Bishop Dike at Tile Bridge - Cawood
EA name: BISHOP DIKE AT TILE BRIDGE - CAWOOD
Environment Agency sampling point NE-49100068 · Freshwater - rivers · listed as open (“open” does not mean it is sampled now)
These are samples taken on a date, not live readings of the river. Results reach the Environment Agency's archive days to months after the sample is taken, so the newest here may be weeks or months old. FloodRadar does not grade them.
Where and when
- Last sampled
- 7 Sep 2026, 10:4824 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 26 since 16 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 456684, 436850As published, to the nearest 1 m. Open in a map
- River, by its own name
- Bishop Dike
- River, by the map
- Bishop DikePlaced on the river its name gives, 5 m from the line.
- Next gauge downstream
- Selby Westmill On the River Ouse · 14 km along the river
- Why it was sampled
- Monitoring (national agency policy) (20 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
86.3%
Sampled 7 Sep 2026, 24 days ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:48 | 86.3 | 86.3% |
| 3 Aug 2026, 17:00 | 137.7 | 137.7% |
| 10 Jul 2026, 13:08 | 57.2 | 57.2% |
| 10 Jun 2026, 15:34 | 95.8 | 95.8% |
| 1 May 2026, 16:29 | 203.8 | 203.8% |
| 9 Apr 2026, 12:43 | 117.9 | 117.9% |
| 4 Feb 2026, 14:10 | 87.1 | 87.1% |
| 9 Oct 2025, 12:22 | 90.7 | 90.7% |
| 1 Aug 2025, 13:36 | 109.1 | 109.1% |
| 7 Mar 2025, 10:04 | 90.4 | 90.4% |
| 21 Feb 2025, 14:12 | 101.6 | 101.6% |
| 30 Jan 2025, 12:24 | 87.7 | 87.7% |
| 6 Dec 2024, 14:32 | 81.3 | 81.3% |
| 20 Nov 2024, 13:19 | 100.8 | 100.8% |
| 15 Oct 2024, 12:28 | 97.9 | 97.9% |
| 13 Sep 2024, 12:05 | 83.2 | 83.2% |
| 21 Aug 2024, 12:21 | 91.4 | 91.4% |
| 18 Jul 2024, 10:36 | 91.3 | 91.3% |
| 17 Jun 2024, 14:38 | 124.4 | 124.4% |
| 28 May 2024, 11:05 | 92.1 | 92.1% |
| 18 Apr 2024, 16:09 | 150.2 | 150.2% |
| 18 Mar 2024, 11:12 | 97.6 | 97.6% |
| 29 Feb 2024, 12:16 | 96.1 | 96.1% |
| 31 Jan 2024, 11:15 | 79.5 | 79.5% |
| 7 Dec 2023, 12:09 | 79.8 | 79.8% |
| 16 Oct 2023, 10:47 | 123.1 | 123.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.5 mg/l
Sampled 7 Sep 2026, 24 days ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:48 | 8.5 | 8.5 mg/l |
| 3 Aug 2026, 17:00 | 12.2 | 12.2 mg/l |
| 10 Jul 2026, 13:08 | 5.08 | 5.08 mg/l |
| 10 Jun 2026, 15:34 | 9.57 | 9.57 mg/l |
| 1 May 2026, 16:29 | 19.7 | 19.7 mg/l |
| 9 Apr 2026, 12:43 | 12.3 | 12.3 mg/l |
| 4 Feb 2026, 14:10 | 10.6 | 10.6 mg/l |
| 9 Oct 2025, 12:22 | 9.56 | 9.56 mg/l |
| 1 Aug 2025, 13:36 | 10.2 | 10.2 mg/l |
| 7 Mar 2025, 10:04 | 10.4 | 10.4 mg/l |
| 21 Feb 2025, 14:12 | 11.1 | 11.1 mg/l |
| 30 Jan 2025, 12:24 | 11.3 | 11.3 mg/l |
| 6 Dec 2024, 14:32 | 9.86 | 9.86 mg/l |
| 20 Nov 2024, 13:19 | 13.5 | 13.5 mg/l |
| 15 Oct 2024, 12:28 | 11 | 11 mg/l |
| 13 Sep 2024, 12:05 | 9.18 | 9.18 mg/l |
| 21 Aug 2024, 12:21 | 9.19 | 9.19 mg/l |
| 18 Jul 2024, 10:36 | 8.82 | 8.82 mg/l |
