Laserfiche WebLink
<br />Table 3 <br />Summary of Regulatory Framework <br /> <br /> <br /> <br />u n • :.::::::::.:.:.:....:. .: lase roma aem a <br />CERCLA REPORTABLE QUANTITIES 100 Ib NA NA 1000 Ib <br />NESHAPS (NATIONAL EMISSION STANDARDS FOR X NA NA NA <br />HAZARDOUS AIR POLLUTANTS) <br />NATIONAL POLLUTANT DISHCARGE ELIMINATION X 0 0 X <br />SYSTEM <br />OSHA PERMISSIBLE EXPOSURE LIMIT (PEL) 10 mg/m NA NA NA <br />RCRA APPENDIX 8 LIST OF HAZARDOUS X 0 0 0 <br />CONSTITUENTS <br />RCRA D LISTED WASTES HAZARDOUS WASTE D-016 EXCLUDED NA NA <br />CHARACTERISTICS - TCLP LIMIT 10 m /L <br />RCRA U LISTED WASTES HAZARDOUS WASTE U-240 EXCLUDED NA NA <br />LAND DISPOSAL RESTRICTION LEVEL 10 m /K <br />SARA EPCRA X 0 0 0 <br />SARA HSPL (PRIORITY LIST OF HAZARDOUS X 0 0 0 <br />SUBSTANCES <br />SDWA (SAFE DRINKING WATER ACT -MAXIMUM 0.07 mg/L NA NA NA <br />CONTAMINANT LEVEL, MCL <br />WATER REPORTABLE QUANTITIES (HAZARDOUS 100 Ib NA NA 1,000 Ib <br />SUBSTANCES <br />UNIVERSAL TREATMENT STANDARDS, NON- 10 mg/Kg NA NA NA <br />WASTEWATER <br />UTS WW (UNIVERSAL TREATMENT, WASTEWATER 0.72 mg/L NA NA NA <br />-WASTEWATER LIMIT, WWL) <br />NA =Not Applicable X =Listed 0 =Nat Listed <br />2, 4-D (2,4-dichlorophenoxy acetic acid) <br />2,4,-D is the third most widely used broadleaf weed killer in the U.S. and Canada, and is the <br />most widely used weed killer worldwide. 2,4-D is a selective weed killer used for controlling <br />weeds in agricultural crops without damaging the crops. It is also widely used for turf grass <br />weed control in residential and nonresidential applications. 2,4-D was first introduced in 1947. <br />There are many forms of 2,4-D, including esters, amines, and salts. Environmental <br />toxicological, fate, and transport data for 2,4-D is presented in Table 2 of this SAP. <br />Based on extensive study, 2,4-D is considered a Toxicity Category III, slightly toxic, compound <br />with respect to dermal, oral, and inhalation exposure. 2,4-D is classified as a Toxicity Category <br />I chemical for eye exposure. Studies indicate 2,4-D is non-mutagenic and is unlikely to be <br />teratogenic. Evidence indicates 2,4-D is quickly expelled by mammals, including humans; and <br />does not accumulate in mammals or other organisms. Extensive research conducted in the <br />U.S., New Zealand, and Australia, as wells as studies of Vietnam veterans in the U.S. all <br />indicate 2,4-D is non-carcinogenic. In July 1998, USEPA issued its report on the tier one <br />screening of 168 chemicals suspected of being potential endocrine disrupters. These test <br />results placed 2,4-D in the category of chemicals known to have no endocrine effects. <br />Ecological effects of 2,4-D are variable. The chemical is slightly to moderately toxic to birds. <br />Some formulations are highly toxic to fish, whereas others are less so. Extensive research and <br />numerous published studies indicate 2,4-D is readily biodegradable and is practically incapable <br />of surviving in the open environment for more than a few days. Published data indicate its half- <br />886 Excavating, Inc., Edwards, Colorado December 17, 1996 <br />Montgomery Pit Facility 39210-003-034 <br />Draft Sampling and Analysis Plan 13 DAMES 8 MOORE <br />