Green Valley Farms Reservoir Report

Last Updated: December 5, 2025

Green Valley Farms is a private recreational dam located in Chester, Pennsylvania, specifically in New Garden Township along Trout Run.


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Summary

Built in 1963, this earth dam stands at 23 feet high and stretches 680 feet in length, providing a storage capacity of 80 acre-feet. With a surface area of 7 acres and a drainage area of 0.2 square miles, Green Valley Farms offers a serene environment for water resource and climate enthusiasts to enjoy various outdoor activities.

Managed by the Pennsylvania Department of Environmental Protection, Green Valley Farms is regulated, permitted, inspected, and enforced by the state to ensure its safety and compliance with environmental standards. The dam's hazard potential is considered significant, with a fair condition assessment as of the last inspection in October 2017. Despite the potential risks, the dam's emergency action plan and risk management measures remain undisclosed, leaving room for further evaluation and improvement.

For those interested in exploring the intersection of water resource management and recreational infrastructure, Green Valley Farms presents a unique case study in dam safety and environmental stewardship. With its idyllic location, historical significance, and ongoing regulatory oversight, this dam serves as a valuable asset for both local communities and environmental enthusiasts seeking to understand the complexities of managing water resources in a changing climate.

Year Completed

1963

Dam Length

680

Dam Height

23

River Or Stream

TROUT RUN

Primary Dam Type

Earth

Surface Area

7

Drainage Area

0.2

Nid Storage

80

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

23
       
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.