| 17 Jun 2024, 14:38 | 12.5 | 12.5 mg/l |
| 28 May 2024, 11:05 | 9.32 | 9.32 mg/l |
| 18 Apr 2024, 16:09 | 17.2 | 17.2 mg/l |
| 18 Mar 2024, 11:12 | 11 | 11 mg/l |
| 29 Feb 2024, 12:16 | 11.1 | 11.1 mg/l |
| 31 Jan 2024, 11:15 | 9.83 | 9.83 mg/l |
| 7 Dec 2023, 12:09 | 10.3 | 10.3 mg/l |
| 16 Oct 2023, 10:47 | 14.9 | 14.9 mg/l |
Water temperature
code 0076 · °C
16 °C
Sampled 7 Sep 2026, 24 days ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:48 | 16 | 16 °C |
| 3 Aug 2026, 17:00 | 21.2 | 21.2 °C |
| 10 Jul 2026, 13:08 | 21.1 | 21.1 °C |
| 10 Jun 2026, 15:34 | 15.3 | 15.3 °C |
| 1 May 2026, 16:29 | 16.9 | 16.9 °C |
| 9 Apr 2026, 12:43 | 13.4 | 13.4 °C |
| 4 Feb 2026, 14:10 | 6.8 | 6.8 °C |
| 9 Oct 2025, 12:22 | 12.9 | 12.9 °C |
| 1 Aug 2025, 13:36 | 18.5 | 18.5 °C |
| 7 Mar 2025, 10:04 | 9.3 | 9.3 °C |
| 21 Feb 2025, 14:12 | 11.2 | 11.2 °C |
| 30 Jan 2025, 12:24 | 4.6 | 4.6 °C |
| 6 Dec 2024, 14:32 | 7 | 7 °C |
| 20 Nov 2024, 13:19 | 3.1 | 3.1 °C |
| 15 Oct 2024, 12:28 | 10.2 | 10.2 °C |
| 13 Sep 2024, 12:05 | 10.9 | 10.9 °C |
| 21 Aug 2024, 12:21 | 15 | 15 °C |
| 18 Jul 2024, 10:36 | 16.9 | 16.9 °C |
| 17 Jun 2024, 14:38 | 15.1 | 15.1 °C |
| 28 May 2024, 11:05 | 14.7 | 14.7 °C |
| 18 Apr 2024, 16:09 | 9.4 | 9.4 °C |
| 18 Mar 2024, 11:12 | 10.1 | 10.1 °C |
| 29 Feb 2024, 12:16 | 9.1 | 9.1 °C |
| 31 Jan 2024, 11:15 | 6.2 | 6.2 °C |
| 7 Dec 2023, 12:09 | 4.7 | 4.7 °C |
| 16 Oct 2023, 10:47 | 7 | 7 °C |
pH
code 0061
7.88
Sampled 7 Sep 2026, 24 days ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:48 | 7.88 | 7.88 |
| 3 Aug 2026, 17:00 | 7.97 | 7.97 |
| 10 Jul 2026, 13:08 | 7.59 | 7.59 |
| 10 Jun 2026, 15:34 | 7.95 | 7.95 |
| 1 May 2026, 16:29 | 8.48 | 8.48 |
| 9 Apr 2026, 12:43 | 7.99 | 7.99 |
| 4 Feb 2026, 14:10 | 7.92 | 7.92 |
| 9 Oct 2025, 12:22 | 7.98 | 7.98 |
| 1 Aug 2025, 13:36 | 7.98 | 7.98 |
| 7 Mar 2025, 10:04 | 7.94 | 7.94 |
| 21 Feb 2025, 14:12 | 7.95 | 7.95 |
| 30 Jan 2025, 12:24 | 7.78 | 7.78 |
| 6 Dec 2024, 14:32 | 7.81 | 7.81 |
| 20 Nov 2024, 13:19 | 8.04 | 8.04 |
| 15 Oct 2024, 12:28 | 8.3 | 8.3 |
| 13 Sep 2024, 12:05 | 7.99 | 7.99 |
| 21 Aug 2024, 12:21 | 7.98 | 7.98 |
| 18 Jul 2024, 10:36 | 7.77 | 7.77 |
| 17 Jun 2024, 14:38 | 8.33 | 8.33 |
| 28 May 2024, 11:05 | 7.93 | 7.93 |
| 18 Apr 2024, 16:09 | 8.42 | 8.42 |
| 18 Mar 2024, 11:12 | 7.94 | 7.94 |
| 29 Feb 2024, 12:16 | 7.9 | 7.9 |
| 31 Jan 2024, 11:15 | 7.75 | 7.75 |
| 7 Dec 2023, 12:09 | 7.81 | 7.81 |
| 16 Oct 2023, 10:47 | 8.08 | 8.08 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.046 mg/l
Sampled 7 Sep 2026, 24 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:48 | 0.046 | 0.046 mg/l |
| 3 Aug 2026, 17:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jul 2026, 13:08 | 0.031 | 0.031 mg/l |
| 10 Jun 2026, 15:34 | 0.038 | 0.038 mg/l |
| 1 May 2026, 16:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Apr 2026, 12:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2026, 14:10 | 0.038 | 0.038 mg/l |
