River Cam Wendons Ambo Road Bridge B1052

EA name: R.CAM WENDONS AMBO RD.BR.B1052
Environment Agency sampling point AN-27M03 · 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
1 Oct 2026, 11:177 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
7 since 24 Apr 2026 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Planned investigation (national agency policy) · results completed 3 Oct 2026
Where
National Grid 552100, 235900As published, to the nearest 100 m (so up to about 70 m out). Open in a map
River, by its own name
Cam
River, by the map
River CamPlaced on the river its name gives, 41 m from the line.
Next gauge downstream
Great Chesterford On the River Cam · 8.9 km along the river
Why it was sampled
Planned investigation (national agency policy) (7 samples)

Results here were completed a median of 3 days after the sample was taken (2 to 6 days, 5 samples). 1 visit found no water to sample (recorded as “No flow”).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

80.1%

Sampled 1 Oct 2026, 7 days ago · 6 results banked

708090100110%20242025202624 Apr 2026, 11:36: 110%6 May 2026, 10:37: 90.3%22 Jun 2026, 11:21: 79.6%9 Jul 2026, 09:32: 72.9%1 Sep 2026, 10:07: 78.5%1 Oct 2026, 11:17: 80.1%
Every result (6)
SampledResult as publishedReads as
1 Oct 2026, 11:1780.1 80.1%
1 Sep 2026, 10:0778.5 78.5%
9 Jul 2026, 09:3272.9 72.9%
22 Jun 2026, 11:2179.6 79.6%
6 May 2026, 10:3790.3 90.3%
24 Apr 2026, 11:36110 110%

Dissolved oxygen

as O2 · code 9924 · mg/l

7.9 mg/l

Sampled 1 Oct 2026, 7 days ago · 6 results banked

68101214mg/l20242025202624 Apr 2026, 11:36: 12.2 mg/l6 May 2026, 10:37: 9.98 mg/l22 Jun 2026, 11:21: 7.55 mg/l9 Jul 2026, 09:32: 6.57 mg/l1 Sep 2026, 10:07: 7.68 mg/l1 Oct 2026, 11:17: 7.9 mg/l
Every result (6)
SampledResult as publishedReads as
1 Oct 2026, 11:177.9 7.9 mg/l
1 Sep 2026, 10:077.68 7.68 mg/l
9 Jul 2026, 09:326.57 6.57 mg/l
22 Jun 2026, 11:217.55 7.55 mg/l
6 May 2026, 10:379.98 9.98 mg/l
24 Apr 2026, 11:3612.2 12.2 mg/l

Water temperature

code 0076 · °C

15.9 °C

Sampled 1 Oct 2026, 7 days ago · 6 results banked

1012.51517.52022.5°C20242025202624 Apr 2026, 11:36: 10.6 °C6 May 2026, 10:37: 10.8 °C22 Jun 2026, 11:21: 17.8 °C9 Jul 2026, 09:32: 20.3 °C1 Sep 2026, 10:07: 16.3 °C1 Oct 2026, 11:17: 15.9 °C
Every result (6)
SampledResult as publishedReads as
1 Oct 2026, 11:1715.9 15.9 °C
1 Sep 2026, 10:0716.3 16.3 °C
9 Jul 2026, 09:3220.3 20.3 °C
22 Jun 2026, 11:2117.8 17.8 °C
6 May 2026, 10:3710.8 10.8 °C
24 Apr 2026, 11:3610.6 10.6 °C

pH

code 0061

7.95

Sampled 1 Oct 2026, 7 days ago · 6 results banked

7.87.988.120242025202624 Apr 2026, 11:36: 8.096 May 2026, 10:37: 7.8422 Jun 2026, 11:21: 7.959 Jul 2026, 09:32: 7.881 Sep 2026, 10:07: 7.811 Oct 2026, 11:17: 7.95
Every result (6)
SampledResult as publishedReads as
1 Oct 2026, 11:177.95 7.95
1 Sep 2026, 10:077.81 7.81
9 Jul 2026, 09:327.88 7.88
22 Jun 2026, 11:217.95 7.95
6 May 2026, 10:377.84 7.84
24 Apr 2026, 11:368.09 8.09

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 1 Oct 2026, 7 days ago · 6 results banked

