Lunga Reservoir
Stafford County, Virginia474 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- 49 ft max depth
- Limited data
Lunga Reservoir in Stafford County, Virginia is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 474 acres.
- Max depth
- ~49 ft est.
- Area
- 474 acres
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Watch Lunga Reservoir’s letter
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Why Lunga Reservoir has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lunga Reservoir, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by Virginia DEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lunga Reservoir is a 474-acre lake in Stafford County, Virginia with an estimated average depth of about 49 feet.
Source: EPA Water Quality Portal sampling records, Virginia DEQ, last sampled 2021-12-07. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Lunga Reservoir
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~49 ft est. |
| Average Depth | ~28 ft est. |
| Surface Area | 474 acres |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Virginia has not published bathymetry for Lunga Reservoir.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Fishing Lunga Reservoir
Reservoir Info (USACE NID)
Lunga Reservoir is a man-made reservoir impounded by the Lunga Dam (completed 1956), built primarily for recreation on the Beaverdam Run; earth-type dam, 59 ft tall and 1,300 ft long.
- Surface area
- 474 ac
- Normal storage
- 5,200 ac-ft
- Max storage
- 12,800 ac-ft
- Drainage area
- 10.8 sq mi
- Hazard class
- High
- Owner
- DOD USMC
All listed purposes: Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID VA179001 · Operator website
Graded lakes near Lunga Reservoir
Lunga Reservoir has no grade, but these lakes within a short drive do.
Nearby Lakes in Stafford County
Frequently asked questions about Lunga Reservoir
Where is Lunga Reservoir?
- Lunga Reservoir is a lake in Stafford County, Virginia. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Lunga Reservoir?
- Lunga Reservoir in Stafford County, Virginia is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 474 acres.
Is Lunga Reservoir safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Lunga Reservoir?
- No published bathymetric survey covers Lunga Reservoir, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 49 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 474 acres.
Explore Lunga Reservoir across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY
21VASWCB2 samples · 2021
Analytical methods
- Total Phosphorus After Block Digestion
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)