planning a sampling event of water and wastewater

May 3, 2023 1

Welcome

May 3, 2023 2

Planning A Sampling Event of

Water and Wastewater

Nandar Nwe

MS.EAM-1

Mining Engineering Department, YTU

May 3, 2023 3

IntroductionWhy do we need to collect a water sample?

What is meant by water quality?

Planning a Sampling EventLogisticCommunicationEquipmentOccupational health, safety and welfare

May 3, 2023 4

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

May 3, 2023 5

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

May 3, 2023 6

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.

May 3, 2023 7

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.

May 3, 2023 8

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

May 3, 2023 9

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

May 3, 2023 10

Communication

Need to get consult from laboratory

May 3, 2023 11

EquipmentPaper work and record keeping

Navigational aids

Field testing meters

Sampling containers

Decontamination of sampling equipment

Esky or refrigerator

Camera

May 3, 2023 12

Paper work and record keeping

Including sampling plan or schedule and map

Field Record Sheet

Other requirement paperwork (labels)

May 3, 2023 13

May 3, 2023 14

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

May 3, 2023 15

Field Testing Meters or Field MeasurementFollowing be measure in situ

• Dissolved oxygen(DO)

• Temperature

• Conductivity

• Redox (reduction/oxidation potential)

• Trubidity

• chlorine

May 3, 2023 16

May 3, 2023 17

Sampling Containers

Wrong sampling equipment can affect the integrity of the sample

Important to use appropriate containers for each various parameter

May 3, 2023 18

May 3, 2023 19

May 3, 2023 20

May 3, 2023 21

May 3, 2023 22

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

May 3, 2023 23

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

May 3, 2023 24

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

May 3, 2023 25

May 3, 2023 26

ReferencesEPA GuidelineHandbook for sampling and Sample Preservation

of water and Wastewater

May 3, 2023 27

Thank You!