Green dye in river tracks faulty storm system connection

NANAIMO – Plumbing work at Nanaimo Regional General Hospital turned Millstone River green.

Water in the Millstone River that turned green last week was caused by water tracer and leak detection dye.

Valerie Wilson, Island Health spokeswoman, confirmed on Tuesday that plumbers working at Nanaimo Regional General Hospital on Sept. 1 were using the dye to track down a faulty connection into the storm water system.

The dye is an environmentally harmless product used to find storm and sewerage system failures.