Lenta Brook at Hinton Marsh Farm

EA name: LENTA BROOK AT HINTON MARSH FARM
Environment Agency sampling point TH-PUTR0249 · 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 Aug 2026, 09:3734 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
22 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 Environmental monitoring statutory (EU directives)
Where
National Grid 422500, 185680As published, to the nearest 10 m. Open in a map
River, by its own name
Lenta Brook
River, by the map
Lenta BrookPlaced on the river its name gives, 1 m from the line.
Next gauge downstream
Inglesham On the River Cole · 18 km along the river
Why it was sampled
Environmental monitoring statutory (EU directives) (22 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

89.4%

Sampled 28 Aug 2026, 34 days ago · 22 results banked

8090100110%20242025202625 Jun 2024, 09:59: 99.9%17 Jul 2024, 11:18: 100.2%8 Aug 2024, 08:47: 97.7%20 Sep 2024, 09:23: 93.3%9 Oct 2024, 12:19: 80.4%21 Nov 2024, 11:28: 96.2%16 Dec 2024, 15:10: 97.9%10 Jan 2025, 10:42: 99.8%13 Feb 2025, 11:08: 100.2%13 Mar 2025, 09:41: 101%28 Apr 2025, 12:20: 100.6%15 Oct 2025, 10:55: 94.4%18 Nov 2025, 10:34: 92.3%2 Dec 2025, 12:12: 89.5%26 Jan 2026, 12:48: 92.1%10 Feb 2026, 10:35: 93.7%4 Mar 2026, 10:45: 98.9%30 Apr 2026, 10:32: 99.5%15 May 2026, 13:05: 101.2%18 Jun 2026, 14:53: 98.5%28 Jul 2026, 10:44: 93.1%28 Aug 2026, 09:37: 89.4%
Every result (22)
SampledResult as publishedReads as
28 Aug 2026, 09:3789.4 89.4%
28 Jul 2026, 10:4493.1 93.1%
18 Jun 2026, 14:5398.5 98.5%
15 May 2026, 13:05101.2 101.2%
30 Apr 2026, 10:3299.5 99.5%
4 Mar 2026, 10:4598.9 98.9%
10 Feb 2026, 10:3593.7 93.7%
26 Jan 2026, 12:4892.1 92.1%
2 Dec 2025, 12:1289.5 89.5%
18 Nov 2025, 10:3492.3 92.3%
15 Oct 2025, 10:5594.4 94.4%
28 Apr 2025, 12:20100.6 100.6%
13 Mar 2025, 09:41101 101%
13 Feb 2025, 11:08100.2 100.2%
10 Jan 2025, 10:4299.8 99.8%
16 Dec 2024, 15:1097.9 97.9%
21 Nov 2024, 11:2896.2 96.2%
9 Oct 2024, 12:1980.4 80.4%
20 Sep 2024, 09:2393.3 93.3%
8 Aug 2024, 08:4797.7 97.7%
17 Jul 2024, 11:18100.2 100.2%
25 Jun 2024, 09:5999.9 99.9%

