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 4th Quarter 2011
PHI: Visayas Base-load Power Development Project
Prepared by
KEPCO SPC Power Corporation
Cebu City, Philippines
i
2 x 100 MW CEBU POWER PLANT
2012.01.29
KSPC Power Plant Construction Office
Environmental Monitoring Results (Sep.-Dec. 2011)
ii
Table of Contents
Page
I. Introduction and Operation Progress 1
II. Results of Environmental Monitoring 1 2.1 Air Environment 1 Ambient Air 1 Air Emissions 12 2.2 Water Environment 27 Ground Water 27 Marine Water 27 Water Effluents 28 2.3 Pangdan and Naalad 35 2.4 Resettlement Area 41 2.5 Solid and Hazardous Waste 43
III. Conclusion 44
Attachments
Attachment 1 - Monitoring Locations / Sampling Maps Attachment 2 - Environmental Monitoring Trending Graphs Attachment 3 - Residual Chlorine Re-sampling Certificates Attachment 4 - Ash and Sludge TCLP Certificates
Attachment 5 - Certificates of Analyses
Attachment 6 - Environmental Monitoring Pictures
1
I. INTRODUCTION AND PLANT OPERATION STATUS
This report shall cover the period September to December 2011 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 on full load operations within the coverage period. Below is a table showing the summary plant performance. Table 1. Cebu Power Plant Performance Status
Month Unit Net
Generated Power (MWh)
Avg. Heat Rate
(kCal/kWh)
House Load Rate
(%)
Planned Plant Outages (Days)
Forced Plant Outages (Days)
09/2011 Unit 1 35,758.22 2,522.75 10.57 15.00 -
Unit 2 55,475.38 2,509.75 10.09 - -
10/2011 Unit 1 37,514.80 2,502.00 10.76 3.00 -
Unit 2 55,312.02 2,517.90 9.79 - -
11/2011 Unit 1 42,345.69 2,524.00 10.50 - 6.94
Unit 2 45,879.40 2,517.10 9.72 8.00 -
12/2011 Unit 1 67,871.78 2,524.50 10.00 - -
Unit 2 21,999.44 2,517.70 9.17 8.60 -
Plant Average 90,539.18 5,033.92 20.15 28.15 1.74
II. RESULTS OF ENVIRONMENTAL MONITORING
2.1. AIR ENVIRONMENT
2.1.1 Ambient Air
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. Table 2 summarizes the monitoring activities made within the coverage period while Tables 3 to 6 summarize the data gathered and used for analysis and trending.
Ambient Air Quality Monitoring System (AAQMS) Results Results of the ambient air parameters monitored at the two (2) continuous stations defined in table 2, and using an averaging time of 24 hours, generally concludes that the levels are well within the background and standard values. At station 1, a PM-10 exceedance was observed on November 4, 2011 but the source could not be validated as there was no reading of the wind speed and directions. At station 2, exceedances were also observed on October 5 and October 12, 2011 and were validated as coming from the site indicated by the wind speed and direction readings. The source was identified as the dust generated from operating the
2
emergency ash pond. This was remedied by increasing the amount of water sprayed during unloading at the said ash pond. No exceedances were observed for the parameters NO2 and SO2. Based on the meteorological data, the prevailing wind direction for the period is blowing from the SE while a top monthly average wind speed of 3.77 m/s was monitored for both stations. Figures 1 – 2 is a summary of the meteorological conditions gathered within the coverage period while figures 3 – 6 show a summary of PM-10, NO2, and SO2 values monitored during the coverage period.
Table 2. Ambient Air Monitoring Stations and Parameters
Coverage Period Monitoring Stations Parameters Monitored
September – December 2011
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 Perimeter Fence Noise Monitors: STN A – Guard House 1 STN B – Guard House 2
PM-10, SO2, NO2, Noise Total Suspended Particles (TSP), SO2, NO2, Noise Noise
Continuous Noise Monitoring Noise levels were monitored at the two (2) AAQMS stations and also at the perimeter area using the two (2) continuous perimeter noise monitoring instruments installed at the main and secondary guardhouse. Figure 7 shows a graph of the noise levels measured during the coverage period. It can be observed that only two minute exceedances occurred at guardhouse 2 on September 13, 2011 and November 29, 2011. Over-all, the values are well within the background values and the prescribed standards. Exceedances are most probably caused by external factors such as passing vehicles along the highway. Also, the provision of a 5-m buffer zone attenuates this small exceedance should the source be from inside of the power plant.
3
Table 3. AAQMS and Perimeter Noise Results (September 2011)
Date
Station 1 Station 2 Noise (dB) Averaging
Time SO2
(ppm)
NO2
(ppm)
PM-10
(mg/NCM)
Noise
(dB)
Wind Speed
(mps)
Prevailing
Wind Dir.
SO2
(ppm)
NO2
(ppm)
PM-10
(mg/NCM)
Noise
(dB)
Wind Speed
(mps)
Prevailing
Wind Dir.
Guard
house 1
Guard
house 2
9/1/2011 0.0011 0.0158 0.0280 48.30 2.99 SE 0.0020 0.0036 0.0280 48.30 1.15 SE 70.70 59.40 24 hrs
9/2/2011 0.0003 0.0239 0.0270 45.40 4.17 NE 0.0007 0.0004 0.0270 45.40 0.83 NE 70.40 NR 24 hrs
9/3/2011 0.0008 0.0154 0.0330 44.90 3.08 NE 0.0020 0.0012 0.0330 44.90 0.91 SE 69.50 NR 24 hrs
9/4/2011 0.0008 0.0065 0.0250 45.00 3.09 SE 0.0002 0.0000 0.0250 45.00 0.95 SE 69.80 NR 24 hrs
9/5/2011 0.0004 0.0165 0.0240 45.20 3.57 NE 0.0005 0.0000 0.0240 45.20 0.92 SE 71.10 NR 24 hrs
9/6/2011 0.0005 0.0173 0.0270 45.10 3.94 NE 0.0005 0.0022 0.0270 45.10 0.95 E 71.70 NR 24 hrs
9/7/2011 0.0005 0.0167 0.0300 45.10 4.38 NE 0.0002 0.0002 0.0300 45.10 0.99 SE 68.50 NR 24 hrs
9/8/2011 0.0005 0.0324 0.0320 45.10 2.70 NE 0.0005 0.0014 0.0320 45.10 0.54 NE 69.50 NR 24 hrs
9/9/2011 0.0007 0.0081 0.0570 44.70 3.25 E 0.0002 0.0017 0.0570 44.70 1.04 SE 69.80 NR 24 hrs
9/10/2011 0.0006 0.0160 0.0100 44.60 2.96 E 0.0002 0.0017 0.0100 44.60 1.09 SE 68.50 NR 24 hrs
9/11/2011 0.0007 0.0256 0.0120 44.70 3.00 SE 0.0001 0.0054 0.0120 44.70 0.72 SW 67.70 NR 24 hrs
9/12/2011 0.0018 0.0254 0.0240 43.00 2.61 SE 0.0003 0.0050 0.0240 43.00 0.85 SW 70.20 NR 24 hrs
9/13/2011 0.0010 0.0250 0.0630 43.90 4.52 SE 0.0002 0.0026 0.0630 43.90 1.16 SE 71.50 76.20 24 hrs
9/14/2011 0.0006 0.0206 0.0610 43.70 6.78 NE 0.0003 0.0000 0.0610 43.70 1.09 NE 71.80 70.60 24 hrs
9/15/2011 0.0003 0.0235 0.0320 44.00 3.94 NE 0.0004 0.0000 0.0320 44.00 1.19 SE 68.60 69.30 24 hrs
9/16/2011 0.0008 0.0302 0.0200 43.80 3.12 SE 0.0003 0.0037 0.0200 43.80 0.94 SE NR 68.90 24 hrs
9/17/2011 0.0005 0.0305 0.0350 43.00 4.28 NE 0.0004 0.0026 0.0350 43.00 0.84 SE NR 67.00 24 hrs
9/18/2011 0.0003 0.0256 0.0640 44.70 2.86 NE 0.0003 0.0030 0.0640 44.70 0.69 SE NR 66.50 24 hrs
9/19/2011 0.0004 0.0292 0.0280 44.40 3.15 SE 0.0004 0.0013 0.0280 44.40 0.98 SE NR 67.70 24 hrs
9/20/2011 0.0006 0.0349 0.0480 44.30 2.47 SE 0.0002 0.0063 0.0480 44.30 0.81 SW NR NR 24 hrs
9/21/2011 0.0004 0.0252 0.0290 44.70 2.90 SE 0.0003 0.0020 0.0290 44.70 0.78 SE NR NR 24 hrs
9/22/2011 0.0011 0.0311 0.1060 45.20 6.14 NE 0.0005 0.0037 0.0660 45.40 0.94 S NR NR 24 hrs
9/23/2011 0.0006 0.0458 0.0620 46.80 7.95 NE 0.0034 0.0021 0.0620 46.80 0.94 SE NR 59.60 24 hrs
9/24/2011 0.0000 0.0244 0.0300 47.20 3.27 NE 0.0015 0.0051 0.0300 47.20 0.83 SE NR 59.50 24 hrs
9/25/2011 0.0000 0.0222 0.0400 47.50 2.54 NE 0.0013 0.0000 0.0400 47.50 0.43 NE NR NR 24 hrs
9/26/2011 0.0000 0.0281 0.0490 47.80 5.14 NE 0.0039 0.0017 0.0490 47.80 1.14 NE NR 60.60 24 hrs
9/27/2011 0.0000 0.0232 0.0360 48.20 4.69 NE 0.0006 0.0042 0.0360 48.20 1.01 NE NR 59.80 24 hrs
9/28/2011 0.0000 0.0233 0.0460 47.80 3.26 NE 0.0006 0.0008 0.0460 47.80 0.73 E NR 59.50 24 hrs
9/29/2011 0.0000 0.0172 0.0560 47.50 2.51 SE 0.0006 0.0034 0.0560 47.50 0.91 SE NR 59.50 24 hrs
9/30/2011 0.0000 0.0145 0.0450 47.10 4.05 SE 0.0008 0.0013 0.0450 47.10 1.31 SE NR 59.50 24 hrs
Average 0.0005 0.0234 0.0391 45.37 3.77 NE 0.0008 0.0022 0.0380 45.43 0.92 SE 69.95 64.24 month
DENR
Standards 0.0700 0.0800 0.1500 75.00
D NA NA 0.0700 0.0800 0.1500 75.00 NA NA 75.00
D 75.00
D NA
World Bank
Standards 0.0443
A 0.0987
B 0.1500
C 70.00
E NA NA 0.0443
A 0.0987
B 0.1500
C 70.00
E NA NA 70.00
E 70.00
E NA
A Interim Target 1 - 0.0443 ppm; 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 is 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: 24 hrs) D
Daytime Target (9am-6pm) - 75dB; Morning (5am-9am) and Evening (6pm-10pm) Target - 70dB; Nighttime Target (10pm-5am) - 65dB [Standards are from the Rules and Regulations of the National Pollution Control Commission (1978), Section 78, Category D - Heavy Industrial Area]
E Daytime and nighttime standards in industrial and commercial areas
BLDL - Below the Lowest Detectable Level; NR - No Reading; NA - Not Applicable
4
Table 4. AAQMS and Perimeter Noise Results (October 2011)
Date
Station 1 Station 2 Noise (dB) Averaging
Time SO2
(ppm)
NO2
(ppm)
PM-10
(mg/NCM)
Noise
(dB)
Wind Speed
(mps)
Prevailing
Wind Dir.
