Halogens come from chlorinated solvents. Chlorinated solvents are hazardous waste. Under normal conditions, used oil does not contain any chlorinated solvents. For used oil to be contaminated, these chlorinated solvents would most likely be mixed in with the used oil by the generator of the used oil. The generator is Mesa Oil's customer. We collect and recycle used oil generated by our customer.

Mesa Oil Inc's policy and procedure for the collection and recycling of used oil is guided by the following statement:

1. Drivers must always check in with the customers authorized representative before loading the used oil.

a. Authorized representative - The contact name is printed on your manifest. This is the person the customer has designated as being responsible for this area of their business. If the customer temporarily assigns some one other than the contact, you must write that persons name in next to the contact name. If the contact name is a permanent change, write the new name and an explanation in the special instructions section of the manifest.
b. No exceptions - even if the customer says you don't have to check in with them! - even if we have been servicing the customer every week for ten years!
Understand that each time we go to a customers location to collect the used oil, we are facing a new batch of used oil. The customer is the only one who knows if anything has changed regarding his used oil disposal practices, so we must give him the opportunity to tell us before we begin loading.
c. The customer is signing the certification part of our manifest stating that no hazardous waste has been mixed with the used oil. We must give the customer the chance to tell us if something is in the used oil before we load if we expect him to sign the certification.