Revision History

Rev.

Description of Modification

Date

1.

1st Issue

9/12/2024

2.

2nd Issue

11/12/2024

 

 

 

 

 

CONTENTS

Executive Summary............................................................................................................................................................ 1

1.          Basic Contract Information............................................................................................................................... 3

2.          Water Quality.......................................................................................................................................................... 8

3.          Waste....................................................................................................................................................................... 30

4.          Landfill Gas Monitoring................................................................................................................................... 31

5.          Landscape.............................................................................................................................................................. 35

6.          Ecology (Coral Monitoring)............................................................................................................................ 36

7.          Ecology (Fishery Monitoring)....................................................................................................................... 38

8.          Summary of Exceedance, Complaints, Notification of Summons and Prosecutions.............. 41

9.          EM&A Site Inspection....................................................................................................................................... 43

10.      Future Key Issues............................................................................................................................................... 44

11.      Conclusions and Recommendations.......................................................................................................... 45

 

 

Appendix A

Overview of Desalination Plant in Tseung Kwan O

Appendix B

Summary of Implementation Status of Environmental Mitigation

Appendix C

Impact Monitoring Schedule

Appendix D

Event/Action Plan

Appendix E

Water Quality Monitoring Equipment and Landfill Gas Equipment Calibration Certificate

Appendix F

Water Quality Monitoring Data and Landfill Gas Monitoring Data

Appendix G

Waste Flow Table

Appendix H

Ecology (Coral) Survey Report

Appendix I

Site Inspection Proforma

Appendix J

Complaint Log

Appendix K

Exceedance Report

 

 

 

 

 

Executive Summary

 

Introduction

 

A1. The Project, Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant (TKODP), is a Designated Project under the Environmental Impact Assessment Ordinance (Cap. 499) (EIAO) and is currently governed by a Further Environmental Permit (EP No. FEP - 01/503/2015/B) for the operation phase of the Contract.

A2. In accordance with the Environmental Monitoring and Audit (EM&A) Manual for the Contract, EM&A works for marine water quality, waste management and ecology should be carried out by Environmental Team (ET), Aurecon Hong Kong Limited (Aurecon), during the Tseung Kwan O Desalination Plant.

A3. The TKODP commenced the operation stage on 1 July 2024. This is the 5th Operation Phase Monthly EM&A Report, prepared by Aurecon, for the Contract summarizing the monitoring results and audit findings of the EM&A programme at and around Tseung Kwan O Area 137 (TKO 137) during first-year operation of Tseung Kwan O Desalination Plant in November 2024.

A4. The EM&A programme for this contract has covered environmental monitoring on water quality and Contractor’s environmental performance auditing in the aspects of dust, landfill gas, water quality, waste management, Landscape and Visual and Ecology.

Summary of exceedance & investigation & follow-up

 

WATER QUALITY MONITORING

 

A5. The EM&A works for operation phase marine water quality were conducted during the reporting period in accordance with the EM&A Manual. Seven (7) of SS obtained had exceeded the Action Level. Thirty-six (36) of SS obtained during the reporting period had exceeded the Limit Level.

A6. The EM&A works for continuous monitoring of effluent quality were conducted during the reporting period in accordance with the EM&A Manual. No exceedance of the sampling was obtained during the reporting period.

A7. The plant was shut down from 7 a.m. to 7 p.m. on 3 November 2024. No effluent discharge from TKODP occurred during this period.

A8. Due to the plant has suspended production, there was no effluent discharge from the TKODP during the period between 23 November 2024 at 9 p.m. and 30 November 2024.

Ecology Impact Monitoring

 

A9.      Monthly operation phase coral monitoring works was conducted on 11 November 2024. There is no AL/LL exceedance during the monitoring period.

 

A10. Operation phase fishery monitoring for wet season 2024 was carried out on 24 and 31 August 2024. The detail of the monitoring was presented in the 4th Operation Phase Monthly EM&A Report.

Landfill Gas Monitoring

 

A11. In this reporting period, monthly landfill gas monitoring was conducted on 14 and 15 November 2024. No exceedances of action level and limit level was observed.

Weekly Site Inspections

 

A12. In this reporting period, site inspections were carried out by ET on 5, 14, 18 and 26 November 2024. Joint site inspections of the operation work by ET were and IEC were carried out on 26 November 2024 to audit the mitigation measures implementation status.

Complaint Handling and Prosecution

 

A13. No environmental complaint, notification of summons and prosecution was received in the reporting period.

Reporting Change

 

A14. There was no change to be reported that may affect the on-going EM&A programme.

A15. According to the contractor’s information, the works of TKODP were substantially completed on 30 June 2024 and the plant commenced the operation phase on 1 July 2024. The outstanding construction works were being carried out during this reporting period. Details of the construction phase monitoring will be presented in the Construction Phase Monthly EM&A Report.

 

 

 

 

 

1.           Basic Contract Information

 

Background

1.1.         The Acciona Agua, S.A. Trading, Jardine Engineering Corporation, Limited and China State Construction Engineering (Hong Kong) Limited as AJC Joint Venture (AJCJV) is contracted to carry out the Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant (TKODP) under Contract No. 13/WSD/17 (the Contract).

1.2.         Aurecon Hong Kong Limited (Aurecon) is commissioned by AJCJV to undertake the Environmental Team (ET) services as required and/or implied, both explicitly and implicitly, in the Environmental Permit (EP), Environmental Impact Assessment Report (EIA Report) (Register No. AEIAR-192/2015) and Environmental Monitoring and Audit Manual (EM&A Manual) for the Contract; and to carry out the Environmental Monitoring and Audit (EM&A) programme in fulfillment of the EIA Report’s EM&A requirements and Contract No. 13/WSD/17 Specification requirements.

1.3.         Pursuant to the Environmental Impact Assessment Ordinance (EIAO), the Director of Environmental Protection granted the Environmental Permit (No. EP-01/503/2015/B) to Water Supplies Department (WSD); and granted the Further Environmental Permit (No. FEP-01/503/2015/B) to AJCJV for the Contract.

The Reporting Scope

1.4.         This is the 5th Operation Phase Monthly EM&A Report for the Contract which summarizes the key findings of the EM&A programme of the Tseung Kwan O Desalination Plant Operation phase during the reporting period from 1 November 2024 to 30 November 2024.

Contract Organization

1.5.         The Contract Organization structure for Operation Phase is presented in Figure 1.1.

 


 

 

                                Figure 1.1         Contract Organization Chart

1.6.         Contact details of the key personnel are presented in Table 1.1 below:

 

 

Table 1.1             Contact Details of Key Personnel

 

Party

Position

Name

Telephone no.

Contract Proponent (Water Supplies Department)

 

SE/CM2

 

Milton Law

 

2634-3573

 

Supervising Officer (Binnies Hong Kong Limited)

Project Manager

Augustine Li

2608-7671

Chief Resident Engineer

David Wong

5229-8638

 

 

 

 

The Jardine Engineering Corporation, Limited, China State Construction Engineering (Hong Kong) Limited and Acciona Agua, S.A. Trading

Project Manager

Stephen Yeung

2807-4665

Environmental Monitoring Manager

 

Brian Kam

 

9456-9541

Operation Manager

Arnes Parra, Victor

6468-6710

Environmental Monitoring Manager

 

Tommy Law

 

6468-1782

Aurecon Hong Kong Limited

Environmental Team Leader

Toby Wan

9719-5422

Lam Environmental Services Limited

Independent Environmental Checker (IEC)

 

Serena Shek

 

6149-6683

 

Summary of Operation Works

 

1.7.         Details of the major operation activities undertaken in this reporting period are shown below.

1.8.         As informed by the Contractor, key activities carried out in this reporting period for the Contract included the followings:

-                 Potable Water Production

 

1.9.         The key environmental mitigation measures implemented for the Contract in this reporting period associated with the above operation works include:

-                 Regularly monitoring of the effluent

-                 Sorting and storage of general refuse and operation waste

1.10.     Summary of the valid permits, licences, and/or notifications on environmental protection for this Contract is presented in Table 1.2.

Table 1.2           Summary of the Status of Valid Environmental Licence, Notification, Permit and Documentations

 

Permit/ Licences

Valid Period

Status

Remark

From

To

Environmental Permit

EP-503/2015/B

Throughout the Contract

Valid

-Issued on 3 April 2024

FEP - 01/503/2015/B

Throughout the Contract

Valid

-Issued on 3 April 2024

Billing Account for Disposal

7036276

Throughout the Contract

Valid

-

Sludge (Special Waste) Disposal (Admission Ticket)

 

 

17372

 

 

12/06/2024

 

 

31/12/2024

 

 

Valid

-The                  renewal application            was Submitted to EPD on 27 Nov 2024 and is pending                   EPD

approval.

Chemical Waste Producer Registration

5213-839-A2987-01

Throughout the Contract

Valid

-

Wastewater Discharge Licence (Land and Marine works)

 

 

 

 

 

 

 

WT00044188-2023

 

 

 

 

 

 

 

16/06/2023

 

 

 

 

 

 

 

30/06/2028

 

 

 

 

 

 

 

Valid

-   For Plant T&C and operation.

-   Variation sampling point S.P.1 is approved by the EPD on 25 June 2024 (EPD ref.: EP640/W3/D1358/ 462874).

The       variation      of application                 of

discharge license was submitted on 9 Sep   2024   and

pending                   EPD approval

1.11.     The status for all environmental aspects is presented in Table 1.3.

 

 

Table 1.3           Summary of Status for Key Environmental Aspects under the EM&A Manual

Parameters

Status

Water Quality

Baseline     Monitoring     under     EM&A Manual

The baseline water quality monitoring was conducted between 12 May 2020 to 6 Jun

2020.

Operation      phase      Marine      Impact Monitoring

On-going

Continuous Monitoring of Effluent Quality

 

On-going

Waste Management

Mitigation        Measures       in       Waste Management Plan

On-going

Landfill Gas

Monthly Monitoring for buildings, manholes and utility pits within the Project Site and along the fresh water

mains

 

On-going

Ecology (Coral)

Operation       phase       Regular       Coral Monitoring (Monthly)

 

On-going

Ecology (Fishery)

Operation     phase     Regular     Fishery Monitoring (Seasonally)

 

On-going

Landscape

Operation phase Landscape and Visual Site Inspection

 

On-going

Environmental Audit

Site Inspection covering Measures of Air Quality, Water Quality, Waste, Ecological           Quality,           Fisheries, Landscape and Visual

 

 

On-going

1.12.     Other than the EM&A work by ET, environmental briefings, trainings, and regular environmental management meetings were conducted, in order to enhance environmental awareness and closely monitor the environmental performance of the contractors.

1.13.     The EM&A programme has been implemented in accordance with the recommendations presented in the approved EIA Report and the EM&A Manual. A summary of implementation status of the environmental mitigation measures for the operation phase of the Contract during the reporting period is provided in Appendix B.

 

 

 

 

 

2.           Water Quality

 

2.1.         In accordance with the recommendations of the EIA, water quality monitoring is required during operation phase. The following Section provides details of the water quality monitoring to be undertaken by the Environmental Team (ET) to verify the distance of sediment and brine plume dispersion and to identify whether the potential exists for any indirect impacts to occur to ecological sensitive receivers.

2.2.         The water quality monitoring programme was carried out to allow any deteriorating water quality to be readily detected and timely action taken to rectify the situation.

2.3.         Water quality monitoring for the Contract can be divided into the following stages: (a) Operation phase Marine Water Quality Monitoring - first year upon commissioning (b)Continuous Monitoring of Effluent Quality

Water Quality Parameters

2.4.         Parameters to be measured in the marine water quality monitoring and the Continuous Monitoring of Effluent Quality are listed in Table 2.1 and Table 2.2 respectively.

a)  Operation phase Marine Water Quality Monitoring

2.5.         The parameters for the marine water quality monitoring that have been selected for measurement in situ and in the laboratory are those that were either determined in the EIA to be those with the most potential to be affected by the operation works or are a standard check on water quality conditions.

 

 

Table 2.1           Parameters measured in the Marine Water Quality Monitoring

 

Parameters

Unit

Abbreviation

In-situ measurements

Dissolved oxygen

mg/L

DO

Temperature

oC

-

pH

-

-

Turbidity

NTU

-

Salinity

0/00

-

Total Residual Chlorine

mg/L

TRC

Laboratory measurements

Suspended Solids

mg/L

SS

Iron-Soluble

mg/L

Fe

Anti-scalant as Reactive Phosphorus*

mg/L

PO4 as P-

*Remark: Anti-scalant water quality testing will only be conducted whenever anti-scalant dosage is adopted.

b)  Continuous Monitoring of Effluent Quality

2.6.         The monitoring requirement for the continuous effluent quality monitoring shall be conducted in accordance with the effluent parameters and standards stipulated by the Water Pollution Control Ordinance Discharge License (No.: WT00044188-2023) conditions.

Table 2.2  Parameters measured in the Continuous Monitoring of Effluent Quality

 

Parameters

Unit

Abbreviation

In-situ measurements

Temperature

oC

-

pH

pH

-

Salinity

0/00

-

Total Residual Chlorine

mg/L

TRC

Laboratory measurements

Suspended Solids

mg/L

SS

Iron-Soluble

mg/L

Fe

Total Inorganic Nitrogen

mg/L

-

Total Phosphorus

mg/L

-

Sodium Metabisulphite

mg/L

SMBS

Anti-scalant as Reactive Phosphorus *

mg/L

PO4 as P-

*Remark: Anti-scalant water quality testing will only be conducted whenever anti-scalant dosage is adopted.

 

2.7.         In addition to the marine water quality parameters, other relevant data were also being measured and recorded in Water Quality Monitoring Logs, including the location of the sampling stations, water depth, time, weather conditions, sea conditions, tidal stage, current direction and velocity, special phenomena and work activities undertaken around the monitoring and works area that may influence the monitoring results.

