2020  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2021  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2022  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2023  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2024  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2025  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2026  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2027  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

Total 301.8 $ 263.3 $ 340.4 $ 4.9 $ 4.2 $ 5.6 $ 186.0 $ 163.6 $ 208.3 $ 8.9 $ 7.7 $ 10.0 $ 501.5 $ 438.7 $ 564.3 $

Ann. 25.9 $ 22.6 $ 29.2 $ 0.4 $ 0.4 $ 0.5 $ 16.0 $ 14.0 $ 17.9 $ 0.8 $ 0.7 $ 0.9 $ 43.0 $ 37.6 $ 48.4 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 6a through K. 6h. Detail may not add exactly to totals due to independent rounding. Mean Value 90 Percent Confidence Bound Present values in millions of 2000 dollars. Estimates are discounted to 2003. Mean Value 90 Percent Confidence Bound Disinfecting Ground Water NTNCWS Total Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Mean Value Surface Water CWS Surface Water NTNCWS Disinfecting Ground Water CWS 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 6o Present Value of Annual O& M Treatment Cost Projections at 7% Discount Rate ( All Systems)

IDSE Sensitivity Analysis 1 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2004  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2005 2.9 $ 2.7 $ 3.1 $ 0.1 $ 0.1 $ 0.1 $ 2.9 $ 2.7 $ 3.1 $ 0.1 $ 0.1 $ 0.1 $ 6.0 $ 5.6 $ 6.4 $

2006 5.4 $ 5.0 $ 5.8 $ 0.2 $ 0.2 $ 0.2 $ 5.5 $ 5.1 $ 5.8 $ 0.2 $ 0.2 $ 0.3 $ 11.3 $ 10.6 $ 12.0 $

2007 7.6 $ 7.1 $ 8.1 $ 0.2 $ 0.2 $ 0.3 $ 7.7 $ 7.2 $ 8.2 $ 0.3 $ 0.3 $ 0.4 $ 15.8 $ 14.8 $ 16.8 $

2008 9.4 $ 8.8 $ 10.0 $ 0.3 $ 0.3 $ 0.3 $ 9.6 $ 9.0 $ 10.2 $ 0.4 $ 0.4 $ 0.4 $ 19.7 $ 18.4 $ 21.0 $

2009 11.0 $ 10.3 $ 11.7 $ 0.4 $ 0.3 $ 0.4 $ 11.2 $ 10.5 $ 11.9 $ 0.5 $ 0.4 $ 0.5 $ 23.0 $ 21.5 $ 24.5 $

2010 12.4 $ 11.6 $ 13.2 $ 0.4 $ 0.4 $ 0.4 $ 12.5 $ 11.7 $ 13.3 $ 0.5 $ 0.5 $ 0.6 $ 25.8 $ 24.2 $ 27.5 $

2011 12.1 $ 11.3 $ 12.9 $ 0.4 $ 0.4 $ 0.5 $ 12.2 $ 11.5 $ 13.0 $ 0.6 $ 0.5 $ 0.6 $ 25.3 $ 23.7 $ 27.0 $

2012 11.8 $ 11.0 $ 12.6 $ 0.5 $ 0.4 $ 0.5 $ 11.9 $ 11.2 $ 12.7 $ 0.6 $ 0.6 $ 0.7 $ 24.8 $ 23.2 $ 26.4 $

2013 11.5 $ 10.8 $ 12.3 $ 0.5 $ 0.4 $ 0.5 $ 11.6 $ 10.9 $ 12.3 $ 0.6 $ 0.6 $ 0.7 $ 24.3 $ 22.7 $ 25.8 $

2014 10.8 $ 10.1 $ 11.5 $ 0.4 $ 0.4 $ 0.5 $ 10.9 $ 10.2 $ 11.5 $ 0.6 $ 0.5 $ 0.7 $ 22.7 $ 21.2 $ 24.2 $

2015 10.1 $ 9.4 $ 10.7 $ 0.4 $ 0.4 $ 0.4 $ 10.1 $ 9.5 $ 10.8 $ 0.6 $ 0.5 $ 0.6 $ 21.2 $ 19.8 $ 22.6 $

2016 9.4 $ 8.8 $ 10.0 $ 0.4 $ 0.4 $ 0.4 $ 9.5 $ 8.9 $ 10.1 $ 0.5 $ 0.5 $ 0.6 $ 19.8 $ 18.5 $ 21.1 $

2017 8.8 $ 8.2 $ 9.4 $ 0.4 $ 0.3 $ 0.4 $ 8.9 $ 8.3 $ 9.4 $ 0.5 $ 0.4 $ 0.5 $ 18.5 $ 17.3 $ 19.7 $

2018 8.2 $ 7.7 $ 8.8 $ 0.3 $ 0.3 $ 0.4 $ 8.3 $ 7.8 $ 8.8 $ 0.5 $ 0.4 $ 0.5 $ 17.3 $ 16.2 $ 18.4 $

2019 7.7 $ 7.2 $ 8.2 $ 0.3 $ 0.3 $ 0.3 $ 7.7 $ 7.2 $ 8.2 $ 0.4 $ 0.4 $ 0.5 $ 16.2 $ 15.1 $ 17.2 $

2020 7.2 $ 6.7 $ 7.6 $ 0.3 $ 0.3 $ 0.3 $ 7.2 $ 6.8 $ 7.7 $ 0.4 $ 0.4 $ 0.4 $ 15.1 $ 14.1 $ 16.1 $

2021 6.7 $ 6.3 $ 7.1 $ 0.3 $ 0.3 $ 0.3 $ 6.8 $ 6.3 $ 7.2 $ 0.4 $ 0.3 $ 0.4 $ 14.1 $ 13.2 $ 15.0 $

2022 6.3 $ 5.9 $ 6.7 $ 0.3 $ 0.2 $ 0.3 $ 6.3 $ 5.9 $ 6.7 $ 0.4 $ 0.3 $ 0.4 $ 13.2 $ 12.3 $ 14.1 $

2023 5.9 $ 5.5 $ 6.2 $ 0.2 $ 0.2 $ 0.3 $ 5.9 $ 5.5 $ 6.3 $ 0.3 $ 0.3 $ 0.4 $ 12.3 $ 11.5 $ 13.1 $

2024 5.5 $ 5.1 $ 5.8 $ 0.2 $ 0.2 $ 0.2 $ 5.5 $ 5.2 $ 5.9 $ 0.3 $ 0.3 $ 0.3 $ 11.5 $ 10.8 $ 12.3 $

2025 5.1 $ 4.8 $ 5.5 $ 0.2 $ 0.2 $ 0.2 $ 5.2 $ 4.8 $ 5.5 $ 0.3 $ 0.3 $ 0.3 $ 10.8 $ 10.1 $ 11.5 $

2026 4.8 $ 4.5 $ 5.1 $ 0.2 $ 0.2 $ 0.2 $ 4.8 $ 4.5 $ 5.1 $ 0.3 $ 0.2 $ 0.3 $ 10.1 $ 9.4 $ 10.7 $

2027 4.5 $ 4.2 $ 4.8 $ 0.2 $ 0.2 $ 0.2 $ 4.5 $ 4.2 $ 4.8 $ 0.3 $ 0.2 $ 0.3 $ 9.4 $ 8.8 $ 10.0 $

Total 184.9 $ 172.8 $ 197.0 $ 7.2 $ 6.7 $ 7.7 $ 186.6 $ 174.9 $ 198.4 $ 9.6 $ 8.7 $ 10.5 $ 388.3 $ 363.0 $ 413.5 $

Ann. 15.9 $ 14.8 $ 16.9 $ 0.6 $ 0.6 $ 0.7 $ 16.0 $ 15.0 $ 17.0 $ 0.8 $ 0.7 $ 0.9 $ 33.3 $ 31.2 $ 35.5 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 6a through K. 6h. Surface Water CWS Surface Water NTNCWS Disinfecting Ground Water CWS Disinfecting Ground Water NTNCWS Total Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Detail may not add exactly to totals due to independent rounding. Mean Value 90 Percent Confidence Bound Present values in millions of 2000 dollars. Estimates are discounted to 2003.

Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 6p Present Value of Annual Non Treatment Cost Projections at 7% Discount Rate ( All Systems) IDSE Sensitivity Analysis 1 2003 0.8 $ 29.5 $  $  $ 0.0 $ 0.1 $  $  $ 0.1 $ 1.3 $  $  $ 0.0 $ 0.0 $  $  $ 0.9 $ 30.8 $  $  $

2004  $ 27.6 $  $  $  $ 0.1 $  $  $  $ 1.2 $  $  $  $ 0.0 $  $  $  $ 28.8 $  $  $

2005 0.2 $  $  $  $ 0.0 $  $  $  $ 1.8 $  $  $  $ 0.4 $  $  $  $ 2.4 $  $  $  $

2006 0.6 $ 3.0 $  $  $ 0.0 $  $  $  $ 0.1 $ 3.3 $  $  $ 0.0 $ 0.0 $  $  $ 0.7 $ 6.3 $  $  $

2007  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2008 0.1 $  $  $ 0.0 $ 0.0 $  $  $  $ 1.4 $  $  $  $ 0.3 $  $  $  $ 1.9 $  $  $ 0.0 $

2009  $  $ ( 1.0) $ 0.0 $  $  $ 0.0 $  $  $  $ 0.8 $  $  $  $ 0.0 $  $  $  $ ( 0.2) $ 0.0 $

2010  $  $ ( 1.4) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.1 $  $  $  $ 0.0 $  $  $  $ 0.8 $ 0.0 $

2011  $  $ ( 0.7) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.5 $  $  $  $ 0.0 $  $  $  $ 1.8 $ 0.0 $

2012  $  $ ( 0.7) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.3 $  $  $  $ 0.0 $  $  $  $ 1.7 $ 0.0 $

2013  $  $ ( 0.6) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.2 $  $  $  $ 0.0 $  $  $  $ 1.6 $ 0.0 $

2014  $  $ ( 0.6) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.0 $  $  $  $ 0.0 $  $  $  $ 1.5 $ 0.0 $

2015  $  $ ( 0.6) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.9 $  $  $  $ 0.0 $  $  $  $ 1.4 $ 0.0 $

2016  $  $ ( 0.5) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.8 $  $  $  $ 0.0 $  $  $  $ 1.3 $ 0.0 $

2017  $  $ ( 0.5) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.7 $  $  $  $ 0.0 $  $  $  $ 1.2 $ 0.0 $

2018  $  $ ( 0.5) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.5 $  $  $  $ 0.0 $  $  $  $ 1.1 $ 0.0 $

2019  $  $ ( 0.4) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.4 $  $  $  $ 0.0 $  $  $  $ 1.0 $ 0.0 $

2020  $  $ ( 0.4) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.4 $  $  $  $ 0.0 $  $  $  $ 1.0 $ 0.0 $

2021  $  $ ( 0.4) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.3 $  $  $  $ 0.0 $  $  $  $ 0.9 $ 0.0 $

2022  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.2 $  $  $  $ 0.0 $  $  $  $ 0.8 $ 0.0 $

2023  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.1 $  $  $  $ 0.0 $  $  $  $ 0.8 $ 0.0 $

2024  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.0 $  $  $  $ 0.0 $  $  $  $ 0.7 $ 0.0 $

2025  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.0 $  $  $  $ 0.0 $  $  $  $ 0.7 $ 0.0 $

