N Sea Coast at Boygrift O/F

EA name: N SEA COAST AT BOYGRIFT O/F
Environment Agency sampling point AN-NSEA150U · 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
30 Jun 2026, 09:463 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
21 since 20 Nov 2024 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 553254, 379868As published, to the nearest 1 m. Open in a map
River, by its own name
North Sea Coast
River, by the map
Not placedIts name gives North Sea Coast; the only line close by, 1 m away, is Boy Grift Drain and is not traced into it. The river map cannot say which watercourse this is.
Next gauge downstream
Not known
Why it was sampled
Monitoring (national agency policy) (21 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

142.3%

Sampled 30 Jun 2026, 3 months ago · 21 results banked

80100120140160180%20242025202620 Nov 2024, 09:02: 94.5%5 Dec 2024, 09:20: 98.5%20 Jan 2025, 10:52: 100.5%7 Feb 2025, 08:20: 106.9%7 Mar 2025, 07:30: 112.4%7 Apr 2025, 08:55: 109.5%8 May 2025, 09:48: 119.6%26 Jun 2025, 08:36: 104.6%24 Jul 2025, 08:40: 87.2%15 Aug 2025, 09:11: 137.8%11 Sep 2025, 10:38: 117.4%6 Oct 2025, 08:37: 99%7 Nov 2025, 07:43: 102.6%5 Dec 2025, 09:01: 89.1%7 Jan 2026, 11:21: 97.1%9 Feb 2026, 11:22: 87.1%13 Mar 2026, 09:24: 99.1%27 Apr 2026, 09:41: 146.2%15 May 2026, 09:37: 161.8%29 May 2026, 07:40: 143.6%30 Jun 2026, 09:46: 142.3%
Every result (21)
SampledResult as publishedReads as
30 Jun 2026, 09:46142.3 142.3%
29 May 2026, 07:40143.6 143.6%
15 May 2026, 09:37161.8 161.8%
27 Apr 2026, 09:41146.2 146.2%
13 Mar 2026, 09:2499.1 99.1%
9 Feb 2026, 11:2287.1 87.1%
7 Jan 2026, 11:2197.1 97.1%
5 Dec 2025, 09:0189.1 89.1%
7 Nov 2025, 07:43102.6 102.6%
6 Oct 2025, 08:3799 99%
11 Sep 2025, 10:38117.4 117.4%
15 Aug 2025, 09:11137.8 137.8%
24 Jul 2025, 08:4087.2 87.2%
26 Jun 2025, 08:36104.6 104.6%
8 May 2025, 09:48119.6 119.6%
7 Apr 2025, 08:55109.5 109.5%
7 Mar 2025, 07:30112.4 112.4%
7 Feb 2025, 08:20106.9 106.9%
20 Jan 2025, 10:52100.5 100.5%
5 Dec 2024, 09:2098.5 98.5%
20 Nov 2024, 09:0294.5 94.5%

Dissolved oxygen

as O2 · code 9924 · mg/l

12.3 mg/l

Sampled 30 Jun 2026, 3 months ago · 21 results banked

7.51012.51517.5mg/l20242025202620 Nov 2024, 09:02: 12.9 mg/l5 Dec 2024, 09:20: 11.8 mg/l20 Jan 2025, 10:52: 12.7 mg/l7 Feb 2025, 08:20: 13.8 mg/l7 Mar 2025, 07:30: 13.4 mg/l7 Apr 2025, 08:55: 12.3 mg/l8 May 2025, 09:48: 12.4 mg/l26 Jun 2025, 08:36: 9.47 mg/l24 Jul 2025, 08:40: 8 mg/l15 Aug 2025, 09:11: 12.1 mg/l11 Sep 2025, 10:38: 11.6 mg/l6 Oct 2025, 08:37: 10.7 mg/l7 Nov 2025, 07:43: 11.2 mg/l5 Dec 2025, 09:01: 11.4 mg/l7 Jan 2026, 11:21: 14 mg/l9 Feb 2026, 11:22: 10.4 mg/l13 Mar 2026, 09:24: 11.7 mg/l27 Apr 2026, 09:41: 15 mg/l15 May 2026, 09:37: 17.1 mg/l29 May 2026, 07:40: 13.1 mg/l30 Jun 2026, 09:46: 12.3 mg/l
Every result (21)
SampledResult as publishedReads as
30 Jun 2026, 09:4612.3 12.3 mg/l
29 May 2026, 07:4013.1 13.1 mg/l
15 May 2026, 09:3717.1 17.1 mg/l
27 Apr 2026, 09:4115 15 mg/l
13 Mar 2026, 09:2411.7 11.7 mg/l
9 Feb 2026, 11:2210.4 10.4 mg/l
7 Jan 2026, 11:2114 14 mg/l
5 Dec 2025, 09:0111.4 11.4 mg/l
7 Nov 2025, 07:4311.2 11.2 mg/l
6 Oct 2025, 08:3710.7 10.7 mg/l
11 Sep 2025, 10:3811.6 11.6 mg/l
15 Aug 2025, 09:1112.1 12.1 mg/l
24 Jul 2025, 08:408 8 mg/l
26 Jun 2025, 08:369.47 9.47 mg/l
8 May 2025, 09:4812.4 12.4 mg/l
7 Apr 2025, 08:5512.3 12.3 mg/l
7 Mar 2025, 07:3013.4 13.4 mg/l
7 Feb 2025, 08:2013.8 13.8 mg/l
20 Jan 2025, 10:5212.7 12.7 mg/l
5 Dec 2024, 09:2011.8 11.8 mg/l
20 Nov 2024, 09:0212.9 12.9 mg/l

