Annual report summary

GD, GTG programs reported

Operating in PA, MD
2024
Total regulated miles
668
across reported programs
Service connections
35k
latest reported total
LNG facilities (if any)
—
facilities reported
Program Miles Services State Year
Gas Distribution 668 35k PA 2024
Gas Transmission & Gathering 0 — MD 2024

Miles by installation service by decade.

Gas Distribution
120 mi peak 668 total
Pre-1940
7
1940–1949
4
1950–1959
27
1960–1969
71
1970–1979
50
1980–1989
90
1990–1999
106
2000–2009
98
2010–2019
120
2020–2029
95
Unknown
1
Gas Transmission & Gathering
5 mi peak 5 total
Pre-1940
0
1940–1949
0
1950–1959
0
1960–1969
5
1970–1979
0
1980–1989
0
1990–1999
0
2000–2009
0
2010–2019
0
2020–2029
0
Unknown
0
Reference
Operator name COLUMBIA GAS OF MARYLAND INC
Primary ID 2588
Programs GD, GTG
Contact details
Preparer name B***n P****l
Preparer title Integrity Management Engineer
Preparer phone (614) 619-0715
Preparer email b*****l@n******e.c*m
Preparer fax (000) 000-0000
Preparer address —
Report submission type INITIAL
Report date 2025-03-12T00:00:00
Filing date 2025-03-12T00:00:00
Additional information —
Form revision 7100.1-1 (Rev. 06-2023)
Company official name —
Company official title —
Company official phone —
Company official email —
Company official fax —
Emergency contact name —
Emergency contact phone —
Emergency contact email —
Section 6 — Flattened data preview
Key Value
annuals.gd.miles 668.4
annuals.gd.report_year 2024
annuals.gd.services 35109.0
annuals.gd.source_count 1
annuals.gd.state PA
annuals.gd.year 2024
annuals.gtg.miles 0.0
annuals.gtg.report_year 2024
annuals.gtg.source_count 1
annuals.gtg.state MD
annuals.gtg.year 2024
annuals.raw.gd.COMMODITY Natural Gas
annuals.raw.gd.DATAFILE_AS_OF 12/1/2025
annuals.raw.gd.OFFICE_ADDRESS_STATE PA
annuals.raw.gd.OPERATOR_ID 2588.0
annuals.raw.gd.OPERATOR_NAME COLUMBIA GAS OF MARYLAND INC
annuals.raw.gd.OPERATOR_TYPE Investor Owned
annuals.raw.gd.REPORT_NUMBER 20250977.0
annuals.raw.gd.REPORT_YEAR 2024.0
annuals.raw.gd.SUPPLEMENTAL_NUMBER 71941.0
annuals.raw.gd.created_at 2025-12-05 14:43:49.529220
annuals.raw.gd.report_data.AVERAGE_LENGTH 100.0
annuals.raw.gd.report_data.FED_LAND_LEAKS_REPAIRED 0.0
annuals.raw.gd.report_data.FILING_DATE 2025-03-12T00:00:00
annuals.raw.gd.report_data.FORM_REV 7100.1-1 (Rev. 06-2023)

1443 additional key/value pairs available.

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