Kym's court case took place today but she did not appear in court and was not represented by a solicitor, says the Manchester Evening News.
But the court was told Kym had admitted her guilt and agreed to pay costs of the clean-up.
Paul Scott, prosecuting for the council, said: "The defendant is charged with an offence contrary to the Environmental Protection Act 1990 commonly known as fly tipping.
"The city council has reviewed this case following detailed representations made by the defendant. After careful consideration, it is believed it would not be in the public interest to pursue the prosecution.
"The defendant has admitted her guilt to this charge by acccepting a simple caution."
He said Kym had accepted all the costs for the clean up and for bringing the case to the court.
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