OMB Control No. 2060-0722

.., .	_ _. . .	Approval expires 12/31/2024

City of Ellensburg Gas Division

Distribution System
Best Management Practices
Methane Challenge Partner Since 2022

WASHINGTON

Background

The City of Ellensburg Gas Division serves about 5,000 customers in the heart of Washington State. Since becoming
a utility in 1956, the City of Ellensburg has proudly served the small farming community, Central Washington
University, and surrounding areas. Right from the beginning, the City Gas Division worked hard to minimize system
emissions by using high quality materials and not allowing anything outside of coated/wrapped steel or high-density
polyethylene pipe for its piping network. With a system that see very few leaks, the Gas Division has been able to go
above and beyond to minimize emissions and maintain system integrity at the highest level.

Performance Metrics

The Gas Division identifies areas of potential emissions and
actively works to eliminate or reduce those through the tracking
of performance metrics. These performance indicators directly
support our Distribution Integrity Management Program and
provide a guide to methane reduction within our system. Some
of the metrics and averages include:

Emergency Response Time: <13 Minute Average

Excavation Damages Per 1000 Tickets: 2.34 since 2016

Grade 2 or 3 Leaks Left Unrepaired: 0 Since at least 2016

Historical Highlights

Increased Leak Survey Frequency

For over 20 years the City of Ellensburg Gas Division has
put an emphasis on increased pipeline safety and integrity
with an accelerated leak survey frequency. The City
survey's its entire system over a 4-year period compared
to the required 5-year period. The accelerated leak
surveys have limited the time in which a leak may go
undiscovered, reducing the exposure time of leaks and
potential for major leaks.

EPA Form No. 5900-413

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