sampling point
River Mere At Greatwood

Description	RIVER MERE AT GREATWOOD
Sampling point ID	SW-72923004
Type	Freshwater – Rivers
Status	open
Location	easting northing: 254993 112869 lat lon: 50.897041, -4.063356
Area	Devon And Cornwall
Sub-Area	East Devon And Cornwall
Summary	125 samples taken between 2017 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.

43 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
Avian Mito
BOD ATU
Bac All
Bac Ruminant
BacHF183
Calcium - Ca
Canine Mito
Cond @ 20C
Cond @ 25C
Cu Filtered
F Coli Pre
Hardness
Hdnss Ca
Hdnss Mg
Human Mito
MST Filter
MST Report
Magnesium-Mg
Mineral Oils
N Inorganic
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Oil & Grs Vs
Orthophospht
Oxygen Diss
Phenol Odour
PhenolicOdor
Potassium- K
Prep: DNA
Sld Sus@105C
StrepF PMF
Temp Water
Type of Flow
WethPresPrec
Zinc - as Zn
pH
pH in-situ

Displaying the twenty most recent samples. You can see all 125 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 3 Feb 2015 to 24 Apr 2017

Notation	Determinand	Units	3 Feb 2015 10:10	6 May 2015 13:02	13 Aug 2015 11:46	25 Nov 2015 11:20	9 Mar 2016 12:56	15 Jun 2016 12:57	2 Sep 2016 10:28	12 Dec 2016 11:16	9 Jan 2017 11:39	24 Apr 2017 09:08
0061	pH		7.51	7.6	7.6	6.99	7.54	7.5	7.98	7.76	7.73	7.73
0076	Temperature of Water	°C	3.6	8.8	14.5	9.9	6.4	13.8	15.2	7.9	8.3	9
0077	Conductivity at 25 C	μs/cm	201	341	223	200	154	238	257	213	213	224
0111	Ammoniacal Nitrogen as N	mg/l	0.045	0.05	< 0.03	0.052	0.101	0.054	< 0.03	0.049	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.9	1.29	1.74	2.84	1.27	1.71	1.25	2.79	2.89	2.62
0117	Nitrate as N	mg/l	3.89	1.27	1.74	2.82	1.26	1.69	1.25	2.78	2.87	2.61
0118	Nitrite as N	mg/l	0.0095	0.0184	0.0042	0.0176	0.0081	0.0248	< 0.004	0.0102	0.0151	0.0091
0119	Ammonia un-ionised as N	mg/l	0.00017	0.00034	< 0.00031	9.0e-05	0.00049	0.00042	< 0.00076	0.00044	< 0.00026	< 0.00028
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	34	37	52	41	28	45	68	37	41	50
0180	Orthophosphate, reactive as P	mg/l	0.023	0.019	0.087	0.037	0.04	0.053	0.096	0.043	0.043	0.042
9901	Oxygen, Dissolved, % Saturation	%	95.3	97	90	93.5	100.2	90	102.7	90.4	97.1	93.4
9924	Oxygen, Dissolved as O2	mg/l	12.6	11.2	9.15	10.6	12.3	9.29	10.3	10.7	11.4	10.8

Samples from 18 Feb 2010 to 6 Oct 2014

Notation	Determinand	Units	18 Feb 2010 08:45	26 Mar 2010 10:00	14 Mar 2013 11:25	4 Jun 2013 12:54	24 Sep 2013 09:55	4 Dec 2013 08:05	16 Jan 2014 12:40	23 Apr 2014 12:57	2 Jul 2014 12:14	6 Oct 2014 10:31
0061	pH		7.1	7.4	7.8	8.03	7.5	7.84	7.3	7.7	8	7.6
0076	Temperature of Water	°C	4.8	7.7	2.8	12.2	14.6	7	7	11.2	12.3	11.3
0077	Conductivity at 25 C	μs/cm	213	171	213	217	247	211	177	203	231	229
0111	Ammoniacal Nitrogen as N	mg/l	0.117	0.185	0.046	< 0.03	< 0.03	0.032	0.049	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.52	3.25	2.42	2.59	2.29	3.32	2.95	2.14	2.13	1.38
0117	Nitrate as N	mg/l	3.5	3.22	2.41	2.58	2.28	3.31	2.94	2.13	2.12	1.38
0118	Nitrite as N	mg/l	0.0194	0.026	0.0123	0.0131	0.0071	0.012	0.0083	0.0111	0.0135	< 0.004
0119	Ammonia un-ionised as N	mg/l	0.00019	0.00072	0.00031	< 0.00064	< 0.00025	0.00033	0.00014	< 0.0003	< 0.00065	< 0.00024
0135	Solids, Suspended at 105 C	mg/l	12.4	34.4
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	34	35	46	48	53	39	37	42	52	52
0180	Orthophosphate, reactive as P	mg/l	0.031	0.039	0.048	0.03	0.095	0.029	0.037	0.038	0.066	0.059
0664	Visible oil or grease, significant trace: Present/Not found (1/0)	pres/nf	0	0
6450	Copper, Dissolved	μg/l	1.1	3.6
6455	Zinc	μg/l	14.4	11.2
6841	Phenolic Odour	pres/nf	0	0
9901	Oxygen, Dissolved, % Saturation	%	92	93	102.8	99	100	96	112	102	91	95
9924	Oxygen, Dissolved as O2	mg/l	11.8	11.1	13.9	10.6	10.1	11.6	13.6	11.2	9.72	10.4

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sampling point River Mere At Greatwood

Determinands

Sampling results

Samples from 3 Feb 2015 to 24 Apr 2017

Samples from 18 Feb 2010 to 6 Oct 2014

sampling point
River Mere At Greatwood