleakȱsurveys,ȱpatrols,ȱleakȱsurveyȱ
technology,ȱleakȱprevention,ȱandȱleakȱreduction.”10ȱȱ
RECOMMENDATIONSȱ
Atȱthisȱtime,ȱafterȱtheȱexhaustiveȱreviewȱofȱBPsȱdescribedȱabove,ȱtheȱCPUCȱandȱ
CARBȱareȱpreparedȱtoȱmakeȱtheȱfollowingȱBPȱrecommendations.ȱ
AsȱstatedȱinȱSBȱ1371,ȱ“Theȱrulesȱandȱprocedures,ȱincludingȱbestȱpracticesȱandȱ
repairȱstandards,ȱshallȱbeȱincorporatedȱintoȱtheȱsafetyȱplansȱrequiredȱbyȱSectionȱ961ȱandȱ
theȱapplicableȱgeneralȱordersȱadoptedȱbyȱtheȱcommission.”11ȱȱAtȱthisȱtime,ȱtheȱonlyȱ
applicableȱgeneralȱorderȱadoptedȱbyȱtheȱcommissionȱisȱG.O.ȱ112,ȱRevisionȱFȱandȱfutureȱ
revisions.ȱȱWhetherȱandȱhowȱtheseȱproposals,ȱshouldȱtheyȱbeȱadoptedȱbyȱtheȱ
Commission,ȱwouldȱbeȱincorporatedȱintoȱaȱgeneralȱorder,ȱhasȱnotȱyetȱbeenȱdetermined.ȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
10ȱPU Code Section 975(e)(4).ȱ
11ȱSB-1371 Natural Gas: Leakage Abatement, Section. 2., Article 3., 975(f)ȱ
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ȱ
MandatoryȱRequirementsȱ
Thereȱareȱmandatoryȱminimumȱrequirementsȱproposedȱhereȱthatȱareȱintendedȱtoȱ
ensureȱthatȱtheȱutilitiesȱandȱgasȱstorageȱoperatorsȱareȱusingȱBPsȱtoȱreduceȱMethaneȱ
leaksȱandȱemissions.ȱȱSomeȱofȱtheȱminimumȱrequirementsȱareȱnotȱBPsȱasȱidentifiedȱinȱ
theȱspreadsheet,ȱbutȱareȱtheȱpolicies,ȱprocedures,ȱprograms,ȱinstructionsȱandȱtrainingȱ
necessaryȱtoȱimplementȱtheȱBPs.ȱȱȱȱȱ
Inȱaddition,ȱitȱshouldȱbeȱmandatoryȱforȱallȱutilitiesȱtoȱcreateȱandȱfileȱwithȱtheȱ
CPUCȱandȱCARB,ȱaȱcomplianceȱplanȱtoȱcompelȱtheȱutilitiesȱtoȱselfȬauditȱandȱcertifyȱ
whatȱspecificȱBPsȱtheyȱareȱusingȱtoȱmitigateȱmethaneȱleaksȱandȱemissions.ȱȱȱ
ThereȱareȱalsoȱmandatoryȱminimumȱBPsȱproposedȱthatȱareȱaimedȱatȱmitigatingȱ
twoȱofȱtheȱlargestȱcategoriesȱofȱmethaneȱemissionsȱandȱleaks.ȱȱThoseȱcategoriesȱareȱ
blowdownsȱandȱthreadedȱconnections12.ȱȱFurther,ȱthereȱareȱseveralȱminimumȱrequiredȱ
BPsȱforȱtheȱdetectionȱofȱgradedȱandȱungradedȱleaks,ȱandȱtoȱmitigateȱtheȱuncontrolledȱ
releaseȱofȱmethaneȱtoȱtheȱenvironment.ȱȱ
Allȱofȱtheȱmandatoryȱrequirementsȱhaveȱbeenȱproposedȱbecauseȱtheyȱareȱeitherȱ
consideredȱaȱcrucialȱelementȱtoȱtheȱsuccessȱofȱtheȱprogramȱ(e.g.,ȱcompliance,ȱprograms,ȱ
training,ȱetc.)ȱorȱbecauseȱtheyȱwillȱdetectȱorȱmitigateȱtheȱlargestȱvolumeȱofȱmethaneȱ
emittedȱandȱleakedȱ(blowdowns,ȱthreadedȱfittings,ȱgradedȱandȱungradedȱleaks,ȱ
uncontrolledȱreleasesȱofȱmethane).ȱȱTheyȱalsoȱappearȱtoȱbeȱcostȬeffective,ȱbasedȱonȱ
currentȱutilityȱexperienceȱorȱprojectedȱcommercialȱcostȱ(ifȱstillȱinȱR&D).ȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
12ȱAs identified in the Methane Leak Abatement Proceeding Workshop on Cost-
Effectiveness and Best Management Practices (R.15-01-008), October 27, 2015. Refer to
the Risk Assessment website at: http://www.cpuc.ca.gov/riskassessment/
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ȱ
CPUCȱ/ȱCARBȱApprovalȱandȱAuditsȱ
TheȱCPUC,ȱinȱconsultationȱwithȱCARB,ȱwillȱapproveȱtheȱcomplianceȱplansȱandȱ
mandatoryȱproceduresȱandȱpracticesȱdescribedȱinȱthisȱdocumentȱusingȱaȱprocessȱtoȱbeȱ
determinedȱlaterȱinȱthisȱproceeding.ȱȱAlso,ȱnoteȱthatȱallȱcomponentsȱofȱthisȱcomplianceȱ
planȱwillȱbeȱsubjectȱtoȱauditȱbyȱtheȱCPUCȱinȱconsultationȱwithȱCARBȱand/orȱthirdȬpartyȱ
certifiers,ȱusingȱanȱauditȱprocessȱtoȱbeȱdetermined,ȱincludingȱunannouncedȱrandomȱ
fieldȱinspections.ȱ
ȱ
VoluntaryȱUseȱofȱBestȱPracticesȱ
AllȱotherȱBPsȱfoundȱinȱAttachmentȱAȱofȱthisȱdocument,ȱorȱtheȱMarchȱ18,ȱ2015,ȱ
reportȱfoundȱonȱtheȱRiskȱAssessmentȱwebsite,13ȱareȱconsideredȱvoluntaryȱandȱmayȱbeȱ
