I have a page where that has a 'Text' dataTable field. And have $fields->addFieldToTab("Root.Main", new TextField('ValuesToCheck'), "Content"); added to the getCMSFields().
Looking in the database its storing it with \r\n and the ' " symbols but when I use $ValuesToCheck in my .ss Templete file it formats the \r\n with

<br />, and &quot; &#039;

. Is there a way to disable this autoformatting of the text so that its just returning the raw text.

I do not really know how the TextField works, but you can manipulate data before it is written using onBeforeWrite, and perhaps write a function to reformat the data, stripping out any unwanted formatting. Maybe something like this

 public function onBeforeWrite() {
    $this->ValuesToCheck = $this->reformat($this->ValuesToCheck);

    // CAUTION: You are required to call the parent-function, otherwise
    // SilverStripe will not execute the request.
    parent::onBeforeWrite();

}

more on onBeforeWrite here:

http://doc.silverstripe.com/framework/en/topics/datamodel