Walgrave Stream at downstream of Walgrave sewage treatment works

EA name: WALGRAVE STREAM AT D/S WALGRAVE STW (also listed as “RSN1574 WALGRAVE STREAM AT D/S WALGRAVE STW”)
Environment Agency sampling point AN-RSN1574 · 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
15 Sep 2026, 11:5116 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
35 since 4 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Monitoring (national agency policy)
Where
National Grid 479427, 271379As published, to the nearest 1 m. Open in a map
River, by its own name
Walgrave Stream
River, by the map
An unnamed streamPlaced by position alone (the only river line close by), 10 m from the line.
Next gauge downstream
Geldharts Mill On the River Nene · 13 km along the river
Why it was sampled
Monitoring (national agency policy) (35 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

70.1%

Sampled 15 Sep 2026, 16 days ago · 35 results banked

406080100120%2024202520264 Oct 2023, 13:46: 79.2%2 Nov 2023, 15:26: 88.7%6 Dec 2023, 12:36: 91.4%16 Jan 2024, 11:12: 92.4%1 Feb 2024, 14:14: 89.1%8 Mar 2024, 13:38: 93.6%22 Apr 2024, 16:20: 98.7%7 May 2024, 13:34: 91.2%3 Jun 2024, 15:34: 80.6%3 Jul 2024, 14:20: 85.4%2 Aug 2024, 13:24: 86.2%2 Sep 2024, 13:42: 69.1%10 Oct 2024, 09:56: 82.7%8 Nov 2024, 11:25: 78.2%4 Dec 2024, 13:48: 91.8%8 Jan 2025, 13:38: 96.4%3 Feb 2025, 14:20: 96.5%5 Mar 2025, 10:22: 97.2%22 Apr 2025, 09:46: 80.4%9 May 2025, 12:21: 102.6%10 Jun 2025, 14:17: 81.7%8 Jul 2025, 16:05: 71.8%20 Aug 2025, 11:38: 66.6%9 Sep 2025, 12:07: 49%30 Oct 2025, 13:48: 77%14 Nov 2025, 10:30: 81.4%9 Dec 2025, 12:56: 92.6%20 Jan 2026, 12:28: 91.6%10 Feb 2026, 11:58: 92.4%25 Mar 2026, 13:15: 109.9%22 Apr 2026, 11:57: 107.6%26 May 2026, 12:12: 67.4%15 Jun 2026, 14:29: 78.2%15 Jul 2026, 12:37: 75%15 Sep 2026, 11:51: 70.1%
Every result (35)
SampledResult as publishedReads as
15 Sep 2026, 11:5170.1 70.1%
15 Jul 2026, 12:3775 75%
15 Jun 2026, 14:2978.2 78.2%
26 May 2026, 12:1267.4 67.4%
22 Apr 2026, 11:57107.6 107.6%
25 Mar 2026, 13:15109.9 109.9%
10 Feb 2026, 11:5892.4 92.4%
20 Jan 2026, 12:2891.6 91.6%
9 Dec 2025, 12:5692.6 92.6%
14 Nov 2025, 10:3081.4 81.4%
30 Oct 2025, 13:4877 77%
9 Sep 2025, 12:0749 49%
20 Aug 2025, 11:3866.6 66.6%
8 Jul 2025, 16:0571.8 71.8%
10 Jun 2025, 14:1781.7 81.7%
9 May 2025, 12:21102.6 102.6%
22 Apr 2025, 09:4680.4 80.4%
5 Mar 2025, 10:2297.2 97.2%
3 Feb 2025, 14:2096.5 96.5%
8 Jan 2025, 13:3896.4 96.4%
4 Dec 2024, 13:4891.8 91.8%
8 Nov 2024, 11:2578.2 78.2%
10 Oct 2024, 09:5682.7 82.7%
2 Sep 2024, 13:4269.1 69.1%
2 Aug 2024, 13:2486.2 86.2%
3 Jul 2024, 14:2085.4 85.4%
3 Jun 2024, 15:3480.6 80.6%
7 May 2024, 13:3491.2 91.2%
22 Apr 2024, 16:2098.7 98.7%
8 Mar 2024, 13:3893.6 93.6%
1 Feb 2024, 14:1489.1 89.1%
16 Jan 2024, 11:1292.4 92.4%
6 Dec 2023, 12:3691.4 91.4%
2 Nov 2023, 15:2688.7 88.7%
4 Oct 2023, 13:4679.2 79.2%