usedȱasȱappropriateȱbyȱtheȱRespondentsȱtoȱmeetȱtheȱemissionȱtargetsȱeventuallyȱ
adoptedȱbyȱtheȱCPUC.ȱȱAsȱtechnologiesȱchangeȱandȱimprove,ȱadditionalȱbestȱpracticesȱ
mayȱbeȱaddedȱand/orȱmadeȱmandatory.ȱȱȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
13ȱRefer to the Risk Assessment website at: http://www.cpuc.ca.gov/riskassessment/
ȱ
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MandatoryȱRequirementsȱandȱBestȱPracticesȱ
ȱȱ
Mandatoryȱ Methodȱ1ȱ
Category
Logicȱ Deadlineȱ
PoliciesȱandȱProceduresȱ ȱȱ ȱ
Writtenȱcomplianceȱplanȱidentifyingȱ
theȱpolicies,ȱprograms,ȱprocedures,ȱ
instructions,ȱdocuments,ȱetc.ȱusedȱtoȱ
complyȱwithȱtheȱFinalȱDecisionȱinȱthisȱ
Proceedingȱ(R.15Ȭ01Ȭ008).ȱȱȱExactȱ
wordingȱTBDȱbyȱtheȱcompanyȱandȱ
approvedȱbyȱtheȱCPUC,ȱinȱ
consultationȱwithȱCARB.ȱȱȱ
Regulatoryȱ
Issue,ȱProcessȱ
andȱProgramȱ
Developmentȱ
&ȱTrainingȱ
Eachȱcompanyȱisȱofȱaȱdifferentȱsizeȱ
andȱhasȱaȱdifferentȱbusinessȱmodel.ȱȱ
Inȱmostȱcases,ȱtheyȱareȱgivenȱtheȱ
flexibilityȱtoȱchooseȱtheȱBPsȱthatȱareȱ
costȬeffectiveȱforȱthem.ȱHowever,ȱ
theyȱmustȱsubmitȱaȱcomplianceȱplanȱ
forȱapprovalȱbyȱtheȱCPUC/CARBȱtoȱ
ensureȱthatȱtheyȱareȱcomplyingȱwithȱ
theȱemissionȱtargetsȱandȱdecisionsȱofȱ
thisȱproceedingȱandȱSBȱ1371.ȱ
Januaryȱ31,ȱ2017ȱ
Writtenȱcompanyȱpolicyȱstatingȱthatȱ
methaneȱisȱaȱpotentȱGHGȱthatȱmustȱbeȱ
preventedȱfromȱescapingȱtoȱtheȱ
atmosphere.ȱȱȱExactȱwordingȱTBDȱbyȱ
theȱcompanyȱandȱapprovedȱbyȱtheȱ
CPUC,ȱinȱconsultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ
&ȱTrainingȱ
Writtenȱcompanyȱpoliciesȱareȱ
neededȱtoȱdirectȱcompanyȱactivitiesȱ
andȱholdȱemployeesȱaccountableȱforȱ
violationsȱofȱtheȱpolicy.ȱ
Decemberȱ15,ȱ2016ȱ
Writtenȱcompanyȱpolicyȱorȱprocedureȱ
statingȱthatȱnonȬemergencyȱventingȱofȱ
transmissionȱlinesȱandȱdistributionȱ
mainsȱtoȱatmosphereȱareȱonlyȱ
permittedȱafterȱpressureȱinsideȱtheȱ
linesȱhasȱbeenȱreducedȱtoȱtheȱlevelȱ
specifiedȱinȱProcedureȱXXX.ȱȱExactȱ
wordingȱTBDȱbyȱtheȱcompanyȱandȱ
approvedȱbyȱtheȱCPUC,ȱinȱ
consultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ
&ȱTrainingȱ
Purgingȱ
Writtenȱcompanyȱpoliciesȱareȱ
neededȱtoȱdirectȱcompanyȱactivitiesȱ
andȱholdȱemployeesȱaccountableȱforȱ
violationsȱofȱtheȱpolicy.ȱ
Decemberȱ15,ȱ2016ȱ
R.15-01-008 CEK/ek4
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Mandatoryȱ Methodȱ1ȱ
Categoryȱ
Logicȱ Deadlineȱ
PoliciesȱandȱProceduresȱȱ ȱ ȱ
Writtenȱcompanyȱpolicyȱorȱprocedureȱ
statingȱthatȱanyȱprojectȱthatȱrequiresȱ
evacuatingȱmethaneȱmustȱbuildȱtimeȱ
intoȱtheȱprojectȱscheduleȱtoȱreduceȱ
methaneȱbyȱusingȱoneȱofȱtheȱapprovedȱ
BPsȱfoundȱinȱProcedureȱXXX.ȱ
Schedulesȱofȱtransmissionȱlineȱworkȱ
shallȱalsoȱbeȱsubmittedȱtoȱfacilitateȱ
audits,ȱwithȱlineȱventingȱscheduleȱ
updatesȱTBD.ȱExactȱwordingȱTBDȱbyȱ
theȱcompanyȱandȱapprovedȱbyȱtheȱ
CPUC,ȱinȱconsultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ&ȱ
Trainingȱ
Writtenȱcompanyȱpoliciesȱareȱ
neededȱtoȱdirectȱcompanyȱactivitiesȱ
andȱholdȱemployeesȱaccountableȱ
forȱviolationsȱofȱtheȱpolicy.ȱ
Decemberȱ15,ȱ2016ȱ
Writtenȱcompanyȱproceduresȱ
implementingȱtheȱBPsȱapprovedȱforȱ
useȱtoȱevacuateȱmethaneȱandȱhowȱtoȱ
useȱthem.ȱȱExactȱwordingȱTBDȱbyȱtheȱ
companyȱandȱapprovedȱbyȱtheȱCPUC,ȱ
inȱconsultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ&ȱ
Trainingȱ
Writtenȱcompanyȱproceduresȱareȱ
neededȱtoȱdirectȱcompanyȱactivitiesȱ
andȱholdȱemployeesȱaccountableȱ
forȱviolationsȱofȱtheȱpolicy.ȱ
Decemberȱ15,ȱ2016ȱ
Writtenȱcompanyȱpolicyȱthatȱrequiresȱ
thatȱforȱanyȱprojectsȱrequiringȱ
evacuatingȱmethane,ȱWorkȱPlannersȱ
shallȱclearlyȱdelineate,ȱinȱproceduralȱ
