CLIENT NAME - Sarasota.WaterAtlas.org

• They often have to flush hydrants in southern portions of town to keep chlorineresiduals up.• The pumps at PS6 are at a slightly higher elevation that GST6. As the tank approachesits minimum level, the pumps start cavitating.• As the facility grows they will need more staff. Currently they have 14 full-time staffincluding 2 supervisors, 11 operators/maintenance, and 1 pump mechanic. They aregoing to get 2 new positions in October. They have a lot of redundancy now, somaintaining things can be done as they are able, but with an increase in production theywill need to be able to respond more quickly.Potential changes to be made in facility suggested by facility staff:• Could increase capacity by increasing voltage, obtaining more removal, and thenbypassing water and blending. However, a bypass/blending pipe was not included inthe original facility.• A new storage tank is needed at Carlton. They turn over the existing tank 2.5 times perday.• A high pressure blowoff or air release would be helpful in the two EDR feed headers.• Watering days are currently Sunday and Tuesday. This creates very high demandsduring dry months. It would be better to stagger watering days from Monday-Friday.They have suggested correlating watering day with last digit of address (0&1 onMonday, 2&3 on Tuesday, etc).Other Notes• The facility has been run in a manual mode for the past 2 years. They flow pace everychemical manually. Facility staff feel that manual control has some advantages. Theconstantly varying flow of the EDR units makes it hard to use automatic equipment thatoperates best with a constant flow. They have tried flow pacing the chemicals on theproduct side of the flow, but had little success. They are going to start flow pacing thepretreatment chemicals again soon.• Distribution system staff operate the system to keep the water level in the Universitytank at 25-29’ because they believe it short-circuits. They also get poor mixing in thistank due to the locations of the chemical feed.H:\Client\SAR Co_SAR\6873C00 WATER SUPPLY MASTER PLAN UPDATE\Deliverables\TM 2 - Water System Assets\Final\Appendix B -Final.doc