ANH (Anglian Water Services Ltd)

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	4,317	0	<0.03	<0.03	0
Totals			4,317	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	21,200	1	0	0	1
Total Coliforms (Confirmed)	C001	0 number/100 ml	21,200	8	0	0	7
Totals			42,400	9

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	21,215	N/A	0	2
Residual Disinfectant – Free	C009	No abnormal change	21,411	N/A	<0.05	1.28
Residual Disinfectant – Total	C010	No abnormal change	21,411	N/A	0.35	1.5788
Turbidity – Indicator	A002A	1 NTU	21,211	1	<0.09	0.24
Totals			85,248	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	16,265	0	0	0	0
Total Coliforms (Confirmed)	C001	0 number/100 ml	16,265	11	0	0	0
Totals:			32,530	11

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	16,290	N/A	0	32
Residual Disinfectant – Free	C009	No abnormal change	16,290	N/A	0	32
Residual Disinfectant – Total	C010	No abnormal change	16,295	N/A	0.12	1.03
Totals:			48,880	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	1,162	0	<0.079	<0.433	0
Benzene (Total)	F002	1 µg/l	1,164	0	<0.041	<0.183	0
Boron	D005A	1 mg B/l	1,152	0	<0.04332	0.18	0
Bromate	F003	10 µg BrO3/l	1,154	0	<0.35	2.7305	0
Cyanide (Total)	B003	50 µg CN/l	605	0	<3.333	<3.333	0
Mercury (Total)	B005	1 µg Hg/l	519	0	<0.097	<0.097	0
Pesticides (Total by Calculation)	B010	0.5 µg/l	1,044	0	0	0.083	0
Pesticides 2 4-D	P020	0.1 µg/l	157	0	<0.01	<0.01	0
Pesticides Aldrin	P002	0.03 µg/l	52	0	<0.003	<0.003	0
Pesticides Atrazine	P004	0.1 µg/l	259	0	<0.004	0.018	0
Pesticides Azoxystrobin	P227	0.1 µg/l	53	0	<0.002	0.003	0
Pesticides Benazolin (Total)	P138	0.1 µg/l	60	0	<0.01	<0.01	0
Pesticides Bentazone	P006	0.1 µg/l	668	0	<0.008	<0.008	0
Pesticides Boscalid	P231	0.1 µg/l	16	0	<0.003	0.004	0
Pesticides Bromacil	P086	0.1 µg/l	106	0	<0.006	<0.006	0
Pesticides Bromoxynil	P008	0.1 µg/l	9	0	<0.01	<0.01	0
Pesticides Carbetamide	P010	0.1 µg/l	229	0	<0.014	<0.014	0
Pesticides Chloridazon	P162	0.1 µg/l	101	0	<0.012	<0.012	0
Pesticides Chlormequat	P163	0.1 µg/l	4	0	<0.005	<0.005	0
Pesticides Chlortoluron	P014	0.1 µg/l	59	0	<0.01	<0.01	0
Pesticides Clopyralid	P018	0.1 µg/l	437	0	<0.018	0.03148	0
Pesticides Cyanazine	P092	0.1 µg/l	9	0	<0.008	<0.008	0
Pesticides Cyproconazole	P207	0.1 µg/l	15	0	<0.003	<0.003	0
Pesticides Dicamba	P025	0.1 µg/l	8	0	<0.017	<0.017	0
Pesticides Dichlorprop	P026	0.1 µg/l	17	0	<0.004	0.005	0
Pesticides Dieldrin	P028	0.03 µg/l	51	0	<0.003	<0.003	0
Pesticides Diuron	P032	0.1 µg/l	73	0	<0.013	<0.013	0
Pesticides Ethofumersate	P221	0.1 µg/l	586	0	<0.006	<0.006	0
