Mevagissey Stream at Car Park
EA name: MEVAGISSEY STREAM AT CAR PARK (also listed as “MEVAGISSEY STREAM AT CAR PARK MEVAGISSEY”)
Environment Agency sampling point SW-81810608 · 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
- 16 Mar 2026, 10:357 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
- 55 since 15 Jan 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 201198, 45158As published, to the nearest 1 m. Open in a map
- River, by its own name
- Mevagissey Stream
- River, by the map
- Mevagissey StreamPlaced on the river its name gives, 7 m from the line.
- Next gauge downstream
- None tracedThe map stops before any gauge.Beside Mevagissey: too close to say above or below.
- Why it was sampled
- Planned investigation (local monitoring) (54 samples)
Unplanned reactive monitoring (pollution incidents) (1 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
97.1%
Sampled 16 Mar 2026, 7 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Mar 2026, 10:35 | 97.1 | 97.1% |
| 5 Feb 2026, 10:07 | 96.5 | 96.5% |
| 21 Jan 2026, 11:45 | 97.5 | 97.5% |
| 2 Dec 2025, 10:06 | 93.9 | 93.9% |
| 7 Nov 2025, 10:18 | 93.4 | 93.4% |
| 21 Oct 2025, 10:54 | 95.1 | 95.1% |
| 9 Sep 2025, 15:20 | 94.2 | 94.2% |
| 15 Apr 2025, 14:32 | 97.7 | 97.7% |
| 7 Apr 2025, 13:05 | 97.8 | 97.8% |
| 13 Mar 2025, 11:25 | 99.1 | 99.1% |
| 25 Feb 2025, 10:15 | 97.7 | 97.7% |
| 16 Jan 2025, 09:50 | 97.6 | 97.6% |
| 10 Dec 2024, 11:44 | 99 | 99% |
| 13 Nov 2024, 11:04 | 96.8 | 96.8% |
| 29 Oct 2024, 11:17 | 96 | 96% |
| 7 Oct 2024, 10:55 | 96 | 96% |
| 25 Sep 2024, 11:13 | 95 | 95% |
| 14 Aug 2024, 10:45 | 96.1 | 96.1% |
| 18 Jul 2024, 09:56 | 97.5 | 97.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11 mg/l
Sampled 16 Mar 2026, 7 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Mar 2026, 10:35 | 11 | 11 mg/l |
| 5 Feb 2026, 10:07 | 10.8 | 10.8 mg/l |
| 21 Jan 2026, 11:45 | 11 | 11 mg/l |
| 2 Dec 2025, 10:06 | 10.6 | 10.6 mg/l |
| 7 Nov 2025, 10:18 | 9.84 | 9.84 mg/l |
| 21 Oct 2025, 10:54 | 10 | 10 mg/l |
| 9 Sep 2025, 15:20 | 9.6 | 9.6 mg/l |
| 15 Apr 2025, 14:32 | 11.2 | 11.2 mg/l |
| 7 Apr 2025, 13:05 | 10.9 | 10.9 mg/l |
| 13 Mar 2025, 11:25 | 11.9 | 11.9 mg/l |
| 25 Feb 2025, 10:15 | 11 | 11 mg/l |
| 16 Jan 2025, 09:50 | 11.2 | 11.2 mg/l |
| 10 Dec 2024, 11:44 | 11.3 | 11.3 mg/l |
| 13 Nov 2024, 11:04 | 10.9 | 10.9 mg/l |
| 29 Oct 2024, 11:17 | 10.1 | 10.1 mg/l |
| 7 Oct 2024, 10:55 | 9.91 | 9.91 mg/l |
| 25 Sep 2024, 11:13 | 9.87 | 9.87 mg/l |
| 14 Aug 2024, 10:45 | 9.54 | 9.54 mg/l |
| 18 Jul 2024, 09:56 | 9.87 | 9.87 mg/l |
Water temperature
code 0076 · °C
9.9 °C
Sampled 16 Mar 2026, 7 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Mar 2026, 10:35 | 9.9 | 9.9 °C |
