# Home Owner — Pipeline Safety Interpretation

**Citation:** PI-17-0016  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2017-12-12

PI-17-0016 response to Home Owner concerning 192.903.

## Document text

<<<PAGE 1>>>

U.S. Department
ofTransportation
Pipeline and Hazardous Materials
Safety Administration
1200 New Jersey Avenue SE
Washington DC 20590
D EC 0 7 2017
Mr. William F. Limpert
4102B Garfield Road
Smithsburg, MD 21783
Dear Mr. Limpert:
In an email to the Pipeline and Hazardous Materials Safety Administration (PHMSA) dated
June 7, 2017, you requested an interpretation of 49 CFR Part 192. You specifically requested an
interpretation of high consequence areas under the definition of§ 192.903.
You described your request as follows.
I am seeking information about the determination for high consequence areas for natural
gas pipelines.
My wife and I and a number of neighbors live in Little Valley, in Bath County, Virginia.
This is a narrow and very steep valley with one road that ends at the upper end of the
valley. This is the only road in or out of the valley. The Atlantic Coast Pipeline (ACP) is
proposed to be built just below our home and other homes in the valley. These homes
would be in the blast zone and evacuation zone of the pipeline. In a pipeline emergency,
our only egress from the valley would be blocked by the pipeline. The road above us
ends in the evacuation zone of this proposed pipeline, thus preventing us from escaping
from the evacuation zone. Due to the very steep slopes and remote location, rescue
would be impossible as well.
The ACP has stated that we would be rescued by cutting in a new road in a pipeline
emergency. This is false, because the road would have to be constructed for many miles
through high, steep, wooded mountains, and across private land in a matter of minutes.
The ACP has also stated that we would be rescued by airlifting us out. This is also false.
There are no helicopters within 40 miles of our location, there are no designated landing
locations in Little Valley, any landing location would be difficult due to the steep terrain,
and a helicopter may not be able to land in the evacuation zone of the pipeline due to fire
and heat issues. This would also have to be accomplished in a matter of minutes.
I believe that we must be considered a high consequence area, and the operator must
develop an integrity management plan under your regulations as follows.
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations (49 CFR
Parts 190-199) in the fonn of interpretation letters. These letters reflect the agency's current application of the regulations to the specific facts
presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and are provided to
help the public understand how to comply with the regulations.

<<<PAGE 2>>>

2
PHMSA regulations as shown in 49 CFR Part 192 require the following:
192.903(1)(iv) and (2)(ii) defines a high consequence area as an area within the potential
impact circle of a pipeline containing an identified site.
192.903(4)(c) defines an identified site as a facility occupied by persons who would be
difficult to evacuate.
192.905 states that an operator must identify high consequence areas.
192.907 states that an operator must develop an integrity management plan for high
consequence areas that meets the requirements of 192.911.
I should also mention that a neighbor in the same situation as my wife and I, who would
also be trapped, has mobility issues. He is elderly, had half of a lung previously removed,
has chronic obstructive pulmonary disease, can only walk about 50 feet at a time, and his
driver's license is being revoked. So, he meets the criteria in your regulations for a
mobility impaired person, although I believe that is not necessary on its own merit, since
we all meet the criteria regarding evacuation issues.
Please advise me on your interpretation of the regulations covering this matter as soon as
possible.
In addition, in a September 19, 201 7, email, you provided figures, sketches and photographs of
the location.
Under Federal pipeline safety regulations, an operator must have an integrity management
program for each pipeline located in a "high consequence area" (HCA). An HCA is either (1)
any Class 3 or Class 4 location, and an identified site; or (2) 20 or more dwellings for human
occupancy within the potential impact radius or an identified site(§ 192.903). An HCA also
includes Class 1 or Class 2 locations if they contain an "identified site," which is further defined
to include places frequently populated, such as recreational facilities, community centers and
hospitals(§ 192.903). It is the responsibility of the operator of a pipeline to identify high
consequence areas. 49 CFR § 192.905(a).
Based on the information that you have provided, your neighborhood is located in a Class 1
location because it has "10 or fewer buildings intended for human occupancy."§ 192.5(b)(ii).
Therefore, the neighborhood is not an HCA unless there is an identified site. An identified site is
specifically defined as follows:
(a) An outside area or open structure that is occupied by twenty
(20) or more persons on at least 50 days in any twelve (12)-month
period. (The days need not be consecutive.) Examples include but
are not limited to, beaches, playgrounds, recreational facilities,
camping grounds, outdoor theaters, stadiums, recreational areas
near a body of water, or areas outside a rural building such as a
religious facility; or
(b) A building that is occupied by twenty (20) or more persons on
at least five (5) days a week for ten (10) weeks in any twelve (12)-
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations
(49 CFR Parts 190-199) in the fonn of interpretation letters. These letters reflect the agency's current application of the regulations to the
specific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and
are provided to help the public understand how to comply with the regulations.

