Smallhope Burn upstream of Knitsley sewage treatment works

EA name: SMALLHOPE BURN U/S KNITSLEY STW
Environment Agency sampling point NE-44400141 · 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 Dec 2025, 09:5410 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
Samples banked
22 since 30 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 412010, 548210As published, to the nearest 10 m. Open in a map
River, by its own name
Smallhope Burn
River, by the map
Smallhope BurnPlaced on the river its name gives, 2 m from the line.
Next gauge downstream
Lanchester Front Street On the Smallhope Burn · 5.1 km along the river
Why it was sampled
Monitoring (national agency policy) (22 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

99.1%

Sampled 15 Dec 2025, 10 months ago · 22 results banked

859095100105%20242025202630 Oct 2023, 11:19: 101.8%24 Nov 2023, 10:45: 96.8%5 Dec 2023, 12:33: 100%15 Jan 2024, 11:32: 99.1%19 Feb 2024, 10:32: 99.7%20 Mar 2024, 06:58: 97.4%15 Apr 2024, 10:48: 99.5%13 May 2024, 10:14: 101.4%17 Jun 2024, 11:48: 100%19 Jul 2024, 08:41: 96.2%23 Aug 2024, 08:53: 93.7%16 Sep 2024, 12:33: 89.2%17 Oct 2024, 10:43: 98.2%18 Nov 2024, 10:28: 95.8%3 Dec 2024, 09:35: 98.9%20 Jan 2025, 13:59: 98.8%3 Feb 2025, 11:15: 100.2%6 Mar 2025, 12:53: 102.4%4 Nov 2025, 13:46: 85.5%17 Nov 2025, 12:16: 98.1%2 Dec 2025, 12:06: 98.6%15 Dec 2025, 09:54: 99.1%
Every result (22)
SampledResult as publishedReads as
15 Dec 2025, 09:5499.1 99.1%
2 Dec 2025, 12:0698.6 98.6%
17 Nov 2025, 12:1698.1 98.1%
4 Nov 2025, 13:4685.5 85.5%
6 Mar 2025, 12:53102.4 102.4%
3 Feb 2025, 11:15100.2 100.2%
20 Jan 2025, 13:5998.8 98.8%
3 Dec 2024, 09:3598.9 98.9%
18 Nov 2024, 10:2895.8 95.8%
17 Oct 2024, 10:4398.2 98.2%
16 Sep 2024, 12:3389.2 89.2%
23 Aug 2024, 08:5393.7 93.7%
19 Jul 2024, 08:4196.2 96.2%
17 Jun 2024, 11:48100 100%
13 May 2024, 10:14101.4 101.4%
15 Apr 2024, 10:4899.5 99.5%
20 Mar 2024, 06:5897.4 97.4%
19 Feb 2024, 10:3299.7 99.7%
15 Jan 2024, 11:3299.1 99.1%
5 Dec 2023, 12:33100 100%
24 Nov 2023, 10:4596.8 96.8%
30 Oct 2023, 11:19101.8 101.8%

