Thame at Stone Bridge, Aylesbury

EA name: THAME AT STONE BRIDGE, AYLESBURY
Environment Agency sampling point TH-PTAR0028 · 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
18 Aug 2026, 10:4144 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
36 since 19 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 479600, 215200As published, to the nearest 100 m (so up to about 70 m out). Open in a map
River, by its own name
Thame
River, by the map
River ThamePlaced on the river its name gives, 21 m from the line.
Next gauge downstream
Aylesbury Thame On the River Thame · 1.0 km along the river
Nearest gauge upstream
Rowsham Bridge On the River Thame · 10 km along the river
Why it was sampled
Environmental monitoring statutory (EU directives) (34 samples)
Monitoring (national agency policy) (2 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

50%

Sampled 18 Aug 2026, 44 days ago · 36 results banked

406080100120%20242025202619 Oct 2023, 11:41: 55.6%21 Nov 2023, 11:16: 71.6%8 Dec 2023, 09:28: 84.4%27 Dec 2023, 10:10: 80.8%30 Jan 2024, 11:34: 88.2%23 Feb 2024, 10:29: 86.7%19 Mar 2024, 11:44: 90.2%25 Apr 2024, 10:35: 108.8%13 May 2024, 10:15: 87.8%18 Jun 2024, 11:39: 84.5%29 Jul 2024, 10:24: 72.6%27 Aug 2024, 11:44: 64.8%19 Sep 2024, 11:10: 75%15 Oct 2024, 11:36: 74.8%22 Nov 2024, 14:04: 86%17 Dec 2024, 11:48: 87.1%21 Jan 2025, 11:33: 96.8%10 Feb 2025, 11:16: 94.4%13 Mar 2025, 11:26: 99.3%9 Apr 2025, 12:25: 116.5%15 May 2025, 09:27: 67.4%9 Jun 2025, 10:22: 72.7%1 Jul 2025, 09:27: 57.3%11 Aug 2025, 10:02: 66.1%26 Sep 2025, 12:10: 71.5%22 Oct 2025, 10:10: 56.6%10 Nov 2025, 12:37: 61.6%1 Dec 2025, 12:00: 76.4%16 Jan 2026, 10:34: 88.7%4 Feb 2026, 10:57: 83.9%6 Mar 2026, 11:02: 91%17 Apr 2026, 11:23: 86.9%27 May 2026, 12:30: 75.7%29 Jun 2026, 10:37: 54.1%29 Jul 2026, 12:43: 57.3%18 Aug 2026, 10:41: 50%
Every result (36)
SampledResult as publishedReads as
18 Aug 2026, 10:4150 50%
29 Jul 2026, 12:4357.3 57.3%
29 Jun 2026, 10:3754.1 54.1%
27 May 2026, 12:3075.7 75.7%
17 Apr 2026, 11:2386.9 86.9%
6 Mar 2026, 11:0291 91%
4 Feb 2026, 10:5783.9 83.9%
16 Jan 2026, 10:3488.7 88.7%
1 Dec 2025, 12:0076.4 76.4%
10 Nov 2025, 12:3761.6 61.6%
22 Oct 2025, 10:1056.6 56.6%
26 Sep 2025, 12:1071.5 71.5%
11 Aug 2025, 10:0266.1 66.1%
1 Jul 2025, 09:2757.3 57.3%
9 Jun 2025, 10:2272.7 72.7%
15 May 2025, 09:2767.4 67.4%
9 Apr 2025, 12:25116.5 116.5%
13 Mar 2025, 11:2699.3 99.3%
10 Feb 2025, 11:1694.4 94.4%
21 Jan 2025, 11:3396.8 96.8%
17 Dec 2024, 11:4887.1 87.1%
22 Nov 2024, 14:0486 86%
15 Oct 2024, 11:3674.8 74.8%
19 Sep 2024, 11:1075 75%
27 Aug 2024, 11:4464.8 64.8%
29 Jul 2024, 10:2472.6 72.6%
18 Jun 2024, 11:3984.5 84.5%
13 May 2024, 10:1587.8 87.8%
25 Apr 2024, 10:35108.8 108.8%
19 Mar 2024, 11:4490.2 90.2%
23 Feb 2024, 10:2986.7 86.7%
30 Jan 2024, 11:3488.2 88.2%
27 Dec 2023, 10:1080.8 80.8%
8 Dec 2023, 09:2884.4 84.4%
21 Nov 2023, 11:1671.6 71.6%
19 Oct 2023, 11:4155.6 55.6%