| 5 Feb 2026, 10:07 | 10.1 | 10.1 °C |
| 21 Jan 2026, 11:45 | 10.1 | 10.1 °C |
| 2 Dec 2025, 10:06 | 10 | 10 °C |
| 7 Nov 2025, 10:18 | 12.9 | 12.9 °C |
| 21 Oct 2025, 10:54 | 13 | 13 °C |
| 9 Sep 2025, 15:20 | 14.4 | 14.4 °C |
| 15 Apr 2025, 14:32 | 9.4 | 9.4 °C |
| 7 Apr 2025, 13:05 | 10.6 | 10.6 °C |
| 13 Mar 2025, 11:25 | 7.3 | 7.3 °C |
| 25 Feb 2025, 10:15 | 9.9 | 9.9 °C |
| 16 Jan 2025, 09:50 | 9.2 | 9.2 °C |
| 10 Dec 2024, 11:44 | 9.3 | 9.3 °C |
| 13 Nov 2024, 11:04 | 10.1 | 10.1 °C |
| 29 Oct 2024, 11:17 | 12.8 | 12.8 °C |
| 7 Oct 2024, 10:55 | 13.8 | 13.8 °C |
| 25 Sep 2024, 11:13 | 13.5 | 13.5 °C |
| 14 Aug 2024, 10:45 | 15.6 | 15.6 °C |
| 18 Jul 2024, 09:56 | 14.7 | 14.7 °C |
pH
code 0061
7.5
Sampled 16 Mar 2026, 7 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Mar 2026, 10:35 | 7.5 | 7.5 |
| 5 Feb 2026, 10:07 | 7.38 | 7.38 |
| 21 Jan 2026, 11:45 | 7.28 | 7.28 |
| 2 Dec 2025, 10:06 | 7.2 | 7.2 |
| 7 Nov 2025, 10:18 | 7.4 | 7.4 |
| 21 Oct 2025, 10:54 | 7.23 | 7.23 |
| 9 Sep 2025, 15:20 | 7.56 | 7.56 |
| 15 Apr 2025, 14:32 | 7.41 | 7.41 |
| 7 Apr 2025, 13:05 | 7.57 | 7.57 |
| 13 Mar 2025, 11:25 | 7.59 | 7.59 |
| 25 Feb 2025, 10:15 | 7.25 | 7.25 |
| 16 Jan 2025, 09:50 | 7.55 | 7.55 |
| 10 Dec 2024, 11:44 | 7.36 | 7.36 |
| 13 Nov 2024, 11:04 | 7.53 | 7.53 |
| 29 Oct 2024, 11:17 | 7.42 | 7.42 |
| 7 Oct 2024, 10:55 | 7.31 | 7.31 |
| 25 Sep 2024, 11:13 | 7.35 | 7.35 |
| 14 Aug 2024, 10:45 | 7.63 | 7.63 |
| 18 Jul 2024, 09:56 | 7.85 | 7.85 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 16 Mar 2026, 7 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Mar 2026, 10:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2026, 10:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jan 2026, 11:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Dec 2025, 10:06 | 0.032 | 0.032 mg/l |
| 7 Nov 2025, 10:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Oct 2025, 10:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Sep 2025, 15:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Apr 2025, 14:32 | 0.044 | 0.044 mg/l |
| 7 Apr 2025, 13:05 | 0.034 | 0.034 mg/l |
| 13 Mar 2025, 11:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Feb 2025, 10:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jan 2025, 09:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Dec 2024, 11:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Nov 2024, 11:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Oct 2024, 11:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Oct 2024, 10:55 | 0.031 | 0.031 mg/l |
| 25 Sep 2024, 11:13 | 0.074 | 0.074 mg/l |
| 14 Aug 2024, 10:45 | 0.033 | 0.033 mg/l |
| 18 Jul 2024, 09:56 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
