Location

Point 2

Old River Lea

Old River Lea in Waltham Forest

Dataset summary

Point 2 has data for clarity, water_flow, water_level, ammonia, conductivity, water_temperature, phosphates, current_weather, previous_weather, odour, pollution_sources, algae, water_use, colour, on_the_water_s_surface, turbidity, previous_weather_description, and current_weather_description from 6 April 2024 to 5 October 2025.

51.558503, -0.024698

Summary of quantitative results

Guidelines for exceedances are based on: United Kingdom
  • Chemistry tests

    • Ammonia

      mg/L

      Hanna checker (ammonia - medium range)

      0.16

      Latest

      0.16

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Conductivity

      μS/cm

      Other pen-type meter (conductivity)

      787.0

      Latest

      897.0

      Average

View observation list ›

Recent photos

View more photos ›
Location description
Below the outfall for the Flood Relief Channel and above that for Dagenham Brook and a nearby unknown outfall. Samples here taken from the bank.