Environmental and community advocates are calling for a federal judge to order the city of Newark to speed its response to lead contamination of drinking water. They are asking Judge Esther Salas of U.S. District Court for the District of New Jersey to make the city expand and improve its distribution of bottled water and tap filters, as well as expedite a plan to replace lead pipes. Salas pressed the lawyer for Newark, Eric L. Klein of Beveridge & Diamond PC, on the adequacy of the city’s response, amid Aug. 15 arguments on the request for expanded water…