SO2
(ppm)
NO2
(ppm)
PM-10
(mg/NCM)
Noise
(dB)
Wind Speed
(mps)
Prevailing
Wind Dir.
Guardhouse
1
Guardhouse
2
10/1/2011 0.0000 0.0275 0.0560 46.70 1.02 NE 0.0063 0.0000 0.0560 46.70 1.02 NE 46.70 46.70 24 hrs
10/2/2011 0.0000 0.0039 0.0530 47.20 0.97 NE 0.0012 0.0194 0.0530 47.20 0.97 NE NR NR 24 hrs
10/3/2011 0.0000 0.0012 0.0430 46.90 1.09 SE 0.0003 0.0165 0.0430 46.90 1.09 SE NR NR 24 hrs
10/4/2011 0.0000 0.0065 0.0470 47.10 0.78 SE 0.0007 0.0200 0.0470 47.10 0.78 SE NR NR 24 hrs
10/5/2011 0.0004 0.0037 NR 49.00 0.77 SE 0.0004 0.0191 0.3460 49.00 0.77 SE NR NR 24 hrs
10/6/2011 0.0069 0.0046 NR 52.70 1.21 SE 0.0005 0.0170 NR 52.70 1.21 SE NR NR 24 hrs
10/7/2011 0.0000 0.0033 NR 52.90 0.95 SE 0.0005 0.0187 NR 52.90 0.95 SE NR NR 24 hrs
10/8/2011 0.0000 0.0028 NR 53.40 0.60 SE 0.0002 0.0271 NR 53.40 0.60 SE NR 60.20 24 hrs
10/9/2011 0.0000 0.0017 NR 53.90 0.74 SE 0.0003 0.0186 NR 53.90 0.74 SE NR 59.50 24 hrs
10/10/2011 0.0003 0.0098 NR 53.80 1.07 SE 0.0005 0.0212 NR 53.80 1.07 SE NR 59.60 24 hrs
10/11/2011 0.0000 0.0005 NR 54.30 1.10 SE 0.0003 0.0250 NR 54.30 1.10 SE NR 59.60 24 hrs
10/12/2011 0.0000 0.0000 NR 51.50 1.39 SE 0.0003 0.0092 0.4590 51.50 1.39 SE 59.80 59.60 24 hrs
10/13/2011 0.0000 0.0000 0.0630 45.20 0.96 SE 0.0003 0.0179 0.0630 45.20 0.96 SE 59.50 59.50 24 hrs
10/14/2011 0.0000 0.0000 0.0280 45.10 0.89 SE 0.0003 0.0179 0.0280 45.10 0.89 SE 59.40 59.40 24 hrs
10/15/2011 0.0000 0.0007 0.0900 44.40 1.87 NW 0.0002 0.0181 0.0900 44.40 1.87 NW 59.40 59.40 24 hrs
10/16/2011 0.0000 0.0008 0.0240 43.30 1.50 S 0.0000 0.0158 0.0240 43.30 1.50 SW 59.40 59.40 24 hrs
10/17/2011 0.0000 0.0021 0.0240 43.60 1.72 SW 0.0000 0.0169 0.0240 43.60 1.72 SW 59.40 59.40 24 hrs
10/18/2011 0.0000 0.0040 0.0370 44.00 0.91 SW 0.0000 0.0198 0.0370 44.00 0.91 SW 59.40 59.40 24 hrs
10/19/2011 0.0000 0.0036 0.0760 43.80 1.41 SW 0.0000 0.0228 0.0760 43.80 1.41 SW 59.40 59.40 24 hrs
10/20/2011 0.0016 0.0094 0.0230 43.80 1.57 SW 0.0001 0.0210 0.0230 43.80 1.57 SW 59.40 59.40 24 hrs
10/21/2011 0.0000 0.0009 0.0270 43.60 1.01 SE 0.0001 0.0193 0.0270 43.60 1.17 SW 59.40 59.40 24 hrs
10/22/2011 0.0000 0.0023 0.0730 43.00 NR NR 0.0003 0.0283 0.0730 43.00 0.74 SE 59.40 59.40 24 hrs
10/23/2011 0.0000 0.0010 0.0230 42.70 NR NR 0.0000 0.0172 0.0230 42.70 1.24 S 59.40 59.40 24 hrs
10/24/2011 0.0000 0.0013 0.0220 43.00 NR NR 0.0001 0.0171 0.0220 43.00 0.72 SW 59.40 59.40 24 hrs
10/25/2011 0.0003 0.0044 0.0320 42.70 NR NR 0.0002 0.0251 0.0320 42.70 0.85 SE 59.40 59.40 24 hrs
10/26/2011 0.0000 0.0020 0.0270 42.80 NR NR 0.0004 0.0225 0.0270 42.80 1.99 SE 59.30 59.30 24 hrs
10/27/2011 0.0000 0.0011 0.0280 43.20 NR NR 0.0002 0.0200 0.0280 43.20 0.96 SE 60.90 60.80 24 hrs
10/28/2011 0.0025 0.0039 0.0280 43.70 NR NR 0.0002 0.0186 0.0280 43.70 0.84 SE 67.70 67.70 24 hrs
10/29/2011 0.0000 0.0111 0.0300 46.40 NR NR 0.0003 0.0189 0.0300 46.40 1.50 SW 67.40 67.40 24 hrs
10/30/2011 0.0000 0.0026 0.0320 46.40 NR NR 0.0005 0.0173 0.0290 51.50 0.70 S 67.30 67.30 24 hrs
10/31/2011 0.0000 0.0060 0.0280 46.60 NR NR 0.0004 0.0160 0.0690 51.60 1.50 SE 66.90 67.30 24 hrs
Average 0.0004 0.0040 0.0397 46.67 1.12 SE 0.0005 0.0188 0.0703 46.99 1.12 SE 60.40 60.29 month
DENR
Standards 0.0700 0.0800 0.1500 75.00
D NA NA 0.0700 0.0800 0.1500 75.00
D NA NA 75.00 75.00 NA
World Bank
Standards 0.0443
A 0.0987
B 0.1500
C 70.00
E NA NA 0.0443
A 0.0987
B 0.1500
C 70.00
E NA NA 70.00 70.00 NA
A Interim Target 1 - 0.0443 ppm; 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 is 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: 24 hrs) D
Daytime Target (9am-6pm) - 75dB; Morning (5am-9am) and Evening (6pm-10pm) Target - 70dB; Nighttime Target (10pm-5am) - 65dB [Standards are from the Rules and Regulations of the National Pollution Control Commission (1978), Section 78, Category D - Heavy Industrial Area]
E Daytime and nighttime standards in industrial and commercial areas
BLDL - Below the Lowest Detectable Level; NR - No Reading; NA - Not Applicable
5
Table 5. AAQMS and Perimeter Noise Results (November 2011)
Date
Station 1 Station 2 Noise (dB) Averaging
Time SO2
(ppm)
NO2
(ppm)
PM-10
(mg/NCM)
Noise
(dB)
Wind Speed
(mps)
Prevailing
Wind Dir.