2026  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 0.9 $  $  $  $ 0.0 $  $  $  $ 0.6 $ 0.0 $

2027  $  $ ( 0.2) $ 0.0 $  $  $ 0.0 $  $  $  $ 0.8 $  $  $  $ 0.0 $  $  $  $ 0.6 $ 0.0 $

Total 1.7 $ 60.0 $ ( 10.0) $ 0.1 $ 0.1 $ 0.2 $ 0.2 $  $ 3.4 $ 5.7 $ 28.9 $  $ 0.7 $ 0.0 $ 0.0 $  $ 6.0 $ 65.9 $ 19.1 $ 0.1 $

Ann. 0.1 $ 5.1 $ ( 0.9) $ 0.0 $ 0.0 $ 0.0 $ 0.0 $  $ 0.3 $ 0.5 $ 2.5 $  $ 0.1 $ 0.0 $ 0.0 $  $ 0.5 $ 5.7 $ 1.6 $ 0.0 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 6a through K. 6h.. Surface Water CWS Surface Water NTNCWS Disinfecting Ground Water CWS Monitoring Siginificant Monitoring Siginificant Monitoring Disinfecting Ground Water NTNCWS Total Implementation IDSE Implementation IDSE Implementation IDSE Monitoring Siginificant Detail may not add exactly to totals due to independent rounding. Implementation IDSE Present values in millions of 2000 dollars. Estimates are discounted to 2003. Implementation IDSE Siginificant Monitoring Siginificant Economic Analysis for the Stage 2 DBPR Proposal July 2003 Section K. 7 Cost Projections ( IDSE Sensitivity Analysis 2)

Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7a Projections of Stage 2 DBPR PWS Costs ( All Surface Water CWSs)

IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Monitoring Significant Excursion Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $ 0.79 $ 29.49 $  $  $ 30.28 $ 30.28 $ 30.28 $

2004  $  $  $  $  $  $  $ 29.49 $  $  $ 29.49 $ 29.49 $ 29.49 $

2005 113.06 $ 101.87 $ 124.38 $ 5.58 $ 5.31 $ 5.86 $ 0.18 $  $  $  $ 118.83 $ 107.35 $ 130.42 $

2006 113.06 $ 101.87 $ 124.38 $ 11.17 $ 10.61 $ 11.73 $ 0.79 $ 3.63 $  $  $ 128.65 $ 116.90 $ 140.52 $

2007 113.06 $ 101.87 $ 124.38 $ 16.75 $ 15.92 $ 17.59 $  $  $  $  $ 129.81 $ 117.79 $ 141.97 $

2008 113.06 $ 101.87 $ 124.38 $ 22.33 $ 21.22 $ 23.45 $ 0.18 $  $  $ 0.01 $ 135.58 $ 123.28 $ 148.02 $

2009 113.06 $ 101.87 $ 124.38 $ 27.92 $ 26.53 $ 29.31 $  $  $ ( 1.56) $ 0.02 $ 139.43 $ 126.85 $ 152.15 $

2010 113.06 $ 101.87 $ 124.38 $ 33.50 $ 31.83 $ 35.18 $  $  $ ( 2.18) $ 0.02 $ 144.40 $ 131.54 $ 157.39 $

2011 12.19 $ 10.93 $ 13.47 $ 34.98 $ 33.24 $ 36.74 $  $  $ ( 1.24) $ 0.02 $ 45.95 $ 42.95 $ 48.99 $

2012 12.19 $ 10.93 $ 13.47 $ 36.47 $ 34.65 $ 38.30 $  $  $ ( 1.24) $ 0.02 $ 47.44 $ 44.36 $ 50.55 $

2013 12.19 $ 10.93 $ 13.47 $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 48.92 $ 45.76 $ 52.11 $

2014  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2015  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2016  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2017  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2018  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2019  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2020  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2021  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2022  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2023  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2024  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2025  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2026  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

2027  $  $  $ 37.95 $ 36.05 $ 39.86 $  $  $ ( 1.24) $ 0.02 $ 36.73 $ 34.83 $ 38.64 $

Note: All values in millions of year 2000 dollars.

Source: Derived from Exhibits K. 1f and K. 1g and from Appendix D, Exhibits D. 1 through D. 7. Treatment Capital Costs Year Mean Value 90 Percent Confidence Bound All Stage 2 DBPR Costs Mean Value 90 Percent Confidence Bound Non Treatment Costs Implementation IDSE Treatment O& M Costs Mean Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7b Projections of Stage 2 DBPR PWS Costs ( All Surface Water NTNCWSs)

IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Monitoring Significant Excursion Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $ 0.02 $ 0.09 $  $  $ 0.10 $ 0.10 $ 0.10 $

2004  $  $  $  $  $  $  $ 0.09 $  $  $ 0.09 $ 0.09 $ 0.09 $

2005 1.48 $ 1.33 $ 1.63 $ 0.17 $ 0.16 $ 0.18 $ 0.04 $  $  $  $ 1.69 $ 1.53 $ 1.85 $

2006 1.48 $ 1.33 $ 1.63 $ 0.34 $ 0.32 $ 0.36 $ 0.02 $  $  $  $ 1.84 $ 1.67 $ 2.01 $

2007 1.48 $ 1.33 $ 1.63 $ 0.51 $ 0.48 $ 0.54 $  $  $  $  $ 1.99 $ 1.81 $ 2.17 $

2008 1.48 $ 1.33 $ 1.63 $ 0.68 $ 0.64 $ 0.71 $ 0.04 $  $  $  $ 2.20 $ 2.01 $ 2.39 $

2009 1.48 $ 1.33 $ 1.63 $ 0.85 $ 0.80 $ 0.89 $  $  $ 0.01 $  $ 2.34 $ 2.14 $ 2.54 $

2010 1.48 $ 1.33 $ 1.63 $ 1.02 $ 0.96 $ 1.07 $  $  $ 0.02 $  $ 2.52 $ 2.31 $ 2.73 $

2011 1.09 $ 0.97 $ 1.20 $ 1.17 $ 1.11 $ 1.23 $  $  $ 0.03 $  $ 2.28 $ 2.11 $ 2.46 $

2012 1.09 $ 0.97 $ 1.20 $ 1.32 $ 1.25 $ 1.40 $  $  $ 0.03 $  $ 2.44 $ 2.25 $ 2.62 $

2013 1.09 $ 0.97 $ 1.20 $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 2.59 $ 2.40 $ 2.78 $

2014  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2015  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2016  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2017  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2018  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2019  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2020  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2021  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2022  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2023  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2024  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2025  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2026  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

2027  $  $  $ 1.48 $ 1.40 $ 1.56 $  $  $ 0.03 $  $ 1.50 $ 1.43 $ 1.58 $

Note: All values in millions of year 2000 dollars.

Source: All Stage 2 DBPR Costs Mean Value 90 Percent Confidence Bound Non Treatment Costs Implementation IDSE Treatment O& M Costs Mean Value 90 Percent Confidence Bound Derived from Exhibits K. 1f and K. 1g and from Appendix D, Exhibits D. 1 through D. 7. Year Treatment Capital Costs Mean Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7c Projections of Stage 2 DBPR PWS Costs ( All Surface Water Systems)

IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Monitoring Significant Excursion Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $ 0.80 $ 29.58 $  $  $ 30.38 $ 30.38 $ 30.38 $

2004  $  $  $  $  $  $  $ 29.58 $  $  $ 29.58 $ 29.58 $ 29.58 $

2005 114.55 $ 103.20 $ 126.01 $ 5.75 $ 5.47 $ 6.04 $ 0.22 $  $  $  $ 120.52 $ 108.88 $ 132.27 $

2006 114.55 $ 103.20 $ 126.01 $ 11.51 $ 10.93 $ 12.08 $ 0.80 $ 3.63 $  $  $ 130.49 $ 118.57 $ 142.53 $

2007 114.55 $ 103.20 $ 126.01 $ 17.26 $ 16.40 $ 18.12 $  $  $  $  $ 131.80 $ 119.60 $ 144.14 $

2008 114.55 $ 103.20 $ 126.01 $ 23.01 $ 21.86 $ 24.16 $ 0.22 $  $  $ 0.01 $ 137.78 $ 125.29 $ 150.40 $

2009 114.55 $ 103.20 $ 126.01 $ 28.76 $ 27.33 $ 30.20 $  $  $ ( 1.55) $ 0.02 $ 141.77 $ 128.99 $ 154.68 $

2010 114.55 $ 103.20 $ 126.01 $ 34.52 $ 32.80 $ 36.25 $  $  $ ( 2.16) $ 0.02 $ 146.92 $ 133.85 $ 160.11 $

2011 13.28 $ 11.91 $ 14.67 $ 36.16 $ 34.35 $ 37.97 $  $  $ ( 1.22) $ 0.02 $ 48.23 $ 45.06 $ 51.44 $

2012 13.28 $ 11.91 $ 14.67 $ 37.79 $ 35.90 $ 39.70 $  $  $ ( 1.22) $ 0.02 $ 49.87 $ 46.61 $ 53.17 $

2013 13.28 $ 11.91 $ 14.67 $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 51.51 $ 48.16 $ 54.89 $

2014  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2015  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2016  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2017  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2018  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2019  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2020  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2021  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2022  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2023  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2024  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2025  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2026  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

2027  $  $  $ 39.43 $ 37.45 $ 41.42 $  $  $ ( 1.22) $ 0.02 $ 38.23 $ 36.25 $ 40.22 $

Note: All values in millions of year 2000 dollars.

Source: Mean Value 90 Percent Confidence Bound All Stage 2 DBPR Costs Non Treatment Costs Implementation IDSE Treatment O& M Costs Mean Value 90 Percent Confidence Bound Derived from Exhibits K. 1f and K. 1g and from Appendix D, Exhibits D. 1 through D. 7. Year Treatment Capital Costs Mean Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7d Projections of Stage 2 DBPR PWS Costs ( All Ground Water CWSs)

IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Monitoring Significant Excursion Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $ 0.10 $ 1.27 $  $  $ 1.37 $ 1.37 $ 1.37 $

2004  $  $  $  $  $  $  $ 1.27 $  $  $ 1.27 $ 1.27 $ 1.27 $

2005 41.05 $ 36.33 $ 45.77 $ 3.67 $ 3.45 $ 3.90 $ 2.03 $  $  $  $ 46.75 $ 41.80 $ 51.70 $

2006 41.05 $ 36.33 $ 45.77 $ 7.34 $ 6.89 $ 7.80 $ 0.10 $ 4.04 $  $  $ 52.53 $ 47.36 $ 57.71 $

2007 41.05 $ 36.33 $ 45.77 $ 11.01 $ 10.34 $ 11.70 $  $  $  $  $ 52.06 $ 46.66 $ 57.47 $

2008 41.05 $ 36.33 $ 45.77 $ 14.68 $ 13.78 $ 15.59 $ 2.03 $  $  $  $ 57.76 $ 52.14 $ 63.40 $

2009 41.05 $ 36.33 $ 45.77 $ 18.35 $ 17.23 $ 19.49 $  $  $ 1.23 $  $ 60.63 $ 54.78 $ 66.49 $

2010 41.05 $ 36.33 $ 45.77 $ 22.02 $ 20.67 $ 23.39 $  $  $ 3.36 $  $ 66.43 $ 60.36 $ 72.53 $

2011 11.48 $ 9.72 $ 13.23 $ 22.95 $ 21.54 $ 24.38 $  $  $ 4.27 $  $ 38.70 $ 35.52 $ 41.88 $

2012 11.48 $ 9.72 $ 13.23 $ 23.88 $ 22.40 $ 25.38 $  $  $ 4.27 $  $ 39.63 $ 36.39 $ 42.88 $

2013 11.48 $ 9.72 $ 13.23 $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 40.56 $ 37.25 $ 43.87 $

2014  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2015  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2016  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2017  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2018  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2019  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2020  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2021  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2022  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2023  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2024  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2025  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2026  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

2027  $  $  $ 24.81 $ 23.26 $ 26.37 $  $  $ 4.27 $  $ 29.08 $ 27.53 $ 30.64 $

Note: All values in millions of year 2000 dollars.

