SES (SES Water)

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	2,049	0	<0.01	<0.01	0
Totals			2,049	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	2,049	0	0	0	0
Total Coliforms (Confirmed)	C001	0 number/100 ml	2,049	0	0	0	0
Totals			4,098	0

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	2,049	N/A	0	2
Residual Disinfectant – Total	C010	No abnormal change	2,049	N/A	0.215	1.14
Turbidity – Indicator	A002A	1 NTU	2,049	0	<0.06	0.2
Totals			6,147	0

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	1,808	0	0	0	0
Total Coliforms (Confirmed)	C001	0 number/100 ml	1,808	0	0	0	0
Totals:			3,616	0

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	1,808	N/A	0	772
Residual Disinfectant – Free	C009	No abnormal change	1,807	N/A	<0.04	0.82
Totals:			3,615	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
Bromate	F003	10 µg BrO3/l	53	0	<0.8	<0.8	0
Cyanide (Total)	B003	50 µg CN/l	53	0	<2	8.3	0
Fluoride (Total)	A027	1.5 mg F/l	53	0	<0.06	0.21	0
Mercury (Total)	B005	1 µg Hg/l	53	0	<0.04	0.05	0
Pesticides (Total by Calculation)	B010	0.5 µg/l	53	0	0	0.06	0
Pesticides 2 4-D	P020	0.1 µg/l	8	0	<0.003	<0.003	0
Pesticides Aldrin	P002	0.03 µg/l	53	0	<0.007	<0.007	0
Pesticides Atrazine	P004	0.1 µg/l	53	0	<0.004	0.035	0
Pesticides Azoxystrobin	P227	0.1 µg/l	53	0	<0.014	<0.014	0
Pesticides Bentazone	P231	0.1 µg/l	53	0	<0.01	<0.01	0
Pesticides Carbendazim (Total)	P150	0.1 µg/l	53	0	<0.004	<0.004	0
Pesticides Carbetamide	P010	0.1 µg/l	53	0	<0.004	0.006	0
Pesticides Chlortoluron	P014	0.1 µg/l	53	0	<0.003	<0.003	0
Pesticides Clopyralid	P018	0.03 µg/l	8	0	0.013	0.021	0
Pesticides Dieldrin	P028	0.03 µg/l	53	0	<0.007	<0.007	0
Pesticides Diflufenican	P157	0.1 µg/l	53	0	<0.005	<0.005	0
Pesticides Dimethenamid	P245	0.1 µg/l	53	0	<0.005	<0.005	0
Pesticides Diuron	P032	0.1 µg/l	53	0	<0.006	<0.006	0
Pesticides Epoxyconazole	P217	0.1 µg/l	53	0	<0.007	<0.007	0
Pesticides Flufenacet	P230	0.1 µg/l	53	0	<0.006	0.013	0
Pesticides Fluroxypyr	P040	0.1 µg/l	8	0	<0.003	<0.003	0
Pesticides Flutriafol	P039	0.1 µg/l	53	0	<0.004	<0.004	0
Pesticides Glyphosate	P042	0.1 µg/l	8	0	<0.005	<0.005	0
Pesticides Heptachlor	P043	0.03 µg/l	53	0	<0.008	<0.008	0
Pesticides Heptachlor Epoxide – Total (Trans, CIS) (Heptachlor Epoxide)	P044	0.03 µg/l	53	0	<0.005	<0.005	0
Pesticides Isoproturon	P048	0.1 µg/l	53	0	<0.005	<0.005	0
Pesticides MCPA 4-chloro-o-tolyloxyacetic acid	P054	0.1 µg/l	8	0	<0.004	<0.004	0
Pesticides MCPP (Mecoprop)	P053	0.1 µg/l	8	0	<0.002	<0.002	0
Pesticides Metaldehyde	P226	0.1 µg/l	21	0	<0.01	0.02	0
Pesticides Metazachlor	P203	0.1 µg/l	53	0	<0.002	<0.002	0
Pesticides Methabenzthiazuron	P167	0.1 µg/l	53	0	<0.002	<0.002	0
Pesticides Pendimethalin	P118	0.1 µg/l	53	0	<0.009	<0.009	0
Pesticides Picloram (Total)	P122	0.1 µg/l	45	0	<0.004	0.012	0
Pesticides Propyzamide	P071	0.1 µg/l	53	0	<0.001	0.012	0
Pesticides Prosulfocarb	P243	0.1 µg/l	53	0	<0.001	<0.001	0
Pesticides Quinmerac	P244	0.1 µg/l	8	0	<0.004	<0.02	0
Pesticides Simazine	P073	0.1 µg/l	53	0	<0.007	0.016	0
Pesticides Tebuconazole	P177	0.1 µg/l	53	0	<0.004	<0.004	0
Pesticides Tri-allate	P079	0.1 µg/l	53	0	<0.01	<0.01	0
Pesticides Triclopyr	P131	0.1 µg/l	8	0	<0.003	<0.003	0
Totals			1,720	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	53	0	22.7	50.2
Clostridium Perfringens (Sulphite-reducing Clostridia) (Confirmed)	C004A	0 number/100 ml	53	0	0	0
Conductivity (Electrical Conductivity)	D001	2500 µS/cm at 20°C	672	0	314.73	572.27
Gross Alpha	F004	0.1 Bq/l	8	0	0.03	0.09
Gross Beta	F005	1 Bq/l	8	0	<0.28	<0.28
Sulphate	A007	250 mg SO4/l	53	0	15.2	93.5
Total Organic Carbon	A017	No abnormal change	53	N/A	0.32	4.4
Totals			900	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	160	0	<0.08	<0.08	0
Antimony	B008A	5 µg Sb/l	160	0	<0.09	0.37	0
Arsenic (Total)	B001A	10 µg As/l	160	0	<0.15	0.58	0
Benzene (Total)	F002	1 µg/l	160	0	<0.01	0.0139	0
Benzo[a]Pyrene (Total)	D007	0.01 µg/l	160	0	<0.001	<0.001	0
Boron	D005A	1 mg B/l	160	0	<0.04	0.08	0
Cadmium (Total)	B002	5 µg Cd/l	160	0	<0.06	0.1639	0
Chromium (Total)	B004	50 µg Cr/l	160	0	<0.8	1.2	0
Copper (Total)	A024A	2 mg Cu/l	161	0	<0.03	0.267	0
E coli (faecal coliforms Confirmed)	C002	0 number/100 ml	1,872	0	0	0	0
Enterococci (Confirmed)	C003	0 number/100 ml	160	0	0	0	0
Lead (10 – will apply 25.12.2013)	B007B	10 µg Pb/l	160	0	<0.3	5.278	0
Nickel (Total)	B006A	20 µg Ni/l	160	1	0.6	21.57	0
Nitrate (Total)	A012	50 mg NO3/l	696	0	3.7	37.1	0
Nitrite – Consumer’s Taps	A013A	0.5 mg NO2/l	696	0	<0.01	0.25721	0
Nitrite/Nitrate formula	A013C	1 mg/l	696	0	0.1	0.7	0
Polycyclic Aromatic Hydrocarbons (Total by Calculation)	B011F	0.1 µg/l	160	0	0	0	0
Selenium (Total)	B009	10 µg Se/l	160	0	<0.27	1.3939	0
Trichloroethene & Tetrachloroethene – Sum Of 2 Substances (Total by Calculation)	D009B	10 µg/l	160	0	0	2.2812	0
Trihalomethanes (Total by Calculation)	D011	100 µg/l	160	0	1.161	55.463	0
Totals			6,521	1