5.7 mg/l
Sampled 16 Mar 2026, 7 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Mar 2026, 10:35 | 5.7 | 5.7 mg/l |
| 5 Feb 2026, 10:07 | 5.9 | 5.9 mg/l |
| 21 Jan 2026, 11:45 | 5.2 | 5.2 mg/l |
| 2 Dec 2025, 10:06 | 6.3 | 6.3 mg/l |
| 7 Nov 2025, 10:18 | 4.9 | 4.9 mg/l |
| 21 Oct 2025, 10:54 | 2.7 | 2.7 mg/l |
| 9 Sep 2025, 15:20 | 2.9 | 2.9 mg/l |
| 15 Apr 2025, 14:32 | 2.69 | 2.69 mg/l |
| 7 Apr 2025, 13:05 | 4.99 | 4.99 mg/l |
| 13 Mar 2025, 11:25 | 5.6 | 5.6 mg/l |
| 25 Feb 2025, 10:15 | 4.8 | 4.8 mg/l |
| 16 Jan 2025, 09:50 | 5.8 | 5.8 mg/l |
| 10 Dec 2024, 11:44 | 5.9 | 5.9 mg/l |
| 13 Nov 2024, 11:04 | 5.19 | 5.19 mg/l |
| 29 Oct 2024, 11:17 | 5.6 | 5.6 mg/l |
| 7 Oct 2024, 10:55 | 3.8 | 3.8 mg/l |
| 25 Sep 2024, 11:13 | 3.19 | 3.19 mg/l |
| 14 Aug 2024, 10:45 | 4.19 | 4.19 mg/l |
| 18 Jul 2024, 09:56 | 5.29 | 5.29 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.016 mg/l
Sampled 16 Mar 2026, 7 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Mar 2026, 10:35 | 0.016 | 0.016 mg/l |
| 5 Feb 2026, 10:07 | 0.014 | 0.014 mg/l |
| 21 Jan 2026, 11:45 | 0.016 | 0.016 mg/l |
| 2 Dec 2025, 10:06 | 0.025 | 0.025 mg/l |
| 7 Nov 2025, 10:18 | 0.016 | 0.016 mg/l |
| 21 Oct 2025, 10:54 | 0.019 | 0.019 mg/l |
| 9 Sep 2025, 15:20 | 0.026 | 0.026 mg/l |
| 15 Apr 2025, 14:32 | 0.017 | 0.017 mg/l |
| 7 Apr 2025, 13:05 | 0.011 | 0.011 mg/l |
| 13 Mar 2025, 11:25 | 0.013 | 0.013 mg/l |
| 25 Feb 2025, 10:15 | 0.014 | 0.014 mg/l |
| 16 Jan 2025, 09:50 | 0.013 | 0.013 mg/l |
| 10 Dec 2024, 11:44 | 0.011 | 0.011 mg/l |
| 13 Nov 2024, 11:04 | 0.014 | 0.014 mg/l |
| 29 Oct 2024, 11:17 | 0.011 | 0.011 mg/l |
| 7 Oct 2024, 10:55 | 0.025 | 0.025 mg/l |
| 25 Sep 2024, 11:13 | 0.048 | 0.048 mg/l |
| 14 Aug 2024, 10:45 | 0.025 | 0.025 mg/l |
| 18 Jul 2024, 09:56 | 0.021 | 0.021 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
289 µS/cm
Sampled 16 Mar 2026, 7 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Mar 2026, 10:35 | 289 | 289 µS/cm |
| 5 Feb 2026, 10:07 | 282 | 282 µS/cm |
| 21 Jan 2026, 11:45 | 268 | 268 µS/cm |
| 2 Dec 2025, 10:06 | 289 | 289 µS/cm |
| 7 Nov 2025, 10:18 | 292 | 292 µS/cm |
| 21 Oct 2025, 10:54 | 289 | 289 µS/cm |
| 9 Sep 2025, 15:20 | 278 | 278 µS/cm |
| 15 Apr 2025, 14:32 | 215 | 215 µS/cm |
| 7 Apr 2025, 13:05 | 298 | 298 µS/cm |
| 13 Mar 2025, 11:25 | 296 | 296 µS/cm |
| 25 Feb 2025, 10:15 | 268 | 268 µS/cm |
| 16 Jan 2025, 09:50 | 285 | 285 µS/cm |
| 10 Dec 2024, 11:44 | 290 | 290 µS/cm |
| 13 Nov 2024, 11:04 | 300 | 300 µS/cm |
| 29 Oct 2024, 11:17 | 289 | 289 µS/cm |
| 7 Oct 2024, 10:55 | 292 | 292 µS/cm |
| 25 Sep 2024, 11:13 | 274 | 274 µS/cm |
| 14 Aug 2024, 10:45 | 325 | 325 µS/cm |
