Quarterly Environmental Monitoring Report This report has been submitted to ADB by the Borrower and is made publicly available in accordance with ADB’s public communications policy (2005). It does not necessarily reflect the views of ADB. Project Number: LN2612/EI7303 April to June 2014 PHI: Visayas Base-load Power Development Project Prepared by KEPCO SPC Power Corporation Cebu City, Philippines
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Quarterly Environmental Monitoring Report
This report has been submitted to ADB by the Borrower and is made publicly available in accordance with ADB’s public communications policy (2005). It does not necessarily reflect the views of ADB.
I. GENERAL INFORMATION Name of Plant : CEBU POWER PLANT Owner : KEPCO SPC POWER CORPORATION Location : COLON NAGA CITY, CEBU Project Type : 2x103MW Coal‐fired CFBC
Environmental Laws
Permits (See Attachment 5) Date of Issue Expiry Date
PD 1586 ECC ECC‐0511‐013‐206 05‐Dec‐05 ‐
DENR‐EMB RA 9275
DP No. DP‐14‐E‐072230‐013 08‐May‐14 (Att. 5)
08‐May‐15
DENR‐EMB RA 6969
DENR Registry ID DENR‐ID No. 07‐22‐1139 08‐Jun‐11 ‐
CCO Registry CCO‐Hg‐2011‐07‐22‐001 06‐Jan‐12 ‐
DENR‐EMB RA 8749
PO No. POA‐14‐E‐072230‐0040 08‐May‐14 (Att. 5)
08‐May‐15
PNP RA 8294
License to Possess Explosives & Explosive
Ingredients PGB34‐080413‐03835
08‐Apr‐13 (Att. 5)
07‐Apr‐14*
PDEA RA 9165
License to Handle Controlled Precursors and Essential Chemicals
P6‐03412001‐R028‐H P5‐IM‐03412001‐R022‐H
16‐Dec‐13 (Att. 5)
16‐Dec‐14
*Updated permit still not available, PNP renewal application submitted March 2014.
II. INTRODUCTION AND PLANT OPERATION STATUS
This report shall cover the period from April to June 2014 with sampling and testing activities done within the period. Monitoring stations are those approved in the EIS, by DENR, and in the EMP of the project. Unit 1 and Unit 2 are both on full load operation within the coverage period. Below is a table showing the summary of plant performance. Table 1. Cebu Power Plant Performance Status
Month Unit Total Coal
Consumption (tons)
Net Generated Power (MWh)
Average Net Heat Rate (kCal/kWh)
House Load Rate
(%)
Net Efficiency
(%)
Planned Plant
Outages (Days)
Forced Plant
Outages (Days)
April 1 40,587.000 60,495.390 2,616.300 9.15% 32.88% ‐ ‐
June 1 43,572.000 66,096.660 2,583.710 8.51% 33.29% ‐ ‐
2 2,847.000 65,139.360 2,600.740 8.40% 33.07% ‐ ‐
2
III. RESULTS OF ENVIRONMENTAL MONITORING
3.1. RA 8749: AIR ENVIRONMENT
3.1.1. Ambient Air Quality Monitoring System (AAQMS) Results
Ambient air monitoring is important to ensure that the stakeholders are breathing clean air that is within the set standards. The current period is now in the Operations and Maintenance (O&M) regime thus monitoring stations covered are those specified in the ECC and in accordance to DENR’s recommendation. All sampling and analytical procedures conform to those required by the Bureau and are performed by accredited service providers and laboratories. Table 2 summarizes the monitoring activities made within the coverage period. Results of the ambient air parameters monitored at the two (2) continuous stations defined in Table 2 with an averaging time of 24 hours generally concludes that the levels are well within the background and standard values. On the average, the PM‐10, SO2 and NO2 levels at station 1 and station 2 are below the given standards ‐ no exceedances were observed for all parameters. Tables 3 to 5 shows a summary of the monthly data in the AAQMS while Figures 1 to 2 is a summary of the meteorological conditions gathered within the coverage period. Figures 3 to 5 show graphical representations of the data. For the coverage period, the prevailing wind directions are from the East of station 1 with maximum speed of 2.5 mps and from the West of station 2 with a maximum speed of 8 mps. Networking and communication to the central station is still currently being resolved but does not interfere in the monitoring as data can still be manually collected at the two (2) off‐site stations.
