Sk Sg. Siong Soil Test

8/7/2019 Sk Sg. Siong Soil Test

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Resistivity 2-D Survey

School : SK Sg. SiongDistrict : SibuSurvey Date : 24 th and 25 th January 2010Prepared by : Kevin Carradine ak Atet and Mohd SazalyBasarianChecked by : 1. Mohd. Rizal Abd. Rashid

2. Khairul Rizzal Roslan

Figure 1. SK. Sg. Siong survey layout plan

Dininghall

Pumphouse

Quarters

Toilet

Football field

Classroom

Q u a r t e r s

Q u a r t e r s

Q u a r t e r s

ToiletWater tank

Tank 3

Tank 2

ExistingTubewell

Tank 1

C l a s s r o o m

S m

a l l r o c k y r o a d

School gate

School gate

0m

400m

0m400m

0m200m

0m 400m

0m

200m 0m

200m

Line 1

Line 2

Line 3

Line 4

Line 5

Line 6


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RESULT AND INTERPRETATIONSK SG. SIONG, SIBU

LINE 1: POLE DIPOLE LS ARRAY

Figure 2: Pseudosection profile for Line 1

Figure 3: Pseudosection profile for Line 1 with topography.

sand Clayey sandmixture


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This survey line was stretched 400 metres and cut across the football field of SK Sg. Siong. The surface ismainly covered by clayey sand mixture. Underneath the football field shows high resistivity indicate sandon the subsurface.RESULTS AND INTERPRETATION

SK SG. SIONG, SIBULINE 2: POLE DIPOLE LS ARRAY

Figure 4: Pseudosection profile for Line 2.


Clayey sand

Saturated zone


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This survey line intersects with line 1 and parallel to the nearby river. Penetration depth is up to 140.7metres. Clayey sand is found at depth 17.9 metres until 140.7 metres. Saturated zone is believed to get itsrecharge from the nearby river.RESULTS AND INTERPRETATION

SK SG. SIONG, SIBULINE 3: POLE DIPOLE S ARRAY



Intersect withLine 5



bedrock Saturated zone


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This survey line intersects line 1, line 5 and line 6. Its penetration depth is up to 87.9 metres. From thispseudosection, underneath this survey line is mostly clayey sand (dark blue to dark green in colour).

RESULTS AND INTERPRETATIONSK SG. SIONG, SIBU

LINE 4: POLE DIPOLE S ARRAY



Intersect with

Line 5

Intersect with

Line 1Intersect withLine 6

Saturated zone


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This survey line intersects line 5, line 1 and line 6. Generally this area is covered by clay and sand mixture.

RESULTS AND INTERPRETATIONSK SG. SIONG, SIBU




Saturated area




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This survey line lies across the football field parallel to Line 1. Subsurface penetration is up to 77.5 metres.Subsurface features here is mainly covered by clayey sand (light green to dark green in colour).RESULTS AND INTERPRETATION




Intersect with

Line 3


Saturated zone


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This survey line is set up parallel to the line 1 and line 5. Subsurface penetration is up to 87.9 metres andits feature here is mainly covered by clayey sand (light green to dark green in colour). This line proves thatunderneath school area have potential for fresh groundwater.TUBEWELL PROPOSAL


Figure 14: Pseudosection profile for tubewell proposal at Line 6.

Site Resistivity (m)Water TypePosibilities Survey Line

ProposedTubewell (Along

Survey Line)

Depth of Tubewell

SK Sg. Siong,Sibu 10 - 120 Groundwater (fresh)

Line 6PDP4S

85 mN 0227.56.8E11157.14.8

40 m 50 m

Proposed Tubewell (PW1)

N 0227.56.8E11157.14.8


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TUBEWELL PROPOSALSK SG. SIONG, SIBU


Figure 16: Pseudosection profile for tubewell proposal at line 3.

Site Resistivity (m)Water TypePosibilities Survey Line

ProposedTubewell (Along

Survey Line)

Depth of Tubewell

SK Sg. Siong,Sibu 10 - 120 Groundwater (fresh)

Line 3PDP4S

115 mN 0227.56.2E 11157.13.3

50 m 60 m

Interpretation:All of this line provides a visible data in search for fresh groundwater. Resistivity value from 10m to120m (blue colour to green colour) in pseudosection indicate there is fresh groundwater underneath.

Comment:

Proposed Tubewell (PW3)

N 0227.56.2E 11157.13.3


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Existing tubewell cannot yield enough water since its screen pipe has collapsed. Proposed well is located40 meters from existing tubewell.


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SITE PHOTOS

School Signboard

Terrameter SAS4000 setup

Remote Cable Layout

Documents

Sk Sg. Siong Soil Test