Drinking Water Qualitity Control Unit (KMAM)
In the afternoon 2.30pm, we were briefed by PPKP Silva on water supply and drinking water control. After that, we followed him to a nearby auxilliary for water sampling.
Mission: Water sampling in District Kuala Muda
Objective: Monitoring of water supply in District Kuala Muda.
Description:
- Water flowed from its main source the river or lake to treatment plant outlet (TPO) and finally to services reservoir outlet (SRO) and auxiliary.
- Various treatments have done in TRO include the flocculation, oxidation,
sendimentation, filtration and chlorination.
- Water sampling usually done in SRO and auxiliary.
- There are 67 SRO (station) in District Kuala Muda.
- 7 treatment plants are available in District Kuala Muda.
- There are 4 parameter have to be measured in water sampling:
1. Parameter 1 includes the physical and microbiology test. It is done in weekly basis. For the physical test: PH (6.5-9), NTU (nephelometric turbidity units) < color="#33ffff">Location: Auxilliary nearby the old hospital (A012)
Date: 04.08.2008 4.15pm
Team: PPKP Silva together with a PKA and Group B members. (Water sampling is usually done by a PPKP and a PKA.)
Tool Used: water container, Whirl Pack, PH meter, Colorimeter, NTU meter, Soudogaz etc.
Procedure:
- Water from SRO or auxilliary was allowed to flow for 2-3 minutes.
- Water has been filled in three water containers. First water container for PH testing. A probe inserted in the 1st container and PH meter show the value in a short while.
- Second water container placed in NTU meter and it showed up the turbidity value.
- Third water container mixed with DPD (white powder reagent). The water changed its color into pink after the mixture occurred. It is then placed in the colorimeter and chlorine value shown on the monitor.
- Before the sample for bacteriology test was taken, tap water was heated by soudogaz in order to get ride of bacterial along the tap and pipe.
- Whirl pack has been used to collect bacteriology water sample. Technique of sterile opening and enclose the pack was applied. Water around 100ml has been filled in the Whirl pack.
- Detail of water sampling such as the date, time and location of water sampling was stated clearly on the whirl pack.
- Whirl pack has been kept in cool ice box with temperature of 4 to 10 Celsius in order to prevent microorganism from multiplication.
- Forms were filled and samples were sent to labs within 24 hours.
Reported by Helly Chai
THUMBS: (coming up)
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