5900-99 Annual Report - Distribution Segment

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Overview

Partner Info and ToC
Equipment Leaks
Mains
Services
Additional Activities
references

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Sheet 1: Partner Info and ToC

Natural Gas STAR Annual Report - Distribution Segment			Distribution
FORM VERSION: REPORTING SEASON 2021 (for activities completed in 2020)			OMB Control No. 2060-0722 Approval expires XX/XX/202X EPA Form No. 5900-99
RS2021DISTRv1
Partner Name			0
Reporting Year	2020
Use the Table of Contents below to navigate to the different tabs of the form. You can use column B to indicate if you reported data on a specific tab.
Distribution Emission Sources	Data Reported	Information
Equipment Leaks	No	Directed inspection and maintenance at gate stations and surface facilities
Mains	No	Replacement of Cast Iron (CI) and Unprotected Steel (UPS) Mains with Plastic and Protected Steel, or rehabilitation of CI & UPS with plastic liners/inserts
Services	No	Replacement of Cast Iron (CI) and Unprotected Steel (UPS) Services with Plastic and Protected Steel, or rehabilitation of CI & UPS with plastic liners/inserts
Additional Distribution Activities	No	Use this tab to report all other methane reductions in the Distribution segment. You will be able to select the technology/practice used from the list of Natural Gas STAR Partner Reported Opportunities. If the activity you are reporting is not included in the list, please contact EPA at GasSTAR@epa.gov
Update Partner Information (If applicable)
New Partner Name
This collection of information is approved by OMB under the Paperwork Reduction Act, 44 U.S.C. 3501 et seq. (OMB Control No. 2060-0328). Responses to this collection of information are voluntary 42 USC 7403(g). An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB control number. The public reporting and recordkeeping burden for this collection of information is estimated to range from 20 to 51 hours per response. Send comments on the Agency’s need for this information, the accuracy of the provided burden estimates and any suggested methods for minimizing respondent burden to the Regulatory Support Division Director, U.S. Environmental Protection Agency (2821T), 1200 Pennsylvania Ave., NW, Washington, D.C. 20460. Include the OMB control number in any correspondence. Do not send the completed form to this address.

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Sheet 2: Equipment Leaks

Equipment Leaks							Return to Table of Contents
Directed inspection and maintenance at gate stations and surface facilities
Year	Total Number of Surveys Conducted	Total Number of Leaks Found	Total Number of Leaks Repaired	Calculation Method: Default or Other?	Calculate Reductions Using Default Values		Other Calculation Method		Provide additional comments or detail about how your company implemented this BMP
					Total Number of Facilities at Which Leaks Repaired	Calculated Total Methane Emission Reduction based on default values {[Total Number of Facilities at Which Leaks Repaired]x[1,700 Average Annual Leak Rate per Facility at 70% Efficiency]}	Total Methane Emission Reduction Based on Actual Field Measurement or Other Assumptions (Mcf/yr)	Explain Reduction Calculation Used

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Sheet 3: Mains

Distribution Mains					Return to Table of Contents
Replacement of Cast Iron (CI) and Unprotected Steel (UPS) Mains with Plastic and Protected Steel, or rehabilitation of CI & UPS with plastic liners/inserts
Year	Cast Iron Mains - Miles			Unprotected Steel Mains - Miles			Calculated Total Methane Emission Reductions (Mcf/yr)	Provide additional comments or detail about how your company implemented this BMP
	Cast iron replaced with plastic	Cast iron replaced with protected steel	Cast iron rehabilitated with plastic liners	Unprotected steel replaced with plastic	Unprotected steel cathodically protected or replaced with protected steel	Unprotected steel rehabilitated with plastic liners
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Sheet 4: Services

Distribution Services						Return to Table of Contents
Replacement of Cast Iron (CI) and Unprotected Steel (UPS) Services with Plastic and Protected Steel, or rehabilitation of CI & UPS with plastic liners/inserts
Year	Cast Iron Services - Count				Unprotected Steel Services - Count				Calculated Total Methane Emission Reductions (Mcf/yr)	Provide additional comments or detail about how your company implemented this BMP
	Cast iron replaced with plastic	Cast iron replaced with protected steel	Cast iron replaced with copper	Cast iron reconditioned with plastic liners	Unprotected steel replaced with plastic	Unprotected steel replaced with protected steel	Unprotected steel replaced with copper	Unprotected steel reconditioned with plastic liners
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Sheet 5: Additional Activities

Additional Distribution Activities					Return to Table of Contents
Start Year	Select the Activity	New or Ongoing?	Eligible Sunset Years for this Activity	Automatically calculate ongoing reductions (if Sunset Years >1)?	End Year	Total Methane Emission Reduction (Mcf/yr)	Basis for Emission Reduction Estimate	Explain Reduction Calculation Used	Describe how your company implemented this activity (e.g., number of units installed or other activities conducted)

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Sheet 6: references

This sheet summarizes values used in calculations in this workbook. If you have questions on any of the values used, please contact EPA at GasSTAR@epa.gov
Mains and Services
	Menassian, Sarah: Subpart W factors are in scf/hour/miles or count, converted to Mcf/hour/miles or count Source: 40 CFR Part 98, Subpart W, Table W-7
Emission factors	Mains (mcf/yr/mile)	Services (mcf/yr/count)
Cast Iron	238.71	Menassian, Sarah: UPS is used as a proxy 1.66
Unprotected Steel	110.20	1.66
Protected Steel	3.07	0.18
Plastic	9.9	0.01
Copper	NA	0.26
Replacement factors	Cast Iron Replaced	UPS Replaced		"replacement factors" calculated as the difference between emission factors for the original and replacement pipeline material
MAINS Protected Steel	235.64	107.13
MAINS Plastic	228.81	100.30
SERVICES Protected Steel	1.48	1.48
SERVICES Plastic	1.65	1.65
SERVICES Copper	1.4	1.4
Equipment Leaks
Default Values
Average Annual Leak Rate per Facility1	1,700	mcf/yr
Efficiency2	0.7	percent (expressed as decimal)
Notes:
1 Derived from EPA Report to Congress, 1993.
2 Derived from “Cost Effective Leak Mitigation at Natural Gas Transmission Compressor Stations,” sponsored by the Pipeline Research Committee International (PRCI), EPA and GRI, 1999.