Here is the second set of Citizen Monitoring Reports for 2011, covering the period May 26 to June 16. The weather has continued to be rather warm and dry.
- Low Dissolved Oxygen readings (D.O. < 4 ppm) became more widespread. Severely low readings (< 2 ppm) were common in the South Bethany canals and may have been due to decaying macroalgae. Two sites in the Broadkill watershed, the Prime Hook boat ramp and Old Mill Creek, also experienced severely low DO.
- Accumulations of Nuisance Aquatic Vegetation are dwindling; major accumulations were restricted to one canal in South Bethany and to Diamond Pond in Milton.
- Total Enterococcus (TE) levels were elevated in the upper portions of Guinea and Dirickson Creeks and in two streams in the Broadkill watershed (Ingram Branch and Ingram Ditch). The James Farm had an unusually high sample, but TE levels were reduced on the bay at Fenwick Island.
- Harmful Algae Blooms included a few moderate blooms of potentially toxic Chattonella species in a few canals, seemingly displacing the Heterosigma blooms that occurred in May. Other potentially toxic species were present at low cell densities. High cell densities of the non-toxic diatom Skeletonema were observed in Indian River Bay and its tributaries. High cell densities of a small unidentified algae occurred in Red Mill Pond.