Dissolved oxygen

as O2 · code 9924 · mg/l

6.67 mg/l

Sampled 15 Sep 2026, 16 days ago · 35 results banked

468101214mg/l2024202520264 Oct 2023, 13:46: 8.21 mg/l2 Nov 2023, 15:26: 9.78 mg/l6 Dec 2023, 12:36: 12.2 mg/l16 Jan 2024, 11:12: 12.4 mg/l1 Feb 2024, 14:14: 11.1 mg/l8 Mar 2024, 13:38: 11.2 mg/l22 Apr 2024, 16:20: 11.4 mg/l7 May 2024, 13:34: 9.74 mg/l3 Jun 2024, 15:34: 8.32 mg/l3 Jul 2024, 14:20: 8.89 mg/l2 Aug 2024, 13:24: 8.1 mg/l2 Sep 2024, 13:42: 6.73 mg/l10 Oct 2024, 09:56: 9.12 mg/l8 Nov 2024, 11:25: 8.81 mg/l4 Dec 2024, 13:48: 11.2 mg/l8 Jan 2025, 13:38: 12.7 mg/l3 Feb 2025, 14:20: 12.2 mg/l5 Mar 2025, 10:22: 12.5 mg/l22 Apr 2025, 09:46: 9.53 mg/l9 May 2025, 12:21: 11.4 mg/l10 Jun 2025, 14:17: 8.21 mg/l8 Jul 2025, 16:05: 7.08 mg/l20 Aug 2025, 11:38: 6.81 mg/l9 Sep 2025, 12:07: 5.04 mg/l30 Oct 2025, 13:48: 8.86 mg/l14 Nov 2025, 10:30: 8.95 mg/l9 Dec 2025, 12:56: 10.5 mg/l20 Jan 2026, 12:28: 11.1 mg/l10 Feb 2026, 11:58: 11.1 mg/l25 Mar 2026, 13:15: 12.9 mg/l22 Apr 2026, 11:57: 12.2 mg/l26 May 2026, 12:12: 6.32 mg/l15 Jun 2026, 14:29: 8.04 mg/l15 Jul 2026, 12:37: 7.02 mg/l15 Sep 2026, 11:51: 6.67 mg/l
Every result (35)
SampledResult as publishedReads as
15 Sep 2026, 11:516.67 6.67 mg/l
15 Jul 2026, 12:377.02 7.02 mg/l
15 Jun 2026, 14:298.04 8.04 mg/l
26 May 2026, 12:126.32 6.32 mg/l
22 Apr 2026, 11:5712.2 12.2 mg/l
25 Mar 2026, 13:1512.9 12.9 mg/l
10 Feb 2026, 11:5811.1 11.1 mg/l
20 Jan 2026, 12:2811.1 11.1 mg/l
9 Dec 2025, 12:5610.5 10.5 mg/l
14 Nov 2025, 10:308.95 8.95 mg/l
30 Oct 2025, 13:488.86 8.86 mg/l
9 Sep 2025, 12:075.04 5.04 mg/l
20 Aug 2025, 11:386.81 6.81 mg/l
8 Jul 2025, 16:057.08 7.08 mg/l
10 Jun 2025, 14:178.21 8.21 mg/l
9 May 2025, 12:2111.4 11.4 mg/l
22 Apr 2025, 09:469.53 9.53 mg/l
5 Mar 2025, 10:2212.5 12.5 mg/l
3 Feb 2025, 14:2012.2 12.2 mg/l
8 Jan 2025, 13:3812.7 12.7 mg/l
4 Dec 2024, 13:4811.2 11.2 mg/l
8 Nov 2024, 11:258.81 8.81 mg/l
10 Oct 2024, 09:569.12 9.12 mg/l
2 Sep 2024, 13:426.73 6.73 mg/l
2 Aug 2024, 13:248.1 8.1 mg/l
3 Jul 2024, 14:208.89 8.89 mg/l
3 Jun 2024, 15:348.32 8.32 mg/l
7 May 2024, 13:349.74 9.74 mg/l
22 Apr 2024, 16:2011.4 11.4 mg/l
8 Mar 2024, 13:3811.2 11.2 mg/l
1 Feb 2024, 14:1411.1 11.1 mg/l
16 Jan 2024, 11:1212.4 12.4 mg/l
6 Dec 2023, 12:3612.2 12.2 mg/l
2 Nov 2023, 15:269.78 9.78 mg/l
4 Oct 2023, 13:468.21 8.21 mg/l