| 18 Jul 2024, 09:56 | 346 | 346 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
520 per 100 ml
Sampled 16 Mar 2026, 7 months ago · 53 results banked
Every result (53)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Mar 2026, 10:35 | 520 | 520 per 100 ml |
| 5 Feb 2026, 10:07 | 200 | 200 per 100 ml |
| 21 Jan 2026, 11:45 | 1200 | 1200 per 100 ml |
| 2 Dec 2025, 10:06 | 580 | 580 per 100 ml |
| 7 Nov 2025, 10:18 | 1500 | 1500 per 100 ml |
| 9 Sep 2025, 15:20 | 2700 | 2700 per 100 ml |
| 4 Sep 2025, 10:15 | 980 | 980 per 100 ml |
| 19 Aug 2025, 12:38 | 290 | 290 per 100 ml |
| 8 Jul 2025, 10:15 | 1500 | 1500 per 100 ml |
| 26 Jun 2025, 11:47 | 570 | 570 per 100 ml |
| 29 May 2025, 11:35 | 400 | 400 per 100 ml |
| 15 Apr 2025, 14:32 | 8000 | 8000 per 100 ml |
| 7 Apr 2025, 13:05 | 1600 | 1600 per 100 ml |
| 13 Mar 2025, 11:25 | 120 | 120 per 100 ml |
| 25 Feb 2025, 10:15 | 370 | 370 per 100 ml |
| 29 Jan 2025, 14:20 | 780 | 780 per 100 ml |
| 29 Jan 2025, 10:52 | 660 | 660 per 100 ml |
| 16 Jan 2025, 09:50 | 250 | 250 per 100 ml |
| 10 Dec 2024, 11:44 | 310 | 310 per 100 ml |
| 13 Nov 2024, 11:04 | 230 | 230 per 100 ml |
| 29 Oct 2024, 11:17 | 99 | 99 per 100 ml |
| 7 Oct 2024, 10:55 | 1500 | 1500 per 100 ml |
| 25 Sep 2024, 11:13 | 16000 | 16000 per 100 ml |
| 20 Sep 2024, 11:08 | 2100 | 2100 per 100 ml |
| 10 Sep 2024, 11:10 | 1700 | 1700 per 100 ml |
| 3 Sep 2024, 11:20 | 1500 | 1500 per 100 ml |
| 26 Aug 2024, 10:48 | 490 | 490 per 100 ml |
| 23 Aug 2024, 13:26 | 600 | 600 per 100 ml |
| 14 Aug 2024, 10:45 | 360 | 360 per 100 ml |
| 13 Aug 2024, 11:02 | 250 | 250 per 100 ml |
| 8 Aug 2024, 10:56 | 7200 | 7200 per 100 ml |
| 29 Jul 2024, 11:58 | 800 | 800 per 100 ml |
| 24 Jul 2024, 12:55 | 600 | 600 per 100 ml |
| 21 Jul 2024, 11:10 | 860 | 860 per 100 ml |
| 18 Jul 2024, 09:56 | 480 | 480 per 100 ml |
| 8 Jul 2024, 13:28 | 570 | 570 per 100 ml |
| 3 Jul 2024, 11:23 | 290 | 290 per 100 ml |
| 24 Jun 2024, 10:09 | 360 | 360 per 100 ml |
| 17 Jun 2024, 14:22 | 410 | 410 per 100 ml |
| 11 Jun 2024, 14:21 | 840 | 840 per 100 ml |
| 23 Apr 2024, 14:23 | 1100 | 1100 per 100 ml |
| 16 Apr 2024, 13:18 | 210 | 210 per 100 ml |
| 27 Mar 2024, 13:24 | 160 | 160 per 100 ml |
| 18 Mar 2024, 11:47 | 250 | 250 per 100 ml |
| 12 Mar 2024, 13:38 | 140 | 140 per 100 ml |
| 5 Mar 2024, 13:15 | 72 | 72 per 100 ml |
| 26 Feb 2024, 12:24 | 99 | 99 per 100 ml |
| 22 Feb 2024, 11:35 | 5600 | 5600 per 100 ml |
| 15 Feb 2024, 13:21 | 330 | 330 per 100 ml |
| 7 Feb 2024, 12:47 | 1000 | 1000 per 100 ml |
| 29 Jan 2024, 13:44 | 380 | 380 per 100 ml |
| 24 Jan 2024, 14:21 | 150 | 150 per 100 ml |
| 15 Jan 2024, 12:59 | 350 | 350 per 100 ml |
Everything measured here
