# NORTHERN ILLINOIS GAS CO — Integrity Assurance Notification

- **operation:** document
- **citation:** PHMSA 20-197971
- **title:** NORTHERN ILLINOIS GAS CO — Integrity Assurance Notification
- **source type:** inspection
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2020-12-09
- **effective on:** 2020-12-09
- **summary:** GAS TRANSMISSION in IL; PROGRAM; PHMSA status: OBJECTIONS RESOLVED.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-leading-ian-20-197971-operator-13710.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-leading-ian-20-197971-operator-13710.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-leading-ian-20-197971-operator-13710
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/data_statistics/pipeline/SRCR_and_Integrity_Assurance_Notifications.zip
**body:**

Pursuant to 49 C.F.R. § 192.909, the purpose of this notification is to make you aware of a significant change to our Integrity Management Plan (IM Plan). Nicor Gas has added the potential threat of stress corrosion cracking (SCC). While Nicor Gas has not previously considered SCC as a potential threat, our Southern Company Gas affiliated utility, Atlanta Gas Light, has identified SCC on a pipeline in Georgia.
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- **body characters:** 413