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​Specialty Granules Quarry

Air Permit Renewal Application

Specialty Granules mines minerals used in the production of roofing and building materials. The Specialty Granules facility is required to maintain an air quality permit, which is periodically renewed. The most recent renewal of this permit occurred on 1/11/24.

State-only Air Quality Permit Renewal 01-05016 issued on 1/11/24

DEP 1/10/24 Addendum to Review Memo for Air Permit Renewal

SGI 2017 Air Permit Renewal Application and DEP Review Materials through 2019

Mining Permit Applications

Application and Supporting Materials for a National Pollution Discharge Elimination System (NPDES) Permit and a Large Noncoal Surface Mining Permit for Specialty Granules, LLC (SGI) proposing the development and mining of metabasalt minerals from an approximately 112.3 acre portion of SGI-owned property known as the “Northern Tract” which is adjacent to the Pitts Quarry that SGI is currently operating in Hamiltonban Township, Adams County. 



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