Septic and wastewater systems in Colorado are a big deal. If you own one or if you are representing a client owner who has one or is imperative that you understand the legal requirements to owning an on-site waste water system. Here we are abandoning an existing and illegal greeter system in Boulder County, COLORADO. The regulation call for onsite wastewater system to be properly abandoned by a licensed onsite wastewater installer in the county where the work is being done. Proper abandonment of a water water tank involves pumping it out and destroying the tank such that it won’t hold air or water. In this case, as we’ve demonstrated in the video, we pumped it out and then entered the tank to puncture the bottom. We them filled it with squeegee and spoils from another job we recently completed. You can see in the video that this is a confined entry situation which calls for extensive safety considerations. OSHA lays out standards for the proper ways to enter a tank or any confined space. I had a close call on this job because there was a false bottom in the tank and the tank was actually much deeper than it originally appeared to be. Luckily, I was able to notice before anything catastrophic happened and it was a good learning opportunity for myself and my co-worker.