BRL (Bristol Water Plc)

Report Data Range: For the whole year 2021

Table 1: Quality of water leaving service treatment works – European Standards

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests Failed	1 Percentile (representing a minimum)	99 Percentile (representing a maximum)	No. of works with failures
Nitrite (Total)	A013B	0.1 mg NO2/l	122	0	<0.002	<0.01894	0
Totals			122	0

Table 2: Quality of water leaving service treatment works – National Standards

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests Failed	1 Percentile (representing a minimum)	99 Percentile (representing a maximum)	No. of works with failures
E coli (faecal coliforms Confirmed)	C002	0 number/100 ml	3,371	0	0	0	0
Total Coliforms (Confirmed)	C001	0 number/100 ml	3,371	5	0	0	4
Totals			6,742	5

Table 3: Quality of water leaving service treatment works – Additional Monitoring Requirements

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests exceeding specification	1 Percentile (representing a minimum)	99 Percentile (representing a maximum)
Colony Counts After 3 Days At 22øc (Colony Counts)	C007	No abnormal change	3,371	N/A	0	5
Residual Disinfectant – Free	C009	No abnormal change	3,368	N/A	0.38	1.73
Residual Disinfectant – Total	C010	No abnormal change	3,368	N/A	0.45	1.79
Turbidity – Indicator	A002A	1 NTU	3,371	1	<0.13	0.37
Totals			13,478	1

Table 4: Quality of water leaving service reservoirs – National Standards

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests Failed	1 Percentile (representing a minimum)	99 Percentile (representing a maximum)	No. of reservoirs failing standard
E coli (faecal coliforms Confirmed)	C002	0 number/100 ml	7,941	0	0	0	0
Total Coliforms (Confirmed)	C001	0 number/100 ml	7,941	3	0	0	0
Totals:			15,882	3

Table 5: Quality of water leaving service reservoirs – Additional Monitoring Requirements

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests exceeding specification	1 Percentile (representing a minimum)	99 Percentile (representing a maximum)
Colony Counts After 3 Days At 22øc (Colony Counts)	C007	No abnormal change	7,941	N/A	0	208
Residual Disinfectant – Free	C009	No abnormal change	7,936	N/A	<0.05	0.75
Residual Disinfectant – Total	C010	No abnormal change	7,936	N/A	0.14	0.84
Totals:			23,813	0

