Philippines - Manila Second Sewerage Project : environmental impact assessment (Vol. 2 of 27) : Environmental impact assessment appendicies

W"to SAAI t by Republika ng Pilipinas .~~j PANGASIWAAN NG TUBIG AT ALKANTARILYA SA METROMANILA Metropolitan Waterworks and Sewerage System MANLA SECOND SEWERAGE PROJECT WORLD BANK - JAPANESE GRANT AGREEMENT TF 2252-3 PH MARCH 1995 7~~ oEC ORIGC-NAL ENGINEERING CON&ZJLT-AN TS CC., L7J Dct JC --' ee-=rin Corncrarno  Republika ng Pilipinas PANGASIWAAN NG TUBIG AT ALKANTARILYA SA METRO MANILA METROPOUTAN WATERWORKS AND SEWERAGE SYSTEM 1 MANILA SECOND SEWERAGE PROJECT WORLD BANK - JAPANESE GRANT AGREEMENT TF 2252-3 PH If | ENVIRONMENTAL IMPACT ASSESSMENT * | VOLUME 11 MARCH 1995 I 0 E C ORIGiNAL ENGINEERING CONSULTANTS CO., LTD. in association I with DCCD ENGINEERING CORPORATION  APPENDICES TITLE APPENDIX NO. ENFORM 1 1 Analysis of Sewage Dumping in an Open Sea 2 Septage/Supernatant Characteristics (MWSS-ADB Feasibility 3 Report 1991) Latest Laboratory Analysis of Septage/Supernatant 1994 4 Wind Direction/Wind Speed Data (January-December 1993, 5 Port Area, Manila) Source: PAG-ASA Dagat-dagatan Septage Treatment Plant: Forecast and 6 Assessment of Impact Odor 6.1 Noise 6.2 Communications/Letters 7 Minutes of Meeting 8 Public Consultation Attendance List 9 Perception Survey 10 Survey Forms 10.1 Survey Results 10.2 Traffic Impact Assessment 11 1972 London Convention on the Prevention of Marine Pollution 1 2 by Dumping of Wastes and Other Harmful Matters at Sea  l l I -I ~~~~~~Appendix 1 | ENFORM 1 l I; I  I ENFORM 1 DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES4 PROPONENT : LOCATION: | SHORT DESCRIPTION OF PROJECT: 1. Is your project in any of those areas that fall under the category of "Environmentally Critical Projects" which list appears as Annex A? I/ Yes I/No 2. Is your project in any of those areas within the identified "Environmnentally Critical Areas" which list appear as Annex B? / I_Yes /No I hereby certify that the above infonnation are true to my knowledge, and I shall be held liable iffound to be untrue. Date Proponent I Processing fee P_ Official Receipt: I 4 The material in this appendix has been retyped verbatim from a copy of this form. Usage, spelling, and other errors transcribed from this copy bave not been corrected. 4~~~~~~~~~~~~. l ______  THIS PORTION IS TO BE FILLED UP BY APPROPRIATE DENR AUTHORITY TO WHOM IT MAY CONCERN: This is to certify that I is hereby exemptedfrom PD 1586 and that, therefore, the proponent can proceed with the implementation of the proposed project, subject, however, to the conditions attached to this certificate and other appropriate environmental rules and regulations required by both national and local authorities. Given this day of ,19 ,at (PLACE DENR BY AUTHORITY OF THE DENR SECRETARY: SEAL HERE) (Name & Designation) I I  .1I I I l - l -I Appendix 2 I ANALYSIS OF SEWAGE DUMPING IN A OPEN SEA I I ,I I I I I I I I I I I  ANALYSIS OF ST:WAGfl DLTUNtLPNci IN AN OP!EN SEA (PURELY UNDiER T'fl: [NFl.U> FJO OIL:AL CURRE.T Thc circulation of surfacc watcr au Lhe west coast ol Luoti. Island is generally in a northward vatesrn.. On lhe northern part or ft)c wcst cn;st 01 'Luzon, the circulatioLn is ieflected in the north west direction doii' n tiuc motis o(f December to March, is deslected in the north east direction. dutcinl thUu: moiiis of Jine t.o Sptemnber andi has a. clockwise eddy patxern during thiC [Inolithl Vl ifMay. Thc worst sceario in relaicon to Lhu dumoipin.g or thie sewagzc would have tht following, conditions: 1) The crrent during the months ot June to SpLcinber has a north east direction. This means that the tloaring scwaae cai be carried ;owards the shoreline. Thc flood curetI hasa aluuc of Lo 1 .U A 5 0.i5 i5 mps). 2) The ide along the west cnast or Oe I L..uu s ouu 1 .teus northward is diurnai (on: high, one low). This means 1. im Of C10c2hn !o u or ebbing, however, thert are aiso s.ac;k pCriods dLuc lo F lOws reversal. 3) The sewaga dcnsity is in the ranne Ot o1.03 to L.5 t'm3. This is little above t e. sea density of the Philippiine Sca which t.%s a density of 1.02 to 1.024i/rn The sewage would iloat For sume LI MCi hefdre it sale%s. IT the sewagc is dumPed initially at thc stUrL ol .fiooitnl. the Sewage would travc} some 2..25 km. toward tie shorc. The nexL period wiicn tihe flow reverses (ebbin.z) ttie sewagc would travel backward bv 1'7,8() kM aSWUrTinT thZat the ebb current is .8 o the tlood curent. The net tranmsort distance ovur a uidai cvcie would then be