Ecosystems Research and Development Bureau

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    Date: 2019-08-27 15:35:47.516122


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    Date: 2019-08-28 08:10:16.754658


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    Date: 2019-09-24 08:58:18.075176

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Water Hyacinth Studies

Requested from ERDB by D. Carvajal at 03:35 PM on Aug 27, 2019.
Purpose: Thesis Research
Date of Coverage: 08/27/2019 - 08/27/2019
Tracking no: #DENRERDB-661367910981

Carvajal 03:35 PM, Aug 27, 2019

Good day! I would like to request for the following information that will serve as basis for my thesis paper:
- Data or studies regarding Water Hyacinth in the Philippines 
- Population Growth of Water Hyacinth (2015-2019)
- Data or Percentage of Water Hyacinth that can be used into making crafts (2015-2019)
- Solutions to maintain these invasive plant on the waterways
- Plans/Developments to research more about Water Hyacinth and its uses (for medicine, construction, crafts, etc.)
-  Institutions that conducted researches on Water Hyacinth

Thank you very much.

Beltran 08:10 AM, Aug 28, 2019

August 28, 2019

Dear Darlene,

Thank you for your request dated Aug 27, 2019 under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch, for Water Hyacinth Studies.

We received your request on Aug 27, 2019 and will respond on or before Sep 17, 2019 03:35:47 PM, in accordance with the Executive Order's implementing rules and regulations.

Should you have any questions regarding your request, kindly contact me using the reply function on the eFOI portal at, for request with ticket number #DENRERDB-661367910981.

Thank you.


Lourdes Tangkeko
FOI Officer

FERRER 08:58 AM, Sep 24, 2019

September 24, 2019

Dear Darlene Carvajal,


Thank you for your request dated Aug 27, 2019 03:35:47 PM under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch.

Your Request

You asked for Water Hyacinth Studies.

Please see attached for the response in your request.

If you are unhappy with this response to your FOI request, you may ask us to carry out an internal review of the response by writing to Benjamin E. Beltran/ Your review request should explain why you are dissatisfied with this response, and should be made within 15 calendar days from the date when you received this letter. We will complete the review and tell you the result within 30 calendar days from the date when we receive your review request.

If you are not satisfied with the result of the review, you then have the right to appeal to the Office of the President under Administrative Order No. 22 (s. 2011).

Thank you.


Dir. Sofio B. Quintana
FOI Receiving Officer

 Tecnical assistance or request on Water Hyacinth info 2.doc

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