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2017-03-17_REVISION - M2002004
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2017-03-17_REVISION - M2002004
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Entry Properties
Last modified
6/16/2021 6:25:34 PM
Creation date
3/17/2017 3:31:15 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2002004
IBM Index Class Name
REVISION
Doc Date
3/17/2017
Doc Name
Request for Technical Revision
From
GCC Rio Grande - Pueblo Plant
To
DRMS
Type & Sequence
TR6
Email Name
ERR
WHE
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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5 <br /> March 17,2016 <br /> Page 4 <br /> TABLE 1 <br /> MEASURED RCRA METALS CONCENTRATION IN QUARRY FORT HAYES <br /> LIMESTONE <br /> Crusher Rejects— Crusher Rejects— Quarry Floor— Average Concentrations <br /> June 11-13,2015 June 14-17,2015 June 17,2015 for Limestones <br /> Method: Total MEP Total MEP Total MEP Total <br /> Units: (mg/kg) (m ) (mg/kg) (m ) (mg/kg) (m ) (mg/kg) <br /> Arsenic 6.20 <0.005 5.54 <0.005 5.56 <0.005 <I —20(a),2.5*(b) <br /> Barium 164 0.218 150 0.288 257 0.118 100*(b) <br /> Cadmium 0.443 0.003 0.462 0.002 <0.250 1 0.002 0.007— 12(a),0.1*(') <br /> Chromium 11.3 1 <0.001 8.92 <0.001 11.9 0.003 10*(a&b) <br /> Lead 11.1 0.002 8.91 0.002 7.99 <0.001 9*(a), 8*(b) <br /> Mercury 0.0437 <0.0002 0.0321 <0.0002 0.0145 <0.0002 <0.010—0.290(a),0.05*(b) <br /> Selenium <1.25 0.011 1.82 0.011 <1.25 <0.005 0.03*(a),0.08*(1) <br /> Silver <0.250 <0.001 I <0.250 <0.001 <0.250 <0.001 0.12*(a), 1*(b) <br /> Notes: <br /> MEP=Multiple Extraction Procedure,EPA Method 1320 <br /> *=Mean <br /> (a)=Papers in Alloway(1990) <br /> (b)=Levinson(1974) <br /> Data reported in GCC(2015). <br /> The barium present likely is derived from barium carbonate(e.g.,witherite),which has the same approximate <br /> solubility as calcite. The solubility of barium is also strongly influenced by sulfate(Hem, 1985). The <br /> slightly elevated aqueous barium concentrations may attest to the relatively low sulfur concentration in the <br /> Fort Hayes Limestone. Any mixing with water containing a higher sulfate concentration would likely reduce <br /> the soluble barium concentration. <br /> POTENTIAL MONITORING PARAMETERS <br /> If groundwater were to occur downgradient from the quarry and plant site,this section addresses what is <br /> known about the potential character of that water and constituents that may be of interest for monitoring. <br /> Under the existing groundwater monitoring plan,if water were to occur in the only site monitoring well, <br /> MW-005,it would be analyzed for field pH,conductivity and temperature,and in the lab for sulfate,TDS, <br /> radium-226 and radium-228. This parameter list was developed based on results from the St.Charles River <br /> monitoring wells,which have since been proven to not be applicable for GCC monitoring and accordingly <br /> plugged and abandoned. To date,no groundwater has been observed in strata related to GCC operations of <br /> quarrying Fort Hayes Limestone. <br /> Given the overall typical limestone character of the Fort Hayes at the GCC quarry,the general water quality <br /> associated with any precipitation contacting and subsequently infiltrating to groundwater is expected to be <br /> similar to the water quality of a typical carbonate aquifer dominated by concentrations of calcium and <br /> bicarbonate. If groundwater associated with the Fort Hayes Limestone were to be observed,the water <br /> quality would be dependent on the location of infiltration to the unit. Older water that has resided a long <br /> time or traveled a long distance in the limestone would more likely be in equilibrium with calcium carbonate <br /> Close Consulting Group LLC <br />
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