Holtrachem Stormwater Waste Lagoon dam
Holtrachem Stormwater Waste Lagoon
The Holtrachem Stormwater Waste Lagoon, located in Riegelwood, North Carolina, is a privately owned structure regulated by the NC Department of Environmental Quality and the Dam Safety Program. This earth dam was completed in 1995 and serves a primary purpose of managing stormwater waste. With a hydraulic height of 15 feet and a structural height of 18 feet, this lagoon poses a high hazard potential but has been assessed as satisfactory in condition as of its last inspection in 2018.
Sitting along the Cape Fear River, the Holtrachem Stormwater Waste Lagoon plays a crucial role in mitigating water pollution and ensuring proper waste management in the region. Its design and construction fall under the jurisdiction of state regulators, with regular inspections and enforcement measures in place to maintain its integrity and safety standards. Despite its high hazard potential, the lagoon's condition has been deemed satisfactory, providing assurance to local residents and environmental enthusiasts.
As water resource and climate enthusiasts, the Holtrachem Stormwater Waste Lagoon presents a unique case study in the intersection of industrial waste management, environmental regulation, and dam safety. Its location, design, and purpose underscore the importance of responsible water resource management in safeguarding our natural ecosystems and public health. With ongoing inspections and regulatory oversight, this lagoon serves as a reminder of the delicate balance between industrial needs and environmental stewardship in the face of climate change challenges.
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.
- 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.
- 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.
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, environmental 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.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Holtrachem Stormwater Waste Lagoon -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Cape Fear R At Lock #1 Nr Kelly | 1,410 cfs | → |
| Waccamaw River At Freeland | 7 cfs | → |
| Black River Near Tomahawk | 80 cfs | → |
| Northeast Cape Fear River Near Chinquapin | 43 cfs | → |
| Waccamaw River Near Longs | 24 cfs | → |
| Lumber River At Boardman | 251 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Holtrachem Stormwater Waste Lagoon.
Boat launches
- Sutton Lake Road 399, New Hanover County
- West Castle Street, Wilmington
- Castle Hayne Road 6501, Castle Hayne
- Shaw Highway 6138, Rocky Point
- Whitestocking Road 525, Burgaw
- Snow's Cut Boating Access
Campgrounds
Fishing spots
Track Holtrachem Stormwater Waste Lagoon in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Holtrachem Stormwater Waste Lagoon
Where does the data for Holtrachem Stormwater Waste Lagoon come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the High hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Holtrachem Stormwater Waste Lagoon.