Monitoring Equipment

 

a)  Operation phase Marine Water Quality Monitoring

2.8.         For water quality monitoring, the following equipment were used:

Dissolved Oxygen and Temperature Measuring Equipment - The instrument was a portable, weatherproof dissolved oxygen measuring instrument complete with cable, sensor, comprehensive operation manuals, and was operable from a DC power source. It was capable of measuring: dissolved oxygen levels in the range of 0 - 20 mg/L and 0 - 200% saturation; and a temperature of 0 - 45 degrees Celsius. It has a membrane electrode with automatic temperature compensation complete with a cable of not less than 35 m in length. Sufficient stocks of spare electrodes and cables were available for replacement where necessary (e.g. YSI model 59 DO meter, YSI 5739 probe, YSI 5795A submersible stirrer with reel and cable or an approved similar instrument).

 

Turbidity Measurement Equipment - The instrument was a portable, weatherproof turbidity-measuring unit complete with cable, sensor and comprehensive operation manuals. The equipment was operated from a DC power source, it has a photoelectric sensor capable of measuring turbidity between 0 - 1000 NTU and complete with a cable with at least 35 m in length (for example Hach 2100P or an approved similar instrument).

Salinity Measurement Instrument - A portable salinometer capable of measuring salinity in the range of 0 - 40 ppt was provided for measuring salinity of the water at each monitoring location.

Water Depth Gauge - A portable, battery-operated echo sounder (for example Seafarer 700 or a similar approved instrument) was used for the determination of water depth at each designated monitoring station. This unit will preferably be affixed to the bottom of the work boat if the same vessel is to be used throughout the monitoring programme. The echo sounder was suitably calibrated.

Positioning Device - A Global Positioning System (GPS) was used during monitoring to allow accurate recording of the position of the monitoring vessel before taking measurements. The Differential GPS, or equivalent instrument, was suitably calibrated at appropriate checkpoint (e.g. Quarry Bay Survey Nail) to verify that the monitoring station is at the correct position before the water quality monitoring commence.

Water Sampling Equipment - A water sampler, consisting of a PVC or glass cylinder of not less than two litres, which can be effectively sealed with cups at both ends, was used. The water sampler has a positive latching system to keep it open and prevent premature closure until released by a messenger when the sampler is at the selected water depth.

Total Residual Chlorine -Total residual chlorine (TRC) shall be measured in-situ using approved test kit.

b)  Continuous Monitoring of Effluent Quality

2.9.         The equipment to be used for the effluent quality monitoring was summarizes in Table 2.3.

Table 2.3            Parameters measured in the Continuous Monitoring of Effluent Quality

 

Equipment

Model

 

Refrigerated Sampler

 

Teledyne ISCO 5800

Online sampler for real-time monitoring (Xylem WTW IQ SensorNet system and sensors)

DIQ/S 284-PR: Universal Transmitter to operate up to 4 digital IQ sensors, with PROFIBUS-connection

 

Equipment

Model

 

TetraCon® 700 IQ SW: Digital 4 electrode conductivity cell, in seawater design, suited for heavily polluted water, for use with the IQ SENSOR NET. With integrated temperature sensor

VisoTurb® 700 IQ SW: Digital turbidity sensor for industrial and seawater applications (ultrasonic cleaning) for use with the IQ SENSOR NET system

SensoLyt® 700 IQ SW: Robust digital pH/ORP sensor for SensoLyt® SEA/ DWA/ECA/PtA pH/ORP electrodes, in sea water design, for use with the IQ SENSOR NET. With built-in pre-amplifier and temperature sensor (NTC), with SensCheck function

FDO®700 IQ SW: Digital calibration free optical D.O. sensor (universal use). Optimized for measuring and controlling the O2 input in seawater applications, for use with IQ SENSOR NET. Factory calibrated system composed of sensor FDO® 700 IQ SW, membrane cap SCFDO® 700 and protective cap MSK FDO®

 

Chlorine 3017M: Online analyzer for photometric measurement of free and total chlorine, according to colorimetric DPD Method (ISO &US EPA); outputs (selectable): 4 to 20 mA or RS 485

Based on Section 5.1.3 of the EM&A Manual, the online sampler for real-time monitoring will be tested before use by HOKLAS-accredited laboratory and will be re-calibrated at monthly intervals throughout the stages of effluent quality monitoring.

Sampling / Testing Protocols

2.10.     All in situ monitoring instruments were checked, calibrated, and certified by a laboratory accredited under HOKLAS or any other international accreditation scheme before use, and subsequently re-calibrated at monthly intervals throughout the stages of the water

quality monitoring. Responses of sensors and electrodes were checked with certified standard solutions before each use.

2.11.     On-site calibration of field equipment was following the “Guide to On-Site Test Methods for the Analysis of Waters”, BS 1427: 2009. Sufficient stocks of spare parts were maintained for replacements when necessary. Backup monitoring equipment was made available so that monitoring can proceed uninterrupted even when equipment is under maintenance, calibration etc.

Laboratory Measurement and Analysis

 

a)  Operation phase Marine Water Quality Monitoring

2.12.     Sufficient volume of each water sample was collected for carrying out the laboratory analyses. Using chain of custody forms, collected water samples were transferred to a HOKLAS accredited laboratory (Acumen Laboratory and Testing Limit - HOKLAS 241) for immediate processing. The determination work was start within the next working day after collection of the water samples. Analytical methodology and sample preservation of other parameters were based on the latest edition of Standard Methods for the Examination of Waste and Wastewater published by APHA, AWWA and WPCF and methods by USEPA, or suitable method in accordance with requirements of HOKLAS or another internationally accredited scheme. The QA/QC details were in accordance with the requirements of HOKLAS or another internationally accredited scheme.

2.13.     Parameters for laboratory measurements, standard methods and detection limits are presented in Table 2.4.

Table 2.4           Laboratory measurements, standard methods, and corresponding detection limits of marine water quality monitoring

Parameters

Standard Methods

Detection Limit

Reporting Limit

Precision

Dissolved oxygen

Instrumental, CTD

0.1

-

+-25%

Temperature

Instrumental, CTD

0.1

-

+-25%

pH

Instrumental, CTD

0.1

-

+-25%

Turbidity

Instrumental, CTD

0.1

-

+-25%

Salinity

Instrumental, CTD

0.1

-

+-25%

Suspended Solids

APHA 23rd Ed 2540D

1.0

2.5

+-17%

Iron

APHA 3111 B

0.2

-

+-25%

Total residual chlorine

APHA 4500CL: G

0.01mg/L

-

+-25%

Anti-scalant*

Content acrylic polymers determination method

5 mg/L

-

-

 

*Remark: A proposal for update anti-scalant monitoring under the operation phase EM&A programme is proposed via email on 27 May 2024. EPD has agreed to update the anti-scalant monitoring detection limit, action and limit level from 0.2 mg/L to 5.0 mg/L (EPD ref. ()In EP 2/N8/E/120 Pt.14).

 

b)  Continuous Monitoring of Effluent Quality

2.14.       Analyses of the sample shall be carried out using American Public Health Association Standard Method for the Examination of Water and Wastewater or other internationally accepted standard methods proposed by the Licensee and approved by the Authority which could achieve the monitoring requirement.

Table 2.5            Measurements Methods for Continuous Monitoring of Effluent Quality

Parameters

 

Standard Methods

Flow Rate (m3 / day)

In-house method

Temperature(°C)

Instrumental

Salinity (0/00)

Instrumental

pH (pH units)

Instrumental

Suspended Solids (mg / L)

APHA 2540E

Iron (mg / L)

APHA 3111 B

Total Inorganic Nitrogen (mg / L)

In-house method

Total Phosphorous (mg / L)

In-house method

Total Residual Chlorine

APHA 4500CL: G

Sodium Metabisulphite

 

--

Anti-scalant ‘ACUMER’ 4035*

*Remark: Anti-scalant water quality testing will only be conducted whenever anti-scalant dosage is adopted.

 

 

Monitoring Location

 

a)  Operation phase Marine Water Quality Monitoring

2.15.     The operation phase water quality monitoring locations are in accordance with the EM&A Manual and detailed in Table 2.6 below. A schedule for water quality monitoring was prepared by the ET and submitted to IEC and EPD prior to the commencement of the monitoring.

 

Table 2.6            Location of Water Quality Monitoring Stations

 

Station

Easting

Northing

Description

CE

843550

815243

Upstream control station at ebb tide

CF

846843

810193

Upstream control station at flood tide

WSR1

846864

812014

Ecological sensitive receiver at Tung Lung Chau

WSR2

847645

812993

Fisheries sensitive receiver at Tung Lung Chau

WSR3

848023

813262

Ecological sensitive receiver at Tung Lung Chau

WSR4

847886

814154

Ecological sensitive receiver at Tai Miu Wan

WSR16

845039

815287

Ecological sensitive receiver at Fat Tong Chau

WSR33

847159

814488

Ecological sensitive receiver at Tai Miu Wan

WSR36

846878

814081

Ecological sensitive receiver at Kwun Tsai

WSR37

846655

813810

Ecological sensitive receiver at Tit Cham Chau

NF1

846542

813614

Edge of Mixing zone, ~ 200m west of outfall diffuser

NF2

846942

813614

Edge of Mixing zone, ~ 200m east of outfall diffuser

NF3

846742

813414

Edge of Mixing zone, ~ 200m south of outfall diffuser

 

2.16.       WSR1 to WSR37 were identified in accordance with Annex 14 of the EIAO-TM as well as Clause 3.4.4.2 of the Environmental Impact Assessment Study Brief for Desalination Plant at Tseung Kwan O (No. ESB-266/2013). WSR1 to WSR3 are sited near the Tung Lung Chau Fish Culture Zone; WSR16 and WSR36 are sited near the coral assemblages along the coastlines of Fat Tong Chau and Kwun Tsai respectively; WSR 4 and WSR33 are sited near the Coastal Protection Area and coral assemblages in waters of Tai Miu Wan; WSR37 is sited near the fisheries resource including spawning and nursery grounds at the coastal water of Tit Cham Chau. NF1 to NF3 are the Edge of Mixing zone.

 

 

Figure 2.1         Water Quality Monitoring Locations under EM&A Manual

 

b)  Continuous Monitoring of Effluent Quality

2.17.       In accordance with the discharge license, the Continuous Monitoring shall be sampling at Brine Outfall Shaft.


Figure 2.2         Continuous Monitoring locations

 

Sampling Frequency

 

a)  Impact Marine Water Quality Monitoring

2.18.     Water quality monitoring was carried out three days per week during the operation phase. Monitoring at each station was undertaken once per day. The interval between two sets of monitoring was not less than 36 hours. The monitoring frequency would be increased in the case of exceedances of Action/Limit Levels if considered necessary by ET. Monitoring frequency would be maintained as far as practicable.

b)  Continuous Monitoring of Effluent Quality

2.19.       The effluent should be collected in a full 24-hour period. Twenty four-hour flow- weighted composite effluent sample for subsequent chemical analysis and testing should be prepared by the following procedures:

-              Collect effluent sub-sample at bi-hourly interval over a 24 hour period

 

-              Obtain flow record of the Project for the 24-hour sampling period

 

-              Calculate the volume of each sub-sample for preparation of flow-weighted composite sample

-              Transfer the appropriate volume of sub-samples to a clean container and mix thoroughly

Sampling Depths & Replication

 

a)  Operation phase Marine Water Quality Monitoring

2.20.     During water quality monitoring, each station was sampled, and measurements/ water samples were taken at three depths, 1 m below the sea surface, mid-depth, and 1 m above the seabed. For in situ measurements, duplicate readings were made at each water depth at each station. Duplicate water samples were collected at each water depth at each station.

b)  Continuous Monitoring of Effluent Quality

2.21.     The effluent sampling should be planned carefully to ensure appropriate volume of effluent sub-samples is collected to prepare sufficient amount of flow-weighted composite effluent sample for carrying out subsequent chemical analysis and testing.

Action and Limit Levels

2.22.     The Action and Limit Levels have been set based on the derivation criteria specified in the EM&A Manual. The Action/Limit Levels have been derived and are presented in Table 2.7 and Table 2.8.

 

a)  Operation phase Marine Water Quality Monitoring

Table 2.7           Derived Action and Limit Levels for Water Quality

Parameters

Action

Limit

Operation phase Marine Water Quality Monitoring

DO in mg/L

Surface and Middle

7.30 mg L-1

Bottom

7.31 mg L-1

Tung Lung Chau Fish Culture Zone

5.1 mgL-1 or level at control station (Whichever the lower)

Surface and Middle 4 mg L-1

Bottom 2 mg L-1

Tung Lung Chau Fish Culture Zone

5.0 mgL-1 or level at control station (Whichever the lower)

SS in mg/L (Depth- averaged)

5.00 mg L-1 or 20% exceedance of value at any impact station compared with corresponding data from control station

6.00 mg L-1 or 30% exceedance of value at any impact station compared with corresponding data from control station

Turbidity in NTU (Depth- averaged)

2.41 NTU or 20% exceedance of value at any impact station compared with corresponding data from control station

2.84 NTU or 30% exceedance of value at any impact station compared with corresponding data from control station

Salinity in PSU (Depth- averaged)

34.25 PSU or 9% exceedance of value at any impact station compared with corresponding data from control station

34.56 PSU or 10% exceedance of value at any impact station compared with corresponding data from control station

Iron in mg/L (Depth- averaged)

0.3 mg/L

0.3 mg/L

Total residual chlorine in mg/L

0.01 mg/L

0.01 mg/L

*Anti-scalant in            mg/L (Depth-

averaged)

5.0 mg/L

5.0 mg/L

Notes:

i. "Depth-averaged" is calculated by taking the arithmetic means of reading of all three depths.

ii. For DO, non-compliance of the water quality limits occurs when monitoring result is lower than the limits.

iii.  For Turbidity, SS, iron and Salinity, non-compliance of the water quality limits occurs when monitoring result is higher than the limits.

iv. *A proposal for update anti-scalant monitoring under the operation phase EM&A programme is proposed via email on 27 May 2024. EPD has agreed to update the anti-scalant monitoring detection limit, action and limit level from 0.2 mg/L to 5.0 mg/L (EPD ref. ()In EP 2/N8/E/120 Pt.14).

