Surface Water and Mixed NTNCWSs Disinfecting Ground Water Only NTNCWSs Exhibit H. 14b Non Treatment Cost Summary, Standard Nine Size Categories Economic Analysis for Stage 2 DBPR Proposal H 43 July 2003 H. 7 Rule Implementation and IDSE Activities for States/ Primacy Agencies States/ Primacy Agencies incur labor costs for adopting the regulation and developing a program for implementation, providing initial public notification, training State staff, training PWS staff, providing technical assistance, and updating their data management systems. Note that this EA does not include initial State costs for laboratory certification because EPA assumes that these activities occurred under the Stage 1 DBPR and were captured in the Stage 1 DBPR Regulatory Impact Analysis ( RIA) ( USEPA 1998a).

To estimate State/ Primacy Agency costs, the number of full time equivalents ( FTEs) required per activity is multiplied by the number of labor hours per FTE, the State/ Primacy Agency hourly wage, and the number of States/ Primacy Agencies. EPA estimated the number of FTEs required per activity based on experience implementing previous rules, such as the Stage 1 DBPR. The number of States/ Primacy Agencies is the sum of the 50 States, six territories, and one tribal government ( 57 total). Exhibit H. 15 presents the calculations and estimated costs and burden for these activities.

H. 8 IDSE Activities for States/ Primacy Agencies States/ Primacy Agencies will also incur costs as a result of the IDSE. EPA estimated the number of FTEs required per activity based on experience with previous rules, such as the Stage 1 DBPR. States/ Primacy Agencies are expected to work with the small systems that conduct IDSEs to review data and make compliance determinations. State/ Primacy Agency activities include analyzing IDSE reports and approving new or revised monitoring sites, responding to PWSs, and keeping records. Exhibit H. 15 shows the calculations and estimated costs and burden associated with the IDSE for States/ Primacy Agencies.

H. 9 Additional Routine Monitoring for States/ Primacy Agencies This section presents the costs for States/ Primacy Agencies to track data and update records for additional routine monitoring associated with the Stage 2 DBPR. Exhibit H. 15 provides detailed estimates of hours and calculated costs incurred by States/ Primacy Agencies. Economic Analysis for Stage 2 DBPR Proposal H 44 July 2003 Cost per Labor Hour FTEs per State Hours per State Cost per State National Total FTEs National Total Hours National Total Cost A B C= B* 2,080 D= A* C E= B* 57 F= C* 57 G= D* 57 Implementation Activities Public Notification 28.89 $ 0.10 208 6,009 $ 5.70 11,856 342,520 $ Regulation Adoption and Program Development 28.89 $ 0.50 1,040 30,046 $ 28.50 59,280 1,712,599 $ Training State Staff 28.89 $ 0.25 520 15,023 $ 14.25 29,640 856,300 $ Training PWS Staff and Technical Assistants 28.89 $ 1.00 2,080 60,091 $ 57.00 118,560 3,425,198 $

Updating Data Management System 28.89 $ 0.10 208 6,009 $ 5.70 11,856 342,520 $ Totals 1.95 4,056 117,178 $ 111.15 231,192 6,679,137 $

IDSE Activities Analyze PWS IDSE Report and Make Determinations 28.89 $ 1.00 2,080 60,091 $ 57.00 118,560 3,425,198 $ Consult with PWS 28.89 $ 1.00 2,080 60,091 $ 57.00 118,560 3,425,198 $ IDSE Recordkeeping 28.89 $ 0.25 520 15,023 $ 14.25 29,640 856,300 $ Totals 2.25 4,680 135,205 $ 128.25 266,760 7,706,696 $

Additional Routine Monitoring Activities Recordkeeping and Compliance Tracking 28.89 $ 0.10 208 6,009 $ 5.70 11,856 342,520 $ Totals 0.10 208 6,009 $ 5.70 11,856 342,520 $

Grand Totals 4.30 8,944 258,392 $ 245.10 509,808 14,728,353 $

Notes:

Sources: Detail may not added due to independent rounding.

( B) FTEs per State/ Primacy Agency based on EPA experience with previous regulations. All states/ primacy agencies are assumed to incur some costs for each activity.

1 FTE = 2,080 hours ( 40 hours/ week; 52 weeks/ year).

( A) State labor rates based on the State Workload Model, updated to year 2000 dollar values. Exhibit H. 15 State/ Primacy Agency Costs for Rule Implementation, IDSE, and Additional Routine Monitoring Economic Analysis for the Stage 2 DBPR Proposal I 1 July 2003 Appendix I Cost Implications for Alternative Monitoring Requirements and Alternative Approaches to Implementing the IDSE I. 1 Introduction This appendix discusses several alternative monitoring approaches and alterative approaches to IDSE implementation. The Stage 2 DBPR preamble requests comments on these issues.

I. 2 Implications of Alternative Population Based Monitoring Requirements for All Systems The Stage 2 Disinfectants and Disinfection Byproducts Rule ( DBPR) includes monitoring requirements that the Stage 2 Microbial Disinfectants/ Disinfection Byproducts ( M DBP) Federal Advisory Committee ( Stage 2 Federal Advisory Committees Act ( FACA)) recommended in the Agreement in Principle ( USEPA 2000n). Many of these monitoring requirements were based on those in the 1979 TTHM Rule and Stage 1 DBPR. For example, the frequency of monitoring under the Stage 1 DBPR should be influenced by source water type ( ground or surface water), size of system, and the number of plants per system. For the Stage 2 DBPR, as under the Stage 1 DBPR, the Stage 2 FACA recommended that both routine and additional disinfection byproduct ( DBP) sampling be required on a per plant basis. This recommendation is based on the assumption that as systems increase in size, they will tend to have more plants and increased complexity of water treatment and distribution, thereby warranting increased monitoring to represent DBP occurrence in the distribution system. The Stage 2 FACA also recommended higher frequency monitoring for systems using surface water than those using ground water because ground water tends to have lower and more stable concentrations of organic DBP precursors than surface water. Furthermore, since many ground water systems have multiple wells/ entry points drawing water from the same aquifer, the Stage 2 FACA recommended that these wells be considered as a single plant with the same monitoring requirements prescribed for one plant, if approved by the State.

Upon further analysis of the Stage 2 FACA recommendations, the Environmental Protection Agency ( EPA) has identified the following issues related to the monitoring requirements of the Stage 2 DBPR:

° Basing increased monitoring on numbers of water treatment plants per system, as opposed to population, may result in excessive or insufficient samples to represent DBP occurrence in the distribution system.

° The proposed sampling requirements for mixed systems ( i. e., those receiving disinfected surface water and ground water in their distribution system) may be excessive, depending upon the system's characteristics.

° The proposed monitoring requirements, based on additional samples per water treatment plant, pose unique implementation issues for systems with temporary supplies during the year. Economic Analysis for the Stage 2 DBPR Proposal I 2 July 2003 Section V( F)( 2) of the Stage 2 DBPR preamble describes these issues in detail and requests comment on them, particularly the significance of a plant based ( the proposed monitoring scheme) versus a population based monitoring approach ( monitoring requirements based on population and source type only). The purpose of this Appendix is to compare the estimated costs of the monitoring requirements for each approach. Appendix A of the Initial Distribution System Evaluation ( IDSE) guidance manual ( USEPA 2003p) also discusses different implications of using a plant versus population based approach.

I. 2.1 Summary of Alternative Population Based Monitoring Requirements The Stage 2 DBPR requires monitoring for ( 1) the IDSE and ( 2) routine compliance monitoring. With the population based approach, the proposed monitoring requirements for 100 percent purchasing systems would be applied to all systems. Exhibit I. 1 presents population based IDSE Standard Monitoring Program ( SMP) monitoring requirements for systems delivering surface water, in whole or in part and systems delivering only ground water, respectively. Exhibit I. 2 presents the number of Stage 2B routine samples required under the population based approach for systems using surface water in whole or part, and systems delivering ground water only. Specified sampling locations would be similar to those required under the plant based approach, reflecting the principles that the FACA recommended for capturing sites with high TTHM and HAA5 levels. Economic Analysis for the Stage 2 DBPR Proposal I 3 July 2003 Exhibit I. 1 Summary of IDSE SMP Requirements for 100 Percent Purchasing Systems1, Population Based Approach System Size ( Population Served) Number of Distribution System Sites2 ( by location type) per System Total Number of Sites per System Monitoring Frequency for the 1 year IDSE period3 Near Entry Point Average Residence Time High TTHM High HAA5 Systems Using Surface Water in Whole or in Part4 < 500   1 1 2 Every 180 days 500  4,999   1 1 2 Every 90 days 5,000  9,999  1 2 1 4 Every 90 days 10,000  24,999 1 2 3 2 8 Every 60 days 25,000  49,999 2 3 4 3 12 Every 60 days 50,000  99,999 3 4 5 4 16 Every 60 days 100,000  499,999 4 6 8 6 24 Every 60 days 500,000  < 1.5 million 6 8 10 8 32 Every 60 days 1.5 million  < 5 million 8 10 12 10 40 Every 60 days > 5 million 10 12 14 12 48 Every 60 days Systems Using Only Ground Water < 500   1 1 2 Every 180 days 500  9,999   1 1 2 Every 90 days 10,000  99,999 1 1 2 2 6 Every 90 days 100,000  499,999 1 1 3 3 8 Every 90 days > 500,000 2 2 4 4 12 Every 90 days 1 100 percent purchasing systems buy or otherwise receive all of their finished water from one or more wholesale systems year round. 2 A dual sample set must be collected at each location. A dual sample set is one TTHM and one HAA5 sample that is taken at the same time and location.

3 Monitoring frequency is the approximate number of days between monitoring events.

4 For the purposes of this EA, " surface water" systems are equivalent to " subpart H" systems and include systems that provide ground water under the direct influence of surface water ( GWUDI). Economic Analysis for the Stage 2 DBPR Proposal I 4 July 2003 Exhibit I. 2 Summary of Stage 2B Monitoring Requirements for 100 Percent Purchasing Systems1, Population Based Approach System Size ( Population Served) Number of Distribution System Sites2 ( by location type) per System Total Number of Sites per System Monitoring Frequency3 Existing Stage 1 Compliance Sites Highest TTHM Highest HAA5 Systems Using Surface Water in Whole or in Part4 < 500  1 1 25 Every 365 days 500  4,999  1 1 25 Every 90 days 5,000  9,999  1 1 2 Every 90 days 10,000  24,999 1 2 1 4 Every 90 days 25,000  49,999 1 3 2 6 Every 90 days 50,000  99,999 2 4 2 8 Every 90 days 100,000  499,999 3 6 3 12 Every 90 days 500,000  1,499,999 4 8 4 16 Every 90 days 1.5 million  < 5 million 5 10 5 20 Every 90 days > 5 million 6 12 6 24 Every 90 days Systems Using Only Ground Water < 500  1 1 25 Every 365 days 500  9,999  1 1 2 Every 365 days 10,000  99,999 1 2 1 4 Every 90 days 100,000  499,999 1 3 2 6 Every 90 days > 500,000 2 4 2 8 Every 90 days 1 100 percent purchasing systems buy or otherwise receive all of their finished water from one or more wholesale systems year round. 2 A dual sample set must be collected at each location. A dual sample set is one TTHM and one HAA5 sample that is taken at the same time and location. 3 Monitoring frequency is the approximate number of days between monitoring events.

4 For the purposes of this EA, " surface water" systems are equivalent to " subpart H" systems and include systems that provide GWUDI. 5 Only one location per system is required if the highest TTHM and HAA5 levels occur at a same location. Economic Analysis for the Stage 2 DBPR Proposal I 5 July 2003 I. 2.2 Comparison of the Plant Based Approach to the Population Based Approach This section compares the current plant based monitoring approach to the proposed populationbased monitoring approach. To quantify the implications of promulgating a population based instead of a plant based monitoring scheme, EPA estimated IDSE and additional routine monitoring costs for both monitoring schemes. This section presents IDSE cost estimates and additional routine monitoring cost estimates, respectively.

Under a plant based monitoring approach, the number of plants that deliver disinfected water to a system's distribution system determines the number of required sampling sites. Some systems that use the plant based monitoring approach, depending upon their size, the number of treatment plants, and the nature of their distribution system, may be required to collect relatively large or small numbers of TTHM and HAA5 samples. The number of samples may be excessive or insufficient to adequately represent occurrence since some large systems have very few large plants while other much smaller systems have many small plants. For example, in EPA's inventory of public water systems ( PWSs), there are some systems with only one plant serving more than 1 million people, whereas other systems serving fewer than 100,000 people have many water treatment plants, particularly those using ground water.

Under a population based monitoring approach, only the system population and source water type determine the numbers of IDSE and routine samples taken. This approach is already being proposed for systems that purchase 100 percent of their finished water, but it would have larger implications if applied to all systems. States would not be required to make common aquifer determinations, address temporary sources, or determine whether plants are combined into a single pipe prior to entering the distribution system. Under a population based monitoring approach, systems would not be required to conduct an IDSE if all their samples under Stage 1 DBPR were less than or equal to 40 µ g/ L and 30 µ g/ L for TTHMs and HAA5, respectively. However, they may still have to select new Stage 2B sites if the required number of Stage 2B monitoring sites is greater than the number of Stage 1 DBPR sites. Overall, the population based monitoring approach may provide more accurate numbers of samples necessary to efficiently monitor TTHM and HAA5 levels.

Implications for IDSE SMP National Costs Appendix H describes the IDSE requirements and presents the estimated costs for the proposed monitoring scheme ( referred to as the plant based approach). Changing the IDSE and Stage 2B monitoring requirements from the plant based approach to the population based approach for all systems affects ( 1) systems conducting the SMP to fulfill the IDSE requirements and ( 2) systems waived from IDSE requirements but have more monitoring sites required for Stage 2B than for Stage 1. Note that the estimated number of systems waived from performing an IDSE does not change between monitoring approaches.

For those systems estimated to conduct the SMP ( approximately 23 percent of the total systems), the number of samples required and the associated costs varies between the plant and population based approaches. Exhibit I. 3 shows the estimated difference in total samples under each approach. Under the population based approach, the total number of required samples for the SMP is estimated to be much less ( by 56,543 samples) than the total number of SMP samples for the plant based approach. Economic Analysis for the Stage 2 DBPR Proposal I 6 July 2003 Plant Based Approach Population Based Approach Total Samples No. of Systems Conducting IDSE SMP Number of Dual Samples/ System Total Samples A B C D = B* C E = D A Surface Water and Mixed CWSs £   5 0 0 3,437 744 4 2,976  461 500 4,999 37,809 4,181 8 33,448  4,361 5,000 9,999 14,828 1,007 16 16,112 1,284 10,000 24,999 71,472 951 48 45,648  25,824 25,000 49,999 48,149 518 72 37,296  10,853 50,000 99,999 35,789 258 96 24,768  11,021 100,000 499,999 27,792 193 144 27,792 0 500,000 1,499,999 7,450 28 192 5,376  2,074 1.5 M  < 5 M 1,392 5 240 1,200  192 £   5   M 278 1 288 288 10 TOTAL 248,395 7,886 194,904  53,491 Disinfecting Ground Water CWSs £   5 0 0 3,292 595 4 2,380  912 500 9,999 9,850 1,358 8 10,864 1,014 10,000 99,999 8,286 243 24 5,832  2,454 100,000 499,999 1,220 16 32 512  708 500,000 1,499,999 0 0 48 0 0 1.5 M  < 5 M 79 1 48 48  31 £   5   M 0 0 48 0 0 TOTAL 22,728 2,213 19,636  3,092 Surface Water and Mixed NTNCWSs £ 5 0 0 N/ A N/ A N/ A N/ A N/ A 500 4,999 N/ A N/ A N/ A N/ A N/ A 5,000 9,999 N/ A N/ A N/ A N/ A N/ A 10,000 24,999 192 4 48 192 0 25,000 49,999 264 4 72 288 24 50,000 99,999 96 1 96 96 0 100,000 499,999 144 1 144 144 0 500,000 1,499,999 0 0 192 0 0 1.5 M  < 5 M 0 0 240 0 0 £   5   M 0 0 288 0 0 TOTAL 696 10 720 24 Disinfecting Ground Water NTNCWSs £ 5 0 0 N/ A N/ A N/ A N/ A N/ A 500 9,999 N/ A N/ A N/ A N/ A N/ A 10,000 99,999 8 1 24 24 16 100,000 499,999 0 0 32 0 0 500,000 1,499,999 0 0 48 0 0 1.5 M  < 5 M 0 0 48 0 0 £   5   M 0 0 48 0 0 TOTAL 8 1 24 16 Grand Total 271,827 10,110 215,284  56,543 Note:

Sources:

( C) Number of IDSE samples per system based on rule requirements for conducting IDSE monitoring ( population based approach for 100 percent purchasing systems). ( A) Derived by adding the total number of samples for 100 percent purchasing and producing systems in Exhibit H. 5a and H. 5b. Size Category Change in Number of Samples Detail may not add due to independent rounding.

( B) The total number of systems conducting an IDSE is derived by adding the number of 100 percent purchasing systems conducting an IDSE from Exhibit H. 4a, column E and the number of producing systems conducting an IDSE from Exhibit H. 4b, column E. Exhibit I. 3 Number of Samples Required for IDSE SMP Under Plant and Population Based Monitoring Economic Analysis for the Stage 2 DBPR Proposal I 7 July 2003 To compare costs, the total IDSE SMP cost under the population based approach was first estimated in Exhibit I. 4. In addition to changes in IDSE SMP costs, there may also be changes in costs for systems not performing the SMP or system specific study ( SSS). The number of sampling sites for those systems may increase or decrease from Stage 1 DBPR to Stage 2B DBPR requirements. If the number of samples decreases, the system would eliminate sites according to the lowest DBP concentrations. If the number of samples increases, the system must pick new monitoring sites, which will incur a small cost for labor. Exhibit I. 5 shows the number of systems not conducting an IDSE which are estimated to have additional routine monitoring sites and the associated costs for selecting new sites under the population based approach.

Exhibit I. 6 compares the total IDSE costs for the plant based approach ( derived in Appendix H) to the total IDSE cost for the population based approach ( Exhibits I. 4 and I. 5, plus SSS costs from Exhibit H. 6). There is no change in SSS costs from plant based to population based approach.

Implications for Additional Routine Monitoring National Costs Similar to the IDSE SMP, the number of samples required for additional routine monitoring and the associated costs under the plant and population based approaches varies. Exhibit I. 7 shows that 28,229 fewer samples would be required under the population based approach, as compared to the plantbased approach. Exhibit I. 8 shows the breakdown of additional routine monitoring costs under the population based approach. As seen in Exhibit I. 9, it would cost approximately $ 6.9 million less to conduct additional routine monitoring under the population based approach, as compared to those taken under the plant based approach. Economic Analysis for the Stage 2 DBPR Proposal I 8 July 2003 Number of Dual Samples per System Hours per Sample Sampling Cost per Labor Hour Laboratory Cost per Sample Site Selection Hours per System Reporting Hours per System Site Selection/ Reporting Cost per Labor Hour A B C D E F G H I= A*( B*( C* D+ E)+ H* ( F+ G))

744 4 1 24.96 $ 220 4 2 24.96 $ 840,422 $

4,181 8 1 24.96 $ 220 4 2 28.95 $ 8,919,662 $ 1,007 16 1 24.96 $ 220 4 2 28.95 $ 4,121,711 $ 951 48 1 24.96 $ 220 4 4 28.95 $ 11,402,186 $ 518 72 1 24.96 $ 220 8 4 28.95 $ 9,315,981 $ 258 96 1 24.96 $ 220 8 8 28.95 $ 6,186,675 $

193 144 1 24.96 $ 220 12 12 28.95 $ 6,942,025 $ 28 192 1 24.96 $ 220 16 24 28.95 $ 1,349,329 $ 5 240 1 24.96 $ 220 20 24 28.95 $ 300,321 $ 1 288 1 24.96 $ 220 24 24 28.95 $ 71,938 $ 7,886 49,450,250 $

595 4 1 24.96 $ 220 4 2 24.96 $ 672,112 $ 1,358 8 1 24.96 $ 220 4 2 28.95 $ 2,897,130 $ 243 24 1 24.96 $ 220 8 8 28.95 $ 1,541,164 $ 16 32 1 24.96 $ 220 12 12 28.95 $ 136,536 $

0 48 1 24.96 $ 220 16 24 28.95 $  $ 1 48 1 24.96 $ 220 20 24 28.95 $ 13,032 $ 0 48 1 24.96 $ 220 24 24 28.95 $  $ 2,213 5,259,975 $

N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A 4 48 1 24.96 $ 220 4 4 28.95 $ 47,959 $ 4 72 1 24.96 $ 220 8 4 28.95 $ 71,938 $ 1 96 1 24.96 $ 220 8 8 28.95 $ 23,979 $

1 144 1 24.96 $ 220 12 12 28.95 $ 35,969 $ 0 192 1 24.96 $ 220 16 24 28.95 $  $ 0 240 1 24.96 $ 220 20 24 28.95 $  $ 0 288 1 24.96 $ 220 24 24 28.95 $  $ 10 179,845 $

Disinfecting Ground Water NTNCWSs N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A 1 24 1 24.96 $ 220 8 8 28.95 $ 6,342 $ 0 32 1 24.96 $ 220 12 12 28.95 $  $

0 48 1 24.96 $ 220 16 24 28.95 $  $ 0 48 1 24.96 $ 220 20 24 28.95 $  $ 0 48 1 24.96 $ 220 24 24 28.95 $  $ 1 6,342 $

10,110 54,896,412 $

Notes:

Sources: Grand Totals Detail may not add due to independent rounding. Shaded areas represent systems that are not subject to IDSE requirements. ( A) From Exhibit I. 3, column B.

