Volunteers sought for 24th annual Christina River Cleanup on April 18 NEW CASTLE COUNTY (March 24, 2015) – DNREC Secretary David Small encourages volunteers to join the Christina River Watershed Cleanup along the river and several of its tributaries on Saturday, April 18 from 8 a.m. until noon at 12 sites throughout northern New Castle County. Brookhaven Park, an expanded site this year, will hold its cleanup from 9 a.m. to noon. This post was imported from a legacy archive. Please excuse any formatting inconsistencies. Related