Cleanup Levels For Hazardous Waste Sites		Federal Cleanup Levels
			State Cleanup Levels
			International Cleanup Levels
	These are some well-known, and some less well-known,		Toxicity Values, Physical Constants & Other Stuff
	sources for cleanup and/or screening levels at hazardous waste sites.		Acronyms
	Web sites with numeric values are highlighted in blue.		Arsenic and Lead Values
	FEDERAL Guidance Documents and Values
	USEPA Soil Screening Guidance (SSG)		View	Generic SSLs
		This is a great source for soil screening levels (SSLs), information on calculating site cleanup levels, and general guidelines for the use of levels at sites.
	USEPA Region 9 Preliminary Removal Goals (PRGs)		View	EPA Region 9 PRGs
		This source, called R9 PRGs for short, not only gives you lots of soil cleanup values in table form but also has detailed technical information on calculating site-specific cleanup goals, including inhalation of volatiles methodology, info on calculating csat and cleach values, and those up-to-date and in demand toxicity values and chemical physical constants. Also has some drinking water values. THIS IS THE KING OF US SOIL BENCHMARK TABLES (Leave it to Cali...)
	USEPA Region 6 Medium-Specific Screening Levels (MSLs)		View	EPA Region 6 MSL Page
		According to Region 6, these are very general and should be used as screening levels only (ok, got that out of the way). Tables have toxicity info and physical parameters in addition to the soil screening levels.	Get	MSLs - Pdf file 02/07
			Get	MSLs - Excel file 02/07
	USEPA Region 3 Risk-Based Concentrations (RBCs)		View	EPA Region 3 RBC Page
		This site presents the R3 Risk-Based Concentrations (RBCs) tables along with guidance on Monte Carlo, groundwater exposure point concentrations and assessing dermal exposure to and risk from soils.	Get	RBCs - Pdf file 04/07
			Get	RBCs - Excel file 04/07
	USEPA RAGS: Part B, Preliminary Removal Goals (RAGS, Part B)		View	RAGS Part B - PRGs
		RAGS Part B is the holy grail of cleanup levels. Simple document that gives the general risk (intake) equations used in a quantitative risk assessment and the general equations for cleanup goals or PRGs (just a note: people use the acronym PRGs for preliminary removal goals, preliminary remedial goals AND preliminary remediation goals....generally we are talking about the same thing). No actual soil levels but does have the original exposure default values used in EPA risk assessments and general calculations of cleanup goals. Examines various pathways and media, though mostly for use with soil. Some of the inhalation defaults have changed since this was written, but it is still a must have for those attempting to determine their own cleanup levels.
	Federal Drinking Water Standards and Health Advisories		View	MCLs and MCLGs
		This has the national primary (MCLs and MCLGs) and the secondary drinking water standards. A must-have for sites with possibly contaminated groundwater.
	MTBE Groundwater Clean-up Levels for LUST Sites		View	MTBE Benchmarks - US Map
		This is a really cool map of the states on EPA's website that shows the current and proposed cleanup levels for MTBE in each of the states. I have also included the TBA map.	View	TBA Benchmarks - US Map
	Risk Assessment Information System (RAIS)		View	Risk PRG Search
		This engine will let you search by chemical for the following; Primary and Proposed Drinking Water MCLs and MCLGs including radionuclides, Secondary Drinking Water SMCLs, Human Health WQCs for Aquatic Organisms and Drinking Water, Human Health WQC for Aquatic Organisms Only, and Federal Freshwater WQCs - Maximum and Continuous. Also, there is an eco engine for surface water, sediment and soil.	View	Eco PRG Search
	USEPA Soil Preliminary Remediation Levels for Radionucleides		View	1997 CERCLA Soil PRGs Memo
		This is a collection of sources of guidelines for soil levels for radionucleides in soil.	View	2002 CERCLA Rad PRGs Memo
			View	Rad PRG Calculator
	STATE Guidance Documents And Values
	Alabama: Risk-based Corrective Action		View	ARBCA Guidance Manual
		Alabama's RBCA values are outlined in Table 2-2 of its RBCA guidance. Basically, EPA Region 9 PRGs are the first tier.
	Alaska: Contaminated Sites Program		View	Table B1_Soil Levels
		Alaska distinguishes cleanup levels by zones (arctic vs non-arctic and depth). 18 AAC 75.341 has soil levels in Tables B1 and B2. Groundwater is in Table C of 18 AAC 75.345. If your chem is not listed, there are more options at the ADEC website.	View	Table B2_PHs in Soil
			View	To Table C - GW & SW Levels
	Alaska: Other Cleanup Levels		View	Screening Links
		This site has a list of the miscellaneous cleanup levels and methods for calculation under "Contaminant Screening and Establishing Cleanup Levels". Also other tech docs.
	Arizona: Soil Remediation Levels		View	Title 18 SRLs
		This is Title 18 Chapter 7 of the Arizona Administrative Code. Chapter 7 presents the Department of Environmental Quality's soil remediation levels (SRLs). Skip a third of the way down the page to the actual levels.Also including a table of the levels courteousy of AeroTech Labs. The SRLs may be changing in the summer of 2007 - here is the proposed rule and value change as of April 2007.	View	Clean Table of SRLs
			View	Proposed SRL Changes
	Arkansas: ADEQ Hazardous Waste Division		View	Tech Guidance
		Arkansas' Hazardous Waste Division relies on EPA Region VI MSLs for screening purposes. The majority of the sites are cleaned up to site-specific levels. Technical guidance for ADEQ's process can be found here. ADEQ does have a very simple checklist for ecological assessment and/or sampling that may be useful to some readers. The link takes you to the list of forms available to download, including sources for eco benchmarks and the eco checklist.
	California: OEHHA Standards		View	PHGs
		From the CalEPA website, the Office of Environmental Health Hazard Assessment presents PHGs for water, Acute RELs for air, Chronic RELs for air. Also a link to Proposition 65; Safe Harbor Levels is included.	View	Acute RELs
			View	Chronic RELs
			View	Prop 65
	California: CHHSLs		View	CHHSL Guidance
		This draft has California Human Health Screening Levels (CHHSLs) for residential and industrial soil (Table 1) and even for soil gas (Table 2).
	California: Soil Screening Numbers