Hil10 Reservoir Report

Last Updated: December 5, 2025

Hil10 is a private dam located in Plant City, Florida, with a primary purpose of tailings storage.


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Summary

The dam, classified as an Earth dam, stands at a height of 13.5 feet and has a length of 15,000 feet, providing a storage capacity of 17,346.56 acre-feet. The dam is regulated by the Florida Department of Environmental Protection (FDEP) and undergoes state permitting, inspection, and enforcement processes.

The dam, situated on an unnamed pond in Hillsborough County, Florida, poses an undetermined hazard potential and has not been rated for its condition assessment. Despite its critical role in tailings storage, key information such as the year of completion and last inspection date remain undisclosed. With its location in a high-risk hurricane zone, the dam's risk management measures, emergency action plan (EAP), and inundation maps preparation are currently unknown, raising concerns for potential environmental and public safety risks in the event of a catastrophic failure.

Water resource and climate enthusiasts monitoring Hil10 should be aware of the lack of available data on its safety and risk management protocols. With the dam's proximity to the Jacksonville District and its status as a privately-owned structure, stakeholders are urged to advocate for increased transparency and accountability in the monitoring and maintenance of this essential water resource infrastructure. Additional information on the dam's condition assessment, emergency preparedness, and risk mitigation strategies is crucial for ensuring the safety and sustainability of the surrounding community and environment.

Dam Length

15000

Dam Height

13.5

River Or Stream

UNNAMED POND

Primary Dam Type

Earth

Surface Area

341

Nid Storage

17346.56

Hazard Potential

Undetermined

Nid Height

14
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.