# New Mexico Public Regulation Commission — Pipeline Safety Interpretation

- **operation:** document
- **citation:** PI-09-0019
- **title:** New Mexico Public Regulation Commission — Pipeline Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2010-03-22
- **effective on:** Not available
- **summary:** PI-09-0019 response to New Mexico Public Regulation Commission concerning 192.3.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-09-0019.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-09-0019.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-09-0019
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/2009/PI-09-0019.pdf
**body:**

<<<PAGE 1>>>

u . S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, D.C. 20590
MAR 2 2 2010
Mr. Joe M. Johnson
Acting Bureau Chief
New Mexico Public Regulation Commission
Pipeline Safety Bureau
1120 Paseo de Peralta
Santa Fe, New Mexico 87504
Dear Mr. Johnson:
In a letter to the Pipeline and Hazardous Materials Safety Administration (PHMSA) dated
September 15,2009, you requested an opinion/interpretation on whether the following pipelines
operated by New Mexico Gas Company (NMGC) should be regulated as transmission pipelines
or distribution pipelines (as described by New Mexico Public Regulation Commission):
1. Animas Power Plant 6" diameter - an intrastate natural gas pipeline that transports natural
gas from a transmission line to a large volume customer (Animas Power Plant).
2. Farmington (Bluffview) Power Plant 8" diameter - an intrastate natural gas pipeline that
transports natural gas directly from a transmission line to large volume customers
(Animas and Bluffview power plants).
3. Tucumcari Mainline - an intrastate natural gas pipeline that transports natural gas directly
from a transmission to distribution centers (Tucumcari Townplant, Northeast Regulator
Station, and Baker Kelso Regulator Station). This pipeline is a continuation of the Clovis
Transmission Line that transports natural gas from EI Paso Natural Gas Company's
intrastate pipeline system to New Mexico Gas Company's Northeast Area distribution
centers, and is not downstream of a distribution center.
NMGC has designated a valve at the Clovis Border Regulator Station as the end point of
the Clovis Transmission Line and the beginning of the Tucumcari and Cannon mainlines.
The Clovis Transmission line and the Tucumcari and Cannon mainlines all operate at 300
psig. The Tucumcari Mainline runs approximately 62 miles from Mile Post 0 at the
Clovis Border Regulator Station to the Tucumcari Townplant distribution center.
4. Cannon Mainline - an intrastate natural gas pipeline that transports natural gas directly
from a transmission to distribution centers (Northwest Regulator Station, Mixon lane
Regulator Station, Hayfield Farmers Regulator Station, 6084 Regulator Station, Port Air
Dairyman Regulator Station, Port Air Farmers Regulator Station, and Clovis Expansion
Regulator Station). This pipeline is a continuation ofthe Clovis Transmission line that
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations (49 CFR
Parts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the specific facts
presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and are provided to
help the public understand how to comply with the regulations.

<<<PAGE 2>>>

2
transports natural gas from EI Paso Natural Gas Company's Intrastate pipeline system to
New Mexico Gas Company's Northeast Area distribution centers, and is not downstream
of a distribution center.
5. Northeast Distribution Mainline - an intrastate natural gas pipeline. The pipeline is a
loop line that can be used to: (a) transports natural gas from EI Paso Natural Gas
Company's interstate pipeline via NMGC's Clovis Transmission line to the Tucumcari
Townplant distribution center without going to the Clovis Border Regulator Station, or
(b) transport natural gas to the Clovis Townplant distribution center via the Tucumcari
Mainline.
6. Portales Mainline - an intrastate natural gas pipeline that transports natural gas from the
Clovis Transmission line, and Transwestern's interstate transmission line to distribution
centers (Portales Townplant, Grinder Regulator Station, Baxter Regulator Station,
Midway Regulator Station, and Cameo Regulator Station). Pressure on the pipeline is
regulated at 200 psig just downstream of the Transwestern interconnect at the Clovis
Transmission line. There are no service lines on the Portales Mainline and the pipeline
runs approximately 20 miles to the Portales Townplant distribution center.
Based on the provided information, we agree with the Commission's determination that all of
the specified lines meet the definition of a transmission line. PHMSA' s responses concerning
each of the specified lines are as follows:
1. Regarding the Animas Power Plant 6" line, we believe this line is a transmission line
because under the first definition of a transmission line this line transports gas from a
transmission line to a large volume customer that is not downstream from a distribution
center.
2. Regarding the Farmington (Bluffview) Power plant 8" line, we believe this line is a
transmission line because under the first definition of a transmission line this line
transports gas from a transmission line to a large volume customer that is not downstream
from a distribution center.
3. Regarding the Tucumcari Mainline, we do not consider a decrease in pressure to below
20 percent SMYS at a transmission line to be a "distribution center" and lines
downstream of that point to be distribution lines - this would violate the intent of the
pipeline safety regulations. We consider a "distribution center" to be the point where gas
enters piping used primarily to deliver gas to customers who purchase it for consumption
as opposed to customers who purchase it for resale. Therefore, in our opinion, this line is
an extension of the Clovis transmission line.
4. Regarding the Cannon Mainline, we do not consider a decrease in pressure to below 20
percent SMYS at a transmission line to be a "distribution center" and lines downstream
of that point to be distribution lines - this would violate the intent of the pipeline safety
regulations. We consider a "distribution center" to be the point where gas enters piping
used primarily to deliver gas to customers who purchase it for consumption as opposed to
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations
(49 CFR Parts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the
specific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and
are provided to help the public understand how to comply with the regulations.

