Metropolitan Waterworks and Sewerage System Regulatory Office(MWSS)

Browse over 246 from this government agency

Go Back

REQUEST
SUBMITTED

You have submitted an FOI request

Date: Oct. 14, 2025, 4:50 p.m.

PROCESSING
REQUEST

Your request is already in review

Date: 2025-10-15 15:44:35.472888

REQUEST
SUCCESSFUL

Your request was successful

Date: 2025-10-28 10:45:43.760813

4

RATE YOUR
REQUEST

How was your request?

Historical Data on Physico-chemical Water Quality

Published by Metropolitan Waterworks and Sewerage System Regulatory Office(MWSS) on Oct. 14, 2025.
Requested from MWSS by R. Sy at 04:50 PM on Oct. 14, 2025.
Purpose: Senior high school practical research
Tracking no: #MWSS-113991681273

R.SY Oct. 14, 2025, 4:50 p.m.

Hi! I am humbly requesting the following data from 2014-2014: - Physico-chemical water quality testing (ideally daily, weekly, or monthly) in (1) Angat-Ipo-La Mesa Dam system, and (2) La Mesa Treatment Plants 1 and 2. Thank you!

F.OFFICER Oct. 15, 2025, 3:44 p.m.

Dear eFOI user,

To effectively address your request, we kindly request additional information from you. This will enable us to provide you with the best possible service. Specifically, we would like to confirm if the data on Water Quality that you are requesting covers the period from 2014 to 2024. Your prompt response will allow us to proceed with your request on time.

To respond to the request with ticket number #MWSS-113991681273, please use the reply function located on the eFOI portal at https://savethedatev211152018-dot-efoi-ph.appspot.com/requests/aglzfmVmb2ktcGhyIAsSB0NvbnRlbnQiE0ZPSVBNTy01OTM3NzM2Njg1NjcM.

You will have 60 calendar days from the time of response to provide the requested information. We kindly request that you respond as soon as possible.

Thank you.

Respectfully,

FOI Officer

Metropolitan Waterworks and Sewerage System Regulatory Office

R.SY Oct. 15, 2025, 9:39 p.m.

Good day! Yes, the data on physico-chemical water quality I am requesting is from 2014 to 2024. Thank you!

F.OFFICER Oct. 17, 2025, 2:02 p.m.

Dear eFOI user,

To effectively address your request, we kindly request additional information from you. This will enable us to provide you with the best possible service. Specifically, we would like to confirm whether the data you’re requesting covers the period from 2014 to 2024. Your prompt response will allow us to proceed with your request on time.

To respond to the request with ticket number #MWSS-113991681273, please use the reply function located on the eFOI portal at https://savethedatev211152018-dot-efoi-ph.appspot.com/requests/aglzfmVmb2ktcGhyIAsSB0NvbnRlbnQiE0ZPSVBNTy01OTM3NzM2Njg1NjcM.

You will have 60 calendar days from the time of response to provide the requested information. We kindly request that you respond as soon as possible.

Thank you.

Respectfully,

Foi Receiving Officer

FOI Officer

Metropolitan Waterworks and Sewerage System Regulatory Office

R.SY Oct. 19, 2025, 5:57 p.m.

Yes, the data I am requesting covers the period from 2014 to 2024. Thank you!

F.OFFICER Oct. 20, 2025, 1:10 p.m.

October 20, 2025 05:10 AM

Dear eFOI user,

Mabuhay!

Thank you for utilizing the eFOI portal (www.foi.gov.ph) and exercising your right to information under Executive Order No. 2, s. 2016 on Freedom of Information in the Executive Branch.

We have received your request on Historical Data on Physico-chemical Water Quality, dated Oct. 14, 2025. We will respond and process your request on or before Nov. 4, 2025, in compliance with the Executive Order’s implementing rules and regulations.

Should you have any questions regarding this request, kindly contact me using the reply function on the eFOI portal at ticket number #MWSS-113991681273.

Further, please be advised that this is a public site, and any information shared in this conversation thread will be visible to the public. Therefore, we kindly request that you refrain from disclosing any sensitive personal information or data in this thread.

Thank you.

Respectfully,

FOI Receiving Officer

Metropolitan Waterworks and Sewerage System Regulatory Office

M.LACISTE Oct. 28, 2025, 10:45 a.m.

Dear eFOI user,

Thank you for your request dated Oct. 14, 2025, made under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch.

You have requested the number of FOI Users from 2016 to the present.

I am pleased to inform you that your FOI request has been approved. Enclosed herewith, you will find a copy of the information you have requested.

Your feedback is important to us:

We would appreciate your feedback regarding your experience with our service. We kindly request a few minutes of your time to fill out the MWSS RO FOI Request Feedback Form through this link: https://forms.gle/xDNWx35CAP8h4MhM6

Your right to request a review:

If you are unhappy with the response to your FOI request, you may ask us to carry out an internal review of the response by writing to MWSS RO FOI Central Appeals and Review Committee at [email protected]. Your review request should explain why you are dissatisfied with the 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.

Should you remain unsatisfied with the review outcome, you retain the right to appeal to the Office of the President under Administrative Order No. 22 (s. 2011).

Thank you.

Respectfully,

Foi Receiving Officer

FOI Officer

Metropolitan Waterworks and Sewerage System Regulatory Office

Water Quality Historical Data - LMTP - Maricris T Laciste - [email protected]

Is this request offensive?

Requests for personal information and vexatious requests are not considered valid requests for Official Information.

If you believe this request is not suitable, you can report it for attention by the site administrators.