Water temperature

code 0076 · °C

17.6 °C

Sampled 15 Sep 2026, 16 days ago · 35 results banked

05101520°C2024202520264 Oct 2023, 13:46: 13.6 °C2 Nov 2023, 15:26: 10.9 °C6 Dec 2023, 12:36: 3.3 °C16 Jan 2024, 11:12: 3.1 °C1 Feb 2024, 14:14: 5.9 °C8 Mar 2024, 13:38: 7.4 °C22 Apr 2024, 16:20: 8.8 °C7 May 2024, 13:34: 12.3 °C3 Jun 2024, 15:34: 13.8 °C3 Jul 2024, 14:20: 13.4 °C2 Aug 2024, 13:24: 18.2 °C2 Sep 2024, 13:42: 16.5 °C10 Oct 2024, 09:56: 10.9 °C8 Nov 2024, 11:25: 10 °C4 Dec 2024, 13:48: 6.8 °C8 Jan 2025, 13:38: 3.9 °C3 Feb 2025, 14:20: 5.2 °C5 Mar 2025, 10:22: 4.6 °C22 Apr 2025, 09:46: 7.9 °C9 May 2025, 12:21: 10.7 °C10 Jun 2025, 14:17: 15 °C8 Jul 2025, 16:05: 15.9 °C20 Aug 2025, 11:38: 14.2 °C9 Sep 2025, 12:07: 14 °C30 Oct 2025, 13:48: 9.1 °C14 Nov 2025, 10:30: 11 °C9 Dec 2025, 12:56: 9.8 °C20 Jan 2026, 12:28: 7 °C10 Feb 2026, 11:58: 7.2 °C25 Mar 2026, 13:15: 8.2 °C22 Apr 2026, 11:57: 9.8 °C26 May 2026, 12:12: 18.3 °C15 Jun 2026, 14:29: 14 °C15 Jul 2026, 12:37: 18.4 °C15 Sep 2026, 11:51: 17.6 °C
Every result (35)
SampledResult as publishedReads as
15 Sep 2026, 11:5117.6 17.6 °C
15 Jul 2026, 12:3718.4 18.4 °C
15 Jun 2026, 14:2914 14 °C
26 May 2026, 12:1218.3 18.3 °C
22 Apr 2026, 11:579.8 9.8 °C
25 Mar 2026, 13:158.2 8.2 °C
10 Feb 2026, 11:587.2 7.2 °C
20 Jan 2026, 12:287 7 °C
9 Dec 2025, 12:569.8 9.8 °C
14 Nov 2025, 10:3011 11 °C
30 Oct 2025, 13:489.1 9.1 °C
9 Sep 2025, 12:0714 14 °C
20 Aug 2025, 11:3814.2 14.2 °C
8 Jul 2025, 16:0515.9 15.9 °C
10 Jun 2025, 14:1715 15 °C
9 May 2025, 12:2110.7 10.7 °C
22 Apr 2025, 09:467.9 7.9 °C
5 Mar 2025, 10:224.6 4.6 °C
3 Feb 2025, 14:205.2 5.2 °C
8 Jan 2025, 13:383.9 3.9 °C
4 Dec 2024, 13:486.8 6.8 °C
8 Nov 2024, 11:2510 10 °C
10 Oct 2024, 09:5610.9 10.9 °C
2 Sep 2024, 13:4216.5 16.5 °C
2 Aug 2024, 13:2418.2 18.2 °C
3 Jul 2024, 14:2013.4 13.4 °C
3 Jun 2024, 15:3413.8 13.8 °C
7 May 2024, 13:3412.3 12.3 °C
22 Apr 2024, 16:208.8 8.8 °C
8 Mar 2024, 13:387.4 7.4 °C
1 Feb 2024, 14:145.9 5.9 °C
16 Jan 2024, 11:123.1 3.1 °C
6 Dec 2023, 12:363.3 3.3 °C
2 Nov 2023, 15:2610.9 10.9 °C
4 Oct 2023, 13:4613.6 13.6 °C

pH

code 0061

7.82

Sampled 15 Sep 2026, 16 days ago · 35 results banked

7.257.57.7588.252024202520264 Oct 2023, 13:46: 7.932 Nov 2023, 15:26: 7.916 Dec 2023, 12:36: 7.8816 Jan 2024, 11:12: 7.991 Feb 2024, 14:14: 7.968 Mar 2024, 13:38: 7.9122 Apr 2024, 16:20: 8.097 May 2024, 13:34: 8.043 Jun 2024, 15:34: 7.753 Jul 2024, 14:20: 7.792 Aug 2024, 13:24: 7.792 Sep 2024, 13:42: 7.7110 Oct 2024, 09:56: 7.748 Nov 2024, 11:25: 7.554 Dec 2024, 13:48: 7.858 Jan 2025, 13:38: 7.943 Feb 2025, 14:20: 7.895 Mar 2025, 10:22: 8.0522 Apr 2025, 09:46: 7.859 May 2025, 12:21: 7.9810 Jun 2025, 14:17: 7.898 Jul 2025, 16:05: 7.8420 Aug 2025, 11:38: 7.949 Sep 2025, 12:07: 7.3230 Oct 2025, 13:48: 7.9414 Nov 2025, 10:30: 7.899 Dec 2025, 12:56: 7.820 Jan 2026, 12:28: 7.8110 Feb 2026, 11:58: 7.8325 Mar 2026, 13:15: 8.1322 Apr 2026, 11:57: 8.0326 May 2026, 12:12: 7.7315 Jun 2026, 14:29: 7.9815 Jul 2026, 12:37: 7.5515 Sep 2026, 11:51: 7.82
Every result (35)
SampledResult as publishedReads as
15 Sep 2026, 11:517.82 7.82
15 Jul 2026, 12:377.55 7.55
15 Jun 2026, 14:297.98 7.98
26 May 2026, 12:127.73 7.73
22 Apr 2026, 11:578.03 8.03
25 Mar 2026, 13:158.13 8.13
10 Feb 2026, 11:587.83 7.83
20 Jan 2026, 12:287.81 7.81
9 Dec 2025, 12:567.8 7.8
14 Nov 2025, 10:307.89 7.89
30 Oct 2025, 13:487.94 7.94
9 Sep 2025, 12:077.32 7.32
20 Aug 2025, 11:387.94 7.94
8 Jul 2025, 16:057.84 7.84
10 Jun 2025, 14:177.89 7.89
9 May 2025, 12:217.98 7.98
22 Apr 2025, 09:467.85 7.85
5 Mar 2025, 10:228.05 8.05
3 Feb 2025, 14:207.89 7.89
8 Jan 2025, 13:387.94 7.94
4 Dec 2024, 13:487.85 7.85
8 Nov 2024, 11:257.55 7.55
10 Oct 2024, 09:567.74 7.74
2 Sep 2024, 13:427.71 7.71
2 Aug 2024, 13:247.79 7.79
3 Jul 2024, 14:207.79 7.79
3 Jun 2024, 15:347.75 7.75
7 May 2024, 13:348.04 8.04
22 Apr 2024, 16:208.09 8.09
8 Mar 2024, 13:387.91 7.91
1 Feb 2024, 14:147.96 7.96
16 Jan 2024, 11:127.99 7.99
6 Dec 2023, 12:367.88 7.88
2 Nov 2023, 15:267.91 7.91
4 Oct 2023, 13:467.93 7.93

