City Reverses Itself On Effort to Protect Land at Reservoirs
Giuliani administration, after repeated efforts to persuade Federal Government to strictly limit building on marshes around New York City's upstate reservoirs, reverses itself, arguing wetlands need no special protection; city's new position echoes views of Republican officials from rural communities around reservoirs and pits city officials against private environmental groups and Federal Environmental Protection Agency, which say that special restrictions are needed because wetlands help to purify city's water; some environmental groups and Democratic city officials accuse Giuliani of putting his possible race for Senate, and need for Republican support outside city, ahead of his responsibility to protect water supply (M)