Memorandum Circular No. 2020-008 on Guidelines for Site Control

Proponent Site Engineering A Controls P P E N D I X 1 APPENDIX 1. ILLUSTRATIVE PROPONENT SITE ENGINEERING CONTROLS TO BE IMPLEMENTED SITE DESCRIPTION: A contaminated site was a former power plant facility with stored transformers (PCB containing) and the site is currently being used as a motor pool area where change oil and other vehicle maintenance activities are being undertaken. The COPC (PCB; Aroclors and its congeners) containing transformers will be disposed-off according to the COPC management plan timelines submitted to the DENR-EMB Chemicals Division pursuant to the Phase-Out plan of the Government as commitment to the Stockholm Convention in 2019. The Proponent or the facility has not designated a Pollution Control Officer (PCO), no inventory of the transformer stored and no submission of reports i.e. SMR; to DENR. No records of accidental spills and other environment-related activities. SITE CONTROL IMPLEMENTATION: The different activities can be implemented. Further, it is viewed that during the site control implementation, the proponent has its own Pollution Control Officer (PCO), have registered for CCO and have submitted its COPC Management Plan. Immediate Activities: Site Control Level 1 (SC1) SC1: Good Housekeeping and Provision of PPEs • Transformers properly labeled and stored • Pallets with spill drain should be provided • Provision of respirator with RC 203 to all staff with access to the contaminated areas SC2: Administrative Control • Install signage and barricades • Information Education Campaign (IEC) • Employ security guards SC2: Engineering Controls* • Screening • Selection SITE CONTROL LEVEL 2: ENGINEERING CONTROLS Step 1: Screening Procedure Rank the control measures from highest to lowest with 1 as the highest. Choose 2 measures with highest ranking and proceed to selection process using selection criteria Table A. Site Control: Perimeter Wall Enclosure of the Contaminated Site Site Control Option Technical (50%) Environmental (25%) Social (25%) Total Rank 1. Concrete wall with provision of sump pit in compliance with the CCO for PCBs 1 1 4 1st 2. Concrete wall with provision of absorbent pads 1 2 2.5 5.5 2nd 3. Cyclone wire 3 3 2.5 8.5 3rd Option no. 1 (Concrete wall with provision of sump pit) and Option no. 2 (Concrete wall with provision of absorbent pads) were chosen during the screening process and will proceed to the next step. Step 2: Selection Procedure Table B. Perimeter Wall Parameter/Criteria Economic Legal Stability Total Rank 1. Concrete with sump (compliance with the CCO for PCBs) 1 1.5 1 3.5 1st 2. Concrete with absorbent pad 2 1.5 2 5.5 2nd Option no. 1 (Concrete wall with provision of sump pit) was selected as the site control technology option for the economic, legal and stability criteria. However, it should be noted that the final selection will depend on the Proponent’s decision on what technology option to implement. Matrix of Site Control Hierarchy A P P E N D I X 2 A P P E N D IX 2 . M A TR IX O F S IT E C O N TR O L H IE