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Welcome

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Planning A Sampling Event of

Water and Wastewater

Nandar Nwe

MS.EAM-1

Mining Engineering Department, YTU

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IntroductionWhy do we need to collect a water sample?

What is meant by water quality?

Planning a Sampling EventLogisticCommunicationEquipmentOccupational health, safety and welfare

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Most water quality analyses cannot be done on site

What is meant by water quality?

Why do we need to collect a water sample?

Microbiological Quality

Physical Quality

Chemical Quality

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Microbiological Qualitythe presence of organisms that cannot be individually seen

by the naked eye, such as protozoa, bacteria and viruses

associated with the infectious water-borne diseases such as gastroenteritis and cholera

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Physical QualityRefers to water quality properties (such as conductivity, pH

and turbidity)

The physical quality mainly affects the aesthetic quality (taste, odour and appearance) of water.

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Chemical Qualitythe nature and concentration of dissolved substances (such as

organic and inorganic chemicals including metals).

certain concentration most chemicals (e.g. zinc, copper, manganese) may have negative health effects.

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Planning A Sampling EventA sampling event is important and will save time and reduce the

number of difficulties

Logistics

Communication

Equipment

Occupational health, safety and welfare

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Logistics (Basic Steps)

Review the monitoring planInform the client or property owner Discuss any problems Planning how and when will transport the

samples back to the laboratoryCheck all the equipment required and testFill out as much paperwork before sampling

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Communication

Need to get consult from laboratory

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EquipmentPaper work and record keeping

Navigational aids

Field testing meters

Sampling containers

Decontamination of sampling equipment

Esky or refrigerator

Camera

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Paper work and record keeping

Including sampling plan or schedule and map

Field Record Sheet

Other requirement paperwork (labels)

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Navigation Aids

Important to be able to accurately locate the sampling site for future reference

Global Positioning System(GPS) can be usedSampling Location be recorded on site map

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Field Testing Meters or Field MeasurementFollowing be measure in situ

• Dissolved oxygen(DO)

• Temperature

• Conductivity

• Redox (reduction/oxidation potential)

• Trubidity

• chlorine

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Sampling Containers

Wrong sampling equipment can affect the integrity of the sample

Important to use appropriate containers for each various parameter

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Decontamination of sampling equipment

Should be thoroughly cleaned Include detergents, ethanol, scrubbing brushes,

tap water, distilled water 10% of sodium hypochlorite solution for

microbiological samples

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Camera

Most type of samples required chillingCan be stored in esky or car refrigerator

Esky or refrigerator

Photo can show where simple taken and illustrate record on the field datasheet

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Occupational health, safety and welfare

Typical hazards in the sampling include

Vehicle breakdown or accident, bogging in wet condition

Exposure to hazardous sample preparation

Temperature hazard, typically sunburn and heatstroke

Poisonous animals and plants

Also emergency procedures need to prepare

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ReferencesEPA GuidelineHandbook for sampling and Sample Preservation

of water and Wastewater

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Thank You!