Table 2. Ambient Air Monitoring Stations and Parameters
Coverage Period Monitoring Stations Parameters Monitored
April‐June 2014
Continuous Ambient Air Monitoring Stations: STN 1 – North Poblacion Area (Aliganga’s
Residence) STN 2 – Colon Area Near Barangay Hall (Berdan’s
Open Ground) Manual Ambient Air Monitoring Points: STN 3 – Barangay Tangke Basketball Court STN 4 – Along National Road cor. Aliganga St. STN 5 – Near the Pier Area at the Plant Site STN 6 – In front of Mangkikis Chapel, Sitio
Mangkikis STN 7 – at the back of Kading’s Residence (North
Poblacion) – 24‐hr monitoring STN 8 – Colon Brgy Hall STN 9 – Near Ash Village
PM‐10, SO2, NO2, Noise PM 10, SO2, NO2, Noise *Only PM10 and Noise for STN 8 and STN 9.
Table 3. AAQMS Results (April 2014)
Wind Speed
Wind Direction
NO2 PM 10 NOISE SO2Wind Speed
Wind Direction
NO2 PM 10 NOISE SO2
m/s ‐ PPM mg/m3 dB PPM m/s ‐ PPM mg/m3 dB PPM
DENR STD NA NA 0.080 0.150 75.000D 0.070 NA NA 0.080 0.150 75.000
D 0.070 NA
WORLD BANK STD
NA NA 0.0987B
0.150C
70.000E
0.0443A NA NA 0.0987
B0.150
C70.000
E0.0443
A NA
Min 0.900 NA 0.002 0.006 41.500 3.32E‐04 0.500 NA 1.18E‐04 0.004 52.363 5.30E‐04 24hrs
Max 1.700 NA 0.010 0.077 50.700 2.91E‐03 2.800 NA 0.005 0.066 54.146 6.43E‐04 24hrs
Average 1.237 NA 0.006 0.027 46.843 8.71E‐04 1.657 NA 0.003 0.018 53.293 5.85E‐04 month
1 1.40 E 0.0060 0.034 49.900 2.91E‐03 1.000 N 2.326E‐03 0.017 53.175 6.125E‐04 24hrs
30 1.200 ENE 0.006 0.006 42.400 2.11E‐03 1.100 ENE 1.78E‐03 0.018 52.763 6.052E‐04 24hrs
31 ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
D Daytime Target (9am‐6pm) ‐ 75 dB; Morning (5am‐9am) and Evening (6pm‐10pm) Target ‐ 70dB; Nightime Target (10pm‐5am) ‐ 65dBE Daytime and nighttime standards in industrial and commercial areas
BLDL ‐ Below the Lowest Detectable Level; NR ‐ No reading; NA ‐ Not Applicable
Averaging Time
Monthly Ambient Air Quality Monitoring Report (April '14)
Station 1
Date
Station 2
A Interim Target 1‐0.443ppm; Interim Target 2 ‐ 0.0177 ppm; Guideline Value ‐ 0.0071 ppm (Interim Targets are provided in recognition of the need for a staged approach to achieving the
recommended guidelines) (Averaging Time: 24 hrs)B 1‐hour averaging period os recommended in the WHO Ambient Air Quality Guidelines as well as in the US National Ambient Air Quality Standards (NAAQS)
C Interim Target 1‐0.1500 ppm; Interim Target 2‐0.1000 ppm; Interim Target 3‐0.0750 ppm; Guideline Value‐0.0500 ppm (Averaging Time 24hrs)
Table 4. AAQMS Results (May 2014)
Wind Speed
Wind Direction
NO2 PM 10 NOISE SO2Wind Speed
Wind Direction
NO2 PM 10 NOISE SO2
m/s ‐ PPM mg/m3 dB PPM m/s ‐ PPM mg/m3 dB PPM
DENR STD NA NA 0.080 0.150 75.000D 0.070 NA NA 0.080 0.150 75.000
D 0.070 NA
WORLD BANK STD
NA NA 0.0987B
0.150C
70.000E
0.0443A NA NA 0.0987
B0.150
C70.000
E0.0443
A NA
