Sitka’s environmental superintendent Mark Buggins says Sitka’s water smells more strongly of chlorine — because there’s more chlorine in it. The temporary filtration plant at Indian River has much different disinfection requirements than Blue Lake, including higher chlorine. Disinfection standards are higher now than when the Indian River was last used as Sitka’s water supply in 1984. The city should go back on Blue Lake water in mid-October.