METHYL STYRENE (MIXED ISOMERS) cleanup levels by state
- CAS 25013-15-4
- 2 states
CAS 25013-15-4 is in the cleanup-level tables of 2 states in this handbook: Florida (Methyl styrene (mixed)) and Pennsylvania (METHYL STYRENE (MIXED ISOMERS)). 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.
Florida
- FL DEP
- Chapter 62-777 CTLs
- February 2005
For Methyl styrene (mixed), DEP's cleanup target level tables print 120 mg/kg for residential direct exposure to soil and 0.8 mg/kg for soil leachability based on groundwater.
- 120mg/kg Direct Exposure - Residential Table II: Soil Cleanup Target Levels
- 0.8mg/kg Leachability Based on Groundwater Table II: Soil Cleanup Target Levels
Pennsylvania
- PA DEP
- Act 2 Statewide Health Standards
For METHYL STYRENE (MIXED ISOMERS), DEP's Statewide Health Standard tables print 84 μg/L for residential groundwater in a used aquifer with TDS up to 2500, 760 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: 8.4 mg/kg as 100 X GW MSC and 47 mg/kg as the generic value.
- 84μg/L R Table 1: Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Groundwater Used Aquifers, TDS ≤ 2500
- 760mg/kg 0-15 feet Table 3a: Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Soil: A. Direct Contact Numeric Values Residential
- 8.4mg/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
- 47mg/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
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
- 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.