Costa Beck upstream of confluence of Pickering Beck

EA name: COSTA BECK U/S CONF OF PICKERING BECK (also listed as “COSTA BECK UPSTREAM CONFLUENCE OF PICKERING BECK”)
Environment Agency sampling point NE-49600451 · 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
8 May 2026, 10:395 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 26 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 478557, 479863As published, to the nearest 1 m. Open in a map
River, by its own name
Costa Beck
River, by the map
Costa BeckPlaced on the river its name gives, 8 m from the line.
Next gauge downstream
Howe Bridge On the River Rye · 6.2 km along the river
Nearest gauge upstream
Pickering Costa Beck On the Costa Beck · 5.6 km along the river
Why it was sampled
Monitoring (national agency policy) (16 samples)
Environmental monitoring statutory (EU directives) (6 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

100.1%

Sampled 8 May 2026, 5 months ago · 22 results banked

406080100120%20242025202626 Oct 2023, 15:39: 58.5%28 Nov 2023, 08:52: 62.8%7 Dec 2023, 11:00: 66.8%10 Jan 2024, 13:00: 79.2%20 Feb 2024, 14:25: 86.5%12 Mar 2024, 12:25: 90.3%17 Apr 2024, 11:10: 86.9%16 May 2024, 10:46: 93.7%26 Jun 2024, 12:54: 100.7%22 Jul 2024, 11:46: 91.4%30 Sep 2024, 11:42: 97.6%18 Oct 2024, 12:02: 88.6%19 Nov 2024, 11:41: 91.5%2 Dec 2024, 14:18: 83.9%23 Jan 2025, 10:23: 90.2%12 Feb 2025, 10:42: 85.6%11 Mar 2025, 10:55: 95.8%13 Jan 2026, 14:30: 72.6%27 Feb 2026, 09:11: 79%2 Mar 2026, 14:00: 97.4%9 Apr 2026, 12:53: 100%8 May 2026, 10:39: 100.1%
Every result (22)
SampledResult as publishedReads as
8 May 2026, 10:39100.1 100.1%
9 Apr 2026, 12:53100 100%
2 Mar 2026, 14:0097.4 97.4%
27 Feb 2026, 09:1179 79%
13 Jan 2026, 14:3072.6 72.6%
11 Mar 2025, 10:5595.8 95.8%
12 Feb 2025, 10:4285.6 85.6%
23 Jan 2025, 10:2390.2 90.2%
2 Dec 2024, 14:1883.9 83.9%
19 Nov 2024, 11:4191.5 91.5%
18 Oct 2024, 12:0288.6 88.6%
30 Sep 2024, 11:4297.6 97.6%
22 Jul 2024, 11:4691.4 91.4%
26 Jun 2024, 12:54100.7 100.7%
16 May 2024, 10:4693.7 93.7%
17 Apr 2024, 11:1086.9 86.9%
12 Mar 2024, 12:2590.3 90.3%
20 Feb 2024, 14:2586.5 86.5%
10 Jan 2024, 13:0079.2 79.2%
7 Dec 2023, 11:0066.8 66.8%
28 Nov 2023, 08:5262.8 62.8%
26 Oct 2023, 15:3958.5 58.5%

