River Carey at Heale Bridge

EA name: RIVER CAREY AT HEALE BRIDGE
Environment Agency sampling point SW-81281105 · 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
14 Aug 2026, 09:5148 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
18 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 Environmental monitoring statutory (EU directives)
Where
National Grid 235986, 86300As published, to the nearest 1 m. Open in a map
River, by its own name
Carey
River, by the map
River CareyPlaced on the river its name gives, 4 m from the line.
Next gauge downstream
Polson Bridge On the River Tamar · 2.3 km along the river
Why it was sampled
Environmental monitoring statutory (EU directives) (12 samples)
Planned investigation (local monitoring) (6 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

78.8%

Sampled 14 Aug 2026, 48 days ago · 18 results banked

708090100110%2024202520264 Oct 2023, 13:08: 97.3%1 Nov 2023, 11:15: 95.1%15 Dec 2023, 12:54: 96.6%23 Jan 2024, 10:00: 96.8%13 Feb 2024, 12:39: 99%4 Mar 2024, 12:30: 97.1%5 Jun 2024, 14:45: 103.7%3 Jul 2024, 10:14: 94.2%2 Aug 2024, 14:12: 98.3%4 Sep 2024, 12:55: 90.5%8 Oct 2024, 12:45: 96.7%4 Nov 2024, 13:29: 97%10 Dec 2024, 10:20: 96.9%9 Apr 2026, 13:55: 100.8%6 May 2026, 10:40: 96.8%8 Jun 2026, 14:44: 96.7%14 Jul 2026, 11:25: 87%14 Aug 2026, 09:51: 78.8%
Every result (18)
SampledResult as publishedReads as
14 Aug 2026, 09:5178.8 78.8%
14 Jul 2026, 11:2587 87%
8 Jun 2026, 14:4496.7 96.7%
6 May 2026, 10:4096.8 96.8%
9 Apr 2026, 13:55100.8 100.8%
10 Dec 2024, 10:2096.9 96.9%
4 Nov 2024, 13:2997 97%
8 Oct 2024, 12:4596.7 96.7%
4 Sep 2024, 12:5590.5 90.5%
2 Aug 2024, 14:1298.3 98.3%
3 Jul 2024, 10:1494.2 94.2%
5 Jun 2024, 14:45103.7 103.7%
4 Mar 2024, 12:3097.1 97.1%
13 Feb 2024, 12:3999 99%
23 Jan 2024, 10:0096.8 96.8%
15 Dec 2023, 12:5496.6 96.6%
1 Nov 2023, 11:1595.1 95.1%
4 Oct 2023, 13:0897.3 97.3%

Dissolved oxygen

as O2 · code 9924 · mg/l

7.35 mg/l

Sampled 14 Aug 2026, 48 days ago · 18 results banked

681012mg/l2024202520264 Oct 2023, 13:08: 10 mg/l1 Nov 2023, 11:15: 10.2 mg/l15 Dec 2023, 12:54: 11.1 mg/l23 Jan 2024, 10:00: 11.6 mg/l13 Feb 2024, 12:39: 11.6 mg/l4 Mar 2024, 12:30: 11.8 mg/l5 Jun 2024, 14:45: 10.5 mg/l3 Jul 2024, 10:14: 9.45 mg/l2 Aug 2024, 14:12: 9.38 mg/l4 Sep 2024, 12:55: 8.99 mg/l8 Oct 2024, 12:45: 10.1 mg/l4 Nov 2024, 13:29: 10.6 mg/l10 Dec 2024, 10:20: 11.6 mg/l9 Apr 2026, 13:55: 10.6 mg/l6 May 2026, 10:40: 10.3 mg/l8 Jun 2026, 14:44: 9.73 mg/l14 Jul 2026, 11:25: 7.86 mg/l14 Aug 2026, 09:51: 7.35 mg/l
Every result (18)
SampledResult as publishedReads as
14 Aug 2026, 09:517.35 7.35 mg/l
14 Jul 2026, 11:257.86 7.86 mg/l
8 Jun 2026, 14:449.73 9.73 mg/l
6 May 2026, 10:4010.3 10.3 mg/l
9 Apr 2026, 13:5510.6 10.6 mg/l
10 Dec 2024, 10:2011.6 11.6 mg/l
4 Nov 2024, 13:2910.6 10.6 mg/l
8 Oct 2024, 12:4510.1 10.1 mg/l
4 Sep 2024, 12:558.99 8.99 mg/l
2 Aug 2024, 14:129.38 9.38 mg/l
3 Jul 2024, 10:149.45 9.45 mg/l
5 Jun 2024, 14:4510.5 10.5 mg/l
4 Mar 2024, 12:3011.8 11.8 mg/l
13 Feb 2024, 12:3911.6 11.6 mg/l
23 Jan 2024, 10:0011.6 11.6 mg/l
15 Dec 2023, 12:5411.1 11.1 mg/l
1 Nov 2023, 11:1510.2 10.2 mg/l
4 Oct 2023, 13:0810 10 mg/l

