Waste Acceptance Policy

Waste Acceptance Policy

The WPWMA owns and operates the Western Regional Sanitary Landfill (WRSL) on their campus. While the WRSL is typically where items from residential and business garbage (municipal solid waste or MSW) that are not able to be recycled are disposed of, it can also be used to dispose of special wastes. 

The WRSL waste acceptance policy defines the requirements for disposing of various wastes at the facility. Currently, the WRSL accepts only municipal solid waste (MSW) and other special wastes not deemed as hazardous wastes or as designated wastes (non-hazardous waste is considered a potential environmental contaminate, requiring special handling).

A large truck dumps mixed refuse at the waste facility.

The waste acceptance policy discusses the special wastes that the WRSL will accept and sets forth the conditions under which these special wastes may be accepted. Types of waste discussed in the policy include:

  • Designated Wastes
  • Dewatered, Treated
  • Sludge
  • Septic Pond
  • Sludge/Non-Treated
  • Sewage Sludge
  • Soils
  • Railroad Ties/Treated
  • Wood
  • Tire
  • Medical Wastes
  • Dead Animals
  • Other Special Wastes
  • Asbestos
  • Ash
  • Prohibited Wastes

Before special wastes can be accepted at the WRSL, the generator must provide documentation showing that the waste meets minimum acceptance standards.

Sludge Acceptance Policy

The WPWMA must mix sludge with other landfill waste and immediately bury it to mitigate odor migration potential and ensure that the landfill is seismically stable as constructed. The WRSL permits mandate that the solid-to-liquid ratio must remain above 5:1 in the disposed waste, with delivered sludge included. For these reasons, sludge is accepted only on a scheduled basis, typically between the hours of 7 a.m. and 2 p.m., Monday through Friday, excluding the holidays of Thanksgiving Day, Christmas Day, and New Year’s Day. 

The WPWMA temporary policy on acceptance of sludge outlines the conditions under which it will accept sludge at the WRSL. Please review this policy before scheduling a sludge delivery.

To schedule a sludge delivery, please contact the WPWMA at info@wpwma.ca.gov or (916) 543-3960. The landfill operator may reject non-scheduled sludge deliveries if, due to timing, the material cannot be disposed of in accordance with the unique handling requirements noted above.