<<<PAGE 3>>>

3
customers who purchase it for resale. Therefore, in our opinion, this line is an extension
of the Clovis transmission line.
5. Regarding the Northeast Distribution Mainline, we do not consider a decrease in pressure
to below 20 percent SMYS at a transmission line to be a "distribution center" and lines
downstream of that point to be distribution lines - this would violate the intent of the
pipeline safety regulations. We consider a "distribution center" to be the point where gas
enters piping used primarily to deliver gas to customers who purchase it for consumption
as opposed to customers who purchase it for resale. Therefore, in our opinion, this line is
an extension of the Clovis transmission line or the Tucumcari Mainline as described by
PSB.
6. Regarding the Portales Main line, we do not consider a decrease in pressure to below 20
percent SMYS at a transmission line to be a "distribution center" and lines downstream
of that point to be distribution lines - this would violate the intent of the pipeline safety
regulations. We consider a "distribution center" to be the point where gas enters piping
used primarily to deliver gas to customers who purchase it for consumption as opposed to
customers who purchase it for resale. Therefore, in our opinion, this line is an extension
of the Clovis Transmission line and Transwestern transmission line.
For your information, on September 25,2009, PHMSA received a letter from NMGC concerning
your interpretation request. PHMSA is providing NMGC with a copy of this letter and a copy of
PHMSA's response to NMGC is enclosed. I hope that this information is helpful to you. If! can
be of further assistance, please contact me at (202) 366-4046.
Enclosures
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations
(49 eFR Parts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the
specific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and
are provided to help the public understand how to comply with the regulations.

<<<PAGE 4>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, D.C. 20590
MAR 2 2 2010
Mr. Thomas M. Domme
Vice President and General Counsel
New Mexico Gas Company
P.O. Box 97500
Albuquerque, NM 87199-7500
Dear Mr. Domme:
In a letter to the Pipeline and Hazardous Materials Safety Administration (PHMSA) dated
September 25,2009, you expressed your views concerning a September 15,2009, request for
interpretation submitted to PHMSA by the New Mexico Public Regulation Commission
(Commission). You explained that New Mexico Gas Company (NMGC) was engaged in
settlement talks with the Commission concerning a matter that potentially involved the issues for
which the Commission sought interpretation from PHMSA.
To the extent you questioned the procedural validity of the Commission's request, we find it was
properly submitted. PHMSA maintains open and continuous communications with our State
regulatory partners at a variety of formal and informal levels. Note that requests for
interpretation are explanatory in nature and are intended only to apply existing laws and
requirements to a particular scenario presented by the requester. Interpretations do not create
new requirements not already in the pipeline safety laws and regulations.
To the extent you questioned the factual details set forth by the Commission in its request, please
be advised that PHMSA must assume the scenario presented by the requester is the one the
requester is interested in for purposes of obtaining information on how the regulations would
apply. PHMSA makes no attempt to investigate or otherwise verify the information provided by
the requester (in some cases, the scenarios presented to PHMSA by a requester may even be
hypothetical). In preparing our response to the Commission, however, we were aware of the
information you provided in your September 25,2009, letter, and as you know my staff had
telephone conversations with NMGC as well as the Commission. For your information, a copy
ofPHMSA's response to the Commission is enclosed with this letter.
The Pipeline and Hazardous Materials Safety Administration. Office of Pipeline Safety provides written clarifications of the Regulations (49 CFR
Parts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the specific facts
presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and are provided to
help the public understand how to comply with the regulations.

<<<PAGE 5>>>

2
I hope that this information is helpful to you. If I can be of further assistance, please contact me
at (202) 366-4046.
Sincerely,
~
John A. Gale
Director, Office of Regulations
Enclosure
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations
(49 CFR Parts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the
specific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and
are provided to help the public understand how to comply with the regulations.