Water temperature

code 0076 · °C

18.6 °C

Sampled 14 Aug 2026, 48 days ago · 18 results banked

510152025°C2024202520264 Oct 2023, 13:08: 13.8 °C1 Nov 2023, 11:15: 12 °C15 Dec 2023, 12:54: 9 °C23 Jan 2024, 10:00: 7.4 °C13 Feb 2024, 12:39: 8.5 °C4 Mar 2024, 12:30: 6.8 °C5 Jun 2024, 14:45: 14.8 °C3 Jul 2024, 10:14: 15.1 °C2 Aug 2024, 14:12: 17.5 °C4 Sep 2024, 12:55: 15.6 °C8 Oct 2024, 12:45: 13.2 °C4 Nov 2024, 13:29: 11.2 °C10 Dec 2024, 10:20: 7.5 °C9 Apr 2026, 13:55: 12.8 °C6 May 2026, 10:40: 12.5 °C8 Jun 2026, 14:44: 15 °C14 Jul 2026, 11:25: 20.2 °C14 Aug 2026, 09:51: 18.6 °C
Every result (18)
SampledResult as publishedReads as
14 Aug 2026, 09:5118.6 18.6 °C
14 Jul 2026, 11:2520.2 20.2 °C
8 Jun 2026, 14:4415 15 °C
6 May 2026, 10:4012.5 12.5 °C
9 Apr 2026, 13:5512.8 12.8 °C
10 Dec 2024, 10:207.5 7.5 °C
4 Nov 2024, 13:2911.2 11.2 °C
8 Oct 2024, 12:4513.2 13.2 °C
4 Sep 2024, 12:5515.6 15.6 °C
2 Aug 2024, 14:1217.5 17.5 °C
3 Jul 2024, 10:1415.1 15.1 °C
5 Jun 2024, 14:4514.8 14.8 °C
4 Mar 2024, 12:306.8 6.8 °C
13 Feb 2024, 12:398.5 8.5 °C
23 Jan 2024, 10:007.4 7.4 °C
15 Dec 2023, 12:549 9 °C
1 Nov 2023, 11:1512 12 °C
4 Oct 2023, 13:0813.8 13.8 °C