Dissolved oxygen

as O2 · code 9924 · mg/l

11.7 mg/l

Sampled 15 Dec 2025, 10 months ago · 22 results banked

8101214mg/l20242025202630 Oct 2023, 11:19: 11.6 mg/l24 Nov 2023, 10:45: 11.6 mg/l5 Dec 2023, 12:33: 12.6 mg/l15 Jan 2024, 11:32: 13.6 mg/l19 Feb 2024, 10:32: 11.9 mg/l20 Mar 2024, 06:58: 11.3 mg/l15 Apr 2024, 10:48: 11.6 mg/l13 May 2024, 10:14: 10 mg/l17 Jun 2024, 11:48: 10.2 mg/l19 Jul 2024, 08:41: 9.45 mg/l23 Aug 2024, 08:53: 9.92 mg/l16 Sep 2024, 12:33: 9.68 mg/l17 Oct 2024, 10:43: 10.9 mg/l18 Nov 2024, 10:28: 12.7 mg/l3 Dec 2024, 09:35: 13 mg/l20 Jan 2025, 13:59: 12.9 mg/l3 Feb 2025, 11:15: 12.8 mg/l6 Mar 2025, 12:53: 12.2 mg/l4 Nov 2025, 13:46: 9.36 mg/l17 Nov 2025, 12:16: 11.9 mg/l2 Dec 2025, 12:06: 11.9 mg/l15 Dec 2025, 09:54: 11.7 mg/l
Every result (22)
SampledResult as publishedReads as
15 Dec 2025, 09:5411.7 11.7 mg/l
2 Dec 2025, 12:0611.9 11.9 mg/l
17 Nov 2025, 12:1611.9 11.9 mg/l
4 Nov 2025, 13:469.36 9.36 mg/l
6 Mar 2025, 12:5312.2 12.2 mg/l
3 Feb 2025, 11:1512.8 12.8 mg/l
20 Jan 2025, 13:5912.9 12.9 mg/l
3 Dec 2024, 09:3513 13 mg/l
18 Nov 2024, 10:2812.7 12.7 mg/l
17 Oct 2024, 10:4310.9 10.9 mg/l
16 Sep 2024, 12:339.68 9.68 mg/l
23 Aug 2024, 08:539.92 9.92 mg/l
19 Jul 2024, 08:419.45 9.45 mg/l
17 Jun 2024, 11:4810.2 10.2 mg/l
13 May 2024, 10:1410 10 mg/l
15 Apr 2024, 10:4811.6 11.6 mg/l
20 Mar 2024, 06:5811.3 11.3 mg/l
19 Feb 2024, 10:3211.9 11.9 mg/l
15 Jan 2024, 11:3213.6 13.6 mg/l
5 Dec 2023, 12:3312.6 12.6 mg/l
24 Nov 2023, 10:4511.6 11.6 mg/l
30 Oct 2023, 11:1911.6 11.6 mg/l

Water temperature

code 0076 · °C

8 °C

Sampled 15 Dec 2025, 10 months ago · 22 results banked

05101520°C20242025202630 Oct 2023, 11:19: 9.6 °C24 Nov 2023, 10:45: 7.3 °C5 Dec 2023, 12:33: 5.6 °C15 Jan 2024, 11:32: 2.1 °C19 Feb 2024, 10:32: 7.7 °C20 Mar 2024, 06:58: 8.8 °C15 Apr 2024, 10:48: 8.6 °C13 May 2024, 10:14: 15.7 °C17 Jun 2024, 11:48: 14.2 °C19 Jul 2024, 08:41: 16.1 °C23 Aug 2024, 08:53: 12.7 °C16 Sep 2024, 12:33: 11.6 °C17 Oct 2024, 10:43: 10.7 °C18 Nov 2024, 10:28: 3.6 °C3 Dec 2024, 09:35: 3.9 °C20 Jan 2025, 13:59: 4 °C3 Feb 2025, 11:15: 4.9 °C6 Mar 2025, 12:53: 7.7 °C4 Nov 2025, 13:46: 11.2 °C17 Nov 2025, 12:16: 6.9 °C2 Dec 2025, 12:06: 7.2 °C15 Dec 2025, 09:54: 8 °C
Every result (22)
SampledResult as publishedReads as
15 Dec 2025, 09:548 8 °C
2 Dec 2025, 12:067.2 7.2 °C
17 Nov 2025, 12:166.9 6.9 °C
4 Nov 2025, 13:4611.2 11.2 °C
6 Mar 2025, 12:537.7 7.7 °C
3 Feb 2025, 11:154.9 4.9 °C
20 Jan 2025, 13:594 4 °C
3 Dec 2024, 09:353.9 3.9 °C
18 Nov 2024, 10:283.6 3.6 °C
17 Oct 2024, 10:4310.7 10.7 °C
16 Sep 2024, 12:3311.6 11.6 °C
23 Aug 2024, 08:5312.7 12.7 °C
19 Jul 2024, 08:4116.1 16.1 °C
17 Jun 2024, 11:4814.2 14.2 °C
13 May 2024, 10:1415.7 15.7 °C
15 Apr 2024, 10:488.6 8.6 °C
20 Mar 2024, 06:588.8 8.8 °C
19 Feb 2024, 10:327.7 7.7 °C
15 Jan 2024, 11:322.1 2.1 °C
5 Dec 2023, 12:335.6 5.6 °C
24 Nov 2023, 10:457.3 7.3 °C
30 Oct 2023, 11:199.6 9.6 °C

