DEUWI GD 2022

NOTICE: This report is required by 49 CFR Part 191. Failure to report may result in a civil penalty OMB No.2137-0629 as OMB NO:2137-0629
provided in 49 USC 60122. EXPIRATION DATE: 5/31/2024
Initial Date 03/13/2023
Submitted:
U.S.Department of Transportation ANNUAL REPORT FOR CALENDAR
Pipeline and Hazardous Materials
YEAR 2022 Type
ert Submission INITIAL
Safety Administration GAS DISTRIBUTION SYSTEM
Date Submitted:
A federal agency may not conduct or sponsor,and a person is not required to respond to,nor shall a person be subject to a penalty for failure to comply with a collection of
information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control
Number for this information collection is 2137-0629. Public reporting for this collection of information is estimated to be approximately 16 hours per response,including the
time for reviewing instructions,gathering the data needed,and completing and reviewing the collection of information. All responses to this collection of information are
mandatory. Send comments regarding this burden estimate or any other aspect of this collection of information,including suggestions for reducing this burden to:Information
Collection Clearance Officer,PHMSA,Office of Pipeline Safety(PHP-30)1200 New Jersey Avenue,SE,Washington,D.C.20590.
Important. Please read the separate instructions for completing this form before you begin. They clarify the information requested and provide specific
examples. If you do not have a copy of the instructions,you can obtain one from the PHMSA Pipeline Safety Community Web Page at
http://www.phmsa.dot.gov/pipeline/library/forms.
PART A-OPERATOR INFORMATION (DOT use only) 20230987-51556
1.Name of Operator DOMINION ENERGY UTAH/WYOMING/IDAHO
2.LOCATION OF OFFICE(WHERE ADDITIONAL INFORMATION MAY BE OBTAINED)
2a.Street Address 333 SOUTH STATE STREET P.O.BOX 45360
2b.City and County SALT LAKE CITY
2c.State UT
2d.Zip Code 84145
3.OPERATOR'S 5 DIGIT IDENTIFICATION NUMBER 12876
4.HEADQUARTERS NAME&ADDRESS
4a.Street Address 333 SOUTH STATE STREET P.O.BOX 45360
4b.City and County SALT LAKE CITY
4c.State UT
4d.Zip Code 84111
5.STATE IN WHICH SYSTEM OPERATES ID
6.THIS REPORT PERTAINS TO THE FOLLOWING COMMODITY GROUP(Select Commodity Group based on the predominant gas carried and
complete the report for that Commodity Group.File a separate report for each Commodity Group included in this OPID.)
Natural Gas
7.THIS REPORT PERTAINS TO THE FOLLOWING TYPE OF OPERATOR(Select Type of Operator based on the structure of the company
included in this OP/D for which this report is being submitted.):
Investor Owned
PART B-SYSTEM DESCRIPTION
1.GENERAL
STEEL
UNPROTECTED CATHODICALLY PLASTIC CAST/ DUCTILE COPPER OTHER RECONDITION SYSTEM
PROTECTED WROUGHT IRON ED TOTAL
IRON CAST IRON
BARE COATED BARE COATED
MILES OF 0 0 0 1.557 53.313 0 0 0 0 0 54.87
MAIN
NO.OF 0 0 0 1 2471 0 0 0 0 0 2472
SERVICES
Form PHMSA F 7100.1-1 (rev 5-2021) Reproduction of this form is permitted Pg. 1 of 4

NOTICE: This report is required by 49 CFR Part 191. Failure to report may result in a civil penalty OMB No.2137-0629 as OMB NO:2137-0629
provided in 49 USC 60122. EXPIRATION DATE: 5/31/2024
2.MILES OF MAINS IN SYSTEM AT END OF YEAR
MATERIAL UNKNOWN 2"OR LESS OVER 2" OVER 4" OVER 8" OVER 12" SYSTEM TOTALS
THRU 4" THRU 8" THRU 12"
STEEL 0 0.055 0.026 1.476 0 0 1.557
DUCTILE IRON 0 0 0 0 0 0 0
COPPER 0 0 0 0 0 0 0
CAST/WROUGHT 0 0 0 0 0 0 0
IRON
PLASTIC PVC 0 0 0 0 0 0 0
PLASTIC PE 0 37.437 12.995 2.881 0 0 53.313
PLASTIC ABS 0 0 0 0 0 0 0
PLASTIC OTHER 0 0 0 0 0 0 0
OTHER 0 0 0 0 0 0 0
RECONDITIONED 0 0 0 0 0 0 0
CASTIRON
TOTAL 0 37.492 13.021 4.357 0 0 54.87
Describe Other Material:
3.NUMBER OF SERVICES IN SYSTEM AT END OF YEAR AVERAGE SERVICE LENGTH:79
MATERIAL UNKNOWN 1"OR LESS OVER 1" OVER 2" OVER 4" OVER 8" SYSTEM TOTALS
THRU 2" THRU 4" THRU 8"
STEEL 0 1 0 0 0 0 1
DUCTILE IRON 0 0 0 0 0 0 0
COOPER 0 0 0 0 0 0 0
CAST/WROUGHT 0 0 0 0 0 0 0
IRON
PLASTIC PVC 0 0 0 0 0 0 0
PLASTIC PE 0 2401 68 2 0 0 2471
PLASTIC ABS 0 0 0 0 0 0 0
PLASTIC OTHER 0 0 0 0 0 0 0
OTHER 0 0 0 0 0 0 0
RECONDITIONED 0 0 0 0 0 0 0
CASTIRON
TOTAL 0 2402 68 2 0 0 2472
Describe Other Material:
4.MILES OF MAIN AND NUMBER OF SERVICES BY DECADE OF INSTALLATION
UNKNOWN PRE-1940 1940-1949 1950-1959 1960-1969 1970-1979 1980-1989 1990-1999 2000-2009 2010-2019 2020-2029 TOTAL
MILES OF 0 0 0 0 0 0 0.049 35.299 14.955 2.308 2.26 54.871
MAIN
NUMBER
OF 0 0 0 0 0 0 0 1645 365 299 163 2472
SERVICES
PART C-TOTAL LEAKS AND HAZARDOUS LEAKS ELIMINATED/REPAIRED DURING THE YEAR
Form PHMSA F 7100.1-1 (rev 5-2021) Reproduction of this form is permitted Pg. 2 of 4

