However, for one local resident, questions remain about the potential contamination from road run-off into the river system.

Waterfall Way resident Terry Walker has been a vocal opponent of the Dorrigo Quarry upgrade and the subsequent increased number of trucks driving up and down the mountain.

His residence is sandwiched between Waterfall Way Rd and the Bellinger River and he claims the oil slick from the road’s surface is making its way into the waterway.

“The slick on the river appears on a regular basis and it’s coming from vehicles,” Terry said.

“Oil spills, brake residue, tyre residue and all the other petrochemicals that come with a large amount of trucks travelling the mountain road … it all ends up washing off in the rain and ending up in the river.

“This is not good for the river’s health or the riparian zone.”

Terry’s report of a possible pollution incident in the Bellingen River sparked concerns within Bellingen Shire Council and a series of water samples were taken for analysis.

According to council’s general manager, Liz Jeremy, the “results of the water testing indicated that the level of hydrocarbons and BTEX (volatile organic compounds found in petrol) in the water meet Australian fresh and marine water guidelines. A further round of testing will be done and the situation will continue to be monitored”.

Despite these assurances, Terry remains adamant the environment is paying the price for industrial development.

“Something has to be done to stop this environmental degradation,” Terry said.

“I have a friend checking the Rosewood Creek for any clue as to if the mountain road drains empty into it.

“This is an issue that will not go away. With the snapping turtles at the edge of extinction, it’s a sure sign there’s something not right with the Bellinger River.”