Hollocombe Water at Bridge Reeve

EA name: HOLLOCOMBE WATER AT BRIDGE REEVE
Environment Agency sampling point SW-73024202 · 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
2 Sep 2026, 14:1729 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
6 since 16 Apr 2026 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 266167, 113453As published, to the nearest 1 m. Open in a map
River, by its own name
Hollocombe Water
River, by the map
Hollocombe WaterPlaced on the river its name gives, 2 m from the line.
Next gauge downstream
Newnham Bridge On the River Taw · 5.9 km along the river
Why it was sampled
Environmental monitoring statutory (EU directives) (6 samples)

1 visit found no water to sample (recorded as “No flow”).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

96.8%

Sampled 2 Sep 2026, 29 days ago · 5 results banked

80859095100105%20242025202616 Apr 2026, 12:46: 102.9%6 May 2026, 12:03: 94.1%8 Jun 2026, 15:22: 97.7%13 Jul 2026, 09:58: 83.7%2 Sep 2026, 14:17: 96.8%
Every result (5)
SampledResult as publishedReads as
2 Sep 2026, 14:1796.8 96.8%
13 Jul 2026, 09:5883.7 83.7%
8 Jun 2026, 15:2297.7 97.7%
6 May 2026, 12:0394.1 94.1%
16 Apr 2026, 12:46102.9 102.9%

Dissolved oxygen

as O2 · code 9924 · mg/l

9.35 mg/l

Sampled 2 Sep 2026, 29 days ago · 5 results banked

789101112mg/l20242025202616 Apr 2026, 12:46: 11.1 mg/l6 May 2026, 12:03: 10.3 mg/l8 Jun 2026, 15:22: 9.93 mg/l13 Jul 2026, 09:58: 7.9 mg/l2 Sep 2026, 14:17: 9.35 mg/l
Every result (5)
SampledResult as publishedReads as
2 Sep 2026, 14:179.35 9.35 mg/l
13 Jul 2026, 09:587.9 7.9 mg/l
8 Jun 2026, 15:229.93 9.93 mg/l
6 May 2026, 12:0310.3 10.3 mg/l
16 Apr 2026, 12:4611.1 11.1 mg/l

Water temperature

code 0076 · °C

16.9 °C

Sampled 2 Sep 2026, 29 days ago · 5 results banked

1012141618°C20242025202616 Apr 2026, 12:46: 11.7 °C6 May 2026, 12:03: 11.3 °C8 Jun 2026, 15:22: 14.5 °C13 Jul 2026, 09:58: 18 °C2 Sep 2026, 14:17: 16.9 °C
Every result (5)
SampledResult as publishedReads as
2 Sep 2026, 14:1716.9 16.9 °C
13 Jul 2026, 09:5818 18 °C
8 Jun 2026, 15:2214.5 14.5 °C
6 May 2026, 12:0311.3 11.3 °C
16 Apr 2026, 12:4611.7 11.7 °C

pH

code 0061

7.86

Sampled 2 Sep 2026, 29 days ago · 5 results banked

7.657.77.757.87.857.920242025202616 Apr 2026, 12:46: 7.826 May 2026, 12:03: 7.678 Jun 2026, 15:22: 7.7613 Jul 2026, 09:58: 7.712 Sep 2026, 14:17: 7.86
Every result (5)
SampledResult as publishedReads as
2 Sep 2026, 14:177.86 7.86
13 Jul 2026, 09:587.71 7.71
8 Jun 2026, 15:227.76 7.76
6 May 2026, 12:037.67 7.67
16 Apr 2026, 12:467.82 7.82

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 2 Sep 2026, 29 days ago · 5 results banked

-0.500.51mg/l20242025202616 Apr 2026, 12:46: below 0.03 mg/l (not detected above this)6 May 2026, 12:03: below 0.03 mg/l (not detected above this)8 Jun 2026, 15:22: below 0.03 mg/l (not detected above this)13 Jul 2026, 09:58: below 0.03 mg/l (not detected above this)2 Sep 2026, 14:17: below 0.03 mg/l (not detected above this)
Every result (5)
SampledResult as publishedReads as
2 Sep 2026, 14:17<0.03 below 0.03 mg/l (not detected above this)
13 Jul 2026, 09:58<0.03 below 0.03 mg/l (not detected above this)
8 Jun 2026, 15:22<0.03 below 0.03 mg/l (not detected above this)
6 May 2026, 12:03<0.03 below 0.03 mg/l (not detected above this)
16 Apr 2026, 12:46<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