NOTICE: This report is required by 49 CFR Part 191. Failure to report may result in a civil penalty OMB No.2137-0629 as OMB NO:2137-0629
provided in 49 USC 60122. EXPIRATION DATE: 5/31/2024
MAINS SERVICES
CAUSE OF LEAK
TOTAL HAZARDOUS TOTAL HAZARDOUS
CORROSION FAILURE 0 0 1 0
NATURAL FORCE DAMAGE 0 0 0 0
EXCAVATION DAMAGE 0 0 1 1
OTHER OUTSIDE FORCE DAMAGE 0 0 0 0
PIPE,WELD OR JOINT FAILURE 0 0 1 1
EQUIPMENT FAILURE 0 0 1 1
INCORRECT OPERATIONS 0 0 0 0
OTHER CAUSE 0 0 0 0
NUMBER OF KNOWN SYSTEM LEAKS AT END OF YEAR SCHEDULED FOR REPAIR:0
NUMBER OF HAZARDOUS LEAKS INVOLVING A MECHANICAL JOINT FAILURE: 0
PART D-EXCAVATION DAMAGE PART E—EXCESS FLOW VALUE(EFV)AND SERVICE VALUE DATA
1.TOTAL NUMBER OF EXCAVATION DAMAGES BY APPARENT Total Number Of Services with EFV Installed During Year :33
ROOT CAUSE: 1
a. One-Call Notification Practices Not Sufficient: 1 Estimated Number Of Services with EFV In the System At End Of Year:494
*Total Number of Manual Service Line Shut-off Valves Installed During Year:
b. Locating Practices Not Sufficient: 0 0
c. Excavation Practices Not Sufficient: 0
d. Other: 0
*Estimated Number of Services with Manual Service Line Shut-off Valves
Installed in the System at End of Year: 1
*These questions were added to the report in 2017.
2. NUBMER OF EXCAVATION TICKETS 518
PART F-LEAKS ON FEDERAL LAND PART G—PERCENT OF UNACCOUNTED FOR GAS 7t
TOTAL NUMBER OF LEAKS ON FEDERAL LAND REPAIRED OR
SCHEDULED TO REPAIR:0 UNACCOUNTED FOR GAS AS A PERCENT OF TOTAL CONSUMPTION
FOR THE 12 MONTHS ENDING JUNE 30 OF THE REPORTING YEAR.
[(PURCHASED GAS+PRODUCED GAS)MINUS(CUSTOMER USE+
COMPANY USE+APPROPRIATE ADJUSTMENTS)]DIVIDED BY
(CUSTOMER USE+COMPANY USE+APPROPRIATE ADJUSTMENTS)
TIMES 100 EQUALS PERCENT UNACCOUNTED FOR.
FOR YEAR ENDING 6/30: 0.74%
Form PHMSA F 7100.1-1 (rev 5-2021) Reproduction of this form is permitted Pg.3 of 4

NOTICE: This report is required by 49 CFR Part 191. Failure to report may result in a civil penalty OMB No.2137-0629 as OMB NO:2137-0629
provided in 49 USC 60122. EXPIRATION DATE: 5/31/2024
FORMATION
7of-
PARTrcent of Unaccounted for Gas is a system wide measurement(Idaho,Utah,Colorado,and Wyoming).
te the tables in part B services counts are prioritized based on material. Example,a 100 ft single service line,running from the main to
ucted of two materials,50 ft plastic and 50 ft steel,is reported as one 50 ft plastic service and one 50 ft steel service,for a service line
ervices count,counting each mixed material services as one is:2373
PARTI-PREPARER
Sarah Silcox Engineer 2 18012099657
(Preparer's Name and Title) (Area Code and Telephone Number)
[e-mail] [phone]
(Preparer's email address) (Area Code and Facsimile Number)
Form PHMSA F 7100.1-1 (rev 5-2021) Reproduction of this form is permitted Pg. 4 of 4