Dissolved oxygen

as O2 · code 9924 · mg/l

4.72 mg/l

Sampled 18 Aug 2026, 44 days ago · 36 results banked

2.557.51012.515mg/l20242025202619 Oct 2023, 11:41: 5.86 mg/l21 Nov 2023, 11:16: 8.14 mg/l8 Dec 2023, 09:28: 10.7 mg/l27 Dec 2023, 10:10: 9.44 mg/l30 Jan 2024, 11:34: 10.5 mg/l23 Feb 2024, 10:29: 10.8 mg/l19 Mar 2024, 11:44: 10 mg/l25 Apr 2024, 10:35: 12.6 mg/l13 May 2024, 10:15: 8.5 mg/l18 Jun 2024, 11:39: 8.37 mg/l29 Jul 2024, 10:24: 7.01 mg/l27 Aug 2024, 11:44: 6.37 mg/l19 Sep 2024, 11:10: 7.61 mg/l15 Oct 2024, 11:36: 8.14 mg/l22 Nov 2024, 14:04: 11 mg/l17 Dec 2024, 11:48: 10.3 mg/l21 Jan 2025, 11:33: 12.8 mg/l10 Feb 2025, 11:16: 12.3 mg/l13 Mar 2025, 11:26: 12.4 mg/l9 Apr 2025, 12:25: 13 mg/l15 May 2025, 09:27: 7.05 mg/l9 Jun 2025, 10:22: 7.46 mg/l1 Jul 2025, 09:27: 5.04 mg/l11 Aug 2025, 10:02: 6.48 mg/l26 Sep 2025, 12:10: 8.06 mg/l22 Oct 2025, 10:10: 6.17 mg/l10 Nov 2025, 12:37: 6.73 mg/l1 Dec 2025, 12:00: 9.1 mg/l16 Jan 2026, 10:34: 11.3 mg/l4 Feb 2026, 10:57: 10.4 mg/l6 Mar 2026, 11:02: 10.6 mg/l17 Apr 2026, 11:23: 9.39 mg/l27 May 2026, 12:30: 6.71 mg/l29 Jun 2026, 10:37: 5.09 mg/l29 Jul 2026, 12:43: 5.28 mg/l18 Aug 2026, 10:41: 4.72 mg/l
Every result (36)
SampledResult as publishedReads as
18 Aug 2026, 10:414.72 4.72 mg/l
29 Jul 2026, 12:435.28 5.28 mg/l
29 Jun 2026, 10:375.09 5.09 mg/l
27 May 2026, 12:306.71 6.71 mg/l
17 Apr 2026, 11:239.39 9.39 mg/l
6 Mar 2026, 11:0210.6 10.6 mg/l
4 Feb 2026, 10:5710.4 10.4 mg/l
16 Jan 2026, 10:3411.3 11.3 mg/l
1 Dec 2025, 12:009.1 9.1 mg/l
10 Nov 2025, 12:376.73 6.73 mg/l
22 Oct 2025, 10:106.17 6.17 mg/l
26 Sep 2025, 12:108.06 8.06 mg/l
11 Aug 2025, 10:026.48 6.48 mg/l
1 Jul 2025, 09:275.04 5.04 mg/l
9 Jun 2025, 10:227.46 7.46 mg/l
15 May 2025, 09:277.05 7.05 mg/l
9 Apr 2025, 12:2513 13 mg/l
13 Mar 2025, 11:2612.4 12.4 mg/l
10 Feb 2025, 11:1612.3 12.3 mg/l
21 Jan 2025, 11:3312.8 12.8 mg/l
17 Dec 2024, 11:4810.3 10.3 mg/l
22 Nov 2024, 14:0411 11 mg/l
15 Oct 2024, 11:368.14 8.14 mg/l
19 Sep 2024, 11:107.61 7.61 mg/l
27 Aug 2024, 11:446.37 6.37 mg/l
29 Jul 2024, 10:247.01 7.01 mg/l
18 Jun 2024, 11:398.37 8.37 mg/l
13 May 2024, 10:158.5 8.5 mg/l
25 Apr 2024, 10:3512.6 12.6 mg/l
19 Mar 2024, 11:4410 10 mg/l
23 Feb 2024, 10:2910.8 10.8 mg/l
30 Jan 2024, 11:3410.5 10.5 mg/l
27 Dec 2023, 10:109.44 9.44 mg/l
8 Dec 2023, 09:2810.7 10.7 mg/l
21 Nov 2023, 11:168.14 8.14 mg/l
19 Oct 2023, 11:415.86 5.86 mg/l

Water temperature

code 0076 · °C

18 °C

Sampled 18 Aug 2026, 44 days ago · 36 results banked

0510152025°C20242025202619 Oct 2023, 11:41: 12.9 °C21 Nov 2023, 11:16: 9.6 °C8 Dec 2023, 09:28: 5.4 °C27 Dec 2023, 10:10: 8.5 °C30 Jan 2024, 11:34: 7.9 °C23 Feb 2024, 10:29: 5.9 °C19 Mar 2024, 11:44: 10.6 °C25 Apr 2024, 10:35: 8.8 °C13 May 2024, 10:15: 16.8 °C18 Jun 2024, 11:39: 15.7 °C29 Jul 2024, 10:24: 16.9 °C27 Aug 2024, 11:44: 16.1 °C19 Sep 2024, 11:10: 14.6 °C15 Oct 2024, 11:36: 11.5 °C22 Nov 2024, 14:04: 4.9 °C17 Dec 2024, 11:48: 8 °C21 Jan 2025, 11:33: 3.6 °C10 Feb 2025, 11:16: 4.3 °C13 Mar 2025, 11:26: 5.8 °C9 Apr 2025, 12:25: 10.5 °C15 May 2025, 09:27: 13.2 °C9 Jun 2025, 10:22: 14.1 °C1 Jul 2025, 09:27: 21.6 °C11 Aug 2025, 10:02: 16.2 °C26 Sep 2025, 12:10: 10 °C22 Oct 2025, 10:10: 11.4 °C10 Nov 2025, 12:37: 11.3 °C1 Dec 2025, 12:00: 7.7 °C16 Jan 2026, 10:34: 5 °C4 Feb 2026, 10:57: 6.3 °C6 Mar 2026, 11:02: 8.7 °C17 Apr 2026, 11:23: 11.8 °C27 May 2026, 12:30: 21.2 °C29 Jun 2026, 10:37: 18.2 °C29 Jul 2026, 12:43: 19.2 °C18 Aug 2026, 10:41: 18 °C
Every result (36)
SampledResult as publishedReads as
18 Aug 2026, 10:4118 18 °C
29 Jul 2026, 12:4319.2 19.2 °C
29 Jun 2026, 10:3718.2 18.2 °C
27 May 2026, 12:3021.2 21.2 °C
17 Apr 2026, 11:2311.8 11.8 °C
6 Mar 2026, 11:028.7 8.7 °C
4 Feb 2026, 10:576.3 6.3 °C
16 Jan 2026, 10:345 5 °C
1 Dec 2025, 12:007.7 7.7 °C
10 Nov 2025, 12:3711.3 11.3 °C
22 Oct 2025, 10:1011.4 11.4 °C
26 Sep 2025, 12:1010 10 °C
11 Aug 2025, 10:0216.2 16.2 °C
1 Jul 2025, 09:2721.6 21.6 °C
9 Jun 2025, 10:2214.1 14.1 °C
15 May 2025, 09:2713.2 13.2 °C
9 Apr 2025, 12:2510.5 10.5 °C
13 Mar 2025, 11:265.8 5.8 °C
10 Feb 2025, 11:164.3 4.3 °C
21 Jan 2025, 11:333.6 3.6 °C
17 Dec 2024, 11:488 8 °C
22 Nov 2024, 14:044.9 4.9 °C
15 Oct 2024, 11:3611.5 11.5 °C
19 Sep 2024, 11:1014.6 14.6 °C
27 Aug 2024, 11:4416.1 16.1 °C
29 Jul 2024, 10:2416.9 16.9 °C
18 Jun 2024, 11:3915.7 15.7 °C
13 May 2024, 10:1516.8 16.8 °C
25 Apr 2024, 10:358.8 8.8 °C
19 Mar 2024, 11:4410.6 10.6 °C
23 Feb 2024, 10:295.9 5.9 °C
30 Jan 2024, 11:347.9 7.9 °C
27 Dec 2023, 10:108.5 8.5 °C
8 Dec 2023, 09:285.4 5.4 °C
21 Nov 2023, 11:169.6 9.6 °C
19 Oct 2023, 11:4112.9 12.9 °C

