Summary of Design Criteria
| Raw Water Intake Pump Station (Existing) Number of Pumps Pump Type Capacity (each) TDH (each) Motor Size Motor Speed | 3 duty, 1 standby Vertical Turbine 2 @ 1,100 gpm, 1 @ 645 gpm, 1 @ 400 gpm 235 ft 2 @ 75 HP, 1 @ 50 HP, 1 @ 30 HP Constant speed |
| Chemical Feed Systems Alum Feed System Form Chemical Storage Tank Pump Quantity Pump Type Design Concentration Addition Point | Liquid 275-gal tote or 50-gal drum 1 duty Diaphragm Metering Pump 1-5 mg/L Raw Water |
| Polymer Feed System 1 (currently Aqua Hawk 2987) Form Chemical Storage Tank Pump Quantity Pump Type Design Concentration Addition Point | Liquid Cationic 275-gal tote or 50-gal drum 1 duty Diaphragm Metering Pump 1-5 mg/L Raw Water |
| Polymer Feed System 2 (currently Vikchem 201) Form Chemical Storage Tank Pump Quantity Pump Type Design Concentration Addition Point | Dry Anionic 50-gal tank & mixer 1 duty Diaphragm Metering Pump 0.1-0.2 mg/L Raw Water |
| Filter Aid Feed System Form Chemical Storage Tank Pump Quantity Pump Type Addition Point | Liquid 50-gal tank 1 duty Diaphragm Metering Pump Treated Water |
| Contact Adsorption Clarifiers (CAC) Treatment Capacity CAC Firm Capacity | 2.65 MGD (21 hrs x 3 trains) |
| CAC Equipment Type Quantity Unit Capacity (each) Firm Capacity Dimensions (each tank) Dry Weight (each tank) Operating Weight (each tank) Tank Material Loading Rate Capacity | Upflow, buoyant media 4 (3 duty, 1 standby) 700 gpm 2,100 gpm 12 ft (L) x 9 ft (W) x 9 ft (H) 18,500 lbs 45,000 lbs Painted Steel 10 gpm/ft2 |
| CAC Backwash Type Rate (each) Flow Required Duration Blower Quantity Blower Capacity Blower Motor | Water and air 10 gpm/ ft2 700 gpm ~ 10 minutes 3 (2 duty, 1 standby) 350 scfm each 20 HP, constant speed |
| CAC Buoyant Media Type Depth Area (each) | 50% Fiber Balls and 50% Plastic Beads 48-inches 70 ft2 |
| Media Filtration Media Filters Type Quantity Dimensions (each) Filter Area (each) Peak Filtration Rate (@ 2,100 gpm) Backwash Rate (each) Media Type Underdrain System Water Depth Over Media Filter Headloss Available (max.) | Rapid rate gravity 4 12 ft (L) x 15 ft (W) x 18 ft (D) 180 ft2 3.9 gpm/ft2 20 gpm/ft2 (max) Dual media (anthracite/silica sand) Thermoplastic block, media retaining 11.5 ft 8.0 ft |
| Filter Backwash Pumps Quantity Type Capacity (each) Head Motor | 3 (lead, lag, standby) Vertical in-line 1,800 gpm 12 feet 15 HP, constant speed |
| Filter Backwash Air Scour Blower Quantity Type Capacity Backwash Air Rate (per filter) Pressure Motor | 1 duty Rotary lobe 720 scfm 4 scfm/ ft2 7.5 psi 50 HP, constant speed |
| Chlorine Equipment Regulator Capacity (max.) Type Number | 100 lbs/day Cylinder mount, vacuum 2 |
| Automatic Switchover Valve Capacity (max.) Number | 100 lbs/day 1 |
| Auto Control Valve Capacity (max.) Configuration Number | 100 lbs/day Flow/residual pacing 1 (standby manual rotometer) |
| Scale Capacity Number (cylinders) | 300 lbs 2 |
| Gas Monitoring Chlorine Number | 0-10 ppm 1 |
| High Lift Pumps Quantity Type Capacity (each) Head Motor | 3 Vertical turbine 1,200 gpm 190 ft 75 HP, variable speed |
| Backwash Waste Pump Station Backwash Waste Pumps Quantity Type Capacity (each) Head Motor | 2 Vertical turbine 500 gpm 142 ft 25 HP, variable speed |
| Highland Booster Pump Station Booster Pumps Quantity Type Capacity (each) Head Motor | 3 Horizontal split case 1,000 gpm 140 ft 75 HP, variable speed |