Environmental Monitoring Results · 2014-09-29 · Environmental Monitoring Results This report has...

Environmental Monitoring Results

This report has been submitted to ADB by KEPCO-SPC Power Corporation and is made publicly available in accordance with ADB’s public communications policy (2005). It does not necessarily reflect the views of ADB.

Loan number: 2612/7303 4th Quarter of 2010

PHI: Visayas Base-Load Power Development Project

Prepared by KSPC Power Plant Construction Office

Philippines

For the Asian Development Bank

2 x 100 MW CEBU POWER PLANT

2011.01

KSPC Power Plant Construction Office

Environmental Monitoring Results (4

th Quarter of 2010)

2 x 100 MW Cebu Power Plant

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Table of Contents

I. Results of Environmental Monitoring covering the 4th Quarter of 2010

Attachments

Attachment 1 - Certificate of Monitoring Results/Monitoring

Report conducted last December 2010 Attachment 2 - Monitoring Stations Attachment 3 - Construction Progress Photos


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I. Results of Environmental Monitoring covering the 3rd Quarter of 2010

The monitoring results shown in Tables 1 to 5 covers the coverage period from October to December 2010 (4th quarter of 2010). Basically, the environmental monitoring comprises of 3 major analyses: 1) Ambient Air (premises near the site & construction site itself), 2) Marine Water, and 3) Groundwater. 1.1. Ambient Air Monitoring (premises near the site and construction site

itself) The monitoring stations for this quarter were based on the monitoring stations of the EIS which are also those used in KSPC’s MMT Baseline Monitoring Activity. Ambient Air monitoring covers 7 monitoring stations near the construction site premises, particularly within Barangay Colon and Barangay Tangke. Five (5) parameters are being monitored (refer to Table 1). Based on the results, there were no exceedances observed with reference to DAO 14. Noise levels now don’t exceed the standard given by the National Pollution Control Commission (NPCC) compared to the previous quarter. The day-time noise levels have dropped compared to the previous quarter. The Total Suspended Particles (TSP) at Station 4 is also evident attributable to vehicle emissions since this station is near the National Road and public pavements. A total of 17 vehicles were recorded to have passed by the sampling area. Tables 2 & 3 show the monitoring results for the TSP and Noise analyses at the Construction Site. Based on the result, there has been no exceedance observed.

1.2. Marine Water Quality Monitoring Table 4 shows the monitoring results of the marine water quality. Five (5) stations were used for this monitoring with eighteen (18) parameters analyzed. Generally, the monitoring results indicate that there have been no adverse impacts to the receiving 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 quarters’ results including that of the MMT Baseline Monitoring Activity. Though there is no prescribed standard, turbidity has increased from the previous period but is still within the range of values in all stations. This is probably due to the rainy season. It is important to note that all data


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gathered will be used as baseline reference for the monitoring during the operations phase of the power plant.

1.3. Groundwater Analysis Table 5 shows the monitoring results for the groundwater analysis. Four (4) stations were used for this monitoring with nineteen (19) parameters analyzed. Generally, the monitoring results indicate that groundwater stations tested are still within acceptable levels. Though some of the results are not within the standards, they are all within the range and trend of the baseline data from the EIS, the MMT, and previous monitoring results. 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. All Biochemical Oxygen Demand (BOD5) values of the four stations have dropped from the previous period to a value that is within the prescribed standard. The results still indicate that there is high bacterial activity in the stations, thus it is recommended that these stations be not used for drinking. 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 while the previously high value in Barangay Tangke Station dropped this quarter. This is again, as mentioned in the previous reports, attributable to the natural background of the area and the increasing temperature in this season causing increases in solubility. For the chloride levels, stations 1, 2, and 4 displayed desirable results. Station 4 however has increased from the previous period but is still within the standard and baseline values.


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II. Construction Progress

As of December 31, 2010, the total progress of the Cebu Power Plant project is 98.56%. Below is a table showing the breakdown of the progress rate in terms of the project’s components.

Project Component Weighted Average Actual Completion Completion Rate

(%)

Engineering 11.49 11.49 100.00

Procurement 52.65 52.65 100.00

Construction 25.16 25.04 99.52

Commissioning 10.70 9.38 87.66

TOTAL 100 95.80 98.56

III. Conclusions

Based on the environmental monitoring on the three aspects, namely, 1) Ambient Air, 2) Marine Water and 3) Groundwater, the 2x100 MW Cebu Power Plant Project has not caused any adverse or detrimental effect to the nearby surroundings. The findings in this report will be discussed in KSPC’s Multi-Partite Monitoring Team (MMT) and due recommendations will be made. It must be noted that the power plant has not yet operated so the data gathered at this part of the project, is useful as reference and baseline data for the operations period. The more results obtained, the clearer the baseline data is defined.