Table 6: Quality of water leaving bulk supply points – European Standards

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests Failed	1 Percentile (representing a minimum)	99 Percentile (representing a maximum)	No. of supply point with failures
1 2-Dichloroethane (Total)	F001	3 µg/l	123	0	<0.16	<0.16	0
Benzene (Total)	F002	1 µg/l	122	0	<0.06	<0.09	0
Boron	D005A	1 mg B/l	123	0	0.016668	0.15252	0
Cyanide (Total)	B003	50 µg CN/l	119	0	<1.2	<5.5	0
Fluoride (Total)	A027	1.5 mg F/l	124	0	0.05	0.42	0
Mercury (Total)	B005	1 µg Hg/l	120	0	<0.04	<0.06	0
Pesticides (Total by Calculation)	B010	0.5 µg/l	123	0	0	0.0188	0
Pesticides 2 4-D	P020	0.1 µg/l	29	0	<0.012	<0.012	0
Pesticides Atrazine	P004	0.1 µg/l	7	0	<0.004	0.015	0
Pesticides Azoxystrobin	P227	0.1 µg/l	7	0	<0.007	0.008	0
Pesticides Bixafen	P279	0.1 µg/l	26	0	<0.004	<0.014	0
Pesticides Boscalid	P231	0.1 µg/l	15	0	<0.009	<0.011	0
Pesticides Bromoxynil	P008	0.1 µg/l	8	0	<0.009	<0.009	0
Pesticides Carbetamide	P010	0.1 µg/l	29	0	<0.008	<0.01	0
Pesticides Chlormequat	P163	0.1 µg/l	7	0	<0.003	<0.003	0
Pesticides Chlorothalonil	P015	0.1 µg/l	7	0	<0.006	<0.014	0
Pesticides Clopyralid	P018	0.1 µg/l	68	0	<0.011	0.02	0
Pesticides Cyproconazole	P207	0.1 µg/l	15	0	<0.007	<0.008	0
Pesticides Deltamethrin	P095	0.1 µg/l	16	0	<0.005	<0.009	0
Pesticides Desthioprothioconazole	P237	0.1 µg/l	15	0	<0.005	<0.007	0
Pesticides Diflufenican	P157	0.1 µg/l	7	0	<0.007	<0.009	0
Pesticides Epoxyconazole	P217	0.1 µg/l	7	0	<0.005	<0.006	0
Pesticides Flufenacet	P230	0.1 µg/l	36	0	<0.008	<0.009	0
Pesticides Fluroxypyr	P040	0.1 µg/l	36	0	<0.009	<0.012	0
Pesticides Fluxapyroxad	P274	0.1 µg/l	37	0	<0.009	<0.011	0
Pesticides Glyphosate	P042	0.1 µg/l	82	0	<0.005	<0.02	0
Pesticides Lambda-Cyhalothrin	P216	0.1 µg/l	26	0	<0.006	<0.006	0
Pesticides MCPA 4-chloro-o-tolyloxyacetic acid	P054	0.1 µg/l	36	0	<0.008	<0.012	0
Pesticides MCPP (Mecoprop)	P053	0.1 µg/l	36	0	<0.007	0.009	0
Pesticides Mepiquat	P165	0.1 µg/l	42	0	<0.004	<0.004	0
Pesticides Metaldehyde	P226	0.1 µg/l	95	0	<0.007	0.013	0
Pesticides Metazachlor	P203	0.1 µg/l	29	0	<0.006	<0.007	0
Pesticides Metconazole	P281	0.1 µg/l	7	0	<0.005	<0.005	0
Pesticides Metsulfuron	P210	0.1 µg/l	26	0	<0.004	<0.026	0
Pesticides Pendimethalin	P118	0.1 µg/l	7	0	<0.009	<0.02	0
Pesticides Propyzamide	P071	0.1 µg/l	29	0	<0.007	<0.009	0
Pesticides Prosulfocarb	P243	0.1 µg/l	36	0	<0.007	<0.009	0
Pesticides Quinmerac	P224	0.1 µg/l	29	0	<0.006	<0.007
Pesticides Tebuconazole	P177	0.1 µg/l	36	0	<0.005	<0.009	0
Pesticides Thifensulfuron-methyl	P260	0.1 µg/l	20	0	<0.006	0.011	0
Pesticides Tri-allate	P079	0.1 µg/l	26	0	<0.005	<0.006	0
Pesticides Triclopyr	P131	0.1 µg/l	36	0	<0.015	<0.028	0
Pesticides Trinexapac-ethyl	P236	0.1 µg/l	26	0	<0.011	<0.012	0
Radon	F031	100 Bq/l	5	0	3.4	5.61	0
Trichloroethene & Tetrachloroethene – Sum Of 2 Substances (Total by Calculation)	D009B	10 µg/l	122	0	0.71	0.85	0
Totals			1,977	0

Table 7: Quality of water leaving bulk supply points – National Standards

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests Failed	1 Percentile (representing a minimum)	99 Percentile (representing a maximum)	No. of supply points with failures
Tetrachloromethane (Total)	D008	3 µg/l	121	0	<0.13	<0.16	0
Totals			121	0

Table 8: Quality of water leaving bulk supply points – Additional Monitoring Requirements

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests exceeding specification	1 percentile (representing a minimum)	99 percentile (representing a maximum)
Chloride	D002A	250 mg Cl/l	124	0	12.85	68.65
Clostridium Perfringens (Sulphite-reducing Clostridia) (Confirmed)	C004A	0 number/100 ml	1,227	0	0	0
Conductivity (Electrical Conductivity)	D001	2500 µS/cm at 20°C	1,226	0	213.35	731.46
Gross Alpha	F004	0.1 Bq/l	23	0	<0.022	0.074
Gross Beta	F005	1 Bq/l	23	0	0.055	0.113
Sulphate	A007	250 mg SO4/l	123	0	6.9664	128.04
Total Organic Carbon	A017	No abnormal change	123	N/A	0.6	3.0672
Totals			2,869	0