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.041 mg/l

Sampled 15 Sep 2026, 16 days ago · 35 results banked

00.050.10.150.2mg/l2024202520264 Oct 2023, 13:46: below 0.03 mg/l (not detected above this)2 Nov 2023, 15:26: below 0.03 mg/l (not detected above this)6 Dec 2023, 12:36: below 0.03 mg/l (not detected above this)16 Jan 2024, 11:12: 0.031 mg/l1 Feb 2024, 14:14: 0.16 mg/l8 Mar 2024, 13:38: 0.11 mg/l22 Apr 2024, 16:20: 0.041 mg/l7 May 2024, 13:34: 0.064 mg/l3 Jun 2024, 15:34: 0.1 mg/l3 Jul 2024, 14:20: below 0.03 mg/l (not detected above this)2 Aug 2024, 13:24: 0.031 mg/l2 Sep 2024, 13:42: below 0.03 mg/l (not detected above this)10 Oct 2024, 09:56: 0.051 mg/l8 Nov 2024, 11:25: below 0.03 mg/l (not detected above this)4 Dec 2024, 13:48: 0.032 mg/l8 Jan 2025, 13:38: below 0.03 mg/l (not detected above this)3 Feb 2025, 14:20: below 0.03 mg/l (not detected above this)5 Mar 2025, 10:22: 0.032 mg/l22 Apr 2025, 09:46: 0.1 mg/l9 May 2025, 12:21: below 0.03 mg/l (not detected above this)10 Jun 2025, 14:17: 0.035 mg/l8 Jul 2025, 16:05: 0.047 mg/l20 Aug 2025, 11:38: 0.059 mg/l9 Sep 2025, 12:07: below 0.03 mg/l (not detected above this)30 Oct 2025, 13:48: below 0.03 mg/l (not detected above this)14 Nov 2025, 10:30: below 0.03 mg/l (not detected above this)9 Dec 2025, 12:56: 0.097 mg/l20 Jan 2026, 12:28: below 0.03 mg/l (not detected above this)10 Feb 2026, 11:58: below 0.03 mg/l (not detected above this)25 Mar 2026, 13:15: below 0.03 mg/l (not detected above this)22 Apr 2026, 11:57: below 0.03 mg/l (not detected above this)26 May 2026, 12:12: 0.11 mg/l15 Jun 2026, 14:29: 0.076 mg/l15 Jul 2026, 12:37: 0.043 mg/l15 Sep 2026, 11:51: 0.041 mg/l
Every result (35)
SampledResult as publishedReads as
15 Sep 2026, 11:510.041 0.041 mg/l
15 Jul 2026, 12:370.043 0.043 mg/l
15 Jun 2026, 14:290.076 0.076 mg/l
26 May 2026, 12:120.11 0.11 mg/l
22 Apr 2026, 11:57<0.03 below 0.03 mg/l (not detected above this)
25 Mar 2026, 13:15<0.03 below 0.03 mg/l (not detected above this)
10 Feb 2026, 11:58<0.03 below 0.03 mg/l (not detected above this)
20 Jan 2026, 12:28<0.03 below 0.03 mg/l (not detected above this)
9 Dec 2025, 12:560.097 0.097 mg/l
14 Nov 2025, 10:30<0.03 below 0.03 mg/l (not detected above this)
30 Oct 2025, 13:48<0.03 below 0.03 mg/l (not detected above this)
9 Sep 2025, 12:07<0.03 below 0.03 mg/l (not detected above this)
20 Aug 2025, 11:380.059 0.059 mg/l
8 Jul 2025, 16:050.047 0.047 mg/l
10 Jun 2025, 14:170.035 0.035 mg/l
9 May 2025, 12:21<0.03 below 0.03 mg/l (not detected above this)
22 Apr 2025, 09:460.1 0.1 mg/l
5 Mar 2025, 10:220.032 0.032 mg/l
3 Feb 2025, 14:20<0.03 below 0.03 mg/l (not detected above this)
8 Jan 2025, 13:38<0.03 below 0.03 mg/l (not detected above this)
4 Dec 2024, 13:480.032 0.032 mg/l
8 Nov 2024, 11:25<0.03 below 0.03 mg/l (not detected above this)
10 Oct 2024, 09:560.051 0.051 mg/l
2 Sep 2024, 13:42<0.03 below 0.03 mg/l (not detected above this)
2 Aug 2024, 13:240.031 0.031 mg/l
3 Jul 2024, 14:20<0.03 below 0.03 mg/l (not detected above this)
3 Jun 2024, 15:340.1 0.1 mg/l
7 May 2024, 13:340.064 0.064 mg/l
22 Apr 2024, 16:200.041 0.041 mg/l
8 Mar 2024, 13:380.11 0.11 mg/l
1 Feb 2024, 14:140.16 0.16 mg/l
16 Jan 2024, 11:120.031 0.031 mg/l
6 Dec 2023, 12:36<0.03 below 0.03 mg/l (not detected above this)
2 Nov 2023, 15:26<0.03 below 0.03 mg/l (not detected above this)
4 Oct 2023, 13:46<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