Dissolved oxygen

as O2 · code 9924 · mg/l

11.1 mg/l

Sampled 8 May 2026, 5 months ago · 22 results banked

681012mg/l20242025202626 Oct 2023, 15:39: 6.48 mg/l28 Nov 2023, 08:52: 7.81 mg/l7 Dec 2023, 11:00: 8.2 mg/l10 Jan 2024, 13:00: 9.43 mg/l20 Feb 2024, 14:25: 9.82 mg/l12 Mar 2024, 12:25: 10.5 mg/l17 Apr 2024, 11:10: 10.2 mg/l16 May 2024, 10:46: 10.2 mg/l26 Jun 2024, 12:54: 10.3 mg/l22 Jul 2024, 11:46: 9.44 mg/l30 Sep 2024, 11:42: 11 mg/l18 Oct 2024, 12:02: 9.84 mg/l19 Nov 2024, 11:41: 11.3 mg/l2 Dec 2024, 14:18: 9.71 mg/l23 Jan 2025, 10:23: 11.2 mg/l12 Feb 2025, 10:42: 10.4 mg/l11 Mar 2025, 10:55: 11.5 mg/l13 Jan 2026, 14:30: 8.8 mg/l27 Feb 2026, 09:11: 9.01 mg/l2 Mar 2026, 14:00: 11 mg/l9 Apr 2026, 12:53: 11.1 mg/l8 May 2026, 10:39: 11.1 mg/l
Every result (22)
SampledResult as publishedReads as
8 May 2026, 10:3911.1 11.1 mg/l
9 Apr 2026, 12:5311.1 11.1 mg/l
2 Mar 2026, 14:0011 11 mg/l
27 Feb 2026, 09:119.01 9.01 mg/l
13 Jan 2026, 14:308.8 8.8 mg/l
11 Mar 2025, 10:5511.5 11.5 mg/l
12 Feb 2025, 10:4210.4 10.4 mg/l
23 Jan 2025, 10:2311.2 11.2 mg/l
2 Dec 2024, 14:189.71 9.71 mg/l
19 Nov 2024, 11:4111.3 11.3 mg/l
18 Oct 2024, 12:029.84 9.84 mg/l
30 Sep 2024, 11:4211 11 mg/l
22 Jul 2024, 11:469.44 9.44 mg/l
26 Jun 2024, 12:5410.3 10.3 mg/l
16 May 2024, 10:4610.2 10.2 mg/l
17 Apr 2024, 11:1010.2 10.2 mg/l
12 Mar 2024, 12:2510.5 10.5 mg/l
20 Feb 2024, 14:259.82 9.82 mg/l
10 Jan 2024, 13:009.43 9.43 mg/l
7 Dec 2023, 11:008.2 8.2 mg/l
28 Nov 2023, 08:527.81 7.81 mg/l
26 Oct 2023, 15:396.48 6.48 mg/l

Water temperature

code 0076 · °C

10.7 °C

Sampled 8 May 2026, 5 months ago · 22 results banked

57.51012.515°C20242025202626 Oct 2023, 15:39: 10.7 °C28 Nov 2023, 08:52: 6 °C7 Dec 2023, 11:00: 6.5 °C10 Jan 2024, 13:00: 7.7 °C20 Feb 2024, 14:25: 9.7 °C12 Mar 2024, 12:25: 8.6 °C17 Apr 2024, 11:10: 8.2 °C16 May 2024, 10:46: 11.3 °C26 Jun 2024, 12:54: 14.4 °C22 Jul 2024, 11:46: 13.8 °C30 Sep 2024, 11:42: 9.9 °C18 Oct 2024, 12:02: 10.6 °C19 Nov 2024, 11:41: 6.3 °C2 Dec 2024, 14:18: 8.9 °C23 Jan 2025, 10:23: 5.9 °C12 Feb 2025, 10:42: 7 °C11 Mar 2025, 10:55: 7.3 °C13 Jan 2026, 14:30: 7 °C27 Feb 2026, 09:11: 9.5 °C2 Mar 2026, 14:00: 9.9 °C9 Apr 2026, 12:53: 10.7 °C8 May 2026, 10:39: 10.7 °C
Every result (22)
SampledResult as publishedReads as
8 May 2026, 10:3910.7 10.7 °C
9 Apr 2026, 12:5310.7 10.7 °C
2 Mar 2026, 14:009.9 9.9 °C
27 Feb 2026, 09:119.5 9.5 °C
13 Jan 2026, 14:307 7 °C
11 Mar 2025, 10:557.3 7.3 °C
12 Feb 2025, 10:427 7 °C
23 Jan 2025, 10:235.9 5.9 °C
2 Dec 2024, 14:188.9 8.9 °C
19 Nov 2024, 11:416.3 6.3 °C
18 Oct 2024, 12:0210.6 10.6 °C
30 Sep 2024, 11:429.9 9.9 °C
22 Jul 2024, 11:4613.8 13.8 °C
26 Jun 2024, 12:5414.4 14.4 °C
16 May 2024, 10:4611.3 11.3 °C
17 Apr 2024, 11:108.2 8.2 °C
12 Mar 2024, 12:258.6 8.6 °C
20 Feb 2024, 14:259.7 9.7 °C
10 Jan 2024, 13:007.7 7.7 °C
7 Dec 2023, 11:006.5 6.5 °C
28 Nov 2023, 08:526 6 °C
26 Oct 2023, 15:3910.7 10.7 °C