| 9 Oct 2025, 12:22 | 0.033 | 0.033 mg/l |
| 1 Aug 2025, 13:36 | 0.09 | 0.09 mg/l |
| 7 Mar 2025, 10:04 | 0.098 | 0.098 mg/l |
| 21 Feb 2025, 14:12 | 0.06 | 0.06 mg/l |
| 30 Jan 2025, 12:24 | 0.032 | 0.032 mg/l |
| 20 Nov 2024, 13:19 | 0.074 | 0.074 mg/l |
| 15 Oct 2024, 12:28 | 0.045 | 0.045 mg/l |
| 13 Sep 2024, 12:05 | 0.077 | 0.077 mg/l |
| 21 Aug 2024, 12:21 | 0.038 | 0.038 mg/l |
| 18 Jul 2024, 10:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jun 2024, 14:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 May 2024, 11:05 | 0.093 | 0.093 mg/l |
| 18 Apr 2024, 16:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2024, 11:12 | 0.03 | 0.03 mg/l |
| 29 Feb 2024, 12:16 | 0.033 | 0.033 mg/l |
| 31 Jan 2024, 11:15 | 0.047 | 0.047 mg/l |
| 7 Dec 2023, 12:09 | 0.032 | 0.032 mg/l |
| 16 Oct 2023, 10:47 | 0.044 | 0.044 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.67 mg/l
Sampled 7 Sep 2026, 24 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:48 | 4.67 | 4.67 mg/l |
| 3 Aug 2026, 17:00 | 3.88 | 3.88 mg/l |
| 10 Jul 2026, 13:08 | 3.16 | 3.16 mg/l |
| 10 Jun 2026, 15:34 | 5.26 | 5.26 mg/l |
| 1 May 2026, 16:29 | 2.96 | 2.96 mg/l |
| 9 Apr 2026, 12:43 | 7.85 | 7.85 mg/l |
| 4 Feb 2026, 14:10 | 11 | 11 mg/l |
| 9 Oct 2025, 12:22 | 6.27 | 6.27 mg/l |
| 1 Aug 2025, 13:36 | 3.94 | 3.94 mg/l |
| 7 Mar 2025, 10:04 | 9.28 | 9.28 mg/l |
| 21 Feb 2025, 14:12 | 8.47 | 8.47 mg/l |
| 30 Jan 2025, 12:24 | 9.99 | 9.99 mg/l |
| 20 Nov 2024, 13:19 | 8.47 | 8.47 mg/l |
| 15 Oct 2024, 12:28 | 8.06 | 8.06 mg/l |
| 13 Sep 2024, 12:05 | 6.77 | 6.77 mg/l |
| 21 Aug 2024, 12:21 | 6.26 | 6.26 mg/l |
| 18 Jul 2024, 10:36 | 6.03 | 6.03 mg/l |
| 17 Jun 2024, 14:38 | 6.96 | 6.96 mg/l |
| 28 May 2024, 11:05 | 8.84 | 8.84 mg/l |
| 18 Apr 2024, 16:09 | 9.78 | 9.78 mg/l |
| 18 Mar 2024, 11:12 | 9.97 | 9.97 mg/l |
| 29 Feb 2024, 12:16 | 11 | 11 mg/l |
| 31 Jan 2024, 11:15 | 6.95 | 6.95 mg/l |
| 7 Dec 2023, 12:09 | 9.48 | 9.48 mg/l |
| 16 Oct 2023, 10:47 | 6.28 | 6.28 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.15 mg/l
Sampled 7 Sep 2026, 24 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:48 | 0.15 | 0.15 mg/l |
| 3 Aug 2026, 17:00 | 0.1 | 0.1 mg/l |
| 10 Jul 2026, 13:08 | 0.18 | 0.18 mg/l |
| 10 Jun 2026, 15:34 | 0.15 | 0.15 mg/l |
| 1 May 2026, 16:29 | 0.059 | 0.059 mg/l |
| 9 Apr 2026, 12:43 | 0.089 | 0.089 mg/l |
| 4 Feb 2026, 14:10 | 0.089 | 0.089 mg/l |
| 9 Oct 2025, 12:22 | 0.13 | 0.13 mg/l |
| 1 Aug 2025, 13:36 | 0.12 | 0.12 mg/l |
| 7 Mar 2025, 10:04 | 0.13 | 0.13 mg/l |
| 21 Feb 2025, 14:12 | 0.13 | 0.13 mg/l |
| 30 Jan 2025, 12:24 | 0.1 | 0.1 mg/l |
| 20 Nov 2024, 13:19 | 0.18 | 0.18 mg/l |
| 15 Oct 2024, 12:28 | 0.12 | 0.12 mg/l |
| 13 Sep 2024, 12:05 | 0.096 | 0.096 mg/l |
| 21 Aug 2024, 12:21 | 0.13 | 0.13 mg/l |
| 18 Jul 2024, 10:36 | 0.12 | 0.12 mg/l |
| 17 Jun 2024, 14:38 | 0.097 | 0.097 mg/l |
| 28 May 2024, 11:05 | 0.12 | 0.12 mg/l |