Pesticides Fenpropidin	P168	0.1 µg/l	9	0	<0.011	<0.012	0
Pesticides Flufenacet	P230	0.1 µg/l	163	0	<0.003	0.02236	0
Pesticides Fluroxypyr	P040	0.1 µg/l	325	0	<0.02	<0.02	0
Pesticides Glyphosate	P042	0.1 µg/l	347	0	<0.007	0.01504	0
Pesticides Heptachlor	P043	0.03 µg/l	52	0	<0.002	<0.002	0
Pesticides Heptachlor Epoxide – Total (Trans, CIS) (Heptachlor Epoxide)	P044	0.03 µg/l	52	0	<0.003	<0.003	0
Pesticides Isoproturon	P048	0.1 µg/l	125	0	<0.006	<0.006	0
Pesticides Lenacil	P109	0.1 µg/l	71	0	<0.002	0.065	0
Pesticides Malathion	P052	0.1 µg/l	9	0	<0.007	0.077	0
Pesticides MCPA 4-chloro-o-tolyloxyacetic acid	P054	0.1 µg/l	138	0	<0.008	<0.008	0
Pesticides MCPB	P055	0.1 µg/l	16	0	<0.006	<0.006	0
Pesticides MCPP (Mecoprop)	P053	0.1 µg/l	237	0	<0.006	0.02126	0
Pesticides Metalaxyl	P209	0.1 µg/l	9	0	<0.01	<0.012	0
Pesticides Metaldehyde	P226	0.1 µg/l	573	0	<0.008	0.04726	0
Pesticides Metamitron	P194	0.1 µg/l	43	0	<0.017	<0.017	0
Pesticides Metazachlor	P203	0.1 µg/l	104	0	<0.002	<0.03	0
Pesticides Metribuzin	P152	0.1 µg/l	9	0	<0.008	<0.008	0
Pesticides Monuron	P113	0.1 µg/l	32	0	<0.012	<0.012	0
Pesticides Pentachlorophenol	P060	0.1 µg/l	6	0	0.006	<0.007	0
Pesticides Pirimicarb	P064	0.1 µg/l	10	0	<0.007	<0.008	0
Pesticides Propamocarb	P238	0.1 µg/l	8	0	<0.001	<0.001	0
Pesticides Propyzamide	P071	0.1 µg/l	341	0	<0.004	0.03964	0
Pesticides Prosulfocarb	P243	0.1 µg/l	158	0	<0.00359	0.005	0
Pesticides Quinmerac	P224	0.1 µg/l	274	0	<0.013	0.015
Pesticides Simazine	P073	0.1 µg/l	308	0	<0.01	0.01491	0
Pesticides Tebuconazole	P177	0.1 µg/l	26	0	<0.004	<0.004	0
Pesticides Terbutryn	P077	0.1 µg/l	43	0	<0.01	<0.01	0
Pesticides Triclopyr	P131	0.1 µg/l	31	0	<0.012	<0.012	0
Pesticides Trietazine	P132	0.1 µg/l	42	0	<0.016	<0.016	0
Radon	F031	100 Bq/l	8	0	<1	1.2	0
Trichloroethene & Tetrachloroethene – Sum Of 2 Substances (Total by Calculation)	D009B	10 µg/l	1,198	0	0	1.6618	0
Totals			14,531	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	1,157	0	<0.081	0.33186	0
Totals			1,157	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	1,153	0	13.754	132
Clostridum Perfringens (Sulphite-reducing Clostridia) (Confirmed)	C004A	0 number/100 ml	1,152	0	0	0
Conductivity (Electrical Conductivity)	D001	2500 µS/cm at 20°C	5,119	0	321.6	1006.8
Gross Alpha	F004	0.1 Bq/l	22	1	<0.02	0.236
Gross Beta	F005	1 Bq/l	22	0	<0.054	0.197
Sulphate	A007	250 mg SO4/l	1,152	0	<14.5	172
Total Organic Carbon	A017	No abnormal change	1,153	N/A	0.6708	3.9014
Tritium	F006	100 Bq/l	16	0	5.79	<6
Totals			9,789	1