pH

code 0061

7.94

Sampled 15 Dec 2025, 10 months ago · 22 results banked

7.257.57.7588.258.520242025202630 Oct 2023, 11:19: 7.5324 Nov 2023, 10:45: 7.75 Dec 2023, 12:33: 8.0215 Jan 2024, 11:32: 7.9119 Feb 2024, 10:32: 7.8420 Mar 2024, 06:58: 7.8415 Apr 2024, 10:48: 8.1513 May 2024, 10:14: 8.1617 Jun 2024, 11:48: 8.0519 Jul 2024, 08:41: 7.9723 Aug 2024, 08:53: 7.8816 Sep 2024, 12:33: 7.6217 Oct 2024, 10:43: 7.5918 Nov 2024, 10:28: 8.293 Dec 2024, 09:35: 7.8620 Jan 2025, 13:59: 7.733 Feb 2025, 11:15: 8.066 Mar 2025, 12:53: 8.044 Nov 2025, 13:46: 7.5517 Nov 2025, 12:16: 8.22 Dec 2025, 12:06: 7.3315 Dec 2025, 09:54: 7.94
Every result (22)
SampledResult as publishedReads as
15 Dec 2025, 09:547.94 7.94
2 Dec 2025, 12:067.33 7.33
17 Nov 2025, 12:168.2 8.2
4 Nov 2025, 13:467.55 7.55
6 Mar 2025, 12:538.04 8.04
3 Feb 2025, 11:158.06 8.06
20 Jan 2025, 13:597.73 7.73
3 Dec 2024, 09:357.86 7.86
18 Nov 2024, 10:288.29 8.29
17 Oct 2024, 10:437.59 7.59
16 Sep 2024, 12:337.62 7.62
23 Aug 2024, 08:537.88 7.88
19 Jul 2024, 08:417.97 7.97
17 Jun 2024, 11:488.05 8.05
13 May 2024, 10:148.16 8.16
15 Apr 2024, 10:488.15 8.15
20 Mar 2024, 06:587.84 7.84
19 Feb 2024, 10:327.84 7.84
15 Jan 2024, 11:327.91 7.91
5 Dec 2023, 12:338.02 8.02
24 Nov 2023, 10:457.7 7.7
30 Oct 2023, 11:197.53 7.53

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 15 Dec 2025, 10 months ago · 22 results banked

