sampling point
Rettendon Bk.W Arm B1012 Rd.Br.

Description	RETTENDON BK.W ARM B1012 RD.BR.
Sampling point ID	AN-CE1540
Type	Freshwater – Rivers
Status	open
Location	easting northing: 579345 197527 lat lon: 51.647926, 0.590884
Area	Essex Norfolk And Suffolk
Sub-Area	Essex Team Sub Area
Summary	49 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.

14 determinands have been measured at this site

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

Displaying the twenty most recent samples. You can see all 49 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 13 Apr 2016 to 17 Jun 2024

Notation	Determinand	Units	13 Apr 2016 08:52	15 Jun 2016 09:38	12 Jul 2016 12:48	30 Aug 2016 12:04	4 Oct 2016 09:13	2 Nov 2016 08:50	8 Dec 2016 09:09	9 Jan 2017 08:34	8 Feb 2017 12:10	17 Jun 2024 11:40
0061	pH		8.13	8.09	8.19	7.72	7.85	7.87	7.72	7.93	8.04	8.17
0076	Temperature of Water	°C	6.4	14.4	16.5	15.3	10.5	5.9	7	6.3	5.3	14.5
0077	Conductivity at 25 C	μs/cm	1305	935	1532	1103	1697	1329	1356	2221	1306	1650
0085	BOD : 5 Day ATU	mg/l										1.3
0111	Ammoniacal Nitrogen as N	mg/l	0.098	0.291	0.045	0.054	0.054	< 0.03	1.41	0.149	< 0.03	0.17
0116	Nitrogen, Total Oxidised as N	mg/l	5.75	6.27	2.49	0.36	0.54	0.62	0.97	4	27.5	0.78
0117	Nitrate as N	mg/l	5.71	6.21	2.47	0.349	0.527	0.615	0.888	3.93	27.5	0.723
0118	Nitrite as N	mg/l	0.0392	0.0573	0.0225	0.0111	0.0129	0.0053	0.0825	0.0686	0.023	0.057
0119	Ammonia un-ionised as N	mg/l	0.00137	0.00732	0.00132	0.00077	0.00073	< 0.0003	0.0109	0.00177	< 0.00039	0.00431
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	247	191	293	269	265	251	272	235	158	330
0180	Orthophosphate, reactive as P	mg/l	0.152	0.216	0.138	0.338	0.373	0.423	0.106	0.143	0.124	0.45
9901	Oxygen, Dissolved, % Saturation	%	97.5	87.6	80.7	65.3	76.1	75.1	52.7	75.3	99.2	68.8
9924	Oxygen, Dissolved as O2	mg/l	12	8.93	7.86	6.53	8.47	9.36	6.39	9.29	12.6	7

Samples from 7 May 2015 to 2 Mar 2016

Notation	Determinand	Units	7 May 2015 09:57	4 Jun 2015 14:20	20 Jul 2015 12:23	5 Aug 2015 12:29	2 Sep 2015 11:38	1 Oct 2015 10:37	11 Nov 2015 08:23	1 Dec 2015 10:37	3 Feb 2016 11:29	2 Mar 2016 14:54
0061	pH		8.1	7.88	7.79	7.63	7.92	7.76	7.8	8.03	8.23	8.47
0076	Temperature of Water	°C	11.5	15.9	16.2	17.2	13.8	11.9	12.6	10.2	5	5.3
0077	Conductivity at 25 C	μs/cm	1620	1807	2465	5439	1081	2939	1365	1189	1455	1942
0111	Ammoniacal Nitrogen as N	mg/l	0.056	0.255	0.709	0.607	0.077	0.105	< 0.03	0.049	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.32	< 0.2	< 0.2	0.91	0.55	0.4	3.67	8.44	6.87	2.58
0117	Nitrate as N	mg/l	1.29	0.177	0.125	0.775	0.533	0.375	3.47	8.42	6.86	2.56
0118	Nitrite as N	mg/l	0.0256	0.0229	0.0753	0.135	0.0166	0.0247	0.204	0.0231	0.0146	0.0189
0119	Ammonia un-ionised as N	mg/l	0.00114	0.00546	0.0127	0.00812	0.00155	0.00128	< 0.00042	0.00091	< 0.00038	< 0.00039
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	255	323	296	286	197	264	276	211	250	230
0180	Orthophosphate, reactive as P	mg/l	0.121	0.354	0.832	0.985	0.213	0.341	0.217	0.204	0.135	0.123
9901	Oxygen, Dissolved, % Saturation	%	96.8	75.4	33.5	56.4	73.5	70.2	59.5	83.2	103.1	113.6
9924	Oxygen, Dissolved as O2	mg/l	10.5	7.44	3.28	5.41	7.59	7.57	6.31	9.33	13.2	14.4

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sampling point Rettendon Bk.W Arm B1012 Rd.Br.

Determinands

Sampling results

Samples from 13 Apr 2016 to 17 Jun 2024

Samples from 7 May 2015 to 2 Mar 2016

sampling point
Rettendon Bk.W Arm B1012 Rd.Br.