<<<PAGE 3>>>

3
month period. (The days and weeks need not be consecutive.)
Examples include, but are not limited to, religious facilities, office
buildings, community centers, general stores, 4-H facilities, or
roller skating rinks; or
( c) A facility occupied by persons who are confined, are of
impaired mobility, or would be difficult to evacuate. Examples
include but are not limited to hospitals, prisons, schools, day-care
facilities, retirement facilities or assisted-living facilities.
§ 192.903, Identified site.
In the August 6, 2002, in its Rule, "Pipeline Safety: High Consequences Areas for Gas
Transmission Pipelines" (67 FR 50824), PHMSA revised the definition of"high consequence
area." The Preamble for the Final Rule provided additional clarity on how to correctly designate
an "identified site." The Preamble states that:
An identified site is a building that can be identified through any
of the following means-it has a sign; it is licensed or registered
by a federal, state or local agency; it is known to public safety
officials; or it appears on a list or map that is available through a
federal, state or local agency, or through a publicly available or
commercially available database. This revision should alleviate
the concern that operators will be required to identity a family
home that has elderly or disabled persons, or daycare age
children.
67 FR 50824 at 50828.
While an identified site is not specifically limited by "a minimum number of occupants," this
definition necessarily excludes private homes, and instead focuses on "facilities" such as
retirement communities with multiple residents.
Based on the information that you provided, the area is not an HCA. The area is a Class 1
location, and it does not include an identified site. You have not identified any specific outside
area or open structure that is occupied by twenty (20) or more persons on at least 50 days in any
twelve (12)-month period, a building that is occupied by twenty (20) or more persons on at least
five (5) days a week for ten (10) weeks in any twelve (12)-month period, or a facility occupied
by persons who are confined, are of impaired mobility, or would be difficult to evacuate. As
explained in the August 6, 2002 Preamble, your neighbor's home does not meet the definition of
an identified site for "a facility occupied by persons who are confined, are of impaired mobility,
or would be difficult to evacuate," regardless of his individual mobility issues. Examples of such
an identified site are, among other things, hospitals, retirement facilities and assisted-living
facilities.
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations
(49 CFR Parts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the
specific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and
are provided to help the public understand how to comply with the regulations.

<<<PAGE 4>>>

4
Although the area is not an HCA, any gas pipeline constructed in your area must meet all of the
applicable pipeline safety regulations in 49 CFR Parts 192, including standards for pipeline
design, construction, operation, and maintenance. If we can be of further assistance, please
contact Tewabe Asebe at 202-366-5523.
ae
Director, Office of Standards
and Rulemaking
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations
(49 CFR Parts 190-199) in the fonn of interpretation letters. These letters reflect the agency's current application of the regulations to the
specific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and
are provided to help the public understand how to comply with the regulations.