pH

code 0061

7.5

Sampled 18 Aug 2026, 44 days ago · 36 results banked

7.257.57.7588.258.520242025202619 Oct 2023, 11:41: 7.6121 Nov 2023, 11:16: 7.748 Dec 2023, 09:28: 7.8527 Dec 2023, 10:10: 7.9530 Jan 2024, 11:34: 8.0723 Feb 2024, 10:29: 8.0419 Mar 2024, 11:44: 8.0425 Apr 2024, 10:35: 8.3313 May 2024, 10:15: 8.0918 Jun 2024, 11:39: 7.9329 Jul 2024, 10:24: 7.7427 Aug 2024, 11:44: 7.5819 Sep 2024, 11:10: 7.6715 Oct 2024, 11:36: 7.7322 Nov 2024, 14:04: 8.0217 Dec 2024, 11:48: 8.0221 Jan 2025, 11:33: 8.1310 Feb 2025, 11:16: 7.9213 Mar 2025, 11:26: 8.319 Apr 2025, 12:25: 8.3815 May 2025, 09:27: 7.899 Jun 2025, 10:22: 7.711 Jul 2025, 09:27: 7.4911 Aug 2025, 10:02: 7.5126 Sep 2025, 12:10: 7.8322 Oct 2025, 10:10: 7.6310 Nov 2025, 12:37: 8.181 Dec 2025, 12:00: 7.7716 Jan 2026, 10:34: 7.84 Feb 2026, 10:57: 7.96 Mar 2026, 11:02: 8.0617 Apr 2026, 11:23: 8.0327 May 2026, 12:30: 7.6429 Jun 2026, 10:37: 7.5729 Jul 2026, 12:43: 7.4918 Aug 2026, 10:41: 7.5
Every result (36)
SampledResult as publishedReads as
18 Aug 2026, 10:417.5 7.5
29 Jul 2026, 12:437.49 7.49
29 Jun 2026, 10:377.57 7.57
27 May 2026, 12:307.64 7.64
17 Apr 2026, 11:238.03 8.03
6 Mar 2026, 11:028.06 8.06
4 Feb 2026, 10:577.9 7.9
16 Jan 2026, 10:347.8 7.8
1 Dec 2025, 12:007.77 7.77
10 Nov 2025, 12:378.18 8.18
22 Oct 2025, 10:107.63 7.63
26 Sep 2025, 12:107.83 7.83
11 Aug 2025, 10:027.51 7.51
1 Jul 2025, 09:277.49 7.49
9 Jun 2025, 10:227.71 7.71
15 May 2025, 09:277.89 7.89
9 Apr 2025, 12:258.38 8.38
13 Mar 2025, 11:268.31 8.31
10 Feb 2025, 11:167.92 7.92
21 Jan 2025, 11:338.13 8.13
17 Dec 2024, 11:488.02 8.02
22 Nov 2024, 14:048.02 8.02
15 Oct 2024, 11:367.73 7.73
19 Sep 2024, 11:107.67 7.67
27 Aug 2024, 11:447.58 7.58
29 Jul 2024, 10:247.74 7.74
18 Jun 2024, 11:397.93 7.93
13 May 2024, 10:158.09 8.09
25 Apr 2024, 10:358.33 8.33
19 Mar 2024, 11:448.04 8.04
23 Feb 2024, 10:298.04 8.04
30 Jan 2024, 11:348.07 8.07
27 Dec 2023, 10:107.95 7.95
8 Dec 2023, 09:287.85 7.85
21 Nov 2023, 11:167.74 7.74
19 Oct 2023, 11:417.61 7.61