documents,ȱsuchȱasȱworkȱordersȱusedȱ
inȱtheȱfield,ȱtheȱstepsȱrequiredȱtoȱsafelyȱ
andȱefficientlyȱreduceȱtheȱpressureȱinȱ
theȱlines,ȱpriorȱtoȱlinesȱbeingȱvented.ȱ
ExactȱwordingȱTBDȱbyȱtheȱcompanyȱ
andȱapprovedȱbyȱtheȱCPUC,ȱinȱ
consultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ&ȱ
Trainingȱ
Writtenȱcompanyȱproceduresȱareȱ
neededȱtoȱdirectȱcompanyȱactivitiesȱ
andȱholdȱemployeesȱaccountableȱ
forȱviolationsȱofȱtheȱpolicy.ȱ
Decemberȱ15,ȱ2016ȱ
Writtenȱcompanyȱpolicyȱrequiringȱ
bundlingȱofȱworkȱwheneverȱpossibleȱ
toȱpreventȱmultipleȱventingȱofȱtheȱ
sameȱpiping.ȱȱExactȱwordingȱTBDȱbyȱ
theȱcompanyȱandȱapprovedȱbyȱtheȱ
CPUC,ȱinȱconsultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ&ȱ
Trainingȱ
Requiresȱcoordinationȱandȱ
awarenessȱofȱconstruction,ȱ
operationsȱandȱmaintenanceȱ
activities.ȱȱMultipleȱblowȬdownsȱofȱ
linesȱcauseȱexcessȱmethaneȱ
emissions.ȱ
Decemberȱ15,ȱ2016ȱ
Writtenȱcompanyȱemergencyȱ
proceduresȱwhichȱdescribeȱtheȱactionsȱ
companyȱstaffȱshallȱtakeȱtoȱpreventȱ
and/orȱstopȱtheȱuncontrolledȱreleaseȱofȱ
methaneȱfromȱtheȱgasȱsystemȱorȱ
storageȱfacility.ȱ
ExactȱwordingȱTBDȱbyȱtheȱcompanyȱ
andȱapprovedȱbyȱtheȱCPUC,ȱinȱ
consultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ&ȱ
Training,ȱIMȱ
Crossoverȱ
Storageȱfacilitiesȱcontainȱlargeȱ
volumesȱofȱmethane.ȱȱAnȱ
uncontrolledȱreleaseȱwillȱnegateȱtheȱ
methaneȱreductionsȱofȱotherȱ
utilities,ȱincreaseȱgreenhouseȱgasesȱ
andȱendangerȱpublicȱhealthȱbyȱ
releasingȱlargeȱamountsȱofȱodorantȱ
andȱotherȱtoxicȱnaturalȱgasȱbyȬ
products.ȱ
Decemberȱ15,ȱ2016ȱ
R.15-01-008 CEK/ek4
ȱ
ȱ
ǦǤͳͷǦͲͳǦͲͲͺ ͳͶȱofȱ22
ȱ
ȱȱ
Mandatoryȱ Methodȱ1ȱ
Categoryȱ
Logicȱ Deadlineȱ
Recordsȱ ȱȱ ȱ
WrittenȱCompanyȱPolicyȱdirectingȱtheȱ
gasȱbusinessȱunitȱtoȱmaintainȱrecordsȱ
ofȱallȱemissionsȱandȱleaks,ȱincludingȱ
theȱcalculationsȱusedȱtoȱderiveȱtheȱ
volumeȱofȱmethaneȱreleased.ȱRecordsȱ
areȱtoȱbeȱmaintainedȱinȱaccordanceȱ
withȱG.O.ȱ112ȱFȱandȱsucceedingȱ
revisions,ȱandȱ49ȱCFRȱ192.ȱȱCurrently,ȱ
theȱrecordȱretentionȱtimeȱinȱG.O.ȱ112ȱFȱ
isȱatȱleastȱ75ȱyearsȱforȱtheȱtransmissionȱ
system.ȱȱ49ȱCFRȱ192.1011ȱrequiresȱaȱ
recordȱretentionȱtimeȱofȱatȱleastȱ10ȱ
yearsȱforȱtheȱdistributionȱsystem.ȱȱExactȱ
wordingȱTBDȱbyȱtheȱcompanyȱandȱ
approvedȱbyȱtheȱCPUC,ȱinȱ
consultationȱwithȱCARB.ȱ
Regulatoryȱ
Issueȱ
Itȱisȱimpossibleȱtoȱaccuratelyȱreportȱ
methaneȱreleasesȱwithoutȱthisȱ
information.ȱȱItȱwillȱalsoȱbeȱusedȱbyȱ
regulatorsȱduringȱauditsȱtoȱensureȱ
compliance.ȱ
Decemberȱ15,ȱ2016ȱ
Trainingȱ ȱȱ ȱ
Trainingȱtoȱensureȱthatȱpersonnelȱ
knowȱhowȱtoȱuseȱcompanyȱemergencyȱ
proceduresȱwhichȱdescribeȱtheȱactionsȱ
staffȱshallȱtakeȱtoȱpreventȱand/orȱstopȱ
theȱuncontrolledȱreleaseȱofȱmethaneȱ
fromȱtheȱgasȱsystemȱorȱstorageȱfacility.ȱȱ
Trainingȱprogramsȱtoȱbeȱdesignedȱbyȱ
theȱCompanyȱandȱapprovedȱbyȱtheȱ
CPUC,ȱinȱconsultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ&ȱ
Training,ȱIMȱ
Crossoverȱ
Storageȱfacilitiesȱcontainȱlargeȱ
volumesȱofȱmethane.ȱȱAnȱ
uncontrolledȱreleaseȱwillȱnegateȱtheȱ
methaneȱreductionsȱofȱotherȱ
utilities,ȱincreaseȱgreenhouseȱgasesȱ
andȱendangerȱpublicȱhealthȱbyȱ
releasingȱlargeȱamountsȱofȱodorantȱ
andȱotherȱtoxicȱnaturalȱgasȱbyȬ
products.ȱ
Decemberȱ15,ȱ2016ȱ
Ensureȱthatȱtrainingȱprogramsȱeducateȱ
workersȱasȱtoȱwhyȱitȱisȱnecessaryȱtoȱ
reduce,ȱeliminateȱand/orȱpreventȱ
methaneȱemissionsȱandȱleaks.ȱȱ
Trainingȱprogramsȱtoȱbeȱdesignedȱbyȱ
theȱCompanyȱandȱapprovedȱbyȱtheȱ
CPUC,ȱinȱconsultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ&ȱ
Trainingȱ
Trainingȱprogramsȱareȱnecessaryȱtoȱ
helpȱemployeesȱunderstandȱwhyȱitȱ
isȱimportantȱtoȱreduceȱmethaneȱ
