Notice of Permit Modification

This is a modification of permit number 0441607-001-UC/1EX to update incorporated documents and change specific condition III.B.2 to allow simultaneous drilling at the exploratory well (IW-1) and the dual-zone monitor well (DZMW-1).

In Accordance With: The Application to Construct DEP Form No. 62-528.900(1) dated October 17, 2023, response to the Department’s request for additional information dated January 16, 2024, application addendum dated May 29, 2024, revised application addendum dated July 2, 2024, the December 22, 2025 request to adjust the drilling sequence, the Department’s December 23, 2025 request for additional information related to the requested sequence adjustment, the permittee’s response dated January 29, 2026, the Department’s review of the permittee’s response dated February 3, 2026, and supporting information submitted to the Aquifer Protection Program (APP) Tallahassee office.
Specific Condition III.B.2 is changed to the following:

Exact depths of casing seats and monitor intervals shall be determined based on field conditions and the results obtained during the construction and testing program and are subject to the conditions of this permit. [62-528.410(4)(c)] If drilling the exploratory well and monitor well simultaneously, the permittee will prevent influence from drilling activity at the exploratory borehole from causing adverse impacts during construction and testing of the monitor well. The permittee will ensure that the zone being drilled and tested in the exploratory well is cased off prior to advancing to that zone in the monitor well. No monitoring zone shall be approved until the exploratory well is completed.

To Construct: One Class V, Group 9, exploratory well (IW-1) at the Mosaic Fertilizer, LLC, Plant City Facility and associated dual-zone monitor well DZMW-1. No injection is authorized by this permit with the exception of short-term injection testing to test the suitability of the proposed injection zone.

If the subsurface conditions observed during the exploatory activities authorized under this permit are suitable, the permittee will later apply for well reclassification as a Class I injection well system for the disposal of treated industrial wastewater managed under the Mosaic Plant City Facility’s National Pollutant Discharge Elimination System Permit (FL0000078). This includes wastewater stored in the phosphogypsum stack system (gyp-stack), phreatic water collected by the gyp-stack underdrain system, and recovery well water.

The primary proposed location for IW-1 is latitude 28˚ 09’ 41.78” N and longitude 82˚ 08’ 25.97” W and the secondary location is latitude 28˚ 08’ 51.25” N and longitude 82˚ 08’ 19.08” W.
IW-1 is proposed to be constructed with a 20-inch diameter casing set to 3,610 feet below land surface (bls), an 11.75-inch diameter tubing set to 3,600 feet bls with a cemented annulus, and total depth of 8,000 feet bls.
The dual-zone monitor well (DZMW-1) will be completed in the Lower Floridan aquifer from 1,700 to 1,800 feet bls and 2,700 to 2,800 feet bls.
This minor modification becomes a part of and must be attached to permit 0441607-001-UC/1EX. All other permit conditions and specifications remain in effect.

Notice of Rights

This action is final and effective on the date filed with the Clerk of the Department of Environmental Protection (Department) unless a petition for an administrative hearing is timely filed under Sections 120.569 and 120.57, F.S., before the deadline for filing a petition. On the filing of a timely and sufficient petition, this action will not be final and effective until further order of the Department. Because the administrative hearing process is designed to formulate final agency action, the hearing process may result in a modification of the agency action or even denial of the application.

Petition for Administrative Hearing

A person whose substantial interests are affected by the Department’s action may petition for an administrative proceeding (hearing) under Sections 120.569 and 120.57, F.S. Pursuant to Rules 28-106.201 and 28-106.301, F.A.C., a petition for an administrative hearing must contain the following information:
(a) The name and address of each agency affected and each agency’s file or identification number, if known;
(b) The name, address, any e-mail address, any facsimile number, and telephone number of the petitioner, if the petitioner is not represented by an attorney or a qualified representative; the name, address, and telephone number of the petitioner’s representative, if any, which shall be the address for service purposes during the course of the proceeding; and an explanation of how the petitioner’s substantial interests will be affected by the agency determination;
(c) A statement of when and how the petitioner received notice of the agency decision;
(d) A statement of all disputed issues of material fact. If there are none, the petition must so indicate;
(e) A concise statement of the ultimate facts alleged, including the specific facts that the petitioner contends warrant reversal or modification of the agency’s proposed action;
(f) A statement of the specific rules or statutes that the petitioner contends require reversal or modification of the agency’s proposed action, including an explanation of how the alleged facts relate to the specific rules or statutes; and
(g) A statement of the relief sought by the petitioner, stating precisely the action that the petitioner wishes the agency to take with respect to the agency’s proposed action.

The petition must be filed (received by the Clerk) in the Office of General Counsel of the Department at 3900 Commonwealth Boulevard, Mail Station 35, Tallahassee, Florida 32399-3000, or via electronic correspondence at Agency_Clerk@FloridaDEP.gov. Also, a copy of the petition shall be mailed to the applicant at the address indicated above at the time of filing.

Time Period for Filing a Petition

In accordance with Rule 62-110.106(3), F.A.C., petitions for an administrative hearing by the applicant and persons entitled to written notice under Section 120.60(3), F.S., must be filed within 14 days of receipt of this written notice. Petitions filed by any persons other than the applicant, and other than those entitled to written notice under Section 120.60(3), F.S., must be filed within 14 days of publication of the notice or within 14 days of receipt of the written notice, whichever occurs first. The failure to file a petition within the appropriate time period shall constitute a waiver of that person’s right to request an administrative determination (hearing) under Sections 120.569 and 120.57, F.S., or to intervene in this proceeding and participate as a party to it. Any subsequent intervention (in a proceeding initiated by another party) will be only at the discretion of the presiding officer upon the filing of a motion in compliance with Rule 28-106.205, F.A.C.

Extension of Time

Under Rule 62-110.106(4), F.A.C., a person whose substantial interests are affected by the Department’s action may also request an extension of time to file a petition for an administrative hearing. The Department may, for good cause shown, grant the request for an extension of time. Requests for extension of time must be filed with the Office of General Counsel of the Department at 3900 Commonwealth Boulevard, Mail Station 35, Tallahassee, Florida 32399-3000, or via electronic correspondence at Agency_Clerk@FloridaDEP.gov, before the deadline for filing a petition for an administrative hearing. A timely request for extension of time shall toll the running of the time period for filing a petition until the request is acted upon.

Mediation

Mediation is not available in this proceeding.

Judicial Review

Once this decision becomes final, any party to this action has the right to seek judicial review pursuant to Section 120.68, F.S., by filing a Notice of Appeal pursuant to Florida Rules of Appellate Procedure 9.110 and 9.190 with the Clerk of the Department in the Office of General Counsel (Station #35, 3900 Commonwealth Boulevard, Tallahassee, Florida 32399-3000) and by filing a copy of the Notice of Appeal accompanied by the applicable filing fees with the appropriate district court of appeal. The notice must be filed within 30 days from the date this action is filed with the Clerk of the Department.
03/04/26 (79689b)