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.03 mg/l

Sampled 18 Aug 2026, 44 days ago · 36 results banked

0.020.040.060.080.1mg/l20242025202619 Oct 2023, 11:41: below 0.03 mg/l (not detected above this)21 Nov 2023, 11:16: below 0.03 mg/l (not detected above this)8 Dec 2023, 09:28: below 0.03 mg/l (not detected above this)27 Dec 2023, 10:10: 0.049 mg/l30 Jan 2024, 11:34: 0.056 mg/l23 Feb 2024, 10:29: 0.07 mg/l19 Mar 2024, 11:44: 0.036 mg/l25 Apr 2024, 10:35: below 0.03 mg/l (not detected above this)13 May 2024, 10:15: 0.032 mg/l18 Jun 2024, 11:39: below 0.03 mg/l (not detected above this)29 Jul 2024, 10:24: below 0.03 mg/l (not detected above this)27 Aug 2024, 11:44: below 0.03 mg/l (not detected above this)19 Sep 2024, 11:10: below 0.03 mg/l (not detected above this)15 Oct 2024, 11:36: below 0.03 mg/l (not detected above this)22 Nov 2024, 14:04: below 0.03 mg/l (not detected above this)17 Dec 2024, 11:48: 0.038 mg/l21 Jan 2025, 11:33: 0.051 mg/l10 Feb 2025, 11:16: 0.045 mg/l13 Mar 2025, 11:26: below 0.03 mg/l (not detected above this)9 Apr 2025, 12:25: below 0.03 mg/l (not detected above this)15 May 2025, 09:27: 0.082 mg/l9 Jun 2025, 10:22: below 0.03 mg/l (not detected above this)1 Jul 2025, 09:27: 0.048 mg/l11 Aug 2025, 10:02: below 0.03 mg/l (not detected above this)26 Sep 2025, 12:10: below 0.03 mg/l (not detected above this)22 Oct 2025, 10:10: below 0.03 mg/l (not detected above this)10 Nov 2025, 12:37: below 0.03 mg/l (not detected above this)1 Dec 2025, 12:00: below 0.03 mg/l (not detected above this)16 Jan 2026, 10:34: below 0.03 mg/l (not detected above this)4 Feb 2026, 10:57: below 0.03 mg/l (not detected above this)6 Mar 2026, 11:02: below 0.03 mg/l (not detected above this)17 Apr 2026, 11:23: below 0.03 mg/l (not detected above this)27 May 2026, 12:30: 0.068 mg/l29 Jun 2026, 10:37: 0.069 mg/l29 Jul 2026, 12:43: 0.053 mg/l18 Aug 2026, 10:41: 0.03 mg/l
Every result (36)
SampledResult as publishedReads as
18 Aug 2026, 10:410.03 0.03 mg/l
29 Jul 2026, 12:430.053 0.053 mg/l
29 Jun 2026, 10:370.069 0.069 mg/l
27 May 2026, 12:300.068 0.068 mg/l
17 Apr 2026, 11:23<0.03 below 0.03 mg/l (not detected above this)
6 Mar 2026, 11:02<0.03 below 0.03 mg/l (not detected above this)
4 Feb 2026, 10:57<0.03 below 0.03 mg/l (not detected above this)
16 Jan 2026, 10:34<0.03 below 0.03 mg/l (not detected above this)
1 Dec 2025, 12:00<0.03 below 0.03 mg/l (not detected above this)
10 Nov 2025, 12:37<0.03 below 0.03 mg/l (not detected above this)
22 Oct 2025, 10:10<0.03 below 0.03 mg/l (not detected above this)
26 Sep 2025, 12:10<0.03 below 0.03 mg/l (not detected above this)
11 Aug 2025, 10:02<0.03 below 0.03 mg/l (not detected above this)
1 Jul 2025, 09:270.048 0.048 mg/l
9 Jun 2025, 10:22<0.03 below 0.03 mg/l (not detected above this)
15 May 2025, 09:270.082 0.082 mg/l
9 Apr 2025, 12:25<0.03 below 0.03 mg/l (not detected above this)
13 Mar 2025, 11:26<0.03 below 0.03 mg/l (not detected above this)
10 Feb 2025, 11:160.045 0.045 mg/l
21 Jan 2025, 11:330.051 0.051 mg/l
17 Dec 2024, 11:480.038 0.038 mg/l
22 Nov 2024, 14:04<0.03 below 0.03 mg/l (not detected above this)
15 Oct 2024, 11:36<0.03 below 0.03 mg/l (not detected above this)
19 Sep 2024, 11:10<0.03 below 0.03 mg/l (not detected above this)
27 Aug 2024, 11:44<0.03 below 0.03 mg/l (not detected above this)
29 Jul 2024, 10:24<0.03 below 0.03 mg/l (not detected above this)
18 Jun 2024, 11:39<0.03 below 0.03 mg/l (not detected above this)
13 May 2024, 10:150.032 0.032 mg/l
25 Apr 2024, 10:35<0.03 below 0.03 mg/l (not detected above this)
19 Mar 2024, 11:440.036 0.036 mg/l
23 Feb 2024, 10:290.07 0.07 mg/l
30 Jan 2024, 11:340.056 0.056 mg/l
27 Dec 2023, 10:100.049 0.049 mg/l
8 Dec 2023, 09:28<0.03 below 0.03 mg/l (not detected above this)
21 Nov 2023, 11:16<0.03 below 0.03 mg/l (not detected above this)
19 Oct 2023, 11:41<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