<<<PAGE 6>>>

PHP Controlled Correspondence Sheet
PHMSA Control Number: Action Office: PHP- 30
PHP Control Number: 10-0008 Due Date: 12114/2009
Writer: Thomas M. Domme
Subject: : Re: New Mexico Gas Company's Position Concerning New
Mexico PSB September 15,2009 Request for Opinion/Interpretation of
Certain Transmission and Distribution Pipelines
Action: Opinion/Interpretation
Date Action Action by
Date Note Note by
For more information please contact:
Glenda Marshall, Glenda.marshall@dot.gov

<<<PAGE 7>>>

15057974752 nmgco NMGCO 11:01:44a.m. 09-28-2009
1 16
New Mexico
GAS COMPANY
P.O. Box 97500
Albuquerque, NM 87199-7500
Thomas M. Domme
Vice President & General Counsel
505·697·3834 (direct)
505·250.1419 (cell)
tom.doollne@nmgco.com
SEP 292009
FAX MEMORANDUM
TO:
FROM:
Jeff Wiese
USDOTIPHMSA
Tom Domme
New Mexico Gas Company
Number of Pages (including this cover page): _....;6~_
FAX No.: 202-366-3666
Dear Me. Wiese:
Attached please find a copy of my letter sent to you dated September 25, 2009. The original was
sent on Friday September 25th and should arrive via first class mail. Also attached is the letter
dated September 15, 2009 from the New Mexico Public Regulation Commission's Pipeline
Safety Bureau regarding request for opinion/interpretation, which was inadvertently left out of
the mailing.
Thank you.
Cc: A veIino Gutierrez (via emaiJ)
Joe Johnson (via email)

<<<PAGE 8>>>

15057974752 nmgco
NMGCO
11 :01 :58 a.m. 09-28-2009
2/6
New Mexico
GAS COMPANY
Thomas M. [)onnne
Vice President & General Counsd
505·697·.'834 (dimn
505·250-1419 (cell)
September 25.2009
Jeff Wiese
U.S Department of Transportation
Pipeline & Hazardous Materials Safety Administration
East Building, 2nd Floor
1200 New Jersey Avenue. SE
Washington, DC 20590
A velino Gutierrez
NM Public Regulation Commission
P.O. Box 1269
Santa Fe, NM 87504-1269
Joe Johnson
Pipeline Safety Bureau
NM Public Regulation Commission
P.O. Box 1269
Santa Fe, NM 87504-1269
Re: September 15,2009 New Mexico PSB request for opinion/interpretation.
Gentlemen,
New Mexico Gas Company ("NMGC") is in receipt of a September IS, 2009 request for
opinion/interpretation ("Request") from Mr. Joe Johnson, Acting Bureau Chief of Pipeline
Safety for the State of New Mexico ("PSB"). A copy of the Request is attached for your
convenience. The Request asks for an opinion/interpretation on whether six identified pipelines
operated by NMGC are transmission or distribution pipelines and provides an interpretation of
49 c.F.R. 192.3. Our initial review of the Request raises concerns and questions about the
procedural validity of the Request, and well as the scope and factual details of the Request, and
we will be preparing a detailed response to the Request. In short, in NMGC's view, the
interpretation of the regulation in the Request is incorrect in several respects, and fails to
recognize the provisions in the remainder of the definition as well as the history behind this
issue. NMGC anticipates providing its response within ten days.
By way of brief background, this issue has been the focus of many discussions and meetings in
New Mexico between representatives of PSB and the gas utility since at least 1992. It was
NMGC's understanding that these discussions were ongoing. As recently as 2007, a settlement
discussion was held between PSB and the utility, and over the last two years additional
conversations were held between the former PSB Bureau Chief, Bruno Carrara. and NMGC.
NMGC anticipated and was told to anticipate a response from PSB directly to NMGC regarding
PSB's latest position in these ongoing discussions. NMGC was never informed and was not
aware that PSB was intending to suomi! the Request, and NMGCs input into the form of the
requeo.;t wus not sought. NMGC remains of the opinion that discuso.;ion in New Mexico would he
the Illore fruitful avenue for rc ... olution and intends to approach PSB to altcmpt further
di ... cllssions on thc ... c i .... sllcs.
P.O. Box 97500. Albuquerque, NM 87199-7500 • p: 888 NMGASCO • www.nmgco.com

