sampling point
Treverbyn Stream At Penrose

Description	TREVERBYN STREAM AT PENROSE
Sampling point ID	SW-81610559
Type	Freshwater – Rivers
Status	open
Location	easting northing: 204280 57200 lat lon: 50.382043, -4.7543
Area	Devon And Cornwall
Sub-Area	West Devon And Cornwall
Summary	255 samples taken between 2024 and 2001

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.

43 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
Arsenic - As
As-Filtered
BOD ATU
C - Org Filt
Ca Filtered
Cadmium - Cd
Calcium - Ca
Cd Filtered
Chloride Ion
Cond @ 20C
Cond @ 25C
Copper - Cu
Cr- Filtered
Cu BLM Bio
Cu Filtered
E.coli C-MF
Fe- Filt
Hardness
IE Pres
Iron - as Fe
Lead - as Pb
Liq WRT OD
Magnesium-Mg
Mg Filtered
N Oxidised
NATGRIDREF
NH3 un-ion
Ni- Filtered
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Pb Filtered
Sld NV@500C
Sld Sus@105C
Temp Water
TurbidityNTU
Zinc - as Zn
Zn- Filtered
pH

Displaying the twenty most recent samples. You can see all 255 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 9 Nov 2022 to 1 Mar 2024

Notation	Determinand	Units	9 Nov 2022 10:12	14 Nov 2022 12:24	25 Jan 2023 10:55	3 Mar 2023 12:34	18 May 2023 09:50	6 Jul 2023 13:50	4 Sep 2023 09:18	1 Nov 2023 14:45	17 Jan 2024 09:46	1 Mar 2024 11:08
0061	pH		6.7	6.81	6.75	7.01	6.95	7.61	6.94	6.51	6.95	6.76
0076	Temperature of Water	°C	11.1	12.3	6.5	6.1	12.3	14.9	15.7	11.6	5.8	7.7
0077	Conductivity at 25 C	μs/cm	188	183	189	190	165	175	169	160	173	160
0111	Ammoniacal Nitrogen as N	mg/l	0.059	0.075	0.16	0.13	0.094	0.19	0.25	0.061	0.07	0.087
0116	Nitrogen, Total Oxidised as N	mg/l	0.82	0.93	1.8	1.1	1.2	0.87	0.81	0.94	1.5	1.3
0117	Nitrate as N	mg/l	0.816	0.923	1.8	1.09	1.19	0.813	0.78	0.933	1.49	1.3
0118	Nitrite as N	mg/l	0.0041	0.0066	< 0.004	0.0082	0.009	0.057	0.03	0.0067	0.0065	0.0043
0119	Ammonia un-ionised as N	mg/l	6.0e-05	0.00011	0.00013	0.00018	0.00018	0.00205	0.00062	4.0e-05	8.0e-05	8.0e-05
0135	Solids, Suspended at 105 C	mg/l	22	5.5	5.2	< 3	5.4	3.6	7.2	4.4	5.1	10
0143	Solids, non-volatile at 500 C	mg/l	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	22	26	24	26	24	25	27	27	26	24
0180	Orthophosphate, reactive as P	mg/l	0.017	0.027	0.014	0.021	0.018	0.075	0.058	0.021	< 0.01	0.016
9901	Oxygen, Dissolved, % Saturation	%	90.5	90.1	91.9	96	90.7	94.6	86.9	86.9	91.1	91.9
9924	Oxygen, Dissolved as O2	mg/l	9.94	9.62	11.3	11.9	9.69	9.54	8.61	9.43	11.4	10.9

Samples from 11 Nov 2019 to 26 Oct 2022

Notation	Determinand	Units	11 Nov 2019 14:44	4 Dec 2019 10:05	9 Jan 2020 10:28	14 Jan 2020 14:36	11 Feb 2020 10:06	16 Mar 2020 12:45	22 Jun 2021 11:48	17 Dec 2021 11:47	25 Feb 2022 13:56	26 Oct 2022 11:49
0050	Lead	μg/l		< 2	< 2		< 2
0052	Lead, Dissolved	μg/l		0.13	0.16		0.17
0061	pH		6.84	7.1	6.59	6.97	7.05	6.87	7.02	6.74	6.93	6.8
0062	Conductivity at 20 C	μs/cm						150
0076	Temperature of Water	°C	9.6			9.7		9.7	13.2	9.9	8.9	13.5
0077	Conductivity at 25 C	μs/cm	166	175	168	158	183	161	161	167	196	204
0085	BOD : 5 Day ATU	mg/l		< 1	< 1		1.1	< 1
0106	Cadmium, Dissolved	μg/l		< 0.01	< 0.01		0.011
0108	Cadmium	μg/l		< 0.1	< 0.1		< 0.1
0111	Ammoniacal Nitrogen as N	mg/l	0.099	0.097	0.15	0.098	0.16	0.093	0.23	0.11	0.11	0.12
0116	Nitrogen, Total Oxidised as N	mg/l	1.54			1.2		1.6	0.93	1.4	1.4	0.45
0117	Nitrate as N	mg/l	1.54			1.19		1.6	0.901	1.39	1.39	0.441
0118	Nitrite as N	mg/l	< 0.004			0.0063		0.0042	0.029	0.0067	0.0054	0.0095
0119	Ammonia un-ionised as N	mg/l	0.00012			0.00017		0.00013	0.00057	0.00011	0.00016	0.00018
0135	Solids, Suspended at 105 C	mg/l	22.3	5.6	6.8	29	15	8.2	6.5	5.9		9.6
0143	Solids, non-volatile at 500 C	mg/l	< 20			23		< 20	< 20	< 20		< 20
0158	Hardness, Total as CaCO3	mg/l		39	38.6		39
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	25			24		23	27	26	24	27
0180	Orthophosphate, reactive as P	mg/l	0.017			0.019		0.019	0.033	0.021	< 0.01	0.032
0235	Magnesium, Dissolved	mg/l		2.2	2.1		2.2
0237	Magnesium	mg/l		2.2	2.1		2.2
0239	Calcium, Dissolved	mg/l		12	12		12
0241	Calcium	mg/l		12	12		12
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l		4.3	6.3		5.2	4.2
3408	Zinc, Dissolved	μg/l		8.4	8		8.2
4821	Copper : BLM Bioavailable	μg/l		0.07	0.09		0.06
6045	Arsenic, Dissolved	μg/l		1.7	2		1.6	1.6
6046	Arsenic	μg/l		2.5	3.4		3.1	2.4
6051	Iron	μg/l		820	1100		1100
6396	Turbidity	ntu						8.4
6450	Copper, Dissolved	μg/l		1.3	1.4		1.2
6452	Copper	μg/l		4.1	4		2
6455	Zinc	μg/l		11	14		11
6460	Iron, Dissolved	μg/l		420	560		450
9901	Oxygen, Dissolved, % Saturation	%	90.4			94.6		90.3	92.4	98.5	97.3	89.3
9924	Oxygen, Dissolved as O2	mg/l	10.3			10.7		10.2	9.67	11.1	11.3	9.28

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sampling point Treverbyn Stream At Penrose

Determinands

Sampling results

Samples from 9 Nov 2022 to 1 Mar 2024

Samples from 11 Nov 2019 to 26 Oct 2022

sampling point
Treverbyn Stream At Penrose