Stations are listed from source to mouth as the water flows, traced on the river map (OS Open Rivers) and the Environment Agency’s own links between its gauges. A distance “by river” is along the river, and is shown only where the map traces the path.
Streams and rivers with a gauge whose water joins the Esk (Lothian) above one of its gauges, from the source down. The river map knows where gauges are, not every stream, so a tributary without a gauge is not listed here.
20 storm overflows are traced upstream of Musselburgh, the Esk (Lothian)’s lowest gauge on the river map: on the Esk (Lothian) itself, on its gauged tributaries, and on smaller streams that join above there.
0 report discharging now
18 not discharging
2 offline or silent: 2 monitor offline, 0 status unknown, 0 no live feed
Official figures for 2025, for the overflows traced upstream of Musselburgh: 2,668 overflow events over 2,268 hours in total, across the 14 that have a figure. 6 have no 2025 figure. Scottish Water counts overflow events, not the 12/24-hour spills counted in England and Wales, so this total cannot be set beside theirs.
Each overflow is listed in the stretch above the first gauge its water reaches, from the source down, as on the Gauges tab. A stretch of the Esk (Lothian) includes the smaller streams that join it there.
Above Musselburgh, the Esk (Lothian)’s highest gauge13 overflows
Caerketton Avenue CSO 1 Nt262647Not discharging Scottish Water · into Bilston Burn · 17.5 km by river above Musselburgh · 2025: 2 overflow events, 7.7 h
Caerketton Avenue CSO 2 Nt263646Not discharging Scottish Water · into Bilston Burn · 17.5 km by river above Musselburgh · no official annual figure
Polton, Polton Village SPS CSOMonitor offline Scottish Water · into River North Esk · 14.3 km by river above Musselburgh · 2025: 1 overflow event, 5.1 h
Lasswade SPS EONot discharging Scottish Water · into River North Esk · 12.0 km by river above Musselburgh · 2025: 0 overflow events, 0 h
Lasswade, 18 High Street CSONot discharging Scottish Water · into River North Esk · 11.8 km by river above Musselburgh · 2025: 76 overflow events, 206 h
Dalkeith, Gilmerton Rd/Elginhaugh CSONot discharging Scottish Water · into River North Esk · 8.7 km by river above Musselburgh · 2025: 2,255 overflow events, 581 h
Dalkeith, Ironmills Road CSONot discharging Scottish Water · into River North Esk · 7.7 km by river above Musselburgh · no official annual figure
Dalkeith, Ironmills SPS CSONot discharging Scottish Water · into River North Esk · 7.7 km by river above Musselburgh · 2025: 0 overflow events, 0 h
Dalkeith, Wheatsheaf Lane CSONot discharging Scottish Water · into River South Esk · 7.7 km by river above Musselburgh · 2025: 50 overflow events, 33 h
Dalkeith Lugton CSO Nt329675Not discharging Scottish Water · into River North Esk · 7.6 km by river above Musselburgh · 2025: 1 overflow event, 0.2 h
Dalkeith, 18 Bevan Lee Court CSONot discharging Scottish Water · into River South Esk · 7.6 km by river above Musselburgh · 2025: 66 overflow events, 26 h
Musselburgh, 15 Wedderburn Terrace CSONot discharging Scottish Water · into River Esk · 1.7 km by river above Musselburgh · 2025: 2 overflow events, 0.3 h
North Esk (Lothian), above Dalmorejoins the Esk (Lothian) above Musselburgh2 overflows
Bankmill View Wwps EONot discharging Scottish Water · into River North Esk · 3.4 km by river above Dalmore · no official annual figure
Penicuik, Kirkhill CSONot discharging Scottish Water · into River North Esk · 1.9 km by river above Dalmore · 2025: 0 overflow events, 0 h
South Esk (Lothian), above Cowbridgejoins the Esk (Lothian) above Musselburgh5 overflows
Gorebridge WwTW SssoNot discharging Scottish Water · into Gore Water · 9.5 km by river above Cowbridge · 2025: 76 overflow events, 742 h
Rosewell WwTW SssoNot discharging Scottish Water · into Shiel Burn · 9.3 km by river above Cowbridge · 2025: 39 overflow events, 352 h
Bonnyrigg, Durham Grove 40679 CSONot discharging Scottish Water · into Pittendriech Burn · 4.5 km by river above Cowbridge · no official annual figure
Bonnyrigg (Esk Valley) CSONot discharging Scottish Water · into River South Esk · 3.5 km by river above Cowbridge · 2025: 100 overflow events, 314 h
Within 3 km of one of the Esk (Lothian)’s gauges in a straight line, but the river map cannot say whether their water reaches it.
Musselburgh, Olive Bank Rd/Eskview TerrNot discharging Scottish Water · into River Esk · 50 m from Musselburgh in a straight line · too close to Musselburgh to say which side · 2025: 8 overflow events, 4.1 h
Musselburgh, Campie Rd/Eskside West CSONot discharging Scottish Water · into River Esk · 70 m from Musselburgh in a straight line · too close to Musselburgh to say which side · 2025: 16 overflow events, 12 h
Musselburgh, North High Street CSONot discharging Scottish Water · into River Esk · 710 m from Musselburgh in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 20 overflow events, 27 h
Musselburgh, Eskside East CSONot discharging Scottish Water · into River Esk · 730 m from Musselburgh in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 1 overflow event, 0.3 h
Musselburgh, Goose Green Crescent CSONot discharging Scottish Water · into River Esk · 1.2 km from Musselburgh in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 6 overflow events, 14 h
Musselburgh, 2 Millhill Lane CSONot discharging Scottish Water · into River Esk · 1.2 km from Musselburgh in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 4 overflow events, 2.8 h
Musselburgh, Esk SPS CSOMonitor offline Scottish Water · into Firth Of Forth · 1.3 km from Musselburgh in a straight line · discharges to the sea, an estuary or tidal water · 2025: 115 overflow events, 277 h
Musselburgh, Eastfield SPS CSONot discharging Scottish Water · into Firth Of Forth · 1.3 km from Musselburgh in a straight line · discharges to the sea, an estuary or tidal water · 2025: 0 overflow events, 0 h
Joppa, Joppa SPS CSONot discharging Scottish Water · into Firth Of Forth · 2.2 km from Musselburgh in a straight line · discharges to the sea, an estuary or tidal water · 2025: 30 overflow events, 249 h
Wallyford, 22 Drummohr Avenue CSONot discharging Scottish Water · into Ravensheugh Burn · 2.5 km from Musselburgh in a straight line · its watercourse is not on the river map · no official annual figure
Musselburgh, Levenhall SPS CSONot discharging Scottish Water · into Firth Of Forth · 2.9 km from Musselburgh in a straight line · discharges to the sea, an estuary or tidal water · 2025: 84 overflow events, 472 h
2 other overflows within 3 km of these gauges are placed below the Esk (Lothian)’s lowest gauge or on another river, so not listed.
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