Min 0.600 NA 3.96E‐03 0.002 41.500 4.29E‐04 0.400 NA 0.000 5.96E‐03 52.492 5.40E‐04 24hrs
Max 1.800 NA 1.41E‐02 0.083 49.200 2.41E‐03 2.400 NA 0.004 5.15E‐02 56.167 6.56E‐04 24hrs
Average 1.110 NA 8.30E‐03 0.023 46.087 8.29E‐04 1.390 NA 0.002 1.60E‐02 53.368 6.06E‐04 month
1 1.00 NE 4.97E‐03 0.010 48.500 4.29E‐04 0.400 ESE 1.93E‐03 1.60E‐02 52.888 6.24E‐04 24hrs
2 0.90 ENE 4.58E‐03 0.022 49.200 4.80E‐04 0.500 ESE 1.80E‐03 1.36E‐02 52.646 5.97E‐04 24hrs
3 1.00 ENE 3.96E‐03 0.030 42.800 4.47E‐04 0.800 ESE 4.95E‐04 1.61E‐02 52.671 5.97E‐04 24hrs
4 1.10 E 4.14E‐03 0.014 41.900 4.49E‐04 0.900 ESE 2.09E‐03 1.04E‐02 52.800 5.74E‐04 24hrs
31 1.600 E 1.39E‐02 0.009 44.600 7.49E‐04 0.800 ESE 1.02E‐03 1.19E‐02 53.300 6.56E‐04 24hrs
D Daytime Target (9am‐6pm) ‐ 75 dB; Morning (5am‐9am) and Evening (6pm‐10pm) Target ‐ 70dB; Nightime Target (10pm‐5am) ‐ 65dBE Daytime and nighttime standards in industrial and commercial areas
BLDL ‐ Below the Lowest Detectable Level; NR ‐ No reading; NA ‐ Not Applicable
Averaging Time
Monthly Ambient Air Quality Monitoring Report (May '14)
Station 2
A Interim Target 1‐0.443ppm; Interim Target 2 ‐ 0.0177 ppm; Guideline Value ‐ 0.0071 ppm (Interim Targets are provided in recognition of the need for a staged approach to achieving the
recommended guidelines) (Averaging Time: 24 hrs)
Date
Station 1
B 1‐hour averaging period os recommended in the WHO Ambient Air Quality Guidelines as well as in the US National Ambient Air Quality Standards (NAAQS)
C Interim Target 1‐0.1500 ppm; Interim Target 2‐0.1000 ppm; Interim Target 3‐0.0750 ppm; Guideline Value‐0.0500 ppm (Averaging Time 24hrs)
5
Table 5. AAQMS Results (June 2014)
Wind Speed
Wind Direction
NO2 PM 10 NOISE SO2Wind Speed
Wind Direction
NO2 PM 10 NOISE SO2
m/s ‐ PPM mg/m3 dB PPM m/s ‐ PPM mg/m3 dB PPM
DENR STD NA NA 0.080 0.150 75.000D 0.070 NA NA 0.080 0.150 75.000
D 0.070 NA
WORLD BANK STD
NA NA 0.0987B
0.150C
70.000E
0.0443A NA NA 0.0987
B0.150
C70.000
E0.0443
A NA
Min 0.900 NA 2.39E‐03 0.006 41.700 5.45E‐04 0.200 NA 0.000 0.005 38.875 5.65E‐04 24hrs
Max 1.800 NA 1.41E‐02 0.091 50.500 3.61E‐03 7.700 NA 0.004 0.055 53.588 7.58E‐04 24hrs
Average 1.393 NA 9.57E‐03 0.028 46.207 8.48E‐04 2.387 NA 0.002 0.017 48.521 6.68E‐04 month
1 1.40 W 1.33E‐02 0.040 43.200 7.21E‐04 2.000 S 0.001 0.009 53.183 6.406E‐04 24hrs
25 1.80 NE 8.77E‐03 0.031 43.900 8.52E‐04 0.200 ESE 0.003 0.020 46.871 7.042E‐04 24hrs
26 1.500 N 4.97E‐03 0.022 42.600 7.81E‐04 0.200 ENE 0.003 0.011 47.242 7.146E‐04 24hrs
27 1.400 NNE 3.27E‐03 0.022 45.300 7.80E‐04 0.200 E 0.003 0.011 47.463 6.521E‐04 24hrs
28 1.700 NNE 3.29E‐03 0.011 47.900 7.54E‐04 0.800 NNE 0.003 0.012 47.796 6.646E‐04 24hrs
29 1.200 NNE 2.44E‐03 0.022 48.900 7.35E‐04 0.900 NNE 0.001 0.011 47.829 6.604E‐04 24hrs
30 1.100 NNE 4.41E‐03 0.018 46.100 7.89E‐04 0.800 E 0.002 0.013 48.058 7.313E‐04 24hrs