emissionsȱandȱleaks.ȱȱIfȱtheyȱ
understandȱtheȱissues,ȱtheyȱareȱ
moreȱlikelyȱtoȱcomplyȱwithȱtheȱ
company’sȱpoliciesȱandȱ
procedures.ȱ
Decemberȱ15,ȱ2016ȱ
R.15-01-008 CEK/ek4
ȱ
ȱ
ǦǤͳͷǦͲͳǦͲͲͺ ͳͷȱofȱ22
ȱ
ȱȱ
Mandatoryȱ Methodȱ1ȱ
Category
Logicȱ Deadlineȱ
Trainingȱ ȱȱ ȱ
Trainingȱ/ȱMentoringȱ/Knowledgeȱ
TransferȱProgramsȱtoȱensureȱ
knowledgeȱcontinuityȱasȱworkersȱleaveȱ
andȱnewȱworkersȱareȱhired.ȱȱTraining,ȱ
mentoringȱandȱknowledgeȱtransferȱ
programsȱtoȱbeȱdesignedȱbyȱtheȱ
CompanyȱandȱapprovedȱbyȱtheȱCPUC,ȱ
inȱconsultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ
&ȱTrainingȱ
Alleviatesȱknowledgeȱgapsȱandȱ
improvesȱsafety.ȱȱNewȱworkersȱ
MUSTȱbeȱtrainedȱforȱsafetyȱreasons,ȱ
inȱadditionȱtoȱlimitingȱmethaneȱ
emissions.ȱȱKnowledgeȱtransferȱ
programsȱkeepȱknowledgeȱandȱ
importantȱinformationȱflowingȱ
throughȱgenerationsȱofȱemployees.ȱ
Januaryȱ31,ȱ2017ȱ
Createȱandȱimplementȱtrainingȱ
programsȱtoȱinstructȱworkersȱonȱhowȱ
toȱperformȱtheȱBPsȱchosen,ȱefficientlyȱ
andȱsafely.ȱȱTraining,ȱmentoringȱandȱ
knowledgeȱtransferȱprogramsȱtoȱbeȱ
designedȱbyȱtheȱCompanyȱandȱ
approvedȱbyȱtheȱCPUC,ȱinȱ
consultationȱwithȱCARB.ȱ
Processȱandȱ
Programȱ
Developmentȱ
&ȱTrainingȱ
Trainingȱprogramsȱareȱnecessaryȱforȱ
theȱsafetyȱofȱworkersȱandȱtheȱpublic.ȱȱȱ
Januaryȱ31,ȱ2017ȱ
Experienced,ȱTrainedȱ
Personnelȱ
ȱȱ ȱ
Experienced,ȱqualifiedȱpeopleȱwithȱ
fieldȱexperienceȱareȱneeded.ȱȱThisȱisȱaȱ
generalȱcommentȱforȱallȱBPs.ȱȱCreateȱ
newȱformalȱjobȱclassificationsȱforȱ
apprentices,ȱjourneyman,ȱspecialists,ȱ
etc.ȱwhereȱneeded.ȱȱImplementȱthisȱ
practiceȱinȱcooperationȱwithȱtheȱ
Unions.ȱȱȱTheȱCPUC,ȱinȱconsultationȱ
withȱCARBȱwillȱreviewȱtheȱnumberȱ
andȱexperienceȱofȱemployeesȱinȱtheȱ
field,ȱasȱwellȱasȱtrainingȱandȱmentoringȱ
programs,ȱduringȱaudits.ȱȱTheȱauditȱ
processȱwillȱbeȱdevelopedȱlaterȱinȱthisȱ
proceeding.ȱ
Processȱandȱ
Programȱ
Developmentȱ
&ȱTrainingȱ
AccordingȱtoȱtheȱUnions,ȱthereȱisȱaȱ
significantȱneedȱforȱexperienced,ȱ
qualifiedȱpeopleȱworkingȱinȱtheȱfield,ȱ
andȱalsoȱforȱparticipationȱinȱtheȱ
evaluationȱofȱexistingȱpracticesȱandȱ
developmentȱofȱbetterȱ(best)ȱ
practices.ȱȱExperiencedȱgasȱsystemȱ
workersȱhaveȱfirstȬhandȱknowledgeȱ
ofȱhowȱgasȱsystemȱequipmentȱ
operates,ȱwhatȱtheȱoperationȱandȱ
maintenanceȱproblemsȱareȱandȱhowȱ
toȱfixȱthemȱresultingȱinȱlessȱmethaneȱ
leaks.ȱȱTheseȱareȱnotȱentirelyȱ
hardwareȱissues.ȱȱExperiencedȱ
workersȱareȱneededȱtoȱhelpȱtrain,ȱ
improveȱprocedures,ȱmaintainȱandȱ
operateȱequipmentȱandȱinȱtheȱ
process,ȱhowȱtoȱminimizeȱmethaneȱ
leaksȱandȱemissions.ȱȱ
Januaryȱ31,ȱ2017ȱ
R.15-01-008 CEK/ek4
ȱ
ȱ
ǦǤͳͷǦͲͳǦͲͲͺ ͳȱofȱ22
ȱ
ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
14ȱIn the ICF International Report, The Economic Analysis of Methane Emission Reduction
Opportunities in the U.S. Onshore Oil and Natural Gas Industries”, pages 3-9 thru 3-11
Mandatoryȱ Methodȱ1ȱ
Category
Logicȱ Deadlineȱ
LeakȱDetectionȱ ȱȱ ȱ
Conductȱleakȱsurveysȱofȱtheȱgasȱ
distributionȱsystemȱoutsideȱbusinessȱ
districts,ȱeveryȱ3ȱyearsȱinsteadȱofȱeveryȱ
5ȱyears,ȱusingȱmodern,ȱdigitalȱdataȱ
acquisitionȱequipmentȱ(e.g.ȱdigitalȱdataȱ
loggers),ȱwhichȱcanȱbeȱdownloadedȱtoȱ
aȱcentralȱdatabase.ȱ
ȱ
ȱ
Monitoringȱ Transitionȱfromȱ5ȱyearȱleakȱsurveysȱ
toȱ3ȱyearȱleakȱsurveysȱforȱtheȱ
followingȱpartsȱofȱtheȱgasȱsystem:ȱȱ
49ȱCFRȱ192.723ȱ–ȱDistributionȱ
systems:ȱLeakageȬsurveysȱ
(b)(2)states,ȱ“Aȱleakageȱsurveyȱwithȱ
leakȱdetectorȱequipmentȱmustȱbeȱ
conductedȱoutsideȱbusinessȱdistrictsȱ
asȱfrequentlyȱasȱnecessary,ȱbutȱatȱ
leastȱonceȱeveryȱ5ȱcalendarȱyearsȱatȱ
intervalsȱnotȱexceedingȱ63ȱmonths.”ȱȱȱ