Dissolved oxygen

as O2 · code 9924 · mg/l

8.84 mg/l

Sampled 28 Aug 2026, 34 days ago · 22 results banked

8910111213mg/l20242025202625 Jun 2024, 09:59: 10.6 mg/l17 Jul 2024, 11:18: 10.5 mg/l8 Aug 2024, 08:47: 10.2 mg/l20 Sep 2024, 09:23: 9.61 mg/l9 Oct 2024, 12:19: 8.57 mg/l21 Nov 2024, 11:28: 11.7 mg/l16 Dec 2024, 15:10: 11 mg/l10 Jan 2025, 10:42: 12.3 mg/l13 Feb 2025, 11:08: 12 mg/l13 Mar 2025, 09:41: 12 mg/l28 Apr 2025, 12:20: 10.7 mg/l15 Oct 2025, 10:55: 10.5 mg/l18 Nov 2025, 10:34: 11.8 mg/l2 Dec 2025, 12:12: 10.5 mg/l26 Jan 2026, 12:48: 10.6 mg/l10 Feb 2026, 10:35: 10.6 mg/l4 Mar 2026, 10:45: 11.3 mg/l30 Apr 2026, 10:32: 11.2 mg/l15 May 2026, 13:05: 11.5 mg/l18 Jun 2026, 14:53: 9.7 mg/l28 Jul 2026, 10:44: 8.9 mg/l28 Aug 2026, 09:37: 8.84 mg/l
Every result (22)
SampledResult as publishedReads as
28 Aug 2026, 09:378.84 8.84 mg/l
28 Jul 2026, 10:448.9 8.9 mg/l
18 Jun 2026, 14:539.7 9.7 mg/l
15 May 2026, 13:0511.5 11.5 mg/l
30 Apr 2026, 10:3211.2 11.2 mg/l
4 Mar 2026, 10:4511.3 11.3 mg/l
10 Feb 2026, 10:3510.6 10.6 mg/l
26 Jan 2026, 12:4810.6 10.6 mg/l
2 Dec 2025, 12:1210.5 10.5 mg/l
18 Nov 2025, 10:3411.8 11.8 mg/l
15 Oct 2025, 10:5510.5 10.5 mg/l
28 Apr 2025, 12:2010.7 10.7 mg/l
13 Mar 2025, 09:4112 12 mg/l
13 Feb 2025, 11:0812 12 mg/l
10 Jan 2025, 10:4212.3 12.3 mg/l
16 Dec 2024, 15:1011 11 mg/l
21 Nov 2024, 11:2811.7 11.7 mg/l
9 Oct 2024, 12:198.57 8.57 mg/l
20 Sep 2024, 09:239.61 9.61 mg/l
8 Aug 2024, 08:4710.2 10.2 mg/l
17 Jul 2024, 11:1810.5 10.5 mg/l
25 Jun 2024, 09:5910.6 10.6 mg/l

Water temperature

code 0076 · °C

15.8 °C

Sampled 28 Aug 2026, 34 days ago · 22 results banked

5101520°C20242025202625 Jun 2024, 09:59: 12.6 °C17 Jul 2024, 11:18: 13 °C8 Aug 2024, 08:47: 13.1 °C20 Sep 2024, 09:23: 13.9 °C9 Oct 2024, 12:19: 12.4 °C21 Nov 2024, 11:28: 6.8 °C16 Dec 2024, 15:10: 10 °C10 Jan 2025, 10:42: 6.2 °C13 Feb 2025, 11:08: 7.6 °C13 Mar 2025, 09:41: 7.9 °C28 Apr 2025, 12:20: 12.3 °C15 Oct 2025, 10:55: 10.5 °C18 Nov 2025, 10:34: 5 °C2 Dec 2025, 12:12: 8.3 °C26 Jan 2026, 12:48: 9 °C10 Feb 2026, 10:35: 9.7 °C4 Mar 2026, 10:45: 9.4 °C30 Apr 2026, 10:32: 10 °C15 May 2026, 13:05: 9.6 °C18 Jun 2026, 14:53: 16 °C28 Jul 2026, 10:44: 17.4 °C28 Aug 2026, 09:37: 15.8 °C
Every result (22)
SampledResult as publishedReads as
28 Aug 2026, 09:3715.8 15.8 °C
28 Jul 2026, 10:4417.4 17.4 °C
18 Jun 2026, 14:5316 16 °C
15 May 2026, 13:059.6 9.6 °C
30 Apr 2026, 10:3210 10 °C
4 Mar 2026, 10:459.4 9.4 °C
10 Feb 2026, 10:359.7 9.7 °C
26 Jan 2026, 12:489 9 °C
2 Dec 2025, 12:128.3 8.3 °C
18 Nov 2025, 10:345 5 °C
15 Oct 2025, 10:5510.5 10.5 °C
28 Apr 2025, 12:2012.3 12.3 °C
13 Mar 2025, 09:417.9 7.9 °C
13 Feb 2025, 11:087.6 7.6 °C
10 Jan 2025, 10:426.2 6.2 °C
16 Dec 2024, 15:1010 10 °C
21 Nov 2024, 11:286.8 6.8 °C
9 Oct 2024, 12:1912.4 12.4 °C
20 Sep 2024, 09:2313.9 13.9 °C
8 Aug 2024, 08:4713.1 13.1 °C
17 Jul 2024, 11:1813 13 °C
25 Jun 2024, 09:5912.6 12.6 °C