| 18 Apr 2024, 16:09 | 0.038 | 0.038 mg/l |
| 18 Mar 2024, 11:12 | 0.077 | 0.077 mg/l |
| 29 Feb 2024, 12:16 | 0.067 | 0.067 mg/l |
| 7 Dec 2023, 12:09 | 0.12 | 0.12 mg/l |
| 16 Oct 2023, 10:47 | 0.088 | 0.088 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1465 µS/cm
Sampled 7 Sep 2026, 24 days ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:48 | 1465 | 1465 µS/cm |
| 3 Aug 2026, 17:00 | 1566 | 1566 µS/cm |
| 10 Jul 2026, 13:08 | 1522 | 1522 µS/cm |
| 10 Jun 2026, 15:34 | 1386 | 1386 µS/cm |
| 1 May 2026, 16:29 | 1351 | 1351 µS/cm |
| 9 Apr 2026, 12:43 | 1339 | 1339 µS/cm |
| 4 Feb 2026, 14:10 | 1133 | 1133 µS/cm |
| 9 Oct 2025, 12:22 | 1495 | 1495 µS/cm |
| 1 Aug 2025, 13:36 | 1588 | 1588 µS/cm |
| 7 Mar 2025, 10:04 | 1318 | 1318 µS/cm |
| 21 Feb 2025, 14:12 | 1161 | 1161 µS/cm |
| 30 Jan 2025, 12:24 | 1225 | 1225 µS/cm |
| 6 Dec 2024, 14:32 | 734 | 734 µS/cm |
| 20 Nov 2024, 13:19 | 1559 | 1559 µS/cm |
| 15 Oct 2024, 12:28 | 1343 | 1343 µS/cm |
| 13 Sep 2024, 12:05 | 1405 | 1405 µS/cm |
| 21 Aug 2024, 12:21 | 1463 | 1463 µS/cm |
| 18 Jul 2024, 10:36 | 1350 | 1350 µS/cm |
| 17 Jun 2024, 14:38 | 1278 | 1278 µS/cm |
| 28 May 2024, 11:05 | 1216 | 1216 µS/cm |
| 18 Apr 2024, 16:09 | 1228 | 1228 µS/cm |
| 18 Mar 2024, 11:12 | 1168 | 1168 µS/cm |
| 29 Feb 2024, 12:16 | 1217 | 1217 µS/cm |
| 31 Jan 2024, 11:15 | 889 | 889 µS/cm |
| 7 Dec 2023, 12:09 | 1078 | 1078 µS/cm |
| 16 Oct 2023, 10:47 | 1464 | 1464 µS/cm |
Everything measured here
13 determinands, each kept by its code, unit and sample material: results in different units or on different materials are never mixed. A “below” result is under the laboratory's detection limit, not zero.
Show all 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 26 | Oct 2023 – Sep 2026 | 86.3% 7 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 26 | Oct 2023 – Sep 2026 | 8.5 mg/l 7 Sep 2026 |
| Temperature of Water 0076 | River water | 26 | Oct 2023 – Sep 2026 | 16 °C 7 Sep 2026 |
| pH 0061 | River water | 26 | Oct 2023 – Sep 2026 | 7.88 7 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 25 | Oct 2023 – Sep 2026 | 0.046 mg/l 7 Sep 2026 |
| Nitrate as N 0117 | River water | 25 | Oct 2023 – Sep 2026 | 4.67 mg/l 7 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Oct 2023 – Sep 2026 | 0.15 mg/l 7 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 26 | Oct 2023 – Sep 2026 | 1465 µS/cm 7 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 25 | Oct 2023 – Sep 2026 | 300 mg/l 7 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 25 | Oct 2023 – Sep 2026 | 0.00099 mg/l 7 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 18 | Feb 2024 – Apr 2026 | 1.9 mg/l 9 Apr 2026 |
| Nitrite as N 0118 | River water | 25 | Oct 2023 – Sep 2026 | 0.034 mg/l 7 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 25 | Oct 2023 – Sep 2026 | 4.7 mg/l 7 Sep 2026 |
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.