sampling point
R.Colne Gt. Yeldham Rd. Bridge

Description	R.COLNE GT. YELDHAM RD. BRIDGE
Sampling point ID	AN-CL0848
Type	Freshwater – Rivers
Status	open
Location	easting northing: 576002 238392 lat lon: 52.01603, 0.563381
Area	Essex Norfolk And Suffolk
Sub-Area	Essex Team Sub Area
Summary	167 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.

21 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Chloride Ion
Cond @ 20C
Cond @ 25C
GCMS S-Vol
N Inorganic
N Oxidised
NATGRIDREF
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
Turbidity
TurbidityNTU
pH
pH Inst unit

Displaying the twenty most recent samples. You can see all 167 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 15 Mar 2016 to 7 Apr 2017

Notation	Determinand	Units	15 Mar 2016 14:55	28 Apr 2016 11:14	12 May 2016 11:39	28 Jul 2016 13:23	31 Aug 2016 12:18	28 Sep 2016 11:28	9 Nov 2016 11:22	13 Dec 2016 11:16	10 Feb 2017 10:55	7 Apr 2017 11:03
0061	pH		8.26	8.14	8.16	8.3	7.78	7.99	7.85	8.02	8.25	8.03
0076	Temperature of Water	°C	6.5	6.4	15.1	16.7	15.1	13.9	6.4	7.8	3.5	8.8
0077	Conductivity at 25 C	μs/cm	833	812	807	970	959	972	885	807	797	914
0111	Ammoniacal Nitrogen as N	mg/l	0.042	< 0.03	0.079	0.046	0.224	0.049	0.045	0.044	< 0.03	0.053
0116	Nitrogen, Total Oxidised as N	mg/l	6.11	4.39	3.33	5.11	5.02	5.37	4.31	11.1	13.2	4.02
0117	Nitrate as N	mg/l	6.09	4.37	3.27	5.07	4.92	5.34	4.27	11.1	13.2	3.99
0118	Nitrite as N	mg/l	0.0162	0.0215	0.0552	0.0387	0.102	0.0251	0.0371	0.0293	0.0143	0.0315
0119	Ammonia un-ionised as N	mg/l	0.00059	< 0.00042	0.00209	0.00137	0.00361	0.00116	0.00045	0.00068	< 0.00034	0.00089
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	322	317	293	313	287	320	263	276	261	319
0180	Orthophosphate, reactive as P	mg/l	0.108	0.074	0.219	0.556	1.09	0.769	0.707	0.179	0.079	0.364
9901	Oxygen, Dissolved, % Saturation	%	101	106	107.9	127.5	70.5	74	72.7	88.7	98.3	99.1
9924	Oxygen, Dissolved as O2	mg/l	12.4	13	10.8	12.4	7.08	7.62	8.95	10.5	13	11.5

Samples from 1 Apr 2015 to 15 Jan 2016

Notation	Determinand	Units	1 Apr 2015 14:24	26 May 2015 13:07	2 Jun 2015 09:12	9 Jul 2015 09:52	10 Aug 2015 10:35	8 Sep 2015 09:37	1 Oct 2015 13:50	6 Nov 2015 12:27	2 Dec 2015 11:02	15 Jan 2016 11:00
0061	pH		8.17	8.16	7.95	7.77	7.71	7.91	8.06	8.08	8.15	8.26
0076	Temperature of Water	°C	7.7	13.3	11.8	12.9	16	12.2	12.5	12.3	10.1	3.8
0077	Conductivity at 25 C	μs/cm	867	889	901	906	989	933	962	715	722	777
0111	Ammoniacal Nitrogen as N	mg/l	0.031	0.05	0.088	0.221	0.106	0.06	0.042	< 0.03	0.031	0.048
0116	Nitrogen, Total Oxidised as N	mg/l	3.89	4.09	3.29	2.32	5.83	4.51	4.51	11.5	11.2	8
0117	Nitrate as N	mg/l	3.86	4.02	3.23	2.22	5.74	4.48	4.49	11.5	11.2	7.98
0118	Nitrite as N	mg/l	0.0294	0.0686	0.0579	0.0963	0.0909	0.0293	0.0242	0.0216	0.0252	0.0162
0119	Ammonia un-ionised as N	mg/l	0.00048	0.00116	0.00164	0.00296	0.00156	0.00105	0.00092	< 0.00065	0.00057	0.00056
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	319	314	318	313	299	306	317	255	279	302
0180	Orthophosphate, reactive as P	mg/l	0.171	0.417	0.447	0.883	0.883	0.556	0.564	0.095	0.058	0.061
9901	Oxygen, Dissolved, % Saturation	%	102.8	110.3	72.8	56.2	57.4	72.1	89	91.5	87.9	95.3
9924	Oxygen, Dissolved as O2	mg/l	12.2	11.5	7.86	5.92	5.65	7.72	9.46	9.77	9.88	12.5

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sampling point R.Colne Gt. Yeldham Rd. Bridge

Determinands

Sampling results

Samples from 15 Mar 2016 to 7 Apr 2017

Samples from 1 Apr 2015 to 15 Jan 2016

sampling point
R.Colne Gt. Yeldham Rd. Bridge