1. Water System Planning Study
December 3, 2009

2. Agenda Purpose and Need Scope of Work Raw Water System Existing WTP
Regulatory Issues
Site Selection
Proposed WTP
Finished Water Transmission
Proposed Improvements
Costs
Next Steps / Schedule

3. Purpose and Need
WTP near capacity (currently 75%; KDOW sanctions at 85%)
Aging water infrastructure
Increasing demand
Regulatory changes

4. Purpose and Need (cont.)
Reliable supply needed
Bluegrass Water Supply Commission
Other alternatives studied
City decided to build new WTP 5/08
Keep existing WTP in service

5. Scope of Work Evaluate existing systems and future needs
Assess new and future regulatory changes
Identify best site for WTP
Recommend necessary system improvements

6. Raw Water Sources Kentucky River intake OK
Maximum permitted withdrawal OK
Changes in next permit (no step down)
Concerns – Dam #10 condition, spills

7. Raw Water Sources Reservoir as backup supply Significant current leaks
Siltation – lower intake clogged
Aesthetic water quality issues 9 months of the year

8. Raw Water Pump Station 2 existing pumps – 5.5 mgd firm capacity
Originally designed for 4 pumps – 15 mgd firm capacity
Recommend 1 new pump for 2 operating with 1 standby – could deliver 14+ mgd to new WTP

9. Raw Water Transmission Main
Existing 18” line over 50 years old
Limited existing capacity
New 30” needed to new site (lifespan 50+ years)
Existing 18” to continue serving existing WTP and reservoir

10. Existing Water Treatment Plant
Initially constructed 1891
Last major upgrade 1974
Currently rated at 5.3 mgd
Reliable, sustainable 3.2 mgd

11. Existing Water Treatment Plant
Need interim improvements:
Replace filter media
Sludge removal equipment
Potential expansion not feasible on current site, based on 1999 studies