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Design or Design-Build

Keystone has extensive experience in leveraging the design/design-build process for a wide variety of water and wastewater projects. Our innovative approaches during the process allow clients to feel confident in our delivery method and solutions. Design-build advantages include:

  • Sole service responsibility from project launch to completion

  • Quality partnerships with our clients, subcontractors, and equipment suppliers

  • Development and locked-in cost during early stages of the design process

  • An open-book guaranteed maximum price (GMP)

  • A return of 100% cost savings below the GMP

Industrial, Municipal, and Private

Our approach is to actively partner with our clients to meet fast-track schedules. Our engineering designs are tempered with hands-on construction and operations experience to tackle water/wastewater challenges quickly, efficiently, and cost-effectively:

  • Collection

  • Treatment

  • Nutrient and bio-solids management

  • Permitting and compliance

  • Operations

Processes and Detailed Design

We provide cost-effective services with robust solutions. Each solution is different, and we know the answer isn't always additional treatment. Our team utilizes our expertise to evaluate your needs so we can:

  • Provide you with wastewater characterization; quality flows, pollutant loadings, and future considerations

  • Evaluate requirements for pre-treatment, subsurface disposal, or direct discharge

  • Source control and waste minimization opportunities

  • Conceptualize designs that assess treatment alternatives

  • Prepare full detailed designs


Our team has the experience to prepare your application, review draft conditions, and ensure that your permit is equitable. We specialize in:

  • Permit renewals

  • Reviewing and negotiating draft permit limits and conditions

  • Total maximum daily load (TMDL) calculations

  • Evaluation of permit changes

  • Identifying permit risks and creating solutions

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