River Tas Old Hall Bridge
EA name: R.TAS OLD HALL BRIDGE
Environment Agency sampling point AN-TAS020 · 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
- 30 Jun 2026, 14:353 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 23 since 25 Jun 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 612600, 290700As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Tas
- River, by the map
- River TasPlaced on the river its name gives, 47 m from the line.
- Next gauge downstream
- Shotesham On the River Tas · 17 km along the river
- Why it was sampled
- Monitoring (national agency policy) (23 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
35.3%
Sampled 30 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 30 Jun 2026, 14:35 | 35.3 | 35.3% |
| 14 Apr 2026, 14:09 | 115 | 115% |
| 4 Mar 2026, 12:43 | 98 | 98% |
| 6 Feb 2026, 11:19 | 93 | 93% |
| 7 Jan 2026, 12:08 | 81.8 | 81.8% |
| 2 Dec 2025, 11:50 | 83 | 83% |
| 7 Nov 2025, 11:23 | 40.8 | 40.8% |
| 24 Oct 2025, 12:41 | 60.4 | 60.4% |
| 23 Sep 2025, 12:38 | 40.7 | 40.7% |
| 28 Aug 2025, 13:34 | 45.1 | 45.1% |
| 2 Jul 2025, 08:58 | 33.4 | 33.4% |
| 16 Jun 2025, 12:58 | 55 | 55% |
| 27 May 2025, 14:13 | 59.5 | 59.5% |
| 6 Mar 2025, 11:28 | 99.6 | 99.6% |
| 12 Feb 2025, 11:05 | 91.4 | 91.4% |
| 29 Jan 2025, 10:33 | 92 | 92% |
| 5 Dec 2024, 13:25 | 86.5 | 86.5% |
| 18 Nov 2024, 09:55 | 50.1 | 50.1% |
| 25 Oct 2024, 13:00 | 62.2 | 62.2% |
| 18 Sep 2024, 12:57 | 45.2 | 45.2% |
| 19 Aug 2024, 10:37 | 48.7 | 48.7% |
| 29 Jul 2024, 10:04 | 44.4 | 44.4% |
| 25 Jun 2024, 13:27 | 72.4 | 72.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
3.32 mg/l
Sampled 30 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 30 Jun 2026, 14:35 | 3.32 | 3.32 mg/l |
| 14 Apr 2026, 14:09 | 12.3 | 12.3 mg/l |
| 4 Mar 2026, 12:43 | 11.8 | 11.8 mg/l |
| 6 Feb 2026, 11:19 | 11.5 | 11.5 mg/l |
| 7 Jan 2026, 12:08 | 11.4 | 11.4 mg/l |
| 2 Dec 2025, 11:50 | 9.74 | 9.74 mg/l |
| 7 Nov 2025, 11:23 | 4.31 | 4.31 mg/l |
| 24 Oct 2025, 12:41 | 6.84 | 6.84 mg/l |
| 23 Sep 2025, 12:38 | 4.35 | 4.35 mg/l |
| 28 Aug 2025, 13:34 | 4.48 | 4.48 mg/l |
| 2 Jul 2025, 08:58 | 3.29 | 3.29 mg/l |
| 16 Jun 2025, 12:58 | 5.3 | 5.3 mg/l |
| 27 May 2025, 14:13 | 6.2 | 6.2 mg/l |
| 6 Mar 2025, 11:28 | 12.5 | 12.5 mg/l |
| 12 Feb 2025, 11:05 | 11.8 | 11.8 mg/l |
| 29 Jan 2025, 10:33 | 11.4 | 11.4 mg/l |
| 5 Dec 2024, 13:25 | 9.96 | 9.96 mg/l |
| 18 Nov 2024, 09:55 | 6.23 | 6.23 mg/l |
| 25 Oct 2024, 13:00 | 6.63 | 6.63 mg/l |
| 18 Sep 2024, 12:57 | 4.53 | 4.53 mg/l |
| 19 Aug 2024, 10:37 | 4.9 | 4.9 mg/l |
