croton watershed
1.0
57979
new york city water supply
0.81
57006
catskill aqueduct
0.6
57908
kensico reservoir
0.56
58003
los angeles aqueduct
0.56
57480
national wild and scenic rivers
0.56
56260
new york state barge canal
0.56
57692
shubenacadie canal
0.54
58003
great lakes basin
0.53
54671
los angeles county metro rail
0.53
57961
delaware aqueduct
0.52
57950
seventh-day adventist education
0.52
56303
minnesota state colleges and universities
0.52
57604
lower harz
0.51
57660
outfall
0.51
52137
sewer
0.5
18980
trent-severn waterway
0.49
57794
irrigation district
0.49
56056
verkhoyansk range
0.49
57496
columbia river basin
0.48
57513
wachusett reservoir
0.48
57469
waterworks
0.48
38765
raquette river
0.48
57369
renin-angiotensin
0.48
57977
metrohealth
0.48
57979
chain of lakes
0.48
57491
cutzamala
0.48
58003
cochituate
0.48
57509
lerma river
0.47
56599
east bay municipal utility district
0.47
57465
oso creek
0.47
57908
central valley project
0.47
57012
colorado river aqueduct
0.47
55807
sacandaga river
0.47
57615
river system
0.47
57264
mississippi river watershed
0.47
56846
fishkill creek
0.47
57753
hudson bay watershed
0.47
57961
palisades interstate park
0.47
57950
kolkata suburban railway
0.47
51300
subwatershed
0.47
57660
san joaquin river
0.47
53918
sewerage
0.47
34776
hudson bay drainage basin
0.46
56100
murray-darling basin
0.46
57686
winnipeg river
0.46
55373
skaneateles lake
0.46
57783
bull run river
0.46
57736
eighteen mile creek
0.46
57991
ashokan reservoir
0.46
57979
st. mary river
0.46
57991
santa ana river
0.45
53191
district of columbia public library
0.45
57795
waitaki river
0.45
56828
tioughnioga river
0.45
57870
aqueduct
0.45
23558
washington aqueduct
0.45
57842
columbia basin project
0.45
57937
quabbin
0.45
57934
untersee
0.45
57964
tarim river
0.45
57454
gouin reservoir
0.45
57338