| Elmbridge Brook tributary | unnamed stream | 18 km | 16 Dec 2025 · 10 months ago | Oxygen 97.5%Temp 8.2 °CpH 8.12Ammonia below 0.03 mg/l |
| River Salwarpe at Stoke Prior | River Salwarpe | 14 km | 12 Feb 2026 · 8 months ago | Oxygen 93.4%Temp 9 °CpH 7.72Conductivity 604 µS/cm |
| Hen Brook Culvert Entry upstream of Bayer | Hen Brook | 14 km | Last sampled 3 Jun 2008, before the imported period | |
| Hen Brook downstream of Shaw Lane Bayer | Hen Brook | 13 km | Last sampled 8 Sep 2008, before the imported period | |
| River Salwarpe at Upton Warren | River Salwarpe | 12 km | Last sampled 4 Sep 2014, before the imported period | |
| Hen Brook at Upton Warren Water | Hen Brook | 12 km | 4 Dec 2025 · 10 months ago | Oxygen 82.5%Temp 8.9 °CpH 7.47Ammonia below 0.03 mg/l |
| Body Brook at the M5 Culvert | Body Brook | 5.8 km | Last sampled 11 Feb 2008, before the imported period | |
| River Salwarpe at Chapel Bridge Droitwich | River Salwarpe | 4.8 km | 28 Aug 2026 · 41 days ago | Oxygen 88.8%Temp 17.8 °CpH 7.65Ammonia 0.11 mg/l |
| River Salwarpe at Vine Park Droitwich | River Salwarpe | 4.7 km | Last sampled 5 Aug 2011, before the imported period | |
| River Salwarpe at Kidderminster Road Bridge | River Salwarpe | 4.1 km | Last sampled 5 May 2010, before the imported period | |
| Elmbridge Brook at Newtown Droitwich | Elmbridge Brook | 3.0 km | 9 Sep 2026 · 29 days ago | Oxygen 74.7% Sep 2026Temp 15.3 °CpH 7.91 Sep 2026Ammonia 0.07 mg/l |
| A4133 Wards Bridge, Hadley/Elmley Brook | Hadley Brook | 1.6 km | 24 Aug 2026 · 45 days ago | Oxygen 82%Temp 13.9 °CpH 8.02Ammonia below 0.03 mg/l |