Jacksonville Waste Water Lagoon Reservoir Report
Last Updated: December 15, 2025
The Jacksonville Waste Water Lagoon, also known as the Land Treatment Facility Storage Lagoon, is a crucial water resource infrastructure owned by the local government in Onslow, North Carolina.
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Summary
This lagoon, completed in 1997 and located near Southwest Creek, serves a primary purpose of waste water treatment. It has a structural height of 15 feet and a hydraulic height of 10 feet, with a maximum storage capacity of 15 feet and a normal storage capacity of 12 feet. With a surface area of 500 square feet, this lagoon plays a vital role in managing water resources in the region.
Regulated by the North Carolina Department of Environmental Quality (NCDEQ), this lagoon has undergone regular inspections to ensure its satisfactory condition and high hazard potential is managed effectively. The last inspection in September 2018 confirmed the lagoon's overall satisfactory state. Despite its high hazard potential, the lagoon's emergency action plan (EAP) status and risk assessment details remain unclear, indicating a potential area for further improvement in emergency preparedness and risk management. With its critical role in waste water treatment and water resource management, the Jacksonville Waste Water Lagoon continues to be an essential piece of infrastructure in Onslow, North Carolina.
Overall, the Jacksonville Waste Water Lagoon stands as a key water resource infrastructure in Onslow County, North Carolina, ensuring effective waste water treatment and management in the region. With its high hazard potential and satisfactory condition, continuous monitoring and improvement in emergency preparedness and risk management are essential to maintain the lagoon's functionality and reliability. As a regulated facility by the NCDEQ, the lagoon plays a crucial role in safeguarding water resources and environmental quality in the area, making it a vital asset for climate and water resource enthusiasts to monitor and support.
Year Completed |
1997 |
Dam Length |
15000 |
River Or Stream |
Southwest Creek |
Primary Dam Type |
Earth |
Surface Area |
500 |
Hydraulic Height |
10 |
Nid Storage |
15 |
Structural Height |
15 |
Hazard Potential |
High |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
New River Near Gum Branch
|
44cfs |
Northeast Cape Fear River Near Chinquapin
|
259cfs |
Trent River Near Trenton
|
19cfs |
Neuse River At Kinston
|
864cfs |
Bear Creek At Mays Store
|
98cfs |
Neuse River Near Fort Barnwell
|
1500cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Jacksonville Waste Water Lagoon