pH

code 0061

8.13

Sampled 28 Aug 2026, 34 days ago · 22 results banked

7.57.7588.258.58.7520242025202625 Jun 2024, 09:59: 8.2117 Jul 2024, 11:18: 8.248 Aug 2024, 08:47: 8.1920 Sep 2024, 09:23: 8.29 Oct 2024, 12:19: 7.6721 Nov 2024, 11:28: 8.0116 Dec 2024, 15:10: 8.1910 Jan 2025, 10:42: 8.2713 Feb 2025, 11:08: 8.1413 Mar 2025, 09:41: 8.3128 Apr 2025, 12:20: 8.2415 Oct 2025, 10:55: 8.2618 Nov 2025, 10:34: 8.252 Dec 2025, 12:12: 8.0226 Jan 2026, 12:48: 8.0110 Feb 2026, 10:35: 8.034 Mar 2026, 10:45: 8.2530 Apr 2026, 10:32: 8.5215 May 2026, 13:05: 8.3118 Jun 2026, 14:53: 8.2428 Jul 2026, 10:44: 8.228 Aug 2026, 09:37: 8.13
Every result (22)
SampledResult as publishedReads as
28 Aug 2026, 09:378.13 8.13
28 Jul 2026, 10:448.2 8.2
18 Jun 2026, 14:538.24 8.24
15 May 2026, 13:058.31 8.31
30 Apr 2026, 10:328.52 8.52
4 Mar 2026, 10:458.25 8.25
10 Feb 2026, 10:358.03 8.03
26 Jan 2026, 12:488.01 8.01
2 Dec 2025, 12:128.02 8.02
18 Nov 2025, 10:348.25 8.25
15 Oct 2025, 10:558.26 8.26
28 Apr 2025, 12:208.24 8.24
13 Mar 2025, 09:418.31 8.31
13 Feb 2025, 11:088.14 8.14
10 Jan 2025, 10:428.27 8.27
16 Dec 2024, 15:108.19 8.19
21 Nov 2024, 11:288.01 8.01
9 Oct 2024, 12:197.67 7.67
20 Sep 2024, 09:238.2 8.2
8 Aug 2024, 08:478.19 8.19
17 Jul 2024, 11:188.24 8.24
25 Jun 2024, 09:598.21 8.21

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 28 Aug 2026, 34 days ago · 22 results banked