00.10.20.30.4mg/l20242025202624 Apr 2026, 11:36: 0.16 mg/l6 May 2026, 10:37: 0.36 mg/l22 Jun 2026, 11:21: 0.063 mg/l9 Jul 2026, 09:32: 0.065 mg/l1 Sep 2026, 10:07: below 0.03 mg/l (not detected above this)1 Oct 2026, 11:17: below 0.03 mg/l (not detected above this)
Every result (6)
SampledResult as publishedReads as
1 Oct 2026, 11:17<0.03 below 0.03 mg/l (not detected above this)
1 Sep 2026, 10:07<0.03 below 0.03 mg/l (not detected above this)
9 Jul 2026, 09:320.065 0.065 mg/l
22 Jun 2026, 11:210.063 0.063 mg/l
6 May 2026, 10:370.36 0.36 mg/l
24 Apr 2026, 11:360.16 0.16 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

12.9 mg/l

Sampled 1 Oct 2026, 7 days ago · 6 results banked

68101214mg/l20242025202624 Apr 2026, 11:36: 6.51 mg/l6 May 2026, 10:37: 6.14 mg/l22 Jun 2026, 11:21: 6.51 mg/l9 Jul 2026, 09:32: 10.9 mg/l1 Sep 2026, 10:07: 13 mg/l1 Oct 2026, 11:17: 12.9 mg/l
Every result (6)
SampledResult as publishedReads as
1 Oct 2026, 11:1712.9 12.9 mg/l
1 Sep 2026, 10:0713 13 mg/l
9 Jul 2026, 09:3210.9 10.9 mg/l
22 Jun 2026, 11:216.51 6.51 mg/l
6 May 2026, 10:376.14 6.14 mg/l
24 Apr 2026, 11:366.51 6.51 mg/l

Phosphate

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

2.4 mg/l

Sampled 1 Oct 2026, 7 days ago · 6 results banked

00.511.522.5mg/l20242025202624 Apr 2026, 11:36: 0.44 mg/l6 May 2026, 10:37: 0.5 mg/l22 Jun 2026, 11:21: 1.1 mg/l9 Jul 2026, 09:32: 1.9 mg/l1 Sep 2026, 10:07: 0.93 mg/l1 Oct 2026, 11:17: 2.4 mg/l
Every result (6)
SampledResult as publishedReads as
1 Oct 2026, 11:172.4 2.4 mg/l
1 Sep 2026, 10:070.93 0.93 mg/l
9 Jul 2026, 09:321.9 1.9 mg/l
22 Jun 2026, 11:211.1 1.1 mg/l
6 May 2026, 10:370.5 0.5 mg/l
24 Apr 2026, 11:360.44 0.44 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

1014 µS/cm

Sampled 1 Oct 2026, 7 days ago · 6 results banked

70080090010001100µS/cm20242025202624 Apr 2026, 11:36: 799 µS/cm6 May 2026, 10:37: 803 µS/cm22 Jun 2026, 11:21: 848 µS/cm9 Jul 2026, 09:32: 955 µS/cm1 Sep 2026, 10:07: 959 µS/cm1 Oct 2026, 11:17: 1014 µS/cm
Every result (6)
SampledResult as publishedReads as
1 Oct 2026, 11:171014 1014 µS/cm
1 Sep 2026, 10:07959 959 µS/cm
9 Jul 2026, 09:32955 955 µS/cm
22 Jun 2026, 11:21848 848 µS/cm
6 May 2026, 10:37803 803 µS/cm
24 Apr 2026, 11:36799 799 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 6 Apr 2026 – Oct 2026 80.1% 1 Oct 2026
Oxygen, Dissolved as O2 9924 River water 6 Apr 2026 – Oct 2026 7.9 mg/l 1 Oct 2026
Temperature of Water 0076 River water 6 Apr 2026 – Oct 2026 15.9 °C 1 Oct 2026
pH 0061 River water 6 Apr 2026 – Oct 2026 7.95 1 Oct 2026
Ammoniacal Nitrogen as N 0111 River water 6 Apr 2026 – Oct 2026 below 0.03 mg/l 1 Oct 2026
Nitrate as N 0117 River water 6 Apr 2026 – Oct 2026 12.9 mg/l 1 Oct 2026
Orthophosphate, reactive as P 0180 River water 6 Apr 2026 – Oct 2026 2.4 mg/l 1 Oct 2026
Conductivity at 25 C 0077 River water 6 Apr 2026 – Oct 2026 1014 µS/cm 1 Oct 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 6 Apr 2026 – Oct 2026 270 mg/l 1 Oct 2026
Ammonia un-ionised as N 0119 River water 6 Apr 2026 – Oct 2026 below 0.00075 mg/l 1 Oct 2026
Nitrite as N 0118 River water 6 Apr 2026 – Oct 2026 0.07 mg/l 1 Oct 2026
Nitrogen, Total Oxidised as N 0116 River water 6 Apr 2026 – Oct 2026 13 mg/l 1 Oct 2026
No flow /No sample 7668 River water 1 Aug 2026 – Aug 2026 No flow/discharge at sampling point 6 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.