Source: All Stage 2 DBPR Costs Mean Value 90 Percent Confidence Bound Non Treatment Costs Implementation IDSE Treatment O& M Costs Mean Value 90 Percent Confidence Bound Derived from Exhibits K. 1f and K. 1g and from Appendix D, Exhibits D. 1 through D. 7. Year Treatment Capital Costs Mean Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7e Projections of Stage 2 DBPR PWS Costs ( All Ground Water NTNCWSs)

IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Monitoring Significant Excursion Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $ 0.00 $ 0.00 $  $  $ 0.00 $ 0.00 $ 0.00 $

2004  $  $  $  $  $  $  $ 0.00 $  $  $ 0.00 $ 0.00 $ 0.00 $

2005 1.55 $ 1.35 $ 1.75 $ 0.15 $ 0.13 $ 0.16 $ 0.47 $  $  $  $ 2.17 $ 1.95 $ 2.38 $

2006 1.55 $ 1.35 $ 1.75 $ 0.30 $ 0.27 $ 0.33 $ 0.00 $ 0.00 $  $  $ 1.85 $ 1.61 $ 2.08 $

2007 1.55 $ 1.35 $ 1.75 $ 0.45 $ 0.40 $ 0.49 $  $  $  $  $ 2.00 $ 1.75 $ 2.24 $

2008 1.55 $ 1.35 $ 1.75 $ 0.60 $ 0.53 $ 0.65 $ 0.47 $  $  $  $ 2.61 $ 2.35 $ 2.87 $

2009 1.55 $ 1.35 $ 1.75 $ 0.74 $ 0.67 $ 0.81 $  $  $ 0.00 $  $ 2.30 $ 2.02 $ 2.57 $

2010 1.55 $ 1.35 $ 1.75 $ 0.89 $ 0.80 $ 0.98 $  $  $ 0.00 $  $ 2.45 $ 2.15 $ 2.73 $

2011 1.47 $ 1.28 $ 1.67 $ 1.04 $ 0.93 $ 1.13 $  $  $ 0.01 $  $ 2.52 $ 2.21 $ 2.81 $

2012 1.47 $ 1.28 $ 1.67 $ 1.18 $ 1.06 $ 1.29 $  $  $ 0.01 $  $ 2.66 $ 2.34 $ 2.96 $

2013 1.47 $ 1.28 $ 1.67 $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 2.80 $ 2.47 $ 3.12 $

2014  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2015  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2016  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2017  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2018  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2019  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2020  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2021  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2022  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2023  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2024  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2025  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2026  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

2027  $  $  $ 1.32 $ 1.18 $ 1.44 $  $  $ 0.01 $  $ 1.32 $ 1.19 $ 1.45 $

Note: All values in millions of year 2000 dollars.

Source: All Stage 2 DBPR Costs Mean Value 90 Percent Confidence Bound Non Treatment Costs Implementation IDSE Treatment O& M Costs Mean Value 90 Percent Confidence Bound Derived from Exhibits K. 1f and K. 1g and from Appendix D, Exhibits D. 1 through D. 7. Year Treatment Capital Costs Mean Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7f Projections of Stage 2 DBPR PWS Costs ( All Ground Water Systems)

IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Monitoring Siginificant Excursion Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $ 0.10 $ 1.27 $  $  $ 1.37 $ 1.37 $ 1.37 $

2004  $  $  $  $  $  $  $ 1.27 $  $  $ 1.27 $ 1.27 $ 1.27 $

2005 42.60 $ 37.67 $ 47.53 $ 3.82 $ 3.58 $ 4.06 $ 2.50 $  $  $  $ 48.92 $ 43.75 $ 54.08 $

2006 42.60 $ 37.67 $ 47.53 $ 7.64 $ 7.16 $ 8.12 $ 0.10 $ 4.04 $  $  $ 54.38 $ 48.97 $ 59.79 $

2007 42.60 $ 37.67 $ 47.53 $ 11.46 $ 10.74 $ 12.18 $  $  $  $  $ 54.06 $ 48.41 $ 59.71 $

2008 42.60 $ 37.67 $ 47.53 $ 15.28 $ 14.32 $ 16.24 $ 2.50 $  $  $  $ 60.37 $ 54.49 $ 66.27 $

2009 42.60 $ 37.67 $ 47.53 $ 19.10 $ 17.90 $ 20.31 $  $  $ 1.23 $  $ 62.93 $ 56.80 $ 69.06 $

2010 42.60 $ 37.67 $ 47.53 $ 22.92 $ 21.47 $ 24.37 $  $  $ 3.37 $  $ 68.88 $ 62.52 $ 75.26 $

2011 12.96 $ 11.00 $ 14.90 $ 23.98 $ 22.46 $ 25.52 $  $  $ 4.28 $  $ 41.22 $ 37.74 $ 44.69 $

2012 12.96 $ 11.00 $ 14.90 $ 25.05 $ 23.45 $ 26.66 $  $  $ 4.28 $  $ 42.29 $ 38.73 $ 45.84 $

2013 12.96 $ 11.00 $ 14.90 $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 43.36 $ 39.72 $ 46.99 $

2014  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2015  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2016  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2017  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2018  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2019  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2020  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2021  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2022  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2023  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2024  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2025  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2026  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

2027  $  $  $ 26.12 $ 24.44 $ 27.81 $  $  $ 4.28 $  $ 30.40 $ 28.72 $ 32.09 $

Note: All values in millions of year 2000 dollars.

Source: Derived from Exhibits K. 1f and K. 1g and from Appendix D, Exhibits D. 1 through D. 7. All Stage 2 DBPR Costs Mean Value 90 Percent Confidence Bound Treatment O& M Costs Mean Value 90 Percent Confidence Bound Non Treatment Costs Implementation IDSE Year Treatment Capital Costs Mean Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7g Projections of Stage 2 DBPR PWS Costs ( All Systems)

IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $ 0.91 $ 30.84 $  $  $ 31.75 $ 31.75 $ 31.75 $

2004  $  $  $  $  $  $  $ 30.84 $  $  $ 30.84 $ 30.84 $ 30.84 $

2005 157.15 $ 140.87 $ 173.54 $ 9.57 $ 9.05 $ 10.10 $ 2.71 $  $  $  $ 169.43 $ 152.63 $ 186.36 $

2006 157.15 $ 140.87 $ 173.54 $ 19.14 $ 18.09 $ 20.20 $ 0.91 $ 7.67 $  $  $ 184.87 $ 167.54 $ 202.32 $

2007 157.15 $ 140.87 $ 173.54 $ 28.72 $ 27.14 $ 30.31 $  $  $  $  $ 185.86 $ 168.01 $ 203.85 $

2008 157.15 $ 140.87 $ 173.54 $ 38.29 $ 36.18 $ 40.41 $ 2.71 $  $  $ 0.01 $ 198.16 $ 179.77 $ 216.67 $

2009 157.15 $ 140.87 $ 173.54 $ 47.86 $ 45.23 $ 50.51 $  $  $ ( 0.32) $ 0.02 $ 204.70 $ 185.79 $ 223.74 $

2010 157.15 $ 140.87 $ 173.54 $ 57.43 $ 54.27 $ 60.61 $  $  $ 1.21 $ 0.02 $ 215.80 $ 196.37 $ 235.38 $

2011 26.24 $ 22.90 $ 29.57 $ 60.14 $ 56.81 $ 63.49 $  $  $ 3.06 $ 0.02 $ 89.45 $ 82.79 $ 96.13 $

2012 26.24 $ 22.90 $ 29.57 $ 62.85 $ 59.35 $ 66.36 $  $  $ 3.06 $ 0.02 $ 92.16 $ 85.33 $ 99.01 $

2013 26.24 $ 22.90 $ 29.57 $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 94.87 $ 87.88 $ 101.88 $

2014  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2015  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2016  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2017  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2018  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2019  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2020  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2021  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2022  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2023  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2024  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2025  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2026  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

2027  $  $  $ 65.56 $ 61.90 $ 69.23 $  $  $ 3.06 $ 0.02 $ 68.63 $ 64.97 $ 72.31 $

Note: All values in millions of year 2000 dollars.

Source: Mean Value 90 Percent Confidence Bound All Stage 2 DBPR Costs Non Treatment Costs Implementation IDSE Siginificant Excursion Derived from Exhibits K. 1f and K. 1g and from Appendix D, Exhibits D. 1 through D. 7. Year Treatment Capital Costs Mean Value 90 Percent Confidence Bound Treatment O& MCosts Mean Value 90 Percent Confidence Bound Monitoring Economic Analysis for the Stage 2 DBPR Proposal July 2003 IDSE Sensitivity Analysis 2 Year Implementatio n Costs IDSE Costs Compliance Monitoring Costs 2003 3.34 $ 0.76 $ 0.34 $ 2004 3.34 $ 1.05 $ 0.34 $ 2005  $ 0.29 $ 0.34 $ 2006  $ 5.60 $ 0.34 $ 2007  $  $ 0.34 $ 2008  $  $ 0.34 $ 2009  $  $ 0.34 $ 2010  $  $ 0.34 $ 2011  $  $ 0.34 $ 2012  $  $ 0.34 $ 2013  $  $ 0.34 $ 2014  $  $ 0.34 $ 2015  $  $ 0.34 $ 2016  $  $ 0.34 $ 2017  $  $ 0.34 $ 2018  $  $ 0.34 $ 2019  $  $ 0.34 $ 2020  $  $ 0.34 $ 2021  $  $ 0.34 $ 2022  $  $ 0.34 $ 2023  $  $ 0.34 $ 2024  $  $ 0.34 $ 2025  $  $ 0.34 $ 2026  $  $ 0.34 $ 2027  $  $ 0.34 $

Note: All values in millions of year 2000 dollars.

