sampling point
Dobbs Beck Crostwick (R.Bure)

Description	DOBBS BECK CROSTWICK (R.BURE)
Sampling point ID	AN-BUR137
Type	Freshwater – Rivers
Status	open
Location	easting northing: 626800 315400 lat lon: 52.688759, 1.354407
Area	Essex Norfolk And Suffolk
Sub-Area	Norfolk & Suffolk Team Sub Area
Summary	101 samples taken between 2020 and 2004

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.

22 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
C - Org Filt
Ca Filtered
Calcium - Ca
Cond @ 25C
Fe- Filt
Hardness
Magnesium-Mg
Mg Filtered
Mn BLM Bio
Mn- Filtered
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Phosphorus-P
Temp Water
pH

Displaying the twenty most recent samples. You can see all 101 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 1 Dec 2017 to 3 Feb 2020

Notation	Determinand	Units	1 Dec 2017 09:50	10 Jan 2018 09:00	16 Apr 2018 13:33	30 Aug 2018 15:53	3 Oct 2018 09:17	1 Feb 2019 13:18	3 May 2019 12:22	27 Aug 2019 13:33	13 Nov 2019 12:33	3 Feb 2020 10:57
0061	pH		7.83	7.65	7.76	7.6	7.95	8.38	7.94	7.94	7.72	7.7
0076	Temperature of Water	°C	4.7	6	12.4	14.1	11			19.8	7.3	7.7
0077	Conductivity at 25 C	μs/cm	824	779	783	806	796			810	790	797
0235	Magnesium, Dissolved	mg/l	9.75	7.96	8	9.76	9.86	8.47	9.52	10	8.5	8.2
0239	Calcium, Dissolved	mg/l	119	108	114	119	119	114	109	120	110	120
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	2.63	3.21	4.34	2.85	2.59	3.39	3.35	2.7	3.4	3.6
6460	Iron, Dissolved	μg/l	< 30	< 30	85.1	44.7	61.6	31.3	65	< 30	48	52
9901	Oxygen, Dissolved, % Saturation	%	84.9	87.1	89	75.1	84.9			100.7	72	80.6
9924	Oxygen, Dissolved as O2	mg/l	10.9	10.8	9.48	7.7	9.34			9.17	8.66	9.6

Samples from 9 Apr 2015 to 17 Oct 2017

Notation	Determinand	Units	9 Apr 2015 09:10	2 Jul 2015 15:02	9 Oct 2015 10:19	2 Feb 2016 09:15	5 May 2016 09:55	5 Aug 2016 09:34	2 Nov 2016 10:25	17 Mar 2017 10:48	5 Jun 2017 11:45	17 Oct 2017 13:55
0061	pH		7.51	8.07	7.36	7.58	7.9	7.92	7.73	7.89	8.15	7.66
0076	Temperature of Water	°C	10.2	20.8	10.4	7.4	12.9	14.8	9	10	17.1	12.9
0077	Conductivity at 25 C	μs/cm	775	791	755	793	731	811	820	801	867	803
0111	Ammoniacal Nitrogen as N	mg/l	0.053	0.071	0.156	0.05	0.046	0.101	0.097	0.046	0.077
0116	Nitrogen, Total Oxidised as N	mg/l	4.18	4.35	3.16	4.42	3.45	3.73	4.32	3.98	3.47
0117	Nitrate as N	mg/l	4.14	4.29	3.1	4.39	3.43	3.64	4.28	3.95	3.41
0118	Nitrite as N	mg/l	0.0373	0.0624	0.0583	0.0251	0.0232	0.0858	0.0446	0.0308	0.0593
0119	Ammonia un-ionised as N	mg/l	0.00032	0.00283	0.00068	0.00029	0.00083	0.00218	0.00089	0.00065	0.00236
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	212	220	226	218	195	229	237	228	192
0180	Orthophosphate, reactive as P	mg/l	0.03	0.039	0.103	0.054	0.026	0.108	0.132	0.037	0.089
0235	Magnesium, Dissolved	mg/l									9.65	9.65
0239	Calcium, Dissolved	mg/l		115	115	112	102	114	122	121	101	120
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l		2.61	3.08	3.34	3.68	3.27	2.83	3.17	3.22	2.83
4820	Manganese : BLM Bioavailable	μg/l			8.47	9.84	23.9	33.1	14.5	27.5
6458	Manganese, Dissolved	μg/l		26.6	52.2	39.6	51.7	69	43.5	60.7
6460	Iron, Dissolved	μg/l	70	< 30	52.2	50.5	75.8	47.2	46.6	33.7	39.1	46.6
9901	Oxygen, Dissolved, % Saturation	%	89.4	98.1	70.6	85.6	104.5	79.1	61.3	89.7	100.2	76
9924	Oxygen, Dissolved as O2	mg/l	10	8.76	7.88	10.3	11	7.99	7.07	10.1	9.64	8.01

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sampling point Dobbs Beck Crostwick (R.Bure)

Determinands

Sampling results

Samples from 1 Dec 2017 to 3 Feb 2020

Samples from 9 Apr 2015 to 17 Oct 2017

sampling point
Dobbs Beck Crostwick (R.Bure)