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States / Illinois

Sangamon County, IL

The federal environmental record for Sangamon County (population 193,491): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.

0

Superfund NPL sites

6

federal cleanup sites

1

PFAS-detecting water systems

3

TRI facilities

105

open tank releases

Drinking water: PFAS testing

Public water systems serving Sangamon with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.

SystemHighest resultsReading
SPRINGFIELD, IL

IL1671200

PFBA: 6 ng/L

detected

On a system with detections? Testing and treatment options

Facilities reporting toxic releases (2024)

3 facilities in Sangamon filed TRI reports for 2024, totalling 32k lb released.

FacilityCityTop chemicalsTotal released
CITY WATER LIGHT & POWER CITY OF SPRINGFIELDSPRINGFIELDManganese And Manganese Compounds, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)32k lb
SOLOMON COLORS INC.SPRINGFIELDXylene (mixed isomers), Ethylbenzene189 lb
US DOD USAF CAPITAL MAP ANGSPRINGFIELDXylene (mixed isomers)1 lb

Underground fuel tanks

EPA's UST Finder records 526 tank facilities in Sangamon: 373 tanks in service and 1,172 closed. 455 fuel releases are on record, of which 105 remain open. Open releases are cleanups that have not reached "no further action".

Radon

EPA maps Sangamon as Zone 1, the highest predicted indoor radon levels (over 4 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 Sangamon, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.

  • IL AIR NATIONAL GUARD AIRPORTSPRINGFIELD
  • INDUSTRIAL CHEMICALSPRINGFIELD
  • NUTRONICS, INC.SPRINGFIELD
  • PIERCE WASTE OIL SERV INCSPRINGFIELD
  • PILLSBURY MILLSSPRINGFIELD
  • SPRINGFIELD IRON COMPANYSPRINGFIELD