<<<PAGE 9>>>

NMGCO 11:02:26a.m. 09-28-2009
3/6
15057974752 nmgco
Jeff Wiese, et al.
September 25,2009
Page 2
As an aside, it is not clear, but it appears that the Request is being made under 49 C.F.R. 190.11
for informal guidance and interpretation. If so, then the Request is technically misdirected to the
Associate Administrator, and should be redirected or forwarded consistent with 190.11 (b) to the
Office of Pipeline Safety generally for an informal interpretation. Further, although not spelled
out in 190.11 (b), as indicated above, NMGC intends to respond to the Request to provide a fuller
and more detailed picture of the issue presented. To the extent leave is required to provide such
a response under 190.11(b), NMGC seeks such leave.
Finally, because the Request could have far reaching implications throughout the State of New
Mexico, to other states, and even to other utilities, NMGC will be soliciting input from other gas
utilities and the American Gas Association on this issue and will either incorporate these
positions in its response, or solicit direct input by these entities.
cc: Rick Backes
Gary Roybal
Rebecca Carter
P.O. Box 97500 . Albuquerque, NM 87199·7500 p: 888 NMGASCO . www.nmgco.com

<<<PAGE 10>>>

15057974752 nmgco NMGCO 11 :02: 43a .m. 09-28-2009
4 /6
NEW MEXICO PUBLIC REGULATION CONIMISSION
COMMISSIONERS
DISTRICT I JASON MARKS
DISTRICT 2 DAVID W. KING, VICE CHAIRMAN
DISTRICT 3 JEROME D. BLOCK
DISTRICT 4 CAROL K. SLOAN
DISTRICT 5 SANDY JONES, CHAIRMAN
Daniel Mayfield, Chief of Staff
Transportation Diviswn
Pipeline Safety Bureau
1120 Poseo de Peralta
Santa Fe, New Mexico 87504
Main Line (50S) 476-0298
Emergency (505) 490-2375
Fax (505)827-4388
September 15, 2009
Mr. Jeff Wiese, Associate Administrator
US DOT /PHMSA/OPS
PHH-l
. 1200 New Jersey Avenue, SE
East Bldg., 2nd Floor
Washington, DC 20590
Dear Mr. Wiese:
I am writing to request an opinion/interpretation on whether the following pipelines operated by New
Mexico Gas Company (NMGC) are transmission or distribution pipelines:
1) Animas Power Plant 6"
2) Farmington (Bluffview) Power Plant 8"
3) Tucumcari Mainline
4) Cannon Mainline
5} Northeast Distribution Mainline
6) Portales Mainline
NMGC claims that the pipelines are not transmission lines because they operate at less than 20% of
specified minimum yield strength.
1

<<<PAGE 11>>>

15057974752 nmgco NMGCO 11:03:01 a.m. 09-28-2009
5/6
Our staff has reviewed the definition of transmission lines in 49 CFR § 192.3 and the preamble of the
most recent change In this regulation (RSPA-99.f)106;Amdt. 192-94) and concluded that the pipelines
are transmission lines for the following reasons:
1) The Animas Power Plant 6" is an intrastate natural gas pipeline that transports natural gas from
a transmission line to a large volume customer (Animas Power Plant). It Is our opinion that the
pipeline is not downstream of a distributIon center. (See Drawing #1]
2) The Farmington (Bluffview) Power Plant 8" is an intrastate natural gas pipeline that transports
natural gas directly from a transmission line to large volume customers (Animas and Bluffview
power plants). [See Drawing #1]
3} The Tucumcari Mainline is an intrastate natural gas pipeline that transports natural gas directly
from a transmission to distribution centers (Tucumcari Townplant, Northeast Regulator Station,
and Baker Kelso Regulator Station). This pipeline is a continuation of the CloviS Transmission
Line that transports natural gas from EI Paso Natural Gas Company's intrastate pipeline system
to New Mexico Gas Company's Northeast Area distribution centers, and is not downstream of a
distribution center.
NMGC has designated a valve at the Clovis Border Regulator Station as the end point of the
Clovis Transmission Line and the beginning of the Tucumcari and Cannon mainlines. (See
Pictures 1,2&3, and Drawing #2) The Clovis Transmission line and the Tucumcari and Cannon
mainlines all operate at 300 psig. The Tucumcari Mainline runs approximately 62 miles from
Mile Post 0 at the Clovis Border Regulator Station to the Tucumcari Townplant distribution
center. (See Drawing #3)
4) The Cannon Mainline is an intrastate natural gas pipeline that transports natural gas directly
from a transmission to distribution centers (Northwest Regulator Station, Mixon lane Regulator
Station, Hayfield Farmers Regulator Station, 6084 Regulator Station, Port Air Dairyman
Regulator Station, Port Alr Farmers Regulator Station, and Clovis Expansion Regulator Station).
This pipeline is a continuation of the Clovis Transmission Une that transports natural gas from EI
Paso Natural Gas Company's Intrastate pipeline system to New Mexico Gas Company's
Northeast Area distribution centers, and is not downstream of a distribution center. (See
Drawing #2, and Pictures 1,2&3)
5) The Northeast Distribution Mainline is an intrastate natural gas pipeline. The pipeline is a loop
line that can be used to: (a) transports natural gas from EI Paso Natural Gas Company's
interstate pipeline via NMGC's Clovis Transmission Une to the Tucumcari Townplant
distribution center without going to the Clovis Border Regulator Station, or (b) transport natural
gas to the Clovis Town plant distribution center via the Tucumcari Mainline. (See Drawing 1t4)
2

