# Illinois Commerce Commission — State Waiver

- **operation:** document
- **citation:** PHMSA-2020-0111
- **title:** Illinois Commerce Commission — State Waiver
- **source type:** permit
- **agency:** Illinois Commerce Commission
- **status:** historical
- **official:** true
- **published on:** 2020-09-18
- **effective on:** 2020-09-18
- **summary:** Illinois state waiver granted 2020-09-18 for 49 CFR 192.619.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-state-waiver-illinois-commerce-commission-09182020.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-state-waiver-illinois-commerce-commission-09182020.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-state-waiver-illinois-commerce-commission-09182020
- **source url:** https://www.phmsa.dot.gov/pipeline/special-permits-state-waivers/illinois-commerce-commission-09182020
**body:**

PHMSA-2020-0111. State: Illinois. Entity: Illinois Commerce Commission. Regulation: 49 CFR 192.619. Date granted: 2020-09-18.

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
September 18, 2020
Ms. Carrie Zalewski
Chairman
Illinois Commerce Commission
527 East Capitol Avenue
Springfield, Illinois 62701
Re: Docket No. PHMSA-2020-0111
State of Illinois – Illinois Commerce Commission, Docket Number 20-0467
Dear Ms. Zalewski:
On September 3, 2020, pursuant to 49 United States Code (USC) § 60118(d), the Pipeline and
Hazardous Materials Safety Administration (PHMSA) received a letter from the Illinois
Commerce Commission (Commission) notifying PHMSA that the Commission granted a waiver
of 49 Code of Federal Regulations § 192.619 to Elwood Energy, LLC (Elwood). This waiver
will allow Elwood to continue to operate 550 feet of its 24-inch intrastate natural gas
transmission pipeline at a maximum allowable operating pressure (MAOP) of 650 pounds per
square inch gauge (psig), which is located on the Elwood power plant property in Will County,
Illinois.
The 650 psig MAOP is based upon operating the pipeline at 60% of specified minimum yield
strength (SMYS), whereas 49 CFR 192.619 requires a MAOP of 542 psig based upon the pipe
being in a meter station and using a design factor of 50% SMYS for meter station piping. The
Commission issued the waiver to Elwood with conditions requiring quarterly leak surveys,
pipeline operations at no greater than 60% SMYS of the pipe, and retirement of the pipeline by
December 31, 2021.
Pursuant to 49 USC § 60118(d), PHMSA does not object to issuance of this waiver by the
Commission for the Elwood pipeline facilities provided the Company complies with the
conditions set forth in the waiver. PHMSA requests that a copy of the Commission’s final
waiver to the Company be forwarded to PHMSA within 30 days of issuance.

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If you wish to discuss this or any other pipeline safety matter, my staff would be pleased to assist
you. Please contact Sentho White, Director of Engineering and Research Division, at 202-366-
2415, for technical matters.
Sincerely,
Digitally signed by ALAN
ALAN KRAMER
KRAMER MAYBERRY
MAYBERRY Date: 2020.09.18 15:01:02
-04'00'
Alan K. Mayberry,
Associate Administrator for Pipeline Safety
PHMSA-2020-0111 – State of Illinois – Docket Number 20-0467 Page 2 of 2
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