(Posted by Gerald Winegrad).

The recent deluges leading to massive stormwater runoff into the Chesapeake Bay may cause great damage to an already seriously impaired system. We previously have discussed in this spot the huge flows of Bay-choking nutrients and sediment from farms each time it rains. Now, we will devote discussions to the pollution flowing from developed lands including huge amounts of nutrients, sediment, and toxic chemicals.

The Chesapeake’s watershed before 1607 was 95 percent forested with huge acreage of intact wetlands. These forests and wetlands absorbed and held nutrients and sediment. The flow of these Bay-killing pollutants was greatly accelerated due to enormous changes in land use when we converted forests and wetlands to agriculture and then, more recently, to development. The Bay region has since lost about 50 percent of its forest cover and 72 percent of its wetlands. No change has been more devastating for the Bay.