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TABLE 1
<br /> 30-year Cost Estimate: Site Operations and Maintenance
<br /> Former Manufactured Gas Plant Site
<br /> Stockton, California
<br /> Task 1 Task 2 Task 3 Task 4 Task 5 Estimated DTSC' Oversight Actual Cummulative
<br /> Costs NPV
<br /> Annual
<br /> Annual Biennial Cap/Deed Monitoring Cap/Deed
<br /> 30-year Groundwater < Report Restrictions 5-year Estimated Annual
<br /> Costing MNA Restrictions Estimated Cap 5-year y
<br /> Schedule Monitoring & Sampling & Inspection Maintenance Review Review Inspection Review Total Cost Discount
<br /> Reporting' Evaluation and (Tasks 1 Review (Task 5) by Year Rate: 7% •
<br /> Reporting' and 2) (Task 3)
<br /> 2005 $22,300 $3,600 $200 $2,200 $400 $28,700 $28,700
<br /> 2006 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $58,980
<br /> 2007 $22,300 $3,600 $200 $2,200 $400 $28,700 $84,048
<br /> 2008 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $110,496
<br /> 2009 $22,300 $3,600 $10,000 $5,000 $2,200 $400 $500 $44,000 $144,064
<br /> 2010 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $167,164
<br /> 2011 $22,300 $3,600 $200 $2,200 $400 $28,700 $186,288
<br /> 2012 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $206,465
<br /> 2013 $22,300 $3,600 $200 $2,200 $400 $28,700 $223,169
<br /> 2014 $22,300 $3,300 $3,600 $30,000 $5,000 $2,600 $400 $500 $67,700 $259,993
<br /> 2015 $22,300 $3,600 $200 $2,200 $400 $28,700 $274,583
<br /> 2016 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $289,976
<br /> 2017 $22,300 $3,600 $200 $21200 $400 $28,700 $302,719
<br /> 2018 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $316,164
<br /> 2020 $22,300 $3,300
<br /> 2019 $22,300 $3,600 $10,000 $5,000 $2,200 $400 $500 $44,000 $333,228 •
<br /> $3,600 $200 $2,600 $400 $32,400 $344,971
<br /> 2021 $22,300 $3,600 $200 $2,200 $400 $28,700 $354,693
<br /> 2022 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $364,950
<br /> 2023 $22,300 $3,600 $200 $2,200 $400 $28,700 $373,441
<br /> 2024 $22,300 $3,300 $3,600 $10,000 $5,000 $2,600 $400 $500 $47,700 $386,631
<br /> 2025 $22,300 $3,600 $200 $2,200 $400 $28,700 $394,047
<br /> 2026 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $401,872
<br /> 2027 $22,300 $3,600 $200 $2,200 $400 $28,700 $408,350
<br /> 2028 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $415,185
<br /> 2029 $22,300 $3,600 $30,000 $5,000 $2,200 $400 $500 $64,000 $427,802
<br /> 2030 $22,300 $3,300 $3,600 $200 $2,600 $400 $32,400 $433,772
<br /> EN r+.+*✓
<br /> A m t'� Page 1 of 2 P:1PG&E\Stockton\Correspondence\30-Year Cost Estimate Jan2005 final
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