<<<PAGE 12>>>

15057974752 nmgco NMGCO 11:03:29a.m. 09-28-2009
6/6
6} The Portales Mainline Is an intrastate natural gas pipeline that transports natural gas from the
Clovis Transmission line, and Transwestern's interstate transmissIon line to distribution centers
(Portales Townplant, Grinder Regulator Station, Baxter Regulator Station, Midway Regulator
Station, and Cameo Regulator Station). Pressure on the ptpeline is regulated at 200 psigjust
downstream of the Transwestern interconnect at the Clovis Transmission line. There are no
service lines on the Portales Mainline and the pipeline runs approximately 20 miles to the
Portales Townplant distribution center.
If you have any questions or need further Information, please call me at (505) 490'()675.
Sincerely,
~ t1JJl.
JOa~ Johnson, A
xc: Mr. Richard l. Backes, Vice President - Technical Services
Gary Roybal, DOT Compliance Manager for NMGC
Rebecca Carter, Regulatory Project Manager
3

<<<PAGE 13>>>

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<<<PAGE 19>>>

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<<<PAGE 20>>>

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<<<PAGE 21>>>

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<<<PAGE 22>>>

New Mexico
GAS COMPANY
Thomas M. Domme
Vice President & General Counsel
505-697-3834 (direct)
505·250-1419 (eel!)
tOnl.ciomme(jJ'nmgco.com
September 25, 2009
OCT 0 1 2009
Jeff Wiese
U.S Department of Transportation
Pipeline & Hazardous Materials Safety Administration
East Building, 2nd Floor
1200 New Jersey Avenue, SE
Washington, DC 20590
A velino Gutierrez
NM Public Regulation Commission
P.o. Box 1269
Santa Fe, NM 87504-1269
Joe Johnson
Pipeline Safety Bureau
NM Public Regulation Commission
P.O. Box 1269
Santa Fe, NM 87504-1269
Re: September 15,2009 New Mexico PSB request for opinion/interpretation.
Gentlemen,
New Mexico Gas Company ("NMGC") is in receipt of a September 15, 2009 request for
opinion/interpretation ("Request") from Mr. Joe Johnson, Acting Bureau Chief of Pipeline
Safety for the State of New Mexico ("PSB"). A copy of the Request is attached for your
convenience .. The Request asks for an opinion/interpretation on whether six identified pipelines
operated by NMGC are transmission or distribution pipelines and provides an interpretation of
49 c.F.R. 192.3. Our initial review of the Request raises concerns and questions about the
procedural validity of the Request, and well as the scope and factual details of the Request, and
we will be preparing a detailed response to the Request. In short, in NMGC's view, the
interpretation of the regulation in the Request is incorrect in several respects, and fails to
recognize the provisions in the remainder of the definition as well as the history behind this
issue. NMGC anticipates providing its response within ten days.
By way of brief background, this issue has been the focus of many discussions and meetings in
New Mexico between representatives of PSB and .the gas utility since at least 1992. It was
NMGC's understanding that these discussions were ongoing. As recently as 2007, a settlement
discussion was held between PSB and the utility, and over the last two years additional
conversations were held between the former PSB Bureau Chief, Bruno Carrara, and NMGC.
NMGC anticipated and was told to anticipate a response from PSB directly to NMGC regarding
PSB's latest position in these ongoing discussions. NMGC was never informed and was not
aware that PSB was intending to submit the Request, and NMGC's input into the form of the
request was not sought. NMGC remains of the opinion that discussion in New Mexico would be
the more fruitful avenue for resolution and intends to approach PSB to attempt further
discussions on these issues.
P.O. Box 97500 * Albuquerque, NM 87199-7500 ., p: 888 NMGASCO • www.nmgco.com