Further,ȱresearchȱcitedȱbyȱbothȱ
ColoradoȱAirȱQualityȱControlȱ
CommissionȱandȱtheȱEPAȱindicatesȱ
thatȱmoreȱfrequentȱinspectionsȱ
resultȱinȱgreaterȱreductionsȱofȱ
methaneȱemissions14.ȱȱȱLeaksȱareȱ
foundȱsoonerȱandȱhaveȱlessȱtimeȱtoȱ
emitȱnaturalȱgas.ȱȱTheȱlargeȱgasȱ
utilitiesȱallȱappearedȱtoȱbeȱinȱfavorȱ
ofȱthisȱchange.ȱȱMoreȱfrequentȱleakȱ
surveysȱareȱpermittedȱbyȱtheȱCFRs.ȱȱȱ
Beginȱsurveysȱonȱ
3ȱyearȱscheduleȱbyȱ
Januaryȱ31,ȱ2017ȱ
SpecialȱLeakȱSurveysȱ
VintageȱPipe,ȱDistributionȱIntegrityȱ
ManagementȱProgramȱSurveysȱ–ȱ
conductedȱatȱleastȱonceȱperȱyearȱandȱ
upȱtoȱ4ȱtimesȱperȱyear,ȱdependingȱonȱ
specificȱcriteria.ȱȱ
Leakȱsurveysȱtoȱbeȱconductedȱusingȱ
modern,ȱdigitalȱdataȱacquisitionȱ
equipmentȱ(e.g.ȱdigitalȱdataȱloggers),ȱ
whichȱcanȱbeȱdownloadedȱtoȱaȱcentralȱ
database.ȱ
Pipeȱmaterialsȱthatȱareȱmoreȱ
susceptibleȱtoȱleaksȱshouldȱbeȱreplacedȱ
orȱmodifiedȱtoȱmakeȱsafeȱ(e.g.,ȱcastȱironȱ
orȱcertainȱtypeȱofȱplasticȱpipe,ȱ
unprotectedȱsteel.ȱ
ȱ
Monitoring VintageȱPipeȱisȱdeterminedȱbyȱ
materialȱandȱdateȱmanufactured.ȱȱ
Theȱintentȱisȱtoȱfindȱleaksȱonȱ
problematicȱinfrastructureȱandȱ
componentsȱsuchȱasȱAldylȱ“A”ȱ
piping.ȱȱȱ
Beginȱsurveysȱbyȱ
Januaryȱ31,ȱ2017ȱ
R.15-01-008 CEK/ek4
ȱ
ȱ
ǦǤͳͷǦͲͳǦͲͲͺ ͳȱofȱ22
ȱ
Mandatoryȱ Methodȱ1ȱ
Category
Logicȱ Deadlineȱ
LeakȱDetectionȱ ȱȱ ȱ
Mobileȱmethaneȱmappingȱ
technology.ȱ
ȱ
StrategicȱMobileȱMethaneȱMappingȱ
LeveragingȱExistingȱVehicleȱFleetȱ
and/orȱuseȱofȱmobileȱgasȱleakȱ
detection.ȱȱVehiclesȱusedȱforȱthisȱ
purposeȱshouldȱbeȱchosenȱinȱtheȱ
mostȱcostȱeffectiveȱway.ȱȱVehiclesȱ
thatȱareȱrarelyȱusedȱareȱobviouslyȱ
notȱcandidatesȱforȱthisȱtechnology.ȱ
ȱ
Mobileȱmappingȱequipmentȱmustȱ
beȱcapableȱofȱautomaticallyȱ
downloadingȱleakȱdataȱtoȱaȱcentralȱ
database.ȱ
ȱ
Leakȱmapsȱshallȱbeȱpubliclyȱ
availableȱwithȱleaksȱdisplayedȱbyȱ
zipȱcodeȱorȱotherȱmetricȱ(numberȱ
andȱtypeȱofȱleaksȱperȱzipȱcode)ȱ
ȱ
Note:ȱPG&EȱusesȱPicarroȱtoȱfindȱ
andȱalertȱforȱleaks.ȱȱIfȱPicarro’sȱ
equipmentȱsensesȱmethaneȱ
concentrationȱaboveȱ5ȱppm,ȱaȱ
surveyȱisȱconductedȱonȱfootȱtoȱ
determineȱtheȱsourceȱofȱtheȱleak.ȱȱ
Thisȱmethodologyȱwouldȱbeȱsimilarȱ
forȱallȱmobileȱgasȱleakȱdetectionȱ
technology.ȱ
ȱ
ȱ
Monitoringȱ Note:ȱȱWeȱareȱnotȱrequiringȱthisȱ
technologyȱtoȱbeȱusedȱuntilȱJanuary,ȱ2018,ȱ
toȱallowȱtimeȱforȱtheȱtechnologyȱtoȱbeȱ
perfected.ȱȱItȱisȱveryȱcloseȱtoȱbecomingȱ
commerciallyȱavailable.ȱȱȱTechnologyȱ
costsȱcanȱalsoȱbeȱconsideredȱinȱstrategicȱ
implementation.ȱȱ.ȱȱȱȱȱȱȱȱ
ȱ
Pros:ȱȬȱAbleȱtoȱidentifyȱmoreȱleaksȱinȱaȱ
givenȱarea,ȱenablingȱtheȱ“SuperȱCrew”ȱ
methodȱofȱfixingȱleaksȱenȱmasse,ȱresultingȱ
inȱlowerȱcostȱperȱrepair.ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
ȬȱIncreaseȱtheȱnumberȱofȱleaksȱfoundȱinȱaȱ
veryȱcostȬefficientȱway.ȱȱThisȱnewȱ
technologyȱisȱmoreȱsensitiveȱandȱthereforeȱ
findsȱmoreȱleaks.ȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱȱ
ȬLeverageȱmilesȱalreadyȱbeingȱdrivenȱbyȱ
Companyȱvehicles.ȱȱ
ȬNoȱincrementalȱvehicleȱcostȱorȱvehicleȱ
emissions.ȱ
ȬȱForȱSCG,ȱ4,000ȱCompanyȱvehiclesȱ
drivingȱ7,000ȱmi/yrȱ=ȱ28ȱmillionȱmilesȱ
drivenȱannually.ȱȱ
ȬDevelopȱanȱapproachȱthatȱisȱseamlessȱtoȱ
theȱvehicleȱoperator.ȱ
ȬȱUseȱsensorsȱonȱvehicleȱtoȱgatherȱandȱ
communicateȱallȱdataȱautomaticallyȱȱ
ȬȱDevelopȱmethane/odorantȱdetectorȱtoȱ
differentiateȱPipelineȱgas.ȱȱ
ȬPerformȱdataȱanalysisȱinȱcentralizedȱ
location.ȱȱ
ȬLargeȱdataȱvolumeȱmayȱallowȱmodelingȱ
ofȱatmosphericȱmethaneȱlevelsȱacrossȱ
entireȱserviceȱterritory.ȱȱ
ȬCompanyȱvehiclesȱusuallyȱdriveȱinȱareasȱ
theȱcompaniesȱhaveȱfacilitiesȱ.ȱ
ȬCentrallyȱcoordinateȱstandardȱworkȱ
