Nearly 100 rural Manteca residents are casting a wary eye toward the City of Manteca’s plans to potentially use recycled treated wastewater for everything from park and farmland irrigation to recharging underground water tables. Rural South Manteca resident Marty Harris on behalf of a new advocacy group being formed that’s dubbed Neighbors United on Tuesday presented the City Council with roughly 100 signatures asking that the use of recycled water be given exhaustive scrutiny. The bottom line of their worries is the recycled water eventually will make its way into underground water tables they depend upon for domestic and irrigation uses.