sampling point
L Avon D/S Michaelwood Stw

Description	LITTLE AVON D/S MICHAELWOOD STW
Sampling point ID	SW-B3130424
Type	Freshwater – Rivers
Status	closed
Location	easting northing: 369456 195191 lat lon: 51.654665, -2.442909
Area	Wessex
Sub-Area	North Wessex
Summary	122 samples taken between 2010 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.

31 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Cond @ 20C
Cond @ 25C
Cu Filtered
Hardness
Hdnss Ca
Hdnss Mg
Magnesium-Mg
Mineral Oils
N Inorganic
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Oil & Grs Vs
Orthophospht
Oxygen Diss
Phenol Odour
PhenolicOdor
Potassium- K
Sld Sus@105C
Temp Water
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 122 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 29 Mar 2010 to 23 Nov 2010

Notation	Determinand	Units	29 Mar 2010 10:50	21 Apr 2010 08:36	17 May 2010 09:21	10 Jun 2010 10:02	13 Jul 2010 08:37	5 Aug 2010 11:48	8 Sep 2010 09:50	28 Sep 2010 09:09	2 Nov 2010 08:31	23 Nov 2010 10:50
0061	pH		8.27	8.02	7.82	8.02	8.01	8.03	7.77	7.76	7.78	7.61
0076	Temperature of Water	°C	9.9	8.53	10.51	14.81	15.75	15.06	13.71	11.92	11.06	7.11
0077	Conductivity at 25 C	μs/cm	686	700
0085	BOD : 5 Day ATU	mg/l	1.3	1.2	2.3	1.4	1.1	< 1	1.7	< 1	1.2	1.1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.11	0.2	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.039
0116	Nitrogen, Total Oxidised as N	mg/l	4.55	5.59
0117	Nitrate as N	mg/l	4.53	5.57
0118	Nitrite as N	mg/l	0.0215	0.0219	0.0721	0.1	0.0138	0.0095	0.0153	0.0075	0.0157	0.0338
0119	Ammonia un-ionised as N	mg/l	< 0.00054	< 0.00049	0.00138	0.00518	< 0.00083	< 0.00079	< 0.00043	< 0.00037	< 0.00036	0.00024
0135	Solids, Suspended at 105 C	mg/l	8.65	5.15	11.3	13	11	7.73	7.17	4.88	< 3	3.4
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	247	256
0180	Orthophosphate, reactive as P	mg/l	0.157	0.178
0664	Visible oil or grease, significant trace: Present/Not found (1/0)	pres/nf	0	0	0	0	0	0	0	0	0	0
6450	Copper, Dissolved	μg/l	2.4	2.5	2.84	1.83	3.06	1.97	2.53	1.85	2.13	2.24
6455	Zinc	μg/l	10.1	16.7	10.4	9.2	7	6.76	8.4	5.9	6.8	6.5
6841	Phenolic Odour	pres/nf	0	0	0	0	0	0	0	0	0	0
9901	Oxygen, Dissolved, % Saturation	%	108.9	86.3	85.6	86.4	86.4	95.4	84.1	92.3	82.4	88.3
9924	Oxygen, Dissolved as O2	mg/l	12.3	10.1	9.53	8.73	8.55	9.58	8.7	9.94	9.05	10.7

Samples from 18 May 2009 to 3 Mar 2010

Notation	Determinand	Units	18 May 2009 11:30	23 Jun 2009 12:45	21 Jul 2009 12:10	3 Sep 2009 09:58	28 Sep 2009 12:04	4 Nov 2009 11:11	24 Nov 2009 10:31	16 Dec 2009 10:57	5 Feb 2010 10:20	3 Mar 2010 11:38
0061	pH		8.16	8.15	8.16	8.02	8.26	7.99	7.98	8.23	8.2	7.65
0076	Temperature of Water	°C	11.8	16	15.6	13.8	13.1	9.9	11	6.7	6.6	5.65
0077	Conductivity at 25 C	μs/cm	684	712	606	656	699	760	578	664	652	665
0085	BOD : 5 Day ATU	mg/l	1.4	< 1	2.6	1.8	< 1	2.4	1.9	1.9	< 1	< 1
0111	Ammoniacal Nitrogen as N	mg/l	0.069	0.038	0.049	0.134	< 0.03	0.2	0.055	0.187	0.067	0.038
0116	Nitrogen, Total Oxidised as N	mg/l	4.58	4.48	3.58	4.58	4.58	9.14	6	5.57	4.88	5.68
0117	Nitrate as N	mg/l	4.53	4.45	3.55	4.51	4.58	9.07	5.98	5.52	4.85	5.66
0118	Nitrite as N	mg/l	0.0464	0.0252	0.026	0.0666	0.0049	0.0744	0.0213	0.0534	0.0291	0.0177
0119	Ammonia un-ionised as N	mg/l	0.00144	0.00107	0.00134	0.00323	< 0.00069	0.00354	0.00103	0.00268	0.00095	0.00023
0135	Solids, Suspended at 105 C	mg/l	7.7	5.8	34.3	9.1	< 3	15.3	37.4	12.3	14.8	7.95
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	243	255	202	209	247	215	217	253	231	251
0180	Orthophosphate, reactive as P	mg/l	0.425	0.491	0.435	0.548	0.573	0.366	0.168	0.166	0.135	0.117
0664	Visible oil or grease, significant trace: Present/Not found (1/0)	pres/nf	0	0	0	0	0	0	0	0	0	0
6450	Copper, Dissolved	μg/l	3.1	2.6	3.6	3	2.2	8	5.66	3.6	3.5	1.59
6455	Zinc	μg/l	14.8	9.1	33.9	10	5.2	9.52	21.4	14.2	15.7	12.5
6841	Phenolic Odour	pres/nf	0	0	0	0	0	0	0	0	0	0
9901	Oxygen, Dissolved, % Saturation	%	93.5	92.3	96.4	85.7	94.8	84.9	94.1	95.4	92.4	99.4
9924	Oxygen, Dissolved as O2	mg/l	10.1	9.09	9.57	8.85	9.94	9.59	10.4	11.7	11.3	12.5

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sampling point L Avon D/S Michaelwood Stw

Determinands

Sampling results

Samples from 29 Mar 2010 to 23 Nov 2010

Samples from 18 May 2009 to 3 Mar 2010

sampling point
L Avon D/S Michaelwood Stw