sampling point
Hawstead Trib.Hawstead Hall Br.

Description	HAWSTEAD TRIB.HAWSTEAD HALL BR.
Sampling point ID	AN-37M16
Type	Freshwater – Rivers
Status	open
Location	easting northing: 586433 259602 lat lon: 52.2031, 0.726809
Area	Cambridgeshire And Bedfordshire
Sub-Area	Ely Team Sub Area
Summary	42 samples taken between 2019 and 2014

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)
Cond @ 25C
N Oxidised
NH3 un-ion
NO FLOW/SAMP
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
pH

Displaying the twenty most recent samples. You can see all 42 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 5 Feb 2018 to 29 Mar 2019

Notation	Determinand	Units	5 Feb 2018 13:31	25 Apr 2018 10:36	30 May 2018 10:13	25 Jul 2018 11:20	28 Aug 2018 12:52	18 Oct 2018 12:05	28 Nov 2018 09:52	11 Jan 2019 09:55	14 Feb 2019 13:06	29 Mar 2019 11:17
0061	pH		8.25	8.15	8.01		8.09	7.91	7.79	7.96	8.22	8.27
0076	Temperature of Water	°C	4.2	10.5	13.4		15.1	11.4	8.2	5.5	5.7	9.4
0077	Conductivity at 25 C	μs/cm	848	849	950		1085	1320	1075	1153	977	923
0111	Ammoniacal Nitrogen as N	mg/l	0.106	0.091	< 0.03		0.036	0.036	0.106	0.043	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	13.1	11.7	11.9		4.35	5.03	4.51	17.5	23.6	14.7
0117	Nitrate as N	mg/l	13.1	11.6	11.7		4.31	4.93	4.36	17.5	23.6	14.7
0118	Nitrite as N	mg/l	0.0432	0.129	0.158		0.0428	0.105	0.146	0.0335	0.0286	0.0227
0119	Ammonia un-ionised as N	mg/l	0.00126	0.00172	< 0.0007		0.00095	0.00059	0.00105	0.00051	< 0.0004	< 0.00052
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	298	287	310		335	351	284	287	237	275
0180	Orthophosphate, reactive as P	mg/l	0.112	0.215	0.598		0.763	0.929	0.898	1.08	0.312	0.402
7668	No flow /No sample					0
9901	Oxygen, Dissolved, % Saturation	%	103.1	93	81.2		92.4	56.1	56.5	75.1	101.6	99.9
9924	Oxygen, Dissolved as O2	mg/l	13.4	10.4	8.46		9.27	6.12	6.65	9.46	12.7	11.4

Samples from 2 Nov 2016 to 18 Jan 2018

Notation	Determinand	Units	2 Nov 2016 15:33	8 Nov 2016 13:20	6 Dec 2016 11:44	16 Jan 2017 12:37	1 Feb 2017 13:47	8 Mar 2017 10:11	5 Apr 2017 12:30	14 Jun 2017 12:36	18 Jul 2017 13:59	18 Jan 2018 14:12
0061	pH		8.02	7.87	7.89	8.28	8.2	8.3	7.97	7.85	8.08	8.27
0076	Temperature of Water	°C	8.2	6	3.8	6.2	6	7.4	12.7	15.2	18.2	5.5
0077	Conductivity at 25 C	μs/cm	1255	1224	875	723	696	757	841	971	972	812
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.103	0.034	0.049	0.215	0.033	0.05	0.046	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	11.8	9.63	10	22.5	22.7	14.2	10.5	10.2	8.84	14.3
0117	Nitrate as N	mg/l	11.8	9.56	9.94	22.5	22.7	14.1	10.4	10.1	8.8	14.3
0118	Nitrite as N	mg/l	0.0497	0.0694	0.0616	0.0234	0.0271	0.06	0.0972	0.0637	0.0374	0.0134
0119	Ammonia un-ionised as N	mg/l	< 0.00048	< 0.0003	0.00093	0.00047	0.00067	0.00324	0.00069	0.00095	0.00152	< 0.00039
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	341	342	286	215	196	256	291	321	310	266
0180	Orthophosphate, reactive as P	mg/l	1.84	1.55	0.563	0.093	0.063	0.107	0.381	0.79	0.761	0.062
9901	Oxygen, Dissolved, % Saturation	%	76.8	65.1	87.4	94.9	98.2	94.6	105.5	89.9	98.7	98.1
9924	Oxygen, Dissolved as O2	mg/l	9.04	8.09	11.5	11.7	12.2	11.4	11.2	9	9.28	12.4

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sampling point Hawstead Trib.Hawstead Hall Br.

Determinands

Sampling results

Samples from 5 Feb 2018 to 29 Mar 2019

Samples from 2 Nov 2016 to 18 Jan 2018

sampling point
Hawstead Trib.Hawstead Hall Br.