sampling point
Small Lee Above Turkey Brook

Description	SMALL LEE ABOVE TURKEY BROOK
Sampling point ID	TH-PLER0207
Type	Freshwater – Unspecified
Status	open
Location	easting northing: 536847 198345 lat lon: 51.667218, -0.022612
Area	Hertfordshire And North London
Sub-Area	L&W Herts & North London
Summary	67 samples taken between 2024 and 2013

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.

15 determinands have been measured at this site

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

Displaying the twenty most recent samples. You can see all 67 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 20 Nov 2019 to 15 Jul 2024

Notation	Determinand	Units	20 Nov 2019 14:03	12 Dec 2019 12:48	13 Jan 2020 12:01	17 Feb 2020 11:57	4 Mar 2020 13:22	24 May 2021 14:59	11 Jun 2021 13:52	28 Jul 2021 13:56	18 Jun 2024 14:26	15 Jul 2024 11:05
0061	pH		7.77	7.71	7.8	8.04	7.78	8.32	7.87	7.73	7.84	7.72
0076	Temperature of Water	°C	6	6	7.8	7.3	6.8	12	18.7	17	16.7	16
0077	Conductivity at 25 C	μs/cm	854	989	726	550	659	543	849	756	911	793
0085	BOD : 5 Day ATU	mg/l									1.1	< 3
0111	Ammoniacal Nitrogen as N	mg/l	0.245	0.26	0.2	0.076	0.23	0.11	0.14	0.097	0.26	0.15
0116	Nitrogen, Total Oxidised as N	mg/l	4.73	4.2	3.5	4	3.7	4.4	6	4.5	4.9	2.8
0117	Nitrate as N	mg/l	4.66	4.13	3.45	3.98	3.67	4.36	5.79	4.44	4.77	2.74
0118	Nitrite as N	mg/l	0.0695	0.069	0.047	0.017	0.026	0.043	0.21	0.06	0.13	0.059
0119	Ammonia un-ionised as N	mg/l	0.00197	0.00183	0.00197	0.00114	0.00201	0.00232	0.0036	0.0016	0.00539	0.00225
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	237	210	200	140	190	130	240	200	240	240
0180	Orthophosphate, reactive as P	mg/l	0.262	0.23	0.2	0.12	0.16	0.19	0.3	0.28	0.2	0.26
9901	Oxygen, Dissolved, % Saturation	%	78.7	73.8	84.4	92.7	93.4	91.5	81.1	76.6	88.8	71.1
9924	Oxygen, Dissolved as O2	mg/l	9.78	9.17	10	11.2	11.4	9.84	7.55	7.38	8.61	7

Samples from 8 Feb 2017 to 16 Oct 2019

Notation	Determinand	Units	8 Feb 2017 13:03	13 Mar 2017 13:13	12 Apr 2017 10:35	3 May 2017 16:10	26 Jul 2017 09:48	14 Jun 2019 12:14	25 Jul 2019 12:05	9 Aug 2019 09:15	6 Sep 2019 09:09	16 Oct 2019 11:48
0061	pH			8.07	7.86	7.84	7.72	7.75	7.84	7.65	7.5	7.75
0076	Temperature of Water	°C		11.2	11.3	11.2	16.5	13.6	22.2	18.4	13.7	13.4
0077	Conductivity at 25 C	μs/cm		858	864	886	814	612	857	848	653	794
0111	Ammoniacal Nitrogen as N	mg/l		0.085	0.206	0.058	0.087	0.186	0.09	0.26	0.085	0.15
0116	Nitrogen, Total Oxidised as N	mg/l		5.27	4.58	7.37	3.74	4.36	2.4	3.7	2.5	4.1
0117	Nitrate as N	mg/l		5.23	4.5	7.3	3.67	4.26	2.3	3.57	2.45	4.04
0118	Nitrite as N	mg/l		0.0387	0.0824	0.0682	0.0723	0.0951	0.1	0.13	0.048	0.064
0119	Ammonia un-ionised as N	mg/l		0.00169	0.00301	0.0008	0.00136	0.00251	0.00279	0.00398	0.00065	0.00199
0162	Alkalinity to pH 4.5 as CaCO3	mg/l		225	245	196	233	150	250	240	180	210
0180	Orthophosphate, reactive as P	mg/l		0.201	0.391	0.16	0.365	0.289	0.35	0.28	0.33	0.33
8944	Tributyl Tin as Cation	μg/l	< 0.0002	< 0.0002
9901	Oxygen, Dissolved, % Saturation	%		102.4	80.2	83.7	61.4	71.7	71.6	48.5	48.7	71.3
9924	Oxygen, Dissolved as O2	mg/l		11.2	8.76	9.17	5.98	7.44	6.22	4.54	5.04	7.43

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sampling point Small Lee Above Turkey Brook

Determinands

Sampling results

Samples from 20 Nov 2019 to 15 Jul 2024

Samples from 8 Feb 2017 to 16 Oct 2019

sampling point
Small Lee Above Turkey Brook