| 29 Jul 2024, 10:04 | 4.49 | 4.49 mg/l |
| 25 Jun 2024, 13:27 | 6.88 | 6.88 mg/l |
Water temperature
code 0076 · °C
18.2 °C
Sampled 30 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 30 Jun 2026, 14:35 | 18.2 | 18.2 °C |
| 14 Apr 2026, 14:09 | 12.2 | 12.2 °C |
| 4 Mar 2026, 12:43 | 7.4 | 7.4 °C |
| 6 Feb 2026, 11:19 | 6.1 | 6.1 °C |
| 7 Jan 2026, 12:08 | 1.8 | 1.8 °C |
| 2 Dec 2025, 11:50 | 8.3 | 8.3 °C |
| 7 Nov 2025, 11:23 | 12.8 | 12.8 °C |
| 24 Oct 2025, 12:41 | 9.8 | 9.8 °C |
| 23 Sep 2025, 12:38 | 12.3 | 12.3 °C |
| 28 Aug 2025, 13:34 | 15.6 | 15.6 °C |
| 2 Jul 2025, 08:58 | 16 | 16 °C |
| 16 Jun 2025, 12:58 | 17 | 17 °C |
| 27 May 2025, 14:13 | 13.4 | 13.4 °C |
| 6 Mar 2025, 11:28 | 5.7 | 5.7 °C |
| 12 Feb 2025, 11:05 | 4.6 | 4.6 °C |
| 29 Jan 2025, 10:33 | 6.2 | 6.2 °C |
| 5 Dec 2024, 13:25 | 9.1 | 9.1 °C |
| 18 Nov 2024, 09:55 | 6 | 6 °C |
| 25 Oct 2024, 13:00 | 12.4 | 12.4 °C |
| 18 Sep 2024, 12:57 | 15.2 | 15.2 °C |
| 19 Aug 2024, 10:37 | 15 | 15 °C |
| 29 Jul 2024, 10:04 | 14.8 | 14.8 °C |
| 25 Jun 2024, 13:27 | 17.7 | 17.7 °C |
pH
code 0061
7.58
Sampled 30 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 30 Jun 2026, 14:35 | 7.58 | 7.58 |
| 14 Apr 2026, 14:09 | 7.88 | 7.88 |
| 4 Mar 2026, 12:43 | 8.17 | 8.17 |
| 6 Feb 2026, 11:19 | 8.09 | 8.09 |
| 7 Jan 2026, 12:08 | 7.63 | 7.63 |
| 2 Dec 2025, 11:50 | 7.73 | 7.73 |
| 7 Nov 2025, 11:23 | 7.51 | 7.51 |
| 24 Oct 2025, 12:41 | 7.73 | 7.73 |
| 23 Sep 2025, 12:38 | 7.62 | 7.62 |
| 28 Aug 2025, 13:34 | 7.3 | 7.3 |
| 2 Jul 2025, 08:58 | 7.42 | 7.42 |
| 16 Jun 2025, 12:58 | 7.8 | 7.8 |
| 27 May 2025, 14:13 | 7.69 | 7.69 |
| 6 Mar 2025, 11:28 | 8.05 | 8.05 |
| 12 Feb 2025, 11:05 | 8.25 | 8.25 |
| 29 Jan 2025, 10:33 | 7.98 | 7.98 |
| 5 Dec 2024, 13:25 | 7.88 | 7.88 |
| 18 Nov 2024, 09:55 | 7.72 | 7.72 |
| 25 Oct 2024, 13:00 | 7.61 | 7.61 |
| 18 Sep 2024, 12:57 | 7.46 | 7.46 |
| 19 Aug 2024, 10:37 | 7.7 | 7.7 |
| 29 Jul 2024, 10:04 | 7.54 | 7.54 |
| 25 Jun 2024, 13:27 | 7.7 | 7.7 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.19 mg/l
Sampled 30 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 30 Jun 2026, 14:35 | 0.19 | 0.19 mg/l |
| 14 Apr 2026, 14:09 | 0.066 | 0.066 mg/l |
| 4 Mar 2026, 12:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2026, 11:19 | 0.042 | 0.042 mg/l |
| 7 Jan 2026, 12:08 | 0.27 | 0.27 mg/l |
| 2 Dec 2025, 11:50 | 0.038 | 0.038 mg/l |
| 7 Nov 2025, 11:23 | 0.12 | 0.12 mg/l |
| 24 Oct 2025, 12:41 | 0.17 | 0.17 mg/l |
| 23 Sep 2025, 12:38 | 0.032 | 0.032 mg/l |
| 28 Aug 2025, 13:34 | 0.056 | 0.056 mg/l |