<<<PAGE 23>>>

Jeff Wiese, et al.
September 25,2009
Page 2
As an aside, it is not clear, but it appears that the Request is being made under 49 C.F.R. 190.11
for informal guidance and interpretation. If so, then the Request is technically misdirected to the
Associate Administrator, and should be redirected or forwarded consistent with 190.11 (b) to the
Office of Pipeline Safety generally for an informal interpretation. Further, although not spelled
out in 190.l1(b), as indicated above, NMGC intends to respond to the Request to provide a fuller
and more detailed picture of the issue presented. To the extent leave is required to provide such
a response under 190.11 (b), NMGC seeks such leave.
Finally, because the Request could have far reaching implications throughout the State of New
Mexico, to other states, and even to other utilities, NMGC will be soliciting input from other gas
utilities and the American Gas Association on this issue and will either incorporate these
positions in its response, or solicit direct input by these entities .
• u"-.....n. Domme
Vice President and General Counsel
cc: Rick Backes
Gary Roybal
Rebecca Carter
P.O. Box 97500' Albuquerque, NM 87199-7500 p: 888 NMGASCO" www.nmgco.com

<<<PAGE 24>>>

New Mexico
GAS COMPANY
Thomas M. Domme
Vice President & General Counsel
505-697-3834 (direct)
505-250-1419 (cell)
tnrn.dommc(ai nmgco_col1l
OCT 132009
October 12,2009
VIA FEDERAL EXPRESS
Mr. Jeffrey Wiese
U.S Department of Transportation
Pipeline & Hazardous Materials Safety
Administration
East Building, 2nd Floor
1200 New Jersey Avenue, SE
Washington, DC 20590
Mr. A velino Gutierrez
NM Public Regulation Commission
P.O. Box 1269
Santa Fe, NM 87504-1269
Mr. Joe Johnson
Pipeline Safety Bureau
NM Public Regulation Commission
P.O. Box 1269
Santa Fe, NM 87504-1269
Re: New Mexico Gas Company's Position Concerning New Mexico
PSB September 15, 2009 Request for Opinion/Interpretation of
Certain Transmission and Distribution Pipelines
Gentlemen:
New Mexico Gas Company ("NMGC") is in receipt of correspondence dated September 15,
2009 from Joe M. Johnson, acting Bureau Chief of the New Mexico Pipeline Safety Bureau
("PSB"). As indicated in our initial correspondence to you on September 25, 2009, NMGC
submits this more detailed response to the PSB's September 15, 2009 letter in order to set forth
more facts and to provide NMGC's position with regard to these issues.
OPERATIONAL BACKGROUND:
NMGC is a local distribution company which provides service to approximately 500,000
customers throughout the State of New Mexico, and operates approximately 1502 miles of
transmission lines and 13060 miles of distribution lines. NMGC purchased these gas assets from
Public Service Company of New Mexico ("PNM") on January 30, 2009. At issue here are six
separate distribution lines, which PSB seeks to have redesignated as transmission lines.
Attached as Attachment A, is a map diagramming four of the lines in dispute: Tucumcari
mainline, Northeast distribution mainline, Cannon mainline, and Portales mainline ("Clovis Area
Lines"). Also shown on Attachment A is the Clovis mainline which is not part of this dispute.
Attached as Attachment B is a diagram depicting a representation of the other two lines in
P.O. Box 97500. Albuquerque, NM 87199-7500 • p: 888 NMGASCO • www.nmgco.com

<<<PAGE 25>>>

Wiese, et al.
October 12, 2009
Page 20f9
dispute, the Animas Power Plant line, and the Farmington Bluffview Power Plant line
("Farmington Area Lines").
Clovis Area Lines (Attachment A)
The five pipeline segments shown on Attachment A distribute gas to the eastern portion of
NMGC's service area. As indicated on the map, EI Paso Natural Gas ("EPNG") and
Transwestern Gas Company ("TWO') deliver gas to NMGC's system at two locations in this area,
the Texico Border Station ("Clovis City Gate") and the TW Border Station ("Portales City
Gate"). NMGC takes custody of the gas at these locations and delivers it to end-users. NMGC
considers the Clovis City Gate, and Portales City Gates as "distribution centers" for this service
area.
Clovis City Gate: EPNG delivers gas to the Clovis City Gate at a pressure of approximately 300
psig. The pressure is reduced at the EPNG Border Station, located in Texas, from approximately
790 psig to approximately 300 psig for delivery into the Clovis City Gate, located in New
Mexico.
Clovis ML: The Clovis ML, consisting of 8.38 miles of 8-inch steel pipeline and 8.28
miles of IO-inch steel pipe, delivers gas from the Clovis City Gate to the Clovis Border
Station. See Attachment C for a schematic of the Clovis Border Station. This segment of
pipeline is downstream of the Clovis City Gate, is already designated a transmission line
and is not subject to the request for interpretation contained in the PSB letter.
Tucumcari ML: The Tucumcari ML has an MAOP of 300 psig and is comprised of 46.6
miles of 6-inch steel pipe and 15.6 miles of 8-inch steel pipe. The Tucumcari ML
delivers gas to 20 service meters connected directly to the pipeline and to the community
of Tucumcari. This segment of pipeline is downstream of the Clovis City Gate.
Northeast Distribution ML: The Northeast Distribution ML has an MAOP of 300 psig
and is comprised of 15.9 miles of 4-inch steel pipe and 8.3 miles of 6-inch steel pipe.
The Northeast Distribution System is connected to the Clovis ML, east of the Clovis
Border Station and ties into the Tucumcari ML. This segment of pipeline delivers gas to
43 service meters connected directly to the pipeline. This segment of pipeline is
downstream of the Clovis City Gate.
Cannon ML: The Cannon ML has an MAOP of 300 psig and is comprised of 8.7 miles
of 6-inch steel pipe and 1.1 miles of 8-inch steel pipe. This segment of pipeline delivers
gas to 26 service meters that are directly connected to the pipeline and to Cannon Air
Force Base. This segment of pipeline is downstream of the Clovis City Gate.
Portales City Gate: TW delivers gas to the Portales City Gate at a pressure of approximately
1000 psig. The pressure is reduced to approximately 300 psig for delivery into the Clovis ML
and cut to 200 psig for delivery into the Portales ML. The Portales City Gate is the point where
NMGC takes custody of the gas for distribution to the end-user.
P.O. Box 97500. Albuquerque, NM 87199-7500 • p: 888 NMGASCO • www.nmgco.com