1.29 mg/l

Sampled 15 Sep 2026, 16 days ago · 35 results banked

05101520mg/l2024202520264 Oct 2023, 13:46: 2.18 mg/l2 Nov 2023, 15:26: 12 mg/l6 Dec 2023, 12:36: 8.99 mg/l16 Jan 2024, 11:12: 7.18 mg/l1 Feb 2024, 14:14: 6.75 mg/l8 Mar 2024, 13:38: 6.04 mg/l22 Apr 2024, 16:20: 4.66 mg/l7 May 2024, 13:34: 6.04 mg/l3 Jun 2024, 15:34: 4.23 mg/l3 Jul 2024, 14:20: 2.87 mg/l2 Aug 2024, 13:24: 3.29 mg/l2 Sep 2024, 13:42: 1.59 mg/l10 Oct 2024, 09:56: 4.82 mg/l8 Nov 2024, 11:25: 3.58 mg/l4 Dec 2024, 13:48: 5.88 mg/l8 Jan 2025, 13:38: 6.79 mg/l3 Feb 2025, 14:20: 6.69 mg/l5 Mar 2025, 10:22: 6.09 mg/l22 Apr 2025, 09:46: 2.57 mg/l9 May 2025, 12:21: 3.38 mg/l10 Jun 2025, 14:17: 2.29 mg/l8 Jul 2025, 16:05: 0.52 mg/l20 Aug 2025, 11:38: 5.14 mg/l9 Sep 2025, 12:07: below 0.196 mg/l (not detected above this)30 Oct 2025, 13:48: 0.996 mg/l14 Nov 2025, 10:30: 0.745 mg/l9 Dec 2025, 12:56: 16 mg/l20 Jan 2026, 12:28: 11 mg/l10 Feb 2026, 11:58: 9.19 mg/l25 Mar 2026, 13:15: 5.18 mg/l22 Apr 2026, 11:57: 3.5 mg/l26 May 2026, 12:12: 1.45 mg/l15 Jun 2026, 14:29: 2.98 mg/l15 Jul 2026, 12:37: 16.9 mg/l15 Sep 2026, 11:51: 1.29 mg/l
Every result (35)
SampledResult as publishedReads as
15 Sep 2026, 11:511.29 1.29 mg/l
15 Jul 2026, 12:3716.9 16.9 mg/l
15 Jun 2026, 14:292.98 2.98 mg/l
26 May 2026, 12:121.45 1.45 mg/l
22 Apr 2026, 11:573.5 3.5 mg/l
25 Mar 2026, 13:155.18 5.18 mg/l
10 Feb 2026, 11:589.19 9.19 mg/l
20 Jan 2026, 12:2811 11 mg/l
9 Dec 2025, 12:5616 16 mg/l
14 Nov 2025, 10:300.745 0.745 mg/l
30 Oct 2025, 13:480.996 0.996 mg/l
9 Sep 2025, 12:07<0.196 below 0.196 mg/l (not detected above this)
20 Aug 2025, 11:385.14 5.14 mg/l
8 Jul 2025, 16:050.52 0.52 mg/l
10 Jun 2025, 14:172.29 2.29 mg/l
9 May 2025, 12:213.38 3.38 mg/l
22 Apr 2025, 09:462.57 2.57 mg/l
5 Mar 2025, 10:226.09 6.09 mg/l
3 Feb 2025, 14:206.69 6.69 mg/l
8 Jan 2025, 13:386.79 6.79 mg/l
4 Dec 2024, 13:485.88 5.88 mg/l
8 Nov 2024, 11:253.58 3.58 mg/l
10 Oct 2024, 09:564.82 4.82 mg/l
2 Sep 2024, 13:421.59 1.59 mg/l
2 Aug 2024, 13:243.29 3.29 mg/l
3 Jul 2024, 14:202.87 2.87 mg/l
3 Jun 2024, 15:344.23 4.23 mg/l
7 May 2024, 13:346.04 6.04 mg/l
22 Apr 2024, 16:204.66 4.66 mg/l
8 Mar 2024, 13:386.04 6.04 mg/l
1 Feb 2024, 14:146.75 6.75 mg/l
16 Jan 2024, 11:127.18 7.18 mg/l
6 Dec 2023, 12:368.99 8.99 mg/l
2 Nov 2023, 15:2612 12 mg/l
4 Oct 2023, 13:462.18 2.18 mg/l