ordersȱforȱOperationsȱtoȱinvestigateȱ
locationsȱofȱconcern.ȱ
ȬSynergisticȱbetweenȱCompanyȱ
operations.ȱ
ȱ
Cons:ȱȬȱAlgorithmsȱandȱmethodsȱareȱstillȱ
beingȱimprovedȱtoȱmakeȱtheȱequipmentȱ
moreȱaccurateȱandȱefficient.ȱ
Beginȱbyȱ
Januaryȱ31,ȱ2018ȱ
R.15-01-008 CEK/ek4
ȱ
ȱ
ǦǤͳͷǦͲͳǦͲͲͺ ͳͺȱofȱ22
ȱ
ȱȱ
Mandatoryȱ Methodȱ1ȱ
Categoryȱ
Logicȱ Deadlineȱ
LeakȱDetectionȱ ȱȱ ȱ
StationaryȱMethaneȱDetectorsȱforȱ
CompressorȱStations,ȱTerminals,ȱGasȱ
StorageȱFacilities,ȱorȱlargeȱ
concentrationsȱofȱequipmentȱorȱpiping.ȱȱ
Theseȱareȱespeciallyȱusefulȱatȱ
unmannedȱfacilities.ȱȱMethaneȱ
detectorsȱmustȱalarmȱinȱmannedȱ
controlȱroomsȱorȱmannedȱfacilities.ȱForȱ
undergroundȱstorageȱfacilities,ȱ
requirementsȱwouldȱbeȱharmonizedȱ
withȱotherȱmonitoringȱrequirements.ȱȱȱ
Monitoringȱ Earlyȱwarningȱisȱessentialȱtoȱreducingȱ
theȱamountȱofȱmethaneȱemittedȱorȱ
leaked,ȱespeciallyȱatȱgasȱstorageȱ
facilitiesȱwhichȱareȱunmanned.ȱȱThisȱ
isȱalsoȱaȱsafetyȱissue.ȱȱRecentȱresearchȱ
conductedȱforȱtheȱEnvironmentalȱ
DefenseȱFundȱ(EDF)ȱhasȱidentifiedȱ
inexpensiveȱ(<$10000),ȱreliableȱ
stationaryȱmethaneȱdetectors.ȱȱ
Althoughȱtheyȱareȱstillȱconsideredȱinȱ
R&D,ȱitȱisȱanticipatedȱthatȱtheyȱwillȱ
beȱcommerciallyȱavailableȱbyȱFeb.ȱ
2018.ȱ
Februaryȱ28,ȱ2018ȱ
Moreȱfrequentȱperiodic,ȱpossiblyȱ
quarterly,ȱleakȱdetectionȱandȱrepairȱ
(LDAR)ȱinspectionsȱatȱaboveȱgroundȱ
transmissionȱfacilitiesȱwithȱrepairȱdatesȱ
determinedȱbyȱleakȱsize.ȱȱScheduleȱandȱ
scopeȱtoȱbeȱdetermined.ȱȱUseȱEPAȱ
Methodȱ21,ȱopticalȱgasȱimaging,ȱorȱ
otherȱmethodsȱforȱaboveȱgroundȱ
facilities/leaks.ȱ
ȱ
Monitoringȱ Transmissionȱfacilitiesȱwithȱaȱhighȱ
concentrationȱofȱequipmentȱandȱotherȱ
componentsȱareȱmoreȱproneȱtoȱleaksȱ
andȱventedȱemissions.ȱȱInȱaddition,ȱ
sinceȱtheyȱareȱinȱaȱmoreȱconcentratedȱ
areaȱitȱisȱeasierȱtoȱperformȱleakȱ
surveys.ȱȱQuarterlyȱleakȱdetectionȱ
andȱrepairȱinspectionsȱareȱreasonableȱ
andȱmostȱlikelyȱwillȱbeȱcostȬeffective.ȱ
Februaryȱ28,ȱ2018ȱ
UseȱofȱhandȬheldȱdetectionȱdevicesȱtoȱ
identifyȱ&ȱquantifyȱtheȱsourcesȱofȱ
leaks.ȱ
ȱ
ȱ
ȱ
Monitoring,ȱ
Existingȱ/ȱ
Standardȱ
Practicesȱ
Theȱmostȱsensitiveȱequipmentȱfindsȱ
theȱmostȱleaks.ȱȱThereȱareȱmanyȱ
devicesȱavailable.ȱȱReferȱtoȱtheȱMarchȱ
18,ȱ2015ȱBestȱPracticesȱReport,ȱ
AppendixȱAȱonȱtheȱRiskȱAssessmentȱ
websiteȱunderȱRecentȱDocuments:ȱȱ
http://www.cpuc.ca.gov/riskassessme
nt/.ȱȱForȱexample,ȱaȱtunableȱlaserȱ
spectrometerȱisȱunderȱdevelopmentȱ
byȱNASA.ȱȱItȱisȱexpectedȱtoȱbeȱ
commerciallyȱavailableȱforȱ<$5000.ȱȱItȱ
willȱhaveȱaȱmeasuringȱsensitivityȱinȱ
theȱpartsȱperȱbillionȱ(ppb)ȱrange.ȱȱTheȱ
newestȱequipmentȱwillȱbeȱmoreȱ
reliable,ȱlowerȱmaintenanceȱandȱmoreȱ
sensitiveȱcomparedȱtoȱolderȱ
technologies.ȱ
ȱ
Februaryȱ28,ȱ2018ȱ
R.15-01-008 CEK/ek4
ȱ
ȱ
ǦǤͳͷǦͲͳǦͲͲͺ ͳͻȱofȱ22
ȱ
ȱȱ
Mandatoryȱ Methodȱ1ȱ
Category
Logicȱ Deadlineȱ
LeakȱRepairsȱ ȱȱ ȱ
RepairingȱGradeȱ2ȱandȱGradeȱ3ȱleaksȱ
withinȱcertainȱtimeframeȱ(TBD),ȱratherȱ
thanȱkeepȱmonitoring.ȱȱ
ȱ
“FindȱItȱFixȱItȱPolicy”:ȱLeakȱRepairȱ
TimelineȱandȱBacklogsȱ
ȱ
TheȱLeakȱrepairȱtimeȱforȱGradeȱ2ȱandȱ
Gradeȱ3ȱleaksȱaboveȱaȱcertainȱsizeȱ
thresholdȱ(TBD)ȱareȱrepairedȱonȱanȱ
acceleratedȱtimeline,ȱwithinȱoneȱyearȱ
fromȱdiscovery,ȱmeaningȱtheȱutilitiesȱ
haveȱoneȱyearȱfromȱwhenȱtheyȱdetectȱaȱ
Gradeȱ2ȱorȱaboveȱgroundȱGradeȱ3ȱleakȱ
toȱfixȱit.ȱȱThisȱwouldȱapplyȱtoȱallȱleaksȱ
foundȱafterȱDecemberȱ15,ȱ2016.ȱȱȱȱȱ
ȱ
Note:ȱInȱnoȱcaseȱshallȱtheȱtimeȱtoȱrepairȱ
aȱleakȱexceedȱtheȱrepairȱtimesȱspecifiedȱ
inȱG.O.ȱ112ȱFȱandȱsucceedingȱrevisions,ȱ
orȱasȱorderedȱbyȱtheȱCPUCȱGasȱSafetyȱ
andȱReliabilityȱBranch.ȱ
ȱ
Backlogsȱ–ȱUtilitiesȱwillȱbeȱallowedȱ
