The Hawke's Bay Regional Council and Napier City Council are again warning about pollution after the discovery of what is regarded as a "small" discharge of diesel or oil into the Napier inner harbour on Monday.
The councils said the leak, via stormwater pipes, was a reminder to local industries to check their operations to try to avoid such problems.
![Cam Hopkirk, who discovered and reported the leak, carries out his own test 24 hours later. Photo / Warren Buckland](https://www.nzherald.co.nz/resizer/v2/F7INUDE4PEJDYTGJOXGFT2BIGY.jpg?auth=baa78141100774e593aadfa59d6d6def3524cbbe168d8c975bd710f10f6a6a3d&width=16&height=9&quality=70&smart=true)
A discharge of diesel/oil (hydrocarbons) was reported at the western end of the inner harbour, part of what is otherwise known as Te Whanganui a Orotu or the Ahuriri Estuary.
The small slick was noticed by Cam Hopkirk, an employee of Now Broadband in Ahuriri, who was walking past about 3.30pm on Monday.