sampling point
Lydiard Brook Above Ray (Wilts)

Description	LYDIARD BROOK ABOVE RAY (WILTS)
Sampling point ID	TH-PUTR0251
Type	Freshwater – Rivers
Status	open
Location	easting northing: 412140 186900 lat lon: 51.580827, -1.826187
Area	West Thames
Sub-Area	L&W North Wt
Summary	135 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.

18 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
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 135 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 19 Aug 2016 to 9 Aug 2024

Notation	Determinand	Units	19 Aug 2016 12:39	4 Oct 2016 11:25	16 Nov 2016 12:08	7 Dec 2016 15:07	25 Jan 2017 10:10	14 Feb 2017 11:16	24 Mar 2017 09:52	20 Jun 2024 08:14	5 Jul 2024 11:17	9 Aug 2024 10:42
0061	pH		7.92	7.96	7.9	8.14	8.13	8.17	8.02	7.71	7.7	7.7
0076	Temperature of Water	°C	19.8	12.5	9.7	5.7	3	4.2	8.1	17	16.7	18.2
0077	Conductivity at 25 C	μs/cm	571	501	575	755	833	785	700	525	555	557
0085	BOD : 5 Day ATU	mg/l								1.4	< 6	9.2
0111	Ammoniacal Nitrogen as N	mg/l	0.108	0.152	0.062	0.098	0.046	0.042	0.051	0.15	0.072	0.065
0116	Nitrogen, Total Oxidised as N	mg/l	< 0.2	0.27	0.74	5.35	5.34	5.77	3.12	< 0.2	0.25	< 0.2
0117	Nitrate as N	mg/l	0.191	0.253	0.727	5.28	5.32	5.75	3.1	0.187	0.214	< 0.196
0118	Nitrite as N	mg/l	0.0087	0.0175	0.0135	0.0656	0.0174	0.0157	0.0182	0.013	0.036	< 0.004
0119	Ammonia un-ionised as N	mg/l	0.00336	0.00304	0.00088	0.0013	0.0005	0.0005	0.00081	0.00237	0.00109	0.0011
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	197	187	190	264	274	260	251	210	230	230
0180	Orthophosphate, reactive as P	mg/l	0.089	0.068	0.038	0.07	0.072	0.064	0.049	0.079	0.14	0.16
9901	Oxygen, Dissolved, % Saturation	%	59	56.4	76	96.7	93.1	99.6	89.9	54.3	51.4	51.9
9924	Oxygen, Dissolved as O2	mg/l	5.37	6	8.62	12.1	12.5	13	10.6	5.23	4.99	4.88

Samples from 10 Aug 2015 to 25 Jul 2016

Notation	Determinand	Units	10 Aug 2015 10:28	15 Sep 2015 14:31	27 Oct 2015 15:50	17 Nov 2015 11:04	2 Dec 2015 15:07	12 Feb 2016 11:36	21 Mar 2016 14:41	19 Apr 2016 14:44	21 Jun 2016 11:02	25 Jul 2016 10:08
0061	pH		7.87	7.92	7.63	7.88	7.95	8.12	8.31	8.51	7.99	8.13
0076	Temperature of Water	°C	17.2	16	11.7	11.9	10.3	5.5	9	11.9	16.8	19.1
0077	Conductivity at 25 C	μs/cm	577	581	571	654	709	702	757	719	492	588
0111	Ammoniacal Nitrogen as N	mg/l	0.394	0.12	0.15	0.163	0.052	0.061	< 0.03	< 0.03	0.071	0.162
0116	Nitrogen, Total Oxidised as N	mg/l	0.32	< 0.2	0.31	1.63	4.16	4.66	3.89	2.78	0.93	0.25
0117	Nitrate as N	mg/l	0.275	0.188	0.288	1.57	4.12	4.65	3.88	2.77	0.901	0.209
0118	Nitrite as N	mg/l	0.0455	0.0116	0.0221	0.0561	0.0356	0.0143	0.0121	0.0133	0.0289	0.0409
0119	Ammonia un-ionised as N	mg/l	0.00907	0.00283	0.00134	0.0026	0.00087	0.0008	< 0.00051	< 0.00063	0.00208	0.00572
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	179	177	192	219	229	259	276	269	172	209
0180	Orthophosphate, reactive as P	mg/l	0.282	0.058	0.05	0.062	0.068	0.082	0.018	< 0.01	0.053	0.139
9901	Oxygen, Dissolved, % Saturation	%	39.2	53.3	54.1	72.9	80.8	93.9	103	96.7	71.1	28.9
9924	Oxygen, Dissolved as O2	mg/l	3.76	5.25	5.86	7.86	9.04	11.8	11.9	10.4	6.88	2.67

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sampling point Lydiard Brook Above Ray (Wilts)

Determinands

Sampling results

Samples from 19 Aug 2016 to 9 Aug 2024

Samples from 10 Aug 2015 to 25 Jul 2016

sampling point
Lydiard Brook Above Ray (Wilts)