What is the cleanest lake near Twin Lakes?

Lake Earl in Okaloosa County holds a Grade B water quality score and is 7.1 miles from Twin Lakes.

Why is Twin Lakes not Grade A?

Twin Lakes holds Grade F, with about 2 ft of water clarity and 520 µg/L of phosphorus. The grade reflects measured water quality against Metropolitan Council thresholds. Cleaner alternatives nearby score higher on clarity, phosphorus, or chlorophyll-a.

Are these recommendations based on real data?

Yes. Every grade is calculated from EPA Water Quality Portal samples for the lake. Recommendations are limited to lakes within 30 miles of Twin Lakes in Florida, with strictly higher numeric grade scores and sufficient monitoring data.

Cleaner Lakes Than Twin Lakes, Top 2 Within 30 Miles, LakeQuality

Cleaner Lakes Than Twin Lakes

2 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.

Twin Lakes carries a Grade F (Very Poor) water quality score. Within 30 miles, 2 lakes hold a higher grade. Lake Earl (Okaloosa County, Grade B, 7.1 mi away) is the closest meaningful upgrade.

Lake Earl

Okaloosa County, Florida · 7.1 mi from Twin Lakes

+Two grade letters higher (F → B)
++3.2 ft water clarity
+Lower phosphorus (17 vs 520 µg/L)

Twin Lake Eastern Lake

Okaloosa County, Florida · 0.2 mi from Twin Lakes

+Higher grade (F → D)
+Lower phosphorus (90 vs 520 µg/L)

Reading the cohort

Only 2 lakes within a 30-mile radius score better than Twin Lakes's Grade F. The narrow set of options reflects either a fairly clean lake to begin with or a region without a wide range of cleaner alternatives — the trip-planning decision is more constrained than the headline "cleaner lakes nearby" suggests.

Lake Earl (Okaloosa County, Grade B) is the closest cleaner option at 7.1 miles from Twin Lakes — close enough to be a genuine substitute for most users, far enough that it isn't the same neighborhood lake. Worth the trip if water quality is the primary driver; less obvious if Twin Lakes is on the way to other plans.

The EPA water-quality grading combines clarity (Secchi depth), phosphorus, and chlorophyll-a measurements from state environmental sampling. A higher letter grade reflects measurably cleaner water on those indicators, not subjective beauty or access quality — a Grade A lake might have worse boat-launch facilities or shoreline access than a Grade C neighbor, so the ranking is one input alongside the rest of trip planning. See the methodology page for the full grading formula.

How this list is built

Every lake on LakeQuality has a calculated grade from EPA Water Quality Portal samples — secchi depth, total phosphorus, and chlorophyll-a measured against Metropolitan Council thresholds. To suggest cleaner alternatives, we filter lakes within 30 miles to those with a strictly higher numeric score, then rank by grade improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.