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LakeQuality
D

Montague County Lake Quality

Texas, 1 lakes, average grade D (Poor)

Only 1 lakes in Montague County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. The county-wide average grade is D — water quality issues are persistent across most of the monitored basins. 0 lakes fall into the F bracket outright.

Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Lake Amon G Carter (D) is the cleanest in the county.

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All Lakes in Montague County

RankLakeGradeClarityPhosphorus
1Lake Amon G CarterD2.3 ft40 µg/L

See how Montague County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 17 states.

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Source: EPA National Aquatic Resource Surveys, 2026.