pH

code 0061

7.59

Sampled 14 Aug 2026, 48 days ago · 18 results banked

7.27.47.67.82024202520264 Oct 2023, 13:08: 7.571 Nov 2023, 11:15: 7.2315 Dec 2023, 12:54: 7.3223 Jan 2024, 10:00: 7.3413 Feb 2024, 12:39: 7.44 Mar 2024, 12:30: 7.325 Jun 2024, 14:45: 7.723 Jul 2024, 10:14: 7.512 Aug 2024, 14:12: 7.84 Sep 2024, 12:55: 7.618 Oct 2024, 12:45: 7.224 Nov 2024, 13:29: 7.4810 Dec 2024, 10:20: 7.459 Apr 2026, 13:55: 7.656 May 2026, 10:40: 7.668 Jun 2026, 14:44: 7.3414 Jul 2026, 11:25: 7.3314 Aug 2026, 09:51: 7.59
Every result (18)
SampledResult as publishedReads as
14 Aug 2026, 09:517.59 7.59
14 Jul 2026, 11:257.33 7.33
8 Jun 2026, 14:447.34 7.34
6 May 2026, 10:407.66 7.66
9 Apr 2026, 13:557.65 7.65
10 Dec 2024, 10:207.45 7.45
4 Nov 2024, 13:297.48 7.48
8 Oct 2024, 12:457.22 7.22
4 Sep 2024, 12:557.61 7.61
2 Aug 2024, 14:127.8 7.8
3 Jul 2024, 10:147.51 7.51
5 Jun 2024, 14:457.72 7.72
4 Mar 2024, 12:307.32 7.32
13 Feb 2024, 12:397.4 7.4
23 Jan 2024, 10:007.34 7.34
15 Dec 2023, 12:547.32 7.32
1 Nov 2023, 11:157.23 7.23
4 Oct 2023, 13:087.57 7.57

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.045 mg/l

Sampled 14 Aug 2026, 48 days ago · 18 results banked

0.020.040.060.080.1mg/l2024202520264 Oct 2023, 13:08: below 0.03 mg/l (not detected above this)1 Nov 2023, 11:15: 0.04 mg/l15 Dec 2023, 12:54: below 0.03 mg/l (not detected above this)23 Jan 2024, 10:00: 0.082 mg/l13 Feb 2024, 12:39: 0.033 mg/l4 Mar 2024, 12:30: 0.038 mg/l5 Jun 2024, 14:45: below 0.03 mg/l (not detected above this)3 Jul 2024, 10:14: below 0.03 mg/l (not detected above this)2 Aug 2024, 14:12: 0.036 mg/l4 Sep 2024, 12:55: below 0.03 mg/l (not detected above this)8 Oct 2024, 12:45: 0.044 mg/l4 Nov 2024, 13:29: below 0.03 mg/l (not detected above this)10 Dec 2024, 10:20: below 0.03 mg/l (not detected above this)9 Apr 2026, 13:55: below 0.03 mg/l (not detected above this)6 May 2026, 10:40: below 0.03 mg/l (not detected above this)8 Jun 2026, 14:44: below 0.03 mg/l (not detected above this)14 Jul 2026, 11:25: below 0.03 mg/l (not detected above this)14 Aug 2026, 09:51: 0.045 mg/l
Every result (18)
SampledResult as publishedReads as
14 Aug 2026, 09:510.045 0.045 mg/l
14 Jul 2026, 11:25<0.03 below 0.03 mg/l (not detected above this)
8 Jun 2026, 14:44<0.03 below 0.03 mg/l (not detected above this)
6 May 2026, 10:40<0.03 below 0.03 mg/l (not detected above this)
9 Apr 2026, 13:55<0.03 below 0.03 mg/l (not detected above this)
10 Dec 2024, 10:20<0.03 below 0.03 mg/l (not detected above this)
4 Nov 2024, 13:29<0.03 below 0.03 mg/l (not detected above this)
8 Oct 2024, 12:450.044 0.044 mg/l
4 Sep 2024, 12:55<0.03 below 0.03 mg/l (not detected above this)
2 Aug 2024, 14:120.036 0.036 mg/l
3 Jul 2024, 10:14<0.03 below 0.03 mg/l (not detected above this)
5 Jun 2024, 14:45<0.03 below 0.03 mg/l (not detected above this)
4 Mar 2024, 12:300.038 0.038 mg/l
13 Feb 2024, 12:390.033 0.033 mg/l
23 Jan 2024, 10:000.082 0.082 mg/l
15 Dec 2023, 12:54<0.03 below 0.03 mg/l (not detected above this)
1 Nov 2023, 11:150.04 0.04 mg/l
4 Oct 2023, 13:08<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

below 0.196 mg/l (not detected above this)