For the certificate of the analyses, refer to Attachment 1. For the mapping of the monitoring stations refer to Attachment 2. For the Construction Progress Photos refer to Attachment 3.

Table 1. AMBIENT AIR QUALITY (2010 4th Quarter Monitoring Period)

Station/Location

PARAMETERS

Observations during sampling TSP,

µg/Ncm

SO2,

µg/Ncm

NO2,

µg/Ncm

Noise,

dBA

CO,

ppm

Station 1 Brgy. Tangke,

Basketball Court 6 5 <0.01 58.5 0

� Time: 11:13-11:43 AM

� Wind Direction: N to S

� Source of noise is from nearby radio

Station 2 Sitio Lower Colon,

front of Brgy. Hall <1 3 1 59.0 0

� Time: 10:40-11:10 AM

� Wind Direction: NW to SE

� No significant activities observed

Station 3 Brgy. Colon

front of Nestor Cadia Res. 16 3 3 55.6 0

� Time: 10:00-10:30 AM

� Wind Direction: NE to SW

� No significant activities observed

Station 4 Along National Road

cor., Alinganga St., Near

Perimeter Fence of SPC Power

Corp.

284 8 8 60.2 0

� Time: 01:10-01:40 PM


� Muddy area with approximately 17

vehicles that passed

Station 5 Naga Municipal Hall,

Plaza Area <1 5 3 54.5 0

� Time: 11:55-12:25 Noon

� Wind Direction: SW to NE

� Source of noise from nearby radio

Station 6 construction site,

near Pier Area <1 5 2 66.4 0

� Time: 12:25-01:05 PM

� Wind Direction: SE to NW

� Normal daily activities on-going

Station 7 Infront of Mangikis

Chapel, Sition Mangikis <1 <0.01 <0.01 54.4 0

� Time: 12:55-01:05 PM


� Source of noise is from passing people

Minimum Detection Limit 1 <0.01 <0.01 - 0

DENR Standard (DAO 14) 300 340 260 75

(Category D) 30

Table 2. Dust Emissions at Construction Site (2010 4th

Quarter Monitoring Period)

Location Total Suspended

Particulate (TSP),

µg/NCM

Near Guard House/Main Gate 6

Near Administration Building 3

Left side of the plant near the Fire Fighting Pump

House <1

Back of the site near the Stack (Left Side Center) <1

DENR Standard 300

Table 3. Noise Measurements at Construction Site (2010 4th


Location Noise Reading,

dBA

Near Main Guard House 66.3

Left side approx. 100 m from National Road 72.0

Left side center near the fuel tank 68.9

Back left side near the perimeter fence 73.7

Center back near shoreline 66.4

Back side near shoreline and perimeter fence 62.3

Right side near office 67.0

DENR Standard (NPCC Standard, Category D) 75

Table 4. MARINE WATER QUALITY (2010 4th


Station/Location

PARAMETERS

pH Color

(Apparent), PCU

DO,

mg/L

BOD5,

mg/L

COD,

mg/L

TSS,

mg/L

Oil & Grease,

mg/L

TDS,

mg/L

Stn 1 Front of City Hall 8.2 3 7 <1 115 34 <1 38,866

Stn 2 Front of North

Poblacion 8.2 10 7 <1 133 13 <1 28,082

Stn 3 Front of Const.

