. >> narrator: but inside the plant, we've learned t lt a foreman named matt mcfarland was having concernsid, "we're not ready." he said the plant wasn't ready.n the funding just wasn't there. the staffing wasn't there. there was a lot that would need to be done, and it would take time. >> narrator: mcfarland died in 2016, but while working at the water plt, he regularly confidedn his sistja petrla. this is the first time she's spoken publicly about her brother's concerns. >> he would call me, a he would just be so upsetand he would leave me messas that wereweust frantic, like, "to "a, you have to ll me right away. please call me right away." i mean, he knew that they >> narrator: as the deadline approached, mcfarland expressed his concerns to his supervisors. one of them, mike glasgow, had concerns, too. he wouldn't speak to us, but in an email, he told state were to open on schedule, "it will be against my direction." later told investigators hest ver received a response. >> the city right now is just testing and treating this war. they're not using it in the drinking water yet. they hop