sampling point
Thames At Sonning Weir

Description	THAMES AT SONNING WEIR
Sampling point ID	TH-PTHR0102
Type	Freshwater – Rivers
Status	closed
Location	easting northing: 475334 175895 lat lon: 51.477003, -0.916642
Area	West Thames
Sub-Area	L&W North Wt
Summary	154 samples taken between 2014 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.

33 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
CHLOR A
CHLOROPHYLL
COD as O2
Calcium - Ca
Chloride Ion
Cond @ 20C
Cond @ 25C
Copper - Cu
Cu Filtered
Hardness
Magnesium-Mg
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Oil & Grs Vs
Orthophospht
Oxygen Diss
Phenol Odour
SI-EC-F
SI-GQA
SiO2 Rv
Sld Sus@105C
Temp Water
Type of Flow
Zinc - as Zn
pH
pH in-situ

Displaying the twenty most recent samples. You can see all 154 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 19 Feb 2013 to 4 Sep 2014

Notation	Determinand	Units	19 Feb 2013 11:05	17 Apr 2013 12:39	26 Jun 2013 14:19	3 Sep 2013 16:03	19 Nov 2013 15:58	24 Jan 2014 12:11	16 Apr 2014 11:19	8 May 2014 12:04	15 Jul 2014 12:24	4 Sep 2014 15:53
0076	Temperature of Water	°C	5.6	12	17.8	20.1	7.1	6.9	11.8	13.5	19.6	17.3
0077	Conductivity at 25 C	μs/cm	629	652	684	717	679	603	652	648	660	661
0085	BOD : 5 Day ATU	mg/l	1.26	1.49	2.84	< 1	1.28	1.33	1.69	1.47	< 1	< 1
0092	Chemical Oxygen Demand :- {COD}	mg/l	14	19	18	15	67	< 10	< 10	< 10	< 10	20
0111	Ammoniacal Nitrogen as N	mg/l	0.072	< 0.03	< 0.03	< 0.03	0.035	0.072	< 0.03	< 0.03	0.031	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	6.45	6.35	5.53	5.67	7.48	6.01	6.52	5.94	6.01	6.37
0117	Nitrate as N	mg/l	6.42	6.32	5.5	5.66	7.45	5.98	6.5	5.91	5.99	6.35
0118	Nitrite as N	mg/l	0.0325	0.0256	0.0282	0.0136	0.0289	0.0313	0.0193	0.0292	0.0181	0.0169
0135	Solids, Suspended at 105 C	mg/l	13.3	9.75	16.1	7.92	8.7	16	11	12.8	5.92	5.73
0172	Chloride	mg/l	27.7	34.1	36.5	42.7	32.7	25.6	29.5	29	33.1	36.8
0180	Orthophosphate, reactive as P	mg/l	0.083	0.085	0.164	0.193	0.132	0.085	0.067	0.106	0.17	0.21
0182	Silica, reactive as SiO2	mg/l	9.08	7.54	11.6	14.6	11.2	9.89	10.2	10.9	12.1	12.4
7887	Chlorophyll : Acetone Extract	μg/l	2.4	21.1	77.1	5.6	2.7	2.2	35	19.7	6.5	5.6
9901	Oxygen, Dissolved, % Saturation	%	107	88.8	98.6	76.5	88.2	97.5	93	80.5	81.8	72.9
9924	Oxygen, Dissolved as O2	mg/l	13.4	9.55	9.35	6.92	10.7	11.8	10	8.37	7.48	6.98

Samples from 16 Aug 2011 to 17 Jan 2013

Notation	Determinand	Units	16 Aug 2011 12:00	19 Oct 2011 12:50	2 Dec 2011 09:15	10 Feb 2012 12:05	13 Apr 2012 12:10	4 May 2012 10:57	12 Jul 2012 13:07	28 Aug 2012 16:15	7 Nov 2012 12:07	17 Jan 2013 13:50
0076	Temperature of Water	°C	18.39	12.32	7.95	2.84	11.1	10.5	16.7	18.8	7	4.3
0077	Conductivity at 25 C	μs/cm	719	759	798	802	733	541.7	614	673	541	656
0085	BOD : 5 Day ATU	mg/l	< 1	< 1	< 1	1.1	3.2	2.4	1.3	1.2	2.2	1.61
0092	Chemical Oxygen Demand :- {COD}	mg/l	14	14	15	12	15	37	24	< 10	39	13
0111	Ammoniacal Nitrogen as N	mg/l	0.043	0.03	0.04	0.035	0.033	0.11	0.055	< 0.03	0.065	0.055
0116	Nitrogen, Total Oxidised as N	mg/l	4.87	5.96	7.18	7.41	5.63	4.55	3.72	5.38	5.19	6.43
0117	Nitrate as N	mg/l	4.84	5.94	7.16	7.38	5.61	4.51	3.68	5.36	5.16	6.4
0118	Nitrite as N	mg/l	0.0318	0.0174	0.0236	0.0299	0.0198	0.0392	0.038	0.0186	0.0257	0.0279
0135	Solids, Suspended at 105 C	mg/l	4.03	3.55	3.57	6.5	11.4	71	19.8	4.23	61.5	12.1
0172	Chloride	mg/l	49.5	53.9	59.1	65.7	51.2	26.8	26.8	31.7	24.6	30.4
0180	Orthophosphate, reactive as P	mg/l	0.252	0.271	0.346	0.176	0.157	0.148	0.162	0.151	0.142	0.102
0182	Silica, reactive as SiO2	mg/l	14.2	15.4	15.6	9.23	4.41	10.8	12.9	12.1	11.2	11.6
7887	Chlorophyll : Acetone Extract	μg/l	3.1	2.2	1.2	17.2	69.7	9.4	3.4	3.6	7.2	1.5
9901	Oxygen, Dissolved, % Saturation	%	95	101.9	96.2	98.7	95.2	91.2	86.3	91.3	86.2	101.3
9924	Oxygen, Dissolved as O2	mg/l	8.89	10.9	11.4	13.3	10.4	10.2	8.37	8.48	10.4	13.2

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sampling point Thames At Sonning Weir

Determinands

Sampling results

Samples from 19 Feb 2013 to 4 Sep 2014

Samples from 16 Aug 2011 to 17 Jan 2013

sampling point
Thames At Sonning Weir