R A R C H Y A P P LI C A TI O N W IT H IN D IC A TI V E C O S TS Co n tr ol s/ Co m p on en t R is ks En vi ro n m en ta l Im pa ct s M it ig at in g M ea su re s M on it or in g In d ic at iv e Co st (P hP ) P ro vi si on o f P PE s (R es po n si bl e P er so n /E nt it y: P ro p on en t) CO P C co nt am in at ed so il a n d gr ou n dw at er R is k of e xp os ur e to CO PC In fil tr at io n of CO PC in to th e so ils a nd pe rc ol at io n gr ou nd w at er w ith in a nd a t th e vi ci ni ty o f th e co nt am in at ed ar ea . I ng es ti on of C O PC b y fr es hw at er or ga ni sm s a nd co ns eq ue nt hu m an in ge st io n of th es e aq ua tic or ga ni sm s w it h CO PC . In ha la tio n an d sk in c on ta ct w it h CO PC b y hu m an , pa rt ic ul ar ly w or ke rs as si gn ed in th e ar ea . P P Es ( su it , g lo ve s, fo ot w ea r, h ea dg ea r, re sp ir at or s an d s af et y go gg le s) fo r th e P ro p on en t p er so nn el w ho w il l m an ag e th e CO P C w as te s an d ot he r ha za rd ou s w as te s in t he a re a Fi t t es t o f P PE s ap pr op ri at e to C O PC 5, 00 0/ p er so n Co n tr ol s/ Co m p on en t R is ks En vi ro n m en ta l Im pa ct s M it ig at in g M ea su re s M on it or in g In d ic at iv e Co st (P hP ) A dm in is tr at iv e Co nt ro ls ( R es p on si bl e P er so n /E nt it y: P ro p on en t) CO P C co nt am in at ed so il a n d gr ou n dw at er R is k of e xp os ur e to CO PC In fil tr at io n of CO PC in to th e so ils a nd pe rc ol at io n gr ou nd w at er w ith in a nd a t th e vi ci ni ty o f th e co nt am in at ed ar ea . I ng es ti on of C O PC b y fr es hw at er or ga ni sm s a nd co ns eq ue nt hu m an in ge st io n of th es e aq ua tic or ga ni sm s w it h CO PC . In ha la tio n an d sk in c on ta ct w it h CO PC b y hu m an , pa rt ic ul ar ly w or ke rs as si gn ed in th e ar ea . S ec u ri ty p ro vi si on Pr op on en t s ha ll co m m it fo r t he pr ov is io n of s ec ur ity at th e co nt am in at ed si te w ith p ro pe r P PE . 36 5, 00 0/ ye ar @ 50 0/ da y/ se cu ri ty gu ar d fo r t w o (2 ) se cu ri ty . S ig na ge (n o en tr y to u na u th or iz ed p er so n n el ) T he a dm in is tr at io n of P ro po ne nt s ha ll se e to it th at th e si gn ag e is in ta ct u nt il th e CO PC co nt am in at ed s ite ha s be en re m ed ia te d. 3, 00 0/ si gn ag e M ad e of m ar in e pl yw oo d or s he et m et al w it h st ee l fr am in g, st ea df as t an d w at er p ro of th at w ith st an d w ea th er S ta ke ho ld er s aw ar en es s an d en ga ge m en t A n In fo rm at io n an d Ed uc at io n Ca m pa ig n (I EC ) s ha ll be d on e by P ro po ne nt to in fo rm o r w ar n th e ge ne ra l p ub lic o f t he he al th ri sk o f t he CO PC co nt am in at io n. 50 ,0 00 A tw o (2 ) t im e IE C sh al l b e do ne . Th e IE C sh al l en ta il co st fo r t he re fr es hm en ts o f th e pa rt ic ip an ts . Th e 2n d IE C sh al l be d on e af te r t he pr op os ed si te Co n tr ol s/ Co m p on en t R is ks En vi ro n m en ta l Im pa ct s M it ig at in g M ea su re s M on it or in g In d ic at iv e Co st (P hP ) co nt