sampling point
Bennetts Ditch At A418 Roadbridge

Description	BENNETTS DITCH AT A418 ROADBRIDGE
Sampling point ID	TH-PTAR0058
Type	Freshwater – Rivers
Status	open
Location	easting northing: 467450 205750 lat lon: 51.746392, -1.024411
Area	West Thames
Sub-Area	L&W North Wt
Summary	94 samples taken between 2017 and 2000

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.

19 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Chloride Ion
Cond @ 25C
N Oxidised
NH3 un-ion
NO FLOW/SAMP
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
SI-GQA
Temp Water
Type of Flow
pH
pH in-situ

Displaying the twenty most recent samples. You can see all 94 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 28 Nov 2014 to 1 Mar 2017

Notation	Determinand	Units	28 Nov 2014 13:35	7 Jan 2015 13:47	2 Jun 2015 10:07	1 Jul 2015 10:29	30 Oct 2015 09:21	5 Feb 2016 12:54	6 May 2016 15:51	18 Aug 2016 13:26	4 Nov 2016 14:09	1 Mar 2017 14:06
0061	pH		7.56	7.98	7.86	7.96	7.68	7.88	7.91		8.07	7.92
0076	Temperature of Water	°C	10	6.4	12.7	17.4	12.9	8.7	14.2		8.5	7.3
0077	Conductivity at 25 C	μs/cm	666	719	869	904	979	878	986		928	808
0111	Ammoniacal Nitrogen as N	mg/l	0.047	0.047	< 0.03	0.045	< 0.03	0.04	0.055		< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	7.69	6.3	1.58	0.76	0.28	9.26	3.6		1.06	5.62
0117	Nitrate as N	mg/l	7.65	6.28	1.57	0.747	0.276	9.22	3.56		1.04	5.6
0118	Nitrite as N	mg/l	0.0395	0.0193	0.0091	0.0126	< 0.004	0.0361	0.0385		0.016	0.0155
0119	Ammonia un-ionised as N	mg/l	0.00031	0.00063	< 0.00049	0.00129	< 0.00033	0.00051	0.00111		< 0.00049	< 0.00037
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	144	167	206	211	223	177	230		217	178
0180	Orthophosphate, reactive as P	mg/l	0.149	0.142	0.216	0.362	0.367	0.172	0.198		0.279	0.144
7668	No flow /No sample									0
9901	Oxygen, Dissolved, % Saturation	%	73.3	87	73.9	72.8	76.4	88.7	84.5		80.1	88.5
9924	Oxygen, Dissolved as O2	mg/l	8.26	10.7	7.82	6.96	8.05	10.3	8.65		9.36	10.6

Samples from 18 Apr 2007 to 11 Sep 2014

Notation	Determinand	Units	18 Apr 2007 10:35	16 May 2007 13:35	12 Jun 2007 12:00	13 Feb 2013 10:41	15 May 2013 12:44	13 Aug 2013 12:32	11 Nov 2013 14:27	27 Mar 2014 11:09	11 Jun 2014 12:13	11 Sep 2014 14:41
0061	pH		8.1	7.9	7.7	8.61	7.68	7.89	7.75	7.79	7.99	8.04
0076	Temperature of Water	°C	9.6	12.4	14.75	3.7	7.7	13.9	9.9	7.2	14.1	13.9
0077	Conductivity at 25 C	μs/cm				739	677	954	692	591	898	924
0085	BOD : 5 Day ATU	mg/l	< 1	1.9	< 3.9
0111	Ammoniacal Nitrogen as N	mg/l	0.049	0.031	0.871	0.071	0.06	0.057	< 0.03	0.066	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	6.09	7.66	3.34	6.05	2.13	1.21	3.25	0.83	2.33	1.4
0117	Nitrate as N	mg/l	6.07	7.62	3.13	6.03	2.12	1.2	3.24	0.816	2.31	1.4
0118	Nitrite as N	mg/l	0.0237	0.0424	0.211	0.0187	0.0129	0.011	0.0096	0.014	0.0155	0.004
0119	Ammonia un-ionised as N	mg/l	0.00087	0.00054	0.0114	0.00081	0.00045	0.00108	< 0.00031	0.00061	< 0.00072	< 0.00073
0162	Alkalinity to pH 4.5 as CaCO3	mg/l				195	159	210	143	157	219	207
0180	Orthophosphate, reactive as P	mg/l	0.239	0.194	1.37	0.18	0.177	0.357	0.142	0.095	0.265	0.275
3267	Type of flow as description		3	3	3
9901	Oxygen, Dissolved, % Saturation	%	96.3	93.4	69.6	83	82	78.2	71.2	82.1	91.6	79.4
9924	Oxygen, Dissolved as O2	mg/l	11	9.95	7.04	11	9.77	8.06	8.04	9.9	9.4	8.18

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sampling point Bennetts Ditch At A418 Roadbridge

Determinands

Sampling results

Samples from 28 Nov 2014 to 1 Mar 2017

Samples from 18 Apr 2007 to 11 Sep 2014

sampling point
Bennetts Ditch At A418 Roadbridge