Source: Derived from Exhibits K. 1h and D. 7. Exhibit K. 7h Projections of Stage 2 DBPR Primacy Agency Costs Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7i Present Value of Total Annual Cost Projections at 3% Discount Rate ( All Systems and Primacy Agencies) IDSE Sensitivity Analysis 2 Primacy Agencies Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) ( 95th % tile) Lower ( 5th % tile) ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

2003 30.3 $ 30.3 $ 30.3 $ 0.1 $ 0.1 $ 0.1 $ 1.4 $ 1.4 $ 1.4 $ 0.0 $ 0.0 $ 0.0 $ 4.4 $ 36.2 $ 36.2 $ 36.2 $

2004 28.6 $ 28.6 $ 28.6 $ 0.1 $ 0.1 $ 0.1 $ 1.2 $ 1.2 $ 1.2 $ 0.0 $ 0.0 $ 0.0 $ 4.6 $ 34.5 $ 34.5 $ 34.5 $

2005 112.0 $ 101.2 $ 122.9 $ 1.6 $ 1.4 $ 1.7 $ 44.1 $ 39.4 $ 48.7 $ 2.0 $ 1.8 $ 2.2 $ 0.6 $ 160.3 $ 144.5 $ 176.3 $

2006 117.7 $ 107.0 $ 128.6 $ 1.7 $ 1.5 $ 1.8 $ 48.1 $ 43.3 $ 52.8 $ 1.7 $ 1.5 $ 1.9 $ 5.4 $ 174.6 $ 158.8 $ 190.6 $

2007 115.3 $ 104.7 $ 126.1 $ 1.8 $ 1.6 $ 1.9 $ 46.3 $ 41.5 $ 51.1 $ 1.8 $ 1.6 $ 2.0 $ 0.3 $ 165.4 $ 149.6 $ 181.4 $

2008 117.0 $ 106.3 $ 127.7 $ 1.9 $ 1.7 $ 2.1 $ 49.8 $ 45.0 $ 54.7 $ 2.3 $ 2.0 $ 2.5 $ 0.3 $ 171.2 $ 155.4 $ 187.2 $

2009 116.8 $ 106.2 $ 127.4 $ 2.0 $ 1.8 $ 2.1 $ 50.8 $ 45.9 $ 55.7 $ 1.9 $ 1.7 $ 2.2 $ 0.3 $ 171.7 $ 155.9 $ 187.7 $

2010 117.4 $ 107.0 $ 128.0 $ 2.1 $ 1.9 $ 2.2 $ 54.0 $ 49.1 $ 59.0 $ 2.0 $ 1.8 $ 2.2 $ 0.3 $ 175.7 $ 159.9 $ 191.7 $

2011 36.3 $ 33.9 $ 38.7 $ 1.8 $ 1.7 $ 1.9 $ 30.6 $ 28.0 $ 33.1 $ 2.0 $ 1.7 $ 2.2 $ 0.3 $ 70.9 $ 65.6 $ 76.2 $

2012 36.4 $ 34.0 $ 38.7 $ 1.9 $ 1.7 $ 2.0 $ 30.4 $ 27.9 $ 32.9 $ 2.0 $ 1.8 $ 2.3 $ 0.3 $ 70.9 $ 65.7 $ 76.1 $

2013 36.4 $ 34.1 $ 38.8 $ 1.9 $ 1.8 $ 2.1 $ 30.2 $ 27.7 $ 32.6 $ 2.1 $ 1.8 $ 2.3 $ 0.3 $ 70.8 $ 65.6 $ 76.1 $

2014 26.5 $ 25.2 $ 27.9 $ 1.1 $ 1.0 $ 1.1 $ 21.0 $ 19.9 $ 22.1 $ 1.0 $ 0.9 $ 1.0 $ 0.2 $ 49.8 $ 47.2 $ 52.5 $

2015 25.8 $ 24.4 $ 27.1 $ 1.1 $ 1.0 $ 1.1 $ 20.4 $ 19.3 $ 21.5 $ 0.9 $ 0.8 $ 1.0 $ 0.2 $ 48.4 $ 45.8 $ 51.0 $

2016 25.0 $ 23.7 $ 26.3 $ 1.0 $ 1.0 $ 1.1 $ 19.8 $ 18.7 $ 20.9 $ 0.9 $ 0.8 $ 1.0 $ 0.2 $ 47.0 $ 44.5 $ 49.5 $

2017 24.3 $ 23.0 $ 25.5 $ 1.0 $ 0.9 $ 1.0 $ 19.2 $ 18.2 $ 20.3 $ 0.9 $ 0.8 $ 1.0 $ 0.2 $ 45.6 $ 43.2 $ 48.0 $

2018 23.6 $ 22.4 $ 24.8 $ 1.0 $ 0.9 $ 1.0 $ 18.7 $ 17.7 $ 19.7 $ 0.8 $ 0.8 $ 0.9 $ 0.2 $ 44.3 $ 41.9 $ 46.6 $

2019 22.9 $ 21.7 $ 24.1 $ 0.9 $ 0.9 $ 1.0 $ 18.1 $ 17.2 $ 19.1 $ 0.8 $ 0.7 $ 0.9 $ 0.2 $ 43.0 $ 40.7 $ 45.3 $

2020 22.2 $ 21.1 $ 23.4 $ 0.9 $ 0.9 $ 1.0 $ 17.6 $ 16.7 $ 18.5 $ 0.8 $ 0.7 $ 0.9 $ 0.2 $ 41.7 $ 39.5 $ 44.0 $

2021 21.6 $ 20.5 $ 22.7 $ 0.9 $ 0.8 $ 0.9 $ 17.1 $ 16.2 $ 18.0 $ 0.8 $ 0.7 $ 0.9 $ 0.2 $ 40.5 $ 38.4 $ 42.7 $

2022 20.9 $ 19.9 $ 22.0 $ 0.9 $ 0.8 $ 0.9 $ 16.6 $ 15.7 $ 17.5 $ 0.8 $ 0.7 $ 0.8 $ 0.2 $ 39.3 $ 37.2 $ 41.4 $

2023 20.3 $ 19.3 $ 21.4 $ 0.8 $ 0.8 $ 0.9 $ 16.1 $ 15.2 $ 17.0 $ 0.7 $ 0.7 $ 0.8 $ 0.2 $ 38.2 $ 36.2 $ 40.2 $

2024 19.7 $ 18.7 $ 20.8 $ 0.8 $ 0.8 $ 0.9 $ 15.6 $ 14.8 $ 16.5 $ 0.7 $ 0.6 $ 0.8 $ 0.2 $ 37.1 $ 35.1 $ 39.1 $

2025 19.2 $ 18.2 $ 20.2 $ 0.8 $ 0.7 $ 0.8 $ 15.2 $ 14.4 $ 16.0 $ 0.7 $ 0.6 $ 0.8 $ 0.2 $ 36.0 $ 34.1 $ 37.9 $

2026 18.6 $ 17.6 $ 19.6 $ 0.8 $ 0.7 $ 0.8 $ 14.7 $ 13.9 $ 15.5 $ 0.7 $ 0.6 $ 0.7 $ 0.2 $ 34.9 $ 33.1 $ 36.8 $

2027 18.1 $ 17.1 $ 19.0 $ 0.7 $ 0.7 $ 0.8 $ 14.3 $ 13.5 $ 15.1 $ 0.7 $ 0.6 $ 0.7 $ 0.2 $ 33.9 $ 32.1 $ 35.7 $

Total 1,172.9 $ 1,086.0 $ 1,260.6 $ 29.4 $ 27.3 $ 31.4 $ 631.1 $ 581.8 $ 680.7 $ 28.9 $ 25.7 $ 32.0 $ 19.9 $ 1,882.2 $ 1,740.7 $ 2,024.6 $

Ann. 67.4 $ 62.4 $ 72.4 $ 1.7 $ 1.6 $ 1.8 $ 36.2 $ 33.4 $ 39.1 $ 1.7 $ 1.5 $ 1.8 $ 1.1 $ 108.1 $ 100.0 $ 116.3 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 7a through K. 7h. 90 Percent Confidence Bound Total 90 Percent Confidence Bound 90 Percent Confidence Bound Surface Water NTNCWS Disinfecting Ground Water NTNCWS Surface Water CWS Mean Value Disinfecting Ground Water CWS Present values in millions of 2000 dollars. Estimates are discounted to 2003.

Detail may not add exactly to totals due to independent rounding. Mean Value Mean Value 90 Percent Confidence Bound Point Estimate Mean Value 90 Percent Confidence Bound Mean Value Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7j Present Value of Annual Capital Treatment Cost Projections at 3% Discount Rate ( All Systems) IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) ( 5th % tile) ( 95th % tile) ( 5th % tile) ( 95th % tile) Lower ( 5th % tile) ( 95th % tile) ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2004  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2005 106.6 $ 96.0 $ 117.2 $ 1.4 $ 1.3 $ 1.5 $ 38.7 $ 34.2 $ 43.1 $ 1.5 $ 1.3 $ 1.7 $ 148.1 $ 132.8 $ 163.6 $

2006 103.5 $ 93.2 $ 113.8 $ 1.4 $ 1.2 $ 1.5 $ 37.6 $ 33.2 $ 41.9 $ 1.4 $ 1.2 $ 1.6 $ 143.8 $ 128.9 $ 158.8 $

2007 100.5 $ 90.5 $ 110.5 $ 1.3 $ 1.2 $ 1.5 $ 36.5 $ 32.3 $ 40.7 $ 1.4 $ 1.2 $ 1.6 $ 139.6 $ 125.2 $ 154.2 $

2008 97.5 $ 87.9 $ 107.3 $ 1.3 $ 1.1 $ 1.4 $ 35.4 $ 31.3 $ 39.5 $ 1.3 $ 1.2 $ 1.5 $ 135.6 $ 121.5 $ 149.7 $

2009 94.7 $ 85.3 $ 104.2 $ 1.2 $ 1.1 $ 1.4 $ 34.4 $ 30.4 $ 38.3 $ 1.3 $ 1.1 $ 1.5 $ 131.6 $ 118.0 $ 145.3 $

2010 91.9 $ 82.8 $ 101.1 $ 1.2 $ 1.1 $ 1.3 $ 33.4 $ 29.5 $ 37.2 $ 1.3 $ 1.1 $ 1.4 $ 127.8 $ 114.5 $ 141.1 $

2011 9.6 $ 8.6 $ 10.6 $ 0.9 $ 0.8 $ 0.9 $ 9.1 $ 7.7 $ 10.4 $ 1.2 $ 1.0 $ 1.3 $ 20.7 $ 18.1 $ 23.3 $

2012 9.3 $ 8.4 $ 10.3 $ 0.8 $ 0.7 $ 0.9 $ 8.8 $ 7.4 $ 10.1 $ 1.1 $ 1.0 $ 1.3 $ 20.1 $ 17.6 $ 22.7 $

2013 9.1 $ 8.1 $ 10.0 $ 0.8 $ 0.7 $ 0.9 $ 8.5 $ 7.2 $ 9.8 $ 1.1 $ 1.0 $ 1.2 $ 19.5 $ 17.0 $ 22.0 $

2014  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2015  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2016  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2017  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2018  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2019  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2020  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2021  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2022  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2023  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2024  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2025  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2026  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2027  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

Total 622.7 $ 560.9 $ 685.2 $ 10.3 $ 9.2 $ 11.3 $ 242.3 $ 213.4 $ 271.2 $ 11.5 $ 10.0 $ 13.1 $ 886.8 $ 793.6 $ 980.7 $

Ann. 35.8 $ 32.2 $ 39.3 $ 0.6 $ 0.5 $ 0.7 $ 13.9 $ 12.3 $ 15.6 $ 0.7 $ 0.6 $ 0.7 $ 50.9 $ 45.6 $ 56.3 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 7a through K. 7h. Surface Water CWS Surface Water NTNCWS Disinfecting Ground Water CWS 90 Percent Confidence Bound Disinfecting Ground Water NTNCWS Total Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Mean Value Detail may not add exactly to totals due to independent rounding. Mean Value 90 Percent Confidence Bound Present values in millions of 2000 dollars. Estimates are discounted to 2003. Mean Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7k Present Value of Annual O& M Treatment Cost Projections at 3% Discount Rate ( All Systems) IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) ( 5th % tile) ( 95th % tile) ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) ( 95th % tile) ( 5th % tile) ( 95th % tile)

