https://www.epa.gov/dwssa/guidance-petitioning-sole-source-aquifer-ssa-designation
Guidance on Petitioning for Sole Source Aquifer (SSA) Designation | US EPA
Jan 13, 2026 - Information on the EPA's Sole Source Aquifer (SSA) Designation Petitioner Guidance, to assist those interested in submitting SSA designation petitions to EPA...
sole source aquiferguidancepetitioning