1 Ground water wells can also be tested for radon, then, if needed, can get a water radon mitigation system installed. 2  Installing a water radon mitigation system runs from $1,000-$4,500, and maintenance runs $0 to $150 annually. 3  To find out about radon content in a city water system, call the local water provider. It's wise to retest a home's radon level every year or two after a mitigation system is installed. 2  Most radon mitigation systems include a fan, which will need to be replaced about every 5 years. 3  Expect to pay $250-$300 to have this necessary maintenance done.
Meaning of âhandyâ in the English Dictionary. handy in British English. handyadjective. handy adjective (USEFUL) First-time visitors to France will find this guide particularly handy. It's a nice house and it's handy for (= near) the train station. informal Don't throw those bottles away - they'll come in handy (= be useful) for the picnic next Sunday.
Handy is from c.1310; handful was in O.E. Phrase on the one hand ... on the other hand is recorded from 1638, a fig. use of the physical sense of hand in reference to position on one side or the other side of the body (as in the lefthand side), which goes back to O.E. Hands up! as a command from a policeman, robber, etc., is from 1873.