Where can I fish a clean stretch?

Clean stretches today· 4 spots

These sampling points have recent WFD-good nutrient readings and no active spill nearby. Good signal for fish-stream health, but still watch the weather — heavy rainfall changes things in hours.

• FRESHWATER - RIVERS · SO-Y0004415

  SCOTCHELLS BROOK AT BURNT HOUSE

  Southern · SOUTHERN - SOLENT AND SOUTH DOWNS

  Last tested 7 days ago · 7 measurements all green

  📍 View on map

• FRESHWATER - RIVERS · SW-81261152

  RIVER LYD AT GREENLANES BRIDGE

  SouthWest · SOUTH WEST - DEVON AND CORNWALL

  Last tested 7 days ago · 7 measurements all green

  📍 View on map

• FRESHWATER - RIVERS · SW-81918040

  CURY RIVER AT CHYPONS BRIDGE

  SouthWest · SOUTH WEST - DEVON AND CORNWALL

  Last tested 7 days ago · 7 measurements all green

  📍 View on map

• FRESHWATER - RIVERS · SW-81918042

  CLAHAR STREAM ABOVE CURY RIVER

  SouthWest · SOUTH WEST - DEVON AND CORNWALL

  Last tested 7 days ago · 7 measurements all green

  📍 View on map

Active spills to avoid right now· 29

Storm overflows currently discharging. Avoid fishing within 5 km downstream until conditions settle (typically 48 hours after heavy rain). Fish kills downstream of dry-weather spills are a direct ammonia-toxicity signal worth reporting.

1. 01

   RIVER TRENT

   Severn Trent Water · SVT01679 · spilling for 25 weeks

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2. 02

   ENGLISH CHANNEL

   Southern Water · SWS00007 · spilling for 5 weeks

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3. 03

   Unknown watercourse

   Yorkshire Water · YWS02298 · spilling for 4 weeks

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4. 04

   MEDWAY

   Southern Water · SWS00803 · spilling for 3 weeks

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5. 05

   Afon Camnant

   Dwr Cymru Welsh Water · Hirwaun Industrial Estate WwTW Storm Overflow · spilling for 3 weeks

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6. 06

   RIVER MEAVY

   South West Water · SBB00514 · spilling for 13 days

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7. 07

   River Taf

   Dwr Cymru Welsh Water · Llanfyrnach WwTW Storm Overflow · spilling for 12 days

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8. 08

   River Lune Estuary

   United Utilities · UUP00603 · spilling for 11 days

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9. 09

   Unnamed tributary of Smal Brook

   United Utilities · UUP00535 · spilling for 10 days

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10. 10

    Unnamed Watercourse

    Dwr Cymru Welsh Water · Llanaelhaearn WwTW Overflow · spilling for 7 days

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11. 11

    River Wye

    Dwr Cymru Welsh Water · Tintern Main Road Storm Overflow · spilling for 4 days

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12. 12

    TRIB OF PULWORTHY BROOK (S)

    South West Water · SBB00570 · spilling for 2 days

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13. 13

    River Twymyn

    Dwr Cymru Welsh Water · Commins Coch Storm Overflow · spilling for 2 days

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14. 14

    Elwy

    Dwr Cymru Welsh Water · Llangernyw WwTW Overflow · spilling for 2 days

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15. 15

    Nant Hafren

    Dwr Cymru Welsh Water · Eglwyswrw WwTW Storm Overflow · spilling for 10.6 h

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16. 16

    RIVER TRENT

    Severn Trent Water · SVT01949 · spilling for 7.2 h

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17. 17

    TRIBUTARY OF THE RIVER ITCHEN

    Severn Trent Water · SVT00891 · spilling for 6.2 h

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18. 18

    River Humber

    Yorkshire Water · YWS01451 · spilling for 4.3 h

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19. 19

    Afon Lliw

    Dwr Cymru Welsh Water · Capel Curig WwTW Storm Overflow · spilling for 3.1 h

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20. 20

    Afon Marlais

    Dwr Cymru Welsh Water · Waunfarlais Road Brynmarlais Storm Overflow · spilling for 3.1 h

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21. 21

    PENPONT WATER

    South West Water · SBB00043 · spilling for 3 h

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22. 22

    Gwendraeth Fawr

    Dwr Cymru Welsh Water · Pontyates Heol Y Meinciau Storm Overflow · spilling for 2.6 h

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23. 23

    Afon Morlais

    Dwr Cymru Welsh Water · Llannon WwTW Storm Overflow · spilling for 2.1 h

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24. 24

    Tributary of Coombe Valley Stream

    South West Water · SBB01407 · spilling for 2 h

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25. 25

    River Ellen

    United Utilities · UUP00259 · spilling for 2 h

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26. 26

    RIVER CULM

    South West Water · SBB01024 · spilling for 1.8 h

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27. 27

    Trib Of River Ure (Culverted) (Via Sw.Sewer)

    Yorkshire Water · YWS00317 · spilling for 1.4 h

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28. 28

    Nant Cledlyn

    Dwr Cymru Welsh Water · Cwrtnewydd WwTW Storm Overflow · spilling for 1.2 h

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29. 29

    The River Irwell

    United Utilities · UUP01920 · spilling for 1 h

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How “clean stretch” works for anglers

• Nutrient pollution first. We require a recent reading of ammonia, nitrate, nitrite, total phosphorus, or orthophosphate — the indicators that drive algal blooms, ammonia toxicity, and fish-stream health under the Water Framework Directive.
• Within WFD “good” or better. Ammoniacal nitrogen < 0.4 mg/L · un-ionised ammonia < 0.025 mg/L · nitrate < 7 mg/L · nitrite < 0.03 mg/L · phosphorus < 0.05 mg/L. Drawn from the Environment Agency's WFD river standards.
• No active spills nearby. Within 5 km, no storm overflow currently discharging. Sewage raises ammonia and depletes oxygen quickly — even a green test from yesterday is unsafe if a spill is happening today.
• Recent enough. The nutrient test must be within the last 14 days. Older readings get flagged stale.

Note: dissolved oxygen — the single most important indicator for fish — is published by the EA via the Hydrology API (continuous sondes), not WIMS (lab samples). We surface DO data directly on relevant overflow pages where a sonde is in range. Lab DO from WIMS is intermittent across the inland network and isn't in our safe-spot scoring as a result.