Seven at Brawby
EA name: RSN1500 SEVEN AT BRAWBY (also listed as “RSN1500 RIVER SEVEN AT BRAWBY”)
Environment Agency sampling point NE-RSN1500 · 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
- 28 Apr 2026, 19:445 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 8 Oct 2026 and had nothing newer.
- Samples banked
- 6 since 6 Jan 2025 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Unplanned reactive monitoring (pollution incidents)
- Where
- National Grid 474252, 478185As published, to the nearest 1 m. Open in a map
- River, by its own name
- Seven
- River, by the map
- River SevenPlaced on the river its name gives, 11 m from the line.
- Next gauge downstream
- Howe Bridge On the River Rye · 11 km along the river
- Nearest gauge upstream
- Normanby On the River Seven · 5.6 km along the river
- Why it was sampled
- Monitoring (national agency policy) (3 samples)
Unplanned reactive monitoring (pollution incidents) (3 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
59.9%
Sampled 28 Apr 2026, 5 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Apr 2026, 19:44 | 59.9 | 59.9% |
| 28 Apr 2026, 19:35 | 48.8 | 48.8% |
| 28 Apr 2026, 19:23 | 40.4 | 40.4% |
| 10 Dec 2025, 14:03 | 89.3 | 89.3% |
| 14 Nov 2025, 12:41 | 91.7 | 91.7% |
| 6 Jan 2025, 10:22 | 99 | 99% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.4 mg/l
Sampled 10 Dec 2025, 10 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 14:03 | 10.4 | 10.4 mg/l |
| 14 Nov 2025, 12:41 | 10.6 | 10.6 mg/l |
| 6 Jan 2025, 10:22 | 13.1 | 13.1 mg/l |
Water temperature
code 0076 · °C
9.6 °C
Sampled 28 Apr 2026, 5 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Apr 2026, 19:44 | 9.6 | 9.6 °C |
| 28 Apr 2026, 19:35 | 10.5 | 10.5 °C |
| 28 Apr 2026, 19:23 | 11.6 | 11.6 °C |
| 10 Dec 2025, 14:03 | 8.5 | 8.5 °C |
| 14 Nov 2025, 12:41 | 9 | 9 °C |
| 6 Jan 2025, 10:22 | 3.6 | 3.6 °C |
pH
code 0061
7.98
Sampled 28 Apr 2026, 5 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Apr 2026, 19:44 | 7.98 | 7.98 |
| 28 Apr 2026, 19:35 | 7.84 | 7.84 |
| 28 Apr 2026, 19:23 | 7.79 | 7.79 |
| 10 Dec 2025, 14:03 | 7.23 | 7.23 |
| 14 Nov 2025, 12:41 | 7.23 | 7.23 |
| 6 Jan 2025, 10:22 | 7.64 | 7.64 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
6.5 mg/l
Sampled 28 Apr 2026, 5 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Apr 2026, 19:44 | 6.5 | 6.5 mg/l |
| 28 Apr 2026, 19:35 | 9.4 | 9.4 mg/l |
| 28 Apr 2026, 19:23 | 7.9 | 7.9 mg/l |
| 10 Dec 2025, 14:03 | 0.014 | 0.014 mg/l |
| 14 Nov 2025, 12:41 | 0.016 | 0.016 mg/l |
| 6 Jan 2025, 10:22 | 0.036 | 0.036 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.4 mg/l
Sampled 10 Dec 2025, 10 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 14:03 | 1.4 | 1.4 mg/l |
| 14 Nov 2025, 12:41 | 0.995 | 0.995 mg/l |
| 6 Jan 2025, 10:22 | 0.956 | 0.956 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
1.7 mg/l
Sampled 28 Apr 2026, 5 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Apr 2026, 19:44 | 1.7 | 1.7 mg/l |
| 28 Apr 2026, 19:35 | 1.7 | 1.7 mg/l |
| 28 Apr 2026, 19:23 | 3.1 | 3.1 mg/l |
