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Hi3 Water

Massachusetts Water Assets

New England

Massachusetts manages water through the Water Management Act with glacial outwash aquifers serving as primary groundwater sources.

Regulated Riparian14 counties tracked2098 active alerts
60,259
Total Assets
49.6
Avg WIS
23,620
Verified
0
High WIS (75+)

Massachusetts Water Intelligence Report

Hi3 Water tracks 60,259 water assets across Massachusetts, spanning 14 counties and 5 distinct asset types. The average Water Intelligence Score (WIS) across Massachusetts is 49.6/100, with 0 assets scoring in the high-value range (75+). Massachusetts operates under Regulated Riparian water law, which directly affects water rights acquisition and asset valuation in this state.

The dominant water asset type in Massachusetts is Well (32,570 assets, avg WIS 41.2). The highest concentration is in Barnstable County with 6,767 tracked assets.

2,098 active regulatory alerts are currently tracked in Massachusetts, 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: June 29, 2026.

Asset Types in Massachusetts

Well
32,570
Avg WIS 41.2
River
23,380
Avg WIS 62.1
Lake
2,877
Avg WIS 42.0
Reservoir
1,341
Avg WIS 54.9
Spring
91
Avg WIS 40.4

Intelligence Grade Distribution

How Massachusetts assets are graded

S (≥90) — Exceptional0 (0.0%)
A (75-89) — Excellent0 (0.0%)
B (55-74) — Good20,094 (33.3%)
C (35-54) — Fair40,165 (66.7%)
D (<35) — Limited0 (0.0%)

Regulatory Alerts

Drought, EPA violations, and enforcement actions affecting Massachusetts

27
critical
41
high
2018
medium
12
low
0
info
SHAWSHEEN RIVER AT BALMORAL STREET AT ANDOVER, MA — Gage Height 24.4 ft
usgs_flood · flood_warning
MYSTIC R AT AMELIA EARHART DAM NR SOMERVILLE, MA — Gage Height 105.4 ft
usgs_flood · flood_warning
MERRIMACK RIVER BL CONCORD RIVER AT LOWELL, MA — Gage Height 45.2 ft
usgs_flood · flood_warning

Top Counties in Massachusetts

Barnstable
6,767 assetsWIS 43
Plymouth
5,313 assetsWIS 41
Worcester
4,845 assetsWIS 41
Middlesex
4,671 assetsWIS 41
Bristol
3,123 assetsWIS 40
Norfolk
1,745 assetsWIS 40
Essex
1,599 assetsWIS 40
Berkshire
1,255 assetsWIS 41
Hampden
1,153 assetsWIS 41
Franklin
939 assetsWIS 41
Hampshire
622 assetsWIS 41
Nantucket
304 assetsWIS 41

Aquifer Type Mix

unconfined
5,587
Avg WIS 44
confined
624
Avg WIS 50

Top 10 Water Assets in Massachusetts

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

View all on map
  1. 1

    Fife Brook

    Reservoir
    ·33,168,611 GPM
    67
    WIS
  2. 2

    City Stream

    River
    ·5,072 GPM
    67
    WIS
  3. 3

    Rake Branch

    River
    ·7,691 GPM
    67
    WIS
  4. 4

    West Branch Deerfield River

    River
    ·2,322 GPM
    67
    WIS
  5. 5

    Littleville Dam

    Reservoir
    ·41,292,452 GPM
    67
    WIS
  6. 6

    Sherman

    Reservoir
    ·39,048,297 GPM
    67
    WIS
  7. 7

    Knightville Dam

    Reservoir
    ·37,252,973 GPM
    67
    WIS
  8. 8

    Yaw Pond Brook

    River
    ·1,967 GPM
    67
    WIS
  9. 9

    Red Mill Pond Brook

    River
    ·3,808 GPM
    67
    WIS
  10. 10

    Roaring Branch

    River
    ·1,715 GPM
    67
    WIS
Avg Flow Rate
158,894 GPM
Avg Depth
93 ft
For Sale
0
Fossil Water
0

Explore Massachusetts on the Interactive Map

View all 60,259 water assets, aquifer boundaries, water rights data, and regulatory alerts for Massachusetts.

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