| 2 Jul 2025, 08:58 | 0.17 | 0.17 mg/l |
| 16 Jun 2025, 12:58 | 0.14 | 0.14 mg/l |
| 27 May 2025, 14:13 | 0.19 | 0.19 mg/l |
| 6 Mar 2025, 11:28 | 0.044 | 0.044 mg/l |
| 12 Feb 2025, 11:05 | 0.06 | 0.06 mg/l |
| 29 Jan 2025, 10:33 | 0.036 | 0.036 mg/l |
| 5 Dec 2024, 13:25 | 0.03 | 0.03 mg/l |
| 18 Nov 2024, 09:55 | 0.11 | 0.11 mg/l |
| 25 Oct 2024, 13:00 | 0.044 | 0.044 mg/l |
| 18 Sep 2024, 12:57 | 0.095 | 0.095 mg/l |
| 19 Aug 2024, 10:37 | 0.063 | 0.063 mg/l |
| 29 Jul 2024, 10:04 | 0.17 | 0.17 mg/l |
| 25 Jun 2024, 13:27 | 0.15 | 0.15 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.291 mg/l
Sampled 30 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 30 Jun 2026, 14:35 | 0.291 | 0.291 mg/l |
| 14 Apr 2026, 14:09 | 0.918 | 0.918 mg/l |
| 4 Mar 2026, 12:43 | 9.97 | 9.97 mg/l |
| 6 Feb 2026, 11:19 | 12 | 12 mg/l |
| 7 Jan 2026, 12:08 | 7.24 | 7.24 mg/l |
| 2 Dec 2025, 11:50 | 18.9 | 18.9 mg/l |
| 7 Nov 2025, 11:23 | 0.192 | 0.192 mg/l |
| 24 Oct 2025, 12:41 | 0.211 | 0.211 mg/l |
| 23 Sep 2025, 12:38 | <0.196 | below 0.196 mg/l (not detected above this) |
| 28 Aug 2025, 13:34 | <0.196 | below 0.196 mg/l (not detected above this) |
| 2 Jul 2025, 08:58 | <0.196 | below 0.196 mg/l (not detected above this) |
| 16 Jun 2025, 12:58 | 0.207 | 0.207 mg/l |
| 27 May 2025, 14:13 | 0.27 | 0.27 mg/l |
| 6 Mar 2025, 11:28 | 9.67 | 9.67 mg/l |
| 12 Feb 2025, 11:05 | 8.46 | 8.46 mg/l |
| 29 Jan 2025, 10:33 | 13 | 13 mg/l |
| 5 Dec 2024, 13:25 | 14 | 14 mg/l |
| 18 Nov 2024, 09:55 | 0.189 | 0.189 mg/l |
| 25 Oct 2024, 13:00 | 2.05 | 2.05 mg/l |
| 18 Sep 2024, 12:57 | 0.183 | 0.183 mg/l |
| 19 Aug 2024, 10:37 | 0.186 | 0.186 mg/l |
| 29 Jul 2024, 10:04 | 0.604 | 0.604 mg/l |
| 25 Jun 2024, 13:27 | 0.47 | 0.47 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.017 mg/l
Sampled 30 Jun 2026, 3 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 30 Jun 2026, 14:35 | 0.017 | 0.017 mg/l |
| 14 Apr 2026, 14:09 | 0.03 | 0.03 mg/l |
| 4 Mar 2026, 12:43 | 0.068 | 0.068 mg/l |
| 6 Feb 2026, 11:19 | 0.085 | 0.085 mg/l |
| 7 Jan 2026, 12:08 | 0.085 | 0.085 mg/l |
| 2 Dec 2025, 11:50 | 0.088 | 0.088 mg/l |
| 7 Nov 2025, 11:23 | 0.034 | 0.034 mg/l |
| 24 Oct 2025, 12:41 | 0.062 | 0.062 mg/l |
| 23 Sep 2025, 12:38 | 0.041 | 0.041 mg/l |
| 28 Aug 2025, 13:34 | 0.027 | 0.027 mg/l |
| 2 Jul 2025, 08:58 | 0.025 | 0.025 mg/l |
| 16 Jun 2025, 12:58 | 0.024 | 0.024 mg/l |
| 27 May 2025, 14:13 | 0.019 | 0.019 mg/l |
| 6 Mar 2025, 11:28 | 0.069 | 0.069 mg/l |
| 12 Feb 2025, 11:05 | 0.089 | 0.089 mg/l |
| 29 Jan 2025, 10:33 | 0.096 | 0.096 mg/l |
