[MAY 29, 2025 – new files added to SEABOARD/HIGH POINT LANDFILL records, here.]
[A quick link to our PFAS TEST RESULTS spreadsheet, with numbers through May 2025 is HERE. AND, go HERE to read about the latest 1,4-DIOXANE test results from High Point Landfill/Seaboard Chemical dump]
We’ve written extensively about the massive amounts of 1,4 Dioxane, vinyl chloride, chlorobenzene and volatile organic compounds that have been leaching and draining – for decades – to our Deep River/Randleman Lake drinking water supply from High Point Landfill/Seaboard Chemical Dump. Located on Riverdale Drive in Jamestown 27282, Seaboard (also owned by High Point) sits in the middle of the Landfill (inactive). The combined parcel is 163 acres.
Thanks to the EPA’s Unregulated Contaminant Monitoring Rules (UCMR), which require testing of public water supplies for the presence of hazardous and carcinogenic chemicals like 1,4 Dioxane and, more recently, a growing list of PFAS compounds, we have a better understanding of how bad Guilford County’s PFAS problem is. This is also due to our own research efforts. The local governments, elected representatives and public utilities continue to ignore residents’ requests for water quality information and more water testing, and are doing NOTHING to holding polluters and contaminators accountable, no matter how fast and high the spills, complaints and numbers increase.
Below are the PFAS results for Seaboard/High Point Landfill: (1) groundwater tests from seven monitoring wells, and (2) surface water samples from two locations on the bank on Deep River. Twenty-four PFAS compounds were detected in the two rounds of testing conducted in November, 2023 and November, 2024:
PFOA was detected in surface water at 516 ppt and 350 ppt; and PFOS at 569 ppt and 540 ppt. The legal limit in water supplies for both is 4.0 ppt, and the health guidance maximum is 0; the presence of more than one PFAS, and certain PFAS like PFHxS (751 ppt) and GenX (7.8 ppt), trigger a health hazard index because the increased accumulation of these and other PFAS causes increased damage.
“Riverdale LF” is High Point Landfill. The “ng/L” measurement unit equals Parts Per Trillion (ppt). The monitoring wells are labeled MW-1, MW-3C, MW-10, MW-12A, PW3D, PW-6I and W-4A; the surface water sampling sites are labeled SW-2 and SW-4.
This next image is a screen grab of the Seaboard/High Point Landfill section from our PFAS RESULTS master spreadsheet. Even though the entire site is inactive and there’s a big locked fence around it, a side by side comparison shows most of the PFAS levels
INCREASED year-over-year (see the percentage “change” in dark purple). How in the world does that happen – is dumping still going on there? Drop a note if you have any thoughts.
The next image is the site map from the report – the monitoring wells outlined with a green box are the PFAS sample locations. The blue streak running top to bottom is Deep River. The area outlined in the white line is the High Point Landfill.

The next link is the full Seaboard/High Point Landfill 2024 annual report. On some of the site maps, Deep River is referred to as “Randleman Lake,” which is incorrect. Deep River at Seaboard/High Point Landfill is in Guilford County, on Riverdale Drive, Jamestown 27282, at least five miles north of the beginning of the Randleman Lake impoundment. Deep River in this location is a Water of the United States, Class IV Critical Water Supply Stream. The report:
And here’s our current PFAS spreadsheet, with test results through May, 2025:
The EPA under the current administration, unfortunately, is rolling back water protections to delay enforcement of the UCMR rules, thus giving industrial polluters and abandoned contaminated sites like Seaboard more time to destroy our groundwater, streams, lakes, rivers, soil, aquatic life, and drinking water.
In the same way that 1,4 Dioxane and PFAs can’t be removed from water with “ordinary” carbon filters, they also can’t be removed from your body – hence the term “forever chemicals.
Learn how to test and monitor your water, tell your local and state authorities to hold the POLLUTERS and industrial dischargers responsible, and demand that your tax dollars, water fees and stormwater fees are used to pay for a SAFE WATER SOLUTION for every Jamestown, High Point, Archdale and Greensboro water customer until Guilford County has gotten this PFAS crisis cleaned up and under control.