pH

code 0061

8.05

Sampled 8 May 2026, 5 months ago · 22 results banked

77.588.520242025202626 Oct 2023, 15:39: 7.3628 Nov 2023, 08:52: 7.477 Dec 2023, 11:00: 7.3110 Jan 2024, 13:00: 7.6720 Feb 2024, 14:25: 7.6612 Mar 2024, 12:25: 7.7717 Apr 2024, 11:10: 7.7916 May 2024, 10:46: 7.7426 Jun 2024, 12:54: 8.3922 Jul 2024, 11:46: 7.8330 Sep 2024, 11:42: 7.8418 Oct 2024, 12:02: 7.7919 Nov 2024, 11:41: 7.912 Dec 2024, 14:18: 7.7323 Jan 2025, 10:23: 7.7712 Feb 2025, 10:42: 7.8411 Mar 2025, 10:55: 7.9913 Jan 2026, 14:30: 7.5827 Feb 2026, 09:11: 7.592 Mar 2026, 14:00: 7.879 Apr 2026, 12:53: 7.988 May 2026, 10:39: 8.05
Every result (22)
SampledResult as publishedReads as
8 May 2026, 10:398.05 8.05
9 Apr 2026, 12:537.98 7.98
2 Mar 2026, 14:007.87 7.87
27 Feb 2026, 09:117.59 7.59
13 Jan 2026, 14:307.58 7.58
11 Mar 2025, 10:557.99 7.99
12 Feb 2025, 10:427.84 7.84
23 Jan 2025, 10:237.77 7.77
2 Dec 2024, 14:187.73 7.73
19 Nov 2024, 11:417.91 7.91
18 Oct 2024, 12:027.79 7.79
30 Sep 2024, 11:427.84 7.84
22 Jul 2024, 11:467.83 7.83
26 Jun 2024, 12:548.39 8.39
16 May 2024, 10:467.74 7.74
17 Apr 2024, 11:107.79 7.79
12 Mar 2024, 12:257.77 7.77
20 Feb 2024, 14:257.66 7.66
10 Jan 2024, 13:007.67 7.67
7 Dec 2023, 11:007.31 7.31
28 Nov 2023, 08:527.47 7.47
26 Oct 2023, 15:397.36 7.36