untilȱOctoberȱ1,ȱ2018ȱtoȱeliminateȱtheirȱ
backlogȱofȱaboveȱgroundȱGradeȱ3ȱleaksȱ
foundȱpriorȱtoȱDecemberȱ15,ȱ2016.ȱ
ȱ
Note:ȱȱGradingȱterminologyȱvariesȱ
betweenȱutilities.ȱȱGradeȱcanȱalsoȱbeȱ
referredȱtoȱasȱCode.ȱȱSomeȱutilitiesȱ
mayȱalsoȱhaveȱGradeȱ2+ȱleaks.ȱȱGradeȱ
2+ȱleaksȱshallȱbeȱrepairedȱwithinȱtheȱ
sameȱtimeȱlimitȱasȱGradeȱ2ȱleaksȱunlessȱ
requiredȱbyȱtheȱCFRs,ȱG.O.ȱ112F,ȱorȱtheȱ
CPUCȱGasȱSafetyȱandȱReliabilityȱ
Branchȱtoȱbeȱrepairedȱsooner.ȱ
ȱ
ȱ
Monitoringȱ
andȱ
Maintenanceȱ
Practicesȱ
PG&Eȱisȱalreadyȱrepairingȱtheseȱ
withinȱtheȱfirstȱ15ȱmonthȱcycle.ȱȱ
PG&Eȱhasȱfoundȱthisȱpracticeȱtoȱbeȱ
costȬeffective.ȱ
ȱ
*Thereȱwillȱbeȱinitialȱcosts,ȱhoweverȱ
onceȱtheȱprogramȱisȱinȱplace,ȱcostsȱ
areȱexpectedȱtoȱdecreaseȱbecauseȱ
lessȱleaksȱwillȱbeȱfoundȱtoȱfix,ȱandȱ
lessȱleaksȱwillȱhaveȱtoȱbeȱmonitoredȱȱ
*Potentialȱincreaseȱinȱcapitalȱforȱ
repairsȱandȱexpenseȱforȱlabor.ȱ
ȱ
Note:ȱExtendedȱtimeȱisȱallowedȱforȱ
thoseȱleaksȱwhichȱcannotȱbeȱfixedȱonȱ
timeȱdueȱtoȱpermittingȱproblemsȱorȱ
otherȱproblemsȱbeyondȱtheȱutility’sȱ
control.ȱ
Octoberȱ1,ȱ2018ȱ
R.15-01-008 CEK/ek4
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Mandatoryȱ Methodȱ1ȱ
Category
Logicȱ Deadlineȱ
LeakȱPreventionȱ ȱȱ ȱ
Reviseȱpipeȱfittingȱspecificationsȱtoȱ
requireȱtighterȱtolerance/betterȱqualityȱ
pipeȱthreads.ȱ
Designȱ Thisȱisȱbeingȱaddedȱasȱaȱmandatoryȱ
practiceȱbecauseȱofȱtheȱveryȱlargeȱ
numberȱofȱthreadedȱfittingsȱandȱtheirȱ
knownȱpropensityȱtoȱdevelopȱleaks.ȱȱȱ
ȱ
Thisȱisȱbeingȱrecommendedȱasȱaȱ
mandatoryȱBP,ȱprovidedȱthatȱfurtherȱ
researchȱprovesȱthisȱtoȱbeȱaȱcostȬ
effective.ȱȱIfȱso,ȱutilitiesȱwillȱnotȱbeȱ
requiredȱtoȱreplaceȱallȱthreadedȱ
connectionsȱimmediately,ȱbutȱratherȱ
replaceȱthemȱasȱincidentalȱworkȱisȱ
requiredȱtoȱbeȱperformedȱonȱthem.ȱ
ȱ
Thisȱparticularȱpracticeȱwillȱbeȱtoȱuseȱ
ANPTȱpipeȱthreadsȱinsteadȱofȱNPT.ȱȱ
However,ȱotherȱtypesȱofȱthreadsȱorȱ
connectionsȱmayȱproveȱbetter.ȱȱLeaksȱ
fromȱthreadedȱconnectionsȱareȱ
usuallyȱnotȱaȱresultȱofȱinitialȱ
installation.ȱȱLeaksȱareȱusuallyȱaȱ
resultȱofȱwhatȱhappensȱlaterȱ
(corrosion,ȱthingsȱbumpingȱintoȱtheȱ
MSAs,ȱcustomerȱabuse,ȱetc.).ȱȱMostȱ
likelyȱthisȱpracticeȱwillȱresultȱinȱanȱ
incrementalȱreductionȱofȱemissions.ȱ
Februaryȱ28,ȱ2017ȱ
Methods,ȱsystemsȱandȱcomponentsȱ
usedȱtoȱpreventȱand/orȱstopȱtheȱ
uncontrolledȱflowȱofȱmethaneȱfromȱaȱ
gasȱsystemȱorȱstorageȱfacility.ȱ
ȱ
Thisȱrequirementȱshouldȱnotȱbeȱ
duplicativeȱtoȱtheȱDOGGR’sȱorȱCARB’sȱ
Oilȱ&ȱGasȱRegulations.ȱ
Design,ȱ
Processȱandȱ
Programȱ
Developmentȱ
&ȱTraining,ȱIMȱ
Crossoverȱ
Storageȱfacilitiesȱcontainȱlargeȱ
volumesȱofȱmethane.ȱȱAnȱ
uncontrolledȱreleaseȱwillȱnegateȱtheȱ
methaneȱreductionsȱofȱotherȱutilities,ȱ
increaseȱgreenhouseȱgasesȱandȱ
endangerȱpublicȱhealthȱbyȱreleasingȱ
largeȱamountsȱofȱodorantȱandȱotherȱ
toxicȱnaturalȱgasȱbyȬproducts.ȱ
Februaryȱ28,ȱ2017ȱ
DigȬInsȱ–ȱPublicȱeducationȱprogramȱtoȱ
alertȱtheȱpublicȱandȱcontractorsȱtoȱtheȱ
CallȱBeforeȱYouȱDigȱ–ȱ811ȱprogram.ȱȱInȱ
addition,ȱutilitiesȱmustȱprovideȱ
proceduresȱforȱcontractorsȱtoȱfollowȱ
whenȱexcavatingȱtoȱpreventȱdamagingȱ
orȱrupturingȱaȱgasȱline.ȱ
Existingȱ
Practice,ȱȱ
Processȱandȱ
Programȱ
Developmentȱ
&ȱTrainingȱ
DigȬInsȱareȱtheȱmajorȱcauseȱofȱgasȱ
lineȱruptures.ȱ
Now.ȱ
R.15-01-008 CEK/ek4
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DigȬInsȱ–ȱUtilitiesȱmustȱprovideȱ
companyȱmonitorsȱtoȱwitnessȱallȱ
excavationsȱnearȱgasȱtransmissionȱlinesȱ
toȱensureȱthatȱcontractorsȱareȱfollowingȱ
utilityȱproceduresȱtoȱproperlyȱexcavateȱ
andȱbackfillȱaroundȱtransmissionȱlines.ȱȱ
Monitoring,ȱ
Existingȱ
Practiceȱ
Thisȱisȱnecessaryȱtoȱensureȱthatȱ
