Case Studies


  • LaSalle/Grant Parish Landfill

    Bryant Hammett & Associates (BH&A) was contracted by LaSalle Parish to provide engineering design, permitting, bid package preparation, and construction oversight for a 60-acre expansion at the LaSalle/Grant Landfill. This project was part of the landfill’s overall upgrade and compliance... Read more.

    Concordia Parish Sewerage District No. 1 Wastewater Collection and Treatment

    The Concordia Parish Sewerage Dist. No. 1 (CPSD1) is a special district of the Concordia Parish Police Jury. Formed in November 1976, the boundary of the CPSD1 encompasses approximately 22 square miles... Read more.

    Concordia Waterworks Case Study

    Concordia Waterworks District No. 1 is the parish-wide water district for Concordia Parish, servicing approximately 2,300 users. Concordia Waterworks also has emergency cross-connections with several towns within the parish. They began in the late 1960s and, like most... Read more.

    "The City of Vidalia has done business with Bryant Hammett & Associates for years. They have always exceeded our expectations and we never hesitate to recommend their engineering and project design services to others."
    — Hyram Copeland, Mayor, City of Vidalia

    "We use Bryant Hammett & Associates for any engineering projects the town may have. We have come to expect the same exceptional, professional results they give us every time."
    —Glen McGlothin, Mayor, Town of Ferriday




Case Study: LaSalle/Grant Parish Landfill Project


lasalle/grant parish picture 1Bryant Hammett & Associates (BH&A) was contracted by LaSalle Parish to provide engineering design, permitting, bid package preparation, and construction oversight for a 60-acre expansion to the LaSalle/Grant Landfill. This project was part of the landfill’s overall upgrade and compliance with the State’s newly promulgated solid waste regulations and the federal Subtitle “D” regulations. BH&A prepared site grading/excavation plans; designed disposal cells consisting of composite liner and cover system; designed a leachate collection and removal system; designed a storm water management system and an onsite wastewater treatment system to treat contaminated storm water and leachate. This design package was incorporated in the landfill’s solid waste permit application that was submitted to the Louisiana Department of Environmental Quality (LDEQ) for approval. Working closely with LDEQ and the client, BH&A successfully obtained the necessary permits, provided construction oversight and completed the engineering certification in an unprecedented time of less than 6 months, beating the regulatory deadline by one day. This effort saved the parish millions of dollars in lost revenues and fines.

Throughout this process, BH&A responded to a multitude of compliance orders, insuring that the solid waste disposal process was not interrupted. We obtained several exemptions to the regulations,including an emergency exemption to construct and an exemption for final cover permeability. These exemptions saved the landfill tens of thousands of dollars. We obtained Storm Water Discharge and NPDES permits. BH&A prepared and obtained approval of a Best Management Practices plan and a Storm Water Pollution Prevention Plan for the landfill, and a closure plan for the interim disposal area. We submitted and had approved seven modifications to the original permit, including the major mandatory modification required to bring the permit into compliance with the new federal Subtitle D Regulations.

BH&A worked diligently with the LaSalle/Grant landfill committee, the LDEQ, and TransWaste Industries (TWI), a private solid waste operator to confect a contract to allow TWI to operate the landfill while protecting LaSalle and Grant Parishes’ interests.

We continue to provide engineering services to the private operator, including the design and permitting of a 200-acre expansion to the landfill.