sampling point
River Yeo (Molland) At Grilstone

Description	RIVER YEO (MOLLAND) AT GRILSTONE
Sampling point ID	SW-73063202
Type	Freshwater – Rivers
Status	closed
Location	easting northing: 273160 124350 lat lon: 51.00451, -3.809172
Area	Devon And Cornwall
Sub-Area	East Devon And Cornwall
Summary	127 samples taken between 2015 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.

33 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Cond @ 20C
Cond @ 25C
Cu Filtered
Hardness
Hdnss Ca
Hdnss Mg
Magnesium-Mg
Mineral Oils
N Inorganic
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Oil & Grs Vs
Orthophospht
OrthophsFilt
Oxygen Diss
Phenol Odour
PhenolicOdor
Phosphorus-P
Potassium- K
Sld Sus@105C
Temp Water
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 127 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 14 Jun 2013 to 7 Aug 2015

Notation	Determinand	Units	14 Jun 2013 11:53	6 Sep 2013 13:13	4 Dec 2013 11:37	21 Jan 2014 10:49	30 Apr 2014 15:15	23 Jul 2014 12:50	16 Oct 2014 10:54	27 Feb 2015 10:41	6 May 2015 12:07	7 Aug 2015 10:54
0061	pH		7.7	7.8	7.94	7.63	8.2	7.6	7.9	7.5	7.8	7.6
0076	Temperature of Water	°C	13.1	14.5	7.4	6.4	12.6	17.4	11.1	6.9	10.2	12.7
0077	Conductivity at 25 C	μs/cm	155	167	152	127	141	168	170	129	149	136
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	1.49	1.09	1.93	2.6	1.4	1.43	1.27	2.54	1.32	1.47
0117	Nitrate as N	mg/l	1.48	1.09	1.93	2.6	1.4	1.43	1.27	2.54	1.31	1.47
0118	Nitrite as N	mg/l	0.0088	< 0.004	< 0.004	< 0.004	< 0.004	0.0047	< 0.004	< 0.004	0.0137	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00035	< 0.00048	< 0.00039	< 0.00018	< 0.00066	< 0.00038	< 0.00047	< 0.00014	< 0.00035	< 0.00027
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	45	49	35	24	37	49	49	21	37	34
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.01	0.0111	0.0138	0.0175
9901	Oxygen, Dissolved, % Saturation	%	94	90	96.7	100	101	106	96	98	101	96
9924	Oxygen, Dissolved as O2	mg/l	9.86	9.15	11.6	12.3	10.7	10.1	10.5	11.9	11.3	10.2

Samples from 22 Jul 2009 to 12 Mar 2013

Notation	Determinand	Units	22 Jul 2009 12:45	19 Aug 2009 10:20	10 Sep 2009 10:00	7 Oct 2009 12:45	9 Nov 2009 11:55	1 Dec 2009 09:30	18 Jan 2010 12:15	16 Feb 2010 12:55	12 Mar 2010 11:30	12 Mar 2013 08:23
0061	pH		7.2	8	7.7	7.6	7.5	7.3	7.6	7.5	7.7	7.9
0076	Temperature of Water	°C	14	14.91	12	13.4	9	6.5	8	5.5	3.5	1
0077	Conductivity at 25 C	μs/cm	108	156	142	131	153	143	147	160	151	161
0085	BOD : 5 Day ATU	mg/l	< 1	< 1	< 1	< 1	< 1	1.1	< 1	1	< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.037	0.051	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.97	2.02	2.33	1.6	2.49	2.69	2.9	1.85	2.21	1.71
0117	Nitrate as N	mg/l	1.96	2.02	2.33	1.6	2.49	2.69	2.9	1.84	2.21	1.71
0118	Nitrite as N	mg/l	0.0061	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	0.0093	0.0041	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00012	< 0.00078	< 0.00032	< 0.00028	< 0.00016	< 9.0e-05	< 0.00019	0.00015	0.00029	< 0.00022
0135	Solids, Suspended at 105 C	mg/l	13.3	< 3	< 3	< 3	7.8	11.4	20	20.3	< 3
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	34	38	35	50	34	30	28	32	37	42
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02
0664	Visible oil or grease, significant trace: Present/Not found (1/0)	pres/nf	0	0	0	0	0	0	0	0	0
6450	Copper, Dissolved	μg/l	1.4	< 1	< 1	1.48	< 1	< 1	1.2	< 1	< 1
6455	Zinc	μg/l	< 5	< 5	< 5	< 5	< 5	5.7	< 5	< 5	< 5
6841	Phenolic Odour	pres/nf	0	0	0	0	0	0	0	0	0
9901	Oxygen, Dissolved, % Saturation	%	98	104.4	100	104	106	94	112	91	101	105.3
9924	Oxygen, Dissolved as O2	mg/l	10.1	10.5	10.8	10.8	12.2	11.5	13.2	11.5	13.4	14.9

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sampling point River Yeo (Molland) At Grilstone

Determinands

Sampling results

Samples from 14 Jun 2013 to 7 Aug 2015

Samples from 22 Jul 2009 to 12 Mar 2013

sampling point
River Yeo (Molland) At Grilstone