Solid Waste Management

Situationer

The current solid waste disposal site in the City is a five-hectare controlled dumpsite located in Barangay Bonga, about 3.5 kilometers southeast of the City proper.  It has passed the DENR’s standards and is certified compliant with the Ecological Solid Waste Management Act.  The controlled dumpsite is planned for conversion into a sanitary landfill.

The LGU has three dump trucks that collect garbage and transport them to the controlled dumpsite.  The collection system mainly covers the urban and neighboring barangays.  Households in barangays that are not serviced by the City’s solid waste collection system burn their waste, bury them or simply dump them into waterways.  The CHO reported that 61.5 percent (10,465) of the City’s 17,031 households had satisfactory means of garbage disposal. 

 

Development Needs

Ligao should strive to improve its solid waste management system through a practical, workable and effective solid waste management plan where the city residents should participate to ensure its successful implementation.

  • On Future Expansion of Dumpsite

A number of measures can be instituted to prolong the service life of the current dumpsite in Barangay Bonga.  These include the following:

 

a. Minimization of the overall waste generation in the city;

b. Segregation of waste at the household level to recover possible materials thru reselling of recyclable materials or backyard composting;

c. Effective operation of the Materials Recovery Facility especially at the urban center and which can do effective bulk processing and resource recovery;

d. Effective site planning for the dumpsite as it is converted into sanitary landfill;

e. Effective operation with conscious efforts of to optimizeing the site through , appropriate site compaction of residual materials, and stabilization of previously dumpinged areas;

f. Structural measures such as construction of berms or embankments to allow for higher volume capacity. The berms or embankments should be properly engineered to carry surcharge and lateral loadings under extreme climatic conditions due to increase hydrostatic loading; and

g. Proper installation of leachate collection laterals and treatment system to prevent hydrologic buildup which may lead to collapse of retaining structure.

The above measures are predicated on effective community participation and support to the city’s solid waste management plan.

  • Site Selection Criteria for disposal  - Coastal and Mayon Units

The Environmental Management Bureau of the DENR has issued screening guidelines for the site selection of sanitary landfill facilities as embodied in DAO 98-50 (shown in the following table).

These guidelines shall be applied to probable sites to come up with an assessment of their physical acceptabilities.

Table 1.4 Screening Guidelines for Municipal Solid Waste Facilities as Mandated by DENR Administrative Order No. 98-50

Criteria

Screening Guidelines

Absolute

Conditional

1. Area Capacity and Availability

  • The site should be sufficient for a landfill with a target service life of not less that 5 years
  • The area should be sufficient for a landfill with a target service life of approximately 10 years (based on 206 ha/100,000 population, 0.5kg/ person/ day, 70 tons/m3 density & 10 m depth)

2. Haul Distance and Time

 

  • Avoid areas more than 15 to 20 kilometers or 30 minutes travel time from the waste generation centers (road and traffic conditions should be considered)

3. Proximity to sensitive Groundwater Resources

  • The site should not be located in or up gradient of shallow unconfined aquifers for drinking water supply
  • Avoid areas considered to be part of a 10-year recharge area for existing or future potable water sources and confined aquifers (deep wells) for drinking water supply.
  • Avoid areas 500 meters up gradient of private or public drinking, irrigation or livestock water supply wells.

4. Proximity to perennial Surface Waters

  • The site should not be located within 300 meters up gradient of any surface waters used for drinking purposes
  • Avoid areas within 300 meters up gradient of a perennial river or stream

5. Occurrence of Flooding

 

  • Avoid locating site in areas prone to flooding. Avoid salt, lakes, swamplands, and low lying coastal plains

6. Proximity to sensitive Land Users

  • The site should not be located in existing or proposed residential, commercial or urban development areas, and areas with archaeological cultural or historical importance.
  • Avoid Areas within 500 meters of any ecologically sensitive areas proclaimed by law
7.Topography   Avoid hilly areas with ground slopes greater than 20%

8. Local Ecological Conditions

  • The site should not be located within ecologically sensitive areas proclaimed by law as national parks, conservation parks, recreation parks, game reserves, sites of flora and fauna of national or regional significance, or wetlands of important biodiversity.
  • Avoid Areas within 500 meters of any ecological sensitive areas proclaimed by law

9. Current and Future Land Use

  • The site should not be located in areas with valuable mineral and energy resources, tourist destinations or across major transportation routes.
  • Avoid Areas classified as prime agricultural land and areas with major water, gas, electrical power or communication transmission infrastructure.

10. Proximity to Airports

  • The site should not be located within 3 kilometers of an airport servicing turbojet aircrafts or 1.6 kilometers of an airport servicing piston driven or turboprop aircraft
  • Permission should be sought from the ATO if the site is locates within 8 kilometers of the nearest airport.

For the coastal areas in Ligao City, criterion number 2 may be difficult to attain considering the distance and the difficulty of hauling materials to the site. Criteria 3 4, and 5 should be followed as the coastal areas may be prone to flooding and the groundwater level may be close to ground surface. For the probable sites in the Mayon Unit, criterion no. 7 (topography not greater than 20%) should be followed. Criterion 8 states further that probable sites should not be within ecologically sensitive areas such as national parks, conservation parks, etc. This item sh all be verified with relevant agencies on a per location basis. It is also noted that the city government shall direct the preparation of an environmental impact statement for the proposed site(s).  The EIS shall initially guide the conceptual design of the facilities and be the basis for the operational and monitoring requirements .

 Goal and Objectives

Goal

- To provide an efficient and environment-friendly solid waste management system that will encourage the reduction of solid waste and will facilitate the prompt and sanitary way of collecting and disposing garbage.

Objectives

  • To develop suitable locations for solid waste disposal facilit ies/sanitary landfills in the Mayon, Upland and Coastal Areas subject to DENR’s site selection criteria;
  • To come up with a suitable solid waste disposal facility and with operational procedures compliant to the requirements of RA 9003;
  • To promote recycling, reuse and composting to all the constituents of Ligao City in order to minimize the generation of solid waste; and
  • To promote livelihood and income generation schemes based on material recovery activities to those currently involved in solid waste activities.

 

Strategies

  • Promote recycling, reuse and composting in order to minimize the generation of solid waste;
  • Promote livelihood and income generation schemes based on materials recovery;
  • Coordinate with the DENR in locating suitable sites and conduct necessary studies; and
  • Improve the structural features, operation and maintenance of the current disposal facility/site in accordance with RA 9003.
 
Ligao City Development Partners