Scioto Water, Inc. Misc. Water Improvements and Water Treatment Facilities (2006-present) 

RLM Engineering, Inc. provided design services for several water main extensions for the Scioto Water, Inc. Some of the projects were financed in-house, but Scioto Water, Inc. also received ARRA (stimulus) funding for two larger water main extensions. Another project extended service to an ODOT rest park that was funded through ODOT.

The Phase V Improvements were separated into two distinct funding projects in consecutive years. The Rose Hill Treatment and Distribution Improvements ($6,500,000) are nearly complete and the East End Treatment, Wells, and Distribution Improvements ($10,500,000) are under construction. We provided planning, design, bidding, and construction services.

The Rose Hill Water Treatment Facility Improvements provided an increase in treatment capacity and a change in water treatment components. The existing pressure filters were removed and a new building constructed to house new gravity filters and intermediate pumps. An aeration tower and detention tank was constructed to reduce the demand for chemicals for oxidation of iron and manganese. Increased clearwell capacity, pumping capacity, and wastewater treatment was provided.

The East End Project added groundwater wells, treatment facility, and water transmission and storage improvements. Scioto Water had purchased water for the East End Area of the system, but had been working toward creating an independence from the purchaser as well as providing an improved water quality to the users. RLM Engineering, Inc. provided the information to gain funding and the design required to incorporate the improvements into the existing distribution system. The Phase V project was broken into separate divisions of work. Pertinent construction contracts information follows.

Project	Bid Cost	Final Cost
Rose Hill Water Treatment Improvements	$ 3,747,000	$ 3,831,506
Rose Hill Water Distribution Improvements	$ 1,269,704	$ 1,441,504
Rose Hill Storage Improvements	$ 653,163	$ 681,439
East End Water Treatment Facility	$ 4,434,000	3
East End Production Wells	$ 524,009	3
East End Storage Improvements	$ 864,670	3
East End Water Distribution Improvements	$ 2,242,880	3

 

Notation Chart
1	The client maximized the funding available and included additional water mains after bidding.
2	The client maximized the funding available and opted for a larger tank capacity than originally bid.
3	Project is currently under construction.

A meter replacement project is currently underway for the Scioto Water, Inc. Distribution System. Approximately, 7500 radio read meters are replacing existing meters. The project will reduce expenses and time in meter reading as well as create better tracking of water loss. The project is anticipated to increase revenue from more accurate meters as well as decrease expenses to the utility.

Iron Removal Treatment Example (2013)

The Scioto Water, Inc. owns and operates two iron removal and zeolite softening facilities. RLM Engineering, Inc. provided the engineering for the upgrade to the Rose Hill Facility in 2013 and the new East End facility in 2014.

The Rose Hill Treatment facility originally utilized pressure sand filters which were having significant issues. The upgrade for the project replaced the pressure filters with packaged gravity filter units. The gravity filter units were installed in a new pre-engineered building. The filter media provides for iron and manganese removal. The building also housed the intermediate pumps, electrical, office, and training room. Aeration and detention was added to the facility. The facility also had zeolite softeners in which the resin was replaced and an additional salt storage tank was added. The project also included the installation of a second clearwell.

The following photos provide information on the Rose Hill Facility. Each project is unique and the components or configuration may change for different projects, but this project provides an example for iron (and manganese) removal similar to our concept.

Metal Building for Filters, intermediate pumps, electrical, office and training rooms.

Packaged filter units with platform, handrail, etc.

Filter piping gallery, air operated valves, flow meters for each filter cell, and control panel information.

ntermediate pumps, pit, and pump control valve piping

ntermediate pumps, pit, and pump control valve piping.

Main Electrical Panel

Air compressor for simultaneous air and water backwash cycle

Air compressor for air operated valves

Standby Generator

New glass lined bolted steel style Clearwell and new salt storage tank

Aeration tower and detention tank. Small building to the right is a packaged above ground pressure reducing and control valve station for distribution supply.

The aeration tower receives water from the wells. A raw water meter is located on the left side of the tank. The tank is a concrete structure with four compartments. Two compartments may be taken out of service for maintenance if required. The water is aerated and detained in the tank for a minimum 30 minute period. The tank has overflows and sludge draw-off piping. The water level in the tank provides the pressure needed to flow to the filter cells.

The water flows from the wells, through the aeration tower into the detention tank and then to the filter cells. After the filter cells, the water enters the intermediate pump pit and is pumped through the softeners into the clearwell. Chemical feed is added at various points. The chemical addition includes chlorine, potassium permanganate, and fluoride. After the clearwell, the high service pumps the finished water to the distribution system.

This facility handles the “red water” or iron waste through the use of a sedimentation tank and red water filter which is discharged to the river. Iron sediment occurs in the aeration tank and the filter backwash which is piped to the sedimentation tank. All pumps are variable speed or use Variable Frequency Drives (VFD). VFD’s were added to the existing production well pumps for energy savings. SCADA is used to monitor the status of the plant components.

RLM Engineering, Inc. provided the engineering services from concept through construction. The construction was performed by Doll Layman, LTD. The design was initiated in July 2011 and the treatment plant was in operation in August 2013. The project was financed through the Ohio EPA Water Supply Revolving Loan Fund.