Site 8.2 1 7 <1 115 33 <1 36,829

Stn 4 Front of Colon

Elem. School 8.2 1 7 2 127 33 <1 36,255

Stn 5 Front of Tuyan 8.1 1 7 2 103 3 <1 33,663

DENR Standard

(DAO 34 – SC) 6.0-8.5 - 5 (min) 7 (max) - Baseline +30 3 -

Continuation…

Station/Location

PARAMETERS

Total coliform,

MPN/100mL

Cr+6

,

mg/mL

Turbidity,

NTU

Cyanide (CN),

mg/L

SO4,

mg/L

Lead(Pb),

mg/L

Iron (Fe),

mg/L

Manganese

(Mn), mg/L

Stn 1 Front of City Hall 2.6 <0.002 3.1 <0.05 2,704 <0.01 <0.02 <0.003


Poblacion 8.0 <0.002 2.7 <0.05 2,671 <0.01 <0.02 <0.003


Site <1.1 <0.002 2.4 <0.05 2,669 <0.01 <0.02 <0.003


Elem. School 8.0 0.006 2.7 <0.05 2,640 <0.01 <0.02 <0.003

Stn 5 Front of Tuyan 4.6 0.004 2.7 <0.05 2,650 <0.01 <0.02 <0.003

DENR Standard

(DAO 34 – SC) 5000 0.1 - 0.05 - 0.05 - -

Table 4. Continuation…

Station/Location

PARAMETERS

Mercury

(Hg), mg/L

NO3-N,

mg/L

Stn 1 Front of City Hall <0.0001 0.05


Poblacion <0.0001 0.09


Site <0.0001 0.04


Elem. School <0.0001 0.03

Stn 5 Front of Tuyan <0.0001 <0.01

DENR Standard

(DAO 34 – SC) 0.002 -

Table 5. Groundwater Analysis (2010 4th


Station/Location

PARAMETERS

pH

Color

(Apparent),

PCU

DO,

mg/L

BOD5,

mg/L

COD,

mg/L

TSS,

mg/L

Oil & Grease,

mg/L

TDS,

mg/L

Brgy. Colon Near Brgy. Hall 7.1 1 5 <1 <9 2 <1 852

Deep Well - Upper Colon 7.1 1 5 <1 <9 <1 <1 582

Brgy. Tangke Deep Well 7.2 1 7 1 <9 2 <1 517

North Poblaction Deep Well 7.1 5 2 <1 9 <1 <1 868

PNSWD, ‘07 6.5-8.5 10 - - - - Nil 500

DAO 34 (Class AA) 6.5-8.5 15 5 (min) 1 - 25 Nil 500 Continuation…

Station/Location

PARAMETERS

Total coliform,

MPN/100mL

Cr+6

,

mg/mL

Turbidity,

NTU

Cyanide (CN),

mg/L

SO4,

mg/L

Lead(Pb),

mg/L

Iron (Fe),

mg/L

Manganese

(Mn), mg/L

Brgy. Colon Near Brgy. Hall >8.0 <0.002 1.5 <0.05 66 <0.01 <0.02 <0.003

Deep Well - Upper Colon 2.6 <0.002 1.0 <0.05 49 <0.01 <0.02 <0.003

Brgy. Tangke Deep Well 1.1 <0.002 0.6 <0.05 26 <0.01 <0.02 <0.003

North Poblaction Deep Well 4.6 <0.002 1.5 <0.05 95 <0.01 <0.02 <0.003

PNSWD, ‘07 1.1 0.05 5 0.07 250 0.01 1 0.4

DAO 34 (Class AA) 50 0.05 - 0.05 - 0.5 - - Continuation…

Station/Location

PARAMETERS

Mercury (Hg),

mg/L

NO3-N,

mg/L

Chloride,

mg/L

Brgy. Colon Near Brgy. Hall <0.0001 3.60 250.1

Deep Well - Upper Colon <0.0001 3.84 86.8

Brgy. Tangke Deep Well <0.0001 3.81 30.5

North Poblaction Deep Well <0.0001 <0.01 164.2

PNSWD, ‘07 0.001 50 250

DAO 34 (Class AA) 0.002 - 250


2011.01


Certificate of Analysis / Monitoring Report


2011.01


Monitoring Stations

MAP SHOWING LOCATION OF AIR SAMPLING STATIONS

CONSTRUCTION

SITE

Station 5 – Naga Municipal Hall

Station 4 – Along Nat. Rd. cor., Aliganga St.

Station 7 – Mangikis Chapel

Station 1 – Brgy. Tangke,

Basketball Court

Station 6 – Near Pier Area

Station 2 – Brgy. Hall, Colon

Station 3 – Brgy. Colon, front of Nestor Cadia

Res.

MAP SHOWING LOCATION OF MARINE AND GROUNDWATER STATIONS

TSP Stn – Near Guard House/Main Gate

TSP Stn – Left of Guard House

TSP Stn – Approx.

30m from shoreline

TSP & Noise Stn – Near Proposed

Admin Bldg.

MAP SHOWING LOCATION OF TSP and NOISE MONITORING STATIONS

Noise Stn – 10m away

from shoreline

Noise Stn – Center, 5-10 m

From shoreline

Noise Stn – Left Side facing

the shoreline

Noise Stn – Left Corner,

10m from Nat. Rd.

Noise Stn – Center, 20m

from Nat. Rd.

Noise Stn – Right Corner, 10m from Nat. Rd.


2011.01


Construction Progress Photos



Electrostatic Precipitator #2

On going installation of insulation

Achievement of 100% load (103MW) Operation

November 30, 2010



Limestone Storage Silo

(December 2010)

Heavy Equipment Maintenance Shop

(December 2010)



Nitrogen Storage Shed

(December 2010)

On going installation of U-ditch

(December 2010)



Settling Pond

(December 2010)

Bed and Fly Ash Silo

(November 2010)



Steam Turbine #1 & #2 – Installed Noise Abatement Barrier

(December 2010)

Main Warehouse & Workshop

(December 2010)



Front View of the Cebu Power Plant from the Mountains of Brgy. Colon

(December 2010)

Rear View of the Cebu Power Plant from existing jetty

(December 2010)

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