LNW (Leep Networks Water)

Report Data Range: For the whole year 2021

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

117

0

<0.16

<0.16

0

Antimony

B008A

5 µg Sb/l

117

0

0.0536

0.4864

0

Arsenic (Total)

B001A

10 µg As/l

117

0

0.1418

1.3564

0

Benzene (Total)

F002

1 µg/l

117

0

<0.06

<0.06

0

Benzo[a]Pyrene (Total)

D007

0.01 µg/l

117

0

<0.00057

<0.00285

0

Boron

D005A

1 mg B/l

117

0

<0.0319

<0.081938

0

Bromate

F003

10 µg BrO3/l

117

0

<0.15

4.24

0

Cadmium (Total)

B002

5 µg Cd/l

117

0

<0.01

<0.03

0

Chromium (Total)

B004

50 µg Cr/l

117

0

0.0418

5.7286

0

Copper (Total)

A024A

2 mg Cu/l

117

0

0.00035

0.59638

0

Cyanide (Total)

B003

50 µg CN/l

117

0

<5.5

19.28

0

E coli (faecal coliforms Confirmed)

C002

0 number/100 ml

348

0

0

0

0

Enterococci (Confirmed)

C003

0 number/100 ml

116

0

0

0

0

Fluoride (Total)

A027

1.5 mg F/l

117

0

<0.04

0.3064

0

Lead (10 – will apply 25.12.2013)

B007B

10 µg Pb/l

117

0

<0.04

4.6666

0

Mercury (Total)

B005

1 µg Hg/l 

117

0

<0.06

<0.06

0

Nickel (Total) 

B006A 

20 µg Ni/l

117

2

<0.18

141.06

2

Nitrate (Total)

A012

50 mg NO3/l

117

0

<2.11

41.552

0

Nitrite – Consumer’s Taps

A013A

0.5 mg NO2/l

117

0

<0.002

0.2008

0

Nitrite/Nitrate formula

A013C

1 mg/l

117

0

0

0.83892

0

Pesticides (Total by Calculation)

B010

0.5 µg/l

75

0

0

0.112

0

Pesticides 2 4-D

P020

0.1 µg/l

4

0

<0.012

<0.012

0

Pesticides Atrazine

P004

0.1 µg/l

17

0

<0.004

0.023

0

Pesticides Bentazone

P006

0.1 µg/l

4

0

<0.002

<0.004

0

Pesticides Carbendazim (Total)

P150

0.1 µg/l

4

0

<0.003

<0.003

0

Pesticides Carbetamide

P010

0.1 µg/l

4

0

<0.008

<0.01

0

Pesticides Clopyralid

P018

0.1 µg/l

13

0

<0.011

0.03

0

Pesticides Glyphosate

P042

0.1 µg/l

5

0

<0.005

<0.005

0

Pesticides MCPA 4-chloro-o-tolyloxyacetic acid

P054

0.1 µg/l

4

0

<0.008

<0.012

0

Pesticides MCPP (Mecoprop)

P053

0.1 µg/l

5

0

<0.007

<0.009

0

Pesticides Metaldehyde

P226

0.1 µg/l

68

0

<0.007

0.041

0

Pesticides Picloram (Total)

P122

0.1 µg/l

4

0

<0.013

<0.019

0

Pesticides Propyzamide

P071

0.1 µg/l

12

0

<0.007

<0.009

0

Pesticides Prosulfocarb

P243

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

Polycyclic Aromatic Hydrocarbons (Total by Calculation)

B011F

0.1 µg/l

117

0

0

0.001784

0

Selenium (Total)

B009

10 µg Se/l

117

0

0.1536

4.6078

0

Trichloroethene & Tetrachloroethene – Sum Of 2 Substances (Total by Calculation)

D009B

10 µg/l

117

0

0

1.8622

0

Trihalomethanes (Total by Calculation)

D011

100 µg/l

117

0

0

56.7778

0

Totals

3,265

2

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

117

0

<6.9

41.538

0

Colour

A001

20 mg/l Pt/Co

121

0

<2.9

<3.78

0

Iron (Total)

A022

200 µg Fe/l

117

0

<3.72

43.28

0

Manganese (Total)

A023

50 µg Mn/l

117

0

<0.3

2.412

0

Odour

A003

0 Dilution number at 25°C

120

1

0

0.79

1

Sodium (Total)

A009

200 mg Na/l

117

0

<0.77

45.048

0

Taste (Taste Quant)

A004

0 Dilution number at 25°C

120

0

0

0

0

Tetrachloromethane (Total)

D008

3 µg/l

117

0

<0.16

<0.16

0

Turbidity

A002

4 NTU

121

0

<0.13

0.4856

0

Totals

1,067

1

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

121

0

<0.008

0.20878

Chloride

D002A

250 mg Cl/l

117

0

5.908

63.698

Clostridum Perfringens (Sulphite-reducing Clostridia) (Confirmed)

C004A

0 number/100 ml

116

0

0

0

Coliform Bacteria (Indicator)

C001A

0 number/100 ml

348

0

0

0

Colony Counts After 3 Days At 22øc (Colony Counts)

C007

No abnormal change

120

N/A

0

157

Conductivity (Electrical Conductivity)

D001

2500 µS/cm at 20°C

121

0

73.442

756.12

Gross Alpha

F004

0.1 Bq/l

19

0

<0.012

0.092

Gross Beta

F005

1 Bq/l

19

0

0.019

0.189

Hydrogen ion (pH) – Indicator (Hydrogen ion) (pH)

A006

6.5 – 9.5 pH Value

121

0

6.9664

8.0112

Residual Disinfectant – Total

C010

No abnormal change

359

N/A

0.13

0.984

Sulphate

A007

250 mg SO4/l

117

0

<0.54

116.64

Total Organic Carbon

A017

No abnormal change

117

N/A

0.354

3.6

Tritium

F006

100 Bq/l

15

0

<5.6

5.69

Totals

1,710

0

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