Table 9: Quality of water at consumer’s tap (zones) – European Standards

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests Failed	1 Percentile (representing a minimum)	99 Percentile (representing a maximum)	No. of zones failing standard
1 2-Dichloroethane (Total)	F001	3 µg/l	4	0	<0.16	<0.16	0
Antimony	B008A	5 µg Sb/l	215	0	<0.01	0.4768	0
Arsenic (Total)	B001A	10 µg As/l	215	0	0.0316	4.4916	0
Benzene (Total)	F002	1 µg/l	4	0	<0.06	<0.06	0
Benzo[a]Pyrene (Total)	D007	0.01 µg/l	213	0	<0.00057	<0.0012604	0
Boron	D005A	1 mg B/l	4	0	<0.0319	<0.0319	0
Bromate	F003	10 µg BrO3/l	215	0	<0.15	6.056	0
Cadmium (Total)	B002	5 µg Cd/l	215	0	<0.01	0.7284	0
Chromium (Total)	B004	50 µg Cr/l	215	0	<0.04	0.5652	0
Copper (Total)	A024A	2 mg Cu/l	215	0	<0.0003548	0.46804	0
Cyanide (Total)	B003	50 µg CN/l	4	0	<1.4	<5.5	0
E coli (faecal coliforms Confirmed)	C002	0 number/100 ml	3,127	0	0	0	0
Enterococci (Confirmed)	C003	0 number/100 ml	215	0	0	0	0
Fluoride (Total)	A027	1.5 mg F/l	4	0	0.09	0.12	0
Lead (10 – will apply 25.12.2013)	B007B	10 µg Pb/l	212	3	<0.02	17.559	3
Mercury (Total)	B005	1 µg Hg/l	4	0	<0.06	<0.06	0
Nickel (Total)	B006A	20 µg Ni/l	215	0	0.2	13.168	0
Nitrate (Total)	A012	50 mg NO3/l	214	0	<2.13	31.158	0
Nitrite – Consumer’s Taps	A013A	0.5 mg NO2/l	214	0	<0.002	<0.0139	0
Nitrite/Nitrate formula	A013C	1 mg/l	214	0	0.043	0.6241	0
Pesticides (Total by Calculation)	B010	0.5 µg/l	4	0	0	0	0
Pesticides 2 4-D	P020	0.1 µg/l	4	0	<0.012	<0.012	0
Pesticides 2 4-DB	P082	0.1 µg/l	4	0	<0.017	<0.018	0
Pesticides Alpha-HCH	P003	0.1 µg/l	4	0	<0.005	<0.006	0
Pesticides Atrazine	P004	0.1 µg/l	3	0	<0.004	<0.005	0
Pesticides Boscalid	P231	0.1 µg/l	4	0	<0.009	<0.011	0
Pesticides Carbetamide	P010	0.1 µg/l	4	0	<0.008	<0.01	0
Pesticides Chlormequat	P163	0.1 µg/l	4	0	<0.003	<0.003	0
Pesticides Chlorpyrifos (Chlorpyriphos Ethyl)	Po17	0.1 µg/l	4	0	<0.016	<0.016	0
Pesticides Chlortoluron	P014	0.1 µg/l	3	0	<0.006	<0.014	0
Pesticides Clopyralid	P018	0.1 µg/l	4	0	<0.011	<0.015	0
Pesticides Dicamba	P025	0.1 µg/l	4	0	<0.012	<0.014	0
Pesticides Diuron	P032	0.1 µg/l	4	0	<0.009	<0.01	0
Pesticides Flufenacet	P230	0.1 µg/l	4	0	<0.008	<0.009	0
Pesticides Fluroxypyr	P040	0.1 µg/l	4	0	<0.009	<0.012	0
Pesticides Flutriafol	P039	0.1 µg/l	4	0	<0.005	<0.005	0
Pesticides Gamma-HCH (Lindane)	P041	0.1 µg/l	4	0	<0.005	<0.006	0
Pesticides Glyphosate	P042	0.1 µg/l	4	0	<0.005	<0.005	0
Pesticides Isoproturon	P048	0.1 µg/l	3	0	<0.005	<0.006	0
Pesticides Linuron	P051	0.1 µg/l	4	0	<0.007	<0.012	0
Pesticides MCPA 4-chloro-o-tolyloxyacetic acid	P054	0.1 µg/l	4	0	<0.008	<0.012	0
Pesticides MCPB	P055	0.1 µg/l	4	0	<0.018	<0.018	0
Pesticides MCPP (Mecoprop)	P053	0.1 µg/l	4	0	<0.007	<0.009	0
Pesticides Metazachlor	P203	0.1 µg/l	4	0	<0.006	<0.007	0
Pesticides Methiocarb	P056	0.1 µg/l	4	0	<0.007	<0.008	0
Pesticides Prometryne	p)70	0.1 µg/l	4	0	<0.004	<0.005	0
Pesticides Propazine	P066	0.1 µg/l	3	0	<0.004	<0.007	0
Pesticides Propyzamide	P071	0.1 µg/l	4	0	<0.007	<0.009	0
Pesticides Quinmerac	P244	0.1 µg/l	4	0	<0.006	<0.007	0
Pesticides Simazine	P073	0.1 µg/l	3	0	<0.004	<0.005	0
Pesticides Tri-allate	P079	0.1 µg/l	2	0	<0.006	<0.006	0
Pesticides Triclopyr	P131	0.1 µg/l	4	0	<0.015	<0.028	0
Polycyclic Aromatic Hydrocarbons (Total by Calculation)	B011F	0.1 µg/l	211	0	0	0.00288	0
Selenium (Total)	B009	10 µg Se/l	215	0	<0.08	1.1636	0
Trichloroethene & Tetrachloroethene – Sum Of 2 Substances (Total by Calculation)	D009B	10 µg/l	4	0	0.85	0.85	0
Trihalomethanes (Total by Calculation)	D011	100 µg/l	215	0	0.46316	58.1232	0
Totals			6,704	3

