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Administrative Use Permit Application No. PLAN-DIS-2026-00077, Mt. Ophir Exploratory Drilling Project

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State & Local

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Mariposa County has issued an administrative use permit application for the Mt. Ophir Exploratory Drilling Project, authorizing temporary surface mineral exploration activities across approximately 665 acres in California, specifically within the 95338 zip code area. The permitted activities include up to fifty core drilling locations, the establishment of temporary drill pads and equipment staging areas, and associated geological sampling and evaluation. This is a non-competitive forecasted action with no solicitation number or set-aside designation, and it does not assign a NAICS code or specify an organization type. The primary point of contact is Corrina Miranda, Interim Building Director, reachable at 209-742-1219 or cmiranda@mariposacounty.gov, while Ben Mossman, General Manager, serves as an additional contact at 604-219-9072 or bmossman@mariposa.gold. The permit application is accessible online via the CalEQA Net portal under project ID 2026061201.

General Info

Mariposa County permits 665 acres of exploratory drilling with up to fifty core sites in zip 95338, California.

Agency

California → Mariposa County

NAICS

541360 - Geophysical Surveying and Mapping ServicesView NAICS

Place of Performance

Highway 49 North & Mount Ophir Road, CA, 95338

Set-Aside

NONE

Documents

(1)

Notice of Exemption for Administrative Use Permit PLAN DIS 2026 00077

PDFnotice-of-exemption

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Organization & Contact Information

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AgencyCalifornia → Mariposa County
Contacts2 people available
OfficeN/A
Organization / Agency
California → Mariposa County
Office AddressN/A
Contacts
Corrina MirandaInterim Building Director
Ben MossmanGeneral Manager

Full Description

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The project consists of an Administrative Use Permit to allow temporary surface mineral exploration activities on approximately 665 acres. Authorized activities include up to fifty exploratory core drilling locations, temporary drill pads, temporary equipment staging areas, geological sampling and evaluation.

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