sampling point
Us Combe St. Nicholas Stw

Description	US COMBE ST. NICHOLAS STW
Sampling point ID	SW-E2033500
Type	Freshwater – Rivers
Status	open
Location	easting northing: 331959 110870 lat lon: 50.893284, -2.968792
Area	Wessex
Sub-Area	West Wessex
Summary	95 samples taken between 2024 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
Ca Filtered
Calcium - Ca
Cond @ 25C
Cr- Filtered
Cu Filtered
Hardness
Hdnss Ca
Hdnss Mg
Magnesium-Mg
Malachite Gr
Mg Filtered
N Inorganic
N Oxidised
NH3 un-ion
Ni- Filtered
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
OrthophsFilt
Oxygen Diss
Pb Filtered
Phosphorus-P
Potassium- K
Temp Water
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 95 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 5 Mar 2015 to 20 Jun 2024

Notation	Determinand	Units	5 Mar 2015 12:39	11 Jun 2015 12:41	4 Sep 2015 09:58	3 Dec 2015 11:16	5 Jan 2016 10:43	5 Apr 2016 10:05	14 Jul 2016 10:48	13 Oct 2016 14:52	22 Feb 2017 11:14	20 Jun 2024 09:34
0061	pH		8.18	8.06	8.06	8.15	8.06	8.22	8.13	8.2	8.23	8.01
0076	Temperature of Water	°C	10	13	11.9	11.2	9.3	10.3	12.5	11.3	10.9	12.5
0077	Conductivity at 25 C	μs/cm	579	586	583	580	555	573	574	584	575	673
0085	BOD : 5 Day ATU	mg/l										1.5
0111	Ammoniacal Nitrogen as N	mg/l	0.045	0.154	0.076	0.048	0.111	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	6.6	6.18	6.43	6.08	6.33	6.05	6.27	6.34	6.5	5.9
0117	Nitrate as N	mg/l	6.6	6.17	6.42	6.07	6.32	6.04	6.26	6.33	6.5	5.89
0118	Nitrite as N	mg/l	0.0047	0.0125	0.0118	0.0107	0.0101	0.0055	0.0094	0.0063	< 0.004	0.011
0119	Ammonia un-ionised as N	mg/l	0.00082	0.0035	0.00159	0.00096	0.00192	< 0.00056	< 0.00066	< 0.0006	< 0.00058	< 0.00066
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	245	243	243	240	229	246	248	249	243	250
0180	Orthophosphate, reactive as P	mg/l	0.076	0.085	0.09	0.09	0.107	0.067	0.08	0.093	0.088	0.088
9901	Oxygen, Dissolved, % Saturation	%	89.7	98.5	91.3	93.5	90.3	98.9	100.5	100.5	107.2	99.8
9924	Oxygen, Dissolved as O2	mg/l	10.1	10.4	9.84	10.2	10.3	11.1	10.7	11	11.8	10.6

Samples from 14 Nov 2006 to 12 Nov 2014

Notation	Determinand	Units	14 Nov 2006 13:28	15 Dec 2006 13:40	3 Jan 2013 10:44	22 Apr 2013 11:15	30 Jul 2013 09:49	9 Oct 2013 10:06	6 Feb 2014 13:52	7 May 2014 11:50	12 Aug 2014 09:51	12 Nov 2014 11:34
0061	pH		7.94	8.13	8.05	8.09	7.97	7.91	7.99	8.07	8.01	7.9
0076	Temperature of Water	°C	11.72	10.59	10.2	10.5	13.3	12	8.8	12	12.2	11
0077	Conductivity at 25 C	μs/cm			561	553	580	596	497	570	578	514
0085	BOD : 5 Day ATU	mg/l	1.7	< 2.9
0111	Ammoniacal Nitrogen as N	mg/l	0.175	0.082	0.166	< 0.03	0.127	0.09	0.056	0.105	0.111	0.147
0116	Nitrogen, Total Oxidised as N	mg/l	6.06	6.5	6.43	6.24	6.03	6.41	5.31	6.4	6.49	5.38
0117	Nitrate as N	mg/l	6.04	6.49	6.42	6.23	6.01	6.39	5.31	6.39	6.48	5.36
0118	Nitrite as N	mg/l	0.0164	0.0116	0.0091	0.006	0.0201	0.0183	< 0.004	0.0126	0.0113	0.0164
0119	Ammonia un-ionised as N	mg/l	0.00316	0.00156	0.00307	< 0.00057	0.00276	0.00155	0.00091	0.00222	0.00238	0.0023
0162	Alkalinity to pH 4.5 as CaCO3	mg/l			245	232	240	251	208	238	241	212
0180	Orthophosphate, reactive as P	mg/l	0.1	0.095	0.108	< 0.02	0.089	0.102	0.111	0.084	0.089	0.117
0348	Phosphorus, Total as P	mg/l	0.111	0.0949
1183	Weather : Precipitation		1	1
3267	Type of flow as description		3	3
6450	Copper, Dissolved	μg/l	< 1	1.1
6455	Zinc	μg/l	< 5	< 5
9856	Orthophosphate, Filtered as P	mg/l	0.104	0.0999
9901	Oxygen, Dissolved, % Saturation	%	86.9	85.8	90.4	98.3	85.9	86.7	96.4	98	96.6	91.4
9924	Oxygen, Dissolved as O2	mg/l	9.4	9.53	10.1	10.9	8.97	9.32	11.2	10.5	10.3	10.1

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sampling point Us Combe St. Nicholas Stw

Determinands

Sampling results

Samples from 5 Mar 2015 to 20 Jun 2024

Samples from 14 Nov 2006 to 12 Nov 2014

sampling point
Us Combe St. Nicholas Stw