1.39 mg/l

Sampled 2 Sep 2026, 29 days ago · 5 results banked

0.50.7511.251.5mg/l20242025202616 Apr 2026, 12:46: 0.926 mg/l6 May 2026, 12:03: 1.2 mg/l8 Jun 2026, 15:22: 1.19 mg/l13 Jul 2026, 09:58: 0.566 mg/l2 Sep 2026, 14:17: 1.39 mg/l
Every result (5)
SampledResult as publishedReads as
2 Sep 2026, 14:171.39 1.39 mg/l
13 Jul 2026, 09:580.566 0.566 mg/l
8 Jun 2026, 15:221.19 1.19 mg/l
6 May 2026, 12:031.2 1.2 mg/l
16 Apr 2026, 12:460.926 0.926 mg/l

Phosphate

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

0.026 mg/l

Sampled 2 Sep 2026, 29 days ago · 5 results banked

0.020.030.040.050.06mg/l20242025202616 Apr 2026, 12:46: 0.026 mg/l6 May 2026, 12:03: 0.028 mg/l8 Jun 2026, 15:22: 0.057 mg/l13 Jul 2026, 09:58: 0.046 mg/l2 Sep 2026, 14:17: 0.026 mg/l
Every result (5)
SampledResult as publishedReads as
2 Sep 2026, 14:170.026 0.026 mg/l
13 Jul 2026, 09:580.046 0.046 mg/l
8 Jun 2026, 15:220.057 0.057 mg/l
6 May 2026, 12:030.028 0.028 mg/l
16 Apr 2026, 12:460.026 0.026 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

188 µS/cm

Sampled 2 Sep 2026, 29 days ago · 5 results banked

140160180200220240µS/cm20242025202616 Apr 2026, 12:46: 159 µS/cm6 May 2026, 12:03: 176 µS/cm8 Jun 2026, 15:22: 169 µS/cm13 Jul 2026, 09:58: 230 µS/cm2 Sep 2026, 14:17: 188 µS/cm
Every result (5)
SampledResult as publishedReads as
2 Sep 2026, 14:17188 188 µS/cm
13 Jul 2026, 09:58230 230 µS/cm
8 Jun 2026, 15:22169 169 µS/cm
6 May 2026, 12:03176 176 µS/cm
16 Apr 2026, 12:46159 159 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 5 Apr 2026 – Sep 2026 96.8% 2 Sep 2026
Oxygen, Dissolved as O2 9924 River water 5 Apr 2026 – Sep 2026 9.35 mg/l 2 Sep 2026
Temperature of Water 0076 River water 5 Apr 2026 – Sep 2026 16.9 °C 2 Sep 2026
pH 0061 River water 5 Apr 2026 – Sep 2026 7.86 2 Sep 2026
Ammoniacal Nitrogen as N 0111 River water 5 Apr 2026 – Sep 2026 below 0.03 mg/l 2 Sep 2026
Nitrate as N 0117 River water 5 Apr 2026 – Sep 2026 1.39 mg/l 2 Sep 2026
Orthophosphate, reactive as P 0180 River water 5 Apr 2026 – Sep 2026 0.026 mg/l 2 Sep 2026
Conductivity at 25 C 0077 River water 5 Apr 2026 – Sep 2026 188 µS/cm 2 Sep 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 5 Apr 2026 – Sep 2026 54 mg/l 2 Sep 2026
Ammonia un-ionised as N 0119 River water 5 Apr 2026 – Sep 2026 below 0.00066 mg/l 2 Sep 2026
Nitrite as N 0118 River water 5 Apr 2026 – Sep 2026 0.0071 mg/l 2 Sep 2026
Nitrogen, Total Oxidised as N 0116 River water 5 Apr 2026 – Sep 2026 1.4 mg/l 2 Sep 2026
No flow /No sample 7668 River water 1 Aug 2026 – Aug 2026 No flow/discharge at sampling point 7 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.