0.030.03050.031mg/l20242025202625 Jun 2024, 09:59: below 0.03 mg/l (not detected above this)17 Jul 2024, 11:18: below 0.03 mg/l (not detected above this)8 Aug 2024, 08:47: below 0.03 mg/l (not detected above this)20 Sep 2024, 09:23: below 0.03 mg/l (not detected above this)9 Oct 2024, 12:19: below 0.03 mg/l (not detected above this)21 Nov 2024, 11:28: below 0.03 mg/l (not detected above this)16 Dec 2024, 15:10: below 0.03 mg/l (not detected above this)10 Jan 2025, 10:42: below 0.03 mg/l (not detected above this)13 Feb 2025, 11:08: below 0.03 mg/l (not detected above this)13 Mar 2025, 09:41: 0.031 mg/l28 Apr 2025, 12:20: below 0.03 mg/l (not detected above this)15 Oct 2025, 10:55: below 0.03 mg/l (not detected above this)18 Nov 2025, 10:34: below 0.03 mg/l (not detected above this)2 Dec 2025, 12:12: below 0.03 mg/l (not detected above this)26 Jan 2026, 12:48: below 0.03 mg/l (not detected above this)10 Feb 2026, 10:35: below 0.03 mg/l (not detected above this)4 Mar 2026, 10:45: below 0.03 mg/l (not detected above this)30 Apr 2026, 10:32: below 0.03 mg/l (not detected above this)15 May 2026, 13:05: below 0.03 mg/l (not detected above this)18 Jun 2026, 14:53: below 0.03 mg/l (not detected above this)28 Jul 2026, 10:44: below 0.03 mg/l (not detected above this)28 Aug 2026, 09:37: below 0.03 mg/l (not detected above this)
Every result (22)
SampledResult as publishedReads as
28 Aug 2026, 09:37<0.03 below 0.03 mg/l (not detected above this)
28 Jul 2026, 10:44<0.03 below 0.03 mg/l (not detected above this)
18 Jun 2026, 14:53<0.03 below 0.03 mg/l (not detected above this)
15 May 2026, 13:05<0.03 below 0.03 mg/l (not detected above this)
30 Apr 2026, 10:32<0.03 below 0.03 mg/l (not detected above this)
4 Mar 2026, 10:45<0.03 below 0.03 mg/l (not detected above this)
10 Feb 2026, 10:35<0.03 below 0.03 mg/l (not detected above this)
26 Jan 2026, 12:48<0.03 below 0.03 mg/l (not detected above this)
2 Dec 2025, 12:12<0.03 below 0.03 mg/l (not detected above this)
18 Nov 2025, 10:34<0.03 below 0.03 mg/l (not detected above this)
15 Oct 2025, 10:55<0.03 below 0.03 mg/l (not detected above this)
28 Apr 2025, 12:20<0.03 below 0.03 mg/l (not detected above this)
13 Mar 2025, 09:410.031 0.031 mg/l
13 Feb 2025, 11:08<0.03 below 0.03 mg/l (not detected above this)
10 Jan 2025, 10:42<0.03 below 0.03 mg/l (not detected above this)
16 Dec 2024, 15:10<0.03 below 0.03 mg/l (not detected above this)
21 Nov 2024, 11:28<0.03 below 0.03 mg/l (not detected above this)
9 Oct 2024, 12:19<0.03 below 0.03 mg/l (not detected above this)
20 Sep 2024, 09:23<0.03 below 0.03 mg/l (not detected above this)
8 Aug 2024, 08:47<0.03 below 0.03 mg/l (not detected above this)
17 Jul 2024, 11:18<0.03 below 0.03 mg/l (not detected above this)
25 Jun 2024, 09:59<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

3.69 mg/l

Sampled 28 Aug 2026, 34 days ago · 22 results banked

051015mg/l20242025202625 Jun 2024, 09:59: 6.69 mg/l17 Jul 2024, 11:18: 6.49 mg/l8 Aug 2024, 08:47: 6.49 mg/l20 Sep 2024, 09:23: 5.39 mg/l9 Oct 2024, 12:19: 3.89 mg/l21 Nov 2024, 11:28: 5.59 mg/l16 Dec 2024, 15:10: 7.4 mg/l10 Jan 2025, 10:42: 7 mg/l13 Feb 2025, 11:08: 7.2 mg/l13 Mar 2025, 09:41: 7.5 mg/l28 Apr 2025, 12:20: 7.29 mg/l15 Oct 2025, 10:55: 2.99 mg/l18 Nov 2025, 10:34: 6.99 mg/l2 Dec 2025, 12:12: 13 mg/l26 Jan 2026, 12:48: 6.8 mg/l10 Feb 2026, 10:35: 7.3 mg/l4 Mar 2026, 10:45: 7.8 mg/l30 Apr 2026, 10:32: 7.09 mg/l15 May 2026, 13:05: 6.69 mg/l18 Jun 2026, 14:53: 6.09 mg/l28 Jul 2026, 10:44: 5.19 mg/l28 Aug 2026, 09:37: 3.69 mg/l
Every result (22)
SampledResult as publishedReads as
28 Aug 2026, 09:373.69 3.69 mg/l
28 Jul 2026, 10:445.19 5.19 mg/l
18 Jun 2026, 14:536.09 6.09 mg/l
15 May 2026, 13:056.69 6.69 mg/l
30 Apr 2026, 10:327.09 7.09 mg/l
4 Mar 2026, 10:457.8 7.8 mg/l
10 Feb 2026, 10:357.3 7.3 mg/l
26 Jan 2026, 12:486.8 6.8 mg/l
2 Dec 2025, 12:1213 13 mg/l
18 Nov 2025, 10:346.99 6.99 mg/l
15 Oct 2025, 10:552.99 2.99 mg/l
28 Apr 2025, 12:207.29 7.29 mg/l
13 Mar 2025, 09:417.5 7.5 mg/l
13 Feb 2025, 11:087.2 7.2 mg/l
10 Jan 2025, 10:427 7 mg/l
16 Dec 2024, 15:107.4 7.4 mg/l
21 Nov 2024, 11:285.59 5.59 mg/l
9 Oct 2024, 12:193.89 3.89 mg/l
20 Sep 2024, 09:235.39 5.39 mg/l
8 Aug 2024, 08:476.49 6.49 mg/l
17 Jul 2024, 11:186.49 6.49 mg/l
25 Jun 2024, 09:596.69 6.69 mg/l