 

b) Continuous Monitoring of Effluent Quality

Table 2.8           Derived Limit Levels for Water Quality

Parameters

Limit

Continuous Monitoring of Effluent Quality

Flow Rate in m3/day

216841

Temperature in °C

Maximum 40

Salinity

71347

SS in mg/L

13

pH

6-9

Iron in mg/L

0.6

Total residual chlorine in mg/L

0.1

Total Inorganic Nitrogen in mg/L

2

Total Phosphorous in mg/L

1

Sodium Metabisulphite in mg/L

0.5

Anti scalant in mg/L*

2.2

*Remark:

1. Anti-scalant water quality testing will only be conducted whenever anti-scalant dosage is adopted.

 

 

Monitoring Results and Observations

 

a)  Operation phase Marine Water Quality Monitoring

2.23.     The operation phase of Tseung Kwan O Desalination Plant was commenced on 1 July 2024. Marine water quality monitoring for the operation phase of Tseung Kwan O Desalination Plant was conducted in the reporting period at the thirteen monitoring stations (CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2 and NF3). The

Action and Limit Level would be referred to the approved EM&A Manual Table 2.7.

2.24.     The marine water quality monitoring was conducted at the thirteen monitoring stations on 2, 5, 7, 9, 12, 16, 19, 21, 23, 26, 28 and 30 November 2024.

2.25.     The marine water quality monitoring on 14 November 2024 was cancelled due to the typhoon signal no.3.

 

2.26.     Seven (7) of the operation phase water quality monitoring results of SS obtained had exceeded the Action Level. Thirty-six (36) of SS obtained during the reporting period had exceeded the Limit Level.

2.27.     Investigation on the reason of exceedance has been carried out, where the exceedances of SS on 2, 5, 7, 9, 12, 16, 19, 21, 23, 26, 28 and 30 November 2024 were concluded to be unrelated to the Contract as detailed in the Incident Reports on Action Level or Limit Level Non-compliance along with supporting materials in Appendix K.

2.28.     Monitoring results of 8 key parameters: Salinity, DO, turbidity, SS, pH, temperature, Total Residual Chlorine and Iron in this reporting, are summarized in Table 2.9, and detailed results are presented in Appendix F.

b) Continuous Monitoring of Effluent Quality

2.29.     Continuous Monitoring of Effluent Quality was conducted sampling point in the reporting month. No exceedance of the sampling was obtained during the reporting period. The detailed results are summarized in Table 2.10, and presented in Appendix F.

2.30.     The plant was shut down from 7 a.m. to 7 p.m. on 3 November 2024. No effluent discharge from TKODP occurred during this period.

2.31.     Due to the plant has suspended production, there was no effluent discharge from the TKODP during the period between 24 November 2024 and 30 November 2024.

 

Table 2.9           Summary of Impact Water Quality Monitoring Results

 

 

 

 

Locations

Parameters

 

 

Salinity (ppt)

Dissolved Oxygen (mg/L)

 

 

pH

 

 

Turbidity (NTU)

 

 

Suspended Solids (mg/L)

 

 

Temp. (oC)

 

 

TRC

(mg/L)

 

 

Iron (mg/L)

Surface & Middle

 

Bottom

 

CE

Avg.

32.06

8.48

8.51

8.18

2.41

3.29

26.55

<0.01

<0.1

Min.

31.27

8.05

8.05

8.00

2.05

2.50

25.10

<0.01

<0.1

Max.

33.14

8.98

8.96

8.36

2.69

6.00

27.57

<0.01

<0.1

 

CF

Avg.

32.14

8.69

8.69

8.14

2.32

3.76

26.41

<0.01

<0.1

Min.

31.52

8.12

8.04

7.94

2.06

2.50

25.06

<0.01

<0.1

Max.

33.23

9.21

9.26

8.41

2.66

8.00

27.59

<0.01

<0.1

 

WSR1

Avg.

32.07

8.48

8.50

8.17

1.77

3.44

26.55

<0.01

<0.1

Min.

31.40

7.96

7.95

7.98

1.34

2.50

25.25

<0.01

<0.1

Max.

32.42

9.22

9.33

8.32

2.18

9.00

27.81

<0.01

<0.1

 

WSR2

Avg.

32.07

8.71

8.73

8.14

1.73

3.38

26.49

<0.01

<0.1

Min.

31.05

7.91

7.91

8.00

1.40

2.50

25.00

<0.01

<0.1

Max.

33.30

9.15

9.25

8.30

2.20

10.00

27.60

<0.01

<0.1

 

WSR3

Avg.

32.13

8.68

8.69

8.16

1.76

3.62

26.47

<0.01

<0.1

Min.

31.29

8.21

8.28

7.98

1.42

2.50

24.94

<0.01

<0.1

Max.

32.90

9.24

9.25

8.36

2.09

12.00

27.80

<0.01

<0.1

 

WSR4

Avg.

32.07

8.52

8.52

8.15

1.86

3.53

26.56

<0.01

<0.1

Min.

31.00

8.02

8.00

7.91

1.47

2.50

25.15

<0.01

<0.1

Max.

32.84

9.27

9.19

8.33

2.21

7.00

27.71

<0.01

<0.1

 

WSR16

Avg.

32.24

8.62

8.63

8.18

1.67

4.07

26.51

<0.01

<0.1

Min.

31.20

8.09

8.05

7.94

1.37

2.50

25.19

<0.01

<0.1

Max.

33.07

9.05

9.11

8.33

2.10

9.00

27.44

<0.01

<0.1

 

 

 

 

Locations

Parameters

 

 

Salinity (ppt)

Dissolved Oxygen (mg/L)

 

 

pH

 

 

Turbidity (NTU)

 

 

Suspended Solids (mg/L)

 

 

Temp. (oC)

 

 

TRC

(mg/L)

 

 

Iron (mg/L)

Surface & Middle

 

Bottom

 

WSR33

Avg.

32.10

8.47

8.49

8.20

1.77

3.53

26.55

<0.01

<0.1

Min.

31.27

7.83

7.97

7.92

1.23

2.50

25.14

<0.01

<0.1

Max.

33.09

9.28

9.38

8.36

2.20

8.00

27.88

<0.01

<0.1

 

WSR36

Avg.

31.80

8.66

8.68

8.16

1.78

3.69

26.46

<0.01

<0.1

Min.

31.17

8.14

8.21

7.97

1.46

2.50

24.84

<0.01

<0.1

Max.

32.54

9.14

9.13

8.32

2.13

11.00

27.36

<0.01

<0.1

 

WSR37

Avg.

32.00

8.52

8.52

8.20

1.76

4.46

26.55

<0.01

<0.1

Min.

31.04

7.75

7.72

8.04

1.48

2.50

25.13

<0.01

<0.1

Max.

32.79

9.10

9.18

8.32

2.21

13.00

27.88

<0.01

<0.1

 

NF1

Avg.

32.27

8.67

8.68

8.16

1.74

3.47

26.51

<0.01

<0.1

Min.

31.59

8.11

8.11

7.96

1.39

2.50

25.04

<0.01

<0.1

Max.

33.24

9.21

9.14

8.30

2.04

9.00

27.87

<0.01

<0.1

 

NF2

Avg.

32.05

8.49

8.48

8.13

1.71

4.14

26.49

<0.01

<0.1

Min.

31.38

7.99

8.02

7.99

1.43

2.50

25.14

<0.01

<0.1

Max.

32.84

9.24

9.11

8.28

2.14

15.00

27.57

<0.01

<0.1

 

NF3

Avg.

32.11

8.72

8.70

8.15

1.67

3.78

26.50

<0.01

<0.1

Min.

31.25

8.05

8.08

7.98

1.42

2.50

24.99

<0.01

<0.1

Max.

32.83

9.33

9.33

8.25

2.22

10.00

27.74

<0.01

<0.1

Notes:

i.            "Avg", “Min” and “Max” is the average, minimum and maximum respectively of the data from measurements conducted under mid-flood and mid-ebb tides at three water depths, except that of

DO where the data for “Surface & Middle” and “Bottom” are calculated separately.

ii.            Measurement data of Suspending Solids would be rounding to 2.5mg/L if the value was less than 2.5mg/L to facilitate data analysing.

 

 

Table 2.10        Summary of Continuous Effluent Monitoring Results

 

 

 

Sal (ppt)

 

pH

 

Temp (°C)

Total Residual Chlorine

(mg/L)

 

Suspended Solids (mg/L)

Total Inorganic Nitrogen

(mg/L)

Total Phosphorus (mg/L)

*Sodium Metabisulphite (mg/L)

 

Iron (mg/L)

Avg.

53.82

7.32

26.01

0.04

2.00

0.21

0.01

<2

<0.1

Min.

49.80

6.68

24.01

0.01

<2

0.02

<0.01

<2

<0.1

Max.

58.64

8.00

28.60

0.09

2

0.42

0.02

<2

<0.1

* Remark: As confirmed by various laboratories in Hong Kong, the lowest detection limit for Sodium Metabisulphite is <2 mg/L. Due to the limitation of the laboratory, the lowest result for Sodium Metabisulphite will only be shown as < 2 mg/L.

 

 

 

 

 

3.           Waste

 

3.1.    The waste generated from this Contract includes inert construction and demolition (C&D) materials, and non-inert C&D materials. Non-inert C&D materials are made up of general refuse, vegetative wastes and recyclable wastes such as plastics and paper/cardboard packaging waste. Steel materials generated from the Contract are also grouped into non-inert C&D materials as the materials were not disposed of with other inert C&D materials. With reference to relevant handling records and trip tickets of this Contract, the quantities of different types of waste generated in the reporting month are summarized in Table 3.1. Details of cumulative waste management data are presented as a waste flow table in Appendix G.

Table 3.1           Quantities of Waste Generated from the Contract during the reporting period

 

 

 

 

 

Reporting Month

Actual Quantities of Inert C&D Materials Generated Monthly

Actual Quantities of C&D Wastes Generated Monthly

 

 

Total Quantity Generated

 

Hard Rock and Large Broken Concrete

 

 

Reused in the Contract

 

 

Reused in other Projects

 

 

Disposed as Public Fill

 

 

Imported Fill

 

 

 

Metals

 

 

Paper / cardboard packaging

 

 

 

Plastics (1)

 

 

Chemical Waste

 

Others, e.g., general refuse

(in ’000kg)

(in ’000kg)

(in ’000kg)

(in ’000kg)

(in ’000kg)

(in ’000kg)

(in ’000kg)

(in ’000kg)

(in ’000kg)

(in ’000kg)

(in ’000kg)

Nov 2024

237.790

0.000

0.000

0.000

237.790

0.000

0.000

0.000

0.000

0.000

62.300

Notes: (1) Plastics refer to plastic bottles / containers, plastic sheets / foam from packaging material

 

 

3.2.    No dewatered sludge was generated by the operation in the reporting period.

 

 

 

 

 

4.           Landfill Gas Monitoring

 

Monitoring Requirement

4.1.        In accordance with Section 11 of the EM&A Manual, monthly monitoring of landfill gas is required for the first year of operation at buildings within the Project Site and consultation zone. Part of the desalination plant and the indicative area of natural slope mitigation works fall within the SENT Landfill Extension Consultation Zone; and part of the 1,200 mm diameter freshwater mains along Wan Po Road falls within the SENT Landfill and SENT Landfill Extension Consultation Zones, TKO Stage II/III Restored Landfill and TKO Stage I Restored Landfill Consultation Zones.

4.2.        Routine monitoring is required at buildings within the Project Site and consultation zones. The monitoring frequency will be monthly for the first year of operation.

4.3.        For the manholes and utility pits within the Project Site and along the fresh water mains, each manhole/ utility pit should be monitored with two measurements (at mid depth and base). Each measurement should be monitored for a minimum of 10 minutes. A steady reading and peak reading should be recorded at each manhole/ utility pit and for each measurement.

4.4.        Monitoring of oxygen, methane, carbon dioxide and barometric pressure would be performed monthly during the operation phase.

Monitoring Location

 

4.5.         The area required to be monitored for landfill gas in the reporting period is shown in Figure 4.1, Figure 4.2 and Figure 4.3.

Map Description automatically generated

Figure 4.1 Overview of the SENT Extension Consultation Zone and the Contract Site Area

 

A map of a city Description automatically generated

 

Figure 4.2 Landfill Gas Monitoring Location For Building

A blueprint of a building Description automatically generated

Figure 4.3 Landfill Gas Monitoring Location For Manholes/Pits

Monitoring Parameters

4.6.         The landfill gas monitoring parameters and the action and limit level are summarized in Table 4.1.

Table 4.1           Action and Limit Level for Landfill Gas Monitoring Equipment

Parameters

Action Level

Limit Level

Oxygen (O2)

<19% O2

<19% O2

Methane (CH4)

>10% LEL

>20% LEL

Carbon Dioxide (CO2)

>0.5% CO2

>1.5% CO2

 

MONITORING EQUIPMENT

4.7.         Landfill Gas monitoring was carried out using intrinsically-safe, portable multi-gas monitoring instruments. The gas monitoring equipment is:

-            Complying with the Landfill Gas Hazard Assessment Guidance Note as intrinsically safe;

-            Capable of continuous barometric pressure and gas pressure measurements;

-            Normally operated in diffusion mode unless required for spot sampling, when it should be capable of operating by means of an aspirator or pump;

-            Having low battery, fault and over range indication incorporated;

-            Capable of storing monitoring data, and shall be capable of being downloaded directly;

-            Measure in the following ranges:

methane

0-100% Lower Explosion Limit (LEL) and 0-100% v/v;

oxygen

0-25% V/V;

carbon dioxide

0-5% v/v; and

barometric pressure

mBar (absolute)

 

-       alarm (both audibly and visually) in the event that the concentrations of the following are exceeded:

 

methane

>10% LEL;

oxygen

<19%

carbon dioxide

>0.5% by volume

barometric pressure

mBar (absolute)

 

4.8.         Monitoring equipment used in the reporting period are summarized in Table 4.2. The Landfill Gas monitoring equipment calibration certificate is presented in Appendix E.