SO2
(ppm)
NO2
(ppm)
PM-10
(mg/NCM)
Noise
(dB)
Wind Speed
(mps)
Prevailing
Wind Dir.
Guard house
1
Guard house
2
11/3/2011 0.0000 0.0033 0.0340 48.10 NR NR 0.0002 0.0161 0.0380 52.10 0.58 SW 67.70 67.70 24 hrs
11/4/2011 0.0020 0.0281 0.1880 45.50 NR NR 0.0002 0.0115 0.0440 51.80 0.90 SW 66.20 67.60 24 hrs
11/5/2011 0.0010 0.0098 0.1040 42.10 1.10 NE 0.0002 0.0175 0.0480 51.80 0.80 SE 67.10 65.80 24 hrs
11/6/2011 0.0005 0.0111 0.0270 41.80 1.10 NE 0.0001 0.0153 0.0350 51.50 0.90 SW 70.90 66.70 24 hrs
11/7/2011 0.0010 0.0076 0.0230 42.40 0.90 SE 0.0002 0.0142 0.0340 51.80 0.80 SE 66.30 65.70 24 hrs
11/8/2011 0.0004 0.0057 0.0250 42.50 1.10 SE 0.0005 0.0134 0.0360 51.80 0.70 SE 67.60 66.50 24 hrs
11/9/2011 0.0002 0.0053 0.0300 42.30 0.90 E 0.0002 0.0152 0.0410 51.80 0.80 SW 66.70 66.00 24 hrs
11/10/2011 0.0003 0.0044 0.0740 42.30 0.80 NE 0.0002 0.0140 0.0900 51.50 0.70 SW 66.20 65.70 24 hrs
11/11/2011 0.0004 0.0061 0.0420 42.60 0.70 NE 0.0004 0.0228 0.0590 51.30 0.60 SW 67.30 68.70 24 hrs
11/12/2011 0.0000 0.0029 0.0240 42.40 1.30 SE 0.0006 0.0141 0.0360 50.80 1.70 SW 67.20 69.10 24 hrs
11/13/2011 0.0000 0.0011 0.0250 42.30 1.10 SE 0.0005 0.0125 0.0300 51.00 1.40 SE 67.70 67.40 24 hrs
11/14/2011 0.0001 0.0012 0.0160 42.50 0.90 SE 0.0003 0.0173 0.0390 52.10 0.80 SE 67.40 67.40 24 hrs
11/15/2011 0.0000 0.0034 0.0140 42.50 1.00 SE 0.0004 0.0156 0.0330 52.40 0.60 SE 67.70 68.40 24 hrs
11/16/2011 0.0004 0.0083 0.0220 42.30 1.00 SE 0.0007 0.0179 0.0470 51.50 1.30 SW 67.40 68.90 24 hrs
11/17/2011 0.0000 0.0031 0.0320 42.40 1.00 SE 0.0006 0.0177 0.0430 51.00 1.20 SW 67.20 68.90 24 hrs
11/18/2011 0.0001 0.0036 0.0280 42.00 1.10 SE 0.0008 0.0211 0.0620 51.10 1.60 S 67.70 69.40 24 hrs
11/19/2011 0.0000 0.0033 0.0250 41.90 1.20 SE 0.0007 0.0162 0.0410 50.90 1.80 SW 67.90 68.40 24 hrs
11/20/2011 0.0000 0.0017 0.0280 42.20 1.20 SE 0.0007 0.0112 0.0450 50.80 1.90 SW 67.50 68.60 24 hrs
11/21/2011 0.0000 0.0022 0.0230 41.70 1.50 NE 0.0005 0.0090 0.0380 50.50 2.40 SW 66.70 69.80 24 hrs
11/22/2011 0.0000 0.0024 0.0180 42.70 1.50 SE 0.0005 0.0076 0.0290 50.60 2.10 SW 67.20 68.50 24 hrs
11/23/2011 0.0000 0.0043 0.0250 42.30 1.30 SE 0.0006 0.0170 0.0460 50.70 2.00 SW 66.20 67.80 24 hrs
11/24/2011 0.0000 0.0060 0.0360 42.40 1.10 SE 0.0005 0.0155 0.0550 50.80 1.30 SW 67.40 68.70 24 hrs
11/25/2011 0.0000 0.0057 0.0190 44.10 1.50 SE 0.0005 0.0111 0.0400 50.80 2.70 SW 67.10 68.70 24 hrs
11/26/2011 0.0000 0.0059 NR 49.60 5.20 NE 0.0006 0.0172 0.0490 50.80 2.00 SW 65.90 67.40 24 hrs
11/27/2011 0.0000 0.0043 0.0200 44.90 4.00 SE 0.0005 0.0100 0.0320 50.60 1.20 SW 65.80 67.60 24 hrs
11/28/2011 0.0000 0.0084 0.0330 46.50 1.40 NE 0.0008 0.0225 0.0870 49.90 NR SW 66.20 67.80 24 hrs
11/29/2011 0.0009 0.0075 0.0430 42.10 1.50 NE 0.0006 0.0179 0.1280 50.00 1.30 SW 69.40 75.50 24 hrs
11/30/2011 0.0008 0.0073 0.0230 41.90 1.60 E 0.0005 0.0102 0.0450 50.00 2.00 SW NR NR 24 hrs
Average 0.0003 0.0059 0.0371 43.15 1.42 SE 0.0020 0.0179 0.0517 51.78 1.34 SW 67.34 68.17 month
DENR
Standards 0.0700 0.0800 0.1500 75.00
D NA NA 0.0700 0.0800 0.1500 75.00
D NA NA 75.00
D 75.00
D NA
World Bank
Standards 0.0443
A 0.0987
B 0.1500
C 70.00
E NA NA 0.0443
A 0.0987
B 0.1500
C 70.00
E NA NA 70.00
E 70.00
E NA
A Interim Target 1 - 0.0443 ppm; 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 is 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: 24 hrs) D
Daytime Target (9am-6pm) - 75dB; Morning (5am-9am) and Evening (6pm-10pm) Target - 70dB; Nighttime Target (10pm-5am) - 65dB
[Standards are from the Rules and Regulations of the National Pollution Control Commission (1978), Section 78, Category D - Heavy Industrial Area] E Daytime and nighttime standards in industrial and commercial areas
BLDL - Below the Lowest Detectable Level; NR - No Reading; NA - Not Applicable
6
Table 6. AAQMS and Perimeter Noise Results (December 2011)
Date
Station 1 Station 2 Noise (dB) Averaging
Time SO2
(ppm)
NO2
(ppm)
PM-10
(mg/NCM)
Noise
(dB)
Wind Speed
(mps)
Prevailing
Wind Dir.
SO2
(ppm)
NO2
(ppm)
PM-10
(mg/NCM)
Noise
(dB)
Wind Speed
(mps)
Prevailing
Wind Dir.