ro l pr oc ed ur es w er e im pl em en te d an d in iti al re su lts o f en vi ro nm en ta l m on ito ri ng a re al re ad y av ai la bl e. Q ua rt er ly m on ito ri ng of s oi ls a nd gr ou nd w at er fo r CO PC , p ar tic ul ar ly dr in ki ng w at er so ur ce s w ith in a nd in th e vi ci ni ty o f af fe ct ed a re a. 10 ,0 00 /s oi l sa m p le a nd 5, 00 0/ w at er sa m p le In cl ud es a ug er dr ill in g fo r s oi l sa m pl in g, p ur gi ng of s ta gn an t w at er in w el l p ri or to sa m pl in g, sa m pl e pr ep ar at io n an d tr an sp or ta tio n co st . En gi n ee ri ng c on tr ol s (R es p on si bl e P er so n /E n ti ty : P ro p on en t) . P re se nt ed b el ow a re d if fe re nt c ho ic es o f e n gi n ee ri n g co nt ro ls C O P C co nt am in at ed so il , g ro un d w at er R is k of E xp os ur e to C O PC In fil tr at io n of CO PC in to th e so ils a nd pe rc ol at io n A re a is ol at io n b y fe n ci n g w it h ba rb ed w ir e Th e se cu ri ty pr ov is io n sh al l m on ito r t he fe nc e th at s ha ll be p ut u p, 89 /m 2 Th e he ig ht o f t he ba rb ed w ir e fe nc e Co n tr ol s/ Co m p on en t R is ks En vi ro n m en ta l Im pa ct s M it ig at in g M ea su re s M on it or in g In d ic at iv e Co st (P hP ) gr ou nd w at er w ith in a nd a t th e vi ci ni ty o f th e co nt am in at ed ar ea . I ng es ti on of C O PC b y fr es hw at er or ga ni sm s a nd co ns eq ue nt hu m an in ge st io n of th es e aq ua tic or ga ni sm s w it h CO PC . In ha la tio n an d sk in c on ta ct w it h CO PC b y hu m an , pa rt ic ul ar ly w or ke rs as si gn ed in th e ar ea . th e pr ov id ed s ec ur it y sh al l s ee to it th at th e CO PC co nt am in at ed si te is o ut o f r ea ch o f th e ge ne ra l p ub lic un til th e CO PC co nt am in at ed si te ha s be en re m ed ia te d. is 1 .9 0 m et er s. Th e en tr an ce g at e w it h pa dl oc k is m ad e of b ar be d w ir e in st ee l f ra m e w it h an o pe ni ng o f 4 m et er s a nd he ig ht o f 2 .3 m et er s. P la ce m en t o f c ov er to p re ve nt C O P C m ig ra ti on b y ra in w at er Th e pr ov id ed se cu ri ty a s ad m in is tr at iv e m ea su re s ha ll se e to it th at th e CO PC co nt am in at ed si te is 20 6/ m 2 Fo r c ov er u si ng H D PE sh ee t. 5, 10 0/ m 2 Co n tr ol s/ Co m p on en t R is ks En vi ro n m en ta l Im pa ct s M it ig at in g M ea su re s M on it or in g In d ic at iv e Co st (P hP ) ou t o f r ea ch o f t he ge ne ra l p ub lic u nt il th e CO PC co nt am in at ed si te ha s be en re m ed ia te d. Fo r f ac ili ty w it h ex is ti ng co nc re te en cl os ur e co m pe te nt e no ug h to c ar ry G .I. co rr ug at ed ro of an d st ee l t ru ss . Th is o pt io n is m or e se cu re d th an b y ju st pl ac em en t o f H D PE co ve r. S ta ke ho ld er s aw ar en es s on fa te o f CO P C th ro ug h so il a n d w at er m on it or in g Q ua rt er ly m on ito ri ng of s oi ls , g ro un dw at er an d su rf ac e w at er fo r CO PC , p ar tic ul ar ly dr in ki ng w at er so ur ce s w it hi n an d in th e vi ci ni ty o f af fe ct ed a re a. T hi s sh ou ld b e m ad e do w ns tr ea m o f co nt am in at ed si te . If e xi st in g w el l/ s ex is t i n th e vi ci ni ty , th is c an b e us ed to re du ce c os t o f 10 ,0 00 /s oi l sa m p le a nd 5, 00 0/ w at er sa m p le In cl ud es a ug er dr ill in g fo r s oi l sa m pl in g, p ur gi ng of s ta gn an t w at er in w el l p ri or to sa m pl in g, s am pl e pr ep ar at io n an d tr an sp or ta tio n co st . 