Table 4.2           Landfill Gas Monitoring Equipment

Equipment

Brand and Model

Calibration Expiry Date

Portable Gas Detector

Altair 5X

22 April 2025

 

 

Monitoring results and observations

4.9.        In this reporting period, monthly landfill gas monitoring was conducted on 14 and 15 November 2024. No exceedances of action level and limit level was observed. The detail of result was presented in Appendix F.

 

 

 

 

 

5.           Landscape

 

Monitoring Requirements

5.1.                In accordance with Section 8.1 of the EM&A Manual, weekly site audit shall be carried out by the ET include checking whether good site practices are being properly implemented by the Contractor and the extent of the works area within the Clear Water Bay Country Park should be checked by the ET during the weekly site audit.

Site Inspection

5.2.             Weekly site audit was carried out by the ET in the reporting month, no trespass by the Contractor outside the works area of the Project and Clear Water Bay Country Park, and no damage to the vegetation and rocky shore outside the Project area was observed in the reporting month. All plants were observed to be in satisfactory condition in the reporting month.

5.3.             If non-compliance were found during the operation phase, the actions in accordance with the Event and Action Plan will be carried out according to Appendix D.

 

 

 

 

 

6.   Ecology (Coral Monitoring)

 

6.1.             Under the approval conditions of the EIA Report for the Project, an EM&A programme on coral for the operation phase of the Project is recommended. Pursuant to these EIA approval conditions and Condition 3.1 of the EP and FEP, details of the regular coral monitoring programme have been proposed based on the baseline coral monitoring results in the Report on operation Baseline Coral Monitoring and Regular Coral Monitoring Methodology.

Monitoring Location

6.2.             In accordance with Appendix B Section 5.1 of the approved supplementary EM&A Manual, two indirect impact sites (C2 and C3) and one control site (C8) as shown in Figure 6.1 should be monitored during the operation Phase. Operation coral survey should be conducted at the indirect impact and control sites. Ten selected hard coral colonies with similar species should be tagged at each of the control and indirect impact sites before commencement of the operation phase. Tagged hard coral colonies should be monitored in open waters during the operation phase.


Figure 6.1 Spot Dive Check Areas Two Proposed Indirect Impact Sites (C2 and C3) and one control site (C8) during Operation Phase

 

 

Action and Limit Levels

6.3.             The Action and Limit Levels have been set based on the derivation criteria specified in the EM&A Manual. The Action/Limit Levels have been derived and are presented in Table 6.1.

Table 6.1           Action and Limit Level for Coral Monitoring Equipment

Parameter

Action Level Definition

Limit Level Definition

Mortality

If during Impact Monitoring a 15% increase in the percentage of partial mortality on the corals occurs at more than 20% of the tagged indirect impact site coral colonies that is not recorded on the tagged corals at the control site, then the Action Level is exceeded

If during Impact Monitoring a 25% increase in the percentage of partial mortality on the corals occurs at more than 20% of the tagged indirect impact site coral colonies that is not recorded on the tagged corals at the control site, then the Limit Level is exceeded

Note: If the defined Action Level or Limit Level for coral monitoring is exceeded, the actions as set out in Table E3 will be implemented.

6.4.             If non-compliance were found during the opertaion works, the actions in accordance with the Event and Action Plan will be carried out according to Appendix D.

Monitoring Frequency

6.5.             Operation phase coral monitoring shall be monitored once per month as the requirement of the first year of operational phase.

Monitoring Result and Observation

 

6.6.             Operation phase coral monitoring works was conducted on 11 November 2024. A total of 30 tagged coral colonies (10 at control site and 20 and two indirect impact sites) were monitored. All coral colonies were good in general. The detail of the monitoring is presented in Appendix H.

 

 

 

 

 

7.                    Ecology (Fishery Monitoring)

 

7.1.             The purpose of the operation phase regular fisheries monitoring programme is to monitor the potential impacts on fisheries resources in the vicinity of the project site. Apart from the regular fisheries monitoring programme, a water quality monitoring programme in addition to the water quality monitoring programme in the approved EM&A Manual is also described in Section 2.4 to (i) provide supplementary information in the interpretation of the findings of the fisheries monitoring and (ii) assist the monitoring of the potential impact on the Tung Lung Chau Fish Culture Zone (FCZ) in Joss House Bay.

Monitoring Location

7.2.             In accordance with Section 2.3 of the approved Methodology Paper on Regular Fisheries Monitoring, it is recommended to set up six (6) fisheries monitoring locations in Joss House Bay and its vicinity to monitor the fisheries resources.

7.3.             Two (2) sampling locations are set up in close proximity of the direct footprint of the proposed submarine utilities around TKO Area 137. These sampling locations represent the potential Project impact zones (i.e. areas at and in close proximity to the footprint of the proposed submarine utilities that will be directly affected by the Project works).

7.4.             Two (2) gradient locations are proposed between the proposed submarine utilities and Tung Lung Chau FCZ to assist in the interpretation and identification of any potential fisheries impact in the vicinity of the FCZ.

7.5.             Two (2) reference locations are proposed in the outer Joss House Bay between the waters of Tung Lung Chau and Fat Tong Mun. These reference locations are further away and will not be affected by the Project discharge (based on the EIA prediction) and will serve as control stations. Any significant fisheries impact identified at the reference locations should be caused by other natural factors or non-Project activities. The trends of fisheries conditions recorded in the reference locations will be used to assist in the interpretation of the trends of fisheries impact identified in the impact and gradient locations.

7.6.              The coordinates of the proposed monitoring locations are shown in Figure 7.1.

 

 

Figure 7.1 Monitoring Location of Regular Fishery Monitoring during Operation Phase

Monitoring Frequency

7.7.              Operation phase fishery monitoring shall be carried out 2 times in wet season (April to October) and 2 times in dry season (November to March) to examine the following:

-              Fish species composition;

-              Abundance: number of fish captured;

-              Diversity of fish resources: species diversity and evenness;

-              Size: range of total length; Biomass in weight; and

-              Values of catches of commercial species: catch per unit effort (CPUE) and yield per unit effort (YPUE).

Monitoring Result and Observation

7.8.             Operation phase fishery monitoring for wet season 2024 was carried out on 24 and 31 August 2024. The detail of the monitoring was presented in the 4th Operation Phase Monthly EM&A Report.

 

 

 

 

 

8.           Summary of Exceedance, Complaints, Notification of Summons and Prosecutions

8.1.           The Environmental Complaint Handling Procedure is shown in below Figure 9.1:


 

Figure 9.1         Environmental Complaint Handling Procedures

 

8.2.           Operation phase EM&A works for water quality were conducted at the thirteen monitoring stations (CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36,

WSR37 NF1, NF2 and NF3) during the reporting period in accordance with the EM&A Manual

8.3.           The marine water quality monitoring was conducted at the thirteen monitoring stations on 2, 5, 7, 9, 12, 16, 19, 21, 23, 26, 28 and 30 November 2024. Seven (7) of SS obtained had exceeded the Action Level. Thirty-six (36) of SS obtained during the reporting period had exceeded the Limit Level. After investigation, all exceedances were concluded unrelated to the Project.

8.4.           The marine water quality monitoring on 14 November 2024 was cancelled due to the typhoon signal no.3.

8.5.           Continuous Monitoring of Effluent Quality was conducted sampling point in the reporting month. No exceedance of the sampling was obtained during the reporting period.

8.6.           The plant was shut down from 7 a.m. to 7 p.m. on 3 November 2024. No effluent discharge from TKODP occurred during this period.

8.7.           Due to the plant has suspended production, there was no effluent discharge from the TKODP during the period between 24 November 2024 and 30 November 2024.

8.8.           Operation phase coral monitoring works was conducted on 11 November 2024. There is no AL/LL exceedance during the monitoring period. The detail of the monitoring was presented in Appendix H.

8.9.           Operation phase fishery monitoring for wet season 2024 was carried out on 24 and 31 August 2024. The detail of the monitoring was presented in the 4th Operation Phase Monthly EM&A Report.

8.10.       In this reporting period, monthly landfill gas monitoring was conducted on 14 and 15 November 2024. No exceedances of action level and limit level was observed.

8.11.       No environmental complaint, notification of summons and prosecution Statistics on complaint and notification of summons and prosecution are summarized in Appendix J.

 

 

 

 

 

9.           EM&A Site Inspection

 

9.1.    Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract. In the reporting period, site inspections were carried out on 5, 14, 18 and 26 November 2024 at the site portions listed in Table 10.1 below.

Table 10.1        Summaries of Site Inspection Record

 

Date

Inspected Site Portion

Time

5 November 2024

TKO Area 137

14:30 - 15:30

14 November 2024

TKO Area 137

14:30 - 15:30

18 November 2024

TKO Area 137

09:30 - 10:30

26 November 2024

TKO Area 137

09:15 - 12:30

9.2.         Joint site inspections with IEC were carried out on 26 November 2024.

9.3.        Environmental deficiencies were observed during weekly site inspection. Key observations during the site inspections and during the reporting period are summarized in Table 10.2.

Table 10.2        Site Observations

 

Date

Environmental Observations

Follow-up Status

5 November 2024

No major environmental deficiency was observed.

N/A

14 November 2024

No major environmental deficiency was observed.

N/A

18 November 2024

No major environmental deficiency

was observed.

N/A

26 November 2024

No major environmental deficiency was observed.

N/A

9.4.    According to the EIA Study Report, Environmental Permit, contract documents and EM&A Manual, the mitigation measures detailed in the documents should be implemented as much as practical during the reporting period. An updated Implementation Status of Environmental Mitigation Measures (EMIS) is provided in Appendix B. Site inspection proforma of the reporting period is provided in Appendix I.

 

 

 

 

 

10.    Future Key Issues

 

10.1.      Works to be undertaken in the next reporting month are:

 

-                 Potable Water Production

10.2.       The major environmental impacts brought by the above operation works include:

 

-                 Effluent of the water production work and system cleaning works;

-                 Waste generation from the operation activities

 

10.3.       The key environmental mitigation measures implemented for the Contract in this reporting period associated with the above operation works include:

-                 Regularly monitoring of the effluent

-                 Sorting and storage of general refuse and operation waste

 

 

 

 

 

11.    Conclusions and Recommendations

 

11.1.   This is the 5th Monthly EM&A Report for the Project which summarizes the key findings of the EM&A programme during the reporting period from 1 November 2024 to 30 November 2024, in accordance with the EM&A Manual and the requirement under FEP- 01/503/2015/B.

11.2.   The EM&A works for operation phase water quality were conducted during the reporting period in accordance with the EM&A Manual. Seven (7) of SS obtained had exceeded the Action Level. Thirty-six (36) of SS obtained during the reporting period had exceeded the Limit Level. After investigation, all exceedances were concluded unrelated to the Project.

11.3.   Continuous Monitoring of Effluent Quality was conducted sampling point in the reporting month. No exceedance of the sampling was obtained during the reporting period.

11.4.   The plant was shut down from 7 a.m. to 7 p.m. on 3 November 2024. No effluent discharge from TKODP occurred during this perio

11.5.   Due to the plant has suspended production, there was no effluent discharge from the TKODP during the period between 24 November 2024 and 30 November 2024.

11.6.    Operation phase coral monitoring works was conducted on 11 November 2024. There is no AL/LL exceedance during the monitoring period.

11.7.    Operation phase fishery monitoring for wet season 2024 was carried out on 24 and 31 August 2024. The detail of the monitoring was presented in the 4th Operation Phase Monthly EM&A Report.

11.8.    In this reporting period, monthly landfill gas monitoring was conducted on 14 and 15 November 2024. No exceedances of action level and limit level was observed.

11.9.    Weekly environmental site inspections were conducted during the reporting period. Observations and reminders were reported during the site inspections. All items are rectified within the reporting period. The environmental performance of the project was therefore considered satisfactory.

11.10. No environmental complaint, notification of summons and prosecution was received in the reporting period.

11.11. The ET will keep track on the operation works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.

 

 

 

 

 

Appendix A

 

Overview of Desalination Plant in Tseung Kwan O

 

 

 

 

 

 

 

 

 

 

 

Appendix B

 

Summary of Implementation Status of Environmental Mitigation

 

 

 

 

 

 

EIA

Reference

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

Implementation Agent

Implementation Stage

Implementation status

Relevant Legislation & Guidelines

D

C

O

Air Quality

 

S4.8.1

Ultra-low-sulphur diesel (ULSD) will be used for all construction plant on-site, as defined as diesel fuel containing not more than 0.005% sulphur by weight) as stipulated in Environment, Transport and Works Bureau Technical Circular (ETWB-TC(W)) No 19/2005 on Environmental Management on Construction Sites.

Land site/ During construction/ During Operation

Contractor(s)

 

ü

ü

Implemented

Environment, Transport and Works Bureau Technical Circular (ETWB- TC(W)) No

19/2005 on Environmental Management on Construction Sites

Water Quality

S6.9 and S6.12

The sterilization water should be dechlorinated with total residual chlorine (TRC) level below 1 mg/L before discharge to public sewer. In situ testing of TRC should also be conducted for the discharge of chlorinated water for pipeline disinfection to ensure sufficient dechlorination before discharge to public sewer.

Sterilization of water mains prior to commissioning

Contractor(s)

 

ü

ü

N/A

Technical Memorandum for Effluents Discharged into Drainage and Sewerage Systems Inland and Coastal Waters

S6.9

The cleaning and flushing water should also be treated and desilted to the relevant discharge requirement stipulated in TM-DSS before discharging.

Sterilization of water mains prior to commissioning

Contractor(s)

 

ü

ü

Implemented

S6.9

Site drainage should be well maintained, and good construction practices should be observed to ensure that oil, fuels, solvents, and other chemicals are managed, stored and handled properly and do not enter the nearby water streams.

Land site & drainage/ During construction/ During operation

Contractor(s)

 

ü

ü

Implemented

 

-

Waste Management

S8.5

Provision of sufficient waste disposal points and regular collection for disposal.

