Does any municipality or manufacturer have standards or recommandations for the lighting of an exterior dog park?

We have a rectangular dog park measuring 30 m × 70 m and have no standard as which light intensity and uniformity should we design for. Is 15 or 25 lux acceptable or should we aim for an average ligthing in the 50-100 lux range? We plan to install the lighting system on top of two 35' poles.

Thank you in advance for any advice. Standards in imperial units are also acceptable to us, we'll make the conversion.

Pierre Caron
Ville de Montréal