15 0, 00 0/ m on it o ri ng w el l Co n tr ol s/ Co m p on en t R is ks En vi ro n m en ta l Im pa ct s M it ig at in g M ea su re s M on it or in g In d ic at iv e Co st (P hP ) de ve lo pi ng m on ito ri ng w el l. In cl ud es d ri lli ng , uP VC ca si ng , gr av el p ac k, ce m en t g ro ut w el l de ve lo pm en t, pu m pi ng te st a nd w el l h ea d pr ot ec tio n an d se cu ri ty . B or eh ol e di am et er is 15 0m m a nd ca si ng d ia m et er is 75 m m . R ep or ti n g (R es p on si bl e P er so n /E n ti ty : P ro p on en t) S ta ke ho ld er s/ T ra n sp ar en cy A n In fo rm at io n an d Ed uc at io n Ca m pa ig n (I EC ) s ha ll be d on e by P ro po ne nt to in fo rm th e ge ne ra l pu bl ic o f t he re su lts of s it e co nt ro l a t t he vi ci ni ty o f t he co nt am in at ed si te . 50 ,0 00 S ec on d IE C sh al l be d on e af te r t he pr op os ed si te co nt ro l m ea su re s ar e im pl em en te d an d in iti al re su lts of e nv ir on m en ta l m on ito ri ng a re al re ad y av ai la bl e. Th e IE C sh al l en ta il co st fo r t he Co n tr ol s/ Co m p on en t R is ks En vi ro n m en ta l Im pa ct s M it ig at in g M ea su re s M on it or in g In d ic at iv e Co st (P hP ) re fr es hm en ts o f th e pa rt ic ip an ts . Indicative Costs for Technology A Options P P E N D I X 3 APPENDIX 3. INDICATIVE COSTS FOR TECHNOLOGY OPTIONS AN ILLUSTRATION for a PCB CONTAMINATED SITE INDICATED IN APPENDIX 1 (Costings based on September 2016 prices) Area Isolation by Fencing I. Concrete/ CHB Perimeter Wall Area to be Fenced = 1.2 Hectares = 12,000 m2 CHB: Height above H.G.L. = 240 m Height below H.G.L. = 0.40 m Total Height = 2.80 m A120 = 120 x 2.80 x 2 = 672 m2 A100 = 100 x 2.80 x 2 = 560 m2 Total area to be covered by CHB = 1,232 m2 Total number of 6” CHB = 1232 x 12.5 = 15,400 Total number of columns @ 3m spacing = (33+1)2 + (40+1)2 = 68 + 82 = 150 Volume of columns = 0.30 x 0.30 x 3 x 150 = 40.5 m3 Volume of footings = 1.00 x 1.00 x 0.25 x 150 = 37.5 m3 Volume of base concrete = 0.20 x 0.15 x 440 = 13.2 m3 Volume of gravel base = 0.20 x 1.00 1.00 x 150 = 30 m3 Total volume of concrete = 40.5 + 37.5 + 13.2 = 91.2 m3 Concrete: Cement = 91.2 x 7.84 = 715.008 = 716 bags Sand = 91.2 x 0.44 = 40.128 = 41 m3 Gravel = 91.2 x 0.88 = 80.256 = 81 + 30 = 111 m3 Plaster: A = 2.40(120 x 2) + 2.40(100 x 2) = 576 + 480 = 1,056 m2 V = 1,056 x 0.012 x 2 = 25.42 m3 Cement = 25.43 x 5.50 = 139.37 = 140 bags Sand = 25.43 x 0.90 = 22.806 = 23 m3 Mortar: 15400 pcs x 0.0028 = 43.12 m3 Cement = 43.12 x 12.04 = 519.16 = 520 bags Sand = 43.12 x 0.97 = 41.83 = 42 m3 Rebars: 120 m 100 m Columns = 4 x 3.25 x 150 = 1,950 1,950/7.5 = 260; 260 pcs – 12 mmϕ x 750 m 260 pcs – 16 mmϕ x 7.50 m Ties: 16 x 1.50 x 1.50 = 3,600 3,600/6 = 600; 600 pcs – 10 mmϕ x 6.00 m Footings = 150 nos. = 8 x 2 150 x 1.20 = 2880 2880/6 = 480; 480 pcs – 16 mmϕ 6.00 m CHB: Vertical bars (10 mmϕ @ 0.60) = 2(120/0.06) + 2(100/0.06) = 400 + 334 = 734 Height of CHB = 3.25 734 x 3.25 = 2,385.50 2,385.50/7.5 = 318.07; 319 pcs – 10 mmϕ x 7.50 m Horizontal bars (12 mmϕ @0.60) 6 Layers: (120 x 2) + (100 x 2) = 440 x 6 = 2,640 2,640/7.5 = 352; 352 pcs – 12 mmϕ x 7.50 Entrance/Pedestrian gate: Cyclone wire A = 4 x 2.30 = 9.20 m2 = 10 m2 G.I. pipe = 50 mmϕ x 6 m SCH 40 = (4 x3) + (4 x 2.30) = 12 + 9.2 = 21.2 = 21.2/6 = 3.53 = 4 pcs 4 pcs – 50 mmϕ x 6 m G.I. pipe SCH 40 1 pcs – 25 mmϕ x 6 m G.I. pipe SCH 40 Flat Bar = 25 mm x 5 mm x 6 m = (2.3 x 4) + (4 x 4) = 9.2 = 16 = 25.2 = 25.2/6 = 4.2 = 5 pcs 5 pcs – 25mm x 5mm x 6m Round Bar: 1 pc – 19 mmϕ G.I. Plain Bar 1 pc – 20 mmϕ Plain round bar Heavy duty padlock: 1 pc Materials Cost : 6” CHB = 15,400 pcs x ₱15.00/pc = ₱ 231,000.00 Cement = 1,376 bags x ₱220.00/bag = ₱ 302,720.00 Sand = 106 m3 x ₱225.00/m3 = ₱ 23,850.00 Gravel = 111 m3 x ₱250.00/m3 = ₱ 27,750.00 Rebars: 16 mmϕ x 7.50 m = 260 pcs x ₱313.00/pc = ₱ 81,380.00 16 mmϕ x 6.00 m = 480 pcs x ₱250.00/pc = ₱ 120,000.00 12 mmϕ x 7.50 m = 612 pcs x ₱189.14/pc = ₱ 115,753.68 10 mmϕ x 7.50 m = 319 pcs x ₱123/pc = ₱ 39,237.00 10 mmϕ x 6.00 m = 600 pcs x ₱98/pc = ₱ 58,800.00 Entrance/Pedestrian gate: Cyclone wire = 10 m2 x ₱160.00/m2 = ₱ 1,600.00 G.I. pipe: 50 mmϕ x 6 m = 4 pcs x ₱942.50/pc = ₱ 3,770.00 25 mmϕ x 6 m = 1 pcs x ₱467.00/pc = ₱ 467.00 Flat Bar: 25 mm x 5 mm x 6 m = 5 pcs x ₱333.00/pc = ₱ 1,665.00 Round Bar: 19 mmϕ G.I. Plain bar = 1 pc x ₱595.00/pc = ₱ 595.00 20 mmϕ Plain bar (round) = 1 pc x ₱662.00/pc = ₱ 662.00 Heavy duty padlock: 1 pc x ₱1,000.00/pc = ₱ 1,000.00 Total = ₱1,010,249.68 Materials = ₱1,010,249.68 = ₱1,010,249.68 Labor (30%) = 0.30(₱1,010,249.68) = ₱ 303,074.90 Contingency (5%) = 0.05(₱1,010,249.68 + 303,074.90) = ₱ 65,666.23 Total Cost = ₱1,378,990.81 Description: Total cost of concrete/CHB perimeter wall = ₱1,378,991.00 Unit Cost / Square Meter = ₱ 115.00 Area to be covered = 1.2 Hectares = 12,000 m2 Height of 6” CHB wall from finish ground level (F.G.L.) = 2.40 m Cyclone wire entrance and pedestrian gate with padlock: Opening = 4.00 m Height = 2.30 m II. Cyclone wire/ CHB perimeter wall CHB: Height above F.G.L. = 0.40 m Height below F.G.L. = 0.40 m Total Height = 0.40 + 0.40 = 0.80 m Fence Perimeter = 2(100) + 2(120) = 200 + 240 = 440 m Total area to be covered by CHB = 0.80 x 440 = 352 m2 Total number of 6” CHB = 352 x 12.5 = 4,400 Total number of columns @ 3 m spacing = 150 Volume of columns1 = 0.30 x 0.30 x 3.00 x 6 = 1.62 m3 Volume of columns2 = 0.15 x 0.15 x 1.00 x 144 = 3.24 m3 Total volume of columns = 1.62 + 3.24 = 4.86 m3 Volume of footings1 = 1.00 x 1.00 x 0.25 x 6 = 1.50 m3 Volume of footings2 = 0.80 x 0.80 x 0.25 x 144 = 23.04 m3 Total volume of footings = 1.50 + 23.04 = 24.54 m3 Volume of base concrete = 0.20 x 0.15 x 440 = 13.20 m3 Volume of gravel base1 = 0.10 x 1.00 x 1.00 x 6 = 0.60 m3 Volume of gravel base2 = 