Water Treatment & Distribution System Overview

Two units located at separate sites provide for continuous monitoring and control of the water and sewer systems.

Primary water source

Seven wells with capacity of over 10 MGD

Water conveyed to treatment plant via a river crossing and 2 miles of raw water line

Installation of raw water line in 1975

Capable of treating 5.4 MGD

Designed for Iron and Manganese Removal

State of Ohio Class III plant (second highest level of plant)

Clearwell

Clearwell

Water Treatment Plant

Medium Service Booster Station

AbandonedClearwell

Prechlorination for Iron & Manganese Reaction

KMnO4 for Iron & Manganese Reaction

Polymer & Chlorine for Filter Conditioning

Chlorine for DisinfectionFluoride for Dental Health

8 multi media filters

Provide iron & manganese removal

Typical Filter Configuration of gravel, garnet, sand and anthracite

o Done based on effluent turbidityo Water is pushed back through

filters removing build up of iron and manganese

o Used water is sent to the sewage system

Potassium Permanganate Anionic Polymer Chlorine (Pre and Post) Fluoride

Used for manganese removal

Strong Oxidizer Not combustible

but could enhance combustion of other materials

Gives off irritating fumes in fire

Use gaseous chlorine for disinfection and treatment

Strong Oxidant Not combustible

but reacts violently w/combustibles

High health hazard

Add hydrofluosilicic Acid for dental health

Corrosive Not flammable but

reacts with many metals to produce flammable and explosive hydrogen gas

Used as a filter aid

Maintain OEPA bacteriological and chemical certifications

Conduct daily testing for chlorine, fluoride, pH, turbidity and other process controls

Parameter Typical Results

Iron 0.08 to 0.12 mg/lManganese 0.3 to 1.5 mg/lpH 7.5 to 8.0Chlorine NoneFluoride 0.2 mg/l

Parameter Typical Results

Iron Below detectable limit

Manganese 0.02 mg/lpH 7.5 to 8.0Chlorine 0.8 mg/lFluoride 1 mg/l

Two 1.5 million gallon clearwells used to store finished water

Due to the geography of the city, three different pressure zones have been defined – low, medium and high.

Some parts of the system operate off of gravity.

Other parts must have assistance so booster pumps are used.

Water pumped and stored in tanks provides pressure head.

Located at the Water Treatment Plant

Pumps water to the low service area and Fairfield Park Tank

A – From PlantB – Booster StationC – To Primary Mains/ CustomersD – Water Tower

Water Towers are tall to provide pressure. Each foot of a height provides .43 pounds of pressure. So a tank that is 100 foot tall has a pressure of 43.3 pounds at its base.

There is only one pipe through which water both goes in and comes of our water towers. If water is being pumped from the treatment plant and the demand does not require it, it will go into a water tower. However, if there is more demand than the treatment plant can supply then water will be taken from the tower.

Services low service area

0.5 million gallons

Across from the Water Treatment Plant

Services Medium Service & Rona Hills Tank

2 million gallons ground storage tank

Services medium service

Old Fire Station Services Medium

Service Pumps to Five Points

Tanks

Two towers• .75 MG• .25 MG

Services Medium Service

Hosts city antennas

Located near Wright State University

Services High Service Area

Pumps to Southwest Tank

0.5 million gallons Actually located in

Beavercreek Services high

service