Contrary Creek Arm of Lake Anna
Louisa County, VirginiaView mapDirections
Virginia DEQ publishes the water-quality measurements for Contrary Creek Arm of Lake Anna. Here is what has been measured.
- Impaired · Metals (other than mercury)
- Limited data
Contrary Creek Arm of Lake Anna in Louisa County, Virginia has water-quality measurements published by Virginia DEQ, shown here as reported. Water clarity: 3.3 ft visibility.
Contrary Creek Arm of Lake Anna is a lake in Louisa County, Virginia. Water clarity is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, Virginia DEQ, last sampled 2017-09-19. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Contrary Creek Arm of Lake Anna is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury), pH / acidity, pCBs. Check local advisories before you swim.
Whether Contrary Creek Arm of Lake Anna 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 Contrary Creek Arm of Lake Anna
These are the measurements Virginia DEQ publishes for Contrary Creek Arm of Lake Anna, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 3.3 ft of visibility. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.3ft | 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. | 60 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Contrary Creek Arm of Lake Anna
Water Quality Trend: Stable
Based on 4 years of monitoring (2012–2018).
Water clarity
Improving4 years
Phosphorus
Stable0 µg/L/yr2 years
Chlorophyll-a
Worsening+1.25 µg/L/yr2 years
EPA Impairment Status
Contrary Creek Arm of Lake Anna 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, Fish consumption, Other.
Source: EPA ATTAINS assessment unit VAN-F07L_CON02A08 · Official waterbody report
Nearby Lakes in Louisa County
Frequently asked questions about Contrary Creek Arm of Lake Anna
Where is Contrary Creek Arm of Lake Anna?
- Contrary Creek Arm of Lake Anna 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 Contrary Creek Arm of Lake Anna?
- Contrary Creek Arm of Lake Anna in Louisa County, Virginia has water-quality measurements published by Virginia DEQ, shown here as reported. Water clarity: 3.3 ft visibility.
Is Contrary Creek Arm of Lake Anna safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Contrary Creek Arm of Lake Anna is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury), pH / acidity, pCBs. Check local advisories before you swim.
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Where this data comes from
1 measurement from 1 monitoring station, 2017. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY
21VASWCB1 sample · 2017
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