00.20.40.60.8mg/l20242025202630 Oct 2023, 11:19: 0.032 mg/l24 Nov 2023, 10:45: below 0.03 mg/l (not detected above this)5 Dec 2023, 12:33: below 0.03 mg/l (not detected above this)15 Jan 2024, 11:32: below 0.03 mg/l (not detected above this)19 Feb 2024, 10:32: below 0.03 mg/l (not detected above this)20 Mar 2024, 06:58: below 0.03 mg/l (not detected above this)15 Apr 2024, 10:48: 0.033 mg/l13 May 2024, 10:14: 0.19 mg/l17 Jun 2024, 11:48: 0.19 mg/l19 Jul 2024, 08:41: below 0.03 mg/l (not detected above this)23 Aug 2024, 08:53: 0.78 mg/l16 Sep 2024, 12:33: below 0.03 mg/l (not detected above this)17 Oct 2024, 10:43: 0.035 mg/l18 Nov 2024, 10:28: 0.041 mg/l3 Dec 2024, 09:35: 0.038 mg/l20 Jan 2025, 13:59: below 0.03 mg/l (not detected above this)3 Feb 2025, 11:15: below 0.03 mg/l (not detected above this)6 Mar 2025, 12:53: below 0.03 mg/l (not detected above this)4 Nov 2025, 13:46: below 0.03 mg/l (not detected above this)17 Nov 2025, 12:16: below 0.03 mg/l (not detected above this)2 Dec 2025, 12:06: below 0.03 mg/l (not detected above this)15 Dec 2025, 09:54: below 0.03 mg/l (not detected above this)
Every result (22)
SampledResult as publishedReads as
15 Dec 2025, 09:54<0.03 below 0.03 mg/l (not detected above this)
2 Dec 2025, 12:06<0.03 below 0.03 mg/l (not detected above this)
17 Nov 2025, 12:16<0.03 below 0.03 mg/l (not detected above this)
4 Nov 2025, 13:46<0.03 below 0.03 mg/l (not detected above this)
6 Mar 2025, 12:53<0.03 below 0.03 mg/l (not detected above this)
3 Feb 2025, 11:15<0.03 below 0.03 mg/l (not detected above this)
20 Jan 2025, 13:59<0.03 below 0.03 mg/l (not detected above this)
3 Dec 2024, 09:350.038 0.038 mg/l
18 Nov 2024, 10:280.041 0.041 mg/l
17 Oct 2024, 10:430.035 0.035 mg/l
16 Sep 2024, 12:33<0.03 below 0.03 mg/l (not detected above this)
23 Aug 2024, 08:530.78 0.78 mg/l
19 Jul 2024, 08:41<0.03 below 0.03 mg/l (not detected above this)
17 Jun 2024, 11:480.19 0.19 mg/l
13 May 2024, 10:140.19 0.19 mg/l
15 Apr 2024, 10:480.033 0.033 mg/l
20 Mar 2024, 06:58<0.03 below 0.03 mg/l (not detected above this)
19 Feb 2024, 10:32<0.03 below 0.03 mg/l (not detected above this)
15 Jan 2024, 11:32<0.03 below 0.03 mg/l (not detected above this)
5 Dec 2023, 12:33<0.03 below 0.03 mg/l (not detected above this)
24 Nov 2023, 10:45<0.03 below 0.03 mg/l (not detected above this)
30 Oct 2023, 11:190.032 0.032 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

2.59 mg/l

Sampled 15 Dec 2025, 10 months ago · 22 results banked

0123mg/l20242025202630 Oct 2023, 11:19: 2.5 mg/l24 Nov 2023, 10:45: 2.19 mg/l5 Dec 2023, 12:33: 2.1 mg/l15 Jan 2024, 11:32: 2.19 mg/l19 Feb 2024, 10:32: 2.09 mg/l20 Mar 2024, 06:58: 2 mg/l15 Apr 2024, 10:48: 1.99 mg/l13 May 2024, 10:14: 1.08 mg/l17 Jun 2024, 11:48: 1.09 mg/l19 Jul 2024, 08:41: 0.993 mg/l23 Aug 2024, 08:53: 1.44 mg/l16 Sep 2024, 12:33: 0.606 mg/l17 Oct 2024, 10:43: 1.29 mg/l18 Nov 2024, 10:28: 1.59 mg/l3 Dec 2024, 09:35: 1.69 mg/l20 Jan 2025, 13:59: 2.7 mg/l3 Feb 2025, 11:15: 2.6 mg/l6 Mar 2025, 12:53: 1.8 mg/l4 Nov 2025, 13:46: 0.536 mg/l17 Nov 2025, 12:16: 2.89 mg/l2 Dec 2025, 12:06: 2.59 mg/l15 Dec 2025, 09:54: 2.59 mg/l
Every result (22)
SampledResult as publishedReads as
15 Dec 2025, 09:542.59 2.59 mg/l
2 Dec 2025, 12:062.59 2.59 mg/l
17 Nov 2025, 12:162.89 2.89 mg/l
4 Nov 2025, 13:460.536 0.536 mg/l
6 Mar 2025, 12:531.8 1.8 mg/l
3 Feb 2025, 11:152.6 2.6 mg/l
20 Jan 2025, 13:592.7 2.7 mg/l
3 Dec 2024, 09:351.69 1.69 mg/l
18 Nov 2024, 10:281.59 1.59 mg/l
17 Oct 2024, 10:431.29 1.29 mg/l
16 Sep 2024, 12:330.606 0.606 mg/l
23 Aug 2024, 08:531.44 1.44 mg/l
19 Jul 2024, 08:410.993 0.993 mg/l
17 Jun 2024, 11:481.09 1.09 mg/l
13 May 2024, 10:141.08 1.08 mg/l
15 Apr 2024, 10:481.99 1.99 mg/l
20 Mar 2024, 06:582 2 mg/l
19 Feb 2024, 10:322.09 2.09 mg/l
15 Jan 2024, 11:322.19 2.19 mg/l
5 Dec 2023, 12:332.1 2.1 mg/l
24 Nov 2023, 10:452.19 2.19 mg/l
30 Oct 2023, 11:192.5 2.5 mg/l