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	51	0	<0.79	<0.433	0
Antimony	B008A	5 µg Sb/l	1,340	0	<0.086	0.49	0
Arsenic (Total)	B001A	10 µg As/l	1,340	0	<0.157	3.3959	0
Benzene (Total)	F002	1 µg/l	50	0	<0.041	<0.183	0
Benzo[a]Pyrene (Total)	D007	0.01 µg/l	1,336	0	<0.002	<0.002	0
Boron	D005A	1 mg B/l	51	0	<0.04332	0.451	0
Bromate	F003	10 µg BrO3/l	148	0	<0.35	3.168	0
Cadmium (Total)	B002	5 µg Cd/l	1,340	0	<0.025	<0.063	0
Chromium (Total)	B004	50 µg Cr/l	1,343	0	<0.293	1.056	0
Copper (Total)	A024A	2 mg Cu/l	1,339	0	0.00394	0.7494	0
Cyanide (Total)	B003	50 µg CN/l	51	0	<3.333	<3.333	0
E coli (faecal coliforms Confirmed)	C002	0 number/100 ml	13,123	4	0	0	4
Enterococci (Confirmed)	C003	0 number/100 ml	1,341	0	0	0	0
Fluoride (Fluoridated)	A027A	1.2 mg F/l	222	106	0.10692	1.08185	26
Fluoride (Total)	A027	1.5 mg F/l	1,340	0	0.09541	1.29177	0
Lead (10 – will apply 25.12.2013)	B007B	10 µg Pb/l	1,340	2	<0.133	7.0159	2
Mercury (Total)	B005	1 µg Hg/l	51	0	<0.097	<0.097	0
Nickel (Total)	B006A	20 µg Ni/l	1,339	8	<0.613	14.36	7
Nitrate (Total)	A012	50 mg NO3/l	2,893	0	<7.526	42	0
Nitrite – Consumer’s Taps	A013A	0.5 mg NO2/l	2,893	0	<0.03	0.255	0
Nitrite/Nitrate formula	A013C	1 mg/l	2,893	0	0	0.84212	0
Pesticides (Total by Calculation)	B010	0.5 µg/l	47	0	0	0.07	0
Pesticides 2 4-D	P020	0.1 µg/l	1	0	<0.01	<0.01	0
Pesticides 2 4-DB	P082	0.1 µg/l	1	0	<0.008	<0.008	0
Pesticides Aldrin	P002	0.03 µg/l	30	0	<0.003	<0.003	0
Pesticides Atrazine	P004	0.1 µg/l	13	0	<0.004	0.023	0
Pesticides Benazolin (Total)	P138	0.1 µg/l	1	0	<0.01	<0.01	0
Pesticides Bentazone	P006	0.1 µg/l	5	0	<0.008	<0.008	0
Pesticides Bromacil	P086	0.1 µg/l	4	0	<0.006	<0.006	0
Pesticides Carbetamide	P010	0.1 µg/l	7	0	<0.014	<0.014	0
Pesticides Chlorfenvinphos	P013	0.1 µg/l	1	0	<0.007	<0.007	0
Pesticides Chloridazon	P162	0.1 µg/l	1	0	<0.012	<0.012	0
Pesticides Chlormequat	P163	0.1 µg/l	1	0	<0.005	<0.005	0
Pesticides Chlorothalonil	P015	0.1 µg/l	1	0	<0.01	<0.01	0
Pesticides Chlortoluron	P014	0.1 µg/l	1	0	<0.01	<0.01	0
Pesticides Clopyralid	P018	0.1 µg/l	17	0	<0.018	0.022	0
Pesticides Cyanazine	P092	0.1 µg/l	1	0	<0.008	<0.008	0
Pesticides Dichlorprop	P026	0.1 µg/l	1	0	<0.004	<0.004	0
Pesticides Dieldrin	P028	0.03 µg/l	30	0	<0.003	<0.003	0
Pesticides Fluroxypyr	P040	0.1 µg/l	1	0	<0.02	<0.02	0
Pesticides Glyphosate	P042	0.1 µg/l	1	0	<0.007	<0.007	0
Pesticides Heptachlor	P043	0.03 µg/l	30	0	<0.002	<0.002	0
Pesticides Heptachlor Epoxide – Total (Trans, CIS) (Heptachlor Epoxide)	P044	0.03 µg/l	30	0	<0.003	<0.003	0
Pesticides Isoproturon	P048	0.1 µg/l	5	0	<0.006	<0.006	0
Pesticides Linuron	P051	0.1 µg/l	28	0	<0.014	<0.014	0
Pesticides MCPA 4-chloro-o-tolyloxyacetic acid	P054	0.1 µg/l	1	0	<0.008	<0.008	0
Pesticides MCPB	P055	0.1 µg/l	1	0	<0.006	<0.006	0
Pesticides MCPP (Mecoprop)	P053	0.1 µg/l	5	0	<0.006	<0.006	0
Pesticides Metaldehyde	P226	0.1 µg/l	18	0	<0.008	0.056	0
Pesticides Metamitron	P194	0.1 µg/l	1	0	<0.017	<0.017	0
Pesticides Metazachlor	P203	0.1 µg/l	1	0	<0.03	<0.03	0
Pesticides Monuron	P113	0.1 µg/l	28	0	<0.012	<0.012	0
Pesticides Pirimicarb	P064	0.1 µg/l	1	0	<0.007	<0.007	0
Pesticides Prometryne	P070	0.1 µg/l	1	0	<0.01	<0.01	0
Pesticides Propazine	P066	0.1 µg/l	1	0	<0.01	<0.01	0
Pesticides Propyzamide	P071	0.1 µg/l	7	0	<0.004	0.04	0
Pesticides Quinmerac	P244	0.1 µg/l	1	0	<0.013	<0.013	0
Pesticides Simazine	P073	0.1 µg/l	7	0	<0.01	<0.01	0
Pesticides Terbutryn	P077	0.1 µg/l	1	0	<0.01	<0.01	0
Pesticides Triclopyr	P131	0.1 µg/l	1	0	<0.012	<0.012	0
Pesticides Trietazine	P132	0.1 µg/l	28	0	<0.016	<0.016	0
Polycyclic Aromatic Hydrocarbons (Total by Calculation)	B011F	0.1 µg/l	1,337	0	0	0	0
Selenium (Total)	B009	10 µg Se/l	1,340	0	<0.722	3.5759	0
Trichloroethene & Tetrachloroethene – Sum Of 2 Substances (Total by Calculation)	D009B	10 µg/l	32	0	0	0	0
Trihalomethanes (Total by Calculation)	D011	100 µg/l	1,358	0	0	51.941	0
Totals			40,252	120

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
Gross Alpha	F004	0.1 Bq/l	8	0	<0.02	0.088
Gross Beta	F005	1 Bq/l	8	0	0.005	0.256
Hydrogen ion (pH) – Indicator (Hydrogen ion) (pH)	A006	6.5 – 9.5 pH Value	4,917	0	7.08	7.87
Residual Disinfectant – Free	C009	No abnormal change	13,246	N/A	<0.05	0.73
Residual Disinfectant – Total	C010	No abnormal change	13,245	N/A	0.11	1.13
Sulphate	A007	250 mg SO4/l	51	0	<14.5	124
Total Organic Carbon	A017	No abnormal change	9	0	<6	6.3
Tritium	F006	100 Bq/l	9	0	<6	6.3
Totals			54,482	29