The Danbury Department of Health & Human Services is offering free well water test kits to the first 100 Danbury residents who request one. Testing provides water quality information and ensures it's safe to drink. The test can determine levels of contaminants, such as iron and manganese. People can get a test kit online or in person. Samples taken from the kitchen sink on Tuesday after 12pm and then refrigerate it. The sample must be returned to the Danbury Health Department before 11am on Wednesday.