Water temperature

code 0076 · °C

22.4 °C

Sampled 30 Jun 2026, 3 months ago · 21 results banked

0102030°C20242025202620 Nov 2024, 09:02: 2.3 °C5 Dec 2024, 09:20: 7.5 °C20 Jan 2025, 10:52: 5.3 °C7 Feb 2025, 08:20: 4.5 °C7 Mar 2025, 07:30: 7.8 °C7 Apr 2025, 08:55: 10.1 °C8 May 2025, 09:48: 13.6 °C26 Jun 2025, 08:36: 20.1 °C24 Jul 2025, 08:40: 19.4 °C15 Aug 2025, 09:11: 21.6 °C11 Sep 2025, 10:38: 15.7 °C6 Oct 2025, 08:37: 11.7 °C7 Nov 2025, 07:43: 11.4 °C5 Dec 2025, 09:01: 4.9 °C7 Jan 2026, 11:21: 0.4 °C9 Feb 2026, 11:22: 7.5 °C13 Mar 2026, 09:24: 8.2 °C27 Apr 2026, 09:41: 14 °C15 May 2026, 09:37: 12.7 °C29 May 2026, 07:40: 19.7 °C30 Jun 2026, 09:46: 22.4 °C
Every result (21)
SampledResult as publishedReads as
30 Jun 2026, 09:4622.4 22.4 °C
29 May 2026, 07:4019.7 19.7 °C
15 May 2026, 09:3712.7 12.7 °C
27 Apr 2026, 09:4114 14 °C
13 Mar 2026, 09:248.2 8.2 °C
9 Feb 2026, 11:227.5 7.5 °C
7 Jan 2026, 11:210.4 0.4 °C
5 Dec 2025, 09:014.9 4.9 °C
7 Nov 2025, 07:4311.4 11.4 °C
6 Oct 2025, 08:3711.7 11.7 °C
11 Sep 2025, 10:3815.7 15.7 °C
15 Aug 2025, 09:1121.6 21.6 °C
24 Jul 2025, 08:4019.4 19.4 °C
26 Jun 2025, 08:3620.1 20.1 °C
8 May 2025, 09:4813.6 13.6 °C
7 Apr 2025, 08:5510.1 10.1 °C
7 Mar 2025, 07:307.8 7.8 °C
7 Feb 2025, 08:204.5 4.5 °C
20 Jan 2025, 10:525.3 5.3 °C
5 Dec 2024, 09:207.5 7.5 °C
20 Nov 2024, 09:022.3 2.3 °C