Table 10: Quality of water at consumer’s tap (zones) – National Standards

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests Failed	1 percentile (representing a minimum)	99 percentile (representing a maximum)	No. of zones failing standard
Aluminium (Total)	A021	200 µg Al/l	4,383	0	<6	34.028	0
Colour	A001	20 mg/l Pt/Co	4,917	0	<0.68	2.3	0
Iron (Total)	A022	200 µg Fe/l	4,383	6	<7	78.16	6
Manganese (Total)	A023	50 µg Mn/l	4,383	0	<3	3.716	0
Odour	A003	0 Dilution number at 25°C	4,920	41	0	0	32
Sodium (Total)	A009	200 mg Na/l	1,340	0	9.4505	81.272	0
Taste (Taste Quant)	A004	0 Dilution number at 25°C	4,917	16	0	0	17
Tetrachloromethane (Total)	D008	3 µg/l	51	0	<0.081	<0.313	0
Turbidity	A002	4 NTU	4,917	0	<0.09	<0.313	0
Totals			34,211	63

Table 11: Quality of water at consumer’s tap (zones) – Additional Monitoring Requirements

Parameter Name	Parameter Code	Prescribed Concentration or Value	Total Number of Tests	Tests exceeding specification	1 percentile (representing a minimum)	99 percentile (representing a maximum)
Ammonium (Total)	A014	0.5 mg NH4/l	2,894	0	<0.14	0.26205
Chloride	D002A	250 mg Cl/l	51	0	<6.83	82
Clostridum Perfringens (Sulphite-reducing Clostridia) (Confirmed)	C004A	0 number/100 ml	51	0	0	0
Coliform Bacteria (Indicator)	C001A	0 number/100 ml	13,123	29	0	0
Colony Counts After 3 Days At 22øc (Colony Counts)	C007	No abnormal change	4,916	N/A	0	22
Conductivity (Electrical Conductivity)	D001	2500 µS/cm at 20°C	1,912	0	283.39	747.87
Hydrogen ion (pH) – Indicator (Hydrogen ion) (pH)	A006	6.5 – 9.5 pH Value	3,373	0	6.9	7.7
Residual Disinfectant – Total	C010	No abnormal change	9,665	N/A	0.09	0.98
Sulphate	A007	250 mg SO4/l	767	0	<11	118.32
Total Organic Carbon	A017	No abnormal change	675	N/A	<0.4	4.1
Totals			34,984	17