FILE 23 POWER POINT GROUNDWATER CONSERVATION

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BY

DARSIHARJO, M.S., DR.

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GROUNDWATER CONSERVATION

AT COASTAL AREA

1. USAGE WATER POTENCY

A. WELL DEEPNESS ACCORDING

TO INTERFACE CONDITION

B. PUMP DEBIT DO NOT EXCEED

MAXIMUM

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3. DIFFUSION WELL

4. MAKING RIVER DAM

5. LIQUID CEMENT INJECTION

6. MANGROVE CONSERVATION

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MSL

Interface Water table

Ground Surface

hf

hs

ſs

ſf Ocean

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Ground surface

Rocks

Fresh Water Pump

Water Table

Saline Water

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Fresh Water Rocks

Ground Surface

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Fresh Water

Rocks Ground Surface

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House

Rocks Septic tank

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EXAMPLE

TOTAL AREA = 500 M

2 RAIN INTENSITY = 50 MM/HOUR

QUESTION:

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Saline

Fresh

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Saline

Fresh

Rocks Natural Level Dam

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Ocean

Saline water Fresh water

Continent

Cement liquid

Push

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Ocean

Saline water Fresh water

Continent

Mangrove

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Road

LIGHT AND OXYGEN DEMAND

O2

NO2

NO3 O3

Fertile rain

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>3 DAYS

RECYCLE WATER WASTE

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House

Well Grave _Soils

Fresh water

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Well

Septic tank

Road

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Well

Septic tank

Road

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Road

Well

Septic tank

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Pump

Water

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Pump

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MAKING WELL = Rp. 2.000.000 PER UNIT

ALL AREA = 36 x 2.000.000 = Rp. 72.000.000

MAKING JET PUMP = Rp. 50.000.000

MAKING SEPTIC TANK

= Rp. 1.000.000 PER UNIT

ALL AREA = 36 x 1.000.000 = Rp. 36.000.000

COLLECTIVE SEPTIC TANK

= Rp. 15.000.000

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