0.226 mg/l

Sampled 18 Aug 2026, 44 days ago · 36 results banked

051015mg/l20242025202619 Oct 2023, 11:41: 6.77 mg/l21 Nov 2023, 11:16: 5.17 mg/l8 Dec 2023, 09:28: 5.68 mg/l27 Dec 2023, 10:10: 4.46 mg/l30 Jan 2024, 11:34: 5.07 mg/l23 Feb 2024, 10:29: 2.68 mg/l19 Mar 2024, 11:44: 4.28 mg/l25 Apr 2024, 10:35: 4.49 mg/l13 May 2024, 10:15: 3.38 mg/l18 Jun 2024, 11:39: 2.38 mg/l29 Jul 2024, 10:24: 1.58 mg/l27 Aug 2024, 11:44: 1.69 mg/l19 Sep 2024, 11:10: 1.69 mg/l15 Oct 2024, 11:36: 4.69 mg/l22 Nov 2024, 14:04: 5.39 mg/l17 Dec 2024, 11:48: 4.67 mg/l21 Jan 2025, 11:33: 5.17 mg/l10 Feb 2025, 11:16: 3.59 mg/l13 Mar 2025, 11:26: 5.38 mg/l9 Apr 2025, 12:25: 4.39 mg/l15 May 2025, 09:27: 2.36 mg/l9 Jun 2025, 10:22: 1.59 mg/l1 Jul 2025, 09:27: 0.549 mg/l11 Aug 2025, 10:02: 0.656 mg/l26 Sep 2025, 12:10: 1.2 mg/l22 Oct 2025, 10:10: 1.1 mg/l10 Nov 2025, 12:37: 1.7 mg/l1 Dec 2025, 12:00: 13 mg/l16 Jan 2026, 10:34: 5.29 mg/l4 Feb 2026, 10:57: 6.49 mg/l6 Mar 2026, 11:02: 5.69 mg/l17 Apr 2026, 11:23: 4.08 mg/l27 May 2026, 12:30: 0.978 mg/l29 Jun 2026, 10:37: 0.416 mg/l29 Jul 2026, 12:43: 0.369 mg/l18 Aug 2026, 10:41: 0.226 mg/l
Every result (36)
SampledResult as publishedReads as
18 Aug 2026, 10:410.226 0.226 mg/l
29 Jul 2026, 12:430.369 0.369 mg/l
29 Jun 2026, 10:370.416 0.416 mg/l
27 May 2026, 12:300.978 0.978 mg/l
17 Apr 2026, 11:234.08 4.08 mg/l
6 Mar 2026, 11:025.69 5.69 mg/l
4 Feb 2026, 10:576.49 6.49 mg/l
16 Jan 2026, 10:345.29 5.29 mg/l
1 Dec 2025, 12:0013 13 mg/l
10 Nov 2025, 12:371.7 1.7 mg/l
22 Oct 2025, 10:101.1 1.1 mg/l
26 Sep 2025, 12:101.2 1.2 mg/l
11 Aug 2025, 10:020.656 0.656 mg/l
1 Jul 2025, 09:270.549 0.549 mg/l
9 Jun 2025, 10:221.59 1.59 mg/l
15 May 2025, 09:272.36 2.36 mg/l
9 Apr 2025, 12:254.39 4.39 mg/l
13 Mar 2025, 11:265.38 5.38 mg/l
10 Feb 2025, 11:163.59 3.59 mg/l
21 Jan 2025, 11:335.17 5.17 mg/l
17 Dec 2024, 11:484.67 4.67 mg/l
22 Nov 2024, 14:045.39 5.39 mg/l
15 Oct 2024, 11:364.69 4.69 mg/l
19 Sep 2024, 11:101.69 1.69 mg/l
27 Aug 2024, 11:441.69 1.69 mg/l
29 Jul 2024, 10:241.58 1.58 mg/l
18 Jun 2024, 11:392.38 2.38 mg/l
13 May 2024, 10:153.38 3.38 mg/l
25 Apr 2024, 10:354.49 4.49 mg/l
19 Mar 2024, 11:444.28 4.28 mg/l
23 Feb 2024, 10:292.68 2.68 mg/l
30 Jan 2024, 11:345.07 5.07 mg/l
27 Dec 2023, 10:104.46 4.46 mg/l
8 Dec 2023, 09:285.68 5.68 mg/l
21 Nov 2023, 11:165.17 5.17 mg/l
19 Oct 2023, 11:416.77 6.77 mg/l

