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

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