Public Notice: Draft 5X16 Permits Re-issuances for Martin Marietta Magnesia Specialties, Wells S-26 and S-34

Summary

EPA is providing the public an opportunity to comment on the proposed re-issuances of two Class 5X16 permits for Wells S-26 and S-34 to Martin Marietta Magnesia Specialties (“Martin Marietta”), LLC, 1800 Eastlake Road, Manistee, Michigan. Martin Marietta produces from the Filer Sandstone, a natural brine that is rich in calcium chloride and magnesium chloride, extracts the magnesium, and reinjects the spent brine underground for disposal through two existing Class 5X16 spent brine injection wells, S-26 and S-34, located in Manistee and Mason Counties, Michigan, into the Amherstburg and BoisBlanc Formations, a rock formation 2565 feet below the ground surface. The comment period will close at 11:59 pm on February 18, 2025.

Applicants or Respondents

Docket Numbers

• EPA-R05-OW-2024-0614

Related Documents

• Draft Permit 16 (pdf) (1.98 MB)
  Draft of a general permit pertaining to underground injection control for Well S-26
• Draft Permit 17 (pdf) (1.99 MB)
  Draft of a general permit pertaining to underground injection control for well S-34.
• Fact Sheet for Martin Marietta Magnesia Specialties LLC (pdf) (328.89 KB)
  Fact sheet depicting how to comment on the proposed re-issuance of two Class 5X16 permits to Martin Marietta Magnesia Specialties.