| 18 Nov 2024, 09:55 | 0.032 | 0.032 mg/l |
| 25 Oct 2024, 13:00 | 0.05 | 0.05 mg/l |
| 18 Sep 2024, 12:57 | 0.027 | 0.027 mg/l |
| 19 Aug 2024, 10:37 | 0.023 | 0.023 mg/l |
| 29 Jul 2024, 10:04 | 0.032 | 0.032 mg/l |
| 25 Jun 2024, 13:27 | 0.049 | 0.049 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
889 µS/cm
Sampled 30 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 30 Jun 2026, 14:35 | 889 | 889 µS/cm |
| 14 Apr 2026, 14:09 | 893 | 893 µS/cm |
| 4 Mar 2026, 12:43 | 864 | 864 µS/cm |
| 6 Feb 2026, 11:19 | 809 | 809 µS/cm |
| 7 Jan 2026, 12:08 | 1131 | 1131 µS/cm |
| 2 Dec 2025, 11:50 | 890 | 890 µS/cm |
| 7 Nov 2025, 11:23 | 855 | 855 µS/cm |
| 24 Oct 2025, 12:41 | 947 | 947 µS/cm |
| 23 Sep 2025, 12:38 | 724 | 724 µS/cm |
| 28 Aug 2025, 13:34 | 832 | 832 µS/cm |
| 2 Jul 2025, 08:58 | 888 | 888 µS/cm |
| 16 Jun 2025, 12:58 | 855 | 855 µS/cm |
| 27 May 2025, 14:13 | 815 | 815 µS/cm |
| 6 Mar 2025, 11:28 | 881 | 881 µS/cm |
| 12 Feb 2025, 11:05 | 913 | 913 µS/cm |
| 29 Jan 2025, 10:33 | 747 | 747 µS/cm |
| 5 Dec 2024, 13:25 | 840 | 840 µS/cm |
| 18 Nov 2024, 09:55 | 971 | 971 µS/cm |
| 25 Oct 2024, 13:00 | 920 | 920 µS/cm |
| 18 Sep 2024, 12:57 | 809 | 809 µS/cm |
| 19 Aug 2024, 10:37 | 1072 | 1072 µS/cm |
| 29 Jul 2024, 10:04 | 858 | 858 µS/cm |
| 25 Jun 2024, 13:27 | 875 | 875 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 | 23 | Jun 2024 – Jun 2026 | 35.3% 30 Jun 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Jun 2024 – Jun 2026 | 3.32 mg/l 30 Jun 2026 |
| Temperature of Water 0076 | River water | 23 | Jun 2024 – Jun 2026 | 18.2 °C 30 Jun 2026 |
| pH 0061 | River water | 23 | Jun 2024 – Jun 2026 | 7.58 30 Jun 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Jun 2024 – Jun 2026 | 0.19 mg/l 30 Jun 2026 |
| Nitrate as N 0117 | River water | 23 | Jun 2024 – Jun 2026 | 0.291 mg/l 30 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 22 | Jun 2024 – Jun 2026 | 0.017 mg/l 30 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Jun 2024 – Jun 2026 | 889 µS/cm 30 Jun 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 23 | Jun 2024 – Jun 2026 | 360 mg/l 30 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Jun 2024 – Jun 2026 | 0.00244 mg/l 30 Jun 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – Jun 2026 | below 1 mg/l 30 Jun 2026 |
| Nitrite as N 0118 | River water | 23 | Jun 2024 – Jun 2026 | 0.039 mg/l 30 Jun 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Jun 2024 – Jun 2026 | 0.33 mg/l 30 Jun 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.