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Portales ML: The Portales ML has an MAOP of 200 psig and is comprised of 2.25 miles
of 5-inch steel pipe, 2.95 miles of 6-inch steel pipe and 6.7 miles of 8-inch steel pipe.
The Portales ML begins at the Portales City Gate and delivers gas to the community of
Portales.
Farmington Area Lines (Attachment B)
Blanco Hub and Carlton Regulator Station: NMGC takes custody and transfer of gas into its
system at the Blanco Hub. Gas is then transported through the Crouch Mesa Transmission Line
to the Ronald Regan Regulator Station where the pressure is reduced and is delivered to the
Bluffview ML. The Carlton Regulator Station comes off the Bluffview ML and drops the
pressure to the Animas ML and the Farmington High Pressure Distribution Line. Custody of the
gas entering this system is at the Blanco Hub.
Farmington Power Plant Pipeline (Bluffview ML): The Bluffview ML has an MAOP of
770 psig and is comprised of approximately 3.77 miles of 8-inch steel pipe. NMGC takes
custody of gas at the Blanco Hub, which ties into the Crouch Mesa Transmission line.
The Bluffview ML is connected to the Crouch Mesa Transmission Line, which has an
MAOP of 1220 psig. The pressure is reduced to 705 psig at the Ronald Reagan
Regulator Station before entering the Bluffview pipeline. This segment of pipeline
delivers gas to Animas ML, Farmington High Pressure Distribution Line and to the
Farmington Power Plant. This line is downstream of a distribution center (Blanco Hub),
is not dedicated for the sole use of the Farmington Power Plant, and is available to deliver
gas to other end-users.
Animas ML: The Animas ML has an MAOP of 600 psig and is comprised of
approximately 0.56 miles of 6-inch steel pipe. The Animas ML is connected to the
Bluffview ML. The pressure is reduced from 705 psig to 445 psig at the Carlton
Regulator Station before entering the Animas pipeline. This segment of pipeline delivers
gas to the Animas Power Plant. Additionally, gas is delivered into the Farmington high
Pressure Distribution Line at the Carlton Regulator Station at a pressure of 200 psig.
This line is downstream of the Blanco Hub distribution center and the Carlton Regulator
Station distribution center, is not dedicated for the sole use of the Animas Power Plant
and is available to deliver gas to other end-users.
RELEVANT CHRONOLOGY REGARDING CLASSIFICATION ISSUES
By way of background, NMGC sets forth this chronology of events which are relevant to
consideration of these issues:
• August 18-20, 1992 - Mr. Joe Johnson, Pipeline Safety Inspector, performs an annual
compliance inspection for the Clovis and Portales, N.M. townplants.
P.O. Box 97500. Albuquerque, NM 87199-7500 • p: 888 NMGASCO • www.nmgco.com