D Daytime Target (9am‐6pm) ‐ 75 dB; Morning (5am‐9am) and Evening (6pm‐10pm) Target ‐ 70dB; Nightime Target (10pm‐5am) ‐ 65dBE Daytime and nighttime standards in industrial and commercial areas
BLDL ‐ Below the Lowest Detectable Level; NR ‐ No reading; NA ‐ Not Applicable
Averaging Time
Monthly Ambient Air Quality Monitoring Report (June '14)
Station 2
A Interim Target 1‐0.443ppm; Interim Target 2 ‐ 0.0177 ppm; Guideline Value ‐ 0.0071 ppm (Interim Targets are provided in recognition of the need for a staged approach to achieving the
recommended guidelines) (Averaging Time: 24 hrs)
Station 1
B 1‐hour averaging period os recommended in the WHO Ambient Air Quality Guidelines as well as in the US National Ambient Air Quality Standards (NAAQS)
C Interim Target 1‐0.1500 ppm; Interim Target 2‐0.1000 ppm; Interim Target 3‐0.0750 ppm; Guideline Value‐0.0500 ppm (Averaging Time 24hrs)
FIGURE 1. AAQQMS Station 1 l
Stat
Alig
(Apr
location and W
tion 1ganga’s Residenr‐Jun 2014)
SP
ind Rose
ce
PC POWER PLANCOMPLEX
NT
KSPC CEBU POOWER PLANT
FIGURE 2. AAAQMS Station
SP
2 location and
PC POWER PLANCOMPLEX
Wind Rose
Station 2Berdan’s O(Apr‐Jun 2
NT
7
Open Ground 2014)
KSPC CEEBU POWER PLAANT
FIGURE 3. S
FIGU
SO2 and NO2 V
RE 4. PM‐10 V
8
Values at AA
Values at AA
AQMS 1&2
AQMS 1&2
3.1.2. Manu
Ambient airWorld Bankambient air on the dataadded duriPoblacion) expanded ESampling lothe construc
3.1.3. Air Em
As one of i(CEMS) for ewell. ParamOxide emiss
levels are wcontrol of tboth units w
ual Ambient A
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a, the ambient ng the sampl
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Emergency Ashocation maps action period up
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Air and Noise M
esults at the fol parameters ae the potentialair quality oning period, ony 150m away h Pond B. Taare provided inp to the presen
ntal features, ese CEMS Unitting include thnd the Carbon e national andnt is highly effi to 7 shows th
FIGUR
Monitoring
our stations inare compliant.
l dusts generat dust is acceptne (1) 24‐hr from the coaable 6 summa
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the power plats are subjectehe Total SuspeMonoxide emd World Bank cient. Tables 7e trending gra
RE 5. Noise Va
9
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‐time ContinuATA to confirmes (TSP), Sulfuesults, correctehese favorablearize the daily ults in compari
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exceeded the eter measured
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ous Emissions
m that the analyr Oxide emiss
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reference DENd for dust contd ash particles.3) stations wer’s Residence ions near the the second qurending graph
s Monitoring Syzers are functsions (SOx), Nitndicate that emw that the emApril to June 2ndards.
