Heavy rain in March 2019 washed thousands of kilograms of waste downstream.
Greymouth police are appealing for information about several suspicious fires over the New Year holiday period.
A coronial inquest is currently underway to determine the cause and circumstances of Clive Jenkins' death.
Greymouth's biannual field day was busier than ever.
The event was originally scheduled to take place in March.
The quake hit 50km south of Hokitika.
Both properties were engulfed in flames.
The prototype measures currents to predict which way the person has drifted.
Tourism operators say it will be critical for their survival.