( F and G) Labor hours for site selection and reporting based on expert opinion received during regulatory development process. ( H) Site selection and reporting labor rates estimated based on labor rates from the Bureau of Labor Statistics ( 2000). An 80: 20 split between technical and managerial labor rates was assumed, except for systems serving 500 or fewer people, for which only a technical rate was applied. 500,000 1,499,999 1.5 M  < 5 M ³ 5   M National Totals ( C) Labor hours per sample reflects EPA estimate. ( D) Sampling labor rates estimated based on technical labor rates from the Bureau of Labor Statistics ( 2000). ( B) Number of IDSE samples per system based on rule requirements for conducting IDSE monitoring ( population based approach for 100 percent purchasing systems).

( E) Laboratory cost for TTHM and HAA5 analyses per sample based on costs incurred for the ICR. < 500 500 9,999 10,000 99,999 100,000 499,999 500,001 1,499,999 1.5 M  < 5 M ³ 5   M National Totals 10,000 24,999 25,000 49,999 50,000 99,999 100,000 499,999 Surface Water and Mixed NTNCWSs < 500 500 4,999 5,000 9,999 500,000 1,499,999 1.5 M  < 5 M ³ 5   M National Totals < 500 500 9,999 10,000 99,999 100,000 499,999 1.5 M  < 5 M ³ 5   M National Totals Disinfecting Ground Water CWSs 25,000 49,999 50,000 99,999 100,000 499,999 500,001 1,499,999 < 500 500 4,999 5,000 9,999 10,000 24,999 Surface Water and Mixed CWSs Size Category No. of Systems Conducting IDSE SMP Sampling Site Selection Total Cost Exhibit I. 4 National IDSE SMP Costs For Population Based Monitoring Approach Economic Analysis for the Stage 2 DBPR Proposal I 9 July 2003 Systems Qualifying for 40/ 30 Waiver but Adding Stage 2B site( s) Hours per System Number of Systems Receiving 40/ 30 Waiver Reporting Hours per System A B C D E F = ( A* B+ C* D)* E G = A* B+ C* D H = G/ 2,080  1 81 1 28.95 $ 2,345 $ 81 0.0 474 3 474 1 28.95 $ 54,889 $ 1,896 0.9 123 3 123 1 28.95 $ 14,243 $ 492 0.2  8 155 1 28.95 $ 4,487 $ 155 0.1  8 85 1 28.95 $ 2,461 $ 85 0.0  8 44 2 28.95 $ 2,548 $ 88 0.0  8 35 3 28.95 $ 3,040 $ 105 0.1  8 5 6 28.95 $ 869 $ 30 0.0  8 1 6 28.95 $ 174 $ 6 0.0  8  6 28.95 $  $   National Total 597 1,003 85,055 $ 2,938 1.4  1 4,192 1 28.95 $ 121,358 $ 4,192 2.0 10,162 3 10,162 1 28.95 $ 1,176,760 $ 40,648 19.5 1,130 8 1,130 2 28.95 $ 327,135 $ 11,300 5.4  8 38 3 28.95 $ 3,300 $ 114 0.1  8 5 6 28.95 $ 869 $ 30 0.0  8  6 28.95 $  $    8  6 28.95 $  $   National Total 11,292 15,527 1,629,422 $ 56,284 27.1 N/ A N/ A   N/ A N/ A N/ A N/ A N/ A N/ A   N/ A N/ A N/ A N/ A N/ A N/ A   N/ A N/ A N/ A N/ A  8  1 28.95 $  $   1 8 1 1 28.95 $ 261 $ 9 0.0  8  2 28.95 $  $    8  3 28.95 $  $    8  6 28.95 $  $    8  6 28.95 $  $    8  6 28.95 $  $   National Total 1 1 261 $ 9 0.0 N/ A N/ A   N/ A N/ A N/ A N/ A N/ A N/ A   N/ A N/ A N/ A N/ A 4 8 4 2 28.95 $ 1,158 $ 40 0.0  8 1 3 28.95 $ 87 $ 3 0.0  8  6 28.95 $  $    8  6 28.95 $  $    8  6 28.95 $  $   National Total 4 5 1,245 $ 43 0.0 Grand Totals 11,894 16,536 1,715,982 $ 59,274 28.5 Notes:

Sources: Total Cost Total Burden ( Hours) Total Burden ( FTEs)

Surface Water and Mixed CWSs Size Category Selecting additional sites Preparing IDSE Report Cost per Labor Hour < 500 500 4,999 5,000 9,999 10,000 24,999 25,000 49,999 50,000 99,999 100,000 499,999 500,000 1,499,999 1.5 M  < 5 M ³   5   M Disinfecting Ground Water Only CWSs < 500 500 9,999 10,000 99,999 100,000 499,999 500,000 1,499,999 1.5 M  < 5 M ³ 5   M Surface Water and Mixed NTNCWSs < 500 500 4,999 5,000 9,999 10,000 24,999 25,000 49,999 50,000 99,999 100,000 499,999 500,000 1,499,999 1.5 M  < 5 M ³ 5   M Disinfecting Ground Water Only NTNCWSs < 500 500 9,999 10,000 99,999 100,000 499,999 500,000 1,499,999 1.5 M  < 5 M ³ 5   M Detail may not add due to independent rounding.

Shaded areas represent systems that are not subject to IDSE requirements.

1 FTE= 2,080 hours ( 40 hours/ week; 52 weeks/ year).

( E) Labor rates from the Bureau of Labor Statistics. An 80: 20 split between technical and managerial labor rates was assumed, except for systems serving 500 or fewer people, for which only a technical rate was applied. ( A) Number of systems below 40/ 30 from Exhibit H. 4a ( column F) for only those system size categories that are predicted to have additional routine monitoring from Stage 1 to Stage 2b ( see Exhibit H. 8a, column D). ( B) Hours per system required to select new sites for Stage 2B based on expert opinion. ( C) Number of systems that qualify for a 40/ 30 waiver from Exhibit H. 4a, column F.

( D) Reporting hours are a fraction of reporting hours estimated for IDSE monitoring ( Exhibit H. 5a, column G). For systems serving < 10,000 , reporting hours for systems receiving a 40/ 30 waiver are estimated to be 1/ 2 that of reporting hours for systems conducting the IDSE SMP. For systems serving > 10,000, reporting hours for systems receiving a 40/ 30 waiver are estimated to be 1/ 4 that of reporting hours for systems conducting the IDSE SMP. Exhibit I. 5 Costs for Systems Not Conducting the IDSE Under Population Based Monitoring Approach Economic Analysis for the Stage 2 DBPR Proposal I 10 July 2003 Producing Systems 100% Purchasing Systems Total A B C = A+ B D E = D C CWS $ 42,370,160 $ 20,237,576 $ 62,607,736 $ 49,571,203 $ 13,036,533 NTNCWS $ 36,085 $ 138,142 $ 174,227 $ 180,106 $ 5,879 Total SW $ 42,406,245 $ 20,375,718 $ 62,781,963 $ 49,751,309 $ 13,030,654 CWS $ 6,202,621 $ 368,671 $ 6,571,291 $ 6,891,712 $ 320,421 NTNCWS $ 2,683 $ 290 $ 2,973 $ 7,587 $ 4,614 Total GW $ 6,205,304 $ 368,960 $ 6,574,264 $ 6,899,299 $ 325,035 $ 48,611,549 $ 20,744,678 $ 69,356,227 $ 56,650,609 $ 12,705,618 Note: Sources: Detail may not add due to independent rounding. ( A) Derived by adding Exhibit H. 5a, column I, Exhibit H. 6a, column D, and Exhibit H. 7a, column F. ( B) Derived by adding Exhibit H. 5b, column J, Exhibit H. 6b, column D, and Exhibit H. 7b, column D. ( D) Derived from Exhibit I. 4, column I, Exhibit I. 5, column F, and Exhibits H. 6a& b, column D. Estimated Costs for the Revised Population Based Monitoring Requirements for the IDSE Change in Cost TOTAL Estimated Costs for IDSE Surface Water Ground Water System Type Exhibit I. 6 Comparison of National IDSE Costs Under Plant and Population Based Monitoring, by System Type Economic Analysis for the Stage 2 DBPR Proposal I 11 July 2003 Plant Based Approach Population Based Approach Stage 2B Sampling Systems Performing the IDSE Systems Not Performing the IDSE Total Plants Routine Samples per Plant No. of Systems Performing the IDSE Routine Samples per System Percent of Systems with Reduced Sample Sites Total Systems Routine Samples per System Percent of Systems with Reduced Sample Sites A B C D E F G H I J = ( D* E*( 1 F)+ D* E/ 2* F)+( G* H*( 1 I)+ G* H/ 2* I) B* C K = J A Surface Water and Mixed CWSs £ 5 0 0  209 4,621 1 744 2 56% 2,557 2 75%  357  148 500 4,999 5,737 6,052 4 4,181 8 56% 474 8 75% 2,165  3,571 5,000 9,999 2,340 1,921 4 1,007 8 0% 123 8 0% 1,356  984 10,000 24,999  7,680 2,210 16 951 16 0% 154 16 0%  17,680  10,000 25,000 49,999  2,536 1,324 16 518 24 0% 84 24 0%  6,742  4,206 50,000 99,999  2,576 1,074 16 258 32 0% 58 32 0%  7,078  4,502 100,000 499,999 0 750 16 193 48 0% 57 48 0% 0 0 500,000 1,499,999  144 209 16 28 64 0% 8 64 0%  1,037  893 1.5 M  < 5 M 0 41 16 5 80 0% 2 80 0%  90  90 £   5   M 0 6 16 1 96 0% 0 96 0% 3 3 National Totals  5,069  29,460  24,391 Disinfecting Ground Water CWSs £ 5 0 0  36 26,810 1 595 2 46% 18,555 2 65%  847  811 500 9,999 7,351 20,736 1 1,358 2 0% 10,162 2 0% 2,303  5,048 10,000 99,999 9,248 5,904 1 243 16 0% 1,130 16 0% 16,067 6,819 100,000 499,999 780 554 4 16 24 0% 40 24 0%  865  1,645 500,000 1,499,999 68 50 4  32 0% 5 32 0%  39  107 1.5 M  < 5 M 20 10 4 1 32 0% 0 32 0%  8  28 £   5   M 0  4  32 0% 0 32 0% 0 0 National Totals 17,431 16,612  818 Surface Water and Mixed NTNCWSs £ 5 0 0 0 581 1  2 100% 581 2 100% 0 0 500 4,999 0 218 4  8 100% 218 8 100% 0 0 5,000 9,999 24 11 4  8 0% 11 8 0% 44 20 10,000 24,999 0 4 16 4 16 0% 0 16 0% 0 0 25,000 49,999 32 5 16 4 24 0% 1 24 0% 40 8 50,000 99,999 16 1 16 1 32 0% 0 32 0% 16 0 100,000 499,999 32 1 16 1 48 0% 0 48 0% 32 0 500,000 1,499,999 0  16  64 0% 0 64 0% 0 0 1.5 M  < 5 M 0  16  80 0% 0 80 0% 0 0 £   5   M 0  16  96 0% 0 96 0% 0 0 National Totals 104 132 28 Disinfecting Ground Water NTNCWSs £ 5 0 0 0 6,180 1  2 100% 6,180 2 100% 0 0 500 9,999 8 1,117 1  2 0% 1,117 2 0% 1,116 1,108 10,000 99,999 15 5 1 1 16 0% 4 16 0% 78 63 100,000 499,999 0 1 4  24 0% 1 24 0% 14 14 500,000 1,499,999 0  4  32 0% 0 32 0% 0 0 1.5 M  < 5 M 0  4  32 0% 0 32 0% 0 0 £   5   M 0  4  32 0% 0 32 0% 0 0 National Totals 23 1,208 1,185 Grand Totals 12,489  11,507  23,996 Note:

Sources:

( I) Percentage of plants with reduced sample sites based on analysis of Information Collection Rule and NRWA data, percent of systems that do have a detectable residual at all sample locations. Change in Samples from Stage 1 to Stage 2 Change in Number of Samples from Plant based to Population based Approach Detail may not add due to independent rounding.

( A) Derived by adding the number of additional samples from Exhibit H. 8a, column M and Exhibit H. 8b, column I times column J. Stage 1 Sampling ( B) Derived for Exhibit H. 2, columns G and I.

( C) Based on Stage 1 rule requirements. Change in Samples from Stage 1 to Stage 2 ( G) Derived from Exhibit I. 5, column A. Size Category ( D) Derived from Exhibit I. 4, column A. ( E) & ( H) Number of routine samples per system based on Stage 2B rule requirements ( population based approach for 100 percent purchasing systems). Number of samples may be less for SW systems serving < 500 and GW systems serving < 10,000 if high TTHM and HAA5 locations are the same. ( F) Estimated percent of systems that will have only one sampling site because their high TTHM and HAA5 site occur at the same location based on analysis of Information Collection Rule data from 4 distribution system locations ( See "% same location" sheet in the Stage 2 non treatment cost model. xls). Exhibit I. 7 Number of Samples Required for Additional Routine Monitoring Under Plant and Population Based Monitoring Approach Economic Analysis for the Stage 2 DBPR Proposal I 12 July 2003 A B C D E = A*( B* C+ D)

Surface Water CWSs ( 357) 1 24.96 $ 220 $ ( 87,549) $

2,165 1 24.96 $ 220 $ 530,434 $ 1,356 1 24.96 $ 220 $ 332,166 $

( 17,680) 1 24.96 $ 220 $ ( 4,330,893) $

( 6,742) 1 24.96 $ 220 $ ( 1,651,618) $

( 7,078) 1 24.96 $ 220 $ ( 1,733,925) $

 1 24.96 $ 220 $  $

( 1,037) 1 24.96 $ 220 $ ( 253,975) $ ( 90) 1 24.96 $ 220 $ ( 21,948) $

3 1 24.96 $ 220 $ 784 $

National Totals ( 29,460) ( 7,216,525) $

Disinfecting Ground Water CWSs ( 847) 1 24.96 $ 220 $ ( 207,395) $

2,303 1 24.96 $ 220 $ 564,210 $

16,067 1 24.96 $ 220 $ 3,935,893 $

( 865) 1 24.96 $ 220 $ ( 211,804) $

( 39) 1 24.96 $ 220 $ ( 9,653) $

( 8) 1 24.96 $ 220 $ ( 1,862) $  1 24.96 $ 220 $  $

National Totals 16,612 4,069,388 $

Surface Water NTNCWSs  1 24.96 $ 220 $  $

 1 24.96 $ 220 $  $ 44 1 24.96 $ 220 $ 10,778 $

 1 24.96 $ 220 $  $

40 1 24.96 $ 220 $ 9,798 $

16 1 24.96 $ 220 $ 3,919 $

32 1 24.96 $ 220 $ 7,839 $

 1 24.96 $ 200 $  $  1 24.96 $ 200 $  $

 1 24.96 $ 200 $  $

National Totals 132 32,335 $

Disinfecting Ground Water NTNCWSs 0 1 24.96 $ 220 $ 118 $

1,116 1 24.96 $ 220 $ 273,454 $

78 1 24.96 $ 220 $ 19,077 $

14 1 24.96 $ 220 $ 3,371 $

 1 24.96 $ 220 $  $  1 24.96 $ 220 $  $

 1 24.96 $ 220 $  $

National Totals 1,208 296,019 $

Grand Totals ( 11,507) ( 2,818,782) $

Notes: Detail may not add to totals due to independent rounding.

Sources: ( A) Number of samples from Exhibit I. 7.

( B) Labor hours per sample reflects EPA estimate. ( C) Sampling labor rates estimated based on technical labor rates recommended by a Technical Design Panel. ( D) Laboratory cost for TTHM and HAA5 analyses per sample based on costs incurred for the ICR. 100,000 499,999 500,000 1,499,999 1.5 M  < 5 M ³ 5   M 1.5 M  < 5 M ³ 5   M < 500 500 9,999 10,000 99,999 100,000 499,999 500,000 1,499,999 25,000 49,999 50,000 99,999 < 500 500 4,999 5,000 9,999 10,000 24,999 100,000 499,999 500,000 1,499,999 1.5 M  < 5 M ³ 5   M 10,000 99,999 500,000 1,499,999 1.5 M  < 5 M ³ 5   M 50,000 99,999 100,000 499,999 < 500 500 9,999 10,000 24,999 25,000 49,999 Size Category < 500 500 4,999 5,000 9,999 Total Cost Additional Samples Required for Stage 2B Monitoring Hours per Sample Sampling Cost per Labor Hour Cost per Sample Exhibit I. 8 National Additional Routine Monitoring Costs For Population Based Monitoring Approach 1 Systems are on a large system implementation schedule if any system in their combined distribution system ( the combined distribution system includes wholesale systems and all consecutive systems) serves at least 10,000 people.

2 Systems are on a small system implementation schedule as long as all systems in their combined distribution system ( the combined distribution system includes all consecutive systems) serve less than 10,000 people.

Economic Analysis for the Stage 2 DBPR Proposal I 13 July 2003 Producing Systems 100% Purchasing Systems Total A B C = A+ B D E = D C CWS $ 1,525,611 $ 2,767,210 $ 1,241,599 $ 7,216,525 $ 5,974,926 NTNCWS $ 0 $ 25,476 $ 25,476 $ 32,335 $ 6,859 Total SW $ 1,525,611 $ 2,741,734 $ 1,216,123 $ 7,184,190 $ 5,968,067 CWS $ 4,142,029 $ 127,843 $ 4,269,872 $ 4,069,388 $ 200,483 NTNCWS $ 0 $ 5,634 $ 5,634 $ 296,019 $ 290,385 Total GW $ 4,142,029 $ 133,477 $ 4,275,506 $ 4,365,408 $ 89,902 $ 5,667,640 $ 2,608,257 $ 3,059,382 $ 2,818,782 $ 5,878,164 Note: Sources: ( A) Derived from Exhibit H. 8a. ( B) Derived from Exhibit H. 8b. ( D) Derived from Exhibit I. 8, column G. Change in Cost Surface Water Ground Water Detail may not add due to independent rounding. TOTAL Estimated Costs for Existing Additional Routine Monitoring Requirements Estimated Costs for the Revised Population Based Monitoring Requirements for Additional Routine Monitoring ( Total)

System Type Exhibit I. 9 Comparison of National Additional Routine Monitoring Costs Under Plant and Population Based Monitoring, by System Type I. 3 Implications of Alternative IDSE Implementation Schedule Under the proposed schedule for the Stage 2 DBPR, States will not have primacy by the time many systems commence IDSE activities. EPA is requesting comment on delaying implementation deadlines for the IDSE to reduce the burden on systems and EPA Regions and increase the technical involvement of the States. The delay being considered is a 2 year delay, meaning that systems on the large system implementation schedule1 will submit their IDSEs 4 years after rule promulgation, and systems on a small implementation schedule2 will submit their IDSEs 6 years after rule promulgation.

