Department of Environment and Natural Resources

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    Date: 2022-09-20 12:21:44.756068


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    Date: 2022-09-20 13:10:45.510001

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Data on Water Hyacinth and Waste on Pasig River

Requested from DENR by J. Caberte at 12:21 PM on Sep 20, 2022.
Purpose: Architecture Thesis
Date of Coverage: 01/01/2019 - 08/11/2022
Tracking no: #DENR-794574212453

Caberte 12:21 PM, Sep 20, 2022

Good day!

I would only like to ask if there exists a new/updated file of the previous 2019 PRRC Water Hyacinth Control Guidelines
In line with my architecture thesis, I'd also like to ask of the following data:

1.) Seasonal/monthly volume of Water Hyacinth (during rainy and dry seasons)

2.) Needed/Required Water Hyacinth Harvester Boats to sufficiently control water Hyacinth

3.) Latest Waste/trash volume in Pasig River

3.) Equipment, space allocation/design requirements for Water Hyacinth processing for Handicrafts/charcoal briquettes

4.) Source location of Water Hyacinth growth

DE LAYOLA 01:10 PM, Sep 20, 2022

Sep 20, 2022

Dear JR Caberte,

Thank you for your request dated Sep 20, 2022 12:21:44 PM under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch, for Data on Water Hyacinth and Waste on Pasig River.

We received your request on Sep 20, 2022 12:21:44 PM and we have forwarded your request to another agency.

Should you have any questions regarding your request, kindly contact using the reply function on the eFOI portal at, for request with ticket number #DENR-794574212453.

As part of our evaluation of our services, we would like you to completely and honestly answer our client request  feedback at

Thank you.

JOCELYN B. DE LAYOLA                                                                                                                                          FOI Officer/OIC-Chief
Records Management Division
DENR Central Office
Tel. No. (02) 8926-8079
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