Phosphate

orthophosphate, reactive, as P · code 0180 · mg/l

0.26 mg/l

Sampled 18 Aug 2026, 44 days ago · 36 results banked

00.10.20.30.4mg/l20242025202619 Oct 2023, 11:41: 0.23 mg/l21 Nov 2023, 11:16: 0.15 mg/l8 Dec 2023, 09:28: 0.12 mg/l27 Dec 2023, 10:10: 0.16 mg/l30 Jan 2024, 11:34: 0.12 mg/l23 Feb 2024, 10:29: 0.11 mg/l19 Mar 2024, 11:44: 0.12 mg/l25 Apr 2024, 10:35: 0.05 mg/l13 May 2024, 10:15: 0.08 mg/l18 Jun 2024, 11:39: 0.13 mg/l29 Jul 2024, 10:24: 0.19 mg/l27 Aug 2024, 11:44: 0.16 mg/l19 Sep 2024, 11:10: 0.15 mg/l15 Oct 2024, 11:36: 0.13 mg/l22 Nov 2024, 14:04: 0.13 mg/l17 Dec 2024, 11:48: 0.13 mg/l21 Jan 2025, 11:33: 0.12 mg/l10 Feb 2025, 11:16: 0.094 mg/l13 Mar 2025, 11:26: 0.081 mg/l9 Apr 2025, 12:25: 0.035 mg/l15 May 2025, 09:27: 0.12 mg/l9 Jun 2025, 10:22: 0.17 mg/l1 Jul 2025, 09:27: 0.27 mg/l11 Aug 2025, 10:02: 0.16 mg/l26 Sep 2025, 12:10: 0.16 mg/l22 Oct 2025, 10:10: 0.17 mg/l10 Nov 2025, 12:37: 0.15 mg/l1 Dec 2025, 12:00: 0.12 mg/l16 Jan 2026, 10:34: 0.28 mg/l4 Feb 2026, 10:57: 0.14 mg/l6 Mar 2026, 11:02: 0.083 mg/l17 Apr 2026, 11:23: 0.077 mg/l27 May 2026, 12:30: 0.19 mg/l29 Jun 2026, 10:37: 0.34 mg/l29 Jul 2026, 12:43: 0.24 mg/l18 Aug 2026, 10:41: 0.26 mg/l
Every result (36)
SampledResult as publishedReads as
18 Aug 2026, 10:410.26 0.26 mg/l
29 Jul 2026, 12:430.24 0.24 mg/l
29 Jun 2026, 10:370.34 0.34 mg/l
27 May 2026, 12:300.19 0.19 mg/l
17 Apr 2026, 11:230.077 0.077 mg/l
6 Mar 2026, 11:020.083 0.083 mg/l
4 Feb 2026, 10:570.14 0.14 mg/l
16 Jan 2026, 10:340.28 0.28 mg/l
1 Dec 2025, 12:000.12 0.12 mg/l
10 Nov 2025, 12:370.15 0.15 mg/l
22 Oct 2025, 10:100.17 0.17 mg/l
26 Sep 2025, 12:100.16 0.16 mg/l
11 Aug 2025, 10:020.16 0.16 mg/l
1 Jul 2025, 09:270.27 0.27 mg/l
9 Jun 2025, 10:220.17 0.17 mg/l
15 May 2025, 09:270.12 0.12 mg/l
9 Apr 2025, 12:250.035 0.035 mg/l
13 Mar 2025, 11:260.081 0.081 mg/l
10 Feb 2025, 11:160.094 0.094 mg/l
21 Jan 2025, 11:330.12 0.12 mg/l
17 Dec 2024, 11:480.13 0.13 mg/l
22 Nov 2024, 14:040.13 0.13 mg/l
15 Oct 2024, 11:360.13 0.13 mg/l
19 Sep 2024, 11:100.15 0.15 mg/l
27 Aug 2024, 11:440.16 0.16 mg/l
29 Jul 2024, 10:240.19 0.19 mg/l
18 Jun 2024, 11:390.13 0.13 mg/l
13 May 2024, 10:150.08 0.08 mg/l
25 Apr 2024, 10:350.05 0.05 mg/l
19 Mar 2024, 11:440.12 0.12 mg/l
23 Feb 2024, 10:290.11 0.11 mg/l
30 Jan 2024, 11:340.12 0.12 mg/l
27 Dec 2023, 10:100.16 0.16 mg/l
8 Dec 2023, 09:280.12 0.12 mg/l
21 Nov 2023, 11:160.15 0.15 mg/l
19 Oct 2023, 11:410.23 0.23 mg/l

Turbidity

code 6396 · NTU

3 NTU

Sampled 6 Mar 2026, 7 months ago · 26 results banked

0100200300400NTU20242025202619 Oct 2023, 11:41: 8.4 NTU21 Nov 2023, 11:16: 7 NTU8 Dec 2023, 09:28: 62 NTU27 Dec 2023, 10:10: 14 NTU30 Jan 2024, 11:34: 15 NTU23 Feb 2024, 10:29: 120 NTU19 Mar 2024, 11:44: 14 NTU18 Jun 2024, 11:39: 6.9 NTU29 Jul 2024, 10:24: 5.7 NTU27 Aug 2024, 11:44: 6.7 NTU19 Sep 2024, 11:10: 3.6 NTU15 Oct 2024, 11:36: 22 NTU22 Nov 2024, 14:04: 44 NTU17 Dec 2024, 11:48: 19 NTU21 Jan 2025, 11:33: 5.7 NTU10 Feb 2025, 11:16: 320 NTU13 Mar 2025, 11:26: 11 NTU9 Apr 2025, 12:25: 14 NTU11 Aug 2025, 10:02: 5.9 NTU26 Sep 2025, 12:10: 3.7 NTU22 Oct 2025, 10:10: 3.5 NTU10 Nov 2025, 12:37: 5 NTU1 Dec 2025, 12:00: 26 NTU16 Jan 2026, 10:34: 180 NTU4 Feb 2026, 10:57: 68 NTU6 Mar 2026, 11:02: 3 NTU
Every result (26)
SampledResult as publishedReads as
6 Mar 2026, 11:023 3 NTU
4 Feb 2026, 10:5768 68 NTU
16 Jan 2026, 10:34180 180 NTU
1 Dec 2025, 12:0026 26 NTU
10 Nov 2025, 12:375 5 NTU
22 Oct 2025, 10:103.5 3.5 NTU
26 Sep 2025, 12:103.7 3.7 NTU
11 Aug 2025, 10:025.9 5.9 NTU
9 Apr 2025, 12:2514 14 NTU
13 Mar 2025, 11:2611 11 NTU
10 Feb 2025, 11:16320 320 NTU
21 Jan 2025, 11:335.7 5.7 NTU
17 Dec 2024, 11:4819 19 NTU
22 Nov 2024, 14:0444 44 NTU
15 Oct 2024, 11:3622 22 NTU
19 Sep 2024, 11:103.6 3.6 NTU
27 Aug 2024, 11:446.7 6.7 NTU
29 Jul 2024, 10:245.7 5.7 NTU
18 Jun 2024, 11:396.9 6.9 NTU
19 Mar 2024, 11:4414 14 NTU
23 Feb 2024, 10:29120 120 NTU
30 Jan 2024, 11:3415 15 NTU
27 Dec 2023, 10:1014 14 NTU
8 Dec 2023, 09:2862 62 NTU
21 Nov 2023, 11:167 7 NTU
19 Oct 2023, 11:418.4 8.4 NTU