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	423	0	<5	30.67	0
Colour	A001	20 mg/l Pt/Co	696	0	<1.6	4	0
Iron (Total)	A022	200 µg Fe/l	564	0	<6	52.7	0
Manganese (Total)	A023	50 µg Mn/l	432	0	<0.9	4.5	0
Odour	A003	0 Dilution number at 25°C	696	0	0	0	0
Sodium (Total)	A009	200 mg Na/l	160	0	12	27.39	0
Taste (Taste Quant)	A004	0 Dilution number at 25°C	696	0	0	0	0
Tetrachloromethane (Total)	D008	3 µg/l	160	0	<0.11	<0.11	0
Turbidity	A002	4 NTU	696	0	<0.06	0.4412	0
Totals			4,532	0

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	696	0	<0.02	0.18
Coliform Bacteria (Indicator)	C001A	0 number/100 ml	1,872	0	0	0
Colony Counts After 3 Days At 22øc (Colony Counts)	C007	No abnormal change	696	N/A	0	420
Hydrogen ion (pH) – Indicator (Hydrogen ion) (pH)	A006	6.5 – 9.5 pH Value	696	0	7.32	7.9
Residual Disinfectant – Total	C010	No abnormal change	1,872	N/A	<0.04	0.84
Totals			5,832	0