Northeast Reservoir
Louisa County, Virginia187 acresView mapDirections
Virginia DEQ publishes the water-quality measurements for Northeast Reservoir. Here is what has been measured.
- Impaired · Oxygen depletion (low DO)
- Limited data
Northeast Reservoir in Louisa County, Virginia has water-quality measurements published by Virginia DEQ, shown here as reported. Water clarity: 5.9 ft visibility. Surface area: 187 acres.
Northeast Reservoir is a 187-acre lake in Louisa County, Virginia.
Source: EPA Water Quality Portal sampling records, Virginia DEQ, last sampled 2024-10-08. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Northeast Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
Whether Northeast Reservoir is safe to swim in today is a call for the Virginia Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Northeast Reservoir
These are the measurements Virginia DEQ publishes for Northeast Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5.9 ft. TSI 52.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 52 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Northeast Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
187 acres
No bathymetric survey has been published for Northeast Reservoir, so its depth is not documented here.
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Fishing Northeast Reservoir
Water Quality Trend: Stable
Based on 6 years of monitoring (2012–2025).
Water clarity
Stable6 years
Phosphorus
Stable+0.33 µg/L/yr6 years
Chlorophyll-a
Stable0 µg/L/yr6 years
Reservoir Info (USACE NID)
Northeast Reservoir is a man-made reservoir impounded by the South Anna Dam #22, built primarily for water supply on the Northeast Creek; earth-type dam, 37 ft tall and 1,600 ft long.
- Surface area
- 187 ac
- Normal storage
- 1,886 ac-ft
- Max storage
- 5,313 ac-ft
- Drainage area
- 9.73 sq mi
- Hazard class
- High
- Owner
- Louisa County Water Authorty
All listed purposes: Water Supply;Flood Risk Reduction.
Source: USACE National Inventory of Dams, NID ID VA109034 · Operator website · Matched by proximity (0.11 km)
EPA Impairment Status
Northeast Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit VAN-F02L_NTH01A06 · Official waterbody report
Nearby Lakes in Louisa County
Frequently asked questions about Northeast Reservoir
Where is Northeast Reservoir?
- Northeast Reservoir is a lake in Louisa County, Virginia. Its water-quality measurements are published by Virginia DEQ and shown on this page as reported.
What is the water quality of Northeast Reservoir?
- Northeast Reservoir in Louisa County, Virginia has water-quality measurements published by Virginia DEQ, shown here as reported. Water clarity: 5.9 ft visibility. Surface area: 187 acres.
Is Northeast Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Northeast Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
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Where this data comes from
3 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY
21VASWCB3 samples · 2024
Analytical methods
- Tyler, John. 1968. The secchi disk, Limnology and Oceanograpy, 13(1):1-6.
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database