Officials in Gladewater are working to figure out the cause behind elevated levels of lead in the city's drinking water. On Monday, the city sent out a notice advising residents that water tested from June to September had higher than usual levels of lead. Levels that were not a violation under fed
The cause of the lead in the drinking water is unknown.
( z1 know :polarity - :ARG1 ( z2 thing :ARG0-of ( z3 cause :ARG1 ( z4 lead :location ( z5 water :ARG1-of ( z6 drink ) ) ) ) ) )