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.11 mg/l

Sampled 8 May 2026, 5 months ago · 22 results banked

00.050.10.150.2mg/l20242025202626 Oct 2023, 15:39: 0.066 mg/l28 Nov 2023, 08:52: 0.16 mg/l7 Dec 2023, 11:00: 0.087 mg/l10 Jan 2024, 13:00: 0.13 mg/l20 Feb 2024, 14:25: 0.14 mg/l12 Mar 2024, 12:25: 0.13 mg/l17 Apr 2024, 11:10: 0.13 mg/l16 May 2024, 10:46: 0.11 mg/l26 Jun 2024, 12:54: below 0.03 mg/l (not detected above this)22 Jul 2024, 11:46: below 0.03 mg/l (not detected above this)30 Sep 2024, 11:42: below 0.03 mg/l (not detected above this)18 Oct 2024, 12:02: below 0.03 mg/l (not detected above this)19 Nov 2024, 11:41: 0.098 mg/l2 Dec 2024, 14:18: 0.16 mg/l23 Jan 2025, 10:23: 0.18 mg/l12 Feb 2025, 10:42: 0.18 mg/l11 Mar 2025, 10:55: 0.056 mg/l13 Jan 2026, 14:30: 0.15 mg/l27 Feb 2026, 09:11: 0.12 mg/l2 Mar 2026, 14:00: 0.062 mg/l9 Apr 2026, 12:53: 0.066 mg/l8 May 2026, 10:39: 0.11 mg/l
Every result (22)
SampledResult as publishedReads as
8 May 2026, 10:390.11 0.11 mg/l
9 Apr 2026, 12:530.066 0.066 mg/l
2 Mar 2026, 14:000.062 0.062 mg/l
27 Feb 2026, 09:110.12 0.12 mg/l
13 Jan 2026, 14:300.15 0.15 mg/l
11 Mar 2025, 10:550.056 0.056 mg/l
12 Feb 2025, 10:420.18 0.18 mg/l
23 Jan 2025, 10:230.18 0.18 mg/l
2 Dec 2024, 14:180.16 0.16 mg/l
19 Nov 2024, 11:410.098 0.098 mg/l
18 Oct 2024, 12:02<0.03 below 0.03 mg/l (not detected above this)
30 Sep 2024, 11:42<0.03 below 0.03 mg/l (not detected above this)
22 Jul 2024, 11:46<0.03 below 0.03 mg/l (not detected above this)
26 Jun 2024, 12:54<0.03 below 0.03 mg/l (not detected above this)
16 May 2024, 10:460.11 0.11 mg/l
17 Apr 2024, 11:100.13 0.13 mg/l
12 Mar 2024, 12:250.13 0.13 mg/l
20 Feb 2024, 14:250.14 0.14 mg/l
10 Jan 2024, 13:000.13 0.13 mg/l
7 Dec 2023, 11:000.087 0.087 mg/l
28 Nov 2023, 08:520.16 0.16 mg/l
26 Oct 2023, 15:390.066 0.066 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

6.86 mg/l

Sampled 8 May 2026, 5 months ago · 21 results banked

246810mg/l20242025202626 Oct 2023, 15:39: 7.11 mg/l28 Nov 2023, 08:52: 4.74 mg/l7 Dec 2023, 11:00: 6.64 mg/l10 Jan 2024, 13:00: 8.23 mg/l20 Feb 2024, 14:25: 7.85 mg/l12 Mar 2024, 12:25: 8.16 mg/l17 Apr 2024, 11:10: 8.26 mg/l16 May 2024, 10:46: 8.25 mg/l26 Jun 2024, 12:54: 5.69 mg/l22 Jul 2024, 11:46: 6.65 mg/l30 Sep 2024, 11:42: 3.9 mg/l18 Oct 2024, 12:02: 5.25 mg/l19 Nov 2024, 11:41: 6.35 mg/l23 Jan 2025, 10:23: 7.64 mg/l12 Feb 2025, 10:42: 7.15 mg/l11 Mar 2025, 10:55: 6.37 mg/l13 Jan 2026, 14:30: 7.85 mg/l27 Feb 2026, 09:11: 8.96 mg/l2 Mar 2026, 14:00: 6.18 mg/l9 Apr 2026, 12:53: 6.47 mg/l8 May 2026, 10:39: 6.86 mg/l
Every result (21)
SampledResult as publishedReads as
8 May 2026, 10:396.86 6.86 mg/l
9 Apr 2026, 12:536.47 6.47 mg/l
2 Mar 2026, 14:006.18 6.18 mg/l
27 Feb 2026, 09:118.96 8.96 mg/l
13 Jan 2026, 14:307.85 7.85 mg/l
11 Mar 2025, 10:556.37 6.37 mg/l
12 Feb 2025, 10:427.15 7.15 mg/l
23 Jan 2025, 10:237.64 7.64 mg/l
19 Nov 2024, 11:416.35 6.35 mg/l
18 Oct 2024, 12:025.25 5.25 mg/l
30 Sep 2024, 11:423.9 3.9 mg/l
22 Jul 2024, 11:466.65 6.65 mg/l
26 Jun 2024, 12:545.69 5.69 mg/l
16 May 2024, 10:468.25 8.25 mg/l
17 Apr 2024, 11:108.26 8.26 mg/l
12 Mar 2024, 12:258.16 8.16 mg/l
20 Feb 2024, 14:257.85 7.85 mg/l
10 Jan 2024, 13:008.23 8.23 mg/l
7 Dec 2023, 11:006.64 6.64 mg/l
28 Nov 2023, 08:524.74 4.74 mg/l
26 Oct 2023, 15:397.11 7.11 mg/l