Implications on IDSE System Costs EPA has concluded there would be no measurable impact on the nominal estimate of IDSE system costs due to a dely in IDSE implementation schedule; however, there would be a change in the cost estimate. The total one time costs of the IDSE ( derived as the sum of Exhibits H. 5a& b, H. 6a& b, and H. 7a& b) is estimated to be $ 69.4 million. There may be a slight deviation for the alternative IDSE implementation schedule due to a change in the percent of 100 percent purchasing systems that qualify for the 40/ 30 certification ( the percent of these systems expected to qualify for the certification in the current analysis is based on observed data which was reduced for the preferred regulatory alternative since many were not expected to have 2 years of data to demonstrate that all samples were under 40 : g/ L for TTHM Economic Analysis for the Stage 2 DBPR Proposal I 14 July 2003 and 30 : g/ L for HAA5). This slight change in percentage, however, is expected to have a very minor impact on total national costs ( EPA assumes no change in costs).

The annualized cost for the IDSE will change if the implementation schedule is delayed. Exhibit I. 10a shows the estimate of when systems will incur IDSE costs for the preferred regulatory alternative ( this is equivalent to Exhibit D. 4). Exhibit I. 10b shows when systems are expected to incur costs for the IDSE under the alternative implementation schedule. To calculate annualized costs, nominal costs of the IDSE ( estimated at $ 69.4 million) are used to populate the IDSE schedule. Nominal cost results are shown in Exhibits I. 11a and I. 11b for the preferred regulatory alternative and the IDSE alternative implementation schedule, respectively. Exhibits I. 12a and I. 12b show results discounted to year 2000 dollars based on a 3 percent discount rate. Note that the total annualized cost for the IDSE is reduced from $ 3.56 million per year for the preferred regulatory alternative ( Exhibit I. 12a) to $ 3.36 million per year for the IDSE alternative implementation schedule ( Exhibit I. 12b), a difference of $ 0.20 million per year.

I. 4 Implication of IDSE Replaced with Increased Monitoring EPA is considering eliminating the IDSE completely and replacing it with increased compliance monitoring during the first year of compliance monitoring, with routine sites after the first year based on the increased compliance monitoring ( similar to the process in the IDSE report). The compliance schedule remains the same. Increased monitoring would generally be equivalent to Stage 1 compliance monitoring plus IDSE monitoring ( e. g., for subpart H >= 10k, 4 samples/ plant/ quarter ( Stage 1) plus 8 samples/ plant/ quarter ( IDSE, modified from 8 samples/ plant/ every two months) for a total of 12 samples/ plant/ quarter), with the additional sites chosen using a selection procedure based on guidance equivalent to that for selection of IDSE monitoring locations. Compliance must be achieved at all locations. Systems could conduct something similar to the IDSE to identify their routine monitoring sites prior to having to conduct increased compliance monitoring; if State approved, systems would start on routine monitoring rather than increased monitoring.

Costs for this alternative are assumed to be identical to those presented in section I. 3 ( assuming that increased monitoring during the first year of compliance monitoring is comparable to the IDSE). Economic Analysis for the Stage 2 DBPR Proposal I 15 July 2003 Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs 2003 38% 50% 14% 50%  50%  50% 2004 38% 50% 14% 50%  50%  50% 2005         2006 24%  73%  100%  100%  2007         2008         2009         2010         2011         2012         2013         2014         2015         2016         2017         2018         2019         2020         2021         2022         2023         2024         2025         2026         2027

Source: Derived from rule implementation schedule. Year Surface Water Systems The schedule for small surface water systems has been adjusted to account for small 100% purchasing systems that purchase water from a large system and are, thus, on the large surface water system schedule for implementation and IDSE activities. Based on analysis of SDWIS data in Appendix B of the Model Systems Report ( USEPA, 2000C), EPA estimates that 50% of small 100% purchasing surface water systems buy from large systems. The percent of 100% purchasing systems in the small surface water system category are derived from the Non treatment Baseline ( Stage 2 Non Treatment Model. xls). Ground Water Systems Exhibit I. 10a Schedule for PWS IDSE Costs Preferred Regulatory Alternative Economic Analysis for the Stage 2 DBPR Proposal I 16 July 2003 Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs 2003         2004         2005 38% 50% 14% 50%  50%  50% 2006 38% 50% 14% 50%  50%  50% 2007         2008 24%  73%  100%  100%  2009         2010         2011         2012         2013         2014         2015         2016         2017         2018         2019         2020         2021         2022         2023         2024         2025         2026         2027

Source: Derived from rule implementation schedule ( Appendix D), delayed two years. The schedule for small surface water systems has been adjusted to account for small 100% purchasing systems that purchase water from a large system and are, thus, on the large surface water system schedule for implementation and IDSE activities. Based on analysis of SDWIS data in Appendix B of the Model Systems Report ( USEPA, 2000C), EPA estimates that 50% of small 100% purchasing surface water systems buy from large systems. The percent of 100% purchasing systems in the small surface water system category are derived from the Non treatment Baseline ( Stage 2 Non Treatment Model. xls). Ground Water Systems Year Surface Water Systems Exhibit I. 10b Schedule for PWS IDSE Costs Alternative IDSE Implementation Schedule Economic Analysis for the Stage 2 DBPR Proposal I 17 July 2003 Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs 2003 5.8 $ 23.7 $  $ 0.1 $  $ 1.3 $  $ 0.0 $ 2004 5.8 $ 23.7 $  $ 0.1 $  $ 1.3 $  $ 0.0 $ 2005  $  $  $  $  $  $  $  $ 2006 3.6 $  $  $  $ 4.0 $  $ 0.0 $  $ 2007  $  $  $  $  $  $  $  $ 2008  $  $  $  $  $  $  $  $ 2009  $  $  $  $  $  $  $  $ 2010  $  $  $  $  $  $  $  $ 2011  $  $  $  $  $  $  $  $ 2012  $  $  $  $  $  $  $  $ 2013  $  $  $  $  $  $  $  $ 2014  $  $  $  $  $  $  $  $ 2015  $  $  $  $  $  $  $  $ 2016  $  $  $  $  $  $  $  $ 2017  $  $  $  $  $  $  $  $ 2018  $  $  $  $  $  $  $  $ 2019  $  $  $  $  $  $  $  $ 2020  $  $  $  $  $  $  $  $ 2021  $  $  $  $  $  $  $  $ 2022  $  $  $  $  $  $  $  $ 2023  $  $  $  $  $  $  $  $ 2024  $  $  $  $  $  $  $  $ 2025  $  $  $  $  $  $  $  $ 2026  $  $  $  $  $  $  $  $ 2027  $  $  $  $  $  $  $  $ Grand Total Total 15.2 $ 47.4 $  $ 0.2 $ 4.0 $ 2.5 $ 0.0 $ 0.0 $ 69.36 $

Note: All values in millions of year 2000 dollars.

Source: Rule Implementation Schedule ( Appendix D), Total IDSE costs are sum of costs from Exhibits H. 5a& b, H. 6a& b, and H. 7a& b. Ground Water Systems Year Surface Water Systems Exhibit I. 11a Cost Projections for Stage 2 DBPR IDSE Costs Preferred Regulatory Alternative Economic Analysis for the Stage 2 DBPR Proposal I 18 July 2003 Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs 2003  $  $  $  $  $  $  $  $ 2004  $  $  $  $  $  $  $  $ 2005 5.8 $ 23.7 $  $ 0.1 $  $ 1.3 $  $ 0.0 $ 2006 5.8 $ 23.7 $  $ 0.1 $  $ 1.3 $  $ 0.0 $ 2007  $  $  $  $  $  $  $  $ 2008 3.6 $  $  $  $ 4.0 $  $ 0.0 $  $ 2009  $  $  $  $  $  $  $  $ 2010  $  $  $  $  $  $  $  $ 2011  $  $  $  $  $  $  $  $ 2012  $  $  $  $  $  $  $  $ 2013  $  $  $  $  $  $  $  $ 2014  $  $  $  $  $  $  $  $ 2015  $  $  $  $  $  $  $  $ 2016  $  $  $  $  $  $  $  $ 2017  $  $  $  $  $  $  $  $ 2018  $  $  $  $  $  $  $  $ 2019  $  $  $  $  $  $  $  $ 2020  $  $  $  $  $  $  $  $ 2021  $  $  $  $  $  $  $  $ 2022  $  $  $  $  $  $  $  $ 2023  $  $  $  $  $  $  $  $ 2024  $  $  $  $  $  $  $  $ 2025  $  $  $  $  $  $  $  $ 2026  $  $  $  $  $  $  $  $ 2027  $  $  $  $  $  $  $  $ Grand Total Total ( check) 15.2 $ 47.4 $  $ 0.2 $ 4.0 $ 2.5 $ 0.0 $ 0.0 $ 69.36 $

Note: All values in millions of year 2000 dollars.

Source: Rule Implementation Schedule ( Appendix D), Total IDSE costs are sum of costs from Exhibits H. 5a& b, H. 6a& b, and H. 7a& b. Ground Water Systems Year Surface Water Systems Exhibit I. 11b Cost Projections for Stage 2 DBPR IDSE Costs IDSE Alternative Implementation Schedule Economic Analysis for the Stage 2 DBPR Proposal I 19 July 2003 Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs 2003 5.3 $ 21.7 $  $ 0.1 $  $ 1.2 $  $ 0.0 $ 2004 5.1 $ 21.1 $  $ 0.1 $  $ 1.1 $  $ 0.0 $ 2005  $  $  $  $  $  $  $  $ 2006 3.0 $  $  $  $ 3.4 $  $ 0.0 $  $ 2007  $  $  $  $  $  $  $  $ 2008  $  $  $  $  $  $  $  $ 2009  $  $  $  $  $  $  $  $ 2010  $  $  $  $  $  $  $  $ 2011  $  $  $  $  $  $  $  $ 2012  $  $  $  $  $  $  $  $ 2013  $  $  $  $  $  $  $  $ 2014  $  $  $  $  $  $  $  $ 2015  $  $  $  $  $  $  $  $ 2016  $  $  $  $  $  $  $  $ 2017  $  $  $  $  $  $  $  $ 2018  $  $  $  $  $  $  $  $ 2019  $  $  $  $  $  $  $  $ 2020  $  $  $  $  $  $  $  $ 2021  $  $  $  $  $  $  $  $ 2022  $  $  $  $  $  $  $  $ 2023  $  $  $  $  $  $  $  $ 2024  $  $  $  $  $  $  $  $ 2025  $  $  $  $  $  $  $  $ 2026  $  $  $  $  $  $  $  $ 2027  $  $  $  $  $  $  $  $ Grand Total Total ( check) 13.5 $ 42.8 $  $ 0.2 $ 3.4 $ 2.3 $ 0.0 $ 0.0 $ 62.05 $ Ann. Average 0.8 $ 2.5 $  $ 0.0 $ 0.2 $ 0.1 $ 0.0 $ 0.0 $ 3.56 $

Note: All values in millions of year 2000 dollars.

Source: Cost Projections for Stage 2 IDSE Costs, Discounted to Present Value at 3 percent discount rate. Ground Water Systems Year Surface Water Systems Exhibit I. 12a Annualized IDSE Costs, 3 Percent Discount Rate Preferred Regulatory Alternative Economic Analysis for the Stage 2 DBPR Proposal I 20 July 2003 Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs Small CWSs Large CWSs Small NTNCWSs Large NTNCWSs 2003  $  $  $  $  $  $  $  $ 2004  $  $  $  $  $  $  $  $ 2005 5.0 $ 20.5 $  $ 0.1 $  $ 1.1 $  $ 0.0 $ 2006 4.8 $ 19.9 $  $ 0.1 $  $ 1.1 $  $ 0.0 $ 2007  $  $  $  $  $  $  $  $ 2008 2.9 $  $  $  $ 3.2 $  $ 0.0 $  $ 2009  $  $  $  $  $  $  $  $ 2010  $  $  $  $  $  $  $  $ 2011  $  $  $  $  $  $  $  $ 2012  $  $  $  $  $  $  $  $ 2013  $  $  $  $  $  $  $  $ 2014  $  $  $  $  $  $  $  $ 2015  $  $  $  $  $  $  $  $ 2016  $  $  $  $  $  $  $  $ 2017  $  $  $  $  $  $  $  $ 2018  $  $  $  $  $  $  $  $ 2019  $  $  $  $  $  $  $  $ 2020  $  $  $  $  $  $  $  $ 2021  $  $  $  $  $  $  $  $ 2022  $  $  $  $  $  $  $  $ 2023  $  $  $  $  $  $  $  $ 2024  $  $  $  $  $  $  $  $ 2025  $  $  $  $  $  $  $  $ 2026  $  $  $  $  $  $  $  $ 2027  $  $  $  $  $  $  $  $ Grand Total Total 12.7 $ 40.3 $  $ 0.1 $ 3.2 $ 2.2 $ 0.0 $ 0.0 $ 58.49 $ Ann. Average 0.7 $ 2.3 $  $ 0.0 $ 0.2 $ 0.1 $ 0.0 $ 0.0 $ 3.36 $

Note: All values in millions of year 2000 dollars.

Source: Cost Projections for Stage 2 IDSE Costs, Discounted to Present Value at 3 percent discount rate. Ground Water Systems Year Surface Water Systems Exhibit I. 12b Annualized IDSE Costs, 3 Percent Discount Rate IDSE Alternative Implementation Schedule Economic Analysis for the Stage 2 DBPR Proposal I 21 July 2003 Implications on IDSE State Costs If the IDSE deadlines are delayed by 2 years, the burden on States for the IDSE will increase. Exhibit I. 13a shows the State costs for IDSE activities under the proposed rule schedule ( this is equivalent to values presented in Exhibit H. 11). EPA estimates that the number of hours needed for State personnel to conduct IDSE activities will double, since State personnel ( instead of EPA personnel) will be handling more of the system specific issues. This results in a increase in one time State primacy costs for the IDSE from $ 7.7 million to $ 15.4 million, and an increase in total State costs from $ 14.7 to 22.4 million.

In addition to changes in nominal costs, the delay in IDSE implementation will affect when States will incur burden and change the annualized costs. Exhibit I. 14a shows the rule activity schedule for States for the preferred regulatory alternative, which can be compared to the rule activity schedule for States for the alternative IDSE implementation schedule in Exhibit I. 14b. Exhibit I. 15a and I. 15b show the nominal costs projected through year 2027 for the preferred regulatory alternative and alternative IDSE implementation schedule. As shown in Exhibit I. 16a and I. 16b, the annualized costs for States are expected to increase from $ 1.05 to $ 1.38 million ( or by $ 0.33 million) for the alternative IDSE implementation schedule.

Implications for Total Annualized Costs of the Stage 2 DBPR Based on calculations shown previously, the total impact of an alternative IDSE implementation schedule ( delayed 2 years), is to increase the annualized costs of the rule by approximately $ 0.53 million. Stage 2 DBPR EA   Eleventh Draft I 22 December 2002 Deliberative Draft, Do Not Quote or Cite Cost per Labor Hour FTEs per State Hours per State Cost per State National Total FTEs National Total Hours National Total Cost A B C= B* 2,080 D= A* C E= B* 57 F= C* 57 G= D* 57 Implementation Activities Public Notification 28.89 $ 0.10 208 6,009 $ 5.70 11,856 342,520 $ Regulation Adoption and Program Development 28.89 $ 0.50 1,040 30,046 $ 28.50 59,280 1,712,599 $ Training State Staff 28.89 $ 0.25 520 15,023 $ 14.25 29,640 856,300 $ Training PWS Staff and Technical Assistants 28.89 $ 1.00 2,080 60,091 $ 57.00 118,560 3,425,198 $ Updating Data Management System 28.89 $ 0.10 208 6,009 $ 5.70 11,856 342,520 $ Totals 1.95 4,056 117,178 $ 111.15 231,192 6,679,137 $

IDSE Activities Analyze PWS IDSE Report and Make Determinations 28.89 $ 1.00 2,080 60,091 $ 57.00 118,560 3,425,198 $ Consult with PWS 28.89 $ 1.00 2,080 60,091 $ 57.00 118,560 3,425,198 $ IDSE Recordkeeping 28.89 $ 0.25 520 15,023 $ 14.25 29,640 856,300 $ Totals 2.25 4,680 135,205 $ 128.25 266,760 7,706,696 $

Additional Routine Monitoring Activities Recordkeeping and Compliance Tracking 28.89 $ 0.10 208 6,009 $ 5.70 11,856 342,520 $ Totals 0.10 208 6,009 $ 5.70 11,856 342,520 $

Grand Totals 4.30 8,944 258,392 $ 245.10 509,808 14,728,353 $

Notes:

Sources: Detail may not added due to independent rounding.

( B) FTEs per State/ Primacy Agency based on EPA experience with previous regulations. All states/ primacy agencies are assumed to incur some costs for each activity. 1 FTE = 2,080 hours ( 40 hours/ week; 52 weeks/ year).

( A) State labor rates based on the State Workload Model, updated to year 2000 dollar values. Exhibit I. 13a State Costs for the IDSE, Preferred Regulatory Alternative Stage 2 DBPR EA   Eleventh Draft I 23 December 2002 Deliberative Draft, Do Not Quote or Cite Cost per Labor Hour FTEs per State Hours per State Cost per State National Total FTEs National Total Hours National Total Cost A B C= B* 2,080 D= A* C E= B* 57 F= C* 57 G= D* 57 Implementation Activities Public Notification 28.89 $ 0.10 208 6,009 $ 5.70 11,856 342,520 $ Regulation Adoption and Program Development 28.89 $ 0.50 1,040 30,046 $ 28.50 59,280 1,712,599 $ Training State Staff 28.89 $ 0.25 520 15,023 $ 14.25 29,640 856,300 $ Training PWS Staff and Technical Assistants 28.89 $ 1.00 2,080 60,091 $ 57.00 118,560 3,425,198 $ Updating Data Management System 28.89 $ 0.10 208 6,009 $ 5.70 11,856 342,520 $ Totals 1.95 4,056 117,178 $ 111.15 231,192 6,679,137 $

IDSE Activities Analyze PWS IDSE Report and Make Determinations 28.89 $ 2.00 4,160 120,182 $ 114.00 237,120 6,850,397 $ Consult with PWS 28.89 $ 2.00 4,160 120,182 $ 114.00 237,120 6,850,397 $ IDSE Recordkeeping 28.89 $ 0.50 1,040 30,046 $ 28.50 59,280 1,712,599 $ Totals 4.50 9,360 270,410 $ 256.50 533,520 15,413,393 $

Additional Routine Monitoring Activities Recordkeeping and Compliance Tracking 28.89 $ 0.10 208 6,009 $ 5.70 11,856 342,520 $ Totals 0.10 208 6,009 $ 5.70 11,856 342,520 $

Grand Totals 6.55 13,624 393,597 $ 373.35 776,568 22,435,050 $

Notes:

Sources: Detail may not added due to independent rounding. All states/ primacy agencies are assumed to incur some costs for each activity. 1 FTE = 2,080 hours ( 40 hours/ week; 52 weeks/ year).

( B) FTEs per State/ Primacy Agency based on EPA experience with previous regulations. ( A) State labor rates based on the State Workload Model, updated to year 2000 dollar values. Exhibit I. 13b State Costs for the IDSE, IDSE Alternative Implementation Schedule Economic Analysis for the Stage 2 DBPR Proposal I 24 July 2003 Year Implementation Costs IDSE Costs Compliance Monitoring Costs 2003 50% 10% 100% 2004 50% 14% 100% 2005  4% 100% 2006  73% 100% 2007   100% 2008   100% 2009   100% 2010   100% 2011   100% 2012   100% 2013   100% 2014   100% 2015   100% 2016   100% 2017   100% 2018   100% 2019   100% 2020   100% 2021   100% 2022   100% 2023   100% 2024   100% 2025   100% 2026   100% 2027   100%

Source: Derived from rule implementation schedule. State implementation will occur in years 1 and 2 as states prepare their primacy packages.

