Regulatory Standards
State-specific cleanup levels, screening values, and regulatory thresholds for groundwater, soil, air, and surface water. Every value is cited to its primary regulatory source and dated.
Surface Water
EPA National Recommended Water Quality Criteria - Aquatic Life
Federal recommended water quality criteria for the protection of aquatic life under the Clean Water Act.
Verified Mar 2026EPA National Recommended Water Quality Criteria - Human Health
Federal recommended water quality criteria for the protection of human health under the Clean Water Act.
Verified Mar 2026Air & Indoor Air
Asbestos Regulatory Standards and Thresholds - Quick Reference
Asbestos standards quick reference: OSHA PEL, NESHAP thresholds, AHERA clearance levels, ACM definitions, and Ohio notification triggers.
Verified Mar 2026OSHA Lead in Construction Standard - PEL, Action Level, and Requirements
OSHA lead construction standard: PEL, action level, exposure monitoring, medical surveillance, and work task exposure categories.
Verified Mar 2026Groundwater
Indiana Groundwater Published Levels - Pesticides and PCBs
IDEM Published Level Table 1 groundwater standards for pesticides and PCBs in Indiana. 223 chemicals. No commercial/industrial groundwater levels published.
Verified Mar 2026Indiana Groundwater Published Levels - Metals
IDEM Published Level Table 1 groundwater standards for metals in Indiana. 165 chemicals. No commercial/industrial groundwater levels published.
Verified Mar 2026Indiana Groundwater Published Levels - SVOCs and PAHs
IDEM Published Level Table 1 groundwater standards for SVOCs and PAHs in Indiana. 202 chemicals. No commercial/industrial groundwater levels published.
Verified Mar 2026Indiana Groundwater Published Levels - Volatile Organic Compounds (VOCs)
IDEM Published Level Table 1 groundwater standards for VOCs in Indiana. 224 chemicals. No commercial/industrial groundwater levels published.
Verified Mar 2026Indiana PFAS Screening Levels
IDEM published levels for PFAS compounds across soil, groundwater, and indoor air. Includes MCLs for PFOA, PFOS, PFHxS, HFPO-DA, PFNA, and PFBS added in 2025.
Verified Mar 2026Soil
IDEM R2 Excavation Screening Levels - Indiana Published Levels for Soil
IDEM R2 excavation screening levels from the Remediation Closure Guide (WASTE-0046-R2). 853 chemicals with soil values for worker exposure during excavation.
Verified Mar 2026Indiana Recreational Soil Screening Levels
IDEM Published Level Table 2 recreational soil screening levels for trail, athletic field, and community park land uses. 57 chemicals.
Verified Mar 2026IDEM R2 Soil Published Levels - Indiana Metals
IDEM R2 soil direct-contact published levels for metals. Residential and commercial/industrial values for 150 chemicals from WASTE-0046-R2.
Verified Mar 2026IDEM R2 Soil Published Levels - Indiana Pesticides and PCBs
IDEM R2 soil direct-contact published levels for pesticides and PCBs. 219 chemicals with residential and commercial/industrial values from WASTE-0046-R2.
Verified Mar 2026IDEM R2 Soil Published Levels - Indiana SVOCs and PAHs
IDEM R2 soil direct-contact published levels for SVOCs and PAHs. Residential and commercial/industrial values for 191 chemicals from WASTE-0046-R2.
Verified Mar 2026IDEM R2 Soil Published Levels - Indiana VOCs (Residential and C/I)
IDEM R2 soil direct-contact published levels for VOCs from the Remediation Closure Guide. Residential and commercial/industrial values for 67 chemicals.
Verified Mar 2026Air & Indoor Air
Indiana Indoor Air Published Levels - SVOCs and PAHs
IDEM Published Level Table 1 indoor air screening levels for SVOCs and PAHs in Indiana. 7 chemicals with residential and commercial/industrial values.
Verified Mar 2026Indiana Indoor Air Published Levels - Volatile Organic Compounds (VOCs)
IDEM Published Level Table 1 indoor air screening levels for VOCs in Indiana. 137 chemicals with residential and commercial/industrial values.
