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Good afternoon. I am Loren, a licensed attorney, and I look forward to assisting you.
The security deposit may only be used for excessive damages and unpaid rent. If the yard was damaged by the water you can charge for that, but not for unpaid utilities.
You will need to sue them in small claims court for the water bill. Small claims court is designed to be user friendly so that you can present a claim without an attorney. Also, it moves much more quickly than regular court.
I realize this is probably not the answer you were hoping to receive. Also, please remember that this is not necessarily a moral judgement on my part. As a professional, however, I am sometimes placed in the position of having to deliver news which is not favorable to a customer's legal position, but accurately reflects their position under the law. I hate it, but it happens and I only ask that you not penalize me with a bad or poor rating for having to deliver less than favorable news.
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