CHLORSULFURON: federal lists and state cleanup levels

Federal lists

Toxic chemicals for release reporting (TRI)

• 40 CFR 372.65(a)
• Revised as of July 1, 2025

40 CFR 372.65, the list of toxic chemicals subject to release reporting, lists CAS 64902-72-3 with an effective date for reporting of 1/1/95.

Table 1 to Paragraph (a): (a) Alphabetical listing.

Chemical name	CAS No.	Effective date
Chlorsulfuron	64902-72-3	1/1/95

Notes to Table 1 to Paragraph (a): (a) Alphabetical listing., as the regulation prints them

¹ The listing of 2,2-dibromo-3-nitrilopropionamide (CAS No. 10222-01-2) is stayed. The stay will remain in effect until further administrative action is taken.

Florida

• FL DEP
• Chapter 62-777 CTLs
• February 2005

For Chlorsulfuron, DEP's cleanup target level tables print 350 ug/L as the groundwater criterion.

• 350ug/L Groundwater Criteria Table I: Groundwater and Surface Water Cleanup Target Levels

All Florida values for Chlorsulfuron

Pennsylvania

• PA DEP
• Act 2 Statewide Health Standards

For CHLORSULFURON, DEP's Statewide Health Standard tables print 690 μg/L for residential groundwater in a used aquifer with TDS up to 2500, 4,400 mg/kg for residential soil direct contact from 0 to 15 feet, and two residential soil to groundwater values for a used aquifer with TDS up to 2500: 69 mg/kg as 100 X GW MSC and 9.6 mg/kg as the generic value.

• 690μg/L R Table 1: Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Groundwater Used Aquifers, TDS ≤ 2500
• 4,400mg/kg 4400 0-15 feet Table 3a: Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Soil: A. Direct Contact Numeric Values Residential
• 69mg/kg 100 X GW MSC Table 3b: Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Soil: B. Soil to Groundwater Numeric Values Used Aquifers, TDS ≤ 2500, Residential
• 9.6mg/kg Generic Value Table 3b: Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Soil: B. Soil to Groundwater Numeric Values Used Aquifers, TDS ≤ 2500, Residential

All Pennsylvania values for CHLORSULFURON

For the federal lists the regulation governs. This page copies the Code of Federal Regulations' annual edition revised as of July 1, 2025, which is kept up to date by the Federal Register; amendments published there since that date are not shown. This page is a reference copy and not a reporting decision. Check the current regulation before relying on a value.

A list with no section on this page has no row with this CAS number. That alone does not put the substance outside the list: the lists also have entries with no CAS number (broad classes, chemical categories, waste streams), which a page filed by CAS number cannot show.

Each agency's own publication governs: its current table, or the published rule where the agency says so. This page is a reference copy and not a cleanup decision. Check each agency's page before relying on a value.

Source

• Environmental Protection Agency, 40 CFR parts 302, 355 and 372, in Title 40 of the Code of Federal Regulations, Parts 300 to 399, revised as of July 1, 2025, as the U.S. Government Publishing Office posts it. File read October 6, 2026.
• Florida Department of Environmental Protection, Cleanup Target Levels for Chapter 62-777, F.A.C., dated February 2005. Files read October 6, 2026.
• Pennsylvania Department of Environmental Protection, Statewide Health Standard Medium-Specific Concentrations.
• Table 1: DEP's file dated April 14, 2022, read October 5, 2026.
• Table 3a: DEP's file dated January 4, 2022, read October 5, 2026.
• Table 3b: DEP's file dated January 19, 2022, read October 5, 2026.