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• October 9, 1992 - PSB issues a Notice of Probable Violation ("NPV"), attached as
Attachment D, in which it cited Gas Company of New Mexico, a division of Public
Service Company of New Mexico ("Gas Company"), and NMGC's predecessor,
regarding the Clovis ML and Tucumcari ML, citing non-compliance with § 192.705,
Transmission Lines; Patrolling and § 192.706 (B), Transmission Lines: Leakage Surveys,
for not operating the Clovis ML and the Tucumcari ML as transmission lines.
• November 12, 1992 - The Gas Company responds to PSB acknowledging that the Clovis
ML is operated at above 20% SMYS and, therefore, is a transmission line. The Gas
Company, however, did not agree that the Tucumcari ML was a transmission line and
submitted the following response:
"The Clovisffucumcari mainline which is a 127 mile segment of
pipeline has historically been designated as distribution pipeline using
the definition that it did not transport gas from a gathering line or
storage facility to a distribution center or storage facility. Designated
as such, annual patrol and leakage survey was performed in
accordance with Sections 192.721 and 192.723 respectively.
GCNM has reviewed the System Certifications for the
Clovisffucumcari mainlines and are in agreement that the Clovis
pipeline segment which is operating at above 20% SMYS shall be
patrolled and leak surveyed utilizing the Section 192.705 and
192. 706(B) as applicable to this segment. This segment of pipeline is
scheduled to be patrolled and leak surveyed between November 16
thru November 30, 1992 and in the future shall be patrolled on a
quarterly basis and leak surveyed annually."
• January 21, 1993 - Albino O. Zuniga, P.E. and Pipeline Safety Engineer and Rey S.
Medina, Director acknowledged and agreed with Gas Company of New Mexico's
conclusion that the Clovis ML was a transmission line because it operated above 20%
SMYS. They responded as follows:
"In regard to the Clovisffucumcari area pipelines and the probable
violations with Section 192.705 and Section 192.706(B) cited in the same
letter, we agree with your conclusion that the Clovis pipeline segment
operating above 20% SMYS is a transmission line."
• Between 1992 and 2007, PSB conducted several Compliance Inspections regarding the
operating status of the Tucumcari ML, Portales ML, Cannon ML, Northeastern
Distribution ML and Clovis ML. Except for the Compliance Inspection conducted in
2007, all other Compliance Inspections since 1992 accepted the operating status (as
distribution mains) of the Tucumcari ML, Portales ML, Cannon ML and the Northeast
ML. It should be noted that the same inspector that conducted the 1992 Compliance
Inspection and several subsequent Compliance Inspections is also the same PSB
P.O. Box 97500" Albuquerque, NM 87199-7500 ., p: 888 NMGASCO .. www.nmgco.com

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Inspector that conducted the 2007 Specialized Inspection. PSB has not identified nor
addressed any safety concerns or considerations, changes in regulation, policy or
conditions of operations that warrant a change in operating status for these pipelines.
However, PSB apparently lifted the violation for the Tucumcari ML since the issue was
not mentioned as a NPV for the next 14 years.
• May 29-30, 2007 - Joe Johnson, PSB Inspector, performs a Specialized Audit of the
Tucumcari ML.
• July 2, 2007 - Mr. Bruno Carrara, P.E., PSB Bureau ChieflPipeline Safety Engineer,
issues a NPV. PSB cites the following probable violation:
"Item I -§192.706 Transmission lines: Leakage surveys. Leakage surveys
of a transmission line must be conducted at intervals not exceeding 15
months, but at least once each calendar year.
The Tucumcari Mainline is a transmission line as defined in Part 192.
Records reviewed indicate that the Tucumcari Mainline was last surveyed
for leakage on December 10,2002 and November 17,2003."
• August 3, 2007 -PNM responds to the NPV and disputes the probable violation. PNM
asserts that the Tucumcari ML is a distribution line and is not a transmission line as
defined in §49 CFR 192.3.
• October 4, 2007 - Bruno Carrara, P.E., PSB Bureau ChieflPipeline Safety Engineer,
responds that on September 17, 2007, Mr. Joe Johnson met with certain PNM personnel
in the Clovis area and asserted that the Tucumcari ML was not downstream of the
"distribution center". Additionally, Mr. Johnson asserted that the Cannon ML, Portales
ML and the Northeast Distribution ML were also transmission lines.
• November 9, 2007 - In accordance with PSB's correspondence dated October 4, 2007,
PNM scheduled and conducted a compliance/settlement conference with PSB. PSB has
had no further written correspondence with PNM or its successor, NMGC.
• June 12, 2008 - At the request of PSB, PNM provides operations information regarding
the Tucumcari ML, Cannon ML, Portales ML and the Northeast Distribution ML.
• September 10-11, 2008 - Joe Johnson, PSB Inspector, conducts a Specialized
Compliance Inspection of the Farmington, NM townplant.
• October 2, 2008 - Bruno Carrara, P.E., PSB Bureau ChieflPipeline Safety Engineer,
issues a NPV for the Farmington townplant. PSB cites non-compliance with § 192.705,
Transmission Lines; Patrolling and § 192
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