JURC PETITIONER'S EXHIBIT 0.~~.....L--- Petitioner's Exhibit 17 7 TOWN OF CEDAR LAKE Preliminary Engineering Report Cedar Lake Water Utility System Improvements July 2020 Prepared by: !,?.!! !!e.!,~JI ~ •• !.'!!; ru.E.~~ ~ Ph: (219) 844 8680 • Fax: (219) 844 7754 · e-mail: [email protected] Your Vision • Our Focus Table of Contents 1. Project Location ............................................................................................................................................ 6 2. Current Needs ............................................................................................................................................... 6 2.1. Existing System ...................................................................................................................................... 6 2.1.a. Distribution System ....................................................................................................................... 6 2.1.b. Supply System ............................................................................................................................... 7 2.1.c. Storage System ............................................................................................................................. 8 2.1.d. Treatment Systems ....................................................................................................................... 8 2.1.e. Document Needs .......................................................................................................................... 8 2.2. Current Population ................................................................................................................................ 9 2.3. Existing Consumption ............................................................................................................................ 9 2.3.a. Pumped vs. Sold ............................................................................................................................ 9 2.3.b. Estimated Public Water Use (Flushing, Fire Protection) ............................................................... 9 2.3.c. Percent Water Loss ....................................................................................................................... 9 2.3.d. Domestic, Commercial/ Industrial ............................................................................................... 9 2.3.e. Average Design Flow ..................................................................................................................... 9 2.3.f. Peak Design Flow .......................................................................................................................... 9 2.3.g. WTP Flow and Backwash Water ................................................................................................. 10 2.4. Current Significant Water Users ......................................................................................................... 10 2.5. Layouts and Site Maps ........................................................................................................................ 10 3. Future Needs ...............................................................................................................................................10 3.1. Population Growth .............................................................................................................................. 10 3.1.a. Census Data ................................................................................................................................. 10 3.1.b. Building Permits .......................................................................................................................... 11 3.1.c. Current Development Trends ..................................................................................................... 11 3.1.d. Future Significant Users .............................................................................................................. 11 3.2. 20-Year Design Flows .......................................................................................................................... 11 3.2.a. West Side .................................................................................................................................... 12 3.2.b. Eastside .......................................................................................................................................12 3.3. 20-Year System Needs ........................................................................................................................ 12 3.3.a. Westside ..................................................................................................................................... 12 3.3.b. East Side ...................................................................................................................................... 12 4. Evaluation of Alternatives ........................................................................................................................... 13 P a g e I 1 of 22 I 4.1. Feasible alternatives ........................................................................................................................... 13 4.1.a. No Action ..................................................................................................................................... 13 4.1.b. Optimum Operation of Existing Facility ...................................................................................... 13 4.1.c. Rehabilitation vs Replacement ................................................................................................... 13 4.1.d. Expansion/ Upgrade ................................................................................................................... 13 4.1.e. Water Loss ................................................................................................................................... 13 4.1.f. Regionalization ............................................................................................................................ 13 4.1.g. Treatment Alternatives ............................................................................................................... 13 4.1.h. Sludge Handling .......................................................................................................................... 14 4.1.i. Discharge Options ....................................................................................................................... 14 4.2. Rational for Alternative Selected ........................................................................................................ 14 4.2.a. Monetary .................................................................................................................................... 14 4.2.b. Technical ..................................................................................................................................... 14 4.2.c. Reliability ..................................................................................................................................... 14 4.2.d. Ability to Implement ................................................................................................................... 14 4.2.e. Environmental Impacts ............................................................................................................... 14 5. Evaluation of Environmental lmpacts ......................................................................................................... 14 5.1. Proposed Project Site Drawings .......................................................................................................... 14 5.2. Environmental lmpact ......................................................................................................................... 14 5.2.a. Disturbed/Undisturbed Land ...................................................................................................... 14 5.2.b. Historic/Architectural Resources ................................................................................................ 15 5.2.c. Wetlands ..................................................................................................................................... 16 5.2.d. Surface Water ............................................................................................................................. 16 5.2.e. Ground Water ............................................................................................................................. 16 5.2.f. 100- Year Floodplain ................................................................................................................... 16 5.2.g. Plants and Animals ...................................................................................................................... 16 5.2.h. Farmland ..................................................................................................................................... 16 5.2.i. Air Quality ................................................................................................................................... 17 5.2.j. Open Space & Recreational Opportunities ................................................................................. 17 5.2.k. Lake Michigan Costa I Management Zone ................................................................................... 17 5.2.1. National