El Dorado Arkansas

C. Toxic Chemical Release Inventory ...

Table 16. Comparison of Estimated Exposed Dose to Health Guidelines for Individuals Exposed to On-Site and Off-Site Contaminants ... [Read More]

Healthy Arkansas
Diabetes • Obesity • Physical Activity • Tobacco Use • Worksite Wellness • BMI • Understanding BMI • Changing the Culture of Health: a Blueprint for Communities ... [Read More]

ATSDR - PHA - Popile, Incorporated, El Dorado, Union County, Arkansas
As previously discussed, the nearest public water supply wells are located within 2 miles of the site and are operatedby the City of El Dorado. In addition, Parkers Chapel Rural Water System has public supply wells 2 to 3 miles fromthe site. All of these wells are screened in the deep El Dorado aquifer, 700 to 800 feet below ground surface ( 6 ). Incontrast, groundwater contamination at the Popile site likely extends less than 1/4 mile downgradient of the site and isbelieved to be confined to the shallow Alluvium/Cockfield aquifer. Moreover, contaminant movement into deeperaquifers at the site is restricted by a thick, continuous clay layer located approximately 39 to 57 feet below groundsurface (see earlier discussion). Therefore, it is unlikely that any public water supply wells will be impacted bygroundwater contamination from the site. ... [Read More]

ATSDR - PHA - Great Lakes Chemical Corporation, El Dorado, Union County, Arkansas
In the first step of the COC selection process, the maximum contaminant concentrations arecompared directly to health comparison values. ATSDR considers site-specific exposure factors toensure selection of appropriate health comparison values. If the maximum concentration reported fora chemical was less than the health comparison value, ATSDR concluded that exposure to thatchemical was not of public health concern; therefore, no further data review was required for thatchemical. However, if the maximum concentration was greater than the health comparison value,the chemical was selected for additional data review. In addition, any chemicals detected that did nothave relevant health comparison values were also selected for additional data review. ... [Read More]

Arkansas
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The coverage maps are shown in a three color format, which relates to three estimated signal levels. ... [Read More]

ATSDR - PHA - Popile, Incorporated, El Dorado, Union County, Arkansas
ATSDR has identified four potential exposure pathways associated with the Popile site. These pathwaysinvolve the following potential exposures: 1) inhalation of contaminants in ambient air and air-borne dustsby past on-site workers and possibly by other individuals on and around the site; 2) ingestion ofcontaminated surface soils by individuals accessing the site, such as site investigative personnel, fisherman,hunters, and trespassers; 3) ingestion of contaminants in fish that are caught and eaten from Bayou de Loutrenear the site; and 4) ingestion of groundwater contaminants in drinking water from private wells locateddowngradient of the site (if such wells become contaminated in the future) and from private wells that maybe utilized on-site in the future. Of these potential pathways, exposure to site groundwater is believed to bethe most significant since ingestion of contaminants at the levels found in on-site groundwater could result inadverse health effects. It should be noted, ... [Read More]

ATSDR - PHA - Great Lakes Chemical Corporation, El Dorado, Union County, Arkansas
The Great Lakes Chemical Company (GLCC) manufactures elemental bromine and brominatedcompounds from salt brines extracted from deep wells. These chemical compounds are used for avariety of industrial and agricultural applications. The facility was constructed in 1965 on 1,200acres of land southwest of El Dorado, Arkansas. Great Lakes Chemical Company generates avariety of hazardous and nonhazardous wastes. Community members are concerned that emissionsfrom Great Lakes Chemical Company are causing an increased incidence of motor neuron disease(in particular, amyotrophic lateral sclerosis [ALS] or Lou Gehrig's disease). This public healthassessment is an evaluation of available environmental data, health outcome data , and communityhealth concerns related to chemicals released by Great Lakes Chemical Company to determinepossible human health impact. No environmental monitoring data were available before 1987. ... [Read More]

ATSDR - PHA - Great Lakes Chemical Corporation, El Dorado, Union County, Arkansas
Very few studies have been conducted to measure contaminants in groundwater beyond GLCC boundaries. The Environmental Protection Agency (EPA) conducted a study in 1988 of private groundwater wells near GLCC and describing private wells not being affected by GLCC industrial activities [2]. EPA conducted a more extensive off-site groundwater study in 1991 that identified 54 private wells within 1.5 miles of GLCC [13]. Although most wells were not being used for drinking water, 24 private wells were tested for chemical contamination. No site-related contaminants were detected in the private wells. However, polycyclic aromatic hydrocarbons (PAHs) were detected in 1991 above screening values in one well that went out of service in 1968 ( Appendix C, Table 2 ) [2]. It is not known if and how much of these PAHs were in well water before it went out of service. PAHs are not water soluble and were probably bound to sediments in the water which would alter its aesthetic quality (making the water ... [Read More]

ATSDR - PHA - Great Lakes Chemical Corporation, El Dorado, Union County, Arkansas
ATSDR selects one of five conclusion categories to summarize our findings about a site. Thesecategories are: 1) Urgent Public Health Hazard, 2) Public Health Hazard, 3) Indeterminate HealthHazard, 4) No Apparent Public Health Hazard, and 5) No Public Health Hazard. A category isselected from site specific conditions such as the degree of public health hazard based on thepresence and duration of human exposure, contaminant concentration, the nature of toxic effectsassociated with site related contaminants, presence of physical hazards, and community healthconcerns. Based on these criteria, ATSDR categorized the Great Lakes Chemical Corporationsite as a No Apparent Public Health Hazard based on available off-site environmentalmonitoring data and the lack of human exposure to the on-site contamination. ... [Read More]

ATSDR - PHA - Popile, Incorporated, El Dorado, Union County, Arkansas
Because cancer potency factors for the carcinogenic PAHs other than B(a)P have not been developed, the potencyfactor for B(a)P is used as a basis for determining relative carcinogenic potential for the other carcinogenic PAHs. Accordingly, the U.S. EPA has developed toxicity equivalence factors (TEFs) to rank the relative carcinogenicpotential of other PAHs to B(a)P. The TEFs currently utilized by EPA Region VI for carcinogenic PAHs are listedbelow. ...

Minimum Risk Level (MRL) is an estimate of daily human exposure to a contaminant below which non-cancer,adverse health effects are unlikely to occur. MRLs are developed for each route of exposure, such as ingestion andinhalation, and for the length of exposure. ... [Read More]