Guardhouse
1
Guardhouse
2
12/2/2011 0.0019 0.0057 0.0764 45.56 NR NR 0.0005 0.0068 0.0551 49.14 0.63 SW NR NR 24 hrs
12/3/2011 0.0025 0.0057 0.0764 45.56 NR NR 0.0005 0.0048 NR 50.44 0.81 SW NR NR 24 hrs
12/4/2011 0.0036 0.0037 0.0764 45.56 NR NR 0.0004 0.0036 NR 56.77 0.44 SE NR NR 24 hrs
12/5/2011 0.0016 0.0067 0.1117 45.78 NR NR 0.0025 0.0062 NR 57.43 0.24 SE NR NR 24 hrs
12/6/2011 0.0034 0.0041 0.0455 45.22 NR NR 0.0006 0.0067 0.0666 53.88 0.62 SE NR NR 24 hrs
12/7/2011 0.0025 0.0052 0.0436 47.19 NR NR 0.0006 0.0059 0.0607 53.35 1.43 SE NR NR 24 hrs
12/8/2011 0.0002 0.0057 0.0332 45.61 NR NR 0.0079 0.0067 0.0592 53.20 0.52 SE NR 64.94 24 hrs
12/9/2011 0.0017 0.0055 0.0393 45.94 NR NR 0.0000 0.0066 0.0490 54.24 0.46 SE 68.97 57.27 24 hrs
12/10/2011 0.0014 0.0051 0.0410 46.14 NR NR 0.0000 0.0045 0.0501 54.09 0.61 SE 72.43 59.77 24 hrs
12/11/2011 0.0016 0.0054 0.0468 45.94 NR NR 0.0000 0.0048 0.0611 53.30 0.67 SW 58.31 58.97 24 hrs
12/12/2011 0.0015 0.0051 0.0457 45.73 NR NR 0.0001 0.0045 0.0520 52.82 1.28 SW 57.64 60.36 24 hrs
12/13/2011 0.0014 0.0037 0.0498 45.66 NR NR 0.0001 0.0028 0.0554 52.60 1.23 SW 58.45 62.27 24 hrs
12/14/2011 0.0016 0.0038 0.0486 45.26 NR NR 0.0000 0.0011 0.0898 51.85 0.56 SW 57.54 62.00 24 hrs
12/15/2011 0.0000 0.0000 0.0495 45.16 NR NR 0.0001 0.0068 0.0499 51.45 0.76 NW 58.65 64.12 24 hrs
12/16/2011 0.0000 0.0000 0.0400 45.41 NR NR 0.0002 0.0055 0.0660 52.65 0.76 NW 56.84 60.76 24 hrs
12/17/2011 0.0000 0.0000 0.0277 45.31 NR NR 0.0001 0.0005 0.0293 52.63 0.76 NW 61.43 70.00 24 hrs
12/18/2011 0.0000 0.0000 0.0319 45.36 NR NR 0.0002 0.0047 0.0392 52.23 0.76 NW 58.60 62.69 24 hrs
12/19/2011 0.0004 0.0000 0.0368 45.77 NR NR 0.0002 0.0061 0.0570 51.73 0.71 SE 59.56 65.05 24 hrs
12/20/2011 0.0001 0.0008 0.0467 45.33 NR NR 0.0003 0.0062 0.0986 50.46 1.86 SE 58.16 61.08 24 hrs
12/21/2011 0.0000 0.0000 0.0422 48.54 NR NR 0.0004 0.0073 0.0608 50.67 1.76 SE 57.14 60.56 24 hrs
12/22/2011 0.0000 0.0000 0.0469 48.27 NR NR 0.0007 0.0063 0.0613 49.92 1.51 SE 57.30 61.14 24 hrs
12/23/2011 0.0000 0.0000 0.0433 48.48 NR NR 0.0005 0.0030 0.0570 50.20 1.88 S 58.70 61.77 24 hrs
12/24/2011 0.0000 0.0000 NR 50.17 NR NR 0.0007 0.0053 0.0661 49.91 1.52 SW 58.67 61.54 24 hrs
12/25/2011 0.0000 0.0000 NR 54.27 NR NR 0.0007 0.0041 0.0490 50.54 1.77 SE 56.07 58.87 24 hrs
12/26/2011 0.0000 0.0000 NR 54.78 NR NR 0.0010 0.0074 0.0499 51.34 1.49 SE 55.09 58.62 24 hrs
12/27/2011 0.0000 0.0000 NR 55.21 NR NR 0.0012 0.0057 0.0508 51.28 1.36 SE 72.02 61.46 24 hrs
12/28/2011 0.0000 0.0000 NR 50.86 NR NR 0.0014 0.0051 0.0648 50.71 1.29 SE 71.71 61.16 24 hrs
12/29/2011 0.0000 0.0000 0.0374 48.70 NR NR 0.0016 0.0052 0.0588 49.62 1.94 SW 58.99 64.95 24 hrs
12/30/2011 0.0000 0.0000 0.0344 48.67 NR NR 0.0010 0.0081 0.0518 50.13 1.63 SE 60.84 63.32 24 hrs
12/31/2011 0.0000 0.0000 0.0475 48.67 NR NR 0.0011 0.0043 0.0597 50.41 1.54 SE 57.37 61.80 24 hrs
Average 0.0008 0.0022 0.0487 47.47 NR NR 0.0008 0.0052 0.0581 51.97 1.09 SE 60.46 61.85 month
DENR
Standards 0.0700 0.0800 0.1500 75.00
D NA NA 0.0700 0.0800 0.1500 75.00
D NA NA 75.00
D 75.00
D NA
World Bank
Standards 0.0443
A 0.0987
B 0.1500
C 70.00
E NA NA 0.0443
A 0.0987
B 0.1500
C 70.00
E NA NA 70.00
E 70.00
E NA
A Interim Target 1 - 0.0443 ppm; 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 is 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: 24 hrs) D
Daytime Target (9am-6pm) - 75dB; Morning (5am-9am) and Evening (6pm-10pm) Target - 70dB; Nighttime Target (10pm-5am) - 65dB
[Standards are from the Rules and Regulations of the National Pollution Control Commission (1978), Section 78, Category D - Heavy Industrial Area] E Daytime and nighttime standards in industrial and commercial areas
BLDL - Below the Lowest Detectable Level; NR - No Reading; NA - Not Applicable
7
Station 1
Aliganga’s Residence
(Sept. – Dec. 2011)
SPC POWER
PLANT COMPLEX
KSPC CEBU
POWER PLANT
S
W E
N
Frequency: 1.39%
Avg. Wind Speed: 1.87 m/s
Frequency: 37.50%
Avg. Wind Speed: 3.40 m/s
Frequency: 55.55%
Avg. Wind Speed: 1.77 m/s
Frequency: 5.56%
Avg. Wind Speed: 1.40 m/s
FIGURE 1. AAQMS Station 1 location and 4-Direction Wind Rose
8
Station 2
Berdan’s Open Ground
(Sept. – Dec. 2011)
KSPC CEBU
POWER PLANT
SPC POWER
PLANT COMPLEX S
W E
N
Frequency: 4.35%
Avg. Wind Speed: 0.98 m/s
Frequency: 6.96%
Avg. Wind Speed: 0.89 m/s
Frequency: 36.52%
Avg. Wind Speed: 1.21 m/s
Frequency: 52.17%
Avg. Wind Speed: 1.06 m/s
FIGURE 2. AAQMS Station 2 location and 4-Direction Wind Rose
9
FIGURE 3. SO2 and NO2 Values at AAQMS 1
FIGURE 4. SO2 and NO2 Values at AAQMS 2
10
FIGURE 5. PM-10 Values at AAQMS 1
FIGURE 6. PM-10 Values at AAQMS 2
11
FIGURE 7. Noise Values from Continuous Monitoring Equipment
12
Manual Ambient Air and Noise Monitoring Ambient air monitoring results at the four stations indicated in Table 2 have not exceeded the reference DENR standards. On the other hand, in comparison to World Bank standards, all parameters except for noise monitored inside the plant site on December 2011 are compliant. This slight deviation from the international standard is however within the background values and is still the same from the previous monitoring period at normal operation, thus it is deemed to be within the plant noise tolerable levels. For this period, the parameter measured for dust content in ambient air is PM-10 since the potential dusts generated from the power plant are coal dust and ash particles. Based on the data, the ambient air quality on dust is acceptable compared to the standards. The high dust level observed during the sampling on December 2011 near Aliganga street is not entirely due to coal dust from the nearby coal yard since the sampling area is much nearer to the national road which is passed by numerous vehicles during daytime. Tables 7 and 8 summarize the data for the 1-hour sampling in both sampling months. Sampling location maps are provided in Attachment 1 while the manual ambient air quality trending graphs from the construction period up to the present are provided in Attachment 2.
2.1.2. Air Emissions As one of its environmental features, the power plant has a real-time Continuous Emissions Monitoring System (CEMS). Parameters for testing include the Total Suspended Particles (TSP), Sulfur Oxide emissions (SOx), Nitrogen Oxide emissions (NOx), and the Carbon Monoxide emission (CO). Results, corrected at 6% O2, indicate that emission levels are well within the national and World Bank standards. These favorable results show that the emissions control of the power plant is highly efficient. Tables 9 and 10 summarizes the daily results from Septemeber to December 2011 of both units while Figures 8 to 15 shows the trending graphs of the results in comparison to the standards.
13
Table 7. AMBIENT AIR QUALITY (1-Hour Grab-Testing, 2011 September)
Station/Location
PARAMETERS
Observations during sampling PM-10,
µg/Ncm
SO2,
µg/Ncm
NO2,
µg/Ncm
Noise,
dB
CO,
ppm
Station 3 Brgy. Tangke, Basketball
Court 47 <0.01 2.4 61.2 0
� Time: 11:05-12:05 PM (09/29/11)
� Wind Direction: NE to SW
� Sampler is inside the basketball court
approximately 300m from KSPC
Station 4 Along National Road
cor., Alinganga St., Near
Perimeter Fence of SPC Power
Corp.