Phosphate

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

0.012 mg/l

Sampled 8 May 2026, 5 months ago · 22 results banked

00.020.040.060.080.1mg/l20242025202626 Oct 2023, 15:39: 0.056 mg/l28 Nov 2023, 08:52: 0.084 mg/l7 Dec 2023, 11:00: 0.057 mg/l10 Jan 2024, 13:00: 0.036 mg/l20 Feb 2024, 14:25: 0.032 mg/l12 Mar 2024, 12:25: 0.025 mg/l17 Apr 2024, 11:10: 0.028 mg/l16 May 2024, 10:46: 0.019 mg/l26 Jun 2024, 12:54: below 0.01 mg/l (not detected above this)22 Jul 2024, 11:46: 0.016 mg/l30 Sep 2024, 11:42: below 0.01 mg/l (not detected above this)18 Oct 2024, 12:02: 0.024 mg/l19 Nov 2024, 11:41: 0.024 mg/l2 Dec 2024, 14:18: 0.026 mg/l23 Jan 2025, 10:23: 0.039 mg/l12 Feb 2025, 10:42: 0.036 mg/l11 Mar 2025, 10:55: 0.016 mg/l13 Jan 2026, 14:30: 0.085 mg/l27 Feb 2026, 09:11: 0.016 mg/l2 Mar 2026, 14:00: 0.017 mg/l9 Apr 2026, 12:53: 0.01 mg/l8 May 2026, 10:39: 0.012 mg/l
Every result (22)
SampledResult as publishedReads as
8 May 2026, 10:390.012 0.012 mg/l
9 Apr 2026, 12:530.01 0.01 mg/l
2 Mar 2026, 14:000.017 0.017 mg/l
27 Feb 2026, 09:110.016 0.016 mg/l
13 Jan 2026, 14:300.085 0.085 mg/l
11 Mar 2025, 10:550.016 0.016 mg/l
12 Feb 2025, 10:420.036 0.036 mg/l
23 Jan 2025, 10:230.039 0.039 mg/l
2 Dec 2024, 14:180.026 0.026 mg/l
19 Nov 2024, 11:410.024 0.024 mg/l
18 Oct 2024, 12:020.024 0.024 mg/l
30 Sep 2024, 11:42<0.01 below 0.01 mg/l (not detected above this)
22 Jul 2024, 11:460.016 0.016 mg/l
26 Jun 2024, 12:54<0.01 below 0.01 mg/l (not detected above this)
16 May 2024, 10:460.019 0.019 mg/l
17 Apr 2024, 11:100.028 0.028 mg/l
12 Mar 2024, 12:250.025 0.025 mg/l
20 Feb 2024, 14:250.032 0.032 mg/l
10 Jan 2024, 13:000.036 0.036 mg/l
7 Dec 2023, 11:000.057 0.057 mg/l
28 Nov 2023, 08:520.084 0.084 mg/l
26 Oct 2023, 15:390.056 0.056 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

