Nannies Water at Road Bridge

EA name: NANNIES WATER AT ROAD BRIDGE (also listed as “NANNIES WATER @ BRIDGE ON BONEHAYNE & PURLBRIDGE ROAD”)
Environment Agency sampling point SW-70220535 · 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
15 Mar 2024, 08:442.6 years 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 8 Oct 2026 and had nothing newer.
Samples banked
6 since 30 Oct 2023 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Planned investigation (local monitoring)
Where
National Grid 322681, 94397As published, to the nearest 1 m. Open in a map
River, by its own name
Nannies Water
River, by the map
An unnamed streamPlaced by position alone (the only river line close by), 3 m from the line.
Next gauge downstream
Colyton Station Road On the River Coly · 2.5 km along the river
Why it was sampled
Planned investigation (local monitoring) (6 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

99%

Sampled 15 Mar 2024, 2.6 years ago · 6 results banked

949698100102%202420252026no sample published after Mar 202430 Oct 2023, 09:27: 98%14 Nov 2023, 09:45: 95%5 Dec 2023, 11:37: 100.6%12 Jan 2024, 12:48: 100%2 Feb 2024, 10:31: 100%15 Mar 2024, 08:44: 99%
Every result (6)
SampledResult as publishedReads as
15 Mar 2024, 08:4499 99%
2 Feb 2024, 10:31100 100%
12 Jan 2024, 12:48100 100%
5 Dec 2023, 11:37100.6 100.6%
14 Nov 2023, 09:4595 95%
30 Oct 2023, 09:2798 98%

Dissolved oxygen

as O2 · code 9924 · mg/l

11.2 mg/l

Sampled 15 Mar 2024, 2.6 years ago · 6 results banked

10.51111.51212.5mg/l202420252026no sample published after Mar 202430 Oct 2023, 09:27: 10.7 mg/l14 Nov 2023, 09:45: 10.5 mg/l5 Dec 2023, 11:37: 12 mg/l12 Jan 2024, 12:48: 12.5 mg/l2 Feb 2024, 10:31: 12.1 mg/l15 Mar 2024, 08:44: 11.2 mg/l
Every result (6)
SampledResult as publishedReads as
15 Mar 2024, 08:4411.2 11.2 mg/l
2 Feb 2024, 10:3112.1 12.1 mg/l
12 Jan 2024, 12:4812.5 12.5 mg/l
5 Dec 2023, 11:3712 12 mg/l
14 Nov 2023, 09:4510.5 10.5 mg/l
30 Oct 2023, 09:2710.7 10.7 mg/l

Water temperature

code 0076 · °C

9.9 °C

Sampled 15 Mar 2024, 2.6 years ago · 6 results banked

4681012°C202420252026no sample published after Mar 202430 Oct 2023, 09:27: 11.4 °C14 Nov 2023, 09:45: 11 °C5 Dec 2023, 11:37: 7.8 °C12 Jan 2024, 12:48: 5.7 °C2 Feb 2024, 10:31: 7.1 °C15 Mar 2024, 08:44: 9.9 °C
Every result (6)
SampledResult as publishedReads as
15 Mar 2024, 08:449.9 9.9 °C
2 Feb 2024, 10:317.1 7.1 °C
12 Jan 2024, 12:485.7 5.7 °C
5 Dec 2023, 11:377.8 7.8 °C
14 Nov 2023, 09:4511 11 °C
30 Oct 2023, 09:2711.4 11.4 °C

pH

code 0061

7.7

Sampled 15 Mar 2024, 2.6 years ago · 6 results banked

7.47.67.88202420252026no sample published after Mar 202430 Oct 2023, 09:27: 7.614 Nov 2023, 09:45: 7.55 Dec 2023, 11:37: 7.5412 Jan 2024, 12:48: 7.772 Feb 2024, 10:31: 7.9515 Mar 2024, 08:44: 7.7
Every result (6)
SampledResult as publishedReads as
15 Mar 2024, 08:447.7 7.7
2 Feb 2024, 10:317.95 7.95
12 Jan 2024, 12:487.77 7.77
5 Dec 2023, 11:377.54 7.54
14 Nov 2023, 09:457.5 7.5
30 Oct 2023, 09:277.6 7.6

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.11 mg/l

Sampled 15 Mar 2024, 2.6 years ago · 6 results banked

0.020.040.060.080.10.12mg/l202420252026no sample published after Mar 202430 Oct 2023, 09:27: below 0.03 mg/l (not detected above this)14 Nov 2023, 09:45: 0.038 mg/l5 Dec 2023, 11:37: 0.046 mg/l12 Jan 2024, 12:48: below 0.03 mg/l (not detected above this)2 Feb 2024, 10:31: below 0.03 mg/l (not detected above this)15 Mar 2024, 08:44: 0.11 mg/l
Every result (6)
SampledResult as publishedReads as
15 Mar 2024, 08:440.11 0.11 mg/l
2 Feb 2024, 10:31<0.03 below 0.03 mg/l (not detected above this)
12 Jan 2024, 12:48<0.03 below 0.03 mg/l (not detected above this)
5 Dec 2023, 11:370.046 0.046 mg/l
14 Nov 2023, 09:450.038 0.038 mg/l
30 Oct 2023, 09:27<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