2003  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2004  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2005 5.3 $ 5.0 $ 5.5 $ 0.2 $ 0.2 $ 0.2 $ 3.5 $ 3.2 $ 3.7 $ 0.1 $ 0.1 $ 0.2 $ 9.0 $ 8.5 $ 9.5 $

2006 10.2 $ 9.7 $ 10.7 $ 0.3 $ 0.3 $ 0.3 $ 6.7 $ 6.3 $ 7.1 $ 0.3 $ 0.2 $ 0.3 $ 17.5 $ 16.6 $ 18.5 $

2007 14.9 $ 14.1 $ 15.6 $ 0.5 $ 0.4 $ 0.5 $ 9.8 $ 9.2 $ 10.4 $ 0.4 $ 0.4 $ 0.4 $ 25.5 $ 24.1 $ 26.9 $

2008 19.3 $ 18.3 $ 20.2 $ 0.6 $ 0.6 $ 0.6 $ 12.7 $ 11.9 $ 13.5 $ 0.5 $ 0.5 $ 0.6 $ 33.0 $ 31.2 $ 34.9 $

2009 23.4 $ 22.2 $ 24.5 $ 0.7 $ 0.7 $ 0.7 $ 15.4 $ 14.4 $ 16.3 $ 0.6 $ 0.6 $ 0.7 $ 40.1 $ 37.9 $ 42.3 $

2010 27.2 $ 25.9 $ 28.6 $ 0.8 $ 0.8 $ 0.9 $ 17.9 $ 16.8 $ 19.0 $ 0.7 $ 0.7 $ 0.8 $ 46.7 $ 44.1 $ 49.3 $

2011 27.6 $ 26.2 $ 29.0 $ 0.9 $ 0.9 $ 1.0 $ 18.1 $ 17.0 $ 19.2 $ 0.8 $ 0.7 $ 0.9 $ 47.5 $ 44.8 $ 50.1 $

2012 28.0 $ 26.6 $ 29.4 $ 1.0 $ 1.0 $ 1.1 $ 18.3 $ 17.2 $ 19.4 $ 0.9 $ 0.8 $ 1.0 $ 48.2 $ 45.5 $ 50.9 $

2013 28.2 $ 26.8 $ 29.7 $ 1.1 $ 1.0 $ 1.2 $ 18.5 $ 17.3 $ 19.6 $ 1.0 $ 0.9 $ 1.1 $ 48.8 $ 46.1 $ 51.5 $

2014 27.4 $ 26.0 $ 28.8 $ 1.1 $ 1.0 $ 1.1 $ 17.9 $ 16.8 $ 19.1 $ 1.0 $ 0.9 $ 1.0 $ 47.4 $ 44.7 $ 50.0 $

2015 26.6 $ 25.3 $ 28.0 $ 1.0 $ 1.0 $ 1.1 $ 17.4 $ 16.3 $ 18.5 $ 0.9 $ 0.8 $ 1.0 $ 46.0 $ 43.4 $ 48.6 $

2016 25.8 $ 24.6 $ 27.1 $ 1.0 $ 1.0 $ 1.1 $ 16.9 $ 15.8 $ 18.0 $ 0.9 $ 0.8 $ 1.0 $ 44.6 $ 42.1 $ 47.1 $

2017 25.1 $ 23.8 $ 26.4 $ 1.0 $ 0.9 $ 1.0 $ 16.4 $ 15.4 $ 17.4 $ 0.9 $ 0.8 $ 1.0 $ 43.3 $ 40.9 $ 45.8 $

2018 24.4 $ 23.1 $ 25.6 $ 0.9 $ 0.9 $ 1.0 $ 15.9 $ 14.9 $ 16.9 $ 0.8 $ 0.8 $ 0.9 $ 42.1 $ 39.7 $ 44.4 $

2019 23.7 $ 22.5 $ 24.8 $ 0.9 $ 0.9 $ 1.0 $ 15.5 $ 14.5 $ 16.4 $ 0.8 $ 0.7 $ 0.9 $ 40.9 $ 38.6 $ 43.1 $

2020 23.0 $ 21.8 $ 24.1 $ 0.9 $ 0.8 $ 0.9 $ 15.0 $ 14.1 $ 16.0 $ 0.8 $ 0.7 $ 0.9 $ 39.7 $ 37.4 $ 41.9 $

2021 22.3 $ 21.2 $ 23.4 $ 0.9 $ 0.8 $ 0.9 $ 14.6 $ 13.7 $ 15.5 $ 0.8 $ 0.7 $ 0.8 $ 38.5 $ 36.4 $ 40.7 $

2022 21.6 $ 20.6 $ 22.7 $ 0.8 $ 0.8 $ 0.9 $ 14.1 $ 13.3 $ 15.0 $ 0.8 $ 0.7 $ 0.8 $ 37.4 $ 35.3 $ 39.5 $

2023 21.0 $ 20.0 $ 22.1 $ 0.8 $ 0.8 $ 0.9 $ 13.7 $ 12.9 $ 14.6 $ 0.7 $ 0.7 $ 0.8 $ 36.3 $ 34.3 $ 38.3 $

2024 20.4 $ 19.4 $ 21.4 $ 0.8 $ 0.8 $ 0.8 $ 13.3 $ 12.5 $ 14.2 $ 0.7 $ 0.6 $ 0.8 $ 35.2 $ 33.3 $ 37.2 $

2025 19.8 $ 18.8 $ 20.8 $ 0.8 $ 0.7 $ 0.8 $ 12.9 $ 12.1 $ 13.8 $ 0.7 $ 0.6 $ 0.8 $ 34.2 $ 32.3 $ 36.1 $

2026 19.2 $ 18.3 $ 20.2 $ 0.7 $ 0.7 $ 0.8 $ 12.6 $ 11.8 $ 13.4 $ 0.7 $ 0.6 $ 0.7 $ 33.2 $ 31.4 $ 35.1 $

2027 18.7 $ 17.7 $ 19.6 $ 0.7 $ 0.7 $ 0.8 $ 12.2 $ 11.4 $ 13.0 $ 0.6 $ 0.6 $ 0.7 $ 32.2 $ 30.4 $ 34.1 $

Total 503.1 $ 477.9 $ 528.3 $ 18.5 $ 17.5 $ 19.5 $ 329.3 $ 308.9 $ 350.0 $ 16.5 $ 14.8 $ 18.0 $ 867.3 $ 819.0 $ 915.8 $

Ann. 28.9 $ 27.4 $ 30.3 $ 1.1 $ 1.0 $ 1.1 $ 18.9 $ 17.7 $ 20.1 $ 0.9 $ 0.8 $ 1.0 $ 49.8 $ 47.0 $ 52.6 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 7a through K. 7h. Detail may not add exactly to totals due to independent rounding. Mean Value 90 Percent Confidence Bound Present values in millions of 2000 dollars. Estimates are discounted to 2003. Disinfecting Ground Water NTNCWS Total Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Surface Water CWS Surface Water NTNCWS Disinfecting Ground Water CWS Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7l Present Value of Annual Non Treatment Cost Projections at 3% Discount Rate ( All Systems) IDSE Sensitivity Analysis 2 2003 0.8 $ 29.5 $  $  $ 0.0 $ 0.1 $  $  $ 0.1 $ 1.3 $  $  $ 0.0 $ 0.0 $  $  $ 0.9 $ 30.8 $  $  $

2004  $ 28.6 $  $  $  $ 0.1 $  $  $  $ 1.2 $  $  $  $ 0.0 $  $  $  $ 29.9 $  $  $

2005 0.2 $  $  $  $ 0.0 $  $  $  $ 1.9 $  $  $  $ 0.4 $  $  $  $ 2.6 $  $  $  $

2006 0.7 $ 3.3 $  $  $ 0.0 $  $  $  $ 0.1 $ 3.7 $  $  $ 0.0 $ 0.0 $  $  $ 0.8 $ 7.0 $  $  $

2007  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2008 0.2 $  $  $ 0.0 $ 0.0 $  $  $  $ 1.8 $  $  $  $ 0.4 $  $  $  $ 2.3 $  $  $ 0.0 $

2009  $  $ ( 1.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.0 $  $  $  $ 0.0 $  $  $  $ ( 0.3) $ 0.0 $

2010  $  $ ( 1.8) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.7 $  $  $  $ 0.0 $  $  $  $ 1.0 $ 0.0 $

2011  $  $ ( 1.0) $ 0.0 $  $  $ 0.0 $  $  $  $ 3.4 $  $  $  $ 0.0 $  $  $  $ 2.4 $ 0.0 $

2012  $  $ ( 1.0) $ 0.0 $  $  $ 0.0 $  $  $  $ 3.3 $  $  $  $ 0.0 $  $  $  $ 2.3 $ 0.0 $

2013  $  $ ( 0.9) $ 0.0 $  $  $ 0.0 $  $  $  $ 3.2 $  $  $  $ 0.0 $  $  $  $ 2.3 $ 0.0 $

2014  $  $ ( 0.9) $ 0.0 $  $  $ 0.0 $  $  $  $ 3.1 $  $  $  $ 0.0 $  $  $  $ 2.2 $ 0.0 $

2015  $  $ ( 0.9) $ 0.0 $  $  $ 0.0 $  $  $  $ 3.0 $  $  $  $ 0.0 $  $  $  $ 2.1 $ 0.0 $

2016  $  $ ( 0.8) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.9 $  $  $  $ 0.0 $  $  $  $ 2.1 $ 0.0 $

2017  $  $ ( 0.8) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.8 $  $  $  $ 0.0 $  $  $  $ 2.0 $ 0.0 $

2018  $  $ ( 0.8) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.7 $  $  $  $ 0.0 $  $  $  $ 2.0 $ 0.0 $

2019  $  $ ( 0.8) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.7 $  $  $  $ 0.0 $  $  $  $ 1.9 $ 0.0 $

2020  $  $ ( 0.8) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.6 $  $  $  $ 0.0 $  $  $  $ 1.9 $ 0.0 $

2021  $  $ ( 0.7) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.5 $  $  $  $ 0.0 $  $  $  $ 1.8 $ 0.0 $

2022  $  $ ( 0.7) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.4 $  $  $  $ 0.0 $  $  $  $ 1.7 $ 0.0 $

2023  $  $ ( 0.7) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.4 $  $  $  $ 0.0 $  $  $  $ 1.7 $ 0.0 $

2024  $  $ ( 0.7) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.3 $  $  $  $ 0.0 $  $  $  $ 1.6 $ 0.0 $

2025  $  $ ( 0.6) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.2 $  $  $  $ 0.0 $  $  $  $ 1.6 $ 0.0 $

2026  $  $ ( 0.6) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.2 $  $  $  $ 0.0 $  $  $  $ 1.6 $ 0.0 $

2027  $  $ ( 0.6) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.1 $  $  $  $ 0.0 $  $  $  $ 1.5 $ 0.0 $

Total 1.8 $ 61.4 $ ( 16.4) $ 0.2 $ 0.1 $ 0.2 $ 0.3 $  $ 3.9 $ 6.2 $ 49.5 $  $ 0.8 $ 0.0 $ 0.1 $  $ 6.6 $ 67.8 $ 33.5 $ 0.2 $

