FOURTEENTH CONGRESS OF THE REPUBLIC) 
OF THE PHILIPPINES 
SENATE 
Introduced by Senator Miriam Defensor Santiago 
EXPLANATORY NOTE 
According to Article 11, Section 16 of the 1987 Constitution: 
“The State shall protect and advance the right of the people to a balanced and healthful 
ecology in accord with the rhythm and harmony of nature. ‘‘ 
Clean, safe, potable water is indispensable to our state and society. Because of natural 
conditions and the quantities consumed, its supply is often publicly exposed and readily 
accessible to those who might wish to cause mass harm to a society. Because of its critical 
nature, when even a few days interruption in its supply could be cataclysmic, it is a highly 
attractive target to terrorists. As a result, special precautions and targeted measures need to be 
taken to protect and defend this precious resource. 
This bill would severely punish the poisoning 0; adulteration of a water supply and will 
send a strong message that we will take whatever strong measures are necessary to protect our 
citizens. 


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FOURTEENTH CONGRESS OF THE REPUBLIC) 
OF THE PHILIPPINES 
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Third Regular Session 
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Introduced by Senator Miriam Defensor Santiago 
AN ACT PUNISHING THE DEFILEMENT OF WATER SUPPLY 
Be it enacted by the Senate and House of Representatives of the Philippines in Congress 
assembled: 
SECTION 1. Dejinition. As used in this Act: 
(A) “Water Supply” means any public or private transmission facility, source of supply facility, 
well or reservoir, which provides potable water for residential, commercial, industrial and/or fire 
service needs. 
(B) “Defiling Agent” means any chemical, biological, or radioactive agent or substance, which is 
capable, when introduced or placed into a water supply, of ‘causing sickness, physical injury, 
severe disfigurement, or death of a human being, or causing irreparable harm to such water 
supply, or causing a disturbance to the public peace. 
SECTION 2. Crime. A person is guilty of unlawful defilement of water when he 
intentionally introduces, places, or causes to be introduced or placed into a water supply, a 
defiling agent with the intent to cause the sickness, physical injury, severe disfigurement or death 
of another human being, or with reckless disregard of causing sickness, physical injury, severe 
disfigurement, or death of another human being, or with the intent to cause irreparable harm to 
such water supply, or to disturb the public peace. 
SECTION 3. Penalty. Any person violating this Act shall be penalized with 
imprisonment of not less than thirty years but not more than fifty years. A fine of not less than 
P1,000,000.00 but not more than P5,000,000.00 shall also be imposed. 
SECTION 4. Repealing Clause. - All laws, decrees, orders, rules and regulations or 
parts thereof inconsistent with the provisions of this Act are hereby repealed, amended or 
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modified accordingly. 
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SECTION 5. Effectivity Clause. - This Act shall take effect after fifteen (15) days 
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Approved, 
following its publication in the Official Gazette or in two (2) newspapers of general circulation. 
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