pH

code 0061

7.78

Sampled 30 Jun 2026, 3 months ago · 21 results banked

7891020242025202620 Nov 2024, 09:02: 8.285 Dec 2024, 09:20: 8.0920 Jan 2025, 10:52: 8.117 Feb 2025, 08:20: 8.257 Mar 2025, 07:30: 8.067 Apr 2025, 08:55: 8.198 May 2025, 09:48: 8.1726 Jun 2025, 08:36: 8.1524 Jul 2025, 08:40: 7.7815 Aug 2025, 09:11: 9.6911 Sep 2025, 10:38: 9.846 Oct 2025, 08:37: 8.417 Nov 2025, 07:43: 8.45 Dec 2025, 09:01: 7.927 Jan 2026, 11:21: 8.369 Feb 2026, 11:22: 7.8713 Mar 2026, 09:24: 8.2627 Apr 2026, 09:41: 8.1715 May 2026, 09:37: 8.429 May 2026, 07:40: 8.2230 Jun 2026, 09:46: 7.78
Every result (21)
SampledResult as publishedReads as
30 Jun 2026, 09:467.78 7.78
29 May 2026, 07:408.22 8.22
15 May 2026, 09:378.4 8.4
27 Apr 2026, 09:418.17 8.17
13 Mar 2026, 09:248.26 8.26
9 Feb 2026, 11:227.87 7.87
7 Jan 2026, 11:218.36 8.36
5 Dec 2025, 09:017.92 7.92
7 Nov 2025, 07:438.4 8.4
6 Oct 2025, 08:378.41 8.41
11 Sep 2025, 10:389.84 9.84
15 Aug 2025, 09:119.69 9.69
24 Jul 2025, 08:407.78 7.78
26 Jun 2025, 08:368.15 8.15
8 May 2025, 09:488.17 8.17
7 Apr 2025, 08:558.19 8.19
7 Mar 2025, 07:308.06 8.06
7 Feb 2025, 08:208.25 8.25
20 Jan 2025, 10:528.11 8.11
5 Dec 2024, 09:208.09 8.09
20 Nov 2024, 09:028.28 8.28

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.076 mg/l

Sampled 30 Jun 2026, 3 months ago · 21 results banked

00.050.10.150.2mg/l20242025202620 Nov 2024, 09:02: 0.13 mg/l5 Dec 2024, 09:20: 0.051 mg/l20 Jan 2025, 10:52: below 0.03 mg/l (not detected above this)7 Feb 2025, 08:20: 0.064 mg/l7 Mar 2025, 07:30: 0.08 mg/l7 Apr 2025, 08:55: 0.095 mg/l8 May 2025, 09:48: 0.19 mg/l26 Jun 2025, 08:36: 0.1 mg/l24 Jul 2025, 08:40: 0.16 mg/l15 Aug 2025, 09:11: 0.036 mg/l11 Sep 2025, 10:38: below 0.03 mg/l (not detected above this)6 Oct 2025, 08:37: below 0.03 mg/l (not detected above this)7 Nov 2025, 07:43: below 0.03 mg/l (not detected above this)5 Dec 2025, 09:01: 0.072 mg/l7 Jan 2026, 11:21: below 0.03 mg/l (not detected above this)9 Feb 2026, 11:22: below 0.03 mg/l (not detected above this)13 Mar 2026, 09:24: below 0.03 mg/l (not detected above this)27 Apr 2026, 09:41: below 0.03 mg/l (not detected above this)15 May 2026, 09:37: below 0.03 mg/l (not detected above this)29 May 2026, 07:40: 0.032 mg/l30 Jun 2026, 09:46: 0.076 mg/l
Every result (21)
SampledResult as publishedReads as
30 Jun 2026, 09:460.076 0.076 mg/l
29 May 2026, 07:400.032 0.032 mg/l
15 May 2026, 09:37<0.03 below 0.03 mg/l (not detected above this)
27 Apr 2026, 09:41<0.03 below 0.03 mg/l (not detected above this)
13 Mar 2026, 09:24<0.03 below 0.03 mg/l (not detected above this)
9 Feb 2026, 11:22<0.03 below 0.03 mg/l (not detected above this)
7 Jan 2026, 11:21<0.03 below 0.03 mg/l (not detected above this)
5 Dec 2025, 09:010.072 0.072 mg/l
7 Nov 2025, 07:43<0.03 below 0.03 mg/l (not detected above this)
6 Oct 2025, 08:37<0.03 below 0.03 mg/l (not detected above this)
11 Sep 2025, 10:38<0.03 below 0.03 mg/l (not detected above this)
15 Aug 2025, 09:110.036 0.036 mg/l
24 Jul 2025, 08:400.16 0.16 mg/l
26 Jun 2025, 08:360.1 0.1 mg/l
8 May 2025, 09:480.19 0.19 mg/l
7 Apr 2025, 08:550.095 0.095 mg/l
7 Mar 2025, 07:300.08 0.08 mg/l
7 Feb 2025, 08:200.064 0.064 mg/l
20 Jan 2025, 10:52<0.03 below 0.03 mg/l (not detected above this)
5 Dec 2024, 09:200.051 0.051 mg/l
20 Nov 2024, 09:020.13 0.13 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