Phosphate

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

0.011 mg/l

Sampled 15 Dec 2025, 10 months ago · 22 results banked

0.010.020.030.040.05mg/l20242025202630 Oct 2023, 11:19: 0.026 mg/l24 Nov 2023, 10:45: 0.012 mg/l5 Dec 2023, 12:33: 0.023 mg/l15 Jan 2024, 11:32: 0.012 mg/l19 Feb 2024, 10:32: below 0.01 mg/l (not detected above this)20 Mar 2024, 06:58: below 0.01 mg/l (not detected above this)15 Apr 2024, 10:48: below 0.01 mg/l (not detected above this)13 May 2024, 10:14: below 0.01 mg/l (not detected above this)17 Jun 2024, 11:48: below 0.01 mg/l (not detected above this)19 Jul 2024, 08:41: 0.015 mg/l23 Aug 2024, 08:53: 0.045 mg/l16 Sep 2024, 12:33: 0.01 mg/l17 Oct 2024, 10:43: 0.026 mg/l18 Nov 2024, 10:28: below 0.01 mg/l (not detected above this)3 Dec 2024, 09:35: below 0.01 mg/l (not detected above this)20 Jan 2025, 13:59: below 0.01 mg/l (not detected above this)3 Feb 2025, 11:15: below 0.01 mg/l (not detected above this)6 Mar 2025, 12:53: below 0.01 mg/l (not detected above this)4 Nov 2025, 13:46: below 0.01 mg/l (not detected above this)17 Nov 2025, 12:16: 0.01 mg/l2 Dec 2025, 12:06: 0.017 mg/l15 Dec 2025, 09:54: 0.011 mg/l
Every result (22)
SampledResult as publishedReads as
15 Dec 2025, 09:540.011 0.011 mg/l
2 Dec 2025, 12:060.017 0.017 mg/l
17 Nov 2025, 12:160.01 0.01 mg/l
4 Nov 2025, 13:46<0.01 below 0.01 mg/l (not detected above this)
6 Mar 2025, 12:53<0.01 below 0.01 mg/l (not detected above this)
3 Feb 2025, 11:15<0.01 below 0.01 mg/l (not detected above this)
20 Jan 2025, 13:59<0.01 below 0.01 mg/l (not detected above this)
3 Dec 2024, 09:35<0.01 below 0.01 mg/l (not detected above this)
18 Nov 2024, 10:28<0.01 below 0.01 mg/l (not detected above this)
17 Oct 2024, 10:430.026 0.026 mg/l
16 Sep 2024, 12:330.01 0.01 mg/l
23 Aug 2024, 08:530.045 0.045 mg/l
19 Jul 2024, 08:410.015 0.015 mg/l
17 Jun 2024, 11:48<0.01 below 0.01 mg/l (not detected above this)
13 May 2024, 10:14<0.01 below 0.01 mg/l (not detected above this)
15 Apr 2024, 10:48<0.01 below 0.01 mg/l (not detected above this)
20 Mar 2024, 06:58<0.01 below 0.01 mg/l (not detected above this)
19 Feb 2024, 10:32<0.01 below 0.01 mg/l (not detected above this)
15 Jan 2024, 11:320.012 0.012 mg/l
5 Dec 2023, 12:330.023 0.023 mg/l
24 Nov 2023, 10:450.012 0.012 mg/l
30 Oct 2023, 11:190.026 0.026 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

