Intwood Stream Intwood CH. Ford (River Yare)

EA name: INTWOOD STR. INTWOOD CH.FORD (R.YARE)
Environment Agency sampling point AN-YAR150 · 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
28 Sep 2026, 10:5910 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
5 since 15 Apr 2026 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Monitoring (national agency policy) · results completed 30 Sep 2026
Where
National Grid 619906, 304079As published, to the nearest 1 m. Open in a map
River, by its own name
Its name does not give one
River, by the map
Mulbarton ReachPlaced by position alone, on a line whose map name differs from its own, 2 m from the line.
Next gauge downstream
Brundall On the River Yare · 21 km along the river
Why it was sampled
Monitoring (national agency policy) (5 samples)

Results here were completed a median of 55 days after the sample was taken (2 to 55 days, 2 samples).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

88.9%

Sampled 28 Sep 2026, 10 days ago · 3 results banked

84868890%20242025202614 May 2026, 12:13: 87.3%3 Jun 2026, 15:21: 84.1%28 Sep 2026, 10:59: 88.9%
Every result (3)
SampledResult as publishedReads as
28 Sep 2026, 10:5988.9 88.9%
3 Jun 2026, 15:2184.1 84.1%
14 May 2026, 12:1387.3 87.3%

Dissolved oxygen

as O2 · code 9924 · mg/l

9.1 mg/l

Sampled 28 Sep 2026, 10 days ago · 3 results banked

88.599.510mg/l20242025202614 May 2026, 12:13: 9.7 mg/l3 Jun 2026, 15:21: 8.44 mg/l28 Sep 2026, 10:59: 9.1 mg/l
Every result (3)
SampledResult as publishedReads as
28 Sep 2026, 10:599.1 9.1 mg/l
3 Jun 2026, 15:218.44 8.44 mg/l
14 May 2026, 12:139.7 9.7 mg/l

Water temperature

code 0076 · °C

14.2 °C

Sampled 28 Sep 2026, 10 days ago · 4 results banked

10121416°C20242025202615 Apr 2026, 13:55: 13.3 °C14 May 2026, 12:13: 10.6 °C3 Jun 2026, 15:21: 15.1 °C28 Sep 2026, 10:59: 14.2 °C
Every result (4)
SampledResult as publishedReads as
28 Sep 2026, 10:5914.2 14.2 °C
3 Jun 2026, 15:2115.1 15.1 °C
14 May 2026, 12:1310.6 10.6 °C
15 Apr 2026, 13:5513.3 13.3 °C

pH

code 0061

7.95

Sampled 28 Sep 2026, 10 days ago · 4 results banked

7.87.857.97.9520242025202615 Apr 2026, 13:55: 7.9514 May 2026, 12:13: 7.843 Jun 2026, 15:21: 7.8528 Sep 2026, 10:59: 7.95
Every result (4)
SampledResult as publishedReads as
28 Sep 2026, 10:597.95 7.95
3 Jun 2026, 15:217.85 7.85
14 May 2026, 12:137.84 7.84
15 Apr 2026, 13:557.95 7.95

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 28 Sep 2026, 10 days ago · 5 results banked

0.020.040.060.080.1mg/l20242025202615 Apr 2026, 13:55: below 0.03 mg/l (not detected above this)14 May 2026, 12:13: below 0.03 mg/l (not detected above this)3 Jun 2026, 15:21: 0.036 mg/l9 Jul 2026, 13:45: 0.1 mg/l28 Sep 2026, 10:59: below 0.03 mg/l (not detected above this)
Every result (5)
SampledResult as publishedReads as
28 Sep 2026, 10:59<0.03 below 0.03 mg/l (not detected above this)
9 Jul 2026, 13:450.1 0.1 mg/l
3 Jun 2026, 15:210.036 0.036 mg/l
14 May 2026, 12:13<0.03 below 0.03 mg/l (not detected above this)
15 Apr 2026, 13:55<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

8.78 mg/l

Sampled 28 Sep 2026, 10 days ago · 5 results banked

6810121416mg/l20242025202615 Apr 2026, 13:55: 9.56 mg/l14 May 2026, 12:13: 7.98 mg/l3 Jun 2026, 15:21: 12.9 mg/l9 Jul 2026, 13:45: 15.9 mg/l28 Sep 2026, 10:59: 8.78 mg/l
Every result (5)
SampledResult as publishedReads as
28 Sep 2026, 10:598.78 8.78 mg/l
9 Jul 2026, 13:4515.9 15.9 mg/l
3 Jun 2026, 15:2112.9 12.9 mg/l
14 May 2026, 12:137.98 7.98 mg/l
15 Apr 2026, 13:559.56 9.56 mg/l

Phosphate

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

0.049 mg/l

Sampled 28 Sep 2026, 10 days ago · 5 results banked

0.020.030.040.050.06mg/l20242025202615 Apr 2026, 13:55: 0.025 mg/l14 May 2026, 12:13: 0.036 mg/l3 Jun 2026, 15:21: 0.047 mg/l9 Jul 2026, 13:45: 0.059 mg/l28 Sep 2026, 10:59: 0.049 mg/l
Every result (5)
SampledResult as publishedReads as
28 Sep 2026, 10:590.049 0.049 mg/l
9 Jul 2026, 13:450.059 0.059 mg/l
3 Jun 2026, 15:210.047 0.047 mg/l
14 May 2026, 12:130.036 0.036 mg/l
15 Apr 2026, 13:550.025 0.025 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

876 µS/cm

Sampled 28 Sep 2026, 10 days ago · 4 results banked

825850875900925µS/cm20242025202615 Apr 2026, 13:55: 924 µS/cm14 May 2026, 12:13: 841 µS/cm3 Jun 2026, 15:21: 909 µS/cm28 Sep 2026, 10:59: 876 µS/cm
Every result (4)
SampledResult as publishedReads as
28 Sep 2026, 10:59876 876 µS/cm
3 Jun 2026, 15:21909 909 µS/cm
14 May 2026, 12:13841 841 µS/cm
15 Apr 2026, 13:55924 924 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 3 May 2026 – Sep 2026 88.9% 28 Sep 2026
Oxygen, Dissolved as O2 9924 River water 3 May 2026 – Sep 2026 9.1 mg/l 28 Sep 2026
Temperature of Water 0076 River water 4 Apr 2026 – Sep 2026 14.2 °C 28 Sep 2026
pH 0061 River water 4 Apr 2026 – Sep 2026 7.95 28 Sep 2026
Ammoniacal Nitrogen as N 0111 River water 5 Apr 2026 – Sep 2026 below 0.03 mg/l 28 Sep 2026
Nitrate as N 0117 River water 5 Apr 2026 – Sep 2026 8.78 mg/l 28 Sep 2026
Orthophosphate, reactive as P 0180 River water 5 Apr 2026 – Sep 2026 0.049 mg/l 28 Sep 2026
Conductivity at 25 C 0077 River water 4 Apr 2026 – Sep 2026 876 µS/cm 28 Sep 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 5 Apr 2026 – Sep 2026 260 mg/l 28 Sep 2026
Ammonia un-ionised as N 0119 River water 4 Apr 2026 – Sep 2026 below 0.00066 mg/l 28 Sep 2026
Nitrite as N 0118 River water 5 Apr 2026 – Sep 2026 0.022 mg/l 28 Sep 2026
Nitrogen, Total Oxidised as N 0116 River water 5 Apr 2026 – Sep 2026 8.8 mg/l 28 Sep 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.