State IDSE activities will lag 6 months behind large system IDSE progress and be concurrent with IDSE work by small systems. Exhibit I. 14a Schedule for State Costs Preferred Regulatory Alternative Economic Analysis for the Stage 2 DBPR Proposal I 25 July 2003 Year Implementation Costs IDSE Costs Compliance Monitoring Costs 2003 50%  100% 2004 50%  100% 2005  10% 100% 2006  14% 100% 2007  4% 100% 2008  73% 100% 2009   100% 2010   100% 2011   100% 2012   100% 2013   100% 2014   100% 2015   100% 2016   100% 2017   100% 2018   100% 2019   100% 2020   100% 2021   100% 2022   100% 2023   100% 2024   100% 2025   100% 2026   100% 2027   100%

Source: Derived from rule implementation schedule. State implementation will occur in years 1 and 2 as states prepare their primacy packages. State IDSE activities will lag 6 months behind large system IDSE progress and be concurrent with IDSE work by small systems. Exhibit I. 14b Schedule for State Costs IDSE Alternative Implementation Schedule Economic Analysis for the Stage 2 DBPR Proposal I 26 July 2003 Year Implementation Costs IDSE Costs Compliance Monitoring Costs 2003 3.3 $ 0.8 $ 0.3 $ 2004 3.3 $ 1.1 $ 0.3 $ 2005  $ 0.3 $ 0.3 $ 2006  $ 5.6 $ 0.3 $ 2007  $  $ 0.3 $ 2008  $  $ 0.3 $ 2009  $  $ 0.3 $ 2010  $  $ 0.3 $ 2011  $  $ 0.3 $ 2012  $  $ 0.3 $ 2013  $  $ 0.3 $ 2014  $  $ 0.3 $ 2015  $  $ 0.3 $ 2016  $  $ 0.3 $ 2017  $  $ 0.3 $ 2018  $  $ 0.3 $ 2019  $  $ 0.3 $ 2020  $  $ 0.3 $ 2021  $  $ 0.3 $ 2022  $  $ 0.3 $ 2023  $  $ 0.3 $ 2024  $  $ 0.3 $ 2025  $  $ 0.3 $ 2026  $  $ 0.3 $ 2027  $  $ 0.3 $ Totals 6.68 7.71 8.56 Source: Derived from rule implementation schedule.

State implementation will occur in years 1 and 2 as states prepare their primacy packages. Exhibit I. 15a Cost Projections for Stage 2 DBPR State Costs Preferred Regulatory Alternative Economic Analysis for the Stage 2 DBPR Proposal I 27 July 2003 Year Implementation Costs IDSE Costs Compliance Monitoring Costs 2003 3.3 $  $ 0.3 $ 2004 3.3 $  $ 0.3 $ 2005  $ 1.5 $ 0.3 $ 2006  $ 2.1 $ 0.3 $ 2007  $ 0.6 $ 0.3 $ 2008  $ 11.2 $ 0.3 $ 2009  $  $ 0.3 $ 2010  $  $ 0.3 $ 2011  $  $ 0.3 $ 2012  $  $ 0.3 $ 2013  $  $ 0.3 $ 2014  $  $ 0.3 $ 2015  $  $ 0.3 $ 2016  $  $ 0.3 $ 2017  $  $ 0.3 $ 2018  $  $ 0.3 $ 2019  $  $ 0.3 $ 2020  $  $ 0.3 $ 2021  $  $ 0.3 $ 2022  $  $ 0.3 $ 2023  $  $ 0.3 $ 2024  $  $ 0.3 $ 2025  $  $ 0.3 $ 2026  $  $ 0.3 $ 2027  $  $ 0.3 $ Totals 6.68 15.41 8.56 Source: Derived from rule implementation schedule.

State implementation will occur in years 1 and 2 as states prepare their primacy packages. Exhibit I. 15b Cost Projections for Stage 2 DBPR State Costs Alternative IDSE Implementation Schedule Economic Analysis for the Stage 2 DBPR Proposal I 28 July 2003 Year Implementation Costs IDSE Costs Compliance Monitoring Costs 2003 3.1 $ 0.7 $ 0.3 $ 2004 3.0 $ 0.9 $ 0.3 $ 2005  $ 0.3 $ 0.3 $ 2006  $ 4.7 $ 0.3 $ 2007  $  $ 0.3 $ 2008  $  $ 0.3 $ 2009  $  $ 0.3 $ 2010  $  $ 0.3 $ 2011  $  $ 0.2 $ 2012  $  $ 0.2 $ 2013  $  $ 0.2 $ 2014  $  $ 0.2 $ 2015  $  $ 0.2 $ 2016  $  $ 0.2 $ 2017  $  $ 0.2 $ 2018  $  $ 0.2 $ 2019  $  $ 0.2 $ 2020  $  $ 0.2 $ 2021  $  $ 0.2 $ 2022  $  $ 0.2 $ 2023  $  $ 0.2 $ 2024  $  $ 0.2 $ 2025  $  $ 0.2 $ 2026  $  $ 0.2 $ 2027  $  $ 0.2 $ Grand Total Totals 6.02 $ 6.57 $ 5.62 $ 18.22 $ Annualized Ave 0.3 $ 0.4 $ 0.3 $ 1.05 $

Source: Derived from rule implementation schedule. State implementation will occur in years 1 and 2 as states prepare their primacy packages. Exhibit I. 16a Annualized State Costs, 3 Percent Discount Rate Preferred Regulatory Alternative Economic Analysis for the Stage 2 DBPR Proposal I 29 July 2003 Year Implementation Costs IDSE Costs Compliance Monitoring Costs 2003 3.1 $  $ 0.3 $ 2004 3.0 $  $ 0.3 $ 2005  $ 1.3 $ 0.3 $ 2006  $ 1.8 $ 0.3 $ 2007  $ 0.5 $ 0.3 $ 2008  $ 8.8 $ 0.3 $ 2009  $  $ 0.3 $ 2010  $  $ 0.3 $ 2011  $  $ 0.2 $ 2012  $  $ 0.2 $ 2013  $  $ 0.2 $ 2014  $  $ 0.2 $ 2015  $  $ 0.2 $ 2016  $  $ 0.2 $ 2017  $  $ 0.2 $ 2018  $  $ 0.2 $ 2019  $  $ 0.2 $ 2020  $  $ 0.2 $ 2021  $  $ 0.2 $ 2022  $  $ 0.2 $ 2023  $  $ 0.2 $ 2024  $  $ 0.2 $ 2025  $  $ 0.2 $ 2026  $  $ 0.2 $ 2027  $  $ 0.2 $ Grand Total Totals 6.02 $ 12.39 $ 5.62 $ 24.04 $ Annualized Ave 0.3 $ 0.7 $ 0.3 $ 1.38 $

Source: Derived from rule implementation schedule. State implementation will occur in years 1 and 2 as states prepare their primacy packages. Exhibit I. 16b Annualized State Costs, 3 Percent Discount Rate Alternative IDSE Implementation Schedule Economic Analysis for the Stage 2 DBPR Proposal J 1 July 2003 Appendix J 1 Unit Costs for Technologies Considered in the Stage 2 DBPR 234 Exhibits 6.8a and 6.8b in Chapter 6 list the treatment technologies ( along with their constraints 5 and design criteria) considered for surface and ground water plants to meet the Stage 2 Disinfectants and 6 Disinfection Byproducts Rule ( DBPR). This Appendix builds on information presented in Chapter 6 by 7 presenting the following.

89 ° Capital unit cost estimates for a wide range of design flows ( in tabular and graphical form) 10 11 ° Operations and Maintenance ( O& M) unit cost estimates for a wide range of average daily 12 flows ( in tabular and graphical form) 13 14 The range of design and average flows is intended to cover all possible system flows. When 15 flows fall between the design or average daily flows used to estimate unit costs, straight line interpolation 16 can be used to estimate the capital or O& M cost. Design costs were calculated for points ranging 17 between 0.007 million gallons per day ( MGD) and 520 MGD. For plants with flows less than 0.007 18 MGD, the value for 0.007 MGD was used. For plants with flows greater than 520 MGD, the costs are 19 calculated by extrapolating a straight line between the last two calculated cost points. Points are included 20 in the graphs at 0.0001 MGD and 1500 MGD to show these assumptions. Likewise for average daily 21 flows, points were calculated between 0.0015 MGD and 350 MGD. Points outside this range show the 22 assumptions used to extrapolate costs. 23 24 The costs are copies from the Technologies and Costs Document for Control of Microbial 25 Contaminants and Disinfection By Products ( USEPA 2003o). These unit costs have been revised to 26 incorporate recommendations from the National Drinking Water Advisory Council ( NDWAC) Arsenic 27 Cost Working Group ( NDWAC 2001). 28 29 The Matrix of Appendix J Contents ( shown on the next page) describes the exhibits in this 30 appendix. Each exhibit lists the constraints and design criteria for the technology, presents a table 31 showing the unit cost estimates for each design or average flow point, and graphically displays each point 32 to illustrate the way in which the costs increase with flow. All graphs are in Log Log scale. Summaries 33 of capital, O& M, and household costs for mean flow values for each of the Environmental Protection 34 Agency's ( EPA's) standard nine system size categories are presented in Chapter 6. 35 36 Economic Analysis for the Stage 2 DBPR Proposal J 2 July 2003 Source Water Type Technology Cost Type Exhibit Number Chloramines Capital J. 1 O& M J. 2 Chlorine Dioxide Capital J. 3 O& M J. 4 UV Capital J. 5 O& M J. 6 Ozone Capital J. 7 O& M J. 8 Microfiltration/ Ultrafiltration Capital J. 9 O& M J. 10 GAC10 Capital J. 11 O& M J. 12 GAC20 Capital J. 13 O& M J. 14 Nanofiltration 1 Capital J. 15 O& M J. 16 Chloramines Capital J. 17 O& M J. 18 UV Capital J. 19 O& M J. 20 Ozone Capital J. 21 O& M J. 22 GAC20 Capital J. 23 O& M J. 24 Nanofiltration Capital J. 25 O& M J. 26 J. 27 Surface Ground Derivation of Household Unit Costs for Small System Affordability Analysis Matrix of Appendix J Contents 123456789 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 1Nanofiltration is combined with microfiltration/ ultrafiltration to represent the integrated membrane technology for 36 surface water plants. 37 Exhibit J. 1 Capital Costs for Switching to Chloramines Surface Water Plants Constraints: It can be used alone or in conjunction with the other technologies Design Criteria: 1) Ammonia dose = 0.55 mg/ L Design Flow Capital Cost ( mgd) ($) 0.0001 $ 27,912 0.0070 $ 27,912 0.0220 $ 27,912 0.0370 $ 27,912 0.0910 $ 27,912 0.1800 $ 29,412 0.2700 $ 36,440 0.3600 $ 37,321 0.6800 $ 40,454 1.0000 $ 51,586 1.2000 $ 80,696 2.0000 $ 80,696 3.5000 $ 80,696 7.0000 $ 80,696 17.0000 $ 95,696 22.0000 $ 129,366 76.0000 $ 382,253 210.0000 $ 474,677 430.0000 $ 570,244 520.0000 $ 710,620 1500.0000 $ 2,239,158 Capital Costs for Switching to Chloramines ( Ammonia dose = 0.55 mg/ L)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 1E 04 0.001 0.01 0.1 1 10 100 1000 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 3 July 2003 Exhibit J. 2 O& M Costs for Switching to Chloramines Surface Water Plants Constraints: It can be used alone or in conjunction with the other technologies Design Criteria: 1) Ammonia dose = 0.55 mg/ L Average Flow O& M cost ( mgd) ($) 0.00005 $ 1,566 0.00150 $ 1,566 0.00540 $ 1,570 0.00950 $ 1,575 0.02500 $ 1,592 0.05400 $ 1,623 0.08400 $ 3,038 0.11000 $ 3,065 0.23000 $ 3,101 0.35000 $ 4,478 0.41000 $ 6,037 0.77000 $ 6,678 1.40000 $ 7,875 3.00000 $ 10,263 7.80000 $ 15,174 11.00000 $ 18,601 38.00000 $ 30,967 120.00000 $ 79,369 270.00000 $ 153,192 350.00000 $ 195,454 750.00000 $ 406,765 O& M Costs for Switching to Chloramines ( Ammonia dose = 0.55 mg/ L)

$ 1,000 $ 10,000 $ 100,000 $ 1,000,000 0.00001 0.001 0.1 10 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 4 July 2003 Exhibit J. 3 Capital Costs for Chlorine Dioxide Surface Water Plants Constraints: Not applicable for systems serving populations < 100 Design Criteria: 1) No new contact basin would be required 2) ClO2 dose = 1.25 mg/ L Design Flow Capital Cost ( mgd) ($) 0.0001 Not Applicable 0.0070 Not Applicable 0.0220 Not Applicable 0.0370 Not Applicable 0.0910 $ 31,610 0.1800 $ 37,514 0.2700 $ 38,282 0.3600 $ 39,139 0.6800 $ 41,955 1.0000 $ 39,109 1.2000 $ 79,647 2.0000 $ 81,086 3.5000 $ 185,629 7.0000 $ 205,304 17.0000 $ 259,851 22.0000 $ 287,126 76.0000 $ 582,407 210.0000 $ 866,583 430.0000 $ 1,204,376 520.0000 $ 1,323,707 1500.0000 $ 2,623,085 Capital Costs for Chlorine Dioxide ( ClO2 dose = 1.25 mg/ L)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 0.01 0.1 1 10 100 1000 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 5 July 2003 Exhibit J. 4 O& M Costs for Chlorine Dioxide Surface Water Plants Constraints: Not applicable for systems serving populations < 100 Design Criteria: 1) No new contact basin would be required 2) ClO2 dose = 1.25 mg/ L Average Flow O& M Cost ( mgd) ($) 0.00005 Not Applicable 0.00150 Not Applicable 0.00540 Not Applicable 0.00950 Not Applicable 0.02500 $ 14,880 0.05400 $ 16,053 0.08400 $ 16,826 0.11000 $ 17,105 0.23000 $ 17,922 0.35000 $ 18,685 0.41000 $ 19,100 0.77000 $ 21,419 1.40000 $ 21,327 3.00000 $ 24,665 7.80000 $ 35,050 11.00000 $ 41,359 38.00000 $ 85,583 120.00000 $ 214,036 270.00000 $ 422,373 350.00000 $ 533,451 750.00000 $ 1,088,846 O& M Costs for Chlorine Dioxide ( ClO2 dose = 1.25 mg/ L)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 0.01 0.1 1 10 100 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 6 July 2003 Exhibit J. 5 Capital Costs for UV Surface Water Plants Constraints: None Design Criteria: 1) UV254 = 0.051 cm 1, Turbidity = 0.1 NTU, Alkalinity = 60 mg/ L CaCO3, Hardness = 100 mg/ L CaCO3 2) UV dose = 40 mJ/ cm2 Design Flow Capital Cost ( mgd) ($) 0.0001 $ 9,924 0.0070 $ 9,924 0.0220 $ 12,645 0.0370 $ 15,329 0.0910 $ 24,687 0.1800 $ 39,068 0.2700 $ 52,290 0.3600 $ 64,184 0.6800 $ 95,721 1.0000 $ 222,584 1.2000 $ 233,919 2.0000 $ 307,127 3.5000 $ 408,427 7.0000 $ 660,687 17.0000 $ 1,300,376 22.0000 $ 1,594,181 76.0000 $ 4,642,358 210.0000 $ 12,159,564 430.0000 $ 25,171,112 520.0000 $ 30,742,815 1500.0000 $ 91,412,472 Capital Costs for UV ( UV dose = 40 mJ/ cm2, UV254 = 0.051 cm 1, Turbidity = 0.1 NTU)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 0.0001 0.001 0.01 0.1 1 10 100 1000 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 7 July 2003 Exhibit J. 6 O& M Costs for UV Surface Water Plants Constraints: None Design Criteria: 1) UV254 = 0.051 cm 1, Turbidity = 0.1 NTU, Alkalinity = 60 mg/ L CaCO3, Hardness = 100 mg/ L CaCO3 2) UV dose = 40 mJ/ cm2 Average Flow O& M Cost ( mgd) ($) 0.00005 $ 3,399 0.00150 $ 3,399 0.00540 $ 3,429 0.00950 $ 3,818 0.02500 $ 4,579 0.05400 $ 4,769 0.08400 $ 6,119 0.11000 $ 6,498 0.23000 $ 8,159 0.35000 $ 9,024 0.41000 $ 9,457 0.77000 $ 11,499 1.40000 $ 13,938 3.00000 $ 16,140 7.80000 $ 22,853 11.00000 $ 27,468 38.00000 $ 66,624 120.00000 $ 187,881 270.00000 $ 418,801 350.00000 $ 546,773 750.00000 $ 1,186,635 O& M Costs for UV ( UV dose = 40 mJ/ cm2, UV254 = 0.051 cm 1, Turbidity = 0.1 NTU)

$ 1,000 $ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 0.00001 0.001 0.1 10 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 8 July 2003 Exhibit J. 7 Capital Costs for Ozone Surface Water Plants Constraints: Not practical for systems serving 100 or fewer Design Criteria: 1) Contact time = 12 minutes 2) Ozone Maximum dose = 3.19 mg/ L Design Flow Capital Cost ( mgd) ($) 0.0001 Not Applicable 0.0070 Not Applicable 0.0220 Not Applicable 0.0370 Not Applicable 0.0910 $ 306,733 0.1800 $ 331,732 0.2700 $ 410,701 0.3600 $ 429,873 0.6800 $ 574,835 1.0000 $ 655,369 1.2000 $ 748,729 2.0000 $ 1,108,348 3.5000 $ 1,400,987 7.0000 $ 2,039,310 17.0000 $ 3,569,008 22.0000 $ 4,057,564 76.0000 $ 11,437,951 210.0000 $ 23,271,892 430.0000 $ 39,346,816 520.0000 $ 46,476,447 1500.0000 $ 124,110,202 Capital Costs for Ozone ( Dose = 3.19 mg/ L, Contact time = 12 minutes)

$ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.01 0.1 1 10 100 1000 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 9 July 2003 Exhibit J. 8 O& M Costs for Ozone Surface Water Plants Constraints: Not practical for systems serving 100 or fewer Design Criteria: 1) Contact time = 12 minutes 2) Ozone maximum dose = 3.19 mg/ L Average Flow O& M Cost ( mgd) ($) 0.00005 Not Applicable 0.00150 Not Applicable 0.00540 Not Applicable 0.00950 Not Applicable 0.02500 $ 56,531 0.05400 $ 56,686 0.08400 $ 57,147 0.11000 $ 57,286 0.23000 $ 58,379 0.35000 $ 59,246 0.41000 $ 59,942 0.77000 $ 63,369 1.40000 $ 70,679 3.00000 $ 84,708 7.80000 $ 126,345 11.00000 $ 151,853 38.00000 $ 386,197 120.00000 $ 1,131,923 270.00000 $ 2,326,749 350.00000 $ 2,965,095 750.00000 $ 6,156,829 O& M Costs for Ozone ( Dose = 3.19 mg/ L, Contact time = 12 minutes)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 0.01 0.1 1 10 100 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 10 July 2003 Exhibit J. 9 Capital Costs for MF/ UF Surface Water Plants Constraints: None Design Criteria: 1) Water temp. = 10 degrees C 2) Sewer disposal Design Flow Capital Cost ( mgd) ($) 0.0001 $ 126,730 0.0070 $ 126,730 0.0220 $ 206,121 0.0370 $ 260,157 0.0910 $ 393,517 0.1800 $ 605,175 0.2700 $ 720,600 0.3600 $ 818,777 0.6800 $ 1,089,993 1.0000 $ 1,533,916 1.2000 $ 1,672,053 2.0000 $ 2,615,310 3.5000 $ 3,981,989 7.0000 $ 7,095,991 17.0000 $ 15,365,946 22.0000 $ 19,274,465 76.0000 $ 58,795,535 210.0000 $ 147,293,783 430.0000 $ 282,503,048 520.0000 $ 335,884,024 1500.0000 $ 917,143,536 Capital Costs for MF/ UF ( Temp. = 10 degrees C, Sewer disposal)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.0001 0.01 1 100 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 11 July 2003 Exhibit J. 10 O& M Costs for MF/ UF Surface Water Plants Constraints: None Design Criteria: 1) Water temp. = 10 degrees C 2) Sewer disposal Average Flow O& M Cost ( mgd) ($) 0.00005 $ 7,145 0.00150 $ 7,145 0.00540 $ 7,601 0.00950 $ 8,071 0.02500 $ 9,815 0.05400 $ 23,306 0.08400 $ 26,497 0.11000 $ 29,421 0.23000 $ 41,671 0.35000 $ 69,500 0.41000 $ 75,603 0.77000 $ 106,304 1.40000 $ 162,699 3.00000 $ 321,899 7.80000 $ 781,382 11.00000 $ 1,029,635 38.00000 $ 3,295,042 120.00000 $ 9,873,367 270.00000 $ 21,396,307 350.00000 $ 27,162,834 750.00000 $ 55,995,468 O& M Costs for MF/ UF ( Temp. = 10 degrees C, Sewer disposal)

