Have a 7 year old well (about 220 feet) deep. For the past month I have had very dirty water... never have before... and there has not been any extremely heavy rain. I have a spring fed lake near my home and well... and the well, home and lake are situated near a moderate runoff from a 40 acre field (not in use for the past 7 years). We've never had any sight of dirty water or any problems before. Should I have been doing something all these years? We don't drink the water and use bottled water for cooking, but my toilets and wash are very dingy and dirty. The cold water has always smelled but I thought that was part of living with well water. Will this problem work its way out or should I take some sort of action? Perhaps a shift in the ground caused this? It's been a month since this started.