The latest Oxford City Council soil analysis of the allotment site found traces of polyaromatic hydrocarbons in the soil. We are therefore advised not to hold bonfires on plots for fear of adding to these traces. At the north-east corner of the site there is a communal bonfire facility, just near the communal compost. Please bring your burnable plot waste to the communal bonfire, rather than burning it on your own plot. Help yourself to the ash to put around your fruit bushes, or to discourage slugs and snails.
If you do wish to make your own bonfire, please conform to the
Code of practice for bonfires on Allotment sites.
The Oxford City Council website also has a page with advice about bonfires.