NR and tent in Based re also (North newly uarter. s from
System tioning trogen mission issions 014 of
10
Table 6. Ambient Air Quality
PM‐10, SO2, NO2, Noise, CO,
µg/Ncm µg/Ncm µg/Ncm dB ppm
Minimum Detection Limit
1 0.01 0.01 ‐‐‐ 0
DENR Standard, 1‐hr 200 340 260 75 30
DENR Standard, 24‐hr 150 180 150 75 30
World Bank Standard (IFC, 1‐hr) ‐‐‐A 212
B200
C 70 35B
Time: (05/23/14)/ 06:04‐07:04PM
Wind Direction: NE to SW
Sampler is inside the basketball court approximately 300m from KSPC; group of men playing basketball and children playing during sampling time.
Time: (05/23/14)/ 11:57AM‐12:57PM
Wind Direction: NE to SW Approximately 150m from KSPC; near National Road (busy street); area is dusty when vehicle passes; Source of noise & dust: no. of vehicles, motorcycles & buses: 53
Time: (05/23/14)/ 10:30‐11:30AM
Wind Direction: NE to SW
Sampling location is near the pier area fence; at close proximity from conveyor and plant boilers. The ambient set‐up is in a grassy area. Source of noise from people chatting & sound from boiler engine.
Time: (05/23/14)/ 07:16‐08:16PM Wind Direction: NE to SW
Sampling area is near residences; open area; the place/spot has many trees and plants. Source of noise’ people chatting and and dogs barking.
Time: (05/22‐26/14)/ 09:30‐10:30AM
Wind Direction: NE to SW
Approximately 40ft away from the main road, about 5ft distance from the sea level and 150m away from the plant. Source of noise; vehicle passing, people chatting and sound of waves.
Time: (05/23/14)/ 02:59‐03:59PM
Wind Direction: NE to SW
Sampling location near Colon Brgy. Hall; approximately 20m away from the main road; near colon health center. Source of noise; children playing, people chatting and horn of vehicle.
Time: (05/23/14)/ 01:43‐02:43PM
Wind Direction: NE to SW
Sampling area; near KEPCO fence and ash pond, residential area. Source of noise; children swimming, sound of chicken and people chatting.
A Internationally‐accepted standards use an averaging time of 24‐hours
B US‐EPA National Ambient Air Quality Standards (NAAQS)
C WHO Ambient Air Quality Guidelines
D Additional sampling station for ash pond operation monitoring.
0
Station/Location
Along National Road cor., Alinganga St., Near Perimeter Fence of SPC Power Corp.
106 <7 5 68
‐
Near Pier Area inside the power plant site
9 <7 3
DColon Barangay Hall 16 ‐ ‐ 62
PARAMETERS
Observations during sampling
Brgy. Tangke, Basketball Court
14 <7 2 63 0
31 <7 1 56 0
AMBIENT AIR QUALITY (Third Party Conducted by OMLI)
DNear Ash Village 9 ‐ ‐ 51 ‐
At the Back of Kading’s Residence (North Poblacion)*
SO2 (DENR‐EMB: 245 ppm, World Bank: 319 ppm)CO (DENR‐EMB: 400 ppm)NOx (DENR‐EMB: 487 ppm, World Bank : 252 ppm)
APRIL MAY JUNE APRIL MAY JUNE
TSP (DENR‐EMB: 150 mg/Nm3, World Bank: 50 mg/Nm
3)
APRIL MAY JUNE APRIL MAY
FIGURE 6.
13
FIGURE 7.