1.68 mg/l

Sampled 15 Mar 2024, 2.6 years ago · 6 results banked

1.61.822.22.4mg/l202420252026no sample published after Mar 202430 Oct 2023, 09:27: 2.09 mg/l14 Nov 2023, 09:45: 1.79 mg/l5 Dec 2023, 11:37: 2.09 mg/l12 Jan 2024, 12:48: 2.19 mg/l2 Feb 2024, 10:31: 2.29 mg/l15 Mar 2024, 08:44: 1.68 mg/l
Every result (6)
SampledResult as publishedReads as
15 Mar 2024, 08:441.68 1.68 mg/l
2 Feb 2024, 10:312.29 2.29 mg/l
12 Jan 2024, 12:482.19 2.19 mg/l
5 Dec 2023, 11:372.09 2.09 mg/l
14 Nov 2023, 09:451.79 1.79 mg/l
30 Oct 2023, 09:272.09 2.09 mg/l

Phosphate

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

0.084 mg/l

Sampled 15 Mar 2024, 2.6 years ago · 6 results banked

0.020.040.060.080.1mg/l202420252026no sample published after Mar 202430 Oct 2023, 09:27: 0.055 mg/l14 Nov 2023, 09:45: 0.052 mg/l5 Dec 2023, 11:37: 0.064 mg/l12 Jan 2024, 12:48: 0.037 mg/l2 Feb 2024, 10:31: 0.035 mg/l15 Mar 2024, 08:44: 0.084 mg/l
Every result (6)
SampledResult as publishedReads as
15 Mar 2024, 08:440.084 0.084 mg/l
2 Feb 2024, 10:310.035 0.035 mg/l
12 Jan 2024, 12:480.037 0.037 mg/l
5 Dec 2023, 11:370.064 0.064 mg/l
14 Nov 2023, 09:450.052 0.052 mg/l
30 Oct 2023, 09:270.055 0.055 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

226 µS/cm

Sampled 15 Mar 2024, 2.6 years ago · 6 results banked

200220240260280300µS/cm202420252026no sample published after Mar 202430 Oct 2023, 09:27: 233 µS/cm14 Nov 2023, 09:45: 233 µS/cm5 Dec 2023, 11:37: 217 µS/cm12 Jan 2024, 12:48: 273 µS/cm2 Feb 2024, 10:31: 287 µS/cm15 Mar 2024, 08:44: 226 µS/cm
Every result (6)
SampledResult as publishedReads as
15 Mar 2024, 08:44226 226 µS/cm
2 Feb 2024, 10:31287 287 µS/cm
12 Jan 2024, 12:48273 273 µS/cm
5 Dec 2023, 11:37217 217 µS/cm
14 Nov 2023, 09:45233 233 µS/cm
30 Oct 2023, 09:27233 233 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 6 Oct 2023 – Mar 2024 99% 15 Mar 2024
Oxygen, Dissolved as O2 9924 River water 6 Oct 2023 – Mar 2024 11.2 mg/l 15 Mar 2024
Temperature of Water 0076 River water 6 Oct 2023 – Mar 2024 9.9 °C 15 Mar 2024
pH 0061 River water 6 Oct 2023 – Mar 2024 7.7 15 Mar 2024
Ammoniacal Nitrogen as N 0111 River water 6 Oct 2023 – Mar 2024 0.11 mg/l 15 Mar 2024
Nitrate as N 0117 River water 6 Oct 2023 – Mar 2024 1.68 mg/l 15 Mar 2024
Orthophosphate, reactive as P 0180 River water 6 Oct 2023 – Mar 2024 0.084 mg/l 15 Mar 2024
Conductivity at 25 C 0077 River water 6 Oct 2023 – Mar 2024 226 µS/cm 15 Mar 2024
Alkalinity to pH 4.5 as CaCO3 0162 River water 6 Oct 2023 – Mar 2024 60 mg/l 15 Mar 2024
Ammonia un-ionised as N 0119 River water 6 Oct 2023 – Mar 2024 0.00101 mg/l 15 Mar 2024
Nitrite as N 0118 River water 6 Oct 2023 – Mar 2024 0.016 mg/l 15 Mar 2024
Nitrogen, Total Oxidised as N 0116 River water 6 Oct 2023 – Mar 2024 1.7 mg/l 15 Mar 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.