597 µS/cm

Sampled 8 May 2026, 5 months ago · 22 results banked

300400500600700800µS/cm20242025202626 Oct 2023, 15:39: 702 µS/cm28 Nov 2023, 08:52: 540 µS/cm7 Dec 2023, 11:00: 703 µS/cm10 Jan 2024, 13:00: 713 µS/cm20 Feb 2024, 14:25: 716 µS/cm12 Mar 2024, 12:25: 702 µS/cm17 Apr 2024, 11:10: 697 µS/cm16 May 2024, 10:46: 677 µS/cm26 Jun 2024, 12:54: 507 µS/cm22 Jul 2024, 11:46: 573 µS/cm30 Sep 2024, 11:42: 356 µS/cm18 Oct 2024, 12:02: 521 µS/cm19 Nov 2024, 11:41: 594 µS/cm2 Dec 2024, 14:18: 723 µS/cm23 Jan 2025, 10:23: 710 µS/cm12 Feb 2025, 10:42: 699 µS/cm11 Mar 2025, 10:55: 587 µS/cm13 Jan 2026, 14:30: 711 µS/cm27 Feb 2026, 09:11: 634 µS/cm2 Mar 2026, 14:00: 552 µS/cm9 Apr 2026, 12:53: 584 µS/cm8 May 2026, 10:39: 597 µS/cm
Every result (22)
SampledResult as publishedReads as
8 May 2026, 10:39597 597 µS/cm
9 Apr 2026, 12:53584 584 µS/cm
2 Mar 2026, 14:00552 552 µS/cm
27 Feb 2026, 09:11634 634 µS/cm
13 Jan 2026, 14:30711 711 µS/cm
11 Mar 2025, 10:55587 587 µS/cm
12 Feb 2025, 10:42699 699 µS/cm
23 Jan 2025, 10:23710 710 µS/cm
2 Dec 2024, 14:18723 723 µS/cm
19 Nov 2024, 11:41594 594 µS/cm
18 Oct 2024, 12:02521 521 µS/cm
30 Sep 2024, 11:42356 356 µS/cm
22 Jul 2024, 11:46573 573 µS/cm
26 Jun 2024, 12:54507 507 µS/cm
16 May 2024, 10:46677 677 µS/cm
17 Apr 2024, 11:10697 697 µS/cm
12 Mar 2024, 12:25702 702 µS/cm
20 Feb 2024, 14:25716 716 µS/cm
10 Jan 2024, 13:00713 713 µS/cm
7 Dec 2023, 11:00703 703 µS/cm
28 Nov 2023, 08:52540 540 µS/cm
26 Oct 2023, 15:39702 702 µS/cm