Verified Mar 2026Indiana Soil Gas Screening Levels
IDEM soil gas screening levels for vapor intrusion. Subslab, deep exterior, and shallow exterior values for 3 land uses. 154 chemicals.
Verified Mar 2026Groundwater
Ohio VAP Groundwater Standards - Metals
Current Ohio VAP unrestricted potable use groundwater standards for arsenic, lead, chromium, cadmium, and other metals. Cited to OAC 3745-300.
Verified Mar 2026Ohio VAP Groundwater Standards - Pesticides and PCBs
Ohio VAP groundwater standards (UPUS) for pesticides and PCBs. CIDARS February 2025.
Verified Mar 2026Ohio VAP Groundwater Standards - SVOCs and PAHs
Ohio VAP groundwater standards (UPUS) for SVOCs and PAHs including benzo(a)pyrene and phthalates. CIDARS February 2025.
Verified Mar 2026Ohio Groundwater Standards - Volatile Organic Compounds (VOCs)
Current Ohio VAP and generic groundwater standards for common VOCs including benzene, TCE, PCE, and vinyl chloride. Cited to OAC 3745-300.
Verified Mar 2026Ohio PFAS Standards - Drinking Water & Groundwater Action Levels
Current Ohio PFAS action levels and federal MCLs for PFOA, PFOS, GenX, PFBS, PFHxS, and PFNA. Includes practical guidance for consultants and property owners.
Verified Mar 2026Soil
Ohio BUSTR Closure Action Levels
BUSTR closure action levels for UST sites in Ohio. Soil and groundwater screening levels by soil class. Source: 2022 BUSTR TGM.
Verified Mar 2026Ohio VAP Soil Standards - Metals
Current Ohio VAP generic direct-contact soil cleanup levels for arsenic, lead, chromium, cadmium, and other metals. Residential and commercial/industrial.
Verified Mar 2026Ohio BUSTR Corrective Action Standards
BUSTR corrective action levels for petroleum UST sites in Ohio. Delineation, groundwater, direct contact, and TPH by pathway.
Verified Mar 2026Ohio VAP Soil Standards - Pesticides and PCBs
Ohio VAP soil standards for pesticides, herbicides, and PCBs (Aroclors). CIDARS February 2025.
Verified Mar 2026Ohio VAP Soil Standards - SVOCs and PAHs
Ohio VAP soil standards for SVOCs and PAHs including benzo(a)pyrene, phthalates, and dioxins. CIDARS February 2025.
Verified Mar 2026Ohio VAP Soil Standards - Volatile Organic Compounds (VOCs)
Current Ohio VAP generic direct-contact soil cleanup levels for VOCs including benzene, TCE, PCE, vinyl chloride, and BTEX. Cited to OAC 3745-300.
Verified Mar 2026Ohio VAP Leach-Based Soil Values (LBSVs)
Ohio VAP generic leach-based soil values for organics by soil type and inorganics by source area. October 2008 guidance.
Verified Mar 2026Surface Water
Ohio Surface Water Quality Criteria - Aquatic Life
Ohio water quality standards for the protection of aquatic life, including hardness-dependent metals criteria. OAC 3745-1-35.
Verified Mar 2026Ohio Surface Water Quality Criteria - Human Health (Fish Consumption)
Ohio water quality standards for the protection of human health from fish consumption. OAC 3745-1-34, Table 34-1.
Verified Mar 2026Ohio Surface Water Quality Criteria - Human Health (Water Supply)
Ohio water quality standards for the protection of human health at public water supply intakes. OAC 3745-1-33, Table 33-1.
Verified Mar 2026Ohio Water Quality Standards (OAC 3745-1)
Complete Ohio water quality standards for surface waters under the Clean Water Act, including designated uses and numeric criteria.
Verified Mar 2026Air & Indoor Air
Ohio VAP Indoor Air Standards - VOCs (Residential and Commercial)
Ohio VAP generic indoor air standards for volatile organic compounds. Residential and commercial values from CIDARS.
Verified Mar 2026Ohio Vapor Intrusion Evaluation Guide
How to evaluate vapor intrusion in Ohio under VAP and DERR programs. EPA VISL calculator, sampling methods, and screening.
Verified Mar 2026