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Daggett Sand & Gravel, Inc. Landfill (Lansing, Ingham County)

Disclaimer
Web content may not routinely be updated on this page. Please contact the Site Lead for the most up-to-date status of the site.
Content posted December 2022.

EGLE site Lead

Evin Maguire, MaguireE@Michigan.gov or 517-388-3525.

Background

Daggett Sand & Gravel, Inc. Landfill (Daggett), located at 930 East Sheridan Road, is a closed landfill that was used primarily for construction and demolition debris and non-hazardous industrial waste. Daggett is bordered to the north by the active Granger Wood Street Landfill, and to the south by the closed Granger Paulsen Street Landfill and the closed City of Lansing Paulsen Street Landfill. Due to historical groundwater contamination at the site, EGLE requested that Daggett sample their leachate (wastewater) for PFAS. In January 2022, EGLE received results from leachate sampling, which confirmed the presence of PFAS in the leachate. Because of this, EGLE asked Daggett to sample all six of their groundwater monitoring wells for PFAS.

Shallow groundwater flows to the south-southwest. The deeper groundwater is generally protected by low permeability clay and shale layers. A group of Lansing Board of Water and Light drinking water wells are located in the deeper groundwater, approximately 0.5 miles downgradient, at approximately 400 to 450 feet deep. There is also a small unnamed pond/wetland area to the southwest, downgradient of the site.

Daggett Sand & Gravel Inc. Landfill map

Recent Accomplishments

  • On January 4, 2022, EGLE received leachate sampling results that confirmed the presence of PFAS in leachate at the site.
  • On June 28, 2022, Daggett’s consultant, Ann Arbor Technical Services (ATS), sampled groundwater monitoring wells at the site as part of their routine Semiannual groundwater monitoring event.
  • On August 31, 2022, EGLE received the groundwater monitoring report, and PFAS sampling results from the June 28 monitoring event, which confirmed the presence of PFAS contamination in the shallow glacial aquifer, at depths ranging from approximately 40 to 60 feet. The highest results were 51 ppt PFOA (compared to 8 ppt), 25 ppt PFOS (compared to 16 ppt), and 22 ppt PFNA (compared to 6 ppt).

Next Steps

  • EGLE will work with Daggett and ATS to develop a plan to investigate the extent of contamination.
  • EGLE is currently gathering and evaluating any additional groundwater flow and subsurface data from the surrounding area.
  • EGLE will work with Daggett and ATS to explore the installation of proposed groundwater extraction system at the site, to control the source of contamination.

Residential Well / Alternative Water Information

  • The area to the southwest of the landfill is served by municipal water provided by the Lansing Board of Water and Light and is monitored for PFAS annually. The nearest drinking water wells are approximately a half-mile away, upgradient of the site.

Upcoming Community Engagement

  • None are scheduled at this time.

Sampling Results Summary

Type of Sample

Date Sampled
(or range)

Number of Sample Results Received

Number of Samples above Criteria

Groundwater Monitoring Wells

June 28, 2022

6

5

* Residential well and groundwater monitoring well results are compared to EGLE Part 201 criteria for 7 PFAS compounds effective 12/21/2020:  PFOS (16 ppt), PFOA (8 ppt), PFNA (6 ppt), PFHxS (51 ppt), PFHxA (400,000 ppt), PFBS (420 ppt), and HFPO-DA (370 ppt).

Sampling Notes

  • None at this time.