$ 1,000 $ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 0.00001 0.001 0.1 10 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 12 July 2003 Exhibit J. 11 Capital Costs for GAC10 Surface Water Plants Constraints: Not practical for systems serving 10,000 or fewer persons Design Criteria: 1) Reactivation frequency = 360 days 2) Onsite regeneration Design Flow Capital Cost ( mgd) ($) 0.0001 Not Applicable 0.0070 Not Applicable 0.0220 Not Applicable 0.0370 $ 60,750 0.0910 $ 97,307 0.1800 $ 153,426 0.2700 $ 206,628 0.3600 $ 258,604 0.6800 $ 434,477 1.0000 $ 753,229 1.2000 $ 961,218 2.0000 $ 1,331,550 3.5000 $ 1,935,301 7.0000 $ 3,129,311 17.0000 $ 5,894,486 22.0000 $ 7,103,058 76.0000 $ 17,577,650 210.0000 $ 36,661,251 430.0000 $ 61,958,498 520.0000 $ 71,251,757 1500.0000 $ 172,445,012 Capital Costs for GAC10 ( Reactivation frequency = 360 days, onsite regeneration)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.01 0.1 1 10 100 1000 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 13 July 2003 Exhibit J. 12 O& M Costs for GAC10 Surface Water Plants Constraints: Not practical for systems serving 10,000 or fewer persons Design Criteria: 1) Reactivation frequency = 360 days 2) Onsite regeneration Average Flow O& M Cost ( mgd) ($) 0.00005 Not Applicable 0.00150 Not Applicable 0.00540 Not Applicable 0.00950 $ 12,360 0.02500 $ 19,485 0.05400 $ 28,052 0.08400 $ 30,902 0.11000 $ 34,917 0.23000 $ 46,132 0.35000 $ 57,232 0.41000 $ 51,976 0.77000 $ 61,522 1.40000 $ 77,734 3.00000 $ 117,714 7.80000 $ 223,726 11.00000 $ 276,141 38.00000 $ 700,590 120.00000 $ 1,930,628 270.00000 $ 4,109,268 350.00000 $ 5,253,236 750.00000 $ 10,973,076 O& M Costs for GAC10 ( Reactivation frequency = 360 days, onsite regeneration)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 0.001 0.01 0.1 1 10 100 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 14 July 2003 Exhibit J. 13 Capital Costs for GAC20 Surface Water Plants Constraints: None Design Criteria: 1) Reactivation frequency = 90 days 2) Onsite regeneration for system serving more than 10,000 people 3) Media replacement for systems serving 10,000 or fewer people Design Flow Capital Cost ( mgd) ($) 0.0001 $ 34,944 0.0070 $ 34,944 0.0220 $ 51,211 0.0370 $ 67,885 0.0910 $ 132,410 0.1800 $ 232,148 0.2700 $ 326,766 0.3600 $ 417,447 0.6800 $ 708,992 1.0000 $ 1,179,491 1.2000 $ 1,491,296 2.0000 $ 2,117,739 3.5000 $ 3,146,100 7.0000 $ 5,196,469 17.0000 $ 9,994,133 22.0000 $ 12,105,188 76.0000 $ 30,250,612 210.0000 $ 64,392,745 430.0000 $ 110,161,213 520.0000 $ 127,064,791 1500.0000 $ 311,125,976 Capital Costs for GAC20 ( Reactivation frequency = 90 days)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.0001 0.01 1 100 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 15 July 2003 Exhibit J. 14 O& M Costs for GAC20 Surface Water Plants Constraints: None Design Criteria: 1) Reactivation frequency = 90 days 2) Onsite regeneration for system serving more than 10,000 people 3) Media replacement for systems serving 10,000 or fewer people Average Flow O& M Cost ( mgd) ($) 0.00005 $ 9,222 0.00150 $ 9,222 0.00540 $ 18,223 0.00950 $ 25,644 0.02500 $ 47,782 0.05400 $ 48,603 0.08400 $ 61,851 0.11000 $ 74,549 0.23000 $ 123,862 0.35000 $ 171,361 0.41000 $ 177,461 0.77000 $ 198,999 1.40000 $ 235,875 3.00000 $ 327,328 7.80000 $ 649,586 11.00000 $ 854,448 38.00000 $ 2,426,385 120.00000 $ 6,675,323 270.00000 $ 13,806,859 350.00000 $ 17,448,504 750.00000 $ 35,656,731 O& M Costs for GAC20 ( Reactivation frequency = 90 days)

$ 1,000 $ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 1E 05 1E 04 0.001 0.01 0.1 1 10 100 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 16 July 2003 Exhibit J. 15 Capital Costs for Nanofiltration Surface Water Plants Constraints: None Design Criteria: 1) Water temp. = 10 degrees C 2) Ocean discharge Design Flow Capital Cost ( mgd) ($) 0.0001 $ 57,525 0.0070 $ 57,525 0.0220 $ 74,149 0.0370 $ 90,772 0.0910 $ 157,393 0.1800 $ 221,934 0.2700 $ 311,361 0.3600 $ 351,040 0.6800 $ 645,274 1.0000 $ 889,719 1.2000 $ 1,051,390 2.0000 $ 1,954,756 3.5000 $ 3,286,990 7.0000 $ 6,499,205 17.0000 $ 14,869,801 22.0000 $ 19,105,695 76.0000 $ 55,387,959 210.0000 $ 124,824,207 430.0000 $ 255,424,078 520.0000 $ 306,978,901 1500.0000 $ 868,353,635 Capital Costs for Nanofiltration ( Temp. = 10 degrees C, ocean discharge)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.0001 0.01 1 100 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 17 July 2003 Exhibit J. 16 O& M Costs for Nanofiltration Surface Water Plants Constraints: None Design Criteria: 1) Water temp. = 10 degrees C 2) Ocean discharge Average Flow O& M Cost ( mgd) ($) 0.00005 $ 7,789 0.00150 $ 7,789 0.00540 $ 8,800 0.00950 $ 9,872 0.02500 $ 14,051 0.05400 $ 30,613 0.08400 $ 37,777 0.11000 $ 43,061 0.23000 $ 70,281 0.35000 $ 111,819 0.41000 $ 125,926 0.77000 $ 203,795 1.40000 $ 339,238 3.00000 $ 703,226 7.80000 $ 1,763,644 11.00000 $ 2,409,108 38.00000 $ 7,862,441 120.00000 $ 23,730,069 270.00000 $ 52,646,948 350.00000 $ 67,712,655 750.00000 $ 143,041,188 O& M Costs for Nanofiltration ( Temp. = 10 degrees C, ocean discharge)

$ 1,000 $ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.00001 0.001 0.1 10 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 18 July 2003 Exhibit J. 17 Capital Costs for Switching to Chloramines Ground Water Plants Constraints: It can be used alone or in conjunction with the other technologies Design Criteria: 1) Ammonia dose = 0.15 mg/ L Design Flow Capital Cost ( mgd) ($) 0.0001 $ 27,912 0.0070 $ 27,912 0.0220 $ 27,912 0.0370 $ 27,912 0.0910 $ 27,912 0.1800 $ 29,412 0.2700 $ 36,440 0.3600 $ 37,321 0.6800 $ 40,454 1.0000 $ 51,586 1.2000 $ 80,696 2.0000 $ 80,696 3.5000 $ 80,696 7.0000 $ 80,696 17.0000 $ 95,696 22.0000 $ 95,696 76.0000 $ 95,696 210.0000 $ 154,366 430.0000 $ 413,127 520.0000 $ 413,127 1500.0000 $ 413,127 Capital Costs for Switching to Chloramines ( Ammonia Dose = 0.15 mg/ L)

$ 10,000 $ 100,000 $ 1,000,000 1E 04 0.001 0.01 0.1 1 10 100 1000 10000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 19 July 2003 Exhibit J. 18 O& M Costs for Switching to Chloramines Ground Water Plants Constraints: It can be used alone or in conjunction with the other technologies Design Criteria: 1) Ammonia dose = 0.15 mg/ L Average Flow O& M Cost ( mgd) ($) 0.00005 $ 1,565 0.00150 $ 1,565 0.00540 $ 1,566 0.00950 $ 1,567 0.02500 $ 1,572 0.05400 $ 1,580 0.08400 $ 2,973 0.11000 $ 2,981 0.23000 $ 2,990 0.35000 $ 4,310 0.41000 $ 5,780 0.77000 $ 6,196 1.40000 $ 7,004 3.00000 $ 8,415 7.80000 $ 11,015 11.00000 $ 12,534 38.00000 $ 23,008 120.00000 $ 45,384 270.00000 $ 65,310 350.00000 $ 77,901 750.00000 $ 140,855 O& M Costs for Switching to Chloramines ( Ammonia Dose = 0.15 mg/ L)

$ 1,000 $ 10,000 $ 100,000 $ 1,000,000 0.00001 0.001 0.1 10 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 20 July 2003 Exhibit J. 19 Capital Costs for UV Ground Water Plants Constraints: None Design Criteria: 1) UV254 = 0.051 cm 1, Turbidity = 0.1 NTU 2) Alkalinity = 60 mg/ L CaCO3, Hardness = 100 mg/ L CaCO3 3) UV dose = 200 mJ/ cm2 Design Flow Capital Cost ( mgd) ($) 0.0001 $ 19,937 0.0070 $ 19,937 0.0220 $ 24,013 0.0370 $ 28,088 0.0910 $ 42,760 0.1800 $ 66,942 0.2700 $ 91,395 0.3600 $ 115,849 0.6800 $ 202,794 1.0000 $ 449,368 1.2000 $ 489,097 2.0000 $ 696,192 3.5000 $ 1,003,788 7.0000 $ 1,760,142 17.0000 $ 3,833,256 22.0000 $ 4,663,129 76.0000 $ 13,625,666 210.0000 $ 35,881,035 430.0000 $ 72,395,074 520.0000 $ 87,332,636 1500.0000 $ 249,986,083 Capital Costs for UV ( UV dose = 200 mJ/ cm2, Turbidity = 0.1 NTU,

UV254 = 0.051 cm 1)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 1E 04 0.001 0.01 0.1 1 10 100 1000 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 21 July 2003 Exhibit J. 20 O& M Costs for UV Ground Water Plants Constraints: None Design Criteria: 1) UV254 = 0.051 cm 1, Turbidity = 0.1 NTU 2) Alkalinity = 60 mg/ L CaCO3, Hardness = 100 mg/ L CaCO3 3) UV dose = 200 mJ/ cm2 Average Flow O& M Cost ( mgd) ($) 0.00005 $ 3,984 0.00150 $ 3,984 0.00540 $ 4,118 0.00950 $ 4,686 0.02500 $ 5,975 0.05400 $ 7,206 0.08400 $ 8,850 0.11000 $ 9,230 0.23000 $ 10,775 0.35000 $ 11,497 0.41000 $ 12,480 0.77000 $ 15,392 1.40000 $ 19,142 3.00000 $ 29,196 7.80000 $ 71,152 11.00000 $ 99,163 38.00000 $ 336,820 120.00000 $ 1,072,973 270.00000 $ 2,475,577 350.00000 $ 3,253,233 750.00000 $ 7,141,510 O& M Costs for UV ( UV dose = 200 mJ/ cm2, Turbidity = 0.1 NTU,

UV254 = 0.051 cm 1)

$ 1,000 $ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 1E 05 0.0001 0.001 0.01 0.1 1 10 100 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 22 July 2003 Exhibit J. 21 Capital Costs for Ozone Ground Water Plants Constraints: Not practical for systems serving 100 or fewer people Design Criteria: 1) Contact time = 12 minutes 2) Ozone maximum dose = 3.19 mg/ L Design Flow Capital Cost ( mgd) ($) 0.0001 Not Applicable 0.0070 Not Applicable 0.0220 Not Applicable 0.0370 Not Applicable 0.0910 $ 306,733 0.1800 $ 331,732 0.2700 $ 410,701 0.3600 $ 429,873 0.6800 $ 574,835 1.0000 $ 655,369 1.2000 $ 748,729 2.0000 $ 1,108,348 3.5000 $ 1,400,987 7.0000 $ 2,039,310 17.0000 $ 3,569,008 22.0000 $ 4,057,564 76.0000 $ 11,437,951 210.0000 $ 23,271,892 430.0000 $ 39,346,816 520.0000 $ 46,476,447 1500.0000 $ 124,110,202 Capital Costs for Ozone ( Dose = 3.19 mg/ L, Contact time = 12 minutes)

$ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.01 0.1 1 10 100 1000 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 23 July 2003 Exhibit J. 22 O& M Costs for Ozone Ground Water Plants Constraints: Not practical for systems serving 100 or fewer people Design Criteria: 1) Contact time = 12 minutes 2) Ozone maximum dose = 3.19 mg/ L Average Flow O& M Cost ( mgd) ($) 0.00005 Not Applicable 0.00150 Not Applicable 0.00540 Not Applicable 0.00950 Not Applicable 0.02500 $ 56,531 0.05400 $ 56,686 0.08400 $ 57,147 0.11000 $ 57,286 0.23000 $ 58,379 0.35000 $ 59,246 0.41000 $ 59,942 0.77000 $ 63,369 1.40000 $ 70,679 3.00000 $ 84,708 7.80000 $ 126,345 11.00000 $ 151,853 38.00000 $ 386,197 120.00000 $ 1,131,923 270.00000 $ 2,326,749 350.00000 $ 2,965,095 750.00000 $ 6,156,829 O& M Costs for Ozone ( Dose = 3.19 mg/ L, Contact time = 12 minutes)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 0.01 0.1 1 10 100 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 24 July 2003 Exhibit J. 23 Capital Costs for GAC20 Ground Water Plants Constraints: None Design Criteria: 1) Reactivation frequency = 240 days 2) Onsite regeneration for systems serving more than 10,000 people 3) Media replacement for systems serving 10,000 or fewer people Design Flow Capital Cost ( mgd) ($) 0.0001 $ 34,944 0.0070 $ 34,944 0.0220 $ 51,211 0.0370 $ 67,885 0.0910 $ 132,410 0.1800 $ 232,148 0.2700 $ 326,766 0.3600 $ 417,447 0.6800 $ 708,992 1.0000 $ 1,179,491 1.2000 $ 1,299,190 2.0000 $ 1,855,588 3.5000 $ 2,780,301 7.0000 $ 4,651,079 17.0000 $ 9,110,253 22.0000 $ 11,096,119 76.0000 $ 28,529,679 210.0000 $ 62,098,782 430.0000 $ 107,964,358 520.0000 $ 125,068,321 1500.0000 $ 311,311,471 Capital Costs for GAC20 ( Reactivation frequency = 240 days)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.0001 0.01 1 100 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 25 July 2003 Exhibit J. 24 O& M Costs for GAC20 Ground Water Plants Constraints: None Design Criteria: 1) Reactivation frequency = 240 days 2) Onsite regeneration for systems serving more than 10,000 people 3) Media replacement for systems serving 10,000 or fewer people Average Flow O& M Cost ( mgd) ($) 0.00005 $ 6,673 0.00150 $ 6,673 0.00540 $ 11,206 0.00950 $ 14,742 0.02500 $ 24,752 0.05400 $ 36,031 0.08400 $ 42,959 0.11000 $ 50,255 0.23000 $ 75,195 0.35000 $ 98,890 0.41000 $ 96,841 0.77000 $ 110,105 1.40000 $ 133,014 3.00000 $ 190,387 7.80000 $ 361,906 11.00000 $ 463,435 38.00000 $ 1,278,749 120.00000 $ 3,580,415 270.00000 $ 7,445,710 350.00000 $ 9,260,140 750.00000 $ 18,332,287 O& M Costs for GAC20 ( Reactivation frequency = 240 days)

$ 1,000 $ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 0.00001 0.001 0.1 10 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 26 July 2003 Exhibit J. 25 Capital Costs for Nanofiltration Ground Water Plants Constraints: None Design Criteria: 1) Water temp. = 10 degrees C 2) Ocean discharge Design Flow Capital Cost ( mgd) ($) 0.0001 $ 57,525 0.0070 $ 57,525 0.0220 $ 74,149 0.0370 $ 90,772 0.0910 $ 157,393 0.1800 $ 221,934 0.2700 $ 311,361 0.3600 $ 351,040 0.6800 $ 645,274 1.0000 $ 889,719 1.2000 $ 1,051,390 2.0000 $ 1,954,756 3.5000 $ 3,286,990 7.0000 $ 6,499,205 17.0000 $ 14,869,801 22.0000 $ 19,105,695 76.0000 $ 55,387,959 210.0000 $ 124,824,207 430.0000 $ 255,424,078 520.0000 $ 306,978,901 1500.0000 $ 868,353,635 Capital Costs for Nanofiltration ( Temp. = 10 degrees C, ocean discharge)

$ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.0001 0.01 1 100 10000 Design Flow ( mgd) Capital Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 27 July 2003 Exhibit J. 26 O& M Costs for Nanofiltration Ground Water Plants Constraints: None Design Criteria: 1) Water temp. = 10 degrees C 2) Ocean discharge Average Flow O& M Cost ( mgd) ($) 0.00005 $ 7,789 0.00150 $ 7,789 0.00540 $ 8,800 0.00950 $ 9,872 0.02500 $ 14,051 0.05400 $ 30,613 0.08400 $ 37,777 0.11000 $ 43,061 0.23000 $ 70,281 0.35000 $ 111,819 0.41000 $ 125,926 0.77000 $ 203,795 1.40000 $ 339,238 3.00000 $ 703,226 7.80000 $ 1,763,644 11.00000 $ 2,409,108 38.00000 $ 7,862,441 120.00000 $ 23,730,069 270.00000 $ 52,646,948 350.00000 $ 67,712,655 750.00000 $ 143,041,188 O& M Costs for Nanofiltration ( Temp. = 10 degrees C, ocean discharge)

$ 1,000 $ 10,000 $ 100,000 $ 1,000,000 $ 10,000,000 $ 100,000,000 $ 1,000,000,000 0.00001 0.001 0.1 10 1000 Average Flow ( mgd) O& M Cost ($)