0.10 x 0.80 x 0.80 x 144 = 9.22 m3 Total volume of gravel base = 0.60 + 9.22 = 9.82 ≈ 10.00 m3 Total volume of concrete = 4.86 + 24.54 + 13.20 = 42.60 m3 Concrete: Cement = 42.60 x 7.84 = 333.98 = 334 bags Sand = 42.60 x 0.44 = 18.74= 19 m3 Gravel = 42.60 x 0.88 = 37.49= 38 m3 Plaster: A = 0.40x 440 = 176 m2 V = 176 x 0.012 x 2 = 4.224 m3 Cement = 4.224 x 5.50 = 23.23 = 24 bags Sand = 4.224 x 0.90 = 3.80 = 4 m3 Mortar: 4,400 pcs x 0.0028 = 12.32 m3 Cement= 12.32 x 12.04= 148.33= 149 bags Sand = 12.32 x 0.97 = 11,95= 12 m3 Rebars: Columns1 = 4 x 3.25 x 6 = 78 78/7.5 = 10.4 = 11; 11 pcs – 12 mmϕ x 7.50 m 11 pcs – 16 mmϕ x 7.50 m TIES: 16 x 1.50 x 6 = 144 144/6 = 24; 24 pcs – 10 mmϕ x 6.00 m Columns2 = 4 x 1.80 x 144 = 1,036.80 1,036.80/6 = 172.8 = 173; 173 pcs – 16 mmϕ x 6.00 m TIES: 4 x 0.65 x 144 = 374.4 374.4/6 = 62.4 ; 63 pcs – 10 mmϕ x 6.00 m Footings1 = 8 x 2 x 1.20 x 6 = 115.20 115.20/6 = 19.2 = 20; 20 pcs – 16 mmϕ x 6.00 m Footings2 = 6 x 2 x 1.00 x 144 = 1,728 1728/6 = 288; 288 pcs – 16 mmϕ x 6.00 m CHB: Vertical Bars: (10 mmϕ @ 0.60) = 2(120/0.60) + 2(100/0.60) = 400 + 334 = 734 Height of CHB = 0.80 734 x 0.80 = 587.20 587.20/7.5 = 78.29; 79 pcs – 10 mmϕ x 7.50 m Horizontal Bars: (12 mmϕ @ 0.60) 2 Layers = 440 x 2 = 880 880/7.5 = 117.33; 118 pcs – 12 mmϕ x 7.50 m Entrance/ Pedestrian gate: Cyclone wire: A = 4 x 2.30 = 9.20 = 10 m2 G.I. pipe = 50 mmϕ x 6.00 m SCH 40 = (4 x 3) + (4 x 2.3) = 12 + 9.2 = 21.2 = 21.2/6 = 3.53 = 4 pcs 4 pcs – 50 mmϕ x 6.00 m G.I. pipe SCH 40 1 pc – 25 mmϕ x 6.00 m G.I. pipe SCH 40 Flat bar = 25 mm x 5 mm x 6 m = (2.3 x 4) + (4 x 4) = 9.2 + 16 = 25.2 = 25.2/6 = 4.2 = 5 pcs 5 pcs – 25 mm x 5 mm x 6 m Round bar: 1 pc – 19 mmϕ G.I. Plain bar 1 pc – 20 mmϕ plain round bar Heavy duty padlock: 1 pc Materials Cost : 6” CHB = 4,400 pcs x ₱15.00/pc = ₱ 66,000.00 Cement = 507 bags x ₱220.00/bag = ₱ 111,540.00 Sand = 35 m3 x ₱225.00/m3 = ₱ 7,875.00 Gravel Rebars: = 48 m3 x ₱250.00/m3 = ₱ 12,000.00 16 mmϕ x 7.50 m = 11 pcs x ₱313.00/pc = ₱ 3,443.00 16 mmϕ x 6.00 m = 481 pcs x ₱250.00/pc = ₱ 120,250.00 12 mmϕ x 7.50 m = 129 pcs x ₱189.14/pc = ₱ 24,399.06 10 mmϕ x 7.50 m = 79 pcs x ₱123/pc = ₱ 9,717.00 10 mmϕ x 6.00 m = 87 pcs x ₱98/pc = ₱ 8,526.00 Entrance/Pedestrian Gate: Cyclone wire = 10 m2 x ₱162.00/m2 = ₱ 1,600.00 G.I. Pipe = 50 mm x 6m – 4 pcs x ₱942.50/pc = ₱ 3,770.00 = 25 mm x 6m – 1 pcs x ₱467.00/pc = ₱ 467.00 Flat Bar = 25 mm x 5 mm x 6 m - 5 pcs x ₱333.00/pc = ₱ 1,665.00 Round Bar = 19 mmϕ G.I. Plain bar – 1 pc x ₱595.00/pc = ₱ 595.00 = 20 mmϕ Pain bar (round) – 1 pc x ₱662.00/pc = ₱ 662.00 Heavy Duty padlock: 1 pc x ₱1,000.00/pc = ₱ 1,000.00 Cyclone wire fence A = 836 m2 = 836 m2 x ₱160.00/m2 = ₱ 133,760.00 G.I. pipe SCH 40: 50 mmϕ x 6m = 205 pcs x ₱942.50/pc = ₱ 193,212.50 Flat bar: 25 mmϕ x 5 mm x 6m =245 pcs x ₱333.00/pc = ₱ 81.585.00 = ₱ 782,066.56 Materials = ₱782,066.56 = ₱ 782,066.56 Labor (30%) = 0.30(782,066.56) = ₱ 234.619.97 Contingency (5%) = 0.05(782,066.56 + 234.619.97) = ₱ 50,834.33 Total cost = ₱1,067,520.86 Description: Total cost of Cyclone Wire/ CHB Perimeter wall = ₱1,067,520.86 Unit Cost / Square Meter = ₱ 1,067,521.00 / 12,000 = ₱ 89.00 Area to be covered = 1.2 hectares = 12,000 m2 Cyclone wire fence height = 1.90 m Height of 6” CHB wall from finish ground level (F.G.L.) = 0.40 m Cyclone wire entrance and pedestrian gate with padlock. Opening = 4.00 m Height = 2.30 m A SCAP Scoping Checklist P P E N D I X 4jok\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\ APPENDIX 5. SCAP SCOPING CHECKLIST Step 1. Is the site Contaminated ? ( Y N M ) • If answer is Y (Yes), Show proof (ESA) and go to question 2. • If answer is N (No), show proof (ESA or Environmental Sampling Results) and no site control measures are required. I no proof can be shown, conduct ESA. • If answer is M (Maybe), conduct an ESA and Proceed to question No. 2. Step 2. What is/are the COPC/s and concentration/s present on site? a. Pesticides - Aldrin, Chlordane, Dichlorodiphenyltricloroethane (DDT), Dieldrin, Endrin, Heptachlor, Hexachlorobenzene (HCB), Mirex and Toxaphene; b. Industrial Chemicals – HCB, Mirex and COPCs - Polychlorinated Biphenyls (209 congeners), c. Unintended by-products - Dioxins (75 Congeners), Furans (135 Congeners) and HCB. Suggested Matrix to be filled up Contaminant Concentration Suspected Area/Location Supporting Documents Note: If Step 2 is sufficiently answered, Proceed to Step 3. Else, go back to Step 1. Step 3. Was/were the hotspot/s identified? • A map delineating the contaminated area within a facility should be shown or the identified hotspots based on the ESA document and validation sampling. • Results of analysis can also be attached. Note: If the hotspots were clearly delineated, proceed to Step 4, else validate ESA. Step 4. Are there receptors around the identified contaminated site? Specify and Identify. Human Receptors d. Persons visiting or working at the site and its adjacent land-use; e. Persons living near the site or temporarily living in the site; f. Construction workers who may be involved in future construction works at the site. g. Persons who have access to the possibly COPC contaminated areas Environmental Receptors o Soil within the area o Nearest surface water o Groundwater that may be possibly contaminated by COPC Other Receptors Information • Receptors coordinates (based on available info) N, S, E, W or Northing /Easting • Map identifying the receptors (nearest river, nearest communities, neighboring areas, among others) • Attached the Conceptual Site Model (CSM) generated rom the ESA study Note: If Step 4 is answered completely, proceed to Step 5, else validate results of ESA. Step 5. Applicable Site Control Measures Always consider the inverted triangle: Hierarchy of Site Control Measures of a Contaminated Site, shown below, when developing the site control options. Proposed Site Control Measures Matrix to be filled up Type of Site Control Measures Description of Activities/Tasks Concerned Receptor Responsible Person Site Control Level 1 Good Housekeeping Provision of PPEs Institutional Controls (DENR EMB to fill up) Site Control Level 2 Administrative Controls Engineering Controls Others Monitoring