sampling point
Downstream Sewards Bridge Eqsd

Description	DOWNSTREAM OF SEWARDS BRIDGE EQSD, NEW ALRESFORD, HAMPSHIRE
Sampling point ID	SO-G0006490
Type	Freshwater – Unspecified
Status	open
Location	easting northing: 457248 132324 lat lon: 51.087379, -1.184
Area	Solent And South Downs
Sub-Area	L&W West Ssd
Summary	82 samples taken between 2024 and 2012

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.

23 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
C - Org Filt
CHLOROPHYLL
Calcium - Ca
Cond @ 25C
Hardness
Magnesium-Mg
Malathion
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Sld Sus@105C
Temp Water
TurbidityNTU
Zinc - as Zn
Zn- Filtered
pH

Displaying the twenty most recent samples. You can see all 82 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 16 Oct 2023 to 19 Jul 2024

Notation	Determinand	Units	16 Oct 2023 12:04	24 Nov 2023 13:00	1 Dec 2023 11:46	15 Jan 2024 12:12	21 Feb 2024 08:16	19 Mar 2024 09:54	24 Apr 2024 16:53	13 May 2024 11:02	18 Jun 2024 12:13	19 Jul 2024 15:33
0061	pH		7.77	7.75	7.75	7.97	7.74	7.9	8.02	7.87	8.07	7.83
0076	Temperature of Water	°C	9.2	9.9	7.5	7.8	9.8	10.4	11.5	12	13.4	16.6
0077	Conductivity at 25 C	μs/cm	611	606	610	609	604	612	603	609	611	602
0085	BOD : 5 Day ATU	mg/l					< 1	< 1	1.2	1.1	< 1	< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	7.2	7.4	7.8	7.7	7.7	7.3	7.7	7.4	7.4	7.6
0117	Nitrate as N	mg/l	7.19	7.39	7.8	7.7	7.7	7.3	7.69	7.39	7.39	7.59
0118	Nitrite as N	mg/l	0.0081	0.0053	0.0047	0.0046	< 0.004	0.005	0.0078	0.0088	0.0082	0.011
0119	Ammonia un-ionised as N	mg/l	< 0.00031	< 0.00031	< 0.00026	< 0.00044	< 0.0003	< 0.00045	< 0.00061	< 0.00047	< 0.0007	< 0.0006
0135	Solids, Suspended at 105 C	mg/l	< 3	3.6	< 3	6.6	17	4.4			4.7	< 3
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	250	260	260	270	250	270	260	260	260	250
0180	Orthophosphate, reactive as P	mg/l	0.027	0.028	0.028	0.035	0.029	0.023	0.02	0.023	0.021	0.017
6396	Turbidity	ntu	< 1	1.1	< 1	1.4	2	< 1			1.1	< 1
7887	Chlorophyll : Acetone Extract	μg/l	1.3	1.2	1.3	0.66	3.7	4			2.5	1
9901	Oxygen, Dissolved, % Saturation	%	96.5	94.2	93.3	98.2	92.9	97.6	113.4	99.6	105.9	110.3
9924	Oxygen, Dissolved as O2	mg/l	11.1	10.6	11.2	11.7	10.5	10.9	12.3	10.7	11	10.7

Samples from 1 Dec 2022 to 4 Sep 2023

Notation	Determinand	Units	1 Dec 2022 12:56	24 Jan 2023 14:06	13 Feb 2023 11:15	6 Mar 2023 09:38	3 Apr 2023 10:03	16 May 2023 10:28	16 Jun 2023 12:58	19 Jul 2023 11:33	29 Aug 2023 09:54	4 Sep 2023 09:39
0061	pH		7.97	7.76	7.79	7.83	7.78	7.76	7.76	7.75	7.58	7.51
0076	Temperature of Water	°C	9.5	8.5	9.6	8.1	8.6	10.9	14.7	14.3	12.4	12.8
0077	Conductivity at 25 C	μs/cm	603	602	603	603	606	597	599	588	611	608
0085	BOD : 5 Day ATU	mg/l							< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	7.4	7.3	7.7	7.7	7.8	7.1	7.2	6.8	7.3	7.3
0117	Nitrate as N	mg/l	7.4	7.3	7.7	7.7	7.8	7.09	7.19	6.79	7.29	7.29
0118	Nitrite as N	mg/l	0.0043	< 0.004	< 0.004	< 0.004	< 0.004	0.0059	0.011	0.013	0.011	0.013
0119	Ammonia un-ionised as N	mg/l	< 0.00049	< 0.00028	< 0.00033	< 0.00032	< 0.0003	< 0.00034	< 0.00045	< 0.00043	< 0.00025	< 0.00022
0135	Solids, Suspended at 105 C	mg/l	5.8	4.6	7.1	7.6	4.9	4.4	3.1	3.6	5.7	3.1
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	290	250	260	250	260	270	250	250	250	260
0180	Orthophosphate, reactive as P	mg/l	0.031	0.038	0.022	0.02	0.02	0.013	0.015	0.011	0.019	0.017
6396	Turbidity	ntu					1.2	< 1	< 1	1.6	1.4	< 1
7887	Chlorophyll : Acetone Extract	μg/l	1.2	1.1	1.9	2.4	2	2.1		2.2	4.5	1.8
9901	Oxygen, Dissolved, % Saturation	%	97.1	98.6	103.4	101.5	101.9	104.4	109.8	103.2	95.3	92.3
9924	Oxygen, Dissolved as O2	mg/l	11.1	11.5	11.8	12	11.9	11.5	11.1	10.5	10.2	9.75

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sampling point Downstream Sewards Bridge Eqsd

Determinands

Sampling results

Samples from 16 Oct 2023 to 19 Jul 2024

Samples from 1 Dec 2022 to 4 Sep 2023

sampling point
Downstream Sewards Bridge Eqsd