| 18 Deepdale Road | River Ribble via a surface water sewer | Not Discharging | 12:00 Apr 04 | 12:38 Apr 04 |
| 2 Mill Lane Combined Sewer Overflow | Savick Brook via surface water sewer | Not Discharging | 12:44 Feb 20 | 12:38 Apr 04 |
| 208 Deepdale Road CSO | Moor Brook Culvert | Not Discharging | 18:32 Dec 31 2024 | 12:38 Apr 04 |
| 75 Lower Bank Road CSO | Eaves Brook | Not Discharging | 24:00 Jan 01 1970 | 12:38 Apr 04 |
| Albyn Street East CSO 33102 | Swill Brook Culvert, a tributary of River Ribble | Not Discharging | 11:00 Mar 01 | 12:38 Apr 04 |
| Bank Parade CSO | River Ribble Estuarine Waters | Not Discharging | 05:24 Mar 23 | 12:38 Apr 04 |
| Banksfield Avenue CSO 33027 | Savick Brook a tributary of the River Ribble Estuary | Not Discharging | 12:49 Feb 20 | 12:38 Apr 04 |
| Black Bull Mh C1 CSO 331eq | Savick Brook | Not Discharging | 02:58 Mar 28 | 12:38 Apr 04 |
| Brownedge Lane CSO 401gr | Cockshott Brook a tributary of the River Darwen | Not Discharging | 04:02 Jan 01 | 12:38 Apr 04 |
| Cann Bridge Street CSO 40042 | River Darwen | Not Discharging | 08:32 Mar 25 | 12:38 Apr 04 |
| Cattle Market CSO | Eaves Brook, a tributary of Savick Brook, a tributary of the River Ribble | Not Discharging | 22:50 Jan 06 | 12:38 Apr 04 |
| Cop Lane CSO | Tributary of the River Ribble, via a surface water sewer | Not Discharging | 10:05 Jan 01 | 12:38 Apr 04 |
| Cuerdale Lane CSO 401qm | River Ribble | Not Discharging | 24:00 Jan 01 1970 | 12:38 Apr 04 |
| Dale Street CSO 331r7 | River Ribble (Tidal) | Not Discharging | 07:10 Aug 21 2024 | 12:38 Apr 04 |
| Duddle Lane CSO | Hennel Brook, A Tributary of the River Darwin | Not Discharging | 09:45 Jan 06 | 12:38 Apr 04 |
| Factory Lane CSO | Boundary Brook, a tributary of the River Ribble | Not Discharging | 11:35 Jan 24 | 12:38 Apr 04 |
| Field East Of River Darwin CSO | River Darwin | Not Discharging | 13:16 Jan 01 | 12:38 Apr 04 |
| Fishergate Hill CSO (Chamber C9) | River Ribble | Not Discharging | 08:24 Apr 03 | 12:38 Apr 04 |
| Fishergate Hill CSO Chamber C8 | River Ribble via Chain Caul culvert | Not Discharging | 12:00 Apr 04 | 12:38 Apr 04 |
| Frenchwood Knoll CSO 331ux | Swillbrook Culvert a tributary of the River Ribble (Tidal) | Not Discharging | 12:46 Feb 20 | 12:38 Apr 04 |
| George Street CSO 331vj | An unnamed culverted tributary of River Ribble | Not Discharging | 04:48 Mar 23 | 12:38 Apr 04 |
| Halsbury Street CSO 331xr | Swill Brook Culvert, a tributary of the River Ribble | Not Discharging | 04:14 Apr 01 | 12:38 Apr 04 |
| Haslam Park North And South Combined Sewer Overflow (Site Id 33026) (Pre0090) | Savick Brook | Not Discharging | 24:00 Jan 01 1970 | 12:38 Apr 04 |
| Haslam Park North And South Combined Sewer Overflow (Site Id 33026) (Pre0090) | Savick Brook | Not Discharging | 10:00 Feb 15 | 12:38 Apr 04 |
| Hennel Lane CSO | River Darwen | Not Discharging | 06:15 Mar 23 | 12:38 Apr 04 |