Ann. 0.1 $ 3.5 $ ( 0.9) $ 0.0 $ 0.0 $ 0.0 $ 0.0 $  $ 0.2 $ 0.4 $ 2.8 $  $ 0.0 $ 0.0 $ 0.0 $  $ 0.4 $ 3.9 $ 1.9 $ 0.0 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 7a through K. 7h. Surface Water CWS Surface Water NTNCWS Disinfecting Ground Water CWS Monitoring Siginificant Excursion Monitoring Siginificant Excursion Monitoring Disinfecting Ground Water NTNCWS Total Implementation IDSE Implementation IDSE Implementation IDSE Monitoring Siginificant Excursion Detail may not add exactly to totals due to independent rounding. Implementation IDSE Present values in millions of 2000 dollars. Estimates are discounted to 2003. Implementation IDSE Siginificant Excursion Monitoring Siginificant Excursion Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7m Present Value of Total Annual Cost Projections at 7% Discount Rate ( All Systems and Primacy Agencies)

IDSE Sensitivity Analysis 2 Primacy Agencies Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

2003 30.3 $ 30.3 $ 30.3 $ 0.1 $ 0.1 $ 0.1 $ 1.4 $ 1.4 $ 1.4 $ 0.0 $ 0.0 $ 0.0 $ 4.4 $ 36.2 $ 36.2 $ 36.2 $

2004 27.6 $ 27.6 $ 27.6 $ 0.1 $ 0.1 $ 0.1 $ 1.2 $ 1.2 $ 1.2 $ 0.0 $ 0.0 $ 0.0 $ 4.4 $ 33.2 $ 33.2 $ 33.2 $

2005 103.8 $ 93.8 $ 113.9 $ 1.5 $ 1.3 $ 1.6 $ 40.8 $ 36.5 $ 45.2 $ 1.9 $ 1.7 $ 2.1 $ 0.6 $ 148.5 $ 133.9 $ 163.3 $

2006 105.0 $ 95.4 $ 114.7 $ 1.5 $ 1.4 $ 1.6 $ 42.9 $ 38.7 $ 47.1 $ 1.5 $ 1.3 $ 1.7 $ 4.9 $ 155.8 $ 141.6 $ 170.0 $

2007 99.0 $ 89.9 $ 108.3 $ 1.5 $ 1.4 $ 1.7 $ 39.7 $ 35.6 $ 43.8 $ 1.5 $ 1.3 $ 1.7 $ 0.3 $ 142.1 $ 128.4 $ 155.8 $

2008 96.7 $ 87.9 $ 105.5 $ 1.6 $ 1.4 $ 1.7 $ 41.2 $ 37.2 $ 45.2 $ 1.9 $ 1.7 $ 2.0 $ 0.2 $ 141.5 $ 128.4 $ 154.7 $

2009 92.9 $ 84.5 $ 101.4 $ 1.6 $ 1.4 $ 1.7 $ 40.4 $ 36.5 $ 44.3 $ 1.5 $ 1.3 $ 1.7 $ 0.2 $ 136.6 $ 124.0 $ 149.3 $

2010 89.9 $ 81.9 $ 98.0 $ 1.6 $ 1.4 $ 1.7 $ 41.4 $ 37.6 $ 45.2 $ 1.5 $ 1.3 $ 1.7 $ 0.2 $ 134.6 $ 122.5 $ 146.8 $

2011 26.7 $ 25.0 $ 28.5 $ 1.3 $ 1.2 $ 1.4 $ 22.5 $ 20.7 $ 24.4 $ 1.5 $ 1.3 $ 1.6 $ 0.2 $ 52.3 $ 48.4 $ 56.1 $

2012 25.8 $ 24.1 $ 27.5 $ 1.3 $ 1.2 $ 1.4 $ 21.6 $ 19.8 $ 23.3 $ 1.4 $ 1.3 $ 1.6 $ 0.2 $ 50.3 $ 46.6 $ 54.0 $

2013 24.9 $ 23.3 $ 26.5 $ 1.3 $ 1.2 $ 1.4 $ 20.6 $ 18.9 $ 22.3 $ 1.4 $ 1.3 $ 1.6 $ 0.2 $ 48.4 $ 44.8 $ 52.0 $

2014 17.4 $ 16.5 $ 18.4 $ 0.7 $ 0.7 $ 0.8 $ 13.8 $ 13.1 $ 14.6 $ 0.6 $ 0.6 $ 0.7 $ 0.2 $ 32.8 $ 31.0 $ 34.5 $

2015 16.3 $ 15.5 $ 17.2 $ 0.7 $ 0.6 $ 0.7 $ 12.9 $ 12.2 $ 13.6 $ 0.6 $ 0.5 $ 0.6 $ 0.2 $ 30.6 $ 29.0 $ 32.3 $

2016 15.2 $ 14.5 $ 16.0 $ 0.6 $ 0.6 $ 0.7 $ 12.1 $ 11.4 $ 12.7 $ 0.5 $ 0.5 $ 0.6 $ 0.1 $ 28.6 $ 27.1 $ 30.1 $

2017 14.2 $ 13.5 $ 15.0 $ 0.6 $ 0.6 $ 0.6 $ 11.3 $ 10.7 $ 11.9 $ 0.5 $ 0.5 $ 0.6 $ 0.1 $ 26.7 $ 25.3 $ 28.2 $

2018 13.3 $ 12.6 $ 14.0 $ 0.5 $ 0.5 $ 0.6 $ 10.5 $ 10.0 $ 11.1 $ 0.5 $ 0.4 $ 0.5 $ 0.1 $ 25.0 $ 23.7 $ 26.3 $

2019 12.4 $ 11.8 $ 13.1 $ 0.5 $ 0.5 $ 0.5 $ 9.8 $ 9.3 $ 10.4 $ 0.4 $ 0.4 $ 0.5 $ 0.1 $ 23.4 $ 22.1 $ 24.6 $

2020 11.6 $ 11.0 $ 12.2 $ 0.5 $ 0.5 $ 0.5 $ 9.2 $ 8.7 $ 9.7 $ 0.4 $ 0.4 $ 0.5 $ 0.1 $ 21.8 $ 20.7 $ 23.0 $

2021 10.9 $ 10.3 $ 11.4 $ 0.4 $ 0.4 $ 0.5 $ 8.6 $ 8.1 $ 9.1 $ 0.4 $ 0.4 $ 0.4 $ 0.1 $ 20.4 $ 19.3 $ 21.5 $

2022 10.2 $ 9.6 $ 10.7 $ 0.4 $ 0.4 $ 0.4 $ 8.0 $ 7.6 $ 8.5 $ 0.4 $ 0.3 $ 0.4 $ 0.1 $ 19.1 $ 18.1 $ 20.1 $

2023 9.5 $ 9.0 $ 10.0 $ 0.4 $ 0.4 $ 0.4 $ 7.5 $ 7.1 $ 7.9 $ 0.3 $ 0.3 $ 0.4 $ 0.1 $ 17.8 $ 16.9 $ 18.8 $

2024 8.9 $ 8.4 $ 9.3 $ 0.4 $ 0.3 $ 0.4 $ 7.0 $ 6.6 $ 7.4 $ 0.3 $ 0.3 $ 0.3 $ 0.1 $ 16.7 $ 15.8 $ 17.5 $

2025 8.3 $ 7.9 $ 8.7 $ 0.3 $ 0.3 $ 0.4 $ 6.6 $ 6.2 $ 6.9 $ 0.3 $ 0.3 $ 0.3 $ 0.1 $ 15.6 $ 14.7 $ 16.4 $

2026 7.7 $ 7.3 $ 8.2 $ 0.3 $ 0.3 $ 0.3 $ 6.1 $ 5.8 $ 6.5 $ 0.3 $ 0.3 $ 0.3 $ 0.1 $ 14.6 $ 13.8 $ 15.3 $

2027 7.2 $ 6.9 $ 7.6 $ 0.3 $ 0.3 $ 0.3 $ 5.7 $ 5.4 $ 6.0 $ 0.3 $ 0.2 $ 0.3 $ 0.1 $ 13.6 $ 12.9 $ 14.3 $

Total 885.9 $ 818.4 $ 954.0 $ 20.0 $ 18.6 $ 21.5 $ 442.9 $ 406.4 $ 479.6 $ 20.1 $ 17.8 $ 22.2 $ 17.3 $ 1,386.2 $ 1,278.5 $ 1,494.5 $

Ann. 76.0 $ 70.2 $ 81.9 $ 1.7 $ 1.6 $ 1.8 $ 38.0 $ 34.9 $ 41.2 $ 1.7 $ 1.5 $ 1.9 $ 1.5 $ 118.9 $ 109.7 $ 128.2 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 7a through K. 7h. Total 90 Percent Confidence Bound 90 Percent Confidence Bound Surface Water NTNCWS Disinfecting Ground Water NTNCWS Mean Value Mean Value Disinfecting Ground Water CWS 90 Percent Confidence Bound Surface Water CWS Present values in millions of 2000 dollars. Estimates are discounted to 2003.

Detail may not add exactly to totals due to independent rounding. Mean Value Mean Value Mean Value 90 Percent Confidence Bound 90 Percent Confidence Bound Point Estimate Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7n Present Value of Annual Capital Treatment Cost Projections at 7% Discount Rate ( All Systems)

IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2004  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2005 98.8 $ 89.0 $ 108.6 $ 1.3 $ 1.2 $ 1.4 $ 35.9 $ 31.7 $ 40.0 $ 1.4 $ 1.2 $ 1.5 $ 137.3 $ 123.0 $ 151.6 $

2006 92.3 $ 83.2 $ 101.5 $ 1.2 $ 1.1 $ 1.3 $ 33.5 $ 29.7 $ 37.4 $ 1.3 $ 1.1 $ 1.4 $ 128.3 $ 115.0 $ 141.7 $

2007 86.3 $ 77.7 $ 94.9 $ 1.1 $ 1.0 $ 1.2 $ 31.3 $ 27.7 $ 34.9 $ 1.2 $ 1.0 $ 1.3 $ 119.9 $ 107.5 $ 132.4 $

2008 80.6 $ 72.6 $ 88.7 $ 1.1 $ 0.9 $ 1.2 $ 29.3 $ 25.9 $ 32.6 $ 1.1 $ 1.0 $ 1.2 $ 112.0 $ 100.4 $ 123.7 $

2009 75.3 $ 67.9 $ 82.9 $ 1.0 $ 0.9 $ 1.1 $ 27.4 $ 24.2 $ 30.5 $ 1.0 $ 0.9 $ 1.2 $ 104.7 $ 93.9 $ 115.6 $

2010 70.4 $ 63.4 $ 77.5 $ 0.9 $ 0.8 $ 1.0 $ 25.6 $ 22.6 $ 28.5 $ 1.0 $ 0.8 $ 1.1 $ 97.9 $ 87.7 $ 108.1 $

2011 7.1 $ 6.4 $ 7.8 $ 0.6 $ 0.6 $ 0.7 $ 6.7 $ 5.7 $ 7.7 $ 0.9 $ 0.7 $ 1.0 $ 15.3 $ 13.3 $ 17.2 $

2012 6.6 $ 5.9 $ 7.3 $ 0.6 $ 0.5 $ 0.7 $ 6.2 $ 5.3 $ 7.2 $ 0.8 $ 0.7 $ 0.9 $ 14.3 $ 12.5 $ 16.1 $