14
15
3.2. RA 9275: WATER ENVIRONMENT
3.2.1. Groundwater
Although, KSPC does not make use of groundwater for industrial and domestic operation, still groundwater quality is monitored in compliance with the EIS and to ensure that groundwater being utilized by the stakeholders are within the standards set according to its use. Table 9 shows the groundwater monitoring results of the coverage period including that of the previous periods (Dec 2013 to May 2014) while Attachment 2 contains the trending graphs (from the start of monitoring up to the present period) of the critical parameters with respective DENR standards. Sampling locations are indicated in Attachment 1. Generally, the monitoring results indicate that groundwater stations tested are still within acceptable levels but are not recommended for drinking. Though some of the results are not within the standards, they are all within the background levels and trend of the baseline data from the EIS, the MMT, and previous monitoring results. It is important to consider however that the power plant does not withdraw groundwater or discharge effluents to inland surface waters. Thus, any adverse impact to the community’s groundwater is most likely due to domestic activity and natural earth movement.
The Total Dissolved Solids (TDS) levels are high compared to the standard which could have an effect on the taste of the ground water but the values are well within the baseline. This is again, as mentioned in the previous reports, attributable to the natural background of the area. For the chloride levels, all stations displayed desirable results. As mentioned in the first paragraph, it is highly recommended that these deep wells be not used for drinking. 3.2.2. Marine Water
It is important to monitor the marine water quality of the sea fronting the power plant since it is where the treated water effluent generated from the plant operation are being discharged. Table 10 shows the marine water monitoring results within the coverage period including that of the previous period (Dec 2013 to May 2014) while Attachment 2 contains the trending graphs of the previous results of critical parameters with respective DENR standards. Sampling locations are indicated in Attachment 1. Generally, the monitoring results indicate that there have been no adverse impacts to the receiving marine environment. Most parameters fall within acceptable standards set by DAO 34 (Water Class SC). Furthermore, most of the current data falls around the same range to those of the previous period’s results including that of the MMT Baseline Monitoring Activity. Imperative to note are the high TSS values of stations 1, 3, 4 and 5 which are either near or exceeding the allowable increase (30 mg/L) to their baseline site while station 2 is the area that directly receives KSPC’s discharges. In addition, KSPC’s discharge is only cooling water, sanitary effluents and storm water while the industrial effluents are all treated and reused. One has to also note that the marine TSS value is a function of many meteorological and oceanographic parameters which means result of multiple discharges in which KSPC is part of.
3.2.3. Water Effluents
Effluents of the power plant are from the sanitary treatment system, which processes all domestic effluents to acceptable levels before it is discharged to the sea, storm water, and cooling seawater (at a higher temperature). There are four (4) sanitary treatment systems in the power plant and 2 storm drains to the sea. Each storm drain discharges effluents from 2 sanitary treatment systems together with the rain/storm water. On the other hand, cooling water is discharged through the submerged discharge tunnel, 154 m off‐shore. All parameters tested are within standard limit. Table 11 summarizes the results of each parameter in comparison to the standards. 3.2.4. Thermal Discharge
According to the standards, the mixing zone border should not experience a temperature increase of more than 3°C. The baseline temperature shall be that of the ambient seawater while the mixing zone has a radius of 100 m from the discharge point. The water temperatures were measured in the morning and afternoon last May 22, 2014 to assess the environmental performance of the power plant. Table 12 presents the results. Figure 8 shows a map of the submerged discharge area and the sampling points. Results show that the thermal effluents are within the national and World Bank standards. 3.25. Pangdan‐Naalad River Monitoring In cooperation of DENR‐EMB’s Adopt‐an‐Estero Program, KSPC has adopted two water bodies, the Pangdan and Naalad River. The program aims to maintain water quality and cleanliness of the adopted water body. Aside from the
16
regularly held coastal clean‐up, part of the program is to monitor the quality of the adopted river. Table 13 shows the second quarter monitoring result of Pangdan and Naalad River. It has been noticed that Total Suspended Solids (TSS) results are quite high; these may be due to the earth moving activities in the area. KSPC has no control over the two areas, since they are privately owned.
