Iron Mill Stream Prior to River Exe
EA name: IRON MILL STREAM PRIOR TO RIVER EXE
Environment Agency sampling point SW-70557003 · 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
- 9 Sep 2026, 13:5322 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 6 since 1 May 2026 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 293830, 120864As published, to the nearest 1 m. Open in a map
- River, by its own name
- Iron Mill Stream
- River, by the map
- Iron Mill StreamPlaced on the river its name gives, 25 m from the line.
- Next gauge downstream
- Stoodleigh On the River Exe · 6.5 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
96.8%
Sampled 9 Sep 2026, 22 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 13:53 | 96.8 | 96.8% |
| 7 Aug 2026, 13:43 | 96.8 | 96.8% |
| 3 Jul 2026, 13:50 | 100.2 | 100.2% |
| 12 Jun 2026, 11:10 | 98 | 98% |
| 29 May 2026, 10:53 | 98.7 | 98.7% |
| 1 May 2026, 13:12 | 102.1 | 102.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.95 mg/l
Sampled 9 Sep 2026, 22 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 13:53 | 9.95 | 9.95 mg/l |
| 7 Aug 2026, 13:43 | 9.8 | 9.8 mg/l |
| 3 Jul 2026, 13:50 | 9.5 | 9.5 mg/l |
| 12 Jun 2026, 11:10 | 10.3 | 10.3 mg/l |
| 29 May 2026, 10:53 | 9.61 | 9.61 mg/l |
| 1 May 2026, 13:12 | 10.8 | 10.8 mg/l |
Water temperature
code 0076 · °C
14 °C
Sampled 9 Sep 2026, 22 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 13:53 | 14 | 14 °C |
| 7 Aug 2026, 13:43 | 14.7 | 14.7 °C |
| 3 Jul 2026, 13:50 | 17.8 | 17.8 °C |
| 12 Jun 2026, 11:10 | 13.1 | 13.1 °C |
| 29 May 2026, 10:53 | 16.5 | 16.5 °C |
| 1 May 2026, 13:12 | 12.6 | 12.6 °C |
pH
code 0061
7.87
Sampled 9 Sep 2026, 22 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 13:53 | 7.87 | 7.87 |
| 7 Aug 2026, 13:43 | 7.79 | 7.79 |
| 3 Jul 2026, 13:50 | 7.54 | 7.54 |
| 12 Jun 2026, 11:10 | 7.75 | 7.75 |
| 29 May 2026, 10:53 | 7.9 | 7.9 |
| 1 May 2026, 13:12 | 8.04 | 8.04 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 9 Sep 2026, 22 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 13:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Aug 2026, 13:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jul 2026, 13:50 | 0.058 | 0.058 mg/l |
| 12 Jun 2026, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 May 2026, 10:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 May 2026, 13:12 | 0.033 | 0.033 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.886 mg/l
Sampled 9 Sep 2026, 22 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 13:53 | 0.886 | 0.886 mg/l |
| 7 Aug 2026, 13:43 | 0.826 | 0.826 mg/l |
| 3 Jul 2026, 13:50 | 0.797 | 0.797 mg/l |
| 12 Jun 2026, 11:10 | 0.966 | 0.966 mg/l |
| 29 May 2026, 10:53 | 1.09 | 1.09 mg/l |
| 1 May 2026, 13:12 | 0.896 | 0.896 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.023 mg/l
Sampled 9 Sep 2026, 22 days ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 13:53 | 0.023 | 0.023 mg/l |
| 3 Jul 2026, 13:50 | 0.027 | 0.027 mg/l |
| 12 Jun 2026, 11:10 | 0.028 | 0.028 mg/l |
| 29 May 2026, 10:53 | 0.021 | 0.021 mg/l |
| 1 May 2026, 13:12 | 0.013 | 0.013 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
206 µS/cm
Sampled 9 Sep 2026, 22 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 13:53 | 206 | 206 µS/cm |
| 7 Aug 2026, 13:43 | 190 | 190 µS/cm |
| 3 Jul 2026, 13:50 | 103 | 103 µS/cm |
| 12 Jun 2026, 11:10 | 139 | 139 µS/cm |
| 29 May 2026, 10:53 | 177 | 177 µS/cm |
| 1 May 2026, 13:12 | 150 | 150 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 6 | May 2026 – Sep 2026 | 96.8% 9 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 6 | May 2026 – Sep 2026 | 9.95 mg/l 9 Sep 2026 |
| Temperature of Water 0076 | River water | 6 | May 2026 – Sep 2026 | 14 °C 9 Sep 2026 |
| pH 0061 | River water | 6 | May 2026 – Sep 2026 | 7.87 9 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 6 | May 2026 – Sep 2026 | below 0.03 mg/l 9 Sep 2026 |
| Nitrate as N 0117 | River water | 6 | May 2026 – Sep 2026 | 0.886 mg/l 9 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 5 | May 2026 – Sep 2026 | 0.023 mg/l 9 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 6 | May 2026 – Sep 2026 | 206 µS/cm 9 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 6 | May 2026 – Sep 2026 | 54 mg/l 9 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 6 | May 2026 – Sep 2026 | below 0.00055 mg/l 9 Sep 2026 |
| Nitrite as N 0118 | River water | 6 | May 2026 – Sep 2026 | below 0.004 mg/l 9 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 6 | May 2026 – Sep 2026 | 0.89 mg/l 9 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.