26 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 26 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 19 | Jul 2024 – Mar 2026 | 97.1% 16 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 19 | Jul 2024 – Mar 2026 | 11 mg/l 16 Mar 2026 |
| Temperature of Water 0076 | River water | 19 | Jul 2024 – Mar 2026 | 9.9 °C 16 Mar 2026 |
| pH 0061 | River water | 19 | Jul 2024 – Mar 2026 | 7.5 16 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 19 | Jul 2024 – Mar 2026 | below 0.03 mg/l 16 Mar 2026 |
| Nitrate as N 0117 | River water | 19 | Jul 2024 – Mar 2026 | 5.7 mg/l 16 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Jul 2024 – Mar 2026 | 0.016 mg/l 16 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 19 | Jul 2024 – Mar 2026 | 289 µS/cm 16 Mar 2026 |
| Escherichia coli : Confirmed : MF 2348 | River water | 53 | Jan 2024 – Mar 2026 | 520 per 100 ml 16 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 18 | Jul 2024 – Mar 2026 | 51 mg/l 16 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 19 | Jul 2024 – Mar 2026 | below 0.00017 mg/l 16 Mar 2026 |
| Bacteroides HF183 primer 5886 | River water | 1 | Apr 2025 – Apr 2025 | Present / 100ml 15 Apr 2025 |
| Bacteroidetes Marker : Human copy number 3820 | River water | 1 | Apr 2025 – Apr 2025 | 5.9 log (10) gene copies / 100ml 15 Apr 2025 |
| Bacteroidetes Marker : Ruminant 4906 | River water | 1 | Apr 2025 – Apr 2025 | Present 15 Apr 2025 |
| Bacteroidetes Marker : Ruminant copy number 3819 | River water | 1 | Apr 2025 – Apr 2025 | 6.4 log (10) gene copies / 100ml 15 Apr 2025 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 28 | Jan 2024 – Sep 2024 | 660 colony forming units / 100ml 20 Sep 2024 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 53 | Jan 2024 – Mar 2026 | 99 colony forming units / 100ml 16 Mar 2026 |
| Microbial Source Tracking 4876 | River water | 1 | Apr 2025 – Apr 2025 | 1 text result 15 Apr 2025 |
| MST Filtration 4926 | River water | 55 | Jan 2024 – Mar 2026 | DNA Stored 16 Mar 2026 |
| Nitrite as N 0118 | River water | 19 | Jul 2024 – Mar 2026 | below 0.004 mg/l 16 Mar 2026 |
| Nitrogen, Total as N 9686 | River water | 18 | Jul 2024 – Mar 2026 | 5.6 mg/l 16 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 19 | Jul 2024 – Mar 2026 | 5.7 mg/l 16 Mar 2026 |
| Phosphorus, Total as P 0348 | River water | 18 | Jul 2024 – Mar 2026 | 0.02 mg/l 16 Mar 2026 |
| Preparation: DNA 5923 | River water | 1 | Apr 2025 – Apr 2025 | Done 15 Apr 2025 |
| Solids, Suspended at 105 C 0135 | River water | 19 | Jul 2024 – Mar 2026 | 5.6 mg/l 16 Mar 2026 |
| Volume of Sample Filtered 4865 | River water | 55 | Jan 2024 – Mar 2026 | 860 millilitre 16 Mar 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.