258 µS/cm

Sampled 15 Dec 2025, 10 months ago · 22 results banked

100200300400500µS/cm20242025202630 Oct 2023, 11:19: 223 µS/cm24 Nov 2023, 10:45: 271 µS/cm5 Dec 2023, 12:33: 223 µS/cm15 Jan 2024, 11:32: 314 µS/cm19 Feb 2024, 10:32: 338 µS/cm20 Mar 2024, 06:58: 330 µS/cm15 Apr 2024, 10:48: 283 µS/cm13 May 2024, 10:14: 423 µS/cm17 Jun 2024, 11:48: 328 µS/cm19 Jul 2024, 08:41: 452 µS/cm23 Aug 2024, 08:53: 467 µS/cm16 Sep 2024, 12:33: 468 µS/cm17 Oct 2024, 10:43: 198 µS/cm18 Nov 2024, 10:28: 392 µS/cm3 Dec 2024, 09:35: 314 µS/cm20 Jan 2025, 13:59: 299 µS/cm3 Feb 2025, 11:15: 308 µS/cm6 Mar 2025, 12:53: 363 µS/cm4 Nov 2025, 13:46: 372 µS/cm17 Nov 2025, 12:16: 355 µS/cm2 Dec 2025, 12:06: 253 µS/cm15 Dec 2025, 09:54: 258 µS/cm
Every result (22)
SampledResult as publishedReads as
15 Dec 2025, 09:54258 258 µS/cm
2 Dec 2025, 12:06253 253 µS/cm
17 Nov 2025, 12:16355 355 µS/cm
4 Nov 2025, 13:46372 372 µS/cm
6 Mar 2025, 12:53363 363 µS/cm
3 Feb 2025, 11:15308 308 µS/cm
20 Jan 2025, 13:59299 299 µS/cm
3 Dec 2024, 09:35314 314 µS/cm
18 Nov 2024, 10:28392 392 µS/cm
17 Oct 2024, 10:43198 198 µS/cm
16 Sep 2024, 12:33468 468 µS/cm
23 Aug 2024, 08:53467 467 µS/cm
19 Jul 2024, 08:41452 452 µS/cm
17 Jun 2024, 11:48328 328 µS/cm
13 May 2024, 10:14423 423 µS/cm
15 Apr 2024, 10:48283 283 µS/cm
20 Mar 2024, 06:58330 330 µS/cm
19 Feb 2024, 10:32338 338 µS/cm
15 Jan 2024, 11:32314 314 µS/cm
5 Dec 2023, 12:33223 223 µS/cm
24 Nov 2023, 10:45271 271 µS/cm
30 Oct 2023, 11:19223 223 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 Oct 2023 – Dec 2025 99.1% 15 Dec 2025
Oxygen, Dissolved as O2 9924 River water 22 Oct 2023 – Dec 2025 11.7 mg/l 15 Dec 2025
Temperature of Water 0076 River water 22 Oct 2023 – Dec 2025 8 °C 15 Dec 2025
pH 0061 River water 22 Oct 2023 – Dec 2025 7.94 15 Dec 2025
Ammoniacal Nitrogen as N 0111 River water 22 Oct 2023 – Dec 2025 below 0.03 mg/l 15 Dec 2025
Nitrate as N 0117 River water 22 Oct 2023 – Dec 2025 2.59 mg/l 15 Dec 2025
Orthophosphate, reactive as P 0180 River water 22 Oct 2023 – Dec 2025 0.011 mg/l 15 Dec 2025
Conductivity at 25 C 0077 River water 22 Oct 2023 – Dec 2025 258 µS/cm 15 Dec 2025
Alkalinity to pH 4.5 as CaCO3 0162 River water 22 Oct 2023 – Dec 2025 56 mg/l 15 Dec 2025
Ammonia un-ionised as N 0119 River water 22 Oct 2023 – Dec 2025 below 0.00041 mg/l 15 Dec 2025
BOD : 5 Day ATU 0085 River water 16 Feb 2024 – Dec 2025 1.3 mg/l 2 Dec 2025
Nitrite as N 0118 River water 22 Oct 2023 – Dec 2025 0.0082 mg/l 15 Dec 2025
Nitrogen, Total Oxidised as N 0116 River water 22 Oct 2023 – Dec 2025 2.6 mg/l 15 Dec 2025

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.