<<<PAGE 5>>>

Office of Pipeline Safety (PHP-30)
PHMSA
U.S. Department of Transportation
1200 New Jersey Avenue SE
Washington, DC 20590-0001
Re: Determination of High Consequence Area for Natural Gas Pipeline
June 7, 2017
To Whom It May Concern:
I am seeking information about the determination for high consequence areas for natural gas
pipelines.
My wife and I and a number of neighbors live in Little Valley, in Bath County, Virginia. This is
a narrow and very steep valley with one road that ends at the upper end of the valley. This is the
only road in or out of the valley. The Atlantic Coast Pipeline (ACP) is proposed to be built just
below our home and other homes in the valley. These homes would be in the blast zone and
evacuation zone of the pipeline. In a pipeline emergency our only egress from the valley would
be blocked by the pipeline. The road above us ends in the evacuation zone of this proposed
pipeline, thus preventing us from escaping from the evacuation zone. Due to the very steep
slopes and remote location rescue would be impossible as well.
The ACP has stated that we would be rescued by cutting in a new road in a pipeline emergency.
This is false, because the road would have to be constructed for many miles through high, steep,
wooded mountains, and across private land in a matter of minutes. The ACP has also stated that
we would be rescued by airlifting us out. This is also false. There are no helicopters within 40
miles of our location, there are no designated landing locations in Little Valley, any landing
location would be difficult due to the steep terrain, and a helicopter may not be able to land in the
evacuation zone of the pipeline due to fire and heat issues. This would also have to be
accomplished in a matter of minutes.
I believe that we must be considered a high consequence area, and the operator must develop an
integrity management plan under your regulations as follows.
PHMSA regulations as shown in 49 CFR Part 192 require the following:
192.903(1)(iv)and (2)(ii) defines a high consequence area as an area within the potential impact
circle of a pipeline containing an identified site.
192.903(4)(c) defines an identified site as a facility occupied by persons who would be difficult
to evacuate.
192.905 states that an operator must identify high consequence areas.
192.907 states that an operator must develop an integrity management plan for high consequence
areas that meets the requirements of 192.911.

<<<PAGE 6>>>

I should also mention that a neighbor in the same situation as my wife and I, who would also be
trapped, has mobility issues. He is elderly, had half of a lung previously removed, has chronic
obstructive pulmonary disease, can only walk about 50 feet at a time, and his driver’s license is
being revoked. So he meets the criteria in your regulations for a mobility impaired person,
although I believe that is not necessary on its own merit, since we all meet the criteria regarding
evacuation issues.
Please advise me on your interpretation of the regulations covering this matter as soon as
possible.
The Federal Energy Regulatory Commission (FERC) draft environmental impact statement for
this project does not include us in a high consequence area, despite my ongoing arguments to the
contrary. FERC will be issuing a final environmental impact statement in the near future and the
high consequence area designation should be included in that document.
Thank you for your prompt response.
Sincerely,
William F. Limpert
wflimpert@gmail.com
4102B Garfield Road
Smithsburg, MD 21783
301-416-0571
540-839-3202

<<<PAGE 7>>>

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JPG 9976

<<<PAGE 8>>>

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JPG 9978

<<<PAGE 9>>>

Bolar Spring Topo Map in Highland County Virginia
proposed
pipeline
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694
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Map provided by TopoZone.com
Figuo 4

<<<PAGE 10>>>

Photos to USFS
1) 9686 - Slide on our property 34 inches deep x 9 feet 6 inches wide x 6 feet 5 inches long.
2) 9687 - Slide on our property 4 foot 10 inches deep x 14 feet wide x 15 feet long.

<<<PAGE 11>>>

Photos to USFS
3) 9690 - 3 large slides on our property estimated at (1) 4 feet deep x 8 feet wide x 12
feet long (2) 8 feet deep x 30 feet wide x 30 feet long (3) 3 feet deep x 30 feet wide x
30 feet long-These slide dimensions were estimated due to safety concerns.
4) 9694 - Slide on bank of Little Valley Run estimated as 5 feet deep x 40 feet wide x
40 feet long with 3 foot diameter tree uprooted - 300 feet upstream of proposed
crossing.

<<<PAGE 12>>>

Photos to USFS
The next six pictures shows a large landslide on the east side of Little Mountain within
several hundred feet of the proposed pipeline.
5) 9827 - Near bottom of slide.
6) 9829 - Further up slide.

<<<PAGE 13>>>

Photos to USFS
7) 9833 - Further up slide.
8) 9838 - Standing above slide.

<<<PAGE 14>>>

Photos to USFS
9) 9846 - Near top of slide.
10) 9847 - Standing above slide.

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/pipeline/interpretations/56676/limpert-pi-17-0016-12-07-2017-part-192903.pdf>
- Source ID: `phmsa`
- SHA-256: `460e7da862562081dccf231fc0e244018aa43348ce72a5fc8f52a6f076ad38d9`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T09:31:05.039Z
- Document slug: `phmsa-interpretation-pi-17-0016`

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