sampling point
Ash Below Widford And Wareside Stw

Description	ASH BELOW WIDFORD AND WARESIDE STW
Sampling point ID	TH-PLER0674
Type	Freshwater – Unspecified
Status	open
Location	easting northing: 541119 216069 lat lon: 51.825418, 0.046303
Area	Hertfordshire And North London
Sub-Area	L&W Herts & North London
Summary	57 samples taken between 2024 and 2017

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

Samples from 31 Aug 2022 to 3 Jul 2024

Notation	Determinand	Units	31 Aug 2022 14:08	28 Sep 2022 12:37	21 Oct 2022 15:05	28 Nov 2022 15:38	16 Dec 2022 09:50	27 Feb 2023 15:10	20 Mar 2023 15:43	30 Mar 2023 10:26	13 Jun 2024 11:57	3 Jul 2024 12:12
0061	pH		8.14	8.17	8.06	7.86	8.02	8.1	7.96	8.05	8.07	8
0076	Temperature of Water	°C	16.4	10.9	13.6	9.9	2.5	7.5	9.8	10.6	11.8	13.1
0077	Conductivity at 25 C	μs/cm	750	746	466	787	678	757	777	745	769	784
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	0.069	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l		8.1	5	11	8.4	9.1	9.5	8.3	9.3	9.9
0117	Nitrate as N	mg/l		8.09	4.99	11	8.38	9.09	9.49	8.29	9.28	9.88
0118	Nitrite as N	mg/l	0.02	0.011	0.011	0.013	0.016	0.012	0.013	0.014	0.018	0.023
0119	Ammonia un-ionised as N	mg/l	< 0.00087	< 0.00058	< 0.00071	< 0.0004	0.00072	< 0.00046	< 0.00049	< 0.00057	< 0.00062	< 0.00069
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	270	270	150	270	290	280	270	270	280	270
0180	Orthophosphate, reactive as P	mg/l	0.53	0.58	1	0.31	0.19	0.3	0.2	0.13	0.33	0.6
9901	Oxygen, Dissolved, % Saturation	%	99.7	98	85.5	88	93.1	112.3	103.7	94.5	106.5	93.4
9924	Oxygen, Dissolved as O2	mg/l	9.73	10.8	8.87	9.94	12.7	13.4	11.7	10.5	11.5	9.8

Samples from 15 Nov 2021 to 26 Jul 2022

Notation	Determinand	Units	15 Nov 2021 08:04	19 Nov 2021 08:08	17 Dec 2021 14:37	4 Jan 2022 14:43	1 Feb 2022 11:23	2 Mar 2022 12:15	19 Apr 2022 14:26	24 May 2022 13:49	21 Jun 2022 11:06	26 Jul 2022 13:49
0061	pH		7.83	7.69	7.77	7.82	7.86	8.21	8.18	7.94	8.04	8.14
0076	Temperature of Water	°C	10.3	9	9.9	7.9	8.2	6.9	11.3	13.8	14	16.8
0077	Conductivity at 25 C	μs/cm	748	740	784	790	777	660	768	774	740	742
0111	Ammoniacal Nitrogen as N	mg/l	0.03	< 0.03	0.03	< 0.03	< 0.03	0.22	< 0.03	0.052	0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	7.5	7.6	9.1	12	9.6	11	9	9.1	7.3	7.3
0117	Nitrate as N	mg/l	7.48	7.59	9.08	12	9.59	11	8.98	9.07	7.27	7.27
0118	Nitrite as N	mg/l	0.021	0.013	0.018	0.016	0.0082	0.041	0.019	0.033	0.031	0.027
0119	Ammonia un-ionised as N	mg/l	0.00038	< 0.00025	0.00032	< 0.00031	< 0.00035	0.0032	< 0.0006	0.00109	0.00073	< 0.0009
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	290	270	300	280	280	250	270	270	270	260
0180	Orthophosphate, reactive as P	mg/l	0.2	0.27	0.54	0.28	0.38	0.14	0.59	0.67	0.35	0.49
9901	Oxygen, Dissolved, % Saturation	%	78.9	81.3	81.5	92.4	98.1	97.2	127.5	105.7	97.8	103.3
9924	Oxygen, Dissolved as O2	mg/l	8.83	9.38	9.2	11	11.5	11.8	13.9	10.9	10.1	10

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sampling point Ash Below Widford And Wareside Stw

Determinands

Sampling results

Samples from 31 Aug 2022 to 3 Jul 2024

Samples from 15 Nov 2021 to 26 Jul 2022

sampling point
Ash Below Widford And Wareside Stw