Benton County Lake Quality
Arkansas, 13 lakes, measured by Arkansas DEQ
Benton County holds 13 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. 3 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Phosphorus and algae readings vary widely across Benton County; the per-lake pages below carry the numbers.
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. Beaver Lake has the lowest nutrient and algae readings in the county.
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Quick Answers for Benton County
Planning a trip? Check special fishing regulations for Beaver Lake — or check the official Arkansas fishing regulations.
All Lakes in Benton County
13 lakes · 3 ranked on readings, 10 without enough sampling3 lakes ranked on readings · 10 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| 1 | Beaver LakeBenton | 4.6 ft | 23 µg/L | 9.1 µg/L | No recent samples | ✓ Public |
| 2 | Siloam Springs LakeBenton | No recent samples | 70 µg/L | 34.4 µg/L | No recent samples | Not recorded |
| 3 | Crystal LakeBenton | No recent samples | 40 µg/L | 35.3 µg/L | No recent samples | Not recorded |
| Partners Lake_spillwayBenton | 7.5 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lake AtalantaBenton | 6.5 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| Swepco LakeBenton | No recent samples | 70.5 µg/L | 25.5 µg/L | No recent samples | Not recorded | |
| Lake AnnBenton | No recent samples | 22 µg/L | 5.8 µg/L | No recent samples | Not recorded | |
| Lake WindsorBenton | No recent samples | 29 µg/L | 9.1 µg/L | No recent samples | ✓ Public | |
| Lake AvalonBenton | No recent samples | 27 µg/L | 17.5 µg/L | No recent samples | ✓ Public | |
| Norwood LakeBenton | No recent samples | 20 µg/L | 8 µg/L | No recent samples | Not recorded | |
| Loch Lomond LakeBenton | No recent samples | 20 µg/L | 8.5 µg/L | No recent samples | ✓ Public | |
| Lake BrittanyBenton | No recent samples | 20 µg/L | 4.8 µg/L | No recent samples | Not recorded | |
| Lake RayburnBenton | No recent samples | 21 µg/L | 6.6 µg/L | No recent samples | Not recorded |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the Arkansas Division of Environmental Quality. See data sources.