Conductivity

at 25 °C · code 0077 · µS/cm

760 µS/cm

Sampled 18 Aug 2026, 44 days ago · 36 results banked

200400600800µS/cm20242025202619 Oct 2023, 11:41: 620 µS/cm21 Nov 2023, 11:16: 714 µS/cm8 Dec 2023, 09:28: 609 µS/cm27 Dec 2023, 10:10: 770 µS/cm30 Jan 2024, 11:34: 751 µS/cm23 Feb 2024, 10:29: 473 µS/cm19 Mar 2024, 11:44: 722 µS/cm25 Apr 2024, 10:35: 669 µS/cm13 May 2024, 10:15: 711 µS/cm18 Jun 2024, 11:39: 573 µS/cm29 Jul 2024, 10:24: 583 µS/cm27 Aug 2024, 11:44: 634 µS/cm19 Sep 2024, 11:10: 586 µS/cm15 Oct 2024, 11:36: 578 µS/cm22 Nov 2024, 14:04: 734 µS/cm17 Dec 2024, 11:48: 754 µS/cm21 Jan 2025, 11:33: 797 µS/cm10 Feb 2025, 11:16: 453 µS/cm13 Mar 2025, 11:26: 775 µS/cm9 Apr 2025, 12:25: 694 µS/cm15 May 2025, 09:27: 656 µS/cm9 Jun 2025, 10:22: 608 µS/cm1 Jul 2025, 09:27: 583 µS/cm11 Aug 2025, 10:02: 569 µS/cm26 Sep 2025, 12:10: 708 µS/cm22 Oct 2025, 10:10: 598 µS/cm10 Nov 2025, 12:37: 661 µS/cm1 Dec 2025, 12:00: 739 µS/cm16 Jan 2026, 10:34: 362 µS/cm4 Feb 2026, 10:57: 558 µS/cm6 Mar 2026, 11:02: 740 µS/cm17 Apr 2026, 11:23: 733 µS/cm27 May 2026, 12:30: 692 µS/cm29 Jun 2026, 10:37: 731 µS/cm29 Jul 2026, 12:43: 737 µS/cm18 Aug 2026, 10:41: 760 µS/cm
Every result (36)
SampledResult as publishedReads as
18 Aug 2026, 10:41760 760 µS/cm
29 Jul 2026, 12:43737 737 µS/cm
29 Jun 2026, 10:37731 731 µS/cm
27 May 2026, 12:30692 692 µS/cm
17 Apr 2026, 11:23733 733 µS/cm
6 Mar 2026, 11:02740 740 µS/cm
4 Feb 2026, 10:57558 558 µS/cm
16 Jan 2026, 10:34362 362 µS/cm
1 Dec 2025, 12:00739 739 µS/cm
10 Nov 2025, 12:37661 661 µS/cm
22 Oct 2025, 10:10598 598 µS/cm
26 Sep 2025, 12:10708 708 µS/cm
11 Aug 2025, 10:02569 569 µS/cm
1 Jul 2025, 09:27583 583 µS/cm
9 Jun 2025, 10:22608 608 µS/cm
15 May 2025, 09:27656 656 µS/cm
9 Apr 2025, 12:25694 694 µS/cm
13 Mar 2025, 11:26775 775 µS/cm
10 Feb 2025, 11:16453 453 µS/cm
21 Jan 2025, 11:33797 797 µS/cm
17 Dec 2024, 11:48754 754 µS/cm
22 Nov 2024, 14:04734 734 µS/cm
15 Oct 2024, 11:36578 578 µS/cm
19 Sep 2024, 11:10586 586 µS/cm
27 Aug 2024, 11:44634 634 µS/cm
29 Jul 2024, 10:24583 583 µS/cm
18 Jun 2024, 11:39573 573 µS/cm
13 May 2024, 10:15711 711 µS/cm
25 Apr 2024, 10:35669 669 µS/cm
19 Mar 2024, 11:44722 722 µS/cm
23 Feb 2024, 10:29473 473 µS/cm
30 Jan 2024, 11:34751 751 µS/cm
27 Dec 2023, 10:10770 770 µS/cm
8 Dec 2023, 09:28609 609 µS/cm
21 Nov 2023, 11:16714 714 µS/cm
19 Oct 2023, 11:41620 620 µS/cm

