Published by Laguna Lake Development Authority(DENRLLDA) on June 19, 2023.
Requested from LLDA by B. Requejo at 02:46 PM on
June 19, 2023.
Purpose: Evaluating the performance of a Water Treatment Plant abstracting water from Laguna de Bay
Date of Coverage: 01/01/1990 - 05/31/2023
Tracking no: #DENRLLDA-718127012834
B.REQUEJO
June 19, 2023, 2:46 p.m.
Dear LLDA,
I would like to kindly request available data on the water quality of Laguna de Bay from 1990 until the present, at least monthly average if possible.
Parameters may include Temperature, pH, Color, Turbidity, Biological Oxygen Demand (BOD), Dissolved Oxygen (DO), Total Suspended Solids (TSS), Nitrate, Phosphate, Chloride, Fecal Coliform, Heavy Metals, Oil and Grease, and other relevant parameters.
Please rest assured that information requested, once received, will be kept in strict confidence, and used only for out study.
Thank you very much!
P.MARIANO
June 21, 2023, 8:14 a.m.
June 21, 2023
Dear Benedict Requejo,
I refer to my letter of Jun 19, 2023 02:46:37 PM about your request under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch, for Historical Water Quality of Laguna de Bay from 1990.
In order for us to work further on your request, we need a little bit more information from you regarding your query. We would like to ask for the title of the research and its objective/purpose, as we will use them for documentation purposes. You may use the reply function on the eFOI portal at https://pcoomaster06292017150000-dot-efoi-ph.appspot.com/requests/aglzfmVmb2ktcGhyIgsSB0NvbnRlbnQiFURFTlJMTERBLTcxODEyNzAxMjgzNAw, for request with ticket number #DENRLLDA-718127012834, to respond.
During the period of us awaiting your reply, your request will be put on hold. If we do not receive a reply on or before Sep 13, 2023 12:12:53 AM, your request will be closed.
We hope to hear from you at the soonest possible time.
Thank you.
Respectfully,
Peter Jedel Mariano
FOI Officer
B.REQUEJO
June 21, 2023, 1:16 p.m.
Dear Mr. Peter Jedel Mariano,
Good day!
This is in relation to my request at the eFOI portal on April 28, 2023 with the title "Historical Water Quality of Laguna de Bay from 1990" and Tracking Number #DENRLLDA-718127012834
I am currently part of a team working on evaluating the performance of the Putatan Water Treatment Plant being operated by Maynilad Water Services, Inc. (MWSI) , and so in relation to this I would like to kindly request available data on the water quality of Laguna de Bay from 1990 until the present, at consistent sampling points along the lake and at least monthly average if possible.
Parameters may include Temperature, pH, Color, Turbidity, Biological Oxygen Demand (BOD), Dissolved Oxygen (DO), Total Suspended Solids (TSS), Nitrate, Phosphate, Chloride, Fecal Coliform, Heavy Metals, Oil and Grease, and other relevant parameters.
The information will allow us to benchmark the performance of the Putatan Water Treatment Plant based on the water quality of its source water.
Please rest assured that information requested, once received, will be kept in strict confidence, and used only for the evaluation.
Thank you very much!
Regards,
Benedict Requejo
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