On behalf of the approximately 16,000 Sierra Club members in Virginia, I register our support for tighter regulation of poultry litter in Virginia.    It is essential that the resources contained in poultry litter be properly managed so that our water is not polluted by runoff coming from land that has too much poultry litter applied and land that is too close to water for the nutrients to be absorbed by the land before runoff occurs.    The nutrient pollution coming from poultry litter represents a big waste of resources - the poultry feed and the labor and resources that produced that feed.   The USA can not afford either water pollution nor can it afford the waste of nitrogen and phosphorus resources.