72 <0.01 <0.01 67 0
� Time: 01:10-02:10 PM (09/29/11)
� Wind Direction: NE to SW
� Approx. 150 m from KSPC with passing
vehicles from the nearby national road
Station 5 Near Pier Area inside
the power plant site 39 <0.01 <0.01 65.2 0
� Time: 03:51-04:51 PM (09/29/11)
� Wind Direction: NE to SW
� Sampler is near the water facilities and
coal area
Station 6 In front of Mangkikis
Chapel, Sitio Mangkikis 22 <0.01 <0.01 54.4 0
� Time: 02:19-03:19 PM (09/29/11)
� Wind Direction: NE to SW
� Sampler is in a residential area
approximately 300m from KSPC
Minimum Detection Limit 1 0.01 0.01 --- 0
DENR Standard (DAO 14, 1-hr) 200 340 260 75
(NPCC - D) 30
World Bank Standard (IFC, 1-hr) ---A 212
B 200
C 70 35
B
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
14
Table 8. AMBIENT AIR QUALITY (1-Hour Grab-Testing, 2011 December)
Station/Location
PARAMETERS
Observations during sampling PM-10,
µg/Ncm
SO2,
µg/Ncm
NO2,
µg/Ncm
Noise,
dB
CO,
ppm
Station 3 Brgy. Tangke, Basketball
Court 10 1 4 54 0
� Time: 10:30-11:30 AM (12/21/11)
� Wind Direction: E to W
� Sampler is inside the basketball court
approximately 300m from KSPC
Station 4 Along National Road
cor., Alinganga St., Near
Perimeter Fence of SPC Power
Corp.
119 <0.01 1 61 0
� Time: 02:35-03:35 PM (12/21/11)
� Wind Direction: E to W
� A number of vehicles passed
contributing to noise and dust
Station 5 Near Pier Area inside
the power plant site 5 <0.01 5 75 0
� Time: 01:30-02:30 PM (12/21/11)
� Wind Direction: E to W
� Sampler is near the pier area
Station 6 In front of Mangkikis
Chapel, Sitio Mangkikis 9 <0.01 <0.01 57 0
� Time: 11:45-12:45 PM (12/21/11)
� Wind Direction: E to W
� Sampler is in a residential area
approximately 400m from SPC
Minimum Detection Limit 1 0.01 0.01 --- 0
DENR Standard (DAO 14, 1-hr) 200 340 260 75
(NPCC - D) 30
World Bank Standard (IFC, 1-hr) ---A 212
B 200
C 70 35
B
A Internationally-accepted standards use PM-10 and an averaging time of 24-hours B US-EPA National Ambient Air Quality Standards (NAAQS) C WHO Ambient Air Quality Guidelines
15
Table 9. Unit 1 CEMS Results (September to December 2011)
UNIT 1
TSP
NOx
Date DENR-
Limit September October November December
Date
DENR-
Limit September October November December
1 150 4.90 3.70 3.05 9.35
1 487 100.21 120.55 166.55 141.82
2 150 6.63 2.93 6.27 12.80
2 487 99.47 114.18 156.86 138.85
3 150 5.30 1.80 7.71 13.70
3 487 95.12 91.78 147.89 135.54
4 150 3.82 3.87 15.27 11.47
4 487 102.33 135.57 99.30 132.30
5 150 5.49 4.37 5.22 14.56
5 487 107.13 137.38 1.73 133.74
6 150 6.30 5.20 1.20 20.72
6 487 109.60 136.15 56.06 136.03
7 150 5.77 5.88 2.70 18.62
7 487 102.95 135.69 128.81 135.20
8 150 6.66 2.28 3.43 21.10
8 487 114.28 131.07 124.76 134.31
9 150 5.95 1.79 7.71 17.03
9 487 111.54 141.72 129.35 132.32
10 150 4.91 3.29 4.09 8.23
10 487 104.91 137.60 129.27 118.66
11 150 3.89 2.13 3.76 7.14
11 487 115.32 147.05 106.86 134.63
12 150 6.58 3.20 12.62 15.36
12 487 119.77 130.21 155.06 137.10
13 150 6.35 4.49 8.19 11.68
13 487 98.82 133.39 153.75 128.72
14 150 4.93 3.31 9.96 11.05
14 487 112.48 137.29 152.99 127.33
15 150 5.49 3.25 4.42 10.84
15 487 122.70 154.51 141.80 124.75
16 150 3.39 3.77 10.92 13.10
16 487 13.15 143.69 151.83 124.83
17 150 0.96 6.60 10.35 10.62
17 487 11.64 142.58 147.26 126.32
18 150 1.08 8.00 13.74 9.27
18 487 23.27 129.29 144.97 122.70
19 150 2.78 7.48 8.47 12.01
19 487 54.93 139.43 143.14 125.23
20 150 3.77 12.61 6.51 10.94
20 487 114.81 134.40 148.46 125.06
21 150 3.84 6.17 10.09 15.15
21 487 99.20 128.02 148.25 130.62
22 150 3.60 9.19 6.94 10.30
22 487 85.43 133.71 135.88 126.44
23 150 3.13 10.59 10.44 9.43
23 487 73.11 125.45 128.84 127.01
24 150 4.72 11.09 11.93 5.07
24 487 125.35 131.42 136.56 111.94
25 150 4.38 7.28 9.81 4.22
25 487 115.41 136.10 134.37 122.00
26 150 4.51 8.27 10.46 3.69
26 487 113.83 129.27 136.77 119.85
27 150 4.39 7.08 12.75 6.54
27 487 114.21 135.06 136.07 116.65
28 150 4.42 10.83 13.63 8.73
28 487 118.57 136.93 137.86 134.40
29 150 4.90 6.29 13.10 7.78
29 487 103.64 132.01 137.04 129.05
30 150 2.70 4.21 11.69 7.65
30 487 84.84 138.83 135.24 117.78
31 150 4.89 6.66
31 487 145.63 114.01
16
Table 9 Continuation….
CO
SO2
Date DENR-
Limit September October November December
Date
DENR-
Limit September October November December
1 400 14.45 7.64 10.02 11.94
1 245 136.69 160.01 31.54 52.61
2 400 12.41 9.33 9.80 22.59
2 245 136.96 133.10 41.17 57.59
3 400 10.51 101.47 9.82 8.89
3 245 158.62 96.09 47.41 59.63
4 400 10.23 8.53 57.85 8.62
4 245 149.13 138.64 38.76 67.99
5 400 9.92 7.55 93.68 8.73
5 245 151.07 138.17 27.71 39.84
6 400 9.43 7.47 50.61 8.93
6 245 153.75 140.23 33.87 28.93
7 400 9.81 8.02 8.82 8.85
7 245 152.47 92.23 67.58 31.79
8 400 9.47 8.77 8.71 9.25
8 245 145.84 90.72 50.69 25.95
9 400 9.08 8.58 8.93 9.09
9 245 158.87 97.68 14.28 36.95
10 400 9.46 7.94 8.15 10.08
10 245 159.24 121.38 41.52 46.31
11 400 9.88 9.53 77.64 27.33
11 245 151.08 63.94 35.60 98.40
12 400 9.19 8.94 9.60 10.16
12 245 158.49 138.64 32.22 31.93
13 400 8.78 8.71 8.93 9.02
13 245 164.62 87.74 46.23 53.03
14 400 8.60 10.39 8.92 8.94
14 245 163.21 77.28 63.04 60.28
15 400 42.37 11.20 9.43 8.65
15 245 139.08 62.06 61.61 62.60
16 400 58.75 10.50 9.53 8.60
16 245 30.43 61.96 46.02 54.28
17 400 10.54 10.86 9.40 8.28
17 245 28.15 69.07 41.23 70.21
18 400 16.09 10.23 9.57 8.49
18 245 39.68 70.50 43.80 70.97
19 400 110.39 10.65 9.68 8.81
19 245 76.51 54.28 68.50 62.25
20 400 27.69 9.62 9.90 22.48
20 245 112.96 76.10 47.53 66.00
21 400 113.68 9.16 9.77 8.95
21 245 133.32 92.90 73.22 80.84
22 400 150.62 9.69 9.58 10.09
22 245 121.21 89.24 76.86 86.69
23 400 84.64 9.68 9.22 8.44
23 245 104.02 97.49 84.70 83.52
24 400 8.48 10.01 11.06 8.31
24 245 144.47 81.26 57.74 96.63
25 400 24.94 9.57 17.48 8.13
25 245 146.13 86.98 61.36 90.09
26 400 7.60 9.77 9.25 8.17
26 245 144.19 77.27 55.83 84.30
27 400 9.35 9.88 9.37 9.46
27 245 138.43 58.94 59.84 85.44
28 400 15.62 10.05 9.73 11.29
28 245 147.53 55.27 58.94 84.19
29 400 7.26 9.04 9.41 17.22
29 245 132.81 72.66 56.73 132.37
30 400 7.89 21.43 9.38 13.50
30 245 114.32 49.79 54.95 157.60
31 400 14.34 13.38
31 245 47.68 171.24
17
Table 10. Unit 2 CEMS Results (September to December 2011)
UNIT 2
TSP
NOx
Date DENR-
Limit September October November December
Date
DENR-
Limit September October November December
1 150 0.97 0.85 3.05 3.33
1 487 106.46 106.54 106.27 106.28
2 150 1.06 0.78 6.27 3.32
2 487 106.42 106.50 106.28 106.30
3 150 0.78 0.76 7.71 3.07
3 487 106.44 106.53 106.29 106.29
4 150 0.73 0.79 15.27 2.90
4 487 106.44 106.57 106.30 106.28
5 150 5.41 0.74 5.22 3.21
5 487 106.49 106.51 106.33 106.28
6 150 2.02 1.20 1.20 7.24
6 487 106.44 106.46 106.35 106.31
7 150 0.78 1.56 2.70 10.69
7 487 106.48 106.45 106.35 106.33
8 150 0.78 1.45 3.43 17.89
8 487 105.28 106.44 106.35 106.31
9 150 1.13 0.68 7.71 7.87
9 487 106.47 106.45 106.31 106.31
10 150 0.78 1.02 4.09 8.46
10 487 106.46 106.34 106.28 106.26
11 150 1.26 7.17 3.76 8.37
11 487 106.46 106.24 106.28 106.28
12 150 0.79 1.09 12.62 10.32
12 487 106.48 106.26 106.31 106.28
13 150 1.44 1.08 8.19 8.80
13 487 106.52 106.26 106.30 106.29
14 150 1.02 1.66 9.96 10.01
14 487 106.54 106.26 106.30 106.33
15 150 0.69 0.90 4.42 10.83
15 487 106.51 106.34 106.33 106.40
16 150 0.78 0.78 10.92 9.88
