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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.

Hydrological Unit: Delaware Bay

HUC Name
0204020400 Delaware River-Delaware Bay
Monitoring Locations
Site number Name Site type
01411409 Delaware Bay at Reeds Beach NJ Estuary
01412350 Delaware Bay at Ship John Shoal Lighthouse NJ Stream
01477830 DELAWARE R AB MOUTH OF CHRISTINA R NJ Stream
01482100 DELAWARE RIVER AT DEL MEM BRIDGE AT WILMINGTON DE Tidal stream
01483650 FORK BRANCH AT DUPONT, DE Stream
01484450 DELAWARE BAY NEAR LEWES DE Estuary
385522075251802 Le55-09 Well
385525075344201 Ld51-01 Well
385619075062701 Delaware Bay at mi 7.0 nr Milford DE -offboat Estuary
385619075062702 Delaware Bay at mi 7.0 nr Milford DE -onboat Estuary
390015075344301 Kd51-05 Well
390203075093001 Delaware Bay at mi14.0 nr Thompsonville DE-offboat Estuary
390203075093002 Delaware Bay at mi 14.0 nr Thompsonville DE-onboat Estuary
390410075340601 Kd11-08 Well
390617075261901 Je55-01 Well
390619075290901 Je41-08 Well
390701075125201 Delaware Bay at mi 20.5 nr Port Norris NJ -offboat Estuary
390701075125202 Delaware Bay at mi 20.5 nr Port Norris NJ -onboat Estuary
390734075291501 Je31-02 Well
390740075285902 Je32-05 Well
390741075290201 Je31-01 Well
390742075290201 Je32-04 Well
391043075160901 Delaware Bay at mi 26.0 nr Dover DE -offboat Estuary
391043075160902 Delaware Bay at mi 26.0 nr Dover DE -onboat Estuary
391457075191501 Delaware Bay at mi 32.5 nr Newport NJ -offboat Estuary
391457075191502 Delaware Bay at mi 32.5 nr Newport NJ -onboat Estuary
391815075230601 Delaware Bay at mi 37.0 nr Cedarville NJ -offboat Estuary
391815075230602 Delaware Bay at mi 37.0 nr Cedarville NJ -onboat Estuary
392126075263801 Delaware Bay at mi 42.0 near Greenwich NJ -offboat Estuary
392126075263802 Delaware Bay at mi 42.0 near Greenwich NJ -onboat Estuary
392410075300001 Delaware Bay at mi 46.0 near Smyrna DE -offboat Estuary
392410075300002 Delaware Bay at mi 46.0 near Smyrna DE -onboat Estuary
394123075305901 Delaware River at river mi 68.98 nr Deepwater NJ Estuary