All area/ During construction/ During operation

Contractor(s)

 

ü

ü

Implemented

DEVB TC(W) No.

8/2010, Enhanced Specification for Site Cleanliness and

Tidiness.

S8.5

Chemical waste container shall be suitable for the substance they are holding, resistant to corrosion, maintained in a good condition, and securely closed.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

 

Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes

S8.5

Chemical waste container shall have a capacity of less than 450 L unless the specifications have been approved by the EPD.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

S8.5

A label in English and Chinese shall be displayed on the chemical container in accordance with instructions prescribed in Schedule 2 of the Regulations.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

 

EIA

Reference

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

Implementation Agent

Implementation Stage

Implementation status

Relevant Legislation & Guidelines

D

C

O

S8.5

Storage areas for chemical waste shall be enclosed on at least 3 sides.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

S8.5

Storage areas for chemical waste shall have an impermeable floor and bunding, of capacity to accommodate 110% of the volume of the largest container or 20% by volume of the chemical waste stored in that area, whichever is the greatest.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

S8.5

Storage areas for chemical waste shall have adequate ventilation.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

S8.5

Storage areas for chemical waste shall be covered to prevent rainfall entering (water collected within the bund must be tested and disposed of as chemical waste, if necessary).

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

S8.5

Storage areas for chemical waste shall be arranged so that incompatible materials are appropriately separated.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

S8.5

General refuse will be stored in enclosed bins or compaction units separately from construction and chemical wastes.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented after reminder

S8.5

Adequate number of waste containers will be provided to avoid over-spillage of waste.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

DEVB TC(W) No.

8/2010

Enhanced Specification for Site Cleanliness and

Tidiness.

S8.5

A reputable waste collector will be employed by the Contractor to remove general refuse from the site, separately from construction and chemical wastes, on a daily basis to minimize odour, pest and litter impacts.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

 

-

S8.5

Recycling bins will be provided at strategic locations within the Site to facilitate recovery of recyclable materials (including aluminum can, wastepaper, glass bottles and plastic bottles) from the Site. Materials recovered will be sold for recycling.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

ü

ü

Implemented

 

-

Landscape & Visual

S11.10 & 11.11

The construction area and area allowed for temporary structures, such as the contractor’s office, will be minimized to a practical minimum. (MM1)

All area/ Detailed design/

During construction/ During operation

WSD/ Contractor(s)

ü

ü

ü

Implemented

-

 

EIA

Reference

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

Implementation Agent

Implementation Stage

Implementation status

Relevant Legislation & Guidelines

D

C

O

S11.10 & 11.11

At the detailed design stage, the design team will seek to minimize the landscape footprint of the Project and above ground facilities, while satisfying all other requirements. (MM2)

All area/ Detailed design/

During construction/ During operation

WSD/ Contractor(s)

ü

ü

ü

Implemented

-

S11.10 & 11.11

Design principles will be adopted to take into account the surrounding area, particularly Clear Water Bay Country Park behind and the nearby waterfront, with due consideration given to:

-  green roofs where practical (i.e. without equipment on the roof);

-  roadside planting;

-  aesthetic treatment of all structures;

-  vertical greening;

-  screen planting along application site; and

-  landscape enhancement with amenity planting where practical including planting along the edge (site boundary) fence with native shrubs where feasible, to reduce their visual impact and

blend them into the surrounding landscape. (MM3)

All area/ Detailed design/ During construction/ During operation

WSD/ Contractor(s)

ü

ü

ü

Implemented

-

S11.10 & 11.11

All trees within the Project Site or the potential slope mitigation works area will be carefully protected during construction according to DEVB TCW No. 10/2013 - Tree Preservation (MM4)

All area/ Detailed design/ During construction/ During

operation

WSD/ Contractor(s)

ü

ü

ü

Implemented

ETWB TCW No. 3/2006

- Tree Preservation.

S11.10 & 11.11

No tree within the Country Park will be felled. Trees within the Site unavoidably affected by the works will be transplanted where necessary and practical. For trees that need to be felled, compensatory planting will be provided to the satisfaction of relevant Government departments.

A compensatory tree planting proposal including locations of tree compensation will be submitted to seek relevant government

department’s approval, in accordance with DEVB TC(W) No. 10/2013. (MM5)

All area/ Detailed design/ During construction/ During operation

WSD/ Contractor(s)

ü

ü

ü

Implemented

DEVB TC(W) No. 10/2013

S11.10 & 11.11

Any slope mitigation works necessary to address natural terrain hazards, will be minimized to minimize any potential environmental impact to the Country Park e.g. soil nailing and rock stabilization will aim to avoid existing trees e.g. should any restoration of vegetation be necessary, the best planting matrix with native species will be established, with the aim of resembling

the existing vegetation. (MM6)

All area/ Detailed design/ During construction/ During operation

WSD/ Contractor(s)

ü

ü

ü

Implemented

 

S11.10 & 11.11

Dredging works for the installation of intake structures and outfall diffusers should be minimized to avoid or reduce any potential environmental impacts to as low  as reasonably practicable

(ALARP). The intake and outfall structures (e.g. intake openings and diffuser heads) will be prefabricated and transferred to site for

All area/ Detailed design/ During construction/ During operation

WSD/ Contractor(s)

ü

ü

ü

Implemented

 

 

EIA

Reference

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

Implementation Agent

Implementation Stage

Implementation status

Relevant Legislation & Guidelines

D

C

O

 

installation. (MM7)

 

 

 

 

 

 

 

S11.10 & 11.11

All night-time lighting will be reduced to a practical minimum both in terms of number of level and will be hooded and

directional. (MM8) units and lux level and will be hooded and directional. (MM8)

All area/ Detailed design/ During construction/ During operation

WSD/ Contractor(s)

ü

ü

ü

Implemented

-

Landfill Gas Hazard

S12.7

During all works, safety procedures should be implemented to minimize the risks of fires and explosions, asphyxiation of workers and toxicity effects resulting from contact with contaminated soil

and groundwater.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

-

S12.7

During trenching and excavation as well as creation of confined spaces at near to or below ground level, precautions should be clearly laid down and rigidly Gas detection equipment and appropriate breathing apparatus should be available and used

when entering confined spaces or trenches deeper than 1 meter.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

S12.7

The Contractor should make the workers are aware of potential hazards of working in confined spaces (any chamber, manhole or culvert which is large enough to permit access to personnel). Such work in confined spaces is controlled by the Factories and Industrial Undertakings (Confined Spaces) Regulations of the Factories and Industrial Undertakings Ordinance.

Following the Safety Guide to Working in Confined Spaces ensures compliance with the above regulations.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

S12.7

Safety officers, specifically trained with regard to landfill gas and leachate related hazards and the appropriate actions to take in adverse circumstances, should be present on the site throughout the works, in particular, when works are undertaken below grade.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

S12.7

All personnel who work on site and all visitors to the site should be made aware of the possibility of ignition of gas in the vicinity of the works, the possible presence of contaminated water and the need to avoid physical contact with it.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

S12.7

Monitoring for landfill gas should be undertaken in all excavations, manholes, chambers (particularly during pipe jacking) and any confined spaces through the use of an intrinsically safe portable instrument, appropriately calibrated and capable of measuring the concentrations of methane. carbon dioxide and oxygen.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

S12.7

Monitoring frequency and areas to be monitored should be specified prior to commencement of groundwork, either by the Safety Officer, or by an appropriately qualified person. All measurements should be recorded and documented.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

 

EIA

Reference

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

Implementation Agent

Implementation Stage

Implementation status

Relevant Legislation & Guidelines

D

C

O

S12.7

Proceed drilling with adequate care and precautions against the potential hazards which may be encountered.

All area/ Detailed design/

During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

S12.7

Prior to the commencement of the site works, the drilling contractor should devise a 'method-of- working' statement covering all normal and emergency procedures (including but not limited to number of operatives, experience and special skills of operatives, normal method of operations, emergency procedures, supervisors responsibilities, storage and use of safety equipment, safety procedures and signs, barriers and guarding).  The site

supervisor and all operatives must be familiar with this statement.

All area/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

S12.7

Where below ground service entries are necessary to the Incoming Switchgear Room, 132 kV Substation and Chlorine Store (I) and (II), the entry point should be sealed to prevent gas entry. In addition, any below grade cable trenches entering the Incoming Switchgear Room and 132 kV Substation can become the pathway

for landfill gas and hence grilled metal covers should be used.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

N/A

 

S12.7

It is recommended regular landfill gas monitoring should be carried out at the Incoming Switchgear Room, 132 kV Substation and Chlorine Store (I) and (II). The monitoring frequency will be monthly for the first year of operation. If the monitoring results show no sign of landfill gas migration, reduce the monitoring

frequency to once every six months.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

N/A

 

S12.7

The manholes and utility pits within the Project Site and along the fresh water mains. Each manhole/ utility pit should be monitored with two measurements (at mid depth and base). Each measurement should be monitored for a minimum of 10 minutes. A steady reading and peak reading should be recorded at each manhole/ utility pit and for each measurement. The need for venting the manhole/ utility pit and further monitoring will be

reviewed after the initial monitoring.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

S12.7

All construction, operation and maintenance personnel working on-site as well as visitors should be made aware of the hazards of landfill gas and its possible presence on-site. This should be achieved through a combination of posting warning signs in prominent places and also by access to detailed information on

landfill gas hazards and the designs and procedural means by which these hazards are being minimized on-site.

All area/ Detailed design/ During construction/operation

Contractor(s)

ü

ü

ü

Implemented

 

Note: D - Design stage C - Construction O - Operation

 

 

 

 

 

Appendix C

 

Impact Monitoring Schedule

 

 

 

 

 

 

 

Sun

Mon

Tue

Wed

Thu

Fri

Sat

 

 

 

 

 

1

2

 

 

 

 

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb:08:00 - 09:54

3

4

5

6

7

8

9

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood:08:00 - 10:50

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood:08:53 - 12:23

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb: 08:00 - 09:12

10

11

12

13

14

15

16

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb:08:00 - 10:35

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33,  WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb:08:54 - 12:24

(Cancelled)

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb:10:30 - 14:00

17

18

19

20

21

22

23

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood: 08:00-11:11

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood: 09:38 - 13:08

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb: 08:00 - 09:15

24

25

26

27

28

29

30

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb: 08:00 - 10:38

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb: 08:38 - 12:08

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb: 09:51 - 13:21

 

Remarks:

1. Monitoring Parameters: Dissolved oxygen, Temperature, pH, Turbidity, Salinity, Suspended Solids, Iron, Total Residual Chlorine

2. Typhoon Signal No.3 was hosted on 14 November 2024. Due to the safety reasons, the monitoring was cancelled. Note:

- Due to safety concern of vessel transportation earlier than 0700, Water Quality Monitoring would start at 0800.

- Prioritized routing: Mid-ebb: CE→WSR16→WSR37→WSR36→WSR33→Remaining stations and Mid-flood: CF→WSR1→WSR2→WSR3→WSR4→Remaining stations

 

Sun

Mon

Tue

Wed

Thu

Fri

Sat

1

2

3

4

5

6

7

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood: 08:04-11:34

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood: 08:22-11:52

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood: 10:15-13:45

8

9

10

11

12

13

14

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood:08:00 - 09:57

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb:08:00 - 11:04

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb: 09:29 - 12:59

15

16

17

18

19

20

21

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood: 08:00-10:14

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood: 08:16-11:46

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood:09:37 - 13:07

22

23

24

25

26

27

28

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb: 08:00-09:03

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb: 08:00 - 10:33

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-ebb: 09:20 - 11:44

29

30

31

 

 

 

 

 

 

 

 

Impact Water Quality monitoring for

CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1, NF2, NF3

 

Monitoring Period: Mid-flood: 08:00 - 10:51

 

 

 

 

 

Remarks:

1. Monitoring Parameters: Dissolved oxygen, Temperature, pH, Turbidity, Salinity, Suspended Solids, Iron, Total Residual Chlorine

2. Typhoon Signal No.3 was hosted on 14 November 2024. Due to the safety reasons, the monitoring was cancelled. Note:

- Due to safety concern of vessel transportation earlier than 0700, Water Quality Monitoring would start at 0800.

- Prioritized routing: Mid-ebb: CE→WSR16→WSR37→WSR36→WSR33→Remaining stations and Mid-flood: CF→WSR1→WSR2→WSR3→WSR4→Remaining stations

 

Sun

Mon

Tue

Wed

Thu

Fri

Sat

 

 

 

 

 

1

2

 

 

 

 

 

 

 

3

4

5

6

7

8

9

 

 

 

 

 

 

 

10

11

12

13

14

15

16

 

 

 

 

 

 

 

 

 

Landfill Gas Monitoring

 

 

 

 

 

Landfill Gas Monitoring

 

17

18

19

20

21

22

23

 

 

 

 

 

 

 

24

25

26

27

28

29

30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remarks:

1. Monitoring Parameters: Oxygen, Methane, Carbon Dioxide and Barometric Pressure

 

Sun

Mon

Tue

Wed

Thu

Fri

Sat

1

2

3

4

5

6

7

 

 

 

 

 

 

 

8

9

10

11

12

13

14

 

 

 

 

 

 

 

15

16

17

18

19

20

21

 

 

 

 

 

 

 

 

Landfill Gas Monitoring

 

 

 

 

Landfill Gas Monitoring

 

22

23

24

25

26

27

28

 

 

 

 

 

 

 

29

30

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remarks:

1. Monitoring Parameters: Oxygen, Methane, Carbon Dioxide and Barometric Pressure

 

 

Contract No. 13/WSD/17

Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant Ecological Monitoring Schedule

Nov‐24

Sun

Mon

Tue

Wed

Thu

Fri

Sat

 

 

 

 

 

1

2

 

 

 

 

 

 

 

3

4

5

6

7

8

9

 

 

 

 

 

 

 

10

11

12

13

14

15

16

 

 

Regular Operation Phase Coral Monitoring

 

 

 

 

 

17

18

19

20

21

22

23

 

 

 

 

 

 

 

24

25

26

27

28

29

30

 

 

 

 

 

 

 

The schedule may change due to unforeseen circumstances (adverse weather, etc.)