peopleȱexcavatingȱaroundȱtheȱlineȱdoȱ
notȱdamageȱitȱorȱruptureȱit.ȱȱItȱisȱ
possibleȱtoȱhaveȱanȱexcavatorȱnickȱorȱ
damageȱaȱtransmissionȱlineȱcausingȱitȱ
toȱruptureȱyearsȱlater.ȱ
Nowȱ
DigȬInȱRepeatȱOffendersȱ–ȱContractorsȱ
foundȱtoȱbeȱatȱfaultȱmoreȱthanȱonceȱbyȱ
aȱCPUCȱinvestigation,ȱforȱrupturingȱaȱ
gasȱline,ȱmustȱbeȱlabelledȱRepeatȱ
Offenders.ȱTheyȱmustȱbeȱforbiddenȱ
fromȱexcavatingȱnearȱgasȱlinesȱinȱtheȱ
future.ȱȱInȱaddition,ȱtheȱutilityȱmustȱbeȱ
reportȱthemȱtoȱtheȱCaliforniaȱ
Contractor’sȱStateȱLicenseȱBoard.ȱȱTheȱ
Boardȱhasȱtheȱauthorityȱtoȱinvestigateȱ
andȱpunishȱdishonestȱorȱnegligentȱ
contractors.ȱȱPunishmentȱcanȱincludeȱ
suspensionȱofȱtheirȱcontractor’sȱlicense.ȱ
Regulatoryȱ Repeatȱoffendersȱofȱtheȱ811ȱlawsȱareȱ
common.ȱȱThisȱmustȱnotȱbeȱtolerated.ȱ
Nowȱ
R.15-01-008 CEK/ek4
(End of Attachment 1)
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ATTACHMENTS
AttachmentȱAȱȬȱBestȱPracticesȱConsolidatedȱSpreadsheetȱȱ
TheȱExcelȱspreadsheetȱinȱAttachmentȱA,ȱfoundȱonȱtheȱRisk Assessment website at
http://www.cpuc.ca.gov/riskassessment/ȱisȱtheȱworkȱproductȱfromȱtheȱBestȱPracticesȱ
WorkingȱGroup.ȱȱAllȱspreadsheetsȱsubmittedȱbyȱtheȱpartiesȱhaveȱbeenȱmergedȱtogetherȱ
(consolidated)ȱandȱnotesȱfromȱallȱofȱtheȱmeetingsȱhaveȱbeenȱaddedȱinȱRedȱintoȱtheȱ
columnȱtitledȱ“AdditionalȱCommentsȱfromȱMeeting.”ȱȱPG&Eȱparticipantsȱagreedȱtoȱ
categorizeȱtheȱBPsȱforȱus,ȱusingȱtheȱcategoriesȱfoundȱinȱMethodȱ1ȱandȱMethodȱ2.ȱȱTheȱ
spreadsheetȱthatȱtheyȱdevelopedȱwasȱcirculatedȱbyȱPG&EȱtoȱtheȱServiceȱList.ȱȱTheȱstaffȱ
ofȱtheȱCPUCȱprefersȱMethodȱ1;ȱhoweverȱpartiesȱareȱfreeȱtoȱuseȱwhateverȱmethodȱtheyȱ
chooseȱtoȱhelpȱthemȱorganizeȱandȱcategorizeȱBPsȱforȱtheirȱpurposes.ȱȱ
ȱ
TheȱstaffȱofȱtheȱCPUCȱmodifiedȱMethodȱ1ȱslightly.ȱȱWeȱhaveȱaddedȱtwoȱcategoriesȱtoȱ
theȱMethodȱ1ȱlist.ȱȱTheȱcategoriesȱareȱ“Design”ȱandȱ“RegulatoryȱIssue.”ȱȱTheȱcategoryȱ
“Design”ȱisȱneededȱbecauseȱsomeȱBPsȱrequireȱdesignȱchangesȱtoȱgasȱsystemȱ
infrastructure.ȱȱInȱaddition,ȱtheȱstaffȱofȱtheȱCPUCȱhasȱcolorȬcoded,ȱinȱlightȱgreen,ȱBPsȱ
whichȱareȱalsoȱrecommendedȱbyȱtheȱEPAȱGasȱStarȱProgramȱandȱaddedȱtheȱlistȱofȱBPsȱ
meetingȱtopics,ȱinȱtheȱyellowȱbox,ȱinȱtheȱupperȱrightȬhandȱcornerȱofȱtheȱspreadsheet.ȱ
ȱ
ȱ
ȱ
ȬENDȬȱ
R.15-01-008 CEK/ek4
ATTACHMENT A
(End of Attachment A)
ATTACHMENT 2
October 4, 2016
Michael Picker, President
California Public Utilities Commission
505 Van Ness Avenue
San Francisco, CA 94102
RE: Support for Natural Gas Leakage Abatement Summary of Best Practices and
Staff Recommendations
Dear Mr. Pickler,
The City of Azusa understands that the California Public Utilities Commission (CPUC) and
California Air Resources Board (CARB) has developed proposed recommendations calling for
better training programs, more trained and experienced personnel in the field, better leak
detection processes, and a defined timeline to fix known leaks.
The City applauds the CPUC and CARB staff for developing these recommendations and urges
their adoption to improve worker safety and to further reduce the risk of damage to the
environment from explosions, air pollution, and other climate change impacts due to natural gas
leaks.
If you have any questions or comments concerning our support for these recommendations,
please contact Troy Butzlaff, ICMA-CM, City Manager, at tbutzlaff@ci.azusa.ca.us or 626-812-
5238.
Sincerely,
The Azusa City Council
Joseph Romero Rocha, Mayor
Angel Carrillo, Mayor Pro Tern Edward J. Alvarez, Councilmember
Uriel E. Macias, Councilmember Robert Gonzales, Councilmember