The Candlewood Lake Authority is seeking a special allocation from the 5 towns surrounding the lake.  CLA is asking for $20,000 so they can hire the Connecticut Agricultural Experiment Station to continue mapping weeds.  The lake's owner, FirstLight Power Resources, hired Northeast Aquatic Research this year to do mapping and determine if sterile grass carp are working to manage the invasives.  Their bid was less costly and the decision was supported by other lake authorities.  The CLA says the state organization is an independent entity, and is concerned the new company, which sells chemical treatments, won't be objective.  New Fairfield and Brookfield have agreed to cover some of the expense.  FirstLight Power Resources is required to map the weeds in the lake as part of its federal license.