# LPC-663 form: Illinois EPA uncontaminated soil certification by a PE or PG Sections I to IV of LPC-663, in the form’s own words, for soil from potentially impacted property.

> Prepare Illinois EPA form LPC-663: site, owner and operator, sampling and lab basis, and the PE or PG certification, ready to copy onto the form and seal.
> Web page: https://complyonsite.com/tools/lpc-663-form

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- Illinois

## What is the LPC-663 form?

Illinois EPA’s certification that soil from potentially impacted property is uncontaminated soil, with a pH between 6.25 and 9.0, before it goes to a clean construction or demolition debris (CCDD) fill operation or an uncontaminated soil fill operation. A licensed professional engineer (PE) or licensed professional geologist (PG) evaluates the site, samples the soil, has it analysed and signs and seals the form.

The certification must be on Illinois EPA’s own form. Fill in this worksheet, then copy the answers into the LPC-663 PDF, print it, sign it, seal it and attach the evidence. The PDF only opens in Adobe Acrobat Reader; a phone or browser shows a “Please wait” page.

## LPC 662 vs 663

LPC-662 is signed by the source site owner or operator, for soil from a site that is not potentially impacted property. LPC-663 is signed and sealed by a PE or PG, and is required for soil from potentially impacted property: a property where a past or current use, or contamination migrating from a nearby site, makes contamination more likely.

If the PE or PG concludes the site is not potentially impacted, the owner or operator signs LPC-662 instead and can attach the professional’s findings. Soil gathered from several places into one stockpile is certified on LPC-663 at the stockpile’s address.

## What goes with LPC-663

Section III references the attachments: where the soil was sampled and why those points are enough, and the lab results showing every constituent within the maximum allowable concentrations set under Part 1100, Subpart F, and the pH within 6.25 to 9.0. The lab package includes the chain of custody, the lab report, the lab’s accreditation status and its certification that the analysis meets the accreditation rules.

Analysis follows U.S. EPA SW-846. The sampling plan is the PE’s or PG’s decision, based on the site and the contaminants suspected.

[Illinois EPA LPC-663 Uncontaminated Soil Certification (PDF, opens in Adobe Acrobat Reader)](https://epa.illinois.gov/content/dam/soi/en/web/epa/topics/waste-management/waste-disposal/ccdd/documents/uncontaminated-soil-certification-form.pdf)

## Questions

### Does a certified load still get checked at the fill site?

Yes. Every load is inspected by eye and with a PID or FID meter before it is accepted, and any reading above background means rejection, whatever the certification says. [Illinois EPA CCDD questions](https://epa.illinois.gov/topics/waste-management/waste-disposal/ccdd.html)

### Does each load need its own LPC-663?

Not usually. Illinois EPA says one certification per job site may be enough; agree it with the fill operation before the first load. [Illinois EPA CCDD questions](https://epa.illinois.gov/topics/waste-management/waste-disposal/ccdd.html)

### What happens to a rejected load?

The driver gets a written notice with the reasons. The load goes to a permitted landfill, or back to a fill operation only once the reasons are fixed and the soil is re-tested and certified again. [35 Ill. Adm. Code 1100.205](https://www.law.cornell.edu/regulations/illinois/Ill-Admin-Code-tit-35-SS-1100.205)

### Is the soil certification needed for painted concrete?

Painted CCDD has its own PE or PG certification, LPC-667. [Illinois EPA CCDD forms](https://epa.illinois.gov/topics/forms/land-forms/ccdd.html)

## Sources

- [Illinois EPA, LPC-663 Uncontaminated Soil Certification, IL 532-2922 Rev. 2/2025 (PDF)](https://epa.illinois.gov/content/dam/soi/en/web/epa/topics/waste-management/waste-disposal/ccdd/documents/uncontaminated-soil-certification-form.pdf), read 6 October 2026
- [35 Ill. Adm. Code 1100.205, certifications and load checking (LII)](https://www.law.cornell.edu/regulations/illinois/Ill-Admin-Code-tit-35-SS-1100.205), read 6 October 2026
- [Illinois EPA, Clean Construction or Demolition Debris and frequently asked questions](https://epa.illinois.gov/topics/waste-management/waste-disposal/ccdd.html), read 6 October 2026
- [Illinois EPA, CCDD certification and registration forms](https://epa.illinois.gov/topics/forms/land-forms/ccdd.html), read 6 October 2026

## Other waste paperwork in the United States

- [Asbestos waste shipment record](https://complyonsite.com/tools/asbestos-waste-shipment-record), United States
- [Non hazardous waste manifest](https://complyonsite.com/tools/non-hazardous-waste-manifest), United States
- [Hazardous waste manifest (EPA Form 8700-22): prepare it item by item](https://complyonsite.com/tools/hazardous-waste-manifest), United States
- [Solid waste origin and disposal form (NJ O&D form)](https://complyonsite.com/tools/solid-waste-origin-and-disposal-form), New Jersey
- [Part 360 waste tracking document for C&D debris (New York)](https://complyonsite.com/tools/part-360-waste-tracking-document), New York
- [LPC-662 form: Illinois EPA source site certification for clean soil](https://complyonsite.com/tools/lpc-662-form), Illinois
- [Illinois non hazardous special waste manifest: items 1 to 20, filled in](https://complyonsite.com/tools/illinois-non-hazardous-special-waste-manifest), Illinois