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Hi3 Water

Arkansas Water Assets

South Central

Arkansas sits atop the Sparta and Alluvial aquifers, with the Mississippi Embayment providing extensive groundwater resources for agriculture.

Riparian75 counties tracked2193 active alerts
111,354
Total Assets
52.6
Avg WIS
51,763
Verified
1
High WIS (75+)

Arkansas Water Intelligence Report

Hi3 Water tracks 111,354 water assets across Arkansas, spanning 75 counties and 6 distinct asset types. The average Water Intelligence Score (WIS) across Arkansas is 52.6/100, with 1 assets scoring in the high-value range (75+). Arkansas operates under Riparian water law, which directly affects water rights acquisition and asset valuation in this state.

The dominant water asset type in Arkansas is Well (59,014 assets, avg WIS 42.4). The highest concentration is in Craighead County with 3,493 tracked assets.

2,193 active regulatory alerts are currently tracked in Arkansas, including EPA violations, drought declarations, and state water board enforcement actions. Always check the regulatory intelligence for any asset before making acquisition decisions.

Data sources: USGS Water Data, EPA ECHO, state water boards, and verified field reports. Water Intelligence Scores are computed across flow rate, geological stability, legal accessibility, sustainability, and rarity. Report last updated: August 23, 2026.

Asset Types in Arkansas

Well
59,014
Avg WIS 42.4
River
49,884
Avg WIS 64.8
Reservoir
1,254
Avg WIS 60.7
Spring
1,200
Avg WIS 42.1
Aquifer
1
Avg WIS 71.0
Fossil Water
1
Avg WIS 77.0

Intelligence Grade Distribution

How Arkansas assets are graded

S (≥90) — Exceptional0 (0.0%)
A (75-89) — Excellent1 (0.0%)
B (55-74) — Good50,839 (45.7%)
C (35-54) — Fair60,514 (54.3%)
D (<35) — Limited0 (0.0%)

Regulatory Alerts

Drought, EPA violations, and enforcement actions affecting Arkansas

114
critical
26
high
2025
medium
28
low
0
info
Lake Catherine at Jones Mill, AR — Gage Height 303.9 ft
usgs_flood · flood_warning
Ouachita River at Camden, AR — Gage Height 10.8 ft
usgs_flood · flood_warning
Red River at Spring Bank, AR — Gage Height 14.5 ft
usgs_flood · flood_warning

Top Counties in Arkansas

Craighead
3,493 assetsWIS 43
Lonoke
3,291 assetsWIS 43
Arkansas
2,929 assetsWIS 43
Jackson
2,866 assetsWIS 42
Poinsett
2,841 assetsWIS 43
Woodruff
2,635 assetsWIS 42
Cross
2,602 assetsWIS 42
Clay
2,374 assetsWIS 42
Desha
2,370 assetsWIS 41
Prairie
2,331 assetsWIS 43
Monroe
2,267 assetsWIS 43
Jefferson
2,248 assetsWIS 42

Aquifer Type Mix

unconfined
2,814
Avg WIS 45
confined
1,655
Avg WIS 53
fossil
1
Avg WIS 77

Top 10 Water Assets in Arkansas

Ranked by Water Intelligence Score — Arkansas's highest-scoring springs, wells, and aquifers.

View all on map
  1. 1

    Nacatoch Sand Deep Fossil Aquifer — Southwest Arkansas

    Fossil Water
    Hempstead County·200 GPM
    77
    WIS
  2. 2

    Arkansas River Alluvial Aquifer — Eastern Arkansas

    Aquifer
    Arkansas County·2,000 GPM
    71
    WIS
  3. 3

    Blue Mountain Dam

    Reservoir
    ·34,245,805 GPM
    67
    WIS
  4. 4

    Beaver Dam

    Reservoir
    ·50,000,000 GPM
    67
    WIS
  5. 5

    Bull Shoals Dam

    Reservoir
    ·50,000,000 GPM
    67
    WIS
  6. 6

    Lake Lago Dam

    Reservoir
    ·2,468,571 GPM
    67
    WIS
  7. 7

    Little Flint Creek Dam

    Reservoir
    ·24,685,705 GPM
    67
    WIS
  8. 8

    Narrows Dam

    Reservoir
    ·18,985,551 GPM
    67
    WIS
  9. 9

    Blakely Mountain Dam

    Reservoir
    ·20,197,395 GPM
    67
    WIS
  10. 10

    Gillham Dam

    Reservoir
    ·50,000,000 GPM
    67
    WIS
Avg Flow Rate
761,663 GPM
Avg Depth
153 ft
For Sale
0
Fossil Water
1

Explore Arkansas on the Interactive Map

View all 111,354 water assets, aquifer boundaries, water rights data, and regulatory alerts for Arkansas.

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