sampling point
R.Hiz Rd.Br. Biggin Lane Hitchin

Description	R.HIZ RD.BR. BIGGIN LANE HITCHIN
Sampling point ID	AN-13M30
Type	Freshwater – Rivers
Status	open
Location	easting northing: 518532 229015 lat lon: 51.947005, -0.276826
Area	Cambridgeshire And Bedfordshire
Sub-Area	Brampton Team Sub Area
Summary	95 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.

13 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Cond @ 25C
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 95 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 18 Aug 2023 to 17 May 2024

Notation	Determinand	Units	18 Aug 2023 12:12	20 Sep 2023 14:00	16 Oct 2023 08:45	22 Nov 2023 08:36	8 Dec 2023 16:00	16 Jan 2024 08:59	21 Feb 2024 11:23	18 Mar 2024 08:40	17 Apr 2024 08:24	17 May 2024 11:58
0061	pH		7.9	8.1	8.03	7.83	7.99	8.12	8.04	7.89	7.94	8.02
0076	Temperature of Water	°C	15.5	15.5	7	8	7.3	3.7	10	9.7	8.5	13.7
0077	Conductivity at 25 C	μs/cm	654	653	746	771	806	677	647	655	644	650
0085	BOD : 5 Day ATU	mg/l							1.5	< 1	1.1	1.2
0111	Ammoniacal Nitrogen as N	mg/l	0.034	0.044	0.075	0.034	0.063	0.053	0.04	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	4.6	4.3	4.1	3.3	3.9	6.4	5.5	7.3	7.1	6.5
0117	Nitrate as N	mg/l	4.57	4.26	4.08	3.26	3.87	6.38	5.48	7.28	7.08	6.46
0118	Nitrite as N	mg/l	0.031	0.036	0.024	0.038	0.028	0.02	0.02	0.02	0.023	0.038
0119	Ammonia un-ionised as N	mg/l	0.00074	0.0012	0.0011	0.00036	0.00092	0.00061	0.00073	< 0.00042	< 0.00043	< 0.00072
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	270	260	290	310	310	280	260	270	270	270
0180	Orthophosphate, reactive as P	mg/l	0.032	0.062	0.04	0.031	0.031	0.057	0.04	0.035	0.025	0.027
9901	Oxygen, Dissolved, % Saturation	%	85.8	88.7	83.4	66.3	75.2	91.6	79.6	95.1	93.3	106
9924	Oxygen, Dissolved as O2	mg/l	8.54	8.83	10.1	7.84	9.05	12.1	8.97	10.8	10.9	11

Samples from 3 Jun 2021 to 19 Jul 2023

Notation	Determinand	Units	3 Jun 2021 08:15	6 Jul 2021 11:01	13 Aug 2021 09:06	24 Sep 2021 11:44	11 Oct 2021 13:10	5 Nov 2021 13:35	15 Dec 2021 11:48	24 May 2023 11:11	19 Jun 2023 10:53	19 Jul 2023 12:08
0061	pH		7.68	7.75	7.95	7.98	8	8.02	7.97	8.03	7.84	7.86
0076	Temperature of Water	°C	14.3	14.3	13.9	13.3	11.1	7.1	9.9	12.3	15.6	14.7
0077	Conductivity at 25 C	μs/cm	643	532	641	648	692	721	725	658	652	652
0085	BOD : 5 Day ATU	mg/l								1.7	1.6
0111	Ammoniacal Nitrogen as N	mg/l	0.031	0.094	0.045	0.055	0.054	0.054	0.051	< 0.03	< 0.03	0.1
0116	Nitrogen, Total Oxidised as N	mg/l	4.9	2.9	4.3	5	4.4	4.3	4.1	4.5	3.7	4.1
0117	Nitrate as N	mg/l	4.86	2.87	4.28	4.98	4.38	4.28	4.07	4.47	3.65	4.05
0118	Nitrite as N	mg/l	0.039	0.027	0.022	0.018	0.02	0.022	0.035	0.028	0.05	0.051
0119	Ammonia un-ionised as N	mg/l	0.00038	0.00133	0.00098	0.00122	0.00107	0.0008	0.00086	< 0.00065	< 0.00057	0.00188
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	260	220	280	270	290	290	300	270	270	270
0180	Orthophosphate, reactive as P	mg/l	0.012	0.04	0.031	0.026	0.032	0.033	0.028	0.022	0.022	0.033
9901	Oxygen, Dissolved, % Saturation	%	80.7	80.2	94.3	91.5	89.7	83.8	79.3	100.2	84.2	79.5
9924	Oxygen, Dissolved as O2	mg/l	8.24	8.19	9.72	9.55	9.85	10.1	8.96	10.7	8.36	8.05

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sampling point R.Hiz Rd.Br. Biggin Lane Hitchin

Determinands

Sampling results

Samples from 18 Aug 2023 to 17 May 2024

Samples from 3 Jun 2021 to 19 Jul 2023

sampling point
R.Hiz Rd.Br. Biggin Lane Hitchin