sampling point
Black Brook D/S Of Upper Firth House Mll

Description	BLACK BROOK DOWNSTREAM OF UPPER FIRTH HOUSE MILL DISCHARGE
Sampling point ID	NE-49500037
Type	Freshwater – Rivers
Status	open
Location	easting northing: 405997 417646 lat lon: 53.655263, -1.91073
Area	Yorkshire
Sub-Area	Aire, Calder, Wharfe
Summary	94 samples taken between 2024 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.

35 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
COD as O2
Calcium - Ca
Chloride Ion
Cond @ 25C
Cu Filtered
Hardness
Liqcolour-mn
Liqcolour-se
Liqcolour-st
Magnesium-Mg
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Obs Flow ROC
Oil & Grs Vs
Orthophospht
Oxygen Diss
Phenol Odour
Sample Depth
Sld Sus@105C
Solid quanty
Temp Water
Type of Flow
Weth7Dy-Prec
Weth7Dy-Temp
WethPresPrec
WethPresTemp
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 94 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 20 Aug 2008 to 18 Jul 2024

Notation	Determinand	Units	20 Aug 2008 07:55	2 Dec 2008 11:40	6 Feb 2009 10:25	12 Sep 2013 13:49	12 Mar 2014 12:45	8 Sep 2014 13:04	11 Mar 2015 14:34	23 May 2018 14:30	30 May 2018 06:30	18 Jul 2024 06:47
0061	pH		7.6	8	7.4	7.88	8.02	8.03	7.42			7.79
0076	Temperature of Water	°C	12.2	5.1	2	12.4	7.9	12.9	6.5			12.8
0077	Conductivity at 25 C	μs/cm				349	315	279	210			229
0085	BOD : 5 Day ATU	mg/l								1.25		< 4
0092	Chemical Oxygen Demand :- {COD}	mg/l								10
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	0.032	< 0.03	< 0.03	< 0.03		< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.94	0.74	0.73	0.9	0.7	0.44	0.75	0.53		0.49
0117	Nitrate as N	mg/l	0.936	0.719	0.726	0.896	0.696	0.436	0.746			0.486
0118	Nitrite as N	mg/l	< 0.004	0.0207	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004		< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00026	< 0.00038	< 8.0e-05	< 0.0005	0.0005	< 0.00068	< 0.00011			< 0.00042
0135	Solids, Suspended at 105 C	mg/l								5.93
0162	Alkalinity to pH 4.5 as CaCO3	mg/l				54	48	54	27			49
0172	Chloride	mg/l								30.7
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.02	< 0.02	< 0.02	0.149	< 0.02	< 0.01	< 0.01	< 0.01	< 0.01
9901	Oxygen, Dissolved, % Saturation	%	96	91	93	89.1	108.4	105.6	98.8			102.2
9924	Oxygen, Dissolved as O2	mg/l	10.3	11.6	12.8	9.49	12.8	11.1	12.1			10.8

Samples from 25 Sep 2006 to 19 May 2008

Notation	Determinand	Units	25 Sep 2006 08:35	6 Nov 2006 08:00	28 Nov 2006 08:10	2 Jan 2007 12:45	27 Apr 2007 10:00	17 Jul 2007 07:45	15 Oct 2007 07:30	24 Jan 2008 07:45	10 Apr 2008 08:25	19 May 2008 10:40
0006	Sample Depth below surface	m						0.1
0061	pH		7.4	7.5	6.9	7.5	7.2	6.9	7.5	6.9	7	7.9
0076	Temperature of Water	°C	12.3	9.2	9.4	6.3	9.2	13.7	11.3	5.8	6.1	8.3
0085	BOD : 5 Day ATU	mg/l	< 1	1.01	< 1.39	< 1	< 1	< 1	< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.0412	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.571	0.841	1.22	0.733	0.56	0.76	0.53	0.84	0.84	0.68
0117	Nitrate as N	mg/l	0.567	0.837	1.19	0.729	0.556	0.756	0.526	0.836	0.836	0.676
0118	Nitrite as N	mg/l	< 0.004	< 0.004	0.027	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00017	< 0.00017	6.0e-05	< 0.00013	< 8.0e-05	< 6.0e-05	< 0.00019	< 3.0e-05	< 4.0e-05	< 0.00038
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
6450	Copper, Dissolved	μg/l	1.94	1.43	3.08	2.52
6455	Zinc	μg/l	39.3	16	47.4	17.8
6841	Phenolic Odour	pres/nf						0	0
9901	Oxygen, Dissolved, % Saturation	%	101	90	101	96	95	97	100	96	91	101
9924	Oxygen, Dissolved as O2	mg/l	10.8	10.3	11.5	11.8	10.9	10	10.9	12	11.3	11.9

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sampling point Black Brook D/S Of Upper Firth House Mll

Determinands

Sampling results

Samples from 20 Aug 2008 to 18 Jul 2024

Samples from 25 Sep 2006 to 19 May 2008

sampling point
Black Brook D/S Of Upper Firth House Mll