Pendimethalin: federal lists and state cleanup levels
- CAS 40487-42-1
- 1 federal list
- 2 states
CAS 40487-42-1 is on one of the three federal lists this handbook carries from Title 40 of the Code of Federal Regulations, Parts 300 to 399, revised as of July 1, 2025: the toxic chemicals for release reporting (40 CFR 372.65). That list's rows for it are below as the regulation prints them. CAS 40487-42-1 is in the cleanup-level tables of 2 states in this handbook: Florida (Pendimethalin) and Texas (Pendimethalin). Each state's numbers are below as its agency prints them. The states run different programs and do not define their values the same way, so a number from one is not the same measure as a number from another. A state that lists the substance under another CAS number, or without one, is not shown here.
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 40487-42-1 with an effective date for reporting of 1/1/95.
Table 1 to Paragraph (a): (a) Alphabetical listing.
| Chemical name | CAS No. | Effective date |
|---|---|---|
| Pendimethalin | 40487-42-1 | 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 Pendimethalin, DEP's cleanup target level tables print 280 ug/L as the groundwater criterion, 3,200 mg/kg for residential direct exposure to soil and 28 mg/kg for soil leachability based on groundwater.
- 280ug/L Groundwater Criteria Table I: Groundwater and Surface Water Cleanup Target Levels
- 3,200mg/kg 3200 Direct Exposure - Residential Table II: Soil Cleanup Target Levels
- 28mg/kg Leachability Based on Groundwater Table II: Soil Cleanup Target Levels
Texas
- TCEQ
- TRRP Tier 1 PCLs
- February 6, 2025
For Pendimethalin, TCEQ's Tier 1 table prints 2,500 mg/kg for TotSoilComb and 7,500 mg/kg for GWSoilIng (residential soil, 0.5 acre source area), and 0.98 mg/L for GWGWIng (residential groundwater).
- 2,500mg/kg 2.5E+03 TotSoilComb Table 1: Tier 1 Residential Soil PCLs 0.5 acre source area
- 7,500mg/kg 7.5E+03 GWSoilIng Table 1: Tier 1 Residential Soil PCLs 0.5 acre source area
- 0.98mg/L 9.8E-01 GWGWIng Table 3: Tier 1 Groundwater PCLs - Residential and Commercial/Industrial Residential
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.
- Texas Commission on Environmental Quality, Texas Risk Reduction Program Tier 1 Protective Concentration Levels, last revised February 6, 2025. File read October 1, 2026.