How are all the different types of injection wells regulated?
All injection well owners/operators are required to operate and (eventually) close their injection wells in a manner which will prevent contamination of a USDW. This means that injection can not cause ground water to exceed a primary drinking water standard or other accepted human health-based limits. This standard is the same for all types of injection wells. Compliance with this “non-endangerment” standard is ensured by EPA or a delegated state agency through the issuance of permits for some types of injection wells. However, most injection wells are authorized by rule.
