"Then its left, and left and left and it becomes an absolute disgrace."
Smith's property backs onto the reserve.
A council spokesperson said city waterways are regularly cleaned and that the dog's death is potentially from a bacterium growing in the pond.
Smith said the waterway was neglected for months this year and was only taken seriously once it reportedly cause the dog's death.
"What i find irritating is you cant get a straight answer from whoever is responsible for a maintenance programme to take place so people don't need to worry about it."
Stuff reported tests showed potential toxic algae blooms at the pond.
The test was carried out after 5-year-old Weimaraner cross, Skye, died from a suspected algae poisoning.