16 487 106.54 106.35 106.31 106.36
17 150 0.96 1.54 10.35 10.36
17 487 106.56 106.34 106.27 106.40
18 150 0.11 1.62 13.74 10.14
18 487 106.56 106.31 106.28 106.40
19 150 2.25 3.85 8.47 11.08
19 487 106.49 106.27 106.30 106.39
20 150 0.89 16.17 6.51 12.70
20 487 106.47 106.25 106.28 106.38
21 150 0.69 7.21 10.09 16.84
21 487 106.47 106.26 106.29 106.39
22 150 0.80 8.15 6.94 9.60
22 487 106.48 106.27 106.31 106.36
23 150 0.69 7.17 10.44 9.17
23 487 106.51 106.28 106.35 106.35
24 150 0.81 5.80 11.93 8.22
24 487 106.56 106.23 106.32 106.40
25 150 1.04 6.45 9.81 8.62
25 487 106.52 106.29 106.29 106.39
26 150 1.27 5.94 10.46 9.45
26 487 106.47 106.32 106.33 106.39
27 150 0.82 6.93 12.75 10.05
27 487 106.50 106.26 106.35 106.39
28 150 1.19 6.43 13.63 8.97
28 487 106.51 106.29 106.34 106.38
29 150 1.54 6.23 13.10 8.05
29 487 106.53 106.30 106.31 106.37
30 150 1.02 6.14 11.69 8.46
30 487 106.53 106.29 106.29 106.36
31 150 6.38 7.57
31 487 106.29 106.36
18
Table 10 Continuation…. CO
SO2
Date DENR-
Limit September October November December
Date
DENR-
Limit September October November December
1 400 10.21 10.25 10.07 10.06
1 245 101.57 101.65 101.39 101.39
2 400 10.18 10.23 10.07 10.07
2 245 101.53 101.61 101.39 101.41
3 400 10.19 10.25 10.07 10.07
3 245 101.55 101.64 101.40 101.40
4 400 10.19 10.27 10.07 10.07
4 245 102 101.68 101.40 101.39
5 400 10.22 10.24 10.10 10.07
5 245 101.59 101.62 101.43 101.39
6 400 10.19 10.20 10.11 10.09
6 245 101.55 101.57 101.46 101.42
7 400 10.22 10.19 10.11 10.09
7 245 101.59 101.56 101.46 101.44
8 400 10.07 10.18 10.11 10.08
8 245 100.44 101.55 101.46 101.43
9 400 10.20 10.19 10.09 10.08
9 245 101.57 101.55 101.42 101.42
10 400 10.20 10.12 10.07 10.05
10 245 101.57 101.45 101.39 101.38
11 400 10.20 10.06 10.07 10.06
11 245 101.56 101.36 101.39 101.39
12 400 10.22 10.07 10.08 10.07
12 245 101.59 101.37 101.42 101.40
13 400 10.24 10.07 10.07 10.07
13 245 101.63 101.38 101.41 101.41
14 400 10.26 10.06 10.08 10.09
14 245 101.65 101.38 101.41 101.43
15 400 10.24 10.11 10.10 10.14
15 245 101.63 101.44 101.43 101.50
16 400 10 10.12 10.09 10.12
16 245 101.65 101.46 101.42 101.47
17 400 10.27 10.11 10.07 10.14
17 245 101.67 101.45 101.38 101.50
18 400 10.27 10.10 10.07 10.14
18 245 101.67 101.43 101.39 101.50
19 400 10.22 10.07 10.07 10.13
19 245 101.60 101.38 101.41 101.49
20 400 10.21 10.06 10.07 10.13
20 245 101.58 101.36 101.40 101.48
21 400 10.21 10.06 10.07 10.14
21 245 101.58 101.37 101.40 101.49
22 400 10.21 10.07 10.09 10.11
22 245 101.59 101.39 101.42 101.46
23 400 10.24 10.07 10.11 10.11
23 245 101.62 101.40 101.46 101.46
24 400 10.26 10.08 10.09 10.15
24 245 101.67 101.39 101.43 101.51
25 400 10.23 10.08 10.07 10.14
25 245 101.62 101.40 101.40 101.50
26 400 10.20 10.10 10.10 10.14
26 245 101.57 101.43 101.44 101.49
27 400 10.22 10.06 10.11 10.14
27 245 101.60 101.37 101.46 101.50
28 400 10.23 10.08 10.10 10.13
28 245 101.62 101.40 101.45 101.49
29 400 10.24 10.09 10.09 10.12
29 245 101.63 101.42 101.42 101.48
30 400 10.24 10.08 10.07 10.11
30 245 101.63 101.40 101.40 101.47
31 400 10.08 10.11
31 245 101.40 101.47
19
FIGURE 8.
20
FIGURE 9.
21
FIGURE 10.
22
FIGURE 11.
23
FIGURE 12.
24
FIGURE 13.
25
FIGURE 14.
26
FIGURE 15.
27
2.2. WATER ENVIRONMENT
2.2.1. Groundwater
Table 11 shows the groundwater monitoring results of the coverage period including that of the previous period (August 2011) 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 or those that are important to the plant operations. 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.
To be noted as before is the Dissolved Oxygen (DO) level of the North Poblacion Deep Well station. The monitoring result indicates that the DO level is below that of the given minimum value of DENR but consistent with the baseline data showing that no significant impact was made. For this period, the Chemical Oxygen Demand (COD) and the cyanide values are within acceptable levels as compared to the previous period. An alarming value is the Total Suspended Solids (TSS) of Station 3 on September 2011, however it went down again on December 2011. Biological Oxygen Demand (BOD) values for Stations 1 and 3 are also not within the standard value for September and December 2011. This is probably due to domestic causes. 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, stations 1, 2, and 4 displayed desirable results. Station 3 however has slightly exceeded the salinity requirement of the PNSDW as displayed in the previous period possibly due to salt-water intrusion as the said well is near the sea. As mentioned in the first paragraph, it is highly recommended that these deep wells be not used for drinking. 2.2.2. Marine Water
Table 12 shows the marine water monitoring results within the coverage period including that of the previous period (August 2011) while Attachment 2 contains the trending graphs of the previous results of critical parameters with respective DENR standards. Sampling locations are contained 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
28
around the same range to those of the previous period’s results including that of the MMT Baseline Monitoring Activity. Only major observations and changes from the previous period include the rising of Turbidity and TSS levels at Stations 1, 2, 3, and 4. This is possibly due to intertidal effects as low tides tend to increase both of these parameters. Though there is no established standard for these parameters (TSS standard depends on the background value), the power plant operations could not have caused this rise as the values are observed at opposite sides of the coast from the power plant within an hour. With these, it is most probably naturally-occurring. However, KSPC would still recommend strict monitoring of the activities of local and foreign vessels docking in the Naga City area. 2.2.3. 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. Generally, the effluents of the power plant are within the national and World Bank standards. Table 13 summarizes the results of these parameters in comparison to these standards. On October and November, in-house monitoring measured high pH values at Storm Drain 1 but validation by a third party laboratory in September and December proved otherwise. This third party laboratory measured high Residual Cl for September at Storm Drain 1 but this was revalidated by another 3rd Party Laboratory (FastLab, Attachment 3 for the certificate) whose measured values are very low. On December, the same laboratory measured high Residual Chlorine at Storm Drain 2. Since previous values are very low, investigation was carried out and it was found that backwashed seawater have leaked to the storm drains. Repair actions are being evaluated for the moment but there is no harmful impact as this effluent is seawater. 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 four times in the morning and four times in the afternoon on September 30, 2011 and December 28, 2011 to assess the environmental performance of the power plant. Table 14 presents the results that are all within the standard. Figures 16 to 19 show maps of the submerged discharge area and the sampling points. Results show that the thermal effluents are within the national and World Bank standards.
