California Department of Resources Recycling and Recovery (CalRecycle) 

Local Government Central

Adjustment Method Formula (Text Version)

Note: This page contains historical data from CalRecycle’s statewide goal measurement prior to 2007 that estimated a diversion percentage. For 2007 and subsequent years, CalRecycle compares reported disposal tons to population to calculate per capita disposal expressed in pounds/person/day. This new goal measurement system is described in CalRecycle's Goal Measurement: 2007 and Later web page.

Calculations to Correct Base-Year Generation for Changes in Population and Economics, Disposal Tonnage, Goal Achievement, and Diversion

Calculation to Correct Base-Year Generation for Changes in Population and Economics

  1. Inflation Multiplier = Base-Year inflation / Reporting Year inflation
  2. Report-Year Taxable Sales (inflation adjusted) = Inflation Multiplier x Reporting-Year Taxable Sales
  3. Taxable Sales Multiplier = Reporting-Year Taxable Sales (Corrected) / Base-Year Taxable Sales
  4. Employment Multiplier = Report-Year Employment / Base-Year Employment
  5. Nonresidential Adjustment = (Employment Multiplier +Taxable Sales Multiplier) / 2
  6. Population Multiplier = Reporting-Year Population / Base-Year Population
  7. Residential Adjustment Factor = (Population Multiplier + Non-Residential Adjustment Factor) /2
  8. Estimated Reporting-Year Generation Tonnage = [(Base-Year Residential Generation x Residential Adjustment Factor) + (Base-Year Nonresidential Generation x Non-Residential Adjustment Factor)]

Computed Maximum Allowable Disposal Tonnage

  1. Reporting-Year Maximum Allowable Disposal Percentage = 100 – Diversion Goal
  2. Reporting-Year Maximum Allowable Disposal Tonnage = Estimated Reporting-Year Generation Tonnage x Reporting-Year Maximum Allowable Disposal Percentage

Determination of Goal Achievement

  1. Corrected Reporting-Year Disposal Tonnage = Reporting-Year Disposal Amount – Total Reporting-Year Correction Amount
  2. Tonnage Over or Under Goal = Reporting-Year Maximum Allowable Disposal Tonnage – Corrected Reporting-Year Disposal Tonnage

Calculated Diversion Rate

  1. Reporting-Year Disposal Rate = Corrected Reporting-Year Disposal Tonnage / Estimated Reporting-Year Generation Tonnage
  2. Reporting-Year Diversion Rate = 100 – Reporting-Year Disposal Rate

Diversion Rate Measurement Home Page

Last updated: December 23, 2011
Local Government Central http://www.calrecycle.ca.gov/LGCentral/ 
Local Assistance & Market Development: LAMD@calrecycle.ca.gov (916) 341-6199