sampling point
Gatwick Stream At Haworth Road

Description	GATWICK STREAM AT HAWORTH ROAD
Sampling point ID	TH-PMLR0314
Type	Freshwater – Unspecified
Status	open
Location	easting northing: 529076 136226 lat lon: 51.110799, -0.157477
Area	Kent And South London
Sub-Area	L&W South London Ksl
Summary	109 samples taken between 2024 and 2010

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.

12 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
pH

Displaying the twenty most recent samples. You can see all 109 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 5 Jul 2022 to 14 Jun 2024

Notation	Determinand	Units	5 Jul 2022 10:56	9 Aug 2022 12:49	26 Sep 2022 09:30	13 Oct 2022 08:00	4 Nov 2022 08:07	21 Dec 2022 09:42	17 Jan 2023 08:10	20 Feb 2023 09:30	14 Mar 2023 09:49	14 Jun 2024 12:57
0061	pH		7.39	7.66	7.69	7.24	7.06	7.36	7.67	7.56	7.82	8.1
0076	Temperature of Water	°C	14	16.9	12.8	12.3	10.1	6.9	4.4	7.9	7.5	12.7
0077	Conductivity at 25 C	μs/cm	246	256	176	150	172	228	194	230	248	246
0111	Ammoniacal Nitrogen as N	mg/l	0.033	0.036	0.072	< 0.03	0.032		< 0.03	0.076	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.51	0.4	0.43	0.45	2.1		1.6	1.1	1.2	0.71
0117	Nitrate as N	mg/l	0.503	0.396	0.42	0.446	2.09		1.6	1.09	1.2	0.706
0118	Nitrite as N	mg/l	0.0075	< 0.004	0.01	0.0042	0.0052		< 0.004	0.0057	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	0.0002	0.0005	0.0008	< 0.00011	7.0e-05		< 0.00017	0.00044	< 0.0003	< 0.00067
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	59	70	45	38	28		27	33	36	58
0180	Orthophosphate, reactive as P	mg/l	0.036	0.036	0.024	0.013	0.011		0.014	< 0.01	< 0.01	0.023
9901	Oxygen, Dissolved, % Saturation	%	84.7	77.1	88.3	84.5	94.6	96.5	98.8	94.9	97.3	89.8
9924	Oxygen, Dissolved as O2	mg/l	8.71	7.45	9.32	9.02	10.6	11.7	12.8	11.2	11.6	9.5

Samples from 16 Oct 2018 to 14 Jun 2022

Notation	Determinand	Units	16 Oct 2018 12:02	26 Oct 2018 09:48	30 Nov 2018 10:18	17 Dec 2018 10:20	27 Dec 2018 08:41	19 Feb 2019 11:54	20 Mar 2019 13:44	27 Apr 2022 09:17	26 May 2022 11:15	14 Jun 2022 12:33
0061	pH		7.51	7.49	7.46	7.62	7.83	7.6	7.83	7.58	7.44	7.68
0076	Temperature of Water	°C	13.9	9.9	8.6	6.3	6.2	7.2	10.2	9.2	12.6	13.8
0077	Conductivity at 25 C	μs/cm	287	278	226	213	216	223	211	226	234	251
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.13	0.045	0.094
0116	Nitrogen, Total Oxidised as N	mg/l	0.87	0.37	2.16	1.87	2.13	1.75	1.6	0.68	0.64	0.59
0117	Nitrate as N	mg/l	0.866	0.366	2.16	1.87	2.13	1.75	1.6	0.663	0.633	0.581
0118	Nitrite as N	mg/l	< 0.004	< 0.004	0.005	< 0.004	< 0.004	< 0.004	< 0.004	0.017	0.007	0.0087
0119	Ammonia un-ionised as N	mg/l	< 0.00024	< 0.00017	< 0.00014	< 0.00018	< 0.00028	< 0.00018	< 0.00038	0.00086	0.00028	0.0011
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	59	68	33	28	31	23	30	43	49	55
0180	Orthophosphate, reactive as P	mg/l	0.012	0.194	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	0.018	0.02	0.033
9901	Oxygen, Dissolved, % Saturation	%	82.2	84.1	91.2	88.3	86.4	90.6	95.5	93.9	82.5	89.4
9924	Oxygen, Dissolved as O2	mg/l	8.47	9.5	10.6	10.9	10.7	10.9	10.7	10.8	8.75	9.23

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sampling point Gatwick Stream At Haworth Road

Determinands

Sampling results

Samples from 5 Jul 2022 to 14 Jun 2024

Samples from 16 Oct 2018 to 14 Jun 2022

sampling point
Gatwick Stream At Haworth Road