Phosphate

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

0.041 mg/l

Sampled 15 Sep 2026, 16 days ago · 35 results banked

00.20.40.6mg/l2024202520264 Oct 2023, 13:46: 0.44 mg/l2 Nov 2023, 15:26: 0.073 mg/l6 Dec 2023, 12:36: 0.056 mg/l16 Jan 2024, 11:12: 0.07 mg/l1 Feb 2024, 14:14: 0.1 mg/l8 Mar 2024, 13:38: 0.074 mg/l22 Apr 2024, 16:20: 0.068 mg/l7 May 2024, 13:34: 0.085 mg/l3 Jun 2024, 15:34: 0.12 mg/l3 Jul 2024, 14:20: 0.29 mg/l2 Aug 2024, 13:24: 0.36 mg/l2 Sep 2024, 13:42: 0.3 mg/l10 Oct 2024, 09:56: 0.068 mg/l8 Nov 2024, 11:25: 0.09 mg/l4 Dec 2024, 13:48: 0.044 mg/l8 Jan 2025, 13:38: 0.055 mg/l3 Feb 2025, 14:20: 0.034 mg/l5 Mar 2025, 10:22: 0.027 mg/l22 Apr 2025, 09:46: 0.056 mg/l9 May 2025, 12:21: 0.057 mg/l10 Jun 2025, 14:17: 0.09 mg/l8 Jul 2025, 16:05: 0.11 mg/l20 Aug 2025, 11:38: 0.11 mg/l9 Sep 2025, 12:07: 0.031 mg/l30 Oct 2025, 13:48: 0.14 mg/l14 Nov 2025, 10:30: 0.16 mg/l9 Dec 2025, 12:56: 0.074 mg/l20 Jan 2026, 12:28: 0.039 mg/l10 Feb 2026, 11:58: 0.037 mg/l25 Mar 2026, 13:15: 0.028 mg/l22 Apr 2026, 11:57: 0.028 mg/l26 May 2026, 12:12: 0.061 mg/l15 Jun 2026, 14:29: 0.088 mg/l15 Jul 2026, 12:37: 0.052 mg/l15 Sep 2026, 11:51: 0.041 mg/l
Every result (35)
SampledResult as publishedReads as
15 Sep 2026, 11:510.041 0.041 mg/l
15 Jul 2026, 12:370.052 0.052 mg/l
15 Jun 2026, 14:290.088 0.088 mg/l
26 May 2026, 12:120.061 0.061 mg/l
22 Apr 2026, 11:570.028 0.028 mg/l
25 Mar 2026, 13:150.028 0.028 mg/l
10 Feb 2026, 11:580.037 0.037 mg/l
20 Jan 2026, 12:280.039 0.039 mg/l
9 Dec 2025, 12:560.074 0.074 mg/l
14 Nov 2025, 10:300.16 0.16 mg/l
30 Oct 2025, 13:480.14 0.14 mg/l
9 Sep 2025, 12:070.031 0.031 mg/l
20 Aug 2025, 11:380.11 0.11 mg/l
8 Jul 2025, 16:050.11 0.11 mg/l
10 Jun 2025, 14:170.09 0.09 mg/l
9 May 2025, 12:210.057 0.057 mg/l
22 Apr 2025, 09:460.056 0.056 mg/l
5 Mar 2025, 10:220.027 0.027 mg/l
3 Feb 2025, 14:200.034 0.034 mg/l
8 Jan 2025, 13:380.055 0.055 mg/l
4 Dec 2024, 13:480.044 0.044 mg/l
8 Nov 2024, 11:250.09 0.09 mg/l
10 Oct 2024, 09:560.068 0.068 mg/l
2 Sep 2024, 13:420.3 0.3 mg/l
2 Aug 2024, 13:240.36 0.36 mg/l
3 Jul 2024, 14:200.29 0.29 mg/l
3 Jun 2024, 15:340.12 0.12 mg/l
7 May 2024, 13:340.085 0.085 mg/l
22 Apr 2024, 16:200.068 0.068 mg/l
8 Mar 2024, 13:380.074 0.074 mg/l
1 Feb 2024, 14:140.1 0.1 mg/l
16 Jan 2024, 11:120.07 0.07 mg/l
6 Dec 2023, 12:360.056 0.056 mg/l
2 Nov 2023, 15:260.073 0.073 mg/l
4 Oct 2023, 13:460.44 0.44 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