Economic Analysis for the Stage 2 DBPR Proposal J 28 July 2003 Design Average Capital Annual O& M Total Unit Median Annual Water Household Flow Daily Flow Cost Capital Cost Annual Costs Usage per HH Unit Costs ( mgd) ( mgd) ($) Cost at 7%($) ($) Costs ($) ($/ kgal/ yr) ( kgal/ yr) ($) A B C D E F= D+ E G= F/ A H I= G* H 25  500 0.058 0.015 27,912 $ 2,635 $ 1,569 $ 4,203 0.77 83 63.57 501  3,300 0.5 0.17 38,692 $ 3,652 $ 2,986 $ 6,638 0.11 85 9.10 3,301  10,000 1.8 0.7 80,696 $ 7,617 $ 6,116 $ 13,733 0.05 89 4.76 25  500 0.058 0.015 33,794 $ 3,190 $ 5,143 $ 8,333 1.52 83 126.03 501  3,300 0.5 0.17 153,887 $ 14,526 $ 10,003 $ 24,529 0.40 85 33.64 3,301  10,000 1.8 0.7 644,418 $ 60,829 $ 14,826 $ 75,655 0.30 89 26.22 25  500 0.058 0.015 306,733 $ 28,953 $ 56,531 $ 85,485 15.61 83 1,292.81 501  3,300 0.5 0.17 493,294 $ 46,563 $ 57,832 $ 104,396 1.68 85 143.18 3,301  10,000 1.8 0.7 1,018,443 $ 96,134 $ 62,703 $ 158,836 0.62 89 55.05 25  500 0.058 0.015 92,978 $ 8,776 $ 18,294 $ 27,071 4.94 83 409.40 501  3,300 0.5 0.17 544,998 $ 51,444 $ 62,725 $ 114,169 1.84 85 156.58 3,301  10,000 1.8 0.7 1,716,489 $ 162,024 $ 107,526 $ 269,551 1.05 89 93.42 25  500 0.058 0.015 116,680 $ 11,014 $ 11,355 $ 22,369 4.09 83 338.29 501  3,300 0.5 0.17 479,767 $ 45,287 $ 56,671 $ 101,958 1.64 85 139.83 3,301  10,000 1.8 0.7 1,728,915 $ 163,197 $ 188,654 $ 351,851 1.38 89 121.94 25  500 0.058 0.015 27,912 $ 2,635 $ 1,581 $ 4,215 0.77 83 63.75 501  3,300 0.5 0.17 38,692 $ 3,652 $ 3,083 $ 6,735 0.11 85 9.24 3,301  10,000 1.8 0.7 80,696 $ 7,617 $ 6,553 $ 14,170 0.06 89 4.91 25  500 0.058 0.015 31,610 $ 2,984 $ 14,880 $ 17,864 3.26 83 270.16 501  3,300 0.5 0.17 40,371 $ 3,811 $ 17,514 $ 21,324 0.34 85 29.25 3,301  10,000 1.8 0.7 80,726 $ 7,620 $ 20,968 $ 28,588 0.11 89 9.91 25  500 0.058 0.015 18,968 $ 1,790 $ 4,088 $ 5,879 1.07 83 88.90 501  3,300 0.5 0.17 77,981 $ 7,361 $ 7,329 $ 14,689 0.24 85 20.15 3,301  10,000 1.8 0.7 288,825 $ 27,263 $ 11,102 $ 38,365 0.15 89 13.30 25  500 0.058 0.015 306,733 $ 28,953 $ 56,531 $ 85,485 15.61 83 1,292.81 501  3,300 0.5 0.17 493,294 $ 46,563 $ 57,832 $ 104,396 1.68 85 143.18 3,301  10,000 1.8 0.7 1,018,443 $ 96,134 $ 62,703 $ 158,836 0.62 89 55.05 25  500 0.058 0.015 312,019 $ 29,452 $ 8,690 $ 38,142 6.97 83 576.84 501  3,300 0.5 0.17 937,434 $ 88,487 $ 35,546 $ 124,033 2.00 85 170.11 3,301  10,000 1.8 0.7 2,379,496 $ 224,608 $ 100,335 $ 324,942 1.27 89 112.62 25  500 0.058 0.015 74,967 $ 7,076 $ 14,888 $ 21,965 4.01 83 332.18 501  3,300 0.5 0.17 335,548 $ 31,673 $ 40,525 $ 72,198 1.16 85 99.02 3,301  10,000 1.8 0.7 1,238,967 $ 116,950 $ 59,666 $ 176,616 0.69 89 61.21 25  500 0.058 0.015 92,978 $ 8,776 $ 33,499 $ 42,276 7.72 83 639.35 501  3,300 0.5 0.17 544,998 $ 51,444 $ 99,206 $ 150,650 2.43 85 206.61 3,301  10,000 1.8 0.7 1,961,128 $ 185,117 $ 194,811 $ 379,928 1.49 89 131.67 25  500 0.058 0.015 428,700 $ 40,466 $ 20,045 $ 60,511 11.05 83 915.12 501  3,300 0.5 0.17 1,417,201 $ 133,774 $ 92,217 $ 225,991 3.64 85 309.94 3,301  10,000 1.8 0.7 4,108,411 $ 387,805 $ 288,988 $ 676,793 2.65 89 234.56 Sources: Exhibits I. 1 I. 26, flows from Exhibit 8.3. Note: HH consumption values derived from small system affordability document, values were multiplied by 1.15 to account for water lost due to leaks. Technology Population Served Ground Water CWSs Chloramines ( 0.15 mg/ L)

UV ( 200mJ/ cm2)

Ozone ( 0.5 log dose)

GAC20 ( EBCT= 20 min, 240 day NF Exhibit J. 27 Stage 2 DBPR  Small Systems Household Unit Costs for the Stage 2 Affordability Analysis Surface Water CWSs Chloramines ( 0.55 mg/ L)

Chlorine Dioxide ( 1.25 mg/ L)

UV ( 40mJ/ cm2)

Ozone ( 0.5 log dose)

MF/ UF GAC10 ( EBCT= 10 min, 360 day GAC20 ( EBCT= 20 min, 90 day regeneration)

Integrated Membranes Economic Analysis for the Stage 2 DBPR Proposal J 29 July 2003 Appendix K Stage 2 DBPR Cost Projections Economic Analysis for the Stage 2 DBPR Proposal July 2003 Matrix of Appendix K Contents Appendix K Stage 2 DBPR Cost Projections Applicable Rule Alternative( s) Exhibit Description Applicable Source Water Type( s) Applicable System Classification( s) Applicable System Size Exhibit Number Preferred Alternative Total Capital and O& M Costs All All All K. 1a Alternative 1 Total Capital and O& M Costs All All All K. 1b Alternative 2 Total Capital and O& M Costs All All All K. 1c Alternative 3 Total Capital and O& M Costs All All All K. 1d IDSE Sensitivity 1 Total Capital and O& M Costs All All All K. 1e IDSE Sensitivity 2 Total Capital and O& M Costs All All All K. 1f All Alternatives Total Implementation, IDSE, Additional Routine Monitoring, and Significant Excursion Evaluation Costs All All All K. 1g All Alternatives Total Primacy Agency Costs N/ A N/ A N/ A K. 1h < 100 K. 2a 101 500 K. 2b 501 1,000 K. 2c 1,001 3,300 K. 2d 3,301 10K K. 2e 10,001 50K K. 2f 50,001 100K K. 2g 100,001 1M K. 2h > 1 Million K. 2i All K. 2j < 100 K. 2k 101 500 K. 2l 501 1,000 K. 2m 1,001 3,300 K. 2n 3,301 10K K. 2o 10,001 50K K. 2p 50,001 100K K. 2q 100,001 1M K. 2r > 1 Million K. 2s All K. 2t All All K. 2u < 100 K. 2v 101 500 K. 2w 501 1,000 K. 2x 1,001 3,300 K. 2y 3,301 10K K. 2z 10,001 50K K. 2aa 50,001 100K K. 2ab 100,001 1M K. 2ac > 1 Million K. 2ad All K. 2ae < 100 K. 2af 101 500 K. 2ag 501 1,000 K. 2ah 1,001 3,300 K. 2ai 3,301 10K K. 2aj 10,001 50K K. 2ak 50,001 100K K. 2al 100,001 1M K. 2am > 1 Million K. 2an All K. 2ao All All K. 2ap All All All K. 2aq Annual Primacy Agency Cost Projections N/ A N/ A N/ A K. 2ar Present Value of Total Costs at 3% Discount Rate All All All K. 2as Present Value of Capital Costs at 3% Discount Rate All All All K. 2at Present Value of O& M Costs at 3% Discount Rate All All All K. 2au Present Value of Non treatment Costs at 3% Discount Rate All All All K. 2av Present Value of Total Costs at 7% Discount Rate All All All K. 2aw Present Value of Capital Costs at 7% Discount Rate All All All K. 2ax Present Value of O& M Costs at 7% Discount Rate All All All K. 2ay Present Value of Non treatment Costs at 7% Discount Rate All All All K. 2az Present Value of Total Costs at 3% Discount Rate All K. 2ba Present Value of Capital Costs at 3% Discount Rate All K. 2bb Present Value of O& M Costs at 3% Discount Rate All K. 2bc Present Value of Non Treatment Costs at 3% Discount Rate All K. 2bd Present Value of Total Costs at 3% Discount Rate All K. 2be Present Value of Capital Costs at 3% Discount Rate All K. 2bf Present Value of O& M Costs at 3% Discount Rate All K. 2bg Present Value of Non Treatment Costs at 3% Discount Rate All K. 2bh CWS NTNCWS Surface Water Ground Water CWS NTNCWS Annual PWS Cost Projections Surface Water Stage 2 Preferred Alternative CWS NTNCWS Economic Analysis for the Stage 2 DBPR Proposal July 2003 Applicable Rule Alternative( s) Exhibit Description Applicable Source Water Type( s) Applicable System Classification( s) Applicable System Size Exhibit Number Present Value of Total Costs at 3% Discount Rate All K. 2bi Present Value of Capital Costs at 3% Discount Rate All K. 2bj Present Value of O& M Costs at 3% Discount Rate All K. 2bk Present Value of Non Treatment Costs at 3% Discount Rate All K. 2bl Present Value of Total Costs at 3% Discount Rate All K. 2bm Present Value of Capital Costs at 3% Discount Rate All K. 2bn Present Value of O& M Costs at 3% Discount Rate All K. 2bo Present Value of Non Treatment Costs at 3% Discount Rate All K. 2bp Present Value of Total Costs at 7% Discount Rate All K. 2bq Present Value of Capital Costs at 7% Discount Rate All K. 2br Present Value of O& M Costs at 7% Discount Rate All K. 2bs Present Value of Non Treatment Costs at 7% Discount Rate All K. 2bt Present Value of Total Costs at 7% Discount Rate All K. 2bu Present Value of Capital Costs at 7% Discount Rate All K. 2bv Present Value of O& M Costs at 7% Discount Rate All K. 2bw Present Value of Non Treatment Costs at 7% Discount Rate All K. 2bx Present Value of Total Costs at 7% Discount Rate All K. 2by Present Value of Capital Costs at 7% Discount Rate All K. 2bz Present Value of O& M Costs at 7% Discount Rate All K. 2ca Present Value of Non Treatment Costs at 7% Discount Rate All K. 2cb Present Value of Total Costs at 7% Discount Rate All K. 2cc Present Value of Capital Costs at 7% Discount Rate All K. 2cd Present Value of O& M Costs at 7% Discount Rate All K. 2ce Present Value of Non Treatment Costs at 7% Discount Rate All K. 2cf CWSs All K. 3a NTNCWs All K. 3b All All K. 3c CWSs All K. 3d NTNCWs All K. 3e All All K. 3f All All All K. 3g Annual Primacy Agency Cost Projections All All All K. 3h Present Value of Total Costs at 3% Discount Rate All All All K. 3i Present Value of Capital Costs at 3% Discount Rate All All All K. 3j Present Value of O& M Costs at 3% Discount Rate All All All K. 3k Present Value of Non treatment Costs at 3% Discount Rate All All All K. 3l Present Value of Total Costs at 7% Discount Rate All All All K. 3m Present Value of Capital Costs at 7% Discount Rate All All All K. 3n Present Value of O& M Costs at 7% Discount Rate All All All K. 3o Present Value of Non treatment Costs at 7% Discount Rate All All All K. 3p CWSs All K. 4a NTNCWs All K. 4b All All K. 4c CWSs All K. 4d NTNCWs All K. 4e All All K. 4f All All All K. 4g Annual Primacy Agency Cost Projections All All All K. 4h Present Value of Total Costs at 3% Discount Rate All All All K. 4i Present Value of Capital Costs at 3% Discount Rate All All All K. 4j Present Value of O& M Costs at 3% Discount Rate All All All K. 4k Present Value of Non treatment Costs at 3% Discount Rate All All All K. 4l Present Value of Total Costs at 7% Discount Rate All All All K. 4m Present Value of Capital Costs at 7% Discount Rate All All All K. 4n Present Value of O& M Costs at 7% Discount Rate All All All K. 4o Present Value of Non treatment Costs at 7% Discount Rate All All All K. 4p Annual PWS Cost Projections Surface Water Ground Water Annual PWS Cost Projections Surface Water Ground Water Stage 2 Alternative 1 Stage 2 Alternative 2 CWS Ground Water NTNCWS Ground Water CWS Surface Water NTNCWS Stage 2 Preferred Alternative ( Continued)

Ground Water CWS NTNCWS Economic Analysis for the Stage 2 DBPR Proposal July 2003 Applicable Rule Alternative( s) Exhibit Description Applicable Source Water Type( s) Applicable System Classification( s) Applicable System Size Exhibit Number CWSs All K. 5a NTNCWs All K. 5b All All K. 5c CWSs All K. 5d NTNCWs All K. 5e All All K. 5f All All All K. 5g Annual Primacy Agency Cost Projections All All All K. 5h Present Value of Total Costs at 3% Discount Rate All All All K. 5i Present Value of Capital Costs at 3% Discount Rate All All All K. 5j Present Value of O& M Costs at 3% Discount Rate All All All K. 5k Present Value of Non treatment Costs at 3% Discount Rate All All All K. 5l Present Value of Total Costs at 7% Discount Rate All All All K. 5m Present Value of Capital Costs at 7% Discount Rate All All All K. 5n Present Value of O& M Costs at 7% Discount Rate All All All K. 5o Present Value of Non treatment Costs at 7% Discount Rate All All All K. 5p CWSs All K. 6a NTNCWs All K. 6b All All K. 6c CWSs All K. 6d NTNCWs All K. 6e All All K. 6f All All All K. 6g Annual Primacy Agency Cost Projections All All All K. 6h Present Value of Total Costs at 3% Discount Rate All All All K. 6i Present Value of Capital Costs at 3% Discount Rate All All All K. 6j Present Value of O& M Costs at 3% Discount Rate All All All K. 6k Present Value of Non treatment Costs at 3% Discount Rate All All All K. 6l Present Value of Total Costs at 7% Discount Rate All All All K. 6m Present Value of Capital Costs at 7% Discount Rate All All All K. 6n Present Value of O& M Costs at 7% Discount Rate All All All K. 6o Present Value of Non treatment Costs at 7% Discount Rate All All All K. 6p CWSs All K. 7a NTNCWs All K. 7b All All K. 7c CWSs All K. 7d NTNCWs All K. 7e All All K. 7f All All All K. 7g Annual Primacy Agency Cost Projections All All All K. 7h Present Value of Total Costs at 3% Discount Rate All All All K. 7i Present Value of Capital Costs at 3% Discount Rate All All All K. 7j Present Value of O& M Costs at 3% Discount Rate All All All K. 7k Present Value of Non treatment Costs at 3% Discount Rate All All All K. 7l Present Value of Total Costs at 7% Discount Rate All All All K. 7m Present Value of Capital Costs at 7% Discount Rate All All All K. 7n Present Value of O& M Costs at 7% Discount Rate All All All K. 7o Present Value of Non treatment Costs at 7% Discount Rate All All All K. 7p Annual PWS Cost Projections Surface Water Ground Water Annual PWS Cost Projections Surface Water Ground Water Annual PWS Cost Projections Surface Water Ground Water Stage 2 IDSE Sensitivity Analysis 1 Stage 2 IDSE Sensitivity Analysis 2 Stage 2 Alternative 3 Economic Analysis for the Stage 2 DBPR Proposal July 2003 Section K. 1 Total Costs Summaries and Cost Schedules Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 1a Total Stage 2 DBPR Capital and O& M Costs  PWSs Preferred Alternative Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

< 100 0.76 $ 0.75 $ 0.61 $ 0.90 $ 0.14 $ 0.14 $ 0.14 $ 0.15 $

101 500 3.43 $ 3.43 $ 2.90 $ 3.96 $ 0.65 $ 0.65 $ 0.60 $ 0.70 $

501 1,000 3.14 $ 3.14 $ 2.66 $ 3.62 $ 0.50 $ 0.50 $ 0.46 $ 0.54 $

1,001 3,300 11.42 $ 11.42 $ 9.83 $ 13.03 $ 1.64 $ 1.64 $ 1.52 $ 1.76 $

3,301 10K 27.52 $ 27.50 $ 23.86 $ 31.21 $ 2.58 $ 2.58 $ 2.40 $ 2.76 $

10,001 50K 57.05 $ 57.09 $ 50.18 $ 63.84 $ 3.40 $ 3.40 $ 3.22 $ 3.59 $

50,001 100K 31.63 $ 31.65 $ 27.80 $ 35.43 $ 1.82 $ 1.82 $ 1.72 $ 1.92 $

100,001 1M 82.26 $ 82.29 $ 72.18 $ 92.25 $ 4.64 $ 4.64 $ 4.37 $ 4.91 $

> 1 Million 42.85 $ 42.87 $ 37.27 $ 48.40 $ 2.96 $ 2.96 $ 2.77 $ 3.15 $

All Sizes 260.04 $ 260.16 $ 227.28 $ 292.63 $ 18.33 $ 18.33 $ 17.20 $ 19.48 $

< 100 0.47 $ 0.47 $ 0.38 $ 0.56 $ 0.09 $ 0.09 $ 0.08 $ 0.09 $

101 500 1.31 $ 1.31 $ 1.11 $ 1.51 $ 0.25 $ 0.25 $ 0.23 $ 0.27 $

501 1,000 0.72 $ 0.72 $ 0.61 $ 0.83 $ 0.11 $ 0.11 $ 0.10 $ 0.12 $

1,001 3,300 0.72 $ 0.72 $ 0.62 $ 0.83 $ 0.10 $ 0.10 $ 0.10 $ 0.11 $

3,301 10K 0.57 $ 0.57 $ 0.49 $ 0.64 $ 0.05 $ 0.05 $ 0.05 $ 0.05 $

10,001 50K 0.51 $ 0.51 $ 0.45 $ 0.58 $ 0.03 $ 0.03 $ 0.03 $ 0.03 $

50,001 100K 0.13 $ 0.13 $ 0.12 $ 0.15 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

100,001 1M 0.21 $ 0.21 $ 0.18 $ 0.23 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 4.64 $ 4.64 $ 3.95 $ 5.33 $ 0.65 $ 0.65 $ 0.60 $ 0.69 $

264.68 $ 264.80 $ 231.23 $ 297.96 $ 18.98 $ 18.98 $ 17.80 $ 20.17 $

< 100 8.98 $ 8.98 $ 7.79 $ 10.18 $ 1.05 $ 1.05 $ 0.98 $ 1.11 $

101 500 22.85 $ 22.85 $ 19.63 $ 26.07 $ 2.43 $ 2.43 $ 2.25 $ 2.60 $

501 1,000 12.67 $ 12.68 $ 10.88 $ 14.46 $ 1.24 $ 1.24 $ 1.16 $ 1.33 $

1,001 3,300 20.95 $ 20.95 $ 17.48 $ 24.40 $ 1.70 $ 1.70 $ 1.56 $ 1.83 $

3,301 10K 31.47 $ 31.46 $ 25.85 $ 37.05 $ 1.43 $ 1.43 $ 1.32 $ 1.53 $

10,001 50K 55.86 $ 55.85 $ 50.42 $ 61.34 $ 4.98 $ 4.97 $ 4.71 $ 5.25 $

50,001 100K 14.96 $ 14.96 $ 13.38 $ 16.55 $ 1.33 $ 1.33 $ 1.24 $ 1.41 $

100,001 1M 26.96 $ 26.96 $ 24.00 $ 29.97 $ 2.68 $ 2.68 $ 2.50 $ 2.87 $

> 1 Million 2.28 $ 2.28 $ 2.01 $ 2.56 $ 0.31 $ 0.31 $ 0.28 $ 0.33 $

All Sizes 196.99 $ 196.97 $ 171.45 $ 222.58 $ 17.13 $ 17.13 $ 16.00 $ 18.28 $

< 100 4.18 $ 4.18 $ 3.65 $ 4.71 $ 0.47 $ 0.47 $ 0.42 $ 0.50 $

101 500 4.16 $ 4.16 $ 3.59 $ 4.74 $ 0.43 $ 0.43 $ 0.39 $ 0.46 $

501 1,000 1.90 $ 1.90 $ 1.64 $ 2.16 $ 0.18 $ 0.18 $ 0.16 $ 0.20 $

1,001 3,300 0.88 $ 0.88 $ 0.74 $ 1.03 $ 0.06 $ 0.06 $ 0.05 $ 0.06 $

3,301 10K 0.28 $ 0.28 $ 0.23 $ 0.33 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

10,001 50K 0.12 $ 0.12 $ 0.11 $ 0.13 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

50,001 100K 0.02 $ 0.02 $ 0.02 $ 0.03 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $

100,001 1M 0.12 $ 0.12 $ 0.11 $ 0.13 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 11.66 $ 11.67 $ 10.08 $ 13.27 $ 1.17 $ 1.17 $ 1.06 $ 1.27 $

208.66 $ 208.64 $ 181.52 $ 235.85 $ 18.30 $ 18.29 $ 17.06 $ 19.54 $

473.34 $ 473.45 $ 412.76 $ 533.81 $ 37.27 $ 37.27 $ 34.86 $ 39.71 $

Notes:

Source: Total All values in millions of year 2000 dollars. 90 percent confidence bounds reflect uncertainy in unit treatment costs.