Everything measured here

63 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 63 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 36 Oct 2023 – Aug 2026 50% 18 Aug 2026
Oxygen, Dissolved as O2 9924 River water 36 Oct 2023 – Aug 2026 4.72 mg/l 18 Aug 2026
Temperature of Water 0076 River water 36 Oct 2023 – Aug 2026 18 °C 18 Aug 2026
pH 0061 River water 36 Oct 2023 – Aug 2026 7.5 18 Aug 2026
Ammoniacal Nitrogen as N 0111 River water 36 Oct 2023 – Aug 2026 0.03 mg/l 18 Aug 2026
Nitrate as N 0117 River water 36 Oct 2023 – Aug 2026 0.226 mg/l 18 Aug 2026
Orthophosphate, reactive as P 0180 River water 36 Oct 2023 – Aug 2026 0.26 mg/l 18 Aug 2026
Turbidity 6396 River water 26 Oct 2023 – Mar 2026 3 NTU 6 Mar 2026
Conductivity at 25 C 0077 River water 36 Oct 2023 – Aug 2026 760 µS/cm 18 Aug 2026
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 River water 2 Jun 2024 – Aug 2024 below 0.001 µg/l 27 Aug 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 River water 2 Jun 2024 – Aug 2024 below 0.001 µg/l 27 Aug 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 River water 2 Jun 2024 – Aug 2024 below 0.001 µg/l 27 Aug 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 River water 2 Jun 2024 – Aug 2024 below 0.002 µg/l 27 Aug 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
2H,2H,3H,3H-Perfluorooctanoic acid 2989 River water 2 Jun 2024 – Aug 2024 below 0.001 µg/l 27 Aug 2024
3-Perfluoroheptylpropanoic acid 2925 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
3:3 Fluorotelomer carboxylic acid 2926 River water 2 Jun 2024 – Aug 2024 below 0.004 µg/l 27 Aug 2024
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 River water 2 Jun 2024 – Aug 2024 below 0.005 µg/l 27 Aug 2024
4:2 Fluorotelomer sulfonic acid 2987 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
6:2 Fluorotelomer sulfonic acid 2984 River water 2 Jun 2024 – Aug 2024 below 0.001 µg/l 27 Aug 2024
8:2 Fluorotelomer sulfonic acid 2983 River water 2 Jun 2024 – Aug 2024 below 0.001 µg/l 27 Aug 2024
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Alkalinity to pH 4.5 as CaCO3 0162 River water 36 Oct 2023 – Aug 2026 310 mg/l 18 Aug 2026
Ammonia un-ionised as N 0119 River water 36 Oct 2023 – Aug 2026 0.00032 mg/l 18 Aug 2026
BOD : 5 Day ATU 0085 River water 29 Oct 2023 – Mar 2026 below 3 mg/l 6 Mar 2026
Chlorophyll : Acetone Extract 7887 River water 23 Oct 2023 – Mar 2026 14 µg/l 6 Mar 2026
Hexafluoropropylene oxide dimer acid (Gen X) 2981 River water 2 Jun 2024 – Aug 2024 below 0.001 µg/l 27 Aug 2024
N-Ethylperfluorooctanesulfonamide 2977 River water 2 Jun 2024 – Aug 2024 below 0.002 µg/l 27 Aug 2024
N-methylperfluorooctanesulfonamide 2975 River water 2 Jun 2024 – Aug 2024 below 0.002 µg/l 27 Aug 2024
Nitrite as N 0118 River water 36 Oct 2023 – Aug 2026 below 0.004 mg/l 18 Aug 2026
Nitrogen, Total Oxidised as N 0116 River water 36 Oct 2023 – Aug 2026 0.23 mg/l 18 Aug 2026
Perfluoro(2-ethoxyethane)sulfonic acid 2924 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Perfluoro(4-methoxybutanoic) acid 2923 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Perfluoro-3,6-dioxaheptanoic acid 2922 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Perfluoro-3-methoxypropanoic acid 2921 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Perfluoro-4-ethylcyclohexanesulfonic acid 2973 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Perfluorobutanesulfonic acid 2972 River water 2 Jun 2024 – Aug 2024 0.0023 µg/l 27 Aug 2024
Perfluorobutanoic acid 2995 River water 2 Jun 2024 – Aug 2024 0.0034 µg/l 27 Aug 2024
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 River water 2 Jun 2024 – Aug 2024 0.00071 µg/l 27 Aug 2024
Perfluorodecanesulfonic acid 2969 River water 2 Jun 2024 – Aug 2024 below 0.002 µg/l 27 Aug 2024
Perfluorodecanoic acid 8892 River water 2 Jun 2024 – Aug 2024 below 0.002 µg/l 27 Aug 2024
Perfluorododecane sulfonic acid 2968 River water 2 Jun 2024 – Aug 2024 below 0.005 µg/l 27 Aug 2024
Perfluorododecanoic acid 8894 River water 2 Jun 2024 – Aug 2024 below 0.002 µg/l 27 Aug 2024
Perfluoroheptanesulfonic acid 2967 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Perfluoroheptanoic acid 8889 River water 2 Jun 2024 – Aug 2024 0.0016 µg/l 27 Aug 2024
Perfluorohexanesulfonamide 2965 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Perfluorohexanesulfonic acid (B) 2944 River water 2 Jun 2024 – Aug 2024 0.00052 µg/l 27 Aug 2024
Perfluorohexanesulfonic acid (L) 2964 River water 2 Jun 2024 – Aug 2024 0.0022 µg/l 27 Aug 2024
Perfluorohexanoic acid 8888 River water 2 Jun 2024 – Aug 2024 below 0.003 µg/l 27 Aug 2024
Perfluorononanesulfonic acid 2963 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Perfluorononanoic acid 8891 River water 2 Jun 2024 – Aug 2024 below 0.001 µg/l 27 Aug 2024
Perfluorooctadecanoic acid 2962 River water 2 Jun 2024 – Aug 2024 below 0.002 µg/l 27 Aug 2024
Perfluorooctanesulfonamide 2961 River water 2 Jun 2024 – Aug 2024 below 0.001 µg/l 27 Aug 2024
Perfluorooctanesulfonic acid (branched) 2960 River water 2 Jun 2024 – Aug 2024 0.0014 µg/l 27 Aug 2024
Perfluorooctanesulfonic acid (linear) 2959 River water 2 Jun 2024 – Aug 2024 0.00056 µg/l 27 Aug 2024
Perfluorooctanoic acid 8890 River water 2 Jun 2024 – Aug 2024 0.0019 µg/l 27 Aug 2024
Perfluoropentanesulfonic acid 2957 River water 2 Jun 2024 – Aug 2024 below 0.0005 µg/l 27 Aug 2024
Perfluoropentanoic acid 8887 River water 2 Jun 2024 – Aug 2024 0.0034 µg/l 27 Aug 2024
Perfluorotetradecanoic acid 8895 River water 2 Jun 2024 – Aug 2024 below 0.006 µg/l 27 Aug 2024
Perfluorotridecanoic acid 2955 River water 2 Jun 2024 – Aug 2024 below 0.005 µg/l 27 Aug 2024
Perfluoroundecane sulfonic acid 2953 River water 2 Jun 2024 – Aug 2024 below 0.004 µg/l 27 Aug 2024
Perfluoroundecanoic acid 8893 River water 2 Jun 2024 – Aug 2024 below 0.002 µg/l 27 Aug 2024
Solids, Suspended at 105 C 0135 River water 26 Oct 2023 – Mar 2026 7.8 mg/l 6 Mar 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.