Everything measured here

60 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 60 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 22 Oct 2023 – May 2026 100.1% 8 May 2026
Oxygen, Dissolved as O2 9924 River water 22 Oct 2023 – May 2026 11.1 mg/l 8 May 2026
Temperature of Water 0076 River water 22 Oct 2023 – May 2026 10.7 °C 8 May 2026
pH 0061 River water 22 Oct 2023 – May 2026 8.05 8 May 2026
Ammoniacal Nitrogen as N 0111 River water 22 Oct 2023 – May 2026 0.11 mg/l 8 May 2026
Nitrate as N 0117 River water 21 Oct 2023 – May 2026 6.86 mg/l 8 May 2026
Orthophosphate, reactive as P 0180 River water 22 Oct 2023 – May 2026 0.012 mg/l 8 May 2026
Conductivity at 25 C 0077 River water 22 Oct 2023 – May 2026 597 µS/cm 8 May 2026
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 River water 1 Oct 2024 – Oct 2024 below 0.002 µg/l 18 Oct 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
2H,2H,3H,3H-Perfluorooctanoic acid 2989 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
3-Perfluoroheptylpropanoic acid 2925 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
3:3 Fluorotelomer carboxylic acid 2926 River water 1 Oct 2024 – Oct 2024 below 0.004 µg/l 18 Oct 2024
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 River water 1 Oct 2024 – Oct 2024 below 0.005 µg/l 18 Oct 2024
4:2 Fluorotelomer sulfonic acid 2987 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
6:2 Fluorotelomer sulfonic acid 2984 River water 1 Oct 2024 – Oct 2024 0.0041 µg/l 18 Oct 2024
8:2 Fluorotelomer sulfonic acid 2983 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Alkalinity to pH 4.5 as CaCO3 0162 River water 22 Oct 2023 – May 2026 200 mg/l 8 May 2026
Ammonia un-ionised as N 0119 River water 22 Oct 2023 – May 2026 0.00211 mg/l 8 May 2026
BOD : 5 Day ATU 0085 River water 18 Feb 2024 – May 2026 1.4 mg/l 8 May 2026
Hexafluoropropylene oxide dimer acid (Gen X) 2981 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
N-Ethylperfluorooctanesulfonamide 2977 River water 1 Oct 2024 – Oct 2024 below 0.002 µg/l 18 Oct 2024
N-methylperfluorooctanesulfonamide 2975 River water 1 Oct 2024 – Oct 2024 below 0.002 µg/l 18 Oct 2024
Nitrite as N 0118 River water 22 Oct 2023 – May 2026 0.045 mg/l 8 May 2026
Nitrogen, Total Oxidised as N 0116 River water 21 Oct 2023 – May 2026 6.9 mg/l 8 May 2026
Perfluoro(2-ethoxyethane)sulfonic acid 2924 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluoro(4-methoxybutanoic) acid 2923 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluoro-3,6-dioxaheptanoic acid 2922 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluoro-3-methoxypropanoic acid 2921 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluoro-4-ethylcyclohexanesulfonic acid 2973 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluorobutanesulfonic acid 2972 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
Perfluorobutanoic acid 2995 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluorodecanesulfonic acid 2969 River water 1 Oct 2024 – Oct 2024 below 0.002 µg/l 18 Oct 2024
Perfluorodecanoic acid 8892 River water 1 Oct 2024 – Oct 2024 below 0.002 µg/l 18 Oct 2024
Perfluorododecane sulfonic acid 2968 River water 1 Oct 2024 – Oct 2024 below 0.005 µg/l 18 Oct 2024
Perfluorododecanoic acid 8894 River water 1 Oct 2024 – Oct 2024 below 0.002 µg/l 18 Oct 2024
Perfluoroheptanesulfonic acid 2967 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluoroheptanoic acid 8889 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
Perfluorohexanesulfonamide 2965 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluorohexanesulfonic acid (B) 2944 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluorohexanesulfonic acid (L) 2964 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluorohexanoic acid 8888 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluorononanesulfonic acid 2963 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluorononanoic acid 8891 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
Perfluorooctadecanoic acid 2962 River water 1 Oct 2024 – Oct 2024 below 0.002 µg/l 18 Oct 2024
Perfluorooctanesulfonamide 2961 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
Perfluorooctanesulfonic acid (branched) 2960 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluorooctanesulfonic acid (linear) 2959 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluorooctanoic acid 8890 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluoropentanesulfonic acid 2957 River water 1 Oct 2024 – Oct 2024 below 0.0005 µg/l 18 Oct 2024
Perfluoropentanoic acid 8887 River water 1 Oct 2024 – Oct 2024 below 0.001 µg/l 18 Oct 2024
Perfluorotetradecanoic acid 8895 River water 1 Oct 2024 – Oct 2024 below 0.006 µg/l 18 Oct 2024
Perfluorotridecanoic acid 2955 River water 1 Oct 2024 – Oct 2024 below 0.005 µg/l 18 Oct 2024
Perfluoroundecane sulfonic acid 2953 River water 1 Oct 2024 – Oct 2024 below 0.004 µg/l 18 Oct 2024
Perfluoroundecanoic acid 8893 River water 1 Oct 2024 – Oct 2024 below 0.002 µg/l 18 Oct 2024

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.