This lab will be a command center should terrorists ever strike California’s drinking water supply. Ditto if any other water-borne contaminant starts making people sick. But the real bread-and-butter work done here is much more mundane than that. It’s the daily testing for things like mercury, lead, E. coli -- contaminants all water agencies routinely test for. And that list is growing, says Scott, as he opens the door to a small, mostly empty laboratory. SCOTT: “This was designed for the future needs of the water district, so that when we do get into the monitoring of pharmaceuticals.