Our engineering professionals assist clients with all aspects of water, wastewater, and water resource facility designs providing solutions to meet ever-changing needs. Water Distribution and Treatment
Water distribution and treatment systems can vary and complexity. Our design professionals evaluate existing facilities and infrastructure to develop a water model that will not only provide for existing demand, but also allow for future expansion at minimal cost.
All water system studies are performed using state-of-the-art computer modeling and flow evaluations that allows for many different scenarios to be performed on the planned distribution system.
The following is a summary list of a few water projects our Firm has completed:
Paron Water Association $7 million in USDA Rural Development Funding, people working together, and concerned public officials brought about a rural water system consisting of 700,000 gpd surface water treatment plant, 120 miles of waterline, state of the art radio read meters, 5 water tanks and 3 pump stations.
Providing safe drinking water to over 1,000 homes and businesses in Paron and Owensville in Northwest Saline County.
Ozan Creek The Ozan Creek Water System supplies safe drinking water to residential, commercial and cattle and poultry industry customers in one fourth of Hempstead County, Arkansas. The water system began in January, 1999, when Mr. James Thurman’s dream to construct a water system began to become a reality when an application for over $ 5.3 million in funding was made to the Arkansas Department of Economic Development (ADED) and the Arkansas Natural Resources Commission (ANRC). Over 100 miles of waterline, a water storage standpipe, booster pump station and a telemetry system with radio read water meters was installed to provide water to more than 600 customers.
City of Prescott The Prescott and Nevada County Rural Water System supplies safe drinking water to the residents of Nevada County, industry and commercial facilities. City and County officials received a combination of grant and loan funds from the Arkansas Department of Economic Development and the Arkansas Soil and Water Conservation Commission. It was truly a community wide effort that included County Judge James Roy Brown, Prescott Mayor Howard Taylor and the Partnership, Prescott's economic development agency. The ultimate result of many years of working together for the water system is a safe water system for residents of Nevada County, industrial development, a quality water resource for the poultry industry and improvement in the quality of life for citizens in this area of southwest Arkansas. The water system includes water storage tanks, booster pump stations and chlorination facilities, state of the art remote read water meters that can be read by the system operations personnel without leaving their work vehicle, radio telemetry and over 120 miles of pipeline serving over 25 percent of rural Nevada County. The water system has the capability of serving many more customers and stimulating economic development around the city of Prescott.
Regulations concerning processed wastewater discharge, makes it very important to evaluate any designed system for meeting discharge requirements.
Our company has successfully completed environmental projects over the 49 year history of the Firm. Over the past 23 years Marlar Engineering Company has specialized in the area of practice related to water and wastewater and completed projects ranging from $100,000 to $9 million. Wastewater systems include sanitary sewer collection improvements, rehabilitation of existing collection systems, pump stations and forcemains, wastewater treatment and sludge stablilization.
The water related projects include major pipeline distribution projects, treatment facilities, and rural water systems with over 100 miles of waterlines, standpipes, and pump stations. Two members of our firm are certified watercad modelers for Haestad Methods Watercad software and have extensive experience with Corps of Engineers 404 permitting, one member being listed with the Corps as a wetlands delineator. Two members of our Firm are certified flood plain managers.
Faulkner Lake Wastewater Treatment Plant
The following is a summary list of wastewater projects and experience our Firm has completed:
North Little Rock Wastewater Utility
Faulkner Lake Wastewater Treatment Plant, 2004 completion, $9 million expansion included new primary and final clarifiers with density current baffle system for 30% more removal efficiency, conversion of existing RBC basin to chlorine contact chamber, new complete mix activated sludge process, flow measurement (Parshall Flume) chamber, new sludge thickeners and site plan of new facility.
Faulkner Lake Wastewater Treatment Plant
Five Mile Creek Treatment Plant Expansion. In 2013-2014, NLRWW completed a $ 5.3 million expansion to its Five Mile Creek Treatment Plant which includeda new 18 mgd influent pump station, new influent Parshall Flume Flow Measurement facility, replacement of effluent pumps, two new auxiliary generators,new mechanical bar screens and conveyor system, computer SCADA operating system and electronically operated valves for equalization flow storage and other related improvements.The treatment plant has been in compliance with ADEQ NPDES Permit limitations since start up.
Five Mile Creek Treatment Plant Expansion
City of Sherwood Wastewater Treatment Plants
$1.8 million Pickthorne Wastewater Treatment Plant and Collection system. Treatment plant includes mechanical screening, activated sludge process (Parkson Biolac System), tertiary filtration, UV Light Disinfectant and Flow Measurement.
Collection System included SSES Study and $400,000 in upgrades. Result: Project was brought into ADEQ compliance within 1 month after start up and has remained in compliance well under discharge limitations.
$1.5 million Indianhead Wastewater Treatment Plant and Collection System. Treatment plant includes mechanical screening, Sequencing Batch Reactor process, US Filter Jet Tech System with Jet Aeration, Post Aeration, UV Light Disinfection, Flow Measurement.
Collection system included a SSES Study and $350,000 in collection system upgrades. Result: Treatment system was brought into ADEQ compliance in 1998 within 2 months after start up and has remained in compliance well under discharge limitations.
Military Department of Arkansas
$5.4 million Wastewater Treatment Plant and Collection System Upgrade. In 1993, the State Military Department contracted with Marlar Engineering Company to design a new treatment facility and collection system upgrade to reduce infiltration and inflow and bring the treatment plant into ADEQ compliance. The new treatment plant included mechanical screening, extended aeration activated sludge process (oxidation ditch), 2 final clarifiers operated in either parallel or series, tertiary flitration, UV disinfection, post aeration and flow measurement. The project also included computer SCADA system monitoring flow, pH, DO, and other parameters and automating RAS/WAS valves.
Collection system included over $20 million in upgrades resulting in a 70% reduction in infiltration and inflow.
A second project involved a $600,000 Sludge Biosolids system including wetlands plants and traditional sludge drying beds to measure the dewatering efficiency of wetlands plants compared to traditional sludge drying.
Result: Treatment plant was brought into compliance in 1995 within 2 months after start up and remains in compliance well under discharge limitations. The plant has won 2 Environmental Awards from the Department of the Army National Guard Bureau.
City of Vilonia Wastewater Treatment Plant Expansion
This project involved the expansion of Vilonia's 0.25 mgd treatment facility to 0.5 mgd by the addition of a new headworks including mechanical screening and grit removal, extended aeration/activated sludge basin and settling basin with the aerobic digestion, followed by chlorine contact and flow measurement. $1.8 million project completed in 2007.
Marlar Engineering Company, Inc. 5318 John F. Kennedy Blvd. North Little Rock, AR 72116 phone: 501-753-1987 fax: 501-753-1993