Williamsburg County, SC

The federal environmental record for Williamsburg County (population 29,891): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.

Superfund NPL sites

federal cleanup sites

PFAS-detecting water systems

TRI facilities

open tank releases

Drinking water: PFAS testing

No public water system serving Williamsburg reported a PFAS detection in the UCMR5 national testing round. Systems serving under 3,300 people were only sampled in part, so absence from this table is not proof of absence in the water.

Facilities reporting toxic releases (2024)

3 facilities in Williamsburg filed TRI reports for 2024, totalling 14k lb released.

Facility	City	Top chemicals	Total released
DSM NUTRITIONAL PRODUCTS LLC	KINGSTREE	Ammonia, n-Hexane	10k lb
UPL NA INC.	KINGSTREE	Certain glycol ethers, 1,2,4-Trimethylbenzene	4k lb
FEDERAL CORRECTIONAL INSTITUTION WILLIAMSBURG	SALTERS	-	0 lb

Underground fuel tanks

EPA's UST Finder records 189 tank facilities in Williamsburg: 90 tanks in service and 447 closed. 136 fuel releases are on record, of which 43 remain open. Open releases are cleanups that have not reached "no further action".

Radon

EPA maps Williamsburg as Zone 3, the lowest predicted indoor radon (under 2 pCi/L average). Radon and air quality are covered in depth on lung.com.

The record for one specific address

County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.

Get the report - $39

All federal cleanup sites on file

The wider Superfund enterprise inventory (SEMS) for Williamsburg, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.

DON'S SCRAP IRON AND METALHEMINGWAY
GEIGER (C & M OIL)HOLLYWOOD
HENRY WOOD PRESERVINGHEMINGWAY
SOUTHERN AGRICULTURAL CHEMICAL PLANTKINGSTREE