+3. Monitoring programmes shall also include an operational monitoring programme that provides rapid …

3. Monitoring programmes shall also include an operational monitoring programme that provides rapid …

3.

 Monitoring programmes shall also include an operational monitoring programme that provides rapid insight into operational performance and water quality problems and that allows rapid pre-planned remedial action. Such operational monitoring programmes shall be supply-specific, taking into account the outcomes of the identification of hazards and hazardous events and the risk assessment of the supply system, and shall be intended to confirm the effectiveness of all control measures in abstraction, treatment, distribution and storage.

The operational monitoring programme shall include the monitoring of the parameter ‘turbidity at the water supply plant’ in order to regularly control the efficacy of physical removal by filtration processes, in accordance with the reference values and frequencies indicated in the following table (not applicable for groundwater sources where turbidity is caused by iron and manganese):

Operational parameter

Reference value

turbidity at the water supply plant

0,3 NTU in 95 % of samples and none to exceed 1 NTU

Volume (m3) of water distributed or produced each day within a supply zone

Minimum frequency of sampling and analysis

≤ 1 000

Weekly

> 1 000 to ≤ 10 000

Daily

> 10 000

Continuous

The operational monitoring programme shall also include the monitoring of the following parameters in raw water to control the efficacy of the treatment processes against microbiological risks:

Operational parameter

Reference value

Unit

Notes

Somatic coliphages

50 (for raw water)

Plaque Forming Units (PFU)/100 ml

This parameter shall be measured if the risk assessment indicates that it is appropriate to do so. If it is found in raw water at concentrations > 50 PFU/100 ml, it should be analysed after steps of the treatment train in order to determine log removal by the barriers in place and to assess whether the risk of a breakthrough of pathogenic viruses is sufficiently under control.

1. Apžvalga

,

1.1 Nuorodos

1.2 Nustatyti reikalavimai

1.3 Susiję standartai

2. Nustatyti reikalavimai

Reikalavimai

3. Susiję standartai

Standartai
  • Builddate: 23.12.2020 00:00:00 -Doknr: CELEX:32020L2184
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