There is a telemarketing operation making fraudulent accusations against the City of Keller's water quality.  It is, I believe, a firm trying to sell water purification units.

At 7:17 pm last night (11/9), we received a call from a firm stating that 'there have been complaints about water purity in the City of Keller' and offering a free water purity test and a free MP# player or digital camera just for having our water tested.  We declined, knowing that this accusation was false and the call was a thinly-veiled marketing ploy.