sampling point
Calverton Bk. Road Bridge Calverton

Description	CALVERTON BK. ROAD BRIDGE CALVERTON
Sampling point ID	AN-03M23
Type	Freshwater – Rivers
Status	open
Location	easting northing: 478792 239404 lat lon: 52.047431, -0.85248
Area	Cambridgeshire And Bedfordshire
Sub-Area	Brampton Team Sub Area
Summary	46 samples taken between 2021 and 2013

Determinands identify a property which can be measured on a sample or the sampling environment, together with the units in which the result of that measurement will be expressed.

13 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
pH

Displaying the twenty most recent samples. You can see all 46 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 17 Feb 2020 to 8 Dec 2021

Notation	Determinand	Units	17 Feb 2020 10:25	18 Mar 2020 09:27	6 May 2021 09:02	15 Jun 2021 10:53	8 Jul 2021 09:44	10 Aug 2021 09:57	9 Sep 2021 09:48	8 Oct 2021 11:12	3 Nov 2021 11:33	8 Dec 2021 12:58
0061	pH		7.89	8.14	7.91	7.93	7.99	7.96		7.56	8.08	8.15
0076	Temperature of Water	°C	6.1	9.3	7.6	15.7	15.6	14.6		14	6.5	4.6
0077	Conductivity at 25 C	μs/cm	407	680	886	933	930	949		797	799	793
0085	BOD : 5 Day ATU	mg/l	1.1	1.5
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.047	0.032	0.049	0.039	< 0.03	0.034	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	5.9	5.3	4	1.8	3	1.5	2.5	18	16	19
0117	Nitrate as N	mg/l	5.89	5.29	3.97	1.78	2.94	1.49	2.47	17.9	16	19
0118	Nitrite as N	mg/l	0.008	0.012	0.033	0.021	0.056	0.0058	0.035	0.15	0.043	0.02
0119	Ammonia un-ionised as N	mg/l	< 0.00032	< 0.00052	0.00059	0.00076	0.00131	0.00091		0.00031	< 0.00042	< 0.00037
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	160	240	240	290	270	290	270	180	200	170
0180	Orthophosphate, reactive as P	mg/l	0.092	0.13	0.55	0.3	0.78	0.75	0.88	0.53	0.47	0.41
9901	Oxygen, Dissolved, % Saturation	%	97.6	100.2	93.7	100.9	68.9	78.2		72.7	93.3	90.3
9924	Oxygen, Dissolved as O2	mg/l	12.1	11.5	11.2	10	6.84	7.93		7.47	11.5	11.6

Samples from 5 Dec 2016 to 16 Jan 2020

Notation	Determinand	Units	5 Dec 2016 10:41	16 Feb 2017 11:28	25 Apr 2019 10:36	23 May 2019 08:00	10 Jun 2019 09:14	22 Jul 2019 08:32	29 Oct 2019 08:53	19 Nov 2019 10:20	13 Dec 2019 08:37	16 Jan 2020 10:47
0061	pH		8.04	8.07	8.24	7.85	7.77	7.58	7.99	8.21	7.91	7.82
0076	Temperature of Water	°C	1.2	6.3	11.3	10.7	12.4	16.5	7.3	4.7	6	6.8
0077	Conductivity at 25 C	μs/cm	1013	722	1002	1036	997	967	750	701	477	511
0085	BOD : 5 Day ATU	mg/l			2.11	1.52	2.31	1.1	1.5	1.19	2	< 1
0111	Ammoniacal Nitrogen as N	mg/l	0.044	< 0.03	0.032	0.076	0.159	0.19	0.032	< 0.03	0.052	0.033
0116	Nitrogen, Total Oxidised as N	mg/l	10.3	17.5	3.04	0.84	1.35	0.37	15	10.1	6.7	6.7
0117	Nitrate as N	mg/l	10.3	17.5	3.01	0.82	1.22	0.311	15	10.1	6.69	6.69
0118	Nitrite as N	mg/l	0.0225	0.0124	0.0295	0.0203	0.129	0.059	0.034	0.0124	0.011	0.01
0119	Ammonia un-ionised as N	mg/l	0.00042	< 0.00042	0.00064	0.00104	0.00205	0.00215	0.00047	< 0.00037	0.00058	0.00032
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	227	170	253	284	240	260	180	199	130	170
0180	Orthophosphate, reactive as P	mg/l	0.637	0.118	0.502	0.796	1.09	2.4	0.21	0.153	0.12	0.1
9901	Oxygen, Dissolved, % Saturation	%	97.3	120.8	102.2	47.6	47.3	39.6	90.2	94.6	97.6	98.7
9924	Oxygen, Dissolved as O2	mg/l	13.7	14.9	11.2	5.27	5.04	3.86	10.9	12.2	12.1	12

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sampling point Calverton Bk. Road Bridge Calverton

Determinands

Sampling results

Samples from 17 Feb 2020 to 8 Dec 2021

Samples from 5 Dec 2016 to 16 Jan 2020

sampling point
Calverton Bk. Road Bridge Calverton