2013 6.2 $ 5.6 $ 6.8 $ 0.6 $ 0.5 $ 0.6 $ 5.8 $ 4.9 $ 6.7 $ 0.7 $ 0.6 $ 0.8 $ 13.3 $ 11.6 $ 15.0 $

2014  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2015  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2016  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2017  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2018  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2019  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2020  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2021  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2022  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2023  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2024  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2025  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2026  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2027  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

Total 523.6 $ 471.7 $ 576.1 $ 8.4 $ 7.5 $ 9.2 $ 201.6 $ 177.7 $ 225.5 $ 9.3 $ 8.1 $ 10.5 $ 742.9 $ 665.0 $ 821.4 $

Ann. 44.9 $ 40.5 $ 49.4 $ 0.7 $ 0.6 $ 0.8 $ 17.3 $ 15.2 $ 19.4 $ 0.8 $ 0.7 $ 0.9 $ 63.8 $ 57.1 $ 70.5 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 7a through K. 7h. Surface Water CWS Surface Water NTNCWS Disinfecting Ground Water CWS 90 Percent Confidence Bound Disinfecting Ground Water NTNCWS Total Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Mean Value Detail may not add exactly to totals due to independent rounding. Mean Value 90 Percent Confidence Bound Present values in millions of 2000 dollars. Estimates are discounted to 2003. Mean Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7o Present Value of Annual O& M Treatment Cost Projections at 7% Discount Rate ( All Systems)

IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2004  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2005 4.9 $ 4.6 $ 5.1 $ 0.1 $ 0.1 $ 0.2 $ 3.2 $ 3.0 $ 3.4 $ 0.1 $ 0.1 $ 0.1 $ 8.4 $ 7.9 $ 8.8 $

2006 9.1 $ 8.7 $ 9.6 $ 0.3 $ 0.3 $ 0.3 $ 6.0 $ 5.6 $ 6.4 $ 0.2 $ 0.2 $ 0.3 $ 15.6 $ 14.8 $ 16.5 $

2007 12.8 $ 12.1 $ 13.4 $ 0.4 $ 0.4 $ 0.4 $ 8.4 $ 7.9 $ 8.9 $ 0.3 $ 0.3 $ 0.4 $ 21.9 $ 20.7 $ 23.1 $

2008 15.9 $ 15.1 $ 16.7 $ 0.5 $ 0.5 $ 0.5 $ 10.5 $ 9.8 $ 11.1 $ 0.4 $ 0.4 $ 0.5 $ 27.3 $ 25.8 $ 28.8 $

2009 18.6 $ 17.7 $ 19.5 $ 0.6 $ 0.5 $ 0.6 $ 12.2 $ 11.5 $ 13.0 $ 0.5 $ 0.4 $ 0.5 $ 31.9 $ 30.1 $ 33.7 $

2010 20.9 $ 19.8 $ 21.9 $ 0.6 $ 0.6 $ 0.7 $ 13.7 $ 12.9 $ 14.6 $ 0.6 $ 0.5 $ 0.6 $ 35.8 $ 33.8 $ 37.7 $

2011 20.4 $ 19.3 $ 21.4 $ 0.7 $ 0.6 $ 0.7 $ 13.4 $ 12.5 $ 14.2 $ 0.6 $ 0.5 $ 0.7 $ 35.0 $ 33.1 $ 36.9 $

2012 19.8 $ 18.8 $ 20.8 $ 0.7 $ 0.7 $ 0.8 $ 13.0 $ 12.2 $ 13.8 $ 0.6 $ 0.6 $ 0.7 $ 34.2 $ 32.3 $ 36.1 $

2013 19.3 $ 18.3 $ 20.3 $ 0.8 $ 0.7 $ 0.8 $ 12.6 $ 11.8 $ 13.4 $ 0.7 $ 0.6 $ 0.7 $ 33.3 $ 31.5 $ 35.2 $

2014 18.0 $ 17.1 $ 18.9 $ 0.7 $ 0.7 $ 0.7 $ 11.8 $ 11.1 $ 12.5 $ 0.6 $ 0.6 $ 0.7 $ 31.1 $ 29.4 $ 32.9 $

2015 16.9 $ 16.0 $ 17.7 $ 0.7 $ 0.6 $ 0.7 $ 11.0 $ 10.3 $ 11.7 $ 0.6 $ 0.5 $ 0.6 $ 29.1 $ 27.5 $ 30.7 $

2016 15.7 $ 15.0 $ 16.5 $ 0.6 $ 0.6 $ 0.6 $ 10.3 $ 9.7 $ 10.9 $ 0.5 $ 0.5 $ 0.6 $ 27.2 $ 25.7 $ 28.7 $

2017 14.7 $ 14.0 $ 15.5 $ 0.6 $ 0.5 $ 0.6 $ 9.6 $ 9.0 $ 10.2 $ 0.5 $ 0.5 $ 0.6 $ 25.4 $ 24.0 $ 26.9 $

2018 13.8 $ 13.1 $ 14.4 $ 0.5 $ 0.5 $ 0.6 $ 9.0 $ 8.4 $ 9.6 $ 0.5 $ 0.4 $ 0.5 $ 23.8 $ 22.4 $ 25.1 $

2019 12.9 $ 12.2 $ 13.5 $ 0.5 $ 0.5 $ 0.5 $ 8.4 $ 7.9 $ 8.9 $ 0.4 $ 0.4 $ 0.5 $ 22.2 $ 21.0 $ 23.5 $

2020 12.0 $ 11.4 $ 12.6 $ 0.5 $ 0.4 $ 0.5 $ 7.9 $ 7.4 $ 8.3 $ 0.4 $ 0.4 $ 0.5 $ 20.8 $ 19.6 $ 21.9 $

2021 11.2 $ 10.7 $ 11.8 $ 0.4 $ 0.4 $ 0.5 $ 7.3 $ 6.9 $ 7.8 $ 0.4 $ 0.3 $ 0.4 $ 19.4 $ 18.3 $ 20.5 $

2022 10.5 $ 10.0 $ 11.0 $ 0.4 $ 0.4 $ 0.4 $ 6.9 $ 6.4 $ 7.3 $ 0.4 $ 0.3 $ 0.4 $ 18.1 $ 17.1 $ 19.1 $

2023 9.8 $ 9.3 $ 10.3 $ 0.4 $ 0.4 $ 0.4 $ 6.4 $ 6.0 $ 6.8 $ 0.3 $ 0.3 $ 0.4 $ 16.9 $ 16.0 $ 17.9 $

2024 9.2 $ 8.7 $ 9.6 $ 0.4 $ 0.3 $ 0.4 $ 6.0 $ 5.6 $ 6.4 $ 0.3 $ 0.3 $ 0.3 $ 15.8 $ 14.9 $ 16.7 $

2025 8.6 $ 8.1 $ 9.0 $ 0.3 $ 0.3 $ 0.4 $ 5.6 $ 5.3 $ 6.0 $ 0.3 $ 0.3 $ 0.3 $ 14.8 $ 14.0 $ 15.6 $

2026 8.0 $ 7.6 $ 8.4 $ 0.3 $ 0.3 $ 0.3 $ 5.2 $ 4.9 $ 5.6 $ 0.3 $ 0.2 $ 0.3 $ 13.8 $ 13.1 $ 14.6 $

2027 7.5 $ 7.1 $ 7.9 $ 0.3 $ 0.3 $ 0.3 $ 4.9 $ 4.6 $ 5.2 $ 0.3 $ 0.2 $ 0.3 $ 12.9 $ 12.2 $ 13.6 $

Total 310.4 $ 294.9 $ 326.0 $ 11.2 $ 10.6 $ 11.8 $ 203.2 $ 190.7 $ 216.0 $ 10.0 $ 8.9 $ 10.9 $ 534.8 $ 505.1 $ 564.7 $

Ann. 26.6 $ 25.3 $ 28.0 $ 1.0 $ 0.9 $ 1.0 $ 17.4 $ 16.4 $ 18.5 $ 0.9 $ 0.8 $ 0.9 $ 45.9 $ 43.3 $ 48.5 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 7a through K. 7h. Detail may not add exactly to totals due to independent rounding. Mean Value 90 Percent Confidence Bound Present values in millions of 2000 dollars. Estimates are discounted to 2003. Disinfecting Ground Water NTNCWS Total Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Mean Value 90 Percent Confidence Bound Surface Water CWS Surface Water NTNCWS Disinfecting Ground Water CWS Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 7p Present Value of Annual Non Treatment Cost Projections at 7% Discount Rate ( All Systems) IDSE Sensitivity Analysis 2 2003 0.8 $ 29.5 $  $  $ 0.0 $ 0.1 $  $  $ 0.1 $ 1.3 $  $  $ 0.0 $ 0.0 $  $  $ 0.9 $ 30.8 $  $  $

2004  $ 27.6 $  $  $  $ 0.1 $  $  $  $ 1.2 $  $  $  $ 0.0 $  $  $  $ 28.8 $  $  $

2005 0.2 $  $  $  $ 0.0 $  $  $  $ 1.8 $  $  $  $ 0.4 $  $  $  $ 2.4 $  $  $  $

2006 0.6 $ 3.0 $  $  $ 0.0 $  $  $  $ 0.1 $ 3.3 $  $  $ 0.0 $ 0.0 $  $  $ 0.7 $ 6.3 $  $  $

2007  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $  $

2008 0.1 $  $  $ 0.0 $ 0.0 $  $  $  $ 1.4 $  $  $  $ 0.3 $  $  $  $ 1.9 $  $  $ 0.0 $

2009  $  $ ( 1.0) $ 0.0 $  $  $ 0.0 $  $  $  $ 0.8 $  $  $  $ 0.0 $  $  $  $ ( 0.2) $ 0.0 $

2010  $  $ ( 1.4) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.1 $  $  $  $ 0.0 $  $  $  $ 0.8 $ 0.0 $

2011  $  $ ( 0.7) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.5 $  $  $  $ 0.0 $  $  $  $ 1.8 $ 0.0 $

2012  $  $ ( 0.7) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.3 $  $  $  $ 0.0 $  $  $  $ 1.7 $ 0.0 $

2013  $  $ ( 0.6) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.2 $  $  $  $ 0.0 $  $  $  $ 1.6 $ 0.0 $

2014  $  $ ( 0.6) $ 0.0 $  $  $ 0.0 $  $  $  $ 2.0 $  $  $  $ 0.0 $  $  $  $ 1.5 $ 0.0 $

2015  $  $ ( 0.6) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.9 $  $  $  $ 0.0 $  $  $  $ 1.4 $ 0.0 $

2016  $  $ ( 0.5) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.8 $  $  $  $ 0.0 $  $  $  $ 1.3 $ 0.0 $

2017  $  $ ( 0.5) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.7 $  $  $  $ 0.0 $  $  $  $ 1.2 $ 0.0 $

2018  $  $ ( 0.5) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.5 $  $  $  $ 0.0 $  $  $  $ 1.1 $ 0.0 $

2019  $  $ ( 0.4) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.4 $  $  $  $ 0.0 $  $  $  $ 1.0 $ 0.0 $

2020  $  $ ( 0.4) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.4 $  $  $  $ 0.0 $  $  $  $ 1.0 $ 0.0 $

2021  $  $ ( 0.4) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.3 $  $  $  $ 0.0 $  $  $  $ 0.9 $ 0.0 $

2022  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.2 $  $  $  $ 0.0 $  $  $  $ 0.8 $ 0.0 $

2023  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.1 $  $  $  $ 0.0 $  $  $  $ 0.8 $ 0.0 $

2024  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.0 $  $  $  $ 0.0 $  $  $  $ 0.7 $ 0.0 $

2025  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 1.0 $  $  $  $ 0.0 $  $  $  $ 0.7 $ 0.0 $

2026  $  $ ( 0.3) $ 0.0 $  $  $ 0.0 $  $  $  $ 0.9 $  $  $  $ 0.0 $  $  $  $ 0.6 $ 0.0 $

2027  $  $ ( 0.2) $ 0.0 $  $  $ 0.0 $  $  $  $ 0.8 $  $  $  $ 0.0 $  $  $  $ 0.6 $ 0.0 $

Total 1.7 $ 60.0 $ ( 10.0) $ 0.1 $ 0.1 $ 0.2 $ 0.2 $  $ 3.4 $ 5.7 $ 28.9 $  $ 0.7 $ 0.0 $ 0.0 $  $ 6.0 $ 65.9 $ 19.1 $ 0.1 $

Ann. 0.1 $ 5.1 $ ( 0.9) $ 0.0 $ 0.0 $ 0.0 $ 0.0 $  $ 0.3 $ 0.5 $ 2.5 $  $ 0.1 $ 0.0 $ 0.0 $  $ 0.5 $ 5.7 $ 1.6 $ 0.0 $

Notes:

Ann = value of total annualized at discount rate.

