This does sound like a good idea for a class for events like Round Tables and Conventions.
Tony does bring up a great point, the tire marks will look like oil when cleaning large parking areas and we want the public and property owners to know the truth and how we are cleaning responsibly and removing pollution so the rain events will not cause the pollution to reach the US Bodies of water.
We need the public and property owners to know what we are doing, how we are helping the environment, how we are safely removing the pollution, how we are environmentally aware of the situations we are working in, how we are trying to help educate the public and property owners of the truth about being environmentally friendly and how doing the right thing all the time does not double, triple or quadruple the cost of the work when it is routine cleaning unless it is a specific situation that needs excessive equipment or procedures to do the job where most routine cleaning jobs are affordable for the customer.
Maybe even put together a video showing cleaning with explanations on the runoff, what it really is so we are helping the customers and not scaring people or deceiving them.
The video can show different types of cleaning jobs and how they are done correctly and how it does not have to be excessively expensive and what to look out when scare tactics are used with them, we can show them the ways how the job can be done affordably, safely and without damage so they have peace of mind and not worry about getting fined or their property getting damaged.
Jon brings up a good point, if someone does not know that the black runoff when cleaning concrete is mostly tire marks, they might assume the worst and maybe even call someone about all the black runoff where educating them about what it is, how we deal with it and what to ask contractors to make sure they do the job right but without needing excessive equipment or that they understand the cleaning situation so nobody does anything wrong when doing the work.
Helping everyone out there understand that cleaning can be affordable, not need expensive equipment, how we safely remove pollution and how we can help the regulators understand this so there is no need for excessive or more regulations, just common sense.