Phosphate

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

0.097 mg/l

Sampled 28 Aug 2026, 34 days ago · 22 results banked

00.050.10.15mg/l20242025202625 Jun 2024, 09:59: 0.041 mg/l17 Jul 2024, 11:18: 0.046 mg/l8 Aug 2024, 08:47: 0.039 mg/l20 Sep 2024, 09:23: 0.048 mg/l9 Oct 2024, 12:19: 0.15 mg/l21 Nov 2024, 11:28: 0.057 mg/l16 Dec 2024, 15:10: 0.046 mg/l10 Jan 2025, 10:42: 0.05 mg/l13 Feb 2025, 11:08: 0.05 mg/l13 Mar 2025, 09:41: 0.046 mg/l28 Apr 2025, 12:20: 0.034 mg/l15 Oct 2025, 10:55: 0.049 mg/l18 Nov 2025, 10:34: 0.097 mg/l2 Dec 2025, 12:12: 0.13 mg/l26 Jan 2026, 12:48: 0.068 mg/l10 Feb 2026, 10:35: 0.063 mg/l4 Mar 2026, 10:45: 0.066 mg/l30 Apr 2026, 10:32: 0.034 mg/l15 May 2026, 13:05: 0.032 mg/l18 Jun 2026, 14:53: 0.039 mg/l28 Jul 2026, 10:44: 0.042 mg/l28 Aug 2026, 09:37: 0.097 mg/l
Every result (22)
SampledResult as publishedReads as
28 Aug 2026, 09:370.097 0.097 mg/l
28 Jul 2026, 10:440.042 0.042 mg/l
18 Jun 2026, 14:530.039 0.039 mg/l
15 May 2026, 13:050.032 0.032 mg/l
30 Apr 2026, 10:320.034 0.034 mg/l
4 Mar 2026, 10:450.066 0.066 mg/l
10 Feb 2026, 10:350.063 0.063 mg/l
26 Jan 2026, 12:480.068 0.068 mg/l
2 Dec 2025, 12:120.13 0.13 mg/l
18 Nov 2025, 10:340.097 0.097 mg/l
15 Oct 2025, 10:550.049 0.049 mg/l
28 Apr 2025, 12:200.034 0.034 mg/l
13 Mar 2025, 09:410.046 0.046 mg/l
13 Feb 2025, 11:080.05 0.05 mg/l
10 Jan 2025, 10:420.05 0.05 mg/l
16 Dec 2024, 15:100.046 0.046 mg/l
21 Nov 2024, 11:280.057 0.057 mg/l
9 Oct 2024, 12:190.15 0.15 mg/l
20 Sep 2024, 09:230.048 0.048 mg/l
8 Aug 2024, 08:470.039 0.039 mg/l
17 Jul 2024, 11:180.046 0.046 mg/l
25 Jun 2024, 09:590.041 0.041 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

