sampling point
Ash At Easneye

Description	ASH AT EASNEYE
Sampling point ID	TH-PLER0005
Type	Freshwater – Rivers
Status	open
Location	easting northing: 537750 213330 lat lon: 51.801647, -0.003638
Area	Hertfordshire And North London
Sub-Area	L&W Herts & North London
Summary	254 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.

29 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Chloride Ion
Cond @ 20C
Cond @ 25C
Copper - Cu
Cu Filtered
Hardness
Magnesium-Mg
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Oil & Grs Vs
Orthophospht
Oxygen Diss
Phenol Odour
SI-EC-F
SI-GQA
Sld Sus@105C
Temp Water
Type of Flow
Zinc - as Zn
pH
pH in-situ

Displaying the twenty most recent samples. You can see all 254 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 2 Aug 2023 to 2 Jul 2024

Notation	Determinand	Units	2 Aug 2023 12:27	8 Sep 2023 13:41	6 Oct 2023 14:15	1 Nov 2023 12:35	1 Dec 2023 11:08	4 Jan 2024 11:38	1 Feb 2024 10:02	5 Mar 2024 12:29	4 Jun 2024 14:13	2 Jul 2024 09:56
0061	pH		7.98	7.9	7.73	7.74	7.92	7.9	7.98	7.97	8.01	7.9
0076	Temperature of Water	°C	15.1	17.1	13.9	11.2	5.5	8.3	8.1	8.8	14.3	13.2
0077	Conductivity at 25 C	μs/cm	712	738	723	726	738	698	740	748	722	724
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	7.3	7.2	6.8	9.8	9.1	9.1		8	8	7.4
0117	Nitrate as N	mg/l	7.29	7.19	6.79	9.79	9.09	9.09		7.99	7.99	7.39
0118	Nitrite as N	mg/l	0.015	0.013	0.012	0.014	0.0069	0.012	0.015	0.013	0.014	0.015
0119	Ammonia un-ionised as N	mg/l	< 0.00076	< 0.00073	< 0.0004	< 0.00033	< 0.00033	< 0.00038	< 0.00045	< 0.00047	< 0.00075	< 0.00055
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	270	270	280	270	280	260	280	280	280	280
0180	Orthophosphate, reactive as P	mg/l	0.25	0.28	0.28	0.16	0.1	0.089	0.13	0.094	0.15	0.15
9901	Oxygen, Dissolved, % Saturation	%	93.2	98	90.5	88.2	91.5	91.6	93.5	100	107.1	92.8
9924	Oxygen, Dissolved as O2	mg/l	9.35	9.43	9.32	9.66	11.5	10.8	11	11.6	10.9	9.71

Samples from 26 Oct 2022 to 3 Jul 2023

Notation	Determinand	Units	26 Oct 2022 12:38	11 Nov 2022 13:29	9 Dec 2022 14:57	25 Jan 2023 10:44	8 Feb 2023 10:13	7 Mar 2023 10:23	21 Apr 2023 15:12	2 May 2023 13:52	1 Jun 2023 13:15	3 Jul 2023 10:39
0061	pH		7.67	7.83	6.51	7.94	8.05	7.95	8.01	8.01	7.94	7.86
0076	Temperature of Water	°C	13.2	12.4	5.4	6	5.1	7	10.1	12	12.8	13.5
0077	Conductivity at 25 C	μs/cm	728	750	746	749	737	735	740	727	733	716
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	17	9.5	8.1	8	7.9	8.2	8.1	7.6	7.9	7.3
0117	Nitrate as N	mg/l	16.9	9.49	8.1	7.99	7.89	8.19	8.09	7.58	7.88	7.28
0118	Nitrite as N	mg/l	0.077	0.014	0.0043	0.0074	0.0056	0.0098	0.0073	0.018	0.016	0.017
0119	Ammonia un-ionised as N	mg/l	< 0.00033	< 0.00044	< 1.0e-05	< 0.00036	< 0.00038	< 0.00039	< 0.00055	< 0.00063	< 0.00059	< 0.00052
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	220	270	280	280	290	270	280	280	290	270
0180	Orthophosphate, reactive as P	mg/l	0.22	0.18	0.19	0.12	0.12	0.17	0.085	0.12	0.16	0.2
9901	Oxygen, Dissolved, % Saturation	%	76.2	89	93.8	94.1	96.7	99	112.4	118.8	101.9	92.2
9924	Oxygen, Dissolved as O2	mg/l	7.97	9.48	11.8	11.7	12.3	12	12.6	12.8	10.8	9.58

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sampling point Ash At Easneye

Determinands

Sampling results

Samples from 2 Aug 2023 to 2 Jul 2024

Samples from 26 Oct 2022 to 3 Jul 2023

sampling point
Ash At Easneye