 

 

Contract No. 13/WSD/17

Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant Tentative Ecological Monitoring Schedule

Dec-24

 

Mon

Tue

Wed

Thu

Fri

Sat

1

2

3

4

5

6

7

 

 

 

 

 

 

 

8

9

10

11

12

13

14

 

 

 

 

 

 

 

15

16

17

18

19

20

21

 

 

 

 

 

 

 

22

23

24

25

26

27

28

 

 

Regular Operation Phase Coral Monitoring

 

 

 

 

 

29

30

31

 

 

 

 

 

 

 

 

 

 

 

The schedule may change due to unforeseen circumstances (adverse weather, etc.)

 

 

 

 

 

Appendix D

 

Event / Action Plan

 

 

 

 

 

Table D1             Event and Action Plan for Water Quality Monitoring

Table D2             Event and Action Plan for Ecology during Operation Phase

Table D3             Event and Action Plan for Operation Phase Coral Monitoring

Table D4             Event and Action Plan for Operation Phase LFG Hazard

 

 

 

 

 

 

Appendix E

 

Water           Quality           Monitoring Equipment and Landfill Gas Equipment Calibration Certification

 

 

 

 

 

 

 

 

 

 

Appendix F

 

Water  Quality  Monitoring  Data  & Landfill Gas Monitoring Data

 

 

 

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

CE

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

8:00:00 AM

8.59

8.12

33.04

27.57

2.57

3.00

<0.1

 

<0.01

CE

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

8:00:00 AM

8.45

8.11

33.14

27.54

2.69

5.00

<0.1

 

<0.01

CE

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

11

8:01:00 AM

8.59

8.13

33.06

27.52

2.61

4.00

<0.1

 

<0.01

CE

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

11

8:01:00 AM

8.44

8.15

33.10

27.47

2.66

4.00

<0.1

 

<0.01

CE

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

21

8:02:00 AM

8.57

8.09

33.10

27.50

2.63

2.50

<0.1

 

<0.01

CE

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

21

8:02:00 AM

8.51

8.09

33.14

27.49

2.52

3.00

<0.1

 

<0.01

CF

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

11:08:00 AM

9.13

8.34

32.56

27.52

2.33

4.00

<0.1

 

<0.01

CF

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

11:08:00 AM

9.21

8.41

32.57

27.51

2.35

4.00

<0.1

 

<0.01

CF

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

10

11:09:00 AM

9.23

8.34

32.47

27.55

2.40

5.00

<0.1

 

<0.01

CF

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

10

11:09:00 AM

9.09

8.36

32.48

27.50

2.35

8.00

<0.1

 

<0.01

CF

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

18

11:10:00 AM

9.26

8.35

32.48

27.59

2.27

8.00

<0.1

 

<0.01

CF

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

18

11:10:00 AM

9.15

8.37

32.60

27.52

2.36

5.00

<0.1

 

<0.01

WSR01

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:44:00 AM

8.56

8.14

32.38

27.79

1.43

3.00

<0.1

 

<0.01

WSR01

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:44:00 AM

8.50

8.12

32.40

27.80

1.35

5.00

<0.1

 

<0.01

WSR01

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

5

10:45:00 AM

8.49

8.15

32.33

27.72

1.36

5.00

<0.1

 

<0.01

WSR01

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

5

10:45:00 AM

8.60

8.15

32.31

27.81

1.41

4.00

<0.1

 

<0.01

WSR01

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

8

10:46:00 AM

8.62

8.10

32.29

27.78

1.44

3.00

<0.1

 

<0.01

WSR01

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

8

10:46:00 AM

8.62

8.16

32.35

27.80

1.34

5.00

<0.1

 

<0.01

WSR02

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:23:00 AM

8.00

8.23

33.25

27.55

2.13

6.00

<0.1

 

<0.01

WSR02

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:23:00 AM

7.93

8.21

33.30

27.56

2.19

6.00

<0.1

 

<0.01

WSR02

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

5

10:24:00 AM

8.02

8.21

33.28

27.60

2.20

2.50

<0.1

 

<0.01

WSR02

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

5

10:24:00 AM

8.00

8.25

33.30

27.59

2.18

2.50

<0.1

 

<0.01

WSR02

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

8

10:25:00 AM

8.09

8.22

33.18

27.57

2.16

4.00

<0.1

 

<0.01

WSR02

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

8

10:25:00 AM

8.05

8.23

33.15

27.54

2.12

7.00

<0.1

 

<0.01

WSR03

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:07:00 AM

9.24

8.22

32.33

27.74

1.98

5.00

<0.1

 

<0.01

WSR03

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:07:00 AM

9.22

8.22

32.34

27.80

1.91

3.00

<0.1

 

<0.01

WSR03

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

10:08:00 AM

9.22

8.15

32.34

27.80

1.93

4.00

<0.1

 

<0.01

WSR03

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

10:08:00 AM

9.12

8.22

32.27

27.72

1.95

5.00

<0.1

 

<0.01

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

WSR03

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

8

10:09:00 AM

9.25

8.17

32.24

27.79

1.94

4.00

<0.1

 

<0.01

WSR03

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

8

10:09:00 AM

9.16

8.17

32.26

27.74

1.99

3.00

<0.1

 

<0.01

WSR04

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:52:00 AM

8.63

8.25

32.24

27.61

2.14

5.00

<0.1

 

<0.01

WSR04

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:52:00 AM

8.64

8.23

32.24

27.68

2.12

6.00

<0.1

 

<0.01

WSR04

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

9:53:00 AM

8.78

8.26

32.25

27.63

2.17

4.00

<0.1

 

<0.01

WSR04

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

9:53:00 AM

8.67

8.23

32.16

27.61

2.18

5.00

<0.1

 

<0.01

WSR04

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

6

9:54:00 AM

8.73

8.24

32.23

27.71

2.17

6.00

<0.1

 

<0.01

WSR04

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

6

9:54:00 AM

8.68

8.24

32.15

27.64

2.11

5.00

<0.1

 

<0.01

WSR16

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

8:23:00 AM

8.72

8.29

32.12

27.44

1.37

8.00

<0.1

 

<0.01

WSR16

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

8:23:00 AM

8.83

8.29

32.04

27.38

1.42

6.00

<0.1

 

<0.01

WSR16

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

8

8:24:00 AM

8.79

8.28

32.07

27.41

1.53

5.00

<0.1

 

<0.01

WSR16

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

8

8:24:00 AM

8.78

8.29

32.15

27.40

1.39

7.00

<0.1

 

<0.01

WSR16

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

15

8:25:00 AM

8.75

8.33

32.11

27.40

1.44

4.00

<0.1

 

<0.01

WSR16

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

15

8:25:00 AM

8.83

8.28

32.04

27.43

1.37

7.00

<0.1

 

<0.01

WSR33

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:37:00 AM

8.92

8.28

33.06

27.85

2.06

6.00

<0.1

 

<0.01

WSR33

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:37:00 AM

9.08

8.29

33.06

27.83

2.11

7.00

<0.1

 

<0.01

WSR33

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

9:38:00 AM

8.96

8.29

33.09

27.85

2.15

8.00

<0.1

 

<0.01

WSR33

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

9:38:00 AM

8.94

8.31

33.07

27.85

2.20

5.00

<0.1

 

<0.01

WSR33

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

6

9:39:00 AM

8.91

8.30

33.05

27.88

2.09

5.00

<0.1

 

<0.01

WSR33

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

6

9:39:00 AM

9.05

8.29

33.08

27.82

2.11

6.00

<0.1

 

<0.01

WSR36

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:21:00 AM

9.14

8.15

31.63

27.36

1.62

7.00

<0.1

 

<0.01

WSR36

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:21:00 AM

9.12

8.13

31.69

27.32

1.64

11.00

<0.1

 

<0.01

WSR36

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

3

9:22:00 AM

9.09

8.18

31.55

27.28

1.60

4.00

<0.1

 

<0.01

WSR36

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

3

9:22:00 AM

9.08

8.20

31.57

27.33

1.61

5.00

<0.1

 

<0.01

WSR36

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

6

9:22:00 AM

9.13

8.19

31.69

27.36

1.66

8.00

<0.1

 

<0.01

WSR36

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

6

9:22:00 AM

9.08

8.18

31.64

27.29

1.59

7.00

<0.1

 

<0.01

WSR37

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:15:00 AM

9.09

8.27

32.48

27.78

1.65

9.00

<0.1

 

<0.01

WSR37

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:15:00 AM

9.08

8.31

32.53

27.80

1.62

10.00

<0.1

 

<0.01

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

WSR37

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

9:16:00 AM

9.04

8.26

32.48

27.80

1.66

5.00

<0.1

 

<0.01

WSR37

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

9:16:00 AM

9.17

8.26

32.51

27.88

1.64

5.00

<0.1

 

<0.01

WSR37

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

7

9:17:00 AM

9.18

8.32

32.48

27.83

1.66

9.00

<0.1

 

<0.01

WSR37

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

7

9:17:00 AM

9.16

8.26

32.51

27.77

1.70

6.00

<0.1

 

<0.01

NF1

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

8:45:00 AM

8.31

8.18

33.19

27.79

1.39

8.00

<0.1

 

<0.01

NF1

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

8:45:00 AM

8.19

8.17

33.20

27.83

1.43

3.00

<0.1

 

<0.01

NF1

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

7

8:46:00 AM

8.35

8.23

33.23

27.84

1.44

4.00

<0.1

 

<0.01

NF1

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

7

8:46:00 AM

8.25

8.21

33.24

27.84

1.43

7.00

<0.1

 

<0.01

NF1

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

12

8:47:00 AM

8.25

8.18

33.14

27.86

1.43

4.00

<0.1

 

<0.01

NF1

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

12

8:47:00 AM

8.34

8.21

33.21

27.87

1.44

3.00

<0.1

 

<0.01

NF2

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:01:00 AM

9.24

8.16

32.39

27.54

1.76

6.00

<0.1

 

<0.01

NF2

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:01:00 AM

9.07

8.18

32.24

27.48

1.75

5.00

<0.1

 

<0.01

NF2

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

5

9:02:00 AM

9.11

8.20

32.38

27.49

1.72

4.00

<0.1

 

<0.01

NF2

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

5

9:02:00 AM

9.08

8.17

32.25

27.57

1.76

6.00

<0.1

 

<0.01

NF2

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

10

9:03:00 AM

9.10

8.21

32.36

27.53

1.73

2.50

<0.1

 

<0.01

NF2

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

10

9:03:00 AM

9.11

8.15

32.26

27.50

1.75

5.00

<0.1

 

<0.01

NF3

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:09:00 AM

8.79

8.12

32.79

27.71

2.16

5.00

<0.1

 

<0.01

NF3

2/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

9:09:00 AM

8.76

8.08

32.73

27.74

2.12

2.50

<0.1

 

<0.01

NF3

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

6

9:10:00 AM

8.80

8.07

32.68

27.72

2.15

3.00

<0.1

 

<0.01

NF3

2/11/2024

Cloudy

Mid-Ebb

Moderate

M

6

9:10:00 AM

8.89

8.09

32.71

27.64

2.16

6.00

<0.1

 

<0.01

NF3

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

11

9:11:00 AM

8.80

8.06

32.74

27.70

2.18

4.00

<0.1

 

<0.01

NF3

2/11/2024

Cloudy

Mid-Ebb

Moderate

B

11

9:11:00 AM

8.86

8.10

32.75

27.72

2.22

2.50

<0.1

 

<0.01

CE

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

11:18:00 AM

8.98

8.23

31.72

27.22

2.23

6.00

<0.1

 

<0.01

CE

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

11:18:00 AM

8.90

8.27

31.88

27.15

2.26

3.00

<0.1

 

<0.01

CE

5/11/2024

Sunny

Mid-Flood

Moderate

M

12

11:19:00 AM

8.85

8.26

31.88

27.23

2.28

3.00

<0.1

 

<0.01

CE

5/11/2024

Sunny

Mid-Flood

Moderate

M

12

11:19:00 AM

9.02

8.27

31.73

27.16

2.25

2.50

<0.1

 

<0.01

CE

5/11/2024

Sunny

Mid-Flood

Moderate

B

24

11:20:00 AM

8.90

8.24

31.78

27.16

2.29

5.00

<0.1

 

<0.01

CE

5/11/2024

Sunny

Mid-Flood

Moderate

B

24

11:20:00 AM

8.96

8.24

31.74

27.16

2.27

3.00

<0.1

 

<0.01

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

CF

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

8:06:00 AM

8.57

8.25

31.52

27.20

2.51

2.50

<0.1

 

<0.01

CF

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

8:06:00 AM

8.47

8.20

31.66

27.13

2.52

3.00

<0.1

 

<0.01

CF

5/11/2024

Sunny

Mid-Flood

Moderate

M

11

8:07:00 AM

8.62

8.25

31.66

27.12

2.56

2.50

<0.1

 

<0.01

CF

5/11/2024

Sunny

Mid-Flood

Moderate

M

11

8:07:00 AM

8.51

8.22

31.61

27.16

2.51

2.50

<0.1

 

<0.01

CF

5/11/2024

Sunny

Mid-Flood

Moderate

B

20

8:08:00 AM

8.64

8.25

31.54

27.13

2.53

4.00

<0.1

 

<0.01

CF

5/11/2024

Sunny

Mid-Flood

Moderate

B

20

8:08:00 AM

8.62

8.20

31.69

27.16

2.49

3.00

<0.1

 

<0.01

WSR01

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

8:32:00 AM

8.12

8.22

31.93

27.12

1.51

2.50

<0.1

 

<0.01

WSR01

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

8:32:00 AM

8.00

8.23

31.91

27.08

1.55

3.00

<0.1

 

<0.01

WSR01

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

8:33:00 AM

8.11

8.19

32.06

27.12

1.46

2.50

<0.1

 