0.588 mg/l

Sampled 30 Jun 2026, 3 months ago · 20 results banked

05101520mg/l20242025202620 Nov 2024, 09:02: 11 mg/l20 Jan 2025, 10:52: 13 mg/l7 Feb 2025, 08:20: 13 mg/l7 Mar 2025, 07:30: 12 mg/l7 Apr 2025, 08:55: 11 mg/l8 May 2025, 09:48: 7.55 mg/l26 Jun 2025, 08:36: 0.697 mg/l24 Jul 2025, 08:40: 0.192 mg/l15 Aug 2025, 09:11: below 0.196 mg/l (not detected above this)11 Sep 2025, 10:38: below 0.196 mg/l (not detected above this)6 Oct 2025, 08:37: below 0.196 mg/l (not detected above this)7 Nov 2025, 07:43: below 0.196 mg/l (not detected above this)5 Dec 2025, 09:01: 18.9 mg/l7 Jan 2026, 11:21: 14 mg/l9 Feb 2026, 11:22: 14 mg/l13 Mar 2026, 09:24: 12 mg/l27 Apr 2026, 09:41: 11.9 mg/l15 May 2026, 09:37: 9.74 mg/l29 May 2026, 07:40: 5.9 mg/l30 Jun 2026, 09:46: 0.588 mg/l
Every result (20)
SampledResult as publishedReads as
30 Jun 2026, 09:460.588 0.588 mg/l
29 May 2026, 07:405.9 5.9 mg/l
15 May 2026, 09:379.74 9.74 mg/l
27 Apr 2026, 09:4111.9 11.9 mg/l
13 Mar 2026, 09:2412 12 mg/l
9 Feb 2026, 11:2214 14 mg/l
7 Jan 2026, 11:2114 14 mg/l
5 Dec 2025, 09:0118.9 18.9 mg/l
7 Nov 2025, 07:43<0.196 below 0.196 mg/l (not detected above this)
6 Oct 2025, 08:37<0.196 below 0.196 mg/l (not detected above this)
11 Sep 2025, 10:38<0.196 below 0.196 mg/l (not detected above this)
15 Aug 2025, 09:11<0.196 below 0.196 mg/l (not detected above this)
24 Jul 2025, 08:400.192 0.192 mg/l
26 Jun 2025, 08:360.697 0.697 mg/l
8 May 2025, 09:487.55 7.55 mg/l
7 Apr 2025, 08:5511 11 mg/l
7 Mar 2025, 07:3012 12 mg/l
7 Feb 2025, 08:2013 13 mg/l
20 Jan 2025, 10:5213 13 mg/l
20 Nov 2024, 09:0211 11 mg/l

Phosphate

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

0.022 mg/l

Sampled 30 Jun 2026, 3 months ago · 20 results banked

00.020.040.060.080.1mg/l20242025202620 Nov 2024, 09:02: 0.042 mg/l20 Jan 2025, 10:52: 0.018 mg/l7 Feb 2025, 08:20: below 0.01 mg/l (not detected above this)7 Mar 2025, 07:30: below 0.01 mg/l (not detected above this)7 Apr 2025, 08:55: below 0.01 mg/l (not detected above this)8 May 2025, 09:48: below 0.01 mg/l (not detected above this)26 Jun 2025, 08:36: 0.016 mg/l24 Jul 2025, 08:40: 0.049 mg/l15 Aug 2025, 09:11: 0.037 mg/l11 Sep 2025, 10:38: 0.089 mg/l6 Oct 2025, 08:37: 0.015 mg/l7 Nov 2025, 07:43: 0.011 mg/l5 Dec 2025, 09:01: 0.056 mg/l7 Jan 2026, 11:21: 0.016 mg/l9 Feb 2026, 11:22: 0.035 mg/l13 Mar 2026, 09:24: 0.025 mg/l27 Apr 2026, 09:41: below 0.01 mg/l (not detected above this)15 May 2026, 09:37: below 0.01 mg/l (not detected above this)29 May 2026, 07:40: below 0.01 mg/l (not detected above this)30 Jun 2026, 09:46: 0.022 mg/l
Every result (20)
SampledResult as publishedReads as
30 Jun 2026, 09:460.022 0.022 mg/l
29 May 2026, 07:40<0.01 below 0.01 mg/l (not detected above this)
15 May 2026, 09:37<0.01 below 0.01 mg/l (not detected above this)
27 Apr 2026, 09:41<0.01 below 0.01 mg/l (not detected above this)
13 Mar 2026, 09:240.025 0.025 mg/l
9 Feb 2026, 11:220.035 0.035 mg/l
7 Jan 2026, 11:210.016 0.016 mg/l
5 Dec 2025, 09:010.056 0.056 mg/l
7 Nov 2025, 07:430.011 0.011 mg/l
6 Oct 2025, 08:370.015 0.015 mg/l
11 Sep 2025, 10:380.089 0.089 mg/l
15 Aug 2025, 09:110.037 0.037 mg/l
24 Jul 2025, 08:400.049 0.049 mg/l
26 Jun 2025, 08:360.016 0.016 mg/l
8 May 2025, 09:48<0.01 below 0.01 mg/l (not detected above this)
7 Apr 2025, 08:55<0.01 below 0.01 mg/l (not detected above this)
7 Mar 2025, 07:30<0.01 below 0.01 mg/l (not detected above this)
7 Feb 2025, 08:20<0.01 below 0.01 mg/l (not detected above this)
20 Jan 2025, 10:520.018 0.018 mg/l
20 Nov 2024, 09:020.042 0.042 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

