Motts Run Reservoir is a cold, clear oligotrophic lake in Spotsylvania County, Virginia. Water quality is graded A based on 2 sampling years through 2022. Compared to the 17 other monitored lakes in Spotsylvania County, Motts Run Reservoir ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Virginia DNR, last sampled 2022-10-20. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 10.2 ft. Phosphorus level: 10 µg/L. Chlorophyll-a: 2.3 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.2 ft | B |
| Phosphorus | 10 µg/L | A |
| Chlorophyll-a (Algae) | 2.3 µg/L | A |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Motts Run Reservoir
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Fishing Motts Run Reservoir
Location
County Ranking
Ranked #2 of 18 lakes in Spotsylvania County
Nearby Lakes in Spotsylvania County
Explore Motts Run Reservoir across LakeGrade
More Virginia Lake Rankings
Other Grade A Lakes in Virginia
Stafford County · Clarity: 9.2 ft
Stafford County · Clarity: 8.7 ft
Stafford County · Clarity: 8.2 ft
Stafford County · Excellent
Loudoun County · Clarity: 4.9 ft
Loudoun County · Clarity: 5.4 ft
Oligotrophic Lakes in Virginia
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-10-20
Monitoring stations: 2