River Glem A1092 Road Bridge
EA name: R.GLEM A1092 RD.BR.
Environment Agency sampling point AN-GL01 · 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
- 3 Sep 2026, 12:0435 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 12 since 19 Oct 2023 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives) · results completed 5 Sep 2026
- Where
- National Grid 584339, 246604As published, to the nearest 1 m. Open in a map
- River, by its own name
- Glem
- River, by the map
- River GlemPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Bures Bridge On the River Stour · 20 km along the river
- Nearest gauge upstream
- GLEMSFORD FGS DUAL COMMS 1.0 km along the riverGlemsford On the River Glem · 1.0 km along the river
- Why it was sampled
- Monitoring (national agency policy) (6 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Results here were completed a median of 9 days after the sample was taken (2 to 47 days, 4 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
87.6%
Sampled 3 Sep 2026, 35 days ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 12:04 | 87.6 | 87.6% |
| 11 Aug 2026, 11:42 | 87.9 | 87.9% |
| 15 Jul 2026, 11:13 | 83 | 83% |
| 25 Jun 2026, 11:32 | 75.5 | 75.5% |
| 28 May 2026, 13:22 | 88.4 | 88.4% |
| 24 Apr 2026, 10:37 | 88.8 | 88.8% |
| 18 Mar 2024, 11:47 | 95.2 | 95.2% |
| 2 Feb 2024, 11:32 | 87.9 | 87.9% |
| 4 Jan 2024, 12:46 | 92.9 | 92.9% |
| 6 Dec 2023, 12:21 | 90 | 90% |
| 6 Nov 2023, 12:48 | 87.2 | 87.2% |
| 19 Oct 2023, 12:34 | 86.6 | 86.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.99 mg/l
Sampled 3 Sep 2026, 35 days ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 12:04 | 8.99 | 8.99 mg/l |
| 11 Aug 2026, 11:42 | 9.1 | 9.1 mg/l |
| 15 Jul 2026, 11:13 | 8.42 | 8.42 mg/l |
| 25 Jun 2026, 11:32 | 7.1 | 7.1 mg/l |
| 28 May 2026, 13:22 | 8.54 | 8.54 mg/l |
| 24 Apr 2026, 10:37 | 9.77 | 9.77 mg/l |
| 18 Mar 2024, 11:47 | 10.6 | 10.6 mg/l |
| 2 Feb 2024, 11:32 | 10.5 | 10.5 mg/l |
| 4 Jan 2024, 12:46 | 11 | 11 mg/l |
| 6 Dec 2023, 12:21 | 11.4 | 11.4 mg/l |
| 6 Nov 2023, 12:48 | 9.78 | 9.78 mg/l |
| 19 Oct 2023, 12:34 | 8.96 | 8.96 mg/l |
Water temperature
code 0076 · °C
14.1 °C
Sampled 3 Sep 2026, 35 days ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 12:04 | 14.1 | 14.1 °C |
| 11 Aug 2026, 11:42 | 13.7 | 13.7 °C |
| 15 Jul 2026, 11:13 | 14.6 | 14.6 °C |
| 25 Jun 2026, 11:32 | 18.2 | 18.2 °C |
| 28 May 2026, 13:22 | 16.9 | 16.9 °C |
| 24 Apr 2026, 10:37 | 11 | 11 °C |
| 18 Mar 2024, 11:47 | 10.6 | 10.6 °C |
| 2 Feb 2024, 11:32 | 7.7 | 7.7 °C |
| 4 Jan 2024, 12:46 | 7.8 | 7.8 °C |
| 6 Dec 2023, 12:21 | 5.4 | 5.4 °C |
| 6 Nov 2023, 12:48 | 10.2 | 10.2 °C |
| 19 Oct 2023, 12:34 | 13.7 | 13.7 °C |
pH
code 0061
7.73
Sampled 3 Sep 2026, 35 days ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 12:04 | 7.73 | 7.73 |
| 11 Aug 2026, 11:42 | 7.72 | 7.72 |
| 15 Jul 2026, 11:13 | 7.63 | 7.63 |
| 25 Jun 2026, 11:32 | 7.66 | 7.66 |
| 28 May 2026, 13:22 | 7.73 | 7.73 |
| 24 Apr 2026, 10:37 | 7.78 | 7.78 |
| 18 Mar 2024, 11:47 | 7.98 | 7.98 |
| 2 Feb 2024, 11:32 | 7.95 | 7.95 |
| 4 Jan 2024, 12:46 | 8.16 | 8.16 |
| 6 Dec 2023, 12:21 | 7.97 | 7.97 |
| 6 Nov 2023, 12:48 | 7.96 | 7.96 |
| 19 Oct 2023, 12:34 | 7.89 | 7.89 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 3 Sep 2026, 35 days ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 12:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Aug 2026, 11:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jul 2026, 11:13 | 0.061 | 0.061 mg/l |