786 µS/cm

Sampled 30 Jun 2026, 3 months ago · 21 results banked

02000400060008000µS/cm20242025202620 Nov 2024, 09:02: 985 µS/cm5 Dec 2024, 09:20: 1048 µS/cm20 Jan 2025, 10:52: 880 µS/cm7 Feb 2025, 08:20: 877 µS/cm7 Mar 2025, 07:30: 979 µS/cm7 Apr 2025, 08:55: 843 µS/cm8 May 2025, 09:48: 879 µS/cm26 Jun 2025, 08:36: 1010 µS/cm24 Jul 2025, 08:40: 1471 µS/cm15 Aug 2025, 09:11: 1931 µS/cm11 Sep 2025, 10:38: 4426 µS/cm6 Oct 2025, 08:37: 5301 µS/cm7 Nov 2025, 07:43: 6974 µS/cm5 Dec 2025, 09:01: 953 µS/cm7 Jan 2026, 11:21: 851 µS/cm9 Feb 2026, 11:22: 970 µS/cm13 Mar 2026, 09:24: 886 µS/cm27 Apr 2026, 09:41: 767 µS/cm15 May 2026, 09:37: 699 µS/cm29 May 2026, 07:40: 730 µS/cm30 Jun 2026, 09:46: 786 µS/cm
Every result (21)
SampledResult as publishedReads as
30 Jun 2026, 09:46786 786 µS/cm
29 May 2026, 07:40730 730 µS/cm
15 May 2026, 09:37699 699 µS/cm
27 Apr 2026, 09:41767 767 µS/cm
13 Mar 2026, 09:24886 886 µS/cm
9 Feb 2026, 11:22970 970 µS/cm
7 Jan 2026, 11:21851 851 µS/cm
5 Dec 2025, 09:01953 953 µS/cm
7 Nov 2025, 07:436974 6974 µS/cm
6 Oct 2025, 08:375301 5301 µS/cm
11 Sep 2025, 10:384426 4426 µS/cm
15 Aug 2025, 09:111931 1931 µS/cm
24 Jul 2025, 08:401471 1471 µS/cm
26 Jun 2025, 08:361010 1010 µS/cm
8 May 2025, 09:48879 879 µS/cm
7 Apr 2025, 08:55843 843 µS/cm
7 Mar 2025, 07:30979 979 µS/cm
7 Feb 2025, 08:20877 877 µS/cm
20 Jan 2025, 10:52880 880 µS/cm
5 Dec 2024, 09:201048 1048 µS/cm
20 Nov 2024, 09:02985 985 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 21 Nov 2024 – Jun 2026 142.3% 30 Jun 2026
Oxygen, Dissolved as O2 9924 River water 21 Nov 2024 – Jun 2026 12.3 mg/l 30 Jun 2026
Temperature of Water 0076 River water 21 Nov 2024 – Jun 2026 22.4 °C 30 Jun 2026
pH 0061 River water 21 Nov 2024 – Jun 2026 7.78 30 Jun 2026
Ammoniacal Nitrogen as N 0111 River water 21 Nov 2024 – Jun 2026 0.076 mg/l 30 Jun 2026
Nitrate as N 0117 River water 20 Nov 2024 – Jun 2026 0.588 mg/l 30 Jun 2026
Orthophosphate, reactive as P 0180 River water 20 Nov 2024 – Jun 2026 0.022 mg/l 30 Jun 2026
Conductivity at 25 C 0077 River water 21 Nov 2024 – Jun 2026 786 µS/cm 30 Jun 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 21 Nov 2024 – Jun 2026 170 mg/l 30 Jun 2026
Ammonia un-ionised as N 0119 River water 21 Nov 2024 – Jun 2026 0.00209 mg/l 30 Jun 2026
BOD : 5 Day ATU 0085 River water 20 Nov 2024 – Jun 2026 1.9 mg/l 30 Jun 2026
Nitrite as N 0118 River water 21 Nov 2024 – Jun 2026 0.042 mg/l 30 Jun 2026
Nitrogen, Total Oxidised as N 0116 River water 20 Nov 2024 – Jun 2026 0.63 mg/l 30 Jun 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.