29
11-Aug 11-Sep 11-Dec 11-Aug 11-Sep 11-Dec 11-Aug 11-Sep 11-Dec 11-Aug 11-Sep 11-Dec
pH 7.2 7.2 7.4 7.2 7.2 7.2 6.9 7.0 7.1 8.4 7.2 7.3 6.5-8.5 6.5-8.5
DO, mg/L 7.0 7.0 6.0 7.0 7.0 7.0 6.0 6.0 5.0 3.0 3.0 3.0 N/A 5D
BOD5, mg/L <1 2.0 <1 <1 1.0 <1 <1 2.0 2.0 1.0 1.0 <1 N/A 1
COD, mg/L 10F 19.0 <9 <9
F 10.0 <9 20F 10.0 10.0 39
F 38.0 <9 N/A N/A
TSS, mg/L <1 14.0 1.0 <1 <1 <1 2.0 23.0 1.0 <1 <1 1.0 N/A 25
Oil & Grease,
mg/L<1 <1 1.0 <1 <1 <1 <1 <1 <1 <1 <1 <1 N/A N/A
TDS, mg/L 526F 902.0 734.0 534
F 360.0 230.0 1433F 1144.0 808.0 1053
F 643.0 718.0 500 500E
Total Coliform,
MPN/100mL<1.1 <1.1 <1.1 <1.1 8.00 8.00 <1.1 8.00 2.60 1.10 8.00 2.60 <1.1 50
Cr+6
,mg/L <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 0.05 0.05E
CN, mg/L <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 0.07 0.05
Pb, mg/L <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.01 0.05E
Hg, mg/L <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 0.01 <0.0001 0.001 0.002E
NO3-N, mg/L 2.55F 3.86 3.79 3.84
F 3.99 3.86 3.16F 3.96 3.79 <0.01
F <0.01 0.17 50 1
Cl, mg/L 122.50 114.20 106.10 61.30 47.60 43.70 639.80 333.20 246.50 163.40 139.60 131.00 250 250
BPhilippine National Standards for Drinking Water (2007)
CDAO 90-34 Revised Water Usage and Classification/Water Quality Criteria
DMinimum Standard
EDoes not apply if natural background is higher in concentration
FStill within the natural background values
STN 4
PNSDWB
DENR
StandardC
ASTN 1 - Deepwell Brgy. Upper Colon, STN 2 - Deepwell Brgy. Tangke, STN 3 - Deepwell Brgy. Lower Colon, STN 4 - Deepwell Brgy. North Poblacion
Station/LocationA
Parameters
STN 1 STN 2 STN 3
Table 11. Ground Water Monitoring Results
30
11-Aug 11-Sep 11-Dec 11-Aug 11-Sep 11-Dec 11-Aug 11-Sep 11-Dec 11-Aug 11-Sep 11-Dec 11-Aug 11-Sep 11-Dec
pH 8.1 8.3 7.9 8.2 8.3 8.3 8.2 8.3 8.3 8.2 8.3 8.3 8.2 8.2 8.3 6.0-8.5
DO, mg/L 7 7 7 7 8 7 7 7 7 7 7 7 7 7 7 5C
BOD5, mg/L 2 <1 4 3 <1 2 3 <1 1 4 <1 2 4 <1 1 7(10)D
TSS, mg/L 17 18 54 19 6 51 19 18 52 17 18 54 20 6 23 G
Oil & Grease,
mg/L<1 1.3 1.1 1.1 <1 1 <1 1.3 1.5 <1 1.1 1.3 <1 <1 1.7 3
Total Coliform,
MPN/100mL<1.1 8 <1.1 <1.1 <1.1 <1.1 <1.1 8 <1.1 <1.1 <1.1 <1.1 <1.1 8 <1.1 5000
Cr+6
,mg/L <0.002 <0.002 <0.002 <0.002 0.01 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 0.1E
Turbidity, NTU 0.8 1.9 12.7 0.7 1.5 11.2 0.7 1.9 1.9 0.9 1.6 12 1 1.4 1.2 N/A
CN, mg/L <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 0.05
SO4, mg/L 3021 3021 2597 2739 2683 2605 2802 2675 2561 2808 2640 2529 2874 2640 2588 N/A
Pb, mg/L <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.05E
Hg, mg/L <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 0.002E
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
FStill within the natural background values
GNot more than 30 mg/L increase of the baseline value:
STN 2 baseline - 442 mg/L
STN 1 STN 2 STN 3 STN 4 STN 5
Station/LocationA
STN 3 baseline - 13 mg/L
STN 4 baseline - 22 mg/L
STN 5 baseline - 15 mg/L
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 baseline - 7 mg/L
Table 12. Marine Water Monitoring Results
31
Table 13. Effluents Monitoring Results
Water Effluents Self-Monitoring
Parameters
Cooling Water Effluent Storm Drain 1A Storm Drain 2
A
DENR StandardB
World Bank
Standards (IFC)
Sep Oct Nov Dec
3rd
Party
(Sep)
3rd
Party
(Dec)
Sep Oct Nov Dec
3rd
Party
(Sep)
3rd
Party
(Dec)
Sep Oct Nov Dec
3rd
Party
(Sep)
3rd
Party
(Dec)
pH 7.59 8.54 7.97 8.14 8.2 8.1 8.08 11.72 9.01 7.92 7.5 7.8 7.05 8.63 8.24 8.09 8.3 8 6.0-9.0 6.0-9.0
COD, mg/L C
C
C
C 94 65 9.5 59.5 42.5 29.7 38 21 84.5 2 <0.1 1.69 129 31 200 N/A
Total Residual
Chlorine, mg/L 0.2 0.14 0.04 0.04 0.08E 0.2
E 0.2 0.14 0.05 0.04 0.025 <0.2 0.18 0.1 0.1 0.1 0.025 3.8
F
N/A 0.2
TSS, mg/L G
G
G
G 30 11
G
G
G
G 10 8
G
G
G
G 4 28 150 50
BOD5,mg/L G
G
G
G 17 10
G
G
G
G 15 11
G
G
G
G 23 15 100 N/A
Oil & Grease,
mg/L H
H
H
H <1 1.5
H
H
H
H 1.6 1.1
H
H
H
H <1 <1
10 10
AWhere treated effluent from the sanitary treatment system is discharged together with rain water and backwash seawater; Samples are collected from a
catch basin
BDAO 90-35 Revised Effluent Regulations of 1990
CCOD for the cooling water was not measured as it is still seawater undergoing no physical change but only increased temperature
DNS - No Sampling was made
EResidual Chlorine was measured at the seal pit which is 200 m before discharge to the sea; further Cl digestion is expected at the remaining tunnel length
FThis value is considered erroneous since the discharge point only contains rainwater, treated sanitary effluents and backwash seawater, in-house results and FastLab's result is below the World
Bank limit value
GNo in-house laboratory testing was made due to the inavailability of the instrument to be used for testing
HNo in-house laboratory testing was made since all oily wastewater is treated in the plant's wastewater treatment facility
32
Table 14. Seawater Temperature Data
Date Time Sampling Location
(Temp. in °C)
Baseline Point (Temp. in °C)
Temperature Increase (°C)
Plant Load (% Capacity)
11-Sep
M1-1110AM M2-1120AM
M2 (30.4) M1 (29.4) 1.0 Unit 1-100%, Unit 2-100%
M1-1115AM M2-1125AM
M2 (30.0) M1 (29.2) 0.8 Unit 1-100%, Unit 2-100%
M1-0310PM M2-0325PM
M2 (29.7) M1(29.5) 0.2 Unit 1-100%, Unit 2-100%
M1-0315PM M2-0330PM
M2 (29.4) M1 (28.9) 0.5 Unit 1-100%, Unit 2-100%
11-Dec
M1-1134AM M2-1138AM
M2 (29.1) M1 (27.1) 2.0 Unit 1-100%, Unit 2-100%
M1-1135AM M2-1139AM
M2 (29.1) M1 (28.9) 0.2 Unit 1-100%, Unit 2-100%
M1-0320PM M2-0313PM
M2 (30.0) M1(29.9) 0.1 Unit 1-100%, Unit 2-100%
M1-0321PM M2-0314PM
M2 (30.0) M1 (30.0) 0.0 Unit 1-100%, Unit 2-100%
DENR Standard Temp. Inc. in °C (DAO 90-35) 3.0
World Bank Standard (IFC) Based on the EIA of the project
(DENR Standard)
33
Current direction is SW.
M1 (Ambient Temp.)
M2 (Increased Temp.)
Discharge Point
FIGURE 16. 11-SEP AM SEAWATER TEMPERATURE TESTING POINTS
Current direction is NW.
M1 (Ambient Temp.)
M2 (Increased Temp.)
Discharge Point
FIGURE 17. 11-SEP PM SEAWATER TEMPERATURE TESTING POINTS
Tide Direction
100-m radius
Tide Direction
100-m radius
34
Current direction is SW.
M1 (Ambient Temp.)
M2 (Increased Temp.)
Discharge Point
FIGURE 18. 11-DEC AM SEAWATER TEMPERATURE TESTING POINTS
Current direction is NW.
M1 (Ambient Temp.)