| 25 Jun 2026, 11:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 May 2026, 13:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Apr 2026, 10:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2024, 11:47 | 0.03 | 0.03 mg/l |
| 2 Feb 2024, 11:32 | 0.05 | 0.05 mg/l |
| 4 Jan 2024, 12:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Dec 2023, 12:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Nov 2023, 12:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Oct 2023, 12:34 | 0.032 | 0.032 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
5.69 mg/l
Sampled 3 Sep 2026, 35 days ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 12:04 | 5.69 | 5.69 mg/l |
| 11 Aug 2026, 11:42 | 5.49 | 5.49 mg/l |
| 15 Jul 2026, 11:13 | 5.32 | 5.32 mg/l |
| 25 Jun 2026, 11:32 | 7.07 | 7.07 mg/l |
| 28 May 2026, 13:22 | 5.56 | 5.56 mg/l |
| 24 Apr 2026, 10:37 | 6.48 | 6.48 mg/l |
| 18 Mar 2024, 11:47 | 5.58 | 5.58 mg/l |
| 2 Feb 2024, 11:32 | 6.17 | 6.17 mg/l |
| 4 Jan 2024, 12:46 | 5.79 | 5.79 mg/l |
| 6 Dec 2023, 12:21 | 7.48 | 7.48 mg/l |
| 6 Nov 2023, 12:48 | 7.27 | 7.27 mg/l |
| 19 Oct 2023, 12:34 | 8.77 | 8.77 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.036 mg/l
Sampled 3 Sep 2026, 35 days ago · 11 results banked
Every result (11)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 12:04 | 0.036 | 0.036 mg/l |
| 15 Jul 2026, 11:13 | 0.035 | 0.035 mg/l |
| 25 Jun 2026, 11:32 | 0.074 | 0.074 mg/l |
| 28 May 2026, 13:22 | 0.066 | 0.066 mg/l |
| 24 Apr 2026, 10:37 | 0.014 | 0.014 mg/l |
| 18 Mar 2024, 11:47 | 0.055 | 0.055 mg/l |
| 2 Feb 2024, 11:32 | 0.07 | 0.07 mg/l |
| 4 Jan 2024, 12:46 | 0.064 | 0.064 mg/l |
| 6 Dec 2023, 12:21 | 0.059 | 0.059 mg/l |
| 6 Nov 2023, 12:48 | 0.06 | 0.06 mg/l |
| 19 Oct 2023, 12:34 | 0.14 | 0.14 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1219 µS/cm
Sampled 3 Sep 2026, 35 days ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 12:04 | 1219 | 1219 µS/cm |
| 11 Aug 2026, 11:42 | 1208 | 1208 µS/cm |
| 15 Jul 2026, 11:13 | 1178 | 1178 µS/cm |
| 25 Jun 2026, 11:32 | 876 | 876 µS/cm |
| 28 May 2026, 13:22 | 862 | 862 µS/cm |
| 24 Apr 2026, 10:37 | 850 | 850 µS/cm |
| 18 Mar 2024, 11:47 | 756 | 756 µS/cm |
| 2 Feb 2024, 11:32 | 818 | 818 µS/cm |
| 4 Jan 2024, 12:46 | 631 | 631 µS/cm |
| 6 Dec 2023, 12:21 | 727 | 727 µS/cm |
| 6 Nov 2023, 12:48 | 698 | 698 µS/cm |
| 19 Oct 2023, 12:34 | 672 | 672 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 | 12 | Oct 2023 – Sep 2026 | 87.6% 3 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 12 | Oct 2023 – Sep 2026 | 8.99 mg/l 3 Sep 2026 |
| Temperature of Water 0076 | River water | 12 | Oct 2023 – Sep 2026 | 14.1 °C 3 Sep 2026 |
| pH 0061 | River water | 12 | Oct 2023 – Sep 2026 | 7.73 3 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 12 | Oct 2023 – Sep 2026 | below 0.03 mg/l 3 Sep 2026 |
| Nitrate as N 0117 | River water | 12 | Oct 2023 – Sep 2026 | 5.69 mg/l 3 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 11 | Oct 2023 – Sep 2026 | 0.036 mg/l 3 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 12 | Oct 2023 – Sep 2026 | 1219 µS/cm 3 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 12 | Oct 2023 – Sep 2026 | 290 mg/l 3 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 12 | Oct 2023 – Sep 2026 | below 0.0004 mg/l 3 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 6 | Oct 2023 – Mar 2024 | 1.1 mg/l 18 Mar 2024 |
| Nitrite as N 0118 | River water | 12 | Oct 2023 – Sep 2026 | 0.0073 mg/l 3 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 12 | Oct 2023 – Sep 2026 | 5.7 mg/l 3 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.