| Holme Road Combined Sewer Overflow | River Ribble | Not Discharging | 24:40 Mar 23 | 12:38 Apr 04 |
| London Road | River Ribble via surface water sewer | Not Discharging | 24:00 Jan 01 1970 | 12:38 Apr 04 |
| Manchester Rd/Selbourne Rd CSO | River Ribble via Swillbrook Culvert | Not Discharging | 13:30 Mar 23 | 12:38 Apr 04 |
| Manor House Lane CSO 33037 | Eaves Brook, a tributary of Savick Brook, a tributary of the River Ribble | Not Discharging | 14:38 Feb 20 | 12:38 Apr 04 |
| Marsh Lane CSO Pre0021 | Chain Caul culvert, via a surface water sewer | Not Discharging | 18:46 Mar 29 | 12:38 Apr 04 |
| Moorbrook Street CSO 332f2 | Culverted section of Moor Brook a tributary of the River Ribble Estuary | Not Discharging | 17:32 Sep 12 2024 | 12:38 Apr 04 |
| Percy Street CSO | Storm Culvert, a tributary of the River Ribble | Not Discharging | 11:00 Apr 04 | 12:38 Apr 04 |
| Powis Road CSO 332mg Pre0025 | Chain Caul Culvert | Not Discharging | 18:59 Dec 31 2024 | 12:38 Apr 04 |
| Ribbleton Lane CSO 33103 | River Ribble (Tidal) via a surface water sewer | Not Discharging | 18:57 Jan 06 | 12:38 Apr 04 |
| Riverside Road CSO | River Ribble (Tidal) | Not Discharging | 07:20 Jan 01 | 12:38 Apr 04 |
| Sharoe Green Hospital CSO 333jk | Savick Brook | Not Discharging | 15:40 Apr 03 | 12:38 Apr 04 |
| Sharoe Green Lane CSO 33034 | Savick Brook | Not Discharging | 09:22 Feb 11 | 12:38 Apr 04 |
| St Georges Road CSO | Moore Brook Culvert, a tributary of River Ribble via a surface water sewer | Not Discharging | 18:30 Dec 31 2024 | 12:38 Apr 04 |
| St Pauls Road CSO | Mersey Estuary | Not Discharging | 05:04 Mar 23 | 12:38 Apr 04 |
| TBC | River Ribble via a surface water sewer | Not Discharging | 12:44 Feb 20 | 12:38 Apr 04 |
| TBC | Savick Brook | Not Discharging | 24:00 Jan 01 1970 | 12:38 Apr 04 |
| Valley Road Pumping Station | River Ribble Estuarine Waters | Not Discharging | 14:36 Jan 05 | 12:38 Apr 04 |
| Victoria Rd CSO 33023 | Eaves Brook | Not Discharging | 13:43 Feb 20 | 12:38 Apr 04 |
| Walton-Le-Dale STW | Tidal Ribble River | Not Discharging | 10:33 Jan 27 | 12:38 Apr 04 |
| Watery Lane CSO | Sutton Mill Brook | Not Discharging | 12:00 Apr 04 | 12:38 Apr 04 |
| Watery Lane CSO Pre0108 | Chain Caul Culvert | Not Discharging | 24:00 Jan 01 1970 | 12:38 Apr 04 |
| Watery Lane CSO Shaft C1 Pre0093 | Moorbrook Culvert | Not Discharging | 24:00 Jan 01 1970 | 12:38 Apr 04 |
| Watery Lane Douglas St CSO Pre0110 | River Ribble via Chain Caul Culvert and/or Wards Storm Culvert | Not Discharging | 09:19 Mar 31 | 12:38 Apr 04 |
| Watling Street Road CSO 33024 | Eaves Brook a tributary of Savick Brook | Not Discharging | 10:15 Mar 03 | 12:38 Apr 04 |
| West Strand CSO Chamber C10 Pre0071 | Chain Caul Culvert | Not Discharging | 24:18 Mar 23 | 12:38 Apr 04 |
| Wolseley Road CSO | River Ribble Estuarine Waters | Not Discharging | 09:35 Feb 18 | 12:38 Apr 04 |