588 µS/cm

Sampled 28 Aug 2026, 34 days ago · 22 results banked

550600650700µS/cm20242025202625 Jun 2024, 09:59: 615 µS/cm17 Jul 2024, 11:18: 614 µS/cm8 Aug 2024, 08:47: 600 µS/cm20 Sep 2024, 09:23: 593 µS/cm9 Oct 2024, 12:19: 563 µS/cm21 Nov 2024, 11:28: 649 µS/cm16 Dec 2024, 15:10: 633 µS/cm10 Jan 2025, 10:42: 639 µS/cm13 Feb 2025, 11:08: 641 µS/cm13 Mar 2025, 09:41: 629 µS/cm28 Apr 2025, 12:20: 620 µS/cm15 Oct 2025, 10:55: 628 µS/cm18 Nov 2025, 10:34: 689 µS/cm2 Dec 2025, 12:12: 648 µS/cm26 Jan 2026, 12:48: 622 µS/cm10 Feb 2026, 10:35: 629 µS/cm4 Mar 2026, 10:45: 638 µS/cm30 Apr 2026, 10:32: 618 µS/cm15 May 2026, 13:05: 615 µS/cm18 Jun 2026, 14:53: 610 µS/cm28 Jul 2026, 10:44: 589 µS/cm28 Aug 2026, 09:37: 588 µS/cm
Every result (22)
SampledResult as publishedReads as
28 Aug 2026, 09:37588 588 µS/cm
28 Jul 2026, 10:44589 589 µS/cm
18 Jun 2026, 14:53610 610 µS/cm
15 May 2026, 13:05615 615 µS/cm
30 Apr 2026, 10:32618 618 µS/cm
4 Mar 2026, 10:45638 638 µS/cm
10 Feb 2026, 10:35629 629 µS/cm
26 Jan 2026, 12:48622 622 µS/cm
2 Dec 2025, 12:12648 648 µS/cm
18 Nov 2025, 10:34689 689 µS/cm
15 Oct 2025, 10:55628 628 µS/cm
28 Apr 2025, 12:20620 620 µS/cm
13 Mar 2025, 09:41629 629 µS/cm
13 Feb 2025, 11:08641 641 µS/cm
10 Jan 2025, 10:42639 639 µS/cm
16 Dec 2024, 15:10633 633 µS/cm
21 Nov 2024, 11:28649 649 µS/cm
9 Oct 2024, 12:19563 563 µS/cm
20 Sep 2024, 09:23593 593 µS/cm
8 Aug 2024, 08:47600 600 µS/cm
17 Jul 2024, 11:18614 614 µS/cm
25 Jun 2024, 09:59615 615 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
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 22 Jun 2024 – Aug 2026 89.4% 28 Aug 2026
Oxygen, Dissolved as O2 9924 River water 22 Jun 2024 – Aug 2026 8.84 mg/l 28 Aug 2026
Temperature of Water 0076 River water 22 Jun 2024 – Aug 2026 15.8 °C 28 Aug 2026
pH 0061 River water 22 Jun 2024 – Aug 2026 8.13 28 Aug 2026
Ammoniacal Nitrogen as N 0111 River water 22 Jun 2024 – Aug 2026 below 0.03 mg/l 28 Aug 2026
Nitrate as N 0117 River water 22 Jun 2024 – Aug 2026 3.69 mg/l 28 Aug 2026
Orthophosphate, reactive as P 0180 River water 22 Jun 2024 – Aug 2026 0.097 mg/l 28 Aug 2026
Conductivity at 25 C 0077 River water 22 Jun 2024 – Aug 2026 588 µS/cm 28 Aug 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 22 Jun 2024 – Aug 2026 220 mg/l 28 Aug 2026
Ammonia un-ionised as N 0119 River water 22 Jun 2024 – Aug 2026 below 0.00084 mg/l 28 Aug 2026
BOD : 5 Day ATU 0085 River water 22 Jun 2024 – Aug 2026 below 3 mg/l 28 Aug 2026
Nitrite as N 0118 River water 22 Jun 2024 – Aug 2026 0.0054 mg/l 28 Aug 2026
Nitrogen, Total Oxidised as N 0116 River water 22 Jun 2024 – Aug 2026 3.7 mg/l 28 Aug 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.