Table Rock L. @ Mouth of James R. Arm Lake
- +Two grade letters higher (F → B)
- ++5.3 ft water clarity
- +Lower phosphorus (11.5 vs 61.5 µg/L)
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Table Rock L. @ Hampton Hollow Lake carries a Grade F (Very Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Table Rock L. @ Mouth of James R. Arm Lake (Stone County, Grade B, 10.4 mi away) is the closest meaningful upgrade.
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.