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To meet todays wastewater management challenges, you need afull-service partner with proven expertise in virtually all advancedwastewater treatment processes. Parsons Water & InfrastructureInc. is one of the industrys only fully qualified firms providingcomprehensive services for governments and industries in the fieldof advanced wastewater treatment. Parsons delivers speciallytailored solutions that maximize your financial investment andaddress the most complex technical needs.

Since 1946, Parsons has helped public utilities and other clientsplan, design and construct complex and cost-effective wastewatercollection and treatment systems. Employing advanced biologicaland physical/chemical treatment processes for nutrient removal,Parsons designs have ranged from large treatment plants at 550-mgd to small facilities less than 1.0 mgd. Parsons can customize

a technical solution that effectively addresses point dischargewater quality issues, reuse for turf and crop irrigation, industrialwastewater contributions, odor control, site restrictions and otherissues.

To help manage your facility more effectively, Parsons offersservices such as asset management, business consulting,program and construction management, security considerations,equipment selection, community relations, operator training andregulatory compliance support.

Comprehensive Services

When it comes to wastewater facilities, Parsons practicalexperience and technical knowledge are extensive. Ourdesigns feature new and established technologies inwastewater collection; ozone, chlorine and chloraminesdisinfection; chemical treatment; sedimentation; biologicaltreatment; membrane technology; filtration; mixing andflocculation; and residuals/biosolids management. Whetheryou need conventional activated sludge or membranebio-reactors, dual media filtration or cloth media filtration,

Parsons will deliver the most cost-effective, long-termtechnical solution.

Computerized process modeling and advanced hydraulicmodeling are among the tools applied to your project designfor enhanced decision making and control. Parsons bringsextensive experience in biosolids management includingsolids thickening, advanced digestion technologies, alkalinestabilization, dewatering and beneficial use programs. Ourprofessionals can help your wastewater facility comply withgovernment regulations by eliminating Combined SewerOverflows (CSOs) and Sanitary Sewer Overflows (SSOs).

Technical Expertise

Wastewater collection systems

Sanitary sewer overflows (SSOs)

Combined sewer overflows (CSOs)Conventional and advanced wastewater treatment

Biological nutrient removal

Membrane bioreactors

UV disinfection

Water reclamation

Residuals/biosolids management

Whether your project is self-regulating or compliance-driven,Parsons comprehensive wastewater treatment expertisewill help you better manage assets, meet governmentregulations, address public concerns and plan effectively fortomorrows challenges.

Aging facilities, stricter regulations, rising costs and increasing public concerns have madeeffective wastewater collection and treatment a real challenge. Even modern secondarytreatment plants may not comply with some of the emerging water standards.

Parsons' Capabilities

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parsons

Wastewater

When the issue is wastewater, the solution is Parsons

PARSONS CORPORATION100 West Walnut StreetPasadena, CA 91124U.S.A.Phone: +1.626.440.2000

www.parsons.com

092408

Parsons Water & Infrastructure

Virginia Grebbien, Executive Vice President

100 West Walnut StreetPasadena, California 91124626.440.3007

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