M2 (Increased Temp.)
Discharge Point
FIGURE 19. 11-DEC PM SEAWATER TEMPERATURE TESTING POINTS
Tide Direction
100-m radius
Tide Direction
100-m radius
35
2.3. PANGDAN AND NAALAD Naalad and Pangdan were the chosen areas of ash disposal by the Naga City LGU in consideration to their plan of rerouting the Pangdan river. Ash placed in the Naalad and Pangdan areas were considered industrial waste covered by RA 9003, in which the Naga City LGU was responsible for the implementation and was consulted before the disposal of the historical ash during the site grading of the project. To ensure that the river is not contaminated with heavy metal, ocular inspections and sampling of the river water (upstream and downstream) in both sites was made in the monitoring period. Monitoring was started in July 2011 and the ocular inspections indicate that minimal to no erosion occurred rendering the measures taken as effective. However, since the both areas are private lots, activities on these areas can’t be avoided. The following photos indicate the physical condition of the areas from September to December 2011.
Panoramic views of Naalad area showing vegetation growth in the area effectively covering the historical coal
ash with limestone and earth material.
SEPTEMBER 2011
DECEMBER 2011
36
Views of the slope area in Naalad showing the growth of plants/vegetation planted in the
terrace to help control the erosion and stability of the historical ash landfill.
SEPTEMBER 2011
NOVEMBER 2011
DECEMBER 2011
37
River Water Heavy Metal Content River water was tested for heavy metal content at the upstream and downstream points in both areas to check if the measures made are effective in controlling significant erosion of historical coal ash to the Pangdan river. Table 12 shows a summary of the results of the sampling and analysis made on July 28, 2011 and August 31, 2011. Figures 13 and 14 on the other hand shows maps of the sampling points and nearby quarry sites of river sand and gravel. Generally, the results show that there was no considerable change in the river water’s quality particularly in terms of its heavy metal content. This proves that the measures taken are effective in curtailing the coal ash contamination risk.
SEPTEMBER 2011
Panoramic views of Pangdan area with lush vegetation growth in the area and effective covering of the
historical coal ash with limestone and earth material.
NOVEMBER 2011
DECEMBER 2011
38
9/29/11 10/28/11 11/29/11 12/21/11 9/29/11 10/28/11 11/29/11 12/21/11
Arsenic, As <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.01
Cadmium, Cd <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 0.05
Mercury, Hg <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 0.002
Lead, Pb <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.05
Cyanide, CN <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 n/a
Selenium, Se <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 n/a
Strontium, Sr 1.318 1.085 1.331 1.474 1.315 1.131 1.399 1.617 n/a
Chromium, Cr+6 <0.01 <0.01 <0.01 0.002 <0.01 <0.01 <0.01 <0.002 0.05
9/29/11 10/28/11 11/29/11 12/21/11 9/29/11 10/28/11 11/29/11 12/21/11
Arsenic, As <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.01
Cadmium, Cd <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 0.05
Mercury, Hg <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 0.002
Lead, Pb <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.05
Cyanide, CN <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 n/a
Selenium, Se <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 n/a
Strontium, Sr 1.092 1.327 1.045 2.232 1.116 1.313 0.996 2.254 n/a
Chromium, Cr+6 <0.01 <0.01 <0.01 <0.01 0.002 <0.01 <0.01 <0.002 0.05
DENR
Standard, mg/L
(Class D)
DENR
Standard, mg/L
(Class D)
Heavy Metal
Heavy Metal Concentration in mg/L
Pangdan Upstream Pangdan Downstream
Heavy Metal Concentration in mg/L
Heavy Metal Naalad Upstream Naalad Downstream
Table 15. River Water Heavy Metal and CN Concentration Test Results (Pangdan and Naalad)
39
- Upstream Sampling Point
- Downstream Sampling Point
- Quarry Sites
FIGURE 20. PANGDAN AREA SAMPLING POINTS AND QUARRY
SITES
40
- Upstream Sampling Point
- Downstream Sampling Point
- Quarrying Operations
FIGURE 21. NAALAD AREA SAMPLING POINTS AND QUARRY
SITES
41
2.4. RESETTLEMENT AREA Pavement and concreting works at the resettlement area near the site, including the exposed floors of some houses, have been completed last November 2011. Figure 22 below shows different pictures of the project progress. This ensures that the residents are well-insulated from the historical ash material deposited before the project was even started. As in the previous period, monitoring of the seawater was made at the same four (4) sampling points on September and November 2011 to check whether there is heavy metal contamination from historical coal ash. Figure 23 shows the sampling locations for the heavy metal content seawater testing.
FIGURE 22. RESETTLEMENT AREA PAVEMENT AND CONCRETING WORKS
42
Marine Water Heavy Metal and CN Content The test results indicate that the concentrations of arsenic, cadmium, mercury, lead, and hexavalent chromium are well within the national standards for class SC seawater. This goes to show that the historical ash used as fill material in the resettlement area does not seriously contaminate the seawater. For cyanide, the values are below the detectable levels while for selenium and strontium, the values are consistent from the previous period indicating no abnormalities. Table 16 below shows a summary of the results while Figure 24 displays the sampling pictures. Table 16. Marine Water Heavy Metal Content (Resettlement Area)
Heavy Metal
STN 1 Marissa
Mariano
STN 2 Bering
Baricuatro
STN 3 Neneth
Baricuatro
STN 4 Cora
Africano DENR
Standard
(DAO 90-
34) Sept.
2011
Nov.
2011
Sept.
2011
Nov.
2011
Sept.
2011
Nov.
2011
Sept.
2011
Nov.
2011
Arsenic, As (mg/L) <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.05
Cadmium, Cd (mg/L) <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 0.01
Mercury, Hg (mg/L) <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 0.002
Lead, Pb (mg/L) <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.05
Cyanide, CN (mg/L) <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 0.05
Selenium, Se (mg/L) <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 N/A
Strontium, Sr (mg/L) 5.332 5.172 5.341 5.081 5.456 5.404 5.383 5.302 N/A
Chromium, Cr+6
(mg/L) <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.05
FIGURE 23. RESETTLEMENT AREA SAMPLING POINTS
43
2.5. SOLID AND HAZARDOUS WASTE
Hazardous waste in the plant site includes waste oils, busted fluorescent lamps, and contaminated containers. Within the coverage period, no wastes were disposed. These are currently stored in the designated storage areas in the site. As soon as these wastes are ready for disposal to DENR-accredited treaters or buyers, KSPC will accordingly inform DENR-EMB through this report. Solid wastes in the power plant are categorized as domestic/office and industrial. For the coverage period, a total of 7,180 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. Sludge from the wastewater treatment plant was tested using the Toxicity Characteristic Leaching Procedure (TCLP) to determine whether it is hazardous or not. Results indicate that these are within the limits for industrial waste (See Attachment 4). Because of its very low generation rate (below 50 MT/year), KSPC is disposing and mixing its sludge with the coal ash for possible future recycling use in a properly lined ash pond. The power plant’s coal ash was also tested using TCLP and results also classified it as solid industrial waste (See Attachment 4). Most of the ash is stored in dry form at
FIGURE 24. RESETTLEMENT AREA SEAWATER SAMPLING
44
ash ponds within the KSPC and SPC sites. Possible recycling use (in the cement and construction industries) is expected for this stored material. The remainder of the coal ash generated was recycled by Geo-Transport in their Ready-Mixed Concrete (RMC) business. Table 17 summarizes the industrial and hazardous waste quantities generated and the respective disposal methods.
III. CONCLUSION Based on the environmental monitoring for the period of September to December 2011, the 2x100 MW Cebu Power Plant Project has not caused any adverse or detrimental effect to the nearby surroundings. The availability of recycling options for the coal ash is a positive sign that more quantities if not all of the ash can be disposed of through sustainable means. The findings in this report will be discussed in KSPC’s Multi-Partite Monitoring Team (MMT) and due recommendations will be made. As of the monitoring period, the power plant is in the operations and maintenance period at full load. Certificates of analyses are in Attachment 5 while Attachment 6 contains the rest of the sampling pictures.
45
Table 17. Summary of Solid and Hazardous Waste Generation and Disposal
Coal Ash (Tons)
Wastewater
Treatment Sludge
(Tons)
Waste Oil
(L)
Contaminated
Container (Kg)
Busted Fluorescent
Lamps (Pcs)
Domestic and Office
Solid Waste (Kg)
Stored On-site (Previous) 15,469.90 0.00 874.00 14.00 0.00 0.00
Generation 16,470.00 0.59 758.00 98.50 0.00 7,180.00
Stored On-site (Current) 29,741.73 0.59 1,632.00 112.50 0.00 0.00
Disposal 2,198.17 0.00 0.00 0.00 0.00 7,180.00
TCLP Test Result Passed (Industrial Waste-See Att. 4)
Disposal Method RMC Recycling N/A Through local LGU
garbage collection
* RMC - Ready Mixed Concrete (production by GeoTransport)
* Coal ash is stored at the emergency ash pond within KSPC's site and at the ash ponds within SPC's site