<0.01

WSR01

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

8:33:00 AM

8.03

8.25

31.92

27.14

1.53

5.00

<0.1

 

<0.01

WSR01

5/11/2024

Sunny

Mid-Flood

Moderate

B

8

8:34:00 AM

8.17

8.24

31.96

27.09

1.51

3.00

<0.1

 

<0.01

WSR01

5/11/2024

Sunny

Mid-Flood

Moderate

B

8

8:34:00 AM

8.14

8.25

32.07

27.10

1.54

4.00

<0.1

 

<0.01

WSR02

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

8:53:00 AM

7.91

8.17

32.30

27.31

1.55

10.00

<0.1

 

<0.01

WSR02

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

8:53:00 AM

8.05

8.20

32.15

27.24

1.54

5.00

<0.1

 

<0.01

WSR02

5/11/2024

Sunny

Mid-Flood

Moderate

M

5

8:54:00 AM

7.92

8.17

32.21

27.28

1.60

3.00

<0.1

 

<0.01

WSR02

5/11/2024

Sunny

Mid-Flood

Moderate

M

5

8:54:00 AM

8.00

8.14

32.27

27.24

1.62

4.00

<0.1

 

<0.01

WSR02

5/11/2024

Sunny

Mid-Flood

Moderate

B

9

8:55:00 AM

8.04

8.17

32.16

27.28

1.57

3.00

<0.1

 

<0.01

WSR02

5/11/2024

Sunny

Mid-Flood

Moderate

B

9

8:55:00 AM

7.91

8.20

32.31

27.33

1.49

4.00

<0.1

 

<0.01

WSR03

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

9:09:00 AM

8.47

8.04

32.27

27.19

1.57

4.00

<0.1

 

<0.01

WSR03

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

9:09:00 AM

8.45

8.03

32.14

27.25

1.62

3.00

<0.1

 

<0.01

WSR03

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

9:10:00 AM

8.46

8.02

32.19

27.22

1.57

4.00

<0.1

 

<0.01

WSR03

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

9:10:00 AM

8.54

8.05

32.19

27.20

1.60

4.00

<0.1

 

<0.01

WSR03

5/11/2024

Sunny

Mid-Flood

Moderate

B

7

9:11:00 AM

8.49

8.05

32.09

27.23

1.65

4.00

<0.1

 

<0.01

WSR03

5/11/2024

Sunny

Mid-Flood

Moderate

B

7

9:11:00 AM

8.43

8.03

32.26

27.23

1.58

2.50

<0.1

 

<0.01

WSR04

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

9:25:00 AM

8.21

8.29

32.24

27.06

1.90

3.00

<0.1

 

<0.01

WSR04

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

9:25:00 AM

8.11

8.29

32.25

27.03

1.97

3.00

<0.1

 

<0.01

WSR04

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

9:26:00 AM

8.18

8.33

32.14

27.07

1.95

4.00

<0.1

 

<0.01

WSR04

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

9:26:00 AM

8.22

8.30

32.15

27.06

1.94

7.00

<0.1

 

<0.01

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

WSR04

5/11/2024

Sunny

Mid-Flood

Moderate

B

7

9:27:00 AM

8.27

8.33

32.21

27.05

1.88

3.00

<0.1

 

<0.01

WSR04

5/11/2024

Sunny

Mid-Flood

Moderate

B

7

9:27:00 AM

8.18

8.29

32.09

27.10

1.95

3.00

<0.1

 

<0.01

WSR16

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:55:00 AM

8.20

8.18

32.55

27.06

2.06

6.00

<0.1

 

<0.01

WSR16

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:55:00 AM

8.09

8.15

32.46

27.00

2.10

6.00

<0.1

 

<0.01

WSR16

5/11/2024

Sunny

Mid-Flood

Moderate

M

8

10:56:00 AM

8.18

8.15

32.59

27.01

2.08

5.00

<0.1

 

<0.01

WSR16

5/11/2024

Sunny

Mid-Flood

Moderate

M

8

10:56:00 AM

8.20

8.14

32.47

27.07

2.03

4.00

<0.1

 

<0.01

WSR16

5/11/2024

Sunny

Mid-Flood

Moderate

B

15

10:57:00 AM

8.05

8.14

32.45

27.00

2.01

2.50

<0.1

 

<0.01

WSR16

5/11/2024

Sunny

Mid-Flood

Moderate

B

15

10:57:00 AM

8.06

8.17

32.43

27.02

2.04

4.00

<0.1

 

<0.01

WSR33

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

9:42:00 AM

9.08

8.19

31.94

27.41

1.47

3.00

<0.1

 

<0.01

WSR33

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

9:42:00 AM

9.09

8.22

31.98

27.43

1.31

2.50

<0.1

 

<0.01

WSR33

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

9:43:00 AM

9.01

8.22

31.94

27.45

1.42

2.50

<0.1

 

<0.01

WSR33

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

9:43:00 AM

9.09

8.20

32.04

27.41

1.33

2.50

<0.1

 

<0.01

WSR33

5/11/2024

Sunny

Mid-Flood

Moderate

B

7

9:44:00 AM

8.94

8.22

32.01

27.45

1.37

2.50

<0.1

 

<0.01

WSR33

5/11/2024

Sunny

Mid-Flood

Moderate

B

7

9:44:00 AM

9.06

8.22

32.01

27.46

1.45

4.00

<0.1

 

<0.01

WSR36

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

9:59:00 AM

8.77

8.11

31.17

27.25

1.63

2.50

<0.1

 

<0.01

WSR36

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

9:59:00 AM

8.88

8.11

31.33

27.23

1.61

4.00

<0.1

 

<0.01

WSR36

5/11/2024

Sunny

Mid-Flood

Moderate

M

3

10:00:00 AM

8.86

8.09

31.20

27.24

1.65

2.50

<0.1

 

<0.01

WSR36

5/11/2024

Sunny

Mid-Flood

Moderate

M

3

10:00:00 AM

8.85

8.11

31.24

27.27

1.62

4.00

<0.1

 

<0.01

WSR36

5/11/2024

Sunny

Mid-Flood

Moderate

B

5

10:00:00 AM

8.88

8.14

31.25

27.29

1.66

2.50

<0.1

 

<0.01

WSR36

5/11/2024

Sunny

Mid-Flood

Moderate

B

5

10:00:00 AM

8.85

8.08

31.25

27.29

1.70

4.00

<0.1

 

<0.01

WSR37

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:16:00 AM

8.64

8.18

32.40

27.12

2.20

2.50

<0.1

 

<0.01

WSR37

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:16:00 AM

8.79

8.19

32.39

27.08

2.17

2.50

<0.1

 

<0.01

WSR37

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

10:17:00 AM

8.77

8.18

32.35

27.10

2.21

7.00

<0.1

 

<0.01

WSR37

5/11/2024

Sunny

Mid-Flood

Moderate

M

4

10:17:00 AM

8.67

8.14

32.37

27.08

2.19

7.00

<0.1

 

<0.01

WSR37

5/11/2024

Sunny

Mid-Flood

Moderate

B

7

10:18:00 AM

8.64

8.19

32.42

27.10

2.19

4.00

<0.1

 

<0.01

WSR37

5/11/2024

Sunny

Mid-Flood

Moderate

B

7

10:18:00 AM

8.82

8.15

32.47

27.09

2.21

3.00

<0.1

 

<0.01

NF1

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:40:00 AM

8.39

8.07

32.13

27.20

1.73

3.00

<0.1

 

<0.01

NF1

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:40:00 AM

8.44

8.09

32.06

27.22

1.79

5.00

<0.1

 

<0.01

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

NF1

5/11/2024

Sunny

Mid-Flood

Moderate

M

7

10:41:00 AM

8.32

8.10

32.00

27.22

1.76

3.00

<0.1

 

<0.01

NF1

5/11/2024

Sunny

Mid-Flood

Moderate

M

7

10:41:00 AM

8.33

8.06

32.02

27.23

1.79

2.50

<0.1

 

<0.01

NF1

5/11/2024

Sunny

Mid-Flood

Moderate

B

13

10:42:00 AM

8.40

8.09

32.12

27.19

1.73

5.00

<0.1

 

<0.01

NF1

5/11/2024

Sunny

Mid-Flood

Moderate

B

13

10:42:00 AM

8.38

8.11

32.02

27.20

1.72

2.50

<0.1

 

<0.01

NF2

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:32:00 AM

8.28

8.13

31.69

27.15

2.13

2.50

<0.1

 

<0.01

NF2

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:32:00 AM

8.34

8.10

31.70

27.18

2.07

6.00

<0.1

 

<0.01

NF2

5/11/2024

Sunny

Mid-Flood

Moderate

M

5

10:33:00 AM

8.32

8.13

31.71

27.20

2.05

3.00

<0.1

 

<0.01

NF2

5/11/2024

Sunny

Mid-Flood

Moderate

M

5

10:33:00 AM

8.28

8.10

31.78

27.20

2.08

5.00

<0.1

 

<0.01

NF2

5/11/2024

Sunny

Mid-Flood

Moderate

B

10

10:34:00 AM

8.20

8.11

31.65

27.20

2.14

6.00

<0.1

 

<0.01

NF2

5/11/2024

Sunny

Mid-Flood

Moderate

B

10

10:34:00 AM

8.33

8.08

31.68

27.21

2.06

4.00

<0.1

 

<0.01

NF3

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:25:00 AM

8.62

8.25

32.62

27.24

1.44

2.50

<0.1

 

<0.01

NF3

5/11/2024

Sunny

Mid-Flood

Moderate

S

1

10:25:00 AM

8.58

8.20

32.53

27.24

1.42

3.00

<0.1

 

<0.01

NF3

5/11/2024

Sunny

Mid-Flood

Moderate

M

6

10:26:00 AM

8.59

8.24

32.61

27.21

1.48

2.50

<0.1

 

<0.01

NF3

5/11/2024

Sunny

Mid-Flood

Moderate

M

6

10:26:00 AM

8.57

8.20

32.59

27.25

1.53

2.50

<0.1

 

<0.01

NF3

5/11/2024

Sunny

Mid-Flood

Moderate

B

11

10:27:00 AM

8.45

8.23

32.46

27.25

1.48

4.00

<0.1

 

<0.01

NF3

5/11/2024

Sunny

Mid-Flood

Moderate

B

11

10:27:00 AM

8.51

8.23

32.51

27.21

1.42

2.50

<0.1

 

<0.01

CE

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

12:11:00 PM

8.59

8.36

32.67

26.98

2.36

2.50

<0.1

 

<0.01

CE

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

12:11:00 PM

8.65

8.30

32.67

27.02

2.35

3.00

<0.1

 

<0.01

CE

7/11/2024

Cloudy

Mid-Flood

Moderate

M

10

12:12:00 PM

8.74

8.34

32.72

27.00

2.27

4.00

<0.1

 

<0.01

CE

7/11/2024

Cloudy

Mid-Flood

Moderate

M

10

12:12:00 PM

8.60

8.34

32.67

27.02

2.25

2.50

<0.1

 

<0.01

CE

7/11/2024

Cloudy

Mid-Flood

Moderate

B

20

12:13:00 PM

8.74

8.30

32.70

27.03

2.33

3.00

<0.1

 

<0.01

CE

7/11/2024

Cloudy

Mid-Flood

Moderate

B

20

12:13:00 PM

8.68

8.32

32.63

26.99

2.36

2.50

<0.1

 

<0.01

CF

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

8:53:00 AM

8.85

8.17

31.79

26.88

2.56

3.00

<0.1

 

<0.01

CF

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

8:53:00 AM

8.90

8.16

31.67

26.87

2.53

5.00

<0.1

 

<0.01

CF

7/11/2024

Cloudy

Mid-Flood

Moderate

M

10

8:54:00 AM

8.90

8.18

31.76

26.90

2.55

2.50

<0.1

 

<0.01

CF

7/11/2024

Cloudy

Mid-Flood

Moderate

M

10

8:54:00 AM

8.89

8.17

31.71

26.88

2.61

2.50

<0.1

 

<0.01

CF

7/11/2024

Cloudy

Mid-Flood

Moderate

B

18

8:55:00 AM

8.93

8.18

31.77

26.92

2.66

2.50

<0.1

 

<0.01

CF

7/11/2024

Cloudy

Mid-Flood

Moderate

B

18

8:55:00 AM

8.87

8.13

31.69

26.88

2.59

2.50

<0.1

 

<0.01

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

WSR01

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

9:19:00 AM

8.13

8.12

32.19

27.10

1.50

3.00

<0.1

 

<0.01

WSR01

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

9:19:00 AM

7.99

8.13

32.20

27.07

1.51

5.00

<0.1

 

<0.01

WSR01

7/11/2024

Cloudy

Mid-Flood

Moderate

M

5

9:20:00 AM

7.98

8.11

32.29

27.09

1.70

4.00

<0.1

 

<0.01

WSR01

7/11/2024

Cloudy

Mid-Flood

Moderate

M

5

9:20:00 AM

8.09

8.09

32.21

27.08

1.51

2.50

<0.1

 

<0.01

WSR01

7/11/2024

Cloudy

Mid-Flood

Moderate

B

8

9:21:00 AM

8.16

8.09

32.21

27.06

1.52

4.00

<0.1

 

<0.01

WSR01

7/11/2024

Cloudy

Mid-Flood

Moderate

B

8

9:21:00 AM

8.00

8.14

32.30

27.14

1.68

2.50

<0.1

 

<0.01

WSR02

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

9:40:00 AM

8.79

8.28

31.31

27.08

2.10

2.50

<0.1

 

<0.01

WSR02

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

9:40:00 AM

8.65

8.28

31.31

27.10

2.09

3.00

<0.1

 

<0.01

WSR02

7/11/2024

Cloudy

Mid-Flood

Moderate

M

5

9:41:00 AM

8.73

8.24

31.26

27.12

2.09

5.00

<0.1

 

<0.01

WSR02

7/11/2024

Cloudy

Mid-Flood

Moderate

M

5

9:41:00 AM

8.71

8.29

31.31

27.06

2.13

4.00

<0.1

 

