Underground Transformer and Equipment Inspections 
 
 
Ameren Missouri is complying with reliability rules issued by the Missouri Public Service Commission (MoPSC) regarding the inspection of underground facilities.

Under the rules, utilities must visually inspect underground transformers and other pad-mounted equipment once every four years, and open this equipment and perform detailed inspections once every eight years.

How this impacts you - the property owner
If you receive a letter from Ameren Missouri indicating your pad-mounted equipment will be inspected, please note that some action may be required on your part. We will follow a standard procedure for completing this work:

 

  • Within a few weeks of the date of the letter, Ameren Missouri representatives will be in your area to inspect our underground facilities. Please prepare for their visit. Check the area around the pad-mounted equipment. Assess what you need to remove to obtain proper clearance. See the illustration above.

 


Note:
These clearances are required for the proper maintenance and operation of Ameren Missouri's equipment. Inability to maintain or operate our equipment can lead to a lengthy outage for property owners and their neighbors.

Please call 811 before you dig so underground utilities can be marked and identified. Find more information on the Missouri One Call website.

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