GNot more than 30 mg/L increase of the baseline value:
STN 1 baseline ‐ 7 mg/L
STN 2 baseline ‐ 442 mg/L
STN 3 baseline ‐ 13 mg/L
STN 4 baseline ‐ 22 mg/L
STN 5 baseline ‐ 15 mg/L
FStill within the natural background values
Marine Water Monitoring (3rd Party Conducted by OMLI)
STN 2 STN 3 STN 4 STN 5
Station/LocationA
ParametersDENR
StandardB
ASTN 1 ‐ Front of City Hall Plaza, STN 2 ‐ Front of KSPC Site, STN 3 ‐ Front of Barangay North Poblacion, STN 4 ‐ Front of Colon Elementary School (Lower Kayam), STN 5 ‐ Front of Tuyan Elementary School (Barangay Tuyan)
STN 1
BDAO 90‐34 Revised Water Usage and Classification/Water Quality Criteria
CMinimum Standard
DValue in parentheses indicates a maximum standard
EDoes not apply if natural background is higher in concentration
19
Table 11. Water Effluents Monitoring Results
ParametersDENR
StandardB
MONTH Apr May Jun 3rd Party Apr May Jun 3rd Party Apr May Jun 3rd Party (Class SD)
G No in‐house laboratory testing was made due to the inavailability of the instrument to be used for testing.
H No in‐house laboratory testing was made since all oily wastewater is treated in the plant's wastewater treatment facility.
I High TSS may be due to accumulated silt in the discharge tunnel. There are no solid additives added to the cooling water.J No 3rd party analysis done.
Water Effluents Monitoring (2nd Quarter 2014)
Cooling Water Effluent Stormdrain 1A (near LCF) Stormdrain 2A (near WTS) World Bank Standards
(IFC)
A where treated effluent from the sanitary treatment system is discharged together with rain water and backwash seawater; samples are collected from a catch basin.
20
Table 12. Seawater Temperature Data
Tide Direction
FIGURE 8. Sea Water Temperature Testing Points
Current direction is SW. M1 (Ambient Temp.) M2 M3 M4 M5 Discharge Point
100‐m radius
Plant Load
(% Capacity)
11:49 31.60 8.50 Unit 1‐100%,
15:30 31.60 8.90 Unit 2‐100%
11:45 31.30 31.60 ‐0.30 8.00 Unit 1‐100%,
15:31 33.20 31.60 1.60 8.20 Unit 2‐100%
11:46 31.70 31.60 0.10 8.60 Unit 1‐100%,
15:32 33.30 31.60 1.70 8.50 Unit 2‐100%
11:47 33.10 31.60 1.50 8.50 Unit 1‐100%,
15:33 33.30 31.60 1.70 8.50 Unit 2‐100%
11:48 31.60 31.60 0.00 9.00 Unit 1‐100%,
15:34 31.30 31.60 ‐0.30 8.70 Unit 2‐100%
SeaWater Temperature Monitoring (2nd Quarter 2014)
pH
M2 <0.2
M3 <0.2
M1 ‐ ‐ ‐
Points Time
Sampling Location
(Temp. in °C)
Baseline Point (Temp. in °C)
ΔT (°C)Residual
Chlorine, mg/L
M4 <0.2
M5 <0.2
World Bank Standard (IFC) Based on the EIA of the project (DENR Standard)
DENR Standard Temp. Inc. in °C (DAO 90‐35) 3
21
Table 13. River Water Quality
3.3. RA 6969: CONTROLLED CHEMICALS & HAZARDOUS WASTE
3.3.1 CCO Report The plant is using mercury substances in the laboratory for the analysis of water effluents and water to be used in the boiler. Table 14 shows the summary of chemical purchases within the period from April‐June 2014. Table14: Summary of Chemical Purchases and Usage
No. Chemical Name Trade Name CAS No.
Balance from Previous Report
Quantity Purchased Supplier Quantity
Used Remaining Quantity
1 Mercuric Sulfate
Mercuric Sulfate 7439‐97‐6 130.0 g
No purchased within the reporting period
8.0 g 122.0 g
2 Mercuric (II) Thiocyanate
Mercuric (II) Thiocyanate 7439‐97‐6 99.70 g ‐‐ 99.70 g
3.3.2 Hazardous Waste Hazardous waste in the plant site includes waste oils, busted fluorescent lamps, and contaminated containers. Within the coverage period, all wastes generated are stored in the WTS Building for future treatment and disposal by accredited service provider. Generated industrial wastewater is being treated in the centralized wastewater treatment facility. Water produced are being reused for dust suppression and firefighting. Mixed chemical wastes with mercury are placed in a tightly closed bottle which is stored in the laboratory area for future treatment. Table 15 below shows the summary of generated and stored hazardous wastes within the reporting period.