Sampled 14 Aug 2026, 48 days ago · 18 results banked

0123mg/l2024202520264 Oct 2023, 13:08: 1.3 mg/l1 Nov 2023, 11:15: 1.19 mg/l15 Dec 2023, 12:54: 2.09 mg/l23 Jan 2024, 10:00: 1.49 mg/l13 Feb 2024, 12:39: 2.29 mg/l4 Mar 2024, 12:30: 1.79 mg/l5 Jun 2024, 14:45: 1.1 mg/l3 Jul 2024, 10:14: 0.866 mg/l2 Aug 2024, 14:12: 0.896 mg/l4 Sep 2024, 12:55: 0.596 mg/l8 Oct 2024, 12:45: 0.923 mg/l4 Nov 2024, 13:29: 1.2 mg/l10 Dec 2024, 10:20: 2 mg/l9 Apr 2026, 13:55: 0.956 mg/l6 May 2026, 10:40: 0.986 mg/l8 Jun 2026, 14:44: 0.925 mg/l14 Jul 2026, 11:25: 0.476 mg/l14 Aug 2026, 09:51: below 0.196 mg/l (not detected above this)
Every result (18)
SampledResult as publishedReads as
14 Aug 2026, 09:51<0.196 below 0.196 mg/l (not detected above this)
14 Jul 2026, 11:250.476 0.476 mg/l
8 Jun 2026, 14:440.925 0.925 mg/l
6 May 2026, 10:400.986 0.986 mg/l
9 Apr 2026, 13:550.956 0.956 mg/l
10 Dec 2024, 10:202 2 mg/l
4 Nov 2024, 13:291.2 1.2 mg/l
8 Oct 2024, 12:450.923 0.923 mg/l
4 Sep 2024, 12:550.596 0.596 mg/l
2 Aug 2024, 14:120.896 0.896 mg/l
3 Jul 2024, 10:140.866 0.866 mg/l
5 Jun 2024, 14:451.1 1.1 mg/l
4 Mar 2024, 12:301.79 1.79 mg/l
13 Feb 2024, 12:392.29 2.29 mg/l
23 Jan 2024, 10:001.49 1.49 mg/l
15 Dec 2023, 12:542.09 2.09 mg/l
1 Nov 2023, 11:151.19 1.19 mg/l
4 Oct 2023, 13:081.3 1.3 mg/l

Phosphate

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

0.017 mg/l

Sampled 14 Aug 2026, 48 days ago · 18 results banked

00.020.040.060.080.1mg/l2024202520264 Oct 2023, 13:08: 0.04 mg/l1 Nov 2023, 11:15: 0.035 mg/l15 Dec 2023, 12:54: below 0.01 mg/l (not detected above this)23 Jan 2024, 10:00: 0.022 mg/l13 Feb 2024, 12:39: 0.022 mg/l4 Mar 2024, 12:30: 0.013 mg/l5 Jun 2024, 14:45: 0.04 mg/l3 Jul 2024, 10:14: 0.023 mg/l2 Aug 2024, 14:12: 0.043 mg/l4 Sep 2024, 12:55: 0.014 mg/l8 Oct 2024, 12:45: 0.089 mg/l4 Nov 2024, 13:29: 0.02 mg/l10 Dec 2024, 10:20: 0.013 mg/l9 Apr 2026, 13:55: 0.031 mg/l6 May 2026, 10:40: 0.041 mg/l8 Jun 2026, 14:44: 0.059 mg/l14 Jul 2026, 11:25: 0.019 mg/l14 Aug 2026, 09:51: 0.017 mg/l
Every result (18)
SampledResult as publishedReads as
14 Aug 2026, 09:510.017 0.017 mg/l
14 Jul 2026, 11:250.019 0.019 mg/l
8 Jun 2026, 14:440.059 0.059 mg/l
6 May 2026, 10:400.041 0.041 mg/l
9 Apr 2026, 13:550.031 0.031 mg/l
10 Dec 2024, 10:200.013 0.013 mg/l
4 Nov 2024, 13:290.02 0.02 mg/l
8 Oct 2024, 12:450.089 0.089 mg/l
4 Sep 2024, 12:550.014 0.014 mg/l
2 Aug 2024, 14:120.043 0.043 mg/l
3 Jul 2024, 10:140.023 0.023 mg/l
5 Jun 2024, 14:450.04 0.04 mg/l
4 Mar 2024, 12:300.013 0.013 mg/l
13 Feb 2024, 12:390.022 0.022 mg/l
23 Jan 2024, 10:000.022 0.022 mg/l
15 Dec 2023, 12:54<0.01 below 0.01 mg/l (not detected above this)
1 Nov 2023, 11:150.035 0.035 mg/l
4 Oct 2023, 13:080.04 0.04 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

