8537121_waterlevel_1min11CO-OPS station 8537121: SHIP JOHN SHOAL, DELAWARE RIVER 1-minute Raw Tsunami Water Level Data (ID: boundingGeographicBoundingBox) Coastal Tide Gauge Network of the United States and Its Territories at E: -75.375, W: -75.375, N: 39.305, S: 39.305#footprint-75.375,39.305 -75.375,39.305 -75.375,39.305 -75.375,39.305 -75.375,39.305