| 10 Dec 2025, 14:03 | 0.024 | 0.024 mg/l |
| 14 Nov 2025, 12:41 | 0.014 | 0.014 mg/l |
| 6 Jan 2025, 10:22 | 0.012 | 0.012 mg/l |
Turbidity
code 6396 · NTU
39 NTU
Sampled 28 Apr 2026, 5 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Apr 2026, 19:44 | 39 | 39 NTU |
| 28 Apr 2026, 19:35 | 75 | 75 NTU |
| 28 Apr 2026, 19:23 | 26 | 26 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
969 µS/cm
Sampled 28 Apr 2026, 5 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Apr 2026, 19:44 | 969 | 969 µS/cm |
| 28 Apr 2026, 19:35 | 956 | 956 µS/cm |
| 28 Apr 2026, 19:23 | 1051 | 1051 µS/cm |
| 10 Dec 2025, 14:03 | 127 | 127 µS/cm |
| 14 Nov 2025, 12:41 | 131 | 131 µS/cm |
| 6 Jan 2025, 10:22 | 171 | 171 µS/cm |
Everything measured here
23 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 23 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 6 | Jan 2025 – Apr 2026 | 59.9% 28 Apr 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 3 | Jan 2025 – Dec 2025 | 10.4 mg/l 10 Dec 2025 |
| Temperature of Water 0076 | River water | 6 | Jan 2025 – Apr 2026 | 9.6 °C 28 Apr 2026 |
| pH 0061 | River water | 6 | Jan 2025 – Apr 2026 | 7.98 28 Apr 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 6 | Jan 2025 – Apr 2026 | 6.5 mg/l 28 Apr 2026 |
| Nitrate as N 0117 | River water | 3 | Jan 2025 – Dec 2025 | 1.4 mg/l 10 Dec 2025 |
| Orthophosphate, reactive as P 0180 | River water | 6 | Jan 2025 – Apr 2026 | 1.7 mg/l 28 Apr 2026 |
| Turbidity 6396 | River water | 3 | Apr 2026 – Apr 2026 | 39 NTU 28 Apr 2026 |
| Conductivity at 25 C 0077 | River water | 6 | Jan 2025 – Apr 2026 | 969 µS/cm 28 Apr 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 3 | Jan 2025 – Dec 2025 | 27 mg/l 10 Dec 2025 |
| Ammonia un-ionised as N 0119 | River water | 6 | Jan 2025 – Apr 2026 | 0.11 mg/l 28 Apr 2026 |
| BOD : 5 Day ATU 0085 | River water | 3 | Apr 2026 – Apr 2026 | 7.9 mg/l 28 Apr 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 3 | Jan 2025 – Dec 2025 | 10 mg/l 10 Dec 2025 |
| Chloride 0172 | River water | 6 | Jan 2025 – Apr 2026 | 57 mg/l 28 Apr 2026 |
| Flow Type 2896 | River water | 3 | Jan 2025 – Dec 2025 | High Flow 10 Dec 2025 |
| National Grid Reference : Whole : Field report 7434 | River water | 3 | Apr 2026 – Apr 2026 | 1 unitless value 28 Apr 2026 |
| Nitrite as N 0118 | River water | 3 | Jan 2025 – Dec 2025 | 0.0045 mg/l 10 Dec 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 6 | Jan 2025 – Apr 2026 | 0.55 mg/l 28 Apr 2026 |
| Phosphorus, Total as P 0348 | River water | 3 | Jan 2025 – Dec 2025 | 0.061 mg/l 10 Dec 2025 |
| Salinity : In Situ 7608 | River water | 3 | Apr 2026 – Apr 2026 | 0.48 parts per thousand 28 Apr 2026 |
| Silica, reactive as SiO2 0182 | River water | 3 | Jan 2025 – Dec 2025 | 6 mg/l 10 Dec 2025 |
| Solids, Suspended at 105 C 0135 | River water | 1 | Dec 2025 – Dec 2025 | 18 mg/l 10 Dec 2025 |
| Visible oil or grease, significant trace: Present/Not found (1/0) 0664 | River water | 3 | Apr 2026 – Apr 2026 | Not found 28 Apr 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.