262 µS/cm

Sampled 14 Aug 2026, 48 days ago · 18 results banked

100150200250300µS/cm2024202520264 Oct 2023, 13:08: 182 µS/cm1 Nov 2023, 11:15: 158 µS/cm15 Dec 2023, 12:54: 177 µS/cm23 Jan 2024, 10:00: 171 µS/cm13 Feb 2024, 12:39: 170 µS/cm4 Mar 2024, 12:30: 159 µS/cm5 Jun 2024, 14:45: 195 µS/cm3 Jul 2024, 10:14: 220 µS/cm2 Aug 2024, 14:12: 206 µS/cm4 Sep 2024, 12:55: 221 µS/cm8 Oct 2024, 12:45: 138 µS/cm4 Nov 2024, 13:29: 177 µS/cm10 Dec 2024, 10:20: 164 µS/cm9 Apr 2026, 13:55: 170 µS/cm6 May 2026, 10:40: 195 µS/cm8 Jun 2026, 14:44: 200 µS/cm14 Jul 2026, 11:25: 237 µS/cm14 Aug 2026, 09:51: 262 µS/cm
Every result (18)
SampledResult as publishedReads as
14 Aug 2026, 09:51262 262 µS/cm
14 Jul 2026, 11:25237 237 µS/cm
8 Jun 2026, 14:44200 200 µS/cm
6 May 2026, 10:40195 195 µS/cm
9 Apr 2026, 13:55170 170 µS/cm
10 Dec 2024, 10:20164 164 µS/cm
4 Nov 2024, 13:29177 177 µS/cm
8 Oct 2024, 12:45138 138 µS/cm
4 Sep 2024, 12:55221 221 µS/cm
2 Aug 2024, 14:12206 206 µS/cm
3 Jul 2024, 10:14220 220 µS/cm
5 Jun 2024, 14:45195 195 µS/cm
4 Mar 2024, 12:30159 159 µS/cm
13 Feb 2024, 12:39170 170 µS/cm
23 Jan 2024, 10:00171 171 µS/cm
15 Dec 2023, 12:54177 177 µS/cm
1 Nov 2023, 11:15158 158 µS/cm
4 Oct 2023, 13:08182 182 µS/cm

Everything measured here

12 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 12 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 18 Oct 2023 – Aug 2026 78.8% 14 Aug 2026
Oxygen, Dissolved as O2 9924 River water 18 Oct 2023 – Aug 2026 7.35 mg/l 14 Aug 2026
Temperature of Water 0076 River water 18 Oct 2023 – Aug 2026 18.6 °C 14 Aug 2026
pH 0061 River water 18 Oct 2023 – Aug 2026 7.59 14 Aug 2026
Ammoniacal Nitrogen as N 0111 River water 18 Oct 2023 – Aug 2026 0.045 mg/l 14 Aug 2026
Nitrate as N 0117 River water 18 Oct 2023 – Aug 2026 below 0.196 mg/l 14 Aug 2026
Orthophosphate, reactive as P 0180 River water 18 Oct 2023 – Aug 2026 0.017 mg/l 14 Aug 2026
Conductivity at 25 C 0077 River water 18 Oct 2023 – Aug 2026 262 µS/cm 14 Aug 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 17 Oct 2023 – Aug 2026 83 mg/l 14 Aug 2026
Ammonia un-ionised as N 0119 River water 18 Oct 2023 – Aug 2026 0.00061 mg/l 14 Aug 2026
Nitrite as N 0118 River water 18 Oct 2023 – Aug 2026 below 0.004 mg/l 14 Aug 2026
Nitrogen, Total Oxidised as N 0116 River water 18 Oct 2023 – Aug 2026 below 0.2 mg/l 14 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.