<0.01

WSR02

7/11/2024

Cloudy

Mid-Flood

Moderate

B

9

9:42:00 AM

8.72

8.30

31.29

27.08

2.13

3.00

<0.1

 

<0.01

WSR02

7/11/2024

Cloudy

Mid-Flood

Moderate

B

9

9:42:00 AM

8.77

8.29

31.32

27.07

2.09

2.50

<0.1

 

<0.01

WSR03

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

9:57:00 AM

8.35

8.32

32.26

27.23

1.85

2.50

<0.1

 

<0.01

WSR03

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

9:57:00 AM

8.47

8.36

32.23

27.23

1.88

2.50

<0.1

 

<0.01

WSR03

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

9:58:00 AM

8.42

8.36

32.26

27.22

1.86

2.50

<0.1

 

<0.01

WSR03

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

9:58:00 AM

8.39

8.34

32.23

27.28

1.90

2.50

<0.1

 

<0.01

WSR03

7/11/2024

Cloudy

Mid-Flood

Moderate

B

7

9:59:00 AM

8.39

8.32

32.23

27.20

1.87

6.00

<0.1

 

<0.01

WSR03

7/11/2024

Cloudy

Mid-Flood

Moderate

B

7

9:59:00 AM

8.32

8.32

32.18

27.20

1.88

5.00

<0.1

 

<0.01

WSR04

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

10:15:00 AM

8.20

8.08

32.27

27.32

1.80

3.00

<0.1

 

<0.01

WSR04

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

10:15:00 AM

8.07

8.12

32.16

27.28

1.81

4.00

<0.1

 

<0.01

WSR04

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

10:16:00 AM

8.05

8.06

32.22

27.31

1.86

5.00

<0.1

 

<0.01

WSR04

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

10:16:00 AM

8.18

8.07

32.15

27.28

1.81

3.00

<0.1

 

<0.01

WSR04

7/11/2024

Cloudy

Mid-Flood

Moderate

B

6

10:17:00 AM

8.20

8.08

32.28

27.29

1.81

2.50

<0.1

 

<0.01

WSR04

7/11/2024

Cloudy

Mid-Flood

Moderate

B

6

10:17:00 AM

8.13

8.07

32.20

27.31

1.79

5.00

<0.1

 

<0.01

WSR16

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:48:00 AM

8.99

8.14

32.27

27.25

1.57

2.50

<0.1

 

<0.01

WSR16

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:48:00 AM

8.97

8.16

32.33

27.22

1.60

5.00

<0.1

 

<0.01

WSR16

7/11/2024

Cloudy

Mid-Flood

Moderate

M

8

11:49:00 AM

8.82

8.17

32.26

27.24

1.64

5.00

<0.1

 

<0.01

WSR16

7/11/2024

Cloudy

Mid-Flood

Moderate

M

8

11:49:00 AM

8.84

8.20

32.36

27.21

1.64

4.00

<0.1

 

<0.01

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

WSR16

7/11/2024

Cloudy

Mid-Flood

Moderate

B

14

11:50:00 AM

8.93

8.19

32.34

27.23

1.59

3.00

<0.1

 

<0.01

WSR16

7/11/2024

Cloudy

Mid-Flood

Moderate

B

14

11:50:00 AM

8.97

8.19

32.26

27.27

1.57

5.00

<0.1

 

<0.01

WSR33

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

10:32:00 AM

8.51

8.17

31.36

27.23

1.78

4.00

<0.1

 

<0.01

WSR33

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

10:32:00 AM

8.51

8.15

31.36

27.22

1.76

6.00

<0.1

 

<0.01

WSR33

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

10:33:00 AM

8.40

8.19

31.27

27.25

1.77

4.00

<0.1

 

<0.01

WSR33

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

10:33:00 AM

8.40

8.16

31.35

27.20

1.78

6.00

<0.1

 

<0.01

WSR33

7/11/2024

Cloudy

Mid-Flood

Moderate

B

7

10:34:00 AM

8.52

8.14

31.29

27.28

1.81

4.00

<0.1

 

<0.01

WSR33

7/11/2024

Cloudy

Mid-Flood

Moderate

B

7

10:34:00 AM

8.47

8.19

31.28

27.27

1.75

2.50

<0.1

 

<0.01

WSR36

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

10:51:00 AM

9.00

8.20

31.45

26.87

1.94

8.00

<0.1

 

<0.01

WSR36

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

10:51:00 AM

9.02

8.15

31.41

26.88

2.00

5.00

<0.1

 

<0.01

WSR36

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

10:52:00 AM

9.09

8.15

31.51

26.84

1.97

5.00

<0.1

 

<0.01

WSR36

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

10:52:00 AM

8.99

8.20

31.49

26.84

1.93

4.00

<0.1

 

<0.01

WSR36

7/11/2024

Cloudy

Mid-Flood

Moderate

B

7

10:52:00 AM

9.08

8.14

31.44

26.86

1.94

2.50

<0.1

 

<0.01

WSR36

7/11/2024

Cloudy

Mid-Flood

Moderate

B

7

10:52:00 AM

9.06

8.17

31.41

26.89

2.00

4.00

<0.1

 

<0.01

WSR37

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:08:00 AM

8.85

8.29

32.53

27.11

1.66

3.00

<0.1

 

<0.01

WSR37

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:08:00 AM

8.77

8.29

32.55

27.12

1.67

5.00

<0.1

 

<0.01

WSR37

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

11:09:00 AM

8.89

8.29

32.62

27.06

1.69

3.00

<0.1

 

<0.01

WSR37

7/11/2024

Cloudy

Mid-Flood

Moderate

M

4

11:09:00 AM

8.79

8.30

32.57

27.11

1.66

3.00

<0.1

 

<0.01

WSR37

7/11/2024

Cloudy

Mid-Flood

Moderate

B

7

11:10:00 AM

8.79

8.29

32.61

27.12

1.70

6.00

<0.1

 

<0.01

WSR37

7/11/2024

Cloudy

Mid-Flood

Moderate

B

7

11:10:00 AM

8.74

8.28

32.62

27.12

1.65

2.50

<0.1

 

<0.01

NF1

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:33:00 AM

8.80

8.30

32.60

27.19

1.70

3.00

<0.1

 

<0.01

NF1

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:33:00 AM

8.77

8.25

32.57

27.26

1.70

2.50

<0.1

 

<0.01

NF1

7/11/2024

Cloudy

Mid-Flood

Moderate

M

7

11:34:00 AM

8.77

8.28

32.52

27.26

1.76

2.50

<0.1

 

<0.01

NF1

7/11/2024

Cloudy

Mid-Flood

Moderate

M

7

11:34:00 AM

8.75

8.29

32.48

27.20

1.75

2.50

<0.1

 

<0.01

NF1

7/11/2024

Cloudy

Mid-Flood

Moderate

B

12

11:35:00 AM

8.72

8.26

32.50

27.26

1.75

2.50

<0.1

 

<0.01

NF1

7/11/2024

Cloudy

Mid-Flood

Moderate

B

12

11:35:00 AM

8.80

8.26

32.51

27.23

1.73

5.00

<0.1

 

<0.01

NF2

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:26:00 AM

7.99

8.19

31.53

26.98

1.51

3.00

<0.1

 

<0.01

NF2

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:26:00 AM

8.10

8.18

31.49

27.00

1.71

4.00

<0.1

 

<0.01

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

NF2

7/11/2024

Cloudy

Mid-Flood

Moderate

M

5

11:27:00 AM

8.05

8.19

31.59

27.01

1.53

2.50

<0.1

 

<0.01

NF2

7/11/2024

Cloudy

Mid-Flood

Moderate

M

5

11:27:00 AM

8.02

8.16

31.53

27.02

1.52

2.50

<0.1

 

<0.01

NF2

7/11/2024

Cloudy

Mid-Flood

Moderate

B

9

11:28:00 AM

8.02

8.15

31.59

27.03

1.69

2.50

<0.1

 

<0.01

NF2

7/11/2024

Cloudy

Mid-Flood

Moderate

B

9

11:28:00 AM

8.11

8.16

31.53

27.01

1.71

2.50

<0.1

 

<0.01

NF3

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:19:00 AM

8.79

8.17

32.22

26.86

1.51

2.50

<0.1

 

<0.01

NF3

7/11/2024

Cloudy

Mid-Flood

Moderate

S

1

11:19:00 AM

8.79

8.18

32.12

26.94

1.46

2.50

<0.1

 

<0.01

NF3

7/11/2024

Cloudy

Mid-Flood

Moderate

M

6

11:20:00 AM

8.62

8.22

32.24

26.91

1.51

5.00

<0.1

 

<0.01

NF3

7/11/2024

Cloudy

Mid-Flood

Moderate

M

6

11:20:00 AM

8.62

8.20

32.22

26.86

1.46

3.00

<0.1

 

<0.01

NF3

7/11/2024

Cloudy

Mid-Flood

Moderate

B

11

11:21:00 AM

8.67

8.18

32.25

26.94

1.45

5.00

<0.1

 

<0.01

NF3

7/11/2024

Cloudy

Mid-Flood

Moderate

B

11

11:21:00 AM

8.69

8.16

32.18

26.90

1.47

3.00

<0.1

 

<0.01

CE

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

8:04:00 AM

8.11

8.00

32.12

27.07

2.56

4.00

<0.1

 

<0.01

CE

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

8:04:00 AM

8.05

8.02

32.15

27.07

2.60

3.00

<0.1

 

<0.01

CE

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

11

8:05:00 AM

8.10

8.04

32.15

27.12

2.60

2.50

<0.1

 

<0.01

CE

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

11

8:05:00 AM

8.10

8.03

32.17

27.09

2.58

2.50

<0.1

 

<0.01

CE

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

21

8:06:00 AM

8.05

8.07

32.21

27.11

2.55

2.50

<0.1

 

<0.01

CE

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

21

8:06:00 AM

8.06

8.06

32.20

27.14

2.56

2.50

<0.1

 

<0.01

CF

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

11:25:00 AM

9.06

8.15

32.08

26.78

2.33

2.50

<0.1

 

<0.01

CF

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

11:25:00 AM

9.05

8.16

32.12

26.79

2.35

2.50

<0.1

 

<0.01

CF

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

10

11:26:00 AM

8.91

8.13

32.16

26.75

2.28

2.50

<0.1

 

<0.01

CF

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

10

11:26:00 AM

8.97

8.13

32.15

26.74

2.21

2.50

<0.1

 

<0.01

CF

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

20

11:27:00 AM

9.04

8.10

32.16

26.76

2.24

2.50

<0.1

 

<0.01

CF

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

20

11:27:00 AM

9.03

8.08

32.12

26.81

2.27

3.00

<0.1

 

<0.01

WSR01

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

11:01:00 AM

7.96

7.99

32.30

27.12

1.79

2.50

<0.1

 

<0.01

WSR01

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

11:01:00 AM

8.03

8.00

32.32

27.14

1.83

2.50

<0.1

 

<0.01

WSR01

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

11:02:00 AM

8.05

7.98

32.27

27.11

1.78

2.50

<0.1

 

<0.01

WSR01

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

11:02:00 AM

7.93

7.99

32.29

27.12

1.76

2.50

<0.1

 

<0.01

WSR01

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

7

11:03:00 AM

8.01

8.05

32.26

27.05

1.80

3.00

<0.1

 

<0.01

WSR01

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

7

11:03:00 AM

7.95

8.04

32.35

27.11

1.83

2.50

<0.1

 

<0.01

 

 

 

Location

Date

Weather

Tide

Sea Condition

Water Level

Depth (m)

Time

DO (mg/L)

pH

Sal (ppt)

Temp ((°C)

Turbidty (NTU)

SS (mg/L)

Iron (mg/L)

Total Residual Chlorine (mg/L)

WSR02

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:41:00 AM

8.57

8.09

32.86

26.94

1.50

2.50

<0.1

 

<0.01

WSR02

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:41:00 AM

8.64

8.12

32.92

26.88

1.51

3.00

<0.1

 

<0.01

WSR02

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

5

10:42:00 AM

8.70

8.06

32.85

26.92

1.50

2.50

<0.1

 

<0.01

WSR02

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

5

10:42:00 AM

8.66

8.11

32.96

26.92

1.55

2.50

<0.1

 

<0.01

WSR02

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

9

10:43:00 AM

8.61

8.12

32.98

26.93

1.54

2.50

<0.1

 

<0.01

WSR02

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

9

10:43:00 AM

8.75

8.11

32.87

26.90

1.50

2.50

<0.1

 

<0.01

WSR03

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:26:00 AM

8.76

8.02

31.57

26.95

1.81

2.50

<0.1

 

<0.01

WSR03

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:26:00 AM

8.74

7.98

31.48

26.91

1.75

2.50

<0.1

 

<0.01

WSR03

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

10:27:00 AM

8.79

7.98

31.55

26.88

1.74

2.50

<0.1

 

<0.01

WSR03

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

10:27:00 AM

8.80

8.05

31.54

26.88

1.76

2.50

<0.1

 

<0.01

WSR03

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

6

10:28:00 AM

8.73

8.06

31.55

26.95

1.77

2.50

<0.1

 

<0.01

WSR03

9/11/2024

Cloudy

Mid-Ebb

Moderate

B

6

10:28:00 AM

8.71

8.04

31.53

26.86

1.73

4.00

<0.1

 

<0.01

WSR04

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:11:00 AM

8.24

7.95

32.75

27.03

2.17

2.50

<0.1

 

<0.01

WSR04

9/11/2024

Cloudy

Mid-Ebb

Moderate

S

1

10:11:00 AM

8.20

7.96

32.75

27.06

2.20

2.50

<0.1

 

<0.01

WSR04

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

10:12:00 AM

8.26

7.97

32.73

27.04

2.16

2.50

<0.1

 

<0.01

WSR04

9/11/2024

Cloudy

Mid-Ebb

Moderate

M

4

10:12:00 AM

8.28

7.98

32.84