Source: Derived from Exhibits K. 7a through K. 7h. Detail may not add exactly to totals due to independent rounding. Implementation IDSE Present values in millions of 2000 dollars. Estimates are discounted to 2003. Implementation IDSE Siginificant Excursion Monitoring Siginificant Excursion Disinfecting Ground Water NTNCWS Total Implementation IDSE Implementation IDSE Implementation IDSE Monitoring Siginificant Surface Water CWS Surface Water NTNCWS Disinfecting Ground Water CWS Monitoring Siginificant Monitoring Siginificant Monitoring Economic Analysis for the Stage 2 DBPR Proposal July 2003 Economic Analysis for the Stage 2 DBPR Proposal July 2003 L 1 Appendix L Cost and Benefits Models L. 1 Summary This appendix provides detailed documentation of the cost and benefits models used for the Stage 2 DBPR along with a CD containing all data files and models. A flow chart is shown and then descriptions of each component of the flow chart and the files used in it are provided. The remainder of this appendix is organized as follows:

L. 2 Costs L. 2.1 Flow Chart L. 2.2 Baseline Inputs L. 2.3 Technology Unit Costs L. 2.4 Technology Selection Forecasts L. 2.5 Cost Models L. 2.6 Projections and Discounting L. 2.7 National Costs L. 2.8 Household Costs L. 3 Benefits L. 2 Cost L. 2.1 Flow Chart Exhibit L. 1 shows a flow chart of the Stage 2 Cost Model process. Each box in the flow chart represent one or more spreadsheets. Sections L. 2.2 through L. 2.8 detail the specific files in each of the boxes below. On an overall level, baseline data on systems, plants and flows is combined with unit cost data for each technology. These data are then combined with compliance forecasts as inputs to the cost models which calculate total costs. These costs are then discounted over time and then manipulated to give total national costs as well as household costs. Economic Analysis for the Stage 2 DBPR Proposal July 2003 L 2 Baseline Inputs Technology Unit Costs Technology Selection Forecasts Cost Models Non Treatment Cost Model Treatment Cost Model Projections and Discounting National Costs Household Costs Results Exhibit L. 1 Stage 2 DBPR Cost Model Flow Chart Economic Analysis for the Stage 2 DBPR Proposal July 2003 L 3 L. 2.2 Baseline Inputs The Baseline input files contain data input into the cost models to determine the conditions before changes are made to comply with the LT2ESWTR. They include number and types of systems, population served, flows, and technologies installed. The files included in this section are listed below.

° System and Population Inventories. xls This workbook is used for both the LT2ESWTR and Stage 2 DBPR cost models. It contains information from SDWIS and the Baseline Handbook on the number and type of PWSs and the population they serve.

° Stage 2 Drivers. xls This workbook calculates the baseline number of systems and plants performing each of the LT2 activities using the data from System and Population Inventories. It also calculates plant daily flows and the number of households served by plants performing LT2 activities.

° Stage 2 Rule Activity Schedule. xls A Stage 2 file showing the number of plants predicted to use membranes before and after Stage 2.

L. 2.3 Technology Unit Costs These files contain technology unit cost per plant ( capital and O& M) for all applicable technologies based on cost equations derived from the T& C document and average daily and design flows in the Stage 2 Drivers file. The files included under this heading are detailed below.

° Unit Cost Regressions. xls This workbook is used for both the LT2 and Stage 2 cost models. It contains regressions to the cost points presented in the Technology and Cost document which are used to calculate unit costs.

° Stage 2 Unit Cost Curves. xls Calculates the unit cost from the regression equations for each of the size categories and system types for technologies used by both LT2 and Stage2.

L. 2.4 Technology Selection Forecasts These files contain the technology selection percentages for Stage 1 and Stage 2 regulatory alternatives that are used in the Stage 2 Treatment Cost Model.

° Large SW Technology Selection. xls ° Large GW Technology Selection. xls Economic Analysis for the Stage 2 DBPR Proposal July 2003 L 4 ° Small SW Technology Selection. xls ° Small GW Technology Selection. xls ° Large GW Pre Stage 1 Ending ° Compliance Forecasts Model. xls This workbook contains a MACRO to produce all forecasts for the EA as presented in Chapters 3, 6, and Appendix D.

L. 2.5 Cost Models These files contain separate models for " treatment" and " non treatment" costs. The treatment cost model includes a Crystal Ball function to model the effect of uncertainty in unit treatment costs on national treatment costs. Non treatment costs include State and PWS costs for rule implementation, IDSE, additional routine monitoring, and significant excursions. The files included in this section are detailed below.

° Stage 2 Treatment Cost Model. xls This work book contains a " Crystal Ball" function to model uncertainty surrounding unit costs. Several macros are included to produce costs as well. The Cost_ results macro runs the Crystal Ball function for each regulatory and occurrence distribution option and creates the output files. The HH_ distribution macro generates the household cost results and the small systems distribution generates a distribution of small system costs.

° Stage 2 Non treatment Model. xls L. 2.6 Projections and Discounting These files use results from the treatment model ( cost uncertainty results), the non treatment cost model, and the rule activity schedule to project costs over a 25 year period. Calculates present value based on Yr 2000 dollars, and annualizes using 3 and 7 percent discount rates. The file in this section is detailed below.

° Cost Projections and Discounting Model. xls This workbook contains a MACRO to produce an excel workbook for each alternative including the two IDSE sensitivity analyses.

L. 2.7 National Costs These files contain the results as output by the cost models and as presented in the EA. The files are detailed below. Economic Analysis for the Stage 2 DBPR Proposal July 2003 L 5 ° Stage 2 EA Charts. xls This file produces output charts for the following chapters of the EA: 1, 3, 6, 7, 9. Includes national costs and summary of baseline parameters.

° Cost Uncertainty Results. xls Contains results of the Crystal Ball monte carlo simulation run from the Stage 2 Treatment Cost Model. xls for each regulatory alternative.

L. 2.8 Household Costs These files contain the result for household costs which are generated by a macro in the cost model. The file is detailed below.

° HH Distributions. xls L. 3 Benefits Exhibit L. 2 presents the flow chart of the Stage 2 benefits modeling process. The model consists of two parts. Part I estimates the number of annual bladder cancer cases avoided as a result of the Stage 2 DBPR. To generate this estimate, the model calculates the number of new bladder cancer cases per year attributable to DBPs ( based on estimates of Population Attributable Risk, PAR) prior to the Stage 1 DBPR. Bladder cancer cases avoided are calculated for both the Stage 1 rule and the Stage 2 regulatory alternatives using predicted changes in DBP occurrence. Results are adjusted to account for cessation lag and rule implementation schedule to produce an estimate of the average number of bladder cases avoided per year.

Part II of the model involves valuing the cases avoided. Distributions of value of statistical life and willingness to pay estimates are used to produce average results and 90 percent confidence bounds.

Input files include: ° DBP Summary Statistics. xls ° NRWA Plant Means ( weighted). xls ° last 12 months ICR Plant Means. xls ° Stage 2 Drivers. xls ( part of cost model) ° Stage 2 Rule activity Schedule ( part of the cost model) ° Compliance Forecast  all. xls ( part of the cost model)

Model files include: ° Stage 2 Valuation Inputs Model. xls ° Stage 2 Cases and Benefits Valuation Model. xls ( This workbook contains both Part I and II of the model as shown on the flow chart)

Results files include: ° Cancer Case Projections for Stage 2 ( for each regulatory alternative). xls ° Benefits Quantification for Stage 2 ( for each regulatory alternative). xls Economic Analysis for the Stage 2 DBPR Proposal July 2003 L 6 Cessation Lag Inputs SWAT Cancer Case Inputs STAGE 2 BENEFITS MODEL ( Part 1)

Case Projection Results Benefits Valuation Results DBP Occurrence Inputs Technology Selection Results Small System Survey Data ICR Data STAGE 2 BENEFITS MODEL ( Part 2) Valuation Inputs Baseline Data Inputs ( population data, rule schedule) Exhibit L. 2 Stage 2 DBPR Benefits Model Flow Chart Economic Analysis for the Stage 2 DBPR Proposal M 1 July 2003 Appendix M Quality Assurance Supplemental Information Existing Data Source Use for the Stage 2 DBPR Regulatory Development Effort Level 1 QA Plan? 2 Peer Reviewed? 2 1. Information Collection Rule ( ICR) Used to characterize occurrence of disinfectants, disinfection byproducts ( DBPs), and DBP precursors ( e. g., total organic carbon[ TOC]) in large surface water ( SW) and ground water ( GW) systems. Used as input to SWAT and the ICR Ground Water Delphi process. 2 Yes Yes 2. ICR Supplemental Survey Used to compare TOC occurrence in small, medium and large SW systems. 1 Yes Yes 3. National Rural Water Association ( NRWA) Survey Used to characterize operational characteristics, disinfection practices, DBP occurrence and occurrence of DBP precursors ( e. g., TOC) for small SW systems. DBP and DBP precursor data were compared to that of large systems. Used to assess variability in TTHM and HAA5 occurrence in distribution systems of small SW systems. 1 Yes No 4. Water Utility Survey ( WATER:\ STATS database) Used to compare operational characteristics, disinfection practices, DBP occurrence, and DBP precursor occurrence of medium and large SW systems and medium and large ground water GW systems 1 Yes Yes 5. Ground Water Supply Survey Used to compare TOC occurrence between small, medium, and large GW systems 1 Yes No 6. State Data Used to compare TTHM occurrence on small GW systems to occurrence in large GW systems. 1 No No Notes: 1. Level 1 data are those data that provide background information or context for a particular assessment or discussion, but are not deemed to be influential in EPA's decision making process. Level 2 data are those data that are deemed to be highly important or influential in EPA's decision making process. 2. See Sections 1.4 and 1.5 in the Stage 2 DBPR Occurrence Document ( USEPA 2003l) for a description of QA plans and/ or peer review processes for each existing data source shown.