Tetreault Pond Reservoir Report

Last Updated: December 5, 2025

Tetreault Pond is a picturesque water resource located in Killingly, Connecticut, with a primary purpose of recreation.


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Summary

Built in 1900, this Earth dam stands at a height of 9 feet and has a length of 130 feet, creating a surface area of 40.4 acres and a storage capacity of 81 acre-feet. The pond is fed by Snake Meadow Brook and is regulated by the Connecticut Department of Energy and Environmental Protection (DEEP), ensuring state jurisdiction, permitting, inspection, and enforcement.

Despite its age, Tetreault Pond still serves as a significant water body with a hazard potential rated as "Significant". The dam has not been assessed for its condition, but regular inspections are conducted every 7 years, with the last one taking place in July 1986. Emergency Action Plans (EAP) have been prepared and updated in the past, with the most recent revision made in January 2005. While the risk assessment and management measures for the pond are currently unspecified, its natural beauty and recreational opportunities continue to attract water resource and climate enthusiasts alike.

In the heart of Windham County, Connecticut, Tetreault Pond remains a charming oasis for locals and visitors to enjoy water-based activities and immerse themselves in nature. With its historical significance, regulatory oversight, and potential risks, this man-made reservoir serves as both a serene retreat and a reminder of the importance of responsible water resource management in the face of changing climate conditions.

Year Completed

1900

Dam Length

130

Dam Height

9

River Or Stream

SNAKE MEADOW BROOK

Primary Dam Type

Earth

Surface Area

40.4

Drainage Area

1.58

Nid Storage

81

Hazard Potential

Significant

Nid Height

9
       
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.