In the US, is there any law that governs the amount of pollution generated on private land?
<p>I'm thinking about a scenario where one does car repairs, shoots in their backyard, and handles industrial materials.  Even large amounts of paint.  You are supposed to take these to a junkyard or other disposal company, who handle them for you.  </p>

<p>But what if there's been a large amount of it seeping into the ground onsite for a while?  Do superfund laws come into play eventually, if you were handling lots of lead, etc?  Is this a state-by-state thing?  One private landowner may not have enough wherewithal to figure out problems with the local waters, streams and rivers. </p>

<p>Even a handful of major precedents would help, here. </p>

<p>All of this is just in contemplation of having a property where lots of different kinds of non-commercial DIY things are done.  Not seeking legal advice, just the related laws or precedents.</p>

<p>In the US, there are <strong>many</strong> laws governing the amount of pollution generated on private land. It's not easy to get a handle on these laws.  </p>

<p>One problem, which you mention, is our federalism. In the US, you are likely to be subject to federal, state and local governments. And each of those governments is likely to have different rules covering different aspects of keeping air, water and ground clean. Those different rules may be enforced by different agencies, or different parts of the same agencies. Finally, regulatory agencies each have their own processes for making and enforcing law. </p>

<p>Put these various governments, statutes, rules and procedures together and the result can be overwhelming and baffling, even to experts. </p>

<p>Unfortunately, if you want to understand what laws you will need to pay attention to you, you have to make sense of this system. If you don't, you are going to continue to be puzzled, wondering which of the various laws or agencies you hear about affect you. </p>

<p>My recommendation for getting a handle on this mess is to start with <a href="https://www.theatlantic.com/science/archive/2017/03/how-the-epa-and-us-environmental-law-works-a-civics-guide-pruitt-trump/521001/" rel="nofollow noreferrer">these</a> <a href="https://www.hazardouswasteexperts.com/federal-and-state-regulations-on-hazardous-waste/" rel="nofollow noreferrer">overview articles</a>. These lay out the basics of pollution control in the US. They are easy reads, and give a sense of the various pieces -- Congress, President, Courts, Agencies, statutes, rules and so on -- what they do, and of how they all fit together. If you know the big picture, it's easier to keep track of the various detailed parts you come across as you dive into the rules regarding specific topics.</p>

<p>As far as the law of hazardous waste, the EPA (Environmental Protection Agency) has some nice web pages covering various aspects of the law of hazardous wastes. You should probably start with their <a href="https://www.epa.gov/hw/learn-basics-hazardous-waste" rel="nofollow noreferrer">learn-the-basics</a> page. At the federal level, hazard waste is covered by the RCRA (Resource Conservation and Recovery Act). EPA has a page giving an <a href="https://www.epa.gov/rcra/resource-conservation-and-recovery-act-rcra-overview#how%20does%20rcra%20work" rel="nofollow noreferrer">overview</a> of the RCRA generally, and a page giving an overview of its <a href="https://www.epa.gov/regulatory-information-topic/regulatory-information-topic-waste" rel="nofollow noreferrer">application</a> to hazardous waste.</p>

<p>Once you've digested these, you'll be in good shape to use your favorite search engine to do more focused searches. You'll also be in good shape to recognize which of the results you get will be useful to answer your specific questions. </p>

united-states environmental water watershed