Volunteers who clear the dog waste receptacles in Ridgefield along Main Street say people have been putting general garbage in them.  The volunteers, including high schoolers and Girl Scouts, have found coffee cups, beer cans and baby diapers among other items.  The green trash receptacles are also being misused along the Rail Trail and on the Parks and Rec pathways.  Volunteers and members of the dog waste committee caution that if people continue to put general trash into the stations, they could be taken down.  They are also calling for more volunteers to empty the receptacles.