ASTN 1 ‐ Upstream Pangdan A, STN 2 ‐ Downstream Pangdan A, STN 3 ‐ Upstream Pangdan B, STN 4 ‐ Downstream Pangdan BND ‐ No data. River Water Sampling started 1stQuarter of 2014.
River Water Monitoring (3rd Party Conducted by OMLI)
Parameters
Station/LocationA
DAO‐34 Class D
STN 1
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Table 15: Summary of Hazardous Waste Generated/Treated
HW HW Class HW Nature/ Cataloguing
Stored HW On‐site HW Generated
HW Treated
HW Remaining from Previous
Report Quantity Unit
Waste Water Other Alkali Wastes Liquid C399 ‐‐‐ ‐‐‐ 8,435 8,435 ‐‐‐
Used Oil Waste Oil Liquid I101 6,000 L 1,800 ‐‐‐ 4,200
Contaminated Container
Containers previously containing oil
Solid (Plastic)
J201
‐‐‐ kg ‐‐‐ ‐‐‐ ‐‐‐
Containers previously containing toxic
chemicals
10 drum (200L) ‐‐‐ ‐‐‐ 10
3 carboy (20L) 3 ‐‐‐ ‐‐‐
11 Pc
(250mL‐2L) 11 ‐‐‐ ‐‐‐
Solid (Glass) J201
8 Pc
(250mL‐2L) 8 ‐‐‐ ‐‐‐
Busted Lamps Mercury and
Mercury Compounds
Solid
D407 10 kg 10 ‐‐‐ ‐‐‐
Mixed Chemical Wastes with Mercury
Liquid 1,500 mL ‐‐‐ mL 1,500
3.4. RA 9003: SOLID WASTE Solid wastes in the power plant are categorized as domestic/office and industrial. For the coverage period, a total of 12,810.00 kg of domestic/office solid wastes were disposed of or collected by the Naga City LGU. Industrial solid wastes in the power plant are either coal ash or sludge. Stored sludge from the wastewater treatment plant was tested for TCLP and results show that it is not considered hazardous. A total of 14.575 tons of sludge were hauled out last July 7, 2014. The power plant’s coal ash (fly ash; bed ash will be tested in the next quarter) was also tested using TCLP and results also classified it as solid industrial waste (See Attachment 6). All the coal ash generated was recycled by CEMEX (APO Cement) in their cement manufacturing business and GTCI (Geo‐Transport) in ready‐mixed concrete. Ash generation and disposal activities for this period are more stable due to the very low ash quality of the coal fired compared to the previous period. Table 16 summarizes the industrial and solid waste quantities generated and the respective disposal methods.
Table 16. Summary of Industrial and Solid Waste Generation and Disposal
Coal Ash (Fly and Bed) (Tons) Wastewater Treatment Sludge (Tons)
Domestic & Office Solid Waste (kg)
Stored on‐site (Previous)
0.00 10.00 0.00
Generation 12,466.49 4.575 12,810.00
Stored on‐site (Current)
A 0.00 0.00 0.00
Disposal 12,466.49 14.575 12,810.00
TCLP Test Result Passed (Industrial Waste‐See Attachment 6)
Passed (Industrial Wastes See Attachment 6) ‐
Disposal Method RMC & Cement Recycling 3rd party hauler/ Naga MRF Through local LGU garbage
collection
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IV. CONCLUSION Based on the environmental monitoring results for the period of April to June 2014, the 2x100 MW Cebu Power Plant Project has not caused any undesirable effect to the nearby surroundings. This is in line with the company’s goal for sustainable development. The findings in this report will be discussed in KSPC’s Multi‐Partite Monitoring Team (MMT) and due recommendations will be made. Certificates of analyses are in Attachment 3 while Attachment 4 contains the rest of the sampling pictures.