Detail may not add exactly to totals due to independent rounding. Derived by multiplying unit costs in Exhibits 6.9 and 6.10 by Technology Selection Deltas in Exhibits 6.14 and 6.16 for the Preferred Alternative, summed for all technologies. Ground Water CWSs NTNCWSs Subtotal Source Mean Value Median Value 90 Percent Confidence Bound System Classification System Size ( Population Served) Capital Costs Subtotal Surface Water CWSs NTNCWSs O& M Costs Mean Value Median Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 1b Total Stage 2 DBPR Capital and O& M Costs  PWSs Alternative 1 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

< 100 1.05 $ 1.05 $ 0.89 $ 1.21 $ 0.22 $ 0.22 $ 0.21 $ 0.24 $

101 500 6.53 $ 6.53 $ 5.76 $ 7.29 $ 0.64 $ 0.64 $ 0.60 $ 0.68 $

501 1,000 6.80 $ 6.80 $ 6.00 $ 7.60 $ 0.65 $ 0.65 $ 0.61 $ 0.68 $

1,001 3,300 25.00 $ 25.00 $ 22.00 $ 27.92 $ 2.21 $ 2.21 $ 2.08 $ 2.33 $

3,301 10K 57.21 $ 57.23 $ 50.43 $ 63.80 $ 4.78 $ 4.78 $ 4.50 $ 5.05 $

10,001 50K 190.46 $ 190.44 $ 165.02 $ 216.02 $ 14.16 $ 14.16 $ 13.19 $ 15.13 $

50,001 100K 115.80 $ 115.82 $ 100.04 $ 131.68 $ 9.05 $ 9.05 $ 8.41 $ 9.69 $

100,001 1M 368.69 $ 368.79 $ 316.32 $ 421.03 $ 31.73 $ 31.73 $ 29.40 $ 34.09 $

> 1 Million 233.06 $ 233.16 $ 198.82 $ 267.16 $ 25.74 $ 25.74 $ 23.80 $ 27.71 $

All Sizes 1,004.59 $ 1,004.82 $ 865.28 $ 1,143.71 $ 89.17 $ 89.17 $ 82.80 $ 95.61 $

< 100 0.64 $ 0.64 $ 0.55 $ 0.74 $ 0.13 $ 0.13 $ 0.13 $ 0.14 $

101 500 2.54 $ 2.54 $ 2.24 $ 2.83 $ 0.25 $ 0.25 $ 0.23 $ 0.26 $

501 1,000 1.54 $ 1.55 $ 1.36 $ 1.72 $ 0.14 $ 0.14 $ 0.14 $ 0.15 $

1,001 3,300 1.59 $ 1.59 $ 1.40 $ 1.77 $ 0.14 $ 0.14 $ 0.13 $ 0.15 $

3,301 10K 1.23 $ 1.23 $ 1.08 $ 1.37 $ 0.10 $ 0.10 $ 0.09 $ 0.10 $

10,001 50K 1.86 $ 1.86 $ 1.61 $ 2.11 $ 0.14 $ 0.14 $ 0.13 $ 0.15 $

50,001 100K 0.59 $ 0.59 $ 0.51 $ 0.67 $ 0.05 $ 0.05 $ 0.04 $ 0.05 $

100,001 1M 0.97 $ 0.97 $ 0.83 $ 1.11 $ 0.08 $ 0.08 $ 0.08 $ 0.09 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 10.96 $ 10.96 $ 9.58 $ 12.32 $ 1.03 $ 1.03 $ 0.97 $ 1.10 $

1,015.55 $ 1,015.78 $ 874.86 $ 1,156.03 $ 90.21 $ 90.20 $ 83.77 $ 96.71 $

< 100 10.22 $ 10.22 $ 8.93 $ 11.52 $ 1.26 $ 1.26 $ 1.18 $ 1.34 $

101 500 28.51 $ 28.52 $ 24.76 $ 32.31 $ 3.16 $ 3.16 $ 2.95 $ 3.37 $

501 1,000 16.64 $ 16.63 $ 14.49 $ 18.81 $ 1.79 $ 1.79 $ 1.69 $ 1.90 $

1,001 3,300 37.92 $ 37.93 $ 32.66 $ 43.11 $ 3.58 $ 3.57 $ 3.35 $ 3.80 $

3,301 10K 58.24 $ 58.23 $ 49.85 $ 66.57 $ 3.56 $ 3.55 $ 3.35 $ 3.76 $

10,001 50K 137.20 $ 137.19 $ 119.79 $ 154.53 $ 13.69 $ 13.70 $ 12.73 $ 14.66 $

50,001 100K 42.30 $ 42.30 $ 36.75 $ 47.79 $ 4.16 $ 4.17 $ 3.85 $ 4.49 $

100,001 1M 78.03 $ 78.03 $ 67.61 $ 88.35 $ 8.66 $ 8.66 $ 7.97 $ 9.35 $

> 1 Million 7.09 $ 7.09 $ 6.10 $ 8.07 $ 1.05 $ 1.05 $ 0.97 $ 1.14 $

All Sizes 416.15 $ 416.14 $ 360.95 $ 471.06 $ 40.91 $ 40.91 $ 38.04 $ 43.82 $

< 100 4.73 $ 4.73 $ 4.14 $ 5.31 $ 0.57 $ 0.57 $ 0.53 $ 0.61 $

101 500 5.31 $ 5.31 $ 4.63 $ 5.99 $ 0.57 $ 0.57 $ 0.53 $ 0.61 $

501 1,000 2.53 $ 2.53 $ 2.21 $ 2.85 $ 0.26 $ 0.26 $ 0.24 $ 0.28 $

1,001 3,300 1.66 $ 1.66 $ 1.43 $ 1.89 $ 0.14 $ 0.14 $ 0.13 $ 0.14 $

3,301 10K 0.52 $ 0.52 $ 0.44 $ 0.59 $ 0.02 $ 0.02 $ 0.02 $ 0.03 $

10,001 50K 0.36 $ 0.35 $ 0.31 $ 0.40 $ 0.03 $ 0.03 $ 0.03 $ 0.03 $

50,001 100K 0.07 $ 0.07 $ 0.06 $ 0.08 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

100,001 1M 0.37 $ 0.37 $ 0.32 $ 0.43 $ 0.05 $ 0.05 $ 0.04 $ 0.05 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 15.55 $ 15.55 $ 13.55 $ 17.54 $ 1.65 $ 1.65 $ 1.53 $ 1.76 $

431.70 $ 431.69 $ 374.50 $ 488.60 $ 42.56 $ 42.56 $ 39.58 $ 45.58 $

1,447.25 $ 1,447.48 $ 1,249.35 $ 1,644.63 $ 132.76 $ 132.76 $ 123.34 $ 142.28 $

Notes:

Source: Total All values in millions of year 2000 dollars.

Detail may not add exactly to totals due to independent rounding.

Derived by multiplying unit costs in Exhibits 6.9 and 6.10 by Technology Selection Deltas in Appendix C ( results for Alternative 1), summed for all technologies. Ground Water CWSs NTNCWSs Subtotal Source Mean Value Median Value 90 Percent Confidence Bound System Classification System Size ( Population Served) Capital Costs Subtotal Surface Water CWSs NTNCWSs O& M Costs Mean Value Median Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 1c Total Stage 2 DBPR Capital and O& M Costs  PWSs Alternative 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

< 100 9.19 $ 9.19 $ 8.31 $ 10.08 $ 1.82 $ 1.82 $ 1.74 $ 1.90 $

101 500 50.41 $ 50.41 $ 46.19 $ 54.71 $ 8.44 $ 8.44 $ 8.03 $ 8.86 $

501 1,000 54.91 $ 54.92 $ 50.53 $ 59.38 $ 7.11 $ 7.11 $ 6.79 $ 7.43 $

1,001 3,300 191.08 $ 190.98 $ 174.31 $ 208.03 $ 26.12 $ 26.13 $ 24.83 $ 27.42 $

3,301 10K 475.82 $ 475.69 $ 433.44 $ 518.47 $ 44.38 $ 44.38 $ 42.26 $ 46.50 $

10,001 50K 667.41 $ 667.22 $ 612.84 $ 722.47 $ 34.98 $ 34.98 $ 33.71 $ 36.23 $

50,001 100K 381.12 $ 381.02 $ 350.10 $ 412.68 $ 19.93 $ 19.93 $ 19.21 $ 20.65 $

100,001 1M 1,034.36 $ 1,034.35 $ 950.96 $ 1,118.80 $ 56.25 $ 56.24 $ 54.14 $ 58.36 $

> 1 Million 558.67 $ 558.80 $ 513.78 $ 603.76 $ 39.49 $ 39.49 $ 37.96 $ 41.03 $

All Sizes 3,422.97 $ 3,422.56 $ 3,140.45 $ 3,708.38 $ 238.53 $ 238.52 $ 228.66 $ 248.39 $

< 100 5.53 $ 5.53 $ 5.00 $ 6.07 $ 1.08 $ 1.08 $ 1.03 $ 1.13 $

101 500 19.63 $ 19.64 $ 18.01 $ 21.25 $ 3.21 $ 3.21 $ 3.06 $ 3.37 $

501 1,000 12.51 $ 12.51 $ 11.52 $ 13.50 $ 1.60 $ 1.60 $ 1.52 $ 1.67 $

1,001 3,300 12.09 $ 12.09 $ 11.04 $ 13.14 $ 1.65 $ 1.65 $ 1.57 $ 1.73 $

3,301 10K 9.96 $ 9.97 $ 9.09 $ 10.84 $ 0.87 $ 0.87 $ 0.83 $ 0.91 $

10,001 50K 6.16 $ 6.16 $ 5.66 $ 6.67 $ 0.31 $ 0.31 $ 0.30 $ 0.33 $

50,001 100K 1.67 $ 1.67 $ 1.54 $ 1.81 $ 0.09 $ 0.09 $ 0.08 $ 0.09 $

100,001 1M 2.59 $ 2.59 $ 2.38 $ 2.80 $ 0.14 $ 0.14 $ 0.14 $ 0.15 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 70.15 $ 70.17 $ 64.23 $ 76.08 $ 8.95 $ 8.95 $ 8.53 $ 9.37 $

3,493.12 $ 3,492.72 $ 3,204.67 $ 3,784.47 $ 247.49 $ 247.48 $ 237.20 $ 257.76 $

< 100 15.48 $ 15.50 $ 13.34 $ 17.61 $ 1.33 $ 1.33 $ 1.25 $ 1.41 $

101 500 28.44 $ 28.45 $ 24.64 $ 32.16 $ 2.52 $ 2.52 $ 2.36 $ 2.67 $

501 1,000 14.30 $ 14.30 $ 12.49 $ 16.10 $ 1.22 $ 1.22 $ 1.14 $ 1.30 $

1,001 3,300 26.05 $ 26.07 $ 22.64 $ 29.40 $ 2.18 $ 2.18 $ 2.04 $ 2.32 $

3,301 10K 35.06 $ 35.08 $ 30.00 $ 40.05 $ 1.92 $ 1.92 $ 1.81 $ 2.04 $

10,001 50K 117.72 $ 117.73 $ 104.21 $ 131.02 $ 10.74 $ 10.74 $ 10.05 $ 11.42 $

50,001 100K 31.24 $ 31.26 $ 27.29 $ 35.15 $ 2.92 $ 2.92 $ 2.70 $ 3.13 $

100,001 1M 55.80 $ 55.83 $ 48.31 $ 63.26 $ 5.88 $ 5.88 $ 5.40 $ 6.35 $

> 1 Million 4.73 $ 4.74 $ 4.03 $ 5.43 $ 0.67 $ 0.67 $ 0.61 $ 0.73 $

All Sizes 328.83 $ 328.95 $ 286.95 $ 370.19 $ 29.38 $ 29.38 $ 27.37 $ 31.37 $

< 100 7.24 $ 7.24 $ 6.24 $ 8.25 $ 0.55 $ 0.55 $ 0.42 $ 0.64 $

101 500 5.03 $ 5.02 $ 4.37 $ 5.68 $ 0.41 $ 0.42 $ 0.34 $ 0.47 $

501 1,000 2.10 $ 2.10 $ 1.84 $ 2.36 $ 0.17 $ 0.18 $ 0.14 $ 0.20 $

1,001 3,300 1.07 $ 1.06 $ 0.92 $ 1.21 $ 0.07 $ 0.07 $ 0.06 $ 0.08 $

3,301 10K 0.31 $ 0.31 $ 0.27 $ 0.36 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

10,001 50K 0.25 $ 0.25 $ 0.22 $ 0.28 $ 0.02 $ 0.02 $ 0.02 $ 0.02 $

50,001 100K 0.05 $ 0.05 $ 0.04 $ 0.05 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $

100,001 1M 0.25 $ 0.25 $ 0.21 $ 0.28 $ 0.03 $ 0.03 $ 0.03 $ 0.03 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 16.29 $ 16.28 $ 14.11 $ 18.47 $ 1.27 $ 1.29 $ 1.03 $ 1.46 $

345.12 $ 345.23 $ 301.06 $ 388.66 $ 30.65 $ 30.67 $ 28.40 $ 32.83 $

3,838.24 $ 3,837.95 $ 3,505.74 $ 4,173.13 $ 278.13 $ 278.15 $ 265.60 $ 290.59 $

Notes:

Source: Total All values in millions of year 2000 dollars.

Detail may not add exactly to totals due to independent rounding.

Derived by multiplying unit costs in Exhibits 6.9 and 6.10 by Technology Selection Deltas in Appendix C ( results for Alternative 2), summed for all technologies. Ground Water CWSs NTNCWSs Subtotal Source Mean Value Median Value 90 Percent Confidence Bound System Classification System Size ( Population Served) Capital Costs Subtotal Surface Water CWSs NTNCWSs O& M Costs Mean Value Median Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 1d Total Stage 2 DBPR Capital and O& M Costs  PWSs Alternative 3 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

< 100 12.93 $ 12.92 $ 11.76 $ 14.08 $ 2.72 $ 2.72 $ 2.59 $ 2.85 $

101 500 67.74 $ 67.75 $ 62.35 $ 73.18 $ 12.24 $ 12.24 $ 11.65 $ 12.83 $

501 1,000 75.57 $ 75.55 $ 69.68 $ 81.42 $ 10.32 $ 10.32 $ 9.85 $ 10.78 $

1,001 3,300 262.67 $ 262.50 $ 239.28 $ 286.35 $ 38.94 $ 38.95 $ 36.89 $ 40.93 $

3,301 10K 672.91 $ 672.22 $ 610.13 $ 735.88 $ 65.63 $ 65.64 $ 62.25 $ 68.93 $

10,001 50K 1,043.51 $ 1,043.66 $ 955.80 $ 1,130.78 $ 51.69 $ 51.70 $ 49.77 $ 53.60 $

50,001 100K 597.74 $ 597.96 $ 547.67 $ 647.28 $ 29.52 $ 29.53 $ 28.44 $ 30.60 $

100,001 1M 1,630.22 $ 1,630.84 $ 1,496.78 $ 1,762.13 $ 83.22 $ 83.22 $ 80.26 $ 86.18 $

> 1 Million 891.53 $ 891.70 $ 821.69 $ 960.02 $ 58.39 $ 58.39 $ 56.33 $ 60.44 $

All Sizes 5,254.80 $ 5,255.09 $ 4,815.14 $ 5,691.12 $ 352.68 $ 352.71 $ 338.03 $ 367.13 $

< 100 7.77 $ 7.77 $ 7.04 $ 8.49 $ 1.61 $ 1.61 $ 1.54 $ 1.69 $

101 500 26.45 $ 26.44 $ 24.27 $ 28.62 $ 4.66 $ 4.66 $ 4.43 $ 4.88 $

501 1,000 17.25 $ 17.24 $ 15.86 $ 18.63 $ 2.32 $ 2.32 $ 2.22 $ 2.43 $

1,001 3,300 16.61 $ 16.61 $ 15.09 $ 18.12 $ 2.46 $ 2.46 $ 2.33 $ 2.58 $

3,301 10K 14.08 $ 14.09 $ 12.75 $ 15.40 $ 1.28 $ 1.28 $ 1.22 $ 1.35 $

10,001 50K 9.67 $ 9.67 $ 8.85 $ 10.49 $ 0.46 $ 0.47 $ 0.45 $ 0.48 $

50,001 100K 2.64 $ 2.64 $ 2.42 $ 2.86 $ 0.13 $ 0.13 $ 0.12 $ 0.13 $

100,001 1M 4.10 $ 4.10 $ 3.77 $ 4.43 $ 0.21 $ 0.21 $ 0.20 $ 0.22 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 98.57 $ 98.57 $ 90.07 $ 107.05 $ 13.13 $ 13.13 $ 12.51 $ 13.76 $

5,353.37 $ 5,353.66 $ 4,905.21 $ 5,798.16 $ 365.81 $ 365.84 $ 350.54 $ 380.89 $

< 100 11.36 $ 11.35 $ 9.93 $ 12.81 $ 1.15 $ 1.15 $ 1.08 $ 1.22 $

101 500 23.06 $ 23.03 $ 19.93 $ 26.22 $ 2.34 $ 2.34 $ 2.18 $ 2.50 $

501 1,000 12.47 $ 12.46 $ 10.77 $ 14.16 $ 1.18 $ 1.18 $ 1.10 $ 1.26 $

1,001 3,300 24.74 $ 24.73 $ 21.24 $ 28.29 $ 2.17 $ 2.17 $ 2.03 $ 2.32 $

3,301 10K 36.76 $ 36.72 $ 31.16 $ 42.45 $ 1.97 $ 1.97 $ 1.84 $ 2.09 $

10,001 50K 131.91 $ 131.82 $ 115.91 $ 148.02 $ 11.85 $ 11.84 $ 11.07 $ 12.63 $

50,001 100K 36.73 $ 36.70 $ 32.02 $ 41.50 $ 3.24 $ 3.24 $ 3.00 $ 3.48 $

100,001 1M 63.76 $ 63.74 $ 55.30 $ 72.32 $ 6.29 $ 6.29 $ 5.80 $ 6.79 $

> 1 Million 5.46 $ 5.46 $ 4.69 $ 6.24 $ 0.73 $ 0.73 $ 0.66 $ 0.79 $

All Sizes 346.26 $ 346.01 $ 300.95 $ 392.02 $ 30.92 $ 30.91 $ 28.76 $ 33.08 $

< 100 5.31 $ 5.30 $ 4.65 $ 5.98 $ 0.49 $ 0.50 $ 0.43 $ 0.55 $

101 500 4.17 $ 4.17 $ 3.61 $ 4.73 $ 0.41 $ 0.41 $ 0.36 $ 0.44 $

501 1,000 1.86 $ 1.86 $ 1.62 $ 2.11 $ 0.17 $ 0.17 $ 0.15 $ 0.19 $

1,001 3,300 1.05 $ 1.05 $ 0.90 $ 1.20 $ 0.08 $ 0.08 $ 0.07 $ 0.08 $

3,301 10K 0.32 $ 0.32 $ 0.27 $ 0.37 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

10,001 50K 0.30 $ 0.30 $ 0.26 $ 0.34 $ 0.02 $ 0.02 $ 0.02 $ 0.03 $

50,001 100K 0.06 $ 0.06 $ 0.05 $ 0.06 $ 0.01 $ 0.01 $ 0.00 $ 0.01 $

100,001 1M 0.29 $ 0.29 $ 0.24 $ 0.33 $ 0.03 $ 0.03 $ 0.03 $ 0.04 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 13.36 $ 13.35 $ 11.61 $ 15.12 $ 1.22 $ 1.23 $ 1.08 $ 1.35 $

359.61 $ 359.36 $ 312.56 $ 407.14 $ 32.14 $ 32.14 $ 29.84 $ 34.43 $

5,712.98 $ 5,713.02 $ 5,217.77 $ 6,205.30 $ 397.95 $ 397.98 $ 380.39 $ 415.32 $

Notes:

Source: Total All values in millions of year 2000 dollars.

