1
Flint River Reservoir
Dougherty County, Georgia · 20.1 mi from Lake Blackshear
Cleaner Lakes Than Lake Blackshear
2 lakes with lower nutrient and algae readings within 30 miles, ranked by the size of the improvement and by proximity.
Lake Blackshear carries nutrient and algae readings on record. Within 30 miles, 2 lakes read lower. Flint River Reservoir (Dougherty County, 20.1 mi away) is the closest meaningful upgrade.
Reviewed by LakeQuality Editorial Team · Updated
2
Lake Worth
Dougherty County, Georgia · 20.5 mi from Lake Blackshear
Stays via Stay22
Where to stay near Lake Blackshear
Compare cabins, hotels, and vacation rentals around Lake Blackshear in Georgia. The 2 lakes above sit within 30 miles, so one base reaches them all. Switch the map to Satellite to see how close each stay is to the water.
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Reading the cohort
Only 2 lakes within a 30-mile radius read cleaner than Lake Blackshear on nutrients and algae. The narrow set of options reflects either a fairly clean lake to begin with or a region without a wide range of cleaner alternatives, so the trip-planning decision is more constrained than the headline "cleaner lakes nearby" suggests.
The nearest cleaner alternative — Flint River Reservoir in Dougherty County — sits 20.1 miles from Lake Blackshear, putting it firmly in "destination trip" rather than "neighborhood swap" range. The water-quality gap has to be the deciding factor; for a casual outing, Lake Blackshear is the practical choice and the cleaner options are reserved for purpose-specific visits.
Each lake's nutrient and algae readings — total phosphorus, total nitrogen, chlorophyll-a, and turbidity — are shown beside the EPA National Lakes Assessment 2022 condition class for that lake's own ecoregion, so a reading is compared against the lakes it would naturally resemble. LakeQuality publishes no letter grade. Lower readings mean measurably less nutrient and algae in the water, not better scenery or access: the lake with the clearest, lowest-nutrient water can have worse boat-launch facilities or shoreline access than a neighbor, so the comparison is one input alongside the rest of trip planning. How the readings are classified is on our methodology page.
How this list is built
Sampled lakes on LakeQuality carry readings from EPA Water Quality Portal samples — nutrients and algae measured against EPA National Lakes Assessment ecoregion classes. Secchi is shown, not scored. To suggest cleaner alternatives, we filter lakes within 30 miles to those with strictly lower nutrient and algae readings, then rank by the size of the improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.