736 µS/cm

Sampled 15 Sep 2026, 16 days ago · 35 results banked

500600700800900µS/cm2024202520264 Oct 2023, 13:46: 674 µS/cm2 Nov 2023, 15:26: 504 µS/cm6 Dec 2023, 12:36: 528 µS/cm16 Jan 2024, 11:12: 615 µS/cm1 Feb 2024, 14:14: 658 µS/cm8 Mar 2024, 13:38: 600 µS/cm22 Apr 2024, 16:20: 624 µS/cm7 May 2024, 13:34: 657 µS/cm3 Jun 2024, 15:34: 647 µS/cm3 Jul 2024, 14:20: 685 µS/cm2 Aug 2024, 13:24: 668 µS/cm2 Sep 2024, 13:42: 648 µS/cm10 Oct 2024, 09:56: 549 µS/cm8 Nov 2024, 11:25: 629 µS/cm4 Dec 2024, 13:48: 575 µS/cm8 Jan 2025, 13:38: 517 µS/cm3 Feb 2025, 14:20: 606 µS/cm5 Mar 2025, 10:22: 620 µS/cm22 Apr 2025, 09:46: 750 µS/cm9 May 2025, 12:21: 744 µS/cm10 Jun 2025, 14:17: 739 µS/cm8 Jul 2025, 16:05: 752 µS/cm20 Aug 2025, 11:38: 608 µS/cm9 Sep 2025, 12:07: 708 µS/cm30 Oct 2025, 13:48: 871 µS/cm14 Nov 2025, 10:30: 627 µS/cm9 Dec 2025, 12:56: 530 µS/cm20 Jan 2026, 12:28: 550 µS/cm10 Feb 2026, 11:58: 505 µS/cm25 Mar 2026, 13:15: 595 µS/cm22 Apr 2026, 11:57: 693 µS/cm26 May 2026, 12:12: 732 µS/cm15 Jun 2026, 14:29: 726 µS/cm15 Jul 2026, 12:37: 518 µS/cm15 Sep 2026, 11:51: 736 µS/cm
Every result (35)
SampledResult as publishedReads as
15 Sep 2026, 11:51736 736 µS/cm
15 Jul 2026, 12:37518 518 µS/cm
15 Jun 2026, 14:29726 726 µS/cm
26 May 2026, 12:12732 732 µS/cm
22 Apr 2026, 11:57693 693 µS/cm
25 Mar 2026, 13:15595 595 µS/cm
10 Feb 2026, 11:58505 505 µS/cm
20 Jan 2026, 12:28550 550 µS/cm
9 Dec 2025, 12:56530 530 µS/cm
14 Nov 2025, 10:30627 627 µS/cm
30 Oct 2025, 13:48871 871 µS/cm
9 Sep 2025, 12:07708 708 µS/cm
20 Aug 2025, 11:38608 608 µS/cm
8 Jul 2025, 16:05752 752 µS/cm
10 Jun 2025, 14:17739 739 µS/cm
9 May 2025, 12:21744 744 µS/cm
22 Apr 2025, 09:46750 750 µS/cm
5 Mar 2025, 10:22620 620 µS/cm
3 Feb 2025, 14:20606 606 µS/cm
8 Jan 2025, 13:38517 517 µS/cm
4 Dec 2024, 13:48575 575 µS/cm
8 Nov 2024, 11:25629 629 µS/cm
10 Oct 2024, 09:56549 549 µS/cm
2 Sep 2024, 13:42648 648 µS/cm
2 Aug 2024, 13:24668 668 µS/cm
3 Jul 2024, 14:20685 685 µS/cm
3 Jun 2024, 15:34647 647 µS/cm
7 May 2024, 13:34657 657 µS/cm
22 Apr 2024, 16:20624 624 µS/cm
8 Mar 2024, 13:38600 600 µS/cm
1 Feb 2024, 14:14658 658 µS/cm
16 Jan 2024, 11:12615 615 µS/cm
6 Dec 2023, 12:36528 528 µS/cm
2 Nov 2023, 15:26504 504 µS/cm
4 Oct 2023, 13:46674 674 µS/cm

