12/9/20 Manganese – Stromlo District. A result from the routine monitoring program, an elevated level of manganese was detected at a commercial property. From various checks it was determined that the lack of water use during the COVID-19 period had allowed the metal to accumulate. The levels were resolved through flushing water through the service pipes.

Manganese: ADWG Guidelines 0.5mg/L. ADWG Aesthetic Guideline 0.1mg/L
Manganese is found in the natural environment. Manganese in drinking water above 0.1mg/L can give water an unpleasant taste and stain plumbing fixtures and laundry.