Detail may not add exactly to totals due to independent rounding.

technologies. Ground Water CWSs NTNCWSs Subtotal Source Mean Value Median Value 90 Percent Confidence Bound System Classification System Size ( Population Served) Capital Costs Subtotal Surface Water CWSs NTNCWSs O& M Costs Mean Value Median Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 1e Total Stage 2 DBPR Capital and O& M Costs  PWSs IDSE Sensitivity Analysis 1 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

< 100 1.08 $ 1.08 $ 0.86 $ 1.29 $ 0.21 $ 0.21 $ 0.20 $ 0.23 $

101 500 5.12 $ 5.11 $ 4.36 $ 5.86 $ 0.95 $ 0.95 $ 0.88 $ 1.02 $

501 1,000 4.76 $ 4.76 $ 4.07 $ 5.44 $ 0.74 $ 0.74 $ 0.69 $ 0.79 $

1,001 3,300 17.65 $ 17.63 $ 15.28 $ 20.07 $ 2.57 $ 2.57 $ 2.39 $ 2.74 $

3,301 10K 42.91 $ 42.91 $ 37.45 $ 48.47 $ 4.00 $ 4.00 $ 3.73 $ 4.27 $

10,001 50K 88.55 $ 88.53 $ 77.56 $ 99.57 $ 4.13 $ 4.14 $ 3.90 $ 4.37 $

50,001 100K 49.12 $ 49.12 $ 42.94 $ 55.30 $ 2.15 $ 2.15 $ 2.02 $ 2.28 $

100,001 1M 129.90 $ 129.91 $ 113.36 $ 146.45 $ 4.94 $ 4.94 $ 4.62 $ 5.26 $

> 1 Million 73.81 $ 73.82 $ 64.21 $ 83.25 $ 2.98 $ 2.98 $ 2.76 $ 3.20 $

All Sizes 412.88 $ 412.85 $ 360.08 $ 465.70 $ 22.67 $ 22.68 $ 21.18 $ 24.15 $

< 100 0.67 $ 0.67 $ 0.54 $ 0.80 $ 0.13 $ 0.13 $ 0.12 $ 0.14 $

101 500 1.96 $ 1.96 $ 1.68 $ 2.25 $ 0.36 $ 0.36 $ 0.33 $ 0.38 $

501 1,000 1.09 $ 1.09 $ 0.93 $ 1.24 $ 0.16 $ 0.16 $ 0.15 $ 0.17 $

1,001 3,300 1.12 $ 1.12 $ 0.97 $ 1.27 $ 0.16 $ 0.16 $ 0.15 $ 0.17 $

3,301 10K 0.88 $ 0.88 $ 0.77 $ 1.00 $ 0.08 $ 0.08 $ 0.07 $ 0.08 $

10,001 50K 0.80 $ 0.80 $ 0.70 $ 0.89 $ 0.03 $ 0.03 $ 0.03 $ 0.04 $

50,001 100K 0.21 $ 0.21 $ 0.18 $ 0.24 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

100,001 1M 0.33 $ 0.33 $ 0.29 $ 0.37 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 7.06 $ 7.06 $ 6.06 $ 8.06 $ 0.95 $ 0.95 $ 0.88 $ 1.01 $

419.94 $ 419.91 $ 366.14 $ 473.76 $ 23.62 $ 23.62 $ 22.06 $ 25.16 $

< 100 11.06 $ 11.05 $ 9.66 $ 12.47 $ 1.22 $ 1.22 $ 1.14 $ 1.30 $

101 500 23.91 $ 23.88 $ 20.58 $ 27.24 $ 2.51 $ 2.51 $ 2.34 $ 2.69 $

501 1,000 13.19 $ 13.17 $ 11.35 $ 15.04 $ 1.28 $ 1.28 $ 1.19 $ 1.37 $

1,001 3,300 21.23 $ 21.20 $ 17.74 $ 24.69 $ 1.72 $ 1.72 $ 1.58 $ 1.85 $

3,301 10K 31.83 $ 31.81 $ 26.16 $ 37.44 $ 1.45 $ 1.45 $ 1.34 $ 1.55 $

10,001 50K 89.54 $ 89.57 $ 81.02 $ 98.14 $ 7.95 $ 7.95 $ 7.54 $ 8.38 $

50,001 100K 23.78 $ 23.78 $ 21.37 $ 26.20 $ 2.11 $ 2.11 $ 1.98 $ 2.24 $

100,001 1M 41.39 $ 41.40 $ 37.00 $ 45.80 $ 4.12 $ 4.12 $ 3.85 $ 4.40 $

> 1 Million 3.50 $ 3.50 $ 3.09 $ 3.91 $ 0.47 $ 0.47 $ 0.44 $ 0.51 $

All Sizes 259.44 $ 259.37 $ 227.96 $ 290.93 $ 22.84 $ 22.84 $ 21.40 $ 24.29 $

< 100 5.14 $ 5.14 $ 4.52 $ 5.78 $ 0.54 $ 0.54 $ 0.48 $ 0.59 $

101 500 4.34 $ 4.34 $ 3.76 $ 4.94 $ 0.44 $ 0.44 $ 0.40 $ 0.48 $

501 1,000 1.98 $ 1.98 $ 1.71 $ 2.24 $ 0.19 $ 0.19 $ 0.17 $ 0.20 $

1,001 3,300 0.89 $ 0.89 $ 0.75 $ 1.04 $ 0.06 $ 0.06 $ 0.05 $ 0.07 $

3,301 10K 0.28 $ 0.28 $ 0.23 $ 0.33 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

10,001 50K 0.19 $ 0.19 $ 0.17 $ 0.21 $ 0.02 $ 0.02 $ 0.01 $ 0.02 $

50,001 100K 0.04 $ 0.04 $ 0.03 $ 0.04 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $

100,001 1M 0.18 $ 0.18 $ 0.16 $ 0.20 $ 0.02 $ 0.02 $ 0.02 $ 0.02 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 13.05 $ 13.04 $ 11.33 $ 14.79 $ 1.27 $ 1.27 $ 1.15 $ 1.39 $

272.49 $ 272.41 $ 239.29 $ 305.71 $ 24.11 $ 24.11 $ 22.54 $ 25.68 $

692.43 $ 692.32 $ 605.43 $ 779.47 $ 47.73 $ 47.73 $ 44.60 $ 50.84 $

Notes:

Source: Total All values in millions of year 2000 dollars.

Detail may not add exactly to totals due to independent rounding.

Derived by multiplying unit costs in Exhibits 6.9 and 6.10 by Technology Selection Deltas in Appendix C ( results for IDSE Sensitivity Analysis 1), summed for all technologies. Ground Water CWSs NTNCWSs Subtotal Source Mean Value Median Value 90 Percent Confidence Bound System Classification System Size ( Population Served) Capital Costs Subtotal Surface Water CWSs NTNCWSs O& M Costs Mean Value Median Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 1f Total Stage 2 DBPR Capital and O& M Costs  PWSs IDSE Sensitivity Analysis 2 Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile)

< 100 1.51 $ 1.50 $ 1.27 $ 1.74 $ 0.31 $ 0.31 $ 0.29 $ 0.32 $

101 500 9.61 $ 9.61 $ 8.64 $ 10.57 $ 1.46 $ 1.46 $ 1.38 $ 1.55 $

501 1,000 9.92 $ 9.92 $ 8.99 $ 10.86 $ 1.21 $ 1.21 $ 1.15 $ 1.27 $

1,001 3,300 24.77 $ 24.74 $ 22.08 $ 27.49 $ 3.98 $ 3.98 $ 3.76 $ 4.19 $

3,301 10K 63.92 $ 63.90 $ 57.42 $ 70.60 $ 6.41 $ 6.41 $ 6.07 $ 6.74 $

10,001 50K 156.49 $ 156.46 $ 141.52 $ 171.66 $ 7.00 $ 7.00 $ 6.69 $ 7.31 $

50,001 100K 87.38 $ 87.36 $ 78.92 $ 95.94 $ 3.69 $ 3.69 $ 3.52 $ 3.85 $

100,001 1M 231.46 $ 231.48 $ 208.59 $ 254.49 $ 8.63 $ 8.63 $ 8.21 $ 9.06 $

> 1 Million 129.91 $ 129.92 $ 116.57 $ 143.36 $ 5.28 $ 5.28 $ 4.99 $ 5.57 $

All Sizes 714.95 $ 714.89 $ 644.02 $ 786.70 $ 37.95 $ 37.96 $ 36.05 $ 39.86 $

< 100 0.92 $ 0.92 $ 0.79 $ 1.06 $ 0.18 $ 0.18 $ 0.17 $ 0.19 $

101 500 3.72 $ 3.72 $ 3.35 $ 4.08 $ 0.56 $ 0.56 $ 0.52 $ 0.59 $

501 1,000 2.25 $ 2.25 $ 2.04 $ 2.46 $ 0.27 $ 0.27 $ 0.26 $ 0.28 $

1,001 3,300 1.57 $ 1.57 $ 1.39 $ 1.74 $ 0.25 $ 0.25 $ 0.24 $ 0.27 $

3,301 10K 1.32 $ 1.32 $ 1.18 $ 1.46 $ 0.12 $ 0.12 $ 0.12 $ 0.13 $

10,001 50K 1.42 $ 1.42 $ 1.28 $ 1.55 $ 0.06 $ 0.06 $ 0.06 $ 0.06 $

50,001 100K 0.37 $ 0.37 $ 0.34 $ 0.41 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

100,001 1M 0.58 $ 0.58 $ 0.53 $ 0.64 $ 0.02 $ 0.02 $ 0.02 $ 0.02 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 12.16 $ 12.16 $ 10.89 $ 13.40 $ 1.48 $ 1.48 $ 1.40 $ 1.56 $

727.11 $ 727.05 $ 654.91 $ 800.10 $ 39.43 $ 39.44 $ 37.45 $ 41.42 $

< 100 12.09 $ 12.11 $ 10.57 $ 13.61 $ 1.31 $ 1.31 $ 1.22 $ 1.39 $

101 500 24.43 $ 24.44 $ 21.01 $ 27.79 $ 2.56 $ 2.56 $ 2.38 $ 2.74 $

501 1,000 13.44 $ 13.45 $ 11.58 $ 15.30 $ 1.30 $ 1.30 $ 1.21 $ 1.39 $

1,001 3,300 21.38 $ 21.39 $ 17.90 $ 24.81 $ 1.73 $ 1.73 $ 1.60 $ 1.86 $

3,301 10K 32.02 $ 32.01 $ 26.41 $ 37.56 $ 1.46 $ 1.46 $ 1.35 $ 1.56 $

10,001 50K 100.67 $ 100.65 $ 91.08 $ 110.33 $ 8.95 $ 8.94 $ 8.48 $ 9.43 $

50,001 100K 26.69 $ 26.71 $ 23.96 $ 29.45 $ 2.37 $ 2.37 $ 2.23 $ 2.52 $

100,001 1M 46.13 $ 46.16 $ 41.17 $ 51.12 $ 4.61 $ 4.60 $ 4.30 $ 4.91 $

> 1 Million 3.90 $ 3.90 $ 3.44 $ 4.36 $ 0.53 $ 0.53 $ 0.49 $ 0.56 $

All Sizes 280.76 $ 280.83 $ 247.12 $ 314.33 $ 24.81 $ 24.80 $ 23.26 $ 26.37 $

< 100 5.63 $ 5.63 $ 4.94 $ 6.31 $ 0.57 $ 0.57 $ 0.51 $ 0.63 $

101 500 4.44 $ 4.44 $ 3.84 $ 5.03 $ 0.45 $ 0.45 $ 0.40 $ 0.49 $

501 1,000 2.02 $ 2.02 $ 1.75 $ 2.28 $ 0.19 $ 0.19 $ 0.17 $ 0.21 $

1,001 3,300 0.90 $ 0.90 $ 0.75 $ 1.05 $ 0.06 $ 0.06 $ 0.05 $ 0.07 $

3,301 10K 0.28 $ 0.28 $ 0.23 $ 0.33 $ 0.01 $ 0.01 $ 0.01 $ 0.01 $

10,001 50K 0.21 $ 0.21 $ 0.19 $ 0.24 $ 0.02 $ 0.02 $ 0.02 $ 0.02 $

50,001 100K 0.04 $ 0.04 $ 0.04 $ 0.04 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $

100,001 1M 0.21 $ 0.20 $ 0.18 $ 0.23 $ 0.02 $ 0.02 $ 0.02 $ 0.03 $

> 1 Million  $  $  $  $  $  $  $  $

All Sizes 13.73 $ 13.73 $ 11.91 $ 15.52 $ 1.32 $ 1.32 $ 1.18 $ 1.44 $

294.48 $ 294.56 $ 259.03 $ 329.85 $ 26.12 $ 26.12 $ 24.44 $ 27.81 $

1,021.59 $ 1,021.61 $ 913.95 $ 1,129.95 $ 65.56 $ 65.56 $ 61.90 $ 69.23 $

Notes:

Source: Total All values in millions of year 2000 dollars.

Detail may not add exactly to totals due to independent rounding.

Derived by multiplying unit costs in Exhibits 6.9 and 6.10 by Technology Selection Deltas in Appendix C ( results for IDSE Sensitivity Analysis 2), summed for all technologies. Ground Water CWSs NTNCWSs Subtotal Source Mean Value Median Value 90 Percent Confidence Bound System Classification System Size ( Population Served) Capital Costs Subtotal Surface Water CWSs NTNCWSs O& M Costs Mean Value Median Value 90 Percent Confidence Bound Economic Analysis for the Stage 2 DBPR Proposal July 2003 < 100 0.19 $ 0.37 $ ( 0.02) $  $

101 500 0.32 $ 0.80 $ ( 0.00) $ 0.00 $

501 1,000 0.23 $ 2.83 $ 0.40 $ 0.00 $

1,001 3,300 0.43 $ 5.31 $ 0.74 $ 0.00 $

3,301 10K 0.33 $ 5.88 $ 0.76 $ 0.00 $

10,001 50K 0.29 $ 29.53 $ ( 2.48) $ 0.01 $

50,001 100K 0.07 $ 8.81 $ ( 0.62) $ 0.00 $

100,001 1M 0.06 $ 8.43 $ ( 0.03) $ 0.00 $

> 1 Million 0.00 $ 0.64 $ ( 0.00) $ 0.00 $

All Sizes 1.94 $ 62.61 $ ( 1.24) $ 0.02 $

< 100 0.04 $  $  $  $

101 500 0.04 $  $  $  $

501 1,000 0.02 $  $  $  $

1,001 3,300 0.01 $  $  $  $

3,301 10K 0.00 $  $ 0.01 $  $

10,001 50K 0.00 $ 0.11 $ 0.01 $  $

50,001 100K 0.00 $ 0.02 $ 0.00 $  $

100,001 1M 0.00 $ 0.04 $ 0.01 $  $

> 1 Million  $  $  $  $

All Sizes 0.11 $ 0.17 $ 0.03 $  $

2.04 $ 62.78 $ ( 1.22) $ 0.02 $

< 100 0.95 $ 0.40 $ ( 0.00) $  $

101 500 1.48 $ 0.69 $ 0.04 $  $

501 1,000 0.59 $ 1.07 $ 0.64 $  $

1,001 3,300 0.70 $ 1.27 $ 0.76 $  $

3,301 10K 0.33 $ 0.61 $ 0.38 $  $

10,001 50K 0.18 $ 1.99 $ 2.03 $  $

50,001 100K 0.02 $ 0.21 $ 0.21 $  $

100,001 1M 0.01 $ 0.32 $ 0.20 $  $

> 1 Million 0.00 $ 0.02 $ 0.01 $  $

All Sizes 4.27 $ 6.57 $ 4.27 $  $

< 100 0.46 $  $  $  $

101 500 0.33 $  $ 0.00 $  $

501 1,000 0.10 $  $ 0.00 $  $

1,001 3,300 0.04 $  $ 0.00 $  $

3,301 10K 0.00 $ 0.00 $ 0.00 $  $

10,001 50K 0.00 $ 0.00 $ 0.00 $  $

50,001 100K 0.00 $ 0.00 $ 0.00 $  $

100,001 1M 0.00 $ 0.00 $  $  $

> 1 Million  $  $  $  $

All Sizes 0.93 $ 0.00 $ 0.01 $  $

5.20 $ 6.57 $ 4.28 $  $

7.24 $ 69.36 $ 3.06 $ 0.02 $

Notes:

Source: Exhibit K. 1g Total Stage 2 DBPR Implementation, IDSE, Additional Routine Monitoring, and Significant Excursion Evaluation Costs  PWSs Total Implementation Costs Total IDSE Costs Annual Additional Routine Monitoring Costs Annual Significant Excursion Evaluation Costs All Alternatives System Classification System Size ( population served) Source Ground Water CWSs NTNCWSs Subtotal Total All values in millions of year 2000 dollars.

Detail may not add exactly to totals due to independent rounding.

Derived from Exhibit H. 14b. Subtotal NTNCWSs CWSs Surface Water Economic Analysis for the Stage 2 DBPR Proposal July 2003 Total Implementation Costs Total IDSE Costs Annual Compliance Monitoring Costs 6.68 $ 7.71 $ 0.34 $

Notes: All values in millions of year 2000 dollars.

Source: Exhibit H. 15. Exhibit K. 1h Total Implementaion, IDSE, and Compliance Monitoring Costs  Primacy Agencies All Alternatives Economic Analysis for the Stage 2 DBPR Proposal July 2003 Section K. 2 Cost Projections ( Preferred Alternative)

Economic Analysis for the Stage 2 DBPR Proposal July 2003 Exhibit K. 2a Projections of Stage 2 DBPR PWS Costs ( Surface Water CWSs Serving < 100 People)

Preferred Alternative All Stage 2 DBPR Costs Lower ( 5th % tile) Upper ( 95th % tile) Lower ( 5th % tile) Upper ( 95th % tile) Monitori ng Significa nt Excursio Lower ( 5th % tile) Upper ( 95th % tile)

2003  $  $  $  $  $  $ 0.07 $ 0.14 $  $  $ 0.21 $ 0.21 $ 0.21 $

2004  $  $  $  $  $  $  $ 0.14 $  $  $ 0.14 $ 0.14 $ 0.14 $

2005 0.08 $ 0.07 $ 0.10 $ 0.02 $ 0.02 $ 0.02 $ 0.02 $  $  $  $ 0.12 $ 0.11 $ 0.14 $

2006 0.08 $ 0.07 $ 0.10 $ 0.03 $ 0.03 $ 0.03 $ 0.07 $ 0.09 $  $  $ 0.28 $ 0.26 $ 0.30 $

2007 0.08 $ 0.07 $ 0.10 $ 0.05 $ 0.05 $ 0.05 $  $  $  $  $ 0.13 $ 0.11 $ 0.15 $

2008 0.08 $ 0.07 $ 0.10 $ 0.06 $ 0.06 $ 0.07 $ 0.02 $  $  $  $ 0.17 $ 0.15 $ 0.19 $

2009 0.08 $ 0.07 $ 0.10 $ 0.08 $ 0.08 $ 0.08 $  $  $  $  $ 0.16 $ 0.14 $ 0.18 $

2010 0.08 $ 0.07 $ 0.10 $ 0.10 $ 0.09 $ 0.10 $  $  $ ( 0.01) $  $ 0.17 $ 0.15 $ 0.19 $

2011 0.08 $ 0.07 $ 0.10 $ 0.11 $ 0.11 $ 0.12 $  $  $ ( 0.02) $  $ 0.18 $ 0.15 $ 0.20 $

2012 0.08 $ 0.07 $ 0.10 $ 0.13 $ 0.12 $ 0.13 $  $  $ ( 0.02) $  $ 0.19 $ 0.17 $ 0.22 $

2013 0.08 $ 0.07 $ 0.10 $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.21 $ 0.18 $ 0.23 $

2014  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2015  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2016  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2017  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2018  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2019  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2020  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2021  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2022  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2023  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2024  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2025  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2026  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

2027  $  $  $ 0.14 $ 0.14 $ 0.15 $  $  $ ( 0.02) $  $ 0.12 $ 0.12 $ 0.13 $

Note: All values in millions of year 2000 dollars.