Everything measured here

68 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 68 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 35 Oct 2023 – Sep 2026 70.1% 15 Sep 2026
Oxygen, Dissolved as O2 9924 River water 35 Oct 2023 – Sep 2026 6.67 mg/l 15 Sep 2026
Temperature of Water 0076 River water 35 Oct 2023 – Sep 2026 17.6 °C 15 Sep 2026
pH 0061 River water 35 Oct 2023 – Sep 2026 7.82 15 Sep 2026
Ammoniacal Nitrogen as N 0111 River water 35 Oct 2023 – Sep 2026 0.041 mg/l 15 Sep 2026
Nitrate as N 0117 River water 35 Oct 2023 – Sep 2026 1.29 mg/l 15 Sep 2026
Orthophosphate, reactive as P 0180 River water 35 Oct 2023 – Sep 2026 0.041 mg/l 15 Sep 2026
Conductivity at 25 C 0077 River water 35 Oct 2023 – Sep 2026 736 µS/cm 15 Sep 2026
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 River water 2 Jan 2024 – Sep 2024 below 0.002 µg/l 2 Sep 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
2H,2H,3H,3H-Perfluorooctanoic acid 2989 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
3-Perfluoroheptylpropanoic acid 2925 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
3:3 Fluorotelomer carboxylic acid 2926 River water 2 Jan 2024 – Sep 2024 below 0.004 µg/l 2 Sep 2024
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 River water 2 Jan 2024 – Sep 2024 below 0.005 µg/l 2 Sep 2024
4:2 Fluorotelomer sulfonic acid 2987 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
6:2 Fluorotelomer sulfonic acid 2984 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
8:2 Fluorotelomer sulfonic acid 2983 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Alkalinity to pH 4.5 as CaCO3 0162 River water 35 Oct 2023 – Sep 2026 220 mg/l 15 Sep 2026
Ammonia un-ionised as N 0119 River water 35 Oct 2023 – Sep 2026 0.00087 mg/l 15 Sep 2026
Carbon, Organic, Dissolved as C :- {DOC} 0301 River water 34 Oct 2023 – Sep 2026 4.9 mg/l 15 Sep 2026
Chloride 0172 River water 35 Oct 2023 – Sep 2026 33 mg/l 15 Sep 2026
Flow Type 2896 River water 23 Sep 2024 – Sep 2026 Moderate Flow 15 Sep 2026
GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 River water 2 Feb 2026 – May 2026 1 text result 26 May 2026
Hexafluoropropylene oxide dimer acid (Gen X) 2981 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
LCMS Screen : Semi Quantitative 7299 River water 1 Jul 2026 – Jul 2026 1 text result 15 Jul 2026
N-Ethylperfluorooctanesulfonamide 2977 River water 2 Jan 2024 – Sep 2024 below 0.002 µg/l 2 Sep 2024
N-methylperfluorooctanesulfonamide 2975 River water 2 Jan 2024 – Sep 2024 below 0.002 µg/l 2 Sep 2024
Nitrite as N 0118 River water 35 Oct 2023 – Sep 2026 0.0069 mg/l 15 Sep 2026
Nitrogen, Total as N 9686 River water 35 Oct 2023 – Sep 2026 1.8 mg/l 15 Sep 2026
Nitrogen, Total Oxidised as N 0116 River water 35 Oct 2023 – Sep 2026 1.3 mg/l 15 Sep 2026
Perfluoro(2-ethoxyethane)sulfonic acid 2924 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluoro(4-methoxybutanoic) acid 2923 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluoro-3,6-dioxaheptanoic acid 2922 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluoro-3-methoxypropanoic acid 2921 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluoro-4-ethylcyclohexanesulfonic acid 2973 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluorobutanesulfonic acid 2972 River water 2 Jan 2024 – Sep 2024 0.0017 µg/l 2 Sep 2024
Perfluorobutanoic acid 2995 River water 2 Jan 2024 – Sep 2024 0.0022 µg/l 2 Sep 2024
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluorodecanesulfonic acid 2969 River water 2 Jan 2024 – Sep 2024 below 0.002 µg/l 2 Sep 2024
Perfluorodecanoic acid 8892 River water 2 Jan 2024 – Sep 2024 below 0.002 µg/l 2 Sep 2024
Perfluorododecane sulfonic acid 2968 River water 2 Jan 2024 – Sep 2024 below 0.005 µg/l 2 Sep 2024
Perfluorododecanoic acid 8894 River water 2 Jan 2024 – Sep 2024 below 0.002 µg/l 2 Sep 2024
Perfluoroheptanesulfonic acid 2967 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluoroheptanoic acid 8889 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
Perfluorohexanesulfonamide 2965 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluorohexanesulfonic acid (B) 2944 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluorohexanesulfonic acid (L) 2964 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluorohexanoic acid 8888 River water 2 Jan 2024 – Sep 2024 0.0017 µg/l 2 Sep 2024
Perfluorononanesulfonic acid 2963 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluorononanoic acid 8891 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
Perfluorooctadecanoic acid 2962 River water 2 Jan 2024 – Sep 2024 below 0.002 µg/l 2 Sep 2024
Perfluorooctanesulfonamide 2961 River water 2 Jan 2024 – Sep 2024 below 0.001 µg/l 2 Sep 2024
Perfluorooctanesulfonic acid (branched) 2960 River water 1 Sep 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluorooctanesulfonic acid (linear) 2959 River water 1 Sep 2024 – Sep 2024 0.00057 µg/l 2 Sep 2024
Perfluorooctanoic acid 8890 River water 2 Jan 2024 – Sep 2024 0.0028 µg/l 2 Sep 2024
Perfluoropentanesulfonic acid 2957 River water 2 Jan 2024 – Sep 2024 below 0.0005 µg/l 2 Sep 2024
Perfluoropentanoic acid 8887 River water 2 Jan 2024 – Sep 2024 0.0018 µg/l 2 Sep 2024
Perfluorotetradecanoic acid 8895 River water 2 Jan 2024 – Sep 2024 below 0.006 µg/l 2 Sep 2024
Perfluorotridecanoic acid 2955 River water 2 Jan 2024 – Sep 2024 below 0.005 µg/l 2 Sep 2024
Perfluoroundecane sulfonic acid 2953 River water 2 Jan 2024 – Sep 2024 below 0.004 µg/l 2 Sep 2024
Perfluoroundecanoic acid 8893 River water 2 Jan 2024 – Sep 2024 below 0.002 µg/l 2 Sep 2024
Phosphorus, Total as P 0348 River water 35 Oct 2023 – Sep 2026 0.048 mg/l 15 Sep 2026
Silica, reactive as SiO2 0182 River water 35 Oct 2023 – Sep 2026 10 mg/l 15 Sep 2026
Solids, Suspended at 105 C 0135 River water 9 Dec 2025 – Sep 2026 3.4 mg/l 15 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.