Epping Wastewater Lagoons dam
Epping Wastewater Lagoons
The Epping Wastewater Lagoons in Epping, New Hampshire, serve as a vital resource for the local community as a means of managing wastewater. Owned by the local government and regulated by the NHDES Dam Bureau, these lagoons have a significant storage capacity of 58.5 acre-feet and were completed in 1970. The lagoons cover an area of 8.1 acres and have a dam height of 9 feet, with a primary purpose categorized as "Other."
Despite being classified as having a "Significant" hazard potential, the condition assessment of the Epping Wastewater Lagoons is deemed "Fair," with the last inspection conducted in June 2017. The lagoons have a high risk level of 2, indicating the need for stringent risk management measures. The absence of a spillway and the lack of locks or outlet gates highlight the importance of regular maintenance and monitoring to ensure the safety and efficiency of these crucial wastewater management facilities in Rockingham County, New Hampshire.
For water resource and climate enthusiasts, the Epping Wastewater Lagoons represent a key infrastructure for wastewater management in the region. With a focus on maintaining water quality and environmental sustainability, the lagoons play a crucial role in meeting the community's needs. As the regulatory agency enforces state permitting, inspection, and enforcement, it is essential for stakeholders to remain vigilant in managing risks and implementing necessary measures to protect this essential water resource in Epping.
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 Epping Wastewater Lagoons -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Exeter River At Haigh Road | 52 cfs | → |
| Lamprey River Near Newmarket | 119 cfs | → |
| Oyster River Near Durham | 11 cfs | → |
| Winnicut River At Greenland | 17 cfs | → |
| Isinglass R At Rochester Neck Rd | 53 cfs | → |
| Spicket River At North Salem | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Epping Wastewater Lagoons.
Boat launches
- Squamscott River Boat Launch
- Pawtuckaway Pond Boat Launch
- Lamprey River Boat Launch
- Piscassic River Boat Launch
Campgrounds
- Remote Campsite
- Saddleback Campground
- Old Stage Campground
- Tidewater Campground
- Windham Town Forest Tent Platforms
- Salisbury State Park Reservation
Paddle runs
Track Epping Wastewater Lagoons 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 Epping Wastewater Lagoons
Where does the data for Epping Wastewater Lagoons 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 Significant 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 Epping Wastewater Lagoons.