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Hi3 Water

New York Water Assets

Northeast

New York's water resources include the Catskill/Delaware reservoir system, Long Island sole-source aquifer, and extensive Great Lakes frontage.

Reasonable Use63 counties tracked2234 active alerts
113,614
Total Assets
49.1
Avg WIS
40,486
Verified
1
High WIS (75+)

New York Water Intelligence Report

Hi3 Water tracks 113,614 water assets across New York, spanning 63 counties and 7 distinct asset types. The average Water Intelligence Score (WIS) across New York is 49.1/100, with 1 assets scoring in the high-value range (75+). New York operates under Reasonable Use water law, which directly affects water rights acquisition and asset valuation in this state.

The dominant water asset type in New York is Well (72,634 assets, avg WIS 41.0). The highest concentration is in Nassau County with 5,682 tracked assets.

2,234 active regulatory alerts are currently tracked in New York, 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 15, 2026.

Asset Types in New York

Well
72,634
Avg WIS 41.0
River
37,045
Avg WIS 64.8
Reservoir
1,902
Avg WIS 57.7
Lake
1,100
Avg WIS 42.0
Spring
931
Avg WIS 40.8
Aquifer
1
Avg WIS 73.0
Fossil Water
1
Avg WIS 80.0

Intelligence Grade Distribution

How New York assets are graded

S (≥90) — Exceptional0 (0.0%)
A (75-89) — Excellent1 (0.0%)
B (55-74) — Good38,178 (33.6%)
C (35-54) — Fair75,435 (66.4%)
D (<35) — Limited0 (0.0%)

Regulatory Alerts

Drought, EPA violations, and enforcement actions affecting New York

5
critical
116
high
2049
medium
64
low
0
info
MOHAWK R ABOVE STATE HIGHWAY 30A AT FONDA NY — Gage Height 20.2 ft
usgs_flood · flood_warning
HUDSON RIVER AT LOCK 1 NEAR WATERFORD NY — Gage Height 30.0 ft
usgs_flood · flood_warning
HUDSON RIVER ABOVE LOCK 1 NEAR WATERFORD NY — Gage Height 30.1 ft
usgs_flood · flood_warning

Top Counties in New York

Nassau
5,682 assetsWIS 43
Suffolk
5,159 assetsWIS 42
Monroe
4,745 assetsWIS 40
Westchester
3,773 assetsWIS 40
Dutchess
3,671 assetsWIS 40
Orange
2,292 assetsWIS 41
Tompkins
2,141 assetsWIS 41
Ulster
2,016 assetsWIS 41
Rensselaer
1,861 assetsWIS 43
Chautauqua
1,755 assetsWIS 41
Erie
1,752 assetsWIS 40
Broome
1,668 assetsWIS 41

Aquifer Type Mix

unconfined
2,031
Avg WIS 44
confined
1,326
Avg WIS 52
fossil
1
Avg WIS 80

Top 10 Water Assets in New York

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

View all on map
  1. 1

    Magothy Aquifer Fossil Water — Long Island

    Fossil Water
    Suffolk County·1,000 GPM
    80
    WIS
  2. 2

    New York Sandstone Aquifer — Southern Tier

    Aquifer
    Broome County·100 GPM
    73
    WIS
  3. 3

    Mount Morris Dam

    Reservoir
    ·50,000,000 GPM
    67
    WIS
  4. 4

    Dry Brook

    River
    ·6,635 GPM
    67
    WIS
  5. 5

    Blenheim - Gilboa Upper

    Reservoir
    ·4,578,076 GPM
    67
    WIS
  6. 6

    Bear Gulch Pond Dam

    Reservoir
    ·195,690 GPM
    67
    WIS
  7. 7

    Little Delaware River

    River
    ·2,905 GPM
    67
    WIS
  8. 8

    Metcalf Brook

    River
    ·8,299 GPM
    67
    WIS
  9. 9

    Threemile Run

    River
    ·1,242 GPM
    67
    WIS
  10. 10

    Deerfield River

    River
    ·2,169 GPM
    67
    WIS
Avg Flow Rate
613,881 GPM
Avg Depth
159 ft
For Sale
0
Fossil Water
1

Explore New York on the Interactive Map

View all 113,614 water assets, aquifer boundaries, water rights data, and regulatory alerts for New York.

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