Skip to main content
Hi3 Water

Wisconsin Water Assets

Upper Midwest

Wisconsin has productive sandstone and glacial aquifers, extensive Great Lakes shoreline, and is addressing emerging groundwater quantity concerns.

Reasonable Use72 counties tracked2216 active alerts
82,324
Total Assets
48.6
Avg WIS
11,670
Verified
1
High WIS (75+)

Wisconsin Water Intelligence Report

Hi3 Water tracks 82,324 water assets across Wisconsin, spanning 72 counties and 6 distinct asset types. The average Water Intelligence Score (WIS) across Wisconsin is 48.6/100, with 1 assets scoring in the high-value range (75+). Wisconsin operates under Reasonable Use water law, which directly affects water rights acquisition and asset valuation in this state.

The dominant water asset type in Wisconsin is Well (70,602 assets, avg WIS 46.0). The highest concentration is in Dane County with 12,284 tracked assets.

2,216 active regulatory alerts are currently tracked in Wisconsin, 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: October 16, 2026.

Asset Types in Wisconsin

Well
70,602
Avg WIS 46.0
River
10,399
Avg WIS 64.7
Reservoir
955
Avg WIS 63.5
Lake
315
Avg WIS 42.0
Spring
52
Avg WIS 39.4
Fossil Water
1
Avg WIS 77.0

Intelligence Grade Distribution

How Wisconsin assets are graded

S (≥90) — Exceptional0 (0.0%)
A (75-89) — Excellent1 (0.0%)
B (55-74) — Good11,225 (13.6%)
C (35-54) — Fair71,098 (86.4%)
D (<35) — Limited0 (0.0%)

Regulatory Alerts

Drought, EPA violations, and enforcement actions affecting Wisconsin

46
critical
41
high
2029
medium
100
low
0
info
Hazardous Waste Facility: Nalco Co Expera Specialty Solutions
epa_rcra · hazardous_waste
Hazardous Waste Facility: Alliance Laundry Systems Llc
epa_rcra · hazardous_waste
Hazardous Waste Facility: Oregon School Dist
epa_rcra · hazardous_waste

Top Counties in Wisconsin

Dane
12,284 assetsWIS 48
Brown
7,237 assetsWIS 47
Chippewa
6,345 assetsWIS 48
Columbia
5,163 assetsWIS 47
Clark
3,888 assetsWIS 47
Barron
3,664 assetsWIS 47
Adams
3,320 assetsWIS 47
Bayfield
2,561 assetsWIS 48
Burnett
2,105 assetsWIS 46
Calumet
1,911 assetsWIS 48
Buffalo
1,405 assetsWIS 48
Ashland
1,317 assetsWIS 47

Aquifer Type Mix

unconfined
1,278
Avg WIS 44
confined
120
Avg WIS 53
fossil
1
Avg WIS 77

Top 10 Water Assets in Wisconsin

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

View all on map
  1. 1

    Mount Simon Sandstone Fossil Aquifer — Southern Wisconsin

    Fossil Water
    Waukesha County·250 GPM
    77
    WIS
  2. 2

    Plum Creek 3

    Reservoir
    ·54,309 GPM
    66
    WIS
  3. 3

    Bad Axe 34

    Reservoir
    ·166,067 GPM
    66
    WIS
  4. 4

    Twin Parks 12

    Reservoir
    ·278,275 GPM
    66
    WIS
  5. 5

    Plain Honey Creek 2

    Reservoir
    ·448,831 GPM
    66
    WIS
  6. 6

    Verley, Ray

    Reservoir
    ·42,190 GPM
    66
    WIS
  7. 7

    Klinkner

    Reservoir
    ·114,452 GPM
    66
    WIS
  8. 8

    Springwater Dam

    Reservoir
    ·70,018 GPM
    66
    WIS
  9. 9

    Eau Pleine

    Reservoir
    ·9,320,873 GPM
    66
    WIS
  10. 10

    Garden Valley 10

    Reservoir
    ·2,792,626 GPM
    66
    WIS
Avg Flow Rate
297,550 GPM
Avg Depth
179 ft
For Sale
0
Fossil Water
1

Explore Wisconsin on the Interactive Map

View all 82,324 water assets, aquifer boundaries, water rights data, and regulatory alerts for Wisconsin.

Open Map Market Analytics