| Langham Brook upstream of Langham sewage treatment works | unnamed stream | 27 km | 7 May 2026 · 5 months ago | Oxygen 91.2%Temp 9.3 °CpH 7.98Ammonia 0.043 mg/l |
| Langham Brook downstream of Langham sewage treatment works | unnamed stream | 24 km | 14 Sep 2026 · 24 days ago | Oxygen 71.8%Temp 16.8 °CpH 7.63Ammonia 0.091 mg/l |
| Whissendine Brook downstream of Whissendine sewage treatment works | Whissendine Brook | 19 km | 1 Sep 2026 · 37 days ago | Oxygen 74.8%Temp 16.2 °CpH 7.75Ammonia 0.077 mg/l |
| Somerby Brook Whissendine Road Bridge | unnamed stream | 16 km | 10 Mar 2025 · 19 months ago | Oxygen 109.3%Temp 6.7 °CpH 8.44Ammonia below 0.03 mg/l |
| Matamata Farm | unnamed stream | 15 km | 6 Dec 2023 · 2.8 years ago | Oxygen 94.5%Temp 4.9 °CpH 7.77Ammonia 0.059 mg/l |
| Whissendine Brook upstream of Langham Brook | Whissendine Brook | 15 km | 11 Dec 2025 · 10 months ago | Oxygen 97.4%Temp 8.5 °CpH 8.03Ammonia below 0.03 mg/l |
| Wymondham Brook at Stapleford | unnamed stream | 13 km | 7 Sep 2026 · 31 days ago | Oxygen 44.5%Temp 15.4 °CpH 7.63Ammonia 0.054 mg/l |
| Freeby Brook confluence River Eye | unnamed stream | 11 km | 1 Sep 2026 · 37 days ago | Oxygen 55.6%Temp 15.7 °CpH 7.58Ammonia 0.14 mg/l |
| Tributary of Scalford Brook, downstream of Wildberry | unnamed stream | 10 km | Last sampled 18 Mar 2019, before the imported period | |
| Thorpe/Chadwell Brook - at Chadwell | unnamed stream | 8.9 km | 10 Sep 2026 · 28 days ago | Oxygen 78.2%Temp 12.4 °CpH 7.57Ammonia below 0.03 mg/l |
| Burton Brook (East) upstream of Burton Lazars sewage treatment works | Burton Brook | 6.0 km | 14 Sep 2026 · 24 days ago | Oxygen 46.1%Temp 16.3 °CpH 7.78Ammonia 0.078 mg/l |
| Burton Brook (East) at Burton Lazars | Burton Brook | 5.4 km | 1 Sep 2026 · 37 days ago | Oxygen 64.1%Temp 14.3 °CpH 7.73Ammonia 0.087 mg/l |
| Melton Country Park B | Scalford Brook | 3.9 km | 13 Mar 2026 · 7 months ago | Oxygen 94.4%Temp 7.2 °CpH 8.09Ammonia 0.17 mg/l |
| Melton Country Park | Scalford Brook | 3.7 km | Last sampled 11 Sep 2023, before the imported period | |
| Thorpe Brook upstream of A607 Melton Mowbray | Thorpe Brook | 3.2 km | 13 Mar 2026 · 7 months ago | Oxygen 99.6%Temp 7.9 °CpH 8.3Ammonia below 0.03 mg/l |
| Thorpe/Chadwell Brook - at Melton | Thorpe Brook | 1.7 km | Last sampled 6 Mar 2020, before the imported period | |
| Scalford Brook at Melton | Scalford Brook | 1.4 km | 26 Mar 2026 · 6 months ago | Oxygen 98.4%Temp 8.5 °CpH 8.47Ammonia below 0.03 mg/l |