There will most likely be a local waste disposal company ( for local people ! ) in your area. Antifreeze, brake fluid, waste mixed fuels, waste oil, lead acid batteries are all controlled waste and require collection notes to be produced from registered carriers if you get a visit from the local council/environment people. Also, its YOUR responsability to ensure the company you choose meets the legislation requirements. Don't be concerned about ringing the HSE ( health & safety executive ) for your area, they are most helpful if you start out this way ( pro active ) and you will find you get little hassle from them in the future.